Patents Assigned to E
  • Paint spray machine having wet film thickness measurement and feedback control
    Patent number: 4702931
    Abstract: An improved paint spraying device for applying coats of paint to an object in which the machine has a paint spray gun, a gear pump gun that pumps paint to the spray gun from a vessel containing paint, a variable speed electric motor that drives the gear pump, a pump motor controller that controls the electric motor of the gear pump, means for moving the spray gun vertically and horizontally and for controlling the speed and acceleration of the movement of the gun, means for controlling the number of passes made by the gun, the dwell period at the end of each pass and the flash time between coats of paint applied by the gun; wherein the improvement is as follows:a.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: October 27, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Allan F. Falcoff
  • Phosphonyl hydroxyacyl amino acid derivatives as antihypertensive
    Patent number: 4703043
    Abstract: Phosphonyl hydroxyacyl amino acids of the formula ##STR1## wherein X is a substituted or unsubstituted imino or amino acid or ester. These compounds possess angiotensin converting enzyme activity and are thus useful as hypotensive agents.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: October 27, 1987
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Donald S. Karanewsky, Edward W. Petrillo, Jr.
  • Edge connector with clamping contact elements
    Patent number: 4701002
    Abstract: An edge connector is provided capable of interconnecting the conductors on a flexible conductor film and the conductors on one or more rigid substrates, such as for LCD or LED displays. The edge connector includes a plurality of clamping contact elements, each with at least three contact arms defining at least two insertion openings, one for the rigid substrates and one for flexible film. A fourth arm may be included to define a third insertion opening for a second rigid substrate.
    Type: Grant
    Filed: January 15, 1987
    Date of Patent: October 20, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Bob Mouissie
  • Chip resistant primer compositions VI'
    Patent number: 4701501
    Abstract: A solvent-based thermosetting coating composition comprising a hydroxy functional epoxy ester resin, linear polycaprolactone diol, and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional epoxy ester resin is formed by reaction of diepoxide, previously chain extended with dicarboxylic acid, with hydroxy functional secondary amine in chain terminating reaction.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: October 20, 1987
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Dennis J. Grebur
  • Agricultural ureas and isoureas
    Patent number: 4701535
    Abstract: This invention relates to ureas and isoureas which are useful as herbicides and plant growth regulants. In particular, compounds of the instant invention have demonstrated great selectivity.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: October 20, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Structure for a dichroic antenna
    Patent number: 4701765
    Abstract: This structure for a dichroic antenna can be used in a reflector antenna capable of operating at the same time at two different frequencies or with two orthogonal polarizations, and presents mechanical characteristics allowing its use on board the satellites. The structure, suitable for a subreflector, comprises a plurality of layers with high mechanical stiffness in the external part, followed by layers with low dielectric constant and one or a plurality of metallic grids in the most internal part, separated by low-dielectric constant layers.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: October 20, 1987
    Assignee: Cselt-Centro Studi e Laboratori Telecomunicazioni S.p.A.
    Inventors: Carlo Arduini, Renato Barboni, Antonio Castellani, Ugo Ponzi, Paolo Bielli, Salvatore Contu
  • Chip resistant primer composition V'
    Patent number: 4701502
    Abstract: Solvent-based thermosetting coating composition comprising a hydroxy functional epoxy ester resin, linear polycaprolactone diol, and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional epoxy ester resin is formed by reaction of diepoxide chain extended with dicarboxylic acid and chain terminated with acid component comprising primary hydroxy functional acid.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: October 20, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Dennis J. Grebur
  • Laminated arm composite centrifuge rotor
    Patent number: 4701157
    Abstract: A centrifuge rotor is formed from an arm having a base portion with enlarged load distributing end regions. The arm and each end region are formed from a plurality of laminae themselves formed of fibers. Each lamina has a direction associated therewith, with the directions of the laminae in each end region defining a predetermined angle with a reference direction defined within the base portion.
    Type: Grant
    Filed: August 19, 1986
    Date of Patent: October 20, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Raymond G. Potter
  • Photographic film containing direct positive dyes made from 3-indolizine carboxaldehyde
    Patent number: 4701398
    Abstract: A new group of cyanine and merocyanine spectral sensitizing dyes based on derivatives of 3-indolizine carboxaldehyde is particularly useful in sensitizing a direct positive silver halide emulsion to orange and red.
    Type: Grant
    Filed: March 14, 1986
    Date of Patent: October 20, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James W. Wheeler
  • Connector for a coaxial cable
    Patent number: 4701001
    Abstract: A connector for a coaxial cable comprising a cap and a bottom insulating plate. The plate has mounted thereon a first and second pair of contact elements. After the end of the cable is properly prepared, the first pair of contact elements is designed to pierce the outer insulation sheath of the cable and electrically contact the outer conductor while the second pair of contact elements is designed to pierce the inner insulation sheath and contact the inner conductor. The cap has inner slots and spaces adapted to receive the contact elements and portions of the cable end so that when the cap is pressed down and latched to the bottom plate, electrical contact is made with the inner and outer conductors and all portions of the inserted cable end are properly supported, thus ensuring adequate strain-relief.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: October 20, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Laurentius M. Verhoeven
  • Two-layer process for applying antistatic compositions to polyester supports
    Patent number: 4701403
    Abstract: An improved antistatic coating for a polyester support bearing a photographic layer is applied in two coatings using conventional coating equipment. The first coating contains an electrically conductive polymer and optionally a binding agent; the second coating contains a crosslinking agent.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: October 20, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Conrad E. Miller
  • Process for grounding flat devices and integrated circuits
    Patent number: 4700467
    Abstract: Grounding of source contacts (S) of flat devices and integrated circuits (of the FET type) is carried out according to the following process steps: a GaAs wafer is applied on a support and is covered on its free or rear face with photoresist; the latter is then etched along the border lines of the single FETs; the GaAs layer between contiguous FETs is removed also to make accessible the contacts S; a layer of noble metal is then deposited on the FET rear faces, so that it bridges the contacts S; the single metallized devices are disconnected from the initial support and finally are soldered to a package base.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: October 20, 1987
    Assignee: Telettra-Telefonia Eletrronica e Radio, S.p.A.
    Inventor: Giampiero Donzelli
  • Miniature television transmitter
    Patent number: 4701797
    Abstract: A small lightweight portable television transmitter having few components and operable with NTSC, PAL and SECAM systems. A one transistor video amplifier receives a gain controlled video signal and adjusts the d.c. level. Common mode noise rejection and sync pulse stretching is provided by a two transistor single ended output differential amplifier. The r.f. modulator combines and emitter follower and a one transistor mixer, with the r.f. applied to the collector and the modulating signals, including video and an audio modulated subcarrier, applied to the base. The transmitter has less than about 210 electrical components, weighs less than 1 kg when constructed with discrete components and substantially less when integrated into a hybrid circuit, yet provides 3 watts minimum peak power.
    Type: Grant
    Filed: June 7, 1984
    Date of Patent: October 20, 1987
    Assignee: C.sup.3 E M Company Ltd.
    Inventor: Leonidas Ferreira
  • Knife for cutting through the adhesive that fastens a window pane in place
    Patent number: 4700478
    Abstract: A knife to be mounted in an oscillating tool for cutting through the adhesive that fastens a window pane in place, especially in a motor vehicle. To reduce the risk of damage to its edge and to the window frame or other areas of the vehicle body, the knife has a rest made out of a soft material, especially plastic, associated with at least one side of the blade.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: October 20, 1987
    Assignee: C.& E. Fein Gmbh & Co.
    Inventors: Dieter Mezger, Georg Harsch, Gert Flachenecker
  • Electrochemical determination of hematocrit
    Patent number: 4699887
    Abstract: A method for measuring hematocrit is provided. An electrochemically detectable marker is measured before and after the ratio of red cell volume to plasma volume is decreased. The measured concentrations are used in a mathematical formula to determine hematocrit value.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: October 13, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Scot D. Abbott, Herman W. Levin, Robert K. Kobos, Henn Kilkson, Dale R. Peterson
  • Benzenesulfonamides as herbicides
    Patent number: 4699648
    Abstract: This invention relates to ortho-heterocyclicbenzenesulfonylureas and, more particularly, to orthofuranylbenzenesulfonylureas, ortho-thienylbenzenesulfonylureas or ortho-pyrrolylbenzenesulfonylureas and their use in agriculturally suitable compositions as pre-emergence and/or post-emergence herbicides and as plant growth regulants.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: October 13, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard F. Sauers
  • Herbicidal heterocyclicbenzylsulfonamides
    Patent number: 4699649
    Abstract: Novel benzylsulfonamide compounds containing ortho-heterocyclic substituents such as N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-[5-(methylthio)-1,3,4-oxa diazol-2-yl]benzenemethanesulfonamide are useful as preemergent and/or postemergent herbicides or plant growth regulants.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: October 13, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Morris P. Rorer
  • Use of certain cinnoline-4-carboxylic acids and congeners thereof for controlling the growth of unwanted plants
    Patent number: 4699651
    Abstract: The growth of unwanted plants is controlled by certain cinnoline-4-carboxylic acids and congeners thereof.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: October 13, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William W. John, Herbert Estreicher, Samuel B. Soloway
  • Coating composition of an amine polymer and an epoxy resin
    Patent number: 4699936
    Abstract: A coating composition useful as a finish for flexible and rigid substrates of automobiles and truck bodies and contains a binder and an organic carrier; wherein the binder containsA. an amine polymer of polymerized ethylenically unsaturated monomers and a polymerized constituent of the formula: ##STR1## where R.sup.1 is H or CH.sub.3, R.sup.2 is an aliphatic group and R.sup.3 is a cycloaliphatic group and the polymer has a molecular weight of about 2,000 to 50,000 andB. an epoxy resin.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: October 13, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Joseph A. Vasta
  • Process for the preparation of a distortion resistant polyester support for use as a phototool
    Patent number: 4699869
    Abstract: Photosensitive element comprisng a polyester, e.g., polyethylene terephthalate, at least 0.008 inch (0.20 mm) thick bearing on both sides a polymeric water-vapor barrier layer at least 0.00001 inch (0.00025 mm) thick of a copolymer of vinylidene chloride containing at least 80% by weight of vinylidene chloride and minor amounts of alkyl acrylate, and itaconic acid, and on at least one side of said barrier layer, a layer of a photosenstive material, e.g., silver halide emulsion, diazo or photopolymer. The element in the form of a phototool limits dimensional change within 6 hours after exposure to a 5% Relative Humidity change to no more than 0.001 inch (0.025 mm) per 24 inches (60.96 cm).
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: October 13, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John H. Bayless, Neil I. Steinberg, James H. Thirtle