Patents by Inventor Andrew F. Tischendorf

Andrew F. Tischendorf 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).

  • Twin tank water treatment method
    Patent number: 8758627
    Abstract: Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: June 24, 2014
    Assignee: Pentair Residential Filtration, LLC
    Inventors: John A. Stewart, Andrew F. Tischendorf, Kenneth J. Sieth, Rahul Sadashiv Kamble
  • TWIN TANK WATER TREATMENT METHOD
    Publication number: 20140076813
    Abstract: Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.
    Type: Application
    Filed: November 19, 2013
    Publication date: March 20, 2014
    Applicant: Pentair Residential Filtration, LLC
    Inventors: Michael A. Stewart, Andrew F. Tischendorf, Kenneth J. Sieth, Rahul Sadashiv Kamble
  • Twin tank water treatment system and method
    Patent number: 8608963
    Abstract: Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 17, 2013
    Assignee: Pentair Residential Filtration, LLC
    Inventors: John Stewart, Andrew F. Tischendorf, Kenneth J. Sieth, Rahul Sadashiv Kamble
  • Twin Tank Water Treatment System and Method
    Publication number: 20110089113
    Abstract: Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.
    Type: Application
    Filed: September 29, 2010
    Publication date: April 21, 2011
    Inventors: John Stewart, Andrew F. Tischendorf, Kenneth J. Sieth, Rahul Sadashiv Kamble
  • Method and apparatus for visually inspecting a substrate on a printing press
    Publication number: 20040188644
    Abstract: The present invention relates generally to the field of printing presses, and specifically to a method and apparatus for visually inspecting a web moving on a printing press using a CMOS based image recording device and preferably a LED light source. The LED light source includes at least two colors of light, such as white and blue, for highlighting various ink colors with respect to the web.
    Type: Application
    Filed: April 9, 2004
    Publication date: September 30, 2004
    Applicant: Quad/Tech, Inc.
    Inventors: Jeffrey P. Rappette, Andrew F. Tischendorf, Mark A. Gerloff, Arie S. Rechavel, Edward J. Boris, Frank N. Vroman, Michael D. Sisco, Paul Warner