Patent ID: 7051753

Claim:
A valve for a container which comprises: a bowl having perforations in said bowl and a thread on an inside surface around a rim of said bowl; a flange extending outwardly from said rim and arranged for sealing to an outer surface of said container with said bowl extending through an opening into an interior region of said container, providing that compressed air in said container can escape only through said perforations in said bowl; a cylindrical housing having a thread on an outer surface at one end of said housing; a plug including a disk with a stem extending vertically away from a center of said disk; and a stop on an end of said stem opposite said disk; a spider having a central aperture arranged with distal ends of said spider attached to an inside surface of said housing with said stem slideably positioned in said central aperture; a compression spring mounted on said stem; said housing, spider, spring and plug operably arranged and dimensioned to provide that, in one position, said disk is biased by said spring and pressurized gas in said container to cover said one end of said housing and prevent said pressurized gas from escaping from said container through said housing and in another position, said disk is displaced from said one end of said housing permitting compressed air to escape through said openings in said bowl and through a passage between said disk and said one end of said housing; a cap configured to provide that, when said cap is mounted on an opposite end of said housing, compressed air is prevented from escaping from inside said housing to outside said container and when said cap is separated from said opposite end of said housing, air in said housing is enabled to escape from out of said opposite end of said housing to outside said container; a tether having one end integrally joined to said cap; one loop joined to another end of said tether and dimensioned to fit securely around said rim of said bowl; another loop formed as a part of said tether between said cap and said one loop and dimensioned to securely fit around said housing; said tether providing that all parts of said valve are fastened together.