Process for environmentally safe cleaning using water-soluble po

Details Process for environmentally safe cleaning using water-soluble po Process for environmentally safe cleaning using water-soluble po

1996-08-08

1999-08-10

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156155, 1562751, 156281, 1563084, 134 5, 134 2211, 134 24, 134 42, B32B 2500, B08B 902

Patent

active

059353660

ABSTRACT:
A process for preparing two connected powder transfer conduits for cleaning without releasing powder from the conduits. The conduits are connected to each other by flexible tube of a water-dissolvable material to enable powder communication between the two conduits. A sealing operation is performed to form a seal in the tube sufficient to prevent the powder communication from one side of the seal to the other. The seal is then severed to produce two tube sections where each tube section is sealed at the point of severance. A cleaning conduit is then place over at least one of the two tube sections and connected to the respective conduit. The cleaning conduit is connected to a liquid cleaning source which is adapted to deliver a cleaning liquid capable of dissolving the tube section thereunder upon contact therewith.

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