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:
Mar. 19, 1991
Filed:
Jun. 15, 1989
Applicant:
Inventors:
Akira Hirose, Kounan, JP;
Toshiyuki Takei, Nagoya, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
29 3 / ; 29DI / ; 409134 ; 74612 ; 1983461 ; 414222 ;
Abstract
A cover unit for covering an external face of a machine tool. The cover unit is formed with small opening for allowing a workpiece to pass therethrough. The cover unit is also formed with a large opening for facilitating maintenance to the machine tool. The small opening is selectively closed by a first closure means to avoid scattering of the cutting chips and machining liquid toward outside during machining to the workpiece. The large opening is selectively closed by a second closure means during machining to the workpiece.