Method of, and apparatus for defoaming

Details Method of, and apparatus for defoaming Method of, and apparatus for defoaming

2005-12-06

2009-02-24

Smith, Duane S (Department: 1797)

Gas separation: processes

Degasification of liquid

Defoaming

C096S180000, C516S115000, C015S353000

Reexamination Certificate

active

07494531

ABSTRACT:
Defoaming equipment, and more particularly, removing, defoaming, and storing large amounts of foam after a Blast Mitigation or Decontamination Foam has been used in either an open area or in an contained area is described. An apparatus is provided for defoaming, comprising: a vacuum system, including a vacuum head for drawing the foam through a suction hose terminating in a nozzle, that feeds the foam into a holding tank that initially stores a quantity of defoaming agent, and a pump drawing the defoaming agent from the holding tank to at least one injector that is fitted on the vacuum-side of the vacuum system, whereby the defoaming agent is actively mixed with the collected foam, reducing the collected foam. The reduced foam and defoaming agent are recirculated through the pump and the nozzle, the suction hose, the vacuum system, the injector and holding tank are of chemical-resistant construction.

REFERENCES:
patent: 4360946 (1982-11-01), Marshall et al.
patent: 4974618 (1990-12-01), Nysted
patent: 5813086 (1998-09-01), Ueno et al.
patent: 6405626 (2002-06-01), Bureaux et al.
patent: 6439120 (2002-08-01), Bureaux et al.
patent: 6553887 (2003-04-01), Bureaux et al.

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