Injection/blow moulding machine
Abstract
Abstract THE PRESENT INVENTION RELATES TO AN ILNFECTION/BLOW MOULDING MACHINE IN WHICH A TRANSFER OF THE PARISON STICKS RESPECTIVELY OF THE INJECTION MOULD AND A BLOW MOULD, IS EFFECTED BY A SIMULTANEOUS SWITCHING OF THE PARISON STICKS BETWEEN THE TWO MOULDS. THE SIMULTANEOUSWITCHING IS ACHIEVED BY CONNECTING THE PARISON STICKS TO CARRIES WHICH PASS ALONG A TRACK; THE TRACK BETWEEN THE INJECTION MOULD AND EACH BLOW MOULD BEING BRANCHED TO FORM TO A CLOSED LOOP GUARDED BY POINTS OR TRACK SWITCHES TO PERMIT THE SIMULTANEOUS PASSAGE OF CARRIERS THEREALONG IN OPPOSITE DIRECTIONS. WHEN THIS OPERATION IS COMPLETED, THE PARISON STICKS TRANSFERRED ARE DISCONNECTED FROM THE CARRIERS SO THAT THE TRANSFER MECHANISM IS LEFT FREE TO EFFECT A LIKE TRANSFER BETWEEN THE INJECTION MOULD AND A FURTHER BLOW MOULD.
Inventors
- 👤 Michael G Thorn
- 👤 William G Brackenridge
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |