US3279042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a contact layer on a silicon-containing material
Assignee: Siemens Plania Werke AG
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Filing: 1962-07-19
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Granted: 1966-10-18
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Expires: 1982-07-19
Abstract
No abstract record available.
Inventors
- 👤 Fitzer Erich
- 👤 Rubisch Ottmar
- 👤 Selka Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:20
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; H01; H01B; H01B1/00; H05B3/02; H05B3/06; Y; Y10; Y10S; Y10S228/00; Y10S228/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/49098; Y10T29/4998; Y10T29/49982; Y10T29/49984
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
71 words
THE METHOD OF PRODUCING AN ELECTRIC RESISTANCE HEATER ELEMENT WHICH COMPRISES FORMING INDENTATIONS IN THE ENDS OF A SILICIDE HEATING ROD, FLAME SPRAYING A FIRST COATING OF ALUMINUM TO A THICKNESS OF ABOUT 0.1 TO ABOUT 0.5 MM. THICKNESS ON SAID ENDS AND THEN CASTING A THICKER SECOND COATING OF ALUMINUM ON SAID ENDS WHILE REMOVING THE OXIDE LAYER THAT HAD FORMED ON THE INITIAL COATING AND SOLIDIFYING SAID COMPOSITE COATING.
Claim 2
Independent Claim
71 words
THE METHOD OF PRODUCING AN ELECTRIC RESISTANCE HEATER ELEMENT WHICH COMPRISES FORMING INDENTATIONS IN THE ENDS OF A SILICIDE HEATING ROD, FLAME SPRAYING A FIRST COATING OF ALUMINUM TO A THICKNESS OF ABOUT 0.1 TO ABOUT 0.5 MM. THICKNESS ON SAID ENDS AND THEN CASTING A THICKER SECOND COATING OF ALUMINUM ON SAID ENDS WHILE REMOVING THE OXIDE LAYER THAT HAD FORMED ON THE INITIAL COATING AND SOLIDIFYING SAID COMPOSITE COATING.
Claim 3
Independent Claim
84 words
THE METHOD OF PRODUCING AN ELECTRIC RESITANCE HEATER ELEMENT WHICH COMPRISES FORMING INDENTATIONS IN THE ENDS OF A SILICATE HEATING ROD, FLAME SPRAYING A FIRST COATING OF ALUMINUM TO A THICKNESS OF ABOUT 0.1 TO ABOUT 0.5 MM. THICKNESS ON SAID ENDS AND THEN CASTING A THICKER SECOND COATING OF ALUMINUM ON SAID ENDS WHILE REMOVING THE OXIDE LAYER THAT HAD FORMED ON THE INITIAL COATING AND SOLIDIFYING SAID COMPOSITE COATING WHEREBY THE COMPOSITE CASTING FORMS A CURRENT-SUPPLY TERMINAL MEANS OF THE HEATER ELEMENT.
Claim 4
Independent Claim
84 words
THE METHOD OF PRODUCING AN ELECTRIC RESITANCE HEATER ELEMENT WHICH COMPRISES FORMING INDENTATIONS IN THE ENDS OF A SILICATE HEATING ROD, FLAME SPRAYING A FIRST COATING OF ALUMINUM TO A THICKNESS OF ABOUT 0.1 TO ABOUT 0.5 MM. THICKNESS ON SAID ENDS AND THEN CASTING A THICKER SECOND COATING OF ALUMINUM ON SAID ENDS WHILE REMOVING THE OXIDE LAYER THAT HAD FORMED ON THE INITIAL COATING AND SOLIDIFYING SAID COMPOSITE COATING WHEREBY THE COMPOSITE CASTING FORMS A CURRENT-SUPPLY TERMINAL MEANS OF THE HEATER ELEMENT.
References Cited (Backward Citations)
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US2475379A
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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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |