Patent US3286526A successfully refreshed from Google Patents.
US3286526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure transducer
Assignee: W H MINER Inc
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Filing: 1964-04-27
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Granted: 1966-11-22
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Harry W Mulcahy
- 👤 Richard G Tillou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:12
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0001; G01L9/0002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A TRANSDUCER ASSEMBLY FOR USE IN TRANSLATING FLUID PRESSURES WHICH ARE ADAPTED TO VARY AT ANY ONE OF A NUMBER OF DIFFERENT RATES INTO ELECTRICAL SIGNALS CORRESPONDING IN VALUE OT THE FLUID PRESSURE WITH VARIATIONS IN TEMPERATURE BEING AUTOMATICALLY COMPENSATED, SAID ASSEMBLY COMPRISING A SOLID CYLINDRICAL ELEMENT HAVING ONE CYLINDRICAL AXIAL BORE FORMED IN ONE END AND ADAPTED TO BE CONNECTED TO A SOURCE OF FLUID PRESSURE WITH THE DIAMETER OF SAID BORE BEING LESS THAN THE DIAMETER OF ANY FLUID PASSAGEWAY INTERCONNECTED BETWEEN SAID BORE AND SAID SOURCE AND HAVING A SECOND AXIAL BORE IDENTICAL IN DIAMETER TO SAID ONE BORE FORMED IN THE OPPOSITE END OF SAID CYLINDRICAL ELEMENT AND ADAPTED TO BE EXPOSED TO THE ATMOSPHERE, AND A SERIES OF FOUR STRAIN GAUGES BONDED TO THE OUTER SURFACE OF SAID ELEMENT IN A MANNER SUCH THAT SAME RESPOND TO HOOP STRAINS IN SAID ELEMENT WITH TWO OF SAID GAUGES BEING ADJACENT SAID ONE BORE AND WITH THE OTHER TWO GAUGES BEING ADJACENT SAID SECOND BORE, SAID GAUGES BEING CONNECTED IN SEPARATE LEGS OF A WHEATSTONE BRIDGE.
Claim 2
Dependent Claim
179 words
A TRANSDUCER ASSEMBLY FOR USE IN TRANSLATING FLUID PRESSURES WHICH ARE ADAPTED TO VARY AT ANY ONE OF A NUMBER OF DIFFERENT RATES INTO ELECTRICAL SIGNALS CORRESPONDING IN VALUE OT THE FLUID PRESSURE WITH VARIATIONS IN TEMPERATURE BEING AUTOMATICALLY COMPENSATED, SAID ASSEMBLY COMPRISING A SOLID CYLINDRICAL ELEMENT HAVING ONE CYLINDRICAL AXIAL BORE FORMED IN ONE END AND ADAPTED TO BE CONNECTED TO A SOURCE OF FLUID PRESSURE WITH THE DIAMETER OF SAID BORE BEING LESS THAN THE DIAMETER OF ANY FLUID PASSAGEWAY INTERCONNECTED BETWEEN SAID BORE AND SAID SOURCE AND HAVING A SECOND AXIAL BORE IDENTICAL IN DIAMETER TO SAID ONE BORE FORMED IN THE OPPOSITE END OF SAID CYLINDRICAL ELEMENT AND ADAPTED TO BE EXPOSED TO THE ATMOSPHERE, AND A SERIES OF FOUR STRAIN GAUGES BONDED TO THE OUTER SURFACE OF SAID ELEMENT IN A MANNER SUCH THAT SAME RESPOND TO HOOP STRAINS IN SAID ELEMENT WITH TWO OF SAID GAUGES BEING ADJACENT SAID ONE BORE AND WITH THE OTHER TWO GAUGES BEING ADJACENT SAID SECOND BORE, SAID GAUGES BEING CONNECTED IN SEPARATE LEGS OF A WHEATSTONE BRIDGE.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |