Condiment dispensing apparatus

摘要

This invention provides a condiment dispensing apparatus of economically and effectively dispensing condiment by controlling condiment pump activation and opening and closing of the dispensing outlet without requiring electronic circuitry. The apparatus employs pneumatic devices to open and close the dispensing outlet and to drive the condiment pump and a mechanical mechanism to synchronize pump activation and opening and closing of the dispensing outlet. In a specific embodiment, a pneumatically driven valve is coupled to the pump for activating the pump after it is moved to at least partly open the dispensing outlet during a valve opening step and for deactivating the pump after it is moved to partly close the dispensing outlet during a valve closure step. The delay in pump activation during the valve opening step and the lead in pump deactivation during the valve closure step avoid excessive pressure buildup to ensure smooth operation of the apparatus in dispensing the condiment in a controlled manner.