Patents by Inventor Ralf Walter

Ralf Walter 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: 7566216
    Abstract: An injection molding machine is provided, including a nozzle assembly having a channel for conveying a fluid. At least one cavity insert is removably mounted within a cavity plate, the at least one cavity insert defining a mold cavity, and a first portion of a gate for communicating the fluid between the nozzle assembly and the mold cavity. A gate insert defines a receptacle for the nozzle assembly, and further defining a second portion of the gate. The gate insert is floatably retained between the nozzle assembly and the at least one cavity insert. Preferably, the gate insert is retained by a gate insert plate that is disposed between the cavity plate and the nozzle assembly.
    Type: Grant
    Filed: April 29, 2007
    Date of Patent: July 28, 2009
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Sven Kmoch, Ralf Walter Fisch, Derek Robertson McCready, Joachim Johannes Niewels
  • Publication number: 20090061043
    Abstract: A mold insert retaining structure including a retainer plate connectable, in use, to a mold plate with a spring-clamp, a complementary bayonet structure defined on the retainer plate and a mold insert for providing a twistable interconnection therebetween, a portion of the mold insert clamped between the retainer plate and the mold plate.
    Type: Application
    Filed: August 27, 2007
    Publication date: March 5, 2009
    Inventors: Ralf Walter FISCH, Sven Kmoch
  • Publication number: 20080312014
    Abstract: A drive wheel of an auxiliary unit pulley of an internal combustion engine is provided, having a rotatable sleeve which is operatively connected to a traction mechanism, having a hub which is rotationally fixed to the drive input axle of an auxiliary unit. A damping device is arranged between the rotatable sleeve and the hub for reducing torsional vibrations. In order to obtain improved damping of torsional vibrations together with increased operational reliability, the damping device (4) includes a series arrangement of a spring storage device (5) and a slip clutch (6), wherein the spring storage device (5) is arranged to act between the rotatable sleeve (2) and a driver disk (8) which is rotatably mounted on the hub (3), and the slip clutch (6) is arranged to act between the driver disk (8) and the hub (3).
    Type: Application
    Filed: December 4, 2006
    Publication date: December 18, 2008
    Applicant: SCHAEFFLER KG
    Inventors: Hermann Stief, Ralf Walter
  • Publication number: 20080286403
    Abstract: An air ring is provided for a stripper plate assembly. The air ring is removably situated within bores defined in the stripper plate. An air manifold is also defined within the stripper plate, which is connected to a pressurized air source for communication of a pressurized air flow to each of the bores air ducts within each air ring direct the pressurized air flow from the air manifold towards a preferred location on the molded article that passed through the air ring.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 20, 2008
    Applicant: Husky Injection Molding Systems Ltd.
    Inventors: Ralf Walter FISCH, Sven KMOCH
  • Publication number: 20080268090
    Abstract: According to embodiments of the present invention, there is provided a slide bar for slidably linking a split mold insert to a first mold half of an injection mold for forming a preform capable of being blow-molded into a container. The slide bar comprises a base structure defining a first slide interface for linking the base structure to an actuating bar of the injection mold; a second slide interface for receiving the split mold insert; a third slide interface for cooperating with a locking structure of the first mold half of the injection mold; the second slide interface and the third slide interface formed on opposing extremes of the base structure.
    Type: Application
    Filed: April 26, 2007
    Publication date: October 30, 2008
    Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.
    Inventors: Sven KMOCH, Ralf Walter FISCH, Arnold MAI, Friedhelm SCHMITZ
  • Publication number: 20080268088
    Abstract: An injection molding machine is provided, including a nozzle assembly having a channel for conveying a fluid. At least one cavity insert is removably mounted within a cavity plate, the at least one cavity insert defining a mold cavity, and a first portion of a gate for communicating the fluid between the nozzle assembly and the mold cavity. A gate insert defines a receptacle for the nozzle assembly, and further defining a second portion of the gate. The gate insert is floatably retained between the nozzle assembly and the at least one cavity insert. Preferably, the gate insert is retained by a gate insert plate that is disposed between the cavity plate and the nozzle assembly.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Inventors: Sven Kmoch, Ralf Walter Fisch, Derek Robertson McCready
  • Publication number: 20080268086
    Abstract: According to embodiments of the present invention, there is provided a split mold insert for a molding system. A first split mold insert complementary to a second split mold insert, the first and second split mold inserts configured, in use, to form a neck region of a preform capable of being blow-molded. The first split mold insert comprises a top portion and a bottom portion; the top portion for abutting, in use, a cavity plate assembly and the bottom portion being at an opposite extreme relative to the top portion; a back portion and a face portion opposite each other, extending between the top and bottom portions, the face portion defining a molding surface defining portion for forming, in use, at least a portion of the neck region of the preform; the back portion comprising a connecting interface for connecting, in use, to a slide bar.
    Type: Application
    Filed: April 26, 2007
    Publication date: October 30, 2008
    Applicant: Husky Injection Molding Systems, Ltd.
    Inventors: Sven Kmoch, Ralf Walter Fisch, Arnold Mai, Friedhelm Schmitz
  • Publication number: 20080268999
    Abstract: A friction wheel drive, especially for driving an auxiliary unit of an internal combustion engine in a frictionally engaging manner is provided. The friction wheel drive includes an adjustable friction wheel (3, 3?) which can be pressed at least against a contact disk (7, 9) of an output member (8) and/or an input member (10). In order to create a particularly simple, mechanically operating friction wheel (3, 3?), the friction wheel is provided with a running disk (5) which is mounted on a rolling bearing (19) that is fixed to the engine. The running disk (5) includes a tapered annular groove (24) having a width that can be varied by axially movable, spring-force impinged sidewalls (21). Further, a friction ring (4, 4?) having a diameter that is larger than that of the tapered annular groove (24) is inserted into the groove such that the friction ring (4, 4?) is disposed eccentric to the same, is guided in a radially movable fashion, and is spring mounted.
    Type: Application
    Filed: May 19, 2005
    Publication date: October 30, 2008
    Applicant: SCHAEFFLER KG
    Inventors: Thomas Kraft, Johann Singer, Michael Bogner, Ralf Walter, Horst Adel, Diethard Sauermann
  • Publication number: 20080268089
    Abstract: An injection molding machine is provided, including a nozzle assembly having a channel for conveying a fluid. At least one cavity insert is removably mounted within a cavity plate, the at least one cavity insert defining a mold cavity, and a first portion of a gate for communicating the fluid between the nozzle assembly and the mold cavity. A gate insert defines a receptacle for the nozzle assembly, and further defining a second portion of the gate. The gate insert is floatably retained between the nozzle assembly and the at least one cavity insert. Preferably, the gate insert is retained by a gate insert plate that is disposed between the cavity plate and the nozzle assembly.
    Type: Application
    Filed: April 29, 2007
    Publication date: October 30, 2008
    Inventors: Sven KMOCH, Ralf Walter FISCH, Derek Robertson McCREADY, Joachim Johannes NIEWELS
  • Publication number: 20080256789
    Abstract: According to embodiments of the present invention, there is provided a system, a method and an apparatus for configuring an end of arm tool within a molding environment. The end of arm tool comprises a base structure attachable, in use, to an actuator of the molding system, the base structure comprising a mounting structure interface; a mounting structure configured to be releasably accepted, in use, within the mounting structure interface; the mounting structure for receiving, in use, a part receptacle; the base structure comprising a service connecting interface configured to connect, in use, a service to the part receptacle via the mounting structure.
    Type: Application
    Filed: April 18, 2007
    Publication date: October 23, 2008
    Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.
    Inventors: Ralf Walter FISCH, Sven KMOCH
  • Publication number: 20080218262
    Abstract: The invention relates to a method for performing predistortion of a radio frequency signal, said radio frequency signal comprising a wanted signal and a first and a second intermodulation distortion signal sideband, comprising: defining a predistortion window, positioning said predistortion window asymmetrically around said radio frequency signal, predistorting said radio frequency signal within the positioned predistortion window.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 11, 2008
    Applicant: Alcatel Lucent
    Inventors: Rainer ZIEGLER, Ralf WALTER
  • Publication number: 20080058148
    Abstract: A friction drive is provided, in particular for frictionally engaged driving of an auxiliary unit of an internal combustion engine, with an adjustable friction wheel (3), which can be brought into pressure contact with at least one contact disk (4, 6) of a drive element (5) and/or a driven element (7). A need-dependent drive of the auxiliary unit is achieved by a switchable coupling, which is used for need-dependent separation of the drive element (5) and auxiliary unit.
    Type: Application
    Filed: April 22, 2005
    Publication date: March 6, 2008
    Applicant: SCHAEFFLER KG
    Inventors: Horst Adel, Michael Bogner, Johann Singer, Thomas Kraft, Diethard Sauermann, Ralf Walter
  • Patent number: 5435486
    Abstract: To make a ballast-free permanent rail way, an asphalt base is applied to a substructure comprised of concrete. Railway ties, which have a recess in the center on their underside, are laid on the asphalt base. In order to secure the ties against transverse forces and to assure accurate fitting and wear-free anchoring, the ties have a first bore in the center and the substructure has a blind bore. The blind bore is filled with an adhesive and then a dowel or a threaded rod is inserted into the blind bore which passes through a sliding spacer sleeve inserted into the first bore.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: July 25, 1995
    Assignee: Walter Bau-Aktiengesellschaft
    Inventors: Rudolf Gerlach, Ralf Walter, Bernhard Schad, Gunther Leykauf, Josef Eisenmann