Tennis ball pump

Details Tennis ball pump Tennis ball pump

1977-01-24

1978-07-04

Bell, Houston S.

Package making

Interrelated or safety controls

53 88, 141329, B65B 3104

Patent

active

040980480

ABSTRACT:
A device for inflating tennis balls having a sharpened needle which punctures the wall of the ball which needle inserts both air and a sealant material. A sharpened needle is held by a frame, the needle being hollow to permit passage of air and sealant material. A hollow conduit is affixed to the needle and a pressure sensitive member is positioned in the hollow conduit. Air and a ball sealant is pumped through the hollow conduit into the tennis ball. After all the sealant has been injected additional air is injected in an amount to cause the pressure inside the ball to exceed the desired pre-set pressure. Excess air is removed from the ball through the hollow needle and through a pressure sensitive member until the desired pre-set pressure inside the ball is attained.

REFERENCES:
patent: 2819573 (1958-01-01), Whittington
patent: 2926705 (1960-03-01), Dorn
patent: 3699739 (1972-10-01), Burdwood
patent: 3921977 (1975-11-01), Brink
patent: 3929174 (1975-12-01), Isnardi
patent: 3932977 (1976-01-01), Ringler
patent: 3974622 (1976-08-01), Stubblefield

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