Patent ID: 9611922
Date: 2017-04-04
CPC Classifications: F16H,Y10T

Claim:
1. A cylinder assembly including: a cylinder; a nut and screw assembly housed within the cylinder; a thrust tube that extends axially from the nut and out a first end of the cylinder; a drive assembly mounted at a second end of the cylinder opposite the first end for rotating the screw to effect translation of the nut along the screw, thereby causing the thrust tube to axially extend or retract relative to the cylinder; and an anti-rotate feature for restricting rotation of the nut relative to the cylinder, wherein the anti-rotate feature includes a guide member coupled between the nut or the thrust tube and the cylinder, wherein one of the guide member or the cylinder includes a key, and wherein the other of the guide member or the cylinder includes a corresponding slot that receives the key, wherein the guide member is allowed limited canting movement relative to the nut or to the thrust tube to prevent binding of the nut and the cylinder relative to one another.