Patents by Inventor Ralf Koecher

Ralf Koecher 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 for controlling the pressure ratio of a jet pump
    Patent number: 4762467
    Abstract: In a jet pump, the suction pressure (Po) generated may be kept constant within predetermined limits and times by varying the pressure ratio f(p) providing a prescribed value for the pressure ratio f(p) is determined by computer-aided iterative changing of an existing value of the pressure ratio f(p) using an algorithm and a measured value for the pressure (Pe) of the delivery fluid.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: August 9, 1988
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Hans Ackermann, Ralf Koecher, Udo Steinberner, Otto Michel