Patent US3247723A successfully refreshed from Google Patents.
US3247723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerometer, gravity meter and gas flow responsive instrument
Assignee: Individual
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Filing: 1964-07-20
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Granted: 1966-04-26
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Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Raphael O Yavne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:18
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/18; G01P15/006; G01P15/008; G01P15/02; G01P15/08; G01P15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A GAS FLOW RESPONSIVE INSTRUMENT COMPRISING TWO CHAMBERS, A MASS OF RELATIVELY HOT GAS IN ONE OF SAID CHAMBERS, A MASS OF RELATIVELY COLD GAS IN THE OTHER OF SAID CHAMBERS, A WALL COMMON TO AND BETWEEN SAID CHAMBERS AND SEPARATING SAID MASSES, SAID WALL BEING PROVIDED WITH A PAIR OF PARALLEL SLOTS, SAID SLOTS BEING AXIALLY OVERLAPPING AND SPACED FROM EACH OTHER, A PAIR OF CONDUCTORS, EACH SAID CONDUCTOR HAVING A RESISTANCE WHICH IS A FUNCTION OF THE TEMPERATURE OF SAID CONDUCTOR, EACH SAID CONDUCTOR BEING ADJACENT TO ONE OF SAID SLOTS AND IN A THERMALLY COOPERATING RELATIONSHIP WITH THE TEMPERATURE WITHIN SAID SLOT, AND MEANS TO MEASURE THE DIFFERENTIAL RESISTANCE OF SAID CONDUCTORS.
Claim 2
Dependent Claim
115 words
A GAS FLOW RESPONSIVE INSTRUMENT COMPRISING TWO CHAMBERS, A MASS OF RELATIVELY HOT GAS IN ONE OF SAID CHAMBERS, A MASS OF RELATIVELY COLD GAS IN THE OTHER OF SAID CHAMBERS, A WALL COMMON TO AND BETWEEN SAID CHAMBERS AND SEPARATING SAID MASSES, SAID WALL BEING PROVIDED WITH A PAIR OF PARALLEL SLOTS, SAID SLOTS BEING AXIALLY OVERLAPPING AND SPACED FROM EACH OTHER, A PAIR OF CONDUCTORS, EACH SAID CONDUCTOR HAVING A RESISTANCE WHICH IS A FUNCTION OF THE TEMPERATURE OF SAID CONDUCTOR, EACH SAID CONDUCTOR BEING ADJACENT TO ONE OF SAID SLOTS AND IN A THERMALLY COOPERATING RELATIONSHIP WITH THE TEMPERATURE WITHIN SAID SLOT, AND MEANS TO MEASURE THE DIFFERENTIAL RESISTANCE OF SAID CONDUCTORS.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |