Patents Assigned to E
  • Star configured local area network having priority allocation
    Patent number: 4839886
    Abstract: An electronic device for a local area network of electronic apparatuses is characterized by a timer operatively associated with each apparatus, each timer being retriggerably responsive to the occurrence of a periodic feature of a code to assert a line driver for the period of the timer. The period of the timer is greater than the period of the feature. A priority allocation arrangement is connected such that the assertion of a given timer disables the other timers.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: June 13, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Ming-Daang Wu, Charles J. Intrieri, Jr.
  • Heterocyclic acyl sulfonamides
    Patent number: 4838925
    Abstract: This invention relates to novel heterocyclic carbonyl sulfonamides which are particularly useful as agricultural chemicals.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: June 13, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Chi-Ping Tseng
  • Composition for polymerization with improved activator system
    Patent number: 4839324
    Abstract: Composition for polymerization of ethylenically unsaturated monomer with initiator of perester salt of maleic acid and bisulfite activator in water-in-oil emulsion form.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: June 13, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald E. Swarts
  • Polyimide gas separation membranes
    Patent number: 4838900
    Abstract: Aromatic polyimide gas separation membranes of the formula: ##STR1## or mixtures thereof, --R'--is ##STR2## linear alkylene groups of the formula (CH.sub.2).sub.1-3 or mixtures thereof, where --R" is ##STR3## are independently primary or secondary alkyl groups having 1 to 6 carbon atoms preferably methyl, ethyl, or isopropyl --Z and --Z.sub.1 are independently hydrogen or halogens such as iodine, bromine or chlorine preferably chlorine, and where n=0-4.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: June 13, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Richard A. Hayes
  • Minimum filler runner for air conveyor system
    Patent number: 4838169
    Abstract: An improved runner for use with a sailrail hydrostatic bearing levitation system is disclosed. The runner uses a substantially solid core having a degree of flexibility in a vertical plane, a thin pad of flexible, compliant material covering at least the transversely convex lower surface of the core, and an outer flexible, compliant cover enclosing the pad and the core. In another embodiment there is pad material on the upper surface of the core as well. The runner can be secured to a pallet and provides specific advantages over prior art runners which had a larger profile, were more expensive and were not as efficient as the low profile runner of this invention.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: June 13, 1989
    Assignee: E. B. Eddy Forest Products, Ltd.
    Inventor: Herbert E. Gladish
  • Herbicidal sulfonamides
    Patent number: 4838929
    Abstract: Sulfonamides such as N-[(4,6-dimethoxypyrimidin-2-aminocarbonyl]-1,3-dihydro-6-methyl-3-oxofuro [3,4-c]pyridine-4-sulfonamide are useful as herbicides and plant growth regulants.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: June 13, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mary A. Hanagan
  • Method of inhibiting onset of or treating migraine headache using a thromboxane A2 receptor antagonist
    Patent number: 4839384
    Abstract: A method is provided for inhibiting onset or treating migraine headaches by administering a thromboxane A.sub.2 receptor antagonist before of during the migraine which thromboxane A.sub.2 receptor antagonist is a 7-oxabicycloheptane prostaglandin analog.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: June 13, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Martin L. Ogletree
  • Ethylene copolymer compositions
    Patent number: 4839412
    Abstract: Certain ethylene copolymers that contain an ethylene/anhydride graft copolymer and a magnesium hydroxide or aluminum trihydrate flame and smoke retardant have a good balance of strength and flame and smoke retardant properties. The compositions preferably also contain polyethylene, and/or ionomeric ethylene copolymer and/or an ethylene/propylene elastomer.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: June 13, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Jerald R. Harrell, Lawrence C. Muschiatti
  • Star configured local area network
    Patent number: 4839885
    Abstract: An electronic device for a local area network of electronic apparatuses is characterized by a timer operatively associated with each apparatus, each timer being retriggerably responsive to the occurrence of a periodic feature of a code to assert a line driver for the period of the timer. The period of the timer is greater than the period of the feature.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: June 13, 1989
    Assignee: E. I. DuPont De Nemours and Company
    Inventor: Ming-Daang Wu
  • Method and apparatus for predicting and monitoring aircraft takeoff performance
    Patent number: 4837695
    Abstract: A method for predicting and monitoring the takeoff performance of an aircraft uses information from one or more previous takeoffs of the aircraft to generate a prediction of the takeoff performance for the current takeoff. In the preferred embodiment, a takeoff profile for the current takeoff is generated and includes information about predetermined characteristics of the aircraft and information about ambient conditions at an airport from which the takeoff is being monitored. Expected performance data for the current takeoff is then generated from the takeoff profile and used to select a set of actual performance data previously stored from the one or more previous takeoffs. A selected "best fit" actual performance data set is then displayed in an appropriate fashion. Upon takeoff, a set of monitored performance data is generated as a function of one or more of sensed takeoff parameters.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: June 6, 1989
    Assignee: E-Systems, Inc.
    Inventor: Steven F. Baldwin
  • Tetrafluoroethylene copolymers
    Patent number: 4837267
    Abstract: Advantageous modification of non-melt processible, fibrillatible TFE copolymers for past extrusion is possible by including small amounts of perfluoro(n-alkyl vinyl ether) in the shell of the copolymer particle.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: June 6, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Satish C. Malhotra
  • Electron beam recording film
    Patent number: 4837135
    Abstract: An electron beam recording film comprising a support bearing, in order,(A) a sputtered layer of indium-ion oxide, and(B) a gelatino silver halide emulsion layer, e.g., silver iodobromide, crosslinked with 2 to 10% by weight based on the weight of gelatin in the emulsion layer of a Cr.sup.+3 -containing compound, e.g., chrome alum, chromic choloride, etc.Optionally other layers can be present in the film, e.g., crosslinked gelatin overcoat, subbing layer on support, titanium oxide layer on the indium-tin oxide layer.
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: June 6, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Clifford E. Milner
  • Aramid staple and pulp prepared by spinning
    Patent number: 4836507
    Abstract: Directly spinning highly oriented staple fibers of para-aramids using a dry-jet wet-spinning process in which the filaments in the gap between the spinneret and the coagulating fluid are attenuated with a liquid jetted symmetrically about the filaments at a rate sufficient to break the filaments intermittently to form staple length fibers that taper along their length from an enlarged head.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: June 6, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Hung H. Yang
  • Method and apparatus for calibrating optical sensors
    Patent number: 4836682
    Abstract: A self calibrating optical sensor is described in which a time varying response signal is provided which is a function of the reflectivity of a surface being detected and the overall response of the photodetector circuit. This response time is stored to establish a reference value to ascertain similar reflective surface are present.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: June 6, 1989
    Assignee: E. I. DuPont De Nemours and Company
    Inventor: Paul C. Keenan, III
  • Etherified and esterified starch derivatives and processes for preparing same
    Patent number: 4837314
    Abstract: Cold water soluble etherified or esterified starch derivatives having a 20 rpm Brookfield viscosity of less than 15,000 cps when tested in the form of a 10 weight percent starch solids aqueous solution at 25.degree. C. and which forms a transparent film when dried from aqueous solution can be prepared by first preparing a non-crosslinked granular etherified or esterified starch derivative, washing said starch derivative to remove salt by-products therefrom and thereafter solubilizing said starch derivative and thinning same to the desired viscosity level. The resulting starch derivative products are particularly suitable for use in wall covering adhesive formulations and as protective colloids in emulsion polymerization processes.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: June 6, 1989
    Assignee: A. E. Staley Manufacturing Company
    Inventor: James E. Eastman
  • Herbicidal indole sulfonamides
    Patent number: 4836846
    Abstract: This invention relates to novel N-(heterocyclicaminocarbonyl) indole sulfonamides which are useful as agricultural chemicals and, in particular, as herbicides.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: June 6, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donna F. Zimmerman
  • Method of making an electrode array
    Patent number: 4837049
    Abstract: A very small electrode array is disclosed, having numerous, small, sharp, conductive protuberances (needles) which penetrate nerves, organs, muscle or other body part for sensing the electrical activity therein or to provide electrical stimulation. The protuberances are carried on a base and there is included electrical conductors connecting the protuberances to terminals, such as bonding pads, for connection to other electrical circuits. Thus, a method of connecting to living tissue is disclosed. Also, a method of manufacture of an electrode array and associated circuitry is disclosed.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: June 6, 1989
    Assignee: Alfred E. Mann Foundation for Scientific Research
    Inventors: Charles L. Byers, Joseph H. Schulman, David I. Whitmoyer
  • Process for porosity control and rehydroxylations of silica bodies
    Patent number: 4837195
    Abstract: The porosity of a porous silica body is increased in a controlled manner by contacting the body with an effective amount of ammonium bifluoride.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: June 6, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Geoffrey B. Cox, Richard W. Stout
  • Phospholipid-like compounds
    Patent number: 4837340
    Abstract: Compounds related to phospholipids and a method for their preparation are sclosed.
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: June 6, 1989
    Assignee: Max-Planck-Gesellschaft Zur Foederung Der Wissenschaften E. V.
    Inventor: Hansjorg Eibl
  • Substituted urido amino and imino acids and esters
    Patent number: H642
    Abstract: Compounds of the formula ##STR1## wherein X is various imino or amino acids or esters are disclosed. These compounds possess angiotensin converting enzyme inhibition activity and depending upon the definition of X also possess enkephalinase inhibition activity.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: June 6, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: David Floyd, Melanie J. Loots