US4486493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushion body
Assignee: Carl Freudenberg KG
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Filing: 1983-02-28
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Granted: 1984-12-04
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Expires: 2003-02-28
Abstract
Abstract The invention of this application relates to a cushion body, well suited for use as a seat cushion of a motor vehicle, consisting of a spring body which is deformable under a load, and is air and mositure permeable. The cushion also employs an air permeable cover material which is stretched over the cushion and is underlaid with a buffer layer which has a substantial content of cellulose fibers. The spring body consists of fibers with hydrophilic properties and a titer of 3 to 50 dtex, which fibers are combined to form a spatially oriented network, and are cemented together where they intersect.
Inventors
- 👤 Holger Burmester
- 👤 Klaus Veeser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:39
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/12; A47C27/22; A47C7/00; A47C7/02; A47C7/24; Y; Y10; Y10S; Y10S297/00; Y10S297/01; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/29; Y10T428/2904; Y10T428/2905; Y10T428/2909; Y10T428/2913; Y10T428/2929; Y10T442/00; Y10T442/40; Y10T442/425
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
133 words
A cushion body, suitable for use as an automobile cushion, comprising a deformable spring body which is air and moisture permeable, an outermost air permeable surface covering, and disposed intermediate the spring body and outermost surface covering, a buffer layer, wherein the buffer layer has an area weight of about 150 to about 350 gm/m 2 and is comprised substantially of cellulose fibers, and wherein the spring body is comprised of a network of intersecting fibers which are bonded together at their points of intersection, and wherein the spring body has a bulk weight of about 10 to about 100 kg/m 2 , a thickness of about 5 to about 20 mm, and the fibers which form the spring body have hydrophilic properties and a titer of about 3 to about 50 dtex.
Claim 2
Dependent Claim
133 words
A cushion body, suitable for use as an automobile cushion, comprising a deformable spring body which is air and moisture permeable, an outermost air permeable surface covering, and disposed intermediate the spring body and outermost surface covering, a buffer layer, wherein the buffer layer has an area weight of about 150 to about 350 gm/m 2 and is comprised substantially of cellulose fibers, and wherein the spring body is comprised of a network of intersecting fibers which are bonded together at their points of intersection, and wherein the spring body has a bulk weight of about 10 to about 100 kg/m 2 , a thickness of about 5 to about 20 mm, and the fibers which form the spring body have hydrophilic properties and a titer of about 3 to about 50 dtex.
Claim 3
Dependent Claim
29 words
The cushion body according to claim 1 wherein the fibers of said spring body are comprised of a core of a hydrophobic material surface coated with a hydrophilic material.
Claim 4
Dependent Claim
18 words
The cushion body according to claim 2 wherein the core material is formed from a plastic or metal.
Claim 5
Dependent Claim
16 words
The cushion body according to claim 3 wherein the fibers of said spring body are crinkled.
Claim 6
Dependent Claim
16 words
The cushion body according to claim 1 wherein the fibers of said spring body are crinkled.
Claim 7
Dependent Claim
20 words
The cushion body according to claim 4 wherein the crinkled fiber has about 5 to about 40 arcs per centimeter.
Claim 8
Dependent Claim
20 words
The cushion body according to claim 5 wherein said crinkled fibers have about 5 to about 40 arcs per centimeter.
Claim 9
Dependent Claim
18 words
The cushion body according to claim 1 wherein said fibers are bonded together by a crosslinkable bonding agent.
Claim 10
Dependent Claim
18 words
The cushion body according to claim 3 wherein the fibers are bonded together by a crosslinkable bonding agent.
Claim 11
Dependent Claim
14 words
The cushion body according to claim 1 wherein said network is a knitted fabric.
Claim 12
Dependent Claim
14 words
The cushion body according to claim 2 wherein said network is a knitted fabric.
References Cited (Backward Citations)
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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) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |