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:
Aug. 22, 1989
Filed:
Feb. 12, 1988
Tsutomu Yamada, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
Dynamic balancing of cylindrical rotors composed of ceramic materials is carried out accurately, by means of a device (10) which includes a support shaft (15) to be held by work holders (13, 14) of a grinding machine, and a pair of cylindrical clamp members (20, 21) engageable with the periphery of an axial bore (12) in the sintered rotor body (11) for clamping the rotor body therebetween. The clamp members (20, 21) are axially passed by the support shaft (15) and are provided with adjusting bolts (22a, 22b, 22c) for radial adjustment of the clamp members (20, 21) with respect to the support shaft (15). The rotor body (11) can thus be radially positioned with a desired eccentricity to determine the necessary amount of material to be removed therefrom for correcting the dynamic unbalance.