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. 09, 2000
Filed:
May. 08, 1997
Charles R Firestone, Elizabethton, TN (US);
Reliance Electric Industrial Company, Milwaukee, WI (US);
Abstract
A speed reducer apparatus includes an auxiliary seal assembly to inhibit ingress of particulate matter. Preferably, the seal assembly is located axially outboard of a primary seal, such as a land riding seal. The seal assembly includes a plate defining a hole through which a rotatable member extends. The hole is sized to provide a predetermined gap between the inside surface of the plate and the outside surface of the rotatable member. An annular bead member is set in place from a viscous state about the rotatable member. In particular, the annular bead member extends across the gap between the plate and the rotatable member, functioning as a dam. Methods of forming the auxiliary seal assembly are also disclosed.