Tennis ball collection, pick-up and propelling system

Details Tennis ball collection, pick-up and propelling system Tennis ball collection, pick-up and propelling system

1975-12-15

1978-08-22

Pinkham, Richard C.

Amusement devices: games

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

Target

124 51A, 124 48, 124 41R, A63B 6900

Patent

active

041084322

ABSTRACT:
A tennis ball retrieving and propelling device for placement on a surface having a ball delivery tube and a carrousel type ball retriever positioned below the ball delivery tube for receiving balls to be pneumatically transported to the ball delivery tube. The delivery tube is provided with a mechanism for constricting the effective cross sectional area thereof. The mechanism is provided with a releasing element for releasing the constriction to permit a ball to be pneumatically propelled through the tube. The mechanism includes a section of flexible tubing attached to the delivery tube, a cable surrounding the flexible tubing and a device attached to the cable for tensioning and releasing the cable to restrict and release a ball traveling through the flexible tube. The balls are pneumatically retrieved and propelled from the propelling device. The propelling device has elements for controlling the speed, azimuth and elevation of a ball delivered therefrom.

REFERENCES:
patent: 2087575 (1937-07-01), Littell et al.
patent: 2147705 (1939-02-01), Hunter
patent: 2199009 (1940-04-01), Perryman
patent: 2646785 (1953-07-01), Goldman
patent: 3306613 (1967-02-01), Mainers
patent: 3779227 (1973-12-01), Scott
patent: 3785358 (1974-01-01), D'Angelo et al.
patent: 3858880 (1975-01-01), Graves
patent: 3917265 (1975-11-01), Schrier et al.
patent: 3948512 (1976-04-01), Worthington

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