Mold-closing means for molding machines
Abstract
Abstract A MACHINE FOR COMPRESSION OR INJECTION MOLDING HAS A FLUID-OPERATED PRESSURE INTENSIFIER INSERTED BETWEEN A FIXED END PLATE AND A MOVABLE PLATEN RIDING ON TIE BARS BETWEEN THAT END PLATE AND A CO-OPERATING STATIONARY PLATEN, THE PRESSURE INTENSIFIER ACTING THROUGH AN INTERPOSED PRESSURE PIECE UPON CLOSURE OF THE MOLD FORMED BY TWO HALVES CARRIED ON THESE PLATENS. THE PRESSURE PIECE CONSISTS OF TWO PARTS OF SUBSTANTIALLY THE SAME AXIAL LENGTH, EITHER OR BOTH OF WHICH MAY BE EXTENSIBLE, AT LEAST ONE OF WHICH IS SLIDABLY GUIDED FOR TRANSVERSE MOVEMENT OUT OF ALIGNMENT WITH THE OTHER PART PREPATORILY TO AN OPENING OF THE MOLD. WITH THE MOLD OPEN, THE TWO PARTS LIE ALONGSIDE EACH OTHER IN THE SPACE BETWEEN THE END PLATE AND THE MOVABLE PLATEN.
Inventors
- 👤 Wilhelm Cyriax
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |