US3237123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanical oscillator apparatus
Assignee: General Electric Co
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Filing: 1961-08-08
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Granted: 1966-02-22
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Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 Robert L Watters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:22
CPC Classifications
H; H03; H03B; H03B7/00; H03B7/02; H03B7/06; H03B7/08; H03B5/00; H03B5/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN ELECTROMECHANICAL OSCILLATOR COMPRISING: A TUNNEL DIODE DEVICE EXHIBITING A NEGATIVE RESISTANCE REGION IN THE LOW FORWARD VOLTAGE RANGE OF ITS CURRENT-VOLTAGE CHARACTERISTIC; A FREQUENCY DETERMINATING ELEMENT INCLUDING AN OSCILLATING MEMBER HAVING A NATURAL MECHANICAL FREQUENCY AND AN EXCITING WINDING THEREFOR; MEANS COUPLING SAID TUNNEL DIODE DEVICE IN CIRCUIT WITH THE EXCITING WINDING OF SAID FREQUENCY DETERMINING ELEMENT; AND MEANS FOR RENDERING THE OSCILLATOR SELF-STARTING INCLUDING BIAS MEANS COUPLED TO SAID TUNNEL DIODE DEVICE FOR ESTABLISHING A DIRECT CURRENT LOAD LINE THEREFOR WHICH INTERSECTS THE CURRENT-VOLTAGE CHARACTERISTIC ONLY IN SAID NEGATIVE RESISTANCE REGION.
Claim 2
Dependent Claim
93 words
AN ELECTROMECHANICAL OSCILLATOR COMPRISING: A TUNNEL DIODE DEVICE EXHIBITING A NEGATIVE RESISTANCE REGION IN THE LOW FORWARD VOLTAGE RANGE OF ITS CURRENT-VOLTAGE CHARACTERISTIC; A FREQUENCY DETERMINATING ELEMENT INCLUDING AN OSCILLATING MEMBER HAVING A NATURAL MECHANICAL FREQUENCY AND AN EXCITING WINDING THEREFOR; MEANS COUPLING SAID TUNNEL DIODE DEVICE IN CIRCUIT WITH THE EXCITING WINDING OF SAID FREQUENCY DETERMINING ELEMENT; AND MEANS FOR RENDERING THE OSCILLATOR SELF-STARTING INCLUDING BIAS MEANS COUPLED TO SAID TUNNEL DIODE DEVICE FOR ESTABLISHING A DIRECT CURRENT LOAD LINE THEREFOR WHICH INTERSECTS THE CURRENT-VOLTAGE CHARACTERISTIC ONLY IN SAID NEGATIVE RESISTANCE REGION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |