Patents Assigned to E
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Patent number: 4329449Abstract: The present invention relates to the preparation of aldoside mixtures, recovering at least a portion of one aldoside component therefrom and reusing the remaining portion of the aldoside mixture to prepare additional aldoside. The aldoside mixture may be prepared by slurrying the carbohydrate in alcohol and passing the slurry through a continuous reactor at an elevated temperature under fluid pressure in the presence of an acid catalyst. The resultant aldoside mixture may then be partitioned into a mother liquor portion and an aldoside portion by selectively recovering at least a portion of one aldoside from the crude aldoside mixture with the remaining mother liquor being recycled.Crude glycoside mixtures prepared from starch and methanol slurries are suitable substrates for selectively recovering methyl-alpha-D-glucopyranoside. The methyl-alpha-D-glucopyranoside may be easily crystallized and recovered from the glycoside mixture because of its lower solubility in methanol.Type: GrantFiled: March 3, 1980Date of Patent: May 11, 1982Assignee: A. E. Staley Manufacturing CompanyInventors: Claris D. Roth, Kenneth B. Moser, William A. Bomball
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Patent number: 4329006Abstract: A fuse holder for a miniature cartridge fuselink, comprises a hollow body and a fuse carrier, formed as plastic mouldings, and two spring metal contact members engagable witih the outside of the body and having central parts which project into the cylindrical chamber of the body through slots in the body wall. The construction is such that the fuse carrier can only be inserted into the body when it is oriented in one predetermined position relative to the body and, in this position, there are barriers of insulation material between the end caps of a fuselink snapped into the fuse carrier and the potentially live electrical terminals on the body. When the fuse carrier is fully inserted into the body, it can be rotated through one half turn to engage the end caps of the fuselink with the contacts. The fuse holder prohibits a user from touching any live terminals, and the end caps of the fuselink cannot engage the contacts of the holder while the fuse carrier is being inserted into or removed from the holder.Type: GrantFiled: February 1, 1980Date of Patent: May 11, 1982Assignee: Kenneth E. Beswick LimitedInventor: James A. S. Gale
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Patent number: 4328973Abstract: A novel shaft seal suitable for use on agitator shafts and pump shafts such as those commonly found in industrial chemical process equipment, said seal comprising a conventional mechanical seal in combination with packing of a particular material of construction, configuration and which is held under substantially constant compression, such that when fluid is provided under pressure into a stuffing box containing such packing, the fluid will flow through the packing into the process stream with sufficient velocity to prevent process fluid from flowing back into the stuffing box, and yet with insufficient volume rate of flow to cause significant dilution of the process fluid.Type: GrantFiled: April 17, 1980Date of Patent: May 11, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Albert J. Delbridge
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Patent number: 4329476Abstract: Compounds of the formula: ##STR1## wherein R is alkyl, alkenyl or cycloalkyl optionally subsituted with chlorine, cycloalkylalkyl and (CH.sub.2).sub.n R'whereinn is 1-3 andR' is phenyl optionally substituted with CH.sub.3, CH.sub.3 O, NO.sub.2 or 1-2 halogens are useful to control a broad range of fungus diseases and insect and larval pests.Type: GrantFiled: April 21, 1980Date of Patent: May 11, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thomas S. Woods
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Patent number: 4329445Abstract: A modified montmorillonite clay is prepared by heating it, impregnating it with an organic liquid, acid-activating it with a strong acid, and then washing it with water until it is substantially free of acid anions. The modified clay is useful as a catalyst, particularly for the preparation of tetrahydrofuran/alkylene oxide copolymers.Type: GrantFiled: May 30, 1980Date of Patent: May 11, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thomas W. Del Pesco
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Patent number: 4328988Abstract: A bed for a pickup truck having side gates in the sidewalls thereof and a tailgate in the rear wall thereof having exterior contours identical to the exterior contours of the wall within which the gates are located, to provide increased accessibility to the interior of the bed and an aesthetically appealing design. The gates are supported to provide strength to resist against loads disposed in the bed that may be forced against the gate by having support members secured thereto on the inboard side of the gate along with the gate having a strength contour along its inboard side. The bed also has a low profile yet having support for heavy loads by having the floor joists separated, having inboard joists secured to the chassis of the vehicle and outboard joists secured to the bed below the floor of the bed.Type: GrantFiled: August 7, 1980Date of Patent: May 11, 1982Assignee: C. E. Pollard CompanyInventors: Albert E. Patterson, Timothy C. Pollard
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Patent number: 4329276Abstract: A blend of a methacrylate, acrylate or styrene polymer; selected ethylene terpolymers, and carbon black is useful to add to polyvinyl chloride polymers to make molding resins.Type: GrantFiled: March 11, 1981Date of Patent: May 11, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Joseph E. Reardon
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Patent number: 4329419Abstract: A polymeric heat resistant photopolymerizable composition of a polyamide ester resin containing photopolymerizable groups useful for forming relief structures on electrical devices such as capacitors, integrated circuits and semiconductors; a solution of the composition is applied to a substrate such as a coated silicon wafer which forms an electrical device, dried to form a film, the film is exposed to radiation through a pattern and photopolymerized; the unexposed and unpolymerized part of the film is dissolved off and the resulting relief structure is baked to form a polyimide structure with sharp definition and has good mechanical, chemical and electrical properties; to reduce radiation exposure time and increase the rate of photopolymerization the following constituents are used in the composition:a radiation sensitive polymerizable polyfunctional acrylate compound and a photopolymerization initiator of an aromatic biimidazole.Type: GrantFiled: September 3, 1980Date of Patent: May 11, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventors: David L. Goff, Edward L. Yuan, Stephen Proskow
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Patent number: 4329694Abstract: A process for reproducing graphic information wherein a magnetic image is formed in a premagnetized layer of acicular chromium dioxide by heating the chromium dioxide selectively to above its Curie point. Ferromagnetic toner particles are then applied uniformly to the chromium dioxide layer, so as to adhere only in the magnetized areas. The toner particles are electrostatically transferred to a substrate and fused into position. Alternating current coronas or other static neutralizing devices are used to neutralize unwanted charges on toner particles which would otherwise cause fuzzy images and unwanted background markings on the final copies.Type: GrantFiled: October 22, 1979Date of Patent: May 11, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventors: Donald W. Edwards, Emery J. Gorondy, Arend Van Roggen
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Patent number: 4329278Abstract: A blend of polyvinyl chloride, a methacrylate, acrylate or styrene polymer, selected ethylene terpolymers, and carbon black is useful to make polyvinyl chloride molded articles.Type: GrantFiled: March 11, 1981Date of Patent: May 11, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Joseph E. Reardon
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Patent number: 4329399Abstract: Coated film having a base layer of an aromatic polymer such as polyimide, polyamide, polyamide-imide, or polyparabanic acid, and having on at least one side thereof a thermally stable, heat-sealable coating comprising a TFE:HFP:VF.sub.2 terpolymer of selected composition. The coated film is useful as wire insulation.Type: GrantFiled: October 6, 1980Date of Patent: May 11, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Isadore Swerlick
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Patent number: 4327661Abstract: A chamber block removably insertable into a centrifuge rotor of the type used for the preparation of cell dispersions on slides is characterized by a opening formed in the chamber block which, when closed, defines a supernatant collection receptacle within the block. A deflection baffle is disposed within the chamber block so that supernatant withdrawn through a suction conduit from the vicinity of the slide is deflected into the collection receptacle.Type: GrantFiled: August 5, 1980Date of Patent: May 4, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: John W. Boeckel
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Patent number: 4328172Abstract: An improved process for the production of dinitriles, e.g., adiponitrile, by the hydrocyanation of 3 and/or 4-pentenenitriles by staging the introduction of hydrogen cyanide to the reaction.Type: GrantFiled: February 24, 1981Date of Patent: May 4, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Morris Rapoport
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Patent number: 4327956Abstract: An elongate dual beam electrical terminal and a connector containing a plurality of same. The terminal has a contact at each end. One of the contacts is defined by a pair of longitudinally disposed beams with laterally opposed stand-off tabs which preload the beams to provide for low insertion force interconnection with pin contacts. The connector includes a terminal housing having a plurality of housing cavities which contain the dual beam contact terminals. For use in the connector, the contacts of the terminals opposite the dual beam ends of the terminals are wire insulation displacement contacts. The latter contacts protrude from the housing cavities for electrical interconnection with insulated wires carried on an insulation displacement contact block. The block is mated with the terminal housing, and a strain relief shroud fits over the block and latches to the terminal housing to form the assembled connector.Type: GrantFiled: March 3, 1980Date of Patent: May 4, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Fred C. Sitzler
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Patent number: 4328241Abstract: Phenylguanidine derivatives are provided having the structure ##STR1## wherein R.sup.1 is lower alkyl, cycloalkylalkyl, or phenylalkyl; R.sup.2 is lower alkyl, phenyl or benzyl; and R.sup.3 is lower alkyl, cycloalkylalkyl, lower alkenylalkyl, dihalovinylalkyl, dihalobutadienyl or phenylalkyl; and n is 1 to 5. These compounds are useful as anthelmintic agents.Type: GrantFiled: July 20, 1981Date of Patent: May 4, 1982Assignee: E. R. Squibb & Sons, Inc.Inventors: Rudiger D. Haugwitz, Barbara V. Maurer
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Patent number: 4327867Abstract: A sink rinsing device including an accelerating nozzle attached by a flexible stem to a fitting which fits onto a sink faucet above the aerator thereof. When not in use, the stem and nozzle lie flat against the underside of the faucet, out of the path of the water emerging from the faucet. When it is desired to rinse the sink, the stem is bent to bring the nozzle underneath the aerator of the faucet. The nozzle is removably fastenable to the fitting to secure the device in this position. Water emerging from the aerator of the faucet can now enter the inlet side of the nozzle, which directs a forceful stream of water against the sides of the sink. The fitting allows the nozzle to be rotated 360 degrees.Type: GrantFiled: May 14, 1979Date of Patent: May 4, 1982Assignee: William E. JonesInventors: William E. Jones, Lynn R. Bowers
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Patent number: 4328519Abstract: An apparatus for reading magnetic documents, comprising an inductively wound gapped core forming part of a tuned circuit which is driven at its resonant frequency, and a means for producing an output signal indicative of the quality factor of the tuned circuit.Type: GrantFiled: October 25, 1979Date of Patent: May 4, 1982Assignee: E M I LimitedInventor: Lewis J. Way
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Patent number: 4328342Abstract: A process is provided for preparing pyrazolo[1,5-c]quinazoline derivatives of the structure ##STR1## wherein X is O or S; R.sup.1 is hydrogen, lower alkyl, hydroxymethyl, phenyl-lower alkyl, phenyl or phenyl substituted with halogen, lower alkyl, lower alkoxy, or trifluoromethyl; R.sup.2 is lower alkoxy, phenyl-lower alkoxy, phenoxy, or phenoxy substituted with lower alkyl or lower alkoxy; and R.sup.3 and R.sup.4 are the same or different and are selected from the group consisting of hydrogen, alkyl of 1 to 4 carbons, alkoxy of 1 to 4 carbons, lower alkanoyloxy of 1 to 4 carbons, nitro, benzyloxy, benzyloxy having a single mono-lower alkoxy substituent, halogen, hydroxy, and trifluoromethyl, wherein quinolone compounds of the structure ##STR2## which are new intermediates, are reacted with a hydrazine compound to form a 5-(2-aminophenyl)pyrazole which is then cyclized to the product.In addition, the above product may be reacted with a halogen acid to form the corresponding hydroxymethyl compound.Type: GrantFiled: April 24, 1981Date of Patent: May 4, 1982Assignee: E. R. Squibb & Sons, Inc.Inventors: Richard A. Conley, Margaret M. Lam, Leroy B. High
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Patent number: 4327743Abstract: A first elastic film containing cholesteric liquid crystals and a second elastic protective film having different elasticities are attached to each other solely along the periphery of the two sheets. Differential air pressure applied across the dual film structure causes it to stretch and conform to the body tissues whose temperature variations are being studied. The liquid crystal containing film and the protective film stretch and adjust independently of one another, in response to differential pressure, to squeeze out any air in the space between the two sheets and to avoid puckering or other distortions. The protective film is in contact with the tissue being investigated and provides a barrier to protect the liquid crystals from contamination yet conveys the underlying temperature accurately to the liquid crystals.Type: GrantFiled: November 21, 1980Date of Patent: May 4, 1982Assignee: E-Z-EM Company, Inc.Inventor: Seymour Katz
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Patent number: D264320Type: GrantFiled: September 27, 1979Date of Patent: May 11, 1982Assignee: V & E Friedland LimitedInventor: John Doggart