US2979431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus of producing re-enforced thermoplastic bodies
Assignee: RALPH T HAYS
•
Filing: 1956-03-14
•
Granted: 1961-04-11
•
Expires: 1976-03-14
Abstract
No abstract record available.
Inventors
- 👤 Perrault Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:01
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/15; B29C48/156; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
THE PROCESS OF FORMING RE-ENFORCED THERMOPLASTIC BODIES WHICH CONSISTS OF KNEADING HEATED THERMOPLASTIC GRANULES INTO A THERMOPLASTIC MASS, SIMULTANEOUSLY DIPPING AN ELONGATED FILLER WITH A THERMOSETTING RESIN CHARACTERIZED BY PROVIDING A LOW ORDER SHRINKAGE DURING CURING TO PRECLUDE DISCHARGE OF VOLATILES, AND IMPREGNATING THE VOIDS BETWEEN THE FILLER WITH THE THERMOSETTING RESIN, FEEDING THE IMPREGNATED FILLER INTO CONTACT WITH THE THERMOPLASTIC MASS FOR BONDING THE THERMOPLASTIC MASS WITH THE FILLER, UNIFORMLY IMPREGNATING THE THERMOPLASTIC AROUND THE RESIN DIPPED FILLER AS THE FILLER IS FED INTO CONTACT WITH THE MASS, EXTRUDING THE RE-ENFORCED THERMOPLASTIC THROUGH A CONSTRICTED ORIFICE, FORMING THE EXTRUDED RE-ENFORCED THERMOPLASTIC MASS AND LAMINATING THE RE-ENFORCED PATTERNS BY HEATING AND COMPRESSION TO COMPLETE THE FINAL THERMOSETTING OF THE RESIN TO PROVIDE A RE-ENFORCED BODY OF HIGH TENSILE STRENGTH.
Claim 2
Dependent Claim
129 words
THE PROCESS OF FORMING RE-ENFORCED THERMOPLASTIC BODIES WHICH CONSISTS OF KNEADING HEATED THERMOPLASTIC GRANULES INTO A THERMOPLASTIC MASS, SIMULTANEOUSLY DIPPING AN ELONGATED FILLER WITH A THERMOSETTING RESIN CHARACTERIZED BY PROVIDING A LOW ORDER SHRINKAGE DURING CURING TO PRECLUDE DISCHARGE OF VOLATILES, AND IMPREGNATING THE VOIDS BETWEEN THE FILLER WITH THE THERMOSETTING RESIN, FEEDING THE IMPREGNATED FILLER INTO CONTACT WITH THE THERMOPLASTIC MASS FOR BONDING THE THERMOPLASTIC MASS WITH THE FILLER, UNIFORMLY IMPREGNATING THE THERMOPLASTIC AROUND THE RESIN DIPPED FILLER AS THE FILLER IS FED INTO CONTACT WITH THE MASS, EXTRUDING THE RE-ENFORCED THERMOPLASTIC THROUGH A CONSTRICTED ORIFICE, FORMING THE EXTRUDED RE-ENFORCED THERMOPLASTIC MASS AND LAMINATING THE RE-ENFORCED PATTERNS BY HEATING AND COMPRESSION TO COMPLETE THE FINAL THERMOSETTING OF THE RESIN TO PROVIDE A RE-ENFORCED BODY OF HIGH TENSILE STRENGTH.
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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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |