Patents by Inventor Jurgen Hofmann

Jurgen Hofmann 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: 7177625
    Abstract: In a radio communication system with at least one radio network control device, at least one base station is connected to at least one user station by a radio communication interface. The base station(s) and the radio network control device are components of a base station subsystem. The radio network control device is connected to an access device for a core network. The radio network control device and the user station(s) have a service specific key that is preferably valid for several user stations, or in other words, the service specific key is not user specific.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: February 13, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jürgen Hofmann, Jörg Schniedenharn, Lars Wehmeier
  • Patent number: 7136660
    Abstract: The invention relates to a method for increasing the precision during the determination of system parameters dependent on the propagation delay, e.g. for a positional determination, in a mobile communications system with emission diversity, according to which a subscriber data signal and a reference signal are assigned to a subscriber. The subscriber data signal is emitted by at least two antenna devices on the emission side, whereas the reference signal is emitted exclusively by one antenna device on the emission side. The reference signal is used to precisely determine signal propagation delays, upon which the system parameters depend.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: November 14, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Färber, Jürgen Hofmann, Karel Sotek
  • Publication number: 20060213240
    Abstract: The invention relates to an electromechanical lock cylinder, which interacts with evaluating electronics for recognizing an access authorization and comprises a housing that has two opposing cylindrical cavities (12). A lock core, which can be actuated by a key, or a knob shaft (11), which is joined to a knob in a rotationally fixed manner, is rotationally mounted in said cavities. The lock core and/or knob shaft (11) interact with a lock lug (13), which actuates, in particular, a bolt or latch of a door lock. When the key fits or in the event of a successful access authorization, an electromechanically driven blocking or coupling element (14) is moved out of the position of rest into an angular position, and a rotationally fixed joining between the key or knob and the lock lug (13) is effected. The invention is characterized in that the lock lug (13), when the blocking or coupling element (14) is in a position of rest, can be freely rotated relative to both lock cores or to both knob shafts (11).
    Type: Application
    Filed: June 22, 2004
    Publication date: September 28, 2006
    Applicant: BUGA TECHNOLOGIES GMBH
    Inventors: Volker Krisch, Hardy Bismark, Bernhard Mueller, Jurgen Hofmann, Bertrand Roland
  • Patent number: 7014810
    Abstract: The present invention relates to an apparatus for producing solid active ingredient-containing forms from an active ingredient-containing formulation which comprises at least one polymeric binder. The apparatus according to the invention has at least one extruder 1 for continuous plastication of the formulation and at least two injection units 2 which are provided separate from one another, each of which is connected to the extruder 1, and through which the formulation can be injected into at least one mold 3.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: March 21, 2006
    Assignee: Abbott GmbH & Co. KG
    Inventors: Harald Krull, Jörg Rosenberg, Jörg Breitenbach, Jürgen Hofmann, Rainer Klenz, Hans Bührle
  • Patent number: 6945687
    Abstract: The present invention relates to a mixing apparatus at least composed of a screw-based machine S1 and a screw-based machine S2, where S1 has heating equipment, at least in the plasticizing and homogenizing zone, and where the outlet from S2 has been connected to the screw-containing barrel of S1, within the plasticizing or homogenizing zone of S1, a substantive feature of which is that the connection between S1 and S2 is brought about by a connector which has cooling equipment effective as far as the inner wall of the screw-containing barrel of S1, and to a process for preparing thermoplastically processable molding compositions, in particular additive masterbatches, from at least one thermoplastic component C1 and at least one component C2, where the melting point or decomposition temperature TMC2 of C2 is lower, by at least about 50° C., than the temperature THC1, which is the lower limit of the thermoforming range of C1, and where most of C2 is melted only after contact with C1.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: September 20, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Güntherberg, Jürgen Hofmann, Elmar Mailahn, Hilmar Ohlig
  • Publication number: 20050204390
    Abstract: In a radio communication system with at least one radio network control device, at least one base station is connected to at least one user station by a radio communication interface. The base station(s) and the radio network control device are components of a base station subsystem. The radio network control device is connected to an access device for a core network. The radio network control device and the user station(s) have a service specific key that is preferably valid for several user stations, or in other words, the service specific key is not user specific.
    Type: Application
    Filed: April 30, 2003
    Publication date: September 15, 2005
    Inventors: Jurgen Hofmann, Jorg Schniedenharn, Lars Wehmeier
  • Publication number: 20050202858
    Abstract: The invention relates to a method for increasing the precision during the determination of system parameters dependent on the propagation delay, e.g. for a positional determination, in a mobile communications system with emission diversity, according to which a subscriber data signal and a reference signal are assigned to a subscriber. The subscriber data signal is emitted by at least two antenna devices on the emission side, whereas the reference signal is emitted exclusively by one antenna device on the emission side. The reference signal is used to precisely determine signal propagation delays, upon which the system parameters depend.
    Type: Application
    Filed: June 20, 2003
    Publication date: September 15, 2005
    Inventors: Michael Farber, Jurgen Hofmann, Karel Sotek
  • Publication number: 20050101208
    Abstract: A process for producing thin absorbent planar structures which may be used in hygiene products such as diapers, incontinence products, wound contact materials or sanitary napkins to absorb body fluids, comprises the steps of: A) producing a mixture of an adhesive in dispersion form and a particulate absorbent by fluidizing the components, B) applying the mixture of adhesive and absorbent uniformly to the surface of one side of a first planar backing material, C) one side of a second planar backing material is applied to the mixture of adhesive and absorbent that is present on the surface of one side of the first planar backing material, so producing a sandwichlike intermediate, and D) the sandwichlike intermediate is processed to the end product at a temperature of at least 90° C., a pressure of from 4 to 50 bar, and a pressing time of from 0.5 to 5 min.
    Type: Application
    Filed: February 15, 2002
    Publication date: May 12, 2005
    Inventors: Wolfgang Heider, Jürgen Hofmann, Mariola Wanior, Rüdiger Funk, Ulrike Licht, Michael Ehle
  • Patent number: 6808211
    Abstract: In a coupling for the connection of a washing-liquid pipe in a motor vehicle to another component, a catching element (3) designed for connecting two coupling parts (1, 2) has a shell (9) of C-shaped cross section intended for gripping. Catching noses (6) project radially inwardly from the shell (9). By this, mounting and demounting of the catching element (3) are especially simple.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: October 26, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jürgen Hofmann, Rolf-Dieter Schlein
  • Publication number: 20040195930
    Abstract: An electric machine includes a shaft and a rotor core mounted onto the shaft and formed of a plurality of stacked laminations. The rotor core has opposite end surfaces for attachment of a plate in such a manner as to allow an axial deflection of the laminations in the area of the plate.
    Type: Application
    Filed: February 27, 2004
    Publication date: October 7, 2004
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Siegfried Fichtner, Jurgen Hofmann, Karl Mussig, Daniel Verhoeven
  • Publication number: 20040186229
    Abstract: A process for continuous production of crosslinked fine particles of polymer gel by copolymerizing
    Type: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Wilfried Heide, Stefan Wickel, Thomas Daniel, Joachim Nilges, Jurgen Hofmann
  • Publication number: 20040144605
    Abstract: A piston, which has a piston rod, is guided with freedom of axial movement in a cylindrical pressure tube. At one end of the pressure tube, the piston rod passes through an opening in an end wall, which closes off the end of the pressure tube. The pressure tube is surrounded by a heat-shrink sleeve, which, at the exit end of the piston rod, extends more-or-less radially inward and has a pass-through opening through which the piston rod extends. The ring-shaped end surface at the piston rod exit end of the pressure tube is enclosed by the heat-shrink sleeve.
    Type: Application
    Filed: October 31, 2003
    Publication date: July 29, 2004
    Applicant: Stabilus GmbH
    Inventors: Peter Thurmann, Hans Ihrlich, Arnold Schilz, Hans Jurgen Hofmann, Ines Kistenbrugger, Michael Auer
  • Patent number: 6758505
    Abstract: A locking-mechanism control means having a push rod which controls the adjustment of door-mounted catches, it being possible for the catches to be locked in relation to the door frame, having a first and a second adjustable blocking device arranged in the door. It is further possible for said blocking devices to be adjusted in dependence on the door movement, and one of the blocking devices arresting the push rod in the open position when the door is open. A driver is provided on the push rod and can be coupled to a rod which executes a movement corresponding to the push rod in order for an arresting unit, which engages with the door in the closed state of the latter, to be displaced out of engagement with the door in the open position of the latter.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: July 6, 2004
    Assignee: Sommer Metallbau-Stahlbau GmbH & Co. KG
    Inventors: Dieter Hautmann, Oliver Sommer, Jürgen Hofmann
  • Patent number: 6717090
    Abstract: An arc quenching configuration for an electrical switching device has an arcing chamber in which an arc is produced between a stationary contact piece and a moving contact piece during a switching operation. An arc splitter stack is provided and has a number of arc splitter plates and into which the arc is passed via guide rails. At least one plate composed of an insulating material is disposed in or adjacent to the arc splitter stack, an external circumference of the plate does not project beyond the external circumference of the arc splitter plates, and the plate has an internal recess.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: April 6, 2004
    Inventors: Klaus Kling, Richard Kommert, Alexander Rab, Jürgen Hofmann, Patrick Claeys
  • Patent number: 6710141
    Abstract: A process for continuous production of crosslinked fine particles of polymer gel by copolymerizing a) water-soluble monoethylenically unsaturated monomers, b) from 0.001 to 5 mol % based on the monomers (a) of monomers containing at least two ethylenically unsaturated double bonds, and c) from 0 to 20 mol % based on the monomers (a) of water-insoluble monoethylenically unsaturated monomers in from 20 to 80% by weight aqueous solution in the presence of an initiator at from 0 to 140° C.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: March 23, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Wilfried Heide, Stefan Wickel, Thomas Daniel, Joachim Nilges, Jürgen Hofmann
  • Patent number: 6708898
    Abstract: In the case of a fluidic nozzle (12) a nozzle body (13) is fixed in a housing (17) by a form-locking latching connection (18). For this purpose, an elastically deformable latching body (14) engages in a recess (16) of the housing (17). The operational position of the nozzle body (13) is thereby defined with high accuracy, with the result that an undesirable escape of the liquid between the nozzle body (13) and the housing (17) is prevented. Furthermore, at the same time the contact surface can be reduced here to a section (20) which is inclined toward an outlet opening (19) of the fluidic nozzle (12) and has a correspondingly improved sealing.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: March 23, 2004
    Assignee: Mannesmann VDO AG
    Inventors: Bernd Hoffmann, Jürgen Hofmann
  • Publication number: 20030183979
    Abstract: The invention relates to a mixing device comprising at least one screw injection moulding machine (S1) and a screw injection moulding machine (S2). (S1) is provided with heating devices at least in the plasticising and homogenising section, and the outlet pertaining to (S2) is connected to the screw cylinder of (S1) in the plasticising or homogenising section pertaining to (S1). It is essential that (S1) and (S2) are connected by means of a connecting device provided with a cooling device which acts up to the inner wall of the screw cylinder of (S1). The invention also relates to methods for producing thermoplastically processable moulding materials, especially additive batches, consisting of at least one thermoplastic component (K1) and at least one component (K2). The melting or decomposition temperature (TSK2) of (K2) is at least ca. 50° C. lower than the temperature (TWK1) which limits the lower end of the thermoforming range of (K1), (K2) only largely being melted after coming into contact with (K1).
    Type: Application
    Filed: April 2, 2003
    Publication date: October 2, 2003
    Inventors: Norbert Guntherberg, Jurgen Hofmann, Elmar Mailahn, Hilmar Ohlig
  • Publication number: 20030111847
    Abstract: The invention relates to a locking-mechanism control means having a push rod (1) which controls the adjustment of door-mounted catches (2), it being possible for the catches (2) to be locked in relation to the door frame, having a first and a second adjustable blocking device (24, 26) arranged in the door, it being possible for said blocking devices to be adjusted in dependence on the door movement, and one of the blocking devices (24, 26) arresting the push rod (1) in the open position when the door is open; a driver (10) is provided on the push rod (1) and can be coupled to a rod (11) which executes a movement corresponding to the push rod (1) in order for an arresting unit (18), which engages with the door in the closed state of the latter, to be displaced out of engagement with the door in the open position of the latter.
    Type: Application
    Filed: July 8, 2002
    Publication date: June 19, 2003
    Applicant: Sommer Metallbau-Stahlbau GmbH & Co. KG
    Inventors: Dieter Hautmann, Oliver Sommer, Jurgen Hofmann
  • Publication number: 20030094439
    Abstract: An arc quenching configuration is described for an electrical switching device. The configuration has an arcing chamber in which an arc is produced between a stationary contact piece and a moving contact piece during a switching operation. An arc splitter stack is provided and has a number of arc splitter plates and into which the arc is passed via guide rails. At least one plate composed of an insulating material is disposed in or adjacent to the arc splitter stack, an external circumference of the plate does not project beyond the external circumference of the arc splitter plates, and the plate has an internal recess.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 22, 2003
    Inventors: Klaus Kling, Richard Kommert, Alexander Rab, Jurgen Hofmann, Patrick Claeys
  • Publication number: 20030080559
    Abstract: In a coupling for the connection of a washing-liquid pipe in a motor vehicle to another component, a catching element (3) designed for connecting two coupling parts (1, 2) has a shell (9) of C-shaped cross section intended for gripping. Catching noses (6) project radially inwardly from the shell (9). By virtue of this, mounting and demounting of the catching element (3) are especially simple.
    Type: Application
    Filed: August 27, 2002
    Publication date: May 1, 2003
    Inventors: Jurgen Hofmann, Rolf-Dieter Schlein