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:
Aug. 16, 2016
Filed:
Jul. 13, 2010
Kwok Kay Lee, Hong Kong, CN;
BO Gao, Hong Kong, CN;
Kwok Kay Lee, Hong Kong, CN;
Bo Gao, Hong Kong, CN;
MAIN POWER ELECTRICAL FACTORY LTD., Kwun Tong, Kowloon, HK;
Abstract
An electric appliance has first and second rotational output spindles located within a housing. The first and second spindles have respective first and second couplings for attachment of first and second work tools to the first and second spindles, respectively. The second rotational output spindle is concentric with the first rotational output spindle such that connection of one of the first and second work tools to the corresponding spindle excludes connection of the other of the first and second work tools to the corresponding spindle. The first rotational output spindle has a first rotational speed that is different from a second rotational speed of the second output spindle.