Tennis ball retriever

Details Tennis ball retriever Tennis ball retriever

1977-04-28

1978-09-26

Stoner, Jr., Bruce H.

Mechanical guns and projectors

Element

Magazine

273 29A, 198642, A63B 6938

Patent

active

041161920

ABSTRACT:
A tennis ball retriever and ball transporter for retrieving tennis balls from a collection point on a court surface and transporting the balls to a ball throwing machine. The machine comprises a pinwheel having sawtooth projections enclosed by a circular wall, with a tube extending through the wall in alignment with the movement of balls around the periphery of the wall, and an electric motor for rotating the pinwheel. As balls drop into open regions between the pinwheel projections and the wall, they are engaged by the projections and driven around the periphery of the wall into the open end of the tube. The opposite end of the tube extends to the ball throwing machine, which may be disposed on top of the retriever.

REFERENCES:
patent: 2225820 (1940-12-01), Clark
patent: 2765171 (1956-10-01), Cook
patent: 2793636 (1957-05-01), Cook
patent: 3399660 (1968-09-01), Swartout
patent: 3815907 (1974-06-01), Cook
patent: 3878827 (1975-04-01), Newgarden
patent: 3989246 (1976-11-01), Brown et al.
patent: 4025071 (1977-05-01), Hodges

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