A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
26/1, 273/163
A63B 49/02 (2006.01) A63B 51/00 (2006.01)
Patent
CA 2023934
ABSTRACT OF THE DISCLOSURE An improved tennis racket with a frame fabricated of graphite fibers in an epoxy resin matrix formed in a tubular configuration, the frame including a handle at one end; a head at the other end; beams therebetween coupling the head and handle; and a yoke cohered to the lower ends of the head to thereby generally form an ellipse, the head having a major axis coextensive with the axis of the frame and being of a first dimension when measured at the widest point of the interior edge and having a minor axis transverse with respect thereto measured at the widest point of the interior edge of the frame, the minor axis to major axis aspect ratio being about 0.9:1, the beams being formed linearly and diverging from the central axis equally and oppositely at about 30 degrees for supporting the head, at their upper ends, at regions widely spaced from the axis, the area within the head being between about 95 and 105 square inches. Also disclosed is a frame for such tennis racket. Also disclosed is a method of stringing such frame with the horizontal strings at a higher pull tension than the vertical strings.
Janes Richard
Macrae & Co.
Spalding & Evenflo Companies Inc.
LandOfFree
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