US3260383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for loading and unloading a high vacuum process chamber
Assignee: Vacuum Processes Inc
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Filing: 1964-08-04
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Granted: 1966-07-12
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Expires: 1984-08-04
Abstract
No abstract record available.
Inventors
- 👤 John J Fitzgerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:25
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/30; H10P72/33; H10P72/3306; F; F26; F26B; F26B5/00; F26B5/04; F26B5/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF PASSING AN ARTICLE INTO OR OUT OF A VACUUM CHAMBER COMPRISING, DEPOSITING THE ARTICLE IN A RECESS BELOW THE SURFACE OF A CARRIER, ROTATING THE SURFACE OF THE CARRIER WITHIN THE ARTICLE IS DISPOSED PAST A SEAL INTO AN ENCLOSED CHAMBER; ROTATING THE SURFACE OF THE CARRIER WITHIN WHICH THE ARTICLE IS DISPOSED PAST ANOTHER SEAL AT THE OTHER SIDE OF THE ENCLOSED CHAMBER; REMOVING THE ARTICLE FROM THE CARRIER; AND DRAWING A VACUUM ON THE ENCLOSED CHAMBER WHILE THE SURFACE OF THE CARRIER IS BEING ROTATED THERETHROUGH
Claim 2
Dependent Claim
86 words
IN A DEVICE FOR PASSING AN ARTICLE INTO OR OUT OF A VACUUM CHAMBER COMPRISING, AN EVACUATED AREA HAVING AN ENTRY PASSAGE AND AN OUTLET PASSAGE THEREINTO AT SEPARATED POINTS, A RESILIENT SEAL SURROUNDING EACH PASSAGE; A ROTARY CARRIER ROTATABLE THROUGH THE EVACUTATED AREA AND PAST THE PASSAGES, WITH THE SURFACES OF THE CARRIER BEING IN SLIDABLE SEALING CONTACT WITH THE SEALS; AND AN ARTICLE RECEIVING RECESS IN THE SURFACE OF THE CARRIER IN POSITION TO BE ROTATED PAST THE SEALS AND THROUGH THE EVACUATED AREA.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |