Apparatus for obtaining a random sample

Details Apparatus for obtaining a random sample Apparatus for obtaining a random sample

1984-03-28

1985-09-17

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

Conveyor coacting

G01N 110, G01N 100

Patent

active

045412901

ABSTRACT:
Apparatus for obtaining a sample of objects is provided. The objects are carried by a first conveyor belt and are sampled by striking a lower surface of the conveyor belt to cause some of the objects to be thrown upwardly over a barrier into a receptacle. The objects from the receptacle are carried by a second conveyor which has cleats for carrying objects to a detector one-by-one. The detector operates a deflecting plate to obtain a second sample for inspection. Objects which are not deflected by the plate are returned to the first conveyor belt, while those which are deflected enter a chute for collection. The apparatus for delivering an impact to the conveyor belt preferably comprises a bell crank which strikes the conveyor belt 4 in response to a hydraulic actuator.

REFERENCES:
patent: 3111034 (1963-11-01), Hostetler
patent: 3545280 (1970-12-01), Gosney
patent: 4267930 (1981-05-01), Melkonian et al.

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