Remotely controlled, adjustable valve means for shock absorbers

Claim 1

A TELESCOPIC SHOCK DAMPER COMPRSSING A CYLINDER AND A PISTON MOUNTED ON A PISTON ROD, DIVIDING SAID CYLINDER INTO TWO PORTIONS AND HAVING PROVIDED FIRST PASSAGE MEANS IN SAID PISTON INTERCONNECTING THE TWO CYLINDER PORTIONS, SAID FIRST PASSAGE MEANS BEING SEALED BY A VALVE IN THE INOPERATIVE POSITION OF THE SHOCK DAMPER, SAID PISTON ROD BEING ADAPTED TO HAVE SECOND PASSAGE MEANS INTERCONNECTING THE TWO CYLINDER PORTIONS AND A CAPABLE BEING AT LEAST PARTIALLY OPENED OR CLOSED BY A MEMBER MOVABLE ALONG THE PISTON ROD, WHEREIN SAID VALVE IS FORMED BY A RIGID SPRING LOADED DISC, SAID MEMBER BEING DESIGNED AS A SPRING DISC FOR THE VALVE SPRING AND CONNECTED TO A SECOND PISTON DISPOSED OUTSIDE SAID PISTON ROD, THE POSITION OF SAID SECOND PISTON BEING ADJUSTABLE IN RESPONSE TO PRESSURE OF A MEDIUM FED FROM OUTSIDE THE SHOCK DAMPER, WHEREIN SAID PISTON ROD IS HOLLOW AND THE CONNECTION BWTWEEN SAID MEMBER AND SAID SECOND PISTON IS FORMED BY A ROD AXIALLY MOVEBLE IN THE HOLLOW OF SAID PISTON ROD, THE ATTACHMENT OF THE ROD MOVABLE IN THE HOLLOW PISTON ROD TO SAID MEMBER OR TO THE SECOND PISTON IS ADJUSTABLE, AND THE SECOND PISTON, IN THE INOPERATIVE POSITION, ACTS AS AN ABUTMENT SO THAT THE PRETENSION OF THE VALVE SPRING IS ADJUSTABLE AS CIRCUMSTANCES REQUIRE.