Hydro-pneumatic shock absorber

Claim 1

A HYDRO-PNEUMATIC TELESCOPIC SHOCK ABSORBER, ESPECIALLY FOR MOTOR VEHICLES, COMPRISING: SHOCK ABSORBER MEANS INCLUDING LIQUID-CONTAINING CYLINDER MEANS, PISTON MEANS WITHIN SAID CYLINDER MEANS, AND CONNECTING MEANS FOR THE SHOCK ABSORBER MEANS AND SIMULTANEOUSLY CONSTRUCTED AS EQUALIZATION CHAMBER MEANS, SAID CONNECTING MEANS EXTENDING BEYOND THE OUTER CONTOUR OF THE STOCK ABSORBER MEANS, A COIL SPRING SURROUNDING SAID CYLINDER AND PISTON MEANS, AND SAID EQUALIZATION CHAMBER MEANS SERVING SIMULTANEOUSLY AS SPRING SEAT FOR SAID COIL SPRING MEANS FORMING A SECOND SPRING SEAT AND SAID EQUALIZATION CHAMBER MEANS INCLUDING TWO RELATIVELY SHALLOW, HOLLOW SHELL-LIKE MEANS, AND FLEXIBLE MEMBRANE MEANS CLAMPED BETWEEN SAID SHELLLIKE MEANS AND SEPASRATING A GAS SPACE FROM THE LIQUID SPACE WITHIN SAID EQUALIZATION CHAMBER MEANS, ONE OF SAID TWO HOLLOW SHELL-LIKE MEANS DEFINING WALL MEANS FOR SAID GAS SPACE, SAID WALL MEANS HAVING AN INTERIOR CENTRAL PROTUBERANCE PROJECTING IN THE DIRECTION OF SAID MEMBRANE MEANS, COMMUNICATING MEANS BETWEEN SAID CYLINDER MEANS AND SAID LIQUID SPACE, SAID MEMBRANE MEANS BEING ADAPTED TO ABUT SAID CENTRAL PROTUBERANCE IN RESPONSE TO PRESSURE OF LIQUID FROM SAID CYLINDER MEANS.