Patent US3337844A successfully refreshed from Google Patents.
US3337844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid response pressure transducer
Assignee: Individual
•
Filing: 1966-07-06
•
Granted: 1967-08-22
•
Expires: 1986-07-06
Abstract
No abstract record available.
Inventors
- 👤 Frank P Baltakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:51
CPC Classifications
G; G01; G01L; G01L23/00; G01L23/08; G01L23/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PRESSURE TRANSDUCER FOR SENSING TRANSIENT PRESSURES OVER A WIDE PRESSURE RANGE COMPRISING A HOUSING, A PRESSURE RESPONSIVE CRYSTAL ELEMENT FOR SENSING TRANSIENT PRESSURES AND CONVERTING SAID PRESSURES TO ELECTRICAL SIGNALS, A METAL ROD HAVING ONE END BONDED TO ONE SURFACE OF SAID CRYSTAL ELEMENT AND FORMING AN ACOUSTICAL IMPEDANCE MATCH WITH ELEMENT, AND MEANS FOR SECURING SAID ROD AND CRYSTAL TO SAID HOUSING INCLUDING A TEFLON SLEEVE PRESS FITTED BETWEEN SAID ROD AND THE INSIDE WALL OF SAID HOUSING, WHEREBY SAID CRYSTAL IS FREE TO OSCILLATE IN SAID HOUSING BUT IS DAMPED BY SAID ROD.
Claim 2
Dependent Claim
96 words
A PRESSURE TRANSDUCER FOR SENSING TRANSIENT PRESSURES OVER A WIDE PRESSURE RANGE COMPRISING A HOUSING, A PRESSURE RESPONSIVE CRYSTAL ELEMENT FOR SENSING TRANSIENT PRESSURES AND CONVERTING SAID PRESSURES TO ELECTRICAL SIGNALS, A METAL ROD HAVING ONE END BONDED TO ONE SURFACE OF SAID CRYSTAL ELEMENT AND FORMING AN ACOUSTICAL IMPEDANCE MATCH WITH ELEMENT, AND MEANS FOR SECURING SAID ROD AND CRYSTAL TO SAID HOUSING INCLUDING A TEFLON SLEEVE PRESS FITTED BETWEEN SAID ROD AND THE INSIDE WALL OF SAID HOUSING, WHEREBY SAID CRYSTAL IS FREE TO OSCILLATE IN SAID HOUSING BUT IS DAMPED BY SAID ROD.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |