Elastomeric test cup for tubing pressure testing

A tubing test cup for pressure testing oil and gas tubing, casing and pipe comprising;

• an elastomeric sleeve having a belled end responsive to fluid pressure for undergoing radial expansion for sealing engagement with a member to be tested, and further having a second end opposite the belled end, said sleeve defining a bore extending axially therethrough between the ends;
• a reinforced tubular portion of elastomer formed integrally with the sleeve, and positioned concentrically within, and radially spaced from, the belled end of the sleeve, said tubular portion defining a fluid-receiving cavity with the belled end of the sleeve;
• and
• a plurality of circumferentially spaced, arcuate reinforcing ring segments each having a transverse width, as measured in a circumferential direction with respect to the elastomeric sleeve and across the arcuate cross-section of each ring segment, said ring segments being embedded in the elastomeric sleeve adjacent said second end, and in collective array concentrically surrounding the bore through the sleeve, each of said segments being separated from the next adjacent segment by elastomer constituting a portion of the elastomeric sleeve, the elastomer separating adjacent ring segments, and positioned therebetween, having a transverse width, as measured between adjacent ring segments, less than said transverse width of each of said ring segments, said ring segments each being of L-shaped cross-sectional configuration and including
• an end flange extending substantially normal to the axis of the bore through the sleeve;
• and
• an axially extending flange projecting substantially normal to the end flange and secured to the radially outer edge of the end flange at a location adjacent the outer periphery of the elastomeric sleeve.