Home tennis practice contrivance

Details Home tennis practice contrivance Home tennis practice contrivance

1975-04-28

1977-01-18

Oechsle, Anton O.

Amusement devices: games

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

Target

46 88, 273 95A, A63B 6100

Patent

active

040035727

ABSTRACT:
An inflatable and deflatable thin-walled bag resembling a toy balloon is adapted to be suspended from an overhead support by an elongated flexible filamentary member, such as a cord, by an attachment device, such as an adhesive strip. The length of the cord is adjustable by an adjusting device to position the bag at the desired height for the particular stroke intended to be practiced. A sharp stroke from the tennis racquet causes the air-filled bag to fly at a decreasing speed rapidly away from the racquet, but to return much more slowly because of the effect of its light weight combined with the resistance of the air upon it. Due to the effect of this rapid retardation on the return flight of the bag, the user is given sufficient time, even after making a full follow through, to enable him or her to assume the proper stance for the next practice stroke according to the height of the bag above the floor or ground level.

REFERENCES:
patent: 700850 (1902-05-01), Stone
patent: 811546 (1906-02-01), Conroy
patent: 2045972 (1936-06-01), Tompkins
patent: 3643948 (1972-02-01), Coates
patent: 3646887 (1972-03-01), Stine

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