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:
Jan. 08, 1991
Filed:
Jan. 24, 1989
Applicant:
Inventors:
Akira Yoshikawa, Ohbu, JP;
Tsunezo Takeuchi, Chita, JP;
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
269 32 ; 269155 ; 269156 ; 269258 ; 269265 ; 5121 / ;
Abstract
There is disclosed a clamp device for clamping a workpiece, e.g. a ceramic shaped body having a surface curvature. Support members are mounted on the base frame to support the workpiece thereon, and are adapted to swing about predetermined rotational axes. First clamp members are mounted on a base frame and adapted to swing about predetermined rotational axes. Second clamp members are mounted on a sub-frame, which is movable relative to the base frame, and are adapted to swing about predetermined rotational axes. The second clamp members can be moved toward the first clamp members to clamp a workpiece therebetween.