Patents Assigned to E
  • Method of making a hemicellulose coated dietary fiber
    Patent number: 4927649
    Abstract: A composition of matter comprising an insoluble dietary fiber material coated with hemicellulose is provided. In preferred embodiments, the insoluble dietary fiber material and hemicellulose are derived from grain hulls. The weight ratio of insoluble dietary fiber material to hemicellulose is generally greater than about 1:1. Also provided is a method of coating an insoluble dietary fiber material with a hemicellulose. Preferred embodiments employ a fluidized bed technique to obtain the coating of hemicellulose.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: May 22, 1990
    Assignee: A. E. Staley Manufacturing Company
    Inventor: Robert N. Antenucci
  • Direct positive dimethine cyanine dyes containing 1-aryl-2-heteroaryl indole nucleus
    Patent number: 4927933
    Abstract: A fogged direct positive photographic silver halide emulsion containing a sensitizing amount of at least one cyanine dye defined above, e.g., cyanine dye containing a 1-phenylindole nucleus substituted in the 2-position with the 3-pyridyl group. The said cyanine dye is also covered. The dye useful in sensitizing the silver halide emulsion useful for fogged direct-positive films.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: May 22, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas D. Weaver
  • Playtray with hinged legs
    Patent number: 4926758
    Abstract: A foldable playtray is provided having a table top supported by a pair of legs hinged to the table top in one embodiment in such a way that both surfaces fo the table may be used. One surface of the table is provided with a Lego-type play surface so a child playing with Lego-type toys can detachably secure them to the table. The other surface of the table is flat, for use for games, arts and crafts. The legs can be rotated so they support the table with either its Lego-type play surface or its flat surface on top. In addition, the legs are provided with a Lego-type play surface and can be rotated to be coplanar with the table to provide an extended Lego-type play surface. The legs are also equipped with covered storage compartments for small objects.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: May 22, 1990
    Assignee: Carol E. H. Lilly
    Inventors: Carol E. H. Lilly, Loyd C. Moore, Mark E. Eike, Nicholas E. Barker
  • Retention and drainage aid for papermaking
    Patent number: 4927498
    Abstract: An improvement in a papermaking process in which an aqueous paper furnish containing cellulosic pulp, and optionally also mineral fillers is formed and dried, the improvement being the addition of a drainage and retention aid comprising a water soluble alkali metal polyaluminosilicate microgels formed from the reaction of polysilicic acid and an alkali metal aluminate, the polyaluminosilicate having an alumina/silica mole ratio greater than about 1/100, together with a cationic polymer selected from the group consisting of cationic starch, cationic guar and cationic polyacrylamide.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: May 22, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: John D. Rushmere
  • Low pour crude oil compositions
    Patent number: 4926582
    Abstract: A low pour point crude oil composition is prepared by incorporating in a waxy crude oil an effective pour point depressant amount of an oil soluble ethylene-acryonitrile copolymer or terpolymer. The copolymer or terpolymer is usually added as a solution. In one aspect the invention relates to the pipeline transportation of the low pour crude oil composition.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: May 22, 1990
    Assignee: E. I. duPont de Nemours & Company
    Inventors: Kaye L. Motz, Roger A. Latham, Robert J. Statz
  • Yarn finish applicator
    Patent number: 4926661
    Abstract: A slotted yarn finish applicator in which yarn contacts the bottom of a slot provided with a passage through which finish is metered. The bottom surface of the slot is modified to include uniformly distributed depressions to improve performance.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: May 22, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Brian M. Agers, John S. Dickins, III
  • Conformation of vacuum - laminated solder mask coated printed circuit boards by fluid pressurizing
    Patent number: 4927733
    Abstract: A method is disclosed of obtaining a void free interface between a photosensitive dry film and substrate by applying uniform fluid pressure after vacuum lamination.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: May 22, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Gary K. Stout
  • Process for producing closed-cell polyurethane foam compositions expanded with mixtures of blowing agents
    Patent number: 4927863
    Abstract: A process is disclosed comprising mixing selected shrinkage-minimizing halocarbons with selected two-carbon hydrogen-containing halocarbons, HCFC-123, HCFC-123a and HCFC-141b, and using this mixture as a blowing agent to produce minimal shrinkage closed-cell polyurethane foams.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: May 22, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Philip L. Bartlett, Joseph A. Creazzo
  • Manufacture of chloroform
    Patent number: 4927981
    Abstract: A process is disclosed for the manufacture of chloroform by partial chlorination of methyl chloride-methylene chloride mixtures to produce a chlorinated product mixture containing chloroform, methyl chloride, methylene chloride and little or no carbon tetrachloride, the amount of methylene chloride being substantially equal to the amount employed in the initial feed mixture and the amount of carbon tetrachloride corresponding to less than 0.1 mole of chloroform in the product.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: May 22, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Kung H. Lee
  • Optical cable coupling adapter
    Patent number: 4927229
    Abstract: An optical cable coupling adapter comprises two end portions and a split sleeve. Each end portion holds a plurality of cylindrical rods with their outer circumferences kept in contact with one another. The cylindrical rods define one or more passages for an optical fiber. The split sleeve contacts and holds the exposed outer circumferential surfaces of the cylindrical rods and effects center alignment of the fiber passages in the two end portions.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: May 22, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Yoshiyasu Tanaka, Toshimi Nagaishi, Mituyoshi Suzuki
  • Blowout preventer
    Patent number: 4927112
    Abstract: A blowout preventer for use on wellheads for sealing around tubing strings, polished rods, and wirelines, including a body having a bore therethrough and connectable on a wellhead, integral laterally opposed side chambers in the body, a closure cap over each of the side chambers, an operating screw through each of the closure caps, a seal assembly in each of the side chambers adapted to come together in the bore of the body to seal off flow through the body, each of the seal assemblies including a ram plate having only an upper backup plate and side retainer walls, and an elastic seal supported on each ram plate below the backup plate inside the retainer walls, adapted to compress together within the ram body bore for expanding and extruding sufficiently to fully seal off the bore through the body.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: May 22, 1990
    Assignee: Doulbe-E Inc.
    Inventor: James A. Wilson
  • Method for shaping fiber reinforced resin matrix materials
    Patent number: 4927581
    Abstract: A method of shaping elongated composite structures of a resin matrix reinforced with randomly broken fibers oriented in transverse and non-transverse directions with respect to the longitudinal axis of the structure is implemented by a computer aided apparatus for forming the structure. The apparatus is provided with a heated fixed forming tool, a means for stretching the structure from each end and means associated with the forming tool for separately holding each formed component length of the structure in place against the forming tool. The formed structure is characterized by the particular orientation of the fibers in the transverse and non-transverse direction after the structure is formed.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: May 22, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Steven J. Medwin
  • Fluoroelastomer compositions containing a tetraalkylammonium halide and vulcanization accelerator
    Patent number: 4925892
    Abstract: A fluoroelastomer composition that has enhanced adhesion to metal when cured which comprises:(a) an elastomeric copolymer of vinylidene fluoride and at least one other fluorinated monomer,(b) a vulcanization accelerator that is a quaternary phosphonium compound,(c) a crosslinking agent selected from the group consisting of a bisphenol or a polyhydroxy phenol of the formula: ##STR1## where R is H or an alkyl group or an aryl group and R' is an alkyl group or an aryl group, and(d) 0.02-0.8 weight percent based on the weight of the elastomeric copolymer of a metal adhesion promoter that is a tetraalkylammonium halide where each alkyl group contains 1-10 carbon atoms and the halide is a chloride, bromide or iodide. When cured in contact with metal the fluoroelastomer composition forms a strong bond with the metal surface.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: May 15, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David L. Tabb, Janet M. Wilson
  • Lightning protection device for interacting with leader stroke to prevent return stroke
    Patent number: 4926284
    Abstract: An atmospheric electrode is charged by electrostatic induction from a leader stroke which is associated with lightning formation. The electrode is earthed through a varistor which becomes conductive when the value of the tension associated to the electric field at ground exceeds a pre-determined value. In this way, a destructive return stroke, which usually follows a leader stroke during lightning formation, is avoided.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: May 15, 1990
    Assignee: ISPE S.a.s. di Erminio GIANA e C.
    Inventor: Manghi Eugenio
  • Portable grinder with adjustable protective hood
    Patent number: 4924635
    Abstract: In a portable machine tool comprising a protective hood mounted by means of a holding part for rotation on a clamping neck of the portable machine tool, in order to prevent unintentional adjustment of the protective hood, it is proposed that the holding part of the protective hood and a locking part facing the holding part and held in a rotationally fixed manner on a grinder housing in the region of the clamping neck be provided with locking elements which can be brought into engagement with one another, that the holding part or locking part comprise at least one locking element and the respective other part several locking elements, and that the locking elements be disengageable against the force of a spring member.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: May 15, 1990
    Assignee: C. & E. Feini GmbH & Co.
    Inventors: Boris Rudolf, Walter Blutharsch
  • Method and apparatus for attaching a catheter to a bag such as a wound drainage bag
    Patent number: 4925216
    Abstract: Apparatus for attaching a catheter to a bag includes a pair of coupling rings for trapping a part of the bag wall between them. A cutter having a blade of circular or closed loop form makes a cut in the trapped wall and an elastomeric member for gripping a catheter is connectable to the cutter or to one of the rings. The catheter is inserted in the elastomeric member and through the rings, the member serving as a gaiter.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: May 15, 1990
    Assignee: E. R. Squibb and Sons, Inc.
    Inventor: Peter L. Steer
  • Exterior wall panel drainage system
    Patent number: 4924647
    Abstract: A drainage system for draining rain water and internal moisture from the rear of exterior wall panels so as to effectively drain such rain water and moisture outwardly to the outside of the wall panels. The system inlcudes a vertical sealant joint behind adjoining exterior wall panels to sealingly space the wall panels from their support. The space includes foam back-up tapes, vertical sealant, drain tubes, and gutters so arranged as to effectively drain, outside the walls, through weep holes, rain water as well as moisture that tends to accumulate behind the walls. The present system drains both the vertical and horizontal joints of exterior wall panels.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: May 15, 1990
    Assignee: E. G. Smith Construction Products Inc.
    Inventor: Oscar Drucker
  • Method of treating skin injuries using thromboxane A.sub.2 receptor antagonists
    Patent number: 4925873
    Abstract: A method for treating skin injuries is provided by administering a thromboxane A.sub.2 receptor antagonist systemically or topically to the skin area to be treated.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: May 15, 1990
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Lawrence T. Friedhoff, Laura L. Bolton
  • Negative solid block toner
    Patent number: 4925765
    Abstract: Negatively chargeable toner containing block copolymers for electrostatic reprography, giving improved compatibility with the toner resin and higher triboelectric charging. Preferred are block copolymers of styrene, methyl methacrylate and butyl methacrylate as one block and salts or esters of methacrylic acid or acrylic acid as the other block in the copolymer.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: May 15, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dennis G. Madeleine
  • Silver-based electrostatic printing master
    Patent number: 4925756
    Abstract: Compositions and films are provided for the preparation of electrostatic printing masters. The composition binder permits use of aqueous silver halide photographic techniques to image the master for printing, and exhibits insulation properties needed for electrostatic printing under typical conditions of relative humidity.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: May 15, 1990
    Assignee: E. I. Dupont de Nemours and Company
    Inventor: Allan Cairncross