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:
Jun. 18, 1991
Filed:
Dec. 06, 1989
Applicant:
Inventors:
Katsuhiko Kaneko, Kumamoto, JP;
Minoru Nishida, Kumamoto, JP;
Assignees:
Nishimatsu Co., Ltd., both of, JP;
Tokin Corporation, both of, JP;
Primary Examiner:
Int. Cl.
CPC ...
B02C / ; E21C / ;
U.S. Cl.
CPC ...
241301 ; 125 2301 ; 299 20 ;
Abstract
In construction of a stonework crusher utilizing thermal deformation of shape memory alloy, heating means is coupled to one or more insert heads made of shape memory alloy without leaving any space there between so that thermal deformation of the insert heads should pose no substantial influence upon heat transmission from the heating means. In particular when several crushers are used in combination, uniform heat transmission at different crushers allows concerted generation of crush force by the combined crushers for effective and efficient crushing of stoneworks.