CPC F16L 19/02 (2013.01) [F16B 37/00 (2013.01); F16B 37/16 (2013.01)] | 20 Claims |
1. A hammer nut, for connecting two pipe segments that are used to transfer fluids under pressure during oilfield service or production operations, comprising:
a body having a generally cylindrical shape extending along an axis from a first end to a second end, the body including a sidewall defining an outer surface of the body and a central opening around the axis, the central opening comprising:
a first cylindrical surface extending a first axial distance from the first end of the body;
at least one thread formed on the first surface;
a second surface extending a second axial distance away from the first surface and toward the second end, the second surface being angled, between about 2 degrees and about 6 degrees, relative to the first surface along the second axial distance, wherein the first axial distance is from about 0.5 to about 2.0 times the second axial distance; and
a third surface proximate the second end, the third surface being disposed radially inwardly of the first surface and the second surface; and
a plurality of lugs extending radially outwardly from the outer surface of the body.
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