Patents by Inventor Peter Nagel

Peter Nagel 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: 5784357
    Abstract: The invention relates to a packet switching system comprising a plurality of inlet circuits which are used each for multiplying a cell coming in by an inlet line, which are provided for transmission via different switches and for producing a time stamp to be supplied with each cell, and the system comprising a plurality of outlet circuits used for selecting a cell to be conveyed by an outlet line from a plurality of received cells that have the same time stamp. An inlet circuit is provided for furthermore producing an inlet number that features the inlet circuit and that is to be supplied with each cell, and the outlet circuit is provided for establishing the correct order of successive cells based upon the time stamp and the inlet number.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: July 21, 1998
    Assignee: U.S. Philips Corporation
    Inventors: Roland Wolker, Peter Nagel
  • Patent number: 5641355
    Abstract: An extrusion coater for the production of a magnetic recording medium having at least one coater slot is described, the lower lip arranged in a direction opposite to the running direction of the substrate and displaced forward relative to the upper lip containing, in its interior, a permanent magnet which is oriented approximately parallel to the upper edge of the lower lip and whose field lines are roughly perpendicular to the coating direction of the magnetic dispersion flowing through the coater slot. By means of this arrangement, it is possible substantially to reduce the layer thickness while achieving a satisfactory coating and also considerably to reduce the edge bead.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: June 24, 1997
    Assignee: BASF Magnetics GmbH
    Inventors: Michel Munch, Ingo Blaul, Peter Nagel
  • Patent number: 5177904
    Abstract: A method for machining a workpiece bore in a single working stroke utilizes a honing tool with a preset honing surface fixed in a radial position corresponding to the desired end size of the bore during the work cycle and measures the finished project for calibration and repositioning of the work surface prior to the honing of a second bore during a second work cycle.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: January 12, 1993
    Assignee: Nagel Maschinen-und Werkzeugfabrik GmbH
    Inventors: Peter Nagel, Wolf Nagel
  • Patent number: 5155944
    Abstract: A method and device for honing a workpiece surface to be machined to provide a finished size and surface configuration comprising a honing tool with adjustable honing elements, the elements having a cutting zone and a calibrating zone, and also comprising a guide element with a surface sized to the finished size of the workpiece surface such that on the cutting stroke of the tool the cutting zone performs the cut and the tool is guided by the movement of the calibrated zone through the guide element and the honed surface.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: October 20, 1992
    Assignee: Nagel Maschinen-und Werkzeugfabrik GmbH
    Inventors: Peter Nagel, Wolf Nagel
  • Patent number: 5088237
    Abstract: A honing tool for machining a workpiece bore (40) in one working stroke with honing coatings (22) set in fixed manner to the desired size of the bore, has on a non-readjustable part of the tool body (12) and preferably in the vicinity of a guide zone (28), air measuring nozzles (33). During the tool return stroke, these nozzles are subject to an action through the bore and measure the final size of the latter following the working zone (24). Optionally a readjustment can be automatically initiated as a function of the result.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: February 18, 1992
    Assignee: Nagel Maschinen-und Werkzeugfabrik GmbH
    Inventors: Peter Nagel, Wolf Nagel
  • Patent number: 5007536
    Abstract: A packaging container for a plurality of circular recording media is formed from substantially identical container parts which, after being combined, have a continuous longitudinal tooth system in the circumferential direction and at least one partial transverse tooth system in the radial direction. Toothed edge parts of the container parts engage one another. Stacking means are provided. Recording media to be packaged are any type of recording media in circular form, such as wound films, magnetic tapes or recording disks.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: April 16, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietmar Huebner, Peter Nagel, Ekkehard Hirschberg, Klaus Schoettle, Bozidar Pavelka
  • Patent number: 4982634
    Abstract: The conventional multiple-spindle automatic lathes are expensive on account of their complicated construction, and the production output and production possibilities are limited on account of the restricted number of work spindles utilized. The novel automatic lathe is to offer higher production outputs and more universal manufacturing possibilities with a simpler construction.The basic structure of an automatic lathe with eight tool spindles (10) for the manufacture of workpieces in eight successive machining stations resides in that, additionally to the number of basic tool stations (1 through 8), each basic tool station, except for the first, is once more included as an additional tool station (2 through 8) arranged in the same sequence of machining upstream of the basic tool stations (1 through 8) so that the total number of machining stations amounts to N=2n-1, a loading and unloading station being provided at the tool station (1).
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: January 8, 1991
    Inventors: Peter Nagel, Franz Schmid
  • Patent number: 4775553
    Abstract: Magnetic recording media are produced by dispersing pulverulent magnetic material in a mixture of a solvent, an organic polymer binder, a dispersant and other conventional additives, with the aid of a conventional dispersing apparatus and using a particular ceramic grinding medium, applying the resulting dispersion in the form of a layer on a base and then compacting the layer.
    Type: Grant
    Filed: July 22, 1986
    Date of Patent: October 4, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Jenoe Kovacs, Peter Engelhardt, Hermann Roller, Lothar Schwarz, Peter Nagel
  • Patent number: 4597990
    Abstract: A process for the preparation of a magnetic recording medium by dispersing pulverulent magnetic material in a binder mixture which is dissolved in an organic solvent and essentially consists of an elastomeric polyurethane and a high molecular weight hydroxyl-containing polymer, with addition of dispersing assistants and conventional additives, applying a layer of the dispersion, to which a diisocyanate and/or polyisocyanate has first been added, to a base material and the solidifying the layer and crosslinking the binder matrix, wherein the diisocyanate and/or polyisocyanate is added to the dispersion and, before applying the dispersion to the base, from 15 to 55% of the NCO groups present react with the hydroxyl-containing polymer of the binder mixture.
    Type: Grant
    Filed: August 27, 1985
    Date of Patent: July 1, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Hermann Roller, Joachim Hack, Uwe Woweries, August Lehner, Werner Grau, Peter Nagel, Roland Falk
  • Patent number: 4557947
    Abstract: A process for polishing the ground surfaces of magnetic storage disks which consist of a rigid substrate provided on both sides with a firmly adhering magnetic coating consisting of a magnetic material finely dispersed in an organic polymer and conventional additives, by pressing felt rings or felt disks against the moving magnetic storage disk, to the surface of which an aqueous emulsion containing butyl acetate with or without butane-1,4-diol is applied.
    Type: Grant
    Filed: March 4, 1980
    Date of Patent: December 10, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Deimling, Roland Falk, Aribert Krug, Peter Nagel, Rudolf Sand
  • Patent number: 4333418
    Abstract: Magnetic recording media in which, following application of the magnetic dispersion to a web of tape base material, the magnetic particles are oriented in a preferred direction and the magnetic dispersion is dried to fix the magnetic particles in their oriented position. To assist the orienting action of the orientation magnet, a blanket is located between the latter and the coating device, which blanket is caused to make sliding contact with the applied magnetic layer.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: June 8, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Nagel, Klaus Schoettle, Reinrich Wittkamp, Karl Hauck
  • Patent number: 4201486
    Abstract: A process and apparatus for the manufacture of magnetic recording media, in which, immediately before the magnetic dispersion is applied to a base, the dispersion is subjected to shear by means of a disc rotatably mounted in a housing, by introducing it at the center of rotation of the disc and forcing it through a gap formed between the face of the disc and the wall of the housing, which gap tapers toward the rim of the disc.
    Type: Grant
    Filed: May 11, 1978
    Date of Patent: May 6, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Werner Huebner, Job-Werner Hartmann, Friedrich Domas, Peter Nagel, Paul Deigner, Eberhard Koester, Hans Hauser
  • Patent number: 4029249
    Abstract: A high-speed roller system for transporting webs of sheeting, preferably for coating the same with a magnetic layer, comprising a suction roller for control of the speed of the web, which suction roller has a surface containing grooves, preferably rhombic grooves, in which the perforations for sucking the sheeting are disposed, preferably at the points of intersection, the ratio of the total cross-sectional area of the perforations to the total surface area of the roller being from 0.7 to 3%.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: June 14, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Nagel, Werner Grau, Hermann Maier, Heinrich Wittkamp, Roland Falk, Paul Willmann