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WO1998038453A1 - Pompe a deplacement positif - Google Patents

Pompe a deplacement positif Download PDF

Info

Publication number
WO1998038453A1
WO1998038453A1 PCT/US1998/002931 US9802931W WO9838453A1 WO 1998038453 A1 WO1998038453 A1 WO 1998038453A1 US 9802931 W US9802931 W US 9802931W WO 9838453 A1 WO9838453 A1 WO 9838453A1
Authority
WO
WIPO (PCT)
Prior art keywords
lubricant
piston
predetermined amount
motor
timer
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.)
Ceased
Application number
PCT/US1998/002931
Other languages
English (en)
Inventor
Timothy L. Ladouceur
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.)
BIJUR LUBRICATING CORP
Original Assignee
BIJUR LUBRICATING CORP
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
Application filed by BIJUR LUBRICATING CORP filed Critical BIJUR LUBRICATING CORP
Priority to AU61676/98A priority Critical patent/AU6167698A/en
Publication of WO1998038453A1 publication Critical patent/WO1998038453A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/02—Lubricating-pumps with reciprocating piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/02—Lubricating-pumps with reciprocating piston
    • F16N13/06—Actuation of lubricating-pumps
    • F16N13/10—Actuation of lubricating-pumps with mechanical drive
    • F16N13/14—Actuation of lubricating-pumps with mechanical drive with cam or wobble-plate on shaft parallel to the pump cylinder or cylinders

Definitions

  • This invention relates generally to the field of pumps, more particularly, to positive displacement pumps and associated lubrication reservoirs for lubrication.
  • U.S. patents concern mechanically-controlled lubrication pumps.
  • U.S. Pat. No.2,792,911 discloses a divisional lubricant feeder for transmitting lubricant from a central station to a plurality of lubricating devices. In particular, the device comprises a plurality of blocks of the same size but having internal cylinders of respectively different sizes to deliver respective amounts of lubricant.
  • U.S. Patent No. 2,856,024 discloses a lubricant pump for use in a centralized lubrication system.
  • U.S. Patent No. 2,899,017 discloses a lubricant pump that utilizes an external motor for driving a cam element to activate the pump.
  • U.S. Patent No. 3,071 ,208 discloses a mechanical timer for use with a lubricating device (187) on a vehicle; power to the timer and the lubricating device is provided by the vehicle's ignition switch.
  • U.S. Pat. No. 3,461 ,990 discloses a trailer lubrication system whose pump is activated when the trailer suspension is vertically displaced.
  • U.S. Pat. No. 3,487,892 discloses a pump that permits the volume of output lubricant to be varied by varying the length of the pumping element stroke and by varying the frequency of the movement of the pumping element.
  • 4,527,965 discloses a lubrication means for cyclically discharging lubricant into a fluid working chamber by using a rotary piston.
  • U.S. Pat. No. 4,758,100 discloses an automatic lubricant metering device that comprises a housing having an internal piston that conveys lubricant through a feeder line to a lubricating location of a revolving shaft and wherein the advance of the piston is a function of the abrasion of the pin that drives the piston.
  • 4,801 ,051 (Lewis et al.) is directed to a flow micro-adjustment assembly for use with a dispensing device (e.g., a lubricating pump).
  • a dispensing device e.g., a lubricating pump.
  • U.S. Pat. No. 4,893,697 discloses an injection lubricator which includes a lubricant pump having a pumping piston actuated by a pneumatic pulse to deliver a pulse of lubricant.
  • U.S. Patent No. 5,002,156 (Gaunt) discloses a positive displacement pump that utilizes a lubricating piston that delivers one pulse of lubricant for air pulse input supplied from an air pulse source.
  • 5,178,233 discloses a continuous lubrication method and apparatus whereby a memory retentive material when inserted within a lubricant reservoir, compresses when initially subjected to lubricant pressure and later expands back to its original shape as lubricant seeps from the reservoir.
  • the following U.S. patents disclose electrically-controlled lubricating pumps.
  • U.S. Pat. No. 4,836,334 discloses a lubricating device that uses a timer for delivering a given quantity of lubricant.
  • 5,402,913 discloses an electrically-controlled lever for controlling a pump to deliver a particular quantity of lubricant; the control may comprise a source of electrical pulses with adjustable pulse duration with or without a cyclically-operated timing relay or can be any duration regulated directly or indirectly in response to the speed of an engine or the speed of a vehicle.
  • 5,404,966 discloses an automatic lubricating device that comprises a container filled with lubricant, a slidable piston fitted within a safety means, a frame welded onto the container, a gas generating means fixed onto the frame, a lubricant outlet and an electronic circuit; when the piston is at the top dead center, the space defined between the bottom of the gas generating member and the upper side of the piston is substantially smaller compared to the rate of gas generation so that prompt initiation of the lubrication is possible.
  • U.S. Pat. No. 5,509,501 discloses a battery-operated, electronically-driven lubricating devices. However, unlike the present invention, as is discussed below, the devices disclosed in U.S. Pat. No. 5,509,501 (Damme) do not control the flow rate of the grease since the discharge of grease is dependent upon the pressure developed by the spring.
  • U.S. Patent Nos. 2,011 ,616 (Clarke); 2,294,673 (Prete et al.); 2,857,020 (Otto); 2,985,256 (Simmons et al.); 3,430,731 (Satzinger); 3,498,413 (Krieger); 3,739,877 (Oliveri); 3,842,939 (Satzinger); 5,303,800 (Persson).
  • U.S. Patent No. 5,449,050 discloses a grease cup that cooperates with a valve for dispensing lubricant.
  • lubricant e.g. , grease or oil
  • the apparatus comprises a pump having an inlet port and an outlet port and further comprises a piston movable within a cylinder that is in fluid communication with the inlet port and the outlet port.
  • the piston, cylinder, inlet port and outlet port are contained within a housing.
  • the apparatus further comprises an ancillary lubricant reservoir coupled to the inlet port.
  • the apparatus further comprises means, contained within the housing and coupled to the piston, for positively controlling the dispensing of the predetermined amount of lubricant from the inlet port to the outlet port.
  • the apparatus further comprises power means, contained within the housing, for powering the means for positively controlling the dispensing of the predetermined amount of lubricant to permit stand-alone operation of the apparatus.
  • the method comprises the steps of: (a) providing a lubricant reservoir that is in fluid communication with a cylinder containing a piston and whereby the reservoir, cylinder and piston are located at a site; (b) automatically driving the piston in a first direction to withdraw a predetermined amount of lubricant from the reservoir through a first check valve; (c) automatically driving the piston in a second direction using positive control to dispense the predetermined amount of lubricant out of the cylinder through a second check valve; (d) repeating the steps b and c in accordance with a user-adjustable lubrication cycle; and (e) providing power means for at the site for supporting steps b-e to permit stand-alone operation of the piston.
  • Fig. 1 is a block diagram of the present invention
  • Fig. 2 is a side view of the present invention
  • Fig. 3 is a side view of a grease lubricator reservoir showing an internal piston partially compressed
  • Fig. 4 is a side view of an oil lubricator reservoir
  • Fig. 5 is an isometric view of the pump assembly with the lid removed;
  • Fig. 6 is a cross-sectional view of the pump taken along line 6-6 of Fig. 5;
  • Fig. 7 is a bottom view, partially cut-a-way, of the gear reduction assembly taken along line 7-7 of Fig. 5;
  • Fig. 8 is top view of the pump assembly taken along line 8-8 of Fig. 5 with the pump shown in phantom;
  • Fig. 9 is a timing diagram of the microswitch and the DC motor.
  • Fig. 10 is an electrical schematic of the PCB timer. DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION Referring now in greater detail to the various figures of the drawing wherein like reference characters refer to like parts, a positive displacement pump (hereinafter "PDP") constructed in accordance with the present invention is shown generally at 20 in Fig. 1.
  • PDP positive displacement pump
  • the PDP 20 is a self contained piston discharge pump actuated by a DC motor driven cam.
  • the PDP 20 comprises a pump assembly 22 and a lubricant reservoir 24.
  • the pump assembly 22 basically comprises a piston 26, an associated cylinder 28, biasing member 30, an inlet check valve 32, an outlet check valve 34, a piston cam 36, a position cam 38, a microswitch 40, a PCB (printed circuit board) timer 42, a D.C. motor 44, a gear reduction transmission assembly 46 and a power pack 48.
  • the piston 26, cylinder, biasing member 30, input check valve 32 and output check valve 34 define the pump 50.
  • the lubricant reservoir 24 is a disposable, transparent, spring fed canister (LUBESITE model 404) that is filled with grease, e.g., lithium-based N. L.G.I. No. 1 grease.
  • the reservoir 24 is releasably coupled to the pump assembly 22 at its input.
  • the grease 56 is pushed out of the reservoir 24 by operation of a biasing means 58 and a piston 60, as well as by a partial vacuum created internally by the pump assembly 22, as will be discussed later.
  • the reservoir 24 comprises a threaded portion 62 (Fig. 4) that is received by a corresponding threaded inlet port 64 (Fig. 5) of the pump assembly 22.
  • the pump assembly 22 (Fig. 2) also comprises an outlet port 65 (which is also threaded but not shown) to which there is releasably coupled (e.g., a threaded engagement) a manifold 52.
  • Releasably coupled to the manifold 52 are a plurality of Bijur flow control fittings; each of these fittings comprise Bijur control units (e.g. , CJB- 5 Bijur control units) 54A, 54B and 54C for evenly distributing the predetermined amount of grease (e.g., 2 cc) to multiple lube points (not shown) via respective tubing 55A, 55B and 55C.
  • Bijur control units e.g. , CJB- 5 Bijur control units
  • a single fitting could also be directly coupled to the pump assembly 22 output without the need for the manifold 52 if only a single lube point is to be connected to the PDP 20.
  • Fig. 5 shows the pump assembly 22 with its lid 66 removed once a pair of screws 68A and 68B are removed.
  • the pump assembly 22 basically comprises a housing 69 (Figs. 2 and 5) made of high-impact ABS plastic; the pump 50 (Fig. 1 ) is made of a lightweight, durable material such as aluminum.
  • the PCB timer 42 can be seen positioned in the housing 69 and includes an 8-position DIP switch 70.
  • Discharge cycles and timing are controlled by the PCB timer 42 which is set by the end user via the DIP switch 70 for the desired discharge rates.
  • the PCB timer 42 is supported within the housing 69 by a pair of sleeves (only one 72 of which is visible in Fig. 5); a pair of screws 74A and 74B pass through the sleeves and releasably secure the PCB timer 42 to an internal portion (not shown) of the pump housing 69.
  • the power pack 48 comprises four AA batteries (not shown); the battery connector 76 can be seen in Fig. 5 as well as a top portion of the power pack 48.
  • the piston 26 is actuated by the single lobe piston cam 36 which is driven by the micro D.C. motor 44 (e.g., Douglas International, Inc. M752-F 6VDC motor or F3686VDC motor, 3000 rpm) via a 500: 1 gear reduction transmission assembly 46 (Figs. 7-8).
  • the micro D.C. motor 44 e.g., Douglas International, Inc. M752-F 6VDC motor or F3686VDC motor, 3000 rpm
  • One rotation of the piston cam 36 depresses the piston 26 to provide a 2 cc displacement of grease.
  • the piston 26 is reset by the spring 30 located at the end of the piston 26 inside the cylinder 28.
  • the position cam 38 is rotatably mounted on the same shaft 78 as the piston cam 36, shown in phantom.
  • the gear reduction transmission assembly 46 Figs. 7-8
  • the position cam 38 is used with the microswitch 40 to provide position input to the PCB timer 42.
  • Flow of grease (or, alternatively, oil as will be discussed later) is shown in Fig. 6.
  • the grease is discharged via displacement of the internal piston 26 utilizing the inlet check valve 32 and the outlet check valve 34 to provide one way flow.
  • a partial vacuum is created and due to the biasing means 58/piston 60 in the lubricant reservoir 24, a predetermined amount (e.g., V2 cc) of grease pushes the ball 90 of the inlet check valve 32 away from its seat 92 against the force of a valve spring 94.
  • This predetermined amount of grease then makes it way into the cylinder 28 in the direction of the arrows 96, at which time the inlet check valve closes 32 (i.e., the ball 90 is returned to its seat 92).
  • the piston cam 36 drives the piston 26 (as will be discussed below) against the force of the spring 30, the predetermined amount of grease is pushed out of the cylinder 28 and pushes the ball 98 of the outlet check valve 34 away from its seat 100 against the force of a valve spring 103, thereby dispensing the predetermined amount of grease, in the direction of the arrows 102, to the particular lube point(s).
  • the inlet check valve 32 prevents any back flow of the entered grease into the reservoir 24 during piston 26 compression and the outlet check valve 34 prevents any back flow of the dispensed grease during piston 26 extension. It should be noted that both the inlet check valve 32 and the outlet check valve 34 are both shown closed in Fig. 6; however, one skilled in the art would understand their alternating operation.
  • the PCB timer 42 energizes the DC motor 44, causing the gear reduction transmission assembly 46 to rotate in the directions shown in Fig. 7; the gear reduction transmission assembly 46 reduces the 3000 rpm output of the D.C. motor 44 such that the shaft 78 causes the piston cam 36 (shown in phantom) to begin rotating at about 5 rpm, as well as the position cam 38, in the direction shown by the arrow 79.
  • the tip 80 of the piston cam 36 sweeps against the piston 26 while a rider wheel 82 of the microswitch 40 rides along the periphery 83 of the position cam 38; when the rider wheel 82 rides along the periphery 83 of the position cam 38, the microswitch 40 is in an open condition.
  • the tip 80 arrives at the center point 84 of the piston 36, thereby defining the point at which the piston cam 36 has fully depressed the piston 26, the rider wheel 82 is just about to enter a depression 86 in the periphery of the position cam 38.
  • the rider wheel 82 enters the depression 86, thereby closing the microswitch 40; the microswitch 40 remains closed until the rider wheel 82 leaves the depression 86 and again returns to the periphery 83 of the position cam 38.
  • This closure of the microswitch 40 signals the PCB timer 42 to de-energize the motor 44 for 5 minutes. This results in the piston 36 being held in the fully depressed position, against the spring 30, for 5 minutes. This dwell time of 5 minutes helps to maintain the maximum pressure and ensure that the appropriate volume of lubricant is dispensed through the outlet check valve 34.
  • Fig. 9 is a timing diagram of the microswitch 40 and the motor 44 operation.
  • the PCB timer 42 then waits 5 minutes, then runs the motor 44 until the microswitch 40 is opened. Once the microswitch 40 is opened, the PCB timer 42 shuts off the motor 44.
  • the PCB timer 42 begins another lube cycle.
  • the lube cycle consists of operating the motor 44 until a microswitch 40 closure. The motor 44 is then turned off. The PCB timer 42 waits 5 minutes then turns the motor 44 on until the microswitch 44 opens. Once the microswitch 40 opens, the PCB timer 42 turns off the motor 44 and the motor 44 remains off until the "Off Time” is complete.
  • the "Off Time” should work as a frequency setting.
  • operation of the lube cycle should occur at the time selected. For example, if SW7 is in the ON position, then the PDP 20 performs a lube cycle every 6 hours, not 6 hours, 5 minutes.
  • the switch settings must be cumulative (i.e., add to create a total time), for example: if SW7 (6 hours) and SW3 (18 hours) are both in the ON position, then the "Off Time" selected is 24 hours.
  • the PCB timer 42 comprises the 8-position DIP switch 70, surface mount type, and a single sided circuit board 88 containing the necessary timing circuitry with all components being surface mount types; thus, the PCB timer 42 resides on the circuit board 88.
  • power to the D.C. motor 44 is controlled through the PCB timer 44 by turning ON/OFF the transistor Q1.
  • the D.C. motor 44, the power pack 48 and the microswitch 40 are electrically coupled to the printed circuit board 88 (e.g., via pads 89, only three of which are depicted in Fig. 5).
  • the PCB timer 44 has a 0 to 70 °C operating temperature and 95% relative humidity without condensation operation.
  • a transparent, disposable canister 104 (LUBESITE model G-5) containing an end-user provided oil (e.g., 150-8000 ssu viscosity) is used.
  • the oil reservoir 104 comprises a spring-loaded lid 106 for permitting an oil source (not shown) to fill the reservoir 104.
  • the oil reservoir 104 also comprises a threaded portion 108 for coupling to the threaded inlet port 64 of the pump assembly 22.
  • the PDP 20, as described above, provides for the generation of a maximum output pressure of approximately 400 psi at the outlet port 65.
  • the piston cam 36, the position cam 38, the microswitch 40, the PCB timer 42, the D.C. motor 44 and the gear reduction transmission assembly 46 form a positive control means for the flow rate of lubricant dispensing, i.e., there is a positive control of the lubricant being dispensed.
  • This is in contradistinction to the devices disclosed in U.S. Patent No. 5,509,501 (Damme) where dispensing of the lubricant is determined by the characteristics of the spring that drives its associated piston.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention a trait à une pompe lubrifiante à déplacement positif, automatique et autonome, à même de produire jusqu'à 400 psi en sortie pour fournir une quantité prédéfinie de graisse ou d'huile à un poste de lubrification et ce, dans une vaste plage de température. Cette pompe possède un cycle de lubrification réglable par l'utilisateur.
PCT/US1998/002931 1997-02-26 1998-02-11 Pompe a deplacement positif Ceased WO1998038453A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU61676/98A AU6167698A (en) 1997-02-26 1998-02-11 Positive displacement pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3832997P 1997-02-26 1997-02-26
US60/038,329 1997-02-26

Publications (1)

Publication Number Publication Date
WO1998038453A1 true WO1998038453A1 (fr) 1998-09-03

Family

ID=21899327

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/002931 Ceased WO1998038453A1 (fr) 1997-02-26 1998-02-11 Pompe a deplacement positif

Country Status (2)

Country Link
AU (1) AU6167698A (fr)
WO (1) WO1998038453A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005108849A3 (fr) * 2004-05-06 2006-02-23 Vogel Willi Ag Pompe de dosage, notamment pour lubrifiants, a commande de dilatation, et reservoir de lubrifiant pour ladite pompe de dosage et procede de lubrification

Citations (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767515A (en) * 1925-08-01 1930-06-24 Alemite Corp Lubricating system
US2011616A (en) 1932-11-25 1935-08-20 Automatic Lubrication Ltd Grease-cup
US2294673A (en) 1939-02-15 1942-09-01 Prete James V Lo Automatic lubricator
US2792911A (en) 1956-07-27 1957-05-21 Trabon Engineering Corp Divisional lubricant feeder
US2856024A (en) 1951-02-13 1958-10-14 Auto Research Corp Lubricant pump
US2857020A (en) 1956-08-01 1958-10-21 Isa E Otto Lubricating device
US2873003A (en) * 1956-06-20 1959-02-10 Sprio Werke Veb Lubricant distributing pump
US2899017A (en) 1959-02-18 1959-08-11 Plews Mfg Co Metering device for liquid lubricant
US2985256A (en) 1957-10-02 1961-05-23 Joseph E Hauser Grease cup
US3071208A (en) 1960-04-21 1963-01-01 Stewart Warner Corp Timer
US3182862A (en) * 1963-11-18 1965-05-11 Hosiery Equipment Ltd Lubricating apparatus
US3430731A (en) 1965-08-04 1969-03-04 Gebhard Satzinger Metallwarenf Lubricator
US3461990A (en) 1966-01-17 1969-08-19 Tecalemit Engineering Trailer lubrication systems
US3487892A (en) 1968-05-31 1970-01-06 William J Kiefer Positive displacement lubrication system
US3498413A (en) 1968-06-20 1970-03-03 Solotronics Corp Grease cups
US3739877A (en) 1971-11-09 1973-06-19 Ind Specialties Corp Grease cup
US3842939A (en) 1971-08-09 1974-10-22 Satzinger Gebhardt Metall Grease box for dispensing lubricant
US4006797A (en) 1975-05-15 1977-02-08 Caterpillar Tractor Co. Cam actuated lubrication pump
US4113061A (en) 1977-01-17 1978-09-12 Lockheed Corporation Automatic lubricator
US4527965A (en) 1984-05-29 1985-07-09 Ingersoll-Rand Company Lubrication means for cyclically discharging lubricant into a fluid working chamber
US4758100A (en) 1986-09-25 1988-07-19 Aginfor Ag Fur Industrielle Forschung Automatic lubricant metering apparatus
US4801051A (en) 1984-03-26 1989-01-31 Nordson Corporation Flow control device for a fluid dispensing apparatus
US4893697A (en) 1988-12-05 1990-01-16 Watts Fluidair Div. Of Robert Shaw Controls Company Injection lubricator with pulse counter
US5002156A (en) 1989-10-10 1991-03-26 Illinois Tool Works, Inc. Positive displacement pneumatic lubricator
US5178233A (en) 1991-05-10 1993-01-12 Nth, Inc. Continuous lubrication method and apparatus
WO1993023698A1 (fr) * 1992-05-10 1993-11-25 Eric Van Damme Dispositif d'amenee de doses de substances liquides ou visqueuses au point de consommation
US5271528A (en) * 1992-10-12 1993-12-21 Hornche Trading Co., Ltd. Automatic grease dispenser
US5303800A (en) 1992-09-23 1994-04-19 Kenneth Persson Closed lubrication system for wheel hub bearings
US5402913A (en) 1992-12-05 1995-04-04 Satzinger Gmbh & Co. Apparatus for the metered dispensing of a flowable medium, especially a lubricant
US5404966A (en) 1992-12-01 1995-04-11 Korea Lube-Tech Ltd. Lubrication apparatus
US5449050A (en) 1992-11-13 1995-09-12 Skf Mekan Ab Lubricant container

Patent Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767515A (en) * 1925-08-01 1930-06-24 Alemite Corp Lubricating system
US2011616A (en) 1932-11-25 1935-08-20 Automatic Lubrication Ltd Grease-cup
US2294673A (en) 1939-02-15 1942-09-01 Prete James V Lo Automatic lubricator
US2856024A (en) 1951-02-13 1958-10-14 Auto Research Corp Lubricant pump
US2873003A (en) * 1956-06-20 1959-02-10 Sprio Werke Veb Lubricant distributing pump
US2792911A (en) 1956-07-27 1957-05-21 Trabon Engineering Corp Divisional lubricant feeder
US2857020A (en) 1956-08-01 1958-10-21 Isa E Otto Lubricating device
US2985256A (en) 1957-10-02 1961-05-23 Joseph E Hauser Grease cup
US2899017A (en) 1959-02-18 1959-08-11 Plews Mfg Co Metering device for liquid lubricant
US3071208A (en) 1960-04-21 1963-01-01 Stewart Warner Corp Timer
US3182862A (en) * 1963-11-18 1965-05-11 Hosiery Equipment Ltd Lubricating apparatus
US3430731A (en) 1965-08-04 1969-03-04 Gebhard Satzinger Metallwarenf Lubricator
US3461990A (en) 1966-01-17 1969-08-19 Tecalemit Engineering Trailer lubrication systems
US3487892A (en) 1968-05-31 1970-01-06 William J Kiefer Positive displacement lubrication system
US3498413A (en) 1968-06-20 1970-03-03 Solotronics Corp Grease cups
US3842939A (en) 1971-08-09 1974-10-22 Satzinger Gebhardt Metall Grease box for dispensing lubricant
US3739877A (en) 1971-11-09 1973-06-19 Ind Specialties Corp Grease cup
US4006797A (en) 1975-05-15 1977-02-08 Caterpillar Tractor Co. Cam actuated lubrication pump
US4113061A (en) 1977-01-17 1978-09-12 Lockheed Corporation Automatic lubricator
US4801051A (en) 1984-03-26 1989-01-31 Nordson Corporation Flow control device for a fluid dispensing apparatus
US4527965A (en) 1984-05-29 1985-07-09 Ingersoll-Rand Company Lubrication means for cyclically discharging lubricant into a fluid working chamber
US4758100A (en) 1986-09-25 1988-07-19 Aginfor Ag Fur Industrielle Forschung Automatic lubricant metering apparatus
US4893697A (en) 1988-12-05 1990-01-16 Watts Fluidair Div. Of Robert Shaw Controls Company Injection lubricator with pulse counter
US5002156A (en) 1989-10-10 1991-03-26 Illinois Tool Works, Inc. Positive displacement pneumatic lubricator
US5178233A (en) 1991-05-10 1993-01-12 Nth, Inc. Continuous lubrication method and apparatus
WO1993023698A1 (fr) * 1992-05-10 1993-11-25 Eric Van Damme Dispositif d'amenee de doses de substances liquides ou visqueuses au point de consommation
US5509501A (en) 1992-05-10 1996-04-23 Damme; Eric V. Device for metered delivery of a liquid or viscous substance to a point of consumption
US5303800A (en) 1992-09-23 1994-04-19 Kenneth Persson Closed lubrication system for wheel hub bearings
US5271528A (en) * 1992-10-12 1993-12-21 Hornche Trading Co., Ltd. Automatic grease dispenser
US5449050A (en) 1992-11-13 1995-09-12 Skf Mekan Ab Lubricant container
US5404966A (en) 1992-12-01 1995-04-11 Korea Lube-Tech Ltd. Lubrication apparatus
US5402913A (en) 1992-12-05 1995-04-04 Satzinger Gmbh & Co. Apparatus for the metered dispensing of a flowable medium, especially a lubricant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005108849A3 (fr) * 2004-05-06 2006-02-23 Vogel Willi Ag Pompe de dosage, notamment pour lubrifiants, a commande de dilatation, et reservoir de lubrifiant pour ladite pompe de dosage et procede de lubrification

Also Published As

Publication number Publication date
AU6167698A (en) 1998-09-18

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