Patent ID: 9574613
Date: 2017-02-21
CPC Classifications: B66F,F16D,F16H

Claim:
1. A machine leveling pedestal comprising: (a) a cylinder and piston combination defining an interior expansion space, said combination having a helically threaded outer surface, and having an upwardly facing land; (b) a hydraulic fluid passage port opening the interior expansion space; (c) a nut having a downwardly facing land and having gear teeth, the nut being threadedly mounted over the cylinder and piston combination's helically threaded outer surface; (d) a drive gear and rotatable mounting means combination connected operatively to the cylinder and piston combination for vertically slidably engaging the drive gear with the nut's gear teeth, and for, upon alternate rotations and counter-rotations of the drive gear, alternately rotating and counter-rotating the nut about the cylinder and piston combination so that the nut may vertically move between a mechanical support position and a hydraulic support position, the upwardly and downwardly facing lands contacting each other upon the nut's movement to the mechanical support position, and the downwardly facing land displacing upwardly from the upwardly facing land upon the nut's movement toward the hydraulic support position; and (e) turning means connected operatively to the drive gear and rotatable mounting means; wherein the cylinder opens downwardly and has an upper end configured for machine support; wherein the cylinder and piston combination's piston has a lateral flange positioned at the piston's lower end, the upwardly facing land being positioned at said lateral flange; and (f) a debris shield, the debris shield comprising a lateral wall having a lower end, the lateral wall's lower end being fixedly attached to the lateral flange.