Patent ID: 6679253
Filing Date: 2004-01-20
Classification: B63C

Abstract:
An automatic water stopper for snorkel, comprising:a lower case being internally provided with a plurality of radially equally spaced upright air tubes, such that spaces in said lower case between any two said air tubes adjacent to each other together form a float receiving space; said lower case being provided at a lower central portion with a hose connector downward projected from a bottom of said lower case, each of said air tubes being provided at a lower portion with an opening, via which said air tubes are communicable with said tube connector; said hose connector being connected at a lower end to an upper end of a hose of a snorkel, and a lower end of said hose of said snorkel having a mouthpiece holder connected thereto; a float having a radiated cross section being adapted to locate in said float receiving space in said lower case; a water-stopping diaphragm having a radiated cross section corresponding to that of said float for locating at a top of said float; an air path disk including a plurality of alternately arranged valve openings and air paths, said air paths being aligned with and therefore always communicable with said air tubes of said lower case, and accordingly, with said hose connector and said snorkel hose via said openings on said air tubes; said valve openings being closed when said radiated float and said radiated water-stopping diaphragm are at an upper position in said lower case, and being opened when said radiated float and said radiated water-stopping diaphragm are at a lower position in said lower case; an upper hood defining an internal space, to a lower side of which said air path disk is mounted, such that said valve openings and said air paths on said air path disk are communicable with one another in said internal space of said upper hood; and an upper case being put over said upper hood to connect at a lower peripheral edge to an upper peripheral edge of said lower case.