Patent US3124959A successfully refreshed from Google Patents.
US3124959A
Expired / Lapsed
US
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Primary differential pressure sensing
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
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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 09:34
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)
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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 |