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US3134832A
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Method for producing extruded articles
Assignee: Dow Silicones Corp
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Filing: 1962-02-16
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Granted: 1964-05-26
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Expires: 1982-02-16
Abstract
No abstract record available.
Inventors
- 👤 Holland A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:44
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/325; B29C48/03; B29C48/06; B29C48/09; Y; Y10; Y10S; Y10S425/00; Y10S425/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD OF PRODUCING CIRCULAR EXTRUDED ARTICLES WHICH COMPRISES EXTRUDING A FEED MATERIAL THROUGH THE EXTRUSION APERTURE OF A VARIABLE CIRCULAR CONSTRICTION WHICH IS COMPOSED OF AN ELASTOMERIC MATERIAL, THE CIRCULAR EXTRUDED ARTICLE BEING SHAPED BY SAID CIRCULAR CONSTRICTION, AND REGULATING THE PRESSURE UPON THE ELASTOMERIC MATERIAL IN ORDER TO CAUSE THE UNIFORM DEFORMATION OF SAID ELASTOMERIC MATERIAL SO THAT THE CIRCULAR EXTRUSION APERTURE IS UNIFORMLY ALTERED IN SIZE RESULTING IN A UNIFORM ALTERATION IN THE SIZE OF THE CIRCULAR EXTRUDED ARTICLE.
Claim 2
Independent Claim
82 words
A METHOD OF PRODUCING CIRCULAR EXTRUDED ARTICLES WHICH COMPRISES EXTRUDING A FEED MATERIAL THROUGH THE EXTRUSION APERTURE OF A VARIABLE CIRCULAR CONSTRICTION WHICH IS COMPOSED OF AN ELASTOMERIC MATERIAL, THE CIRCULAR EXTRUDED ARTICLE BEING SHAPED BY SAID CIRCULAR CONSTRICTION, AND REGULATING THE PRESSURE UPON THE ELASTOMERIC MATERIAL IN ORDER TO CAUSE THE UNIFORM DEFORMATION OF SAID ELASTOMERIC MATERIAL SO THAT THE CIRCULAR EXTRUSION APERTURE IS UNIFORMLY ALTERED IN SIZE RESULTING IN A UNIFORM ALTERATION IN THE SIZE OF THE CIRCULAR EXTRUDED ARTICLE.
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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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |