A spray tank backpack apparatus for carrying spray tanks during use includes a frame having a frame left side, a frame right side, a frame top side, and a plurality of frame braces extending between the frame left side and the frame right side. A tank shelf is coupled to the frame and includes a shelf perimeter and a plurality of shelf braces. The shelf perimeter is coupled adjacent a bottom end of each of the frame left side and the frame right side. The plurality of shelf braces supports an industrial pressurized tank. A pair of hose brackets is coupled to the frame and is configured to receive a hose of the industrial pressurized tank. A pair of shoulder straps is coupled to the frame to be worn like a backpack.

A portable compressible shower unit is a showering device that is easy to carry around and can maintain water at a specific temperature for longer hours. In order to accomplish this, the device includes a carrier bag with straps, that provide the user the leverage to carry the shower unit and carry it around like a backpack. The device further includes an insulated water bag that can maintain the temperature of the water for long hours. Further, a battery unit included within the device helps power a pump to dispense the water from the bag to a shower head. An expandable zipper lid allows the water bag to expand and store more water. Furthermore, the device includes storage pockets to allow the user to carry and store away the hose and shower head as well as other accessories that the user may want to carry along.

A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston disposed within a cylinder. The piston is configured to pressurize at least one pumping chamber. A motor is coupled to the housing and connected to the reciprocating piston fluid pump to actuate the piston. A wobble assembly connects the motor to the piston of the reciprocating piston fluid pump. A spray tip connected to an outlet of the at least one pumping chamber.

Discharge ports of liquid floor finish applicators are known to clog if proper steps are not taken immediately after use. Complicating this clogging problem are the facts that floor finishes are formulated to dry quickly when exposed to air and applicator cleaning creates waste and takes considerable time and effort. Accordingly, applicant's invention addresses the problem of clogging by using a liquid reservoir to enclose the applicator's discharge port thus preventing it from clogging when not in use. To illustrate applicant's invention, a backpack floor finish applicator system dispenses liquid floor finish through a hose and a pump that forces the finish through a nozzle onto the floor. The invention uses a non-contact switch that activates a light which alerts the operator when the nozzle is exposed to air which will cause clogging thereby reminding the operator to position the nozzle within the liquid reservoir when not in use.

Sprayer devices and related methods. The sprayer devices can be of a type that may be carried or worn on the back of a user. Each sprayer device has a tank, a spray outlet (e.g., a spray nozzle or spray wand) and either a manual or power pump. The sprayers may also incorporate one or more of the following: a) a brace member for deterring bending or deformation of a bottom bracket on the sprayer, b) a pump axle with redundant rotation-limiting stop members useable for either right-handed or left-handed operation, c) system for selective and/or controlled agitation or non-agitation of liquid within the sprayer tank and/or d) an information card holding niche with removable information card.

An internal pump backpack sprayer system includes a first tank, a second tank and a pump unit. The first tank includes a tank housing for holding a fluid. The second tank is received within the first tank and receives a pressurized fluid. The pump unit has a cylinder housing with first and second inlets and first and second outlets, a piston within a cylinder and a pressure discharge assembly. When the piston moves in an up-stroke, fluid is drawn from the first tank through the first inlet while all or some pressurized fluid is discharged through the pressure discharge assembly with a remainder being discharged to the second tank through the second outlet. When the piston moves in a down-stroke, fluid is drawn from the first tank through the second inlet while pressurized fluid is discharged to the second tank through the first outlet.

A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston disposed within a cylinder. The piston is configured to pressurize at least one pumping chamber. A motor is coupled to the housing and connected to the reciprocating piston fluid pump to actuate the piston. A wobble assembly connects the motor to the piston of the reciprocating piston fluid pump. A spray tip connected to an outlet of the at least one pumping chamber.

An electric power sprayer has a battery system with a battery interface and a voltage transformer. The battery interface may receive a plurality of different batteries having different voltages. The voltage transformer is operatively-connected to the battery interface and converts the different voltages into a standard voltage.

The present invention relates to the application of liquid active substances. The subject matter of the present invention is a system, a method and a computer program product for the application of an active substance concentrate from a replaceable cartridge in a diluted form onto a target object with the aid of a portable spray device, wherein important parameters of the spray process are exchanged between the cartridge and/or the spray device and/or an external computer system.

A pneumatic paint brush feeder apparatus for supplying paint on demand to a brush includes a paint container having a top side with a fill aperture extending through to a reservoir. A lid seals and alternatively unseals the fill aperture. A battery powered compressor is coupled to the paint container and an air line extends from a compressor tank into an intake aperture of the paint container to pressurize the reservoir. A hose extends through an outlet aperture of the paint container to deliver the paint to a distal end of the hose. A brush is coupled to the hose and has a delivery tube extending from a bottom end of a handle, through a head and into a plurality of bristles to deliver paint into the bristles. A button is coupled to the brush to prevent, or alternatively allow, the flow of paint to the bristles.