Material handling machine

Claim 1

A PNEUMATIC DOLLY COMPRISING AN UPRIGHT STANDARD, A CASTER WHEEL SUPPORTING SAID STANDARD AT EACH SIDE THEREOF, A GENERALLY L-SHAPED LOAD SUPPORT ASSEMBLY MOUNTED FORWARDLY OF SAID STANDARD, PIVOTABLE LINKAGE MEANS CONNECTING THE LOAD SUPPORT ASSEMBLY TO SAID STANDARD, THE HORIZONTAL LEG OF SAID LOAD SUPPORT ASSEMBLY INCLUDING AN UPPER LOAD PLATFORM CONNECTED TO THE VERTICAL LEG OF THE LOAD SUPPORT ASSEMBLY, A FLEXIBLE AIR PAD SECURED BENEATH SAID PLATFORM AND FORMING THEREWITH AN ANNULAR AIR PRESSURE CHAMBER AND FORMING WITH A DOLLY SUPPORTING SURFACE A PLENUM CHAMBER AND APERTURES IN SAID AIR PAD COMMUNICATING SAID AIR CHAMBER WITH SAID PLENUM CHAMBER, AND A SOURCE OF AIR PRESSURE SUPPLY CONNECTED TO SAID AIR CHAMBER FOR CAUSING AIR FLOW THROUGH SAID PLENUM CHAMBER TO THE ATMOSPHERE TO ELEVATE SLIGHTLY SAID L-SHAPED LOAD SUPPORT ASSEMBLY ON SAID LINKAGE MEANS