Patent attributes
A downhole tool and method for actuating a downhole tool, of which the downhole tool includes a housing having a housing port formed radially-therethrough, a shifter sleeve positioned within the housing, wherein the shifter sleeve has a port formed radially therethrough, and a drive sleeve positioned at least partially within an annulus between the housing and the shifter sleeve. Downward movement of the shifter sleeve causes the drive sleeve to move downward, and downward movement of the drive sleeve causes fluid to flow through the port in the shifter sleeve and into the annulus. The downhole tool also includes a filter coupled to the shifter sleeve and configured to prevent particles from flowing through the port in the shifter sleeve and into the annulus.
