Patent US3867905A successfully refreshed from Google Patents.
US3867905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canine security leash
Assignee: Individual
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Filing: 1973-08-07
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Granted: 1975-02-25
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Expires: 1993-08-07
Abstract
Abstract The leash comprises a chain formed of a plurality of links and having a plastic-sheathed loop at one end of fixed size and adapted to be grasped by an individual. The opposite end of the chain is secured within a lock housing. The lock housing also has a passageway for slidably receiving a portion of the chain intermediate its ends whereby a variably sized loop is formed at the opposite end of the leash. The lock includes a locking element for locking the intermediate portion of the chain within the passageway of the lock housing thereby adapting the latter loop for releasable locking engagement about the neck of a dog. To tether a dog to a fixture, the leash is disposed about the fixture and the lock end is inserted through the fixed loop and pulled taut. The variable sized loop is then fitted about the dog''s neck and the loop is sufficiently tightened to secure the dog to the leash. A key is inserted into the lock housing and the locking element locks the chain to the lock housing. The dog is thus secured to the leash and the leash is secured to the fixture.
Inventors
- 👤 Jr Richard W Vail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:28
CPC Classifications
A; A01; A01K; A01K27/00; A01K27/005
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
206 words
A canine security leash comprising a tether having a predetermined length, means forming and maintaining a loop at one end of said tether thereby providing a handle for said leash, a lock for preventing unauthorized removal of the canine from the leash including a lock housing, means for securing said lock housing to the opposite end of said tether, said lock housing having a passageway for slidably receiving a portion of said tether intermediate the end thereof secured to said lock housing and its opposite end thereby forming a second loop of variable size at the opposite end of said leash, the opposite end portions of the tether forming said second loop being coupled directly to said lock with the size of said second loop being determined by the distance along the tether between the intermediate tether portion in said passageway and said opposite tether end, said lock housing carrying a locking element releasably engageable with said tether in said passageway to lock said tether against movement in said passageway, thereby adapting said second loop for releasable locking engagement about the neck of a canine, said locking element when engaged with said tether in said passageway preventing unauthorized change in the size of said second loop.
Claim 2
Dependent Claim
206 words
A canine security leash comprising a tether having a predetermined length, means forming and maintaining a loop at one end of said tether thereby providing a handle for said leash, a lock for preventing unauthorized removal of the canine from the leash including a lock housing, means for securing said lock housing to the opposite end of said tether, said lock housing having a passageway for slidably receiving a portion of said tether intermediate the end thereof secured to said lock housing and its opposite end thereby forming a second loop of variable size at the opposite end of said leash, the opposite end portions of the tether forming said second loop being coupled directly to said lock with the size of said second loop being determined by the distance along the tether between the intermediate tether portion in said passageway and said opposite tether end, said lock housing carrying a locking element releasably engageable with said tether in said passageway to lock said tether against movement in said passageway, thereby adapting said second loop for releasable locking engagement about the neck of a canine, said locking element when engaged with said tether in said passageway preventing unauthorized change in the size of said second loop.
Claim 3
Dependent Claim
44 words
A leash according to claim 1 wherein said tether comprises a chain formed of a plurality of links, said locking element including a projection engageable within a selected one of said chain links to lock said chain in said passageway against substantial sliding movement.
Claim 4
Dependent Claim
31 words
A leash according to claim 1 wherein said locking element includes a projection frictionally engageable with the tether in said passageway to lock said tether in said passageway against sliding movement.
Claim 5
Dependent Claim
56 words
A leash according to claim 1 wherein said tether comprises a chain formed of a plurality of links, said lock housing having an elongated recess and an opening into said recess, a pin in said recess engaging through a link of said chain receivable through said opening to secure said lock housing to said chain end.
Claim 6
Dependent Claim
31 words
A leash according to claim 1 wherein said tether comprises a chain formed of a plurality of links, the chain forming said first mentioned loop having a covering of plastic tubing.
Claim 7
Dependent Claim
28 words
A canine security leash according to claim 1 including a key cooperable with said lock to remove said locking element from engagement with said tether in said passageway.
Claim 8
Dependent Claim
175 words
A canine security leash comprising a tether having a predetermined length, means forming and maintaining a loop at one end of said tether thereby providing a handle for said leash, a lock housing, means for securing said lock housing to the opposite end of said tether, said lock housing having a passageway for slidably receiving a portion of said tether intermediate the end thereof secured to said lock housing and its opposite end thereby forming a second loop of variable size at the opposite end of said leash, said lock housing carrying a locking element releasably engageable with said tether in said passageway to lock said tether against movement in said passageway thereby adapting said second loop for releasable locking engagement about the neck of a dog, said lock housing comprising a metal block having a recess, a lock disposed in said recess and carrying said locking element, said passageway being defined by a recess in said block, a cover plate, and means for securing said cover plate to said block to close said recesses.
Claim 9
Dependent Claim
175 words
A canine security leash comprising a tether having a predetermined length, means forming and maintaining a loop at one end of said tether thereby providing a handle for said leash, a lock housing, means for securing said lock housing to the opposite end of said tether, said lock housing having a passageway for slidably receiving a portion of said tether intermediate the end thereof secured to said lock housing and its opposite end thereby forming a second loop of variable size at the opposite end of said leash, said lock housing carrying a locking element releasably engageable with said tether in said passageway to lock said tether against movement in said passageway thereby adapting said second loop for releasable locking engagement about the neck of a dog, said lock housing comprising a metal block having a recess, a lock disposed in said recess and carrying said locking element, said passageway being defined by a recess in said block, a cover plate, and means for securing said cover plate to said block to close said recesses.
Claim 10
Dependent Claim
65 words
A leash according to claim 7 wherein said tether comprises a chain formed of a plurality of links, said lock housing having an elongated recess and an opening into said recess, a pin in said recess engaging through a link of said chain receivable through said opening to secure said lock housing to said chain end, said cover plate also closing the latter mentioned recess.
Claim 11
Dependent Claim
202 words
A canine security leash comprising a chain formed of a plurality of links and having a predetermined length, means forming and maintaining a loop at one end of said chain thereby providing a handle for said leash, a lock housing, means for securing said lock housing to a portion of said chain adjacent its opposite end, said lock housing having a passageway for slidably receiving another portion of said chain adjacent said opposite end thereby forming a second loop of variable size at the opposite end of said leash, said lock housing carrying a locking element releasably engageable with said chain in said passageway to lock said chain against movement in said passageway thereby adapting said second loop for releasable locking engagement about the neck of a dog, said locking element including a projection engageable within a selected one of said chain links to lock said chain in said passageway against substantial sliding movement, said lock housing comprising a metal block having a recess, a lock disposed in said recess and carrying said locking element, said passageway being defined by a recess in said block, a cover plate, and means for securing said cover plate to said block to close said recesses.
Claim 12
Dependent Claim
202 words
A canine security leash comprising a chain formed of a plurality of links and having a predetermined length, means forming and maintaining a loop at one end of said chain thereby providing a handle for said leash, a lock housing, means for securing said lock housing to a portion of said chain adjacent its opposite end, said lock housing having a passageway for slidably receiving another portion of said chain adjacent said opposite end thereby forming a second loop of variable size at the opposite end of said leash, said lock housing carrying a locking element releasably engageable with said chain in said passageway to lock said chain against movement in said passageway thereby adapting said second loop for releasable locking engagement about the neck of a dog, said locking element including a projection engageable within a selected one of said chain links to lock said chain in said passageway against substantial sliding movement, said lock housing comprising a metal block having a recess, a lock disposed in said recess and carrying said locking element, said passageway being defined by a recess in said block, a cover plate, and means for securing said cover plate to said block to close said recesses.
References Cited (Backward Citations)
GB838093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |