US 11,719,590 B2
Weld test plugs and methods of use
Josh Coombs, Fort Saskatchewan (CA)
Assigned to CLEARWATER PIPE RENTALS INC., Fort Saskatchewan (CA)
Appl. No. 17/257,577
Filed by CLEARWATER PIPE RENTALS INC., Meadow Lake (CA)
PCT Filed Jul. 19, 2019, PCT No. PCT/CA2019/051005
§ 371(c)(1), (2) Date Jan. 3, 2021,
PCT Pub. No. WO2020/014794, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. CA 3012098 (CA), filed on Jul. 20, 2018.
Prior Publication US 2021/0255054 A1, Aug. 19, 2021
Int. Cl. G01M 3/02 (2006.01); G01M 3/28 (2006.01); F16L 55/10 (2006.01); G01N 3/12 (2006.01)
CPC G01M 3/022 (2013.01) [G01M 3/2815 (2013.01); G01N 3/12 (2013.01); G01N 2203/0296 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A weld test plug comprising:
a flange;
an actuator rod mounted to the flange, the actuator rod having:
a part expander;
an annular seal; and
an axial stop;
in which the actuator rod is connected to, during use, cause the part expander to actuate:
the axial stop to move in a radially outward direction relative to the actuator rod;
the annular seal to radially expand and abut the axial stop; and
in which the part expander has a first axial portion that is structured to slide relative to and within the annular seal to radially expand the annular seal.