US3247860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid device
Assignee: Unisys Corp
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Filing: 1963-04-22
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Granted: 1966-04-26
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Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Saul N Zilberfarb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:40
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A FLUID MULTI-STABLE DEVICE COMPRISING A FIRST, A SECOND AND A THIRD LAMINA, SAID SECOND LAMINA BEING FLUIDTIGHTLY SEALED BETWEEN SAID FIRST AND THIRD LAMINA, SAID SECOND LAMINA HAVING A CUT-OUT CONFIGURATION HAVING A LONGITUDINAL AXIS, SAID CUT-OUT CONFIGURATION COMPRISING A POWER STREAM INLET CHAMBER AND A MAIN CHAMBER, SAID POWER STREAM INLET CHAMBER COMMUNICATING WITH SAID MAIN CHAMBER THROUGH A FIRST CONSTRICTED PASSAGE, A SOURCE OF FLUID UNDER REGULATED PRESSURE CONNECTED TO SAID POWER STREAM INLET CHAMBER, A CONTROL STREAM INLET CHAMBER LOCATED WITHIN SAID MAIN CHAMBER AND SPACED FROM THE WALLS OF SAID MAIN CHAMBER TO PERMIT FLUID FLOW ALL AROUND SAID CONTROL STREAM INLET, SAID CNTROL STREAM INLET CHAMBER COMMUNICATING WITH SAID MAIN CHAMBER THROUGH A SECOND CONSTRICTED PASSAGE, SAID FIRST AND SECOND CONSTRICTED PASSAGES BEING DISPOSED DIRECTLY OPPOSITE AND SUBSTANTIALLY COLINEARLY DIRECTED TOWARD EACH OTHER, AND A SOURCE OF CONTROL FLUID UNDER PRESSURE CONNECTED TO SAID CONTROL STREAM INLET CHAMBER.
Claim 2
Dependent Claim
154 words
A FLUID MULTI-STABLE DEVICE COMPRISING A FIRST, A SECOND AND A THIRD LAMINA, SAID SECOND LAMINA BEING FLUIDTIGHTLY SEALED BETWEEN SAID FIRST AND THIRD LAMINA, SAID SECOND LAMINA HAVING A CUT-OUT CONFIGURATION HAVING A LONGITUDINAL AXIS, SAID CUT-OUT CONFIGURATION COMPRISING A POWER STREAM INLET CHAMBER AND A MAIN CHAMBER, SAID POWER STREAM INLET CHAMBER COMMUNICATING WITH SAID MAIN CHAMBER THROUGH A FIRST CONSTRICTED PASSAGE, A SOURCE OF FLUID UNDER REGULATED PRESSURE CONNECTED TO SAID POWER STREAM INLET CHAMBER, A CONTROL STREAM INLET CHAMBER LOCATED WITHIN SAID MAIN CHAMBER AND SPACED FROM THE WALLS OF SAID MAIN CHAMBER TO PERMIT FLUID FLOW ALL AROUND SAID CONTROL STREAM INLET, SAID CNTROL STREAM INLET CHAMBER COMMUNICATING WITH SAID MAIN CHAMBER THROUGH A SECOND CONSTRICTED PASSAGE, SAID FIRST AND SECOND CONSTRICTED PASSAGES BEING DISPOSED DIRECTLY OPPOSITE AND SUBSTANTIALLY COLINEARLY DIRECTED TOWARD EACH OTHER, AND A SOURCE OF CONTROL FLUID UNDER PRESSURE CONNECTED TO SAID CONTROL STREAM INLET 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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |