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.
Patent No.:
Date of Patent:
Jan. 17, 1989
Filed:
Jan. 16, 1987
Richard Janes, Belchertown, MA (US);
Spalding & Evenflo Companies, Inc., Tampa, FL (US);
Abstract
A midsize tennis racket is disclosed which utilizes two arcuate bridges, inverted with respect to the arc of the head of the racket, and includes grommets at opposite ends of the head in order to shorten the length of the center main string so as to provide more uniform power response in the central hitting area. A selected number of the center main strings are crisscrossed between the arcuate bridges and their support locations on the frame. The construction provides the playability of a small headed racket while maintaining the stability of a large headed racket. Further embodiments are disclosed which effectively shorten the length of the main strings by effectively creating two arcuate bridges. In one embodiment, the arcuate bridges are formed by elongated projections which have boreholes at their distal ends. In a further embodiment, inelastic loops are used to form the arcuate bridges. In a still further embodiment, U-shaped members are used with arms extending through the head, with the distal arms of the head being secured to the outer circumferential surface of the head.