Patents Assigned to E
  • 4,5-dihydro-1H-benzazepine-3-carboxylic acid esters which are useful as anti-hypertensive agents
    Patent number: 4824831
    Abstract: Compound of the formula ##STR1## wherein R.sub.3 is aryl and R.sub.1 is hydrogen or ##STR2## are disclosed. These compounds are useful as cardiovascular agents, and especially as anti-hypertensive agents.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: April 25, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Karnail Atwal
  • Multilayer circuit board with fluoropolymer interlayers
    Patent number: 4824511
    Abstract: A multilayer circuit board consisting of multiple circuit layers supported on sheets of PTFE or PTFE containing a fibrous stiffening agent, said circuit-bearing sheets being joined in fixed relative positions by means of separating layers of a adhesive unsintered tetrafluoroethylene resin.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: April 25, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frederick N. Hartman, Alan C. Knight
  • Device for gripping and holding back articles, such as for example containers, on a conveyor, and conveyor equipped with this device
    Patent number: 4823934
    Abstract: The present invention concerns a device for gripping and holding back containers having two casings solid respectively with two chains, each of these casings including two racks engaging with a pinion which actuates in a synchronized manner both racks, each of which is coupled to one end of two transversal plates with respect to the chains, which plates can be simultaneously spaced apart and brought together to adapt to containers of any shape and dimension.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: April 25, 1989
    Assignee: E. P. Remy & Cie.
    Inventors: Didier Lemaire, Jean-Marc Dronet
  • Coextrusion blowmolding process
    Patent number: 4824618
    Abstract: A process for coextrusion blowmolding of multilayer polymer articles, wherein a multilayer parison is extruded through a die, introduced into a mold, and blowmolded, the flow of multilayer plastic material being periodically interrupted, and additional plastic material being injected into the extrusion die at timed intervals, so that this additional material forms portion of the parison which later are trimmed from the molded article and reprocessed for reuse.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: April 25, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William L. Strum, Alvin S. Topolski
  • MOS selfchecking microprogrammed control unit with on-line error detection
    Patent number: 4823307
    Abstract: The control unit detects the errors concurrently with normal microinstruction execution through suitable internal checking circuits and a determined microinstruction allocation in the memory. Microinstructions comprise additional fields (CS, FS) carrying the encoding, in Modified Berger code, of the allocation address of the microinstruction itself and of the following one. The microinstructions of destination of conditional jumps are allocated so that their codes are related to each other by simple logic relationships which are then reproduced by an internal circuit (CSM). The two fields, the one of the next microinstruction being duly delayed, are then compared and possible differences represent unidirectional and incorrect sequencing errors. The other errors are detected through particular implementations of some internal circuits (STK1, INC1) and duplication of others (RCT, SEL).
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: April 18, 1989
    Assignee: Cselt - Centro Studi e Laboratori Telecomunicazioni S.P.A.
    Inventors: Marcello Melgara, Maurizio Paolini, Maura Torolla
  • Shingle cutting tool
    Patent number: 4821609
    Abstract: A shingle cutting tool for cutting portions of shingles from an existing shingled roof. The tool is adapted for pushing or pulling action while the user is in an upright position, and includes one or more V-shaped cutting notches formed in the end of a generally rectangular steel plate, the cutting notch forming a lifting lip that is used to pry a shingle upwardly into a position so that it can be cut. The tool is pushed along or pulled along the roof surface so that the respective shingle tabs enter the V-shaped cutting notch to permit the tabs to be severed from the existing roof.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: April 18, 1989
    Assignee: Stanley E. Rushbrook
    Inventors: Stanley E. Rushbrook, Tommy M. Scott
  • Process for preparing polyfluoro .gamma.-ketoesters and lactone isomers thereof
    Patent number: 4822897
    Abstract: Polyfluoro .gamma.-ketoester compounds are obtained by reaction of ethylenic monoolefins, a metal or quaternary ammonium cyanide, and a fluoroester. These compounds, which have a general formula R.sub.F C(O)CFYCF.sub.2 CO.sub.2 R.sup.1, can be copolymerized directly with fluorinated ethylenic monoolefins, or further reacted to form vinyl ether and allyl ether derivatives which may also be copolymerized with ethylenic comonomers, forming solid, moldable copolymers with useful properties determined by the nature of pendant functional groups R.sub.F.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: April 18, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Carl G. Krespan
  • Herbicidal sulfonamides
    Patent number: 4822403
    Abstract: The invention relates to certain sulfonamide compounds having substituents ortho to the sulfonylurea linkage, said substituents including alkenyl, substituted alkenyl, cycloalkenyl, substituted cycloalkenyl, alkynyl and substituted alkynyl.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: April 18, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: James V. Hay, Barry A. Wexler, Donna F. Zimmerman
  • Method and apparatus for reducing the moisture content of wet yarns
    Patent number: 4821427
    Abstract: A method and apparatus for reducing the moisture content of wet yarns are disclosed. Wet yarn is supplied to a pair of internally heated drier rolls which contact and spirally advance the yarn along the rolls to progressively dry the yarn. Heat is supplied to the rolls at a rate in excess of that necessary to reduce the moisture content to a predetermined level. Water is sprayed on areas of the rolls not in contact with the yarn to cool the contact surfaces. The moisture content of the yarn is measured subsequently to discharge and a signal is produced which corresponds to the moisture content. In order to achieve a desired moisture content, the spraying of water is controlled in response to the signal produced by measuring the moisture content so that the yarn discharged from the rolls approaches the predetermined level.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: April 18, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Terry S. Chern
  • Female incontinence device
    Patent number: 4822347
    Abstract: An incontinence device for females is intended for long term wear. It includes a tubular sheath integral with a funnel and a urine-conducting pipe. The sheath is secured to a pad of adhesive material having a central hole leading into the interior of the sheath. The pad is dimensioned so that it can be stuck to the skin of the wearer in the region immediately surrounding the urethral orifice (meatus).
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: April 18, 1989
    Assignee: E. R. Squibb and Sons, Inc.
    Inventor: Morag M. MacDougall
  • Tension measuring apparatus
    Patent number: 4821583
    Abstract: A threadline tension measuring apparatus having a dual beam cantilever supporting an even threadline guide surface wherein tension measured is insensitive to axial location of threadline loading. Overload and structural protection for the apparatus are provided.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: April 18, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Brian D. Richards
  • Group transfer polymerization and initiators therefor
    Patent number: 4822859
    Abstract: Novel silicon-based initiators, for example, [(1-methoxy-2-methyl-1-propenyl)oxy]trimethoxysilane, for Group Transfer Polymerization.
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: April 18, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dotsevi Y. Sogah
  • Robot joints
    Patent number: 4821594
    Abstract: A robot joint having a ball-like arrangement on a support, the ball arrangement positioned in a socket device in which the ball is free to move so the socket device can rotate in various directions about the ball arrangement. First and second connectors connect force imparting arrangements to fixed points in the socket device. One of these force imparting arrangements is capable of approaching or receding from the other in some rotations of the socket device.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: April 18, 1989
    Assignee: Mark E. Rosheim
    Inventors: Mark E. Rosheim, Hans W. Trechsel
  • Dispensing cock for liquid, notably for beer
    Patent number: 4821764
    Abstract: The beer tap is made with stainless steel lines having constant cross-section and smooth bends and which are embedded in plastic. In an open position, the discharge line communicates with the feed line via two plates. In the closed position, the discharge line is rotated into communication with a cleaning line in the tap body.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: April 18, 1989
    Assignee: Ateliers de Construction E. Molinet
    Inventor: Simon Brenez
  • Movable cleaning assembly for an aspirating needle
    Patent number: 4820497
    Abstract: A liquid dispensing apparatus is characterized by a cleaning arrangement movable with the aspirating needle of the apparatus. The cleaning arrangement includes a pair of mating wellheads one of which has a flange with a planar surface thereon. The other of the wellheads has a corresponding cutout therein. When registered, the wellheads cooperate to define a well-like chamber with a closed bottom. The wellheads are each mounted on an arm which is movable from open to closed dispositions in response to movement of the aspirating needle.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: April 11, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gary W. Howell
  • Defluorination process using activated carbon
    Patent number: 4820883
    Abstract: A method for preparing an unsaturated fluorocarbon by defluorinating a perfluoroalkene employing activated carbon.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: April 11, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frank J. Weigert
  • Tetrazole intermediates to antihypertensive compounds
    Patent number: 4820843
    Abstract: Tetrazole intermediates useful to prepare antihypertensive compounds described in coassigned application U.S. Ser. No. 884,920, filed July 11, 1986, are described, these tetrazoles have the formula: ##STR1## wherein X.sup.1 and X.sup.2 are as described in the specification.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: April 11, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul E. Aldrich, John Jonas V. Duncia, Michael E. Pierce
  • Amino acid 1,2-diketo derivatives as renin inhibitors
    Patent number: 4820691
    Abstract: Compounds of the formula ##STR1## are disclosed. These compounds interevene in the conversion of angiotensin to angiotensin II by inhibiting renin and thus are useful as anti-hypertensive agents.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: April 11, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Dinesh V. Patel
  • Defluorination process using activated carbon
    Patent number: 4820884
    Abstract: A method for preparing an unsaturated fluorocarbon by defluorinating a perfluoroalkane employing activated carbon.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: April 11, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frank J. Weigert
  • Segment of a vehicle tire
    Patent number: D300812
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: April 25, 1989
    Assignee: Fate Sociedad Anonima Comercial E Inmobiliaria
    Inventor: Delfin A. Rabinovich