초록 ▼

A system for accurately mixing two or more liquids and for dispensing the mixture. The system is generally adapted for use in paint spraying operations. The flow of one of the components is accurately measured by means of a flow meter and the measured value provides a signal to control a valve which

A system for accurately mixing two or more liquids and for dispensing the mixture. The system is generally adapted for use in paint spraying operations. The flow of one of the components is accurately measured by means of a flow meter and the measured value provides a signal to control a valve which, in turn, controls the flow of the other liquid. Periodically the volume of the first mentioned liquid is measured for a given time period so as to make necessary adjustments in the flow meter-valve interconnection. An improved arrangement is provided for purging a mixing manifold immediately prior to the completion of the dispensing cycle so that none of the mixture will be wasted. The control arrangement includes improved air operated two and three-way valves.

대표청구항 ▼

A system for measuring the flow of fluid in a conduit of a system comprising a dynamic flow measuring device in fluid communication with said conduit for measuring the rate of flow of the fluid in the conduit, volume measuring means for measuring the volume of fluid, valve means for selectively dive

A system for measuring the flow of fluid in a conduit of a system comprising a dynamic flow measuring device in fluid communication with said conduit for measuring the rate of flow of the fluid in the conduit, volume measuring means for measuring the volume of fluid, valve means for selectively diverting at least a portion of the fluid flowing through the conduit into the volume measuring means and for returning the diverted fluid from the volume measuring means to the conduit for measuring the volume of fluid flowing through the conduit in a predetermined time interval, and means for comparing the two measured values.