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US3587609A Expired / Lapsed US ⏱️ 0.0 years remaining

Self pressurizing interaction region

Assignee: Bowles Fluidics Corp
•
Filing: 1969-02-18
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Granted: 1971-06-28
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Expires: 1989-02-18
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Abstract

Abstract A FLUIDIC AMPLIFIER CIRCUIT RESPONDS TO A VARIABLE PRESSURE INPUT SIGNAL AT A RELATIVELY LOW AVERAGE PRESSURE LEVEL TO PROVIDE AN AMPLIFIED VERSION OF THE PRESSURE INPUT SIGNAL AT A SUBSTANTIALLY HIGHER AVERAGE PRESSURE LEVEL. THE CIRCUIT COMPRISES A PLURALITY OF CASCADED FLUIDIC AMPLIFIER STAGES, THE INTERACTION REGIONS OF SUCCESSIVE STAGES BEING MAINTAINED AT RESPECTIVE SUCCESSIVELY INCREASING PRESSURES BY RESTRICTING VENT FLOW FROM EACH STAGE AS REQUIRED. THE INTERACTION REGION PRESSURE IN ANY STAGE MUST NOT BE SO GREAT RELATIVE TO THE AVERAGE PRESSURE LEVEL OF THE INPUT SIGNAL FOR THAT STAGE AS TO PREVENT THE INPUT SIGNAL FROM FLOWING INTO THAT STATE, NOR SO SMALL RELATIVE TO THE POWER STREAM PRESSURE AS TO CAUSE EXCESSIVE DIFFUSION OF THE POWER STREAM UPON ENTERING THE INTERACTION REGION.

Inventors

  • 👤 Carmine V De Camillo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 20:46
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/14; F15C1/146; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125; Y10T137/2142; Y10T137/2147

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-06-27 1974-12-27 1975-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-06-27 1978-12-27 1979-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-06-27 1982-12-27 1983-06-28 $7700.00 Window Closed / Lapsed

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