Patent US3728879A successfully refreshed from Google Patents.
US3728879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heavy cable shackle padlock
Assignee: Stanley Security Solutions Inc
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Filing: 1971-02-08
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Granted: 1973-04-24
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Expires: 1991-02-08
Abstract
Abstract A padlock having a heavy cable shackle of selected length, constructed to provide good lock security. Identical long cable end pieces are received in parallel bores in a pad lock case and extend into a lock cavity formed by three overlapping parallel bores. The shackle-heel end piece is rotatably fixed in its bore by a heel plate engaged in a retaining groove of the piece and secured against the cavity end wall by a taper-head screw on the axis of one of the cavity bores. The shackle toe end piece is releasably dead-locked in its bore by a toe tumbler or bolt engaged in a retaining groove of the piece and slidably held against the cavity end wall by a retaining plate, which carries a throw assembly rotatable on the axis of the central cavity bore. The retaining plate has one end engaged in a supporting groove in the case and is supported at the other end, and held in the groove, by a plug rotatably locked in one cavity bore and held against removal by an 8-shaped key-actuated lock core received in the other two cavity bores.
Inventors
- 👤 W Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:32
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/003; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/437; Y10T70/446; Y10T70/452; Y10T70/483; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7638; Y10T70/765
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
259 words
A cable shackle padlock, comprising a heavy cable shackle having a heel piece and a toe piece attached to its ends, each having a prong for insertion in a bore in a lock case and having a retaining groove in position to be exposed for engagement within such case, a lock case having bores for the reception of said prongs and having side walls and an end wall defining a lock chamber intersecting said bores, a heel plate mounted against said end wall in edgewise engagement with the retaining groove of said heel piece, a bolt in said chamer and slidable transversely of the toe-piecereceiving bore into endwise engagement in the retaining groove of the toe piece prong to releasably lock the toe piece in the case, a plate support shoulder formed in the case, a retaining plate supporting the bolt and engaged endwise toward said toe piece bore in supported engagement with said plate support shoulder, and a plug having a seated position in a portion of said chamber at the opposite end of said retaining plate, having an end surface positioned to support said opposite plate end, and having an end portion extending across the end of the retaining plate to block it against movement out of engagement with said plate support shoulder, said plug being interlocked with the case and being shaped to define therewith a lock core-receiving opening for the reception of a lock core therein, and a throw member mounted in said retaining plate and operable by said lock core to retract said bolt.
Claim 2
Dependent Claim
259 words
A cable shackle padlock, comprising a heavy cable shackle having a heel piece and a toe piece attached to its ends, each having a prong for insertion in a bore in a lock case and having a retaining groove in position to be exposed for engagement within such case, a lock case having bores for the reception of said prongs and having side walls and an end wall defining a lock chamber intersecting said bores, a heel plate mounted against said end wall in edgewise engagement with the retaining groove of said heel piece, a bolt in said chamer and slidable transversely of the toe-piecereceiving bore into endwise engagement in the retaining groove of the toe piece prong to releasably lock the toe piece in the case, a plate support shoulder formed in the case, a retaining plate supporting the bolt and engaged endwise toward said toe piece bore in supported engagement with said plate support shoulder, and a plug having a seated position in a portion of said chamber at the opposite end of said retaining plate, having an end surface positioned to support said opposite plate end, and having an end portion extending across the end of the retaining plate to block it against movement out of engagement with said plate support shoulder, said plug being interlocked with the case and being shaped to define therewith a lock core-receiving opening for the reception of a lock core therein, and a throw member mounted in said retaining plate and operable by said lock core to retract said bolt.
Claim 3
Dependent Claim
34 words
A cable shackle padlock as in claim 1 in which said prong-receiving bores are parallel bores intersecting the end wall of the chamber and said heel plate is mounted flat against said end wall.
Claim 4
Dependent Claim
50 words
A cable shackle padlock as in claim 1 in which said chamber comprises three overlapping bores, and said heel plate is positioned at the inner end of an outer one of saiD bores and retained by a screw aligned with that bore, and the plug is mounted in that bore.
Claim 5
Dependent Claim
48 words
A cable shackle padlock as in claim 1 in which said plate support shoulder is formed by a groove in the case wall into which one end of the plate is engaged for support of such end, said plug end surface supporting the opposite end of the plate.
Claim 6
Dependent Claim
106 words
A cable shackle padlock as in claim 1 in which said case and plug are so shaped that the plug is received in the case by relative axial movement thereof, and have bayonet-locking lugs thereon in position to be interengaged by rotation of the plug in its axially inserted position in the case, the plug having an edge portion which projects into said lock core-receiving opening when the plug is rotationally oriented with said lugs in disengaged relation, and a lock core received in said opening and blocking movement of said edge portion into said opening and thereby blocking said plug from disengagement from said case.
Claim 7
Dependent Claim
72 words
A cable shackle padlock as in claim 1 in which said lock case comprises a thick end portion between the end wall of the chamber and the end of the case, and said prongs and prong receiving bores interfit in said thick end portion over an axial length in excess of the diameter of the prongs, to thereby resist lateral forces on the cable and prongs and isolate the lock mechanism therefrom.
Claim 8
Dependent Claim
174 words
A cable shackle padlock, comprising a heavy cable shackle having a heel piece and a toe piece attached to its ends, each having a heavy prong for insertion in a bore in a lock case and having a retaining groove in position to be exposed for engagement within the case, a lock case having a lock chamber therein defined by side walls and an end wall of thick section, a pair of parallel bores through said thick end wall of said chamber for the reception of the prongs of said heel piece and toe piece, said prongs extending in interfitting relation with said end wall through a long bore length in excess of their diameter, whereby lateral forces on said cable end pieces are transmitted to the thick section of the case and isolated from the lock mechanism within the lock chamber, and lock mechanism within the chamber comprising retaining bolts mounted against said thick end wall and engaged endwise in the retaining grooves of the prongs to lock the same in said bores.
Claim 9
Dependent Claim
174 words
A cable shackle padlock, comprising a heavy cable shackle having a heel piece and a toe piece attached to its ends, each having a heavy prong for insertion in a bore in a lock case and having a retaining groove in position to be exposed for engagement within the case, a lock case having a lock chamber therein defined by side walls and an end wall of thick section, a pair of parallel bores through said thick end wall of said chamber for the reception of the prongs of said heel piece and toe piece, said prongs extending in interfitting relation with said end wall through a long bore length in excess of their diameter, whereby lateral forces on said cable end pieces are transmitted to the thick section of the case and isolated from the lock mechanism within the lock chamber, and lock mechanism within the chamber comprising retaining bolts mounted against said thick end wall and engaged endwise in the retaining grooves of the prongs to lock the same in said bores.
Claim 10
Dependent Claim
51 words
A cable shackle padlock as set forth in claim 7 with the addition of shoulders on said heel and toe pieces in position to engage the outer face of said thick portion of the case and thereby prevent inward thrust forces on said pieces from being transmitted to said lock mechanism.
Claim 11
Dependent Claim
41 words
A cable shackle padlock as set forth in claim 6 with the addition of shoulders on said heel and toe pieces in position to engage the outer face of said thick section when the prongs thereof are locked in the case.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |