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. 02, 1995
Filed:
Mar. 30, 1993
Masayuki Katahira, Gunma, JP;
NSK Ltd., Tokyo, JP;
Abstract
A locating table apparatus according to the present invention is provided with a housing, a base member fixed in the housing, a table mounted so as to freely move in a longitudinal direction, driving members located on the base member for supporting and driving the table, and a plurality of electrostatic dust absorbing members arranged at predetermined positions in the housing via respective electrical insulative members, wherein the electrostatic dust absorbing members provide a parallel plate-shaped condenser. Further, the locating table apparatus may provide a dust counter for monitoring the dust density at predetermined positions outside the housing, a device for operating the electrostatic dust absorbing members when the monitored dust density exceeds a warning level, and a device for forcing the motor to stop in response to a level of a signal detected by the dust counter.