Patent US3354700A successfully refreshed from Google Patents.
US3354700A
Expired / Lapsed
US
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Apparatus for measuring thickness of materials by sound-wave reflection
Assignee: United States Steel Corp
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Filing: 1964-07-02
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Granted: 1967-11-28
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Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 Donald G Schindler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:25
CPC Classifications
G; G01; G01B; G01B17/00; G01B17/02; Y; Y10; Y10S; Y10S73/00; Y10S73/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
APPARATUS FOR MEASURING THE THICKNESS OF MATERIAL CAPABLE FOR SUPPORTING ULTRASONIC WAVES COMPRISING MEANS FOR INTRODUCING SUCCESSIVE PULSES OF ULTRASONIC WAVES THROUGH ONE SURFACE OF THE MATERIAL AND DELIVERING A SIGNAL ON THE ARRIVAL OF EACH ECHO OF A PLURAL NUMBER OF ECHOES FROM EACH PULSE REFLECTED FROM THE OPPOSITE SURFACE, MEANS FOR GENERATING A TIMING-FREQUENCY WAVE, MEANS FOR ACCUMULATIVELY COUNTING THE NUMBER OF CYCLES ALONG SAID TIMING FREQUENCY WAVE OCCURRING DURING THE TIME SPANS OF A PREDETERMINED NUMBER OF REFLECTED ECHOES RESULTING FROM A PREDETERMINED PLURAL NUMBER OF SAID PULSES, AND MEANS RESPONSIVE TO SAID COUNTING MEANS FOR INDICATING A THICKNESS MEASUREMENT, SAID PREDETERMINED NUMBER OF ECHOES AND PULSES BEING SELECTED SO THAT SAID MEANS RESPONSIVE TO SAID COUNTING MEANS INDICATE DIRECTLY IN THICKNESS MEASUREMENT UNITS.
Claim 2
Dependent Claim
127 words
APPARATUS FOR MEASURING THE THICKNESS OF MATERIAL CAPABLE FOR SUPPORTING ULTRASONIC WAVES COMPRISING MEANS FOR INTRODUCING SUCCESSIVE PULSES OF ULTRASONIC WAVES THROUGH ONE SURFACE OF THE MATERIAL AND DELIVERING A SIGNAL ON THE ARRIVAL OF EACH ECHO OF A PLURAL NUMBER OF ECHOES FROM EACH PULSE REFLECTED FROM THE OPPOSITE SURFACE, MEANS FOR GENERATING A TIMING-FREQUENCY WAVE, MEANS FOR ACCUMULATIVELY COUNTING THE NUMBER OF CYCLES ALONG SAID TIMING FREQUENCY WAVE OCCURRING DURING THE TIME SPANS OF A PREDETERMINED NUMBER OF REFLECTED ECHOES RESULTING FROM A PREDETERMINED PLURAL NUMBER OF SAID PULSES, AND MEANS RESPONSIVE TO SAID COUNTING MEANS FOR INDICATING A THICKNESS MEASUREMENT, SAID PREDETERMINED NUMBER OF ECHOES AND PULSES BEING SELECTED SO THAT SAID MEANS RESPONSIVE TO SAID COUNTING MEANS INDICATE DIRECTLY IN THICKNESS MEASUREMENT UNITS.
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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |