Patent US3237445A successfully refreshed from Google Patents.
US3237445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic inspection device
Assignee: AMF Inc
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Filing: 1962-08-20
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Granted: 1966-03-01
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Expires: 1982-08-20
Abstract
No abstract record available.
Inventors
- 👤 Fenton M Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:53
CPC Classifications
G; G01; G01B; G01B17/00; G01B17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN ULTRASONIC MEASURING APPARATUS, THE COMBINATION OF MEANS ACOUSTICALLY COUPLED TO THE SURFACE OF A MEMBER BEING MEASURED FOR SUBSTANTIALLY SIMULTANEOUSLY INDURING THEREIN UNIFORM ULTRASONIC ENERGY HAVING A WIDE BAND FREQUENCY DISTRIBUTION IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO SAID SURFACE; A TRANSDUCER ACOUSTICALLY COUPLED TO THE MEMBER AND RESPONSIVE TO SAID ULTRASONIC ENERGY AFTER PASSING THROUGH THE MEMBER TO PROVIDE CORRESPONDING ELECTRICAL SIGNALS HAVING PREDOMINANT FREQUENCY COMPONENTS CORRESPONDING TO THE RESONANT FREQUENCIES OF THE MEMBER; A PLURALITY OF FREQUENCY RESPONSIVE CIRCUIT MEANS EACH CONNECTED TO SAID TRANSDUCER AND EACH RESPONSIVE TO AN INTEGRAL MULTIPLE OF PREDOMINANT FREQUENCIES CORRESPONDING TO DIFFERENT PREDETERMINED RANGES OF MEMBER DIMENSIONS; AND INDICATING MEANS CONNECTED TO SAID PLURALITY OF CIRCUIT MEANS TO INDICATE WHICH ONE OF SAID FREQUENCY RESPONSIVE CIRCUIT MEANS DETECTS THE PREDOMINANT FREQUENCIES.
Claim 2
Dependent Claim
129 words
IN ULTRASONIC MEASURING APPARATUS, THE COMBINATION OF MEANS ACOUSTICALLY COUPLED TO THE SURFACE OF A MEMBER BEING MEASURED FOR SUBSTANTIALLY SIMULTANEOUSLY INDURING THEREIN UNIFORM ULTRASONIC ENERGY HAVING A WIDE BAND FREQUENCY DISTRIBUTION IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO SAID SURFACE; A TRANSDUCER ACOUSTICALLY COUPLED TO THE MEMBER AND RESPONSIVE TO SAID ULTRASONIC ENERGY AFTER PASSING THROUGH THE MEMBER TO PROVIDE CORRESPONDING ELECTRICAL SIGNALS HAVING PREDOMINANT FREQUENCY COMPONENTS CORRESPONDING TO THE RESONANT FREQUENCIES OF THE MEMBER; A PLURALITY OF FREQUENCY RESPONSIVE CIRCUIT MEANS EACH CONNECTED TO SAID TRANSDUCER AND EACH RESPONSIVE TO AN INTEGRAL MULTIPLE OF PREDOMINANT FREQUENCIES CORRESPONDING TO DIFFERENT PREDETERMINED RANGES OF MEMBER DIMENSIONS; AND INDICATING MEANS CONNECTED TO SAID PLURALITY OF CIRCUIT MEANS TO INDICATE WHICH ONE OF SAID FREQUENCY RESPONSIVE CIRCUIT MEANS DETECTS THE PREDOMINANT FREQUENCIES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |