Patent ID: 6979373

Claim:
A wheel frame for supporting at least two wheels along a bottom surface of a vacuum inlet nozzle, said vacuum inlet nozzle having a generally rectangular inlet opening positionable against a surface to be vacuumed, a nozzle manifold body terminating in a vacuum hose attachment portion, said generally rectangular inlet opening having a generally rectangular peripheral edge including an outwardly directed flange along a bottom of said generally rectangular peripheral edge and said outwardly directed flange having a front edge, a right side edge, a left side edge and a back edge, said wheel frame comprising: a front arm shaped to fit over said front edge of said outwardly directed flange, said front arm having a bottom surface which contacts at least a portion of a top surface of said nozzle manifold body and said front arm having a right end and a left end; a right side arm shaped to fit over said right side edge of said outwardly directed flange and said right side arm having a right side front end attached to said right end of said front arm and a right side back end; a left side arm shaped to fit over said left side edge of said outwardly directed flange and said left side arm having a left side front end attached to said left end of said front arm and a left side back end; a back arm shaped to fit over said back edge of said outwardly directed flange, said back arm having a bottom surface which contacts at least a portion of said top surface of said nozzle manifold body and said back arm having a right end and a left end; a right wheel held by said wheel frame outwardly from said right side arm near the right side back end thereof, said right wheel having a wheel surface which extends below said wheel frame; a left wheel held by said wheel frame outwardly from said left side arm near the left side back end thereof, said left wheel having a wheel surface which extends below said wheel frame; and means for removably affixing said wheel frame over said outwardly directed flange of said vacuum inlet nozzle.