Patents Assigned to E
  • Transfer tail winding device for tandem windups
    Patent number: 4398676
    Abstract: Yarn winding apparatus having a pair of windups one above the other. A pair of rotatable package supports for each windup are alternately movable into surface driven engagement with a drive roll. During winding packages contact the drive roll until full. In doffing, an empty package contacts the drive roll; the yarn breaks from the full package to engage the empty package. A guide plate is rotated in contact with the yarn to lift it from the traverse guides and direct it to a location outside the path of travel of the traverse guides where a transfer tail is wound.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: August 16, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Johannes E. A. Koppen, Samuel E. Workman
  • Fiber-forming polyesters of aromatic ketohydroxy acids
    Patent number: 4398015
    Abstract: Homopolyesters and copolyesters of specific ketohydroxy acids and which exhibit melt-anisotropy and are melt-spinnable into oriented filaments that can be heat treated to high tenacity.
    Type: Grant
    Filed: August 3, 1982
    Date of Patent: August 9, 1983
    Assignee: E. I. Du Pont de Nemours & Company
    Inventor: August H. Frazer
  • Personal cleaning products
    Patent number: 4397754
    Abstract: A disposable personal cleaning product comprises a thin substrate, preferably open celled polyurethane foam, from 1-5 mm thick having dispersed throughout its cross-section a detergent composition comprising a non-ionic alcohol ethoxylate and a fatty acid soap, preferably 90-10% by weight of the former and 10-90% by weight of the latter, the ratio of detergent composition to substrate being between 2:1 and 10:1 by weight. The substrate may be provided with slits or similar openings which may be engaged by a user's fingers to enable the product to be maintained in an open or spread condition during use.
    Type: Grant
    Filed: September 24, 1981
    Date of Patent: August 9, 1983
    Assignees: Caligen Foam Limited, W. E. Saxby (Nottingham) Limited
    Inventors: Peter S. Collishaw, Donald Bird
  • Dry nonelectroscopic toners for toning tacky image surfaces
    Patent number: 4397941
    Abstract: Dry nonelectroscopic toners comprising pigmented organic resin particles having a size distribution of 0.2 to 30 micrometers, not more than 50 percent of the particles being less than 1 micrometer surface treated with a combination of at least 1% by weight of an antistatic agent and at least 0.5% of a slip agent as described. The preparation of the toners is described. The toners are useful in color developing positive and negative-working photosensitive elements particularly in an automatic toning machine. Improved clean-up and low stain propensity are achieved.
    Type: Grant
    Filed: December 29, 1981
    Date of Patent: August 9, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Michael G. Fickes
  • Process for generating a latent magnetic image
    Patent number: 4397929
    Abstract: In forming a latent magnetic image by imagewise demagnetization of a magnetized layer, less than the entire thickness of the exposed area is demagnetized so as to induce a magnetization of opposite polarity in the demagnetized area, thus reducing the net strength of the residual and induced magnetic fields within the exposed areas.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: August 9, 1983
    Assignee: E. I. Du Pont De Nemours & Co.
    Inventors: William Bindloss, Fredrick C. Zumsteg, Jr.
  • Process for preparing PTFE powdered resins containing pigments employing ammonium carbonate or ammonium bicarbonate
    Patent number: 4397980
    Abstract: Process for uniformly incorporating pigment into fine powder TFE polymers by premixing pigment and ammonium carbonate or bicarbonate, and then adding the mixture to a TFE polymer aqueous dispersion, followed by coagulating the pigment and TFE polymer.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: August 9, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Theodore G. Tsakumis
  • Apparatus for applying finish to a yarn
    Patent number: 4397164
    Abstract: A yarn finish applicator in which finish is metered to a slot running from top to bottom of the applicator. The configuration of the body of the applicator and its slot provides an edge at the exit end of the applicator and a slot that is slightly wider at the location at which finish is metered to the slot than at exit of the slot. Two rods are located just below the exit edge of the applicator to collect and drain to a receiver any drops of excess finish which form at the exit edge of the applicator when the threadline is not running.
    Type: Grant
    Filed: January 7, 1982
    Date of Patent: August 9, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edwin K. Binnersley
  • Antiinflammatory 17-spiroandrostenes
    Patent number: 4397782
    Abstract: Topical antiinflammatory activity is exhibited by steroids having the formula ##STR1## and the 1,2-dehydro and 15,16-dehydro derivatives thereof, wherein R.sub.1 is hydrogen, alkyl, carboxyl, or alkoxycarbonyl;R.sub.2 is hydrogen, chlorine, bromine, fluorine, methyl, hydroxyl or a conventional hydrolyzable ester thereof, methoxy, or oxo (.dbd.O);R.sub.3 is carbonyl or .beta.-hydroxymethylene;R.sub.4 is hydrogen or fluorine;R.sub.5 is hydrogen, methyl or fluorine;X and Y are the same or different, and each is S, O, NH, N--CH.sub.3, SO or SO.sub.2 ; andn is 1, 2, 3, 4 or 5.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: August 9, 1983
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Ravi K. Varma
  • High solids coating composition of an acrylic polymer a polyester polyol and an alkylated melamine crosslinking agent
    Patent number: 4397989
    Abstract: The high solids coating composition contains at least 40% by weight of a binder of film-forming constituents in which the constituents are of(1) an acrylic polymer of styrene or methyl methacrylate or mixtures thereof, an alkyl acrylate or an alkyl methacrylate and a hydroxyl alkyl acrylate or methacrylate(2) a polyester polyol and(3) an alkylated melamine formaldehyde crosslinking agent and optionally, an acid catalyst;the composition is particularly useful as a primer or an exterior finish for automobiles, trucks, airplanes and can be used as an appliance finish and for coil coatings.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: August 9, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Paul L. Adesko
  • Herbicidal o-sulfamylmethylbenzenesulfonamides
    Patent number: 4397679
    Abstract: The compounds are of the class of N-[(substituted pyrimidin-2-yl)aminocarbonyl]-2-(sulfonylmethyl)benzenesulfonamides, useful as preemergent or postemergent herbicides or plant growth regulants.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: August 9, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard F. Sauers
  • Method of making bumped-beam tape
    Patent number: 4396457
    Abstract: Mechanically punching bumps in a thin copper or aluminum foil and etching the foil to form beams with a bump at the end of each beam. Alternatively increasing the layers by casting or gluing polyimide film to the foil and etching the polyimide film in designated areas to expose the copper or aluminum.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: August 2, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frank C. Bakermans
  • Speed-increasing adjuvants for silver halide emulsions
    Patent number: 4396711
    Abstract: Derivatives of thiazolidine are used in photographic silver halide emulsions to increase their speed 40% or more with little or no increase in emulsion fog. Lower silver halide coating weights are thus possible.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: August 2, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Joseph D. Overman
  • Substrate having a pigmented color coat and a clear coat of a _composition of an acrylic, polyester and a melamine resin
    Patent number: 4396672
    Abstract: A substrate having a cured color coat layer of a pigmented coating composition and a cured clear coat layer firmly adhered to the color coat layer; wherein the layers are formed from a high solids coating composition contains at least 40% by weight of a binder of film-forming constituents in which the constituents are of(1) an acrylic polymer of styrene or methyl methacrylate or mixtures thereof, an alkyl acrylate or an alkyl methacrylate and a hydroxyl alkyl acrylate or methacrylate,(2) a polyester polyol, and(3) an alkylated melamine formaldehyde crosslinking agent and optionally, an acid catalyst;the clear coat/color coat finish is particularly useful as an exterior finish for automobiles, trucks, and airplanes.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: August 2, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Paul L. Adesko
  • Substrate coated with crater resistant acrylic enamel
    Patent number: 4396680
    Abstract: A substrate of either metal or plastic which is coated with a crater resistant enamel coating composition is used for the exterior of trucks and automobiles; the binder of the coating composition is a blend of(A) an acrylic polymer having hydroxy groups and contains about 0.1-10% by weight of a polymerized perfluoro carbon constituent of the formula ##STR1## where R is H or CH.sub.3, R.sup.1 is alkyl, R.sup.2 is perfluoro alkyl and n is 0 or 1 and(B) an aminoplast crosslinking agent such as an alkylated melamine formaldehyde resin;The composition is applied and baked by conventional techniques, to form a finish on the substrate that has an excellent appearance.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: August 2, 1983
    Assignee: E. I. Du Pont de Nemours and Co.
    Inventor: David C. Chang
  • Pincers-type gripper for seizing objects and gripping head equipped with such grippers
    Patent number: 4395069
    Abstract: A pincers-type gripper for seizing bottles includes an operating rod provided with a pin extending transversely to the rod and each end of which is loosely fitted in an aperture provided in each jaw, each aperture including two internal cam surfaces contacting the ends of the pin to allow the jaws to be moved towards or from one another when the operating rod is actuated.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: July 26, 1983
    Assignee: E. P. Remy et Cie.
    Inventor: Gerard Lebret
  • Nitrobenzofurazan derivatives
    Patent number: 4395556
    Abstract: Nitrobenzofurazan derivatives having the formula ##STR1## are provided wherein R.sub.1 and R.sub.2 each is hydrogen, lower alkyl or phenyl-lower alkyl; R.sub.3 is hydrogen, hydroxy or lower alkyl; R.sub.4 is hydrogen or lower alkyl; m is 2 or 3; and n is 0, 1 or 2; these compounds are useful analytical tools.
    Type: Grant
    Filed: February 4, 1982
    Date of Patent: July 26, 1983
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Callixtus E. Ita, Anthony F. Heald, Peter Egli
  • Misalignment system for a microtome
    Patent number: 4395075
    Abstract: A misalignment pivot system for permitting pivotal movement of a main pivot socket in a direction along an axis Q-Q' connecting a pair of main pivot balls includes a pair of misalignment pivot balls one of which is captured between a fixed socket and a V-groove. The misalignment pivot system permits pivotal movement of the main pivot socket without the imposition of a restoring force.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: July 26, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventors: Lawrence R. Barrett, Allan J. Weiner
  • Polyester fiberfill batting having improved thermal insulating properties
    Patent number: 4395455
    Abstract: A plurality of layers of high-loft polyester fiberfill batting separated by sheets of metal foil or metalized polymeric film results in an unexpected increase in thermal insulating properties based on weight which can provide thermal insulation equivalent to natural down.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: July 26, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Michael S. Frankosky
  • Mounting and guiding device for adjustable motor vehicle seats
    Patent number: 4395011
    Abstract: A mounting and guiding device for adjustable motor vehicle seats comprises longitudinal C-section guides in which omega (.OMEGA.)-section movable guides are slidable. The beams formed by the guides enclose a rack which is formed by a sheet metal strip fitted centrally of the C-section guide and is provided with slots. The seat frame is articulated by uprights onto brackets which are fitted to the front of the guides, and is locked by pins fixed at the rear of the guides. The device has an operating mechanism which comprises bolts engageable in the slots of the racks through the openings in the guides, and is articulated between brackets which are fixed to the rear of the movable guides. The racks are covered and the space beneath the seat is unobstructed to serve as a storage space if required.
    Type: Grant
    Filed: November 26, 1980
    Date of Patent: July 26, 1983
    Assignee: Lifel di Torta E C. S.A.S.
    Inventor: Mario Torta
  • Demonstrator for indicating the effect of additive in engine oil and the like
    Patent number: D270073
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: August 9, 1983
    Assignee: Dolores E. Stead
    Inventor: Clinton H. Morey