Inflatable suspension tube for game racket head

Details Inflatable suspension tube for game racket head Inflatable suspension tube for game racket head

1986-06-27

1988-09-20

Pinkham, Richard C.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 73E, 273 73L, A63B 5112

Patent

active

047720212

ABSTRACT:
An inflatable generally toroidal suspension tube for resiliently suspending and retaining a stringed inner frame insert within an outer frame of a racket head. Different parts of the tube are able to expand at different rates in response to increased inflation pressure, so as to control distortion of the outer frame of the racket head. The tube may be of a thermoplastic material and tubular restrictors surround the portions of the suspension tube which are intended in use to be located where the radius of curvature of the frame is greatest, in order to prevent distortion of those parts of the racket head frame.

REFERENCES:
patent: 584289 (1897-06-01), Morgan
patent: 1372417 (1921-03-01), Gardner
patent: 2512774 (1950-06-01), Musselman
patent: 4357012 (1982-11-01), Maynard

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