Patents by Inventor Dirk Miller

Dirk Miller 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 producing a retort for a nitriding furnace and retort
    Patent number: 10294537
    Abstract: A method for producing a retort for a nitriding furnace, in which metallic workpieces are heat-treated in a pre-determined atmosphere, includes pickling at least the surfaces of the retort, which are configured to come into contact with the pre-determined atmosphere while the nitriding furnace is operating, by using a pickling agent. The pickled surfaces may then be electropolished and passivated. A retort may be produced according to this method and the retort may be used in a nitriding furnace.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: May 21, 2019
    Assignee: IVA SCHMETZ GMBH
    Inventors: Heinrich-Peter Lankes, Peter Haase, Dirk Miller
  • METHOD FOR PRODUCING A RETORT FOR A NITRIDING FURNACE AND RETORT
    Publication number: 20170226604
    Abstract: A method for producing a retort for a nitriding furnace, in which metallic workpieces are heat-treated in a pre-determined atmosphere, includes pickling at least the surfaces of the retort, which are configured to come into contact with the pre-determined atmosphere while the nitriding furnace is operating, by using a pickling agent. The pickled surfaces may then be electropolished and passivated. A retort may be produced according to this method and the retort may be used in a nitriding furnace.
    Type: Application
    Filed: August 14, 2015
    Publication date: August 10, 2017
    Inventors: Heinrich-Peter LANKES, Peter HAASE, Dirk MILLER
  • Drying rack
    Patent number: 5833083
    Abstract: A drying rack is provided with a plurality of self-supporting shelves. The shelves telescope with respect to one another to provide easy loading and unloading of objects, such as clothing garments, to be dried upon the shelves. Each shelf comprises a frame member over which a jacket is slidably fit. The jacket is constructed of a mesh fabric to allow air circulation therethrough. The jacket can be easily removed from the frame member for cleaning, if necessary.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: November 10, 1998
    Inventor: Dirk Miller