US3867732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat cushion
Assignee: Individual
•
Filing: 1973-02-23
•
Granted: 1975-02-25
•
Expires: 1993-02-23
Abstract
Abstract A cushion having a foam rubber body on which is supported a plurality of inflatable tubes in transverse side-by-side relation. The tubes are connected to an air supply adapted to inflate the tubes. Control means are associated with the air supply in an arrangement which causes inflation of alternate tubes while deflating the remaining tubes and vice versa, thus varying the points of support for a person using the seat. The controls are arranged to be either hand operated for manual cycling of air to the two sets of tubes or power operated for automatic cycling.
Inventors
- 👤 William C Morrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:14
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/54; A47C27/00; A47C27/08; A47C27/081; A47C27/082; A47C27/10; A47C27/14; A47C27/18; A61; A61G; A61G5/00; A61G5/10; A61G5/1043; A61G5/1045; A61G7/00; A61G7/05; A61G7/057; A61G7/05769; A61G7/05776; Y; Y10; Y10S; Y10S297/00; Y10S297/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
A seat cushion comprising a. a flexible support member, b. an upholstery cover for said flexible support member having an upper surface, c. means in said upholstery cover defining a plurality of transverse individual parallel pockets extending from side to side of the seat cushion, d. each of said pockets having a bottom opening disposed approximately centrally between the two sides, e. a first set of fillable flexible tubes supported on said flexible support member and being confined within alternate one of said pockets, f. a second set of fillable flexible tubes supported on said flexible support member and confined in pockets alternately spaced between said first pockets, g. said tubes having inlet connections substantially centrally thereof for projection from said openings in the pockets, h. continuous powered fluid supply means having hoses secured to said inlet connections and being arranged to feed and discharge fluid in said tubes, i. a center groove in the front and upper surface of said flexible support member receiving said hoses, the upper surface of said upHolstery assuming the contour of the upper portion of the individual tubes, j. and cycle control means for said fluid supply means arranged to admit fluid to said first set of tubes while discharging fluid to atmosphere from the second set of tubes and vice versa whereby to vary points of support for a person seated on the seat.
Claim 2
Dependent Claim
231 words
A seat cushion comprising a. a flexible support member, b. an upholstery cover for said flexible support member having an upper surface, c. means in said upholstery cover defining a plurality of transverse individual parallel pockets extending from side to side of the seat cushion, d. each of said pockets having a bottom opening disposed approximately centrally between the two sides, e. a first set of fillable flexible tubes supported on said flexible support member and being confined within alternate one of said pockets, f. a second set of fillable flexible tubes supported on said flexible support member and confined in pockets alternately spaced between said first pockets, g. said tubes having inlet connections substantially centrally thereof for projection from said openings in the pockets, h. continuous powered fluid supply means having hoses secured to said inlet connections and being arranged to feed and discharge fluid in said tubes, i. a center groove in the front and upper surface of said flexible support member receiving said hoses, the upper surface of said upHolstery assuming the contour of the upper portion of the individual tubes, j. and cycle control means for said fluid supply means arranged to admit fluid to said first set of tubes while discharging fluid to atmosphere from the second set of tubes and vice versa whereby to vary points of support for a person seated on the seat.
References Cited (Backward Citations)
US3199124A
Cited
US3326601A
Cited
US3394415A
Cited
US3595223A
Cited
US3678520A
Cited
US3672354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |