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, 1987
Filed:
Feb. 21, 1986
Haruo Ohmura, Aichi, JP;
Yuji Ohba, Kariya, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
In a numerically controlled grinding machine of the type which is adapted to perform a machining operation on the basis of the feed amounts specified as relative amounts in various modes of different grinding wheel feed speeds, a feed controller comprising in combination: a contact detector adapted to produce a contact signal upon detection of contact of the grinding wheel with a workpiece; a non-grinding feed remainder detector including a counter for counting feed control distribution pulses to detect the remainder of a preset feed amount at least in a non-grinding mode from a variation in the count value of the counter during a period between a time point of starting the non-grinding mode and a time point of receiving the contact signal from the contact detector; and a feed mode changing means adapted to change the feed mode of the grinding wheel in such a manner as to effect the remainder of the non-grinding feed at a speed lower than that of the non-grinding mode in response to the contact signal from the contact detector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile