B - Operations – Transporting – 24 – C
Patent
B - Operations, Transporting
24
C
51/2
B24C 3/00 (2006.01)
Patent
CA 1134619
"Surface cleaning machine" Abstract A surface cleaning machine, of the kind in which abrasive grit is projected at high velocity against a surface to be cleaned. The machine has an upper hopper to receive grit carried by rebound and air flow from the zone being cleaned. Adjustable openings provide for controllable air exhaust upstream of the upper hopper which has a controllable outlet through which grit falls in the form of a curtain into a main, lower hopper. Air is drawn into the main hopper through a controllable inlet and flows through the curtain to remove dirt from the falling grit. The angle of the blast wheel can be varied, to vary the angle of impact of the projected grit on the surface in the cleaning zone.
379704
Lake Charles W.
Weber Herbert L.
Gowling Lafleur Henderson Llp
Worldwide Blast Cleaning Limited
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