Games using tangible projectile – Golf
Patent
1996-11-14
1999-07-20
Pierce, William M.
Games using tangible projectile
Golf
473282, A63B 6936
Patent
active
059249323
ABSTRACT:
A golf club having a retractor system disposed in the club head. The retractor system may be pneumatic, which allows pressure from an expanding gas to alternatingly operate on opposite sides of a seal ring attached to a piston. The golf club includes a hollow shaft extending from one end and terminating in a club head. The club head includes a piston cylinder extending from a gas injection port terminating proximate to a front face of the club head. A feed chamber is disposed on each side of the piston cylinder, each of which is in fluid communication therewith. A piston is disposed within the cylinder and includes a ring seal at one end. The ring seal forms a fluid tight seal with the walls of the piston cylinder. A receptacle, adapted to provide a rapidly expanding gas, is disposed proximate to the injection port to direct expanding gas therethrough, moving the piston away from the injection port. Openings in the feed chambers are positioned in the piston cylinder to allow expanding gas exiting the injection port to travel through the club head and create a pressure differential in the cylinder so as to move the piston toward the injection port. Alternatively, a mechanical retractor may be employed that includes a flexible lanyard.
REFERENCES:
patent: 769939 (1904-09-01), Clark
patent: 1739467 (1929-12-01), Klutho
patent: 4170357 (1979-10-01), Greer
patent: 5522594 (1996-06-01), Taylor et al.
Ahern, Gene, comic strip, Times-Union, p. 31 (Apr. 20, 1956).
CenterFire Golf Corporation
Pierce William M.
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