Abstract: A liquid dispenser includes a container having an opening for receiving a liquid, and a dispenser subassembly having an outlet and a closing member cooperating with the outlet, the closing member being movable between a first closed position whereby the closing member engages the container opening and a second open position whereby the closing member is remote from the container opening. At least part of the dispensing subassembly is preformed on the container and the remaining part of the dispenser subassembly is connectable therewith.

Abstract: A liquid dispenser includes a container having an opening for receiving a liquid, and a dispenser subassembly having an outlet and a closing member cooperating with the outlet, the closing member being movable between a first closed position whereby the closing member engages the container opening and a second open position whereby the closing member is remote from the container opening. At least part of the dispensing subassembly is preformed on the container and the remaining part of the dispenser subassembly is connectable therewith.

Abstract: A precompression system for a liquid dispenser prevents liquid from being discharged from the dispenser until a predetermined pressure level has been attained within the dispenser. The liquid dispenser preferably has a liquid inlet and a liquid outlet for discharging the liquid. The precompression system includes a pump chamber having a piston movable in the pump chamber for drawing liquid through the inlet and discharging the liquid through the outlet. The precompression system also includes a valve chamber having a spring valve disposed between the pump chamber and the outlet and being operable to allow liquid in the pump chamber to reach the outlet only after a predetermined pressure is established in the pump chamber and to stop liquid from reaching the outlet when the pressure in the pump chamber falls below the predetermined pressure.

Abstract: A liquid dispenser includes a dispenser subassembly having an inlet, an outlet, and a pump in fluid communication with the inlet and the outlet, the pump being movable between a first position and a second position. The liquid dispenser also has a container including an opening for receiving a liquid and an actuating element connected thereto. The actuating element is engagable with the dispenser subassembly when the container and the dispenser subassembly are assembled together. Engagement of the actuating element with the dispenser subassembly is a prerequisite for operating the pump and dispensing the liquid from the dispenser. Also disclosed is a method of priming a liquid dispenser during final assembly thereof whereby the liquid dispenser will be immediately ready to discharge a liquid without further priming, such as is required with conventional liquid dispensers.