Patents Assigned to E
  • Ultrasonic cutting of fabric tufts to provide improved retention of tuft indentity during use
    Patent number: 5079810
    Abstract: A process and apparatus for cutting tufted loops of yarn of a fabric, such as a carpet, by applying sufficient energy from an ultrasonically vibrating horn, operating with either a shearing or a pincer action in cooperation with a mechanical device, either or both having a cutting edge, to cause at least some of the filaments in said yarns to soften and fuse to adjacent filaments during cutting of said tufted loops.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: January 14, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Harold F. Staunton, Yashavant V. Vinod
  • Process for preparing [1S-[1.alpha.,2.alpha.(Z),3.alpha.,4.alpha.]]-7-[3-[[[[(1-oxoheptyl)-ami no]acetyl]amino]methyl]-7-oxabicyclo-[2.2.1]hept-2-yl]-5-heptenoic acid
    Patent number: 5081266
    Abstract: A new process for preparing [1S-[1.alpha.,2.alpha.(Z),-3.alpha.,4.alpha.]]-7-[3-[[[[(1-oxoheptyl)-amin o]acetyl]amino]methyl]-7-oxabicyclo [2.2.1]-hept-2-yl]-5-heptenoic acid. New intermediates are also described. [1S-(1.alpha.,2.alpha.(9Z),3.alpha.,4.alpha.]]-7-[3-[[[[(1-oxoheptyl)-amin o]acetyl]amino]methyl]-7-oxabicyclo[2.2.1]hept-2-yl]-5-heptenoic acid is useful in the treatment of thrombotic disease.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: January 14, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: David Kronenthal
  • Miniature welding apparatus
    Patent number: 5081335
    Abstract: The invention deals with a new miniaturized welding machine, suitable for light soldering jobs.In general lines, the invention consists of the construction of a machine for electric welding with characteristics of a source of constant current. For this purpose, in the central leg of the core (15), a bundle of steel blades in a shape similar to that of the letter "E" (16) faced by the letter "I" (17), a primary coil (18) and a secondary coil (19), are placed on the opposite ends of the central leg of the core, remaining between them the space occupied by a physical separator (20) of both coils; what happens is that, when to the secondary coil is connected a charge resistance (21), it is produced the characteristics of a constant current source, suitable to determine the fusion of electrodes allowing the performance of the desired welding.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: January 14, 1992
    Assignee: Bambozzi S/A. -Maquinas Hidraulicas E Eletricas
    Inventor: Bruno Bambozzi
  • Monoclonal antibodies reactive with normal and oncogenic forms of the ras p21 protein
    Patent number: 5081230
    Abstract: Monoclonal antibodies reactive with normal and oncogenic forms of the ras p21 protein. The antibodies are secreted by hybridomas obtained by immunizing mice with the Ha ras p21 protein containing the arginine mutation at position 12 of the protein. The antibodies and immunoreactive fragments thereof of useful for detection, diagnosis, quantitation, staging and classification of normal and activated ras p21s in normal tissues, malignant and premalignant lesions.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: January 14, 1992
    Assignee: E. I. DuPont DeNemours and Company
    Inventor: Walter P. Carney
  • VSWR adaptive power amplifier system
    Patent number: 5081425
    Abstract: An adaptive power amplifier system for use with VSWR loads includes an adaptive power supply that indirectly monitors the power dissipated by a RF power amplifier and adapts bias conditions of solid state components in the RF power amplifier to protect the components from excessive power dissipation typically experienced with VSWR loads, even while maintaining full forward power output.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: January 14, 1992
    Assignee: E-Systems, Inc.
    Inventors: Charles R. Jackson, Douglas R. Burke
  • In-line polymer melt rheometer
    Patent number: 5078007
    Abstract: An apparatus and a process for quickly and accurately determining in-line the rheology of molten polymer streams, said apparatus comprising a cam member and a pressure wall member, one of which is a rotating member and the other one is a stationary member, the rotating member dragging molten polymer into a wedge-shaped clearance between the cam member and the pressure wall member, polymer pressure within the clearance being sensed by a pressure detection device capable of producing a signal responsive to said pressure in the form of a display, a graph, or an arbitrary numerical value, but preferably being transmitted to a computer programmed to calculate apparent melt viscosity of the polymer by the application of the Reynold's theory of lubrication.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: January 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Safwat E. Tadros
  • Fluorocarbon polymer support for chromatographic separations, diagnostic assays and enzyme immobilization
    Patent number: 5079155
    Abstract: A solid support useful for bioaffinity and ion-exchange separations and enzyme immobilization is provided. The support is based on a non-perfluorocarbon solid carrier core coated with a nonionic fluorosurfactant-coated fluorocarbon interlayer to which a ligand or a binder for the ligand is securely, but reversibly attached through a reactive perfluorocarbon anchor compound. Also provided is a solid support useful for size exclusion separations. Such support is based on a non-perfluorocarbon carrier core coated with a nonionic fluorosurfactant-coated fluorocarbon interlayer.
    Type: Grant
    Filed: September 28, 1989
    Date of Patent: January 7, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Geoffrey B. Cox, Robert K. Kobos
  • Process for preparing homogenous superconductors by heating in a nitrogen dioxide containing atmosphere
    Patent number: 5079217
    Abstract: This invention relates to homogeneous copper-containing oxide superconductors with improved superconducting properties and a process for preparing them.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: January 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Kevin J. Leary
  • Thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum
    Patent number: 5079064
    Abstract: A ceramic honeycomb structure containing SiO.sub.2, Al.sub.2 O.sub.3 and MgO primarily in the form of cordierite, mullite and corundum having a compositional gradient in the direction of the channels of the honeycomb and having extensive microcracking provides high resistance to thermal shock, and is useful as a substrate for catalysts.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: January 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George D. Forsythe
  • Mold displacement method for fixed surface type forming machine
    Patent number: 5079022
    Abstract: The present invention provides a travel sequence for molds in a chocolate forming plant of the fixed surface type wherein the width of the travel front or number of molds fed is changed for different stages of the forming process. Thus, for example, in accordance with the invention molds are filled one by one but are fed in groups of two or more to cooling tunnels so as to maximize the efficiency of the system.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: January 7, 1992
    Assignee: Comercial e Industrial Ausonia Ltda.
    Inventor: Rolando Jeanneret
  • Manual set for screen printing
    Patent number: 5078062
    Abstract: The invention discloses an automatic manual set for screen printing which delivers constant pressure of a squeegee and uniformity in printing. The automatic manual set basically includes an ensemble of four levers inter-clamped by sleeved axles. Provided is anatomic handle, an ink spreading knife, and printing squeegees.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: January 7, 1992
    Assignee: Klinger Industria e Comercio Ltda.
    Inventor: Silvio B. Mraz
  • Method for producing a conductive polyimide structure
    Patent number: 5078936
    Abstract: A method for preparing an electrically conductive polyimide article having a polyimide matrix with carbon black and graphite particles uniformly dispersed therein. The method includes the steps of milling carbon black and graphite in a polar solvent to form a slurry, mixing the slurry with polyamide acid to form a dope, shaping the dope, and converting the shaped material into a polyimide article.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: January 7, 1992
    Assignee: E. I. DuPont de Nemours and Company
    Inventors: Darrell J. Parish, Morton Katz
  • Auxiliary drive for vehicles
    Patent number: 5078227
    Abstract: An electrically driven auxiliary drive for vehicles including first and second electric motors each having associated therewith a friction drive element and apparatus for selectably bringing the friction drive elements into operative driving engagement with the tire of a vehicle wheel for driving thereof the friction drive elements being maintained in fixed mutually spaced relationship.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: January 7, 1992
    Assignee: S. A. E. Akikim
    Inventor: Arie Becker
  • Method and apparatus for optically evaluating the conformance of unknown objects to predetermined characteristics
    Patent number: 5078501
    Abstract: The conformance of an unknown object to predetermined characteristics is evaluated through a characteristic signature, using its transform image. The presence at an inspection station of each successive one of the objects to be inspected is detected. The inspection system includes a rotatable disk having mask apertures that move into the line of sight of a light detector. Signals produced by scanning of timing marks upon the disk reflect which one of the plurality of masks is present in the optical path, and the photodetector determines the intensity of the transform image sampled by said mask means. The signals representing these intensities, correlated to the domain from which they emanate, are collected to form a signature for the object. This signature is compared to a known signature.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: January 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Roeland M. T. Hekker, Izhak M. Livny, Terence M. Haran, Robert D. Buck
  • Non-stick coating system with thin undercoat of polyamide imide
    Patent number: 5079073
    Abstract: Improved non-stick coating systems can be applied to untreated smooth substrate with a polyamide-imide undercoat 0.1-5.0 microns thick preferably containing colloidal silica and surfactant.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: January 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Harvey P. Tannenbaum
  • Connector assembly for coaxial cable
    Patent number: 5078620
    Abstract: A connector assembly having multiple parts and means for making contact by clamping between a central conductor of a cable and a contact strip in the connector assembly. Both the contact and conductor may be disposed lying adjacent to each other. One of the connector parts is provided with at least one projection at the overlap between the contact strip and the conductor. Another of the connector parts is provided with at least one recess at the point of overlap between the contact strip and the conductor. The recess is bridged by either the contact strip or the conductor such that in the assembled state the projection lies essentially in the center opposite said recess.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: January 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Laurentius M. Verhoeven
  • Encapsulant composition
    Patent number: 5079193
    Abstract: An encapsulant composition comprising a lead zinc silicoborate glass which forms a crystalline phase of Zn.sub.2 SiO.sub.4 and ZnB.sub.2 O.sub.4 when it is fired at 650.degree.-800.degree. C.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: January 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul C. Donohue
  • Fabrics of polyester copolymer fibers: dyeing the heat set fabric
    Patent number: 5076810
    Abstract: Improved fabrics of fibers of a copolymer of ethylene terephthalate/hexahydroterephthalate containing a high proportion of hexahydroterephthalate are obtained by processing the fabrics and fibers within critical temperature ranges.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: December 31, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jal N. Kerawalla, Veronika S. Foldi
  • Process for treating metal chlorides
    Patent number: 5076850
    Abstract: Process for making aggregate suitable for use as a road base material comprising:(a) mixing metal chlorides with alkaline substance selected from the group consisting essentially of at least one cementitious material and optionally about 0.1-50%, based on the total weight of the alkaline substance, of at least one neutralizing agent, said mixing taking place in the presence of water in the amount of about 70-200 percent, based on the total weight of the alkaline substance,(b) partially curing the product resulting from step (a), and(c) agitating the product resulting from step (b) until aggregate is formed.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: December 31, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ralph J. Eschborn, II, Peter Hill
  • Method of making cherries of maraschino type
    Patent number: H1014
    Abstract: A method of making cherries of the maraschino type is provided. Sulfite brined cherries are leached to reduce residual sulfur dioxide content to at most about 100 ppm. The leached cherries are then immersed in a sweetener syrup consisting essentially of high fructose corn syrup, solids from crystalline fructose, and a red coloring agent. The syrup has a sweetener solids content insufficient to cause substantial osmotic shock to said fruit, but said immersing raises the solids level of said cherry fruit and imparts thereto a red color. The use of the particular sweetener syrup allows the solids level of the fruit to be raised much faster than in conventional maraschino cherry manufacture and yet collapse of the fruit is avoided. Also provided is a method of packing frozen fruit.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: January 7, 1992
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Charles W. Kraut, Michael E. Augustine