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:
Jul. 22, 1986
Filed:
Jun. 02, 1983
Wayne D Hendricks, Mukwonago, WI (US);
Wehr Corporation, Milwaukee, WI (US);
Abstract
A non-rotatable, axially movable control ring is connected to the ring on the clutch input through a thrust bearing to control engagement and disengagement of the clutch input with the output. The control ring is biased to the clutch disengaged position by springs which are weaker than those biasing a loading plate to a stop cancelling out of the loading spring force. Energization of the magnet coil fixed on the control initially causes movement of the coil towards the armature fixed on the loading plate. That causes the clutch to engage before the magnet air gap is closed. Therefore, the armature moves to the coil and this lifts the loading plate off its stop against the loading spring. When the armature engages the coil, the loading spring acting on the plate acts through the magnet to the control plate to load the clutch and determine torque capacity which is adjusted by adjusting the load on the torque spring.