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:
Oct. 27, 1998
Filed:
Nov. 14, 1996
Applicant:
Inventor:
Hans Martin, Stuttgart, DE;
Assignee:
Behr GmbH & Co., Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P / ;
U.S. Cl.
CPC ...
123 4111 ; 123 4149 ; 165121 ; 165D / ;
Abstract
A tandem fan for a motor-vehicle radiator has one fan impeller driven via a fluid friction clutch by the engine shaft. Both fan impellers have belt pulleys with a common driving belt. Overrunning clutches for the two fan impellers ensure the impellers are driven by the drive shaft which is running faster.