Patents Represented by Attorney, Agent or Law Firm Richard C. Stewart, II
  • Patent number: 7828930
    Abstract: A method for Kraft pulping employing a modified cooking process in conjunction with polysulfide pulping technologies to obtain higher pulping yields than obtained in the prior art. The total required alkali charge (polysulfide liquor) is added to the beginning of a cook, and after all polysulfide has essentially reacted with lignocellulosic material at temperature below that at which no significant carbohydrate degradation occurs, a first quantity of the cooking liquor high in effective alkali (EA) concentration is removed from a first point in the pulping process and replaced with a cooking liquor low in EA concentration removed from another process point. The first quantity is then added elsewhere in the pulping process, where the EA concentration is low. This cooking liquor “exchange” obtains the full yield benefit from polysulfide pulping and a more uniform EA concentration profile to retain the major benefits of modified cooking.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: November 9, 2010
    Assignee: International Paper Company
    Inventor: Jianer Jiang
  • Patent number: 6211905
    Abstract: This invention relates to a system for monitoring a process which includes a plurality of monitoring means such as video camera which collects data relative to the process. The collected data is converted into a digital format and the digitized data stored in digital data storage device such that as new data is stored earlier stored data is removed to maintain about the same volume of stored data. The system also includes a control such as a computer which communicates with the digital data storage device. In the event of a deviation from a process parameter, the control is adapted to extract and display the digitized data corresponding to the deviation.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: April 3, 2001
    Inventors: Robert J. Rudt, Leonard F. Fiore, Kenneth D. Grapes
  • Patent number: 6007921
    Abstract: A hot soft nip calendar apparatus is provided for a paper mill. The apparatus includes at least one heated calendar roller and a finishing belt which is moved in proximity to the heated calendar roller by a plurality of drive rollers and at least one pressure roller. Thus, a heated calendar nip is defined between the heated calendar roller and the finishing belt. A web of paper is passed through the nip, such that one surface of the web of paper is contacted by the heated calendar roller, while the opposed surface of the web is contacted by the finishing belt. The finishing belt has an extremely smooth surface for contacting the web of paper so as to impart appropriate smoothness and gloss characteristics to that surface. The finishing belt can readily be changed when worn or damaged or to alter the characteristics being imparted to a web of paper.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: December 28, 1999
    Assignee: Champion International Corporation
    Inventors: Thomas M. Neider, Robert J. Rudt
  • Patent number: 5931435
    Abstract: This invention relates to a pallet having a cradle which centers cylindrical articles or materials wound in rolls on the pallet and which allows the rolls to be transported while in a rollingly oriented manner, such that the cradle cooperates with retaining bands extending from a cylindrical core of the article or rolls to notches in runners which are attached to and extend the entire length of the pallet, thereby, securing the rolls in place during transport and storage.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: August 3, 1999
    Assignee: Champion International Corporation
    Inventors: Craig Alexander Hoadley, Thomas Neal McDowell
  • Patent number: 5853535
    Abstract: A process for bleaching wood pulp is provided comprising subjecting the wood pulp, after brown stock washing, to an oxygen delignification stage, a washing sequence, a first chlorine dioxide bleaching stage, an oxidative extraction stage, optionally at least one final chlorine dioxide bleaching stage and then recycling the filtrate from the oxidative extraction stage counter-currently through the bleaching plant and brown stock washing. Additionally, and quite beneficially, the filtrate from the first chlorine dioxide bleaching stage is also recycled counter-currently through the brown stock washing thereby significantly reducing the environmental impact associated with the manufacture of bleach wood pulp.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: December 29, 1998
    Assignee: Champion International Corporation
    Inventors: Gerald E. Maples, Joseph R. Caron, John A. Fleck
  • Patent number: 5849140
    Abstract: This invention relates to a labeling apparatus and system for imprinting, dispensing and inserting labels in between layers of paper or other material arranged in bales which are movable along a conveyor line. The apparatus utilizes a label inserting mechanism and a label transfer mechanism to fold and to insert non-adhesive labels in between layers of the bale without damaging the stock.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: December 15, 1998
    Inventor: Marvin Earl Bilnoski, Jr.
  • Patent number: 5821990
    Abstract: A system for continuously monitoring a process such as a paper making process wherein a plurality of video cameras are positioned at various positions along the process to monitor one or more pre-determined characteristics of the process. The system further includes device for converting the monitored characteristics into digital format and a digital data storage device, such as a circular memory, for storage of such data such that as new data is stored earlier stored data is removed. The system includes a control device such as a computer which is capable of communicating with the data storage device and with a detector for detecting deviations from the monitored predetermined characteristic such that on receipt of a deviation signal the control device extracts from the digital data storage device digitized data corresponding to the deviation and displays such extracted deviation digitized data as for example on a video monitor.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: October 13, 1998
    Assignee: Champion International Corporation
    Inventors: Robert J. Rudt, Leonard F. Fiore, Kenneth D. Grapes
  • Patent number: 5543052
    Abstract: Tis invention relates to a process for reducing the concentration of an organic pollutant such as phenol in an aqueous stream which comprises passing the stream through a bioreacter containing a plurality of biologically active particles comprising a hydrophobic polyurethane substrate having an effective amount of one or more aerobic microorganism capable of metabolizing at least one of said organic materials on; in or on and in said substrate in the absence or in the substantial absence of a carbon absorbent.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: August 6, 1996
    Assignee: AlliedSignal Inc.
    Inventors: Francis S. Lupton, William G. Sheridan, Marion R. Surgi
  • Patent number: 5324816
    Abstract: This invention relates to a process for improving the optical, thermal and/or mechanical properties of a polymer by subjecting a melt of the polymer to a shearing action at an effective shear rate, as for example a shear rate of greater than about 100 sec.sup.-1, for a time sufficient to improve said properties.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: June 28, 1994
    Assignee: Allied-Signal Inc.
    Inventors: Yash P. Khanna, John J. Belles, Jr., Annemarie C. Reimschuessel, Asis Banerjie
  • Patent number: 5104599
    Abstract: A process for forming mixtures of short fibers of varying lengths, diameters and aspect ratios composed of an anisotropic polymer.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: April 14, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Dusan C. Prevorsek, Kwok W. Lem, Hong B. Chin
  • Patent number: 4939289
    Abstract: This invention relates to fiber surface treating agents containing a pyromellitate nucleus which have fungicidal, anti-microbial and anti-static properties, and blends of such agents with other types of surface modifiers.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: July 3, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Bryce C. Oxenrider, David J. Long
  • Patent number: 4930198
    Abstract: An improved moving cavity yarn texturing device is described. One improved feature is a two stage energy tube which provides for more effective filling of the moving cavity by the yarn. The first stage has a cross section with a major axis an a minor axis. The second stage has a cross section with a major axis and a minor axis whose ratio is less than that of the first stage. A second feature is an improved chamber design which employs a channel having a "V" shaped cross section which eliminates snagging of the yarn by the cavity.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: June 5, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Hsin L. Li, Hendrikus J. Oswald
  • Patent number: 4831086
    Abstract: The present invention is a cyanato group containing phenolic resin of the formula: ##STR1## wherein n is 0 or an integer of one or more, and R is the same or different and is selected from the group consisting of hydrogen and methyl radicals. The advancement over the art is that the resin of the present invention is stable and has a long shelf life. This is indicated by the gel time of greater than 1 minute, preferably greater than 2 minutes, more preferably greater than 10 minutes, and most preferably greater than 20 minutes at C. Alternately, the improved phenolic triazine resin of the present invention can be characterized as having a thermal stability indicated by thermal decomposition temperature of at least C. and preferably of at least C. as measured by Thermal Gravimetric Analysis (TGA).
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: May 16, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Sajal Das, Dusan C. Prevorsek
  • Patent number: 4818680
    Abstract: A diagnostic reagent is disclosed which is capable of binding to a target nucleotide sequence which is bound to a labeled polynucleotide in a target binding region which is at least partially co-extensive with the target binding region in the probe polynucleotide which is capable of binding to the target nucleotide sequence. A method is disclosed in which the reagent is contacted with a sample and with a capturing polynucleotide under conditions such that target nucleotide which may be present in the sample binds to the probe polynucleotide and displaces labeled polynucleotide from the reagent complex, and the capturing polynucleotide binds selectively to the displaced labeled polynucleotide in the region of the labeled polynucleotide that had been bound to the probe polynucleotide. Determination of the displaced nucleotide gives a value which is a function of the presence and concentration of target nucleotide in the sample.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: April 4, 1989
    Inventors: Mary Collins, Joseph P. Dougherty, Marian S. Ellwood, Edward F. Fritsch, Kenneth A. Jacobs
  • Patent number: 4814242
    Abstract: This invention relates to a novel anode for use in batteries, and to batteries containing the anode, which anode comprises one or more anode active materials and an elastomeric binder.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: March 21, 1989
    Assignee: Allied-Signal Inc.
    Inventors: MacRae Maxfield, Taiguang R. Jow, Lawrence W. Shacklette
  • Patent number: 4804630
    Abstract: A kit and method for detecting lithium ions in a sample. The kit includes a lithium ion selective color indicator which is a leuco precursor of an arylmethane dye dispersed in a matrix. In use, the color indicator is contacted with a sample and any color change therein is monitored. A color change in the indicator indicates the presence of lithium ions in the sample.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: February 14, 1989
    Assignee: Allied-Signal Inc.
    Inventor: Himangshu R. Bhattacharjee
  • Patent number: 4804427
    Abstract: This invention is directed to a process of forming composites comprising reinforcing fibers dispersed in a thermoplastic polymer matrix, said process comprising the steps of coating a reinforcing fiber with a curable resin and an initiator for the curing of the resin and for the polymerization of monomer of said polymer; curing said resin to form cured resin coated fiber; coating said resin coated fiber with monomer of said polymer; polymerizing the monomer coating to form a polymer/resin coated fiber; and aligning the polymer/resin coated fiber and molding same into a desired reinforced thermoplastic composite.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: February 14, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Charles W. Paul, Joseph E. Mackey
  • Patent number: 4793936
    Abstract: A method for recovering organic ether solvent and alkali metal fluoride from a slurry thereof such as may be formed as a byproduct in silane manufacture. First water is added to a slurry having an organic ether liquid phase and a finely-divided solid phase comprising an alkali metal fluoride. The water is added in an amount sufficiently large to reduce adherence of organic ether to the solid phase and sufficiently small not to create a discernable separate aqueous liquid phase. The slurry with added water is maintained at a treatment temperature of at least about C. for a treatment period of at least one minute, typically 15-30 minutes at C. Thereafter, the treated slurry is seaparated into a crude fluoride solid and an ether liquid suitable for direct recycle or recycle after simple further treatment.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: December 27, 1988
    Assignee: Allied-Signal Inc.
    Inventors: Philip A. Lefrancois, Donald Pickens
  • Patent number: 4753858
    Abstract: This invention relates to a novel anode for use in batteries, and to batteries containing the anode, which anode comprises an alloy sodium.
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: June 28, 1988
    Assignee: Allied-Signal Inc.
    Inventor: Taiguang R. Jow
  • Patent number: D446451
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: August 14, 2001
    Assignee: Champion International Corporation
    Inventors: Donald A. Roemer, Keith M. Williams, Stephen S. Smith, Stanley J. Gasi