US2978665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulator device for electric current
Assignee: Antioch College
•
Filing: 1956-07-11
•
Granted: 1961-04-04
•
Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 Vernet Sergius
- 👤 Asakawa George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:36
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/24; H01C; H01C7/00; H01C7/02; H01C7/027; H02; H02H; H02H9/00; H02H9/02; H02H9/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A CURRENT REGULATOR COMPRISING SPACED ELECTRODES, AND PARTIALLY CONDUCTIVE MATERIAL THEREBETWEEN, SAID MATERIAL COMPRISING FINELY DIVIDED CARBON PARTICLES DISPERSED IN A MIXTURE OF POLYETHYLENE AND POLYETETRAFLUROETHYLENE, SAID POLYTETRAFLUOROETHYLENE PREVENTING FLOW OF THE POLYETHYLENE FROM BETWEEN THE ELECTRODES IN THE TRANSITION TEMPERATURES RANGE OF SAID POLYETHYLENE, WHEREBY, DURING THE PASSAGE OF AN ELECTRIC CURRENT BETWEEN THE ELECTRODES THE CARBON PARTICLES ARE CAUSED TO HEAT AND EXPAND THE POLYETHYLENE SO AS TO INCREASE THE SPACING BETWEEN ADJACENT ONES OF THE CARBON PARTICLES IN SUCH MANNER AS TO CONTROL THE CURRENT FLOW THROUGH THE PARTIALLY CONDUCTIVE MATERIAL.
Claim 2
Dependent Claim
94 words
A CURRENT REGULATOR COMPRISING SPACED ELECTRODES, AND PARTIALLY CONDUCTIVE MATERIAL THEREBETWEEN, SAID MATERIAL COMPRISING FINELY DIVIDED CARBON PARTICLES DISPERSED IN A MIXTURE OF POLYETHYLENE AND POLYETETRAFLUROETHYLENE, SAID POLYTETRAFLUOROETHYLENE PREVENTING FLOW OF THE POLYETHYLENE FROM BETWEEN THE ELECTRODES IN THE TRANSITION TEMPERATURES RANGE OF SAID POLYETHYLENE, WHEREBY, DURING THE PASSAGE OF AN ELECTRIC CURRENT BETWEEN THE ELECTRODES THE CARBON PARTICLES ARE CAUSED TO HEAT AND EXPAND THE POLYETHYLENE SO AS TO INCREASE THE SPACING BETWEEN ADJACENT ONES OF THE CARBON PARTICLES IN SUCH MANNER AS TO CONTROL THE CURRENT FLOW THROUGH THE PARTIALLY CONDUCTIVE MATERIAL.
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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |