Alternately inflatable supporting system for the human body

Claim 1

A CIRULATORY-AID HUMAN BODY SUPPORTING SYSTEM COMPRISING A CUSHION HAVING AT LEAST TWO GROUPS OF INFLATABLE AND DEFLATABLE CELLS WITH THE CELLS OF EACH GROUP BEING IN SUFFICIENT NUMBER AND ARRANGED SO THAT THEY ARE DISTRIBUTED THROUGHOUT THE OVERALL AREA OF THE CUSHION AND WITH THE CELLS OF THE DIFFERENT GROUPS ALTERNATING WITH EACH OTHER, A PNEUMATIC PRESSURE UNIT FOR SUPPLYING PRESSURE TO THE VARIOUS CELLS, AND CONTROL MEANS CONNECTED BETWEEN SAID UNIT AND SAID GROUPS OF CELLS FOR SUPPLYING PRESSURE TO ONE GROUP OF CELLS TO FULLY INFLATE THOSE CELLS AND THEN TO EXHUAST PRESSURE FROM THE OTHER GROUP OF CELLS TO DELFATE THOSE CELLS TO PROVIDE FOR SUPPORT OF THE BODY SUCCESSIVELY BY THE DIFFERENT GROUPS OF CELLS, SAID CELLS OF THE CUSHION BEING ELONGATED AND EXTENDING IN THE GENERAL DIRECTION OF THE BODY ADAPTED TO BE POSITIONED THEREON SO AS TO AID IN CIRCULATION OF BLOOD IN THE BODY, THE CELLS OF EACH GROUP BEING SPACED LATERALLY AND THE CELLS OF THE ONE GROUP ALTERNATING LATERALLY WITH THE CELLS OF THE OTHER GROUP, SAID CONTROL MEANS COMPRISING A PLURALITY OF FLOW CONTROL VALVES, CAM MEANS FOR OPERATING SAID VALVES, AND MEANS FOR ACTUATING SAID CAM MEANS AT PREDETERMINED INTERVALS, SAID CAM MEANS COMPRISING A CAM SHAFT HAVING A PLURALITY OF CAMS AXIALLY SPACED THEREALONG FOR COOPERATING WITH A CORRESPONDING NUMBER OF VALVES, SAID ACTUATING MEANS COMPRISING MEANS FOR ROTATING SAID SHAFT AT PREDETERMINED INTERVALS AND INCLUDING A RECIPROCABLE ACTUATOR HAVING FINGERS, PROJECTIONS ON SAID SHAFT IN COOPERATIVE RELATIONSHIP WITH SAID FINGERS AND ADAPTED TO BE ENGAGED BY SAID FINGERS TO ROTATE IT, A BELLOWS CONNECTED TO SAID ACTUATOR FOR CONTROLLING RECIPROCATION THEREOF, AND MEANS FOR COMPRESSING AND EXPANDING THE BELLOWS TO RECIPROCATE THE ACTUATOR.