Patents by Inventor Axel Stegmann

Axel Stegmann 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 adjusting the amount of air in a closed air supply system for a chassis
    Patent number: 7624994
    Abstract: In order to avoid pressure and volume compensation as much as possible during measurement of the pressures of air spring units, the pressure in the air spring units (5, 6, 7, 8) is estimated prior to measurement of the pressures of the air spring units (5, 6, 7, 8) and is compared to the pressure in the air pressure accumulator (3). The higher of the two pressures determines the position of a 3/2 directional control valve (11) which separates the collector line (25) connecting all air spring units (5, 6, 7, 8) from the air pressure accumulator (3) or which connects it to as small a chamber volume of the supply system as possible.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: December 1, 2009
    Assignee: Continental Aktiengesellschaft
    Inventor: Axel Stegmann
  • Method for Adjusting the Amount of Air in a Closed Air Supply System for a Chassis
    Publication number: 20070228676
    Abstract: The object of the invention is to avoid pressure and volume compensation as much as possible during measurement of the pressures of the air spring units. According to the invention, the pressure in the air spring units (5, 6, 7, 8) is estimated prior to measurement of the pressures of the air spring units (5, 6, 7, 8) and is compared to the pressure in the air pressure accumulator (3). The higher of the two pressures determines the position of a 3/2 directional control valve (11) which separates the collector line (25) connecting all air spring units (5, 6, 7, 8) from the air pressure accumulator (3) or which connects it to as small a chamber volume of the supply system as possible.
    Type: Application
    Filed: April 25, 2005
    Publication date: October 4, 2007
    Inventor: Axel Stegmann