US3319656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable device
Assignee: Unisys Corp
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Filing: 1963-11-08
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Granted: 1967-05-16
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Expires: 1983-11-08
Abstract
No abstract record available.
Inventors
- 👤 Trevor D Reader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:17
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; F15C1/04; F15B; F15B13/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86847
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
A FLUID SWITCH COMPRISING: MEANS DEFINING A FLUID CHAMBER; MEANS FOR INJECTING INTO SAID CHAMBER IN OPPOSING DIRECTIONS FIRST AND SECOND HIGH VELOCITY FLUID STREAMS; A MOVABLE ELEMENT MOUNTED IN SAID CHAMBER FOR ROTATING MOVEMENT IN THE PATHS OF SAID FLUID STREAMS ABOUT AN AXIS EXTENDING THROUGH THE AXES OF SAID STREAMS; MEANS FOR SELECTIVELY ROTATING SAID MOVABLE ELEMENT TO A FIRST OR A SECOND POSITION; AND A PLURALITY OF OUTPUT CHANNELS CONNECTED TO SAID CHAMBER FOR SELECTIVELY RECEIVING SAID FLUID STREAMS AFTER THEY ARE DIVERTED BY SAID MOVABLE ELEMENT, SAID MOVABLE ELEMENT HAVING TWO CURVED SURFACES FOR DIVERTING SAID FLUID STREAMS, SAID SURFACES BEING SHAPED SUCH THAT SAID FLUID STREAMS EXERT FORCES THEREON TENDING TO HOLD SAID MOVABLE ELEMENT IN SAID FIRST OR SAID SECOND POSITION AFTER IT HAS BEEN ROTATED THERETO.
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |