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. 24, 1996
Filed:
Jun. 17, 1994
Takeshi Toyoshima, Ibaraki-ken, JP;
Yo Kawakami, Mito, JP;
Hiroyasu Ishikawa, Katsuta, JP;
Takao Abe, Hitachi, JP;
Satsuo Sato, Katsuta, JP;
Nobuhiro Noto, Katsuta, JP;
Tadahiro Kaneko, Katsuta, JP;
Takayoshi Kaneta, Ibaraki-ken, JP;
Juurou Kobayahsi, Katsuta, JP;
Osamu Kawanobe, Katsuta, JP;
Hitachi Koki Company Limited, Tokyo, JP;
Abstract
A grinder has a grinding member. The grinder includes a rotatable spindle having an engagement portion. A first flange engages the engagement portion of the spindle. The first flange and the engagement portion of the spindle define a given play therebetween in a direction of rotation. The grinding member is held between the first flange and a second flange. A lubricant solid material is provided between the first flange and the engagement portion of the spindle.