Patent ID: 7866346

Claim:
A plug retainer and receiving flange for a mud pump fluid module pipe comprising: a) a plug retainer; b) a receiving flange, said receiving flange having a bore for receiving said plug retainer; c) a least two segments of plug retainer threads axially disposed upon and extending from the periphery of said plug retainer, each segment of plug retainer threads having at least a first and a second column of threads, said segments of plug retainer threads being disposed opposite each other on said plug retainer to form gaps between each of said segments of plug retainer threads, said first and said second columns of threads on said segments of plug retainer threads being progressively stepped outward from said the periphery of said plug retainer; d) at least two segments of receiving flange threads axially disposed upon the periphery of said receiving flange bore, said segments of receiving flange threads being disposed opposite each other along said receiving flange bore to form gaps between each of said segments of receiving flange threads, each said segment of receiving flange threads having at least a first and a second column of threads, said receiving flange threads being progressively stepped inward from said bore of said receiving flange, said first and second columns of receiving flange thread segments being configured to correspond with said first and second columns of said plug retainer thread segments; and e) a means to rotate said plug retainer within said bore of said receiving flange to engage said segments of plug retainer threads with said segments of receiving flange threads.