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Tank fitting and method of use

  • US 7,121,589 B2
  • Filed: 09/24/2003
  • Issued: 10/17/2006
  • Est. Priority Date: 09/24/2003
  • Status: Expired due to Term
First Claim
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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.

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