Method and apparatus for mixing a high-viscosity material...

Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Having discontinuous gas or vapor phase – e.g. – foam:

Reexamination Certificate

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Details

C264S050000, C264S041000, C264S051000, C264S045100, C521S050000

Reexamination Certificate

active

10140823

ABSTRACT:
A piston pump has a piston and cylinder. A gas is supplied into the cylinder during and/or after a suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material to thereby discharge the gas and high-viscosity material into a pipe. Use is made of piston pumps45A and45B, each including a cylinder and a piston which reciprocally moves within the cylinder to effect the suction stroke and discharge stroke, and a membrane gas generator10to which compressed air is supplied to generate a gas. A low-pressure gas generated by the membrane gas generator10is supplied into each piston pump and the high-viscosity material is introduced into the gas.

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