Patent ID: 7121589
Filing Date: 2006-10-17
Classification: E03B,E03F,F16L,Y02A

Abstract:
1. A tank fitting comprising: a longitudinal stepped internal bore passing through first and second ends of the tank fitting, the internal bore having first and second diameters respectively defining first and second sockets of a female-end region of the tank fitting adjacent the first end, the internal bore further having a third diameter that forms an internal diameter of a male-end region of the tank fitting adjacent the second end, the male-end region adapted to be received within a fitting or a pipe for bonding thereto; a flange disposed between the first and second ends; external threads disposed between the flange and the first end; a gasket disposed between the flange and the first end so as to abut the flange; a stud protruding from a face of the flange toward the first end and passing completely through the gasket; and a nut threadably attachable to the external threads, the nut comprising an annular groove into which the stud extends when the nut is threadably attached to the external threads.