Patent US2486334A successfully refreshed from Google Patents.
Patent US3149492A successfully refreshed from Google Patents.
US3149492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure gauge
Assignee: Astra Inc
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Filing: 1961-03-06
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Granted: 1964-09-22
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Daniel I Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:27
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A DEVICE FOR MEASURING FLUID PRESSURE IN A FLEXIBLE THIN WALL TUBE COMPRISING A RELATIVELY INFLEXIBLE LATERALLY SLOTTED RING MEMBER, SAID MEMBER BEING ADAPTED TO PASS OVER, SUBSTANTIALLY ENCLOSE, AND TIGHTLY CONTACT A LENGTH OF SAID TUBE WHEREBY TO ALLOW SAID PRESSURE TO EXPAND SAID WALL AND STRESS AND SLIGHTLY DEFLECT SAID MEMBER IN ACCORDANCE WITH THE AMOUNT OF SAID PRESSURE, STRESS DETECTING MEANS BONDED TO SAID MEMBER SO AS TO BE SUBJECTED TO SAID STRESS AND OF THE TYPE HAVING AN ELECTRICAL CHARACTERISTIC THAT VARIES WITH SAID STRESS AND ELECTRICAL INDICATING MEANS DEPENDENT ON SAID CHARACTERISTIC.
Claim 2
Independent Claim
97 words
A DEVICE FOR MEASURING FLUID PRESSURE IN A FLEXIBLE THIN WALL TUBE COMPRISING A RELATIVELY INFLEXIBLE LATERALLY SLOTTED RING MEMBER, SAID MEMBER BEING ADAPTED TO PASS OVER, SUBSTANTIALLY ENCLOSE, AND TIGHTLY CONTACT A LENGTH OF SAID TUBE WHEREBY TO ALLOW SAID PRESSURE TO EXPAND SAID WALL AND STRESS AND SLIGHTLY DEFLECT SAID MEMBER IN ACCORDANCE WITH THE AMOUNT OF SAID PRESSURE, STRESS DETECTING MEANS BONDED TO SAID MEMBER SO AS TO BE SUBJECTED TO SAID STRESS AND OF THE TYPE HAVING AN ELECTRICAL CHARACTERISTIC THAT VARIES WITH SAID STRESS AND ELECTRICAL INDICATING MEANS DEPENDENT ON SAID CHARACTERISTIC.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |