US3343403A
Expired / Lapsed
US
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Apparatus for the measurement of the velocity of sound in a gas
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1964-01-13
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Granted: 1967-09-26
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Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 Romani Lucien
- 👤 Meuwese Jean
- 👤 Frierese Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:02
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/02; G01N29/032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
APPARATUS FOR THE ABSOLUTE MEASUREMENT OF THE VELOCITY OF SOUND WITHIN A GAS COMPRISING, MEANS FORMING A FULLY ENCLOSED RESONANCE CAVITY HAVING THE SHAPE OF A RIGHT CIRCULAR CYLINDER AND HAVING ONE BASE FORMED BY A THIN FLUID-TIGHT DIAPHRAGM; MEANS FORMING AN EXCITATION CAVITY WHICH IS EXTERNAL TO SAID RESONANCE CAVITY AND INCLUDES A PORTION OF SAID DIAPHRAGM AS A WALL THEREOF; EXCITATION MEANS HOUSED WITHIN SAID EXCITATION CAVITY FOR GENERATING VIBRATIONS; MEANS HOUSED WITHIN SAID EXCITATION CAVITY FOR DETECTING VIBRATIONS; MEANS FOR FILLING SAID CAVITIES WITH GAS; AND MEANS FOR DISCHARGING SAID GAS FROM SAID CAVITIES.
Claim 2
Dependent Claim
97 words
APPARATUS FOR THE ABSOLUTE MEASUREMENT OF THE VELOCITY OF SOUND WITHIN A GAS COMPRISING, MEANS FORMING A FULLY ENCLOSED RESONANCE CAVITY HAVING THE SHAPE OF A RIGHT CIRCULAR CYLINDER AND HAVING ONE BASE FORMED BY A THIN FLUID-TIGHT DIAPHRAGM; MEANS FORMING AN EXCITATION CAVITY WHICH IS EXTERNAL TO SAID RESONANCE CAVITY AND INCLUDES A PORTION OF SAID DIAPHRAGM AS A WALL THEREOF; EXCITATION MEANS HOUSED WITHIN SAID EXCITATION CAVITY FOR GENERATING VIBRATIONS; MEANS HOUSED WITHIN SAID EXCITATION CAVITY FOR DETECTING VIBRATIONS; MEANS FOR FILLING SAID CAVITIES WITH GAS; AND MEANS FOR DISCHARGING SAID GAS FROM SAID CAVITIES.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |