US3596333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for compressively shrinking woven textile fabrics
Assignee: Nippon Rayon Co Ltd
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Filing: 1969-09-08
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Granted: 1971-08-03
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Expires: 1989-09-08
Abstract
Abstract The present invention relates to a process and apparatus for treating a woven textile fabric, which comprises passing the fabric in its warp direction between at least a pair of rotatable cylindrical elastic rollers, whose surfaces make tight contact with each other, by compressing the rollers to increase its central portions relative to their ends and whose axes are curved with the same radius of curvature and in the same plane so as to shrink the fabric in its weft direction.
Inventors
- 👤 Motohiro Tsuruta
- 👤 Hiroshiro Kimura
- 👤 Akio Koshimo
- 👤 Hirohisa Nara
- 👤 Tokuji Goto
- 👤 Kunio Amemiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:05
CPC Classifications
D; D06; D06C; D06C3/00; D06C3/06; D06C21/00; D06C7/00; D06C7/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
23 words
Apparatus as claimed in claim 1 wherein the axes of said rollers have a radius of curvature of from 2 to 50 meters.
Claim 2
Dependent Claim
19 words
Apparatus as claimed in claim 1 wherein said cylindrical rollers have a diameter of from 50 to 500 millimeters.
Claim 3
Dependent Claim
16 words
Apparatus as claimed in claim 1 which has from 2 to 20 pairs of curved rollers.
Claim 4
Dependent Claim
28 words
Apparatus as claimed in claim 1 wherein the diameter of said cylindrical rollers gradually decrease from the fabric feed end to the fabric withdrawal end of said apParatus.
Claim 5
Dependent Claim
33 words
Apparatus as claimed in claim 1 where said compression means are adjustable as to vary the relative decrease of diameter of the end portions of said rollers as compared to the central portions.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |