US2560022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Readily adjustable extrusion device
Assignee: Bridgestone Firestone Inc
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Filing: 1947-03-26
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Granted: 1951-07-10
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Expires: 1967-03-26
Abstract
No abstract record available.
Inventors
- 👤 Conrad G Formaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:53
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/03; B29C48/07; B29C48/12; B29C48/09; B29L; B29L2030/00; B29L2030/002; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
AN EXTRUSION HEAD FOR AN EXTRUSION MACHINE, SAID HEAD COMPRISING A SUBSTANTIALLY TUBULAR MEMBER HAVING A CHAMBER EXTENDING THERETHROUGH OF CIRCULAR CROSS SECTION AT ONE END FOR CONNECTING TO THE REMAINDER OF AN EXTRUSION MACHINE, SAID CHAMBER BEING APPRECIABLY LONGER AND NARROWER AT THE OPPOSITE END FOR SHAPING THE MATERIAL FLOWING THERETHROUGH, SAID CHAMBER HAVING A PAIR OF DIAMETRICALLY OPPOSED LONGITUDINALLY DIRECTED RECESSES EXTENDING SUBSTANTIALLY THE LENGTH THEREOF, AND A PAIR OF BAFFLE MEMBERS REMOVABLY POSITIONED IN AND ENGAGED WITH THE RECESSES IN SAID TUBULAR MEMBER BUT EXTENDING INTO SAID CHAMBER WHEREBY ANY OF A PLURALITY OF DIFFERENTLY CONTOURED BAFFLE MEMBERS CAN BE POSITIONED IN SAID TUBULAR MEMBER TO VARY THE FLOW OF MATERIAL THROUGH SAID CHAMBER.
Claim 2
Dependent Claim
117 words
AN EXTRUSION HEAD FOR AN EXTRUSION MACHINE, SAID HEAD COMPRISING A SUBSTANTIALLY TUBULAR MEMBER HAVING A CHAMBER EXTENDING THERETHROUGH OF CIRCULAR CROSS SECTION AT ONE END FOR CONNECTING TO THE REMAINDER OF AN EXTRUSION MACHINE, SAID CHAMBER BEING APPRECIABLY LONGER AND NARROWER AT THE OPPOSITE END FOR SHAPING THE MATERIAL FLOWING THERETHROUGH, SAID CHAMBER HAVING A PAIR OF DIAMETRICALLY OPPOSED LONGITUDINALLY DIRECTED RECESSES EXTENDING SUBSTANTIALLY THE LENGTH THEREOF, AND A PAIR OF BAFFLE MEMBERS REMOVABLY POSITIONED IN AND ENGAGED WITH THE RECESSES IN SAID TUBULAR MEMBER BUT EXTENDING INTO SAID CHAMBER WHEREBY ANY OF A PLURALITY OF DIFFERENTLY CONTOURED BAFFLE MEMBERS CAN BE POSITIONED IN SAID TUBULAR MEMBER TO VARY THE FLOW OF MATERIAL THROUGH SAID CHAMBER.
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) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |