Patents by Inventor Ronald Alan Stoffel

Ronald Alan Stoffel 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).

  • Marine macerator pump control module
    Patent number: 6534940
    Abstract: A marine macerator switch including a comparator programmable with over and under current limits corresponding with the characteristics of a macerator drive motor. A sensing circuit senses the real time motor current and compares it with the current limits to, at respective predetermined differentials, shut the motor down. The control also includes a timer programmed to allow the motor to run for a period of time corresponding with that required for emptying of the tank.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: March 18, 2003
    Assignee: Smart Marine Systems, LLC
    Inventors: John J. Bell, Ronald Alan Stoffel
  • Marine macerator pump control module
    Publication number: 20020190687
    Abstract: A marine macerator switch including a comparator programmable with over and under current limits corresponding with the characteristics of a macerator drive motor. A sensing circuit senses the real time motor current and compares it with the current limits to, at respective predetermined differentials, shut the motor down. The control also includes a timer programmed to allow the motor to run for a period of time corresponding with that required for emptying of the tank.
    Type: Application
    Filed: June 18, 2001
    Publication date: December 19, 2002
    Applicant: Smart Marine Systems, LLC
    Inventors: John J. Bell, Ronald Alan Stoffel