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. 31, 2015
Filed:
Aug. 04, 2011
Applicant:
Gan Wei, Nanjing, CN;
Inventor:
Gan Wei, Nanjing, CN;
Assignee:
Chervon (HK) Limited, Hong Kong, HK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25D 5/00 (2006.01); B25F 5/02 (2006.01); B25D 11/06 (2006.01); B25D 17/26 (2006.01);
U.S. Cl.
CPC ...
B25F 5/02 (2013.01); B25D 11/068 (2013.01); B25D 17/26 (2013.01); B25D 2211/003 (2013.01); B25D 2211/006 (2013.01); B25D 2250/005 (2013.01); B25D 2250/365 (2013.01);
Abstract
An electric tool includes a gripping portion, a working portion rotatably connected to the gripping portion about an axis, an output shaft moving in a reciprocating manner and accommodated in the working portion, and a gear box accommodated in the gripping portion for driving the output shaft. The gear box has an opening so that the output shaft is moveable from one end to the other end of the opening when the working portion is rotated relative to the gripping portion about the axis. A leakage-preventing device, such as a bushing, is arranged at the opening so that the lubricating grease can be avoided from leaking.