Patents by Inventor Henry Mikulski

Henry Mikulski 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).

  • Stator current based malfunction detecting system in a variable flow delivery pump
    Patent number: 5201636
    Abstract: The current invention detects malfunctions in a variable flow delivery pump. These malfunctions prevent the pump from sustaining inherently high accuracy and/or cause damages to the pump. The invention detects the malfunctions without comparing sampled values to a preset absolute value. A malfunction is determined by a pattern of force exerted on a displacement pump in relation to the displacement positions. The pattern is compared to an empirically established range of pattern values. Once a malfunction is determined, the invention responds in a preselected manner.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: April 13, 1993
    Assignee: Milton Roy Company
    Inventor: Henry Mikulski