Patent US3252013A successfully refreshed from Google Patents.
US3252013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal oscillator utilizing rate of thermal flow
Assignee: Varo Inc
•
Filing: 1963-01-18
•
Granted: 1966-05-17
•
Expires: 1983-01-18
Abstract
No abstract record available.
Inventors
- 👤 Austin N Stanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:35
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/30; G; G04; G04C; G04C3/00; G04C3/18; H03; H03B; H03B28/00; H10; H10N; H10N10/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A THERMAL OSCILLATOR INCLUDING A THERMALLY CONDUCTING BAR, PELTIER JUNCTIONS AT THE ENDS OF THE BAR, THERMOCOUPLE JUNCTIONS DISPOSED ALONG THE BAR LONGITUDINALLY EQUIDISTANCE FROM THE ENDS OF THE BAR, A SOURCE OF ELECTRIC POWER, A DOUBLE POLE DOUBLE THROW SWITCH CONNECTED BETWEEN THE SOURCE OF ELECTRIC POWER AND THE PELTIER JUNCTIONS FOR REVERSING THE CURRENT FLOW TO THE PELTIER JUNCTIONS, AND MEANS RESPONSIVE TO THE VOLTAGE FROM THE THERMOCOUPLE FOR ACTUATING THE DOUBLE POLE DOUBLE THROW SWITCH, SUCH MEANS COMPRISING A TEMPERATURE DIFFERENCE AND DIRECTION DISCIRMINATOR, A MEANS OF AMPLIFYING THE SIGNAL FROM THE TEMPERATURE DIFFERENCE AND DIRECTION DISCRIMINATOR, AND AN ACTIVATING MOTOR.
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) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |