US6755477B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Therapeutic sling seat
Assignee: Individual
•
Filing: 2001-07-23
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Granted: 2004-06-29
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Expires: 2021-07-23
Abstract
Abstract A therapeutic sling seat comprising a flexible material which is non-uniform in stiffness providing maximum contact surface area with the body of a person seated in the seat by spreading the forces away from high pressure areas using multiaxis tension forces. The seat material in tension adapts to the contour of the posterior of the seated person. By controlling the pressures on the ischial tuberosities, physical problems such as ulcers can be avoided.
Inventors
- 👤 William W. Chow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:53
CPC Classifications
A; A47; A47C; A47C9/00; A47C9/002; A47C7/00; A47C7/02; A47C7/029; A61; A61G; A61G5/00; A61G5/10; A61G5/1043; A61G5/1045; A61G7/00; A61G7/05; A61G7/057
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
102 words
A sling seat, comprising: at least three flexible layers of material of a non-uniform stiffness, with each layer having a top side, a bottom side, a front edge, a rear edge, and a pair of generally parallel side edges, with each side edge of said layers fastened together to form a pair of generally parallel side seams; a plurality of flexible pads, located between each two adjacent flexible layers; an accommodating layer having a cutout section for accommodating the ischial tuberosities of a person sitting in the seat; and a support for separately supporting each side seam to form a sling seat.
Claim 2
Dependent Claim
102 words
A sling seat, comprising: at least three flexible layers of material of a non-uniform stiffness, with each layer having a top side, a bottom side, a front edge, a rear edge, and a pair of generally parallel side edges, with each side edge of said layers fastened together to form a pair of generally parallel side seams; a plurality of flexible pads, located between each two adjacent flexible layers; an accommodating layer having a cutout section for accommodating the ischial tuberosities of a person sitting in the seat; and a support for separately supporting each side seam to form a sling seat.
Claim 3
Dependent Claim
16 words
The seat of claim 1 , wherein said flexible layers of material are held in tension.
Claim 4
Dependent Claim
14 words
The seat of claim 1 , wherein said flexible pads are held in compression.
Claim 5
Dependent Claim
15 words
The seat of claim 1 , wherein said flexible pads are constructed from foam rubber.
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) | 2007-06-29 | 2007-12-29 | 2008-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-06-29 | 2011-12-29 | 2012-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-06-29 | 2015-12-29 | 2016-06-29 | $7700.00 | Window Closed / Lapsed |