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:
Mar. 04, 2003
Filed:
Sep. 17, 2001
Ming-Je Li, Zhong-he, TW;
Tung-Gan Cheng, Hsin-chu, TW;
Wen-Lung Ho, Hsin-chu, TW;
Tung-Lung Lai, Hsin-chu, TW;
Ting-Han Ou, Gao-xiong, TW;
Yen-Chi Chen, Yi-Ian, TW;
Jan-Shen Liou, Gao-xiong, TW;
Taiwan Semiconductor Manufacturing Co., Ltd, Hsin Chu, TW;
Abstract
A hand tool for rolling an O-ring under a downward pressure into a slot opening is described. The hand tool is constructed by a tool body that has an arcuate top surface adapted for gripping by a human hand and a planar bottom surface. The planar bottom surface of the tool body is provided with a cavity adapted for receiving a pair of rotatable balls mounted juxtaposed to each other. The pair of rotatable balls are mounted on a shaft through a center aperture of the balls in the cavity in such a way that only less than half of the spherical surface of the balls is protruding beyond the planar bottom surface of the tool body.