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:
Mar. 04, 2003
Filed:
Sep. 30, 1999
Allyn E. Phillips, Salem, SC (US);
Larry D. Schafer, Greenville, SC (US);
Reliance Electric Technologies, LLC, Mayfield Heights, OH (US);
Abstract
A sealing system for a gear reducer includes a compound sealing arrangement disposed in a bore of the reducer housing through which a rotating member extends. The sealing arrangement includes an outboard shielding seal and a inboard lip seal disposed adjacent to one another. The shielding seal includes an annular metallic shield and forms a labyrinth with the rotating member. An elastomeric sealing member is bonded to the shield. The inboard seal provides at least two additional points of contact for sealing the rotating member. The arrangement defined multiple barriers to liquid and solid contaminants and seals lubricant within the reducer housing. Similar arrangements may be provided about several rotating members, and about ends of members extending through the reducer housing, such as an output hub.