US 2011/0079087 A1 · METHOD AND APPARATUS FOR DETERMINING VOID VOLUME FOR A PARTICULATE MATERIAL

Abstract

An apparatus for and method of measuring the compressed volume of a particulate material comprising a chamber for containing a particulate material which will be evaluated; a removable, fixed means at one end of said chamber to enclose said chamber and for containing said particulate material within said chamber; a compression means at the other end of said chamber which further encloses and contains said particulate material within said chamber and which provides a linear force on said particulate material so that one end of said particulate material is linearly movable and said compression means will compress the particulate material in said chamber; means to move said moveable piston away from a particulate material placed inside said chamber to decompress the particulate material in said chamber; means for measuring the distance between said movable piston and said fixed means so to measure the thickness of said compressed particulate material; and measuring means on the moveable piston of said chamber for measuring the applied force of said piston to said particulate material when said piston is compressing said particulate material.

Claims19

Dependent claims

An apparatus for measuring the compressed volume of a particulate material comprising

a chamber for containing a particulate material which will be evaluated;
removable, fixed means at one end of said chamber to enclose said chamber and for containing said particulate material within said chamber;
compression means at the other end of said chamber which further encloses and contains said particulate material within said chamber and which provides a linear force on said particulate material so that one end of said particulate material is linearly movable and said compression means will compress the particulate material in said chamber;
means to move said moveable piston away from a particulate material placed inside said chamber to decompress the particulate material in said chamber;
means for measuring the distance between said movable piston and said fixed means so to measure the thickness of said compressed particulate material;
and
measuring means on the moveable piston of said chamber for measuring the applied force of said piston to said particulate material when said piston is compressing said particulate material.

4 more elements

A method of measuring the void volume of a particulate additive material comprising

A. providing a cylindrical chamber for containing a particulate material which will be evaluated;
B. providing a fixed means at one end of said chamber for containing said particulate material;
C. providing a movable piston at the other end of said chamber which piston is linearly movable to compress the particulate material in said chamber;
D. providing a measuring means for measuring the force of compression of said particulate material when said piston is compressing said particulate material;
E. providing a measuring means for measuring the thickness of the compressed particulate material;
F. providing a measuring means for measuring the force of decompression of said particulate material after the release of said piston from the compressed state;
G. providing a particulate material for measurement;
H. compressing the particulate material to measure the force of compression of the particulate mass;
I. allowing the particulate material to decompress and measuring the decompression value;
J. measuring the thickness of the compressed and the decompressed material;
and
K. determining the void volume of said particulate material.

9 more elements

Dependencies are inferred from the claim text.

Method and apparatus for determining void volume for a particulate material

Life of this patent

Method and apparatus for determining void volume for a particulate material

Life of this patent

Abstract

Claims19