Hydraulic shock absorber

Claim 1

A FLUID SHOCK ABSORBER UNIT HAVING A RECIPROCATABLE TUBULAR PISTON ROD AND A TUBULAR METERING ROD TELESCOPICALLY RECEIVED WITHIN SAID PISTON ROD; A VALVE PISTON SECURED TO THE END OF SAID TUBULAR PISTON ROD; SAID PISTON DIVIDING SAID UNIT INTO FIRST AND SECOND PRESSURE CHAMBERS; SAID PISTON HAVING A METERING ORIFICE SURROUNDING SAID METERING ROD AND DEFINING A FIRST ANNULAR PORT ADAPTED TO RESTRICT FLUID FLOW THERETHROUGH; A PASSAGE IN SAID TUBULAR PISTON ROD PROVIDING COMMUNICATION BETWEEN ONE OF SAID CHAMBERS, THE INTERIOR OF SAID TUBULAR PISTON ROD AND SAID FIRST ANNULAR PORT; AN ANNULAR RESERVOIR CHAMBER SURROUNDING ONE OF SAID PRESSURE CHAMBERS; A RADIAL PASSAGE IN SAID METERING ROD COMMUNICATING WITH SAID OTHER CHAMBER, THE INTERIOR OF SAID METERING ROD, AND SAID RESERVOIR; SAID METERING ROD HAVING A DOUBLE TAPER AND BEING OF LESS CROSS SECTION SIZE AT ITS MID PORTION THAN AT ITS END PORTIONS; CONTROL PORTS IN SAID VALVE PISTON ADAPTED TO RESTRICT FLUID FLOW THERETHROUGH; A RESILIENTLY POSITONED STOP MEMBER SLIDEABLY DISPOSED IN SAID UNIT ABOUT SAID METERING ROD; SAID STOP MEMBER BEING ADAPTED TO SEAL SAID PORTS UPON CONTACT BY SAID VALVE PISTON; SAID STOP MEMBER HAVING A METERING ORIFICE SURROUNDING SAID METERING ROD AND DEFINING A SECOND ANNULAR PORT ADAPTED TO RESTRICT FLUID FLOW THERETHROUGH.