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:
Feb. 24, 2026
Filed:
Jan. 23, 2024
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 plurality of arm assemblies spaced circumferentially apart around a central longitudinal axis of the device and connected between 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 first pivot axis and the third pivot axis are located on a first side of a plane coincident with the central longitudinal axis of the device, and the second pivot axis is located on an opposite second side of the plane to achieve an improved mechanical advantage.