Thermoplastic material pressing apparatus
Abstract
Abstract APPARATUS FOR USE IN PRESS-FORMING THERMOPLASTIC MATERIAL AND COMPRISING A MOLD OR MOLD ASSEMBLY INCLUDING A RELATIVELY THIN-WALLED FIRST MOLD MEMBER OR INSERT HAVING A SURFACE NOT CONTACTED BY SAID MATERIAL AND A SECOND OR BACK-UP MEMBER HAVING A RELATIVELY MASSIVE PORTION INCLUDING A SURFACE PRECISELY CONFORMING TO SAID SURFACE OF THE FIRST MEMBER, SUCH MEMBERS BEING SUPPORTED FOR ACTUATION THEREOF BETWEEN A FIRST OR PARTIALLY NESTED RELATIONSHIP, ONE WITHIN THE OTHER, WITH SAID SURFACES FACING AND SPACED APART FROM EACH OTHER, AND A SECOND OR FULLY NESTED RELATIONSHIP IN WHICH SAID SURFACES ARE INTIMATE CONTACT FOR HEAT TRANSFER AND DEFORMATION RESISTANCE PURPOSES. SAID BACK UP MEMBER EMBODIES A PLURALITY OF PASSAGES EXTENDING THROUGH SAID PORTION THEREOF FOR AT TIMES SUPPLYING THERMAL CONDITIONING FLUID TO THE SPACE EXISTING BETWEEN SAID SURFACES WHEN SAID MEMBERS ARE IN OTHER THAN THEIR FULLY NESTED RELATIONSHIP.
Inventors
- 👤 Arieh Carmi
- 👤 Thomas J Rayeski
- 👤 George D Parsons
Bibliographic Details
Claims Analysis
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |