US3433262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bilevel pressure regulating valve
Assignee: TDK Micronas GmbH
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Filing: 1965-11-18
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Granted: 1969-03-18
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Expires: 1985-11-18
Abstract
No abstract record available.
Inventors
- 👤 William Alton Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:48
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/06; F15B11/068; G; G05; G05D; G05D16/00; G05D16/04; G05D16/0402; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7797; Y10T137/7801; Y10T137/7822; Y10T137/7823; Y10T137/7825; Y10T137/8593; Y10T137/87917; Y10T137/88046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
INA FLUID CONTROL SYSTEM: A CONFINED FLUID PATH; CONTROL VALVE MEANS IN SAID PATH NORMALLY PRECLUDING THE PASSAGE OF FLUID THROUGH; VALVE ACTUATING MEANS FOR OPERATING SAID CONTROL VALVE MEANS TO PARTIALY OPEN AND FULLY OPEN POSITIONS RESPONSIVE TO RESPECTIVE FIRST AND SECOND PRESSURE ON THE INLET SIDE OF SAID CONTROL VALVE MEANS TO PROVIDE LOW CAPACITY AND HIGH CAPACITY FLUID FLOW THROUGH SAID PATH; AND PRESSURE REGULATING MEANS FOR SEQUENTIALLY ESTABLISHING SAID FLUID FIRST AND SECOND PRESSURES, SAID PRESSURE REGULATING MEANS INCLUDING A REGULATOR VALVE IN SAID PATH ON THE INLET SIDE OF SAID CONTROL VALVE MEANS AND HAVING A VALVE SEAT AND A MOVABLE VALVE ELEMENT WHICH COOPERATES WITH SAID SEAT, A DIAPHRAGM CONNECTED TO SAID MOVABLE VALVE ELEMENT HAVING ONE SIDE EXPOSED TO THE PRESSURE BETWEEN SAID REGULATING VALVE AND SAID CONTROL VALVE MEANS, SAID DIAPHRAGM AND SAID ELEMENT BEING ARRANGED SUCH THAT THE PRESSURE BETWEEN THE REGULATING VALVE AND THE CONTROL VALVE MEANS URGES SAID ELEMENT TO CLOSE SAID REGULATOR VALVE, MEANS DEFINING A CONTROL CHAMBER HAVING ONE WALL FORMED BY THE OTHER SIDE OF SAID DIAPHRAGM, MEANS DEFINING A RESTRICTED PASSAGEWAY CONNECTING SAID CHAMBER TO THE OUTLET SIDE OF SAID CONTROL VALVE
Claim 2
Dependent Claim
197 words
INA FLUID CONTROL SYSTEM: A CONFINED FLUID PATH; CONTROL VALVE MEANS IN SAID PATH NORMALLY PRECLUDING THE PASSAGE OF FLUID THROUGH; VALVE ACTUATING MEANS FOR OPERATING SAID CONTROL VALVE MEANS TO PARTIALY OPEN AND FULLY OPEN POSITIONS RESPONSIVE TO RESPECTIVE FIRST AND SECOND PRESSURE ON THE INLET SIDE OF SAID CONTROL VALVE MEANS TO PROVIDE LOW CAPACITY AND HIGH CAPACITY FLUID FLOW THROUGH SAID PATH; AND PRESSURE REGULATING MEANS FOR SEQUENTIALLY ESTABLISHING SAID FLUID FIRST AND SECOND PRESSURES, SAID PRESSURE REGULATING MEANS INCLUDING A REGULATOR VALVE IN SAID PATH ON THE INLET SIDE OF SAID CONTROL VALVE MEANS AND HAVING A VALVE SEAT AND A MOVABLE VALVE ELEMENT WHICH COOPERATES WITH SAID SEAT, A DIAPHRAGM CONNECTED TO SAID MOVABLE VALVE ELEMENT HAVING ONE SIDE EXPOSED TO THE PRESSURE BETWEEN SAID REGULATING VALVE AND SAID CONTROL VALVE MEANS, SAID DIAPHRAGM AND SAID ELEMENT BEING ARRANGED SUCH THAT THE PRESSURE BETWEEN THE REGULATING VALVE AND THE CONTROL VALVE MEANS URGES SAID ELEMENT TO CLOSE SAID REGULATOR VALVE, MEANS DEFINING A CONTROL CHAMBER HAVING ONE WALL FORMED BY THE OTHER SIDE OF SAID DIAPHRAGM, MEANS DEFINING A RESTRICTED PASSAGEWAY CONNECTING SAID CHAMBER TO THE OUTLET SIDE OF SAID CONTROL VALVE
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) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |