Shock absorber piston valving

Claim 1

IN COMBINATION IN A HYDRAULIC SHOCK ABSORBER CONSTRUCTION, A CYLINDER, A PISTON RECIPROCABLE IN SAID CYLINDER AND DIVIDING THE SAME INTO COMPRESSION AND REBOUND CHAMBERS, A PISTON ROD CARRYING THE PISTON AND EXTENDING THROUGH A ROD SEAL AT ONE END OF SAID CYLINDER, SAID ROD HAVING AN AXIAL BORE IN THE END THEREOF ADJACENT THE SAID PISTON, SAID PISTON HAVING AN AXIAL EXTENSION PROJECTING INTO SAID BORE IN SAID ROD ATTACHING SAID PISTON TO SAID ROD THEREBY IN ABUTTING RELATION TO THE END OF SAID ROD, SAID PISTON HAVING AN AXIAL BORE EXTENDING THROUGH THE SAME INCLUDING SAID EXTENSION THEREOF, ON THE SIDE THEREOF SHOULDER AROUND SAID BORE THEREIN ON THE SIDE THEREOF IN SAID COMPRESSION CHAMBER, A VALVE MEMBER SEATED ON SAID SHOULDER AND INCLUDING AN AXIALLY EXTENDING STEM PROJECTING THROUGH SAID BORE IN SAID PISTON PROJECTION AND INTO SAID AXIAL BORE IN SAID ROD, SAID ROD HAVING A TRANSVERSE BORE CONNECTING THE AXIAL BORE THEREOF WITH SAID REBOUND CHAMBER, AND SPRING MEANS BETWEEN THE AXIAL EXTENSION ON SAID PISTON AND THE END OF SAID STEM IN SAID AXIAL BORE IN SAID ROD URGING SAID VALVE MEMBER INTO SEATING ENGAGEMENT WITH SAID SHOULDER, SAID AXIAL EXTENSION ON SAID PISTON HAVING PASSAGE MEANS THEREIN CONNECTING THE AXIAL BORE IN THE SAID EXTENSION WITH THE AXIAL BORE IN SAID ROD TO PROVIDE THEREBY FREE FLOW OF HYDRAULIC FLUID THROUGH THE SAID TRANSVERSE BORES IN SAID ROD AND SAID PISTON EXTENSION WHEN SAID SPRING IS FULLY CLOSED BY FULL OPENING OF SAID VALVE.