Pneumatically operated soap dispenser - responds to signal form electronic sensor to dispense measured quantity of liquid soap

摘要

The pneumatically-operated soap dispenser (10) allows a measured quantity of liquid soap to be dispensed, in response to a command signal from an electronic sensor. The dispenser (10) is supplied from a liquid soap reservoir (18) which has an air inlet (20) and a soap outlet (22) at opposite ends. The air inlet is coupled to an air chamber and an air pressure source (34,38) delivery a constant air pressure. Pref. the air chamber lies at least partially outside the soap chamber (24) which is defined by a flexible container, designed to collapse, as the soap is dispensed. The dispensed quantity of soap is delivered via an electrical operating device. ADVANTAGE - Allows several dispensers to be supplied from common.