Abstract: A device for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream includes subjecting the dirty air stream to a first cyclonic separation stage to obtain a partially cleaned air stream and subjecting the partially cleaned air stream to an electronic filtration stage and optionally a second cyclonic separation stage to obtain the clean air stream. The electronic filtration stage is optionally removable with a cyclonic cleaning stage from the vacuum cleaner. The electronic filtration stage is optionally an electrostatic precipitator which utilizes air flow through the vacuum cleaner to generate the voltage used by the electrostatic precipitator.
Type:
Grant
Filed:
January 14, 2002
Date of Patent:
May 25, 2004
Assignee:
Fantom Technologies Inc.
Inventors:
Wayne Ernest Conrad, Helmut Gerhard Conrad
Abstract: A water treatment apparatus for treating ozone with water is disclosed. A treatment carafe has a gas conduit so that off gases which accumulates in the carafe may be vented during a treatment cycle. The gas conduit conveys the off gas from the carafe to an ozone destructor via a passageway. An accumulator is provided in the passageway upstream from the destructor to hinder water entrained in the off gas from contacting and damaging the destructor.
Type:
Grant
Filed:
January 12, 2001
Date of Patent:
March 4, 2003
Assignee:
Chiaphua Industries Limited
Inventors:
Wayne Conrad, Terry Bohrson, John Stouth, Mike Badgley, Joe Garrison, Shawn Nielsen, Richard Zulik, Deryk Lisicky