US 12,234,693 B2
Movable drill rod spacer assembly
Jesse David Pleysier, Beckenham WA (AU); and Paul Kalisch, Darch WA (AU)
Assigned to Wallis Engineers Pty Ltd, Midvale, WA (US)
Appl. No. 18/031,635
Filed by Wallis Engineers Pty Ltd, Midvale WA (AU)
PCT Filed Oct. 14, 2021, PCT No. PCT/AU2021/051205
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2022/077070, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 2020903735 (AU), filed on Oct. 14, 2020.
Prior Publication US 2023/0407714 A1, Dec. 21, 2023
Int. Cl. E21B 19/15 (2006.01)
CPC E21B 19/15 (2013.01) 27 Claims
OG exemplary drawing
 
1. A drill rod spacer assembly comprising:
a plurality of spacer members each movable to a first position,
a drive arrangement for moving a body,
the body configured for interacting with one or more of the spacer members while moving so as to move the one or more of the spacer members to each respective first position, and
a detent member configured operable for supporting a respective one of the spacer members in the respective first position when the body moves to interact with another one of the spacer members.