Flat and elongated device for measuring particle sizes

Details Flat and elongated device for measuring particle sizes Flat and elongated device for measuring particle sizes

1999-01-20

2000-11-14

Patel, Harshad

Measuring and testing

Particle size

7386323, G01N 1500

Patent

active

061453900

ABSTRACT:
An apparatus for measuring dimensions of particles includes a base. At least three fixed posts are mounted to the base. A swinging arm is pivotally mounted to the base about a pivot point. The swinging arm has a first section mated with a first of the at least three fixed posts, a second arm mated with a second and a third of the at least three fixed posts, and a third section connecting the first and second sections. The first section has a first length and the second section has a second length. A first opening is formed when the first section and the first fixed post are not in contact. Second and third openings are formed when the second section does not contact the second and third fixed posts.

REFERENCES:
patent: 3678759 (1972-07-01), Schneeberger
patent: 3719089 (1973-03-01), Kelsall et al.
patent: 3739180 (1973-06-01), Carlson
patent: 5578771 (1996-11-01), Karhu

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