US3124959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary differential pressure sensing
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:53
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/08; G01L7/082; G01L19/00; G01L19/08; G01L19/12; G01L7/084; H; H01; H01H; H01H35/00; H01H35/24; H01H35/34; H01H35/343
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PRIMARY DIFFERENTIAL PRESSURE SENSING ELEMENT COMPRISING A CHAMBER, AN ELASTIC PRESSURE-RESPONSIVE DIAPHRAGM ACROSS ONE SIDE THEREOF, AT LEAST ONE SIDE OF THE DIAPHRAGM BEING SUBJECT TO VARIABLE FLUID PRESSURE, THE DIAPHRAGM BEING SUPPORTED FOR DEFLECTION OF A CENTRAL PORTION THEREOF RESPONSIVE TO DIFFERENCES IN PRESSURE APPLIED TO OPPOSITE SIDES THEREOF, REINFORCING CUP MEANS HAVING A FLAT PORTION ATTACHED TO THE DIAPHRAGM AND HAVING A CYLINDRICAL PORTION ATTACHED TO A WALL OF THE CHAMBER, AND SENSING MEANS EXTENDING LATERALLY FROM A POINT ADJACENT AN EDGE OF THE DIAPHRAGM, RESPONDING TO PRESSURE-RESPONSIVE DEFLECTION OF THE CENTRAL PORTION OF THE DIAPHRAGM.
Claim 2
Dependent Claim
99 words
A PRIMARY DIFFERENTIAL PRESSURE SENSING ELEMENT COMPRISING A CHAMBER, AN ELASTIC PRESSURE-RESPONSIVE DIAPHRAGM ACROSS ONE SIDE THEREOF, AT LEAST ONE SIDE OF THE DIAPHRAGM BEING SUBJECT TO VARIABLE FLUID PRESSURE, THE DIAPHRAGM BEING SUPPORTED FOR DEFLECTION OF A CENTRAL PORTION THEREOF RESPONSIVE TO DIFFERENCES IN PRESSURE APPLIED TO OPPOSITE SIDES THEREOF, REINFORCING CUP MEANS HAVING A FLAT PORTION ATTACHED TO THE DIAPHRAGM AND HAVING A CYLINDRICAL PORTION ATTACHED TO A WALL OF THE CHAMBER, AND SENSING MEANS EXTENDING LATERALLY FROM A POINT ADJACENT AN EDGE OF THE DIAPHRAGM, RESPONDING TO PRESSURE-RESPONSIVE DEFLECTION OF THE CENTRAL PORTION OF THE DIAPHRAGM.
References Cited (Backward Citations)
US1340086A
Cited
US1489349A
Cited
US1885457A
Cited
US2034646A
Cited
US2078065A
Cited
US2312787A
Cited
US2517534A
Cited
US2971470A
Cited
US2902048A
Cited
US2904068A
Cited
US2964062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |