Injection molding apparatus
Abstract
Abstract AN INJECTION MOLDING APPARATUS HAVING A PLURALITY OF MOLDING UNITS EMBOYDING A SOLE MOLD MOVABLE FROM A FIRST POSITION DEFINING A FIRST MOLDING CAVITY TO A SECOND POSITION DEFINING A SECOND MOLDING CAVITY. MECHANISM IS PROVIDED FOR BRINGING SUCESSIVE MOLDING UNITS INTO COMMUNCATION WITH A FIRST INJECTOR AND THEREAFTER WITH A SECOND INJECTOR, WITH THE FIRST INJECTOR INTRODUCING A MOLDING MATERIAL INTO THE FIRST MOLDING CAVITY THROUGH A SINGLE CHANNEL IN THE SOLE MOLD AND THE SECOND INJECTOR INTRODUCING A SECOND MOLDING MATERIAL INTO THE SECOND MOLDING CAVITY THROUGH THE SAME CHANNEL. THE SOLE MOLD IS MOVED FROM ITS FIRST TO ITS SECOND POSITION DURING TRAVEL OF THE MOLDING UNITS FROM THE FIRST INJECTOR TO THE SECOND INJECTOR.
Inventors
- 👤 William Chu
- 👤 Guy Rudolf
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |