Can filling apparatus

Fluent material handling – with receiver or receiver coacting mea – Centrifugal filling

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Details

141 79, 141198, B65B 114, B65B 5706

Patent

active

040156451

ABSTRACT:
An optical apparatus for determining the level of the contents in a container using a reflected light beam that sweeps across two adjacent photocells while the container is being filled. The light beam is reflected from the surface of the contents in the container so that as the level of the contents varies the reflected light beam correspondingly travels from one photocell to the other. The photocells are electrically connected in opposed relationship and the differential output therefrom is arranged to trigger a relay when the level of the contents reaches a predetermined height.
The container is rotated about its vertical axis during filling so that the light reflected from the gradually raising upper surface of the contents is reflected from a rotating annulus of said surface thereby providing more effective detection of the level of a particulate or segmented product in the container.

REFERENCES:
patent: 3217760 (1965-11-01), Eisenberg
patent: 3267287 (1966-08-01), Berthelsen
patent: 3536925 (1970-10-01), Schmidt
patent: 3736057 (1973-05-01), Harvey

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