Pressurized tennis ball container

摘要

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.