US2814075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating waste latex foam
Assignee: Dasher Rubber and Chemical Co
•
Filing: 1954-09-08
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Granted: 1957-11-26
•
Expires: 1974-09-08
Abstract
No abstract record available.
Inventors
- 👤 Paul J Dasher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:41
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/06; C08J3/00; C08J3/12; C08J3/124; C08J2321/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S521/00; Y10S521/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS OF TREATING WET, COAGULATED, SUBSTANTIALLY UNVULCANIZED LATEX FOAM, WHICH COMRPISES SUBJECTING THE SAME TO AN INTENSE SHEARING ACTION WHILE HELD UNDER MECHANICAL COMPRESSION SUFFICIENT TO DEVELOP AN ENERGY INPUT AVERAGING NOT LESS THAN ABOUT 0.7 HORSEPOWER PER POUND OF MATERIAL BEING TREATED OV ER A PERIOD OF TIME OF THE ORDER OF 2 TO 10 MINUTES WHEREBY TO CAUSE SAID MECHANICAL ACTION TO REDUCE THE MASS TO THE FORM OF FINELY DIVIDED PARTICLES, AND MAINTAINING THE MASS DURING SUCH TREATMENT AT TEMPERATURES NOT SUBSTANTIALLY IN EXCESS OF 330*F.
Claim 2
Dependent Claim
90 words
A PROCESS OF TREATING WET, COAGULATED, SUBSTANTIALLY UNVULCANIZED LATEX FOAM, WHICH COMRPISES SUBJECTING THE SAME TO AN INTENSE SHEARING ACTION WHILE HELD UNDER MECHANICAL COMPRESSION SUFFICIENT TO DEVELOP AN ENERGY INPUT AVERAGING NOT LESS THAN ABOUT 0.7 HORSEPOWER PER POUND OF MATERIAL BEING TREATED OV ER A PERIOD OF TIME OF THE ORDER OF 2 TO 10 MINUTES WHEREBY TO CAUSE SAID MECHANICAL ACTION TO REDUCE THE MASS TO THE FORM OF FINELY DIVIDED PARTICLES, AND MAINTAINING THE MASS DURING SUCH TREATMENT AT TEMPERATURES NOT SUBSTANTIALLY IN EXCESS OF 330*F.
References Cited (Backward Citations)
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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) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |