Patents by Inventor Roland Berghaus

Roland Berghaus 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).

  • Spring and shock absorber unit for air-suspended vehicle
    Patent number: 6722640
    Abstract: A U-type bellows air spring is supported on one side relative to the vehicle frame and on the other side relative to the axle or a longitudinal control arm guiding the latter. The lower end of the U-type bellows is fastened on the longitudinal control arm side in a pressure-tight manner to a flange of a supporting element, and a vibration absorber protrudes through the supporting element. A piston cylinder of the vibration absorber is connected to the longitudinal control arm via a joint, and a piston rod on the longitudinal axis of the air spring is supported relative to the vehicle frame. To keep the amount of sealing for the air spring small even if it is not used very much, the supporting element for the lower end of the U-type bellows is arranged rigidly with respect to the piston cylinder of the vibration absorber. A preferably cylindrical circumferential surface for the U-type bellows to roll along during the compression and rebound action extends from the flange toward the longitudinal control arm.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: April 20, 2004
    Assignee: ZF Sachs AG
    Inventors: Georg Memmel, Wolfgang Kolb, Roland Berghaus, Burchard Michels, Bernd Rhein
  • Spring and shock absorber unit for air-suspended vehicle
    Publication number: 20030164585
    Abstract: A U-type bellows air spring is supported on one side relative to the vehicle frame and on the other side relative to the axle or a longitudinal control arm guiding the latter. The lower end of the U-type bellows is fastened on the longitudinal control arm side in a pressure-tight manner to a flange of a supporting element, and a vibration absorber protrudes through the supporting element. A piston cylinder of the vibration absorber is connected to the longitudinal control arm via a joint, and a piston rod on the longitudinal axis of the air spring is supported relative to the vehicle frame. To keep the amount of sealing for the air spring small even if it is not used very much, the supporting element for the lower end of the U-type bellows is arranged rigidly with respect to the piston cylinder of the vibration absorber. A preferably cylindrical circumferential surface for the U-type bellows to roll along during the compression and rebound action extends from the flange toward the longitudinal control arm.
    Type: Application
    Filed: February 25, 2003
    Publication date: September 4, 2003
    Applicant: ZF Sachs AG
    Inventors: Georg Memmel, Wolfgang Kolb, Roland Berghaus, Burchard Michels, Bernd Rhein