Patent US4744599A successfully refreshed from Google Patents.
US4744599A
Expired / Lapsed
US
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Two-position playseat coupling
Assignee: Century Products Co
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Filing: 1986-11-07
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Granted: 1988-05-17
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Expires: 2006-11-07
Abstract
Abstract A latch mechanism for securing a detachable seat to a frame such as that used on a child's swing is comprised of a hook depending from a hub on each side of the seat, and a U-shaped collar to receive the hub with a flange to engage the hook. As the hook slides along the flange, the angle of the seat with respect to the frame is varied, and a retractable bolt secures the hook at either of two positions along the flange.
Inventors
- 👤 Mark D. Jankowski
- 👤 Robert L. Quinlan, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:25
CPC Classifications
A; A47; A47D; A47D13/00; A47D13/10; A47D13/105; A47D1/00; A47D1/10; A47D13/02; A47D13/027; A47D9/00; A47D9/016; A47D9/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
87 words
A two-position latch for joining a seat to a frame, comprising a hub on the side of said seat with a hook projecting therefrom; a U-shaped collar on said frame to receive said hub: a flange along said U-shaped collar having a gap therein to receive said hook, said gap dividing said flange into first and second flange segments to engage said hook; and a retractable stop in said frame engageable with said collar to prevent travel of said hook between said first and second flange segments.
Claim 2
Dependent Claim
87 words
A two-position latch for joining a seat to a frame, comprising a hub on the side of said seat with a hook projecting therefrom; a U-shaped collar on said frame to receive said hub: a flange along said U-shaped collar having a gap therein to receive said hook, said gap dividing said flange into first and second flange segments to engage said hook; and a retractable stop in said frame engageable with said collar to prevent travel of said hook between said first and second flange segments.
Claim 3
Dependent Claim
33 words
A two-position latch in accordance with claim 1 in which said hub and said U-shaped collar have arc-shaped contacting surfaces whereby said hook is slidable along said flange by rotation of said hub.
Claim 4
Dependent Claim
19 words
A two-position latch in accordance with claim 1 in which said retractable stop is pivotally mounted to said frame.
Claim 5
Dependent Claim
20 words
A two-position latch in accordance with claim 1 in which said retractable stop is spring-biased into engagement with said collar.
Claim 6
Dependent Claim
33 words
A two-position latch in accordance with claim 1 further comprising first and second fixed stops on said first and second flange segments, respectively, limiting the travel of said hook along said flange segments.
Claim 7
Dependent Claim
34 words
A two-position latch in accordance with claim 1 in which said retractable stop has a sloped surface facing said gap whereby passage of said hook through said gap causes retraction of said retractable stop.
Claim 8
Dependent Claim
89 words
A two-position latch in accordance with claim 1, further comprising: a pair of said hubs, one on either side of said seat, each having a hook projecting therefrom, a pair of said U-shaped collars to receive said hubs, each having first and second flange segments separated by a gap: a pair of said retractable stops extending from first and second levers, respectively pivotally mounted to said frame; and means for joining said first and second levers to effect synchronous pivoting thereof and thereby synchronous retraction of said retractable stops.
Claim 9
Dependent Claim
40 words
A two-position latch in accordance with claim 7 in which said joining means is comprised of first and second rods pivotally mounted to said first and second levers respectively and joined by a pivot link pivotally mounted to said frame.
Claim 10
Dependent Claim
26 words
A two-position latch in accordance with claim 7 in which said first and second levers are spring-biased toward engagement of said retractable stops with said collars.
Claim 11
Dependent Claim
132 words
A two position latch for joining a seat to a frame comprising: a hub on the side of said seat having an arc-shaped edge with a hook projecting therefrom; a collar on said frame having a rim contoured to mate with said arc-shaped edge: a flange along said rim having a gap to receive said hook, said gap dividing said flange into first and second flange segments to engage said hook and to permit travel of said hook therealong upon rotation of said hub in said collar, said flange segments extending from said gap to terminate at first and second stops, respectively; and a bolt extending from a lever pivotally mounted to said frame to block travel of said hook thereby retaining said hook against one of said first and second stops.
Claim 12
Dependent Claim
132 words
A two position latch for joining a seat to a frame comprising: a hub on the side of said seat having an arc-shaped edge with a hook projecting therefrom; a collar on said frame having a rim contoured to mate with said arc-shaped edge: a flange along said rim having a gap to receive said hook, said gap dividing said flange into first and second flange segments to engage said hook and to permit travel of said hook therealong upon rotation of said hub in said collar, said flange segments extending from said gap to terminate at first and second stops, respectively; and a bolt extending from a lever pivotally mounted to said frame to block travel of said hook thereby retaining said hook against one of said first and second stops.
References Cited (Backward Citations)
US1176811A
Cited
US1403552A
Cited
US2784765A
Cited
US3031687A
Cited
US3146985A
Cited
US3261032A
Cited
US3371358A
Cited
US3842450A
Cited
US3883136A
Cited
US4415200A
Cited
US4634177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |