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:
Sep. 21, 1993
Filed:
May. 30, 1991
NTN Corporation, Osaka, JP;
Abstract
A controller for a cutting machine has a machining power extracting unit for extracting machining power related to machining from the consumed power of the cutting machine, a detection range setter for setting a detection range for the machining power thus extracted, an integrator for integrating output values of the machining power extracting unit within the detection range thus set, a maximum value detector for detecting the maximum value of the output values of the machining power extracting unit within the detection range, and a judging unit for comparing an input signal with a variable comparative reference value and producing a control signal if the input signal exceeds the comparative reference value. The judging unit has an input which is selectively connectable to the machining power extracting unit, the integrator and the maximum value detector.