Patents Represented by Attorney, Agent or Law Firm David G. Rosenbaum
  • Patent number: 4789771
    Abstract: An apparatus and method for heating a substrate and associated rotatable susceptor in an epitaxial deposition reactor with an axially symmetric gas flow carrying deposition material include at least one chamber having a plurality of heat lamps. The chamber is generally symmetric with respect to an axis of the substrate. The chamber walls are coated to reflect light from the heat lamps. The outermost heat lamps can be energized to produce a higher temperature than the centrally located lamps to compensate for regions of the reactor which provide access to the substrate and, therefore, promote thermal losses. The spacing of the heat lamps may be varied to compensate for thermal non-uniformity of the heating cavity. The substrate may be rotated, on the rotatable susceptor, to average the thermal environment to which the substrate is exposed.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: December 6, 1988
    Assignee: Epsilon Limited Partnership
    Inventors: McDonald Robinson, Ronald D. Behee, Wiebe B. deBoer, Wayne L. Johnson
  • Patent number: 4787971
    Abstract: The present invention is directed to providing a column chromatography apparatus and assay method employing the same which is readily adaptable for rapid laboratory separation of chemicals, in particular, organic, inorganic and biochemicals and biomolecules from an eluent fluid, such as a body fluid. In particular, it has been determined that a miniaturized column chromatography apparatus having a multi-stage separatory tube, an associated eluent tube, an adapter and a vented-cap and a non-vented cap is particularly well suited to the rapid assays yielding accurate results which are required in the analytical laboratory or clinical setting.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: November 29, 1988
    Inventor: Alan Donald
  • Patent number: 4786516
    Abstract: A method of drying raw meat is disclosed wherein the meat is predried by a deep frying treatment under a vacuum and is then vacuum freeze-dried.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: November 22, 1988
    Assignee: House Food Industrial Company Limited
    Inventors: Ko Sugisawa, Yasushi Matsumura, Kazumitsu Taga, Ryuichi Hattori
  • Patent number: 4780279
    Abstract: The present invention relates to a method of fumigation and detoxification of plant seed and to an pneumatic apparatus having a positive pressure air source, seed feed, a vacuum wheel air lock, fumigant and detoxicant source, a spraying apparatus for introducing the fumigant and/or the detoxicant and an exit cyclone having an optional air return for returning fumigant and/or detoxicant saturated air to the apparatus. The inventive apparatus and method have been found effective for aflatoxin B.sub.1 and B.sub.2 suppression as well as for insect extermination in infested plant seed.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: October 25, 1988
    Assignee: Toltec Corporation
    Inventor: Quentin M. Enos
  • Patent number: 4771951
    Abstract: A waste material processing facility reduces the volume of waste material and produces an end product capable for use as construction building material. The waste material processing facility includes a conveyor belt for conveying the waste material to a shredding facility. The shredding facility controls the dimensions of the waste products being processed. An incinerator, for low heat incineration of the shredded materials includes pollution control devices for removing contaminates from the gases resulting from the incineration process. A facility is provided for solidifying, compacting, molding and glazing the char resulting from the incineration process into construction grade blocks.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: September 20, 1988
    Inventor: Mogens Kiehn
  • Patent number: 4681389
    Abstract: A lock pin for mounting a board-mount type connector on a board is formed of an elastic material and comprises an upper lateral arm, a pair of spaced long central legs respectively extending downwardly from the center of the upper lateral arm and a pair of spaced short outside legs respectively extending downwardly from the upper lateral arm along the outsides of the central legs. The central legs are adapted to be inserted into a lock pin mounting opening formed at one member of the connector from the upper surface side of the one member to project from the lower surface side of the one member over a considerable length and be inserted into a lock pin inserting opening of the board. The central legs are respectively formed at the lower ends thereof with side projections to be engaged with the periphery of the lock pin inserting opening.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: July 21, 1987
    Assignees: Hirose Elec. Co., Ltd., NEC Corporation, Japan Aviation Elec.
    Inventors: Akira Nakazawa, Shigeru Kikuta, Kihachiro Koike, Kensaku Matsuoka, Yoshimitsu Nishino
  • Patent number: 4681388
    Abstract: A cord clamping mechanism comprises a cord clamp and a clamp mounting base for mounting the cord clamp. The cord clamp has a ring-shaped portion for passing a cord to be clamped, and a pair of legs extending from both ends of the ring-shaped portion for clamping the cord passed through the ring-shaped portion when the legs are closed. The legs are formed with openings for passing a clamping screw for closing the clamp and mounting fixedly on the base. The base is formed with a threaded opening for receiving the screw. The cord clamping mechanism further comprises a guiding projection to be inserted into the opening at a position near the ring-shaped portion between the screw and the ring-shaped portion when the clamp is mounted on the base.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: July 21, 1987
    Assignees: Hirose Elec. Co., Ltd., NEC Corporation, Japan Aviation Elec.
    Inventors: Akira Nakazawa, Shigeru Kikuta, Kihachiro Koike, Kensaku Matsuoka, Yoshimitsu Nishino
  • Patent number: 4679735
    Abstract: Electrostatic spraying apparatus according to the present invention has two opposed electrodes in a housing adjacent to the path of a spray from a spray nozzle and a barrier adjacent to each electrode. The barrier includes pointed protuberances arranged so that the liquid collecting on them is discharged electrostatically. Each housing is secured to the barrier by a support extending from a recess within the housing.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: July 14, 1987
    Assignee: Crop Control Products Limited
    Inventor: Christopher C. Pay
  • Patent number: 4672963
    Abstract: A surgical system for destroying unwanted internal structures including a laser device, an ultrasonic probe and a computer system is described. The ultrasonic probe provides data signals that are processed by the computer system to provide an image of the structures involved in the laser irradiation procedure. The laser device can be inserted in the body and activated by the computer system to provide radiation capable of destroying internal tissue. By calibrating the effects of the laser device as a function of power, the surgical procedure can be controlled by including overlaying images of the regions already affected by the surgical procedures on the images previously provided by the ultrasonic probe. This image reconstruction can be performed in real time providing immediate feedback to the attending physician. The computer system can also monitor system parameters such as laser power.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: June 16, 1987
    Inventor: Israel Barken
  • Patent number: 4659397
    Abstract: This invention relates to a manufacturing process for plate or forging (bar, stamp work or the like) of ferrite-austenite two-phase stainless steel, containing C at 0.03% or below, Si at 2.0% or below, Mn at 2.0% or below, Cr at 25 to 35%, Ni at 6 to 15%, N at 0.35% or below, and Fe and inevitable impurity for the remainder with or without adding B at 0.001 to 0.030% with the following nickel balance value specified at -3 to -9 and comprising an average crystal grain size at 0.015 mm or below from heating an ingot of the above mentioned ferrite-austenite two-phase stainless steel at 1,200.degree. C. or below and keeping a forging ratio by hot working at 5 or over.Ni balance value=Ni %+0.5 Mn %+30.times.(C+N) %-1.1(Cr %+1.5 Si %)+8.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: April 21, 1987
    Assignees: Nippon Stainless Steel Co. Ltd., Sumitomo Chemical Co., Ltd.
    Inventors: Mineo Kobayashi, Takeshi Yoshida, Masahiro Aoki, Masao Okubo, Masaaki Nagayama
  • Patent number: 4653684
    Abstract: This invention relates to a welding material for welding a high-Si austenite stainless steel, capable of ensuring a high corrosion resistance of the weld metal in hot nitric acid of high concentration, while maintaining a toughness of the weld metal not smaller than 2 Kg-m/cm.sup.2, and the method of application therefor. The welding material has a composition containing not greater than 0.015% of C, 5 to 7% of Si, not greater than 2% of Mn, 15 to 20% of Cr, 10 to 22% of Ni, not greater than 0.02% of N, not greater than 0.45% of one or both of Nb and Ta, and the balance substantially Fe and inevitable impurities the sum of C and N contents is selected to be not greater than 0.03% and the sum of Nb and Ta contents is selected to be not smaller than 15.times.(C+N)%. The Ni-balance value given by the following formula ranges between -4 and -2.Ni balance value=% Ni+30(%C+%N)+0.5(%Mn)-1.1(%Cr+1.5.times.%Si)+8.
    Type: Grant
    Filed: September 12, 1984
    Date of Patent: March 31, 1987
    Assignees: Nippon Stainless Steel Co. Ltd., Sumitomo Chemical Co., Ltd.
    Inventors: Kiichi Saito, Masahiro Aoki, Noriyasu Ikeda, Masayoshi Miki, Masaaki Nagayama
  • Patent number: 4620841
    Abstract: A dental shade guide, to be employed by the dentist and dental laboratory technician, to be used in comparing patient's natural teeth for color more accurately. The dental shade guide has plurality of arms or bars constructed of a dental alloy and has corresponding opaque and dental glass fired onto each arm or bar, with each arm or bar varying in color. The same materials used to construct porcelain crowns or bridges is used to construct the dental shade guide.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: November 4, 1986
    Inventors: Frank C. Farrell, Margaret P. Farrell
  • Patent number: 4600487
    Abstract: An electrodialyzer and method and concentrate made thereby includes a probe for disposition in a colloidal solution contained within a vessel. The probe is longitudinally divided into cation and anion concentrate chambers having a cathode and anode respectively therein. Application of an electromotive force to the cathode and anode causes electromigratory movement of electrolytes through the cation and anion membranes for deriving a concentrate within a solvent contained within the cation and anion concentrate chambers.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: July 15, 1986
    Inventor: Donald A. Dahlgren