US3113459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure measuring device
Assignee: North American Aviation Corp
•
Filing: 1959-04-29
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Granted: 1963-12-10
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Expires: 1979-04-29
Abstract
No abstract record available.
Inventors
- 👤 John M Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:39
CPC Classifications
G; G01; G01L; G01L11/00; G01L11/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
FLUID PRESSURE MEASURING APPARATUS COMPRISING A SUPPORT, A MASS LOADED FLEXIBLE DIAPHRAGM MOUNTED TO SAID SUPPORT FOR ROTATION ABOUT A SPIN AXIS, MEANS FOR APPLYING THE PRESSURE TO BE MEASURED TO SAID DIAPHRAGM IN A SENSE TO EFFECT DEFORMATION THEREOF, MEANS FOR ROTATING SAID MASS LOADED DIAPHRAGM ABOUT SAID AXIS TO EFFECT CENTRIPETAL ACCELERATION THEREOF, AND MEANS FOR CONTROLLING SAID ACCELERATION IN ACCORDANCE WITH THE DEFORMATION OF SAID ACCELERATION IN ACCORDANCE WITH THE DEFORMATION OF SAID DIAPHRAGM, SAID DIAPHRAGM COMPRISING A PAIR OF RIGIDLY INTERCONNECTED DIAPHRAGM ELEMENTS OF DIFFERENT EFFECTIVE AREAS MOUNTED ON DIAMETRICALLY OPPOSITE SIDES OF SAID AXIS, THE DIAPHRAGM ELEMENT OF LARGER AREA HAVING A MASS LOADING GREATER THAN THAT OF THE OTHER OF SAID ELEMENTS.
Claim 2
Dependent Claim
118 words
FLUID PRESSURE MEASURING APPARATUS COMPRISING A SUPPORT, A MASS LOADED FLEXIBLE DIAPHRAGM MOUNTED TO SAID SUPPORT FOR ROTATION ABOUT A SPIN AXIS, MEANS FOR APPLYING THE PRESSURE TO BE MEASURED TO SAID DIAPHRAGM IN A SENSE TO EFFECT DEFORMATION THEREOF, MEANS FOR ROTATING SAID MASS LOADED DIAPHRAGM ABOUT SAID AXIS TO EFFECT CENTRIPETAL ACCELERATION THEREOF, AND MEANS FOR CONTROLLING SAID ACCELERATION IN ACCORDANCE WITH THE DEFORMATION OF SAID ACCELERATION IN ACCORDANCE WITH THE DEFORMATION OF SAID DIAPHRAGM, SAID DIAPHRAGM COMPRISING A PAIR OF RIGIDLY INTERCONNECTED DIAPHRAGM ELEMENTS OF DIFFERENT EFFECTIVE AREAS MOUNTED ON DIAMETRICALLY OPPOSITE SIDES OF SAID AXIS, THE DIAPHRAGM ELEMENT OF LARGER AREA HAVING A MASS LOADING GREATER THAN THAT OF THE OTHER OF SAID ELEMENTS.
References Cited (Backward Citations)
US839982A
Cited
US2319940A
Cited
US2369650A
Cited
US2905000A
Cited
US2820939A
Cited
US2906120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |