Patents by Inventor Helmut Schurmann

Helmut Schurmann 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: 9217482
    Abstract: The invention relates to a leaf spring (1) for motor vehicles, which is made of a fiber-reinforced synthetic material and can absorb potentially occurring lateral forces and transfer them to a leaf spring receiving device, comprises a first end (2) and a second end (3), which can each be fixed in a leaf spring receiving device in a torsion-proof and non-displaceable manner, and a bending joint section (11), which can compensate for a change in length of a resilient section (8) of the leaf spring (1) during a load-induced deformation of the resilient section (8). The leaf spring (1) comprises a first spring limb (5) and a second spring limb (6) which are connected to each other via a transition section (7). In a non-loaded state, both the first spring limb (5) and the second spring limb (6) are approximately planar and disposed at an angle relative to each other. The first spring limb (5) forms the resilient section (8). The bending joint section (11) contains the second spring limb (6).
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: December 22, 2015
    Assignee: Muhr und Bender KG
    Inventors: Helmut Schürmann, Tobias Keller
  • Publication number: 20130049271
    Abstract: The invention relates to a leaf spring (1) for motor vehicles, which is made of a fiber-reinforced synthetic material and can absorb potentially occurring lateral forces and transfer them to a leaf spring receiving device, comprises a first end (2) and a second end (3), which can each be fixed in a leaf spring receiving device in a torsion-proof and non-displaceable manner, and a bending joint section (11), which can compensate for a change in length of a resilient section (8) of the leaf spring (1) during a load-induced deformation of the resilient section (8). The leaf spring (1) comprises a first spring limb (5) and a second spring limb (6) which are connected to each other via a transition section (7). In a non-loaded state, both the first spring limb (5) and the second spring limb (6) are approximately planar and disposed at an angle relative to each other. The first spring limb (5) forms the resilient section (8). The bending joint section (11) contains the second spring limb (6).
    Type: Application
    Filed: March 9, 2011
    Publication date: February 28, 2013
    Applicant: MUHR UND BENDER KG
    Inventors: Helmut Schürmann, Tobias Keller
  • Patent number: 7077066
    Abstract: The invention relates to an axle guide consisting of a fiber-synthetic material composite for guiding an axle in the running gear of a rail vehicle, in particular a high-speed rail vehicle. Said guide has two end sections (11, 11?) for connecting the guide (1) both to the axle and to the chassis (2) of the running gear in a manner resistant to torsion and a central section (12) located therebetween, which has a longitudinal axis (13) aligned with the direction of travel (X) and across-section that is at least partially flat in the vertical direction (Z). The guide (1) has at least one integrated flexural joint (14) with a vertical flexural axis (15) and enables a rotational degree of freedom, which protects the wheel beating from damaging flexural stresses, to be achieved simply without the need for an additional joint component.
    Type: Grant
    Filed: December 1, 2001
    Date of Patent: July 18, 2006
    Assignee: Bombardier Transportation GmbH
    Inventors: Erich Blohberger, Oliver Franke, Helmut Schürmann
  • Publication number: 20040099177
    Abstract: The invention relates to an axle guide consisting of a fibre-synthetic material composite for guiding an axle in the running gear of a rail vehicle, in particular a high-speed rail vehicle. Said guide has two end sections (11, 11′) for connecting the guide (1) both to the axle and to the chassis (2) of the running gear in a manner resistant to torsion and a central section (12) located therebetween, which has a longitudinal axis (13) aligned with the direction of travel (X) and across-section that is at least partially flat in the vertical direction (Z). The guide (1) has at least one integrated flexural joint (14) with a vertical flexural axis (15) and enables a rotational degree of freedom, which protects the wheel beating from damaging flexural stresses, to be achieved simply without the need for an additional joint component.
    Type: Application
    Filed: January 6, 2004
    Publication date: May 27, 2004
    Inventors: Erich Blohberger, Oliver Franke, Helmut Schurmann
  • Patent number: 4686057
    Abstract: The pasty damping medium is used to damp mechanical and/or acoustic oscillations. The agent contains as a minimum compound a solid finely divided substance or a mixture of solid finely divided substances, as a liquid phase, a silicone oil, a polyglycol, a mineral oil and/or a saturated aliphatic or aromatic aliphatic carboxylic acid ester, an agent for increasing the interfacial surface activity or a surfactant, a finely divided magnesium and/or aluminium silicate and/or a silicon dioxide finely divided as a viscosity stabilizer and possibly a small quantity of an antioxidant. The invention concerns also a method for producing the pasty damping medium and the use of the pasty damping medium in different hydraulic damping devices or for industrial shock absorber or industrial vibration damper.
    Type: Grant
    Filed: November 3, 1982
    Date of Patent: August 11, 1987
    Assignee: Aros Hydraulik GmbH
    Inventors: Kaspar Lochner, Helmut Schurmann, Erich Brand
  • Patent number: 4518513
    Abstract: The pasty damping medium is used to damp mechanical and/or acoustic osciallations. The agent contains as a minimum compound a solid finely divided substance or a mixture of solid finely divided substances, as a liquid phase, a silicone oil, a polyglycol, a mineral oil and/or a saturated aliphatic or aromatic aliphatic carboxylic acid ester, an agent for increasing the interfacial surface activity or a surfactant, a finely divided magnesium and/or aluminium silicate and/or a silicon dioxide finely divided as a viscosity stabilizer and possibly a small quantity of an antioxidant. The invention concerns also a method for producing the pasty damping medium and the use of the pasty damping medium in different hydraulic damping devices or for industrial shock absorber or industrial vibration damper.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: May 21, 1985
    Assignee: Schiedel GmbH & Co.
    Inventors: Kaspar Lochner, Helmut Schurmann, Erich Brand
  • Patent number: 4416790
    Abstract: The present invention relates to a paste-like damping medium for damping mechanical and/or acoustical vibrations, based on silicone oil, polyglycol, mineral oil and/or a thermally-stable aliphatic or aromatic carboxylic acid ester, finely divided solid material, an agent for reducing the surface tension and an agent for increasing the intrinsic viscosity.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: November 22, 1983
    Assignee: Schiedel GmbH & Co.
    Inventors: Helmut Schurmann, Erich Brand