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:
May. 05, 1998
Filed:
Sep. 12, 1996
Applicant:
Inventors:
Koichi Harada, Musashimurayama, JP;
Minoru Torihata, Musashimurayama, JP;
Takayuki Iiyama, Musashimurayama, JP;
Assignee:
Kabushiki Kaisha Shinkawa, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
269172 ; 269221 ; 269224 ; 269237 ; 269216 ; 269329 ;
Abstract
A clamping device used in, for instance, a bonding machine, using a piezo-electric element for opening and closing a pair of clamping claws for holding, for instance, bonding wires in between. The clamping device includes a pressure adjustment screw which applies a preparatory pressure to the piezo-electric element via a contact plate, and the contact plate is connected, via flexible sections which are capable of expansion and contraction, to a screw attachment with which the pressure adjustment screw is screw-engaged.