US3360600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor source assembly
Assignee: Airco Inc
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Filing: 1966-07-13
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Granted: 1967-12-26
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Expires: 1986-07-13
Abstract
No abstract record available.
Inventors
- 👤 Bois Andrew Oakley Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:08
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A SHAFT AND SUPPORTING ASSEMBLY FOR MAINTAINING A PLURLITY OF REGIONS OF DIFFERENT PRESSURES AT THE PERIPHERY OF A ROTATING SHAFT INTERMEDIATE THE ENDS THEREOF, WHICH SHAFT EXTENDS BETWEEN TWO REGIONS OF A RELATIVELY HIGH VACUUM, SAID ASSEMBLY INCLUDING IN COMBINATION: A ROTARY SHAFT, A HOUSING ENCLOSING SAID SHAFT AND ADAPTED FOR AT LEAST PARTIALLY ENCLOSING THE HIGH VACUUM REGIONS, A PLURALITY OF ANNULAR SEAL MEANS SPACED AXIALLY ALONG, SAID SHAFT BETWEEN THE PERIPHERY THEREOF AND SAID HOUSING, SAID SEAL MEANS DEFINING A PLURLITY OF PRESSURE CONFINING CHAMBERS FOR MAINTAINING REGIONS OF DIFFERENT PRESSURES AT THE PERIPHERY OF THE SHAFT, SAID SEAL MEANS INCLUDING FIRST AND SECOND SEAL MEANS POSITIONED TO BE ADJACENT, RESPECTIVELY, TWO HIGH VACUUM REGIONS, SAID FIRST AND SECOND SEAL MEANS EACH COMPRISING A PAIR OF AXIALY SPACED
Claim 2
Dependent Claim
131 words
A SHAFT AND SUPPORTING ASSEMBLY FOR MAINTAINING A PLURLITY OF REGIONS OF DIFFERENT PRESSURES AT THE PERIPHERY OF A ROTATING SHAFT INTERMEDIATE THE ENDS THEREOF, WHICH SHAFT EXTENDS BETWEEN TWO REGIONS OF A RELATIVELY HIGH VACUUM, SAID ASSEMBLY INCLUDING IN COMBINATION: A ROTARY SHAFT, A HOUSING ENCLOSING SAID SHAFT AND ADAPTED FOR AT LEAST PARTIALLY ENCLOSING THE HIGH VACUUM REGIONS, A PLURALITY OF ANNULAR SEAL MEANS SPACED AXIALLY ALONG, SAID SHAFT BETWEEN THE PERIPHERY THEREOF AND SAID HOUSING, SAID SEAL MEANS DEFINING A PLURLITY OF PRESSURE CONFINING CHAMBERS FOR MAINTAINING REGIONS OF DIFFERENT PRESSURES AT THE PERIPHERY OF THE SHAFT, SAID SEAL MEANS INCLUDING FIRST AND SECOND SEAL MEANS POSITIONED TO BE ADJACENT, RESPECTIVELY, TWO HIGH VACUUM REGIONS, SAID FIRST AND SECOND SEAL MEANS EACH COMPRISING A PAIR OF AXIALY SPACED
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |