US3344658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test cell using acoustic energy
Assignee: Combustion Engineering Inc
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Filing: 1964-09-23
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Granted: 1967-10-03
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Expires: 1984-09-23
Abstract
No abstract record available.
Inventors
- 👤 Charles G Heisig
- 👤 Richard L Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:33
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
IN THE COMBINATION OF ACOUSTIC WAVE ENERGY TRANSDUCING MEANS AND A PIPE-SECTION OF RIGID MATERIAL, SAID ACOUSTIC WAVE ENERGY TRANSDUCING MEANS BEING ARRANGED TO RESPECTIVELY CREATE ACOUSTIC WAVE ENERGY IN MATERIAL IN SAID PIPE-SECTION, AND TO SENSE ACOUSTIC WAVE ENERGY IN SAID MATERIAL IN SAID PIPE-SECTION FOR DETERMINING A PROPERTY OF SAID MATERIAL, THE IMPROVEMENT COMPRISING A MANTLE ENVELOPING SUBSTANTIALLY THE ENTIRE EXTERIOR SURFACE OF SAID PIPE-SECTION CORRESPONDING TO THE ACTIVE LENGTH THEREOF, SAID MANTLE CONTACTING SUBSTANTIALLY THE ENTIRE SAID SURFACE; SAID MANTLE BEING MADE OF ACOUSTICALLY DEAD MATERIAL AND LOADING SAID PIPE-SECTION SUCH AS TO REDUCE SAID ACTIVE LENGTH.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |