Patent US2225870A successfully refreshed from Google Patents.
US3346918A
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Extrusion die
Assignee: Rhone Poulenc SA
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Filing: 1965-10-14
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Granted: 1967-10-17
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Expires: 1985-10-14
Abstract
No abstract record available.
Inventors
- 👤 Deleuze Antoine
- 👤 Gulling Roger Georges Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:31
CPC Classifications
B; B28; B28B; B28B3/00; B28B3/20; B28B3/26; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/12; B29C48/25; B29C48/30; B29C48/302; B29C48/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A MACHINE FOR EXTRUSION OF A PROFILE A VARIABLE SECTION, AN EXTRUSION DIE COMPRISING A BODY HAVING A BORE PASSING THERETHROUGH AND TERMINATING AT AN END FACE, SAID BODY DEFINING A MAJOR PORTION OF AN EXTRUSION ORIFICE OF SAID DIE AT SAID END FACE, AT LEAST ONECHAMBER FORMED IN THE END FACE OF SAID BODY WITH THE INNER END OF SAID CHAMBER OPENING INTO SAID EXTRUSION ORIFICE, EACH SAID CHAMBER EXTENDING TRANSVERSELY OF SAID EXTRUSION ORIFICE, AT LEAST BER OPENING INTO SAID EXTRUSION ORIFICE, EACH SAID CHAMBER AND DEFINING THE REMAINDER OF SAID EXTRUSION ORIFICE, AND MEANS FOR DISPLACING SAID PISTON IN SAID CHAMBER WITH RESPECT TO THE INNER END THEREOF TO THEREBY CHANGE THE DIMENSIONS AND CROSS-SECTION OF THE EXTRUSION ORIFICE.
Claim 2
Dependent Claim
123 words
IN A MACHINE FOR EXTRUSION OF A PROFILE A VARIABLE SECTION, AN EXTRUSION DIE COMPRISING A BODY HAVING A BORE PASSING THERETHROUGH AND TERMINATING AT AN END FACE, SAID BODY DEFINING A MAJOR PORTION OF AN EXTRUSION ORIFICE OF SAID DIE AT SAID END FACE, AT LEAST ONECHAMBER FORMED IN THE END FACE OF SAID BODY WITH THE INNER END OF SAID CHAMBER OPENING INTO SAID EXTRUSION ORIFICE, EACH SAID CHAMBER EXTENDING TRANSVERSELY OF SAID EXTRUSION ORIFICE, AT LEAST BER OPENING INTO SAID EXTRUSION ORIFICE, EACH SAID CHAMBER AND DEFINING THE REMAINDER OF SAID EXTRUSION ORIFICE, AND MEANS FOR DISPLACING SAID PISTON IN SAID CHAMBER WITH RESPECT TO THE INNER END THEREOF TO THEREBY CHANGE THE DIMENSIONS AND CROSS-SECTION OF THE EXTRUSION ORIFICE.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |