Foam dispensers having turbine air/liquid displacement pump combination

Exemplary embodiments of energy efficient foam pumps and dispensers are disclosed herein. An exemplary foam dispenser included a housing, a reservoir for holding a foamable liquid, a motor, a motor shaft, and a turbine air pump. The turbine air pump is connected to the motor shaft. A cam is also att...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Louis, Jeffrey S
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS COFFEE MILLS DOMESTIC ARTICLES OR APPLIANCES FURNITURE HUMAN NECESSITIES NOZZLES PERFORMING OPERATIONS SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR SPICE MILLS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL SUCTION CLEANERS IN GENERAL TOILET ACCESSORIES TRANSPORTING
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Beschreibung
Zusammenfassung:	Exemplary embodiments of energy efficient foam pumps and dispensers are disclosed herein. An exemplary foam dispenser included a housing, a reservoir for holding a foamable liquid, a motor, a motor shaft, and a turbine air pump. The turbine air pump is connected to the motor shaft. A cam is also attached to the motor shaft and is used for driving a liquid pump. Liquid from the liquid pump and air from the turbine air pump are mixed in a mixing chamber and dispensed through an outlet nozzle. The touch-free foam dispenser further includes a sensor for sensing an object, circuitry for receiving a signal from the sensor indicative of an object being present and circuitry for energizing the motor to dispense fluid in the form of a foam.