Patents by Inventor Gerrit Middelkoop

Gerrit Middelkoop 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).

  • Crate dryer
    Patent number: 6446352
    Abstract: Device for drying washed and rinsed crates or cases, comprising a frame and receiving or accommodation spaces carried by the frame for the crates or cases, in which the accommodation spaces are attached to a rotating shaft and are situated on either side of it in a symmetrical manner, and furthermore comprising means for rotating the rotating shaft and thus the accommodation spaces in order to cast off the water present on the crates or cases from them through centrifugal forces.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: September 10, 2002
    Assignee: Systemate Group, B.V.
    Inventors: Gerrit Middelkoop, Johannes C. Andeweg
  • Process and apparatus for loading and unloading powder catalyst
    Patent number: 5499746
    Abstract: The invention relates to a process and apparatus for transport, storage, loading and unloading of catalyst or adsorbent particles utilizing a special container equipped with a fluid-tight valve and which can rock progressively by means of a reverse-lock, escapement-type ratchet.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: March 19, 1996
    Assignee: Europeenne de Retraitement de Catalyseurs Eurecat
    Inventors: Georges Berrebi, Yves Jacquier, Habbo Edens, Gerrit Middelkoop