Patents by Inventor Norbert Leonhardt

Norbert Leonhardt 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).

  • Patent number: 8246724
    Abstract: In a method for air treatment in a display cabinet for the storage and/or display of objects, whose walls, floor and roof structure more or less enclose the inside space of the display cabinet and in which a forced inflow of air from an air delivery system connected to the inside space (1) of the cabinet maintains a slight excess pressure compared with the air outside it, the said airflow passes through suitable dust or gas filtration means before entering the cabinet and its air humidity is adjusted and/or controlled by means of a cooling device. After filtration, the airflow passes through a catalyser (8) present in a liquid (7), the air picks up moisture from the liquid and is rendered completely free from germs. In this manner and in a simple way, a completely germ-free atmosphere is produced inside the display cabinet. A display cabinet for implementing the method has a corresponding structure.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: August 21, 2012
    Assignee: Glasbau Hahn GmbH
    Inventor: Norbert Leonhardt
  • Publication number: 20100079044
    Abstract: In a method for air treatment in a display cabinet for the storage and/or display of objects, whose walls, floor and roof structure more or less enclose the inside space of the display cabinet and in which a forced inflow of air from an air delivery system connected to the inside space (1) of the cabinet maintains a slight excess pressure compared with the air outside it, the said airflow passes through suitable dust or gas filtration means before entering the cabinet and its air humidity is adjusted and/or controlled by means of a cooling device. After filtration, the airflow passes through a catalyser (8) present in a liquid (7), the air picks up moisture from the liquid and is rendered completely free from germs. In this manner and in a simple way, a completely germ-free atmosphere is produced inside the display cabinet. A display cabinet for implementing the method has a corresponding structure.
    Type: Application
    Filed: November 19, 2009
    Publication date: April 1, 2010
    Applicant: GLASBAU HAHN GMBH
    Inventor: Norbert Leonhardt
  • Publication number: 20060172691
    Abstract: In a method for air treatment in a display cabinet for the storage and/or display of objects, whose walls, floor and roof structure more or less enclose the inside space of the display cabinet and in which a forced inflow of air from an air delivery system connected to the inside space (1) of the cabinet maintains a slight excess pressure compared with the air outside it, the said airflow passes through suitable dust or gas filtration means before entering the cabinet and its air humidity is adjusted and/or controlled by means of a cooling device. After filtration, the airflow passes into a container (2) holding a liquid (7), the said liquid being kept free from germs by suitable means. In this manner and in a simple way, a completely germ-free atmosphere is produced inside the display cabinet. A display cabinet for implementing the method has a corresponding structure.
    Type: Application
    Filed: May 28, 2004
    Publication date: August 3, 2006
    Inventor: Norbert Leonhardt