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:
Jun. 08, 2004
Filed:
Nov. 18, 2002
Applicant:
Inventors:
Yun Chi Chang, Taichung 404, TW;
Kang Ho Choi, An-Yang City, Kyung-Ki Do, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63G 1/306 ;
U.S. Cl.
CPC ...
A63G 1/306 ;
Abstract
A rocker device includes a base having a rocker surface for rocking on a supporting surface, and a wheel device attached to the base and partially extendible out of the bottom of the base to selectively engage with the supporting surface. The base is rockable relative to the supporting surface when the wheel device is disengaged from the supporting surface, and the base is movable relative to the supporting surface when the wheel device is engaged with the supporting surface, such that the rocker device may be moved periodically on the supporting surface.