Patent ID: 9487254
Filing Date: 2016-11-08
CPC Classification: B62D,G01M,G01N

Claim Text:
1. A vehicle for independent inspection of ferromagnetic surfaces, the vehicle comprising: a housing having a single common axis passing therethrough; two wheels rotatable around the common axis arranged a distance from each other in an axial direction of the common axis adjacent opposed ends of the housing and operable to be driven independently of each other through separate common axis centered drive shafts and drives; and two permanent magnets arranged on an underside of the housing with each of the two permanent magnets abutting a different one of the opposed ends of the housing adjacent to each of the two wheels; and a separate adherence element enclosed within each of the two wheels to hold the wheels in engagement with the ferromagnetic surfaces, wherein the two wheels and the two permanent magnets are arranged to hold the housing stable in a fixed orientation with respect to a ferromagnetic surface upon motion of the two wheels on the ferromagnetic surface.