Patents Represented by Attorney Howard J. Greenwald
  • Patent number: 5720933
    Abstract: A process for preparing silicon carbide fiber by the carbothermal reduction of silica fiber. In the first step of the process, a specified silica fiber is contacted with a source of elemental carbon to produce a reactant mass; the silica fiber is comprised of at least about 99.5 weight percent of silica, has a density of at least about 2.15 grams per cubic centimeter, has a diameter of from about 1 to about 100 microns and an aspect ratio of at least about 30. From about 3.2 to about 5.0 moles of carbon are present in the carbon source for each mole of the silica. The reactant mass is heated at a temperature of from about 1,400 degrees centigrade to about 2,300 degrees centigrade for at least about 0.5 hours.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: February 24, 1998
    Inventor: Makuteswara Srinivasan
  • Patent number: 5716713
    Abstract: A process for preparing an insulated metallized substrate, wherein a specified metallized substrate is heated from ambient temperature to a peak temperature of at least about 800 degrees centigrade while contacting the substrate with an inert atmosphere containing less than 10 parts per million of oxygen, maintained at such peak temperature for a specified period of time while being contacted with said inert gas, and thereafter heated at a peak temperature of at least about 800 degrees centigrade while being contacted with a gas containing at least 100 parts per million of oxygen.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: February 10, 1998
    Assignee: Ceramic Packaging, Inc.
    Inventors: Kalman F. Zsamboky, Leon M. Balents
  • Patent number: 5705118
    Abstract: A process for preparing a ceramic body in which a ceramic mixture is formed into a green body and thereafter fired. The ceramic mixture is prepared by mixing at least about 40 weight percent of ceramic material and less than about 60 weight percent of gluten with water. At least about 90 weight percent of the particles of ceramic material are smaller than about 20 microns, and at least about 50 weight percent of the particles of ceramic material are from about 0.5 to about 2 microns. The mixture has a pH of from about 2 to about 8.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: January 6, 1998
    Assignee: PolyCeramics, Inc.
    Inventors: Kevin G. Hayes, Peter A. Roberts, Frank R. Spitulnik
  • Patent number: 5702294
    Abstract: A grinding bit for regrinding a component of a constant velocity universal joint which contains a grinding tip, an arbor, and means for removably attaching said grinding tip to said arbor.The arbor has a length of from about 2.0 to about 4.3 inches, the grinding tip has a length of from about 0.7 to about 1.9 inches, and the length of the arbor exceeds the length of the grinding tip by at least about 1.0 inch. The grinding has a head portion with a substantially arcuate shape and has a substrate coated with a abrasive material.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: December 30, 1997
    Assignee: Constant Velocity Systems, Inc.
    Inventors: Lawrence C. Baltazar, John O. Naumann
  • Patent number: 5695225
    Abstract: A connector assembly with an integral connector body of a specified size and shape. The connector body has a substantially hexagonal upper section connected to a first, unthreaded cylindrical section, which in turn is connected to a second threaded cylindrical section, which in turn is connected to a third unthreaded cylindrical section with substantially the same diameter, which in turn is connected is connected to a bottom, undercut, unthreaded section. The assembly also contains an adaptor having a central channel and an external annular sealing groove, a washer disposed within a seal cavity for forming a sealed connection when the body and adaptor are engaged, and a collar for movably connecting the connector body to the adaptor and selectively positioning the external sealing groove with respect to the internal sealing groove.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: December 9, 1997
    Assignee: Spinco Metal Products, Inc.
    Inventor: Stephen G. Grenga
  • Patent number: 5681209
    Abstract: A grinding machine for regrinding a housing of a constant velocity joint which contains a grinding bit, a high speed spindle, a lubricating fluid injection system, and devices for rotating the housing, for moving the housing in the X axis, for moving the housing in the Z axis, and for simultaneously moving the housing in the X and Z axes. The fluid injection system has two coolant nozzles with different volumetric flow rates.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: October 28, 1997
    Assignee: Constant Velocity Systems, Inc.
    Inventors: John O. Naumann, David R. Glass
  • Patent number: 5681153
    Abstract: A two-rotor, sliding member rotary compressor with an inner rotor, an outer rotor, and at least three sliding members between the inner rotor and the outer rotor. The inner rotor has an outer surface which contains at least one flat portion. The inner rotor is supported by support shafts on each of its ends. The compressor is comprised of a first end plate located on a first end of said inner rotor and a second end plate located on a second end of said inner rotor; each of the end plates supports the inner rotor through a set of bearings. The compressor also has a center housing with a circular interior having an inner surface that is eccentric to the inner rotor, an inlet port, and a discharge port. The outer rotor has a circular exterior that surrounds the inner rotor but is eccentric thereto.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: October 28, 1997
    Assignee: Carrier Corporation
    Inventor: Roger C. Weatherston
  • Patent number: 5678882
    Abstract: A motor vehicle comprised of an access opening with a quadrilateral shape defined by a first side, a second side, a third side, and a fourth side. The vehicle contains a plate in contact with at least a portion of the perimeter of the access opening of the motor vehicle, a screen attached to the plate, and a first fabric cover attached to the plate.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: October 21, 1997
    Inventor: John M. Hammond
  • Patent number: 5676414
    Abstract: An apparatus for attaching an enclosure to the back of a motor vehicle which contains an integral plate, at least devices for attaching such plate to the motor vehicle, a cover, a device for attaching the cover to the integral plate, and a device for attaching the cover to the motor vehicle. When the cover is attached to both the integral plate and to the motor vehicle, it encloses the space between the back section of such vehicle and such cover and forms a substantially waterproof enclosure covering the space.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: October 14, 1997
    Inventor: John M. Hammond
  • Patent number: 5673735
    Abstract: A process for storing and delivering gas. In the first step of this process, a multiplicity of at least four gas banks is filled with compressed gas to a specified pressure, the gas pressure in each of the gas banks is sequentially measured, a control system sequentially selects one of the gas banks and withdraws gas from it to the device to be filled until the rate of gas flow is less than optimum, the control system then withdraws gas from the next sequential of the gas banks while replenishing the gas in the first depleted of said gas banks.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: October 7, 1997
    Assignee: Aurora Technology Corporation
    Inventors: Paul M. Crvelin, Douglas B. Armstrong
  • Patent number: 5674721
    Abstract: Novel dividing cells of the yeast Saccharomyces. A first portion of dividing yeast cells is transformed with DNA encoding superoxide dismutase protein and DNA encoding catalase protein, and a second portion of yeast cells is not transformed with DNA grown at the same cell density as the first portion. When both portions of cells are heated in the presence of oxygen containing gas to a temperature of 50 degrees Celsius and are maintained at such temperature for 20 minutes, at least twice as many cells of the first portion of cells survive.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: October 7, 1997
    Inventors: Peter H. Bissinger, Robert H. Schiestl, John F. Davidson
  • Patent number: 5669655
    Abstract: An apparatus for attaching an enclosure to a motor vehicle. The device contains a substantially quadrilaterally shaped plate, a first device for attaching the plate to the motor vehicle, a second device for attaching the plate to the motor vehicle, a substantially weatherproof cover, and fastening structure for attaching the cover to the plate.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: September 23, 1997
    Inventor: John M. Hammond
  • Patent number: 5666017
    Abstract: A lamp for producing a spectral light distribution which is substantially identical in uniformity to the spectral light distribution of a desired daylight throughout the entire visible light spectrum from about 380 to about 780 nanometers. The lamp contains a lamp envelope comprised of an exterior surface, a light-producing element substantially centrally disposed within said lamp envelope, and a coating on said exterior surface of said lamp envelope.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: September 9, 1997
    Assignee: Tailored Lighting Inc.
    Inventor: Kevin P. McGuire
  • Patent number: 5660774
    Abstract: A process for producing a sintered body from untra-fine superconductive particles. In the first step of this process, a ceramic precursor material containing yttrium, barium and copper cations, a nitrogen-containing material, a solvent, and an anion capable of participating in an anionic oxidation-reduction reaction with the nitrogen-containing material, is provided; the nitrogen-containing material contains at least three nitrogen atoms, at least one oxygen atom, and at least one carbon atom. In the second step of the process, droplets of such ceramic precursor material are formed. In the third step of the process, the droplets are dried until particles which contain less than about 15 weight percent of solvent are produced. In the fourth step of this process, such particles are ignited in an atmosphere which contains substantially less than about 60 weight percent of the solvent's saturation value in such atmosphere.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: August 26, 1997
    Assignee: Alfred University
    Inventors: Gregory C. Stangle, Koththavasal R. Venkatachari, Steven P. Ostrander, Walter A. Schulze, John D. Pietras
  • Patent number: 5660772
    Abstract: A process for producing ultra-fine barium hexaferrite particles. In the first step of this process, a ceramic precursor material containing barium and trivalent ferric cations, a nitrogen-containing material, a solvent, and an anion capable of participating in an anionic oxidation-reduction reaction with the nitrogen-containing material, is provided. In the second step of the process, droplets of such ceramic precursor material are formed. In the third step of the process, the droplets are dried until particles which contain less than about 15 weight percent of solvent are produced. In the fourth step of this process, such particles are ignited in an atmosphere which contains substantially less than about 60 weight percent of the solvent's saturation value in such atmosphere.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: August 26, 1997
    Assignee: Alfred University
    Inventors: Gregory C. Stangle, Koththavasal R. Venkatachari, Steven P. Ostrander, Walter A. Schulze, John D. Pietras
  • Patent number: 5660773
    Abstract: A process for producing ultra-fine yttrium-iron-garnet particles. In the first step of this process, a ceramic precursor material containing yettrium and ferric cations, a nitrogen-containing material, a solvent, and an anion capable of participating in an anionic oxidation-reduction reaction with the nitrogen-containing material, is provided. In the second step of the process, droplets of such ceramic precursor material are formed. In the third step of the process, the droplets are dried until particles which contain less than about 15 weight percent of solvent are produced. In the fourth step of this process, such particles are ignited in an atmosphere which contains substantially less than about 60 weight percent of the solvent's saturation value in such atmosphere.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: August 26, 1997
    Assignee: Alfred University
    Inventors: Gregory C. Stangle, Koththavasal R. Venkatachari, Steven P. Ostrander, Walter A. Schulze, John D. Pietras
  • Patent number: 5653494
    Abstract: A sports trailer system comprised of a first removable module, a second removable module, an integrally molded frame shaped and adapted for the nesting of the first removable module and the second removable module within the frame, and a substantially flat floor surface contiguous with the integrally molded frame. The frame contains at least 90 weight percent of nonmetallic material and is an integral, continuous structure comprised of at least three structural cross-member elements and at least two structural longitudinal structural elements.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: August 5, 1997
    Assignee: TransMaster Technologies Inc.
    Inventors: Christopher C. Cleall, Edmund K. Maier
  • Patent number: 5622014
    Abstract: A columbarium structure comprising several niche units, each of which is of a door hingably attached to it. Within each such door, a rotatable element is rotatably mounted.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: April 22, 1997
    Inventor: Hali J. Weiss
  • Patent number: 5613606
    Abstract: An apparatus for holding mail, which contains a first shelf, a second shelf integrally connected to and disposed above and in back of the first shelf, and slide bar devices and simultaneously connecting the apparatus to the front and side walls of a standard four-sided letter tray.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: March 25, 1997
    Assignee: Quicksort, Inc.
    Inventor: Gary M. Meyer
  • Patent number: D390322
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: February 3, 1998
    Inventor: Hali J. Weiss