Patents Assigned to E
  • Polyimide covered calender rolls
    Patent number: 4705711
    Abstract: Calender roll comprising a cylindrical metal shaft bearing a polyimide cover, wherein the shaft is knurled to eliminate slippage between the shaft and the cover.
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: November 10, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dominic R. Perna
  • Boronic acid adducts of technetium-99m dioxime complexes
    Patent number: 4705849
    Abstract: Boronic acid adducts of technetium-99m dioxime complexes are useful for imaging the myocardium, hepatobiliary system, brain and blood pool in humans and other mammalian species.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: November 10, 1987
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Adrian D. Nunn, Thomas A. Feld, Elizabeth N. Treher
  • Herbicidal sulfonamides
    Patent number: 4705556
    Abstract: This invention relates to novel herbicidally active sulfonylurea compounds substituted in the positions ortho to the sulfonylurea bridge, agriculturally suitable compositions thereof and methods of their use as preemergent or postemergent herbicides or plant growth regulants.
    Type: Grant
    Filed: March 18, 1986
    Date of Patent: November 10, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mary A. Hanagan
  • Copolyetherketones
    Patent number: 4704448
    Abstract: Novel copolyetherketones derived from diphenyl ether and aromatic diacids or diacid halides are disclosed where the diphenyl ether is present in a molar excess relative to the diacid or diacid halide chlorides of about 2 to 8%.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: November 3, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward G. Brugel
  • Herbicidal fluoroethoxy pyrimidines
    Patent number: 4704159
    Abstract: Specific fluoroethoxy pyrimidines and triazines are useful as general or selective preemergent and postemergent herbicides. Ortho-ethoxy and ortho-propoxy substituted benzenesulfonamides, such as 2-ethoxy-N-[[4-methoxy-6-(2,2,2-trifluoroethoxy)1,3,5-triazin-2-yl]aminoca rboxyl]benzenesulfonamide and N-[[4-methoxy-6-(2,2,2-trifluoroethoxy)-1,3,5-triazin-2-yl]aminocarbonyl]- 2-propoxybenzenesulfonamide, and their agriculturally suitable salts show pre-emergent and postemergent herbicidal utility in corn.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: November 3, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael D. Nicholson, Gerald A. Roy, Jr.
  • Process for the preparation of (3S)-3-[[[2-(protected amino)-4-thiazolyl]-oxoacetyl]amino]-2-oxo-1-azetidinesulfonic acid and 4-substituted derivatives thereof
    Patent number: 4704457
    Abstract: A compund having the formula ##STR1## can be prepared by coupling a compound having the formula ##STR2## or a salt thereof, with a compound having the formula ##STR3## to yield a compound having the formula ##STR4## and oxidizing that compound to yield the desired compound; wherein R is hydrogen or an amino protecting group;R.sub.1 is hydrogen, methly or ethyl;M.sup..sym. is an inorganic cation or a substituted ammonium ion; andM.sub.1.sup..sym. is hydrogen, an organic cation, or a substituted ammonium ion.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: November 3, 1987
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Jerome L. Moniot, Christopher M. Cimarusti, Rita T. Fox
  • Porosity gradient electrophoresis gel
    Patent number: 4704198
    Abstract: Describes a process for controlling the polymerization and cross-linked density of electrophoretic gel products useful for separation of bioorganic molecules, which process does not use initiators common to processes of the art. Electron beam polymerized gels afford the desired advantages of being ultra thin and having a high electrophoretic resolution with programmable porosity profiles.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: November 3, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Richard C. Ebersole, Robert P. Foss
  • Annealed polyester filaments and a process for making them
    Patent number: 4704329
    Abstract: A process for annealing drawn polyester filaments with saturated steam of at least about 150 psig provides products with a novel fine structure that results in an improved balance of strength, dyeability, shrinkage, crimpability and trimer in the product.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: November 3, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jack A. Hancock, Walter D. Johnson, Alan D. Kennedy
  • Stitched polyethylene plexifilamentary sheet
    Patent number: 4704321
    Abstract: A nonwoven fabric is provided which comprises a layer of nonbonded, polyethylene, plexifilamentary film-fibril strands, which layer is multi-needle stitched with a stitching thread that forms spaced-apart, parallel rows of stitches in the fabric. Stitching thread of spandex yarn which causes the fabric to contract to 35 to 70% of its original area is preferred. The nonwoven fabric is particularly suited for use as a wipe-cloth.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: November 3, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dimitri P. Zafiroglu
  • Gel confections
    Patent number: 4704293
    Abstract: A process for preparing a gel confection comprises: (a) heating a first component comprising sugar, water, and a first gelling agent under conditions which activate the first gelling agent; (b) preparing a second component comprising a second gelling agent which is a granular, nonbirefringent cold-water-swelling starch under conditions which prevent activation of the second gelling agent; (c) mixing the first component and the second component under conditions which activate the second gelling agent; (d) obtaining the desired mixture viscosity for forming; and (e) forming the mixture into the desired shape.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: November 3, 1987
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Carl O. Moore, Cheryl Brown
  • Semiconductor lasers
    Patent number: 4703488
    Abstract: These improvements to semiconductor lasers allow the fabrication of high-efficiency photoemitting devices thanks to a decrease in the threshold current necessary to optical emission stimulation. They consist in the application of a suitable magnetic field apt to confine carrier current within a limited zone of the active layer.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: October 27, 1987
    Assignee: Cselt - Centro Studi e Laboratori Telecomunicazioni S.p.A.
    Inventors: Pietro Di Vita, Marcello Potenza
  • High refractive index haloalkyl-functional shell-core polymers and their use in light scattering immunoassays
    Patent number: 4703018
    Abstract: Novel particle reagent for light scattering immunoassays are provided. The particle reagents are high refractive index shell-core polymers, having at least a partial surface coverage by a monomolecular layer of anionic surfactant, covalently bonded to compounds of biological interest. The novel particle reagents are particularly suited to protein immobilization by covalent bonding to the shell and are especially useful for light scattering immunoassays.
    Type: Grant
    Filed: February 20, 1985
    Date of Patent: October 27, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Alan R. Craig, Eileen G. Gorman
  • Apparatus for manufacturing a master rack
    Patent number: 4703145
    Abstract: Apparatus for manufacturing a master rack which in turn is employed in the manufacturing of forging dies to form nonuniform tooth configuartion, which includes an EDM machine having upper and lower platens and mechanism for raising and lowering the upper platen, rack blank support mechanism arranged for longitudinal movement in the rack blank axis and mounted on the lower platen, an electrode in the form of a facsimile of a helical pinion rotatably mounted in bracket attached to the upper platen, mechanism for rotating the electrode intermittently, mechanism causing axial movement of the rack blank past the electrode in accordance with the rotational movement of the electrode, a cam coordinating the position of the electrode in relation to the axis of the rack blank, and a cam follower attached to the bracket and contacting the last-named cam.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: October 27, 1987
    Assignee: Arthur E. Bishop
    Inventors: Arthur E. Bishop, Klaus J. Roeske
  • Turbine cooling waxy oil
    Patent number: 4702758
    Abstract: A stream of gas and waxy oil is cooled by an expansion turbine to form a wax/oil slurry, and the slurry is pipeline transported without wax deposition in the pipeline and/or to prevent melting of permafrost along the pipeline right of way.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: October 27, 1987
    Assignee: Shell Western E&P Inc.
    Inventor: Julia S. Geer
  • Process for producing high tenacity polyhexamethylene adipamide yarn having ribbon cross-section
    Patent number: 4702875
    Abstract: A polyhexamethylene adipamide yarn characterized by a tenacity greater than 4.5 g/den., an elongation of from 25-40% constituent ribbon cross-section filaments having a length to width ratio greater than 3 from 9 process for making such yarn including a delayed quench and a two-stage hot chest draw.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: October 27, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Uel D. Jennings
  • Analogs of platelet activating factor
    Patent number: 4702864
    Abstract: 1-Thioether-1-acylaminophosphatidylcholine compounds are structural analogs of platelet activating factor and useful for inhibition of phospholipase A.sub.2, reduction of blood pressure, and alleviation of inflammation.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: October 27, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ronald L. Magolda, Pasquale N. Confalone, Paul R. Johnson
  • 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.
  • Shock resistant vehicular lamp
    Patent number: 4703400
    Abstract: A vehicular lamp having a one piece open topped resilient housing containing an outer peripheral groove that permits the housing to be snapped into a receiving opening formed in a body panel of a vehicle. The housing further includes an inner peripheral groove located above the outer groove into which a lens is snap fitted to close the housing. The inner groove is offset from the outer groove a sufficient distance so that the lens can be removed and replaced without having to remove the housing from the body panel. An outwardly disposed lip protrudes from the top of the outer groove that is inclined downwardly over the groove opening so that it will form a biased seal against the rim of the panel opening when the lamp is snap-locked in place.
    Type: Grant
    Filed: July 24, 1986
    Date of Patent: October 27, 1987
    Assignee: R. E. Dietz Co.
    Inventors: Donald W. Vescio, Daniel S. Latham
  • 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
  • Apparatus for reducing volume and surface defects in silica optical-fibres
    Patent number: 4702759
    Abstract: The method allows surface defect reduction in silica optical-fibres by enriching the external layer by silica bonded carbon atoms within the silica network: SiC.SiO.sub.2. Carbon is obtained from chemical reaction directly during the drawing step.Volume defects are reduced by rapidly cooling the fibre structure heated up to vitrous transition temperature.The apparatus allows the method to be carried out during drawing step.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: October 27, 1987
    Assignee: Cselt-Centro Studi e Laboratori Telecommunicazioni S.p.A.
    Inventor: Giacomo Roba