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US3405727A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluid control valve with feedback

Assignee: Pneumo Dynamics Corp
•
Filing: 1964-06-29
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Granted: 1968-10-15
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Expires: 1984-06-29
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Abstract

No abstract record available.

Inventors

  • 👤 Frank E Hill

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 20:27
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B13/0436; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322; Y10T137/2409; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/86606; Y10T137/86614

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 265 words
A FLUID CONTROL VALVE COMPRISING A VALVE HOUSING, A VALVE SPOOL MOUNTED IN SAID VALVE HOUSING FOR REGULATING FLUID FOR TO AN EXTERNAL MECHANISM, THE OPPOSITE ENDS OF SAID VALVE SPOOL DEFINING WITH SAID VALVE HOUSING A PAIR OF CHAMBERS ADAPTED TO RECEIVER FLUID UNDER PRESSURE FOR CONTROLLING THE POSITION OF SAID VALVE SPOOL, A FLUID DIVERTER MEMBER MOVABLY MOUNTED ADJACENT ONE END IN SAID HOUSING, CONTROL MEANS ASSOCIATED WITH SAID ONE END OF SAID DIVERTER FOR MOVING SAID DIVERTER RESPONSIVE TO A CONTROL SIGNAL, SAID DIVERTER HAVING AN INTEGRAL, OPPOSITE END PORTION OPERATIVEY CONNECTED TO SAID VALVE SPOOL FOE MOVEMENT THEREWITH, SAID DIVERTER BEING FORMED WITH AN OPENING FOR RECEIVING FLUID AND DIRECTION THE SAME IN A DIRECTION GENERALLY NORMAL TO THE PLANE OF MOTION OF SAID DIVERTER, A SUPPLY PASSAGE FORMED IN SAID HOUSING FOR SUPPLYING FLUID UNDER PRESSURE TO SAID OPENING IN SAID DIVERTER, A PAIR OF RECEIVING PASSAGES FORMED IN SAID HOUSING GENERALLY OPPOSITE FROM SAIID DIVERTER OPENING, EACH OF SAID PASSAGES BEING EQUIDISTANTLY SPACED FROM SAID OPENING IN SAID DIVERTER DURING THE NULL POSITION OF THE LATTER, EACH OF SAID RECEIVING PASSAGES COMMUNICATING WITH A RESPECTIVE CHAMBER FOR DELIVERING FLUID UNDER PRESSURE THERETO, SAID CONTROL MEANS VARYING THE POSITION OF SAID DIVERTER FOR SUPPLYING VARIABLE AMOUNTS OF FLUID UNDER PRESSURE TO SAID RECEIVING PASSAGES AND ASSOCIATED CHAMBER FOR CONTROLLING THE POSITION OF SAID VALVE SPOOL, MOVEMENT OF SAID VALVE SPOOL PRODUCING MOVEMENT OF THE LOWER END OF SAID DIVERTER THEREBY EFFECTING A REPOSITIONING OF SAID DIVERTER RELATIVE TO SAID RECEIVING PASSAGES FOR MAINTAINING THE VALVE SPOOL IN ITS ADJUSTED POSITION.
Claim 2
Dependent Claim 265 words
A FLUID CONTROL VALVE COMPRISING A VALVE HOUSING, A VALVE SPOOL MOUNTED IN SAID VALVE HOUSING FOR REGULATING FLUID FOR TO AN EXTERNAL MECHANISM, THE OPPOSITE ENDS OF SAID VALVE SPOOL DEFINING WITH SAID VALVE HOUSING A PAIR OF CHAMBERS ADAPTED TO RECEIVER FLUID UNDER PRESSURE FOR CONTROLLING THE POSITION OF SAID VALVE SPOOL, A FLUID DIVERTER MEMBER MOVABLY MOUNTED ADJACENT ONE END IN SAID HOUSING, CONTROL MEANS ASSOCIATED WITH SAID ONE END OF SAID DIVERTER FOR MOVING SAID DIVERTER RESPONSIVE TO A CONTROL SIGNAL, SAID DIVERTER HAVING AN INTEGRAL, OPPOSITE END PORTION OPERATIVEY CONNECTED TO SAID VALVE SPOOL FOE MOVEMENT THEREWITH, SAID DIVERTER BEING FORMED WITH AN OPENING FOR RECEIVING FLUID AND DIRECTION THE SAME IN A DIRECTION GENERALLY NORMAL TO THE PLANE OF MOTION OF SAID DIVERTER, A SUPPLY PASSAGE FORMED IN SAID HOUSING FOR SUPPLYING FLUID UNDER PRESSURE TO SAID OPENING IN SAID DIVERTER, A PAIR OF RECEIVING PASSAGES FORMED IN SAID HOUSING GENERALLY OPPOSITE FROM SAIID DIVERTER OPENING, EACH OF SAID PASSAGES BEING EQUIDISTANTLY SPACED FROM SAID OPENING IN SAID DIVERTER DURING THE NULL POSITION OF THE LATTER, EACH OF SAID RECEIVING PASSAGES COMMUNICATING WITH A RESPECTIVE CHAMBER FOR DELIVERING FLUID UNDER PRESSURE THERETO, SAID CONTROL MEANS VARYING THE POSITION OF SAID DIVERTER FOR SUPPLYING VARIABLE AMOUNTS OF FLUID UNDER PRESSURE TO SAID RECEIVING PASSAGES AND ASSOCIATED CHAMBER FOR CONTROLLING THE POSITION OF SAID VALVE SPOOL, MOVEMENT OF SAID VALVE SPOOL PRODUCING MOVEMENT OF THE LOWER END OF SAID DIVERTER THEREBY EFFECTING A REPOSITIONING OF SAID DIVERTER RELATIVE TO SAID RECEIVING PASSAGES FOR MAINTAINING THE VALVE SPOOL IN ITS ADJUSTED POSITION.

References Cited (Backward Citations)

US2947286A Cited
US3223103A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1971-10-15 1972-04-15 1972-10-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1975-10-15 1976-04-15 1976-10-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1979-10-15 1980-04-15 1980-10-15 $7700.00 Window Closed / Lapsed

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