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WO1985003754A1 - Poignee de vanne reglable limitant la torsion - Google Patents

Poignee de vanne reglable limitant la torsion Download PDF

Info

Publication number
WO1985003754A1
WO1985003754A1 PCT/US1985/000250 US8500250W WO8503754A1 WO 1985003754 A1 WO1985003754 A1 WO 1985003754A1 US 8500250 W US8500250 W US 8500250W WO 8503754 A1 WO8503754 A1 WO 8503754A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
handle
valve
rotation
torque
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/US1985/000250
Other languages
English (en)
Inventor
William J. Williams
Richard E. Purkey
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of WO1985003754A1 publication Critical patent/WO1985003754A1/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
    • F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers
    • F16D7/08—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving axially between engagement and disengagement
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

Definitions

  • This invention relates generally to valve handles and more particularly to torque limiting valve handles.
  • Torque limiting valve handles are in wide use in petrochemical or other industries wherein hazardous and/or combustable materials are involved.
  • the valve handles are equipped with means for limiting the torque that can be manually applied through the valve stem to prevent damage to the valve and possible accidents involving the hazar ⁇ dous materials.
  • U.S. Patent No. 3,441,115 which issued to Gunther, shows such a torque limiting valve handle having a handle housing threadedly engaged with a cap portion.
  • a ball retainer is adapted for mounting on a valve stem and is constrained between the housing and cap portion.
  • a plurality of balls are carried within longitudinal openings in the ball retainer and urged by a stack of Belleville washers into engagement with multiple depressions in an inner surface of the handle housing.
  • the valve handle will rotate as a unit when a torque is applied below a predetermined level. When a torque is applied above the predetermined level, such as when the valve is in a fully open or closed position, the force of the Belleville washers is overcome and the balls are
  • SUBSTITUTE SHEET forced out of engagement with the openings. This allows the handle housing and cap portion to rotate independently of the ball retainer and valve stem and prevents excessive torque from being applied to the valve. Adjustment of the force exerted by the Belleville washers is provided by relative rotation of the handle housing with respect to the cap portion, and secured by two externally accessible set screws.
  • Figure 1A is a side elevational view of the adaptor of the valve handle of this invention.
  • SUBSTITUTE SHEET Figure IB is a top view of the adaptor of the" valve handle of this invention.
  • Figure 1C is a bottom view of the adaptor of the valve handle of this invention.
  • Figure 2A is a top view of the housing of the valve handle of this invention.
  • Figure 2B is an upright cross sectional view of the housing of the valve handle of this invention.
  • Figure 2C is a bottom view of the housing of the valve handle of this invention.
  • FIG. 3 is an upright vertical cross-sectional view of the valve handle of this invention.
  • Figure 4 is a horizontal cross-sectional view of the valve handle of this invention along plane 4-4 of Fig. 3;
  • FIG. 5 is a bottom view of the valve handle of this invention.
  • the reference numeral 10 generally indicates the valve handle of this invention, which includes adaptor 12, shown in more detail in Figures 1A, IB and 1C and housing 24 shown in more detail in Figs. 2A, 2B and 2C.
  • Adaptor 12 includes concentric opening 14 for insertion of a valve stem (not shown) of a valve and comprises first section 18 nearest the valve (not shown) and cylindrical second section 22 of larger diameter forming both flat end surface 32 facing away from the valve stem and shoulder 23 at the juncture with first section 18.
  • Set screw 20 is engaged within threaded opening 16 formed in first section 18 so as to secure the adaptor to the valve stem when inserted within opening 14.
  • S U B STITUTE SHEET centered around the axis of rotation of the housing, for receiving adaptor 12 so that flat end surface 32 is adjacent surface 30 of the cavity.
  • back plate 34 is adjacent shoulder 23 of the adaptor and includes rectangular opening 36 in surrounding relation to first portion 18 of the adaptor.
  • Snap ring 28 is positioned within groove 40 of the housing to secure the back plate and the adaptor within cavity 28.
  • Slot 42 is provided in the housing to permit external access to set screw 20 in order to tighten or loosen the set screw and secure or remove the valve handle to the valve -stem.
  • Adaptor 12 includes longitudinal openings 44, only one of which is shown, extending from surface 32 through second section 22.
  • the openings are parallel to the longitudinal axis of rotation of the adaptor in valve stem but are radially offset therefrom.
  • Ball element 48 is carried within the longitudinal opening and is urged along direction 62 towards depressions 60 in surface 30 by a spring or like member 50 which contacts the ball at one end and a set screw 52 engaged within threaded portion 46 of opening 44, at the other end. Adjustment of the force exerted by the spring is enabled by movement of set screw 52 within the opening. If more than one longitudinal opening, spring and ball is provided with the valve handle, the force exerted on each ball is independently adjustable to enable greater control over the composite torque required to disengage the housing from the adaptor.
  • Adaptor 12 also includes one or more openings 54 extending from surface 30 but only partially through second section 22. Within the opening 54 is carried a similar ball element 56 urged outwardly along direction 62 by a spring 58 contacting the ball and the end of the opening. The force exerted by the spring 54 is not adjustable in this case.
  • the illustrated embodiment of the invention includes one or more ratcheting members 64 slidingly carried within chambers 66 formed in the adaptor transverse to the axis of rotation but offset " therefrom.
  • Spring 68 contained within chamber 66 urges the latching member 64 outwardly along direction 63 towards the interior surface of the cavity 28 of the housing, which includes a plurality of longitudinal grooves 70.
  • Latching member 64 includes a first surface 72 obliquly inclined with respect to direction 63 and a second surface 74 parallel thereto.
  • Torque limited valve handles are frequently used in environments including hazardous or co bustable mater ⁇ ials which frequently are also corrosive.
  • the housing is constructed of a material such as fiberglass and the adaptor and the remainder of the components are constructed of stainless steel, which are unaffected by corrosive substances.
  • the positions of the various set screws within the openings 44 are positioned in accordance with the spring constants of each spring to establish a predetermined level of torque necessary to disengage the housing from the adaptor.
  • the components of the valve handle are assembled as shown in Fig 3-5.
  • the valve stem (not shown) is inserted into opening 14 of the assembled handle, whereupon set screw 20 is tightened by a suitable tool (not shown) to secure the handle to the valve.
  • the force exerted as the valve handle is rotated in direction 76 little resistance is met, therefore, the housing and adaptor will move in unison because of the engagement of the ball elements 48 and 56 with the depression 60.
  • the housing and adaptor will again move in unison until the valve has reached the opposite point, either fully opened or fully closed, at which point additional resistance will be met.
  • the interaction between the second surface 74 and the groove 70 will prevent the housing from rotating independently of the adaptor even when a torque is applied sufficient to disengage the ball elements from the depressions.
  • certain of the springs may be provided with different spring constants to provide greater control over the composite torque necessary to disengage the housing from the adaptor.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Taps Or Cocks (AREA)

Abstract

Poignée de vanne limitant la torsion (10), possédant une ou plusieurs billes (48) armées par ressort et réglables indépendamment, poussées de manière à entrer en contact avec des cavités (60) formées dans la surface intérieure d'un boîtier (24) conçu pour un engagement manuel extérieur. Le réglage de la limite de torsion de la poignée de vanne par une vis de pression (52) est protégé d'une altération ou d'une modification inadvertante par une personne non autorisée au moyen d'une contre-plaque (34) ne pouvant être retirée que lorsque toute la poignée de vanne est démontée.
PCT/US1985/000250 1984-02-17 1985-02-19 Poignee de vanne reglable limitant la torsion Ceased WO1985003754A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58106884A 1984-02-17 1984-02-17
US581,068 1995-12-29

Publications (1)

Publication Number Publication Date
WO1985003754A1 true WO1985003754A1 (fr) 1985-08-29

Family

ID=24323765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1985/000250 Ceased WO1985003754A1 (fr) 1984-02-17 1985-02-19 Poignee de vanne reglable limitant la torsion

Country Status (3)

Country Link
EP (1) EP0172886A4 (fr)
AU (1) AU3998185A (fr)
WO (1) WO1985003754A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706972A1 (en) * 1993-06-25 1994-12-30 Ferrara Vincent Device for limiting the force or torque involved in operating valves
GB2291694A (en) * 1994-07-25 1996-01-31 Polypipe Plc Apparatus for limiting torque in a valve assembly
EP0708285A1 (fr) * 1994-06-29 1996-04-24 Predrag Pesovic Soupape sanitaire
WO1998013678A1 (fr) * 1996-09-26 1998-04-02 Johannes Buschmann Applicateur a limiteur de couple pour capteur pulsoxymetrique
EP3279533A1 (fr) * 2016-08-01 2018-02-07 Linde Aktiengesellschaft Système de commande pour trajet de gaz sous pression

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1075311A (en) * 1911-07-14 1913-10-07 B F Perkins And Son Inc Pawl-and-ratchet mechanism.
US2855914A (en) * 1953-08-19 1958-10-14 William H Himes Injection pump drives
US2881602A (en) * 1954-03-29 1959-04-14 J A Zurn Mfg Co Operating mechanism for a wall hydrant
US3053498A (en) * 1960-12-12 1962-09-11 Pacific Valves Inc Clutch hand wheel for a soft seat valve
US3441115A (en) * 1967-11-20 1969-04-29 Duriron Co Valve handle with torque limit adjustment means
US3910308A (en) * 1973-11-08 1975-10-07 Phillip R Mack Signal handle for valves

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1534701A (en) * 1924-04-10 1925-04-21 Gray Tom Frederick Valve
FR1109246A (fr) * 1954-07-21 1956-01-24 Saint Gobain Perfectionnement aux vannes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1075311A (en) * 1911-07-14 1913-10-07 B F Perkins And Son Inc Pawl-and-ratchet mechanism.
US2855914A (en) * 1953-08-19 1958-10-14 William H Himes Injection pump drives
US2881602A (en) * 1954-03-29 1959-04-14 J A Zurn Mfg Co Operating mechanism for a wall hydrant
US3053498A (en) * 1960-12-12 1962-09-11 Pacific Valves Inc Clutch hand wheel for a soft seat valve
US3441115A (en) * 1967-11-20 1969-04-29 Duriron Co Valve handle with torque limit adjustment means
US3910308A (en) * 1973-11-08 1975-10-07 Phillip R Mack Signal handle for valves

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0172886A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706972A1 (en) * 1993-06-25 1994-12-30 Ferrara Vincent Device for limiting the force or torque involved in operating valves
EP0708285A1 (fr) * 1994-06-29 1996-04-24 Predrag Pesovic Soupape sanitaire
GB2291694A (en) * 1994-07-25 1996-01-31 Polypipe Plc Apparatus for limiting torque in a valve assembly
GB2291694B (en) * 1994-07-25 1998-08-05 Polypipe Plc Apparatus for limiting torque in a valve assembly
WO1998013678A1 (fr) * 1996-09-26 1998-04-02 Johannes Buschmann Applicateur a limiteur de couple pour capteur pulsoxymetrique
EP3279533A1 (fr) * 2016-08-01 2018-02-07 Linde Aktiengesellschaft Système de commande pour trajet de gaz sous pression

Also Published As

Publication number Publication date
EP0172886A4 (fr) 1987-09-10
EP0172886A1 (fr) 1986-03-05
AU3998185A (en) 1985-09-10

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