US3842319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas igniter
Assignee: White Consolidated Industries Inc
•
Filing: 1972-09-18
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Granted: 1974-10-15
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Expires: 1992-09-18
Abstract
Abstract A solid-state silicon carbide gas igniter to which electrical leads are bonded for energization by flame or plasma spraying as used for hardfacing alloys, metals and ceramics, the leads being received in slots in the igniter terminal parts and the latter, with the thus inserted leads, encased or coated by the spray bonding material. In applying such material, the centerline of the spray is directed at an angle of approximately 45* toward the terminal end of the igniter while the latter is preferably relatively rotated to provide the material coating fully about the terminal parts of the igniter and the inserted leads.
Inventors
- 👤 R Perl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:45
CPC Classifications
F; F23; F23Q; F23Q7/00; F23Q7/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
The improvement in high temperature gas igniters having discrete spaced-apart terminal parts for connection to a source of electric energy, which comprises a plurality of electrical leads positioned in conductive engagement with respective ones of said terminal parts, said electrical leads extending from said terminal parts for such connection of the igniter and said electrical leads being of low electrical resistance relative to that of the igniter, and respective metallized coatings having a coefficient of expansion approximating that of the terminal parts about the respective leads and terminal parts in such conductive engagement bonding the former to the latter respectively, while maintaining the spaced and hence electrically insulated relation thereof.
Claim 2
Dependent Claim
110 words
The improvement in high temperature gas igniters having discrete spaced-apart terminal parts for connection to a source of electric energy, which comprises a plurality of electrical leads positioned in conductive engagement with respective ones of said terminal parts, said electrical leads extending from said terminal parts for such connection of the igniter and said electrical leads being of low electrical resistance relative to that of the igniter, and respective metallized coatings having a coefficient of expansion approximating that of the terminal parts about the respective leads and terminal parts in such conductive engagement bonding the former to the latter respectively, while maintaining the spaced and hence electrically insulated relation thereof.
Claim 3
Dependent Claim
55 words
The improved gas igniter set forth in claim 1, wherein the metallized coatings extend substantially completely over at least the exterior and the interior surfaces of the interengaged igniter terminal parts and over the electrical leads to further enhance the bonding of the leads to the igniter in high temperature exposure of such connections thereof.
Claim 4
Dependent Claim
32 words
The improved gas igniter set forth in claim 2, wherein the metallized coatings fully continuously encase the terminal parts, including the side edges thereof, and the leads in engagement with the same.
Claim 5
Dependent Claim
27 words
The improved gas igniter set forth in claim 2, wherein the igniter is in coil form and made of a material having the properties of silicon carbide.
Claim 6
Dependent Claim
176 words
The improvement in high temperature gas igniters having discrete spaced-apart terminal parts for connection to a source of electric energy, which comprises electrical leads in conductive engagement with and extending from said terminal parts for such connection of the igniter, and metallized coatings about the leads and parts in such engagement bonding the former to the latter, respectively, while maintaining the spaced and hence electrically insulated relation thereof, the metallized coatings extending substantially completely over at least the exterior and the interior surfaces of the interengaged igniter terminal parts and over the electrical leads to further enhance the bonding of the leads to the igniter in high temperature exposure of such connections thereof, the igniter being in coil form and made of a material having the properties of silicon carbide, and wherein the igniter terminal parts are arcuate, at the same end thereof, the electrical leads being received in longitudinal slots formed therein, and the metallized coatings extending over the exterior and interior surfaces of said parts, thereby to enclose the leads within the terminal parts.
Claim 7
Dependent Claim
176 words
The improvement in high temperature gas igniters having discrete spaced-apart terminal parts for connection to a source of electric energy, which comprises electrical leads in conductive engagement with and extending from said terminal parts for such connection of the igniter, and metallized coatings about the leads and parts in such engagement bonding the former to the latter, respectively, while maintaining the spaced and hence electrically insulated relation thereof, the metallized coatings extending substantially completely over at least the exterior and the interior surfaces of the interengaged igniter terminal parts and over the electrical leads to further enhance the bonding of the leads to the igniter in high temperature exposure of such connections thereof, the igniter being in coil form and made of a material having the properties of silicon carbide, and wherein the igniter terminal parts are arcuate, at the same end thereof, the electrical leads being received in longitudinal slots formed therein, and the metallized coatings extending over the exterior and interior surfaces of said parts, thereby to enclose the leads within the terminal parts.
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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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |