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:
May. 29, 1990
Filed:
Feb. 27, 1989
Osamu Ishikawa, Tochigi, JP;
Kazuyoshi Watanabe, Tochigi, JP;
Tochigifujisangyo Kabushiki Kaisha, Tochigi, JP;
Abstract
To facilitate subassembly of a power transmitting (viscous coupling) apparatus without use of a hub, the apparatus comprises a multistep shaft formed with an input portion and a multistep shoulder portion steppedly narrowed in diameter from the input portion to the opposite side; a casing fitted to the multistep shaft from the opposite side of the shaft and formed with an output portion; and two sets of resistance plates engaged with and arranged along the axial direction of each of the multistep shaft and the casing, within a working chamber formed between the shaft and the casing, so as to intervene between two other resistance plates.