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:
Apr. 21, 1992
Filed:
Mar. 07, 1990
Minoru Yamada, Aichi, JP;
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
An apparatus for controlling a machine tool including a tool holder spindle for performing a machining operation, a motor for rotating the spindle, an operator's control panel which has a data display with a plurality of display digits, and a plurality of operator's control switches, and a control device comprising a motor controller for controlling the spindle motor, according to control data entered through the operator's control switches. The control device includes a special-operation detector for detecting one of at least one special operation of at least one of the control switches, a mode selector for selecting one of at least one special operation mode of the control device corresponding to the detected one of the at least one special operation, and a special data setting controller for placing the data display in the selected one special operation mode and permitting the control device to enter special presetting data through the control switches.