Patents by Inventor Justin Frohock

Justin Frohock 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).

  • Patent number: 10766591
    Abstract: A drain system for a marine engine cooling system, includes an engine having one of a closed coolant circuit or an open cooling circuit, a raw water passageway having a raw water intake for drawing raw water into the raw water passageway, including a hose arranged to have a vertically high point and a vertically low point, a drain valve connected to the raw water passageway at the in hose vertically low point, a vent line connected to the raw water passageway at the hose vertically high point and a control handle located remote from the hose vertically high point and the hose vertically low point, the control handle having a vent valve connected to the vent line, the control handle being connected to the drain valve by a cable, wherein movement of the control handle selectively simultaneously opens and closes the drain valve and the vent valve.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: September 8, 2020
    Assignee: AB VOLVO PENTA
    Inventors: Emil Hasl, William M. Cahoon, Justin Frohock
  • Publication number: 20190202539
    Abstract: A drain system for a marine engine cooling system, includes an engine having one of a closed coolant circuit or an open cooling circuit, a raw water passageway having a raw water intake for drawing raw water into the raw water passageway, including a hose arranged to have a vertically high point and a vertically low point, a drain valve connected to the raw water passageway at the in hose vertically low point, a vent line connected to the raw water passageway at the hose vertically high point and a control handle located remote from the hose vertically high point and the hose vertically low point, the control handle having a vent valve connected to the vent line, the control handle being connected to the drain valve by a cable, wherein movement of the control handle selectively simultaneously opens and closes the drain valve and the vent valve.
    Type: Application
    Filed: September 23, 2016
    Publication date: July 4, 2019
    Applicant: AB VOLVO PENTA
    Inventors: Emil Hasl, William M. Cahoon, Justin Frohock