The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 2021
Filed:
Nov. 06, 2020
Petromac Ip Limited, Auckland, NZ;
Stephen Peter McCormick, Auckland, NZ;
Benno Frank Smit, Auckland, NZ;
PETROMAC IP LIMITED, Auckland, NZ;
Abstract
A device for centering a sensor assembly in a bore comprises a mandrel, a first support member and a second support member axially spaced apart along a longitudinal axis of the mandrel. The first and second support members adapted to move axially along the mandrel. A plurality of arm assemblies are spaced circumferentially apart around the longitudinal axis of the device and connected between the first and second support members. Each arm assembly comprises a first arm pivotally connected to the first support member by a first pivot joint having a first pivot axis, a second arm pivotally connected to the second support member by a second pivot joint having a second pivot axis, and the first and second arms pivotally connected together via a third pivot joint having a third pivot axis. The third pivot axis is located on a first side of a plane coincident with the longitudinal axis of the device and the first pivot axis and the second pivot axis are located radially outside an outside diameter of the mandrel on an opposite second side of the plane.