US3192728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cooler for protective suits
Assignee: MSA Safety Inc
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Filing: 1964-06-09
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Granted: 1965-07-06
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Timm Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:40
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/02; F25B9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
AN AIR COOLER COMPRISING: A VORTEX TUBE HAVING AN AIR PASSAGE; A TUBULAR VALVE WITHIN SAID VORTEX TUBE HAVING AN OUTLET PASSAGE IN COMMUNICATION WITH AND IN AXIAL ALIGNMENT WITH SAID AIR PASSAGE AND BEING ADAPTED TO OPEN AND CLOSE COMMUNICATION BETWEEN SAID PASSAGES ON ROTATION THEREOF ON THE AXIS OF SAID OUTLET PASSAGE, SAID VALVE MEANS HAVING AN OUTER END, AT LEAST ONE RADIAL GROOVE IN SAID OUTER END; A HOUSING HAVING SIDE WALLS AND AN END WALL SPACED FROM SAID VORTEX TUBE, AN OPENING IN SAID END WALL IN ALIGNMENT WITH SAID OUTLET PASSAGE; A TUBULAR VALVE OPERATOR HAVING AN AIR PASSAGE IN COMMUNICATION WITH SAID OUTLET PASSAGE AND THE OUTSIDE OF SAID HOUSING THROUGH SAID OPENING, ONE END OF SAID VALVE OPERATOR ENGAGING SAID VALVE END AND HAVING AT LEAST ONE RADIAL RIB ADAPTED TO ENGAGE SAID AT LEAST ONE RADIAL GROOVE; MEANS TO URGE SAID VALVE OPERATOR AGAINST SAID VALVE AND MEANS OUTSIDE SAID HOUSING TO ROTATE SAID VALVE OPERATOR.
Claim 2
Dependent Claim
164 words
AN AIR COOLER COMPRISING: A VORTEX TUBE HAVING AN AIR PASSAGE; A TUBULAR VALVE WITHIN SAID VORTEX TUBE HAVING AN OUTLET PASSAGE IN COMMUNICATION WITH AND IN AXIAL ALIGNMENT WITH SAID AIR PASSAGE AND BEING ADAPTED TO OPEN AND CLOSE COMMUNICATION BETWEEN SAID PASSAGES ON ROTATION THEREOF ON THE AXIS OF SAID OUTLET PASSAGE, SAID VALVE MEANS HAVING AN OUTER END, AT LEAST ONE RADIAL GROOVE IN SAID OUTER END; A HOUSING HAVING SIDE WALLS AND AN END WALL SPACED FROM SAID VORTEX TUBE, AN OPENING IN SAID END WALL IN ALIGNMENT WITH SAID OUTLET PASSAGE; A TUBULAR VALVE OPERATOR HAVING AN AIR PASSAGE IN COMMUNICATION WITH SAID OUTLET PASSAGE AND THE OUTSIDE OF SAID HOUSING THROUGH SAID OPENING, ONE END OF SAID VALVE OPERATOR ENGAGING SAID VALVE END AND HAVING AT LEAST ONE RADIAL RIB ADAPTED TO ENGAGE SAID AT LEAST ONE RADIAL GROOVE; MEANS TO URGE SAID VALVE OPERATOR AGAINST SAID VALVE AND MEANS OUTSIDE SAID HOUSING TO ROTATE SAID VALVE OPERATOR.
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |