Spring mounted bumper

Claim 1

FOR ATTACHMENT TO THE LONGITUDINAL FRAME MEMBERS OF AN AUTOMOBILE, A BUMPER STRUCTURE CONSISTING OF A STRUCTURAL FRAME CROSS MEMBER ATTACHED TO THE ENDS OF SAID LONGITUDINAL FRAME MEMBERS, A BUMPER BASE BAR DISPOSED FORWARDLY OF SAID CROSS MEMBER, AND ATTACHED TO SAID CROSS MEMBER EXCLUSIVELY BY AT LEAST TWO COILED SPRING STRUCTURES DISPOSED BETWEEN AND RIGIDLY ATTACHED TO SAID CROSS MEMBER AND TO SAID BUMPER BASE BAR, EACH OF SAID COILED SPRING STRUCTURES CONSISTING OF A METALLIC CONICAL COILED SPRING, AND A COMPRESSIBLE CORE OF RESILIENT RUBBERLIKE SPONGE MATERIAL, SAID CORE COMPLETELY FILLING THE INTERIOR SPACE OF THE METAL COILED SPRING AND ABUTTING THE FACES OF SAID CROSS MEMBER AND SAID BUMPER BASE BAR, EACH OF SAID COILED SPRINGS BEING RIGIDLY ATTACHED AT ITS END COILS RESPECTIVELY TO THE FORWARD FACE OF SAID CROSS MEMBER AND TO THE REARWARD FACE OF SAID BUMPER BASE BAR, SAID SPRINGS CONSTITUTING THE SOLE ATTACHMENT MEANS OF SAID BUMPER BASE BAR TO SAID CROSS MEMBER, AND ONE OR MORE BLOCKS OF SPONGE RUBBER DISPOSED ADJACENT SAID COILED SPRINGS BETWEEN SAID FRAME CROSS MEMBER AND SAID BUMPER BASE BAR, SAID BLOCKS BEING HELD ONLY AT THEIR CONTACTING SURFACES WITH SAID MEMBER AND SAID BAR.