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:
Feb. 21, 1984
Filed:
Mar. 12, 1981
Applicant:
Inventor:
Kurt Hauser, Stuttgart, DE;
Assignee:
Sueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
192 / ; 192 / ;
Abstract
Disclosed is a fluid friction clutch, comprising a drive disk having at least one first working surface; a housing enclosing said drive disk and being mounted rotatably with respect thereto, the housing including at least one second working surface in spaced relationship with the first working surface to form a gap therebetween; a device for selectively introducing a fluid working medium into the gap; and a device for removing the fluid working medium from the gap, wherein the first and/or second working surfaces comprise roughened surfaces.