Vibration absorbing material for handles of sporting equipment
AssigneePendulum Corp.
InventorsThomas Falone, Richard S. Wyerman, Carmen Dimario
Life of this patent
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Abstract
Various tools and devices, such as golf clubs, are improved by the incorporation of a vibration absorbing material having a hardness of less than 40 durometer reading, a coefficient of friction of at least 0.6 and a dampening vibration greater than 55%. When used for a golf club the material can be incorporated in the handle part of the shaft to improve the grip, can be inserted down the inside of the shaft to increase vibration absorption and a more solid contact or can be incorporated in the club head.
Claims11
In a hand held article of athletic equipment having an elongated handle with a gripping area having a gripping surface to be gripped by the user in a squeezing action, the improvement being in that said handle includes an inner core, a flexible vibration absorbing material around said inner core, said vibration absorbing material having an outer surface which comprises said gripping surface, said outer surface of said vibration absorbing material being non-porous and tacky, said vibration absorbing material having a hardness of less than 40 durometer reading, said vibration absorbing material having a coefficient of friction of at least 0.6, said vibration absorbing material having a dampening of vibration greater than 55%, an inner support structure around said inner core, said inner support structure having a plurality of spaced rigid projections extending longitudinally the length of said gripping area to provide lateral and longitudinal rigidity during the use of said article, said inner support structure being located inwardly of said outer surface of said vibration absorbing material, said vibration absorbing material and said inner support structure being secured together by said projections extending into said vibration absorbing material, said vibration absorbing material being distinct and separable from said inner support structure, and said vibration absorbing material completely covering said projections to render said outer surface of said vibration absorbing material as the sole user contacting and gripping surface in said gripping area during use of said article.
Dependencies are inferred from the claim text.