US3123791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure transducer
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
A PRESSURE TRANSDUCER COMPRISING A BASE PLATE, AN ARCUATE BOURDON TUBE SUPPORTED AT ONE END ON SAID BASE PLATE, THE FREE END OF SAID BOURDON TUBE BEING SEALED CLOSED AND BEING MOVABLE ALONG AN ARC UPON A CHANGE IN PRESSURE APPLIED WITHIN SAID BOURDON TUBE, A RIGID ARM SECURED AT ONE END TO THE FREE END OF SAID BOURDON TUBE, SAID ARM BEING SUBSTANTIALLY PARALLEL TO SAID BASE PLATE AND EXTENDING ACROSS THE CENTER OF THE ARC OF MOVEMENT OF THE FREE END OF THE BOURDON TUBE, MEANS SUPPORTING SAID ARM ON SAID BASE PLATE FOR ROTATION ABOUT THE CENTER OF THE ARC OF MOVEMENT OF THE FREE END OF THE BOURDON TUBE BUT PREVENTING MOVEMENT OF SAID ARM RADIALLY OF THE CENTER OF THE ARC, AN ELECTRICAL RESISTANCE ELEMENT MOUNTED ON SAID BASE PLATE, A CONTACT SECURED TO THE FREE END OF SAID BOURDON TUBE AND HAVING SUBSTANTIALLY POINT CONTACT WITH SAID RESISTANCE ELEMENT, SAID CONTACT BEING SLIDABLE ALONG SAID RESISTANCE ELEMENT UPON MOVEMENT OF THE FREE END OF THE BOURDON TUBE, AND A COUNTERWEIGHT ON THE OTHER END OF THE ARM, SAID COUNTERWEIGHT BEING OF A SIZE TO BALANCE THE WEIGHT ON THE FREE END OF THE BOURDON TUBE.
Claim 2
Dependent Claim
201 words
A PRESSURE TRANSDUCER COMPRISING A BASE PLATE, AN ARCUATE BOURDON TUBE SUPPORTED AT ONE END ON SAID BASE PLATE, THE FREE END OF SAID BOURDON TUBE BEING SEALED CLOSED AND BEING MOVABLE ALONG AN ARC UPON A CHANGE IN PRESSURE APPLIED WITHIN SAID BOURDON TUBE, A RIGID ARM SECURED AT ONE END TO THE FREE END OF SAID BOURDON TUBE, SAID ARM BEING SUBSTANTIALLY PARALLEL TO SAID BASE PLATE AND EXTENDING ACROSS THE CENTER OF THE ARC OF MOVEMENT OF THE FREE END OF THE BOURDON TUBE, MEANS SUPPORTING SAID ARM ON SAID BASE PLATE FOR ROTATION ABOUT THE CENTER OF THE ARC OF MOVEMENT OF THE FREE END OF THE BOURDON TUBE BUT PREVENTING MOVEMENT OF SAID ARM RADIALLY OF THE CENTER OF THE ARC, AN ELECTRICAL RESISTANCE ELEMENT MOUNTED ON SAID BASE PLATE, A CONTACT SECURED TO THE FREE END OF SAID BOURDON TUBE AND HAVING SUBSTANTIALLY POINT CONTACT WITH SAID RESISTANCE ELEMENT, SAID CONTACT BEING SLIDABLE ALONG SAID RESISTANCE ELEMENT UPON MOVEMENT OF THE FREE END OF THE BOURDON TUBE, AND A COUNTERWEIGHT ON THE OTHER END OF THE ARM, SAID COUNTERWEIGHT BEING OF A SIZE TO BALANCE THE WEIGHT ON THE FREE END OF THE BOURDON TUBE.
References Cited (Backward Citations)
US2195813A
Cited
US2622177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |