US3026604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making electric resistance heaters
Assignee: Edwin L Wiegand Co
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Filing: 1958-10-29
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Granted: 1962-03-27
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Expires: 1978-10-29
Abstract
No abstract record available.
Inventors
- 👤 Alben C Boggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:29
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083; Y10T29/49087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
THE METHOD OF MAKING AN ELECTRIC RESISTANCE HEATING ELEMENT, WHICH COMPRISES THE FOLLOWING STEPS IN NUMBERED ORDER (1) PRESSING THE APERTURED FACE OF A RIGID MEMBER AGAINST AND INTO THE FACE OF A SHEET OF UNCURED PLIANT DIELECTRIC MATERIAL OF DEFORM THE SHEET FACE BY EXTRUDING UNCURED MATERIAL AT SAID FACE INTO THE MEMBER APERTURES (2) PARTIALLY CURING SAID MATERIAL TO STABILIZE THE SHEET (3) STRIPPING SAID RIGID MEMBER FROM SAID SHEET WHEREBY THE STABILIZED EXTRUDED MATERIAL FORMS PROJECTIONS EXTENDING FROM SAID SHEET AT ITS DEFORMED FACE (4) WINDING A RESISTOR WIRE ABOUT SAID PROJECTIONS TO A DESIRED HEATING PATTERN (5) PLACING A COVERING SHEET OF UNCURED DIELECTRIC MATERIAL FLATWISE AGAINST SAID DEFORMED FACE (6) PRESSING THE TWO SHEETS TOGETHER TO EMBED SAID PROJECTIONS AND SAID RESISTOR WIRE INTO SAID UNCURED COVERING SHEET AND (7) SIMULTANEOUSLY FINISHING THE CURE OF THE PLURALITY CURED MATERIAL AND COMPLETELY CURING THE UNCURED MATERIAL TO PERMANENTLY BOND THE TWO SHEETS.
Claim 2
Independent Claim
156 words
THE METHOD OF MAKING AN ELECTRIC RESISTANCE HEATING ELEMENT, WHICH COMPRISES THE FOLLOWING STEPS IN NUMBERED ORDER (1) PRESSING THE APERTURED FACE OF A RIGID MEMBER AGAINST AND INTO THE FACE OF A SHEET OF UNCURED PLIANT DIELECTRIC MATERIAL OF DEFORM THE SHEET FACE BY EXTRUDING UNCURED MATERIAL AT SAID FACE INTO THE MEMBER APERTURES (2) PARTIALLY CURING SAID MATERIAL TO STABILIZE THE SHEET (3) STRIPPING SAID RIGID MEMBER FROM SAID SHEET WHEREBY THE STABILIZED EXTRUDED MATERIAL FORMS PROJECTIONS EXTENDING FROM SAID SHEET AT ITS DEFORMED FACE (4) WINDING A RESISTOR WIRE ABOUT SAID PROJECTIONS TO A DESIRED HEATING PATTERN (5) PLACING A COVERING SHEET OF UNCURED DIELECTRIC MATERIAL FLATWISE AGAINST SAID DEFORMED FACE (6) PRESSING THE TWO SHEETS TOGETHER TO EMBED SAID PROJECTIONS AND SAID RESISTOR WIRE INTO SAID UNCURED COVERING SHEET AND (7) SIMULTANEOUSLY FINISHING THE CURE OF THE PLURALITY CURED MATERIAL AND COMPLETELY CURING THE UNCURED MATERIAL TO PERMANENTLY BOND THE TWO SHEETS.
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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |