Dispenser for reactive chemicals

Agitating – Having specified feed means – Plural related feeders having separate outlets to mixing...

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Details

222145, 366182, 366184, B01F 1502, B67D 560

Patent

active

050908146

ABSTRACT:
A mixing, dispensing and purging apparatus for mutually reactive chemicals. The dispensing apparatus includes a cartridge comprising a mixing assembly and purging rod. The mixing assembly having a block of inexpensive monolithic design with an axial bore formed in it through which the purging rod reciprocates. The mixing assembly also includes a scraper assembly positioned within the block of material. The scraper assembly includes two cup-shaped members positioned essentially in mirror image with each cup-shaped member including an aperture in its base through which the purging rod extends. An insert is positioned within both of the cup-shaped members and extends between the base of each cup-shaped members. The cup-shaped members and insert are designed to remove material built up on the reciprocating purging rod while keeping the rod aligned and preventing fluid flow through the scraper assembly. The scraper assembly thus alleviates the need for any solvent material.

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