US3556759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic control system for vacuum cut-off in a burn-off machine
Assignee: Anchor Hocking LLC
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Filing: 1968-03-12
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Granted: 1971-01-19
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Expires: 1988-03-12
Abstract
Abstract A FLUIDIC CONTROL SYSTEM FOR CUTTING OFF THE VACUUM SUPPLY TO A WARE-HOLDING CHUCH IN A GLASS BURN-OFF MACHINE IN THE ABSENCE OF WARE IN THE CHUCK. THE SYSTEM COMPRISES A MECHANICAL SWITCH WHICH ADMITS PRESSURE TO A FLUID CIRCUIT IN CONJUNCTION WITH THE OPENING OF THE VACUUM CONTROL VALVE AT THE WARE LOADING ZONE; A MECHANICALLY OPERATED FLUID SWITCH FOR SENSING WHETHER WARE IS PRESENT AT THE PICK-UP STATION AND PROVIDING AN APPROPRIATE SIGNAL TO SAID CIRCUIT; AND A SERIES OF FLUID AMPLIFYING SWITCHES IN THE CIRCUIT WHCIH ACTUATE AN AIR CYLINDER TO CLOSE THE VACUUM CONTROL VALVE WHEN A NO-WARE SIGNAL IS RECEIVED FROM THE WARE-SENSING SWITCH.
Inventors
- 👤 James F Cotter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:58
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/08; C03B33/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
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 |