Patent US3263501A successfully refreshed from Google Patents.
US3263501A
Expired / Lapsed
US
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Pressure sensing and measuring device
Assignee: Individual
•
Filing: 1964-01-09
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Granted: 1966-08-02
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Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Romald E Bowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:46
CPC Classifications
G; G01; G01C; G01C5/00; G01C5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A SYSTEM FOR SENSING THE STATIC PRESSURE IN A FLUID MEDIUM COMPRISING: FLUID CONVEYING MEANS HAVING ENDS THROUGH WHICH FLUID PRESSURE SIGNALS TRAVEL; A FLUID RESISTANCE IN EACH END OF SAID CONVEYING MEANS FOR RESTRICTING THE FLOW OF FLUID THERETHROUGH, A FLUID CAPACITANCE COMMUNICATING WITH SAID CONVEYING MEANS FOR RECEIVING FLUID FROM, AND FOR DISCHARGING FLUID INTO SAID CONVEYING MEANS AS THE PRESSURE IN SAID CONVEYING MEANS RESPECTIVELY INCREASES AND DECREASES, FLUID SUPPLY MEANS CONNECTED TO SAID CONVEYING MEANS FOR DISCHARGING FLUID AT A PREDETERMINED PRESSURE INTO SAID CONVEYING MEANS, AND A FLUID RESISTANCE IN SAID SUPPLY MEANS FOR RESTRICTING FLOW FROM SAID SUPPLY MEANS TO SAID CONVEYING MEAN, THE COMBINATION OF FLUID RESISTANCES IN EACH END OF SAID CONVEYING MEANS AND SAID FLUID CAPACITANCE PROVIDING A TIME CONSTANT FOR THE CONVEYING MEANS SUCH THAT PRESSURE FLUCTUATIONS OF PREDETERMINED FREQUENCIES SENSED BY ONE END OF SAID CONVEYING MEANS ARE ATTENUATED IN AMPLITUDE BEFORE ISSUING FROM THE OTHER END OF SAID CONVEYING MEANS.
Claim 2
Independent Claim
162 words
A SYSTEM FOR SENSING THE STATIC PRESSURE IN A FLUID MEDIUM COMPRISING: FLUID CONVEYING MEANS HAVING ENDS THROUGH WHICH FLUID PRESSURE SIGNALS TRAVEL; A FLUID RESISTANCE IN EACH END OF SAID CONVEYING MEANS FOR RESTRICTING THE FLOW OF FLUID THERETHROUGH, A FLUID CAPACITANCE COMMUNICATING WITH SAID CONVEYING MEANS FOR RECEIVING FLUID FROM, AND FOR DISCHARGING FLUID INTO SAID CONVEYING MEANS AS THE PRESSURE IN SAID CONVEYING MEANS RESPECTIVELY INCREASES AND DECREASES, FLUID SUPPLY MEANS CONNECTED TO SAID CONVEYING MEANS FOR DISCHARGING FLUID AT A PREDETERMINED PRESSURE INTO SAID CONVEYING MEANS, AND A FLUID RESISTANCE IN SAID SUPPLY MEANS FOR RESTRICTING FLOW FROM SAID SUPPLY MEANS TO SAID CONVEYING MEAN, THE COMBINATION OF FLUID RESISTANCES IN EACH END OF SAID CONVEYING MEANS AND SAID FLUID CAPACITANCE PROVIDING A TIME CONSTANT FOR THE CONVEYING MEANS SUCH THAT PRESSURE FLUCTUATIONS OF PREDETERMINED FREQUENCIES SENSED BY ONE END OF SAID CONVEYING MEANS ARE ATTENUATED IN AMPLITUDE BEFORE ISSUING FROM THE OTHER END OF SAID CONVEYING MEANS.
References Cited (Backward Citations)
US3153934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |