US3228248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure transducer
Assignee: Synventive Molding Solutions Inc
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Filing: 1962-11-23
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Granted: 1966-01-11
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Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Yao T Li
- 👤 Lee Shih Ying
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:45
CPC Classifications
G; G01; G01L; G01L23/00; G01L23/08; G01L23/18; G01L9/00; G01L9/0041; G01L9/0051; G01L9/006
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
161 words
A PRESSURE TRANSDUCER COMPRISING A FRAME, A DIAPHRAGM EXTENDING ACROSS AND CLOSING ONE END OF THE FRAME, AN ELASTIC RESTRAINING MEMBER WITHIN THE FRAME AND SUPPORTING AT ONE END THE CIRCULAR CENTRAL PORTION OF THE DIAPHRAGM, A SUPPORT WITHIN THE FRAME HAVING AN ANNULAR PORTION SURROUNDING THE ELASTIC RESTRAINING MEMBER, AND SUPPORTING AT ONE END A SECOND PORTION OF THE DIAPHRAGM BETWEEN THE ELASTIC RESTRAINING MEMBER AND THE FRAME, SAID DIAPHRAGM FORMING A DISHED ANNULAR SECTION BETWEEN THE ELASTIC RESTRAINING MEMBER AND THE SUPPORT, SAID MEMBER AND SUPPORT HAVING SPRING CONTANTS WHICH CAUSE THE ONE END OF THE SUPPORT TO DISPLACE A DISTANCE EQUAL TO THE DISPLACEMENT OF THE ONE END OF THE ELASTIC RESTRAINING MEMBER WHEN PRESSURE IS APPLIED TO THE DIAPHRAGM TO PRESERVE THE SHAPE OF THE DISHED ANNULAR SECTION, AND SIGNAL PRODUCING MEANS OPERATIVELY CONNECTED TO THE ELASTIC RESTRAINING MEMBER FOR RENDERING A SIGNAL WHICH IS A MEASURE OF THE DISPLACEMENT OF THE ONE END OF SAID MEMBER.
References Cited (Backward Citations)
US2380983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |