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:
Feb. 21, 2006
Filed:
Sep. 10, 2003
Toshio Mikiya, Tokyo, JP;
Keisuke Shimada, Tokyo, JP;
Takashi Chiba, Tokyo, JP;
Munenori Yamaguchi, Tokyo, JP;
Kenji Ohtsuka, Tokyo, JP;
Toshio Mikiya, Tokyo, JP;
Keisuke Shimada, Tokyo, JP;
Takashi Chiba, Tokyo, JP;
Munenori Yamaguchi, Tokyo, JP;
Kenji Ohtsuka, Tokyo, JP;
Nitto Kohki Co., Ltd., Tokyo, JP;
Abstract
A rotary cutting apparatus comprises a rotary shaft assembly having an axis and adapted to hold a cutting tool coaxial with the axis and, a feed mechanism for moving the cutting tool held by the rotary shaft assembly along the axis of the rotary shaft assembly. The rotary shaft assembly comprises a proximal rotary shaft, an intermediate, a distal rotary shaft which are successively telescopically connected, and a cylindrical housing rotatably holding the distal rotary shaft and movable along the axis together with the distal rotary shaft. The feed mechanism comprises a first rack mounted on the cylindrical housing and extending in parallel with the axis of the rotary shaft assembly, a second rack securely mounted on the body in parallel with the first rack; and, a pinion positioned between and engaged with the first and second racks.