Patents Assigned to I
  • Preparation of mixed boron and aluminum nitrides
    Patent number: 4764489
    Abstract: Method for making a ceramic mixture of boron and aluminum nitrides in the ratio of about 0.2 to 20 g atoms of aluminum per g atom of boron, and method for making shaped articles of the ceramic and of the intermediate from which the ceramic is prepared, comprising the steps (i) reacting a boron nitrogen compound with an organoaluminum compound in a suitable solvent to form a shapeable intermediate, and (ii) heating the intermediate at temperatures and under conditions to effect formation of the mixed nitrides.
    Type: Grant
    Filed: December 10, 1987
    Date of Patent: August 16, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John D. Bolt
  • Photoreactive benzoylphenylalanines and related peptides
    Patent number: 4762881
    Abstract: Provided is a benzoylphenylalanine of the formula: ##STR1## wherein ##STR2## is in the m or p position; and Pr is a protecting group which is easily cleavable in the presence of a peptide bond by a mild acid or base.This benzoylphenylalanine group is incorporated into a peptide chain which can be attached to a solid substrate having a reactive hydrogen by exposure to low energy ultraviolet light.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: August 9, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James C. Kauer
  • Herbicidal pyrazolesulfonamides
    Patent number: 4762550
    Abstract: This invention relates to novel pyrazolesulfonamides, agricultural compositions thereof and the methods of their use as general and/or selective herbicides and/or plant growth regulants.
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: August 9, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Stephen L. Hartzell
  • Optical connector receptacle and plug
    Patent number: 4762388
    Abstract: A receptacle adapted for connection in tight fit with an optical connector plug having a protective guide member surrounding a ferrule accommodating an optical fiber therein and spaced away from the outer circumference of the ferrule. The receptacle comprises at least a first supporting member having a hollow passage capable of receiving the ferrule, and a second supporting member spaced from the first supporting member for receiving and supporting the protective guide member of the ferrule. The plug comprises at least a ferrule containing an optical fiber therein and adapted to be received in the hollow passage of the first supporting member of the receptacle, and a protective guide member surrounding the ferrule at a position spaced away from the outer circumference of the ferrule and adapted to be received in the space between the first and second supporting members of the receptacle.
    Type: Grant
    Filed: March 15, 1985
    Date of Patent: August 9, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Toshiyasu Tanaka, Sadakazu Ariga
  • Analysis device
    Patent number: 4762683
    Abstract: A centrifugal analysis device in which film capillaries communicate with peripheral cells, with a hydrophilic capillary providing the cell inlet and a hydrophobic capillary providing the cell outlet.
    Type: Grant
    Filed: September 16, 1986
    Date of Patent: August 9, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William A. Romanauskas
  • Combination automobile seat and stroller
    Patent number: 4762331
    Abstract: A combination car seat and stroller having a plurality of wheels which are pivotable between a first, lowered position for use as a stroller and a second, raised position for use as a car seat. An extendable handle is provided for pushing the apparatus when the wheels are in the first, lowered position. A spring or clip is provided for locking the wheels in the first, lowered position for use as a stroller. The wheels are pivoted to a second, raised position to allow the apparatus to be placed on the seat of an automobile, an airplane seat, or other surface. Slots in the arms of the chair are provided for releasably engaging the apparatus with the seatbelt of the automobile or airplane seat. The apparatus is provided with a selectably extendable footrest whch can be retracted when the wheels are pivoted to the second, raised position.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: August 9, 1988
    Assignee: Gee-I-Go, Inc.
    Inventors: J. Camille Tucker, Klaus D. Weiswurm
  • Trehalose as stabilizer and tableting excipient
    Patent number: 4762857
    Abstract: An improved method for preparing tablets useful in diagnostic and therapeutic applications, utilizing trehalose as an excipient and stabilizer, is provided.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: August 9, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ernest Bollin, Jr., Mark G. Fletcher
  • Peripherally arrayed closure fastener system
    Patent number: 4762346
    Abstract: Peripheral locking system comprising a frame enclosing an aperture and a closure for the aperture having a polymeric member extending around a portion of the perimeter of the aperture and mounted in a track, designed to lock the closure at at least two points upon movement of the polymeric member.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: August 9, 1988
    Assignee: E. I. Du Pont de Nemours and Comapny
    Inventor: William J. King
  • Foldable power take-off shaft shield
    Patent number: 4761152
    Abstract: A tractor power take-off shaft shield assembly having fixed side plates projecting from a tractor wall on either side of the shaft(s), a top plate hinged to the wall and sized to pivot between the side plates, and a slot in one and preferably both side plates each receiving a slot follower pivotably attached to the top plate, which is set in normal, lowered or raised position by positioning the slot follower(s). Preferred embodiments include each slot having an upper slot section angled downwardly somewhat from horizontal to support the slot follower when the tractor is not in use and cause it to automatically return the top plate to its normal position during tractor use. Some preferred embodiments include sidewalls on the top plate adjacent to the side plates.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: August 2, 1988
    Assignee: J. I. Case Company
    Inventor: Gerald L. Wagenbach, Jr.
  • Multi-range shot shell
    Patent number: 4760793
    Abstract: Shot shell having a stratified payload of at least two different shot sizes, the larger diameter shot being closer to the mouth of the shell than the smaller diameter shot.
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: August 2, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward I. Herring, III
  • Herbicidal heterocyclic sulfonamides
    Patent number: 4761173
    Abstract: Substituted heterocyclic sulfonamides having herbicidal activity and agriculturally useful compositions comprising such compounds.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: August 2, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas R. Dean
  • Quick coupler assembly
    Patent number: 4761113
    Abstract: A quick coupler for attaching various material handling implements to a lift arm. The quick coupler includes an opening on one end for pivotal connection with the lift arm and a slotted end portion for selective engagement with a mounting pin on the implement. An intermediate portion of the quick coupler includes a mounting or coupler pin that extends laterally beyond the sides of the quick coupler. An actuating mechanism including a push-pull link is connected to the quick coupler for rotating it about the end of the lift arm. The quick coupler includes an element which may be used for lifting or positioning objects while the quick coupler is fully attached to the implement. Each implement is provided with a pair of opposed attachment members which include slots for receiving the outer laterally extending portions of the quick coupler mounting pin.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: August 2, 1988
    Assignee: J. I. Case Company
    Inventors: Wayne G. Smith, David V. Martinez, Robert E. Mozingo, Charles B. Hanson
  • Tubular writing pen tip with adjustment means
    Patent number: 4761090
    Abstract: An improved tubular writing pen having a writing pen body (3) and a forepart (1) joined to it that holds in a forward direction a writing tube (5). The forepart (1) is revolvable, yet is installed axially non-dislocatably in the pen body (3) and in the latter is braced against dislocatability in a rearward direction by a support surface (14). A writing fluid conductor extends into the writing tube (5). A coupler element (7) is fastened to the writing conductor and stands in contact with a bearing surface of an adjuster element (4) when raised from the drawing surface, and which is screwed into the forepart (1) and held non-rotatable with respect to the forepart.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: August 2, 1988
    Assignee: Koh-I-Noor Rapidograph, Inc.
    Inventor: Djing-San Goh
  • Device for turning a moving web
    Patent number: 4760946
    Abstract: In a device for the guiding of a moving web (1) that has on its inner side a contact-sensitive surface (3), the web (1) separates two zones (13, 14) in the guide region from one another. The outer zone (14) is formed by a housing (7) connected with a reduced pressure source (P). The inner zone (13) is connected with the atmosphere. To seal the housing (7) against the atmosphere, sealing elements (16, 17) extending across the width of the web at the beginning and end zones of the guide region interact with the outer side of the web (1). As a result of the pressure difference, a gap is formed between the guide surfaces (8, 9) of a support (6) and the web, so that the contact-sensitive surface is not supported in the guide region.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: August 2, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Altan Bassa
  • Preparation of cyanomethyl esters
    Patent number: 4761494
    Abstract: Cyanomethyl esters are prepared by reacting a carboxylic acid halide with an alpha-hydroxynitrile, a molar excess of a hydrogen halide acceptor and a catalytic amount of a tertiary-aminopyridine or N-methylimidazole.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: August 2, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Walter L. Petty
  • Coating composition of an amine polymer and a blocked polyisocyanate
    Patent number: 4760167
    Abstract: A polymerizable compound 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;The compound is useful for forming polymers used in coating compositions for finishing the exterior of automobiles and trucks.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: July 26, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Joseph A. Vasta
  • Monolayer polyethylene shrink film
    Patent number: 4760116
    Abstract: This invention relates to a heat-shrinkable film consisting essentially of a blend of 99.5-98.5 weight % of linear low or medium density polyethylene and 0.5-1.5 weight % of one or more copolymers of ethylene with a monomer selected from vinyl acetate and acrylic acids or esters, where said film has been cross-linked to the degree induced by an irradiation dosage of about 1 to 5 megarads.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: July 26, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard K. Roberts
  • Composites of stretch broken aligned fibers of carbon and glass reinforced resin
    Patent number: 4759985
    Abstract: A coating of a viscous lubricant applied prior to stretch-breaking permits forming slivers of stretch-broken carbon fibers. When an anti-static ingredient is added to the viscous lubricant cohesive slivers of stretch-broken glass fibers can be formed. Composites of matrix resin reinforced with these slivers exhibit high strength, tensile stiffness, and good formability.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: July 26, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas E. Armiger, David H. Edison, Herbert G. Lauterbach, James R. Layton, Richard K. Okine
  • Herbicidal sulfonamides
    Patent number: 4759790
    Abstract: This invention relates to herbicidally active sulfonamide compounds having a heterocyclic carbonyl group ortho to the sulfonyl bridge.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: July 26, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Joel R. Christensen
  • Process for the preparation of alkyl 3-chlorosulfonylthiophene-2-carboxylate
    Patent number: H504
    Abstract: A process for preparation of chlorosulfonyl thiophene compounds comprising contacting a thiophenamine with sodium or potassium nitrite to produce a diazonium salt, then contacting said salt with sulfur dioxide and cuprous or cupric chloride, or bromide. Addition of gaseous HCl, concentrated H.sub.2 SO.sub.4, or oleum to the diazotization mixture enhances yield.
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: August 2, 1988
    Assignee: E. I. Du Pont de Nemours
    Inventors: George Levitt, Richard V. Pater