Cleaning and liquid contact with solids – Processes – With treating fluid motion
Reexamination Certificate
2006-08-29
2006-08-29
El-Arini, Zeinab (Department: 1746)
Cleaning and liquid contact with solids
Processes
With treating fluid motion
C134S007000, C134S019000, C134S036000, C134S094100, C134S095300, C134S102200, C134S198000, C239S290000, C239S291000
Reexamination Certificate
active
07097717
ABSTRACT:
Disclosed is a method and device for collecting particulate contaminants removed using a CO2decontamination medium from an early step of a decontamination process. The device removes particulate contaminants from a contaminated subject by a decontamination stream, and simultaneously forms another stream for collecting such contaminants into a collecting filter, thus preventing such contaminants from diffusing into the atmosphere. The device forms streams between the nozzles and the surface of the contaminated subject to readily move the nozzles along the surface of the subject without frictional resistance, to reduce the sense of fatigue of the operator. The method and device are advantageous in that when the device is readily used with a conventional CO2blasting decontamination unit to collect particulate contaminants, removal of particulate contaminants from a contaminated subject and collection of particulate contaminants contained in the decontamination stream are simultaneously performed, also allowing compressed gas blasted through air curtain blasting nozzles to prevent contaminated gas from diffusing into the atmosphere.
REFERENCES:
patent: 5486383 (1996-01-01), Nowotarski et al.
patent: 5529589 (1996-06-01), Lynn et al.
patent: 10-068800 (1998-03-01), None
patent: 1999-0040499 (1999-06-01), None
patent: 1020000074657 (2000-12-01), None
patent: 1020020067783 (2002-08-01), None
Jung Chong-Hun
Moon Jei-Kwon
Oh Won-Zin
Won Hui Jun
Yoo Jae-Hyung
Arent & Fox PLLC
El-Arini Zeinab
Korea Atomic Energy Research Institute
Korea Hydro & Nuclear Power Company Ltd.
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