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. 09, 1983
Filed:
Dec. 22, 1981
Hiroaki Tanaka, Hamamatsu, JP;
Enshu Limited, , JP;
Abstract
On a work machine such as a milling machine having a main spindle for chucking a tool and a mobile transfer arm assembly for replacing the tool under control by a numerical control device, a chucking repeat controller including a chucking repeat fixer, which is given in the form of either a counter or a time-limit timer, automatically repeats chucking operation by the main spindle upon detection of any failure in chucking operation, and intercepts all further operation of the main spindle and the transfer arm assembly for maintenance purposes when failure in the chucking operation has been repeated in succession for prescribed number of times, preferably with concurrent generation of some visible and/or audible alarm for operators' attention.