Invention Grant
- Patent Title: Tennis racket
- Patent Title (中): 网球拍
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Application No.: US14209767Application Date: 2014-03-13
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Publication No.: US08968125B2Publication Date: 2015-03-03
- Inventor: Ralf Schwenger
- Applicant: Head Technology GmbH
- Applicant Address: AT Kennelbach
- Assignee: Head Technology GmbH
- Current Assignee: Head Technology GmbH
- Current Assignee Address: AT Kennelbach
- Agency: Bookoff McAndrews, PLLC
- Main IPC: A63B49/02
- IPC: A63B49/02 ; A63B49/10 ; A63B49/00 ; A63B49/04

Abstract:
A tennis racket may include a handle with a butt end, and a head configured to support strings. The tennis racket may also include a throat connecting the handle and the head, wherein the racket may have a Power Maneuverability Ratio from about 4500 to about 7915, the Power Maneuverability Ratio governed by the equation: PMR= ( S W ) ( R W ) ( P U W ) , where SW=the moment of inertia in kilogram-centimeters squared of the tennis racket about a swingweight axis that is perpendicular to a longitudinal axis of the tennis racket, parallel to a tennis ball hitting surface contained by the head, and intersecting a point on the handle that is four inches from the butt end along the longitudinal axis, R W = S W - ( W t 1000 ) ( b 10 - 10.16 ) 2 , Wt=the weight of the racket in grams, b=the distance in millimeters between a center of gravity of the racket to the butt end.
Public/Granted literature
- US20140274495A1 TENNIS RACKET Public/Granted day:2014-09-18
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