US3171047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic inspection apparatus
Assignee: Standard Oil Co
•
Filing: 1962-09-04
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Granted: 1965-02-23
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Jack N Bergman
- 👤 Ostrofsky Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:56
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
AN ULTRASONIC TESTING APPARATUS FOR TRANSMITTING ULTRASONIC WAVES THROUGH A TEST TERMINAL WHICH COMPRISES; A HOUSING HAVING AN OPEN BASE AND A HEAD, SAID HEAD FORMING THE CLOSED END OF SAID HOUSING; A TRANSDUCER CASING RIGIDLY MOUNTED WITHIN SAID HOUSING; A PIEZOELECTRIC TYPE CRYSTAL POSITIONED WITHIN SAID CASING, SAID TRANSDUCER HAVING AT LEAST ONE EXPOSED FACE; MEANS FOR SUPPLYING ELECTRICAL ENERGY TO SAID CRYSTAL; MEANS FOR SUPPLYING A LIQUID TO SAID HOUSING; A CONDUIT HAVING A PLURALITY OF APERTURES POSITIONED WITHIN THE HOUSING TO RECEIVE SAID LIQUID AND DIRECT A STREAM OF SAID LIQUID AGAINST THE TRANSDUCER CASING AT A POINT TO THE REAR OF THE EXPOSED FACE THEREOF, THEREBY COOLING SAID TRANSDUCER AND SUPPLYING A LIQUID TO FORM A COUPLANT BETWEEN THE CRYSTAL AND THE WORKING FACE OF A TEST MATERIAL POSITIONED ADJACENT TO THE OPEN BASE OF SAID HOUSING.
Claim 2
Dependent Claim
141 words
AN ULTRASONIC TESTING APPARATUS FOR TRANSMITTING ULTRASONIC WAVES THROUGH A TEST TERMINAL WHICH COMPRISES; A HOUSING HAVING AN OPEN BASE AND A HEAD, SAID HEAD FORMING THE CLOSED END OF SAID HOUSING; A TRANSDUCER CASING RIGIDLY MOUNTED WITHIN SAID HOUSING; A PIEZOELECTRIC TYPE CRYSTAL POSITIONED WITHIN SAID CASING, SAID TRANSDUCER HAVING AT LEAST ONE EXPOSED FACE; MEANS FOR SUPPLYING ELECTRICAL ENERGY TO SAID CRYSTAL; MEANS FOR SUPPLYING A LIQUID TO SAID HOUSING; A CONDUIT HAVING A PLURALITY OF APERTURES POSITIONED WITHIN THE HOUSING TO RECEIVE SAID LIQUID AND DIRECT A STREAM OF SAID LIQUID AGAINST THE TRANSDUCER CASING AT A POINT TO THE REAR OF THE EXPOSED FACE THEREOF, THEREBY COOLING SAID TRANSDUCER AND SUPPLYING A LIQUID TO FORM A COUPLANT BETWEEN THE CRYSTAL AND THE WORKING FACE OF A TEST MATERIAL POSITIONED ADJACENT TO THE OPEN BASE OF SAID HOUSING.
References Cited (Backward Citations)
US2916265A
Cited
US2956185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |