Patents Represented by Attorney Allison C. Collard
  • Patent number: 4118058
    Abstract: A tool for the contact-free support of discs by gas streams impinging on discs when emerging from the supporting face of the tool at an acute angle to the disc surface, which comprises a body having a supporting face, bores within said body for connection with an extraneous gas reservoir, means in said body directed at an acute angle with respect to the supporting face for discharge of gas flowing from the reservoir, said flow-through means consisting of nozzles or recesses being position at equal distance from each other on the surface of a cone whose base is enclosed by a circle concentric with an imaginary circle on the supporting face, said circle having a diameter of 0.2-0.6 supporting face-diameters, the cone having an angle of 20.degree.-150.degree. at the apex, and wherein the distance of the flow-through means on the surface of the cone is from 2/3r.pi. to 0r, measured at the periphery of the circle, and the radial widths of the flow-through means in the supporting face are about 0.
    Type: Grant
    Filed: March 2, 1977
    Date of Patent: October 3, 1978
    Assignee: Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
    Inventors: Oskar Rahn, Hermann Krause
  • Patent number: 4118522
    Abstract: For various purposes tablets are often provided with a coating. The coating processes are extremely time-consuming. To reduce the time for the manufacture of dragees the liquid coating material is applied to the tablet kernels in a vacuum.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: October 3, 1978
    Inventor: Bruno Stellmach
  • Patent number: 4118657
    Abstract: In a circuit arrangement for providing a periodic saw-tooth current in a coil, e.g. a kinescope deflector coil, comprising a one-way conducting device that connects the coil to a voltage source, and a controllable switching device having a control electrode connectable to a periodic pilot-pulse source that makes the switching device conductive during part of the saw-tooth cycle, the switching device being connectable to a current source through an induction coil, including a capacitor that is charged by the current source by means of the induction coil when the switching device is not conductive, the improvement wherein the capacitor is connected to the primary winding of a transformer, the secondary winding of the latter being connected to the one-way conducting device, and wherein the time during which the switching device conducts and the capacitor discharges are longer than the return time of the saw-tooth cycle.
    Type: Grant
    Filed: February 18, 1977
    Date of Patent: October 3, 1978
    Inventor: Attilio Farina
  • Patent number: 4115881
    Abstract: An improved toilet flushing assembly is provided of the type which includes a water tank, a water discharge pipe disposed at least partially within the tank, and which has an opening at the upper end thereof, defining a primary flush valve seat, a flush valve ball communicative with the flush valve seat, means for moving the flush valve ball between an open and closed position relative to the primary flush valve seat, and a generally upstanding overflow pipe disposed within the tank and having a lower open end which communicates with the discharge pipe. The improved assembly provides an overflow pipe having an opening therein disposed at a level above the primary valve seat, which opening defines a secondary flush valve seat.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: September 26, 1978
    Inventor: Andrew Joseph Stone
  • Patent number: 4115077
    Abstract: Resinoid abrasive wheels are continuously produced by preparing pore forming granules having predetermined mechanical strength and containing a substance thermally decomposable at a baking temperature for the production of resinoid abrasive wheels, kneading together the pore forming granules, abrasive grins, a binder, a glass fiber reinforcement and a filler to prepare an abrasive composition, molding the abrasive composition into a block, heating the block by a high frequency heater, rolling the heated block into a sheet by rolls, blanking out circular pieces from the sheet, and baking the circular pieces of the uncured abrasive composition containing the pore forming granules uniformly dispersed therein to cure the binder and form pores by the decomposition of at least part of the thermally decomposable substance contained in the granules, whereby resinoid abrasive wheels having pores uniformly dispersed therein are obtained.
    Type: Grant
    Filed: July 1, 1977
    Date of Patent: September 19, 1978
    Inventor: Heijiro Fukuda
  • Patent number: 4114205
    Abstract: A suana includes a wooden housing, having a closable entryway and a heating device and a humidifier, each of which is disposed in the housing, and includes a control element for respectively regulating the temperature and humidity in the housing. At least one pair of space-apart electrodes are disposed opposite one another in said housing for creating an electric field within the inner space of the housing, and at least one irradiation lamp is also disposed in the housing for creating light within the total visible spectrum of light, including UV and IR irradiation.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: September 19, 1978
    Inventor: Gunter Muller
  • Patent number: 4113532
    Abstract: A process for producing large-size, substrate-based semiconductor material of silicon deposited on a substrate body from the gaseous phase, which comprises the steps of heating a substrate body by direct current passage to deposition temperature, contacting said body with a gaseous silicon-containing mixture to which a dopant has been added, until a deposit having a thickness from about 10 to 200 .mu.m has been formed, subsequently melting 80 to 100% of the deposited silicon layer from the free surface downward, and resolidifying the molten silicon by adjustment of a temperature gradient from the substrate body upward. Large-sized plates obtained by cutting up the semiconductor material are used as solar cells.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: September 12, 1978
    Assignee: Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
    Inventors: Bernhard Authier, Rudolf Griesshammer, Franz Koppl, Winfried Lang, Erhard Sirtl, Heinz-Jorg Rath
  • Patent number: 4112057
    Abstract: Halogenosilanes and halogenogermanes which are contaminated by a boron-coining impurity are purified by treatment with an effective amount of a hydrated metal oxide or a hydrated silicate containing from about 3 to about 8% by weight of water, and then distilling the treated halogenosilane or halogenogermane at a temperature about 3.degree. to about 15.degree. C above its boiling temperature, and at atmosphere pressure.
    Type: Grant
    Filed: October 14, 1976
    Date of Patent: September 5, 1978
    Assignee: Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
    Inventors: Winfried Lang, Dietrich Schmidt, Johann Hofer, Rudolf Pachnek, Heinz-Jorg Rath
  • Patent number: 4111742
    Abstract: A process for making crucible-drawn silicon rods containing volatile doping gents, especially antimony, said rods having narrow resistance tolerances, which comprises drawing from a pre-doped silicon melt a monocrystalline rod while passing through the melt a current of inert gas either intermittently or continuously.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: September 5, 1978
    Assignee: Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
    Inventors: Heinz-Jorg Rath, Dietrich Schmidt, Werner Zulehner
  • Patent number: 4111093
    Abstract: A string instrument, such as a guitar, includes an instrument body, a neck portion, pivotably coupled to the body by means of a joint, to permit pivotal movement of the neck portion between an operative and a folded position, a string mount moveably mounted on the body, at least one string, one end portion of which is secured to the string mount and the other end portion of which is secured to the neck portion, and drive means for moving the spring mount, which is coupled to the spring mount and the joint. The drive means moves the spring mount in direct response to pivotal movement of the neck portion about the joint, so as to maintain the original length and tension of the at least one string, when the neck portion is moved between the operative and folded positions thereof.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: September 5, 1978
    Inventors: Roger Field, Thomas Steger
  • Patent number: 4110586
    Abstract: Process for doping a semiconductor rod which comprises securing a semicontor rod containing a dopant and having a substantially smaller cross section than the rod to be doped against said rod, with the axes of the two rods substantially parallel to one another, both rods consisting of the same semiconductor material, fusing the two rods into a single rod and subjecting the rod so formed to a crucible zone melting process either subsequently or simultaneously.
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: August 29, 1978
    Assignee: Wacker-Chemitronic Gesellschaft fur Elektronik-Grundstoffe mbH
    Inventors: Franz Kohl, Walter Hoch
  • Patent number: 4110794
    Abstract: A word processing system for displaying and reproducing a plurality of alphanumeric characters on a solid state display and capable of printing from that display consisting of a housing containing an electronic keyboard with indicia markings on the keys. There is provided at least one solid state display device disposed adjacent to the housing and having a multitude of segments for reproducing the indicia identified on the keyboard. A logic means is connected to the keyboard and the solid state display, and scans the keyboard upon the depression of one or more keys to find out the identity of the keys depressed. A solid state memory is also connected to the logic means and contains coded information concerning the keyboard indicia so that a character can be generated and reproduced on the solid state display responsive to the keyed indicia.
    Type: Grant
    Filed: February 3, 1977
    Date of Patent: August 29, 1978
    Assignee: Static Systems Corporation
    Inventors: Robert W. Lester, Robert Hotto
  • Patent number: 4109683
    Abstract: A throttle valve formed from two jackets each having through bores. Each jacket includes two groups of bores, one group of bores being equally spaced from each other and the other group of bores having an intermediate bore unequally spaced from the outer end bores. The jackets are rotatable relatively to each other so as to align the bores for maximum and minimum flow.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: August 29, 1978
    Assignee: Gestra-KSB Vertriebsgesellschaft
    Inventor: Wilhelm Strache
  • Patent number: 4109128
    Abstract: Method for the production of dislocation-free, monocrystalline semiconduc rods with large diameters by crucible-free zone melting, which comprises producing the melting zone in a uniform electromagnetic field substantially symmetrical to the rod axis. The invention also relates to an induction heating coil for carrying out the method.
    Type: Grant
    Filed: August 17, 1976
    Date of Patent: August 22, 1978
    Assignee: Wacker-Chemitronik Gesellschaft fur Elektronik-Grundstoffe mbH
    Inventor: Franz Kohl
  • Patent number: D249221
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: September 5, 1978
    Assignee: Oxford Hall Silversmiths, Ltd.
    Inventor: Ben Seibel
  • Patent number: D249320
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: September 12, 1978
    Assignee: Oxford Hall Silversmiths, Ltd.
    Inventor: Ben Seibel
  • Patent number: D249328
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: September 12, 1978
    Inventor: Robert E. Fields
  • Patent number: D249625
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: September 26, 1978
    Assignee: Oxford Hall Silversmiths, Ltd.
    Inventor: Ben Seibel
  • Patent number: D249626
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: September 26, 1978
    Assignee: Oxford Hall Silversmiths, Ltd.
    Inventor: Ben Seibel
  • Patent number: D249635
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: September 26, 1978
    Assignee: Azlon Products Ltd.
    Inventor: Barry J. Elliott