초록 ▼

A blasting device for directed air with entrained blast media at a work surface includes a frame supporting a reciprocal valve, and an adjustable valve limit switch. A shaft is attached to the reciprocal valve at one end, and is supported via a bearing assembly at the other end with a blast nozzle m

A blasting device for directed air with entrained blast media at a work surface includes a frame supporting a reciprocal valve, and an adjustable valve limit switch. A shaft is attached to the reciprocal valve at one end, and is supported via a bearing assembly at the other end with a blast nozzle mounted thereto. Rotation of the reciprocal valve causes rotation of the interconnected blast nozzle such that air with entrained blast media exiting the blast nozzle travels along a path beneath the frame. The frame is supported on wheels, and is moved along a work surface by an operator. A vacuum port is positioned adjacent the work surface for removing spent blast media with entrained debris from beneath the blasting device. The handle may be rotated from end to end for ease of operation to assure that the user may move the blasting device in either the forward or rearward direction along a work surface.

대표청구항 ▼

A blasting device for directing air entrained blast media at a work surface, the blasting device comprising: a frame having a pair of end walls; a plurality of wheels supporting the frame defining a path of travel; inlet means for receiving air entrained blast media; a blast nozzle operatively conne

A blasting device for directing air entrained blast media at a work surface, the blasting device comprising: a frame having a pair of end walls; a plurality of wheels supporting the frame defining a path of travel; inlet means for receiving air entrained blast media; a blast nozzle operatively connected with the inlet means and carried by the frame; a handle attached to the frame; a pair of channels; a pair of downwardly extending end portions formed on the handle, each end portion being sized to be received within one channel whereby the handle may be positioned within one channel to extend over one end wall of the frame, and may be positioned within the other channel to extend over the other end wall of the frame; spring biasing means extending between the handle and the frame for biasing each end portion of the handle into a channel whereby said spring biasing means must be overcome to move the handle from one adjacent end wall to adjacent the other end wall; and a mounting pin carried by the frame for slidably mounting each end portion of the handle thereto.