Measuring and testing – Volumetric content measuring
Patent
1978-11-13
1980-04-08
Petrakes, John
Measuring and testing
Volumetric content measuring
73437, G01F 1700
Patent
active
041966180
ABSTRACT:
A specific volume determining method and apparatus is disclosed having a piston sealably engaged in a container cylinder with a precision bore sight tube sealably mounted on the piston. Fluid is filled in the closed assembly to a predetermined level on a scale with the sight tube. The piston is withdrawn from the cylinder and the article to be measured inserted on a spring biased basket lifted up out of the fluid. The piston is replaced in the cylinder and locked tight, and the assembly vibrated to establish a new measuring level in the sight tube. Readings are taken in the sight tube with a miniature cross-linked polystyrene sphere floating on the surface of a liquid having a density between approximately 1.05 and 1.18 grams per cubic centimeter and containing a surface active agent and an anti-vaporization agent.
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