Motor vehicles – Special driving device – Stepper
Reexamination Certificate
2011-06-14
2011-06-14
Dickson, Paul N (Department: 3611)
Motor vehicles
Special driving device
Stepper
C180S008100, C180S008200, C180S008500, C180S009300, C180S009320, C180S009340
Reexamination Certificate
active
07958955
ABSTRACT:
An automotive device for the inspection of internal spaces having ferromagnetic surfaces includes at least two magnetic wheels (3) or caterpillars, or at least two magnetic legs for the advancement of the device along the surfaces to be inspected. According to the invention, the device includes actively powered rotating arms (1) attached to a wheel (3), caterpillar, or leg of the device. Each rotating arm (1) has a length longer than the shortest distance between the point of attachment of the rotating arm to the device and the surface. When the device is in a position, where there is magnetic contact to the surface in two or more points and the device is no longer able to advance due to the strength of the magnetic forces, the rotating arms are brought into non-magnetic contact with the surface in order to create an air gap between the surface and the magnetic wheel and thus reduce the magnetic forces. The device is thereby enabled to overcome the magnetic forces and advance the device along the surface.
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Fischer Wolfgang
Mondada Francesco
Moser Roland
Siegwart Roland Yves
Tache Fabien
Alstom Technology Ltd
Arce Marlon A
Buchanan Ingersoll & Ronney PC
Dickson Paul N
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