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. 22, 2005
Filed:
Apr. 25, 2003
Peter Niebling, Bad Kissingen, DE;
Jens Heim, Schweinfurt, DE;
Roland Langer, Schwanfeld, DE;
Heinrich Hofmann, Schweinfurt, DE;
Peter Niebling, Bad Kissingen, DE;
Jens Heim, Schweinfurt, DE;
Roland Langer, Schwanfeld, DE;
Heinrich Hofmann, Schweinfurt, DE;
FAG Kugelfischer AG & Co. KG, , DE;
Abstract
A wheel bearing having an external, rotating, magnetic encoder which registers rotational speed of the bearing, and a magnetic particle trapping device spaced from the magnetic encoder to protect it against contamination. The trapping device includes a permanent magnet and a cooperating soft iron member which together form an L-shaped configuration relative to each other, with the magnet extending axially relative to the rotation of the wheel and the soft iron member extending radially, or vice versa. Contaminants are collected in a space between the soft iron member and the magnet. A magnetically non-conductive element may be provided to separate the trapping device from the metallic housing of the constant velocity joint on which the trapping device is mounted. A wiping finger may be provided to dislodge accumulated contaminant particles, which may then fall to the roadway.