US3228232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic inspection device
Assignee: AMF Inc
•
Filing: 1962-08-23
•
Granted: 1966-01-11
•
Expires: 1982-08-23
Abstract
No abstract record available.
Inventors
- 👤 Noel B Proctor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:42
CPC Classifications
G; G01; G01B; G01B17/00; G01B17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN ULTRASONIC MEASURING APPARATUS FOR MEASURING THE DISTANCE OF DISCONTINUITIES FROM THE ADJACENT SURFACE OF A MEMBER UNDER TEST, THE COMBINATION OF, A TRANSMITTING TRANSDUCER ENERGIZED TO PROVIDE A SOURCE OF PROPAGATING ULTRASONIC ENERGY HAVING A LARGE NUMBER OF OVERLAPPING TRANSIENT DISTURBANCES OCCURRING AT RANDOM, THE LEVEL OF SAID ENERGY BEING SUBSTANTIALLY FLAT OVER A WIDE BAND OF FREQUENCIES: A FIRST RECEIVING TRANSDUCER RESPONSIVE TO ULTRASONIC ENERGY REFLECTED OFF AN ADJACENT SURFACE OF THE MEMBER BEING MEASURED; A SECOND RECEIVING TRANSDUCER RESPONSIVE TO ULTRASONIC ENERGY WHICH PASSES THROUGH A PORTION OF THE MEMBER BEING MEASURED AND WHICH IS REFLECTED OFF A DISCONTINUITY OTHER THAN SAID ADJACENT SURFACE; A FIRST CORRELATION DETECTION CIRCUIT CONNECTED TO SAID
Claim 2
Dependent Claim
115 words
IN ULTRASONIC MEASURING APPARATUS FOR MEASURING THE DISTANCE OF DISCONTINUITIES FROM THE ADJACENT SURFACE OF A MEMBER UNDER TEST, THE COMBINATION OF, A TRANSMITTING TRANSDUCER ENERGIZED TO PROVIDE A SOURCE OF PROPAGATING ULTRASONIC ENERGY HAVING A LARGE NUMBER OF OVERLAPPING TRANSIENT DISTURBANCES OCCURRING AT RANDOM, THE LEVEL OF SAID ENERGY BEING SUBSTANTIALLY FLAT OVER A WIDE BAND OF FREQUENCIES: A FIRST RECEIVING TRANSDUCER RESPONSIVE TO ULTRASONIC ENERGY REFLECTED OFF AN ADJACENT SURFACE OF THE MEMBER BEING MEASURED; A SECOND RECEIVING TRANSDUCER RESPONSIVE TO ULTRASONIC ENERGY WHICH PASSES THROUGH A PORTION OF THE MEMBER BEING MEASURED AND WHICH IS REFLECTED OFF A DISCONTINUITY OTHER THAN SAID ADJACENT SURFACE; A FIRST CORRELATION DETECTION CIRCUIT CONNECTED TO SAID
References Cited (Backward Citations)
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |