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.

Date of Patent:
Mar. 16, 2021

Filed:

May. 06, 2020
Applicant:

Wilson Sporting Goods Co., Chicago, IL (US);

Inventors:

William D. Severa, Lombard, IL (US);

Dale J. Zwack, Bartlett, IL (US);

Robert T. Kapheim, Chicago, IL (US);

Eloisa M. Compostizo, Chicago, IL (US);

Assignee:

Wilson Sporting Goods Co., Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 49/02 (2015.01); A63B 49/028 (2015.01); A63B 60/42 (2015.01); A63B 49/10 (2015.01); G01N 3/20 (2006.01); G01N 3/26 (2006.01); G01N 3/14 (2006.01); G01N 3/22 (2006.01); G01N 3/04 (2006.01); G01N 3/34 (2006.01); A63B 1/00 (2006.01); A63B 102/02 (2015.01);
U.S. Cl.
CPC ...
A63B 49/028 (2015.10); A63B 1/00 (2013.01); A63B 49/10 (2013.01); A63B 60/42 (2015.10); G01N 3/04 (2013.01); G01N 3/14 (2013.01); G01N 3/20 (2013.01); G01N 3/22 (2013.01); G01N 3/26 (2013.01); G01N 3/34 (2013.01); A63B 2102/02 (2015.10); A63B 2209/02 (2013.01); A63B 2225/02 (2013.01); G01N 2203/0003 (2013.01); G01N 2203/0021 (2013.01); G01N 2203/0023 (2013.01); G01N 2203/0033 (2013.01); G01N 2203/0096 (2013.01);
Abstract

A racquet extends along a longitudinal axis and is capable of being tested under a racquet lateral bending test and a racquet torsional stability test. The racquet lateral bending test includes mounting the racquet in a first orientation to a first test fixture at a first longitudinal location, attaching a clamp to the racquet at a second location, operably engaging a deflection indicator to the clamp, applying a first predetermined weight to the racquet at a third location, and removing the first weight to obtain a lateral deflection measurement of the racquet with respect to the longitudinal axis. The racquet torsional stability test includes mounting the racquet to second and third test fixtures at sixth and seventh locations of the racquet, respectively, placing a third predetermined weight on an arm extending from the second test fixture, removing the third predetermined weight to obtain an angular deflection about the axis. The racquet comprises a frame including head and handle portions and a throat portion positioned between the head and handle portions. The head portion forms a hoop that defines a string bed plane. When the racquet is tested under the racquet lateral bending test, the racquet has a lateral deflection of at least 6.0 mm when measured in a direction that is parallel to the plane and perpendicular to the axis. When the racquet is tested under the racquet torsional stability test, the racquet has an angular deflection of less than 5.0 degrees about the axis.


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