US5494333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hillside chair
Assignee: Individual
•
Filing: 1994-06-21
•
Granted: 1996-02-27
•
Expires: 2014-06-21
Abstract
Abstract A folding chair is disclosed which can be used on sloping or uneven terrain. Individually adjustable legs and leveling feet provide flexibility of use, comfort, and stability where ordinary folding chairs cannot be used. In an alternative embodiment, ball and socket leveling feet are used to level the feet and distribute the leg loads. Grooved resilient pads on the bottom of the feet prevent slippage on hard surfaces such as rock or concrete. Closable storage compartments are provided in the arms for storage of small items,
Inventors
- 👤 Barry E. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:09
CPC Classifications
A; A47; A47C; A47C15/00; A47C15/004; A47C7/00; A47C7/002; A47C7/008
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
187 words
A chair for use on uneven surfaces comprising: (a) a seat to form a seating surface; (b) a back to provide back support to a user; (c) two armrests to support the arms of the user; (d) three legs to support the chair, one of said three legs attached to a central portion of a generally "U" shaped support, the "U" shaped support pivotally attached to said two armrests; (e) an individual length adjustment means to individually adjust the length of each of said three legs, the adjustment means comprising a leg extension and a leg extension locking means; (f) a leveling foot on said each of said three legs for conforming a bottom surface of the foot to a local ground slope, the leveling foot comprising a grooved resilient bottom surface and attached pivotally to said leg extension; and (g) an interconnecting means for positioning and supporting the seat, back, armrests and legs in an operating position for seating of the user, and a folding position for positioning and supporting the seat, back, armrests, and legs in close proximity for storage and carrying of the chair.
Claim 2
Dependent Claim
187 words
A chair for use on uneven surfaces comprising: (a) a seat to form a seating surface; (b) a back to provide back support to a user; (c) two armrests to support the arms of the user; (d) three legs to support the chair, one of said three legs attached to a central portion of a generally "U" shaped support, the "U" shaped support pivotally attached to said two armrests; (e) an individual length adjustment means to individually adjust the length of each of said three legs, the adjustment means comprising a leg extension and a leg extension locking means; (f) a leveling foot on said each of said three legs for conforming a bottom surface of the foot to a local ground slope, the leveling foot comprising a grooved resilient bottom surface and attached pivotally to said leg extension; and (g) an interconnecting means for positioning and supporting the seat, back, armrests and legs in an operating position for seating of the user, and a folding position for positioning and supporting the seat, back, armrests, and legs in close proximity for storage and carrying of the chair.
Claim 3
Dependent Claim
28 words
The chair of claim 1 wherein the leveling foot is attached pivotally to said leg extension by an elongated fastener, the leveling foot pivoting about the elongated fastener.
Claim 4
Dependent Claim
22 words
The chair of claim 1 wherein the leveling foot is attached pivotally to said leg extension by a ball and socket joint.
Claim 5
Dependent Claim
17 words
The chair of claim 1 comprising a storage compartment in at least one of said two armrests.
References Cited (Backward Citations)
US1973226A
Cited
US2128522A
Cited
US2649135A
Cited
US3006673A
Cited
US3099103A
Cited
US3624814A
Cited
US3659898A
Cited
US4029278A
Cited
US4772068A
Cited
US5060896A
Cited
US4832296A
Cited
US5207477A
Cited
US4948197A
Cited
US5246265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-26 | 1999-08-28 | 2000-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-26 | 2003-08-28 | 2004-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-26 | 2007-08-28 | 2008-02-27 | $7700.00 | Window Closed / Lapsed |