Patents by Inventor Olaf Wichmann

Olaf Wichmann 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: 10876643
    Abstract: A diaphragm non-return valve for a compressed air system is provided herein. The diaphragm non-return valve comprises a housing, a purge output formed on the housing, a valve seat formed on the purge output, and a diaphragm disc which is attached to the housing and which lies on the valve seat in the closed state of the non-return valve and is lifted off the valve seat in the open state of the non-return valve. The diaphragm disc is attached to the housing by a clamping bracket, and the clamping bracket has holding component via which the clamping bracket is attached to the outlet-side end of the purge output.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: December 29, 2020
    Assignee: WABCO EUROPE BVBA
    Inventors: Michael Kaufmann, Armin Sieker, Arne Stephan, Olaf Wichmann
  • Publication number: 20190195376
    Abstract: A diaphragm non-return valve for a compressed air system is provided herein. The diaphragm non-return valve comprises a housing, a purge output formed on the housing, a valve seat formed on the purge output, and a diaphragm disc which is attached to the housing and which lies on the valve seat in the closed state of the non-return valve and is lifted off the valve seat in the open state of the non-return valve. The diaphragm disc is attached to the housing by a clamping bracket, and the clamping bracket has holding component via which the clamping bracket is attached to the outlet-side end of the purge output.
    Type: Application
    Filed: June 20, 2017
    Publication date: June 27, 2019
    Inventors: Michael KAUFMANN, Armin SIEKER, Arne STEPHAN, Olaf WICHMANN
  • Patent number: 10259436
    Abstract: A brake modulator (1) for a compressed air braking system (80) of a vehicle is disclosed. The brake modulator (1) has a main housing (8) and two relay valves (2, 3). Each relay valve is configured with a delivery valve seat (31, 131) and a vent valve seat (30, 130) and a vent position, wherein compressed air inlets (2d, 3d) are connected via a transverse bore (27) to a common compressed air inlet port (25, 26), and a delivery duct (12a, 112a) extends in the axial direction (A) in each relay valve (2, 3). The relay valves (2, 3) have guide body inserts (12, 112) which are inserted into a longitudinal bore (29) of the main housing (8), which longitudinal bore (29) extends in the axial direction (A), and the relay valves (2, 3) in each case have the delivery duct (12a, 112a).
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: April 16, 2019
    Assignee: WABCO GMBH
    Inventors: Karsten-Wilhelm Lüchau, Armin Sieker, Arne Stephan, Olaf Wichmann
  • Publication number: 20180001877
    Abstract: A brake modulator (1) for a compressed air braking system (80) of a vehicle is disclosed. The brake modulator (1) has a main housing (8) and two relay valves (2, 3) Each relay valve is configured with a delivery valve seat (31, 131) and a vent valve seat (30, 130) and a vent position, wherein compressed air inlets (2d, 3d) are connected via a transverse bore (27) to a common compressed air inlet port (25, 26), and a delivery duct (12a, 112a) extends in the axial direction (A) in each relay valve (2, 3) The relay valves (2, 3) have guide body inserts (12, 112) which are inserted into a longitudinal bore (29) of the main housing (8), which longitudinal bore (29) extends in the axial direction (A), and the relay valves (2, 3) in each case have the delivery duct (12a, 112a).
    Type: Application
    Filed: January 13, 2016
    Publication date: January 4, 2018
    Inventors: Karsten-Wilhelm LÜCHAU, Armin SIEKER, Arne STEPHAN, Olaf WICHMANN
  • Patent number: 8075333
    Abstract: A plug having a guide, which has a first guiding section and a second guiding section for guiding the plug into a corresponding plug receptacle. The second guiding section is disposed at a greater distance from the plug face than the first guiding section. The first guiding section and the second guiding section have contours in their respective cross-sections that are different from one another.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: December 13, 2011
    Assignee: WABCO GmbH
    Inventors: Thomas Bolik, Michael Kaufmann, Ulrich Overhage, Olaf Wichmann
  • Publication number: 20100015841
    Abstract: The invention relates to a plug (100) having a guiding, which has a first guiding section (102) and a second guiding section (103) for guiding the plug into a corresponding plug receptacle (240), wherein the second guiding section (103) is disposed at a greater distance from the plug face (113), than the first guiding section (102), and the first guiding section (102) and the second guiding section (103) have a contour in their respective cross-section that is different from one another.
    Type: Application
    Filed: September 6, 2007
    Publication date: January 21, 2010
    Inventors: Thomas Bolik, Michael Kaufmann, Ulrich Overhage, Olaf Wichmann