Patent US3711152A successfully refreshed from Google Patents.
US3711152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Health chair
Assignee: CASEY SIRPAK Inc
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Filing: 1971-08-11
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Granted: 1973-01-16
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Expires: 1991-08-11
Abstract
Abstract A chair having a contoured portion defining a back rest and a seat. The seat has a central recess extending inwardly from its forward edge of a size and shape to accommodate the upper legs of a person. The contoured portion of the chair is pivotally suspended upon a support member which in turn is supported on a base. The contoured portion is adjustable to different heights with respect to the base. The contoured portion preferably includes a frame and cushions supported by the frame. The chair may be provided with arm rests and lower leg rests. Preferably, the contoured portion is pivotally suspended at its arm rests upon the support member. The contoured portion and the support member are adapted to swivel with respect to the base and means are provided to selectively prevent such swiveling. The chair is particularly advantageous as a marital chair and for persons having stiff or ailing backs.
Inventors
- 👤 C Sirpak
- 👤 Y Pretorius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:54
CPC Classifications
A; A47; A47C; A47C15/00; A47C15/004; A47C1/00; A47C1/02; A47C1/031; A47C1/034; A47C1/0342; A47C7/00; A47C7/50; A47C7/503; A47C9/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
144 words
In an easy chair or the like, a contoured portion defining a back rest and a seat extending forwardly from the back rest a sufficient distance to support the posterior and upper legs of a person occupying the chair, said seat having a central recess extending inwardly from its forward edge, said recess being of sufficient depth and of sufficient width through its entire depth to accommodate the upper legs of a person facing toward or away from said chair, said seat including upper leg supporting portions on opposite sides of said recess, arm rests on said contoured portion, a support base, means mounted on said support base and pivotally connected to said arm rests for supporting said contoured portion for swinging movement with respect to said support means in substantially a vertical plane, and means for adjusting the height of said contoured portion.
Claim 2
Dependent Claim
144 words
In an easy chair or the like, a contoured portion defining a back rest and a seat extending forwardly from the back rest a sufficient distance to support the posterior and upper legs of a person occupying the chair, said seat having a central recess extending inwardly from its forward edge, said recess being of sufficient depth and of sufficient width through its entire depth to accommodate the upper legs of a person facing toward or away from said chair, said seat including upper leg supporting portions on opposite sides of said recess, arm rests on said contoured portion, a support base, means mounted on said support base and pivotally connected to said arm rests for supporting said contoured portion for swinging movement with respect to said support means in substantially a vertical plane, and means for adjusting the height of said contoured portion.
Claim 3
Dependent Claim
22 words
A chair as claimed in claim 1 further comprising lower leg rests extending forwardly and downwardly from said upper leg supporting portions.
Claim 4
Dependent Claim
25 words
A chair as claimed in claim 2 wherein said lower leg rests are pivotally connected to said contoured portion adjacent said upper leg supporting portions.
Claim 5
Dependent Claim
44 words
A chair as claimed in claim 1 wherein said contoured portion includes a tubular frame defining said back rest and said seat including said recess, and a cushion supported by said frame and having a corresponding recess overlying the recess defined by said frame.
Claim 6
Dependent Claim
28 words
A chair as claimed in claim 1 wherein said support means is pivotally connected to said support base for rotation with respect thereto in substantially a horizontal plane.
Claim 7
Dependent Claim
23 words
A chair as claimed in claim 5 including means for selectively preventing rotation of said support means with respect to said support base.
Claim 8
Dependent Claim
45 words
A chair as claimed in claim 1 wherein said support means is a generally U-shaped member having a base and two legs, said base portion being mounted on said support base and each of said legs pivotally supporting an arm rest on said contoured portion.
Claim 9
Dependent Claim
94 words
A chair as claimed in claim 1 wherein said contoured portion includes a tubular frame defining said back rest, seat, arm rests, and lower leg rests, the portions of said frame defining said lower leg rests being pivotally connected to said seat defining portion on either side of said recess, a cushion supported by the back rest defining portions and seat defining portions of said frame and having a corresponding recess overlying the recess defined by said frame, cushions on each of said arm rests, and cushions on each of said lower leg rests.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |