Invention Grant
- Patent Title: Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
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Application No.: US17171297Application Date: 2021-02-09
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Publication No.: US11541282B2Publication Date: 2023-01-03
- Inventor: William D. Severa , Dale J. Zwack , Robert T. Kapheim , Eloisa M. Compostizo
- Applicant: WILSON SPORTING GOODS CO.
- Applicant Address: US IL Chicago
- Assignee: WILSON SPORTING GOODS CO.
- Current Assignee: WILSON SPORTING GOODS CO.
- Current Assignee Address: US IL Chicago
- Agent Terence P. O'Brien
- Main IPC: A63B49/02
- IPC: A63B49/02 ; A63B49/10 ; A63B49/028 ; A63B60/42 ; G01N3/20 ; G01N3/26 ; G01N3/14 ; G01N3/22 ; G01N3/04 ; G01N3/34 ; A63B1/00 ; A63B102/02

Abstract:
A racquet including a frame including a head portion, a handle portion, and a throat portion. The head portion is a tubular structure including inner and outer peripheral walls, each having inner and outer surfaces. The head portion of the racquet being formed of a fiber composite material. The fiber composite material includes a plurality of ply arrangements. Each includes a pair of plies defining first and second angles with respect to a composite axis. A section of the outer peripheral wall from the inner surface to the outer surface includes at least three ply arrangements overlaying each other, and the first and second angles of at least two of the at least three ply arrangements being at least 35 degrees. When the racquet is tested under a racquet torsional stability test, the racquet has an angular deflection of less than 5.5 degrees about a longitudinal axis.
Public/Granted literature
- US20210162271A1 RACQUET CONFIGURED WITH INCREASED FLEXIBILITY IN MULTIPLE DIRECTIONS WITH RESPECT TO A LONGITUDINAL AXIS Public/Granted day:2021-06-03
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