Patents Assigned to E
  • Patent number: 4435206
    Abstract: N-(heterocyclicaminocarbonyl)pyridinesulfonamides are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: March 6, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Patent number: 4435205
    Abstract: N-(Heterocycliccarbamoyl)arylsulfonamides, such as N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-hydroxybenzenesulfonamide , methanesulfonate are useful for plant growth retardation, brush control and weed control in crops.
    Type: Grant
    Filed: April 15, 1982
    Date of Patent: March 6, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James J. Reap
  • Patent number: 4435165
    Abstract: A flotation device for supporting a person in water comprises an elongate tubular frame including at least one body-support member, and front and rear float assemblies mounted on the frame. The rear float assembly comprises two float elements spaced apart transversely of the elongate frame, and the float elements are so disposed that, when the device is floating in the water, the body-support member is below water level, so that a person using the device is partly in the water.
    Type: Grant
    Filed: July 17, 1980
    Date of Patent: March 6, 1984
    Assignee: J. E. Johnson & Sons (Engineers) Limited
    Inventor: James E. Johnson
  • Patent number: 4435438
    Abstract: Vegetable proteins may be converted into isolates which are useful for preparing imitation cheese products. These unique isolates are characterized in general as: having an NSI of at least 90, having not been subjected to enzymatic or chemical hydrolysis, forming an insoluble gel when reconstituted in water at a 15% by weight protein isolate concentration and heated to 85.degree. C. for 30 minutes, and yielding a melt value of at least 15 cm.sup.2. The isolates are prepared under conditions which precondition the protein molecules so that they may be converted, upon heat treatment, into protein aggregates which simulate the hydrocolloidal attributes of caseinate. The heat treatment causes restructuring of the proteinaceous molecules into large molecular weight aggregates.
    Type: Grant
    Filed: June 16, 1982
    Date of Patent: March 6, 1984
    Assignee: A. E. Staley Manufacturing Company
    Inventors: William F. Lehnhardt, Charles E. Streaty, Jr., Walter C. Yackel, Jr., Ho S. Yang, Daniel K. Tang
  • Patent number: 4435326
    Abstract: Androstenes having the formula ##STR1## wherein R.sub.1 hydrogen and R.sub.2 is alkyl, cycloalkyl, aryl, arylalkyl, alkylthioalkyl, alkoxyalkyl, alkanoyloxyalkyl, aroyloxyalkyl, alkoxycarobnylalkyl, carboxyalkyl, or arylalkyl, or R.sub.1 is alkanoyl or aroyl and R.sub.2 is alkyl;R.sub.3 is hydrogen, hydroxy, alkoxy, aryloxy, oxo, methylene, alkylthio, arylthio, alkanoyl, alkanoyloxy, or halogen;R.sub.4 is carbonyl, .beta.-hydroxymethylene or .beta.-acetyloxymethylene;R.sub.5 is hydrogen or halogen; and R.sub.6 is hydrogen, methyl, hydroxy, alkanoyl or halogen are useful intermediates for the preparation of steroids having antiinflammatory activity.
    Type: Grant
    Filed: September 9, 1982
    Date of Patent: March 6, 1984
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Ravi K. Varma
  • Patent number: 4434539
    Abstract: A heat exchanger including a first piece of heat conductive tubing wound in helical configuration defining a plurality of first helical flights having an outboard portion thereon and a second piece of heat conductive tubing wound in a helical configuration defining a plurality of second helical flights having an inboard portion thereon where the first and second helical flights are arranged so that the outboard portions of the first helical flights are in heat conducting contact with the inboard portions of the second helical flights and where the first and second helical flights have been formed by forcing the outboard portions of the first helical flights and the inboard portions of the second helical flights together so that the portions are forced into heat conducting contact with each other. The disclosure also describes the method of manufacturing the heat exchanger and the method of operating the heat exchanger.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: March 6, 1984
    Assignee: E-Tech, Inc.
    Inventors: David M. Sanborn, Andrew L. Blackshaw
  • Patent number: 4435037
    Abstract: An optical connector for coupling a semiconductor light source to an optical fiber transmission line. A light source such as a light emitting diode is mounted on a movable post within a housing in juxtaposition to the end of an optical fiber centered within a channel in a connector housing. The optical fiber is held stationary whereas the post supporting the light emitting diode is moved by a probe inserted through multiple aligning ports until the diode is properly positioned for optimum light coupling into the fiber.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: March 6, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward A. Abramson, Peter K. Townsend
  • Patent number: 4435383
    Abstract: This invention relates to a one-phase, solid controlled release pesticidal composition consisting essentially of a pesticide in homogeneous combination with a cross-linked copolymer prepared from hydrophobic monomers, selected from styrene and .alpha.-methyl styrene, and carboxylic acid-containing monomers.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: March 6, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert D. Wysong
  • Patent number: 4435568
    Abstract: The process of thiol methylation of butylthion using methyl bromide to produce metribuzin has been significantly improved by the development of a reaction temperature profile, the recycle of methylation process reaction supernatant, and new conditions for the regeneration of methyl bromide from used methylation process reaction supernatant.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: March 6, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kenneth L. Barbour, William L. Geigle, Frank R. Haglid, deceased
  • Patent number: 4434273
    Abstract: Perfluoroketovinyl ether of the formula (as in claim 1) wherein n is an integer 1 to 4; copolymers of such ether and a fluorinated monomer, such as tetrafluoroethylene; ion-exchange resins of such copolymers; and ion-exchange membranes of such resins.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ronald E. Uschold
  • Patent number: 4434261
    Abstract: Extrudable, self-supporting, nonblocking hot melt adhesive sheet is obtained by blending about 10-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; 2-30% by weight of a plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers, polyether esters and combinations thereof; about 20-80% by weight of filler; from 0 to about 10% by weight of at least one additive, such as organic acids, organic acid derivatives and surface active agents.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward G. Brugel, Walter Yllo
  • Patent number: 4434316
    Abstract: Process for separating alkenes, e.g., butene, from alkadienes, e.g., butadiene by preferentially hydrocyanating the diene and thereafter recovering the unreacted alkenes.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Willie J. Barnette
  • Patent number: 4434253
    Abstract: The subject invention is a foamable composition based on a blend of a carbon monoxide- or sulfur dioxide-containing ethylene copolymer and a vinyl or vinylidene halide polymer, and the closed-cell foamed article produced therefrom.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: February 28, 1984
    Assignees: E. I. Du Pont de Nemours and Company, Bata Shoe Company
    Inventor: John Rys-Sikora
  • Patent number: 4434258
    Abstract: Filled thermoplastic compositions having enhanced elongation and useful, e.g., as sound-deadening sheeting for automotive carpet, are obtained by blending about 0-50% by weight of an ethylene interpolymer, such as ethylene/vinyl ester, ethylene/unsaturated mono- or dicarboxylic acids or esters of said unsaturated acids, etc.; 0-20% by weight of a plasticizer selected from the group consisting of processing oils, epoxidized oils, polyesters, polyethers, polyether esters and combinations thereof; about 40-90% by weight of filler; from about 0.05 to about 5.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frederick G. Schumacher, Walter Yllo
  • Patent number: 4433527
    Abstract: A heat sealing and cut-off device for making packages with shrink film wrapping. The device includes a rotating anvil and a counter-rotating knife and clamping bars. The rotations are synchronous and independently mounted clamping bars hold the film for heat sealing and severing without scuffing.
    Type: Grant
    Filed: August 19, 1981
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Harold E. Ramsey, Edward E. Fischer
  • Patent number: 4434236
    Abstract: A method for the rapid determination of analyte in a sample is provided. The sample is contacted with a solid phase having immobilized thereon an analyte-analogue to which there is displaceably bound a labeled anti-analyte antibody. Because the antibody has greater affinity for the analyte than the analyte-analogue, the labeled antibody is displaced from the solid phase. The complex is separated from the solid phase, and the amount of complex is measured. The measured amount is related to the amount of analyte initially present in the sample.
    Type: Grant
    Filed: October 20, 1982
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: J. William Freytag
  • Patent number: 4434096
    Abstract: There is provided a group of tripeptide thiol ester substrates of the following generalized structure:B--AA.sub.3 --AA.sub.2 --AA.sub.1 --S--R.These substrates yield, upon enzymatic cleavage of the thiol ester bond, thiols which can be quantified accurately through certain coupling reactions. The substrates are useful for the quantitative determination of proteolytic enzymes in biological fluids.
    Type: Grant
    Filed: June 30, 1981
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Patrick L. Coleman, John A. Wehrly
  • Patent number: 4433814
    Abstract: An expansible shaft in which an axially-movable cam forces a core engager radially outward into engagement with a surrounding core. A cam follower attached to the core engager slidingly engages a cam surface of the cam, a recessed slot is parallel to the cam surface, and one end of a cross-bore in the cam follower overlies and follows the slot as the cam follower slides along the cam surface. A second bore perpendicularly intersects the cross-bore. A first member is mounted in and forms a slip-fit with the cross-bore, a second member is mounted in the second bore, and the length of the first member is such that a portion of it projects into the slot when the second member is within the bore intersection, but the entire first member fits within the cross-bore when the second member is withdrawn from the bore intersection.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: February 28, 1984
    Assignee: Double E Company Inc.
    Inventors: Virgil M. Pontes, Lawrence C. Young
  • Patent number: 4434084
    Abstract: Cathodic coating for tantalum capacitors containing (a) a mixture of finely divided copper and tin or tin alloy particles dispersed in a solution of (b) organic acid flux, and (c) organic amine in (d) inert organic medium.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William T. Hicks, William C. Seidel
  • Patent number: 4433509
    Abstract: A regulator for closures, and especially vehicle mounted windows, having a rigid track, one end of which is formed in a spiral configuration and which contains a polymeric power transmission tape, a rotatably mounted power transmission arm and a power transmission block slidably connected to the power transmission arm and connected to the end of the polymeric tape to move the tape within the spiral formed portion of the track, the other end of the tape being attached to the closure.
    Type: Grant
    Filed: December 2, 1982
    Date of Patent: February 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Earl E. Seppala