Patents by Inventor Uwe Visel

Uwe Visel 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).

  • Filter cartridge having vibratable diaphragm
    Patent number: 6143046
    Abstract: A filter cartridge, including a tubular filter element which encloses an interior space on the downstream, clean air side, is joined in the axial direction on one side to a side-face lid, forming a seal. In order to reduce pressure peaks which occur in the filter element on the clean air side, the lid has a diaphragm which is capable of vibrating.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: November 7, 2000
    Assignee: Firma Carl Freudenberg
    Inventors: Hans Wiegand, Uwe Visel
  • Filter material
    Patent number: D440772
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: April 24, 2001
    Inventor: Uwe Visel
  • Filter material
    Patent number: D451289
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: December 4, 2001
    Assignee: Carl Freudenberg
    Inventor: Uwe Visel