US 4,163,650 AGranted

Portable electronic precipitator

AssigneeTepco Ltd.

InventorsClifford A. Watson, David W. Bonham

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Abstract

A portable electronic precipitator includes a two-stage type electrostatic percipitator mechanism mounted in a portable cabinet such as a wheel-mounted cabinet. The two stage type electrostatic percipitator is mounted in a vertical position with the inlet for the precipitator, containing the ionizer unit at the lower end of the precipitator with the collecting cell being mounted above the ionizer unit. A suitable fan is contained within the cabinet to pull air through the ionizer unit and then through the collector cell. The electrostatic precipitator mechanism is mounted above a particle fallout chamber. A freestanding arm, which is moveable in any desired direction is also mounted on the cabinet with a flexible hose surrounding and supported by the adjustable freestanding arm. The flexible hose completely surrounds the freestanding arm structure whereby no external support for the hose is required, thereby allowing the apparatus to be used in confined spaces with the hose protecting the freestanding arm structure.

Claims10

Dependent claims

A portable electronic precipitator apparatus which comprises:

a. a portable cabinet structure;
b. An enlarged particle fallout chamber formed by the lower portion of said cabinet structure;
c. a two-stage type electrostatic precipitator contained within said cabinet structure with the inlet of said electrostatic precipitator being in open communication with said particle fallout chamber and with the outlet of said electrostatic precipitator being oriented to direct a gas stream out of said cabinet structure;
d. an adjustable freestanding arm assembly affixed to and supported by said cabinet structure;
e. an elongated flexible duct means surrounding and supported by said adjustable arm assembly with one end of said duct means being in open communication with said particle fallout chamber;
and
f. means to direct a gas having particulate material suspended therein into the free end of said flexible duct means whereby said gas flows through duct means, into said particle fallout chamber, through said two-stage electrostatic precipitator for removal of at least a portion of the particulate material from said gas and then to direct the thus cleaned gas out of said cabinet structure.

4 more elements

Dependencies are inferred from the claim text.