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:
Jun. 01, 1999
Filed:
Jan. 27, 1998
Osamu Araki, Kikuchi-gun, JP;
Ohashi & Associates, Tokyo, JP;
Abstract
The present invention relates to the multi-splindle machining apparatus which carries out machining of the discontinuous surfaces of a plurality of workpieces simultaneously, and in order to restrain the amplification of chattering, oscillation or the like so as to prevent the machining precision from deterioration, the diameters of plural drive pulleys 7a, 7b, 7c connected to a driving motor are finely varied to change at random the rotational speeds which are transmitted from the drive pulleys 7a, 7b, 7c through belts 10 to driven pulleys 8 provided on each machining spindle 3a, thus changing irregularly the timings at which cutting edges 9 of the machining spindles 3a pass the discontinuities such as joint portions s.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile