Patents Assigned to E
  • Driving unit for the knife holders of cross cutters or the like
    Patent number: 4432262
    Abstract: One of the two knife holder shafts in a cross cutter for webs of paper or the like is driven by a unit wherein a motor rotates the input shaft of a bevel gear drive whose output shaft drives or constitutes one shaft of a universal joint. The other shaft of the universal joint is driven by the one shaft and transmits torque to the knife holder shaft or shafts by way of a step-up gear transmission and a clutch which allows for changes in angular positions of the knife holder shafts with reference to the universal joint. An extension of the axis of the input shaft of the bevel gear drive intersects the axes of the shafts of the universal joint at the point where the axes of the shafts of the universal joint intersect each other. To this end, the other shaft of the universal joint contains an elastically deformable but torsion-resistant insert.
    Type: Grant
    Filed: April 26, 1983
    Date of Patent: February 21, 1984
    Assignee: E. C. H. Will (GmbH & Co.)
    Inventors: Alfred Besemann, Willi Rehwald
  • Antiinflammatory and/or analgesic 2,3-diaryl-5-silyl thiophenes
    Patent number: 4432974
    Abstract: 2,3-Diaryl-5-silyl thiophenes, such as 2,3-bis(4-methoxyphenyl)-5-(trimethylsilyl)thiophene; 2,3-bis(4-methoxyphenyl)-5-(ethenyldimethylsilyl)thiophene; and 2,3-bis(4-methoxyphenyl)-5-[(2-propenyl)dimethylsilyl]-thiophene, are useful in the treatment of inflammation and/or pain.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: February 21, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Stephen B. Haber
  • Phosphine azacrown ether compounds
    Patent number: 4432904
    Abstract: Phosphine azacrown ethers and complexes thereof with selected cations as promoters for hydroformylation catalysts; adducts of said promoters with selected hydroformylation catalysts; process for making the promoters; and process for hydroformylation.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 21, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Stephan J. McLain, Francis J. Waller
  • Hydrocarbon foams
    Patent number: 4432882
    Abstract: Liquid hydrocarbon foams containing from 0.05 to 5 wt. % of a fluorocarbon polymer containing from 25 to 60 wt. % units of the structure ##STR1## where --R.sup.1 is --H or --F, m is an integer from 2 to 10, and n is 1 or 2 and 75 to 40 wt. % units of the structure ##STR2## where --R.sup.3 is an alkyl group containing from 10 to 20 carbon atoms. The foams are useful as oil and gas well fracturing fluids and for applying the fluorocarbon polymer to textiles as an oil and water repellant.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: February 21, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Stuart Raynolds, Louis B. Fournier
  • Process for making liquid composition of perfluorinated ion exchange polymer, and product thereof
    Patent number: 4433082
    Abstract: A process is provided for making a liquid composition of a perfluorinated polymer having sulfonic acid or sulfonate groups in a liquid medium by contacting the polymer with a mixture of 25 to 100% by weight of water and 0 to 75% by weight of a second liquid component such as a lower alcohol, e.g., propanol or methanol, at a temperature of at least 180.degree. C. (at least 240.degree. C. when about 90% to 100% water is used), in a closed system. The liquid composition made by this process, or modified liquid products prepared therefrom, are used in coating various substrates, in casting films, and in repairing perfluorinated ion exchange films and membranes. The process is also useful in recovering perfluorinated polymer having sulfonic acid or sulfonate groups from scrap and used articles made of such polymer or containing such polymer as a component part thereof.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: February 21, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Walther G. Grot
  • High-float, rapid-setting emulsion
    Patent number: 4433084
    Abstract: A high-float rapid-setting emulsion comprised of asphalt, tall oil, tall oil derivatives or mixtures thereof, copolymer selected from the group consisting of a styrene-butadiene-styrene block and styrene-isoprene-styrene block, petroleum distillate, water, and strong base. In addition, methods of manufacturing a high-float, rapid-setting emulsion including a first method comprising mixing asphalt with tall oil, tall oil derivatives or mixtures thereof, and combining and mixing said mixture with treated water comprising tall oil, tall oil derivatives or mixtures thereof, strong base, and water.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: February 21, 1984
    Assignee: K. E. McConnaughay, Inc.
    Inventors: Larry F. Ostermeyer, Michael N. Guerin
  • Phosphonamidate compounds
    Patent number: 4432971
    Abstract: Phosphonamidates 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: June 28, 1982
    Date of Patent: February 21, 1984
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Donald S. Karanewsky, Edward W. Petrillo, Jr.
  • Phosphonamidate compounds
    Patent number: 4432972
    Abstract: Phosphonamidates of the formula ##STR1## wherein X is an amino acid or ester. These compounds possess angiotensin converting enzyme inhibition activity and enkephalinase inhibition activity. Thus they are useful as hypotensive and analgesic agents.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: February 21, 1984
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Donald S. Karanewsky, Edward W. Petrillo, Jr.
  • Parallel cylinder internal combustion engine
    Patent number: 4432310
    Abstract: The engine disclosed herein comprises a number of pairs of pistons, the two pistons in each pair acting in unison and the number of pairs being arranged parallel to each other and said pistons also being positioned parallel to and in a circle around the mainshaft which has a cam lobe located at a convenient part of the mainshaft and encircling the mainshaft. The cam lobe has opposite surfaces which have rises and dips, or in other words, sinusoidal surfaces, and are in contact with pairs of bearings attached to connecting rods, these bearings being on opposite sides of the cam lobe and at one time being driven in one direction by one of the two pistons in each pair and then at another time in the opposite direction by the other piston in that pair, the two pistons of that pair being connected to each other by the same connecting rod carrying the bearings which press against the cam lobe.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: February 21, 1984
    Assignee: Leonard J. E. Waller
    Inventor: Francis E. Waller
  • Apparatus for gel electrophoresis
    Patent number: 4431506
    Abstract: Vertical gel electrophoresis apparatus of the type wherein the gel is cast in a horizontal position using an extending top wall to define an end of the casting chamber, is improved by making the top wall removable to allow access to sample slots in the gel from directly overhead and to provide for attachment of a syringe holder at the position of the removed wall.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: February 14, 1984
    Assignee: E-C Apparatus Corporation
    Inventors: William W. Gorman, Jr., Esther M. Gorman
  • Ultrasonic vibrator for applying finish to yarn
    Patent number: 4431684
    Abstract: An ultrasonic vibrator of the type used to atomize liquid is used for applying liquid finish to a moving threadline. The liquid is supplied to a through passage in the tip of the horn of the vibrator in which it is atomized and applied to the threadline which is moving through the passage in the tip of the horn.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Alfred J. Strohmaier
  • Aqueous processible, alcohol resistant flexographic printing plates
    Patent number: 4431723
    Abstract: Photosensitive elastomeric compositions comprising about 40 to 90 weight percent of a heat workable, carboxyl- and sulfur-containing polymer of a diene; about 2 to 50 weight percent of a nongaseous, ethylenically unsaturated compound; and about 0.001 to 10 weight percent of a radical generating system; the compositions being useful for making flexographic printing plates.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Stephen Proskow
  • Ice-filled structure and tunnelling method for the egress and launching of deep-based missiles
    Patent number: 4431349
    Abstract: Missiles located in the deeper (hard rock) portion of a shaft or tunnel are protected from damage during a nuclear attack by a mass of ice, preferably trumpet-shaped, located in the outermost portion (e.g., 600-900 meters). When missile egress is required, an ice-supported passageway is bored through the ice, preferably by melting. The trumpet shape assures a straight path for missile egress even if the shaft or tunnel should become transversely displaced by a cratering explosion against the surface.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: David L. Coursen
  • Fast-curing olefin copolymer rubber compositions
    Patent number: 4431776
    Abstract: An elastomeric composition comprising an EPDM copolymer rubber; a sulfur curative for the copolymer rubber; about 5-15 parts by weight per 100 parts copolymer rubber of a chlorosulfonated polyolefin which contains 20-50 weight percent chlorine and 0.2-1.5 weight percent sulfur; and about 0.25-1 parts by weight per 100 parts copolymer rubber of a diamine-generating curing agent.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Wolfgang Honsberg
  • Novel fluorodioxoles and fluorodioxole polymers
    Patent number: 4431786
    Abstract: Novel fluorodioxoles which may have Cl or F substituents in the 4 or 5 positions and have two F or CF.sub.3 substituents in the 2 position are useful monomers for the preparation of homopolymers and copolymers with tetrafluoroethylene and terpolymers with tetrafluoroethylene and vinylidene fluoride. The homopolymers are suitable for glazing materials, while copolymers are useful, among others, for corrosion-resistant seals, gaskets, and linings.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward N. Squire
  • Mixed phosphors comprising both Gd.sub.2 O.sub.2 S and GdTaO.sub.4 and X-ray screens thereof
    Patent number: 4431922
    Abstract: An X-ray phosphor comprising a mixture of gadolinium oxysulfide and gadolinium tantalate, activated with trivalent terbium, is employed in X-ray conversion screens to convert X-rays to visible light, mostly in the green region of the spectrum.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Stanley H. Patten
  • Phenylhydroquinone from biphenyl by biotransformation with selected fungi
    Patent number: 4431736
    Abstract: Microbiological oxidation of biphenyl to bis-hydroxylated biphenyl employing Thamnostylum piriforme.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James A. Romesser
  • Toluic acid
    Patent number: 4431839
    Abstract: Process for oxidatively carbonylating toluene to toluic acid, at least 50 mol % of the toluic acid being the p-isomer, said process comprising contacting and reacting, at 110.degree.-250.degree. C., at a pressure of at least 500 psi (3.45 MPa), toluene, carbon monoxide, oxygen and the catalyst ingredients consisting essentially of(a) a compound of rhodium or iridium;(b) a sulfur oxy-acid or a Group Ia or IIa metal salt of a sulfur oxy-acid;(c) a sulfur oxy-acid or sulfur oxy-acid mixture having a Hammett acidity value (--H.sub.o) of greater than 7.0; and(d) a cupric salt of a sulfur oxy-acid;said catalyst ingredients containing 0.3-30 mol % of (a) and 70-99.7 mol % of (b+c+d), with the molar ratios (b/a) and (c/a) each being at least 2 and the molar ratio (d/a) being at least 0.5, and recovering toluic acid.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Francis J. Waller
  • Azeotropic distillation of hydroxyacetic acid
    Patent number: 4431486
    Abstract: The yield of hydroxyacetic acid produced from formaldehyde, water and carbon monoxide in the presence of a sulfuric acid catalyst and using crude recycled hydroxyacetic acid as the reaction medium is improved by azeotropic distillation of crude, recycle hydroxyacetic acid with toluene. The distillation step reduces the water content of feed thereby increases conversion of formaldehyde to hydroxyacetic acid and reduces formic acid content in the product.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Jean L. Balmat
  • Cell washing apparatus having radially inwardly directed retaining arms
    Patent number: 4431423
    Abstract: A cell washing apparatus having a pivotally movable sample tube holder provided with a radially inwardly directed arm having a grasping hook thereon. The hook engages a retaining surface disposed radially inwardly of the pivot point of the holder to restrain radial outward movement of the sample tube holder.
    Type: Grant
    Filed: March 10, 1982
    Date of Patent: February 14, 1984
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Oakley L. Weyant, Jr.