Hydraulic valve push rod assembly

Claim 1

A SHOCK ABSORBING AND SELF ADJUSTING COMPRESSIVE FORCE TRANSMITTING DEVICE COMPRISING: (A) A RIGID CASING HAVING AN UPPER END AND A LOWER END, (B) SAID CASING HAVING AN INTERNAL WALL FORMING A PISTON RECEIVING CHAMBER EXTENDING THEREINTO FROM SAID UPPER END AND CLOSED AT THE BOTTOM THEREOF, (C) A PISTON IN SAID PISTON RECEIVING CHAMBER AND SLIDABLY COOPERATING WITH SAID WALL, (D) CLEARANCE BETWEEN SAID PISTON AND SAID WALL FORMING AN UPWARDLY EXTENDING FLUID CONDUIT, (E) SAID PISTON HAVING AN UPPER END AND A LOWER END AND AN INTERIOR INCLUDING UPPER AND LOWER CHAMBERS COMMUNICATING WITH EACH OTHER, SAID PISTON UPPER CHAMBER HAVING A TOP PORTION, (F) A CHECK VALVE SEAT MEMBER SECURED IN SAID PISTON LOWER CHAMBER AND HAVING A DOWNWARDLY FACING VALVE SEAT CAVITY AND A PASSAGEWAY OF GREATER CROSS-SECTIONAL AREA THAN SAID FLUID CONDUIT AND COMMUNICATING BETWEEN SAID VALVE SEAT CAVITY AND SAID PISTON UPPER CHAMBER, (G) MEANS PREVENTING FLUID FLOW BETWEEN SAID PISTON UPPER AND LOWER CHAMBERS EXCEPT THROUGH SAID SEAT MEMBER PASSAGEWAY,