Patent US3270760A successfully refreshed from Google Patents.
US3270760A
Expired / Lapsed
US
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Pneumatic multiplier
Assignee: Unisys Corp
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Filing: 1963-12-19
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Granted: 1966-09-06
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Robert G Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/16; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A TAPERED CHAMBER, MEANS FOR INTRODUCING FLUID INTO SAID CHAMBER IN AMOUNTS GRADUALLY INCREASING FROM ONE END OF SAID TAPERED CHAMBER TO THE OTHER, CONTROL MEANS COMMUNICATING WITH SAID CHAMBER FOR INITIATING A VORTEX MOVEMENT OF SAID FLUID AT SAID ONE END OF SAID CHAMBER WHICH IN TURN EFFECTS AN INCREASING VORTEX MOVEMENT OF SAID FLUID THROUGHOUT SAID CHAMBER.
Claim 2
Dependent Claim
59 words
A TAPERED CHAMBER, MEANS FOR INTRODUCING FLUID INTO SAID CHAMBER IN AMOUNTS GRADUALLY INCREASING FROM ONE END OF SAID TAPERED CHAMBER TO THE OTHER, CONTROL MEANS COMMUNICATING WITH SAID CHAMBER FOR INITIATING A VORTEX MOVEMENT OF SAID FLUID AT SAID ONE END OF SAID CHAMBER WHICH IN TURN EFFECTS AN INCREASING VORTEX MOVEMENT OF SAID FLUID THROUGHOUT SAID CHAMBER.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |