US4820574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filling material for cushions and covers
Assignee: GUNTER TESCH AVENUE JEAN-MARIE-MUSY 15 CH-1700 FRIBOURG SWITZERLAND
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Filing: 1987-08-26
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Granted: 1989-04-11
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Expires: 2007-08-26
Abstract
Abstract A filler material for cushions and covers, in particular with spherical fiber aggregates wherein individual cut fibers are intertwined, is described. The fiber aggregates are capable of forming connections with others parts of the filler material. The connection is burr-like and is releasable. This may be obtained, for example, by the individual fiber ends (3) which project from the surface of the otherwise spherical fiber aggregate (1). In this manner a filler material for cushions and covers is obtained, in which the fiber aggregates do not shift or slide excessively within a covering, in particular a pillow, so that an adequate and permanent support for the head of a person is provided.
Inventors
- 👤 Gunter Tesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:04
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/04; A; A47; A47G; A47G9/00; B; B68; B68G; B68G1/00; B68G2001/005; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24008; Y10T428/24017; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24942; Y10T428/24992; Y10T428/249921; Y10T428/249922; Y10T428/29; Y10T428/2904; Y10T428/2909; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2925; Y10T428/2982
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
64 words
A filler material for cushions and covers comprising fiber aggregates containing individual cut fibers which are intertwined with each other, characterized in that the fiber aggregates are able to form connections with other parts of the filler material, wherein the individual fiber ends are projecting from the surface of the fiber aggregate which has a spherical shape, the projecting fiber ends forming releasable connections.
Claim 2
Dependent Claim
64 words
A filler material for cushions and covers comprising fiber aggregates containing individual cut fibers which are intertwined with each other, characterized in that the fiber aggregates are able to form connections with other parts of the filler material, wherein the individual fiber ends are projecting from the surface of the fiber aggregate which has a spherical shape, the projecting fiber ends forming releasable connections.
Claim 3
Dependent Claim
14 words
A filler material according to claim 1, wherein the projecting fibers have hook-shaped ends.
Claim 4
Dependent Claim
28 words
A filler material according to claim 1 wherein the fiber aggregate consists of a mixture of fibers, one type of which is projecting from the spherical fiber aggregate.
Claim 5
Dependent Claim
23 words
A filler material according to claim 1 wherein the projecting fibers are fibers that are stiffer than the non-projecting fibers of the aggregate.
Claim 6
Dependent Claim
13 words
A filler material according to claim 2, wherein the fiber aggregates are spheres.
Claim 7
Dependent Claim
14 words
A filler material according to claim 1, wherein the fiber aggregates contain wool fibers.
Claim 8
Dependent Claim
23 words
A filler material according to claim 1, wherein the fiber aggregates are spheres consisting of a mixture of wool fibers and straight hairs.
Claim 9
Dependent Claim
22 words
A filler material according to claim 1, wherein the fiber aggregates are spheres consisting of a mixture of wool and synthetic fibers.
Claim 10
Dependent Claim
24 words
A filler material according to claim 1, which contains in addition to the fiber aggregates with projecting fiber ends other not burr-like filler parts.
Claim 11
Dependent Claim
23 words
A filler material according to the preceding claim, which contains other filler parts which are spherical fiber aggregates with an essentially smooth surface.
Claim 12
Dependent Claim
19 words
A filler material according to claim 9, wherein the other filler materials are feathers, down, or plastic foam particles.
Claim 13
Dependent Claim
18 words
A filler material according to claim 7, wherein the straight hairs comprise about 20% of the fiber aggregate.
Claim 14
Dependent Claim
11 words
A cushion or cover containing the filler material of claim 1.
References Cited (Backward Citations)
US4413030A
Cited
US4481247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |