Patents by Inventor H. Michael Lutgen

H. Michael Lutgen 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).

  • Publication number: 20090050590
    Abstract: A storage system that includes a storage rack and a plurality of containers. The storage rack includes a frame assembly, a plurality of shelf members, and at least one biasing member. The biasing member is positioned on one of the shelf members and extends into a storage space defined two adjacent shelves that is sized to receive a container. The biasing member applies a biasing force upon a container positioned in the storage space thereby retaining the container in the storage rack. The biasing member can be a separately formed piece that is mounted to the shelf member. Alternatively, the biasing member can be formed integral with the shelf member such that addition of the biasing member to the storage rack does not require additional material.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 26, 2009
    Inventor: H. Michael Lutgen
  • Patent number: 5228585
    Abstract: A vehicle-mounted double-walled ellipsoidal cryogenic storage vessel includes an inner vessel enclosed by an outer shell to form an insulation chamber therebetween. Both the inner vessel and the outer shell are formed in the same manner. An elliptical pressure head of circular cross-section is cut along a diameter to form two end halves. An end wall is secured between the two end halves to form an end, which is secured to an end of a wall like cross-section. This process is repeated with another pressure head to form the other end of the storage vessel. Storage vessels may be constructed of any size desired to allow sufficient ground clearance when mounted under a vehicle.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: July 20, 1993
    Assignee: Minnesota Valley Engineering, Inc.
    Inventors: H. Michael Lutgen, Keith W. Gustafson