Method and apparatus for measuring envelope and bulk densities

Measuring and testing – Specific gravity or density of liquid or solid

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73433, 73149, G01N 900, G01F 1700

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active

057602930

ABSTRACT:
A compaction device for determining envelope and bulk densities of sample materials. The device uses a rotating sample cylinder and a plunger positioned within the cylinder. The force on the plunger is measured as the plunger advances in the cylinder. The position of the plunger at which a predetermined level of force is applied thereto is determined. Envelope density is determined from the difference in the advance of the plunger when the cylinder is partially filled with a dry flowing medium and when a sample material such as a rigid object is added into the medium. Bulk density is determined from the difference in the advance of the plunger when the cylinder is empty and when the cylinder contains a sample material such as a powder.

REFERENCES:
patent: 2373026 (1945-04-01), Guyer et al.
patent: 2667782 (1954-02-01), Shea
patent: 2706908 (1955-04-01), MacRoberts
patent: 3060724 (1962-10-01), Smith et al.
patent: 3129585 (1964-04-01), Hamilton
patent: 3246504 (1966-04-01), Halff et al.
patent: 3309912 (1967-03-01), Boland et al.
patent: 3741011 (1973-06-01), Seybold
patent: 4112738 (1978-09-01), Turner
patent: 4154098 (1979-05-01), Pelletier
patent: 4196618 (1980-04-01), Patterson
patent: 4224821 (1980-09-01), Taylor et al.
patent: 4283148 (1981-08-01), Peterson
patent: 4361052 (1982-11-01), Nicol et al.
patent: 4699002 (1987-10-01), Rockley
patent: 5323655 (1994-06-01), Eagan et al.
Chern, M.Y. et al., "Small, inexpensive apparatus for the determination of the denisty of powdered materials" Rev. Sci. Instrum., vol. 61, pp. 1733-1735 (Jun. 1990).
Patent Abstracts of Japan, vol. 011, No. 015 (P-536), 16 Jan. 1987.
B. Buczek "Measurement of the Apparent Density of Porous Particles by a Powder Characteristics Tester," Proceedings of Second World Congress Particle Technology, Sep. 19-22, 1990 Kyoto, Japan, pp. 103-109.
Brochure entitled "A Tool for Solid Body Open Porosity Measurement," by Tenakon Research Industrial Corp.
ASTM Designation: C 830-83 "Standard Test Methods for Apparent Porosity, Liquid Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Vacuum Pressure."
ASTM Designation: C 493-86 "Standard Test Methods for Bulk Density and Porosity of Granular Refractory Materials by Mercury Displacement."
ASTM Designation: C 20-87 "Standard Test Methods for Apparent Porosity, Water Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Boiling Water."
ASTM Designation: C 914-89 "Standard Test Method for Bulk Density and Volume of Solid Refractories by Wax Immersion."
ASTM Designation: B 527-81 "Standard Test Method for Tap Density of Powders of Refractory Metals and Compounds by Tap-Pak Volumeter".

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