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. 04, 2001
Filed:
Feb. 17, 1999
Makoto Murata, Yokohama, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
There is provided a plastic working machine for plastically working a tube by employing tube holding and spinning means for holding and spinning the plastically workable tube around the axis of the tube and first and second plastic working tools which face to each other so as to pinch the tube in the radial direction of the tube and which are movable along the radial and axial directions of the tube while being pressed against the tube. The plastic working machine executes a step of plastically working the tube by the first and second plastic working tools by continuously spinning the tube around the axis thereof and by applying compressive load or tensile load along the axial direction of the tube to the tube.