Patents Assigned to E
  • Alkyl-.omega.-fluoroformyl ester and process
    Patent number: 4390720
    Abstract: Process for making alkyl-.omega.-fluoroformyl esters of the formula ##STR1## wherein R is CH.sub.3 or C.sub.2 H.sub.5 and n is 0 or an integer from 1 to 3, by reacting the methyl or ethyl ester of trifluoropyruvic acid with hexafluoropropene oxide in the presence of fluoride ion catalyst, in an aprotic liquid medium; and the ester wherein n=0.
    Type: Grant
    Filed: October 14, 1981
    Date of Patent: June 28, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Paul R. Resnick
  • Imido, amido and amino derivatives of mercaptoacyl prolines and pipecolic acids
    Patent number: 4390695
    Abstract: Imido, amido and amino derivatives of mercaptoacyl prolines and pipecolic acids are useful for the treatment of hypertension.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: June 28, 1983
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: John Krapcho, Peter C. Wade
  • Stabilized ethylene/tetrafluoroethylene copolymers
    Patent number: 4390655
    Abstract: Presence of cuprous iodide or cuprous chloride provides protection to ethylene/tetrafluoroethylene polymers against thermal degradation.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: June 28, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventor: Jerrel C. Anderson
  • Method and apparatus for remotely detecting gases in the atmosphere
    Patent number: 4390785
    Abstract: Presence and location of infrared radiation-absorbing or emitting gases in the atmosphere can be ascertained by means of an infrared imaging-analyzing means which views a given scene and receives infrared radiation therefrom. Analytic and reference beams are produced, the latter having reduced sensitivity to the gas of interest, and are converted to electric signals, which are processed in real time to provide a signal corresponding to their ratio. This ratio signal is further processed to generate an image, which can be displayed and viewed. This technique is particularly suitable for surveying large areas for seepage of methane or other hydrocarbon gases from underground gas and/or oil deposits.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: June 28, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventors: Mark E. Faulhaber, James M. Prober
  • Stabilization of pleuromutilin derivatives against oxidation by sodium hypochlorite in aqueous solution
    Patent number: 4390558
    Abstract: A composition and method which provides a compound of the formula I: ##STR1## wherein either R.sub.1 is ethyl or vinyl. n is an integer from 2 to 5 and each of R.sub.2 and R.sub.3 is alkyl of 1 to 10 carbon atoms.Also provided is a hypochlorite scavenger in solution with the formula I compound which stabilizes the compound against oxidation by sodium hypochlorite.A preferred solution contains the compound of formula I wherein R.sub.1 is vinyl, R.sub.2 and R.sub.3 are ethyl as a salt of hydrogen fumarate i.e. tiamulin hydrogen fumarate. The solution is added to drinking water which is fed to farm animals as treatment for mycoplasma infection.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: June 28, 1983
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Frank Ridgway, Richard D. G. Woolfenden
  • Shelving system
    Patent number: 4390103
    Abstract: A shelving system (10) includes diagonal braces (46) which extend between posts (12) and cross members (36) which transversely interconnect the posts (12). The lower end portion (50) of brace (46) is formed in the shape of a hook to extend through a slot (18) and engage with post face wall (20). Brace (46) also includes an elongate, planer intermediate portion (48) and an upper end portion (58) extending transversely to intermediate portion (48) to extend through a diagonal slot (56) formed in cross member (36). Brace upper end portion (54) includes a transverse tab (60) which can be bent over once end portion (54) is inserted through slot (56) to thereby securely lock brace (46) engaged with cross member (36).
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: June 28, 1983
    Assignee: E-Z-Rect Metal Products Ltd.
    Inventor: Wallace T. Husband
  • Proteinaceous foaming compositions and method for preparing foamed proteinaceous products
    Patent number: 4390450
    Abstract: It has been discovered that the combination of certain polyvalent metal ions with certain proteinaceous foaming agents will significantly enhance the efficacy of proteinaceous foaming compositions. The present invention affords the means for achieving significantly improved protein foam from vegetable protein hydrolyzates which normally fail to possess the foaming efficacy of conventional proteinaceous foam agents such as egg albumen and caseinates. The improved foamed products may be obtained by employing a combination of polyvalent ions such as calcium and zinc with enzymatically hydrolyzed soy protein whipping agents which are characterized as being soluble throughout the pH 4 to 7 range. The proteinaceous foaming composition may be utilized for a variety of industrial and food applications. The present foaming compositions are particularly useful in providing coated paper products.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: June 28, 1983
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Paul W. Gibson, Frank T. Orthoefer
  • Process for improving the transmission characteristics of optical fibers drawn from preforms made by the MCVD technique
    Patent number: 4389230
    Abstract: In order to improve the transmission characteristics of optical fibers drawn from the preforms manufactured by vapor deposition of silica on an inner wall surface of a supporting tube of glass, the tube is subjected to a two-stage heat treatment with deuterium whereby OH.sup.- groups at least on the inner tube surface are isotopically replaced by OD.sup.- groups. This pretreatment can be carried out in the same apparatus which is subsequently used for producing the preform.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: June 21, 1983
    Assignee: Cselt Centro Studi E Laboratori Telecomunicazioni S.P.A.
    Inventors: Eros Modone, Giacomo Roba
  • Centrifugal pump
    Patent number: 4389159
    Abstract: A centrifugal pump with a housing which has circular shape in the direction of the circumference and which has on its circumference an exit tube commencing at an exit port tangentially with reference to the flow, where the length of the exit port in the direction of the housing's circumference is about .pi./4R and where the outer wall of the exit tube constitutes a diverging bulge on outward transition from the circumference. The outer wall of the exit tube, projecting under an angle about 45 degrees from the circumference of the housing, consists of an arc having the center of its radius (r) approximately at the juncture of the opposite wall of the exit tube and the housing circumference.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: June 21, 1983
    Assignee: Oy E. Sarlin AB
    Inventor: Hannu Sarvanne
  • Device for coupling and releasing a daisy wheel type member
    Patent number: 4389130
    Abstract: A typewriter (not illustrated) using a daisy wheel as the type carrying member and having a unit which drives the daisy wheel element to rotate about its axis and a device for coupling the daisy wheel element onto the drive unit.The coupling device substantially comprises a pin which engages a hole in the daisy wheel element; first resilient means carried by the unit and operable to transmit to the daisy wheel element an axial thrust in a first direction; second resilient means operable to transmit to the daisy wheel element an axial thrust in a direction opposite the thrust generated by the first mentioned means; and manual control means which act on the said second resilient means in such a way as to compensate, if actuated, the thrust generated by such second resilient means.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: June 21, 1983
    Assignee: Remington Ind. E Com. De Sistemas Para Escritoria S.A.
    Inventor: Nicolo Giolitti
  • Polyvinyl alcohol dust suppression by admixing polyglycol
    Patent number: 4389506
    Abstract: A process for the preparation of a substantially dust-free PVA powder comprising contacting the PVA with about 0.5 percent to 4.0 percent polyglycol, preferably about 0.5 percent to 2.0 percent polyglycol, based on the weight of the PVA, and the product therefrom.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: June 21, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas Hassall, Jr.
  • Clear air-dry acrylic lacquer coating composition
    Patent number: 4389502
    Abstract: An air-dry acrylic lacquer capable of forming a low-color, non-yellowing finish with excellent adhesion to either lacquer or enamel-coated substrates is provided. The lacquer is composed primarily of poly(methyl methacrylate), a methyl methacrylate/ethyl acrylate/t-butylaminoethyl methacrylate terpolymer, cellulose acetate butyrate, and a polyester plasticizer. Ordinarily, the lacquer is nonpigmented and provides a clear, glossy and durable film useful as the clear coat of a color coat/clear coat automotive finish.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: June 21, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Grant C. Fry, Walter C. Meyer
  • Method and composition for determining human chorionic somatotropin
    Patent number: 4388295
    Abstract: A method and an implementation are disclosed for measuring the contents of a certain component (e.g. a hormone) in a biological fluid. The basic principle of the method is that a complex is formed starting from the antagonist of the component sought for with the product of conjugation of the latter with a tracer (e.g. a radioisotope), said complex is introduced in the biological fluid to be tested and the quantity of the tracer which has been set free is measured with a measuring or dosing technique which is appropriate for the tracer which has been selected.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: June 14, 1983
    Assignee: Istituto Sieroterapico e Vaccinogeno Toscano "Sclavo" S.p.A.
    Inventors: Francesco Cocola, Paolo Tarli, Paolo Neri
  • Durable antisoiling coatings for textile filaments
    Patent number: 4388372
    Abstract: A durable antisoiling coating composition for textile filaments comprises a perfluoroalkyl ester of a citric acid urethane and fluorinated alcohols in combination with a modified epoxy resin which is the reaction product of a carboxyl-functional vinyl polymer, an epoxy resin and a tertiary amine. The composition can be applied as an aqueous dispersion, including a non-ionic textile lubricant based on poly(ethylene glycol).
    Type: Grant
    Filed: March 10, 1982
    Date of Patent: June 14, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Nitin J. Champaneria, Lee R. Harper, Edward A. Hosegood
  • Elastomeric seal ring with self-lubricating wear-reducing feature
    Patent number: 4387902
    Abstract: An annular elastomeric seal-ring construction having a body adapted for stabilized retention in a circumferential seal-ring groove in one of two relatively rotatable members and for circumferentially continuous resilient contact with an opposed wiping surface of the other member. The resilient wiping contact is established via an integral rib of width less than body width, wherein the locus of the rib undulates axially as a function of azimuth about the axis of the ring body.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: June 14, 1983
    Assignee: C. E. Conover & Co., Inc.
    Inventor: Charles E. Conover
  • Composition for washing fabric
    Patent number: 4388077
    Abstract: A composition is provided for washing fabric, particularly denim, prior to sale. The composition includes an amphoteric surfactant, a builder which ensures that the surfactant in a washing solution, is initially in an anionic state, and a pH builder which causes the pH of the washing solution to decrease to thereby change the amphoteric surfactant to its cationic state. In its anionic state the surfactant acts as a wetting agent to encourage such actions as pre-shrinking and dye-bleeding by the washing solution. In its cationic state the surfactant can be adsorbed onto the fabric so as to exhibit fabric softening and anti-static effects. A lubricant is preferably included in the composition to reduce uneven dye-bleeding caused by fabric to fabric abrasion in the wash cycle.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: June 14, 1983
    Assignee: W. E. Greer Ltd.
    Inventor: Jules B. Ruck
  • Film diversion apparatus
    Patent number: 4387841
    Abstract: An apparatus for diverting a wide, continuously advancing film. The apparatus includes a first jet device for forwarding a broken film from the tenter oven to a second jet device which, in turn, routes the film to waste with no reduction in line speed.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: June 14, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William E. Hawkins
  • Method of manufacturing ostomy pouches
    Patent number: 4388135
    Abstract: Ostomy pouches are manufactured by partially contour welding two pouch walls one of which has a stoma aperture over an area extending from the top edge of the pouch past the region of the weld seam around the aperture. A separator member is inserted into the partially welded pouch and an adhesive label is then welded or bonded to the pouch wall around the aperture. The separator member is withdrawn and the contour welding is completed to form the completed pouch.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: June 14, 1983
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Ole R. Jensen
  • Glycidyl methacrylate polymers, their preparation and solvolysis products
    Patent number: 4388448
    Abstract: Homopolymers of glycidyl methacrylate (GMA) and copolymers of GMA with other methacrylate comonomers; their preparation employing an anionic initiator which is the adduct of a selected organo(alkali metal) compound and at least one mole of methyl methacrylate or another lower alkyl methacrylate; as well as solvolyzed forms of the GMA polymers.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: June 14, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Lester R. Melby
  • Article display rack
    Patent number: D269312
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: June 14, 1983
    Assignee: Daniel E. Gelles Associates, Inc.
    Inventor: Vincent L. Marks, Jr.