Patent US4847116A successfully refreshed from Google Patents.
US4847116A
Expired / Lapsed
US
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Method for depositing particles and a binder system on a base fabric
Assignee: Albany International Corp
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Filing: 1988-05-09
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Granted: 1989-07-11
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Expires: 2008-05-09
Abstract
Abstract This invention consists of a method to produce a composite wet-press papermakers felt by which one side of a textile base fabric can be given a uniform, smooth coating of polymeric resin particles fused together to provide a porous, elastic surface. Its distinguishing feature is the application to the textile base fabric of a homogeneous foam, composed of resin particles, a binder material, and a solvent, in a uniformly thick coating. The textile base fabric is then subjected to heat, which evaporates the solvent and fuses the resin particles to each other and to the fabric base.
Inventors
- 👤 William H. Duit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:42
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/08; D21F7/083; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/699
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A method of manufacturing a composite wet-press felt fabric, which comprises: providing a wet-press felt base fabric of interwoven machine direction and cross-machine direction yarns; depositing a homogeneous foam of polymeric resin particles, binder material, and a solvent on a surface of the base fabric; distributing the foam on the surface of the base fabric in a uniformly thick layer; and applying a heat treatment to the base fabric to evaporate the solvent in the foam, to fuse the polymeric resin particles to each other and to the base fabric, and to cure the binder material.
Claim 2
Independent Claim
96 words
A method of manufacturing a composite wet-press felt fabric, which comprises: providing a wet-press felt base fabric of interwoven machine direction and cross-machine direction yarns; depositing a homogeneous foam of polymeric resin particles, binder material, and a solvent on a surface of the base fabric; distributing the foam on the surface of the base fabric in a uniformly thick layer; and applying a heat treatment to the base fabric to evaporate the solvent in the foam, to fuse the polymeric resin particles to each other and to the base fabric, and to cure the binder material.
References Cited (Backward Citations)
US4357386A
Cited
US4571359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |