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:
Jan. 11, 1994
Filed:
Dec. 18, 1992
Applicant:
Inventor:
Harald Dax, Stuttgart, DE;
Assignee:
Behr GmbH & Co., Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 / ; 192 / ; 403285 ; 411309 ;
Abstract
The invention is directed to a fluid friction coupling which includes a drive shaft made of steel and a drive disc made of an aluminum alloy. A coupling housing defines a work space in which the drive disc is disposed. The drive disc includes a hub defining an internal thread and the drive shaft has an end lug defining an outer thread. The drive shaft and hub are threadably engaged and tightened with respect to each other so as to cause the threads to conjointly define a thread joint which is plastically deformed to provide a permanent joint between the drive disc and the drive shaft.