Pressurized tennis ball container

Details Pressurized tennis ball container Pressurized tennis ball container

1975-02-13

1977-04-26

Price, William

Special receptacle or package

For a sport implement, exercise device, or game

For a golf club

73419, 137859, 215335, 273 61D, 417555R, B65D 8516

Patent

active

040196291

ABSTRACT:
A pressurized tennis ball container has a cover which fits onto a standard metal tennis ball can. The cover includes a hand pump having a sliding seal which opens to permit rapid refilling of the hand pump cylinder with air during the upstroke of the piston, an air pressure indicator, which indicates the pressure within the can, a pressure release member to release the air pressure within the can to facilitate opening the cover, and an improved diaphragm valve.

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patent: 3807430 (1974-04-01), Keller
patent: 3853222 (1974-12-01), Helms
patent: 3888347 (1975-06-01), Kramer

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