US3744280A - High security locking mechanism - Google Patents

High security locking mechanism Download PDF

Info

Publication number
US3744280A
US3744280A US3744280DA US3744280A US 3744280 A US3744280 A US 3744280A US 3744280D A US3744280D A US 3744280DA US 3744280 A US3744280 A US 3744280A
Authority
US
United States
Prior art keywords
shackle
hasp
keeper
aperture
attached
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.)
Expired - Lifetime
Application number
Inventor
W Brown
E Gabrielson
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.)
US Department of Navy
Original Assignee
US Department of Navy
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 US Department of Navy filed Critical US Department of Navy
Application granted granted Critical
Publication of US3744280A publication Critical patent/US3744280A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B67/00—Padlocks; Details thereof
    • E05B67/38—Auxiliary or protective devices
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1063—Gravity actuated
    • Y10T292/1064—Operating means
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/40—Portable
    • Y10T70/413—Padlocks
    • Y10T70/487—Parts, accessories, attachments and adjuncts
    • Y10T70/493—Protectors

Definitions

  • a keeper is attached to a first door element, and a hasp is attached to a second door element and has a shackle guard that prevents a cutting device from engaging a shackle of a padlock connecting the keeper and hasp.
  • a lock guard is attached to the first door element beneath the keeper and protects the case of said padlock.
  • the present invention relates to a locking device for use with either one or two doors and more particularly to a high security locking device having means for preventing cutting or breaking a padlock used as a locking means.
  • Padlocks are widely used to secure one door to a door jamb and to secure two doors together.
  • a hasp and keeper are normally provided and the padlock se-. cures these two elements together.
  • Various tools such as crowbars or hollow pipes can be used however to break either the lock or hasp.
  • a long hollow pipe, for example, can be inserted over a lock case and sufficient leverage can be obtained to break a lock or hasp in a few seconds.
  • the present invention utilizes a hasp and keeper which are attached to separate door elements and the shackle of a padlock is passed through apertures in the hasp and keeper to secure the two elements together.
  • a shackle guard is attached to the top edge of the hasp and prevents access to the shackle of a padlock when the shackle is engaged with the hasp and keeper.
  • a lock guard is attached beneath the keeper for retaining the padlock case and this lock guard prevents a leverage tool, such as a crowbar or pipe from engaging and breaking the lock case.
  • a keeper l3 is-attached to door element 11, and keeper 13 has a flat portion 14 which is attached, as by welding, to door element 11, and an outwardly extending flange 15 which is substantially perpendicular to flat portion 14.
  • An aperture 16 is provided in flange 15 for receiving the shackle 17 of a padlock 18.
  • a lock guard 19 is provided on door element 11 and has a flat portion 21 which is attached, as by welding, to door element 11 and an outwardly extending flange 22.
  • Flange 22 has an aperture 23 for receiving the case 23 of padlock 18.
  • a hasp 24 is provided on door element 12 and has a flat portion 25 which is attached, as by welding, to door element 12.
  • Hasp 24 is provided with an outwardly extending flange 26 which is substantially perpendicular to flat portion 25.
  • An aperture 27 is provided in flange 26 for receiving shackle 17 of padlock 18.
  • a shackle guard 28 is attached, as by welding, to the top edge of hasp 24.
  • flange 26 is adjacent to and parallel with flange 15 and apertures 16 and 17 in flanges l5 and 26, respectively, are in alignment.
  • Padlock 18 is preferably of the high security type shown in FIG. 4 of the drawing and case 29 forms a shroud to guard shackle 17.
  • shackle 17 disengages from case 29 in order to facilitate locking.
  • the bottom portion of case 29 is inserted into aperture 23 of flange 22 and shackle 17 is passed through apertures 16 and 27 in keeper l3 and hasp 24. Shackle 17 is then mated with case 29 and these two parts become locked together.
  • Flange 22 of lock guard 19 prevents a tool, such as a hollow pipe, from encircling case 29, thereby preventing any breaking of the lock and shackle guard 28 prevents any cutting or prying device to engage shackle 17.
  • a tool such as a hollow pipe
  • shackle guard 28 prevents any cutting or prying device to engage shackle 17.
  • a lock mechanism comprising,
  • a locking member having a case and a shackle
  • a keeper adaptable to be attached to a first door element and having an aperture for receiving said shackle of said locking member
  • a hasp adaptable to be attached to a second door element and having an aperture for receiving said shackle of said locking member
  • a shackle guard attached to the top edge of said hasp for preventing access by a cutting element to said shackle when said shackle is engaged in the apertures of said keeper and hasp
  • a lock guard attached to said first door element and having an aperture for receiving said case of said locking member when said shackle is engaged in said apertures of said keeper and said hasp.

Landscapes

  • Securing Of Glass Panes Or The Like (AREA)

Abstract

A locking mechanism for securing one or two doors by using a padlock and having means preventing cutting or breaking said padlock. A keeper is attached to a first door element, and a hasp is attached to a second door element and has a shackle guard that prevents a cutting device from engaging a shackle of a padlock connecting the keeper and hasp. A lock guard is attached to the first door element beneath the keeper and protects the case of said padlock.

Description

United States Patent 1 Brown, Jr. et al.
111 3,744,280 [451 July 1973 HIGH SECURITY LOCKING MECHANISM [75] Inventors: William D. Brown, Jr., Subic Bay,
Philippines; Edward Gabrielson, El Cajon, Calif.
[73] Assignee: The United States of America as represented by the Secretary of the Navy, Washington, DC.
22 Filed: July 28,1972
21 Appl. No.2 277,717
[52] US. Cl. 70/54, 292/281 [51] int. Cl E05b 67/38 [58] Field of Search 70/52, 54, 55, 56,
[56] References Cited UNITED STATES PATENTS 3,460,861 8/1969 Niilola 292/281 2,766,605 10/1952 OBrien 70/8 3,652,114 3/1972 Cady 292/281 FOREIGN PATENTS OR APPUCATIONS 103,308 2/1964 Norway 70/56 Primary Examiner-.Robert L. Wolfe Attorney- R. S. Sciascia and Paul S, Collignon [57 ABSTRACT A locking mechanism for securing one or two doors by using a padlock and having means preventing cutting or breaking said padlock. A keeper is attached to a first door element, and a hasp is attached to a second door element and has a shackle guard that prevents a cutting device from engaging a shackle of a padlock connecting the keeper and hasp. A lock guard is attached to the first door element beneath the keeper and protects the case of said padlock.
4 Claims, 4 Drawing Figures 1 HIGH SECURITY LOCKING MECHANISM BACKGROUND OF THE INVENTION The present invention relates to a locking device for use with either one or two doors and more particularly to a high security locking device having means for preventing cutting or breaking a padlock used as a locking means.
Padlocks are widely used to secure one door to a door jamb and to secure two doors together. A hasp and keeper are normally provided and the padlock se-. cures these two elements together. Various tools such as crowbars or hollow pipes can be used however to break either the lock or hasp. A long hollow pipe, for example, can be inserted over a lock case and sufficient leverage can be obtained to break a lock or hasp in a few seconds.
SUMMARY OF THE INVENTION The present invention utilizes a hasp and keeper which are attached to separate door elements and the shackle of a padlock is passed through apertures in the hasp and keeper to secure the two elements together.
A shackle guard is attached to the top edge of the hasp and prevents access to the shackle of a padlock when the shackle is engaged with the hasp and keeper. A lock guard is attached beneath the keeper for retaining the padlock case and this lock guard prevents a leverage tool, such as a crowbar or pipe from engaging and breaking the lock case.
BRIEF DESCRIPTION OF THEDRAWING DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawing, a preferred embodiment of the present invention is shown for securing two door elements 11 and 12 which, as shown, are two hinged doors. Either door element, however, could be a door jamb and the invention would work equally well for a single door. A keeper l3 is-attached to door element 11, and keeper 13 has a flat portion 14 which is attached, as by welding, to door element 11, and an outwardly extending flange 15 which is substantially perpendicular to flat portion 14. An aperture 16 is provided in flange 15 for receiving the shackle 17 of a padlock 18. A lock guard 19 is provided on door element 11 and has a flat portion 21 which is attached, as by welding, to door element 11 and an outwardly extending flange 22. Flange 22 has an aperture 23 for receiving the case 23 of padlock 18.
A hasp 24 is provided on door element 12 and has a flat portion 25 which is attached, as by welding, to door element 12. Hasp 24 is provided with an outwardly extending flange 26 which is substantially perpendicular to flat portion 25. An aperture 27 is provided in flange 26 for receiving shackle 17 of padlock 18. A shackle guard 28 is attached, as by welding, to the top edge of hasp 24. As best shown in FIG. 2 of the drawings, when door elements 11 and 12 are in a closed relationship, flange 26 is adjacent to and parallel with flange 15 and apertures 16 and 17 in flanges l5 and 26, respectively, are in alignment.
Padlock 18 is preferably of the high security type shown in FIG. 4 of the drawing and case 29 forms a shroud to guard shackle 17. Preferably, shackle 17 disengages from case 29 in order to facilitate locking. In operation, assuming door elements 11 and 12 are in a closed relationship as shown in FIG. 2 of the drawing, the bottom portion of case 29 is inserted into aperture 23 of flange 22 and shackle 17 is passed through apertures 16 and 27 in keeper l3 and hasp 24. Shackle 17 is then mated with case 29 and these two parts become locked together. Flange 22 of lock guard 19 prevents a tool, such as a hollow pipe, from encircling case 29, thereby preventing any breaking of the lock and shackle guard 28 prevents any cutting or prying device to engage shackle 17. Upon unlocking padlock 18, shackle 17 can be removed from keeper 13 and hasp 24 and door elements 11 and 12 are free to be opened.
We claim:
1. A lock mechanism comprising,
a locking member having a case and a shackle,
a keeper adaptable to be attached to a first door element and having an aperture for receiving said shackle of said locking member,
a hasp adaptable to be attached to a second door element and having an aperture for receiving said shackle of said locking member,
a shackle guard attached to the top edge of said hasp for preventing access by a cutting element to said shackle when said shackle is engaged in the apertures of said keeper and hasp, and
a lock guard attached to said first door element and having an aperture for receiving said case of said locking member when said shackle is engaged in said apertures of said keeper and said hasp.
2. A lock mechanism as set forth in claim 1 wherein said keeper and hasp are each L-shaped and each have a flat portion adaptable for attaching to a door element and an outwardly extending flange having an aperture therein, said aperture in said hasp being in alignment with said aperture in said keeper whenever said first and second door elements are in a closed relationship.
3. A lock mechanism as set forth in claim 1 wherein said lock guard is L-shaped and has a flat portion adaptable for attaching to a door element and an outwardly extending flange having an aperture therein.
4. A lock mechanism as set forth in claim I wherein said locking member is a key-operated padlock.

Claims (4)

1. A lock mechanism comprising, a locking member having a case and a shackle, a keeper adaptable to be attached to a first door element and having an aperture for receiving said shackle of said locking member, a hasp adaptable to be attached to a second door element and having an aperture for receiving said shackle of said locking member, a shackle guard attached to the top edge of said hasp for preventing access by a cutting element to said shackle when said shackle is engaged in the apertures of said keeper and hasp, and a lock guard attached to said first door element and having an aperture for receiving said case of said locking member when said shackle is engaged in said apertures of said keeper and said hasp.
2. A lock mechanism as set forth in claim 1 wherein said keeper and hasp are each L-shaped and each have a flat portion adaptable for attaching to a door element and an outwardly extending flange having an aperture therein, said aperture in said hasp being in alignment with said aperture in said keeper whenever said first and second door elements are in a closed relationship.
3. A lock mechanism as set forth in claim 1 wherein said lock guard is L-shaped and has a flat portion adaptable for attaching to a door element and an outwardly extending flange having an aperture therein.
4. A lock mechanism as set forth in claim 1 wherein said locking member is a key-operated padlock.
US3744280D 1972-07-28 1972-07-28 High security locking mechanism Expired - Lifetime US3744280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27771772A 1972-07-28 1972-07-28

Publications (1)

Publication Number Publication Date
US3744280A true US3744280A (en) 1973-07-10

Family

ID=23062071

Family Applications (1)

Application Number Title Priority Date Filing Date
US3744280D Expired - Lifetime US3744280A (en) 1972-07-28 1972-07-28 High security locking mechanism

Country Status (1)

Country Link
US (1) US3744280A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858923A (en) * 1973-10-18 1975-01-07 Frank C Bunn High security hasp
US3916654A (en) * 1975-01-08 1975-11-04 Jr Karl E Mudge Padlock protector
DE3243445A1 (en) * 1981-11-25 1983-07-07 Abraham Bahry PROTECTIVE CLOSING TAPE FOR A PADLOCK
US4581907A (en) * 1984-01-30 1986-04-15 Eberly David S Padlock protector
US4745783A (en) * 1987-06-29 1988-05-24 Poe Lloyd R Tamper proof padlock hasp apparatus
US4788836A (en) * 1987-06-29 1988-12-06 Poe Lloyd R Constraining tamper proof padlock hasp apparatus
US4843845A (en) * 1988-01-25 1989-07-04 Poe Lloyd R Padlock shackle and hasp staple protector
US5029909A (en) * 1990-10-01 1991-07-09 Bunger Richard E Door lock assembly
US5035127A (en) * 1989-09-29 1991-07-30 Servial Cc Aps Lock arrangement for containers
US5261258A (en) * 1992-10-02 1993-11-16 Bunger Richard E Padlock protector
USD378568S (en) * 1995-06-29 1997-03-25 Small Michael H Padlock shackle protector
US5845520A (en) * 1997-04-16 1998-12-08 Dolev; Moshe Locks and hasps
US5946952A (en) * 1998-11-25 1999-09-07 Mintchenko; Jouri Lock cover system
US20050126235A1 (en) * 2003-12-15 2005-06-16 J.E. Melchiori Method and kit for securing an upwardly acting cargo container door
US20060201210A1 (en) * 2004-09-23 2006-09-14 Gogel Roy E Stanchion lever lock guard
US20080000273A1 (en) * 2006-06-16 2008-01-03 William Taylor Locking system
US8266932B2 (en) 2010-12-14 2012-09-18 Danny Longwell Theft deterrent locking hasp
US8381554B2 (en) 2011-03-23 2013-02-26 Powerbrace Corporation Lock-protecting hasp apparatus
US20160083977A1 (en) * 2014-09-18 2016-03-24 Mark A. Pickard Padlock retaining device
US20160265276A1 (en) * 2015-03-11 2016-09-15 Alex Hartman Locking Climbing Stick or Climbing Pole
US11814878B2 (en) * 2020-06-09 2023-11-14 Dynamic Manufacturing Group LLC Door hasp lock and associated method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2766605A (en) * 1955-09-12 1956-10-16 O'brien Eugene Lock mechanism
US3460861A (en) * 1967-08-30 1969-08-12 Niilola Armas K Staples for padlock
US3652114A (en) * 1969-11-13 1972-03-28 Best Look Corp Security hasp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2766605A (en) * 1955-09-12 1956-10-16 O'brien Eugene Lock mechanism
US3460861A (en) * 1967-08-30 1969-08-12 Niilola Armas K Staples for padlock
US3652114A (en) * 1969-11-13 1972-03-28 Best Look Corp Security hasp

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858923A (en) * 1973-10-18 1975-01-07 Frank C Bunn High security hasp
US3916654A (en) * 1975-01-08 1975-11-04 Jr Karl E Mudge Padlock protector
DE3243445A1 (en) * 1981-11-25 1983-07-07 Abraham Bahry PROTECTIVE CLOSING TAPE FOR A PADLOCK
US4581907A (en) * 1984-01-30 1986-04-15 Eberly David S Padlock protector
US4745783A (en) * 1987-06-29 1988-05-24 Poe Lloyd R Tamper proof padlock hasp apparatus
US4788836A (en) * 1987-06-29 1988-12-06 Poe Lloyd R Constraining tamper proof padlock hasp apparatus
US4843845A (en) * 1988-01-25 1989-07-04 Poe Lloyd R Padlock shackle and hasp staple protector
US5035127A (en) * 1989-09-29 1991-07-30 Servial Cc Aps Lock arrangement for containers
US5029909A (en) * 1990-10-01 1991-07-09 Bunger Richard E Door lock assembly
US5261258A (en) * 1992-10-02 1993-11-16 Bunger Richard E Padlock protector
USD378568S (en) * 1995-06-29 1997-03-25 Small Michael H Padlock shackle protector
US5845520A (en) * 1997-04-16 1998-12-08 Dolev; Moshe Locks and hasps
US5946952A (en) * 1998-11-25 1999-09-07 Mintchenko; Jouri Lock cover system
US20050126235A1 (en) * 2003-12-15 2005-06-16 J.E. Melchiori Method and kit for securing an upwardly acting cargo container door
US20060201210A1 (en) * 2004-09-23 2006-09-14 Gogel Roy E Stanchion lever lock guard
US20070074546A1 (en) * 2004-09-23 2007-04-05 Gogel Roy E Stanchion lever lock guard
US7201028B1 (en) * 2004-09-23 2007-04-10 Gogel Roy E Stanchion lever lock guard
US20080000273A1 (en) * 2006-06-16 2008-01-03 William Taylor Locking system
US7562546B2 (en) * 2006-06-16 2009-07-21 Jdm Venture Llc Locking system
US8266932B2 (en) 2010-12-14 2012-09-18 Danny Longwell Theft deterrent locking hasp
US8381554B2 (en) 2011-03-23 2013-02-26 Powerbrace Corporation Lock-protecting hasp apparatus
US20160083977A1 (en) * 2014-09-18 2016-03-24 Mark A. Pickard Padlock retaining device
US9551167B2 (en) * 2014-09-18 2017-01-24 Mark A. Pickard Padlock retaining device
US20170130484A1 (en) * 2014-09-18 2017-05-11 Mark A. Pickard Padlock retaining device
US9803397B2 (en) * 2014-09-18 2017-10-31 Mark A. Pickard Padlock retaining device
US10184273B2 (en) 2014-09-18 2019-01-22 Mark A. Pickard Padlock retaining device
US20160265276A1 (en) * 2015-03-11 2016-09-15 Alex Hartman Locking Climbing Stick or Climbing Pole
US11814878B2 (en) * 2020-06-09 2023-11-14 Dynamic Manufacturing Group LLC Door hasp lock and associated method

Similar Documents

Publication Publication Date Title
US3744280A (en) High security locking mechanism
US3751948A (en) Protective lock casing
US3718014A (en) Burglar-proof locking device
US4581907A (en) Padlock protector
US4345448A (en) Closure assembly with protective lock
US3858923A (en) High security hasp
US4068505A (en) Locking device
GB1230588A (en)
US4884424A (en) Mortise cylinder lock guard
CA2275582A1 (en) Security door-locking system
US4013311A (en) High security door lock
US4041741A (en) Automobile trunk guard
US7201027B2 (en) Lock guard with protective roof
US4237712A (en) Latch and cylinder guard
US3916654A (en) Padlock protector
US3837191A (en) Safety lock device for windows
US3071957A (en) Locking mechanism
US5547239A (en) Latch guard for center hung doors
US3938837A (en) Safety lock for enclosures
US6332344B1 (en) Deadbolt security chain
US1813240A (en) Lock
US3791683A (en) Safety lock for enclosures
US11346135B1 (en) Cover assembly for lock assembly of a shipping container
US3936083A (en) Safety lock for enclosures
GB2051940A (en) Locking Device