Patents by Inventor Ralph Renz

Ralph Renz 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: 10399608
    Abstract: An integral component of a vehicle body includes an open profiled element and a reinforcing rib structure disposed in an interior of the open profiled element. The open profiled element has a fiber-plastics composite body having a first structure, and at least one reinforcement panel from metal for the localized reinforcement of the profiled element. The reinforcing rib structure is produced from a fiber-plastics composite having a second structure.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 3, 2019
    Assignee: DR. ING. H. C. F. PORSCHE AG
    Inventors: Philipp Kellner, Ralph Renz, Frank Haeusler, Sophie Kerchnawe, Olaf Taeger
  • Patent number: 10384725
    Abstract: A motor vehicle body assembly includes a composite structural component having a connection flange, and a metallic body component or functional group having a connection flange. The connection flange of the composite structural component and the connection flange of the metallic body component or functional group bear on one another and extend substantially across a preferred connection flange direction. The composite structural component has at least one carbon fiber-plastics composite tier having a thermal expansion behavior that in the fiber direction is almost temperature-neutral, and at least one fiber-plastics composite tier having a thermal expansion behavior similar to that of metal. The carbon fibers of the carbon fiber-plastics composite tier in relation to the preferred connection flange direction enclose an angle a=30 to 60°, and the fibers of the fiber-plastics composite tier in relation to the preferred connection flange direction enclose an angle b=0 to 30°.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: August 20, 2019
    Assignee: DR. ING. H.C. F. PORSCHE AG
    Inventors: Philipp Kellner, Ralph Renz, Frank Haeusler, Sophie Kerchnawe, Olaf Taeger
  • Publication number: 20180141592
    Abstract: An integral component of a vehicle body includes an open profiled element and a reinforcing rib structure disposed in an interior of the open profiled element. The open profiled element has a fiber-plastics composite body having a first structure, and at least one reinforcement panel from metal for the localized reinforcement of the profiled element. The reinforcing rib structure is produced from a fiber-plastics composite having a second structure.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 24, 2018
    Inventors: Philipp Kellner, Ralph Renz, Frank Haeusler, Sophie Kerchnawe, Olaf Taeger
  • Publication number: 20180141590
    Abstract: A motor vehicle body assembly includes a composite structural component having a connection flange, and a metallic body component or functional group having a connection flange. The connection flange of the composite structural component and the connection flange of the metallic body component or functional group bear on one another and extend substantially across a preferred connection flange direction. The composite structural component has at least one carbon fiber-plastics composite tier having a thermal expansion behavior that in the fiber direction is almost temperature-neutral, and at least one fiber-plastics composite tier having a thermal expansion behavior similar to that of metal. The carbon fibers of the carbon fiber-plastics composite tier in relation to the preferred connection flange direction enclose an angle a=30 to 60°, and the fibers of the fiber-plastics composite tier in relation to the preferred connection flange direction enclose an angle b=0 to 30°.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 24, 2018
    Inventors: Philipp Kellner, Ralph Renz, Frank Haeusler, Sophie Kerchnawe, Olaf Taeger
  • Patent number: 9593785
    Abstract: A method is provided for connecting a tubular structural element to a braided hose. The method includes placing the braided hose in the tubular structural element, placing a blow hose in the braided hose and applying internal pressure to expand the braided hose into contact with the tubular structural member. Heat then is applied to cure an adhesion promoter to achieve a positive materially integral connection of the braided profile to the tubular structural member.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: March 14, 2017
    Assignee: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Norman Koehler, Ralph Renz, Philipp Scheiner, Jens Bohlien, Marco Geuther
  • Patent number: 9481032
    Abstract: A metal casting has a metal casting base body into which at least one metal insert body (1) is cast. The metal insert body has anti-twisting part-contours and is connected to the metal casting base body in a positively locking manner by the casting-in. To simplify the production of a stable metal casting, the metal insert body (1) has an elongate shape with a longitudinal axis and an outer mold contour with an unround cross section interrupted in the longitudinal direction by annular grooves (11-13) that fix the cast-in metal insert body (1) in the axial direction.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: November 1, 2016
    Assignee: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Oliver Moessinger, Juergen Neubrander, Dieter Schaffert, Ralph Renz, Jan Bela, Marcus Gregor Sedlmayr
  • Publication number: 20150233500
    Abstract: A method is provided for connecting a tubular structural element to a braided hose. The method includes placing the braided hose in the tubular structural element, placing a blow hose in the braided hose and applying internal pressure to expand the braided hose into contact with the tubular structural member. Heat then is applied to cure an adhesion promoter to achieve a positive materially integral connection of the braided profile to the tubular structural member.
    Type: Application
    Filed: February 20, 2015
    Publication date: August 20, 2015
    Inventors: Norman Koehler, Ralph Renz, Philipp Scheiner, Jens Bohlien, Marco Geuther
  • Patent number: 8631915
    Abstract: Brake disk rings which have perforation holes perpendicular to the plane of the friction surfaces, characterized in that the perforation holes each have a distance from their nearest neighbors which is always at most 30 mm and on average is at least twice the average hole diameter.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: January 21, 2014
    Assignee: Audi, AG
    Inventors: Jens Rosenlocher, Heino Sieber, Ralph Renz, Moritz Bauer
  • Patent number: 8336681
    Abstract: A brake caliper for a disk brake system of a motor vehicle, has a caliper body which is cast from a light metal alloy or from light metal, with a skeleton structure arranged inside the caliper body. The material of the skeleton structure has a higher modulus of elasticity than the material of the caliper body. The skeleton structure is cast into the caliper body so that the caliper body encases the skeleton structure.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: December 25, 2012
    Assignee: Dr. Ing. H.C. F. Porsche Aktiengesellschaft
    Inventors: Ralph Renz, Oliver Moessinger, Rainer Wuest
  • Publication number: 20110281133
    Abstract: A metal casting has a metal casting base body into which at least one metal insert body (1) is cast. The metal insert body has anti-twisting part-contours and is connected to the metal casting base body in a positively locking manner by the casting-in. To simplify the production of a stable metal casting, the metal insert body (1) has an elongate shape with a longitudinal axis and an outer mold contour with an unround cross section interrupted in the longitudinal direction by annular grooves (11-13) that fix the cast-in metal insert body (1) in the axial direction.
    Type: Application
    Filed: May 3, 2011
    Publication date: November 17, 2011
    Applicant: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Oliver Moessinger, Juergen Neubrander, Dieter Schaffert, Ralph Renz, Jan Bela, Marcus Gregor Sedlmayr
  • Publication number: 20100038190
    Abstract: A brake caliper for a disk brake system of a motor vehicle, has a caliper body which is cast from a light metal alloy or from light metal, with a skeleton structure arranged inside the caliper body. The material of the skeleton structure has a higher modulus of elasticity than the material of the caliper body. The skeleton structure is cast into the caliper body so that the caliper body encases the skeleton structure.
    Type: Application
    Filed: May 29, 2009
    Publication date: February 18, 2010
    Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Ralph Renz, Oliver Moessinger, Rainer Wuest
  • Publication number: 20080164110
    Abstract: Brake disk rings which have perforation holes perpendicular to the plane of the friction surfaces, characterized in that the perforation holes each have a distance from their nearest neighbors which is always at most 30 mm and on average is at least twice the average hole diameter.
    Type: Application
    Filed: December 19, 2007
    Publication date: July 10, 2008
    Applicants: Audi AG, Dr. Ing. H.c. F. Porsche AG
    Inventors: Jens Rosenlocher, Heino Sieber, Ralph Renz, Moritz Bauer
  • Patent number: 6877398
    Abstract: A piston-rod assembly with a piston rod having at least one attachment at one end. The piston rod is fabricated of fiber reinforced composite. The piston rod has a body of fiber-reinforced ceramic with a basic matrix of carbon fibers or ceramic fibers or both wherein at least silicon carbide is embedded and with an open porosity, at least at the surface layer, of no more than 3% of the volume of that layer admitting lubricants into the pores. The at least one attachment (2, 18a, 19, or 22) includes at least one component of a non-ceramic material that fits into and/or interlocks with the piston rod.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: April 12, 2005
    Assignee: Krupp Bilstein GmbH
    Inventors: Walter Wirtz, Marcello Di Fina, Klaus Hofmann, Günter Poetsch, Walter Krenkel, Ralph Renz
  • Patent number: 6833163
    Abstract: A calibrating consists at least in part of a carbon fiber composite body. The composite body is formed from a porous material from a carbon-containing matrix, into which carbon fibers are embedded, this matrix is thickened by fluid infiltration of Si, which is essentially converted by reaction with carbon to SiC. The overall portion of Si and SIC is a maximum of 60% by volume. The carbon fibers have a minimum length of 3 mm.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: December 21, 2004
    Assignee: Deutsches Zentrum fuer Luft-und Raumfahrt E.V.
    Inventors: Walter Krenkel, Ralph Renz, Bodo Benitsch
  • Publication number: 20040031351
    Abstract: A piston-rod assembly with a piston rod having at least one attachment at one end. The piston rod is fabricated of fiber reinforced composite. The piston rod has a body of fiber-reinforced ceramic with a basic matrix of carbon fibers or ceramic fibers or both wherein at least silicon carbide is embedded and with an open porosity, at least at the surface layer, of no more than 3% of the volume of that layer admitting lubricants into the pores. The at least one attachment (2, 18a, 19, or 22) includes at least one component of a non-ceramic material that fits into and/or interlocks with the piston rod.
    Type: Application
    Filed: August 14, 2002
    Publication date: February 19, 2004
    Inventors: Walter Wirtz, Marcello Di Fina, Klaus Hofmann, Gunter Poetsch, Walter Krenkel, Ralph Renz
  • Patent number: 6668985
    Abstract: A friction element for use in a safety braking device for braking elevators co-operating with at least one elevator guide rail. The friction element has at least one friction surface that can be pressed against the guide rail to decelerate the elevator. The friction element is formed of a fiber-reinforced, ceramic composite material, containing silicon carbide and carbon with carbon fibers as reinforcing components. Preferably, the composite material is formed by a matrix of silicon carbide and carbon and the reinforcing component are exclusively carbon fibers with a minimum length of 10 mm and the volume content of carbon fibers in the friction element being between 30% and 70%.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: December 30, 2003
    Assignee: Inventio AG
    Inventors: Walter Krenkel, Ralph Renz
  • Publication number: 20020186479
    Abstract: The invention relates to an optical system comprising at least one first and second optical element, whereby the optical elements are arranged at a predetermined distance from one another, using a mounting. The mounting comprises compensation elements for modifying the predetermined distance between a first optical element and a second optical element, according to the temperature. The optical system is a telescope and the distance between the primary mirror and the secondary mirror is modified according to the temperature.
    Type: Application
    Filed: January 14, 2002
    Publication date: December 12, 2002
    Inventors: Armin Schoppach, Paul Kaufmann, Thomas Petasch, Walter Krenkel, Ralph Renz
  • Publication number: 20020029944
    Abstract: A friction element for use in a safety braking device for braking elevators co-operating with at least one elevator guide rail. The friction element has at least one friction surface that can be pressed against the guide rail to decelerate the elevator. The friction element is formed of a fiber-reinforced, ceramic composite material, containing silicon carbide and carbon with carbon fibers as reinforcing components. Preferably, the composite material is formed by a matrix of silicon carbide and carbon and the reinforcing component are exclusively carbon fibers with a minimum length of 10 mm and the volume content of carbon fibers in the friction element being between 30% and 70%.
    Type: Application
    Filed: September 6, 2001
    Publication date: March 14, 2002
    Inventors: Walter Krenkel, Ralph Renz
  • Publication number: 20010022034
    Abstract: A calibrating body consists at least in part of a carbon fiber composite body. The composite body is formed from a porous material from a carbon-containing matrix, into which carbon fibers are embedded, this matrix is thickened by fluid infiltration of Si, which is essentially converted by reaction with carbon to SiC. The overall portion of Si and SiC is a maximum of 60% by volume. The carbon fibers have a minimum length of 3 mm.
    Type: Application
    Filed: January 25, 2001
    Publication date: September 20, 2001
    Inventors: Walter Krenkel, Ralph Renz, Bodo Benitsch