Patents by Inventor Dennis Robert Farrenkopf

Dennis Robert Farrenkopf 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).

  • High temperature expandable refractory
    Patent number: 9090514
    Abstract: An expandable refractory for high temperature sealing, the expandable refractory includes un-expanded vermiculite and one or more mixtures of ceramic fibers in a water based refractory binder.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: July 28, 2015
    Assignee: FUELCELL ENERGY, INC.
    Inventors: Dennis Robert Farrenkopf, Michael Quatannens
  • HIGH TEMPERATURE EXPANDABLE REFRACTORY
    Publication number: 20150065331
    Abstract: An expandable refractory for high temperature sealing, the expandable refractory includes un-expanded vermiculite and one or more mixtures of ceramic fibers in a water based refractory binder.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Applicant: FUELCELL ENERGY, INC.
    Inventors: Dennis Robert Farrenkopf, Michael Quatannens
  • Fluid cooled coherent jet lance
    Patent number: 6334976
    Abstract: A lance which may be used to generate a longer coherent gas jet having inflowing and outflowing coolant fluid passages which are in flow communication and which straddle the flame envelope fluid passages, all of which are coaxial with the main passageway.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: January 1, 2002
    Assignee: Praxair Technology, Inc.
    Inventors: John Erling Anderson, William John Mahoney, Balu Sarma, Dennis Robert Farrenkopf
  • Multiple coherent jet lance
    Patent number: 6171544
    Abstract: A system for establishing a plurality of coherent gas jets proximate one another using a single lance wherein plurality of gas jets are ejected from a corresponding plurality of nozzles in a lance and a flame envelope is established around the plurality of gas jets, and the jets remain distinct and do not coalesce for their length.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: January 9, 2001
    Assignee: Praxair Technology, Inc.
    Inventors: John Erling Anderson, Dennis Robert Farrenkopf, Richard Thomas Semenza, Pravin Chandra Mathur, William John Mahoney
  • Coherent gas jet
    Patent number: 5823762
    Abstract: A system for producing a coherent jet of gas wherein a flame envelope is established around a gas jet and directed toward the center axis of the gas jet.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: October 20, 1998
    Assignee: Praxair Technology, Inc.
    Inventors: John Erling Anderson, Dennis Robert Farrenkopf