Patent US3862822A successfully refreshed from Google Patents.
US3862822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for wet treating textile fabrics
Assignee: Kleinewefers Ind Cia GmbH
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Filing: 1972-09-07
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Granted: 1975-01-28
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Expires: 1992-09-07
Abstract
Abstract A method of and apparatus for wet treating textile fabrics according to which the fabrics are treated in an impregnating device and are subsequently wound upon a drum. While the fabrics are being wound upon the drum, weak lye solution is pumped upon or through the fabric upon the drum.
Inventors
- 👤 Gunter Schiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:23
CPC Classifications
D; D06; D06B; D06B7/00; D06B7/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
74 words
A METHOD OF WET TREATING TEXTILE FABRICS, ESPECIALLY FOR MERCERIZING AND BOILING, WHICH INCLUDES THE STEPS OF IMPREGNATING SAID FABRICS; WINDING UP THE IMPREGNATED FABRICS INTO A ROLL IN WHICH PRESSURE IS EXERTED UPON THE FABRIC; AND APPLYING A LYE SOLUTION HAVING A MAXIMUM OF 10 TO 20 BE (BAUME) SO THAT THE LYE SOLUTION PASSES ONTO OR THROUGH THE ROLL OF FABRIC; AND THE LYE SOLUTION HAVING A TEMPERATURE OF 5* TO 85*C.
Claim 2
Independent Claim
74 words
A METHOD OF WET TREATING TEXTILE FABRICS, ESPECIALLY FOR MERCERIZING AND BOILING, WHICH INCLUDES THE STEPS OF IMPREGNATING SAID FABRICS; WINDING UP THE IMPREGNATED FABRICS INTO A ROLL IN WHICH PRESSURE IS EXERTED UPON THE FABRIC; AND APPLYING A LYE SOLUTION HAVING A MAXIMUM OF 10 TO 20 BE (BAUME) SO THAT THE LYE SOLUTION PASSES ONTO OR THROUGH THE ROLL OF FABRIC; AND THE LYE SOLUTION HAVING A TEMPERATURE OF 5* TO 85*C.
Claim 3
Dependent Claim
34 words
A method of wet treating textile fabrics according to claim 1, in which said weak lye solution is applied to only a section at a time of fabrics being wound up into a roll.
References Cited (Backward Citations)
US3391552A
Cited
US3643474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |