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. 09, 2004
Filed:
Jul. 02, 2002
Richard Jacobson, Ann Arbor, MI (US);
NTN Corporation, Osaka, JP;
Abstract
A pressure actuated clutch pulley rotationally engaging an input device and an output shaft, including a sheave member, a hub member, a plate member, and a clutch. The sheave member includes a sheave input section adapted to engage the input device and a sheave structural section extending radially inward. The hub member includes a hub output section adapted to engage the output shaft. The plate member includes a plate outer edge mounted to the sheave input section and a plate inner edge located radially inward from the plate outer edge. The sheave member, the hub member, and the plate member cooperatively define a cavity. The plate inner edge is selectively movable between two axial position based upon a pressure within the cavity. The clutch is adapted to selectively rotationally engage the plate member and the hub member based upon the axial position of the plate inner edge.