US3195028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitance pressure gage
Assignee: Emerson Process Management Ltd
•
Filing: 1961-02-13
•
Granted: 1965-07-13
•
Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Frank D Werner
- 👤 Robert L Geronime
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:38
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0041; G01L9/0072; G01L13/00; G01L13/02; G01L13/025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A PRESSURE SENSITIVE CAPACITATIVE ELECTRICAL TRANSDUCER COMPRISING A PRESSURE RESPONSIVE DIAPHRAGM AND A CAPACITANCE ELEMENTS, SAID DIAPHRAM AND ELEMENT EACH BEING CIRCULAR, MEANS ATTACHED TO THE PERIPHERAL EDGES OF THE DIAPHRAGM AND TO THE PERIPHERAL EDGES OF THE CAPACITANCE ELEMENT MOUNTING THEM WITH ONE ELECTRICALLY INSULATED FROM THE OTHER AND SUBSTANTIALLY PARALLEL TO EACH OTHER AND SPACED APART, SAID DIAPHRAGM AND CAPACITANCE ELEMENT TOGETHER FORMING AN ELECTRICAL CAPACITOR, SAID DIAPHRAGM AND CAPACITANCE ELEMENT TOGETHER WITH THEIR RESPECTIVE MOUNTING MEANS HAVING SUBSTANTIALLY EQUAL RIGIDITY IN AXIAL DIRECTION, AND CLOSURES FORMING A CLOSED SPACED COVERING EACH FACE OF THE DIAPHRAGM, AND PRESSURE INLET MEANS INTO AT LEAST ONE OF SAID SPACES.
References Cited (Backward Citations)
US2271983A
Cited
US2401527A
Cited
US3000215A
Cited
US2753515A
Cited
US2808545A
Cited
US2958056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |