US3767190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivoting chair with pivotally displaceable seat and back
Assignee: Individual
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Filing: 1971-04-08
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Granted: 1973-10-23
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Expires: 1991-04-08
Abstract
Abstract A device in the form of a chair having seat and back sections which pivot on a base in a toggle action. The seat and back sections are pivotally interconnected at their juncture and are pivotally connected to the base member at respective spaced pivot positions. The seat section can shift to slidably displace its pivot position, thereby providing freedom of toggle movement. Further embodiments include an extendable footrest and spring loaded arms.
Inventors
- 👤 W Biggerstaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:29
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/031; A47C1/034; A47C4/00; A47C4/04; A47C4/18; A47C4/20; A47C4/24; A47C4/26; A63; A63B; A63B2208/00; A63B2208/02; A63B2208/0228; A63B2208/0233; A63B2210/00; A63B2210/50; A63B23/00; A63B23/02; A63B23/0205; A63B23/0211
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
An exercising device, comprising: a base member; a seat section; a back section; means for pivotally interconnecting said seat and back sections at their junction; means for pivotally connecting said seat and back sections to said base member at respective first and second pivot positions on said base member; and shift means for slidably displacing at least one of said pivot positions on said base member for freedom of swinging movement of said seat and back sections on their pivotal interconnection and on their pivotal connections with said base member; said base member comprising a vertically rising member curved along its upper extent to a horizontal direction and carrying said slidably displaceable pivot position on said curved upper extent.
Claim 2
Dependent Claim
119 words
An exercising device, comprising: a base member; a seat section; a back section; means for pivotally interconnecting said seat and back sections at their junction; means for pivotally connecting said seat and back sections to said base member at respective first and second pivot positions on said base member; and shift means for slidably displacing at least one of said pivot positions on said base member for freedom of swinging movement of said seat and back sections on their pivotal interconnection and on their pivotal connections with said base member; said base member comprising a vertically rising member curved along its upper extent to a horizontal direction and carrying said slidably displaceable pivot position on said curved upper extent.
Claim 3
Dependent Claim
27 words
The invention according to claim 1 in which said curved upper extent is channeled and said displaceable pivot is carried by a roller slidable within said channel.
Claim 4
Dependent Claim
38 words
The invention acccording to claim 2 in which the rear end of said channel is formed with a detent section for said roller to retain said seat in an extreme rearward position when said back section is upright.
Claim 5
Dependent Claim
140 words
An exercising device, comprising: a base member; a seat section; a back section; means for pivotally interconnecting said seat and back sections at their junction; means for pivotally connecting said seat and back sections to said base member at respective first and second pivot positions on said base member; and shift means for slidably displacing at least one of said pivot positions on said base member for freedom of swinging movement of said seat and back sections on their pivotal interconnection and on their pivotal connections with said base member; said base member comprising forward and rear pairs of oppositely disposed legs, the legs of each said pair crossing, said rear legs supporting said seat on their upper extent, the upper extent of said rear legs being curved to a forward horizontal direction and carrying said slidably displaceable pivot position.
Claim 6
Dependent Claim
140 words
An exercising device, comprising: a base member; a seat section; a back section; means for pivotally interconnecting said seat and back sections at their junction; means for pivotally connecting said seat and back sections to said base member at respective first and second pivot positions on said base member; and shift means for slidably displacing at least one of said pivot positions on said base member for freedom of swinging movement of said seat and back sections on their pivotal interconnection and on their pivotal connections with said base member; said base member comprising forward and rear pairs of oppositely disposed legs, the legs of each said pair crossing, said rear legs supporting said seat on their upper extent, the upper extent of said rear legs being curved to a forward horizontal direction and carrying said slidably displaceable pivot position.
Claim 7
Dependent Claim
138 words
An exercising device, comprising: a base member; a seat section; a back section; means for pivotally interconnecting said seat and back sections at their junction; means for pivotally connecting said seat and back sections to said base member at respective first and second pivot positions on said base member; shift means for slidably displacing at least one of said pivot positions on said base member for freedom of swinging movement of said seat and back sections on their pivotal interconnection and on tHeir pivotal connections with said base member; a pair of oppositely disposed arm members connected to the upper end of said base member and extending horizontally forward therefrom; and means for spring loading said arm members on said base member for movement of said arm members toward each other against the force of said spring load.
Claim 8
Dependent Claim
138 words
An exercising device, comprising: a base member; a seat section; a back section; means for pivotally interconnecting said seat and back sections at their junction; means for pivotally connecting said seat and back sections to said base member at respective first and second pivot positions on said base member; shift means for slidably displacing at least one of said pivot positions on said base member for freedom of swinging movement of said seat and back sections on their pivotal interconnection and on tHeir pivotal connections with said base member; a pair of oppositely disposed arm members connected to the upper end of said base member and extending horizontally forward therefrom; and means for spring loading said arm members on said base member for movement of said arm members toward each other against the force of said spring load.
Claim 9
Dependent Claim
123 words
An exercising device, comprising: a base member; a seat section; a back section; means for pivotally interconnecting said seat and back sections at their junction; means for pivotally connecting said seat and back sections to said base member at respective spaced first and second pivot positions on said base member for freedom of swinging movement of said seat and back sections on their pivotal interconnection and on their pivotal connections with said base member; a pair of oppositely disposed arm members connected to the upper end of said base member and extending horizontally forward therefrom; and means for spring loading said arm members on said base member for movement of said arm members toward each other against the force of said spring load.
Claim 10
Dependent Claim
123 words
An exercising device, comprising: a base member; a seat section; a back section; means for pivotally interconnecting said seat and back sections at their junction; means for pivotally connecting said seat and back sections to said base member at respective spaced first and second pivot positions on said base member for freedom of swinging movement of said seat and back sections on their pivotal interconnection and on their pivotal connections with said base member; a pair of oppositely disposed arm members connected to the upper end of said base member and extending horizontally forward therefrom; and means for spring loading said arm members on said base member for movement of said arm members toward each other against the force of said spring load.
Claim 11
Dependent Claim
22 words
The invention according to claim 6 in which said arm members are connected to said base member at said second pivot position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |