US3487504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion device
Assignee: GLASS LAB CO
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Filing: 1966-04-11
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Granted: 1970-01-06
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Expires: 1986-04-11
Abstract
No abstract record available.
Inventors
- 👤 Abraham Shanok
- 👤 Victor Shanok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:59
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/03; B29C48/07; B29C48/08; B29C48/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN EXTRUSION DEVICE ADAPTED TO ENCAPSULATE A FLEXIBLE STRIP OF THIN MATERIAL AN ENVELOPE OF SYNTHETIC RESIN CONSISTING ESSENTIALLY OF A CROSSHEAD HAVING AN INLET FOR THE RECEPTION OF FLUID PLASTIC, AN ENLARGED PASSAGEWAY TRANSVERSELY COMMUINICATING WITH THE INLET, AND A HORIZONTALLY DISPOSED EXTRUSION DIE HOLE COMMUNICATING WITH ONE END OF THE PASSAGEWAY, IN COMBINATION WITH MEANS FOR GUIDING A THIN STRIP OF MATERIAL THROUGH A PORTION OF THE PASSAGEWAY, AND MEANS FOR FORMING A REFLEX FLOW RING IN THE FLUID PLASTIC TO SUPPORT THE STRIP MATERIAL AS IT ENTERS THE EXTRUSION DIE HOLE AND BUFFER THE FLOW SPEED FLUID MATERIAL IN THE CROSSHEAD.
Claim 2
Dependent Claim
104 words
AN EXTRUSION DEVICE ADAPTED TO ENCAPSULATE A FLEXIBLE STRIP OF THIN MATERIAL AN ENVELOPE OF SYNTHETIC RESIN CONSISTING ESSENTIALLY OF A CROSSHEAD HAVING AN INLET FOR THE RECEPTION OF FLUID PLASTIC, AN ENLARGED PASSAGEWAY TRANSVERSELY COMMUINICATING WITH THE INLET, AND A HORIZONTALLY DISPOSED EXTRUSION DIE HOLE COMMUNICATING WITH ONE END OF THE PASSAGEWAY, IN COMBINATION WITH MEANS FOR GUIDING A THIN STRIP OF MATERIAL THROUGH A PORTION OF THE PASSAGEWAY, AND MEANS FOR FORMING A REFLEX FLOW RING IN THE FLUID PLASTIC TO SUPPORT THE STRIP MATERIAL AS IT ENTERS THE EXTRUSION DIE HOLE AND BUFFER THE FLOW SPEED FLUID MATERIAL IN THE CROSSHEAD.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |