Patent US5482353A successfully refreshed from Google Patents.
US5482353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable lumbar supports for seats
Assignee: Teleflex Medical LLC
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Filing: 1992-06-01
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Granted: 1996-01-09
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Expires: 2012-06-01
Abstract
Abstract There is disclosed a lumbar support mechanism for a seat having a bracket adapted to be fixed on one side frame of a seat, a waistband adapted to extend across the seat between the bracket and the other side frame of the seat behind cushioning material of the seat, said bracket including an adjustment device to either alter the distance between the ends of a fixed length waistband or to alter the length of a portion of the waistband extending between the bracket and the other side frame of the seat which includes the improvement of providing a friction reducing device between the cushioning material of the seat and the waistband which friction reducing device extends from the bracket towards the other side frame of the seat.
Inventors
- 👤 Mark A. Lance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:32
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/46
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
132 words
A lumbar support arrangement for a seat having seat cushioning material disposed between a pair of seat side frames, comprising: a waistband adopted to extending between the seat side frames behind the seat cushioning material, and for supportingly engaging with the seat cushioning material, wherein the waistband is adopted for use with a waistband length adjusting device that is adopted to be operably engaged with the waistband at one seat side frame for varying the effective length of the waistband to thereby vary the lumbar support position of the seat cushioning material, and friction reducing material for interposing between facing surfaces of the waistband and the seat cushioning material to thereby reduce sliding friction between the seat cushioning material and the waistband during adjusting of said waistband length by the adjusting device.
Claim 2
Dependent Claim
132 words
A lumbar support arrangement for a seat having seat cushioning material disposed between a pair of seat side frames, comprising: a waistband adopted to extending between the seat side frames behind the seat cushioning material, and for supportingly engaging with the seat cushioning material, wherein the waistband is adopted for use with a waistband length adjusting device that is adopted to be operably engaged with the waistband at one seat side frame for varying the effective length of the waistband to thereby vary the lumbar support position of the seat cushioning material, and friction reducing material for interposing between facing surfaces of the waistband and the seat cushioning material to thereby reduce sliding friction between the seat cushioning material and the waistband during adjusting of said waistband length by the adjusting device.
Claim 3
Dependent Claim
27 words
A lumbar support arrangement according to claim 1, wherein said friction reducing material is adopted to be fixed in position with respect to said seat cushioning material.
Claim 4
Dependent Claim
29 words
A lumbar support arrangement according to claim 1, wherein said friction reducing material is adopted to be fixed in position with respect to one of said seat side frames.
Claim 5
Dependent Claim
20 words
A lumbar support arrangement according to claim 1, wherein the waistband is a flexible waistband of relatively inextensive elastic material.
Claim 6
Dependent Claim
23 words
A lumbar support arrangement according to claim 1, wherein said friction reducing material is in the form of a sheet of flexible material.
Claim 7
Dependent Claim
22 words
A lumbar support arrangement according to claim 1, wherein said waistband and said friction reducing material are made of the same material.
Claim 8
Dependent Claim
35 words
A lumbar support arrangement according to claim 1, wherein said friction reducing material is adopted to extend over a substantial portion of the length of the facing surfaces of the waistband and seat cushioning materials.
Claim 9
Dependent Claim
19 words
A lumbar support arrangement according to claim 1, wherein said friction reducing material includes a sheet of flexible material.
Claim 10
Dependent Claim
30 words
A lumbar support arrangement according to claim 8, wherein both said waistband and said sheet of flexible material are adopted to be fixed to one of said seat side frames.
Claim 11
Dependent Claim
27 words
A lumbar support arrangement according to claim 9, wherein said sheet of flexible material is wider than said waistband along a substantial portion of their facing surfaces.
Claim 12
Dependent Claim
23 words
A lumbar support arrangement according to claim 1, wherein said adjusting device is to be supported at one of said seat side frames.
Claim 13
Dependent Claim
39 words
A lumbar support arrangement according to claim 11, wherein said friction reducing material is adopted to extend from the adjusting device over a substantial portion of the length of the facing surfaces of the waistband and seat cushioning material.
Claim 14
Dependent Claim
28 words
A lumbar support arrangement according to claim 12, wherein said friction reducing material is adopted to extend over more than 50% of the length of the cushioning material.
Claim 15
Dependent Claim
23 words
A lumbar support arrangement according to claim 12, wherein said friction reducing material is in the form of a sheet of flexible material.
Claim 16
Dependent Claim
26 words
A lumbar support arrangement according to claim 14, wherein said sheet of flexible material is adopted to be fixed to one of said seat side frames.
Claim 17
Dependent Claim
23 words
A lumbar support arrangement according to claim 14, wherein said sheet of flexible material is adopted to be fixed to said adjusting device.
Claim 18
Dependent Claim
27 words
A lumbar support arrangement according to claim 14, wherein said sheet of flexible material is formed of plastic having a surface with a low coefficient of friction.
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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) | 1999-01-08 | 1999-07-10 | 2000-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-08 | 2003-07-10 | 2004-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-08 | 2007-07-10 | 2008-01-09 | $7700.00 | Window Closed / Lapsed |