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US3226931A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluid diaphragm isolator

Assignee: Unisys Corp
•
Filing: 1964-01-06
•
Granted: 1966-01-04
•
Expires: 1984-01-06
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Abstract

No abstract record available.

Inventors

  • 👤 Bauer Peter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 19:08
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 150 words
A FLUID DEVICE FOR TRANSMITTING CHANGES IN FLUID PRESSURE WHILE AT THE SAME TIME PREVENTING STEADY STATE FLUID FLOW, WHICH COMPRISES: (A) A FLUID CHAMBER HAVING A FIRST OPENING AT ONE END THEREOF AND A SECOND OPENING AT THE OPPOSITE END THEREOF, WITH AT LEAST ONE PAIR OF OPPOSED CHAMBER SIDE WALLS BEING GRADUALLY AND SMOOTHLY FLARED OUTWARDLY AT AN EVER INCREASING ANGLE FROM THE EDGE OF EACH SAID OPENING TOWARDS A LOCATION BETWEEN SAID OPENINGS SUCH THAT THE VELOCITY PRESSURE HEAD OF MOVING FLUID ENTERING THROUGH EITHER OPENING IS SUBSTANTIALLY CONVERTED TO STATIC PRESSURE HEAD AT SAID LOCATION; AND (B) A DIAPHRAGM MEMBER PLACED ACROSS SAID CHAMBER AT SAID LOCATION TO SEAL OFF SAID FIRST OPENING FROM FLUID COMMUNICATION WITH SAID SECOND OPENING AND THEREBY PROVIDE FIRST AND SECOND ISOLATED CHAMBER PORTIONS, WITH SAID DIAPHRAGM MEMBER BEING CAPABLE OF FLEXURE TOWARD OPENINGS IN RESPONSE TO A PRESSURE DIFFERENTIAL THEREACROSS.
Claim 2
Dependent Claim 150 words
A FLUID DEVICE FOR TRANSMITTING CHANGES IN FLUID PRESSURE WHILE AT THE SAME TIME PREVENTING STEADY STATE FLUID FLOW, WHICH COMPRISES: (A) A FLUID CHAMBER HAVING A FIRST OPENING AT ONE END THEREOF AND A SECOND OPENING AT THE OPPOSITE END THEREOF, WITH AT LEAST ONE PAIR OF OPPOSED CHAMBER SIDE WALLS BEING GRADUALLY AND SMOOTHLY FLARED OUTWARDLY AT AN EVER INCREASING ANGLE FROM THE EDGE OF EACH SAID OPENING TOWARDS A LOCATION BETWEEN SAID OPENINGS SUCH THAT THE VELOCITY PRESSURE HEAD OF MOVING FLUID ENTERING THROUGH EITHER OPENING IS SUBSTANTIALLY CONVERTED TO STATIC PRESSURE HEAD AT SAID LOCATION; AND (B) A DIAPHRAGM MEMBER PLACED ACROSS SAID CHAMBER AT SAID LOCATION TO SEAL OFF SAID FIRST OPENING FROM FLUID COMMUNICATION WITH SAID SECOND OPENING AND THEREBY PROVIDE FIRST AND SECOND ISOLATED CHAMBER PORTIONS, WITH SAID DIAPHRAGM MEMBER BEING CAPABLE OF FLEXURE TOWARD OPENINGS IN RESPONSE TO A PRESSURE DIFFERENTIAL THEREACROSS.

References Cited (Backward Citations)

US1643574A Cited
US1804599A Cited
US1986764A Cited
US2317594A Cited
US2667184A Cited
US2907339A Cited
US3075468A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-01-03 1969-07-05 1970-01-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-01-03 1973-07-05 1974-01-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-01-03 1977-07-05 1978-01-04 $7700.00 Window Closed / Lapsed

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