Patent ID: 8807312
Filing Date: 2014-08-19
Classification: F16D

Abstract:
1. A hydraulic actuating pin system comprising: an actuating pin having a proximal end and a distal end; a clutch drum having a scalloped annulus extending circumferentially on a face of the clutch drum, the scalloped annulus having a raised section and a lowered section, the raised section extending away from the face of the clutch drum above the lowered section; a spring pushing the actuating pin towards the scalloped annulus of the clutch drum, wherein when the actuating pin extends into the lowered section of the scalloped annulus, the actuating pin prevents the clutch drum from rotating by preventing the raised section of the scalloped annulus from rotating below the actuating pin; and a hydraulic input supplying hydraulic pressure to compress the spring and extract the actuating pin from the clutch drum and above the raised section of the scalloped annulus to allow the clutch drum to rotate without interference from the actuating pin; wherein the distal end of the actuating pin includes a distal face, and when the actuating pin is fully extended into the lowered section of the scalloped annulus of the clutch drum, the distal face of the actuating pin does not touch the bottom of the lowered section of the scalloped annulus of the clutch drum.