Particle study device and sample metering means used therein

Details Particle study device and sample metering means used therein Particle study device and sample metering means used therein

1974-08-01

1976-02-17

Smith, Alfred E.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

Erosion

73422TC, 222217, G01N 2707, G01F 1300

Patent

active

039394093

ABSTRACT:
A particle study device includes a sample metering device having an input for receiving a sample of particulate matter, a drain for expelling the sample of particulate matter, an ejection port, and means for trapping a volume of sample within the device. The sample metering device also includes an ejecting device operative to eject a predetermined amount of the trapped sample through the ejecting port. A coupling device coupled to the sample metering device, a source of diluent and the sensing zone in the particle study device, combines the ejected predetermined amount of particulate matter and diluent to form a liquid suspension and couples the liquid suspension to the sensing zone.

REFERENCES:
patent: 80847 (1868-08-01), Wheeler
patent: 2877929 (1959-03-01), Ireland
patent: 3087438 (1963-04-01), Ciesielski
patent: 3115280 (1963-12-01), Battista
patent: 3653266 (1972-04-01), Holmes
patent: 3688191 (1972-08-01), Claps
patent: 3714565 (1973-01-01), Coulter et al.
patent: 3859012 (1975-01-01), Hogg

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