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:
Apr. 05, 2005
Filed:
Feb. 10, 2003
Applicant:
Sylvain Nadeau, London, CA;
Inventor:
Sylvain Nadeau, London, CA;
Assignee:
Siemens VDO Automotive Inc., Mississauga, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D029/08 ;
U.S. Cl.
CPC ...
Abstract
A fan-shroud structureincludes a fanmounted for rotation about an axis B. The fan has a plurality of bladeswith tips of the blades being coupled to an annular band. A shroud, including an annular labyrinth seal, is disposed generally adjacent to the annular band thereby defining a gapbetween the annular band and the seal. The seal has a corrugated profile and is constructed and arranged to provide resistance to air flow as air swirls and flows back into the gap and to minimize air leakage across the gap.