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US20100267324A1 - Airflow regulator - Google Patents

Airflow regulator Download PDF

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Publication number
US20100267324A1
US20100267324A1 US12/798,360 US79836010A US2010267324A1 US 20100267324 A1 US20100267324 A1 US 20100267324A1 US 79836010 A US79836010 A US 79836010A US 2010267324 A1 US2010267324 A1 US 2010267324A1
Authority
US
United States
Prior art keywords
louver
strut
linkage
regulator
airflow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/798,360
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English (en)
Inventor
Verne Mutton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minova International Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2007905404A external-priority patent/AU2007905404A0/en
Application filed by Individual filed Critical Individual
Publication of US20100267324A1 publication Critical patent/US20100267324A1/en
Assigned to MINOVA AUSTRALIA PTY LTD reassignment MINOVA AUSTRALIA PTY LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MUTTON, VERNE
Assigned to MINOVA INTERNATIONAL LIMITED reassignment MINOVA INTERNATIONAL LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MINOVA AUSTRALIA PTY LTD
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/745—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity the air flow rate increasing with an increase of air-current or wind pressure

Definitions

  • This invention relates to an improved airflow regulator particularly to a louver type airflow regulator such as might be used in mining shafts, tunnels, raises, roadways and the like, hereinafter referred to as mine passages, to control or regulate airflow therethrough
  • Underground mines typically have a number of raises that act as a conduit for fresh air, with raises often formed on an air intake side of an ore body and on air return or opposite side of the ore body. Airflow at various levels in the mine or, in the case of metalliferous mines, individual mining areas called stopes, is then controlled by airflow regulators arranged, inter alia, at the entrances or exits of these raises.
  • airflow regulators used in mines are referred to as drop-board regulators and have been in use for some time.
  • Drop-board regulators typically comprise a steel H section frame fabricated in compartments of a convenient size. Into each compartment, hardwood boards are dropped down between the flanges of the H section.
  • the aperture of the regulator can be adjusted in area thereby altering the quantity of the airflow that is allowed into a given section of a mine.
  • drop-board regulators require manual adjustment.
  • a miner has to physically remove all the boards from the regulator. This is a heavy, arduous, and time consuming task which wastes man hours and reduces mine efficiencies.
  • WO2006/108228 discloses an improved louver type airflow regulator in which airflow is controlled by adjusting the degree to which the louver blades are open and which are free to swing into a fully open position during blasting or stope firing but return to the original positions after such a firing by means of a weight, gas strut or a spring.
  • the present invention relates to improvements in the airflow regulators disclosed in WO2006/108228.
  • an airflow regulator for a mine passage comprising:
  • louver blade pivotable to a predetermined position which in a range from a closed position in which the louver blade restricts at least a portion of the passage to an open position in which air is readily able to flow in the passage; and a linkage mechanism for pivoting the louver blade wherein the linkage mechanism includes a biasing strut mechanism which only activates to pivot the louver blade into the open position when a predetermined airflow is reached and biases the louver blade to its predetermined position after the airflow has reduced to less than the predetermined airflow.
  • the biasing strut mechanism forms part of the linkage mechanism when not activated and is generally movable with the linkage mechanism when not activated and so it allows the louver blades to be moved between open and closed positions without a substantial input of force being required.
  • the present invention is a significant improvement on the prior art, as it means that the degree of ventilation may be easily changed without too great a force having to be exerted on the linkage mechanism.
  • This arrangement is particularly advantageous as it allows for the air flow regulator to be easily automated, e.g. by provision of a powered actuator to move the strut mechanism.
  • the invention provides an air flow regulator that has the same strength as those of the prior art, but is reduced in weight and more flexible in its operation. Owing to the weight reduction, air flow regulators made to the present invention are easier to transport and install.
  • the regulator may comprise a plurality of louver blades.
  • the regulator may be an intake regulator and may comprise a plurality of louver blades which overlap in the closed position to close or restrict at least a portion of the passage.
  • the regulator may be an exhaust regulator and may comprise a plurality of louver blades which do not overlap in the closed position.
  • the regulator may comprise a frame in which the louver blade is mounted.
  • the louver blade may be mounted in a frame such that it may pivot therein around a lengthwise axis.
  • the biasing strut mechanism may be a constant force biasing strut mechanism which only activates when a predetermined constant force has been reached, e.g. from the air-flow creating a force on the louver blade that is connected to the strut mechanism via the linkage mechanism.
  • the biasing strut mechanism may activate by becoming compressible.
  • the predetermined constant force may be chosen to have a value in a range from the maximum amount of force required to move the louver blades and the force generated by the predetermined airflow. A person of skill in the art would easily be able to determine a suitable force at which the biasing strut mechanism would activate.
  • the predetermined airflow may be an airflow or pressure change from a deliberate or accidental explosion in a mine, for example from blasting or stope firing.
  • the biasing strut mechanism may comprise a fluid strut, for example a gas strut.
  • the biasing strut mechanism may have a cylinder, a piston and a piston rod.
  • the biasing strut mechanism may comprise a spring.
  • the strut mechanism is only activated when force in excess of 4000 Newton is applied to it, however the force can be varied to suit the required airflow regulator design.
  • the linkage mechanism may include a linkage bar that is operatively coupled to a louver blade via a linkage arm.
  • a linkage arm may be fixed to a louver blade and the other end of which is pivotally mounted to the linkage bar to urge the louver blades to the predetermined position.
  • the linkage bar may be vertically oriented.
  • the linkage mechanism has a selectively variable length wherein the regulator is arranged so that the louver blade is in a closed position when the linkage mechanism has a maximum length and the louver blade is in an open position when the linkage mechanism has a minimum length.
  • the linkage mechanism has a position control mechanism to selectively vary the length of the linkage mechanism.
  • the position control mechanism may be manually operated.
  • it may comprise an externally threaded rod located above a hollow strut and a handle and threaded sleeve, arranged such that by turning the handle the threaded rod may be raised or lowered into the hollow strut.
  • the position control mechanism may be automated, for example it might be in the form of a powered actuator operated by compressed air, electrically or hydraulically.
  • the actuator may also comprise a manually operated position control mechanism.
  • the linkage mechanism may have a minimum length by activation of the biasing strut mechanism or by operation of the position control mechanism.
  • the powered actuator may be remotely operated.
  • Use of remote operation is particularly useful if the airflow regulator is positioned in a location that is difficult to reach or unsafe to reach due to contaminated air.
  • remote operation can dramatically increase the speed at which the degree of ventilation may be altered. This leads to improved safety and efficiency.
  • the biasing strut mechanism is provided between the linkage bar and the position control mechanism.
  • one end of the biasing strut mechanism typically the cylinder end, may be mounted to the linkage bar by a bracket or the like fixed to the linkage bar such that movement of the linkage bar moves that end of the biasing strut mechanism.
  • the cylinder end may be pivotally mounted to the linkage bar.
  • the piston rod may be mounted to the position control mechanism.
  • the present invention provides a louver type airflow regulator which allows for continuous positional adjustment of the blades and uses a preferably constant force strut mechanism for return movement of the louvers which is relatively uncompressed at rest.
  • louver type airflow regulator for a mine passage comprising:
  • louver blades mounted in a frame and pivoting therein around a lengthwise axis between a predetermined position in which the louver blades combine to close or restrict at least a portion of the passage
  • the louver blades are arranged to open or open further, unless already fully open, and including a return mechanism to cause the blades to return to their predetermined position after the airflow has reduced to less than the predetermined airflow, and
  • the return mechanism includes a biasing means in the form of a strut mechanism that is operatively connected to a linkage mechanism that acts on one or more of the louver blades to urge them into the predetermined position and wherein the return mechanism is such that the strut mechanism is not activated except when the blades open after the predetermined airflow is reached.
  • the strut mechanism is a gas strut comprising a cylinder, piston and piston rod.
  • the gas strut is preferably a constant force strut mechanism which only moves/is activated when force in excess of 4000 Newtons is applied to it or some other predetermined force.
  • the return mechanism may includes a vertically oriented linkage bar that is coupled to each louver blade via a linkage arm one end of which is fixed to the louver blades and the other end of which is pivotally mounted to the linkage bar.
  • one end of the gas strut typically the cylinder end is pivotally mounted to the linkage bar by a bracket or the like fixed to the bar 25 such that movement of the bar moves that end of the strut.
  • a free end of the piston rod is preferably mounted to means for raising and lowering that end that hence the linkage bar.
  • the means is an externally threaded rod located above a hollow strut and a handle and threaded sleeve, turning the handle raising and lowering the threaded rod.
  • predetermined airflow can include within its scope 5 predetermined air pressure, and typically, though not exclusively relates to an increase in airflow/pressure due to blasting/stope firing.
  • Airflow will typically act on the blades due to air currents which may flow in either direction through the regulator. However these flows of normal ventilation air will not typically be of sufficient force to cause the louver blades to move.
  • FIG. 1 is a front view of a louver type regulator according to a first embodiment of the invention with the blades in an open position;
  • FIG. 2 is a top view of the louver type regulator as shown in FIG. 1 ;
  • FIG. 3 is a side view of the louver type regulator as shown in FIG. 1 with the blades in a fully open position;
  • FIG. 4 is a side view of the louver regulator as shown in FIG. 1 with the blades in a fully closed position;
  • FIG. 5 is a side view of the regulator as shown in FIG. 1 with the blades in a partly open position as a result of airflow or manual adjustment;
  • FIG. 7 is a front view of an automated louver type regulator according to a second embodiment of the invention.
  • FIG. 8 is a side view of the louver type regulator of FIG. 7 with the blades in a standard closed position
  • FIG. 9 is a side view of the louver type regulator of FIG. 7 with the blades halfway between an open and a closed position;
  • FIG. 10 is a side view of the louver type regulator of FIG. 7 with the blades in a standard open position;
  • FIG. 11 is a side view of the louver type regulator of FIG. 7 with the blades in a blast open position;
  • FIG. 12 is a plan view of the louver type regulator of FIG. 7 .
  • louver regulator 10 or module for mounting in a mine passage in FIGS. 1 to 4 .
  • the regulator 10 comprises a plurality of louver blades 12 , 14 , 16 and 18 mounted in a rectangular steel frame 20 .
  • the frame 20 is designed for retro-fitting to an in situ drop-board regulator frame 21 (refer to FIG. 2 ). However, it could also be fabricated in a new frame for fitting to mine openings.
  • Each louver blade 12 , 14 , 16 , 18 is mounted at its opposed ends in the frame 20 and is able to pivot around its lengthwise axis 22 between a closed or partially closed position in which the louver blades 12 , 14 , 16 , 18 combine to close or restrict gas flow through at least a portion of the passage and an open position in which gas, typically air is able to more easily flow between the louver blades 12 , 14 , 16 , 18 and through the passage.
  • the axis 22 is defined by/located in a bar 22 mounted, typically welded, to the rear of the louver blade 12 , 14 , 16 , 18 and adjacent an upper edge thereof.
  • louver blades 12 , 14 , 16 , 18 overlap in the closed position which is especially useful for an intake louver regulator as it results in the forming of a seal, due to pressure on the louver blade front faces 82 , 84 , 86 , 88 of passage ventilation air. It would also be possible to use a non lapped arrangement for an exhaust louver regulator.
  • An adjustment and biasing mechanism 90 for acting on each louver blade 12 , 14 , 16 , 18 is provided.
  • the adjustment and biasing mechanism 90 includes a vertical linkage bar 30 that is coupled to each louver blade 12 , 14 , 16 , 18 via linkage arms in the form of double brackets 32 , one end of which is fixed (welded) to the louver blades 12 , 14 , 16 , 18 and the other end of which is mounted by a respective coupling pivot 34 to the linkage bar 30 .
  • the biasing mechanism 90 includes a constant force gas strut 50 including a cylinder 52 and piston rod 54 .
  • the gas strut 50 is set to activate (i.e. the piston rod 54 moves into the cylinder 52 compressing the gas inside) when a blast force superimposed on the louver blades transmits a force through the linkage bar and (typically of 4000 Newton or more) is applied to the piston rod 54 .
  • the cylinder end 53 of the gas strut 50 is pivotally mounted to the linkage bar 30 by a bracket or clevis 55 or the like fixed to the bar 30 such that movement of the bar 30 moves that end of the strut 50 and vice versa.
  • a free end 56 of the piston rod 54 is pivotally mounted to an externally threaded rod 59 .
  • a position control mechanism 58 which includes a handle 60 in the form of cruciform intersecting levers, or a wheel, is fixed to an internally threaded sleeve 62 located above a hollow strut 64 .
  • louvers 12 , 14 , 16 , 18 This makes adjustment of the louvers 12 , 14 , 16 , 18 easier and safer as the gas strut 50 does not have to be compressed or decompressed as the louvers 12 , 14 , 16 , 18 are adjusted to change the degree of ventilation. Adjustment is also continuous between the fully open and closed positions by simple rotation of the handle/levers 60 , to set the louver blades 12 , 14 , 16 , 18 to allow the required amount of ventilation.
  • the gas strut 50 only becomes compressed during greatly increased air flow 100 such as would occur during blasting or stope firing when the position of the threaded rod 59 remains fixed and the louver blades 12 , 14 , 16 , 18 rotate in an anti-clockwise or upward direction “A”, pushing the piston rod 54 into the cylinder 52 and compressing the gas strut 50 .
  • Such action provides a bias to return the louver blades 12 , 14 , 16 , 18 to their set position after the greatly increased air flow 100 has subsided after firing.
  • Louver regulator 110 is an automated louver regulator in that the manually operated mechanism 58 of the first embodiment for adjusting the position of the strut 50 is replaced by a powered actuator.
  • Like features of the second embodiment to features of the first embodiment are identified by like reference numerals.
  • Louver regulator 110 comprises a plurality of louver blades 112 , 114 , 116 , 118 mounted in a rectangular steel frame 120 .
  • the frame 120 is designed for retro-fitting to an in situ drop-board regulator frame 121 shown in FIG. 12 .
  • the regulator 110 could also be fabricated in a new frame (not shown) for fitting to a mine opening or a passage way.
  • Each louver blade 112 , 114 , 116 , 118 is mounted at its opposed ends (one of which is indicated as 122 a in FIG. 7 ) in the frame 120 and is able to pivot around its lengthwise axis 122 between a closed or partially closed position (such as that shown in FIGS.
  • louver blades 112 , 114 , 116 , 118 combine to close or restrict gas flow through at least a portion of the passage and an open position (shown in FIGS. 10 and 11 ) in which gas, typically air is able to more easily flow between the louver blades 112 , 114 , 116 , 118 and through the passage.
  • the axis 122 is defined by/located in a bar 122 mounted, typically welded, to the rear of the louver blade 112 , 114 , 116 , 118 and adjacent an upper edge thereof.
  • louver blades 112 , 114 , 116 , 118 overlap in the closed position which is especially useful for an intake louver as it results in the forming of a seal, due to pressure on the louver blade front faces 182 , 184 , 186 , 188 from passage ventilation air. It would also be possible to use a non lapped arrangement for an exhaust louver.
  • An adjustment and biasing mechanism 190 for acting on each louver blade 112 , 114 , 116 , 118 is provided.
  • the adjustment and biasing mechanism 190 includes a vertical linkage bar 130 that is operably coupled to each louver blade 112 , 114 , 116 , 118 via linkage arms in the form of double brackets 132 , one end of which is fixed (welded) to the louver blades 112 , 114 , 116 , 118 and the other end of which is mounted by respective coupling pivots 134 to the linkage bar 130 .
  • the biasing mechanism 190 includes a constant force gas strut 150 including a cylinder 152 and piston rod 154 .
  • the gas strut 150 is set to activate (i.e. the piston rod 154 moves into the cylinder 152 compressing the gas inside) when a strong force (typically of 4000 Newton or more) is applied to the piston rod 154 .
  • the strong force is selected to be approximately the force applied to the louver blades 112 , 114 , 116 , 118 by air flow created during blasting in a mine.
  • the cylinder end 153 of the gas strut 150 is pivotally mounted to the linkage bar 130 by a bracket 155 or the like fixed to the bar 130 such that movement of the bar 130 moves that end of the strut 150 and vice versa.
  • the powered actuator 175 comprises a body 171 , rod housing 172 and an extendable rod 173 . Free end 156 of piston rod 154 is attached to free end 174 of actuator rod 173 by connector 178 .
  • the actuator 175 is arranged such that through movement of actuator rod 173 from an extended position to a retracted position, as shown respectively in FIGS. 8 and 10 , the louver blades 112 , 114 , 116 , 118 may be moved from a closed position (under regular air flow) to an open position.
  • a closed position under regular air flow
  • the louver blades 112 , 114 , 116 , 118 are closed, and when the actuator rod 173 is retracted the louver blades 112 , 114 , 116 , 118 are open.
  • the louver blades 112 , 114 , 116 , 118 are partly open (as shown in FIG. 9 ).
  • the actuator rod 173 may be extended and retracted by remote operation such that a desired rate of flow of ventilation air may be obtained, for example as shown in FIG. 9 .
  • the gas strut 150 When the module 110 is “at rest”—i.e. not during blasting or at times where the airflow is below the predetermined level, in the fully open position shown in FIG. 10 or the fully closed position shown in FIG. 8 , or any intermediate position such as that shown in FIG. 9 , the gas strut 150 is relatively uncompressed. This makes adjustment of the louvers 112 , 114 , 116 , 118 by actuator 175 easier and safer as the gas strut 150 does not have to be compressed or decompressed as the louvers 112 , 114 , 116 , 118 are adjusted to change the degree of ventilation.
  • actuator 175 does not have to overcome the resisting force of the gas strut 150 to effect adjustment of the position of the louvers 112 , 114 , 116 , 118 .
  • the power consumption of the actuator 175 is less than that required in the prior art, as the force required to move the louvers 112 , 114 , 116 , 118 is much less.
  • the actuator 175 has to be rated to at least the resisting force of the gas strut 150 or greater so that it is able to withstand transmitted forces on the louver blades 112 , 114 , 116 , 118 , e.g. from the impact of the increased air flow 100 from an explosion. This is in order that the actuator 175 is not deflected from its predetermined position by the impact of the increased air flow 100 .
  • the actuator 175 is provided with a mechanism (not shown) for manual operation such that if electric power is not available the louver regulator 110 may still be operated by manual extension and retraction of the extensible rod 173 of the actuator 175 .
  • the actuator 75 is a Linak® LA36 actuator, but it will be appreciated that any suitable actuator might be used.
  • FIG. 11 shows the louver regulator 110 with its louver blades 112 , 114 , 116 , 118 having been forcibly rotated into an open position by increased air flow 100 , such as from blasting, thereby compressing the gas strut 150 .
  • the present invention provides a low cost, light-weight louver blade base regulator which is easy to adjust and which provides continuous adjustment of the position of the louver blades.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air-Flow Control Members (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
US12/798,360 2007-10-03 2010-04-02 Airflow regulator Abandoned US20100267324A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2007905404A AU2007905404A0 (en) 2007-10-03 Improved airflow regulator
AU2007905404 2007-10-03
IBPCT/IB2008/002618 2008-10-03
PCT/IB2008/002618 WO2009044267A1 (fr) 2007-10-03 2008-10-03 Régulateur de débit d'air amélioré

Publications (1)

Publication Number Publication Date
US20100267324A1 true US20100267324A1 (en) 2010-10-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
US12/798,360 Abandoned US20100267324A1 (en) 2007-10-03 2010-04-02 Airflow regulator

Country Status (7)

Country Link
US (1) US20100267324A1 (fr)
CN (1) CN101874183B (fr)
AU (1) AU2008306570B2 (fr)
CA (1) CA2701426A1 (fr)
RU (1) RU2517103C2 (fr)
WO (1) WO2009044267A1 (fr)
ZA (1) ZA201001747B (fr)

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US20140106658A1 (en) * 2012-10-17 2014-04-17 Ford Global Technologies, Llc Vehicle cabin air management
US20150176327A1 (en) * 2013-12-19 2015-06-25 Green Winows Corp. Green Windows System
JP2016023813A (ja) * 2014-07-16 2016-02-08 三菱電機株式会社 風向調整機構、及びその風向調整機構を備えた空気調和機
RU2587192C1 (ru) * 2014-11-26 2016-06-20 Федеральное государственное бюджетное учреждение науки "Горный институт Уральского отделения Российской академии наук" Способ мониторинга расходов воздуха в сети горных выработок и система для его осуществления
EP2463598A3 (fr) * 2010-12-13 2017-12-13 Gesellschaft für sicherheits- und brandschutz- Dispositif de clapets de réglage pour une installation de pression différentielle de protection contre les fumées et procédé de commande d'un dispositif de clapets de réglage
US10721843B2 (en) * 2015-04-30 2020-07-21 Hewlett Packard Enterprise Development Lp Cooling via a sleeve connector
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Citations (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2299832A (en) * 1938-05-02 1942-10-27 John Spargo Louver construction
US2355412A (en) * 1943-02-18 1944-08-08 Homer M Bird Ventilator shutter
US2624265A (en) * 1949-11-17 1953-01-06 John Spargo Spring counterbalanced louver mechanism
US2894445A (en) * 1956-11-23 1959-07-14 Harvey F Schulze Wind-responsive louver construction
US3261373A (en) * 1963-08-01 1966-07-19 Ventfabrics Inc Damper blade linkage
US3346007A (en) * 1962-08-22 1967-10-10 Israel State Gas flow control louvres
US3399882A (en) * 1966-01-08 1968-09-03 Bilstein August Kg Hydraulic shock absorber assembly with parallel-connected gas spring and automatically controllable damping, particularly for motor vehicles
US3561346A (en) * 1969-02-26 1971-02-09 Us Navy Blast actuated module valve
US3643583A (en) * 1969-01-21 1972-02-22 Int Harvester Co Blast valve actuator
US3662670A (en) * 1970-05-26 1972-05-16 Bell Telephone Labor Inc Blast-actuated valve-closure system
US3668999A (en) * 1970-09-21 1972-06-13 American Warming Ventilation Fluid back pressure damper
US3756137A (en) * 1972-02-24 1973-09-04 H Scharres Fire, smoke and blast damper
US3826179A (en) * 1972-10-20 1974-07-30 American Warming Ventilation Differential pressure responsive damper
US3837268A (en) * 1972-11-09 1974-09-24 American Warming Ventilation Protective damper for gas exhaust duct
US4707882A (en) * 1985-02-12 1987-11-24 Watts John R Pneumatic damper
US4709506A (en) * 1986-10-16 1987-12-01 Lukaszonas William S Swivel shutter assembly
US5052752A (en) * 1990-06-21 1991-10-01 Fisher Dynamics Corporation Infinitely adjustable linear seat recliner
US5156755A (en) * 1989-07-27 1992-10-20 Cass Ronald L Adjustable apparatus for forming voids in concrete
US5224511A (en) * 1987-04-25 1993-07-06 Babcock Sempell Ag Spring-loaded safety valve
US5306210A (en) * 1991-08-15 1994-04-26 Smit Dirk V Z Louvre type roof structures
US5538115A (en) * 1993-04-08 1996-07-23 Stabilus Gmbh Motor driven rotational to translational actuator for a piston cylinder
US5839719A (en) * 1995-12-21 1998-11-24 Stabilus Gmbh Pneumatic strut for a motor vehicle with an adjustable limit position
US5876008A (en) * 1995-01-17 1999-03-02 Ergotron, Inc. Suspension system for video monitor or other equipment
US6347489B1 (en) * 1998-05-01 2002-02-19 Chester R. Marshall, Jr. Storm anchor system including foundation column with adjustable saddle-type positioning members
US6419196B1 (en) * 1996-06-07 2002-07-16 Ergotron, Inc. Pivot assembly and support system
US20030006539A1 (en) * 1999-08-19 2003-01-09 James Bertram Gas spring
US20030037621A1 (en) * 2000-03-21 2003-02-27 Katsuyuki Totsu Bit adopter for torque detector
US6634627B1 (en) * 2001-11-13 2003-10-21 General Motors Corporation Pneumatic spring with adjustable stop for stroke control
US20040040821A1 (en) * 2002-09-04 2004-03-04 Eason Donald V. Drop safe having a gas spring control system
US20040043722A1 (en) * 2002-08-27 2004-03-04 Suspa Holding Gmbh Opening flap, in particular flue gas escape flap, and opening mechanism therefor
US20040166797A1 (en) * 2003-02-03 2004-08-26 Steven Thrasher Electrically isolated systems, methods and devices for controlling ventilation registers
US20050230203A1 (en) * 2003-04-15 2005-10-20 Suspa Holding Gmbh Adjustable-length gas spring
US20060103276A1 (en) * 2003-05-21 2006-05-18 Luciano Salice Carcass member with flap
US20060175743A1 (en) * 2002-09-10 2006-08-10 Chung Eui H Length adjustable gas spring
WO2006108228A1 (fr) * 2005-04-15 2006-10-19 Minova International Limited Regulateur de flux d'air
US20060284354A1 (en) * 2005-06-16 2006-12-21 Avm, Inc. Gas spring assembly with selectable intermediate stop
US7938418B1 (en) * 2007-10-29 2011-05-10 Air Lift Company Upper mount assembly for air spring suspensions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100414198C (zh) * 2001-12-25 2008-08-27 乐金电子(天津)电器有限公司 吸顶式空调机控制风量的装置及方法
CN2596866Y (zh) * 2002-11-08 2004-01-07 清华大学 一种带有均压器的座椅送风散流器
JP4742786B2 (ja) * 2005-09-29 2011-08-10 オイレスＥｃｏ株式会社 ルーバ装置

Patent Citations (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2299832A (en) * 1938-05-02 1942-10-27 John Spargo Louver construction
US2355412A (en) * 1943-02-18 1944-08-08 Homer M Bird Ventilator shutter
US2624265A (en) * 1949-11-17 1953-01-06 John Spargo Spring counterbalanced louver mechanism
US2894445A (en) * 1956-11-23 1959-07-14 Harvey F Schulze Wind-responsive louver construction
US3346007A (en) * 1962-08-22 1967-10-10 Israel State Gas flow control louvres
US3261373A (en) * 1963-08-01 1966-07-19 Ventfabrics Inc Damper blade linkage
US3399882A (en) * 1966-01-08 1968-09-03 Bilstein August Kg Hydraulic shock absorber assembly with parallel-connected gas spring and automatically controllable damping, particularly for motor vehicles
US3643583A (en) * 1969-01-21 1972-02-22 Int Harvester Co Blast valve actuator
US3561346A (en) * 1969-02-26 1971-02-09 Us Navy Blast actuated module valve
US3662670A (en) * 1970-05-26 1972-05-16 Bell Telephone Labor Inc Blast-actuated valve-closure system
US3668999A (en) * 1970-09-21 1972-06-13 American Warming Ventilation Fluid back pressure damper
US3756137A (en) * 1972-02-24 1973-09-04 H Scharres Fire, smoke and blast damper
US3826179A (en) * 1972-10-20 1974-07-30 American Warming Ventilation Differential pressure responsive damper
US3837268A (en) * 1972-11-09 1974-09-24 American Warming Ventilation Protective damper for gas exhaust duct
US4707882A (en) * 1985-02-12 1987-11-24 Watts John R Pneumatic damper
US4709506A (en) * 1986-10-16 1987-12-01 Lukaszonas William S Swivel shutter assembly
US5224511A (en) * 1987-04-25 1993-07-06 Babcock Sempell Ag Spring-loaded safety valve
US5156755A (en) * 1989-07-27 1992-10-20 Cass Ronald L Adjustable apparatus for forming voids in concrete
US5052752A (en) * 1990-06-21 1991-10-01 Fisher Dynamics Corporation Infinitely adjustable linear seat recliner
US5306210A (en) * 1991-08-15 1994-04-26 Smit Dirk V Z Louvre type roof structures
US5538115A (en) * 1993-04-08 1996-07-23 Stabilus Gmbh Motor driven rotational to translational actuator for a piston cylinder
US5876008A (en) * 1995-01-17 1999-03-02 Ergotron, Inc. Suspension system for video monitor or other equipment
US5839719A (en) * 1995-12-21 1998-11-24 Stabilus Gmbh Pneumatic strut for a motor vehicle with an adjustable limit position
US6419196B1 (en) * 1996-06-07 2002-07-16 Ergotron, Inc. Pivot assembly and support system
US20030001057A1 (en) * 1996-06-07 2003-01-02 Ergotron, Inc. Pivot assembly and support system
US6347489B1 (en) * 1998-05-01 2002-02-19 Chester R. Marshall, Jr. Storm anchor system including foundation column with adjustable saddle-type positioning members
US20030006539A1 (en) * 1999-08-19 2003-01-09 James Bertram Gas spring
US20030037621A1 (en) * 2000-03-21 2003-02-27 Katsuyuki Totsu Bit adopter for torque detector
US6634627B1 (en) * 2001-11-13 2003-10-21 General Motors Corporation Pneumatic spring with adjustable stop for stroke control
US20040043722A1 (en) * 2002-08-27 2004-03-04 Suspa Holding Gmbh Opening flap, in particular flue gas escape flap, and opening mechanism therefor
US20040040821A1 (en) * 2002-09-04 2004-03-04 Eason Donald V. Drop safe having a gas spring control system
US20060175743A1 (en) * 2002-09-10 2006-08-10 Chung Eui H Length adjustable gas spring
US20040166797A1 (en) * 2003-02-03 2004-08-26 Steven Thrasher Electrically isolated systems, methods and devices for controlling ventilation registers
US20050230203A1 (en) * 2003-04-15 2005-10-20 Suspa Holding Gmbh Adjustable-length gas spring
US20060103276A1 (en) * 2003-05-21 2006-05-18 Luciano Salice Carcass member with flap
WO2006108228A1 (fr) * 2005-04-15 2006-10-19 Minova International Limited Regulateur de flux d'air
US20080254733A1 (en) * 2005-04-15 2008-10-16 Verne Mutton Airflow Regulator
US20060284354A1 (en) * 2005-06-16 2006-12-21 Avm, Inc. Gas spring assembly with selectable intermediate stop
US7938418B1 (en) * 2007-10-29 2011-05-10 Air Lift Company Upper mount assembly for air spring suspensions

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2463598A3 (fr) * 2010-12-13 2017-12-13 Gesellschaft für sicherheits- und brandschutz- Dispositif de clapets de réglage pour une installation de pression différentielle de protection contre les fumées et procédé de commande d'un dispositif de clapets de réglage
RU2491424C1 (ru) * 2011-12-19 2013-08-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Новосибирский государственный технический университет" Способ проветривания систем горных выработок
US20140106658A1 (en) * 2012-10-17 2014-04-17 Ford Global Technologies, Llc Vehicle cabin air management
US10543736B2 (en) * 2012-10-17 2020-01-28 Ford Global Technologies, Llc Vehicle cabin air management
US20150176327A1 (en) * 2013-12-19 2015-06-25 Green Winows Corp. Green Windows System
JP2016023813A (ja) * 2014-07-16 2016-02-08 三菱電機株式会社 風向調整機構、及びその風向調整機構を備えた空気調和機
RU2587192C1 (ru) * 2014-11-26 2016-06-20 Федеральное государственное бюджетное учреждение науки "Горный институт Уральского отделения Российской академии наук" Способ мониторинга расходов воздуха в сети горных выработок и система для его осуществления
US10721843B2 (en) * 2015-04-30 2020-07-21 Hewlett Packard Enterprise Development Lp Cooling via a sleeve connector
CN112691496A (zh) * 2020-12-04 2021-04-23 九江华秋电路有限公司 一种用于pcb板加工车间的除尘设备
CN116294167A (zh) * 2023-03-15 2023-06-23 上海外高桥造船有限公司 气缸外置型气动百叶窗

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CN101874183B (zh) 2014-05-07
RU2517103C2 (ru) 2014-05-27
CA2701426A1 (fr) 2009-04-09
ZA201001747B (en) 2011-05-25
AU2008306570B2 (en) 2012-11-08
WO2009044267A1 (fr) 2009-04-09
AU2008306570A1 (en) 2009-04-09
CN101874183A (zh) 2010-10-27

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