Pneumatic device constituting suspension and damping means

Claim 1

A PNEUMATIC SHOCK ABSORBING DEVICE ADAPTED TO INTERCONNECT A PAIR OF MEMBERS MOVABLE WITH RESPECT TO EACH OTHER, COMPRISING, IN COMBINATION, A WORKING CYLINDER ADAPTED TO BE CONNECTED TO ONE OF SAID MEMBERS AND HAVING A CYLINDRICAL WALL WITH CLOSED ENDS; A ONE-WAY AIR SUPPLY CONNECTION FOR SUPPLYING COMPRESSED AIR FROM ITS SOURCE TO THE INTERIOR OF THE CYLINDER IN THE REGION OF ONE END THEREOF WHILE PREVENTING REVERSE FLOW THEREFROM; A ONE-WAY FLOW BYPASS MEANS FOR SAID CYLINDER HAVING ONE END PORTION COMMUNICATING WITH AN INTERMEDIATE PORTION OF THE INTERIOR OF THE CYLINDER SPACED FROM BOTH ENDS THEREOF AND ANOTHER OPPOSITE END PORTION COMMUNICATING WITH SAID INTERIOR IN THE REGION OF THE OPPOSITE END OF THE CYLINDER PERMITTING COMPRESSED AIR TO BYPASS FROM SAID ONE END PORTION TO SAID ANOTHER OPPOSITE END PORTION OF THE BYPASS MEANS ONLY; VENT OPENING MEANS ARRANGED IN SAID CYLINDRICAL WALL, BETWEEN THE END PORTIONS OF THE BY-PASS MEANS, FOR VENTING COMPRESSED AIR FROM SAID INTERMEDIATE PORTION OF SAID CYLINDER; AND A WORKING PISTON RECIPROCABLE IN SAID CYLINDER AND HAVING A PISTON ROD ADAPTED TO BE CONNECTED TO THE OTHER OF SAID MEMBERS AND EXTENDING THROUGH ONE END OF THE CYLINDER IN SEALING RELATIONSHIP THEREWITH.