Patent US3378705A successfully refreshed from Google Patents.
US3378705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic transducers and method of manufacture thereof
Assignee: ThyssenKrupp Budd Co
•
Filing: 1966-01-26
•
Granted: 1968-04-16
•
Expires: 1986-01-26
Abstract
No abstract record available.
Inventors
- 👤 John P Bacon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:02
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0662; Y; Y10; Y10T; Y10T29/00; Y10T29/42; Y10T29/49; Y10T29/49002; Y10T29/49007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN AN ULTRASONIC TRANSDUCER, A TRANSDUCER ELEMENT, AN ELECTRICALLY CONDUCTIVE METALLIC FOIL ELECTRODE BONDED TO AT LEAST ONE FACE OF SAID TRANSDUCER ELEMENT, SAID ONE FACE OF SAID TRANSDUCER ELEMENT INCLUDING SAID ELECTRODE HAVING A MULTIPLICITY OF DISCONTINUITIES FORMED OVER SUBSTANTIALLY THE ENTIRE SAID ONE FACE TO THEREBY CANCEL LOCAL STRESS AREAS PRODUCED BY UNINTENTIONAL LOCAL STRESS BUILDUP AREAS ON SAID ONE FACE BY DISTRIBUTING STRESSES SUBSTANTIALLY EVENLY BETWEEN A MULTIPLICITY OF STRESS RISERS INTRODUCED BY SAID DISCONTINUITIES.
Claim 2
Dependent Claim
78 words
IN AN ULTRASONIC TRANSDUCER, A TRANSDUCER ELEMENT, AN ELECTRICALLY CONDUCTIVE METALLIC FOIL ELECTRODE BONDED TO AT LEAST ONE FACE OF SAID TRANSDUCER ELEMENT, SAID ONE FACE OF SAID TRANSDUCER ELEMENT INCLUDING SAID ELECTRODE HAVING A MULTIPLICITY OF DISCONTINUITIES FORMED OVER SUBSTANTIALLY THE ENTIRE SAID ONE FACE TO THEREBY CANCEL LOCAL STRESS AREAS PRODUCED BY UNINTENTIONAL LOCAL STRESS BUILDUP AREAS ON SAID ONE FACE BY DISTRIBUTING STRESSES SUBSTANTIALLY EVENLY BETWEEN A MULTIPLICITY OF STRESS RISERS INTRODUCED BY SAID DISCONTINUITIES.
References Cited (Backward Citations)
US2345648A
Cited
US2445310A
Cited
US2799789A
Cited
US2731573A
Cited
US2988728A
Cited
US2875354A
Cited
US2956185A
Cited
US3340410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |