US 12,442,278 B2
Tandem sub for a perforating gun assembly
Shelby L. Sullivan, Minot, ND (US); and Joshua M. Scott, Katy, TX (US)
Assigned to XConnect , LLC, Denver, CO (US)
Filed by XConnect, LLC, Denver, CO (US)
Filed on Apr. 22, 2024, as Appl. No. 18/642,127.
Application 18/642,127 is a continuation in part of application No. 18/586,504, filed on Feb. 25, 2024.
Application 18/586,504 is a continuation in part of application No. 18/435,553, filed on Feb. 7, 2024.
Application 18/586,504 is a continuation in part of application No. 29/920,858, filed on Dec. 13, 2023, granted, now D1082873.
Application 18/586,504 is a continuation in part of application No. 29/920,815, filed on Dec. 13, 2023.
Claims priority of provisional application 63/511,903, filed on Jul. 5, 2023.
Claims priority of provisional application 63/497,305, filed on Apr. 20, 2023.
Prior Publication US 2024/0352832 A1, Oct. 24, 2024
Int. Cl. E21B 43/116 (2006.01); E21B 43/119 (2006.01)
CPC E21B 43/116 (2013.01) [E21B 43/119 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A tandem sub for a perforating gun assembly, comprising:
a tubular body defining a first end, and a second end opposite the first end, with the tubular body having an internal bore extending from the first end to the second end;
connection threads placed at each of the first end and the second end;
a first tapered shoulder residing along the internal bore at the first end, with the first tapered shoulder defining an angle relative to a central axis of the internal bore; and
a plurality of first roller bearings disposed along the first tapered shoulder;
and wherein the first tapered shoulder forms a first race dimensioned and configured to engage the plurality of first roller bearings.