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:
Aug. 29, 1989
Filed:
Jun. 16, 1988
William M Riley, Milan, MI (US);
Mather Seal Company, Milan, MI (US);
Abstract
A dust excluder (12) for a seal assembly (10) such as utilized with a vehicle air conditioning compressor is disclosed as having an annular inner portion (36) that mounts on a rotatable compressor shaft (20) and as including an outer portion (38) that seals with an annular support (24) of the seal assembly axially outward from a shaft seal (30) in a manner that excludes dust to prevent seal abrasion without increased heating of the compressor shaft. The inner portion (36) of the dust excluder is preferably embodied by an annular body (56) having opposite axial ends (58,60) and the outer portion (38) is preferably embodied by a sealing section (62) having a disc (64) extending outwardly from the annular body (56) and by a sealing lip (66) extending outwardly from the disc for slidable engagement with the annular support (24). The sealing lip (66) is preferably inclined and has an edge junction that provides an annular line contact (68) with the annular support (24).