Patent US2437381A successfully refreshed from Google Patents.
Patent US3151284A successfully refreshed from Google Patents.
US3151284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feedback compensated magnetostrictive vibration device
Assignee: Cavitron Ultrasonics Inc
•
Filing: 1961-03-20
•
Granted: 1964-09-29
•
Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Kleesattel Claus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/40; B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0238; B06B1/0246; B06B1/0261; B06B2201/00; B06B2201/50; B06B2201/58
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
157 words
AN ELECTRO-MECHANICAL RESONANT SYSTEM COMPRISING A WORK PERFORMING, VARIABLY LOADED MECHANICAL PART INCLUDING A POLARIZED, MAGNETOSTRICTIVE TRANSDUCER MEMBER OPERATIVELY CONNECTED TO A TOOL AND HAVING A DRIVING COIL IN SURROUNDING RELATION THERETO, OSCILLATION GENERATING MEANS OPERATIVE TO SUPPLY ALTERNATING CURRENT TO SAID DRIVING COIL SO THAT THE LATTER ESTABLISHES AN ALTERNATING ELECTROMAGNETIC FIELD WHICH SETS UP COMPRESSIONAL WAVES IN SAID TRANSDUCER MEMBER AT A RESONANT FREQUENCY OF SAID MECHANICAL PART, A PICKUP COIL IN SURROUNDING RELATION TO A POLARIZED MAGNETOSTRICTIVE MEMBER WHICH IS ALSO INCLUDED IN SAID MECHANICAL PART TO HAVE COMPRESSIONAL WAVES SET UP THEREIN AT THE ACTUAL FREQUENCY OF SAID COMPRESSIONAL WAVES IN THE TRANSDUCER MEMBER, THEREBY TO PRODUCE A CORRESPONDING ALTERNATING FEEDBACK VOLTAGE IN SAID PICKUP COIL, SAID MECHANICAL PART, AND EACH OF SAID MAGNETOSTRICTIVE MEMBERS INCLUDED THEREIN, HAVING LENGTHS WHICH EACH ARE AN INTEGRAL NUMBER OF HALF WAVELENGTHS OF SAID COMPRESSIONAL WAVES SET UP THEREIN AND SAID DRIVING AND PICK-UP COILS BEING LO-
Claim 2
Dependent Claim
157 words
AN ELECTRO-MECHANICAL RESONANT SYSTEM COMPRISING A WORK PERFORMING, VARIABLY LOADED MECHANICAL PART INCLUDING A POLARIZED, MAGNETOSTRICTIVE TRANSDUCER MEMBER OPERATIVELY CONNECTED TO A TOOL AND HAVING A DRIVING COIL IN SURROUNDING RELATION THERETO, OSCILLATION GENERATING MEANS OPERATIVE TO SUPPLY ALTERNATING CURRENT TO SAID DRIVING COIL SO THAT THE LATTER ESTABLISHES AN ALTERNATING ELECTROMAGNETIC FIELD WHICH SETS UP COMPRESSIONAL WAVES IN SAID TRANSDUCER MEMBER AT A RESONANT FREQUENCY OF SAID MECHANICAL PART, A PICKUP COIL IN SURROUNDING RELATION TO A POLARIZED MAGNETOSTRICTIVE MEMBER WHICH IS ALSO INCLUDED IN SAID MECHANICAL PART TO HAVE COMPRESSIONAL WAVES SET UP THEREIN AT THE ACTUAL FREQUENCY OF SAID COMPRESSIONAL WAVES IN THE TRANSDUCER MEMBER, THEREBY TO PRODUCE A CORRESPONDING ALTERNATING FEEDBACK VOLTAGE IN SAID PICKUP COIL, SAID MECHANICAL PART, AND EACH OF SAID MAGNETOSTRICTIVE MEMBERS INCLUDED THEREIN, HAVING LENGTHS WHICH EACH ARE AN INTEGRAL NUMBER OF HALF WAVELENGTHS OF SAID COMPRESSIONAL WAVES SET UP THEREIN AND SAID DRIVING AND PICK-UP COILS BEING LO-
Claim 3
Dependent Claim
36 words
AN ELECTRO-MECHANICAL RESONANT SYSTEM AS IN CLAIM 1; WHEREIN SAID ISOLATING MEANS INCLUDES ELECTRICALLY ENERGIZED MEANS GENERATING AN ELECTROMAGNETIC COMPENSATING FIELD COUNTER TO THE FIRST MENTIONED ELECTROMAGNETIC FIELD FOR ISOLATING THE LATTER FROM SAID PICKUP COIL.
References Cited (Backward Citations)
USRE19461E
Cited
US1882394A
Cited
US1966446A
Cited
US2587593A
Cited
US2498760A
Cited
US2872578A
Cited
US2916704A
Cited
US2848672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |