Brushing – scrubbing – and general cleaning – Electrostatic cleaning – Hand implement
Reexamination Certificate
1998-08-04
2001-07-17
Warden, Jill (Department: 1744)
Brushing, scrubbing, and general cleaning
Electrostatic cleaning
Hand implement
C096S066000, C096S096000, C361S212000, C361S213000, C361S216000, C361S220000, C361S221000, C361S222000, C361S225000, C361S226000, C361S229000, C361S230000, C361S231000, C361S234000
Reexamination Certificate
active
06260224
ABSTRACT:
FIELD OF THE INVENTION
The invention is in the field of particle collectors that have electrical conductors and electric power supplies that utilize electrical charges to collect particles, such as dust, dirt, aerosols, bacteria, viruses, pollens, mold spores, animal dander, dust mites, allergens, and particulate matter.
BACKGROUND OF THE INVENTION
Dirty, polluted and unhealthy surfaces and air can cause illness, respiratory irritation and offensive odors. In the past cleaning utensils, such as brooms, and electric vacuums and dusters, have been used to clean floors and other surfaces. Electric air purification systems used to remove airborne pollutants and allergens typically have one or more conventional filtering devices. A fan moves air through the filters and discharges filtered air into the environment.
SUMMARY OF THE INVENTION
The invention relates to an apparatus for collecting particles from air, a surface or object by ionizing or negatively charging the particles with a cathode and collecting the charged particles with an anode. An embodiment of the apparatus has a particle pick-up assembly joined to an elongated handle. The handle is used to facilitate manual movement of the particle pick-up assembly and accommodate the electrical power supply for the pick-up assembly. The pick-up assembly has a non-electrical conductive member accommodating the cathode and anode. The cathode includes a conductor bar and a plurality of laterally spaced fingers attached to the bar. The anode has a rod located within the non-electrical conductive member and spaced from the fingers. Activation of the power supply causes the cathode to impart negative electric charges on the particles as the particle pick-up assembly is moved over the surface or object. The anode having a positive electric charge collects the negatively charged particles on and within the non-electrical conductive member.
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patent: 4095303 (1978-06-01), Armstrong et al.
patent: 4128909 (1978-12-01), Kawabe et al.
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patent: 5125124 (1992-06-01), Saeki et al.
patent: 5957090 (1999-09-01), Larson
patent: 2490110 (1982-03-01), None
patent: 3-204565 (1991-09-01), None
patent: 5-285084 (1993-11-01), None
patent: 1409347 (1988-07-01), None
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