The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1992
Filed:
Nov. 12, 1991
Shinko Pantec Co., Ltd., , JP;
Abstract
An improved method for repairing a damaged portion of a glass layer of glass-lined equipment. In the method, a metallic fiber-containing sheet made of a metallic fiber-containing web, a metallic woven fabric sheet or a metallic nonwoven fabric sheet is disposed on the metal substrate of the damaged portion exposed by grinding, and the metallic sheet is welded partially to the metal substrate underlying the glass layer by a resistance or spot weld. After solidification of the repairing agent, e.g., of a sol-gel solution containing a metallic alkoxide which has been applied onto the partially welded sheet(s) and the sol-gel solution impregnated therein, the reapiring glass layer is formed integrally together with the sheet(s) by heating the damaged portion at a temperature from about 300.degree. to about 350.degree. to avoid the occurence of cracks on the glass layer surrounding the damaged portion. A series of the above-mentioned glass forming procedures are repeated until a satisfactory thickness of the reapairing glass layer is obtained.