Patents Assigned to E
  • III-V semiconductors in rigid matrices
    Patent number: 5132051
    Abstract: This invention provides III-V semiconductor/glass and III-V semiconductor/glass/polymer articles of manufacture which are useful for generating third order nonlinear optical effects.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: July 21, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Norman Herron, Ying Wang
  • Quaternary ammonium fluoride catalyzed halogenation of carbon acids
    Patent number: 5132475
    Abstract: A process is disclosed for chlorinating, brominating and/or iodinating an organic substrate containing both a single acidic hydrogen atom and at least one electron withdrawing group attached to the same carbon atom. The process replaces the single acidic hydrogen with chlorine, bromine and/or iodine and involves reacting the substrate in solution with a halogenating agent (e.g., a perhalomethane wherein the halogen substituents are I, Br and/or Cl, a trihaloacetic acid ester wherein the halogen substituents are Br and/or Cl, or a perfluoroalkyl halide wherein the halide is I, Br and/or Cl) in the presence of a quaternary ammonium fluoride catalyst of the formula R.sup.1 R.sup.2 R.sup.3 R.sup.4 NF where R.sup.1, R.sup.2, and R.sup.3 and R.sup.4 are independently chosen from the group consisting of hydrocarbyl radicals containing from 1 to about 20 carbon atoms.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: July 21, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Yoel Sasson
  • Self-contained anti-theft device for motor vehicles
    Patent number: 5132551
    Abstract: An anti-theft device that is adapted to be connected adjacent to or on a battery of a motor vehicle and including a power switch for disconnecting the battery from its standard battery cable when current flowing through the cable exceeds a preselected substantial amount of current associated with an attempt to start the vehicle. A lockout circuit is actuated by a remote transmitter for generating an external command signal to override the operation of the power switch. This device can be attached directly to a battery without external wiring and still provide the passive or self-arming anti-theft device.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: July 21, 1992
    Assignee: James E. Winner
    Inventors: Louis D. Carlo, Joey B. Adkins
  • Device for selectively separating particles in a liquid, in particular for cleaning fibrous paper suspensing
    Patent number: 5131544
    Abstract: A device for separating particles in a liquid in which a paper suspension to be cleaned and supplied to a chamber of revolution (1) rotating about an axis (2). Movable deviators (7, 8) precede the fixed outlets (9, 10) to intercept most of the through-put of the suspension in the region of the periphery of the chamber (1), then deviate it towards the longitudinal axis of rotation (2) so as to recover most of the kinetic energy of rotation. The outlets (7, 8, 9, 10) are situated at the opposite end to that of chamber (1) from the supply (5, 6) and are arranged at the periphery of this chamber (1). A diabolo-shaped central body of revolution (11) is arranged inside the chamber, along the longitudinal axis of rotation (2) for rotation about its axis and with a radial run-off (12) in the vicinity of its smallest cross-section connected to an axial outlet duct (13).
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: July 21, 1992
    Assignees: E. et M. Lamort, Centre Technique de l'Industrie des Papiers, Cartons et Celluloses
    Inventors: Alain Serres, Francois Julien Saint Amand
  • Method and apparatus for unmanned aircraft in flight refueling
    Patent number: 5131438
    Abstract: A method and apparatus for in-flight refueling of unmanned aircraft includes a manned tanker aircraft having a refueling probe mounted thereon. The probe is extendable for increased visual reference. A drogue mounted on the distal end of a flexible refueling hose is trailed from the unmanned aircraft. The refueling hose is stored on a reel assembly mounted on the fuel tank of unmanned aircarft. The reel assembly is remotely actuated from the manned tanker to pay out the refueling hose. A homing system transmits signals from the manned aircraft guiding the drogue to the probe. Upon insertion of the probe into the drogue, automatic coupling occurs and the unmanned aircraft is refueled.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: July 21, 1992
    Assignee: E-Systems, Inc.
    Inventor: Kenneth W. Loucks
  • Glass surface coating detector
    Patent number: 5132631
    Abstract: Apparatus and method for detecting the presence and surface location of or the absence of an electrically conductive solar coating on a pane of glass. A capacitor is formed by placing a probe against one surface of the glass. The value of the capacitor is determined by the presence or absence of a conductive coating on the glass and by the location of any coating relative to the probe. Variations in the value of the capacitor are detected to selectively illuminate lights which indicate either the absence of a surface coating, the presence of a surface coating on a near surface or pane of the glass or the presence of a surface coating on a far surface or pane of the glass.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: July 21, 1992
    Assignee: A. E., Inc.
    Inventors: John R. Klopfenstein, Drew K. Notestine
  • Nonsegregating blends of glass fibers and polymer pellets
    Patent number: 5132342
    Abstract: A nonsegregating dry blend of 90-30 weight percent of elongated polymer pellets having an aspect ratio, A.sub.p, of about 3-23 and a density of about 0.85-1.5 g/cm.sup.3 with 10-70 weight percent of glass fibers having an aspect ratio, A.sub.g, of 3.7-23, the A.sub.p /A.sub.g ratio being about 0.4-1.6, especially 0.8-1.2, can be fed directly to melt-fabricating equipment without first melt-blending the polymer pellets with the glass fibers and fabricated into articles having a substantially uniform glass content.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: July 21, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Sandra E. Chillous
  • Fluoropolymer process aids containing functional groups
    Patent number: 5132368
    Abstract: The subject invention provides a composition having excellent extrusion characteristics comprising a difficulty-melt-processible polymer and 0.002-0.5 wt. % of one or more fluoropolymer process aids wherein the fluoropolymer has a fluorine to carbon ratio of at least 1:2, is capable of forming a die-coating film under the prevailing conditions of extrusion temperature and pressure, and contains an effective amount of polar functional polymer chain end groups, --W, wherein --W is selected from --COF, --SO.sub.2 F, --SO.sub.3 M, --OSO.sub.3 M, --COOR, and --COOM, wherein R is C.sub.1-3 alkyl and M is hydrogen, a metal cation, preferably an alkali or alkaline earth metal cation, or a quaternary ammonium cation.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: July 21, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: George R. Chapman, Jr., Donnan E. Priester, Charles W. Stewart, Robert E. Tarney
  • Pressure controlled fresh air supply ventilation system using soil gas pressure as a reference, and method of use
    Patent number: 5131887
    Abstract: A ventilation system allows for a user adjustable minimum inlet fresh air volume inflow rate, a user adjustable minimum exhaust air volume outflow rate, for an enclosed space, and provides for automatic adjustment of the air volume flow rate(s) to maintain the air pressure inside the enclosed space at a user selected level which is measured in relation to the relatively constant soil gas pressure beneath the enclosed space, or pressure under the floor of the lowest occupied level, under which floor, soil gas is present.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: July 21, 1992
    Assignee: Don E. Reiner
    Inventor: Jon E. Traudt
  • Method for pipetting liquid from a sealed container
    Patent number: 5130254
    Abstract: A probe is introduced through the elastomeric cap of a closed sample container and moved sideways to stretch the cap and thereby provide an air passage to atmosphere while the sample is aspirated.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: July 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles F. Collier, James L. Seago, William G. DiMaio
  • Process for producing dyeable hot-bulked polypropylene fibers modified with a copolyamide
    Patent number: 5130069
    Abstract: Dyeable fibers are formed from polypropylene by blending a major portion of polypropylene with a minor portion of 1) a copolymer of nylon 6,6 and substantially equimolar amounts of hexamethylene diamine and an alkali metal salt of 5-sulfoisophthalic acid or 2) a basic reaction product of substantially equimolar amounts of N-(2-aminoethyl) piperazine and adipic acid, hexamethylene diamine and adipic acid and optionally .epsilon.-caprolactam. The blend is formed in an extruder and extruded into filaments which are quenched in air, stretched 2-4.times. (preferably at an elevated temperature) and bulked using a jet of heated turbulent fluid. The thusly bulked filaments are then dyed.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: July 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Raymond F. Tietz, Wae-Hai Tung
  • Mounting and control of outboard motors
    Patent number: 5129349
    Abstract: A vessel 1 has a transom 2 carrying a W-shaped (or two V-shaped) frames 3 symmetrically arranged about its median line. Thus varying sizes of outboard motors, mounted over the transom, for example in twos, can find equivalent arms of the frame 3 to abut against and are thus aligned and symmetrically mounted.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: July 14, 1992
    Assignee: E. P. Barrus
    Inventor: Robert D. Glen
  • Cyclobutane derivatives
    Patent number: 5130462
    Abstract: Cyclobutane derivatives of the formulas ##STR1## wherein P is a hydroxy protecting group and X is a leaving group are useful intermediates in the preparation of antiviral compounds.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: July 14, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: William A. Slusarchyk, Robert Zahler
  • Ammonium aryl hydrazide compounds
    Patent number: 5130480
    Abstract: Photographic silver halide elements containing aryl hydrazides as defined for the production of images with ultrahigh contrast and a new class of aryl hydrazides with a cationic group in the aryl radical as defined. The photographic silver halide elements can be developed at relatively low pH values and have low fog and low tendency to form black spots in unexposed or slightly exposed areas.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: July 14, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Reinhold Ruger
  • Polymerization of tetrahydrofuran using a fluorinated acidic catalyst and maleic acid/maleic anhydride mixture as molecular weight control agent
    Patent number: 5130470
    Abstract: A process for polymerizing tetrahydrofuran using a fluorinated resin containing sulfonic acid groups a trifluoromethane sulfonic acid as catalyst and a mixture of maleic acid and maleic anhydride as weight control agent. The product has the formula ##STR1## which can be hydrogenated to produce polytetramethylene ether glycol. The preferred molecular weight range of the polytetramethylene ether glycol is 600 to 4,000.
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: July 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Suriyanarayan Dorai, Willard L. Quon, Kirk M. Schall, Gary A. Hida
  • Method for treating type II diabetes employing a cholesterol lowering drug
    Patent number: 5130333
    Abstract: A method is provided for preventing or reducing the risk of or treating Type II diabetes by administering a cholesterol lowering drug, such as pravastatin, alone or in combination with an ACE inhibitor, such as captopril, zofenopril, ceranapril, fosinopril, enalapril or lisinopril.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: July 14, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Henry Y. Pan, Michael Bergman
  • Chlorinated polymer star polymer composition
    Patent number: 5130364
    Abstract: A composition for use as a binder for coating compositions containing a chlorine-containing polymer having a chlorine content of 40-75 weight percent and a number average molecular weight of 3500-40,000 and an acrylic star polymer and a low molecular weight plasticizer that is a chlorinated aliphatic hydrocarbon having a chlorine content of 20-70 weight percent or a monomeric or polymer ester having molecular weights of from 200-2500.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: July 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John C. Chen
  • Flexible circuit and a device for holding the flexible circuit in the folded state
    Patent number: 5130499
    Abstract: By folding two or more mutually connected strips of flexible printed circuit film material, an elongated flexible printed circuit comprising a main strip and one or more side strips being produced, with a minimum waste of film material. For holding the flexible circuit in its folded state and controlling the bending radii of the strips, a holding clip which locks automatically on the film material being provided.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: July 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frank J. J. Dijkshoorn
  • Steamer handle
    Patent number: D328163
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: July 21, 1992
    Assignee: E. Mishan & Sons, Inc.
    Inventor: Eddie Mishan
  • Steamer body
    Patent number: D328164
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: July 21, 1992
    Assignee: E. Mishan & Sons, Inc.
    Inventor: Eddie Mishan