US4607882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair with saddle shaped seat and members externally transversely therefrom
Assignee: Individual
•
Filing: 1984-12-06
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Granted: 1986-08-26
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Expires: 2004-12-06
Abstract
Abstract A chair provided with a seat and a back rest, said seat (1) having a general saddle shape, a saddle-like member (2,3 ) projecting out from a mid part of each longitudinal side of said saddle shaped seat to support the rear, upper thigh portion of a chair user. The back rest (4) has a comparatively narrow, upwardly directed mid portion (5), and two branches (6, 7) projecting laterally therefrom, and intended to be used for elbow and/or forearm support. The chair can be used for sitting posture in both directions, i.e. facing away from or facing the back rest. In either of these sitting postures, the chair occupant can assume a sitting posture with a large open angle between the upper part of the body and the thigh section, the sitting posture then approaching that of a kneeling-like sitting posture.
Inventors
- 👤 Peter Opsvik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:34
CPC Classifications
A; A47; A47C; A47C9/00; A47C9/002; A47C7/00; A47C7/02; A47C7/029
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
64 words
A chair having a seat wherein said seat has a longitudinal saddle shaped part, said saddle shaped part having an upper surface cross-section approximately in the shape of an inverted U, and further having saddle-like members projecting transversely out from a mid portion of each longitudinal side of said seat part to support the rear, upper thigh portion of a user of the chair.
Claim 2
Dependent Claim
64 words
A chair having a seat wherein said seat has a longitudinal saddle shaped part, said saddle shaped part having an upper surface cross-section approximately in the shape of an inverted U, and further having saddle-like members projecting transversely out from a mid portion of each longitudinal side of said seat part to support the rear, upper thigh portion of a user of the chair.
Claim 3
Dependent Claim
26 words
The chair according to claim 1, wherein a distance between outer ends of said projecting members approximately corresponds to a length of said saddle shaped part.
Claim 4
Dependent Claim
30 words
The chair according to claim 1, wherein said projecting members have at a top thereof a curvature of lesser radius of curvature than a curvature of said saddle shaped part.
Claim 5
Dependent Claim
30 words
The chair according to claim 2, wherein said projecting members have at a top thereof a curvature of lesser radius of curvature than a curvature of said saddle shaped part.
Claim 6
Dependent Claim
20 words
The chair according to claim 1, wherein said seat as viewed from above is shaped substantially like a groin vault.
Claim 7
Dependent Claim
22 words
The chair according to claim 1, wherein said seat as viewed from above has a shape substantially like a welsh underpitch vault.
Claim 8
Dependent Claim
20 words
The chair according to claim 2, wherein said seat as viewed from above is shaped substantially like a groin vault.
Claim 9
Dependent Claim
22 words
The chair according to claim 2, wherein said seat as viewed from above has a shape substantially like a welsh underpitch vault.
Claim 10
Dependent Claim
65 words
A chair having a seat and a backrest wherein said seat has a longitudinal saddle shaped part, said saddle shaped part having an upper surface cross-section approximately in the shape of an inverted U, and further having saddle-like members projecting transversely out from a mid portion of each longitudinal side of said seat part to support the rear upper thigh portion of the chair user.
Claim 11
Dependent Claim
65 words
A chair having a seat and a backrest wherein said seat has a longitudinal saddle shaped part, said saddle shaped part having an upper surface cross-section approximately in the shape of an inverted U, and further having saddle-like members projecting transversely out from a mid portion of each longitudinal side of said seat part to support the rear upper thigh portion of the chair user.
Claim 12
Dependent Claim
22 words
The chair according to claim 9, wherein said backrest has a comparatively narrow upright mid portion and two branches extending laterally therefrom.
Claim 13
Dependent Claim
26 words
The chair according to claim 10, wherein said mid portion has a width which is approximately equal to one-third of the largest width of said backrest.
Claim 14
Dependent Claim
17 words
The chair according to claim 10, wherein said backrest has substantially the shape of a plus sign.
Claim 15
Dependent Claim
26 words
The chair according to claim 9, wherein a distance between outer ends of said projecting members approximately corresponds to a length of said saddle shaped part.
Claim 16
Dependent Claim
30 words
The chair according to claim 10, wherein said projecting members have at a top thereof a curvature of lesser radius of curvature than a curvature of said saddle shaped part.
Claim 17
Dependent Claim
30 words
The chair according to claim 13, wherein said projecting members have at a top thereof a curvature of lesser radius of curvature than a curvature of said saddle shaped part.
Claim 18
Dependent Claim
20 words
The chair according to claim 10, wherein said seat as viewed from above is shaped substantially like a groin vault.
Claim 19
Dependent Claim
22 words
The chair according to claim 10, wherein said seat as viewed from above has a shape substantially like a welsh underpitch vault.
Claim 20
Dependent Claim
20 words
The chair according to claim 13, wherein said seat as viewed from above is shaped substantially like a groin vault.
Claim 21
Dependent Claim
22 words
The chair according to claim 13, wherein said seat as viewed from above has a shape substantially like a welsh underpitch vault.
Claim 22
Dependent Claim
78 words
A chair having a seat of generally a saddle shape, having a saddle-like member projecting transversely out from a mid portion of each longitudinal side of seat to support the rear, upper thigh portion of a user of the chair, a distance between either ends of said projecting members approximately corresponding to a length of said saddle shaped part, said projecting members, having at their top a curvature of lesser radius of curvature than that of said seat.
Claim 23
Dependent Claim
78 words
A chair having a seat of generally a saddle shape, having a saddle-like member projecting transversely out from a mid portion of each longitudinal side of seat to support the rear, upper thigh portion of a user of the chair, a distance between either ends of said projecting members approximately corresponding to a length of said saddle shaped part, said projecting members, having at their top a curvature of lesser radius of curvature than that of said seat.
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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |