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:
May. 06, 2003
Filed:
Sep. 18, 2000
Daniel Nachtigal, Ann Arbor, MI (US);
Casimir R. Kiczek, Ann Arbor, MI (US);
Freudenberg-NOK General Partnership, Plymouth, MI (US);
Abstract
A speed sensing seal with a first support member, a second support member, a magnetic elastomer member, a sensor member and an elastomeric seal member is disclosed. The magnetic elastomeric member with alternating adjacent poles is formed on the first support member and the sensor member is attached to an aperture in the second support member and overmolded with a layer of elastomer. The first and second support members are formed in the unitized body to form an internal cavity which contains the sensor, magnetic member, and the elastomeric seal. The first support member has a low wear surface to reduce initial seal failures and to enhance seal life.