Patent DE1063341B successfully refreshed from Google Patents.
US3293456A
Expired / Lapsed
US
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Ultrasonic cleaning apparatus
Assignee: Branson Ultrasonics Corp
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Filing: 1963-03-18
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Granted: 1966-12-20
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Shoh Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:40
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12; B08B3/123; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0238; B06B1/0246; B06B1/0253; B06B1/06; B06B1/0607; B06B1/0611; B06B1/0618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A CIRCUIT FOR CONNECTION TO AN ELECTROMECHANICAL TRANSDUCER TO PRODUCE AN ELECTRICAL SIGNAL CORRESPONDING TO THE INSTANTANEOUS LOAD-VARYING COMPONENT OF THE ELECTRICAL IMPEDANCE OF THE TRANSDUCER, SAID CIRCUIT COMPRISING IN COMBINATION: (A) COMPENSATING MEANS FOR DEVELOPING A FIRST ELECTRICAL SIGNAL CORRESPONDING TO THE LOAD-INVARIANT COMPONENET OF THE ELECTRICAL IMPEDANCE OF THE TRANSDUCER, (B) A TRANSFORMER COMPRISING A PRIMARY WINDING INCONDUCTIVELY COUPLED WITH A SECONDARY WINDING, (1) SAID PRIMARY WINDING BEING CONNECTABLE IN CIRCUIT WITH THE TRANSDUCER SO THAT SAID SECONDARLY WINDING PRODUCES A SECOND ELECTRICAL SIGNAL CORRESPONDING TO THE INSTANTANEOUS TOTAL ELECTRICAL IMPEDANCE OF THE TRANSDUCER; AND (C) AN ELECTRICAL SUMMING NETWORK, (1) CONNECTED IN CIRCUIT WITH SAID COMPENSATING MEANS AND WITH THE SECONDARY WINDING OF SAID TRANSFORMER, (2) SAID SUMMING NETWORK SUBTRACTING SAID SECOND ELECTRICAL SIGNAL TO PRODUCE AN OUTPUT ELECTRICAL SIGNAL CORRESPONDING TO THE INSTANTANEOUS LOAD-VARYING COMPONENT OF THE ELECTRICAL IMPEDANCE OF THE TRANSDUCER.
Claim 2
Dependent Claim
146 words
A CIRCUIT FOR CONNECTION TO AN ELECTROMECHANICAL TRANSDUCER TO PRODUCE AN ELECTRICAL SIGNAL CORRESPONDING TO THE INSTANTANEOUS LOAD-VARYING COMPONENT OF THE ELECTRICAL IMPEDANCE OF THE TRANSDUCER, SAID CIRCUIT COMPRISING IN COMBINATION: (A) COMPENSATING MEANS FOR DEVELOPING A FIRST ELECTRICAL SIGNAL CORRESPONDING TO THE LOAD-INVARIANT COMPONENET OF THE ELECTRICAL IMPEDANCE OF THE TRANSDUCER, (B) A TRANSFORMER COMPRISING A PRIMARY WINDING INCONDUCTIVELY COUPLED WITH A SECONDARY WINDING, (1) SAID PRIMARY WINDING BEING CONNECTABLE IN CIRCUIT WITH THE TRANSDUCER SO THAT SAID SECONDARLY WINDING PRODUCES A SECOND ELECTRICAL SIGNAL CORRESPONDING TO THE INSTANTANEOUS TOTAL ELECTRICAL IMPEDANCE OF THE TRANSDUCER; AND (C) AN ELECTRICAL SUMMING NETWORK, (1) CONNECTED IN CIRCUIT WITH SAID COMPENSATING MEANS AND WITH THE SECONDARY WINDING OF SAID TRANSFORMER, (2) SAID SUMMING NETWORK SUBTRACTING SAID SECOND ELECTRICAL SIGNAL TO PRODUCE AN OUTPUT ELECTRICAL SIGNAL CORRESPONDING TO THE INSTANTANEOUS LOAD-VARYING COMPONENT OF THE ELECTRICAL IMPEDANCE OF THE TRANSDUCER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |