Apparatus for automatically determining bulk specific gravity of

Details Apparatus for automatically determining bulk specific gravity of Apparatus for automatically determining bulk specific gravity of

1993-12-16

1995-06-13

Chilcot, Jr., Richard E.

Measuring and testing

Specific gravity or density of liquid or solid

With weighing feature

73434, 73435, 73436, 364558, 364567, G01N 902

Patent

active

054232163

ABSTRACT:
An apparatus which permits continuous automatic determination of the bulk specific gravity of a powdery sample and highly precise measurement thereof. The apparatus comprises a robot 3 transporting a container 2 filled with a powdery sample; a funnel 4 provided with a damper, which receives the powdery sample discharged from the container 2; a damper-driving unit 5a for pulling out and pushing the damper 5; a sample sensor 7 for detecting the powdery sample dropped through the funnel 4 provided with a damper; a constant volume receiver 6 for receiving dropped through the funnel 4 provided with a damper; a scraping bar 8 for sliding the upper face of the constant volume receiver 6; a scraping bar-driving unit 8a for reciprocating the scraping bar 8; a constant volume receiver-conveying robot 21 transporting the constant volume receiver 6; an electronic balance 22 which determines the weight the powdery sample in the constant volume receiver 6; and a cleaner 23 for aspirating the weighed powdery sample.

REFERENCES:
patent: 3619719 (1971-11-01), Waller et al.
patent: 4843579 (1989-06-01), Andrews et al.
patent: 5340262 (1994-08-01), Tsujimoto et al.

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