US 7,320,735 B2
Fan cleaning method and apparatus
Stanley J. Riske, Hanover, Mich. (US)
Assigned to Airmaster Fan Company, Jackson, Mich. (US)
Filed on Mar. 30, 2005, as Appl. No. 11/93,394.
Prior Publication US 2006/0218743 A1, Oct. 05, 2006
Int. Cl. B08B 7/00 (2006.01); A47L 5/24 (2006.01)
U.S. Cl. 134—7  [134/21; 451/36; 451/38; 451/39; 15/346] 6 Claims
OG exemplary drawing
 
1. A fan cleaning system, comprising:
a flexible bag for enclosing parts of a fan to be cleaned;
a source of compressed air for inflating the bag;
a container holding a supply of abrasive particulates;
a user-controlled nozzle for spraying the particulates against parts of the fan to be cleaned, the nozzle including a hand-held proximal portion with a flexible hose interconnected to the particulate container and a distal tube enabling a user to puncture the flexible bag to access the parts of the fan; and
a source of vacuum for collecting particulates used for cleaning.