US2963895A - Dual locking device - Google Patents

Dual locking device Download PDF

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Publication number
US2963895A
US2963895A US740432A US74043258A US2963895A US 2963895 A US2963895 A US 2963895A US 740432 A US740432 A US 740432A US 74043258 A US74043258 A US 74043258A US 2963895 A US2963895 A US 2963895A
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United States
Prior art keywords
guide
slides
openings
locking
locked
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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.)
Expired - Lifetime
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US740432A
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Ralph R Thomas
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Ralph R Thomas
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Priority to US740432A priority Critical patent/US2963895A/en
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B67/00Padlocks; Details thereof
    • E05B67/38Auxiliary or protective devices
    • E05B67/383Staples or the like for padlocks; Lock slings; Arrangements on locks to cooperate with padlocks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/34Portable
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/40Portable
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/40Portable
    • Y10T70/402Fetters
    • Y10T70/409Shackles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/50Special application

Description

R. R. THOMAS 2,963,895
DUAL LOCKING DEVICE Filed June 6, 1958 Dec. 13, 1960 /Z Z0 1:: L2
Ralph .R'Thomc s INVENTOR.
United States Patent DUAL LOCKING DEVICE Ralph R. Thomas, '3110 N. 19th, Tacoma, Wash.
Filed June 6, 1958, Ser. No. 740,432
'4 Claims. (Cl. 70-14) This invention rel-ates to locking devices for locking together two relatively movable objects by means of two padlocks, the objects being released by unlocking either one of the padlocks.
There are numerous padlocked installations such as fence gates, storerooms, structures housing water and light meters and the like which are to be made accessible to two or more persons one of whom, usually the proprietor, may wish to use a master key which he does not wish to release to the other person. Accordingly he may wish to employ a dual locking device which will accommodate two padlocks, one of which may be opened with his master key and the other by a special key provided for the purpose. Unlocking either padlock, however, affords access to the locked installation.
It is the general object of the present invention to provide a dual locking device which accomplishes the foregoing purpose.
The manner in which the above and other objects of this invention are accomplished will be apparent from the accompanying specification and claims considered together with the drawings wherein like numerals of reference indicate like parts and wherein:
Fig. 1 is a plan view of the herein described device in locked position;
Fig. 2 is a view in side elevation of the herein described locking device;
Fig. 3 is a plan view of the herein described locking device in opened position; and
Fig. 4 is a detail sectional view taken along line 4-4 of Fig. 3.
The herein described locking device, generally considered, comprises a guide having a pair of spaced openings transversely therethrough and a pair of slides adapted to work in the guide and each having therethrough a transverse opening. Stop means interengage the guide and slides, determining the movement of the slides between inserted positions wherein the openings therein register with the corresponding openings in the guide, and withdrawn positions wherein the openings in the guide and slides are out of registration with each other. A pair of arms are afiixed one to each of the slides in such a manner that their free ends are substantially in meeting relationship with each other when the slides are in inserted position, thus joining two relatively movable objects which are to be locked together.
Considering the foregoing in greater detail and with particular reference to the drawings.
The locking device of my invention includes a guide or body portion which in the illustrated embodiment is made from a single, reversely bent piece of metal. The guide is formed with a pair of registering, longitudinallyextending slots 12 each of which may terminate in enlarged transverse openings 14.
Slides or latches 16, each formed with a transverse opening 18, are dimensioned to slide in the guide end to end. Openings 18 are so positioned that when the slides are fully inserted in the guide, they register with the corresponding openings 14 through the latter.
Stop means are provided for interengaging the slide and guide and limiting the relative movement of the same between an advanced position wherein the slide is fully inserted in the guide with the openings in registration as set forth above, and a withdrawn position wherein the slides are substantially withdrawn from the guide so that the openings no longer register.
In the illustrated form of the invention the stop means comprise abutment pins 20 extending transversely through the inner terminal portions of the slides and dimensioned to work in slots 12. However, upon withdrawal of the slides, they abut against the end walls of openings 14 and prevent the complete removal of the slides from the guide.
One end of each of a pair of arms 22, 24 is afiixed to the outer terminal portion of a respective one of slides 16. These arms are formed in such a manner that their outer ends are substantially in meeting relationship to each other when the slides are fully inserted in the guide so that they may be used to join two relatively movable objects which are to be locked together.
Preferably one of the arms, e.g. arm 22, mounts a sleeve 26 the opening in which is aligned with the terminal portion of [the meeting arm 24 and which is adapted to receive the same when the device is in locked position.
Operation In use, arms 22, 24 are placed through or around the two objects to be locked together, for example, through a padlock hasp, with the end of arm 24 seated in sleeve 26 to prevent prying the arms apart. Padlocks 28, 30 then are inserted through registering openings 14, 18 on each side of the device and locked so that the apparatus assumes the position of Fig. l.
Padlocks 28, 30 may be operable by the same or different keys. Thus if the holder of the key fitting padlock 30 wishes to open the device, he first opens padlock 30, removes it from the openings in the device and slips slide 16 out of guide 10 until abutment pin 20 engages the outer terminal portion of slot 12. This separates the formerly meeting ends of arms 22, 24 so that the device assumes the position of Fig. 3 in which it may be disengaged from the objects which it previously had locked together, releasing them for relative movement.
It is to be understood that the form of the invention, herewith shown and described, is to be taken as a preferred embodiment of the same and that various changes in the shape, size and arrangement of parts may be made without departing from the spirit of the invention or the scope of the subjoined claims.
Having thus described my invention, I claim:
1. A dual locking device comprising a guide having a pair of spaced openings transversely therethrough, a pair of slides adapted to work individually in the guide and each having therethrough a transverse opening, stop means interengaging the guide and slides for determining the movement of the slides between inserted locked positions wherein the openings therein register with the corresponding openings in the guide to accommodate a pair of padlocks, and withdrawn released positions wherein the openings are out of registration with each other, and a pair of arms afiixed one to each of the slides with their free ends substantially in meeting relationship with each other in the locked position for joining together two objects which are to be locked together and with their free ends separated in the released position of either slide for disengaging the objects.
2. The locking device of claim 1 wherein the stop means comprises abutment means on each slide for contacting the guide when the slides are in their withdrawn positions.
3. The locking device of claim 1 wherein the guide comprises a pair of interconnected plates having parallel, registering, longitudinally-arranged slots therein termi- 5 nating at the openings in the guide, and wherein the stops means comprise abutment pins dimensioned to work in the slots.
4. The locking device of claim 3 wherein the plates forming the guide comprise a reversely bent metal sheet. 10
References Cried in the file of this patent UNITED STATES PATENTS Taylor Apr. 20, 1915 Sturr Mar. 6, 1917 Slade Sept. 25, 1934 FOREIGN PATENTS Germany Mar. 16, 1923
US740432A 1958-06-06 1958-06-06 Dual locking device Expired - Lifetime US2963895A (en)

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667259A (en) * 1970-08-05 1972-06-06 Eng Dev Co Inc Safety lock
US3774333A (en) * 1970-12-21 1973-11-27 G Reynolds Safety lock device for a bolt action firearm
US3889497A (en) * 1973-07-03 1975-06-17 Herman L Tuttle Multiple-lock securing system
US3906760A (en) * 1974-07-25 1975-09-23 Jr Bill T Parker Multiple access lock
US3926018A (en) * 1974-02-11 1975-12-16 Donald F Joersz Locking device
US4085599A (en) * 1977-05-23 1978-04-25 Square D Company Padlock adapter assembly
US4248399A (en) * 1978-11-09 1981-02-03 Gipson Donald G Hook unit for truck tire chains
US4694667A (en) * 1985-07-26 1987-09-22 Hodge Allan M Permanent padlock-chain assembly
US4697443A (en) * 1987-02-03 1987-10-06 Hillin Wilbert L Multi-lock security device
US4732018A (en) * 1986-11-06 1988-03-22 Crosby Lyndon A Air coupling locking device
US4878366A (en) * 1988-10-27 1989-11-07 Cox Robert W Locking device for a vehicle wheel and tire
US4986095A (en) * 1990-08-27 1991-01-22 Chou Chao Jen Retractable lock structure
US5503212A (en) * 1995-02-21 1996-04-02 Lin; Zen C. Solar shield device for a vehicle
US5544505A (en) * 1992-04-28 1996-08-13 John Dalwyn McIntosh Lock bracket
US5582042A (en) * 1995-03-03 1996-12-10 Federal-Hoffman, Inc. Safety double lock
US5743116A (en) * 1997-06-03 1998-04-28 Suster; Thomas Mitchel Multi-lock hasp
US6032989A (en) * 1998-05-18 2000-03-07 Dewalch; Norman Binz Meter locking ring for use with multiple locks
US6559382B2 (en) * 2001-05-15 2003-05-06 Lucent Technologies Inc. Fiber optic guides with integrated security
US20040207215A1 (en) * 2003-04-21 2004-10-21 Roger Heyder Portable crank window securing device
US20040244443A1 (en) * 2003-06-09 2004-12-09 Martin John Calhoun Rotary security system
US20050028569A1 (en) * 2003-08-07 2005-02-10 Turek Mark E. Lockout safety hasp
US6880282B1 (en) 2001-06-26 2005-04-19 The Marlin Firearms Company Lockable firearm safety device
US20080264116A1 (en) * 2007-04-27 2008-10-30 Mcneil Randy L Multiple padlock lock system
US20100180646A1 (en) * 2009-01-21 2010-07-22 Mazingo James M Dual lock box
US20110283753A1 (en) * 2010-05-18 2011-11-24 Assa Abloy Australia Pty Limited Safety lockout hasp
US8640507B1 (en) * 2011-09-09 2014-02-04 Jay S. Derman Horizontal shackle for lock system and method
US9032764B2 (en) 2012-06-25 2015-05-19 Assa Abloy Australia Pty Limited Safety lockout hasp with cable
US9273490B1 (en) * 2014-09-12 2016-03-01 Randy McNeil Multiple padlock locking device
US10221594B2 (en) * 2015-02-17 2019-03-05 Dorel Juvenile Group, Inc. Cabinet lock
US10415272B1 (en) * 2018-10-30 2019-09-17 Terry P. Tuttle Multiple-lock securing system
US10544605B2 (en) * 2017-05-19 2020-01-28 Douglas A. Yates Sliding lockable housing with supplemental openings
US10778285B2 (en) 2017-01-04 2020-09-15 Go Lock Technology, Inc. Cable with integral sensing elements for fault detection

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1136735A (en) * 1914-12-26 1915-04-20 Charles G Taylor Lock.
US1218013A (en) * 1915-05-28 1917-03-06 Charles W Sturr Automobile-lock.
DE371514C (en) * 1923-03-16 Ernst Ritter Device for locking doors
US1974547A (en) * 1930-05-26 1934-09-25 Andis Clipper Co Key sheath

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE371514C (en) * 1923-03-16 Ernst Ritter Device for locking doors
US1136735A (en) * 1914-12-26 1915-04-20 Charles G Taylor Lock.
US1218013A (en) * 1915-05-28 1917-03-06 Charles W Sturr Automobile-lock.
US1974547A (en) * 1930-05-26 1934-09-25 Andis Clipper Co Key sheath

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667259A (en) * 1970-08-05 1972-06-06 Eng Dev Co Inc Safety lock
US3774333A (en) * 1970-12-21 1973-11-27 G Reynolds Safety lock device for a bolt action firearm
US3889497A (en) * 1973-07-03 1975-06-17 Herman L Tuttle Multiple-lock securing system
US3926018A (en) * 1974-02-11 1975-12-16 Donald F Joersz Locking device
US3906760A (en) * 1974-07-25 1975-09-23 Jr Bill T Parker Multiple access lock
US4085599A (en) * 1977-05-23 1978-04-25 Square D Company Padlock adapter assembly
US4248399A (en) * 1978-11-09 1981-02-03 Gipson Donald G Hook unit for truck tire chains
US4694667A (en) * 1985-07-26 1987-09-22 Hodge Allan M Permanent padlock-chain assembly
US4732018A (en) * 1986-11-06 1988-03-22 Crosby Lyndon A Air coupling locking device
US4697443A (en) * 1987-02-03 1987-10-06 Hillin Wilbert L Multi-lock security device
US4878366A (en) * 1988-10-27 1989-11-07 Cox Robert W Locking device for a vehicle wheel and tire
US4986095A (en) * 1990-08-27 1991-01-22 Chou Chao Jen Retractable lock structure
US5544505A (en) * 1992-04-28 1996-08-13 John Dalwyn McIntosh Lock bracket
US5503212A (en) * 1995-02-21 1996-04-02 Lin; Zen C. Solar shield device for a vehicle
US5582042A (en) * 1995-03-03 1996-12-10 Federal-Hoffman, Inc. Safety double lock
US5743116A (en) * 1997-06-03 1998-04-28 Suster; Thomas Mitchel Multi-lock hasp
US6032989A (en) * 1998-05-18 2000-03-07 Dewalch; Norman Binz Meter locking ring for use with multiple locks
US6367851B1 (en) * 1998-05-18 2002-04-09 Dewalch Technologies, Inc. One piece meter locking ring for use with multiple locks
US6559382B2 (en) * 2001-05-15 2003-05-06 Lucent Technologies Inc. Fiber optic guides with integrated security
US6880282B1 (en) 2001-06-26 2005-04-19 The Marlin Firearms Company Lockable firearm safety device
US7000955B2 (en) * 2003-04-21 2006-02-21 Roger Heyder Portable casement window securing device
US20040207215A1 (en) * 2003-04-21 2004-10-21 Roger Heyder Portable crank window securing device
US20040244443A1 (en) * 2003-06-09 2004-12-09 Martin John Calhoun Rotary security system
US7000440B2 (en) * 2003-06-09 2006-02-21 John Calhoun Martin Rotary security system
US20050028569A1 (en) * 2003-08-07 2005-02-10 Turek Mark E. Lockout safety hasp
US20080264116A1 (en) * 2007-04-27 2008-10-30 Mcneil Randy L Multiple padlock lock system
US7503194B2 (en) 2007-04-27 2009-03-17 Mcneil Randy L Multiple padlock lock system
US20100180646A1 (en) * 2009-01-21 2010-07-22 Mazingo James M Dual lock box
US8353182B2 (en) * 2010-05-18 2013-01-15 Assa Abloy Australia Pty Limited Safety lockout hasp
US20110283753A1 (en) * 2010-05-18 2011-11-24 Assa Abloy Australia Pty Limited Safety lockout hasp
US8640507B1 (en) * 2011-09-09 2014-02-04 Jay S. Derman Horizontal shackle for lock system and method
US9032764B2 (en) 2012-06-25 2015-05-19 Assa Abloy Australia Pty Limited Safety lockout hasp with cable
US9273490B1 (en) * 2014-09-12 2016-03-01 Randy McNeil Multiple padlock locking device
US10221594B2 (en) * 2015-02-17 2019-03-05 Dorel Juvenile Group, Inc. Cabinet lock
US10778285B2 (en) 2017-01-04 2020-09-15 Go Lock Technology, Inc. Cable with integral sensing elements for fault detection
US10544605B2 (en) * 2017-05-19 2020-01-28 Douglas A. Yates Sliding lockable housing with supplemental openings
US10415272B1 (en) * 2018-10-30 2019-09-17 Terry P. Tuttle Multiple-lock securing system

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