Patents Assigned to E
  • Method for production of methylamines
    Patent number: 4374273
    Abstract: In the catalytic preparation of methylamines from methanol and ammonia using an aluminosilicate catalyst, the mono-, di- and trimethylamine content of the product mixture can be varied from the equilibrium mixture ordinarily produced by using an amorphous aluminosilicate catalyst containing varying amounts of sodium, potassium, lithium, barium or strontium atoms as a result of treating an amorphous aluminosilicate with a corresponding metal hydroxide.
    Type: Grant
    Filed: April 28, 1981
    Date of Patent: February 15, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George E. Heinsohn
  • Battery connector
    Patent number: 4372636
    Abstract: Battery connectors are disclosed for demountably attaching the conductive strands of a battery cable directly to the terminal post of an electric storage battery with the connectors being adapted to exert a pressurizing force which forms and holds a conductive contact between the conductive strands of the battery cable and the terminal post of the electric storage battery.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: February 8, 1983
    Assignees: Terry R. Eberts, Herbert E. Haynes, Jr., Matthew L. Ajeman
    Inventor: Raymond A. Dufresne
  • Fast updating peak detector circuit
    Patent number: 4373141
    Abstract: A peak detector circuit (10) is disclosed wherein an input signal is full-wave rectified by a circuit (14) and the rectified signal is provided simultaneously to peak detect, hold and dump circuits (18), (20). Each of the peak detect, hold and dump circuits is discharged at the start of periodic intervals with a phase offset between the intervals for the two circuits. The peak signals are discharged at essentially the start of the interval followed by rapid charging of the peak signal to the peak amplitude of the rectified input signal. The later portions of each of the intervals of the peak signals produced by the peak detect, hold and dump circuits (18) and (20) are transmitted alternately through a multiplexer circuit (24). The resulting output signal is transmitted through a high impedance buffer amplifier (30) to an output terminal (32) of peak detector circuit (10).
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: February 8, 1983
    Assignee: E-Systems, Inc.
    Inventor: David E. Sanders
  • Herbicidal N-(pyridinylaminocarbonyl)benzenesulfonamides
    Patent number: 4372778
    Abstract: N-(Pyridinylaminocarbonyl)benzenesulfonamides are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: February 8, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Sulfur-modified polypropylene ether glycols, a method for preparing them, and polyurethanes prepared therefrom
    Patent number: 4373084
    Abstract: Polypropylene ether glycol is modified so that it contains 1-25%, by weight of .beta.,.beta.'-dihydroxyalkyl sulfide moieties.These modified polypropylene ether glycols have enhanced resistance to degradation by heat and oxygen.The invention also relates to a method of making the modified PPG's, to their use as stabilizers against the degradation of the polyether chain, and to polyurethanes made with them.
    Type: Grant
    Filed: July 7, 1981
    Date of Patent: February 8, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ivan M. Robinson
  • Process for converting cellulose directly into alkali cellulose
    Patent number: 4373098
    Abstract: A direct process for converting cellulose into alkali cellulose for subsequent production of a filterable viscose by combining particles of cellulose with the largest 1% of the particles having a minimum size Y of less than 600 microns and the bulk density X of the particles being greater than 0.2 g/cm.sup.3 such that the relationship between X and Y is defined by the equation Y-760X.ltoreq.50; and 125 g to 240 g of 20-40% aqueous NaOH for each 100 g of cellulose for at least 4 minutes at 15.degree.-60.degree. C.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: February 8, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gedeon I. Deak
  • Tracking in a distribution system
    Patent number: 4373185
    Abstract: An item identified by a location code is tracked through a transport image in a process controller (48). The transport image is characterized by input data to the specific construction of tracker units (32, 34). Location codes for each item are received by the process controller 48 and tracked by a service routine (152) to set a divert flag or an inject flag (172). Each location code is advanced through sections of the transport image by an INCH routine (200). When the location code matches a pocket identification a divert gate is actuated to remove an item from the distribution system.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: February 8, 1983
    Assignee: E-Systems, Inc.
    Inventors: David A. Mills, Norris G. Turner
  • Antiinflammatory 4,5-diaryl-1H-imidazole-2-methanols
    Patent number: 4372964
    Abstract: Antiinflammatory 4,5-diaryl-1H-imidazole-2-methanols, such as 4,5-bis(4-fluorophenyl)-.alpha.,.alpha.-di(trifluoromethyl)-1H-imidazole-2 -methanol are useful in treatment of arthritis.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: February 8, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Joel G. Whitney
  • Flame-retardant polyamide compositions
    Patent number: 4373049
    Abstract: A flame-retardant polyamide composition is described which is non-brittle. The composition is comprised of a nylon 66 or nylon 66/6, a brominated polystyrene, antimony oxide and a selected non-ionic surfactant.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: February 8, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul N. Richardson
  • Aiming arrangements
    Patent number: 4370914
    Abstract: A gun aiming arrangement uses a visible light or infra-red television camera to feed target area data to an auto-lock-follow (ALF) circuit. The ALF circuit is caused to lock onto a part of the area chosen using a sighting arrangement operated by the gunman. The gun automatically fires when the deviation between the aim of the gun and the target as sensed by the ALF circuit has a predetermined characteristic.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: February 1, 1983
    Assignee: E M I Limited
    Inventor: Roger Voles
  • Heat-resistant rigid polymers from difunctional 9,10-dihydro-9,10-ethanoanthracenes
    Patent number: 4371690
    Abstract: High molecular weight processible polymers derived from 2,6- and 2,7-diacids, diols and diamines of 9,10-dihydro-9,10-ethanoanthracenes and various complementary comonomers are prepared. These are converted into rigid, thermally-stable anthraceno polyesters and polyamides by thermal removal of the 9,10-ethano bridge.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: February 1, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Burton C. Anderson, August H. Frazer
  • Antiinflammatory and/or analgesic 3,4-dihydro-(or 1,4-dihydro)-4-aryl-2-((substituted)thio)-(1)-benzopyrano(3,4-d)imidazol es and their corresponding sulfoxides and sulfones
    Patent number: 4371541
    Abstract: 3,4-Dihydro(or 1,4-dihydro)-4-aryl-2-[(substituted)thio]-[1]benzopyrano[3,4-d]imidazoles and their corresponding sulfoxides and sulfones, such as 3,4-dihydro(or 1,4-dihydro)-4-phenyl-2-[(1,1,2,2-tetrafluoroethyl)sulfonyl]-[1]benzopyran o[3,4-d]imidazole, are useful in the treatment of inflammation and/or pain.
    Type: Grant
    Filed: January 7, 1982
    Date of Patent: February 1, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Michael Finizio
  • Crater resistant acrylic enamel
    Patent number: 4371657
    Abstract: A crater resistant enamel coating composition used for the exterior of trucks and automobiles in which the binder 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.After the composition is applied and baked by conventional techniques, a finish is formed that has an excellent appearance.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: February 1, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David C. Chang
  • Sulfur-modified polytetramethylene ether glycols, a method for preparing them, and polyurethanes prepared therefrom
    Patent number: 4371687
    Abstract: Polytetramethylene ether glycol is modified so that it contains 1-25%, by weight of .beta.,.beta.'-dihydroxyalkyl sulfide moieties.These modified polytetramethylene ether glycols have enhanced resistance to degradation by heat and oxygen.The invention also relates to a method of making the modified PTMEG's, to their use as stabilizers against the degradation of the polyether chain, and to polyurethanes made with them.
    Type: Grant
    Filed: July 7, 1981
    Date of Patent: February 1, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ivan M. Robinson
  • Flexible screen-printable conductor composition
    Patent number: 4371459
    Abstract: Screen-printable conductor composition comprising (a) a conductive phase containing silver and base metal powders dispersed in a solution of (b) a multipolymer prepared by copolymerization of vinyl acetate, vinyl chloride, and an ethylenically unsaturated dicarboxylic acid and a linear aromatic polyester resin dissolved in (c) volatile nonhydrocarbon solvent.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: February 1, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Nicholas Nazarenko
  • Photopolymerizable compositions containing N-hydroxyamide and N-hydroxyimide sulfonates
    Patent number: 4371605
    Abstract: A photopolymerizable composition and a photoimaging element. The photopolymerizable composition is a cationically polymerizable organic composition and a photoinitiator which is a N-hydroxyamide, or N-hydroxyimide, sulfonate.
    Type: Grant
    Filed: December 9, 1980
    Date of Patent: February 1, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Carl A. Renner
  • Method for forming an isolated lectin-immunological conjugate
    Patent number: 4371515
    Abstract: A lectin is covalently bonded to an immunological conjugate such as an antibody-antigen or its equivalent. Then, the lectin-conjugate is isolated from the reaction product mixture by one of a number of alternative techniques involving one or more of the following types of reaction; (1) reversible reaction of the lectin with an insolubilized sugar to isolate lectin from the remainder of the mixture, (2) reaction of one immunological component (e.g., antibody) bonded to the lectin with an insolubilized corresponding component (e.g., antigen) to separate the antibody components from the remainder of the reaction mixture, and (3) filtration of the reaction components to separate on the basis of product molecular weight, size and/or shape of the components.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: February 1, 1983
    Assignee: E-Y Laboratories, Inc.
    Inventor: Albert E. Chu
  • Phosphinylalkanoyl substituted 4,5-dihydropyrazole-5-carboxylic acid derivatives and hypotensive method and composition
    Patent number: 4371526
    Abstract: Compounds of the formula ##STR1## are disclosed. These compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: February 1, 1983
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: George C. Rovnyak
  • Thermoplastic elastomeric polyetheresterimides
    Patent number: 4371693
    Abstract: Thermoplastic elastomeric polyetheresterimides comprising a multiplicity of long chain ester imide units represented by the formula ##STR1## and short chain esterimide units represented by the formula ##STR2## where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide) glycol having a number average molecular weight of about 400-4000; D is a divalent radical remaining after removal of hydroxyl groups from a diol having a molecular weight less than about 300, and Q is a divalent radical remaining after removal of an amino group and a carboxyl group from a aliphatic primary amino acid having a molecular weight of less than 250; with the proviso that from about 2 to 10 of said short chain esterimide units are present for each of said long chain esterimide units.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: February 1, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James R. Wolfe, Jr.
  • Seedling rose named Hilset
    Patent number: PP4983
    Abstract: A pink floribunda rose intended for greenhouse culture and the production of cut flowers, this new plant being characterized by a free and abundant production of medium large blooms having excellent keeping tendencies and a moderately spicy fragrance in greenhouse. This new rose exhibits a clear light pink color throughout all seasons.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: February 15, 1983
    Assignee: E. G. Hill Co., Inc.
    Inventor: Robert G. Jelly