Ultraviolet Radiation Patents (Class 210/748.1)
  • Patent number: 7713496
    Abstract: The invention has two primary portions, a means to provide ultra-violet radiation and a means for adsorbing organic, inorganic and, optionally, pathogens. The means to provide ultra-violet radiation comprises ultra-violet light sources emitting, at least in part, in the spectrum around 265 nm. Light emitting devices, including light emitting diodes and other solid state light emitting devices are available in this range as well. The adsorbent portion comprises several different adsorbent media, including zeolites, titanium dioxide (TiO2), alumina, carbon, micro- and/or nano-porous carbon, other minerals with a naturally occurring micro- and/or nano-porous structure, synthetic, including organic, substrates with a micro- and/or nano-porous structure, and surface-modified variations of the preceding adsorbents.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: May 11, 2010
    Assignee: Crystal Clear Technologies, Inc.
    Inventor: James M. Harris
  • Patent number: 7713426
    Abstract: Exemplary systems and methods relating to water treatment are described. One implementation filters water through a moving bed media filter sufficient to decrease the water's turbidity. This implementation simultaneously disinfects the filtered water and at least a portion of the moving bed media filter with ultra violet (UV) energy.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: May 11, 2010
    Assignee: Blue Water Technologies, Inc.
    Inventor: Remembrance L. Newcombe
  • Publication number: 20100100242
    Abstract: A method of providing end-to-end water quality control from a water system operator to a point of delivery proximate a consumer, which may be at the point of entry, and/or between the point of entry and point of use, and/or at the point of use. The method includes treating the water and delivering the water to the consumer at the point of delivery, filtering/purifying the water at the point of delivery, monitoring water quality at the point of delivery, and reporting water quality at the point of delivery to the water system operator over a network.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 22, 2010
    Inventor: BERNARD FRANK
  • Publication number: 20100089839
    Abstract: A device is proposed for the UV disinfection of liquids in an open or closed channel, having an inflow for the liquid to be disinfected, at least one UV irradiator arranged downstream of the inflow in a main flow direction and also having an outflow arranged downstream of the UV irradiator, in which a mixing device, driven by an electric motor, is arranged between the inflow and the at least one UV irradiator, which mixing device is set up for generating a cross-flow having at least one velocity component transverse to the main flow direction in order to improve mixing of the liquid.
    Type: Application
    Filed: July 12, 2007
    Publication date: April 15, 2010
    Applicant: WEDECO AG
    Inventors: Wolf-Dietrich Meese, Geoff Jones-Prichard
  • Patent number: 7691273
    Abstract: A method for clarifying a sludge, characterized in that a raw waste water is subjected to a solid-liquid separator and then to a primary filtration device, to separate it into a solid material and a liquid material, and the resultant liquid treated material is then treated by a process comprising an ozone treatment and a special light ray treatment.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: April 6, 2010
    Inventor: Seishiro Murakami
  • Patent number: 7691343
    Abstract: The object of the invention is a double-walled chamber for the UV disinfection of liquids, preferably drinking water and/or waste water. It realizes a rectangular and/or square cross-sectional shape of the UV radiation chamber even at higher pressures, whereby the radiation chamber can moreover be provided with a thin-walled configuration and allows an optimal and close arrangement of UV radiators as compared with a round chamber. By applying the inventive idea, the known dead zones at the entrance are completely eliminated and an entrance turbulence is produced which runs simultaneously with the piston flow in the chamber.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: April 6, 2010
    Assignee: Trojan Technologies Inc.
    Inventor: Peter Ueberall
  • Publication number: 20100025337
    Abstract: A portable UV-C purification system is provided that includes a current reduction technique for an electric pump to reduce power demands on an associated generator to thereby produce a light weight and efficient system.
    Type: Application
    Filed: October 8, 2009
    Publication date: February 4, 2010
    Applicant: WATER OF LIFE, LLC.
    Inventor: Stephen A. Yencho
  • Publication number: 20090321365
    Abstract: The present invention relates to a system for treating contaminated ballast water, comprising water inlets and outlets, piping connected to said inlets and outlets, at least one treatment unit connected to said piping, which treatment unit comprises UV radiation means, and catalysts, capable of, during operation, create photo-catalytic reactions in ballast water flowing through said unit, filter means for said ballast water and valve means for controlling the flow through said piping, treatment unit and filter means, characterised in control unit capable of, controlling and monitoring of said system for ensuring that no untreated water leaves the system in an uncontrolled manner.
    Type: Application
    Filed: September 26, 2007
    Publication date: December 31, 2009
    Inventors: Emil Eriksson, Niclas Dahl, Per Borin, Johan Markstedt, Peter Svensson, Carl Tullstedt
  • Patent number: 6558542
    Abstract: A water filter includes an egg-shaped housing formed from a lower shell and an upper shell. The lower shell is divided into an intake chamber and an outflow chamber. A filter or membrane is placed between the upper and lower shells.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: May 6, 2003
    Inventor: John Cyrson