Apparatus for determining the length of a column of tobacco or s

Details Apparatus for determining the length of a column of tobacco or s Apparatus for determining the length of a column of tobacco or s

1976-10-04

1979-01-09

Yasich, Daniel M.

Dispensing

Automatic control

Delivery from source controlled by quantity in discharging...

73304C, 222 64, B67D 508, G05D 900

Patent

active

041334540

ABSTRACT:
Apparatus for determining the height of a column of tobacco or similar particulate material in a downwardly extending channel, comprising a first capacitor, a second capacitor formed partly by an electrode plate extending above and below the desired average level of the top surface of the tobacco column in the channel during use, a third capacitor formed partly by an electrode plate lying permanently below the top surface of the tobacco column, and an electrical circuit which compares the value of the second capacitor with the sum of the values of the first and third capacitors and from which output signal can be obtained which reflects that comparison.

REFERENCES:
patent: 2311747 (1943-02-01), Gooch, Jr.
patent: 2541743 (1951-02-01), Brockman et al.
patent: 3253745 (1966-05-01), Skelton
patent: 3283577 (1966-11-01), Schuck
patent: 3376746 (1968-04-01), Roberts
patent: 3744314 (1973-07-01), Lenny
patent: 3821900 (1974-07-01), Preikschat
patent: 3939360 (1976-02-01), Jackson

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