Patents Assigned to E
  • Patent number: 4256117
    Abstract: A digital stop watch is provided in combination with a cardiac monitor wherein both the stop watch means and the cardiac monitor utilize a common display means and wherein the combination is adapted to be worn around the wrist. The stop watch is of conventional construction, comprising a clock which drives a counter and multiplexing means disposed between the counter and display means for selectively displaying the count in the counter. The cardiac monitor comprises a transducer worn on the body and adapted to produce an electrical pulse in response to each heart beat of the wearer. The transducer output is fed into a rate logic circuit which generates a heart beat rate signal representative of the pulse rate of the wearer and the rate signal is stored in a temporary memory which is continuously and periodically updated.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: March 17, 1981
    Assignee: Jacob E. Perica
    Inventors: Jacob E. Perica, Wayne F. Poyer, Neale F. Koenig
  • Patent number: 4256509
    Abstract: A method of modifying the viscosity characteristics of a starchy flour by physical treatment, including heating in alcohol in a confined zone. The resulting starchy flour exhibits thin-thick viscosity characteristics when heated, and provides added viscosity in acid systems without breaking down. It has particular application to baby food recipes to impart desired texture and mouthfeel. Oat flour is the presently preferred starchy flour to be treated for use in baby foods.In one embodiment, a starchy flour is slurried in an aqueous organic liquid, preferably ethanol, and is then subjected to heat and pressure for a predetermined time to modify the physical properties of the flour. The specific combination of pressure, temperature, and heating time determine the properties of the treated flour.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: March 17, 1981
    Assignee: A. E. Staley Manufacturing Company
    Inventors: John V. Tuschhoff, James E. Eastman, Schanefelt Robert V.
  • Patent number: 4256588
    Abstract: A process for the separation of B and T lymphocytes comprising passing a suspension of a mixture over a bed of synthetic polymer granules whereby the B leukocytes adhere to the granules and the T lymphocytes pass through the bed.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: March 17, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Harvey H. Hoehn, Stephen T. Toy
  • Patent number: 4255894
    Abstract: A doll and an eye assembly, intended for use in a doll, wherein the assembly comprises a combined representational eyeball and eyelid movable mounted relative to a carrier or retainer, and weighted, in such a way as to tend to occupy a first positional relationship with the carrier or retainer (such as "open") in one attitude of the assembly to the horizontal but to occupy a second positional relationship with said carrier or retainer (such as "closed") in a different attitude of the assembly to the horizontal. The assembly also includes a fluid pressure actuable control operable to displace the combined eyeball and eyelid from said first "open" positional relationship to said second "closed" positional relationship.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: March 17, 1981
    Assignees: Adolph E. Goldfarb, Elisabeth Benkoe
    Inventors: Adolph E. Goldfarb, Erwin Benkoe, deceased, Elonne Dantzer
  • Patent number: 4256275
    Abstract: A homing system is provided for guiding a missile (10) towards a metal target. The metal target is illuminated by a radar unit (12) with a transmitted RADAR signal of predetermined frequency. The target reflects the RADAR signal and produces HARMONIC signals having frequencies that are harmonic with the predetermined frequency. An antenna (14) is mounted in the missile for receiving signals, including the HARMONIC signals produced by the target. A wave guide bandpass filter (18) receives signals from the antenna and passes selected HARMONIC signals to a filter output. A detector (34) is responsive to selected HARMONIC signals passed by the filter (18) to produce STRENGTH signals proportional to the signal strength of the selected HARMONIC signals. The STRENGTH signals are received by an error circuit (48) that produces ERROR signals indicating the direction of the target relative to the missile (10).
    Type: Grant
    Filed: November 1, 1978
    Date of Patent: March 17, 1981
    Assignee: E-Systems, Inc.
    Inventors: Edward A. Flick, Timothy R. Holmes, Myles A. Larson
  • Patent number: 4255298
    Abstract: A graft copolymer having a polymeric backbone with pendent hydroxyl groups; wherein the hydrogen atom of at least the one the hydroxyl groups is replaced by the formula ##STR1## where R is an aliphatic group, a cycloaliphatic group or an aromatic group; R.sup.1 is an alkylene group having 2-6 carbon atoms; R.sup.2 is a polymer segment of a vinyl addition polymer, such as butyl acrylate/hydroxyethyl acrylate; coating compositions of this copolymer can be cross-linked with conventional cross-linking agents such as an alkylated melamine formaldehyde resin or an organic polyisocyanate and coating compositions useful for flexible elastomeric substrates can be prepared from this copolymer.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John A. Simms
  • Patent number: 4255240
    Abstract: Ion-exchange films, membranes and laminar structures incorporating a layer of a blend of a first fluorinated polymer which contains sulfonyl groups in ionizable form and a second fluorinated polymer which contains carboxylic acid functional groups, when used to separate the anode and cathode compartments of an electrolysis cell, permit operation at high current efficiency and low power consumption. They can be made by synthesis of precursor polymers in melt-fabricable form, blending, fabrication of the film, membrane or laminar structure, and hydrolysis of the functional groups to ionizable form, such as the free acid form or alkali metal salt thereof.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles J. Molnar, Edward H. Price, Paul R. Resnick
  • Patent number: 4255013
    Abstract: A variable power telescopic gunsight is shown with an automatic correction factor for elevation and/or drift. As the magnification is adjusted by a rotatable means on the gunsight which typically moves a pair of lens in response to camming action, a third longitudinal movement is provided in the gunsight in response to the rotation with appropriate camming surfaces to compensate for normal drop of the bullet by providing elevation of line of sight of the scope up or down. The same rotation action used to change the magnification can provide another longitudinal movement of another camming surface to compensate for drift by changing the line of sight of the scope to the right or left.
    Type: Grant
    Filed: May 17, 1979
    Date of Patent: March 10, 1981
    Assignee: John E. McNair
    Inventor: Ralph G. Allen
  • Patent number: 4255484
    Abstract: A fabric-conditioning composition incorporated in an article used to condition fabrics in a laundry dryer. The fabric-conditioning composition carried on a sheet-like flexible substrate includes special fatty glyceride spreading agents to enhance uniform transfer of the conditioning agents to fabrics when tumbled therewith in a clothes dryer. The article is capable of effective conditioning fabrics without staining because of the spreading agents which aid in the uniform release of fabric-conditioners from the substrate at dryer operating temperatures, and aids in uniformly spreading the fabric-conditioners over the clothes being treated. The presently preferred fatty glyceride spreading agents comprise ethoxylated, propoxylated glycerol and mono- and diesters of hydrogenated tallow acids. These spreading agents are preferably used with a cationic quaternary ammonium fabric-conditioner, more particularly ditallow and dimethyl ammonium sulfate.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: March 10, 1981
    Assignee: A. E. Staley Manufacturing Company
    Inventor: Frank H. Stevens
  • Patent number: 4255343
    Abstract: Process for preparing 2-t-alkylanthracene, which process comprises contacting and reacting, with good mixing, at a temperature of at least 110.degree. C., anthracene and a branched-chain alkylating agent, the alkylating moiety of which contains at least four carbon atoms, in the presence of a catalyst selected from hydrocarbonsulfonic acids which are free of nonaromatic unsaturation, organic carboxylic acids having a K.sub.a of 0.6 to 0.001, acid zeolites, amorphous silica-aluminas, and polymeric arenesulfonic acid resins, to give a product mixture of which the major constituent is 2-t-alkylanthracene.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Lawrence W. Gosser
  • Patent number: 4255353
    Abstract: Sulfinyl-bis carbamoyl fluorides, such as N,N'-sulfinylbis[N-methylcarbamoyl fluoride], useful as intermediates in the preparation of insecticides.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Anthony D. Wolf
  • Patent number: 4255308
    Abstract: An aqueous dispersion lacquer composition of a binder in an aqueous medium; the binder is comprised of(1) a dispersed Polymer A of methyl methacrylate that can contain small amounts of adhesion promoting monomers such as diethyl amino ethyl methacrylate and other monomers that lower the glass transition temperature of the poolmer such as butyl methacrylate or butyl acrylate;(2) a dispersant Polymer B of methyl methacrylate, optionally, styrene, an alkyl acrylate or an alkyl methacrylate and an ethylenically unsaturated carboxylic acid; and(3) a graft copolymer of the dispersed Polymer A and the dispersant Polymer B; andThe composition contains sufficient base such as amine or ammonium hydroxide to provide a pH of about 7-9 and usually contains conventional plasticizers, pigments and other additives as are used in aqueous coating compositions.The composition is used an an exterior finish for automobile and truck bodies.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Wallace R. Brasen
  • Patent number: 4254920
    Abstract: An expansible shaft including a hollow axially-extending body and operatively coupled core engaging and retracting sections within the body. The core engaging section includes a core engager movable relative to the body in a direction generally perpendicular to the axis of the body and biased towards a core engagement position in which it projects beyond the wall of the body; and the retracting section includes an actuator arranged to overcome the bias and move the core engager radially inwardly from its core engagement position.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: March 10, 1981
    Assignee: Double E Company, Inc.
    Inventor: Bruce E. Peterson
  • Patent number: 4255291
    Abstract: Air-fireable thick film conductor compositions are provided. The conductor composition is a paste containing (1) an inorganic powder made from an intermetallic phase copper-aluminum powder, aluminum powder and a glass frit and (2) an inert organic liquid vehicle.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Christopher R. S. Needes, Joseph R. Rellick
  • Patent number: 4254977
    Abstract: A seal of the type resembling a padlock which comprises a plastic housing having a pair of apertures in the top surface for receiving the ends of a wire shackle. To provide evidence of tampering, by attempts to work a shackle end out of an aperture with a pair of pliers or the like, upwardly extending protuberance are provided on the upper surface of the body, which are mashed down by the tool being used in an attempt to open the seal, thereby giving evidence of tampering. When certain types of colored plastic are used for the seal body, the deformation of the protuberance causes them to turn white, giving further evidence of tampering.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: March 10, 1981
    Assignee: E. J. Brooks Company
    Inventor: Richard S. Guiler
  • Patent number: 4255263
    Abstract: The stack assembly (FIG. 9) is formed by identical plates (P) of rectangular shape alternating with semi-permeable membranes (12). A face of each plate is formed with a plurality of transversely extending flow-conveying beds, each of which has a through-aperture at each of its opposite ends. The membrane is affixed to the other face of the plate by means of plug members to provide a modular unit, some of the plug members in the stack assembly being "open" (13a) and the other being "blind" (13b). Hydraulic connections in "series", in "parallel" and in "series/parallel" are obtainable by properly distributing the open and blind plug members.
    Type: Grant
    Filed: July 18, 1979
    Date of Patent: March 10, 1981
    Assignee: Costruzioni e Impianti S.p.A. Fiat Engineering
    Inventors: Giuseppe Galimi, Mario Montalto, Luciano Pluchino
  • Patent number: 4255390
    Abstract: The present invention relates to a zone refiner and the process of operating same wherein the freezing interface between the molten zone and the solid zone is corrugated. The use of such a corrugated interface enables one to pass the interface more rapidly along the length of the refiner for a given refining efficiency.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Philip J. Rennolds
  • Patent number: 4255338
    Abstract: A process for the hydrogenation of butadienepolyperoxide in a suitable solvent, e.g., tetrahydrofuran, at temperatures of 75.degree.-110.degree. C. and pressure above 2000 psia by contacting the butadienepolyperoxide and hydrogen in the presence of metallic silver. The process produces 1-butene-3,4-diol and 2-butene-1,4-diol.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William W. Prichard
  • Patent number: 4255267
    Abstract: A leukapheresis process is disclosed in which an expandable bed of synthetic polymeric packing having a diameter of from 90 .mu.m to 2000 .mu.m and preferably 200 .mu.m to 400 .mu.m is used to adhere granulocytes from blood. The granulocytes are harvested from the packing by expanding the bed and washing with a physiologically acceptable solution.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Harvey H. Hoehn, John R. Wells
  • Patent number: 4255365
    Abstract: A process for promoting uniform thickness in cast webs of thermoplastic material comprising use of variable air forces selectively directed toward a cast web with pinned edges along the line of initial proximity with a quenching surface. Especially useful to mitigate thinning adjacent to the pinned edges.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: March 10, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David E. Heyer