Patent US3255633A successfully refreshed from Google Patents.
US3255633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsating pressure sensing device
Assignee: Bendix Corp
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Filing: 1963-06-27
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Granted: 1966-06-14
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 William E Worley
- 👤 Jr Francis A Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:39
CPC Classifications
F; F15; F15B; F15B5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A DEVICE FOR DETECTING PULSATING PRESSURES COMPRISING A HOUSING HAVING A CHAMBER THEREIN, A MOVABLE DIAPHRAGM LOCATED IN SAID CHAMBER AND DIVIDING SAID CHAMBER INTO FIRST AND SECOND SUBCHAMBERS, A CONTROL ROD OPERATIVELY CONNECTED TO SAID DIAPHRAGM AND MOVABLE THEREWITH, FIRST PASSAGE MEANS FOR CONNECTING SAID FIRST SUBCHAMBER WITH A PNEUMATIC PRESSURE SOURCE, SECOND PASSAGE MEANS FOR CONNECTING THE SECOND SUBCHAMBER WITH THE SAME PNEUMATIC PRESSURE SOURCE, A FIRST SPRING LOADED CHECK VALVE LOCATED IN SAID FIRST PASSAGE MEANS, SAID FIRST CHECK VALVE BEING ARRANGED TO OPEN AND PERMIT INCREASED COMMUNICATION BETWEEN THE PRESSURE SOURCE AND SAID FIRST SUBCHAMBER DURING THE HIGH PRESSURE PORTION OF A PULSATING PRESSURE CYCLE, A SECOND SPRING LOADED CHECK VALVE LOCATED IN SAID SECOND PASSAGE MEANS, SAID SECOND CHECK VALVE BEING ARRANGED TO OPEN AND PERMIT INCREASED COMMUNICATION BETWEEN THE PRESSURE SOURCE AND SAID SECOND SUBCHAMBER DURING THE LOW PRESSURE SOURCE AND SAID SECOND ING PRESSURE CYCLE, AND RESTRICTED PASSAGES LOCATED IN EACH SURES IN THE FIRST AND SECOND SUBCHAMBERS DURING STEADY OF SAID CHECK VALVES FOR PERMITTING EQUALIZATION OF PRESSTATE PRESSURE APPLICATIONS WHEN PULSING PRESSURES ARE NOT EMANATING FROM THE PRESSURE SOURCE.
Claim 2
Independent Claim
188 words
A DEVICE FOR DETECTING PULSATING PRESSURES COMPRISING A HOUSING HAVING A CHAMBER THEREIN, A MOVABLE DIAPHRAGM LOCATED IN SAID CHAMBER AND DIVIDING SAID CHAMBER INTO FIRST AND SECOND SUBCHAMBERS, A CONTROL ROD OPERATIVELY CONNECTED TO SAID DIAPHRAGM AND MOVABLE THEREWITH, FIRST PASSAGE MEANS FOR CONNECTING SAID FIRST SUBCHAMBER WITH A PNEUMATIC PRESSURE SOURCE, SECOND PASSAGE MEANS FOR CONNECTING THE SECOND SUBCHAMBER WITH THE SAME PNEUMATIC PRESSURE SOURCE, A FIRST SPRING LOADED CHECK VALVE LOCATED IN SAID FIRST PASSAGE MEANS, SAID FIRST CHECK VALVE BEING ARRANGED TO OPEN AND PERMIT INCREASED COMMUNICATION BETWEEN THE PRESSURE SOURCE AND SAID FIRST SUBCHAMBER DURING THE HIGH PRESSURE PORTION OF A PULSATING PRESSURE CYCLE, A SECOND SPRING LOADED CHECK VALVE LOCATED IN SAID SECOND PASSAGE MEANS, SAID SECOND CHECK VALVE BEING ARRANGED TO OPEN AND PERMIT INCREASED COMMUNICATION BETWEEN THE PRESSURE SOURCE AND SAID SECOND SUBCHAMBER DURING THE LOW PRESSURE SOURCE AND SAID SECOND ING PRESSURE CYCLE, AND RESTRICTED PASSAGES LOCATED IN EACH SURES IN THE FIRST AND SECOND SUBCHAMBERS DURING STEADY OF SAID CHECK VALVES FOR PERMITTING EQUALIZATION OF PRESSTATE PRESSURE APPLICATIONS WHEN PULSING PRESSURES ARE NOT EMANATING FROM THE PRESSURE SOURCE.
References Cited (Backward Citations)
US1924091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |