US3878840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthopedic chair
Assignee: Individual
•
Filing: 1973-08-22
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Granted: 1975-04-22
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Expires: 1993-08-22
Abstract
Abstract An orthopedic chair adapted to place a user into a fetal position in which his spinal column is intimately and substantially entirely supported by a curved support surface conforming thereto. The user sits on a seat and at the medial rear portion of the seat there extends an upright support with the curved support surface. The feet of the user rest on a foot support attached to the seat itself or to legs for the seat while the head of the user is supported by a head rest including a chin support. Arm rests are attached to the upright support and pass beneath the armpits of the user.
Inventors
- 👤 Jean Esbelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:18
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61G; A61G15/00; A61G15/007
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
81 words
An orthopedic chair comprising means including a seat for supporting a user in a fetal position with his legs folded against his chest, and an upright support on said seat provided with a concave curved surface for being in intimate contact with and supporting the spinaL column of the user substantially over the length thereof with the user in said fetal position, said upright support having a narrow width such that only the spinal column of the user is supported thereby.
Claim 2
Dependent Claim
81 words
An orthopedic chair comprising means including a seat for supporting a user in a fetal position with his legs folded against his chest, and an upright support on said seat provided with a concave curved surface for being in intimate contact with and supporting the spinaL column of the user substantially over the length thereof with the user in said fetal position, said upright support having a narrow width such that only the spinal column of the user is supported thereby.
Claim 3
Dependent Claim
81 words
An orthopedic chair comprising means including a seat for supporting a user in a fetal position with his legs folded against his chest, and an upright support on said seat provided with a concave curved surface for being in intimate contact with and supporting the spinaL column of the user substantially over the length thereof with the user in said fetal position, said upright support having a narrow width such that only the spinal column of the user is supported thereby.
Claim 4
Dependent Claim
81 words
An orthopedic chair comprising means including a seat for supporting a user in a fetal position with his legs folded against his chest, and an upright support on said seat provided with a concave curved surface for being in intimate contact with and supporting the spinaL column of the user substantially over the length thereof with the user in said fetal position, said upright support having a narrow width such that only the spinal column of the user is supported thereby.
Claim 5
Dependent Claim
45 words
A chair as claimed in claim 1 wherein said means for supporting the user in the fetal position further comprises a foot rest on said seat, an arm support means attached to the upright support, and a head rest means attached to the upright support.
Claim 6
Dependent Claim
52 words
A chair as claimed in claim 2 wherein said curved surface is a smooth curve which has an offset distance of about 11 centimeters, said offset distance being measured along a perpendicular line from a chord joining the ends of the curve to a point on the curve furthest from said chord.
Claim 7
Dependent Claim
19 words
A chair as claimed in claim 2 wherein said seat is inclined rearwardly and downwardly towards said upright support.
Claim 8
Dependent Claim
17 words
A chair as claimed in claim 4 wherein said inclination of the seat is about 6* .
Claim 9
Dependent Claim
40 words
A chair as claimed in claim 4 wherein said arm support means comprises a pair of arm rests supported from said upright support at an adjustable level and at an adjustable spacing to pass beneath the armputs of the user.
Claim 10
Dependent Claim
20 words
A chair as claimed in claim 6 wherein said arm supports are inclined downwardly and forwardly from the upright support.
Claim 11
Dependent Claim
31 words
A chair as claimed in claim 2 wherein said head rest means comprises a chin support attached to the upright support at an adjustable level above the base of the skull.
Claim 12
Dependent Claim
17 words
A chair as claimed in claim 1 comprising a support for placing the seat on the ground.
Claim 13
Dependent Claim
21 words
A chair as claimed in claim 2 comprising means supporting the foot rest means from said seat for relative height adjustment.
Claim 14
Dependent Claim
17 words
A chair as claimed in claim 1 wherein said upright support is constituted of a rigid material.
Claim 15
Dependent Claim
42 words
A chair as claimed in claim 1 wherein said means for supporting the user in a fetal position further comprises an arm support means on said upright support, a foot rest on said seat, and chin support means on said upright support.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |