US3593543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating fabrics from an organic solvent
Assignee: Dow Chemical Co
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Filing: 1969-05-26
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Granted: 1971-07-20
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Expires: 1989-05-26
Abstract
Abstract The present invention relates to an apparatus for treating fabrics from an organic solvent, e.g. dyeing, which apparatus comprises: A FORMULATION APPLICATION MODULE HAVING MEANS ASSOCIATED THEREWITH TO APPLY AN AGENT TO A FABRIC, A FIRST CHAMBER, IN FLUID COMMUNICATION WITH THE FORMULATION APPLICATION MODULE AND HAVING MEANS TO MAINTAIN A ZONE WITHIN THE CHAMBER FILLED WITH VAPORS OF AN ORGANIC SOLVENT, MEANS TO REMOVE SOLVENT VAPORS, AND MEANS, WHICH MAY BE THE SOLVENT VAPORS, TO EXCHANGE HEAT INTO THE FABRIC, A SECOND CHAMBER HAVING MEANS TO FLUSH AND WASH THE FABRIC, AND, A THIRD CHAMBER WHICH IS SUBSTANTIALLY IDENTICAL WITH THE FIRST SAID CHAMBER.
Inventors
- 👤 Sylvester Bergman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:22
CPC Classifications
D; D06; D06B; D06B9/00; D06B9/06; Y; Y02; Y02P; Y02P70/00; Y02P70/50; Y02P70/62
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
161 words
An apparatus for removing volatile organic solvent from base materials containing the same which comprises: a first chamber having means of ingress and egress to said chamber, means to maintain a zone within the chamber filled with superheated vapors of an organic solvent, means to condense the vapors of said solvent and to remove the condensate from said zone; a second chamber in fluid communication with said first chamber through an ingress and in fluid communication with a third chamber through an egress, having means to flush and wash the fabric consisting of series of spray nozzles located above a zone within said chamber which form a bath; and, a third chamber in fluid communication with the second said chamber having means of ingress and egress to said chamber, means to maintain a zone within the chamber filled with superheated vapors of an organic solvent, means to condense the vapors of said solvent and to remove the condensate from said zone.
Claim 2
Dependent Claim
65 words
a second chamber having: a. an ingress and egress to and from its interior, said ingress being in fluid communication with the egress of said first chamber, b. means within said second chamber to direct a textile web through said chamber, c. means associated with said chamber to provide a zone of liquid through which the web will pass during its course through the chamber;
Claim 3
Dependent Claim
102 words
a third chamber having: a. an ingress and fluid to and from its interior, said ingress being in fluid communication with said egress of said second chamber, b. means to condense a low boiling solvent vapor located below said ingress and egress and surrounding the interior walls of said chamber, c. means associated with said chamber to provide vapors of a low boiling solvent, d. means within said chamber to direct in a continuous manner a textile web through said chamber and maintain the web below the condensing means during a major portion of the travel of the web through said chamber.
Claim 4
Independent Claim
3 words
An apparatus comprising:
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |