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:
Aug. 24, 1993
Filed:
Jul. 19, 1991
Applicant:
Inventor:
Mikio Nakashima, Owariasahi, JP;
Assignee:
Kabushiki Kaisha Nakashima, Yokohama, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
2989532 ; 298953 ; 492 53 ;
Abstract
A roll member of metal body is coated with a smooth glass layer sprayed thereon. The invention is also directed to a method for manufacturing a roll member of metal body having a glass surface, including preheating the surface of the metal body which is subject to a blast treatment to 200.degree..about.600.degree. C. with or without a stainless undercoat layer on the blast-treatment surface, spraying a glass material onto the surface of the metal body, and grinding the sprayed glass surface to form a smooth surface.