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:
Mar. 17, 1992
Filed:
Sep. 25, 1990
Applicant:
Inventors:
Assignee:
Satake Engineering Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24D / ;
U.S. Cl.
CPC ...
51296 ; 51307 ; 51308 ; 51309 ;
Abstract
A method of producing an abrasive roll comprises the steps of forming a mixture of substances such as abrasive grains, a bond, a temporary caking agent and a pore forming agent, molding the mixture into a body having a predetermined shape, and drying and then burning the body. The pore forming agent is constituted from a rice hull powder sieved to have a predetermined particle size, thereby enabling to produce an abrasive roll of high porosity which has pores having substantially ball-like shape and substantially uniform size and includes a bond having portions of high SiO.sub.2 concentration each adjacent to and surrounding one of the pores.