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:
Nov. 04, 2025
Filed:
May. 11, 2022
Saudi Arabian Oil Company, Dhahran, SA;
Fadl Abdellatif, Thuwal, SA;
Ahmed Al Brahim, Thuwal, SA;
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
A system and method use a magnetic cancellation loop to control magnetic wheel adhesion. The wheel has an inner annular disc composed of a non-magnetic material with apertures to retain ferromagnetic structures and magnets, and an outer annular discs composed of a ferromagnetic material and are disposed on either side of the inner annular disc. Each outer annular disc has a non-magnetic isolator ring having curves extending in a serpentine manner. In a first configuration, the curves isolate the ferromagnetic structures from the magnets, thereby generating a first magnetic flux to increase the adhesion of the wheel to the ferromagnetic surface. In a second configuration, at least one outer annular disc is rotated to dispose the curves to allow magnetic interaction between the ferromagnetic structures and magnets, thereby generating a second magnetic to decrease the adhesion of the wheel to the ferromagnetic surface. The method implements the system.