Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material
Patent
1981-05-04
1983-05-24
McCarthy, Edward J.
Advancing material of indeterminate length
With material-responsive control means
To regulate longitudinal movement of material
242 7551, B65H 2322, B65H 5900
Patent
active
043846653
ABSTRACT:
A stock loop controller is disclosed which measures the round trip time of an ultrasonic signal transmitted to the stock loop and its return echo to generate a digital signal proportional to such time. The digital signal is converted to an analog signal and compared with a voltage reference across an amplifier. The resultant difference signal is used to control a motor operating the stock loop "take-up" or "feed-out" mechanism.
REFERENCES:
patent: 2147467 (1939-02-01), Stephenson
patent: 2472863 (1949-06-01), Socke
patent: 2888259 (1959-05-01), Taylor
patent: 2907565 (1959-10-01), Sauter
patent: 3047198 (1962-07-01), Long
patent: 3108032 (1960-05-01), Carlson
patent: 3156397 (1964-11-01), Davies
patent: 3223964 (1965-12-01), Stadlin
patent: 3225988 (1965-12-01), Drenning
patent: 3240411 (1966-03-01), Zarleng
patent: 3342284 (1966-01-01), Baird
patent: 3550828 (1970-12-01), Watson
patent: 3637123 (1972-01-01), Jones, Jr.
patent: 3721376 (1973-03-01), Christian et al.
patent: 3771114 (1973-11-01), Buchan et al.
patent: 3811304 (1974-05-01), Gorker
patent: 3890547 (1975-06-01), Kock
patent: 4057185 (1977-11-01), Slama et al.
patent: 4200378 (1980-04-01), Shenk
"Ultrasonic Ranging System", (Undated) by Polaroid Corporation.
McCarthy Edward J.
Waddington Electric, Inc.
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