Patents by Inventor Michel Jacques Leon Coquerel

Michel Jacques Leon Coquerel 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).

  • Self-acting device for stopping filling of tanks with fluid products
    Patent number: 4106536
    Abstract: A first secondary valve activated by a float controls through a differential pressure acting on a membrane a main valve in the tank filling duct. The first valve is automatically neutralized to ensure draining of the pipes placed upstream the main valve unless a second secondary valve prevents this neutralization if the level of the receiving tank is beyond a predeterminated level.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: August 15, 1978
    Assignee: Equipment Industriel Normand
    Inventor: Michel Jacques Leon Coquerel