Patent US5415917A successfully refreshed from Google Patents.
US5415917A
Expired / Lapsed
US
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Plane formed body, especially floor covering and process for producing it
Assignee: Individual
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Filing: 1993-05-25
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Granted: 1995-05-16
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Expires: 2013-05-25
Abstract
Abstract A plane formed body, especially a floor covering, is described with a cover layer (1), a base layer (3) and a core layer (2) that have fibers that can be stitched. The three layers are stitched by means of fibers (1a) taken from the cover layer (1). The core layer (2) consists of polyvinyl chloride material in the form of pieces that are in solid form and a PVC binder or plastisol paste. The fibers (1a) are tightly bonded into all three layers (1,2,3).
Inventors
- 👤 Gunter Tesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:48
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/06; B32B27/00; B32B27/02; B32B27/06; B32B27/08; B32B27/12; B32B27/30; B32B27/304; B32B27/32; B32B27/34; B32B27/36; B32B5/022; B32B5/024; B32B5/22; B32B5/24; B32B7/00; B32B7/04; B32B7/12; D; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H13/00; D06; D06N; D06N7/00; D06N7/0005; B32B2305/00; B32B2305/70; B32B2307/00; B32B2307/10; B32B2307/102; B32B2307/50; B32B2307/554; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2471/00; D10; D10B; D10B2201/00; D10B2201/01; D10B2201/06; D10B2321/00; D10B2321/02; D10B2321/022; D10B2321/04; D10B2321/041; D10B2331/00; D10B2331/02; D10B2331/04; D10B2503/00; D10B2503/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1075; Y10T156/1077; Y10T428/00; Y10T428/24; Y10T428/24033; Y10T442/00; Y10T442/30; Y10T442/3707; Y10T442/3724
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
90 words
A plane formed body, especially a floor covering, with a cover layer having fibers that can be stitched, a base layer and a core layer, wherein the three layers are stitched by means of fibers taken from the cover layer, characterized by the fact that the core layer (2) consists of polyvinyl chloride (PVC) material in the shape of pieces that have a solid form, a binder selected from a group consisting of a PVC binder and a plastisol paste, and fibers (1a) tightly bonded into all three layers (1,2,3).
Claim 2
Dependent Claim
90 words
A plane formed body, especially a floor covering, with a cover layer having fibers that can be stitched, a base layer and a core layer, wherein the three layers are stitched by means of fibers taken from the cover layer, characterized by the fact that the core layer (2) consists of polyvinyl chloride (PVC) material in the shape of pieces that have a solid form, a binder selected from a group consisting of a PVC binder and a plastisol paste, and fibers (1a) tightly bonded into all three layers (1,2,3).
Claim 3
Dependent Claim
26 words
A plane formed body according to claim 1, characterized by the fact that pieces of the core layer (4) are produced from a used PVC flooring.
Claim 4
Dependent Claim
41 words
A plane formed body according to claim 1, characterized by the fact that the PVC pieces (4) are a maximum of 5 mm in width and 15 mm in length and have a thickness of roughly 0.5 mm to 2 mm.
Claim 5
Dependent Claim
22 words
A plane formed body according to claim 1, characterized by the fact that the base layer (3) consists of a woven material.
Claim 6
Dependent Claim
27 words
A plane formed body according to claim 4, characterized by the fact that the woven material is selected from a group consisting of polypropylene, polyethylene and jute.
Claim 7
Dependent Claim
23 words
A plane formed body according to, claim 1, characterized by the fact that the binder is basically only in the core layer (2).
Claim 8
Dependent Claim
30 words
A plane formed body according to claim 1, characterized by the fact that at least the fibers (1a) in the cover layer (1) are enclosed by a plastisol paste (5).
Claim 9
Dependent Claim
18 words
A plane formed body according claim 4, characterized by the fact that the binder or contains PVC scrap.
Claim 10
Dependent Claim
89 words
A process for producing a plane formed body including the steps of: dividing PVC material into pieces, depositing the pieces on a base layer (3), thereby forming a core layer (2), depositing a cover layer (1) containing fibers (1a) on the core layer (2), adding a binder to one of the core layer (2) and the cover layer (1), stitching the base layer, the core layer, and the cover layer together with fibers from the cover layer to form a plane body, heat treating under pressure the plane body.
Claim 11
Dependent Claim
89 words
A process for producing a plane formed body including the steps of: dividing PVC material into pieces, depositing the pieces on a base layer (3), thereby forming a core layer (2), depositing a cover layer (1) containing fibers (1a) on the core layer (2), adding a binder to one of the core layer (2) and the cover layer (1), stitching the base layer, the core layer, and the cover layer together with fibers from the cover layer to form a plane body, heat treating under pressure the plane body.
Claim 12
Dependent Claim
18 words
A process according to claim 9, characterized by the fact that the pieces (4) are heated before stitching.
Claim 13
Dependent Claim
30 words
A process according to claim 9, characterized by the fact that the PVC pieces (4) are exposed to the influence of softeners before being deposited on the base layer (3).
Claim 14
Dependent Claim
25 words
A process according to claim 9, characterized by the fact that at the latest after stitching, a binder is applied to the cover layer (1).
Claim 15
Dependent Claim
43 words
A process according to claim 9, characterized by the fact that after the binder (5) is applied, the plane formed body is fed through at least one pair of rollers and the binder (5) is pressed at least into the cover layer (1).
Claim 16
Dependent Claim
24 words
A process according to claim 13, characterized by the fact that a surface (1) on the cover layer side is smoothed out during rolling.
Claim 17
Dependent Claim
17 words
A plane formed body according to claim 1, wherein the base layer consists of a nonwoven material.
Claim 18
Dependent Claim
23 words
A plane formed body according to claim 15, wherein the nonwoven material is selected from a group consisting of polypropylene, polyethylene, and jute.
Claim 19
Dependent Claim
13 words
A process according to claim 9, wherein the pieces are heated during stitching.
Claim 20
Dependent Claim
21 words
A process according to claim 9, wherein the PVC pieces are exposed to solvents before being deposited on the base layer.
Claim 21
Dependent Claim
17 words
A process according to claims 13, wherein a surface on the cover layer is stamped during rolling.
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) | 1998-05-15 | 1998-11-14 | 1999-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-15 | 2002-11-14 | 2003-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-15 | 2006-11-14 | 2007-05-16 | $7700.00 | Window Closed / Lapsed |