Patents by Inventor Emanuel L. G. M. Van Heumen

Emanuel L. G. M. Van Heumen 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).

  • Pump comprising a chamber with inlet and outlet openings, a steam iron comprising said iron and a method of manufacturing said pump
    Patent number: 5899675
    Abstract: A pump 1 comprises a chamber 2 having a inlet opening 22 and an outlet opening 21. The chamber 2 extends between a first main wall 30 and a second main wall 40. The first main wall 30 is a triangular bottom wall of a body 3. The second main wall 40 is a part of a triangular bottom wall of a tub 4. The body 3 is tiltable relative to the tub 4 so that the volume of the chamber 2 is variable. The pump 1 comprises an outlet valve for blocking the outlet opening 21 when the volume of the chamber 2 is increased and an inlet valve for blocking the inlet opening when the volume of the chamber 2 is reduced. The outlet valve is formed by a first portion 31 of the body 3. This first portion 31 of the body blocks the outlet opening when the body is urged against the outlet opening 21. The inlet valve is formed by a second portion 32 of the body 3. This second portion 32 of the body blocks the inlet opening when the body is urged against the outlet opening 21.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: May 4, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Emanuel L. G. M. Van Heumen, Johan F. Dijksman, Wilhelmus F. Zoetelief