Patents by Inventor Mariao Eppinger

Mariao Eppinger 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).

  • Shut-off system for flue gas conduits or air intake conduits in oil and gas fire systems
    Patent number: 4369718
    Abstract: An energy-saving closure system is provided for use in preventing needless energy loss. The system employs a pivotal closure adapted to alternately move between the fully open and fully closed portion in a conduit for conveying gases relative to a combustion zone. The closure requires pressure diffentials only for being urged into the open and closed positions such as normally occur in the heating cycle. No energy-consuming, auxiliary apparatus is needed.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: January 25, 1983
    Inventors: Otto Eppinger, Mariao Eppinger