Patents by Inventor Juergen Ehret

Juergen Ehret 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: 10889654
    Abstract: The invention concerns a process for the manufacture of an acylated polysaccharide which comprises. (a) reacting a polysaccharide with an acylating agent to produce an acylated polysaccharide and (b) washing the acylated polysaccharide with water containing from 0.05 to 15 mg/l Ca2+-ions (c) recovering the washed acylated polysaccharide and an aqueous phase containing carboxylic acid from step (b).
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: January 12, 2021
    Assignee: SOLVAY ACETOW GmbH
    Inventors: Andreas Hummel, Hans-Juergen Ehret
  • Publication number: 20160237172
    Abstract: The invention concerns a process for the manufacture of an acylated polysaccharide which comprises. (a) reacting a polysaccharide with an acylating agent to produce an acylated polysaccharide and (b) washing the acylated polysaccharide with water containing from 0.05 to 15 mg/l Ca2+-ions (c) recovering the washed acylated polysaccharide and an aqueous phase containing carboxylic acid from step (b).
    Type: Application
    Filed: October 8, 2014
    Publication date: August 18, 2016
    Applicant: SOLVAY ACETOW GmbH
    Inventors: Andreas HUMMEL, Hans-Juergen EHRET
  • Patent number: 7994779
    Abstract: Presented is a method for continuously determining the tensile force F in a cable of a parking brake that includes transmitting the tensile force F to a cable grommet coupled to a first end of an expandable intermediate part that includes a magnet and/or a magnetic sensor. The first end of the expandable intermediate part faces away from a drive spindle coupled to a second end of the expandable intermediate part. The method further includes changing the length of the expandable intermediate part in the direction of its longitudinal axis in response to the transmitted tensile force F, moving the magnet and the magnetic sensor relative to each other in response to the change in length, changing the signal voltage of the magnetic sensor in response to the relative movement between the magnet and the magnetic sensor, and determining the tensile force F from the respective signal voltage.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: August 9, 2011
    Assignee: Continental Automotive GmbH
    Inventors: Johannes Ante, Juergen Ehret
  • Publication number: 20100301848
    Abstract: Presented is a method for continuously determining the tensile force F in a cable of a parking brake that includes transmitting the tensile force F to a cable grommet coupled to a first end of an expandable intermediate part that includes a magnet and/or a magnetic sensor. The first end of the expandable intermediate part faces away from a drive spindle coupled to a second end of the expandable intermediate part. The method further includes changing the length of the expandable intermediate part in the direction of its longitudinal axis in response to the transmitted tensile force F, moving the magnet and the magnetic sensor relative to each other in response to the change in length, changing the signal voltage of the magnetic sensor in response to the relative movement between the magnet and the magnetic sensor, and determining the tensile force F from the respective signal voltage.
    Type: Application
    Filed: January 12, 2007
    Publication date: December 2, 2010
    Applicant: Continental Automotive GmbH
    Inventors: Johannes Ante, Jürgen Ehret
  • Patent number: 6805386
    Abstract: A door lock (12) which is conceived in particular for use in motor vehicle doors has a rotary latch (14) and a closing aid (10) which acts on the latter and, with the aid of a drive, carries along the door to be closed in to the closed position. Known door locks having a closing aid have an increased space requirement and cannot readily be accommodated in structurally predetermined constructional spaces. The invention provides the drive of the closing aid such that it is separated structurally from the door lock (12) and provides a flexible drive element for transmitting force from the drive to the rotary latch (14). If appropriate, a deflection roller (26) may be provided and may be designed such that it is movable in order to bring about an auxiliary opening.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: October 19, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jürgen Ehret, Michael Helmer
  • Patent number: 6422615
    Abstract: A closure device, especially for vehicle doors, possesses a rotary latch interacting with a closure pin, a releasable ratchet for arresting the door, and a motor-driven shutting aid, which moves the door into the closed position. A problem from safety aspects is activating the shutting aid if fingers or articles are still located between the door and the bodywork. In order to reduce the risk of injury or damage, when the release mechanism is actuated, the force flow between the drive of the shutting aid and the door to be closed is simultaneously mechanically interrupted. As a result of this measure, the rotary latch is immediately released and the door springs open.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: July 23, 2002
    Assignee: Mannesmann VDO AG
    Inventors: Martin Roos, Jürgen Ehret
  • Patent number: 6390517
    Abstract: A door lock (10) having an opening aid (26) has a rotatable lock latch (12), a detent pawl (18) arresting the latter in the latching position, and a driven driving pin (44) which opens the detent pawl (18) and can be blocked against a stop (50). The previously customary solution of providing the stop (50) on the detent pawl (18) restricts the structural design. In order to obtain more scope in the arrangement of the parts, it is proposed to arrange the stop (50) on a separate blocking lever (48) which can be carried along into its blocking position by the detent pawl (18) during the opening.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: May 21, 2002
    Assignee: Mannesmann VDO AG
    Inventor: Jürgen Ehret