US3177416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driving oscillator for producing supersonic oscillations
Assignee: US Philips Corp
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Filing: 1961-09-07
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Granted: 1965-04-06
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Expires: 1981-09-07
Abstract
No abstract record available.
Inventors
- 👤 Pijls Hermanus Stepha Josephus
- 👤 Blok Lourens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:26
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; H03B5/10; H03B5/30; H03B5/32; H03B5/34; B06B2201/00; B06B2201/50; B06B2201/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
APPARATUS FOR PRODUCING OSCILLATIONS OF A GIVEN FREQUENCY COMPRISING AN AMPLIFYING DEVICE HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, A LOAD CIRCUIT COMPRISING A MAGNETOSTRICTIVE TRANSDUCER INCLUDING MEANS FOR COUPLING SAID TRANSDUCER TO SAID OUTPUT CIRCUIT, SAID LOAD CIRCUIT HAVING A REACTIVE IMPEDANCE COMPONENT AT SAID GIVEN FREQUENCY, MEANS FOR DERIVING A FIRST FEEDBACK SIGNAL FROM SAID TRANSDUCER HAVING A REACTIVE COMPONENT WHICH IS DETERMINED BY SAID REACTIVE IMPEDANCE COMPONENT OF THE LOAD CIRCUIT, MEANS FOR DERIVING A SECOND FEEDBACK SIGNAL FROM SAID OUTPUT CIRCUIT HAVING A REACTIVE COMPONENT WHICH SUBSTANTIALLY COMPENSATES THE REACTIVE COMPONENT OF SAID FIRST FEEDBACK SIGNAL, AND MEANS FOR COMBINING SAID FIRST AND SECOND FEEDBACK SIGNALS AND APPLYING SAID COMBINED SIGNALS TO SAID INPUT CIRCUIT THEREBY TO SUSTAIN OSCILLATIONS OF SAID GIVEN FREQUENCY.
Claim 2
Dependent Claim
128 words
APPARATUS FOR PRODUCING OSCILLATIONS OF A GIVEN FREQUENCY COMPRISING AN AMPLIFYING DEVICE HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, A LOAD CIRCUIT COMPRISING A MAGNETOSTRICTIVE TRANSDUCER INCLUDING MEANS FOR COUPLING SAID TRANSDUCER TO SAID OUTPUT CIRCUIT, SAID LOAD CIRCUIT HAVING A REACTIVE IMPEDANCE COMPONENT AT SAID GIVEN FREQUENCY, MEANS FOR DERIVING A FIRST FEEDBACK SIGNAL FROM SAID TRANSDUCER HAVING A REACTIVE COMPONENT WHICH IS DETERMINED BY SAID REACTIVE IMPEDANCE COMPONENT OF THE LOAD CIRCUIT, MEANS FOR DERIVING A SECOND FEEDBACK SIGNAL FROM SAID OUTPUT CIRCUIT HAVING A REACTIVE COMPONENT WHICH SUBSTANTIALLY COMPENSATES THE REACTIVE COMPONENT OF SAID FIRST FEEDBACK SIGNAL, AND MEANS FOR COMBINING SAID FIRST AND SECOND FEEDBACK SIGNALS AND APPLYING SAID COMBINED SIGNALS TO SAID INPUT CIRCUIT THEREBY TO SUSTAIN OSCILLATIONS OF SAID GIVEN FREQUENCY.
References Cited (Backward Citations)
US1811128A
Cited
US2101272A
Cited
US2759102A
Cited
US2787710A
Cited
US2798953A
Cited
US2889473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |