Patents by Inventor Manfred Heintschel

Manfred Heintschel 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: 8827558
    Abstract: A bearing bushing assembly for a telescopic steering shaft comprises an outer tube and an inner tube, wherein the bearing bushing assembly comprises a bearing bushing, which is seated against the inner tube and made of an inflexible plastic material, and a sealing element, which is molded onto the bearing bushing and made of an elastic plastic material so as to connect the inner tube to the outer tube in an axially movable and sealing manner, the bearing bushing being enclosed by an elastic bushing, which in turn is enclosed by an end section of the outer tube, the outer circumference of the elastic bushing comprising outwardly extending rib-shaped elements, the elastic bushing comprises at least one sealing lip extending in the axial direction.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: September 9, 2014
    Assignee: ZF Lenksysteme GmbH
    Inventors: Manfred Heintschel, Ralf Urban, Sebastian Kubisch, Achim Kraus
  • Publication number: 20130118291
    Abstract: A bearing bushing assembly for a telescopic steering shaft comprises an outer tube and an inner tube, wherein the bearing bushing assembly comprises a bearing bushing, which is seated against the inner tube and made of an inflexible plastic material, and a sealing element, which is molded onto the bearing bushing and made of an elastic plastic material so as to connect the inner tube to the outer tube in an axially movable and sealing manner, the bearing bushing being enclosed by an elastic bushing, which in turn is enclosed by an end section of the outer tube, the outer circumference of the elastic bushing comprising outwardly extending rib-shaped elements, the elastic bushing comprises at least one sealing lip extending in the axial direction.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 16, 2013
    Applicant: ZF Lenksysteme GmbH
    Inventors: Manfred HEINTSCHEL, Ralf URBAN, Sebastian KUBISCH, Achim KRAUS
  • Publication number: 20120144952
    Abstract: An outer tube of a steering shaft in a motor vehicle, into which an inner shaft, which can be positively coupled in the direction of rotation, is telescopically insert able in the outer tube, has a wall thickness that varies in the circumferential direction, wherein radially recessed outside wall reduction sections having a reduced outside radius are provided on the outer casing.
    Type: Application
    Filed: February 10, 2011
    Publication date: June 14, 2012
    Inventors: Manfred Heintschel, Sebastian Kubisch
  • Patent number: 7942230
    Abstract: A hydraulic power steering system for a vehicle, e.g., an electrohydraulic power steering system for a motor vehicle, includes a servo valve, the relative movement of whose control parts actuates a piston rod of a servo cylinder and changes at least one steering angle of a wheel which is operatively connected to the piston rod, and additionally has an electric servo motor which drives a rack with the servo cylinder for adjusting the steering angle of the wheel in the same direction. In order to provide an electrohydraulic power steering system which is as compactly arranged as possible in the region of its actuator and may be used flexibly for different classes of vehicle, the action of the rack and the piston rod of the servo cylinder is combined, in a parallel arrangement with one another, on an addition member for jointly adjusting the steering angle of the wheel.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: May 17, 2011
    Assignee: ZF Lenksysteme GmbH
    Inventors: Walter Kogel, Michael Haegele, Manfred Heintschel
  • Publication number: 20080257634
    Abstract: The invention relates to a hydraulic power steering system (1) for a vehicle, in particular an electrohydraulic power steering system for a motor vehicle, having a servo valve (2), the relative movement of whose control parts actuates a piston rod (3) of a servo cylinder (4) and changes at least one steering angle (?) of a wheel (5) which is operatively connected to the piston rod (3). The power steering system (1) additionally has an electric servo motor (6) which drives a rack (7) with the servo cylinder (4) for the purpose of adjusting the steering angle of the wheel (5) in the same direction.
    Type: Application
    Filed: February 10, 2005
    Publication date: October 23, 2008
    Inventors: Walter Kogel, Michael Haegele, Manfred Heintschel
  • Publication number: 20060276249
    Abstract: A steering shaft, e.g., for a motor vehicle, is for mechanically linking a steering handle to a steered wheel in a torque-locked manner, the steering shaft including a first shaft and a second shaft, and the shafts being connected in a torque-locked manner via a mechanically movable universal joint (5). In order to provide a steering shaft, which allows a large, variable joint angle, while having a simple, inexpensive design, and while preventing rotational irregularities, it is provided that the mechanically movable, universal joint is arranged as a homokinetic, double universal joint, which includes an inner double fork, and a first outer joint fork and a second outer joint fork on the first and second shafts. The outer joint forks are connected to the double fork by universal joints, respectively, and include ball pins on their ends pointing toward the double fork, by which these engage with a guideway on an axially nondisplaceable, but radially displaceable centering disk in the double fork.
    Type: Application
    Filed: May 15, 2006
    Publication date: December 7, 2006
    Inventor: Manfred Heintschel
  • Publication number: 20060266148
    Abstract: A steering shaft especially for a motor vehicle has a torque-induced operative connection of a steering handling device with a steered wheel with a first shaft and with a second shaft, the shafts being connected torque-induced over a shaft joint with movavable joints. In order to create a steering shaft, the shaft joint of which achieves a large range, over which the deflection angle can be adjusted in all directions, while, at the same time, rotational nonuniformities of the steering shaft are minimized, the shaft joint is fixed at a component, which is attached to the vehicle, so that it can be swiveled approximately about the joint center with a device for the pivotable mounting of the shaft joint.
    Type: Application
    Filed: February 23, 2006
    Publication date: November 30, 2006
    Inventors: Manfred Heintschel, Walter Kogel, Guenter Dieterle
  • Patent number: 6669216
    Abstract: A hydropneumatic suspension system for motor vehicles, having at least one hydropneumatic support aggregate and one automatic level control system cooperating with the aggregate, the automatic level control system, as a function of the lift position of the wheels, sending hydraulic fluid from the hydropneumatic pressure reservoir into the hydropneumatic suspension cylinders, or drawing hydraulic fluid from the hydropneumatic suspension cylinders into the pressure reservoirs, and the functions of suspension, roll stabilization, and automatic level control being able to be performed using the hydropneumatic suspension cylinders.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: December 30, 2003
    Assignee: ZF Lenksysteme GmbH
    Inventors: Dieter Elser, Andreas Braun, Manfred Heintschel, Wolfgang Zeitz