US3097664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow regulator
Assignee: Marquardt Corp
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Filing: 1960-12-15
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Granted: 1963-07-16
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Expires: 1980-12-15
Abstract
No abstract record available.
Inventors
- 👤 William H Henley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:39
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/03; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7759; Y10T137/776; Y10T137/7762; Y10T137/7764
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A FLUID FLOW REGULATOR COMPRISING A FLUID FLOW PASSAGE, A MOVABLE VALVE FOR CONTROLLING THE AMOUNT OF FLUID FLOW THROUGH SAID PASSAGE, MEANS FOR SENSING THE INSTANTANEOUS FLUID FLOW THROUGH SAID PASSAGE, AN INPUT PRESSURE FOR CONTROLLING FLUID FLOW, PRESSURE DIVIDER MEANS HAVING AN UPSTREAM ORIFICE CONNECTED WITH SAID INPUT PRESSURE AND HAVING A DOWNSTREAM ORIFICE AND A PRESSURE CHAMBER THEREBETWEEN, MEANS RESPONSIVE TO SAID SENSING MEANS FOR VARYING THE AREA OF ONE OF SAID ORIFICES TO PRODUCE A PRESSURE IN SAID CHAMBER PROPORTIONAL TO SAID INPUT PRESSURE, AND MEANS RESPONSIVE TO SAID PROPORTIONAL PRESSURE FOR POSITIONING SAID VALVE TO MAINTAIN SAID FLUID FLOW PROPORTIONAL TO SAID INPUT PRESURE, SAID ORIFICE VARYING MEANS COMPRISING, A NEEDLE VALVE CONNECTED WITH SAID SENSING MEANS, SAID ONE VARIABLE ORIFICE AND SAID NEEDLE VALVE BEING CONTOURED TO VARY TE AREA OF SAID ONE ORIFICE IN PROPORTION TO THE SQUARE ROOT OF THE FLUID FLOW.
Claim 2
Dependent Claim
150 words
A FLUID FLOW REGULATOR COMPRISING A FLUID FLOW PASSAGE, A MOVABLE VALVE FOR CONTROLLING THE AMOUNT OF FLUID FLOW THROUGH SAID PASSAGE, MEANS FOR SENSING THE INSTANTANEOUS FLUID FLOW THROUGH SAID PASSAGE, AN INPUT PRESSURE FOR CONTROLLING FLUID FLOW, PRESSURE DIVIDER MEANS HAVING AN UPSTREAM ORIFICE CONNECTED WITH SAID INPUT PRESSURE AND HAVING A DOWNSTREAM ORIFICE AND A PRESSURE CHAMBER THEREBETWEEN, MEANS RESPONSIVE TO SAID SENSING MEANS FOR VARYING THE AREA OF ONE OF SAID ORIFICES TO PRODUCE A PRESSURE IN SAID CHAMBER PROPORTIONAL TO SAID INPUT PRESSURE, AND MEANS RESPONSIVE TO SAID PROPORTIONAL PRESSURE FOR POSITIONING SAID VALVE TO MAINTAIN SAID FLUID FLOW PROPORTIONAL TO SAID INPUT PRESURE, SAID ORIFICE VARYING MEANS COMPRISING, A NEEDLE VALVE CONNECTED WITH SAID SENSING MEANS, SAID ONE VARIABLE ORIFICE AND SAID NEEDLE VALVE BEING CONTOURED TO VARY TE AREA OF SAID ONE ORIFICE IN PROPORTION TO THE SQUARE ROOT OF THE FLUID FLOW.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |