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:
Dec. 27, 1994
Filed:
Jan. 10, 1994
Applicant:
Inventors:
Kihachiro Matsumoto, Katsuta, JP;
Akira Onose, Katsuta, JP;
Assignee:
Hitachi Koki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27C / ;
U.S. Cl.
CPC ...
1441 / ; 1441 / ; 310 63 ; 310 74 ; 318161 ; 409182 ;
Abstract
A compact, and lightweight portable electric router providing sufficient cutting efficiency. The router includes rotary components such as an armature of a drive motor, a motor shaft, a cooling fan connected to the motor shaft and a chuck for fixing thereto a cutting bit. An outer peripheral portion of the cooling fan is provided with a weight or a flywheel member to increase resultant inertial moment of the rotary component, to thus increase rotating power of the cutting bit.