US5551752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lumbar support cushion for chairs
Assignee: Knoll Inc
•
Filing: 1995-09-27
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Granted: 1996-09-03
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Expires: 2015-09-27
Abstract
Abstract Disclosed is a cushion for supporting the lumbar area of the back of a person while seated in a chair. The cushion is suitable for use with different types of chairs and is comprised of an elongated strip of flexible material that drapes over the chair back and has a weight on one end thereof to allow easy adjustment of the cushion and a pad of foamed cushion material at the other end. The pad of foamed cushion material is adapted to fit between the chair back and the lumbar area of the back of the seated person and is preferably made of a heat sensitive plastic foam that will mold itself to conform to the shape of the lumbar area of the user's back from the body heat of the person seated in the chair.
Inventors
- 👤 Ross Lovegrove
- 👤 Stephen Peart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:39
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/46; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
151 words
A cushion for supporting the lumbar area of a person while seated in a chair having a back, the cushion comprising: an elongated strip of material having two ends, a front face and a rear face; a pad of foamed cushion material having a front longitudinal surface, a rear longitudinal surface, a top portion, a bottom portion and side portions; the elongated strip of material having a discreet weight attached to the front face of the elongated strip of material at one end thereof and the pad of foamed cushion material attached to the rear face of the elongated strip of material at the other end thereof, the rear face of the elongated strip of material substantially covering the front longitudinal surface of the pad of foamed cushion material; and the pad of foamed cushion material adapted to fit between a seated person's lumbar area and the back of the chair.
Claim 2
Dependent Claim
151 words
A cushion for supporting the lumbar area of a person while seated in a chair having a back, the cushion comprising: an elongated strip of material having two ends, a front face and a rear face; a pad of foamed cushion material having a front longitudinal surface, a rear longitudinal surface, a top portion, a bottom portion and side portions; the elongated strip of material having a discreet weight attached to the front face of the elongated strip of material at one end thereof and the pad of foamed cushion material attached to the rear face of the elongated strip of material at the other end thereof, the rear face of the elongated strip of material substantially covering the front longitudinal surface of the pad of foamed cushion material; and the pad of foamed cushion material adapted to fit between a seated person's lumbar area and the back of the chair.
Claim 3
Dependent Claim
36 words
The cushion according to claim 1 wherein the pad of foamed cushion material is constructed of a heat sensitive foam capable of being molded to conform to a person's lumbar area from the person's body heat.
Claim 4
Dependent Claim
38 words
The cushion according to claim 2 wherein the end of the elongated strip of material attached to the pad of foamed cushion material is wider than the end of the elongated strip of material attached to the weight.
Claim 5
Dependent Claim
25 words
The cushion according to claim 3 wherein the side portions of the pad of foamed cushion material are thicker than the top and bottom portions.
Claim 6
Dependent Claim
30 words
The cushion according to claim 4 wherein the front longitudinal surface of the pad of foamed cushion material is bonded to the rear face of the elongated strip of material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-03 | 2000-03-04 | 2000-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-03 | 2004-03-04 | 2004-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-03 | 2008-03-04 | 2008-09-03 | $7700.00 | Window Closed / Lapsed |