US3111848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive gauge
Assignee: Texas Instruments Inc
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Filing: 1960-12-29
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Granted: 1963-11-26
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Cornelison Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:22
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PRESSURE MEASURING INSTRUMENT COMPRISING A FUSED QUARTZ BOURDON TUBE, A FUSED QUARTZ FRAME MEMBER TO WHICH THE TUBE IS INTEGRALLY SECURED, SAID FRAME MEMBER INCLUDING A LEVER ARM AND A LINEARIZING DEVICE, A STRAIN SENSITIVE ELEMENT HAVING AN ELECTRICAL RESISTANCE DEPENDENT ON THE STRAIN TO WHICH IT IS SUBJECTED, MEANS MOUNTING THE ELEMENT ON THE FRAME MEMBER, AND MEANS FOR TRANSFERRING THE MOVEMENT OF THE TIP OF THE TUBE IN ACCORDANCE WITH A CHANGE IN PRESSURE THROUGH THE QUARTZ
Claim 2
Dependent Claim
80 words
A PRESSURE MEASURING INSTRUMENT COMPRISING A FUSED QUARTZ BOURDON TUBE, A FUSED QUARTZ FRAME MEMBER TO WHICH THE TUBE IS INTEGRALLY SECURED, SAID FRAME MEMBER INCLUDING A LEVER ARM AND A LINEARIZING DEVICE, A STRAIN SENSITIVE ELEMENT HAVING AN ELECTRICAL RESISTANCE DEPENDENT ON THE STRAIN TO WHICH IT IS SUBJECTED, MEANS MOUNTING THE ELEMENT ON THE FRAME MEMBER, AND MEANS FOR TRANSFERRING THE MOVEMENT OF THE TIP OF THE TUBE IN ACCORDANCE WITH A CHANGE IN PRESSURE THROUGH THE QUARTZ
References Cited (Backward Citations)
US2059549A
Cited
US2279261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |