Patent US3585823A successfully refreshed from Google Patents.
US3585823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain lock
Assignee: Individual
•
Filing: 1969-07-16
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Granted: 1971-06-22
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Expires: 1989-07-16
Abstract
Abstract A chain lock of the type embodying an encircling chain and a lock housing secured at one end of said chain, the lock housing including a chain passage and a lock tumbler rotatable in the housing, so as to throw a locking bolt through the chain passage and the chain supported in the passage. The housing may also include an additional leash end plug aperture and an additional locking bolt, so as to lock an additional chain into the housing.
Inventors
- 👤 Alice R Nagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:02
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/003; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/437; Y10T70/446; Y10T70/452; Y10T70/459; Y10T70/483
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
249 words
A chain lock of the type including an encircling chain comprising: A. a first lock housing having a chain passage extending completely therethrough and a chain leash plug housing extending from one end of said housing and terminating therewithin and including: i. a lock tumbler with a key aperture rotatably supported in said lock housing; ii. a chain locking bolt connected to said tumbler and extensible into said chain passage, as said tumbler is rotated; iii. a plug locking bolt connected to said tumbler and extensible reciprocably into said chain leash plug housing as said tumbler is rotated; B. a linked chain connected at one end to said lock housing and extensible through said chain locking passage; and C. a key insertable into said lock tumbler, so as to rotate said tumbler; D. a second lock housing having two chain passages extending completely through either side and including: i. a lock tumbler with key aperture rotatably supported therein; ii. a pair of locking bolts connected to said tumbler and extensible into said chain passages, as said tumbler is rotated; iii. a linked chain extensible through said chain passages and having at one end a locking plug complementally engageable with said chain leash plug housing and said plug locking bolt in said first housing and at its other end having a guide member; said plug having a substantially annular reduced diameter portion providing locking clearance for said plug locking bolt; and E. a key insertable in said second lock tumbler.
Claim 2
Dependent Claim
249 words
A chain lock of the type including an encircling chain comprising: A. a first lock housing having a chain passage extending completely therethrough and a chain leash plug housing extending from one end of said housing and terminating therewithin and including: i. a lock tumbler with a key aperture rotatably supported in said lock housing; ii. a chain locking bolt connected to said tumbler and extensible into said chain passage, as said tumbler is rotated; iii. a plug locking bolt connected to said tumbler and extensible reciprocably into said chain leash plug housing as said tumbler is rotated; B. a linked chain connected at one end to said lock housing and extensible through said chain locking passage; and C. a key insertable into said lock tumbler, so as to rotate said tumbler; D. a second lock housing having two chain passages extending completely through either side and including: i. a lock tumbler with key aperture rotatably supported therein; ii. a pair of locking bolts connected to said tumbler and extensible into said chain passages, as said tumbler is rotated; iii. a linked chain extensible through said chain passages and having at one end a locking plug complementally engageable with said chain leash plug housing and said plug locking bolt in said first housing and at its other end having a guide member; said plug having a substantially annular reduced diameter portion providing locking clearance for said plug locking bolt; and E. a key insertable in said second lock tumbler.
Claim 3
Dependent Claim
49 words
A chain lock of the type including an encircling chain as in claim 1, said lock tumblers each having two locking pins extending axially thereof and said locking bolts including recesses complementally engageable with said locking pins so as to reciprocate said bolts upon rotating of said lock tumblers.
Claim 4
Dependent Claim
38 words
A chain lock as in claim 2, including compression spring means interspersed between the inner ends of said locking bolts and said housings so as to urge said bolts respectively through said chain passage and said plug aperture.
References Cited (Backward Citations)
US507948A
Cited
US1419469A
Cited
US1779716A
Cited
US2125052A
Cited
US2465008A
Cited
US3117437A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |