Patent US3201558A successfully refreshed from Google Patents.
US3201558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature controlled device
Assignee: EIDP Inc
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Filing: 1963-05-24
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Granted: 1965-08-17
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Expires: 1983-05-24
Abstract
No abstract record available.
Inventors
- 👤 Lusebrink Elmer Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:29
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/10; H05B6/14; H05B6/145; D; D06; D06C; D06C15/00; D06C15/08; D21; D21F; D21F5/00; D21F5/02; G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/27535; G05D23/27541
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A TEMPERATURE CONTROLLED DEVICE FOR THERMALLY TREATING A SHEET COMPRISING IN COMBINATION (A) A CORE OF HIGH MAGNETIC PERMEABILITY HAVING A CYLINDRICAL SECTION, (B) A FRAME FOR SUPPORTING SAID CORE, (C) AN ELECTRICALLY CONDUCTING COIL CONNECTED TO A SOURCE OF ALTERNATING CURRENT AND SURROUNDING A PORTION OF SAID CORE, (D) A TUBULAR METAL ROLLER HAVING A HIGH COEFFICIENT OF EXPANSION, GOOD THERMAL CONDUCTIITY, LOW SPECIFIC HEAT AND LOW ELECTRICAL RESISTIVITY SURROUNDING THE CYLINDRICAL SECTION OF THE CORE AND JOURNALLED ON SPACED INSULATING BEARING BLOCKS MOUNTED ON SAID CORE, (E) ONE END OF SAID ROLLER, BEING RESTRAINED FROM AXIAL MOVEMENT AND THE OTHER BEING FREE TO MOVE AXIALLY, AND (F) A SWITCH IN THE ELECTRICAL CIRCUIT FOR THE COIL FOR ENERGIZING AND DEENERGIZING THE COIL IN RESPONSE TO AXIAL MOVEMENT OF THE FREE END OF SAID ROLLER.
Claim 2
Dependent Claim
136 words
A TEMPERATURE CONTROLLED DEVICE FOR THERMALLY TREATING A SHEET COMPRISING IN COMBINATION (A) A CORE OF HIGH MAGNETIC PERMEABILITY HAVING A CYLINDRICAL SECTION, (B) A FRAME FOR SUPPORTING SAID CORE, (C) AN ELECTRICALLY CONDUCTING COIL CONNECTED TO A SOURCE OF ALTERNATING CURRENT AND SURROUNDING A PORTION OF SAID CORE, (D) A TUBULAR METAL ROLLER HAVING A HIGH COEFFICIENT OF EXPANSION, GOOD THERMAL CONDUCTIITY, LOW SPECIFIC HEAT AND LOW ELECTRICAL RESISTIVITY SURROUNDING THE CYLINDRICAL SECTION OF THE CORE AND JOURNALLED ON SPACED INSULATING BEARING BLOCKS MOUNTED ON SAID CORE, (E) ONE END OF SAID ROLLER, BEING RESTRAINED FROM AXIAL MOVEMENT AND THE OTHER BEING FREE TO MOVE AXIALLY, AND (F) A SWITCH IN THE ELECTRICAL CIRCUIT FOR THE COIL FOR ENERGIZING AND DEENERGIZING THE COIL IN RESPONSE TO AXIAL MOVEMENT OF THE FREE END OF SAID ROLLER.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |