US 12,222,051 B2
Lockable connection between tubular members
Richard Matthew Westgarth, Ouston (GB)
Assigned to Grant Prideco, Inc., Houston, TX (US)
Filed by Grant Prideco, Inc., Houston, TX (US)
Filed on Apr. 27, 2023, as Appl. No. 18/140,089.
Application 18/140,089 is a continuation of application No. 16/770,886, granted, now 11,668,415, previously published as PCT/US2018/064607, filed on Dec. 7, 2018.
Claims priority of provisional application 62/596,547, filed on Dec. 8, 2017.
Prior Publication US 2024/0077153 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F16L 19/00 (2006.01); E21B 17/042 (2006.01); E21B 17/043 (2006.01); E21B 17/046 (2006.01); F16L 19/025 (2006.01)
CPC F16L 19/005 (2013.01) [E21B 17/0423 (2013.01); E21B 17/043 (2013.01); E21B 17/0465 (2020.05); F16L 19/025 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A connection between a first tubular member and a second tubular member, the connection comprising:
a first tubular end including a first tubular end keyway;
a second tubular end including a terminal end face;
a load shoulder member including a load shoulder member keyway and a terminal end surface region, and wherein the load shoulder member is threadable onto the first tubular end;
a nut receivable around the first tubular end and the load shoulder member and threadable onto the second tubular end; and
wherein the load shoulder member is threadable onto the first tubular end until the load shoulder terminal end surface region forms an interface with the terminal end face of the second tubular end and the load shoulder member keyway is disposed axially between the load shoulder member and the terminal end face of the second tubular end, and the load shoulder member keyway aligns with the first tubular end keyway to form an aligned keyway through the load shoulder member and into the first tubular end to receive a key member.