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:
Dec. 13, 2011
Filed:
Apr. 12, 2010
William D. Severa, Darien, IL (US);
Ronald R. Rocchi, Naperville, IL (US);
John B. Lyons, Wilmette, IL (US);
Robert T. Kapheim, Elmhurst, IL (US);
Erik B. Van Der Pols, Taichung Hsien, TW;
William D. Severa, Darien, IL (US);
Ronald R. Rocchi, Naperville, IL (US);
John B. Lyons, Wilmette, IL (US);
Robert T. Kapheim, Elmhurst, IL (US);
Erik B. van der Pols, Taichung Hsien, TW;
Wilson Sporting Goods Co., Chicago, IL (US);
Abstract
A stringing machine includes a base and an adjustable stringing platform coupled to the base. The stringing platform includes a turntable rotatable about a first axis, and a first releasable resistance assembly coupled to the turntable. The first releasable resistance assembly is selectable between an engaged operating mode in which the releasable resistance assembly resists rotation of the turntable about the first axis, and a disengaged operating mode in which the releasable resistance assembly does not resist rotation of the turntable about the first axis. The releasable resistance assembly includes a magnetorheological fluid for resisting rotation of the turntable about the first axis when in the engaged operating mode.