Patents Assigned to Heraeus GmbH
  • Electronic or ionic optical apparatus
    Patent number: 4270053
    Abstract: Electronic or ionic optical apparatus having baffled wall areas wherein the individual baffles are constructed and positioned such that a maximum probability is created for particles departing from the desired paths through the apparatus to pass through the baffles. A chamber is preferably provided behind the baffled wall areas which is closed off except for the openings between the individual baffles.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: May 26, 1981
    Assignee: Leybold-Heraeus GmbH
    Inventor: Hermann Froitzheim
  • Method and arrangement for operating gas examining apparatuses
    Patent number: 4262522
    Abstract: A method of operating a gas examining apparatus which has a gas examining device such as a mass spectrometer, a chamber communicating with the gas examining device, a gas pump communicating with the chamber and a probe hose coupled to the chamber for introducing into the apparatus gas to be examined. According to the method, in case probe hoses of different lengths or different quantities are used, the gas examination is so performed that the pressure in the above-mentioned chamber arranged upstream of the gas examining apparatus is maintained constant.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: April 21, 1981
    Assignee: Leybold-Heraeus GmbH
    Inventor: Gunter Reich
  • Electroslag remelting apparatus with coaxial current paths
    Patent number: 4262159
    Abstract: An electroslag remelting arrangement for remelting consumable electrodes into ingots, in which the ingot mold power connection is mounted beneath the mold upper edge on the ingot mold or on the mold floor, and is led away downwardly. The electrode current connection has at least two stationary bus bars which extend continuously from the connection point of the ingot mold to the maximum stroke height of the electrode feed device. The bus bars, moreover, run coaxially or quasi-coaxially with respect to the ingot mold, and are electrically connected to the consumable electrode by sliding contacts and connecting leads.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: April 14, 1981
    Assignee: Leybold-Heraeus GmbH
    Inventors: Helmut Grof, Otto Stenzel, Werner F. Thomas, Anton Wamser, Uwe Reimpell
  • Vacuum coating apparatus with continuous or intermittent transport means
    Patent number: 4261808
    Abstract: Vacuum coating apparatus having a vacuum chamber containing at least one cathode system and having a system for the continuous or intermittent transport of substrates during the coating. The transport system includes flexible, endless conveyor means in pairs guided in the manner of two parallel chain drives over wheel pairs positioned at a distance from one another in the formation of two straight runs. The substrates are fastened to the conveyors so as to be movable parallel to the cathode system. The straight runs of each endless conveyor is guided vertically at least in the area of the cathode systems.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: April 14, 1981
    Assignee: Leybold-Heraeus GmbH
    Inventor: Heinz Walter
  • Closure fixture and assembly cap
    Patent number: 4259979
    Abstract: A closure fixture has a slide member or valve for radioactive and toxic media, a fixture housing, a housing cover connected to the housing via a first sealing surface and a closure device with a drive mechanism arranged on the housing cover. The housing fixture comprises an additional sealing surface and an assembly cap has an interior configured to receive the housing cover, an enclosure device and is sealingly mountable to the additional sealing surface. The assembly cap comprises at least one manipulating device for transferring the housing cover together with the closure device into the interior of the assembly cap.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: April 7, 1981
    Assignee: Leybold - Heraeus GmbH
    Inventors: Uwe Reimpell, Reinhard Reiter, Lutz Grein
  • Coupling for stationary and movable vacuum chambers
    Patent number: 4258645
    Abstract: Coupling valve for joining stationary and movable evacuatable chambers having confronting chamber walls displaced parallel with respect to each other. A first frame is fastened to one chamber wall and is joined by a resilient member to a second movable frame which can be brought into engagement with the other chamber wall. The movable frame is provided with at least one actuator by which it can be tightened against the confronting chamber wall.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: March 31, 1981
    Assignee: Leybold-Heraeus GmbH
    Inventors: Hans Aichert, Friedrich Stark, Herbert Stephan, Otto-Horst Hoffmann
  • Electrical melting apparatus with multiple electrode holding arms
    Patent number: 4251678
    Abstract: Electrical melting apparatus having a vertical column equipped with guides for at least two electrode feeders each of which have C-shaped carriages partly encompassing the column such that the individual electrode feeders can move past each other without interference.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: February 17, 1981
    Assignee: Leybold-Heraeus GmbH
    Inventors: Helmut Grof, Anton Wamser, Uwe Reimpell
  • Cathodic system with target, for vacuum sputtering apparatus for the application of dielectric or nonmagnetic coatings to substrates
    Patent number: 4247383
    Abstract: A cathodic system has a planar target for use in an atomizing apparatus for the sputtering of a dielectric or nonmagnetic coating onto a substrate. The cathodic system includes a magnetic field generator disposed on the side of the target opposite from that of the substrate and is constructed in the form of a planar coil which is disposed parallel to the target and has an area which corresponds substantially to the area of the target. The planar coil is insulated from the target and is cooled during use.
    Type: Grant
    Filed: August 2, 1978
    Date of Patent: January 27, 1981
    Assignee: Leybold Heraeus GmbH
    Inventors: Walter Greve, Edgar Kaiser, Dieter Grone, Ulrich Patz
  • High vacuum seal
    Patent number: 4244557
    Abstract: A vacuum-tight closure assembly includes a valve seat; a spreadable valve plate movable into a closed position for assuming a spreaded state in which it sealingly engages the valve seat; and a guide arrangement for a centered guiding of the valve plate during its motion into the closed position. The guide arrangement includes guide faces located in the vicinity of and stationarily with respect to the valve seat and counterguide faces located on and movable with the valve plate. The guide faces cooperate with the counterguide faces during the motion of the valve plate towards the closed position.
    Type: Grant
    Filed: October 3, 1978
    Date of Patent: January 13, 1981
    Assignee: Leybold-Heraeus GmbH
    Inventors: Wilhelm Polhede, Reinhard Reiter
  • Process and apparatus for analyzing a sample with the aid of pulsed laser irradiation
    Patent number: 4243887
    Abstract: A method and apparatus for analyzing a sample comprising the steps of irradiating a selected area of the sample with a first burst of laser energy to vaporize the sample, condensing the vaporized sample on the surface of an intermediate carrier and analyzing the condensed sample material deposited on the intermediate carrier.
    Type: Grant
    Filed: May 1, 1979
    Date of Patent: January 6, 1981
    Assignee: Leybold-Heraeus GmbH
    Inventors: Franz Hillenkamp, Raimund Kaufmann, Eberhard Unsold, Rainer Nietsche, Reiner Wechsung, Henning Vogt, Walter Bank, Lothar Aberle
  • Method and apparatus for vacuum depositing thin coatings using electron beams
    Patent number: 4238525
    Abstract: Method and apparatus for vacuum depositing thin films on substrates which are located above 500.degree. C. by electron beam heating during the deposition. The substrates are positioned above an evaporating crucible filled with a bath of the material being evaporated which is also heated by electron beams. The electron beams are deflected at an angle of less than 80.degree. onto approximately one-half of the bath surface situated between the axis of symmetry and the end of the evaporating crucible.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: December 9, 1980
    Assignee: Leybold-Heraeus GmbH
    Inventors: Hans Aichert, Walter Dietrich, Friedrich Stark, Herbert Stephan
  • Method of vaporizing alloys of metals having different vapor pressures
    Patent number: 4237148
    Abstract: Method for vaporizing alloys containing metals having different vapor pressures from elongated vaporizing crucibles which are fed with the alloy to be vaporized in rod form at several points along the length of the crucible. The alloy is vaporized by direct bombardment of the molten bath surface with electron beams periodically deflected according to a pattern for the deposition of the alloy coating material on a plurality of substrates positioned above the vaporizing crucible. The proportional composition of the alloy to be vaporized is regulated differently over the length of the crucible such that the alloy component with the lowest boiling point (or the highest vapor pressure) is in a smaller proportion in the alloy to be vaporized which is fed to the center of the vaporizing crucible than in the alloy fed to the ends of the vaporizing crucible.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: December 2, 1980
    Assignee: Leybold-Heraeus GmbH
    Inventors: Hans Aichert, Otto-Horst Hoffman, Herbert Stephan
  • Instrument for determining the radiation parameters of a focused charged-particle beam and method
    Patent number: 4233515
    Abstract: Method and device for determining the radiation parameters of a focused beam of charged particles guided periodically over a target surface, especially in an electron beam melting and vaporizing system wherein the target is the surface of a melt. At least one probe is positioned in front of the target surface in the direction of radiation and within the beam trace, the probe being connected to an electrical display device. The output signal of the probe is displayed via a cathode ray tube and the reversal point of the charged-particle beam is determined on the basis of the time interval between the signal peaks in conjunction with the velocity of the beam movement.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: November 11, 1980
    Assignee: Leybold-Heraeus GmbH
    Inventors: Walter Dietrich, Herbert Stephan
  • Method for vapor-coating turbine buckets
    Patent number: 4233342
    Abstract: Method for vacuum depositing corrosion and oxidation resistant alloy coatings on turbine buckets having leading edges and trailing edges, with simultaneous rotation of the turbine buckets about their longitudinal axis in a vapor stream above a vapor source. The time of stay of each element of the surface above the vapor source is varied during a 360.degree. rotation such that it is shortest when the leading edges and the trailing edges are pointed towards the vapor source and longest when the concave and convex flanks are presented to it.
    Type: Grant
    Filed: November 21, 1978
    Date of Patent: November 11, 1980
    Assignee: Leybold-Heraeus GmbH
    Inventors: Hans Aichert, Walter Dietrich, Otto-Horst Hoffmann, Friedrich Stark, Herbert Stephan
  • Method of evaporating melts of alloys of metals having different vapor pressures
    Patent number: 4230739
    Abstract: Method for evaporating melts of alloys of metals of different vapor pressures from continuously fed, large-area evaporating crucibles by direct bombardment of the bath surface with focused electron beams which are periodically deflected according to a pattern. The alloy material is deposited on a plurality of substrates such as turbine blades which are positioned in a field above the evaporating crucible with local adaptation of the energy density to the thermal economy of the melt bath. At least one electron beam is deflected onto at least two substantially rectangular beam fields and is guided in each of these fields through a line raster at a frequency of at least 100 Hz while shifting periodically from one to the other field with a shift frequency of at most 5 Hz.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: October 28, 1980
    Assignee: Leybold-Heraeus GmbH
    Inventors: Hans Aichert, Walter Dietrich, Alfred Hauff, Peter Sommerkamp, Herbert Stephan
  • Heating system for vacuum coating apparatus
    Patent number: 4226587
    Abstract: Pass-through heating device for vacuum coating apparatus having a heating chamber with at least one heating device, a thermal barrier positioned between the walls of the heating chamber and the heating device parallel to the longitudinal axis of the coating apparatus.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: October 7, 1980
    Assignee: Leybold-Heraeus GmbH
    Inventors: Hans Aichert, Otto-Horst Hoffmann, Friedrich Stark, Herbert Stephan
  • Operating mechanism for valves, gates and the like
    Patent number: 4219183
    Abstract: An operating mechanism for valves and the like comprises a housing with a port situated therein which is to be opened and closed. Associated with the port is a seat and a valve plate for closing the port. A rotatable shaft drive mechanism for the valve plate includes a shaft which rotates in one direction to effect movement of the valve plate from its open position to its closed position followed by a pressing movement over the valve plate against the seat and rotates in the other direction to effect movement of the valve plate in the opposite direction. The rotatable shaft drive mechanism includes an intermittent drive for the transformation of the rotatory movement of the shaft to the desired movement of the valve plate.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: August 26, 1980
    Assignee: Leybold-Heraeus GmbH
    Inventors: Otto-Horst Hoffmann, Walter Heil, Friedrich Stark
  • Method for the production of high-purity metal powder by means of electron beam heating
    Patent number: 4218410
    Abstract: High-purity metal powder is made by the electron beam melting of a starting material in rod form in a vacuum wherein the molten metal is momentarily caught on a spinning plate rotating at high speed and flung therefrom and thereafter solidified by cooling. The metal on the spinning plate is bombarded with an electron beam that is so focused and periodically deflected that its focal spot is many times smaller than the diameter of the spinning plate. The beam deflection between the rotational center of the spinning plate and its marginal area is performed such that the spinning plate is scanned in a zone that extends radially of the axis of rotation of the spinning plate and is small in relation to its diameter. Cooling of the metal particles to the point of solidification is accomplished by radiation loss.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: August 19, 1980
    Assignee: Leybold-Heraeus GmbH & Co. KG
    Inventors: Herbert Stephan, Hans Aichert, Joseph Heimerl
  • Apparatus for the zone pulling of monocrystal rods
    Patent number: 4218424
    Abstract: An apparatus for the zone drawing of monocrystal rods comprises a hermetically sealed housing having two rod holders movably disposed rotatably and vertically one over the other within the housing. A stationary high frequency heating system is disposed between the rod holders. Each rod holder comprises one transport slide, a sliding guide and a spindle drive disposed within the housing for the independent vertical movement of the rod holders and one drive for the rotation of the rod holders.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: August 19, 1980
    Assignee: Leybold-Heraeus GmbH & Co. KG
    Inventors: Joachim Floymayr, Karl Jericho, Dietrich Drechsel, Friedrich Bubeck
  • Apparatus for analyzing samples by electromagnetic irradiation
    Patent number: 4214159
    Abstract: An apparatus for analyzing a sample by electromagnetic irradiation includes a vacuum chamber, a support for holding the sample in the vacuum chamber, an arrangement for irradiating the sample with an electromagnetic beam, a mass analyzer disposed in the vacuum chamber, an arrangement for extracting particles from the sample and introducing them into the mass analyzer and a layer of conductive material situated in the vicinity of support in the zone of the sample.
    Type: Grant
    Filed: August 31, 1978
    Date of Patent: July 22, 1980
    Assignee: Leybold-Heraeus GmbH
    Inventors: Franz Hillenkamp, Raimund Kaufmann, Rainer Nitsche, Eberhard Unsold, Reiner Wechsung