Patents by Inventor Hagen Zelssmann

Hagen Zelssmann 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).

  • Adsorption filter for fuel vapors
    Patent number: 7604691
    Abstract: The invention relates to an adsorption filter for fuel vapors, particularly from the fuel tank of a combustion engine of a motor vehicle, which can be regenerated by desorptive reverse flow back flushing and which interacts with heat accumulating substances via the adsorbable or desorbable filter material. The aim of the invention is to increase the heat accumulability inside the filter material. To this end, the heat accumulating substances consist of phase-change materials (PCM) that are distributed in small units within the reactive filter material.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: October 20, 2009
    Assignee: Mable Filtersysteme GmbH
    Inventors: Frank Reiners, Hagen Zelssmann
  • Adsorption filter for fuel vapors
    Publication number: 20060144228
    Abstract: The invention relates to an adsorption filter for fuel vapors, particularly from the fuel tank of a combustion engine of a motor vehicle, which can be regenerated by desorptive reverse flow back flushing and which interacts with heat accumulating substances via the adsorbable or desorbable filter material. The aim of the invention is to increase the heat accumulability inside the filter material. To this end, the heat accumulating substances consist of phase-change materials (PCM) that are distributed in small units within the reactive filter material.
    Type: Application
    Filed: June 17, 2004
    Publication date: July 6, 2006
    Inventors: Frank Reiners, Hagen Zelssmann
  • Aeration and deaeration device for the fuel tank of an internal combustion engine
    Patent number: 6729311
    Abstract: An aeration and deaeration device for the fuel tank (1) of an internal combustion engine (6) in which the aeration and deaeration are performed through an adsorption filter, the adsorption filter can be regenerated by backwashing with atmospheric air, the backwashing air is sent to the air intake area of the internal combustion engine, the composition of the backwashing air is determined and taken into account in control of the combustion process taking place inside the engine, should permit backwashing of the adsorption filter which has an influence on the composition of the engine exhaust gas.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: May 4, 2004
    Assignee: Mahle Filtersysteme GmbH
    Inventors: Helmut Auernhammer, Dirk Bartz, Horst Hauke, Ivano Morgillo, Hagen Zelssmann
  • Aeration and deaeration device for the fuel tank of an internal combustion engine
    Publication number: 20030000505
    Abstract: An aeration and deaeration device for the fuel tank (1) of an internal combustion engine (6) in which
    Type: Application
    Filed: August 1, 2002
    Publication date: January 2, 2003
    Inventors: Helmut Auernhammer, Dirk Bartz, Horst Hauke, Ivano Morgillo, Hagen Zelssmann