US3374334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency heating system
Assignee: Chemetron Corp
•
Filing: 1963-04-29
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Granted: 1968-03-19
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Boyd R Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:47
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50; H05B6/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A HIGH FREQUENCY DIELECTRIC SYSTEM FOR HEATING CYLINDRICAL DIELECTRIC MATERIAL TO A PREDETERMINED DESIRED TEMPERATURE BETWEEN A PAIR OF SPACED ELECTRODES IN A HIGH FREQUENCY DIELECTRIC HEATING SYSTEM, THE COMBINATION COMPRISING A ROLLER FORMING AN ELECTRODE AND AN ADDITIONAL ELECTRODE DEFINING SPACED ELECTRODES, AN ADDITIONAL ROLLER DEFINING A PAIR OF ELONGATED ROLLERS WITH SAID FIRST ROLLER FOR SUPPORTING SAID MATERIAL IN HEATING POSITION BETWEEN THE ELECTRODES WITH THE AXIS OF SAID MATERIAL AND OF SAID ROLLERS PARALLEL TO EACH OTHER AND TO SAID ADDITIONAL ELECTRODES; DRIVE MEANS FOR ROTATING AT LEAST ONE OF SAID ROLLERS TO ROTATE SAID MATERIAL CONTINUOUSLY ABOUT ITS AXIS WHILE MAINTAINING SAID AXIS IN PLACE IN HEATING POSITION; AND HIGH FREQUENCY POWER MEANS CONNECTED TO SAID ELECTRODES FOR HEATING SAID MATERIAL TO SAID PREDETERMINED DESIRED TEMPERATURE.
Claim 2
Dependent Claim
131 words
IN A HIGH FREQUENCY DIELECTRIC SYSTEM FOR HEATING CYLINDRICAL DIELECTRIC MATERIAL TO A PREDETERMINED DESIRED TEMPERATURE BETWEEN A PAIR OF SPACED ELECTRODES IN A HIGH FREQUENCY DIELECTRIC HEATING SYSTEM, THE COMBINATION COMPRISING A ROLLER FORMING AN ELECTRODE AND AN ADDITIONAL ELECTRODE DEFINING SPACED ELECTRODES, AN ADDITIONAL ROLLER DEFINING A PAIR OF ELONGATED ROLLERS WITH SAID FIRST ROLLER FOR SUPPORTING SAID MATERIAL IN HEATING POSITION BETWEEN THE ELECTRODES WITH THE AXIS OF SAID MATERIAL AND OF SAID ROLLERS PARALLEL TO EACH OTHER AND TO SAID ADDITIONAL ELECTRODES; DRIVE MEANS FOR ROTATING AT LEAST ONE OF SAID ROLLERS TO ROTATE SAID MATERIAL CONTINUOUSLY ABOUT ITS AXIS WHILE MAINTAINING SAID AXIS IN PLACE IN HEATING POSITION; AND HIGH FREQUENCY POWER MEANS CONNECTED TO SAID ELECTRODES FOR HEATING SAID MATERIAL TO SAID PREDETERMINED DESIRED TEMPERATURE.
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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) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |