Power sweeper improvements

Claim 1

A SWEEPING MACHINE COMPRISING A MOBILE, POWERED STEERABLE VEHICLE, A SWEEPING ENCLOSURE ON SAID VEHICLE WHICH EXTENDS SUBSTANTIALLY TO THE LEVEL OF THE SURFACE OVER WHICH THE VEHICLE MOVES AND IS CLOSED EXCEPT FOR A BOTTOM BRUSH OPENING AND AN EJECTION OPENING THROUGH WHICH SWEPT MATERIAL MAY BE PROJECTED AND AIR MAY FLOW, A SUCTION DEVICE ON THE VEHICLE HAVING A SUCTION LINE EXTENDING TO A SUCTION PORT ON THE SURFACE OF THE VEHICLE, MOVABLE SUPPORT MEMBERS ON THE VEHICLE FOR SUPPORTING A SEPARATE ENTITY, A SEPARATE ENTITY COMPRISING A CLOSED HOUSING INCLUDING A SWEPT DEBRIS COLLECTION PAN PORTION, SAID FILTER PORTION COMMUNICATING WITH SAID PAN PORTION, SAID PAN PORTION HAVING A FILLING OPENING LEADING INTO IT AND SAID FILTER PORTION HAVING AN EXHAUST OPENING LEADING OUT OF IT ADJACENT THE TOP THEREOF, SUPPORT PARTS ON SAID ENTITY TO BE ENGAGEABLE BY THE SUPPORT MEMBERS ON THE MOBILE VEHICLE FOR SUPPORTING AND CARRYING THE ENTITY ON THE VEHICLE, THE FILLING OPENING OF THE ENTITY BEING LOCATED AS TO FIT AGAINST AND COMMUNICATE WITH SAID EJECTION OPENING WHEN THE ENTITY IS CARRIED BY THE SUPPORT MEMBERS, THE SUPPORT PARTS BEING LOCATED ON SAID ENTITY SO THAT THE ENTITY TIPS FREELY TO A POSITION WHEREIN THE EXHAUST OPENING ON THE ENTITY COMMUNICATE WITH THE SAID SUCTION PORT WHEN THE ENTITY IS CARRIED BY SAID SUPPORT MEMBERS, AND STOP MEMBERS MOUNTED ON SAID SUPPORT MEMBERS POSITIONED TO ENGAGE PORTIONS OF SAID ENTITY TO LIMIT THE TIPPING ACTION OF SAID ENTITY TOWARD SAID SUCTION PORT, SAID ENTITY BEING FREE TO MOVE TO A POSITION WHEREIN THE EXHAUST OPENING DOES NOT FIT AGAINST THE SAID SUCTION PORT.