WO1998042937A3 - Valve lock and adapter - Google Patents

Valve lock and adapter Download PDF

Info

Publication number
WO1998042937A3
WO1998042937A3 PCT/GB1998/000877 GB9800877W WO9842937A3 WO 1998042937 A3 WO1998042937 A3 WO 1998042937A3 GB 9800877 W GB9800877 W GB 9800877W WO 9842937 A3 WO9842937 A3 WO 9842937A3
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
hub
valve
position indicator
latch
Prior art date
Application number
PCT/GB1998/000877
Other languages
French (fr)
Other versions
WO1998042937A2 (en
Inventor
Martin James Wadsworth
Stephen Leslie Foster
Original Assignee
Eja Engineering Limited
Martin James Wadsworth
Stephen Leslie Foster
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 Eja Engineering Limited, Martin James Wadsworth, Stephen Leslie Foster filed Critical Eja Engineering Limited
Priority to AU67395/98A priority Critical patent/AU6739598A/en
Priority to US09/381,772 priority patent/US6213148B1/en
Priority to EP98912615A priority patent/EP0968384A2/en
Publication of WO1998042937A2 publication Critical patent/WO1998042937A2/en
Publication of WO1998042937A3 publication Critical patent/WO1998042937A3/en
Priority to US09/730,874 priority patent/US6446666B1/en

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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

A valve lock for locking a valve spindle in a selected position corresponding to the valve being for example fully open or fully closed. The lock has a housing (1) which is mounted on the valve body and a hub (2) which engages and rotates with the valve spindle (10) relative to the housing. A latch (15, 16) is provided between the housing and the hub, the latch being actuatable by a key (7, 9) to assume a latched condition in which rotation of the hub relative to the housing is permitted in one direction but prevented in the other direction. A spindle position indicator (4, 5) is coupled by a transmission (3) to the hub so as to be displaced as a result of rotation of the spindle, thereby to indicate the spindle position relative to the valve body. The spindle position indicator prevents actuation of the latch by the key except when the spindle is in the selected position as represented by the spindle position indicator. The spindle position indicator is locked in the pre-determined orientation corresponding to the selected spindle position when the latch has been actuated by the key. The transmission incorporates a slip clutch which enables rotation of the hub in the one direction if the spindle position indicator is locked in the pre-determined orientation and sufficient torque is applied to the spindle engaging member to cause the clutch to slip. As a result the selected position can be reset simply by locking the spindle position indicator and then rotating the hub to a reset position.
PCT/GB1998/000877 1997-03-22 1998-03-23 Valve lock and adapter WO1998042937A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU67395/98A AU6739598A (en) 1997-03-22 1998-03-23 Valve lock and adapter
US09/381,772 US6213148B1 (en) 1998-03-23 1998-03-23 Valve lock and adapter
EP98912615A EP0968384A2 (en) 1997-03-22 1998-03-23 Valve lock and adapter
US09/730,874 US6446666B1 (en) 1997-03-22 2001-02-21 Valve lock and adapter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9706015.6A GB9706015D0 (en) 1997-03-22 1997-03-22 Valve lock and adapter
GB9706015.6 1997-03-22

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/730,874 Continuation US6446666B1 (en) 1997-03-22 2001-02-21 Valve lock and adapter

Publications (2)

Publication Number Publication Date
WO1998042937A2 WO1998042937A2 (en) 1998-10-01
WO1998042937A3 true WO1998042937A3 (en) 1998-12-23

Family

ID=10809728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/000877 WO1998042937A2 (en) 1997-03-22 1998-03-23 Valve lock and adapter

Country Status (4)

Country Link
EP (1) EP0968384A2 (en)
AU (1) AU6739598A (en)
GB (1) GB9706015D0 (en)
WO (1) WO1998042937A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20110067A1 (en) * 2011-04-29 2012-10-30 Emmeti Spa COMMAND DEVICE FOR AN INTERCEPTION OF A FLUID, AND INTERCEPTION ORGAN
CN113790279B (en) * 2021-09-10 2022-05-06 绍兴柯桥春生水务科技有限公司 Multifunctional fire valve with anti-theft function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2438005A1 (en) * 1974-08-07 1976-02-19 Stahl Armaturen Persta Gmbh Kg Gate valve locking device - locates in top part of two part valve shaft coupling for positive operation
GB2168131A (en) * 1985-01-15 1986-06-11 Alan Elgar Herbert Ellis Lockable drive mechanism
EP0197660A1 (en) * 1985-04-03 1986-10-15 Proven Engineering Products Limited Lock Mechanism
GB2292207A (en) * 1991-03-18 1996-02-14 Sigma Controls Ltd Locking mechanism for a valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2438005A1 (en) * 1974-08-07 1976-02-19 Stahl Armaturen Persta Gmbh Kg Gate valve locking device - locates in top part of two part valve shaft coupling for positive operation
GB2168131A (en) * 1985-01-15 1986-06-11 Alan Elgar Herbert Ellis Lockable drive mechanism
EP0197660A1 (en) * 1985-04-03 1986-10-15 Proven Engineering Products Limited Lock Mechanism
GB2292207A (en) * 1991-03-18 1996-02-14 Sigma Controls Ltd Locking mechanism for a valve

Also Published As

Publication number Publication date
AU6739598A (en) 1998-10-20
EP0968384A2 (en) 2000-01-05
GB9706015D0 (en) 1997-05-07
WO1998042937A2 (en) 1998-10-01

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