Aec, Inc.

Raymond J Schaeffer

Daniel A Rubino

Joseph H Dziedzic

Joseph H Dziedzic, Jr

A sensor switch for controlling the fill level of granular material filled into a container in which the sensor may either be mounted adjacent a fill path of the container or at a separate location. The sensor includes an elongated arm pivotally attached to a bracket for operating a switch located within the bracket. The sensor may be adjustably mounted on an elongated, remote support member mounted either to the side walls or to the top of the container. The sensor may have three operating positions including an initial position, an actuated position in which the arm actuates the switch, and a third position in which the arm releases the switch.

Fill level sensor for granular material

A pneumatic pickup probe or wand, for picking up a dry flowable material from a container and introducing that material into a vacuum conveyor system, constitutes an elongated unitary pickup tube having a plurality of axially displaced air control holes near the vacuum conduit connection end of the tube; the material entry end of the tube is cut off at an acute angle (preferably about 45.degree.), has a narrow, elongated flow modulation slot of about three inches (7.5 cm) axial length extending toward the hose connection end of the tube, and has an anti-closing spacer to preclude blockage of the material entry opening.

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Lake Zurich, IL, United States of America

Raymond J Schaeffer