Swivel coupling device

A swivel coupling device, said device comprising:

• a first portion having a first and a second end;
• said first portion including:
• a tubular extension defining a cylindrical outer surface having an annular recess therein;
• an O-ring co-operating with and partially disposed within said recess;
• means disposed between said extension and said second end of said first portion for selectively inhibiting rotational movement of said first portion;
• a collar disposed between said recess and said means, said collar and said means defining therebetween an annular groove;
• open sided washer means transversely mounted in and co-operating with said annular groove for limiting axial movement of said first portion relative to said washer means;
• a second portion having a first and a second extremity, said second portion defining a bore and a counterbore, said bore extending from said first extremity to said counterbore, said counterbore extending from said bore to said second extremity;
• a cylindrical insert disposed within said counterbore, said insert defining a conduit which slidingly receives therein said tubular extension such that said O-ring slidingly engages said conduit;
• a flange extending from said second extremity of said second portion;
• and
• fastening means for fastening said flange to said washer means, the arrangement being such that when said extension is slidingly received within said conduit, and when said washer means is disposed within said groove, said fastening means fastens said flange to said washer means so that relative rotation between said first and second portions is permitted.