B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
141/17
B08B 3/00 (2006.01) A47L 11/38 (2006.01) B05B 1/00 (2006.01)
Patent
CA 1306665
ABSTRACT OF THE DISCLOSURE A method and apparatus for cleaning the interior surfaces of buildings, especially the ceilings of office buildings, involves producing a fine mist of cleaning liquid which is sprayed onto said surfaces. This fine mist is produced by pumping a cleaning liquid from a container by means of a pump which leads to a delivery tube and which produces a pressure of at least 300 psi, the liquid being atomized by a nozzle having a breadth less than 0.020 inches. The amount of liquid passing through the pump is more than 5 times the amount passing through the nozzle, and the remainder of this liquid is returned by a bypass line to the container.
570679
Forrest Robin James
Ward Russell Craig
Ceiling Doctor International Inc.
Osler Hoskin & Harcourt Llp
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