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. 29, 2005
Filed:
Aug. 19, 2003
Applicant:
Hsuan-lung Wu, Feng-Shu Li, Nan-Tun Dist., Taichung City, TW;
Inventor:
Hsuan-Lung Wu, Feng-Shu Li, Nan-Tun Dist., Taichung City, TW;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B031/30 ;
U.S. Cl.
CPC ...
Abstract
A chuck assembly includes a housing formed with an hydraulic fluid inlet, a sleeve mounted in the housing and formed with an annular groove, a shaft mounted rotatably in the sleeve and formed with a first fluid passage, a chuck unit mounted in the shaft, a piston subdividing a chamber between the chuck unit and the shaft into first and second compartments, and an annular elastic sealing member disposed in the annular groove and formed with a second fluid passage for passage of a hydraulic fluid from a supply through the hydraulic fluid inlet and the first fluid passage to the first compartment.