Start/stop control of conveying means

Details Start/stop control of conveying means Start/stop control of conveying means

1979-03-30

1980-12-02

Rolla, Joseph J.

Merchandising

Customer service

Store service

186 69, 198857, G61D 1500

Patent

active

042366046

ABSTRACT:
A start/stop control arrangement for material handling systems, particularly automated checkout systems in retail stores. From a beam sensing device at the delivery end of the incoming conveyor a control is derived not only for stopping the conveyor in response to the detection of the arrival at that end of a product but also a time control for automatically stopping the conveyor in response to no such product being detected by that device for a predetermined time. The arrangement may be incorporated in the amplifier unit which serves to amplify the output of the beam of the beam sensing device. Alternatively, and as shown herein, the arrangement may be implemented by a plug-in accessory module designed to be interposed between two cooperating plug-in modules--one of them mounting the above sensor amplifier--which provide for the first of these two controls only. Provisions are also made for double-using the arrangement for the start/stop control of the conveyor outgoing from the checkout stand.

REFERENCES:
patent: 1985563 (1934-12-01), Fitzgerald
patent: 3819012 (1974-06-01), Beck et al.
patent: 4138000 (1979-02-01), Hartup

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