Patents Assigned to E
  • Patent number: 4771177
    Abstract: A point source for calibrating a gamma camera uses the nuclide cerium-141. The source is disposed in a shuttered, shielded housing. The shutter is incrementally advanceable to expose, over time, an increasing portion of the area of the source to maintain a relatively constant gamma ray flux therefrom.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: September 13, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ronald C. Brown
  • Patent number: 4770388
    Abstract: A latching device for the actuator in a valve installation. The actuator includes a handle for rotating a valve stem and a latch slidably mounted on the handle. The latch has one edge which abuts a stop when in the closed position and an opposed, angularly disposed, camming edge facing a stop at the open position.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: September 13, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Claude R. Carman
  • Patent number: 4771085
    Abstract: A printable dielectric composition comprising finely divided particles of talc and/or mica dispersed in a curable liquid composition containing acrylated rubber modified epoxy resin oligomer, acrylated polydiene oligomer and alkyl acrylate.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: September 13, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Christina N. Lazaridis
  • Patent number: 4770936
    Abstract: Application of hydrophobic silica to an anisotropic-melt forming polyester yarn reduces interfilament and intrafilament fusion during heat-strengthening. Improvements in adhesion of yarn to certain matrices are noted.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: September 13, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas E. Carney, Abraham Matthews
  • Patent number: 4770584
    Abstract: A self-locking demountable pin consisting of a central stay bolt with an internal hexagonal through bore for its tightening by a key and comprising at its two ends two opposite-handed external threads, right handed and left handed respectively, which cooperate with the corresponding threads of two elastic end nuts each provided with an annular flange having a frusto-conical surface and decreasing in thickness in an outward direction, its taper being greater than that of two frusto-conical flares into which the nuts are to be inserted.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: September 13, 1988
    Assignee: Nuovopignone Industrie Meccaniche e Fonderia S.p.A.
    Inventor: Costantino Vinciguerra
  • Patent number: 4770757
    Abstract: A presoaked perhalogenated polymer cation exchange membrane containing at least one type of acid groups, carboxyl or sulfonyl, is bonded to other articles such as edge-reinforcing tape, gasket, electrolytic cell frame, etc., by means of a pressure-sensitive adhesive material from the group of butyl rubber, styrene-butadiene rubber, and polyacrylate rubber. Presoaking of the membranes is done either in water or in an aqueous alkaline solution.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: September 13, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas C. Bissot, James T. Keating
  • Patent number: 4770690
    Abstract: A class of ortho-alkyl- and ortho-alkenyl-substituted benzenesulfonamides are useful as general or selective pre-emergent or post-emergent herbicides and as plant growth regulants.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: September 13, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Mary A. Hanagan, Mark E. Thompson
  • Patent number: 4769972
    Abstract: A machine for sealing the corner of a flexible bag member by applying a segment of adhesive tape from a roll of tape to a corner of the flexible bag where the tape is mechanically applied to the top, end and bottom surfaces of a corner of a bag member and a mechanical wiper applies an overhanging portion of the tape to a side surface in a neatly folded condition together with the mechanisms for supplying a cut segment of tape repetitively to bag members transported along a conveyor means.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: September 13, 1988
    Assignee: William E. Crawford
    Inventor: James G. West
  • Patent number: 4770445
    Abstract: A tube coupling adapted particularly for medical use includes three parts, namely a female tubular element 52, a male tubular element 50, and an intermediate ring 100 carrying at least one longitudinally extending latching arm 110. The ring is dimensioned to snap-fit into an external annular groove 90 on either the male or female element and the latching arm has an inwardly-extending hook portion 112 which can engage a flange 58 on the female or the male element as the case may be. This engagement holds these two elements together in an axial direction and allows them to rotate freely relative to one another.
    Type: Grant
    Filed: April 11, 1984
    Date of Patent: September 13, 1988
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Peter L. Steer, John V. Edwards
  • Patent number: 4769433
    Abstract: High strength, substantially linear, highly crystalline, high molecular weight-polyolefin shaped structure having a tenacity of greater than 15 g/den and an initial modulus of greater than 500 g/den by drawing never-processed polyolefin at a temperature of 60.degree. C. to 145.degree. C.; and processes for making never-processed polyolefin and such shaped structures.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Henri D. Chanzy, Bruno Rotzinger, Paul Smith
  • Patent number: 4769081
    Abstract: The rate and ease of water dispersibility and/or water solubility of powdered or granular starch materials are substantially enhanced by the incorporation therein of a small but effective amount of a glycoside surfactant ingredient.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: September 6, 1988
    Assignee: A. E. Staley Manufacturing Division of Staley Continental, Inc.
    Inventor: Stephen L. Maher
  • Patent number: 4768775
    Abstract: An exercising apparatus of the rowing type having a seat freely slidable on a rail, feet stirrups, and poles representing oars that are provided with one-way resistance. With these features, the apparatus is usable as a conventional rowing-type machine. It is convertible to alternate use by the additional features as follows: the seat is provided with a backrest and the seat is reversible on the rail. The poles are pivoted front to back, the resistance being applied in one of these directions only, and are further freely pivotable side-to-side. The seat is locked in place in its reversed position so that the poles can be moved by the user between a position with the arms extended to the sides and the arms extended to the front. Such movement is resisted on the side-to-front motion only.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: September 6, 1988
    Assignee: Frank E. Marshall
    Inventor: Frank E. Marshall
  • Patent number: 4769020
    Abstract: A male incontinence device is in the form of a condom having a urine outlet at its lower end. A self-adhesive strip is made in one piece with, or is attached to, the condom in such a manner that the length of the strip is at an angle of over 45.degree. and less than 90.degree. to the central longitudinal axis of the condom. One or both surfaces of the strip may carry adhesive. An applicator is also disclosed, as is a method of applying and securing a male incontinence device.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: September 6, 1988
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Ann Eaton
  • Patent number: 4769403
    Abstract: Thermoplastic polyarylate compositions having improved flame retardancy consisting essentially of polyacrylate, epoxy-containing polymer, brominated polystyrene and sodium antimonate.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert R. Luise
  • Patent number: 4769477
    Abstract: This invention relates to highly attrition resistant catalysts, catalyst precursors and catalyst supports and to processes for making and using them.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Horacio E. Bergna
  • Patent number: 4769072
    Abstract: For monitoring the condition of a universal fountain solution for planographic printing, a concentrated universal fountain solution is premixed with a color-change indicator material of predetermined characteristics such as lichen blue. The concentrated fountain solution is provided at a pH above about 3.5 and below about 4.5; the diluted fountain solution is formed by diluting such concentrated solution with water. The contamination occurring during planographic printing which is detrimental to fountain solution effectiveness and printing quality causes the pH of such diluted solution to increase. The indicator material provided initiates a change in color of the diluted fountain solution at a pH when the solution is beginning to lose effectiveness and provides an intense color change as pH increases to a level indicating that the solution should be changed in order to avoid deterioration in the desired quality of printing.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: September 6, 1988
    Assignee: Louis E. Bondurant
    Inventors: Louis E. Bondurant, Francis R. Bordeaux
  • Patent number: 4769150
    Abstract: Blood is oscillated between an inlet and an outlet of a flow path on a membrane during plasmapheresis by filtration.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Joseph M. Ramstack
  • Patent number: D297570
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William A. Ambrose, Fernando A. Garcia
  • Patent number: D297575
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: September 6, 1988
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Ian Yates
  • Patent number: RE32743
    Abstract: An apparatus for detecting temperature variations over selected regions of living tissue is in the form of a low pressure supported pillow structure including a first wall portion of temperature responsive material and a second wall portion of transparent material to permit viewing of the temperature responsive material. The wall portions comprise a fluid chamber including an inflation valve to permit inflating the pillow structure when gaseous fluids are used.The method of using the pillow structure comprises pressing the temperature responsive film into conformity with the tissue, or portion of other object to be scanned, and viewing the temperature response through the clear wall portion.The flexible film is preferably also elastic and carries liquid crystals on its inner surface to give it a temperature responsive characteristic.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: September 6, 1988
    Assignee: E-Z-EM, Inc.
    Inventors: Phillip H. Meyers, Franklin R. Greene