Abstract: A dust hood, useful for use in the compressed air and vacuum cleaning of a dusty apparatus placed therein, which is in the form of a flexible bag having a portion of its front face transparent with that front face also containing holes for a hose supplying compressed air and a hose supplying vacuum, respectively, for such cleaning.

Abstract: A refrigeration apparatus including an enclosure with an opening and condenser coils disposed within the enclosure, a cover plate dimensioned to fit over the opening, and with an air-cleaning blower apparatus placed over an orifice in the cover plate. The orifice in the cover plate is in communication with the interior of the enclosure holding the condenser coils, with the air-cleaning blower apparatus positioned in the incoming air stream to remove contaminants from the incoming air stream before the incoming air stream contacts the condenser coils. The cover plate may also have ports for introducing compressed air into the enclosure and for applying a vacuum to the enclosure, as well as an indicator for signaling the need for cleaning the condenser coils.

Abstract: A planar sealing panel member for cleaning the condenser coils of a cooling appliance. This member has at least one hole in its surface to accommodate a hose supplying compressed air. It also has affixation means on its surface so as to hold the sealing panel against the cooling appliance adjacent the opening(s) holding the condenser coils to form a substantially sealed enclosure along with the appliance structure within which the coils reside when cleaned using compressed air.

Abstract: A planar sealing panel member for cleaning the condenser coils of a cooling appliance. This member has at least one hole in its surface to accommodate a hose supplying compressed air. It also has affixation means on its surface so as to hold the sealing panel against the cooling appliance adjacent the opening(s) holding the condenser coils to form a substantially sealed enclosure along with the appliance structure within which the coils reside when cleaned using compressed air.

Abstract: The present invention is a support tray for use in the cleaning of an air conditioner unit that has a floor portion with a raised, generally centrally disposed support member, with a sloped upper surface, for supporting the air conditioner unit.

Abstract: The present invention is a support tray for use in the cleaning of an air conditioner unit that has a floor portion with a raised, generally centrally disposed support member, with a sloped upper surface, for supporting the air conditioner unit.