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:
Nov. 07, 2006
Filed:
Jan. 26, 2005
Hirohiko Arai, Tsukuba, JP;
Hirohiko Arai, Tsukuba, JP;
Abstract
A spinning method which makes it possible to control the pressing force of a roller tool with satisfactorily high responsiveness and have the roller tool press work following the contour of a forming die even if the die may have its radial length vary at a high speed relative to the angle of its rotation when making a product which is not circular in its cross section normal to the axis of rotation of the die, and an apparatus therefor. The roller tool is driven by at least two mutually crossing linear motors and the thrust to be generated by each linear motor is adjusted to control the feeding displacement of the roller tool and the pressing force of the roller tool against a piece of work.