Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Reexamination Certificate
2009-01-16
2011-12-27
Carrillo, Sharidan (Department: 1711)
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
C134S022110, C134S022120, C134S022180, C134S026000, C134S034000, C134S036000, C134S042000
Reexamination Certificate
active
08083861
ABSTRACT:
An apparatus and method for cleaning passageways and the like with a two-phase mixture of gas under pressure and an aqueous cleaning solution. The two-phase cleaning mixture is generated in a module and is passed out of the module at a predetermined rate that determines droplet size, velocity and droplet density at the pipeline surface to be cleaned. The droplets impact the walls of the passageway to be cleaned, thereby fragmenting, eroding and removing contaminants in said passageway. These are then flushed out of the passageway by the two-phase flow. The flow of cleaning solution can be steady or pulsed. The apparatus and process include a clean-in-place system that is useful in food, beverage, pharmaceutical and similar process industries.
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Labib Mohamed Emam
Lai Chung-Yue
Tabani Yacoob
Carrillo Sharidan
Merchant & Gould P.C.
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