US3714925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum processing machine
Assignee: Motors Liquidation Co
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Filing: 1971-07-30
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Granted: 1973-02-06
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Expires: 1991-07-30
Abstract
Abstract A VACUUM PROCESSING MACHINE WHEREIN AN EVACUATED ENCLOSURE HOUSES A SERIES OF INTERMESHING TWO-LOBE ROTORS WHICH ARE ALTERNATELY OSCILLATED A HALF-REGOLUTION TO THEREBY CIRCUMFERENTIALLY SHIFT LENTICULAR CARRIER BOATS RECEIVED WITHIN CONCAVE RECESSES BETWEEN THE LOBES TO A TRANSFER POSITION BETWEEN THE ROTORS. THE LOBES OF THE SUCCEEDING ROTORS SWEEP THE RECESSES TO THEREBY SHIFT THE CARRIER BOATS TO THE NEXT ADVANCED TRANSFER POSITION WHEREBY PARTS NESTED ON THE CARRIER BOASTS ARE BIDIRECTIONALLY SHIFTED ALONG A COMMON ENTRANCE AND EXIT PATH IN A SERIES OF ARCS BETWEEN HANDLING AND PROCESSING STATIONS AT OPPOSITE ENDS OF THE ENCLOSURE.
Inventors
- 👤 E Helm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:38
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/568; B; B65; B65G; B65G35/00; B65G2812/00; B65G2812/99
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |