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:
Dec. 14, 2004
Filed:
Jan. 31, 2003
Applicant:
Inventors:
Kwong Yip Poon, Hong Kong, CN;
Siu Chun Tam, Hong Kong, CN;
Assignee:
Johnson Electric S.A., La Chaux-de-Fonds, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/15 ; F16J 1/532 ;
U.S. Cl.
CPC ...
H02K 5/15 ; F16J 1/532 ;
Abstract
An oil seal arrangement for an electric motor, especially a bypass blower motor assembly has an oil seal protecting a shaft bearing and sealing the shaft aperture between a motor part and a blower part. The oil seal has two lips contacting the shaft at two spaced locations forming a grease chamber therebetween. The volume of the grease chamber is enlarged by a groove in the shaft between the lips of the oil seal