Special receptacle or package – For a sport implement – exercise device – or game – For a ball
Patent
1982-07-07
1984-01-31
Dixson, Jr., William T.
Special receptacle or package
For a sport implement, exercise device, or game
For a ball
417307, 417555R, 220231, B65D 8300
Patent
active
044284780
ABSTRACT:
A pump mechanism primarily designed for use in sealing and pressurizing a container for tennis balls and the like. An alternate embodiment is adaptable for use in pressurizing items such as game balls and air-inflated shock absorbers and forks as used on motorcycles. The pump has a cylinder with a one-way valve at the outlet end. A piston is provided for moving longitudinally in and out of the cylinder to provide the pumping action. The piston is hollow and contains a second, spring-biased piston therein. The side wall of the piston contains a relief channel or hole at a pre-set distance from the bottom thereof. As the pressure in the pump increases, the piston within the piston is forced back against the increasing bias of the spring. When the biased piston moves sufficiently to expose the outlet channel or hole, the pressure limit of the pump is reached as any additional pressure is vented therefrom.
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Dixson, Jr. William T.
Fidei David T.
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