US 11,053,747 B2
Insert for use with dual-member pipe joint
Greg L. Slaughter, Jr., Perry, OK (US)
Assigned to The Charles Machine Works, Inc., Perry, OK (US)
Filed by The Charles Machine Works, Inc., Perry, OK (US)
Filed on Jul. 12, 2018, as Appl. No. 16/34,005.
Claims priority of provisional application 62/540,277, filed on Aug. 2, 2017.
Prior Publication US 2019/0040692 A1, Feb. 7, 2019
Int. Cl. E21B 17/04 (2006.01); E21B 17/046 (2006.01); E21B 7/04 (2006.01)
CPC E21B 17/04 (2013.01) [E21B 7/046 (2013.01); E21B 17/046 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An assembly, comprising:
a first inner pipe member configured to be coupled to a second inner pipe member such that the first and second inner pipe members are in a torque-transmitting relationship;
an insert having the shape of an unclosed loop at least partially surrounding the first pipe member, in which the insert has opposed ends separated by a gap;
a first outer pipe member at least partially surrounding the first inner pipe member and the insert, in which the first outer pipe member is configured to be coupled to a second outer pipe member such that the first and second outer pipe members are in a torque-transmitting relationship; and
a fluid flow passage formed between the first inner pipe member and the first outer pipe member and extending through the gap.