Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1975-06-16
1977-07-05
Apley, Richard J.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
A63B 5100
Patent
active
040335828
ABSTRACT:
A method of stringing tennis rackets and the resultant racket therefrom in which the string is secured to the racket frame in the form of three isolated sections; a peripheral section, a working main string section and a working cross string section. Each of these sections is formed from a single length of string and is tied off onto itself so that any section can be replaced without disturbing the other two. The peripheral section is made up of three vertical strands at either side of the space within the racket frame, and three horizontal strands at the top and bottom, respectively, of this space. The working main string section is made up of vertical strands occupying the space between the two sides of the peripheral section and the working cross string section is made up of horizontal strands positioned between the horizontal borders of the peripheral section. The area enclosed by the peripheral section generally defines the "sweet spot" of the racket. Because each of the three string sections is tied off onto itself, the racket can be easily repaired by the mere replacement of any section found to be defective. None of the string holes in the racket frame occupied by any of the three string sections is occupied by either of the other two string sections, and this makes it easy to replace any single section without disturbance of the remaining sections.
REFERENCES:
patent: 1132214 (1915-03-01), Ries et al.
patent: 1173712 (1916-02-01), Du Bois
patent: 1409621 (1922-03-01), Tournier
patent: 1687848 (1928-10-01), Robinson et al.
patent: 1980783 (1934-11-01), Cook et al.
patent: 3545756 (1970-12-01), Nash
patent: 3548484 (1970-12-01), Carlton
Apley Richard J.
Crowe John H.
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