Patents by Inventor Hanswerner Kalbas

Hanswerner Kalbas 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).

  • System for wiping windshields with a spheroidal curvature
    Patent number: 6374451
    Abstract: A system for wiping windshields including a wiper arm system and a blade carrier for at least one wiper blade connected with the wiper arm system. The wiper arm system includes two individual wiper arms constructed such that, in at least one position, the individual wiper arms are, in a substantial area of their longitudinal dimension, parallel to one another in a plane essentially perpendicular to the windshield plane.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: April 23, 2002
    Assignee: Knorr-Bremse Systeme fur Schienenfahrzeug GmbH
    Inventors: Hanswerner Kalbas, Günter Gfatter
  • Wiper arm having a curved wiper arm body
    Patent number: 6212730
    Abstract: A wiper arm for wiping vehicle's windows and having an essentially oblong wiper arm body. The wiper arm body has essentially, along its whole length, a cross-sectional shape which has a first curvature facing the window and a second curvature facing away from the window. The second curvature being smaller than the first curvature.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: April 10, 2001
    Assignee: Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH
    Inventors: Hanswerner Kalbas, Wolf Dietrich Hoffman
  • Track vehicle windshield wiper arm
    Patent number: D462044
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: August 27, 2002
    Assignee: Knorr-Bremse Systeme Fuer Schienenfahrzeuge GmbH
    Inventors: Guenter Gfatter, Hanswerner Kalbas