US3345837A - Padlock - Google Patents
Padlock Download PDFInfo
- Publication number
- US3345837A US3345837A US471373A US47137365A US3345837A US 3345837 A US3345837 A US 3345837A US 471373 A US471373 A US 471373A US 47137365 A US47137365 A US 47137365A US 3345837 A US3345837 A US 3345837A
- Authority
- US
- United States
- Prior art keywords
- padlock
- shackle
- casing
- leg
- shaped
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B67/00—Padlocks; Details thereof
- E05B67/06—Shackles; Arrangement of the shackle
- E05B67/22—Padlocks with sliding shackles, with or without rotary or pivotal movement
-
- 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
- Y10T70/489—Housings
Definitions
- a padlock having an inverted U-shaped shackle and an L-shaped casing provides in the fastened condition a completely concealed shackle with no accessible or exposed element vulnearable to tampering.
- the padlock, shackle and casing are each fabricated. of multilayered plates, which function in the fastened condition to conceal the joint there'between.
- This invention relates to a padlock and more particularly to a padlock which resists tampering.
- the hasp or shackle is usually formed of a U-shaped rod whose ends are fitted into the body or casing of the lock within which the locking mechanism is contained.
- the hasp or shackle is exposed and thus, may be easily cut through with a hacksaw or broken open With a cold chisel or crowbar.
- Another object of this invention is to provide a simple, inexpensive lock constructon using a conventional locking mechanism wherein the lock casing and the hasp cooperate to form a C-shaped lock bridged by a locking leg and arranged to receive the members to be locked Within the C-shape so that the members to be locked cooperate to screen or shield the hasp or shackle parts from-access for sawing or prying open.
- FIG. 1 is an elevational view of the padlock lockingtogether two angle shaped members.
- FIG. 2 is an elevational view of the padlock shown in its open position.
- FIG. 3 is a perspective view of the padlock in locked position
- FIG. 4 is a perspective view of the padlock in open position.
- the padlock is formed of an L-shaped base 11 having a vertical leg 12 and a horizontal leg 13.
- the base or casing is illustrated as being formed of a large number of separate plates connected together, as is conventional. Contained within the casing is the conventional locking mechanism which may be of the key operated type.
- the locking mechanism itself forms no part of this invention and hence is omitted from the drawings. It should be understood that any conventional locking mechanism may be used herein and the same is not relevant to the inventive features hereof.
- the padlock additionally includes a U-shaped shackle 15 formed of a base or head 16 having two depending legs, namely a long, connecting leg 17, and a short, locking leg 18, each having the conventional locking notches 19.
- the long, connecting leg slidably fits into a passageway 20 formed in the vertical leg 12 of the casing and opening at the top of such vertical leg.
- the short leg 18 fits into a passageway 21 formed in the horizontal 3,345,837 Patented Oct. 10, 1967 ice mechanism and for being released by the locking mechatact with the upper surface of the vertical leg 12, as shown in FIG. 1, the base 16 and the L-shaped casing, together form what appears to be a unitary C-shaped clamping structure. Since they are both formed of similar materials, the base appears to be integral with the casing and it is extremely difficult to tell where the base begins and the casing ends.
- FIG. 1 illustrates the padlock in use to lock together two angle plates 24-25 each provided with an opening 26 through which the short, locking leg 18 is passed.
- the space between the base 16 and the horizontal leg 13 of the casing is only slightly larger than the two objects to be locked together so that the objects to be locked together block off the space and prevent the entrance of a prying chisel or crowbar or the like.
- the two angle plates 24-25 could be flanges formed on a pair of metal doors closing a truck or a large metal container, and the padlock, being made specifically for that purpose, is provided with a space between the base and the horizontal leg of the casing which is approximately equal to the combined thickness of the two flanges. The flanges may he slipped into that space when the lock is open, as shown in FIG. 2, and substantially fills the space when the lock is closed, as shown in FIG. 1.
- the resulting padlock construction provides a uniformly thick and wide C-shaped clamp configuration, with the head of the shackle seemingly integral with the L-shaped casing. Due to the height of the shackle base, plus the close spacing to receive the items to be locked, the resulting lock is extremely difl'icult to tamper with or break open. Particularly, it is virtually impossible to hacksaw through the legs 17 or 18 or to pry them apart in order to break open the lock.
- a padlock comprising: an L-shaped casing comprising a vertical leg and a horizontal leg, said legs being provided with first and second vertically disposed pasages, respectively;
- an inverted U-shaped shackle comprising a horizontal head and first and second depending parallel legs and movable between a fastened condition and a released condition, said first shackle leg being mounted within said first passage of said vertical casing leg for pivotal and axial movement therein;
Description
L. M. BARNES Oct. 10, 1967 PADLOCK Filed July 12. 1965 FIG-l Pies INVENTOR N I m M M. Z W I 6 ATTORNEYS United States Patent 3,345,837 1 PADLOCK Lawrence M. Barnes, 24201 Beverly Ave.,
, Oak Park, Mich. 48237 Filed July 12, 1965, Ser. No. 471,373 1 Claim. (Cl. 70-52) ABSTRACT OF THE DISCLOSURE A padlock having an inverted U-shaped shackle and an L-shaped casing provides in the fastened condition a completely concealed shackle with no accessible or exposed element vulnearable to tampering. The padlock, shackle and casing are each fabricated. of multilayered plates, which function in the fastened condition to conceal the joint there'between.
This invention relates to a padlock and more particularly to a padlock which resists tampering.
In a conventional padlock the hasp or shackle is usually formed of a U-shaped rod whose ends are fitted into the body or casing of the lock within which the locking mechanism is contained. The hasp or shackle is exposed and thus, may be easily cut through with a hacksaw or broken open With a cold chisel or crowbar.
Thus, it is an object of this invention to provide a padlock wherein the hasp or shackle is so constructed that it is substantially tamper-proof, and particularly, wherein the shackle is so constructed that it is extremely difficult, if not impossible, to apply a hacksaw to it or to fit a crowbar or cold chisel within it to break it open.
Another object of this invention is to provide a simple, inexpensive lock constructon using a conventional locking mechanism wherein the lock casing and the hasp cooperate to form a C-shaped lock bridged by a locking leg and arranged to receive the members to be locked Within the C-shape so that the members to be locked cooperate to screen or shield the hasp or shackle parts from-access for sawing or prying open.
These and other objects and advantages of this invention will become apparent upon reading the following description of which the attached drawings form a part.
In these drawings:
FIG. 1 is an elevational view of the padlock lockingtogether two angle shaped members.
FIG. 2 is an elevational view of the padlock shown in its open position.
FIG. 3 is a perspective view of the padlock in locked position, and
FIG. 4 is a perspective view of the padlock in open position.
Referring to the drawings, the padlock is formed of an L-shaped base 11 having a vertical leg 12 and a horizontal leg 13. The base or casing is illustrated as being formed of a large number of separate plates connected together, as is conventional. Contained within the casing is the conventional locking mechanism which may be of the key operated type. The locking mechanism itself forms no part of this invention and hence is omitted from the drawings. It should be understood that any conventional locking mechanism may be used herein and the same is not relevant to the inventive features hereof.
The padlock additionally includes a U-shaped shackle 15 formed of a base or head 16 having two depending legs, namely a long, connecting leg 17, and a short, locking leg 18, each having the conventional locking notches 19.
The long, connecting leg, slidably fits into a passageway 20 formed in the vertical leg 12 of the casing and opening at the top of such vertical leg. Similarly, the short leg 18 fits into a passageway 21 formed in the horizontal 3,345,837 Patented Oct. 10, 1967 ice mechanism and for being released by the locking mechatact with the upper surface of the vertical leg 12, as shown in FIG. 1, the base 16 and the L-shaped casing, together form what appears to be a unitary C-shaped clamping structure. Since they are both formed of similar materials, the base appears to be integral with the casing and it is extremely difficult to tell where the base begins and the casing ends.
FIG. 1 illustrates the padlock in use to lock together two angle plates 24-25 each provided with an opening 26 through which the short, locking leg 18 is passed.
Preferably, the space between the base 16 and the horizontal leg 13 of the casing is only slightly larger than the two objects to be locked together so that the objects to be locked together block off the space and prevent the entrance of a prying chisel or crowbar or the like. For example, the two angle plates 24-25 could be flanges formed on a pair of metal doors closing a truck or a large metal container, and the padlock, being made specifically for that purpose, is provided with a space between the base and the horizontal leg of the casing which is approximately equal to the combined thickness of the two flanges. The flanges may he slipped into that space when the lock is open, as shown in FIG. 2, and substantially fills the space when the lock is closed, as shown in FIG. 1.
As can be seen, the resulting padlock construction provides a uniformly thick and wide C-shaped clamp configuration, with the head of the shackle seemingly integral with the L-shaped casing. Due to the height of the shackle base, plus the close spacing to receive the items to be locked, the resulting lock is extremely difl'icult to tamper with or break open. Particularly, it is virtually impossible to hacksaw through the legs 17 or 18 or to pry them apart in order to break open the lock.
This invention may be further developed with the scope of the following attached claim. Accordingly, it is desired that the foregoing description be read as merely illustrative of an operative embodiment of this invention and not in a strictly limited sense.
Having described an operative embodiment of this invention, I new claim:
A padlock comprising: an L-shaped casing comprising a vertical leg and a horizontal leg, said legs being provided with first and second vertically disposed pasages, respectively;
an inverted U-shaped shackle comprising a horizontal head and first and second depending parallel legs and movable between a fastened condition and a released condition, said first shackle leg being mounted within said first passage of said vertical casing leg for pivotal and axial movement therein;
in the released condition of the padlock said shackle being lifted upward relative to said casing whereby said second shackle leg is removed from said second passage of said horizontal casing leg;
in the fastened condition of the padlock said shackle being lowered until said second shackle leg is engaged within said second passage within said horizon- 3 4 tal casing leg, the lower face of said shackle head ened condition is indistinguishible from the joints beabutting the upper face of said casing vertical leg, so tween each of said plates. that said casing and shackle head together create a C-shaped configuration, whereby a gap remains be- References Cited tween the lower face of said shackle head and the 5 UNITED STATES PATENTS upper face of said casing horizontal leg adjacent and 1, 90 041 10 192 sundquist 7 surrounding said second shackle leg, said shackle 2,104,9 1 1 193 1 70 3g X head and casing 'both being fabricated of a plurality 2,893 232 7/1959 F et 1 70 .3
of horizontally disposed plates, whereby the joint between said shackle head and said casing in the fast- 10 BOBBY R. GAY, Primary Examiner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US471373A US3345837A (en) | 1965-07-12 | 1965-07-12 | Padlock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US471373A US3345837A (en) | 1965-07-12 | 1965-07-12 | Padlock |
Publications (1)
Publication Number | Publication Date |
---|---|
US3345837A true US3345837A (en) | 1967-10-10 |
Family
ID=23871374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US471373A Expired - Lifetime US3345837A (en) | 1965-07-12 | 1965-07-12 | Padlock |
Country Status (1)
Country | Link |
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US (1) | US3345837A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3422644A (en) * | 1967-11-07 | 1969-01-21 | Master Lock Co | Interlocking plate assembly for laminated padlock bodies |
US3638460A (en) * | 1969-01-03 | 1972-02-01 | Ingersoll Locks Ltd | Locking bars |
US3652114A (en) * | 1969-11-13 | 1972-03-28 | Best Look Corp | Security hasp |
USRE29643E (en) * | 1971-01-05 | 1978-05-30 | Ingersoll Locks, Limited | Locking bars |
US4226099A (en) * | 1977-08-03 | 1980-10-07 | Patentes Fac, S.A. | Padlock |
DE3243445A1 (en) * | 1981-11-25 | 1983-07-07 | Abraham Bahry | PROTECTIVE CLOSING TAPE FOR A PADLOCK |
WO1999000567A2 (en) * | 1997-05-12 | 1999-01-07 | Brighton, Barry, David | Padlocks and padlock accessories |
EP1001121A1 (en) * | 1998-11-11 | 2000-05-17 | Larry Edward Houghton | Swivel action padlock |
US20050039500A1 (en) * | 2003-01-29 | 2005-02-24 | Yu Chun Te | Padlock |
US20170130484A1 (en) * | 2014-09-18 | 2017-05-11 | Mark A. Pickard | Padlock retaining device |
US10577833B1 (en) * | 2018-08-10 | 2020-03-03 | Schlage Lock Company Llc | Compact bike lock |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1690041A (en) * | 1925-06-08 | 1928-10-30 | John V Sundquist | Securing device |
US2104981A (en) * | 1936-11-06 | 1938-01-11 | Independent Lock Co | Lock |
US2893232A (en) * | 1955-10-27 | 1959-07-07 | Master Lock Co | Laminated padlock |
-
1965
- 1965-07-12 US US471373A patent/US3345837A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1690041A (en) * | 1925-06-08 | 1928-10-30 | John V Sundquist | Securing device |
US2104981A (en) * | 1936-11-06 | 1938-01-11 | Independent Lock Co | Lock |
US2893232A (en) * | 1955-10-27 | 1959-07-07 | Master Lock Co | Laminated padlock |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3422644A (en) * | 1967-11-07 | 1969-01-21 | Master Lock Co | Interlocking plate assembly for laminated padlock bodies |
US3638460A (en) * | 1969-01-03 | 1972-02-01 | Ingersoll Locks Ltd | Locking bars |
US3652114A (en) * | 1969-11-13 | 1972-03-28 | Best Look Corp | Security hasp |
USRE29643E (en) * | 1971-01-05 | 1978-05-30 | Ingersoll Locks, Limited | Locking bars |
US4226099A (en) * | 1977-08-03 | 1980-10-07 | Patentes Fac, S.A. | Padlock |
DE3243445A1 (en) * | 1981-11-25 | 1983-07-07 | Abraham Bahry | PROTECTIVE CLOSING TAPE FOR A PADLOCK |
WO1999000567A2 (en) * | 1997-05-12 | 1999-01-07 | Brighton, Barry, David | Padlocks and padlock accessories |
WO1999000567A3 (en) * | 1997-05-12 | 1999-03-25 | Brighton Barry David | Padlocks and padlock accessories |
EP1001121A1 (en) * | 1998-11-11 | 2000-05-17 | Larry Edward Houghton | Swivel action padlock |
US20050039500A1 (en) * | 2003-01-29 | 2005-02-24 | Yu Chun Te | Padlock |
US20070271969A9 (en) * | 2003-01-29 | 2007-11-29 | Yu Chun T | Padlock |
US8091391B2 (en) * | 2003-01-29 | 2012-01-10 | Chun Te Yu | Padlock |
US20120073337A1 (en) * | 2003-01-29 | 2012-03-29 | Chun Te Yu | Padlock |
US8505343B2 (en) * | 2003-01-29 | 2013-08-13 | Chun Te Yu And Fullyear-Brother Enterprise Co. | Padlock |
US8931314B2 (en) | 2003-01-29 | 2015-01-13 | Fullyear-Brother Enterprise Co. | Padlock |
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 |
US10577833B1 (en) * | 2018-08-10 | 2020-03-03 | Schlage Lock Company Llc | Compact bike lock |
US11214987B2 (en) | 2018-08-10 | 2022-01-04 | Schlage Lock Company Llc | Compact bike lock |
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