GB2411692A - Improvements in or relating to locks - Google Patents

Improvements in or relating to locks Download PDF

Info

Publication number
GB2411692A
GB2411692A GB0509921A GB0509921A GB2411692A GB 2411692 A GB2411692 A GB 2411692A GB 0509921 A GB0509921 A GB 0509921A GB 0509921 A GB0509921 A GB 0509921A GB 2411692 A GB2411692 A GB 2411692A
Authority
GB
United Kingdom
Prior art keywords
closure
locks
relating
lock
unlock
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.)
Granted
Application number
GB0509921A
Other versions
GB2411692B (en
GB0509921D0 (en
Inventor
Geoffrey David Miles
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
Priority claimed from GB0223950A external-priority patent/GB0223950D0/en
Priority claimed from GB0317426A external-priority patent/GB0317426D0/en
Application filed by Individual filed Critical Individual
Publication of GB0509921D0 publication Critical patent/GB0509921D0/en
Publication of GB2411692A publication Critical patent/GB2411692A/en
Application granted granted Critical
Publication of GB2411692B publication Critical patent/GB2411692B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B11/00—Devices preventing keys from being removed from the lock ; Devices preventing falling or pushing out of keys
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0065—Operating modes; Transformable to different operating modes
    • E05B63/0078—Operating modes; Transformable to different operating modes allowing opening with key from outside, even with key inserted from inside
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/04—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A lock (1) combining security with safety has cylinders (2,3) operable by keys (4,5) respectively from opposite sides of a closure such as a final exit door from a building. The key (4) for operating the lock (1) from the inside is arranged to be held captive when locking the closure from the inside so as to be available to unlock the closure in an emergency.

Description

GB 2411692 A continuation (74) Agent and/or Address for Service: Barker
Brettell 138 Hagley Road, Edgbaston, BIRMINGHAM, B16 9PW, United Kingdom
GB0509921A 2002-10-15 2003-10-15 Improvements in or relating to locks Expired - Lifetime GB2411692B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0223950A GB0223950D0 (en) 2002-10-15 2002-10-15 Improvements in or relating to locks
GB0317426A GB0317426D0 (en) 2003-07-25 2003-07-25 Improvements in or relating to locks
PCT/GB2003/004453 WO2004035970A1 (en) 2002-10-15 2003-10-15 Improvements in or relating to locks

Publications (3)

Publication Number Publication Date
GB0509921D0 GB0509921D0 (en) 2005-06-22
GB2411692A true GB2411692A (en) 2005-09-07
GB2411692B GB2411692B (en) 2006-10-04

Family

ID=32109241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0509921A Expired - Lifetime GB2411692B (en) 2002-10-15 2003-10-15 Improvements in or relating to locks

Country Status (3)

Country Link
AU (1) AU2003271955A1 (en)
GB (1) GB2411692B (en)
WO (1) WO2004035970A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068510A (en) * 1976-06-28 1978-01-17 Schlage Lock Company Double cylinder safety lock
US4109496A (en) * 1977-12-20 1978-08-29 Norris Industries Trapped key mechanism
GB2045855A (en) * 1979-03-24 1980-11-05 Ellis A E H A key holder
GB2278391A (en) * 1993-05-26 1994-11-30 Castell Safety Int Plural key system for lockable emergency exit doors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068510A (en) * 1976-06-28 1978-01-17 Schlage Lock Company Double cylinder safety lock
US4109496A (en) * 1977-12-20 1978-08-29 Norris Industries Trapped key mechanism
GB2045855A (en) * 1979-03-24 1980-11-05 Ellis A E H A key holder
GB2278391A (en) * 1993-05-26 1994-11-30 Castell Safety Int Plural key system for lockable emergency exit doors

Also Published As

Publication number Publication date
GB2411692B (en) 2006-10-04
GB0509921D0 (en) 2005-06-22
WO2004035970A1 (en) 2004-04-29
AU2003271955A1 (en) 2004-05-04

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20231014