Patents by Inventor Erich Sammer

Erich Sammer 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: 3951468
    Abstract: An air brake system for a railway vehicle has a brake control valve connected to a main air line which is maintained at a certain pressure when the brakes are released. Connected to the brake control valve is an air reservoir and a brake cylinder which is connected through suitable linkage to operate a friction brake. A valve device is provided which is actuated in response to the operating state of the friction brake and pressure in the main air line and includes a venting valve connected to the main air line so that the venting valve is opened during a simultaneous occurrence of the brake being in the braking state and the regular pressure level is maintained in the air line. Under other conditions the venting valve is closed.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: April 20, 1976
    Assignee: Knorr-Bremse GmbH
    Inventors: Engelbert Kolbeck, Erich Sammer