Patents by Inventor Ralf Fiekens

Ralf Fiekens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8808634
    Abstract: An electrode arrangement for an ozone generator with a tubular outer electrode, which concentrically encloses a tubular dielectric at a distance therefrom, wherein the dielectric concentrically encloses a rod at a distance therefrom and wherein a filler material is provided in the interstice between the outer electrode and the dielectric and another filler material is provided in the interstice between the dielectric and the rod, wherein the rod is an insulator.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: August 19, 2014
    Assignee: XYLEM IP Holdings LLC
    Inventors: Reiner Fietzek, Ernst Martin Billing, Ralf Fiekens
  • Patent number: 8692209
    Abstract: A UV disinfection system for waste water and drinking water, includes a number of UV radiators arranged in cladding tubes, the cladding tubes being configured essentially symmetrically to a longitudinal axis, as well as a cleaning device for the cladding tubes. The cleaning device includes at least one cleaning ring for each cladding tube, which surrounds the cladding tube, the at least one cleaning ring having a scraper ring resting against the cladding tube, at least one drive for driving the cleaning ring in the direction of the longitudinal axis, and supply provisions for supplying pressurized fluid under elevated pressure from a pressure source to the scraper ring are provided, wherein pressure may be applied onto the scraper ring from the pressure source in the direction of the cladding tube.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: April 8, 2014
    Assignee: Xylem IP Holdings, LLC
    Inventors: Friedhelm Krüger, Hans-Joachim Anton, Ralf Fiekens, Ernst Martin Billing
  • Publication number: 20130330243
    Abstract: An electrode arrangement for an ozone generator with a tubular outer electrode, which concentrically encloses a tubular dielectric at a distance therefrom, wherein the dielectric concentrically encloses a rod at a distance therefrom and wherein a filler material is provided in the interstice between the outer electrode and the dielectric and another filler material is provided in the interstice between the dielectric and the rod, wherein the rod is an insulator.
    Type: Application
    Filed: January 16, 2012
    Publication date: December 12, 2013
    Applicant: XYLEM IP Holdings LLC
    Inventors: Reiner Fietzek, Ernst Martin Billing, Ralf Fiekens
  • Publication number: 20120217420
    Abstract: A UV disinfection system for waste water and drinking water, includes a number of UV radiators arranged in cladding tubes, the cladding tubes being configured essentially symmetrically to a longitudinal axis, as well as a cleaning device for the cladding tubes. The cleaning device includes at least one cleaning ring for each cladding tube, which surrounds the cladding tube, the at least one cleaning ring having a scraper ring resting against the cladding tube, at least one drive for driving the cleaning ring in the direction of the longitudinal axis, and supply provisions for supplying pressurised fluid under elevated pressure from a pressure source to the scraper ring are provided, wherein pressure may be applied onto the scraper ring from the pressure source in the direction of the cladding tube.
    Type: Application
    Filed: September 2, 2010
    Publication date: August 30, 2012
    Applicant: XYLEM IP HOLDINGS LLC
    Inventors: Friedhelm Krüger, Hans-Joachim Anton, Ralf Fiekens, Ernst Martin Billing
  • Publication number: 20120216843
    Abstract: A UV disinfection system for waste water and drinking water, including a number of UV radiators arranged in cladding tubes and a cleaning device for the cladding tubes. The cladding tubes are configured essentially symmetrically to a longitudinal axis. The cleaning device for the cladding tubes includes (a) at least one cleaning ring for each cladding tube, which surround the cladding tube, (b) at least one drive for driving the cleaning ring in the direction of the axis, wherein the at least one cleaning ring is disposed at a distance (d) from the surface of the cladding tube, (c) openings directed in the cleaning ring towards the cladding tube, and (d) a supply of pressurised liquid under high pressure into the openings so that the pressurised liquid is directed as a cleaning jet onto the surface of the cladding tube.
    Type: Application
    Filed: September 2, 2010
    Publication date: August 30, 2012
    Applicant: XYLEM IP HOLDINGS LLC
    Inventors: Friedhelm Krüger, Hans-Joachim Anton, Ralf Fiekens, Ernst Martin Billing
  • Patent number: 7560080
    Abstract: A method for generating ozone from gases containing oxygen. The ozone is generated by silent electric discharge in an installation comprising at least two gaps, which are traversed by the gas, each of said gaps being formed between an electrode and a dielectric that separates each gap from an additional electrode. According to the invention, the restriction of the volumetric flow of the gas of at least one gap is controlled.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: July 14, 2009
    Assignee: WEDECO Gesellschaft für Umwelttechnologie mbH
    Inventors: Ernst Martin Billing, Ralf Fiekens, Uwe Hofer
  • Publication number: 20040140195
    Abstract: A method for generating ozone from gases containing oxygen. The ozone is generated by silent electric discharge in an installation comprising at least two gaps, which are traversed by the gas, each of said gaps being formed between an electrode and a dielectric that separates each gap from an additional electrode. According to the invention, the restriction of the volumetric flow of the gas of at least one gap is controlled.
    Type: Application
    Filed: November 14, 2003
    Publication date: July 22, 2004
    Inventors: Ernst Martin Billing, Ralf Fiekens, Uwe Hofer