A water amusement and hydration bicycle can include a bicycle frame and a container to contain water carried by the bicycle frame, the container having an outlet port and a multipurpose port. The bicycle can also include an amusement nozzle removably coupled to the outlet port. The bicycle can further include a drinking nozzle removably coupleable to the multipurpose port. The bicycle can still further include a water pump carried by the bicycle frame and operable to pump the water from the container through the outlet port for delivery to the amusement nozzle. In addition, the bicycle can include a gas pump operable to pressurize gas in the container to move the water from the container through the multipurpose port for delivery to the drinking nozzle when the drinking nozzle is coupled to the multipurpose port. The multipurpose port can be coupleable to a water source to provide water to the container.

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.

User-selectable volumes of a viscous condiment such as ketchup, mustard and mayonnaise are consistently dispensed from a pressurized vessel. The vessel is pressurized using a small air pump, a cylinder of compressed gas or an external gas source. Pressure in the vessel is kept constant by sensing the pressure using a MEMS pressure transducer. Condiment flows from the pressurized vessel into a flexible tube, which passes through an electrically-actuated pinch valve. For a given pressure in the vessel, the amount of condiment to be dispensed is determined by the time that the pinch valve is open. A processor monitors the pressure, actuation of a user interface and controls operation of the air pump.

A portable joint-compound texture sprayer that delivers a joint-compound to a primed drywall to produce an orange peel textured appearance. The portable joint compound texture sprayer comprises of a handle section that has an operating switch. The handle section receives a rechargeable battery. A reciprocal cycle linear actuator motor attaches to the handle section. A piston tube section attaches to the front side of the handle section, a rod of a piston is housed within the piston tube section and the rod of the piston connects to a reciprocal rod of the reciprocal cycle linear actuator motor. A canister connector section attaches to the piston tube section. The canister connector receives a canister, the canister connector section attaches to the piston tube section and to a spray nozzle section that has a spray nozzle. A tube system carries the joint-compound from the canister to the spray nozzle.

A pressurised sprayer, including a tank, the tank including a main body, a head region and a plunger for manually pressurising the tank. The pressurised sprayer also includes a compressed air inlet for automatically pressurising the tank with air from outside, a pressure relief valve, a compressed flow outlet, and a removable, external compressor module that is independent of the tank, the compressor module for its part including an air compressor and a battery for supplying the air compressor with electricity, the compressor module being connected to the compressed air inlet, the compressor module being secured to the sprayer. The pressurised sprayer where the compressed air inlet includes a valve stem, the valve stem for its part being a non-return valve, and the compressor module being connected to the valve stem via a hose having a connection head.