Patent ID: 6319397
Filing Date: 2001-11-20
Classification: E03C,E03F

Abstract:
A draining device adapted to be disposed within a drain port, the drain port being defined by an upper end of a first drain pipe that is embedded in the ground at an elevation below the ground surface, said draining device comprising:a tubular base member adapted to be disposed on the upper end of the first drain pipe and having an open upper end, a closed lower end, a bottom wall, and a peripheral wall that extends between the upper and lower ends and that is formed with a plurality of drain openings;a water guiding tube attached within said base member, and extending into said peripheral wall of said base member, said drain openings of said base member being located around said water guiding tube and being at an elevation above a lower end of said water guiding tube, said water guiding tube having open upper and lower ends and being adapted to guide water from said upper end of said base member to said bottom wall of said base member; andsaid water guiding tube further having an upper tube element having an open upper end that is adapted to be press fitted within a lower end of a second drain pipe, a small-diameter upper section and a large-diameter lower section, which has a diameter larger than that of said small-diameter upper section and a uniform-diameter lower tube element having an open end that is press fitted within a lower end portion of said small-diameter upper section of said upper tube element of said water guiding tube;whereby, water that accumulates in said closed lower end of said base member has a water surface level that is above said lower end of said water guiding tube so as to isolate air in said water guiding tube from air in the first drain pipe and so as to prevent insects in the first drain pipe from accessing said water guiding tube.