US3720431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch for farm gates
Assignee: Sioux Steel Co
•
Filing: 1971-06-01
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Granted: 1973-03-13
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Expires: 1991-06-01
Abstract
Abstract A latch plate, for mounting on the free end of a farm gate or the like, having a slot for the reception of a link of a section of link chain, with the chain surrounding a gate post, for detachably securing the gate in closed position.
Inventors
- 👤 L Camp
- 👤 N Oliver
- 👤 V Hardie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:27
CPC Classifications
E; E05; E05C; E05C19/00; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3902; Y10T292/00; Y10T292/28; Y10T292/283
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
271 words
A latch plate for a gate having a plurality of horizontally extending structural members and a vertical structural member at the free end of the gate, said latch plate being flat and having one or more mounting edges for fixed securement to one or more of said structural members to position the plate in an upwardly extending direction, said latch plate being formed with a Tshaped slot therein with the free end of the center leg of the slot opening at a free edge portion of the plate, the cross leg of the T-shaped slot comprises two lateral portions of different lengths relative to the zone of connection to the center leg of the slot and the longer portion of the cross leg of the slot extending in an upwardly direction and the shorter portion of the cross leg of the slot extending in a downwardly direction with respect to the zone of connection to the center leg of the slot, the longer and shorter portions of the cross leg of the slot being of such proportional relationship to each other and to the external dimension of the minor axis of a link of a section of link chain to be used therewith so that said link may be moved through the center leg of the slot into the upwardly extending longer portion of the cross leg and then move downwardly into and seated in the shorter portion of the cross leg of the slot with a portion of said link, extending across the center leg of the slot for disengageably securing the link in the cross leg of the slot.
Claim 2
Dependent Claim
271 words
A latch plate for a gate having a plurality of horizontally extending structural members and a vertical structural member at the free end of the gate, said latch plate being flat and having one or more mounting edges for fixed securement to one or more of said structural members to position the plate in an upwardly extending direction, said latch plate being formed with a Tshaped slot therein with the free end of the center leg of the slot opening at a free edge portion of the plate, the cross leg of the T-shaped slot comprises two lateral portions of different lengths relative to the zone of connection to the center leg of the slot and the longer portion of the cross leg of the slot extending in an upwardly direction and the shorter portion of the cross leg of the slot extending in a downwardly direction with respect to the zone of connection to the center leg of the slot, the longer and shorter portions of the cross leg of the slot being of such proportional relationship to each other and to the external dimension of the minor axis of a link of a section of link chain to be used therewith so that said link may be moved through the center leg of the slot into the upwardly extending longer portion of the cross leg and then move downwardly into and seated in the shorter portion of the cross leg of the slot with a portion of said link, extending across the center leg of the slot for disengageably securing the link in the cross leg of the slot.
Claim 3
Dependent Claim
271 words
A latch plate for a gate having a plurality of horizontally extending structural members and a vertical structural member at the free end of the gate, said latch plate being flat and having one or more mounting edges for fixed securement to one or more of said structural members to position the plate in an upwardly extending direction, said latch plate being formed with a T-shaped slot therein with the free end of the center leg of the slot opening at a free edge portion of the plate, the cross leg of the T-shaped slot comprises two lateral portions of different lengths relative to the zone of connection to the center leg of the slot and the longer portion of the cross leg of the slot extending in an upwardly direction and the shorter portion of the cross leg of the slot extending in a downwardly direction with respect to the zone of connection to the center leg of the slot, the longer and shorter portions of the cross leg of the slot being of such proportional relationship to each other and to the external dimension of the minor axis of a link of a section of link chain to be used therewith so that said link may be moved through the center leg of the slot into the upwardly extending longer portion of the cross leg and then move downwardly into and seated in the shorter portion of the cross leg of the slot with a portion of said link, extending across the center leg of the slot for disengageably securing the link in the cross leg of the slot.
Claim 4
Dependent Claim
271 words
A latch plate for a gate having a plurality of horizontally extending structural members and a vertical structural member at the free end of the gate, said latch plate being flat and having one or more mounting edges for fixed securement to one or more of said structural members to position the plate in an upwardly extending direction, said latch plate being formed with a T-shaped slot therein with the free end of the center leg of the slot opening at a free edge portion of the plate, the cross leg of the T-shaped slot comprises two lateral portions of different lengths relative to the zone of connection to the center leg of the slot and the longer portion of the cross leg of the slot extending in an upwardly direction and the shorter portion of the cross leg of the slot extending in a downwardly direction with respect to the zone of connection to the center leg of the slot, the longer and shorter portions of the cross leg of the slot being of such proportional relationship to each other and to the external dimension of the minor axis of a link of a section of link chain to be used therewith so that said link may be moved through the center leg of the slot into the upwardly extending longer portion of the cross leg and then move downwardly into and seated in the shorter portion of the cross leg of the slot with a portion of said link, extending across the center leg of the slot for disengageably securing the link in the cross leg of the slot.
Claim 5
Dependent Claim
40 words
A latch plate as set forth in claim 1, wherein one of the mounting edges of the plate is formed for receiving a link of a link chain for fixedly attaching a portion of the chain relative to the plate.
References Cited (Backward Citations)
CA702094A
Cited
US2908529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |