Patents by Inventor Djuradj Zec

Djuradj Zec 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).

  • Roll-off piston for an air spring rolling-lobe flexible member
    Patent number: 9709122
    Abstract: A roll-off piston made of plastic is for an air spring rolling-lobe flexible member (19) of the air spring. The roll-off piston (1) is configured as a plunge piston and has a preferably central support (2) for a stop buffer (3) acting in an axial direction of the air spring. The support (2) is preferably made of steel and can be received in a recess in the roll-off piston. The recess is of complementary configuration to the shape of the support and can be connected to the piston.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: July 18, 2017
    Assignee: ContiTech Luftfedersysteme GmbH
    Inventors: Djuradj Zec, Boris Balachonzew
  • ROLL-OFF PISTON FOR AN AIR SPRING ROLLING-LOBE FLEXIBLE MEMBER
    Publication number: 20140252703
    Abstract: A roll-off piston made of plastic is for an air spring rolling-lobe flexible member (19) of the air spring. The roll-off piston (1) is configured as a plunge piston and has a preferably central support (2) for a stop buffer (3) acting in an axial direction of the air spring. The support (2) is preferably made of steel and can be received in a recess in the roll-off piston. The recess is of complementary configuration to the shape of the support and can be connected to the piston.
    Type: Application
    Filed: April 10, 2014
    Publication date: September 11, 2014
    Applicant: ContiTech Luftfedersysteme GmbH
    Inventors: Djuradj Zec, Boris Balachonzew