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:
Dec. 15, 1981
Filed:
Jul. 16, 1979
Applicant:
Inventor:
Derek Obersby, Little Haywood, GB;
Assignee:
Unicorn Industries Limited, Windsor, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
264 25 ; 51298 ; 51307 ; 51308 ; 264 22 ; 264 26 ;
Abstract
In the manufacture of grinding wheels or other grinding products of either the vitrified or organic type, the heat treatment for drying and/or firing or curing respectively is provided by microwave energy so that the heating is progressive from the inside of the wheel to the outside and the process is greatly speeded up. It is also possible according to the invention to include a steel or other metallic reinforcing ring in a grinding wheel without it being damaged or destroyed during firing.