Patents by Inventor Calvin E. Phelps

Calvin E. Phelps 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).

  • Publication number: 20080267837
    Abstract: The invention provides a system for converting urea into reactants useful for removing NOX from industrial emissions. The system includes a urea inlet, a steam inlet, and a reactor in fluid communication with the urea inlet and the steam inlet. The reactor is configured and adapted to inject urea from the urea inlet into a steam flow from the steam inlet to convert the urea into at least one reactant for NOX reduction within a substantially gaseous mixture. The invention also provides a method of converting urea into reactants for reducing NOX out of industrial emissions. The method includes injecting urea into a steam flow to convert the urea into at least one reactant for NOX reduction within a substantially gaseous mixture.
    Type: Application
    Filed: May 10, 2007
    Publication date: October 30, 2008
    Inventors: Calvin E. Phelps, Clayton A. Erickson, Rajaram Jambhekar, John R. Harold
  • Patent number: 6120933
    Abstract: The present invention provides a rechargeable electrochemical battery cell which has self-charging capabilities. Specifically, the cell comprises two chambers interconnected with a tubing and a valve; each chamber further comprising a top closure, a positive contact disposed through said top closure, a cathode in electrical contact with said positive contact, a liquid metal anode disposed in the chamber at the bottom, a negative contact disposed through the bottom of the chamber and in electrical contact with said liquid metal anode, and a non-aqueous molten salt electrolyte disposed within the chamber. At a first temperature, a first electrochemical reaction occurs within the first chamber between the non-aqueous molten salt electrolyte and the liquid metal anode wherein the cation from the non-aqueous molten salt electrolyte reduces to form the liquid metal anode and the first liquid metal anode becomes the cation in the non-aqueous molten salt electrolyte.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: September 19, 2000
    Inventor: Calvin E. Phelps
  • Patent number: 5934227
    Abstract: A once-through steam generator having single pass non-split fluid flow upper furnace circuitry with a one to one connection of tubes of the lower furnace spiral or vertical tube assembly being connected to the vertical tubes of the upper furnace assembly to prevent steam water separation and provide a fully drainable flow circuit.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: August 10, 1999
    Assignee: The Babcock & Wilcox Company
    Inventor: Calvin E. Phelps
  • Patent number: 5755188
    Abstract: A once-through steam generator furnace having single pass non-split fluid flow circuitry to prevent steam-water separation with a one to one connection of smaller diameter tubes of the lower furnace spiral tube assembly being connected to the larger diameter vertical tubes of the upper furnace assembly through a reducing tube connecting spiral tubes angled to provide common centerlines with vertical tubes when the spiral tube centerlines are routed vertically.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: May 26, 1998
    Assignee: The Babcock & Wilcox Company
    Inventor: Calvin E. Phelps
  • Patent number: 5730087
    Abstract: Pendant convection pass tube circuitry of once through steam generator have their floor and floor support tubes enlarged by a swage coupling and connected to enlarged sidewall tubes supported from steel boiler top supports to provide a more flexible circuitry operating at decreased temperatures and pressure losses.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: March 24, 1998
    Assignee: The Babcock & Wilcox Company
    Inventor: Calvin E. Phelps
  • Patent number: 5722353
    Abstract: A once-through steam generator having single pass non-split fluid flow circuitry with a one to one connection of furnace hopper vertical tubes assembly being connected to the spiral tubes of the lower furnace assembly.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: March 3, 1998
    Assignee: The Babcock & Wilcox Company
    Inventor: Calvin E. Phelps