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. 21, 2012
Filed:
Jan. 23, 2009
Chun-che Wu, Taipei, TW;
Yi-shun Wang, Taipei, TW;
Chun-Che Wu, Taipei, TW;
Yi-Shun Wang, Taipei, TW;
Primax Electronics Ltd., Taipei, TW;
Abstract
A wheel mouse includes a mouse case, a base, a circuit board, an encoder, a fixing element, a wheel, a switch element and a spring. The circuit board is disposed on the base. The fixing element includes a ring-shaped part and a hollow post. The encoder is accommodated within the ring-shaped part. The wheel includes a rotating shaft and a receptacle. The ring-shaped part of the fixing element is accommodated in the receptacle. A first end of the rotating shaft is inserted into the encoder perforation. The switch element is mounted on the circuit board and under a second end of the rotating shaft. The spring is inserted into the hollow post for offering an elastic force on the fixing element. Since the encoder is accommodated within the wheel, the overall volume of the wheel mouse is reduced and the loading on the wheel is reduced.