Glass forming machine
Abstract
Abstract A MACHINE FOR FORMING HOLLOW GLASS ARTICLES WHICH COMPRISES A ROTATING TURRET CARRYING A PLUALITY OF MOLDS, A CHARGING CHUTE FOR FILLING THE MOLDS WITH MOLTEN GLASS, A PLUNGER OR BLOWPIPE FOR FORMING THE CHARGE INTO A SHAPE, AND A PUSH ROD FOR EJECTING THE FORMED GLASS FROM THE MOLDS. A CONTROL UNIT IS INDEXABLE INTERMITTENTLY INTO A PLURALITY OF POSITIONS EQUAL TO THE NUMBER OF MOLDS. THE UNIT COMPRISES A PLURALITY OF PINS WHICH ARE MOUNTED IN A RATCHET WHEEL. EACH PIN CORRESPONDS TO A SPECIFIC MOLD AND IS MOVED INTO OPERATIVE POSITION BY CONTACT WITH A LEVER ATTACHED TO A SOLENOID. THE SOLENOID IS COUPLED TO AN INFRARED DETECTOR HEAD WHICH IS SITUATED BETWEEN THE REMOVAL STATION AND CHARGING STATION, AND WHICH DETERMINES THE PRESENCE OF A FILLED MOLD AND PASSES A SIGNAL TO THE SOLENOID, WHICH THROUGH THE LEVER ACTUATES THE PIN. THE PIN IN ITS OPERATIVE POSITION THEN CONTACTS A SWITHC WHICH CAUSES EITHER THE MOLD CHARGER OR ARTICLE FORMER NOT TO OPERATE IN CONJUNCTION WITH THE FILLED MOLD.
Inventors
- 👤 Cyril Grundy
- 👤 John Bradley Stow
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |