A filling device is provided, including a pump and a liquid transferring handle. The liquid transferring handle includes a grip portion, an inlet portion, an outlet portion which is communicated with the inlet portion, a channel which is communicated between the inlet portion and the outlet portion, and a window through which an interior of the channel is viewable. The inlet portion is detachably connected and communicated with the pump.

A hand-depressing vacuum pumping device includes a liquid container having a top connected to a guide cover, which has a first passage in communication with an interior receiving space of the liquid container, a float-based safety switch, a check valve, and an exposed tube connected to a top of a pump cylinder. The pump cylinder includes a one-way piston arranged therein and the one-way piston is connected to a piston rod and a pressing stem. The pump cylinder has a bottom end connected to a second passage of the guide cover. Depressing the pressing stem downward causes the one-way piston to expel air out and pulling the pressing stem upward causes air to flow from the interior of the liquid container through the one-way piston to the bottom of the pump cylinder so as to evacuate the receiving space of the container to generate vacuum that induces a suction force.

A tank holding a quantity of liquid releasably connects to a portable pump assembly through a connector to provide a portable sprayer. The tank connects to a feed line that supplies spray nozzle with the liquid. The connector combines a quick disconnect connector with a pressure relief valve. The portable pump assembly includes an electric pump, a switch assembly, and a check valve. The portable pump assembly directs gas through the check valve into the connector to increase the gas pressure in the tank and force the liquid in the tank to flow through the feed line and out the spray nozzle. The switch assembly turns off the electric pump when the gas pressure in the tank exceeds a predetermined limit while maintaining the flow of liquid through the spray nozzle.

A pressurizable fluid container apparatus, system and method of use.

A pressurized liquid delivery assembly has at least one liquid delivery module. Each module may include a housing and an associated compartment. The compartment may be located within the housing and may be moveable with respect to the housing to permit access to the compartment by a user. The compartment may define a space adapted to receive a replaceable pressurised receptacle containing liquid to be dispensed by the assembly. A liquid dispenser may be operatively associated with the receptacle and adapted to dispense liquid. The dispenser may include a conduit that may be extendable from a dispensing nozzle to a liquid receiving connector. The liquid receiving connector may be adapted to releasably connect to the liquid receptacle in use.

A flexible dispensing apparatus for coupling to pressurized fluid containers is described. it includes a flexible tube and a handle assembly. The handle assembly houses a second end of the tube. The handle assembly has a first side connected to a second side, a slide trigger, a roller coupled to the bottom of the slide trigger with a dowel pin, a spray nozzle assembly, a magnet reservoir, and a magnet. The first side has an inclined ramp that runs along a length of the first side and extends into the second side above and beyond a seam that is formed by the connection of the two sides. The tube is within a channel in the handle assembly formed between the inclined ramp and the roller. When the roller is rolled toward the end of the ramp it pinches the flexible tube near the top of the inclined ramp.

An automated chemical fluid applicator apparatus includes a container of fluid chemical having an integrated pressurization device and an outlet for releasing the fluid chemical. A portable, battery-powered fluid pumping apparatus is retrofitable to the container and has housing having at least one fluid inlet port and at least one fluid outlet port, wherein the at least one fluid inlet port is connectable to the outlet of the container. A liquid diaphragm pump is positioned within the housing. A battery is removably connectable to a battery terminal connector formed on the housing, wherein the battery powers the liquid diaphragm pump. A control switch is positioned on the housing and controls activation of the liquid diaphragm pump to expel the quantity of fluid chemical from the at least one fluid outlet port.

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.

A flexible dispensing apparatus for coupling to pressurized fluid containers is described. It includes a flexible tube and a handle assembly. The handle assembly houses a second end of the tube. The handle assembly has a first side connected to a second side, a slide trigger, a roller coupled to the bottom of the slide trigger with a dowel pin, a spray nozzle assembly, a magnet reservoir, and a magnet. The first side has an inclined ramp that runs along a length of the first side and extends into the second side above and beyond a seam that is formed by the connection of the two sides. The tube is within a channel in the handle assembly formed between the inclined ramp and the roller. When the roller is rolled toward the end of the ramp it pinches the flexible tube near the top of the inclined ramp.

An automated chemical fluid applicator apparatus includes a container of fluid chemical having an integrated pressurization device and an outlet for releasing the fluid chemical. A portable, battery-powered fluid pumping apparatus is retrofitable to the container and has housing having at least one fluid inlet port and at least one fluid outlet port, wherein the at least one fluid inlet port is connectable to the outlet of the container. A liquid diaphragm pump is positioned within the housing. A battery is removably connectable to a battery terminal connector formed on the housing, wherein the battery powers the liquid diaphragm pump. A control switch is positioned on the housing and controls activation of the liquid diaphragm pump to expel the quantity of fluid chemical from the at least one fluid outlet port.