Patent US3840268A successfully refreshed from Google Patents.
US3840268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle seats and to mechanism therefor
Assignee: TURNER H WILLENHALL Ltd GB
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Filing: 1973-04-03
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Granted: 1974-10-08
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Expires: 1993-04-03
Abstract
Abstract The invention provides a mechanism for holding a car seat backrest at any of a range of positions of inclination relative to a seat cushion, using sets of teeth on the back-rest and cushion frames, a carrier controlling movement of the back-rest teeth towards and away from the cushion teeth, and a rocking cam for moving the carrier in either direction, the cam being pivoted between its ends and fast with an operating handle.
Inventors
- 👤 J Johndrow
- 👤 H Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:21
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/235; B60N2/2356; B60N2/2362; B60N2/236; A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/025; B60N2/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
166 words
A seat mechanism comprising a first part provided with a set of teeth fixed thereon, a second part provided with a meshing set of teeth, which has limited sliding movement relative to the first part to cause the two sets of teeth to be engaged and disengaged, and which is mounted relative to the first part to permit relative pivoting of the two parts when the sets of teeth are out of engagement, a carrier pivoted to the first part, and coupled to the second part for pivoting movement of the carrier relative to the first part during said sliding movement of the second part, and a cam which is pivoted to the first part and has a two-way driving engagement with the carrier to cause the carrier to slide the second part into teeth-engaging relating with the first part upon rotation of the cam in one direction, and out of teeth-engaging relation with the first part upon rotation of the cam in the other direction.
Claim 2
Dependent Claim
166 words
A seat mechanism comprising a first part provided with a set of teeth fixed thereon, a second part provided with a meshing set of teeth, which has limited sliding movement relative to the first part to cause the two sets of teeth to be engaged and disengaged, and which is mounted relative to the first part to permit relative pivoting of the two parts when the sets of teeth are out of engagement, a carrier pivoted to the first part, and coupled to the second part for pivoting movement of the carrier relative to the first part during said sliding movement of the second part, and a cam which is pivoted to the first part and has a two-way driving engagement with the carrier to cause the carrier to slide the second part into teeth-engaging relating with the first part upon rotation of the cam in one direction, and out of teeth-engaging relation with the first part upon rotation of the cam in the other direction.
Claim 3
Dependent Claim
32 words
A mechanism as claimed in claim 1, wherein the cam is fast with an operating handle and is spring returned to a position in which the two sets of teeth are engaged.
Claim 4
Dependent Claim
42 words
A seat mechanism as claimed in claim 1, wherein said second part is pivoted to the back-rest portion of a seat and catch means are provided for selectively securing and releasing the second part and back-rest portion from or for movement together.
Claim 5
Dependent Claim
26 words
A seat mechanism as claimed in claim 3, wherein the catch means comprises a pawl pivoted to the back-rest portion and engageable with said second part.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |