US4932107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing open spaces in woven fabrics
Assignee: Mitsubishi Chemical Corp
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Filing: 1989-07-17
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Granted: 1990-06-12
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Expires: 2009-07-17
Abstract
Abstract Disclosed is a method wherein open spaces in woven fabrics useful as industrial materials, such as coated cloth and cloth for fiber-reinforced plastics, are reduced by allowing the woven fabrics to pass under pressure between a pair of rolls at least one of which vibrates in the axial direction thereof.
Inventors
- 👤 Hazime Gotoh
- 👤 Tadasi Yokoti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:16
CPC Classifications
D; D06; D06C; D06C21/00; D02; D02J; D02J1/00; D02J1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A method of reducing open spaces in woven fabrics each comprised of warp tows and weft tows, each of said tows including a plurality of filaments laid flat, comprising the steps of: feeding a woven fabric in a warp direction in which said warp tows are extended longitudinally so as to lead said woven fabric to a nip line between a pair of rolls; passing said woven fabric under pressure between said pair of rolls whose center axes extend substantially orthogonal to said warp direction, said nip line being parallel with said center axes; leading said woven fabric along said pair of rolls so as to cause said woven fabric to stick to each of said pair of rolls over at least one-sixth of an entire periphery thereof on both sides of said nip line; and oscillating at least one of said rolls axially thereof, relative to each other.
Claim 2
Independent Claim
149 words
A method of reducing open spaces in woven fabrics each comprised of warp tows and weft tows, each of said tows including a plurality of filaments laid flat, comprising the steps of: feeding a woven fabric in a warp direction in which said warp tows are extended longitudinally so as to lead said woven fabric to a nip line between a pair of rolls; passing said woven fabric under pressure between said pair of rolls whose center axes extend substantially orthogonal to said warp direction, said nip line being parallel with said center axes; leading said woven fabric along said pair of rolls so as to cause said woven fabric to stick to each of said pair of rolls over at least one-sixth of an entire periphery thereof on both sides of said nip line; and oscillating at least one of said rolls axially thereof, relative to each other.
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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) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |