EP0194602A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A method for producing an endless belt with a smooth inner surface for use in a papermaking extended nip press
Assignee: Albany International Corp
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Filing: 1986-03-07
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Granted: —
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Expires: 2006-03-07
Abstract
Abstract @ A belt (16) is disclosed having a base fabric (34) which has been impregnated by or immersed into a polymer material (36) so that it has a smooth inner surface (16'). The belt (16) is used to form an extended press nip (10) for dewatering a paper web (24). The press nip (10) is formed by forcing a stationary shoe (14) against the inner surface of the belt (16). The belt (16) is preferably made by mounting a base fabric (34) on the inner mandrel (40) of a cylindrical mold - (38) and injecting an appropriate material in the mold. After the material is properly dispersed through the base fabric, it is cured.
Inventors
- 👤 William H. Dutt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 01:09
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/0209; D21F3/0218; D21F3/0227; D21F3/0236
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
28 words
An endless belt for use in a papermaking extended press nip comprising; an endless base; and impregnating material penetrating said fabric to form a smooth inner surface thereon.
Claim 2
Dependent Claim
28 words
An endless belt for use in a papermaking extended press nip comprising; an endless base; and impregnating material penetrating said fabric to form a smooth inner surface thereon.
Claim 3
Dependent Claim
13 words
The endless belt of claim 1 wherein said base comprises a woven fabric.
Claim 4
Dependent Claim
12 words
The endless belt of claim 1 wherein said material is a polymer.
Claim 5
Dependent Claim
23 words
The endless belt of claim 3 wherein said material is applied to said base in a continuous fashion to render said belt impermeable.
Claim 6
Dependent Claim
34 words
The endless belt of claim 4 wherein said material is applied by disposing said base on a mandrel with a smooth outer surface and causing said material to deposit on said mandrel and base.
Claim 7
Independent Claim
43 words
A method of producing an endless belt with a smooth inner surface comprising: providing a cylindrical mold with a smooth mandrel and an outer shell; disposing an endless base within said mold on said mandrel; and injecting an impregnating material into the mold.
Claim 8
Independent Claim
43 words
A method of producing an endless belt with a smooth inner surface comprising: providing a cylindrical mold with a smooth mandrel and an outer shell; disposing an endless base within said mold on said mandrel; and injecting an impregnating material into the mold.
Claim 9
Dependent Claim
25 words
The method of claim 6 wherein the mold is evacuated prior to the injection of said material to force said material to penetrate said base.
Claim 10
Dependent Claim
29 words
The method of claim 7 wherein said material is a polymer, said base is a woven fabric, further comprising heating said mold. to cross-link said material to said base.
References Cited (Backward Citations)
GB2106557A
Cited
DE3318984A1
Cited
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