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:
Jan. 13, 2009
Filed:
Apr. 03, 2008
Paul Chang, Daya Township, TW;
Tsair-rong Chen, Hemei Township, TW;
Jeen-sheen Row, Mialoi, TW;
Yuan-fu Tsai, Daya Township, TW;
Paul Chang, Daya Township, TW;
Tsair-Rong Chen, Hemei Township, TW;
Jeen-Sheen Row, Mialoi, TW;
Yuan-Fu Tsai, Daya Township, TW;
Buffalo Machinery Co., Ltd., Taichung, TW;
The Department of Electrical Engineering, National Chang-Hua University of Education, Changhua, TW;
Abstract
A cutting machine includes: a machine body; a hollow piston; a first shaft extending into the piston, co-movable with the piston relative to the machine body along a first axis, and rotatable about the first axis relative to the piston; a second shaft rotatable about a second axis and coupled to the first shaft when the first shaft is disposed at a first axial position; a rotary cutter holder rotatable about the first axis and coupled to the second shaft; a third shaft rotatable about the first axis and coupled to the first shaft when the first shaft is disposed at a second axial position; and a driving unit for driving rotation of the first shaft about the first axis.