Abstract: Air compressor systems that are configured to output compressed air. Each system includes a cabinet and at least one air compressor mounted at least partially in the cabinet. The air compressor includes a drive motor with a cooling air inlet through which cooling air can be input for cooling the drive motor. The cooling air inlet is directly fluidly connected to a cooling air opening of the cabinet so that the cooling air for the drive motor is drawn into the drive motor directly from the ambient environment instead of being drawn in from the interior space of the cabinet. In addition, the system includes an exhaust fan on the cabinet that vents the interior space of the cabinet to the ambient environment. During operation of the air compressor, a negative cabinet pressure is created in the interior space where the pressure is less than ambient pressure.

Abstract: An improved guard for a pump propeller is described herein. The guard includes a hub that in use surrounds a drive shaft of a drive motor unit that drives the propeller. The vanes define a propeller receiving area in which the propeller is received allowing the propeller to rotate relative to the vanes, while portions of the vanes radially surround the propeller. The guard is fixed in position about the propeller to protect the propeller from debris and to prevent human contact with the rotating propeller. The guard is designed to shed weeds and other debris, and prevent weeds and other debris from becoming entangled on the guard and with the propeller.

Abstract: A liquid aeration system includes an air compressor system and a diffuser. The air compressor system includes an air intake manifold, an air compressor, and a compressor inlet line. The compressor inlet line fluidly connects the air intake manifold and the suction inlet of the air compressor. The compressor suctions air from the air intake manifold through at least the suction inlet hose. The compressor compresses the air into compressed air that is supplied to the diffuser.

Abstract: A floating fountain apparatus includes a buoyant annular float having a central opening. A pump is secured to a lower side of the float. The pump has a propeller positioned to direct water through the central opening. A pump housing is positioned to receive water flow from the propeller and direct the water flow to a nozzle outlet. A lighting assembly is positioned within the central opening. The pump housing includes an upper pump housing and a lower pump housing. The lower pump housing has a water inlet and a hollow cylindrical outlet. The upper pump housing is slidably received within the cylindrical outlet and has a flow diverting surface to direct flow against an inner surface of the cylindrical outlet to create an annular flow of water. A plurality of vanes extends between the outer and inner members to divide a spacing between the members into a plurality of individual fluid flow pathways.