US3744846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seating construction
Assignee: Flex O Lators Inc
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Filing: 1971-09-16
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Granted: 1973-07-10
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Expires: 1991-09-16
Abstract
Abstract A seating construction consisting of a frame, a generally horizontal seat deck panel, a generally vertical back deck panel using from the rearward edge of the seat panel, a bell-crank lever pivoted in the frame on a horizontal transverse axis adjacent the juncture of the seat and back panels, and having upwardly and forwardly projecting arms, the forward edge of the seat panel being connected to the frame and its rearward edge being connected by resiliently extensible members to the upwardly extending arm of the lever, the lower edge of the back panel being secured to the forwardly extending arm of the lever, and its upper edge being connected to the frame by resiliently extensible members.
Inventors
- 👤 L Tieman
- 👤 T Platt
- 👤 H Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:00
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
165 words
A seating structurE comprising: a. a frame, b. a flexible, generally planar seat deck panel disposed generally horizontally in said frame, c. means connecting the forward edge of said seat panel to said frame, d. a flexible, generally planar back deck panel rising upwardly from the rearward edge of said seat panel, e. means connecting the upper edge of said back panel to said frame, f. a bell crank lever pivoted in said frame on a horizontal transverse axis adjacent the juncture of said seat and back panels and having a pair of arms extending respectively upwardly and forwardly from its pivotal axis, g. means connecting the rearward edge of said seat panel to the upwardly extending arm of said lever, and h. means connecting the lower edge of said back panel to the forwardly extending arm of said lever, at least one of connecting means c, e, g, and h being resiliently yieldable in a direction transverse to the pivotal axis of said lever.
Claim 2
Dependent Claim
165 words
A seating structurE comprising: a. a frame, b. a flexible, generally planar seat deck panel disposed generally horizontally in said frame, c. means connecting the forward edge of said seat panel to said frame, d. a flexible, generally planar back deck panel rising upwardly from the rearward edge of said seat panel, e. means connecting the upper edge of said back panel to said frame, f. a bell crank lever pivoted in said frame on a horizontal transverse axis adjacent the juncture of said seat and back panels and having a pair of arms extending respectively upwardly and forwardly from its pivotal axis, g. means connecting the rearward edge of said seat panel to the upwardly extending arm of said lever, and h. means connecting the lower edge of said back panel to the forwardly extending arm of said lever, at least one of connecting means c, e, g, and h being resiliently yieldable in a direction transverse to the pivotal axis of said lever.
Claim 3
Dependent Claim
42 words
The structure as recited in claim 1 wherein said seat and back panels include resilient members whereby said panels have substantial resilient resistance to flexure transversely of their planes, about any line thereof generally parallel to the pivotal axis of said lever.
Claim 4
Dependent Claim
71 words
The structure as recited in claim 2 wherein said seat and back panels each comprise: a. a pair of parallel resilient side strands, said side strands being disposed respectively at the forward and rearward edges of said seat panel and at the upper and lower edges of said back panel, and b. a series of parallel resilient cross wires extending transversely between and secured at their ends to said side strands.
Claim 5
Dependent Claim
58 words
The structure as recited in claim 3 wherein each of said side strands includes a spring steel core wire relatively heavy as compared to said cross wires, and a sheath of soft, indentable material covering said core wire, each of said cross wires being wrapped tightly about said sheath in indenting relation thereto and then twisted about itself.
Claim 6
Dependent Claim
25 words
The structure as recited in claim 1 wherein connecting means e is resiliently yieldable in a direction transverse to the pivotal axis of said lever.
Claim 7
Dependent Claim
44 words
The structure as recited in claim 1 wherein connecting means e is resiliently yieldable in a direction transverse to the pivotal axis of said lever, and wherein connecting means h is rigidly inextensible in a direction transverse to the pivotal axis of said lever.
Claim 8
Dependent Claim
27 words
The structure as recited in claim 6 wherein connecting means c and g are rigidly inextensible in a direction transverse to the pivotal axis of said lever.
Claim 9
Dependent Claim
31 words
The structure as recited in claim 6 wherein connecting means c is rigidly inextensible, and connecting means g is resiliently yieldable, in directions transverse to the pivotal axis of said lever.
Claim 10
Dependent Claim
42 words
The structure as recited in claim 8 wherein said seat panel includes resilient members imparting to said panel a substantial yieldable resistance to flexuure thereof transversely of its plane about any line thereof generally parallel to the pivotal axis of said lever.
Claim 11
Dependent Claim
23 words
The structure as recited in claim 8 wherein connecting means g has a lesser total resistance to resilient extension than connecting means e.
References Cited (Backward Citations)
US1768383A
Cited
US2300422A
Cited
US2586433A
Cited
US2532884A
Cited
US2832398A
Cited
US3030147A
Cited
US3462196A
Cited
US3589763A
Cited
US3610688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |