Patents Examined by Bradley Garris
  • Patent number: 4407700
    Abstract: Combustion gas such as air, oxygen-enriched air or oxygen is introduced to a calcining zone at an intermediate level in a vertical shaft kiln for the calcining of petroleum coke utilizing a plurality of radially disposed combustion gas injectors and at least one vertically disposed injector located within the shaft kiln and extending into the calcining zone. The injector includes means for circulating coolant around the periphery of the injector so that common metals may be used in the high temperature (above 2000.degree. F.) environment of the shaft kiln. The vertical combustion gas injector may extend from the top of the calcining chamber to the calcining zone or from the bottom of the calcining chamber to the calcining zone. When the vertical combustion gas injector extends vertically upwardly from the bottom of the calcining chamber, means for introducing recycle gas to the calcining chamber may be incorporated into the vertical combustion gas injector.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: October 4, 1983
    Assignee: Conoco Inc.
    Inventors: Richard L. Davis, Harlan G. Graf, Don L. Edwards, William B. Macbeth, Jr.
  • Patent number: 4406744
    Abstract: The production of hydrogenated tar and distillates from coal which is passed through successive condensing, hydrogenation, desulfurization and cooling zones of a dense bed while a flue gas is discharged into the lower portion of the desulfurization zone in admixture with steam and hydrogen for countercurrent flow contact with the coal and coke solids. The gases evolved from the desulfurization zone are passed into countercurrent contact with the coal in the preceding hydrogenation zone where the high boiling coal tar fractions evolved from the coal are hydrogenated and pyrolyzed. The total effluent from the hydrogenation zone is then passed into countercurrent contact with the coal in the condensing zone, preheating the coal by direct contact and initiating the pyrolysis of the coal. The preferred method is practiced in a vertical kiln through which the coal is passed as a dense, compact gravitating bed of solids.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: September 27, 1983
    Inventor: Clyde Berg
  • Patent number: 4406747
    Abstract: The present specification describes and claims a method and apparatus for use in cooling the solid residue of gasification of a reactor operated at a pressure above atmospheric for the gasification of carbonaceous materials. The residue of gasification is conducted out of the reactor into a cooling apparatus located therebelow and flows through the cooling apparatus from the top to the bottom thereof. A cooling liquid is introduced into the solid residue in the upper region of the cooling apparatus and is metered such that the greater portion of the heat contained in the residue is eliminated in the form of heat of vaporization, sensible heat and chemical binding energy with the resultant steam and reaction products produced. The remaining residual heat which corresponds to the difference between the desired final temperature and the temperature after cooling by the liquid, is eliminated by a gas blown into the bottom region of the cooling apparatus and/or by indirect heat exchange.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: September 27, 1983
    Assignee: Rheinische Braunkohlenwerke AG
    Inventor: Gunter Velling
  • Patent number: 4406746
    Abstract: In a coke dry shaft cooler having a smaller receiving chamber, and therebelow, a larger cooling chamber, a wear-resistant inward projection is provided at the transition between the two chambers to overcome difficulties caused by uneven particle distribution within the cooler.
    Type: Grant
    Filed: February 5, 1982
    Date of Patent: September 27, 1983
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventors: Wilhelm Danguillier, Jurgen Tietze, Wolfgang Grams, Heinz Thubeauville
  • Patent number: 4406743
    Abstract: A novel process for the purification of used oil comprising removing the ash-forming components, then subjecting the oil to vacuum fractionation. A novel vacuum fractionation column is also disclosed.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: September 27, 1983
    Assignee: Phillips Petroleum Company
    Inventors: Donald K. MacQueen, William E. Wood
  • Patent number: 4406742
    Abstract: An extraction vessel is provided with an inlet channel and an outlet channel. The inlet channel is adapted for introduction of carbonaceous material in molten lead into the extraction vessel which is at least partially filled with molten lead. Solvent introduced into the extraction vessel extracts the carbonaceous material floating upwardly in the vessel. From the vessel extracted solids are removed separately through the outlet channel. Solvent and extracted material is removed from the extraction vessel by means of a conduit.
    Type: Grant
    Filed: April 7, 1982
    Date of Patent: September 27, 1983
    Assignee: Phillips Petroleum Company
    Inventor: James E. Dick
  • Patent number: 4405491
    Abstract: An apparatus for forming foam including a rotatable screw shaft having concave grooves or convex stripes extending spirally along its outer circumference and located in a cylinder closely spaced from one another for passing a treating solution containing a foaming agent, such as soap, together with pressurized air through the gap between the screw shaft and the cylinder. It is preferable to provide a plurality of square grooves along the inner circumference of the cylinder extending spirally or in the axial direction of the cylinder. Foam of the treating solution can be continuously produced in an effective manner, and the apparatus is particularly suitable for continuously applying a treating solution to a cloth.
    Type: Grant
    Filed: September 29, 1981
    Date of Patent: September 20, 1983
    Assignee: Sando Iron Works Co., Ltd.
    Inventors: Yoshikazu Sando, Hiroshi Ishidoshiro
  • Patent number: 4404168
    Abstract: Apparatus for the discontinuous production of articles from a foamed plastic, including metering vessels for reaction components arranged above a mixing vessel. The metering vessels are with the interposition of communication bellows connected to the mixing vessel. Inside the cover of the mixing vessel exists an annular space communicating with an annular slot which opens towards the internal wall of the mixing vessel, so that when filling the mixing vessel first one of the reaction components is introduced into the annular space, flowing along the inner wall of the mixing vessel downwardly through the annular slot and in this way flushes off any residue.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: September 13, 1983
    Assignee: Mirabed AG
    Inventor: Beat Baumberger
  • Patent number: 4402791
    Abstract: An apparatus for pyrolyzing shredded tires including an oven having a discharge opening and a tote having a discharge snout corresponding to the opening, the tote being placed in the oven with the snout inserted into the opening, radiant heating tubes are provided in the oven in close proximity to the top and bottom of the tote to heat the shredded tires, the tote having an inclined top for directing gaseous vapors produced on heating the tires toward the snout, the gaseous vapors are drawn through a discharge duct assembly and condenser by a fan located at the exhaust from the condenser.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: September 6, 1983
    Inventor: John C. Brewer
  • Patent number: 4402790
    Abstract: A temperature measuring probe and method of detecting infrared radiation from flue walls and transmitting the detected infrared radiation through fiber optic cables to photoelectric detection-conversion cells which convert the radiation to electrical signals which are measured and translated into temperatures. Concentric metallic flexible hose mounted on a carriage for mobility provides water cooling for the fiber optic cable with a portable reeling machine for controlling the movement of the cable, hose, and probe head. The probe head provides viewing ports for the terminal ends of the fiber optic cable.
    Type: Grant
    Filed: May 4, 1982
    Date of Patent: September 6, 1983
    Assignee: Bethlehem Steel Corporation
    Inventors: James B. Lynn, George E. Kisner
  • Patent number: 4401513
    Abstract: A process and apparatus for recovering the material components of rubber tires, the process including the steps of shredding the rubber tires to a size capable of being transported, heating the shredded rubber pieces in an inert atmosphere to a temperature sufficient to vaporize the heat recoverable components of the tires, condensing the vaporizable components to liquify the oil and ammonia present, collecting the uncondensed gas, and recovering the carbon residue and metal remaining after cooling. The apparatus including a hot air oven having a plurality of hot air conduits defining a primary heating zone and a top wall configuration defining a gas collection zone and a tote bin formed by a closed container having an opening at one end and a top wall configuration conforming to the top wall of the oven.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: August 30, 1983
    Inventor: John C. Brewer
  • Patent number: 4401505
    Abstract: A silicon dendrite is grown as a ribbon forming two silicon crystal layers which are separated by an interface layer which contains a large number of defects. Significant increase of minority carrier lifetime with homogeneous distribution at the outer surfaces of the two silicon crystal layers are achieved by processing the web in an atmosphere of a selected gas, e.g. oxygen, nitrogen or an inert gas, for about 30 minutes to several hours at a temperature preferably on the order of 900.degree. C.-1200.degree. C.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: August 30, 1983
    Assignee: The United States of America as represented by the Administrator National Aeronautics and Space Administration
    Inventors: James K. Liu, Guenter H. Schwuttke, Krishna M. Koliwad
  • Patent number: 4400236
    Abstract: An improved process for the removal of volatile components from polymer compositions containing volatile components such as unreacted monomers, solvents, by-products or impurities by a rotating disc evapo-extrusion, and an apparatus therefor. The present invention is particularly useful for the removal of the volatile components from polymer compositions having a high content of volatile components such as 25 to 99.9% by weight, particularly methyl methacrylate polymer compositions useful for the production of molding materials or extrusion plates which contain 60% by weight or more of methyl methacrylate monomer.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: August 23, 1983
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshimi Hanamura, Masahiro Yuyama, Akira Sakuramoto
  • Patent number: 4400240
    Abstract: A coke oven door is disclosed which includes a sealing diaphragm mounted between the door body and the door stopper having integral means formed therein to cause resilience adjacent the periphery so that sealing blades mounted along the periphery can be pressed into contact with the door frame under unequal forces.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: August 23, 1983
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventor: Werner Abendroth
  • Patent number: 4398999
    Abstract: A coke oven battery has a continuous roof and uprights at each of the pusher and coke sides. The uprights are connected by ties extending through pipes embedded in the roof. To provide cooling for the ties, a massive metal cooling member extends upwardly from each pipe to the upper side of the roof, to conduct heat away from the pipe. The cooling member may contain a chamber forming an evaporation cooling system.
    Type: Grant
    Filed: January 21, 1982
    Date of Patent: August 16, 1983
    Assignee: Estel Hoogovens BV
    Inventors: Jacobus van Laar, Timen Vander, Johannes A. Kroes, Pieter G. Broersen
  • Patent number: 4398476
    Abstract: A method and an apparatus of incinerating dewatered sludge without using an auxiliary fuel comprising pelletizing the partially dewatered sludge having a water content of 70 to 75%, drying the pellets with a heat source obtained by burning gases formed by dry-distillation and gasification, using part of the resulting dry-distilled gas in said drying step, dry-distilling the pellets by the sensible heat of a gas formed by gasification, gasifying the dry-distillation residues with air, water vapor and the remainder of said dry-distilled gas.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: August 16, 1983
    Assignee: Shinryo Air Conditioning Co., Ltd.
    Inventors: Akira Suzuki, Yasumi Shioya, Keiichi Kimura
  • Patent number: 4398998
    Abstract: Energy and useful products are recovered from plantain wastes in a self-contained waste treatment plant wherein the raw material waste is charged into a boiler where the same is combusted to produce flue gases containing several organic compounds and dry ash containing residue mineral salts. The flue gas heats water in a water reservoir to generate steam which drives a turbine generator to produce electricity, the flue gas then being collected and at least partially condensed to form a pyroligneous acid solution from which alcohols and the like can be recovered. The dry ash containing residue mineral salt is mixed with other minerals or reagents with the resulting mass being supplied into a continuously stirred fusion furnace situated within the boiler to which heat is supplied by the flue gas to produce commercially useful products, such as zeolites, dolomite or other related products.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: August 16, 1983
    Inventor: Babington A. Quame
  • Patent number: 4396461
    Abstract: A process for quenching hot coke in a one-spot coke quench car. The process utilizes a unique arrangement of pipes and spray nozzles to quench the hot coke in a substantially watertight coke quench car having a sloping bottom. A plurality of pipes are directed downwardly from a header mounted on the bench side of the quench car to provide solid streams of water onto the shallow coke bed portion at the top of the sloped bottom for a portion of the quench period. After an initial period a flow of water from a plurality of spray nozzles mounted on additional headers is directed onto the substantially horizontal deep coke bed portion for the remainder of the quenching period. The unvaporized quench liquid is retained in the watertight car until the completion of the quench cycle when it is rapidly drained away.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: August 2, 1983
    Assignee: Bethlehem Steel Corporation
    Inventors: Victor A. Neubaum, deceased, S. Robert Schwartz, Robert C. Fetterman, William E. Swan, Jr.
  • Patent number: 4395309
    Abstract: Process and apparatus for recovering volatile distillates from coal, and other solid carbonaceous fuel sources, by heating the top surface of a bilayer of coal formed of an upper layer of recycled coal and a lower layer of green coal, maintaining the lower level of green coal at a temperature cool enough to condense constituents distilled from the upper layer of recycle coal, and recycling the once passed green coal as recycle coal is disclosed.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: July 26, 1983
    Inventor: Ernest P. Esztergar
  • Patent number: 4394218
    Abstract: A coke quench car emission control system includes a coke car and a filter car connected in tandem for joint movement on rails disposed adjacent a coke oven. A hood and recuperator are mounted on a third car disposed on auxiliary rails which extend longitudinally along the upper portions of both the quench car and the filter car and in end-wise alignment. The hood is adapted to be coupled to the coke oven for receiving coke during a pushing operation. The recuperation has an inlet coupled to the hood for receiving emissions and withdrawing heat therefrom. The recuperator also has an outlet which is disposed adjacent the inlet of a filter system mounted on the filter car, when the third car is positioned atop the quench car. The third car is sized so that it can be moved on the auxiliary rails from a position atop the quench car to a position atop the filter car whereby the quench car can be exposed for a quenching operation.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: July 19, 1983
    Assignee: Baumco Gesellshaft fur Anlagentechnick mbH
    Inventor: Joerg P. Baum