Patents by Inventor Klaus Schiffner

Klaus Schiffner 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: 7878699
    Abstract: A drive system for a mixer barrel for absorbing weight of the mixer barrel (1). The drive system communicates with a base (5) via a weight supporting element which supports the mixer barrel (1) and enables relative movement therebetween. The weight supporting element comprises at least one distortable elastic element (28, 29, 30, 39) enabling the movement between the drive system and the base (5). The at least one elastic element (28, 29, 30, 39) supports the weight of the mixer barrel (1) above the at least one elastic element (28, 29, 30, 39). The drive system (4) has at least one component (36) which limits movement of the drive system (4) and increases a distance between the drive system (4) and the base (5) such that a torque strain on the drive system (4) is braced by the base (5).
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: February 1, 2011
    Assignee: ZF Friedrichshafen AG
    Inventors: Klaus Schiffner, Andreas Geier, Eduard Heilig, Michael Frondorf
  • Publication number: 20090034363
    Abstract: A drive for a barrel mixer having at least one elastic element (17) which is arranged between a base (5) and a drive system (4). The drive levels out relative displacement between the mixing drum (1) and the frame (2) of the vehicle. A number of components added to the drive are provided for absorbing and minimizing displacement of the drive system (4).
    Type: Application
    Filed: August 8, 2005
    Publication date: February 5, 2009
    Applicant: ZF Friedrichshafen AG
    Inventors: Michael Frondorf, Eduard Heilig, Andreas Geier, Klaus Schiffner
  • Patent number: 7331701
    Abstract: A drive for a mixing drum has a compensating device (25) for the purpose of compensating the motions between a drum (1) and a bearing bracket (4), which consists of a first component (20), an elastic element (17), and a second component (16).
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: February 19, 2008
    Assignee: ZF Friedrichshafen AG
    Inventors: Eduard Heilig, Andreas Geier, Klaus Schiffner, Michael Frondorf
  • Publication number: 20060176133
    Abstract: A drive for a mixing drum has a compensating device (25) for the purpose of compensating the motions between a drum (1) and a bearing bracket (4), which consists of a first component (20), an elastic element (17), and a second component (16).
    Type: Application
    Filed: February 4, 2005
    Publication date: August 10, 2006
    Inventors: Eduard Heilig, Andreas Geier, Klaus Schiffner, Michael Frondorf
  • Patent number: 4741521
    Abstract: Axially and radially-loadable bearing which damps in an axial direction for elastic mounting of machines, machine parts, and/or vehicle parts. This bearing has an outer part and two elastomeric or rubber springs located between an inner, often rotating, part and an outer part, which form a cavity area which is preferably filled with damping fluid and in which there is a partition separating the cavity into two chambers. The partition comprises a rigid sliding part guided on the inner part and a rigid fastening part connected in a fixed manner to the outer part. The two rigid parts are connected to one another by means of an elastomeric or rubber thrust washer. Preferably, there is a throttle in at least one of the rigid parts.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: May 3, 1988
    Assignee: Boge GmbH
    Inventors: Klaus Schiffner, Jorn-Rainer Quast, Gerd Gab