Package making – Gas filling and/or evacuating of receptacle and closing
Patent
1976-11-10
1978-05-02
Aegerter, Richard E.
Package making
Gas filling and/or evacuating of receptacle and closing
141329, 273 61D, B65B 3108
Patent
active
040867439
ABSTRACT:
A simple, easily-operated device is provided by which a "dead" tennis ball can be revitalized by injecting it with a gas, preferably in the form of an aerosol propellant. The device described comprises an aerosol container suitably charged and connected to a tubular needle and also a ball-receiving cup. Pressure from the propellant restores original bouncing quality to the ball. A sealant can be mixed with the propellant or gas if desired or necessary. Proper selection of propellant and sealant mixture automatically meters the amount of sealant moving into the ball. Safety features of the device protect the needle.
REFERENCES:
patent: 3841532 (1974-10-01), Gores
patent: 3929174 (1975-12-01), Isnardi
Aegerter Richard E.
Hoopes Dallett
Schmidt Frederick R.
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