Patents by Inventor David A. Wondra

David A. Wondra 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).

  • Supplemental water heater tank and system
    Patent number: 6938581
    Abstract: A supplemental water heater tank and system features a supplemental tank with an inner vessel surrounded by an outer jacket. The space there between is generally evacuated of air so that the inner vessel is vacuum insulated. The supplemental tank includes water inlet and outlet ports. Water is heated in a water heater and transferred from the upper portion of the water heater tank to the lower portion of the vacuum-insulated supplemental tank through an insulated line and a dip tube that extends between the water inlet port and the bottom portion of the inner vessel. Hot water is withdrawn from the upper portion of the inner vessel of the supplemental tank for use in a home or the like.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: September 6, 2005
    Assignee: Chart Inc.
    Inventors: Timothy A. Neeser, Thomas J. Shaw, David A. Wondra, Paul A. Drube
  • Supplemental water heater tank and system
    Publication number: 20040237908
    Abstract: A supplemental water heater tank and system features a supplemental tank with an inner vessel surrounded by an outer jacket. The space there between is generally evacuated of air so that the inner vessel is vacuum insulated. The supplemental tank includes water inlet and outlet ports. Water is heated in a water heater and transferred from the upper portion of the water heater tank to the lower portion of the vacuum-insulated supplemental tank through an insulated line and a dip tube that extends between the water inlet port and the bottom portion of the inner vessel. Hot water is withdrawn from the upper portion of the inner vessel of the supplemental tank for use in a home or the like.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: Timothy A. Neeser, Thomas J. Shaw, David A. Wondra, Paul A. Drube