US3249022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-responsive device
Assignee: Individual
•
Filing: 1964-04-22
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Granted: 1966-05-03
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Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Jr John G Bolger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:26
CPC Classifications
F; F15; F15B; F15B5/00; G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A FLUID PRESSURE SENSING DEVICE COMPRISING A FLEXIBLE DIAPHRAGM HAVING OPPOSITE SIDES AND MOVABLE IN RESPONSE TO A PRESSURE DIFFERENTIAL ACROSS SAID DIAPHRAGM, MEANS FOR SUBJECTING OPPOSITE SIDES OF SAID DIAPHRAGM TO PRESSURES OF DIFFERENT VALUE, MOUNTING MEANS FOR SAID DIAPHRAGM HAVING AN OPENING THEREIN WITH OPPOSITE EDGE PORTIONS SPACED FROM EACH OTHER A GREATER DISTANCE THAN THE THICKNESS OF SAID DIAPHRAGM SO AS TO LEAVE SAID DIAPHRAGM UNCONFINED AT SAID OPENING, SAID DIAPHRAGM EXTENDING OUTWARDLY THROUGH THE OPENING IN THE MOUNTING MEANS AND ENGAGEABLE WITH ONE EDGE PORTION THEREOF, THE SURFACE OF AT LEAST ONE OF SAID OPPOSITE EDGE PORTIONS BEING SMOOTHLY ROUNDED WHERE IT ENGAGES SAID DIAPHRAGM, AND SEALING MEANS FOR PREVENTING THE EGRESS OF FLUID PAST SAID OPENING.
Claim 2
Dependent Claim
121 words
A FLUID PRESSURE SENSING DEVICE COMPRISING A FLEXIBLE DIAPHRAGM HAVING OPPOSITE SIDES AND MOVABLE IN RESPONSE TO A PRESSURE DIFFERENTIAL ACROSS SAID DIAPHRAGM, MEANS FOR SUBJECTING OPPOSITE SIDES OF SAID DIAPHRAGM TO PRESSURES OF DIFFERENT VALUE, MOUNTING MEANS FOR SAID DIAPHRAGM HAVING AN OPENING THEREIN WITH OPPOSITE EDGE PORTIONS SPACED FROM EACH OTHER A GREATER DISTANCE THAN THE THICKNESS OF SAID DIAPHRAGM SO AS TO LEAVE SAID DIAPHRAGM UNCONFINED AT SAID OPENING, SAID DIAPHRAGM EXTENDING OUTWARDLY THROUGH THE OPENING IN THE MOUNTING MEANS AND ENGAGEABLE WITH ONE EDGE PORTION THEREOF, THE SURFACE OF AT LEAST ONE OF SAID OPPOSITE EDGE PORTIONS BEING SMOOTHLY ROUNDED WHERE IT ENGAGES SAID DIAPHRAGM, AND SEALING MEANS FOR PREVENTING THE EGRESS OF FLUID PAST SAID OPENING.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |