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:
Aug. 31, 1999

Filed:

Sep. 23, 1997
Applicant:
Inventors:

Stephen J Davis, Washington Crossing, PA (US);

Joseph J Wolverton, Lawrenceville, NJ (US);

William Harvie, III, Yardley, PA (US);

Brian J Blonski, Yardley, PA (US);

Assignee:

Prince Sports Group, Inc., Bordentown, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
473539 ; 473522 ;
Abstract

A sports racquet includes grommet members anchoring the strings in at least the central regions of the string bed which include grommet pegs which have grommet holes that, in cross-section, are elongated in a direction perpendicular to the string bed, and preferably include notches at their distal end. The slotted grommets and notches allow the strings to deflect, in a direction perpendicular to the string bed, upon ball impact. The strings are anchored only outside of the frame proper, and their effective string length is thus substantially increased. Preferably, the grommet members include a concave lip to act as a string guide, adjacent the grommet hole entrance to prevent string movement as it enters the slot. Preferably, the sidewalls of the grommet holes are spaced slightly farther apart than the width of the string so that the string can deflect freely upon ball impact with the string bed. The string hugs one of sidewalls, however, so that vibrations are damped after the ball has left the string bed.


Find Patent Forward Citations

Loading…