US3136157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load cell apparatus
Assignee: Toledo Scale Corp
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Filing: 1960-07-11
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Granted: 1964-06-09
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Aniese E Seed
- 👤 Frank E Golding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; G01L1/2218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A SENSING INSTRUMENT COMPRISING A BASE, A DISPLACEABLE MEMBER WHICH IS MOVABLE RELATIVE TO THE BASE, A SENSING APPARATUS FOR MEASURING THE DISPLACEMENT OF SAID MEMBER WITH RESPECT TO THE BASE, A FLEXIBLE DIAPHRAGM EXTENDING BETWEEN SAID MEMBER AND THE BASE, AND A SECOND FLEXIBLE DIAPHRAGM WHICH DEFINES A SEALED SPACE WITH THE BASE AND THE FIRST DIAPHRAGM, AND WHICH IS POSITIVELY COUPLED TO SAID MEMBER SO AS TO CAUSE ONE OF SAID DIAPHRAGMS TO MOVE OUTWARD WITH RESPECT TO SUCH SPACE WHEN THE OTHER MOVES INWARD, THE EFFECTIVE AREA OF THE SECOND DIAPHRAGM BEING SUCH THAT THE FORCE ACTING ON SAID MEMBER WHICH IS CAUSED BY A CHANGE IN THE DIFFERENTIAL BETWEEN THE AMBIENT PRESSURE AND THE PRESSURE INSIDE SUCH SPACE IS SUBSTANTIALLY COUNTERBALANCED BY THE FORCE ACTING ON THE SECOND DIAPHRAGM WHICH IS CAUSED BY SUCH CHANGE IN THE DIFFERENTIAL.
Claim 2
Dependent Claim
142 words
A SENSING INSTRUMENT COMPRISING A BASE, A DISPLACEABLE MEMBER WHICH IS MOVABLE RELATIVE TO THE BASE, A SENSING APPARATUS FOR MEASURING THE DISPLACEMENT OF SAID MEMBER WITH RESPECT TO THE BASE, A FLEXIBLE DIAPHRAGM EXTENDING BETWEEN SAID MEMBER AND THE BASE, AND A SECOND FLEXIBLE DIAPHRAGM WHICH DEFINES A SEALED SPACE WITH THE BASE AND THE FIRST DIAPHRAGM, AND WHICH IS POSITIVELY COUPLED TO SAID MEMBER SO AS TO CAUSE ONE OF SAID DIAPHRAGMS TO MOVE OUTWARD WITH RESPECT TO SUCH SPACE WHEN THE OTHER MOVES INWARD, THE EFFECTIVE AREA OF THE SECOND DIAPHRAGM BEING SUCH THAT THE FORCE ACTING ON SAID MEMBER WHICH IS CAUSED BY A CHANGE IN THE DIFFERENTIAL BETWEEN THE AMBIENT PRESSURE AND THE PRESSURE INSIDE SUCH SPACE IS SUBSTANTIALLY COUNTERBALANCED BY THE FORCE ACTING ON THE SECOND DIAPHRAGM WHICH IS CAUSED BY SUCH CHANGE IN THE DIFFERENTIAL.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |