Patent US3800570A successfully refreshed from Google Patents.
US3800570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking mechanism
Assignee: Individual
•
Filing: 1972-04-06
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Granted: 1974-04-02
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Expires: 1992-04-06
Abstract
Abstract A U-shaped shackle, preferably of hardened steel, is provided with a movable bolt adapted to extend between the legs of the shackle and lock therewith by means of a padlock. The ends of the legs are formed with slot openings in register with one another to receive the bolt. The bolt is formed with a shoulder at one end and an opening near the opposite end. The padlock hasp is passed through the opening at the opposite end of the bolt to lock the bolt across the legs of the shackle. Rigid walls are formed about the slot on the end of one leg of the shackle to partially enclose the end of the bolt which is formed with the opening to protect the padlock against being forced, cut or otherwise tampered with. The lock is useful particularly as an anti-theft device for bicycles.
Inventors
- 👤 S Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:45
CPC Classifications
E; E05; E05B; E05B71/00; B; B62; B62H; B62H5/00; B62H5/14; B62H5/145; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/402; Y10T70/409; Y10T70/413; Y10T70/487; Y10T70/493
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
A locking apparatus for use with a standard padlock having a hasp comprising in combination, a. a shackle having a pair of legs, and b. a bolt adapted to span said legs, c. one end of said bolt lockably engaging one of said legs and the opposite end of said bolt being formed with an opening adapted to receive said hasp, d. the other of said shackle legs being formed with an integral and deeply recessed socket having an opening therein to receive said opposite end of said bolt, e. said socket dimensioned to snugly accommodate said padlock when said padlock is locked onto said bolt whereby said hasp is rendered effectively inaccessible, and, f. stop means on said bolt for limiting movement of said bolt through said shackle leg.
Claim 2
Dependent Claim
130 words
A locking apparatus for use with a standard padlock having a hasp comprising in combination, a. a shackle having a pair of legs, and b. a bolt adapted to span said legs, c. one end of said bolt lockably engaging one of said legs and the opposite end of said bolt being formed with an opening adapted to receive said hasp, d. the other of said shackle legs being formed with an integral and deeply recessed socket having an opening therein to receive said opposite end of said bolt, e. said socket dimensioned to snugly accommodate said padlock when said padlock is locked onto said bolt whereby said hasp is rendered effectively inaccessible, and, f. stop means on said bolt for limiting movement of said bolt through said shackle leg.
Claim 3
Dependent Claim
19 words
A locking apparatus according to claim 1 wherein said shackle and bolt are fabricated from hard, rigid metal stock.
Claim 4
Dependent Claim
32 words
A locking apparatus according to claim 1 wherein said shackle is U-shaped and said socket includes a pair of slightly spaced and opposite facing channel sections fixed perpendicularly to said other leg.
Claim 5
Dependent Claim
41 words
A locking apparatus according to claim 3 wherein said one shackle leg is formed with an opening to receive said bolt and said one end of said bolt is formed with a shoulder stop for limiting movement of said bolt therethrough.
Claim 6
Dependent Claim
23 words
A locking apparatus according to claim 1 wherein said means includes a boss on said bolt adapted to bear against said other leg.
Claim 7
Dependent Claim
18 words
A locking apparatus according to claim 1 wherein said shackle and bolt are covered by a resilient stratum.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |