Patents by Inventor Anders Comstedt

Anders Comstedt 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).

  • Method and apparatus for controlling the start of an intermittently operating pump
    Patent number: 4311438
    Abstract: Renewed starting of an intermittently operating pump is controlled in that the running time of the pump from the last start thereof is measured by means of a running time gauge the measuring value of which is maximized, and in that the pause time commencing at the end of the running time is controlled by start delaying means in dependence on the duration, measured by the running time gauge, of the preceding running time such that a long running time gives a short pause time and a short running time gives a long pause time.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: January 19, 1982
    Assignee: El-Fi Innovationer AB
    Inventor: Anders Comstedt