US3624344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment of nonmetallic articles to metallic substrates
Assignee: Stemcor Corp
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Filing: 1970-05-01
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Granted: 1971-11-30
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Expires: 1990-05-01
Abstract
Abstract Ceramic articles such as segments in the form of blocks or plates are secured to an underlying metallic surface by means of metal retainers which are inserted in holes or openings extending through the ceramic material. The retainers have frustoconical outer surfaces which engage corresponding surfaces on the ceramic segments. The retainers are securely held to the metal surface by welding. The welding is accomplished by inserting a welding rod through a passage provided through the center of the metal retainer and forming a weld bead that extends from the metallic surface into the passage and beyond an internal flange located adjacent the inner end of said passage.
Inventors
- 👤 Louis G Kutzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:44
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/50; B01F35/511; B65; B65G; B65G17/00; B65G17/30; B65G17/32; B65G17/34; B65G17/36; F; F16; F16B; F16B5/00; F16B5/08; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
178 words
In combination, an underlying metal surface; a nonmetallic article superimposed on said underlying surface, said article having a face adjacent said underlying surface and a face opposite thereto and having a socket portion extending from one of said faces to the other, the periphery of said socket portion being arced in cross section and at least a portion thereof being of decreasing radius as it approaches the first-mentioned face of said article; a metallic retainer having a frustoconical outer surface with a slope approximately the same as that of said socket portion, within and closely fitting the portion of said socket portion having the decreasing radius, said retainer having a passage therethrough coaxial with said frustoconical surface and an annular, inwardly directed flange projecting into said passage adjacent the smaller end of said retainer; and a weld bead securing together said underlying surface and said retainer and extending into said passage beyond said flange, whereby said retainer is held close to but spaced from said underlying surface and said nonmetallic article is firmly retained on said underlying surface.
Claim 2
Dependent Claim
178 words
In combination, an underlying metal surface; a nonmetallic article superimposed on said underlying surface, said article having a face adjacent said underlying surface and a face opposite thereto and having a socket portion extending from one of said faces to the other, the periphery of said socket portion being arced in cross section and at least a portion thereof being of decreasing radius as it approaches the first-mentioned face of said article; a metallic retainer having a frustoconical outer surface with a slope approximately the same as that of said socket portion, within and closely fitting the portion of said socket portion having the decreasing radius, said retainer having a passage therethrough coaxial with said frustoconical surface and an annular, inwardly directed flange projecting into said passage adjacent the smaller end of said retainer; and a weld bead securing together said underlying surface and said retainer and extending into said passage beyond said flange, whereby said retainer is held close to but spaced from said underlying surface and said nonmetallic article is firmly retained on said underlying surface.
Claim 3
Dependent Claim
13 words
The combination set forth in claim 2 wherein the nonmetallic article is ceramic.
Claim 4
Dependent Claim
21 words
The combination set forth in claim 2 wherein the retainer is shorter in length than the thickness of said ceramic article.
Claim 5
Dependent Claim
23 words
The combination set forth in claim 3 wherein a cover for said retainer is provided in the upper portion of said socket portion.
Claim 6
Dependent Claim
18 words
The combination set forth in claim 4 wherein said cover is the same material as said ceramic article.
Claim 7
Dependent Claim
36 words
The combination as set forth in claim 2 wherein said retainer is fitted into a plurality of adjacent socket portions each said portion being formed in a separate one of a plurality of contiguous ceramic articles.
Claim 8
Independent Claim
156 words
A method of installing a nonmetallic article on an underlying metallic surface, said article having a face adjacent said underlying surface and a face opposite thereto and having a socket portion extending from one of said sides to the other, the periphery of said socket portion being arced in cross section and at least a portion thereof being of decreasing radius as it approaches the first-mentioned face of said article, which comprises fitting a metallic retainer in said socket portion of decreasing radius, said retainer having a frustoconical outer surface with a slope approximately the same as that of said socket portion and having a passage therethrough coaxial with said frustoconical surface and an annular, inwardly directed flange projecting into said passage adjacent the smaller end of said retainer, inserting a welding rod through said passage to said underlying surface, and depositing a weld bead on said underlying surface and into said passage above said flange.
Claim 9
Independent Claim
156 words
A method of installing a nonmetallic article on an underlying metallic surface, said article having a face adjacent said underlying surface and a face opposite thereto and having a socket portion extending from one of said sides to the other, the periphery of said socket portion being arced in cross section and at least a portion thereof being of decreasing radius as it approaches the first-mentioned face of said article, which comprises fitting a metallic retainer in said socket portion of decreasing radius, said retainer having a frustoconical outer surface with a slope approximately the same as that of said socket portion and having a passage therethrough coaxial with said frustoconical surface and an annular, inwardly directed flange projecting into said passage adjacent the smaller end of said retainer, inserting a welding rod through said passage to said underlying surface, and depositing a weld bead on said underlying surface and into said passage above said flange.
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |