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Publication numberUS3751948 A
Publication typeGrant
Publication dateAug 14, 1973
Filing dateOct 6, 1971
Priority dateOct 6, 1971
Publication numberUS 3751948 A, US 3751948A, US-A-3751948, US3751948 A, US3751948A
InventorsKlein S
Original AssigneeKlein S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Protective lock casing
US 3751948 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent 1191 Klein [451 Aug. 14, 1973 PROTECTIVE LOCK CASING [76] Inventor: Sheldon Klein, 333 E. 55th St., New

York, NY.

[22] Filed: Oct. 6, 1971 [21] App]. No.: 187,092

[52] US. Cl. 70/55, 70/417 [51] Int. Cl E05b 67/04 [58] Field of Search 70/8, 20, 31, 51,

70/52, 54, 55, 56, 417, DIG. 56

[56] 1 References Cited UNITED STATES PATENTS 6/1901 Jarvis ..70/56 3/1917 Bowers ..70/56 3/1928 Junkunc 150/52 R 3/1971 Berry et a1. 70/52 Primary Examiner-Albert G. Craig, Jr. Attorney -Kenneth S. Goldfarb 5 7] ABSTRACT A protective casing for a lock having a body provided with a barrel and a shackle. The casing includes a sheath for surrounding the lock and for surrounding the shackle on three sides, so as to prevent access of cutters, snippers, and the like for breaking the shackle. Suitable flanges are provided on the sheath for protecting against unauthorized removal of the barrel. The lock is fixed to the sheath.

2 Claims, 4 Drawing Figures Pmmgu Am; 1 4mm 751 ,94

INVENTOR. $051. 001/ MI/A BY U A A T T 0 N E Y 1 PROTECTIVE LOCK CASING This invention relates to a protective lock casing and, more particularly, to a device for safeguarding a padlock or the like against breaking and tampering to prevent illegal entry.

Various types of padlocks, combination locks, and the like have been produced for safeguarding property, by providing a lock for gates, doors, and other types of closures. These padlocks generally provide protection against unauthorized entry except when burglars or thieves with specialized tools desire to gain entry. These tools generally include cutters for breaking the shackle, or tools for removing the barrel from the lock and thereby permitting opening of the shackle.

The present invention provides means for preventing access to the shackle by snippets or cutters used for such purposes and which also safeguards against re moval of the locking barrel while permitting operation of the lock and rotation of the barrel by useof the authorized key.

Still further objects and features of this invention reside in the provision of a protective casing for a lock that is simple in construction, capable of being manufactured out of the most rugged and strong materials in a single casting or forging, which is relatively inexpensive to produce thereby permitting wide use and distribution, and which is provided with means for attaching the casing to a padlock or the like.

These, together with the various ancillary objects and features of the present invention, which will become apparent as the following description proceeds, are attained by this protective lock casing, a preferred embodiment of which is illustration in the accompanying drawing, by way of example only, wherein;

FIG. 1 is a perspective view of a protective casing for a lock shown with the lock secured therein;

FIG. 2 is a longitudinal sectional view through the invention showing the manner in which a lock is secured on a gate or a like enclosure;

FIG. 3 is an elevational view with parts being broken away to show details of the invention, illustrating the device as used for securing closure for a gate or the like; and,

FIG. 4 is a bottom plan view of the invention.

With continuing reference to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, reference numeral is used to generally designate the protective casing adapted to be utilized with a lock of the type such as a padlock, generally indicated by reference numeral 12. The lock 12 is of the type which is provided with a body 14 having a locking barrel 16 which is key operated and which is provided with a slot 18 therein for receiving the key for actuating the tumblers (not shown) of the locking barrel which control the locking of the shackle 20 of the padlock 12.

The protective casing 10 includes a sheath 22 including a front wall 24, a rear wall 26, side walls 28 and 30, and a generally channel-shaped extension or projection 32, which includes an extension 34 of the side wall 28, an extension 36 of the side wall 30, and an extension 38 of the bottom 26.

The casing 10 also includes a pair of flanges 40 and 42, the flange 40 being integral with and inwardly turned from the front wall 24, while flange 42 is inwardly turned from the side wall 22 and is welded to the enlarged bottom wall 26 against which the body 14 bears. Special types of rivets 50 which extend through the front wall 24 are provided for fixedly securing the padlock 14 within the casing 10 and are of the type that are hammered or force fitted into holes 52, which are previously drilled in the padlock 12.

In use, a key is inserted in the slot 18 and the lock is opened by rotation in the direction of arrows 56. Then, with the shackle 20 in an open position, it is passed through the adjacent eye members 58 and 600i a fixed gate portion 62 and a movable gate portion 64 respectively. Of course, the protective lock casing can be utilized in conjunction with various other types of enclosures as may be desired.

A latitude of modification, substitution, and change is intended in the foregoing disclosure, and in some instances, some features of the invention may be employed without a corresponding use of other features.

I claim:

1. A protective casing for a lock having a body, a barrel, a shackle comprising a sheath surrounding said body and having channel-shaped means surrounding said shackle on three sides for protecting said shackle, said sheath including inwardly directed flange means for underlying said body and a portion of said barrel for preventing removal of said barrel yet permitting rotation thereof, and means for securing said sheath to said lock extending through said sheath into said body.

2. A protective casing for a lock according to claim 1, wherein said flange means include a pair of flanges, each underlying a portion of said barrel, said channelshaped means extending substantially beyond said shackle and being an integral channel extension of said

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4238941 *Sep 11, 1978Dec 16, 1980David HalopoffSecurity shield for padlock
US4290281 *May 27, 1980Sep 22, 1981Knaack Manufacturing CompanyLock system
US4345448 *Sep 28, 1978Aug 24, 1982Solomon Martin DClosure assembly with protective lock
US4592579 *Mar 22, 1983Jun 3, 1986Burnett Ralph GShipping container seal
US4686840 *Dec 24, 1986Aug 18, 1987Mccarroll ClarkLock guard
US4726202 *Aug 15, 1983Feb 23, 1988Loacano Joseph PFluid line lock assembly
US4905486 *Jan 30, 1989Mar 6, 1990Paul AppelbaumLockable security cover for a padlock
US5146771 *Jun 3, 1991Sep 15, 1992Loughlin Robert WSecurity shield for padlocks
US5219384 *Dec 23, 1991Jun 15, 1993Elsfelder Mark SVehicle lock protector
US5878604 *Aug 11, 1997Mar 9, 1999Transguard IndustriesProtection device for bolt seal and hasp
US6578393Mar 12, 2001Jun 17, 2003Doyle YarboroughtSecurity cover for padlock
US9194159 *Jun 11, 2013Nov 24, 2015ABUS August Bremicker Söhne KGPadlock
US20100037665 *Oct 23, 2009Feb 18, 2010Ace-Kirker Wayne LionelSecurity device for lock and method of manufacture thereof
US20140246871 *Jul 30, 2012Sep 4, 2014Fook Chuan LeeLock hasp apparatus
US20140360234 *Jun 11, 2013Dec 11, 2014Abus August Bremicker Sohne KgPadlock
DE102011100773B3 *May 3, 2011Aug 2, 2012Gerhardt Braun Kellertrennwandsysteme GmbhProtection device for padlock of locking device used in e.g. cellar door, has receptacle that includes insertion module having insertion portion into which lock element is inserted, and open side which is securely inserted into case
EP0213802A2 *Aug 6, 1986Mar 11, 1987Ogden Industries Pty. Ltd.Padlock
EP0213802A3 *Aug 6, 1986Mar 30, 1988Ogden Industries Pty. Ltd.Padlock
EP2511457A1 *Apr 10, 2012Oct 17, 2012G.T. Line-S.r.L.Locking device, particularly for containers of the type of suitcases, trunks and the like
WO1991013228A1 *Feb 22, 1990Sep 5, 1991Paul AppelbaumLockable security cover for a padlock
WO1994002703A1 *May 27, 1993Feb 3, 1994Andrew John FillinghamLock device
U.S. Classification70/55, 70/417
International ClassificationE05B67/00, E05B67/38
Cooperative ClassificationE05B67/38
European ClassificationE05B67/38