US3157808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High vacuum apparatus
Assignee: Varian Medical Systems Inc
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Filing: 1960-12-30
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Granted: 1964-11-17
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 William A Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:11
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/10; H02K49/104; H02K49/106; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
APPARATUS FOR TRANSMITTING MOTION INTO A HIGH VACUUM SYSTEM COMPRISING A CYLINDRICAL HOUSING, SAID CYLINDRICAL HOUSING HAVING A CLOSED END AND AN OPEN END ADAPTED TO COMMUNICATE WITH AN OPENING IN THE VACUUM WALL OF A HIGH VACUUM CHAMBER, SUPPORTING MEANS ADAPTED TO SUPPORT SAID CYLINDRICAL HOUSING OUTSIDE THE VACUUM CHAMBER BY ATTACHMENT TO THE VACUUM WALL, SAID CYLINDRICAL HOUSING ADAPTED TO FORM WITH THE VACUUM WALL A CONTINUOUS VACUUM TIGHT ENCLOSURE UPON ATTACHMENT THERTO, A CUP-SHAPED DRIVING MEANS INCLUDING A PARMANENT MAGNET, THE EXTERNAL SURFACE OF SAID CUP-SHAPED DRIVING MEANS FORMING A CIRCUMFERENTIAL GROOVE ADAPTED TO ACCOMMODATE A BELT DRIVE FOR SUPPLYING POWER THERETO, A DRIVEN MEANS INCLUDING A MAGNETIC ROTOR ADAPTED TO TRANSMIT MOTION INTO THE VACUUM CHAMBER IN RESPONSE TO MOVEMENT OF SAID CUP-SHAPED DRIVING MEANS, SAID DRIVEN MEANS POSITIONED WITHIN SAID CYLINDRICAL HOUSING, SAID CUP-SHAPED DRIVING MEANS ROTATABLY MOUNTED ON SAID CYLINDRICAL HOUSING AND ADAPTED FOR EASY REMOVAL SO AS TO ALLOW HIGH TEMPERATURE BAKING OF SAID CYLINDRICAL HOUSING AND SAID DRIVEN MEANS, AND ADJUSTABLE MECHANICAL LOCKING MEANS FOR PREVENTING ROTARY MOVEMENT OF SAID CUP-SHAPED DRIVING MEANS.
Claim 2
Dependent Claim
181 words
APPARATUS FOR TRANSMITTING MOTION INTO A HIGH VACUUM SYSTEM COMPRISING A CYLINDRICAL HOUSING, SAID CYLINDRICAL HOUSING HAVING A CLOSED END AND AN OPEN END ADAPTED TO COMMUNICATE WITH AN OPENING IN THE VACUUM WALL OF A HIGH VACUUM CHAMBER, SUPPORTING MEANS ADAPTED TO SUPPORT SAID CYLINDRICAL HOUSING OUTSIDE THE VACUUM CHAMBER BY ATTACHMENT TO THE VACUUM WALL, SAID CYLINDRICAL HOUSING ADAPTED TO FORM WITH THE VACUUM WALL A CONTINUOUS VACUUM TIGHT ENCLOSURE UPON ATTACHMENT THERTO, A CUP-SHAPED DRIVING MEANS INCLUDING A PARMANENT MAGNET, THE EXTERNAL SURFACE OF SAID CUP-SHAPED DRIVING MEANS FORMING A CIRCUMFERENTIAL GROOVE ADAPTED TO ACCOMMODATE A BELT DRIVE FOR SUPPLYING POWER THERETO, A DRIVEN MEANS INCLUDING A MAGNETIC ROTOR ADAPTED TO TRANSMIT MOTION INTO THE VACUUM CHAMBER IN RESPONSE TO MOVEMENT OF SAID CUP-SHAPED DRIVING MEANS, SAID DRIVEN MEANS POSITIONED WITHIN SAID CYLINDRICAL HOUSING, SAID CUP-SHAPED DRIVING MEANS ROTATABLY MOUNTED ON SAID CYLINDRICAL HOUSING AND ADAPTED FOR EASY REMOVAL SO AS TO ALLOW HIGH TEMPERATURE BAKING OF SAID CYLINDRICAL HOUSING AND SAID DRIVEN MEANS, AND ADJUSTABLE MECHANICAL LOCKING MEANS FOR PREVENTING ROTARY MOVEMENT OF SAID CUP-SHAPED DRIVING MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |