Patent Number: 6,167,106

Title: Apparatus and method for counting a series of progressively moving articles

Abstract: A system for counting a series of progressively moving articles using one or more sidewardly positioned and angularly oriented ultrasonic transducers which bathe the articles with ultrasonic waves and receive echoes reflected backwardly therefrom. Distances to the articles are determined by measuring round-trip sonic travel times. Count adjustment signals are generated when articles pass through the fields of view of the transducers and are replaced by other articles at measurably different distances.

Inventors: Hemmelgarn; Gary Lee (Kettering, OH), Harris; David William (Miamisburg, OH), Zalusky; James Thomas (Beavercreek, OH)

Assignee: Hyde Park Electronics, Inc.

International Classification: G06M 1/00 (20060101); G06M 1/10 (20060101); G06M 7/04 (20060101); G06M 7/00 (20060101); G06M 011/00 ()

Expiration Date: 12/26/2017