US3432691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillatory circuit for electro-acoustic converter
Assignee: Branson Ultrasonics Corp
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Filing: 1966-09-15
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Granted: 1969-03-11
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Expires: 1986-09-15
Abstract
No abstract record available.
Inventors
- 👤 Andrew Shoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:37
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0238; B06B1/0246; B06B1/0253; H; H03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1231; H03B5/1296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN OSCILLATORY CIRCUIT FOR DRIVING AN ELECTRO-ACOUSTIC CONVERTER SUBSTANTIALLY AT PARALLEL RESONANCE COMPRISING: A LOAD CIRCUIT INCLUDING AN ELECTRO-ACOUSTIC CONVERTER HAVING A PREDETERMINED NATURAL FREQUENCY OF OSCILLATION AND SAID LOAD CIRCUIT EXHIBITING A CAPACTIVE REACTANCE AT SAID NATURAL FREQUENCY; A DRIVING CIRCUIT COUPLED TO SAID LOAD CIRCUIT AND INCLUDING A SOURCE OF DIRECT CURRENT, A SWTICHING MEANS FOR PROVIDING PULSES OF ENERGY FROM SAID SOURCE, AND THE SERIES CONNECTION OF AN INDUCTANCE AND A CAPACITANCE; SAID INDUCTANCE PROVIDING A INDUCTIVE REACTANCE WHICH SUBSTANTIALLY AT THE PARALLEL RESONANCE FREQUENCY OF THE CONVERTER EQUALS THE CAPACTIVE REACTANCE OF SAID DRIVING CIRCUIT AND OF SAID LOAD CIRCUIT RELFECTED IN SAID DRIVING CIRCUIT, AND
Claim 2
Dependent Claim
110 words
AN OSCILLATORY CIRCUIT FOR DRIVING AN ELECTRO-ACOUSTIC CONVERTER SUBSTANTIALLY AT PARALLEL RESONANCE COMPRISING: A LOAD CIRCUIT INCLUDING AN ELECTRO-ACOUSTIC CONVERTER HAVING A PREDETERMINED NATURAL FREQUENCY OF OSCILLATION AND SAID LOAD CIRCUIT EXHIBITING A CAPACTIVE REACTANCE AT SAID NATURAL FREQUENCY; A DRIVING CIRCUIT COUPLED TO SAID LOAD CIRCUIT AND INCLUDING A SOURCE OF DIRECT CURRENT, A SWTICHING MEANS FOR PROVIDING PULSES OF ENERGY FROM SAID SOURCE, AND THE SERIES CONNECTION OF AN INDUCTANCE AND A CAPACITANCE; SAID INDUCTANCE PROVIDING A INDUCTIVE REACTANCE WHICH SUBSTANTIALLY AT THE PARALLEL RESONANCE FREQUENCY OF THE CONVERTER EQUALS THE CAPACTIVE REACTANCE OF SAID DRIVING CIRCUIT AND OF SAID LOAD CIRCUIT RELFECTED IN SAID DRIVING CIRCUIT, AND
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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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |