Abstract: A hand-held foaming apparatus includes a pressure vessel for containing a foamable liquid and an air space overlying the liquid. A hand pump is mounted within the vessel and sealably connected to a sealable opening at the top of the vessel. The pump comprises an external handle connected to a piston that extends substantially to the bottom of the vessel. Actuating the pump by operating the handle causes formation of foam from the foamable liquid in the overlying air space and discharge of the foam from a foam discharge outlet that comprises foam discharge control means and an interchangeable nozzle and is located on the vessel above the air space.

Abstract: A sprayer assembly for dispensing a fluid having suspended therein particulate matter of a particulate size includes a reservoir. The fluid to be sprayed is contained in the interior of the reservoir. The reservoir includes a first opening for receiving the fluid and a second opening for dispensing the fluid. A pump is received in the first opening and includes a pump handle disposed exterior to the reservoir and a pump mechanism disposed in the reservoir interior. The pump is operable to increase the pressure in the reservoir interior. A discharge tube has an outlet end fluidly connected to the reservoir second opening and an intake end disposed in the reservoir interior. A filter having a plurality of filter passages is disposed within the reservoir interior and is associated with the intake end of the discharge tube. The filter prevents particles larger than the particulate size from passing into the discharge tube.

Abstract: A hand-held foaming apparatus includes a pressure vessel for containing a foamable liquid and an air space overlying the liquid. A hand pump is mounted within the vessel and sealably connected to a sealable opening at the top of the vessel. The pump comprises an external handle connected to a piston that extends substantially to the bottom of the vessel. Actuating the pump by operating the handle causes formation of foam from the foamable liquid in the overlying air space and discharge of the foam from a foam discharge outlet that comprises foam discharge control means and is located on the vessel above the air space.

Abstract: A hand-held compressed air duster apparatus comprises a pressurizable vessel for containing a fine particulate dusting material. The vessel has an upper shoulder provided with a sealable top opening, in which a hand pump is mounted and sealably connected to the top opening. The pump comprises an external handle connected to a piston extending into the vessel. A dust discharge outlet is disposed on the shoulder of the vessel. Located within the vessel are two concentric tubes. A rotatable outer tube having a closed lower end that is provided with a pivot foot in contact with the bottom of the vessel extends upwards to an open upper end that is in fluid communication with the interior of the vessel. The rotatable outer tube comprises a dust feed agitator pin extending outwardly from the outer surface of the tube.