Apparatus for hot runner injection moulding
Abstract
Abstract APPARATUS FOR HOT RUNNER INJECTION MOULDING COMPRISES A FIXED DIE PART AND A MOVABLE DIE PART, THE FIXED DIE PART AND THE MOVABLE DIE PART DEFINING THEREBETWEEN A DIE CAVITY. AN INJECTION NOZZLE IS CARRIED BY THE FIXED DIE PART AND A HOT RUNNER BOX HAVING THEREIN A PASSAGE COMMUNICATING WITH THE BORE IN THE INJECTION NOZZLE SO THAT IN USE MOLTEN SYNTHETIC RESIN FLOWS FROM A RESERVOIR THROUGH THE PASSAGE AND THE BORE IN THE INJECTION NOZZLE INTO THE DIE CAVITY. FURTHER THE APPARATUS INCLUDES RELEASABLE LATCH MEANS MOVABLE BETWEEN FIRST AND SECOND OPERATIVE POSITIONS, SUCH THAT IN THE FIRST OPERATIVE POSITION THE LATCH MEANS SECURES THE FIXED DIE PART TO THE HOT RUNNER BOX AND IN THE SECOND OPERATIVE POSITION THE LATCH MEANS SECURES THE FIXED DIE PART TO THE MOVABLE DIE PART SO THAT THE HOT RUNNER BOX CAN BE REMOVED WITHOUT DISTURBING THE FIXED DIE PART.
Inventors
- 👤 Anthony James Savory
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 |