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. 18, 1990
Filed:
Jun. 21, 1989
Applicant:
Inventors:
Masahito Umetsu, Atsugi, JP;
Morikatsu Matsuda, Isehara, JP;
Assignees:
Amada Company, Limited, both of, JP;
Amada Wasino Company, Limited, both of, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H / ;
U.S. Cl.
CPC ...
219 6912 ; 219 6917 ;
Abstract
A wire cutting electric discharge machine that has wire supply rollers 17A and 17B feed the wire at a first speed and a wire feed out section that conveys the wire to a scrap box at a second speed that is greater than the first speed. Detection of the wire successfully reaching a wire guide section on the wire take out side is accomplished by detecting the speed of movement of a wire supply roller to see when it exceeds a preset fixed speed of movement.