公开(公告)号：US3887042A

公开(公告)日：1975-06-03

申请号：US49063174

申请日：1974-07-22

Applicant: BENDIX CORP

Inventor： DITLINGER RICHARD J ,  KERR RICHARD W ,  MASSING LYLE E

IPC: C09D5/46 ,  F16D55/00 ,  F16D55/40 ,  F16D65/54 ,  F16D65/52

CPC classification number: F16D65/54 ,  F16D55/40 ,  F16D2055/0058

Abstract: A fluid pressure actuated piston is slidably carried in a fluid pressure actuated cylinder which, in turn, is slidably carried in a fixed carrier and engageable with a stop which stop is defined by a plurality of balls arranged in a column between a fixed retaining member and the cylinder and contained by a cylinder slidable relative thereto. The ball-containing cylinder is surrounded by the piston which is provided with axially spaced apart abutments one of which is engageable with the ballcontaining cylinder during an extension stroke of the piston thereby displacing the cylinder relative to the column of balls thereby releasing one or more of the balls from the column whereupon the fluid pressure actuated cylinder is urged axially toward the piston and into engagement with the remaining column of balls. Release of all of the balls results in engagement of the ball-containing cylinder with the fixed retaining member thereby extending the range of travel of the piston accordingly.