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:
Mar. 22, 1994
Filed:
Jun. 02, 1993
Siegfried Schumann, Lohmar, DE;
Wolfgang Gimpel, Lohmar, DE;
Viscodrive GmbH, Lohmar, DE;
Abstract
A fluid friction coupling comprises a coupling hub (1) and a coupling housing (2) rotatably supported on the coupling hub. The coupling also comprises sets of plates (6; 7) non-rotatably mounted on the hub and housing. One set of plates has spacing teeth (8) which, while eliminating the previously used spacer rings, permit accurate spacing of the set of plates. A predetermined number of spacing teeth (8) of the axially immovable plates (7) are bent out of the plane of the respective plate so as to be Z-shaped with both bending angles approximately 90 degrees. This measure ensures that the plates for a friction coupling are designed in such a way that they are accurately spaced at predetermined distances and that they are suitable for automatic assembly purposes.