Patents Assigned to E
  • N-heterocyclic alcohol derivatives
    Patent number: 5151513
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is an N-heterocyclic group as defined herein, are disclosed. These compounds are inhibitors of renin and therefore useful as cardiovascular agents.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: September 29, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Harold N. Weller, III, Denis E. Ryono
  • Device for killing insects
    Patent number: 5150541
    Abstract: This invention concerns a device for killing insects consisting essentially of (i) a toxin-containing element, and (ii) a mesh covering for the toxin-containing element of (i) to protect nontarget organisms from contact with the toxin, the toxin-containing element comprising about 50% to 78% of the surface area and the mesh covering comprising about 22% to 50%; and a method for killing insects by exposing them to contact with the described device.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: September 29, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James P. Foster, Philip V. Jennings
  • Hemming machine and method
    Patent number: 5150508
    Abstract: This invention relates to a machine and a method for forming a unitary structure from a first steel panel having an upturned flange and a second steel panel having a flat edge portion. The machine is comprised of a support surface for receiving the two panels in a nested relation. The support surface, holding the nested panels, is moved to a pre-hem position. The support surface then presses the flange of the first panel against a pre-hem flange engaging member to bend the flange to approximately 45.degree. with respect to the plane of the first panel. The support surface moves the nested panels to a final hem position. The support surface then presses the flange against a final hem engaging member to bend the flange into full engagement with the edge portion of the second panel to form a unitary structure.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: September 29, 1992
    Assignee: E. R. St. Denis & Sons, Limited
    Inventor: Lucen St. Denis
  • Alkynylamino-nucleotides
    Patent number: 5151507
    Abstract: Alkynylamino-nucleotides and labeled alkynylaminonucleotides useful, for example, as chain terminating substrates for DNA sequencing are provided along with several key intermediates and processes for their preparation. For some applications, longer, hydrophilic linkers are provided.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: September 29, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Frank W. Hobbs, Jr., George L. Trainor
  • Protective helmet
    Patent number: 5150479
    Abstract: An improved fireman's helmet is disclosed which includes an outer shell, a compressible, non-resilient foam liner, and an inner shell of hemispherical shape conforming to the foam liner. An annularly extending channel of generally U-shaped cross-section is integrally formed on and around an outer edge portion of the inner liner into which an edge portion of the foam liner is disposed. A series of flexible, stretchable, resilient crossing one another at an apex, extend radially outwardly and downwardly from the apex and extend under and across the channel, thence upwardly between the liner and the outer shell to connections on distal end portions thereof with rigid, non-resilient, incompressible anchors resting on a floor of the channel. The anchors are disposed within open slots formed in and around outer surface portions of the liner.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: September 29, 1992
    Assignee: E. D. Bullard Company
    Inventor: Richard A. Oleson
  • Preparation of polytetramethylene ether glycol using an acidic zirconia catalyst
    Patent number: 5149862
    Abstract: A process for polymerizing tetrahydrofuran to produce polytetramethylene ether glycol or ester-capped polytetramethylene ether glycol is disclosed. The reaction mass is carried out at 10.degree. to 80.degree. C. and preferably 20.degree. to 60.degree. C. In a preferred aspect of the invention, a mixture of acetic anhydride and acetic acid is present in the reaction mixture.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: September 22, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Suriyanarayan Dorai, Melvin C. Baker, James A. Schultz
  • Die cutting and welding device for an on-demand bag forming machine incorporated in a checkout counter
    Patent number: 5149316
    Abstract: A welding and die cutting device for an apparatus for automatically forming bags on demand from an elongated web of film is selectively switchable between a first operating mode in which the formed bags are provided with unitary handles and a second operating mode in which the formed bags are fully closed and no handles are formed thereon. A first one of a pair of reciprocatable mobile holders carries a welding counter-plate to which is mounted a horizontal blade for transverse cutting and separation of formed bags from the web. A plurality of substantially vertical blades for longitudinally cutting the web to form handles on a bag being formed are carried on and depend outwardly from a bladeholder that is interposed between the first mobile holder and the counter-plate. The bladeholder is slidably and elastically linked to the first mobile holder for movement therewith and relative thereto.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: September 22, 1992
    Assignee: A.W.A.X. Progettazione E Ricerca S.R.L.
    Inventors: Angelo Cappi, Renato Rimondi
  • Finned housing
    Patent number: 5150278
    Abstract: An electrical component housing has a wall with an outwardly facing wall shaped to define rows of cooling fins with row channels between. Gaps are provided in the fin rows to define angle channels at 30.degree. to 60.degree. to the row channels.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: September 22, 1992
    Assignee: J. E. Thomas Specialties Limited
    Inventors: Kenneth W. Lynes, Zdenek Nepovim
  • Stabilized polyacetal compositions containing a mixture of HALS having tertiary functionality
    Patent number: 5149723
    Abstract: This invention relates to polyacetal compositions that are stabilized against ultraviolet light and heat degradation due to the inclusion therein of a mixed hindered amine light stabilizer (HALS) system, wherein each HALS of the system contains a hindered amine that is of tertiary functionality.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: September 22, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard A. Hayes
  • Method for manufacturing 3-amino-2-cyclohexene-1-one, and a novel polymer ingredient and its preparation
    Patent number: 5149874
    Abstract: A method of manufacturing 3-amino-2-cyclohexene-1-one by hydrogenating m-phenylenediamene to produce a novel intermediate salt of 3-amino-2-cyclohexene-1-imine followed by hydrolysis to produce 3-amino-2-cyclohexene-1-one. The novel intermediate 3-amino-2-cyclohexene-1-imine has also be isolated.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: September 22, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Stephen E. Jacobson
  • Synthesis of 2-alkylhexahydropyrimidines from nitriles
    Patent number: 5149809
    Abstract: Process for producing 2-alkylhexahydropyrimidines from 1,3-diamines and alkyl nitriles using a hydrogenation catalyst.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: September 22, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frank E. Herkes
  • Coupling of optical fiber to optical waveguide device
    Patent number: 5150440
    Abstract: A method of coupling an optical fiber with an optical waveguide device at an elevated temperature, through a symmetrical opening, in the presence of a liquid photohardenable composition, in order to extend the operability of the coupling over a wide range of temperatures.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: September 22, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Bruce L. Booth
  • Carpets made with anti-static yarns containing polystyrene
    Patent number: 5147704
    Abstract: A process wherein freshly-spun, undrawn, nonconductive filaments are combined with one or more spin-oriented, conductive filaments having a nonconductive component made from a major portion of nonconductive, fiber-forming polymeric material and a minor amount of polystyrene, the combined fibers being drawn and co-bulked to produce an anti-static yarn. The conductive filaments used in this process have higher elongations to break, and carpets tufted from the yarns of the process show improved anti-static properties.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: September 15, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Perry H. Lin
  • Foam blowing agent composition and process for producing foams
    Patent number: 5147896
    Abstract: This invention relates to the use of polyfluorocarbon blowing agents in the preparation of polymer foams; particularly the use of 1,1-difluoroethane in the preparation of polystyrene foams for food packaging and food serving.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: September 15, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert O. York
  • Packing assembly for use with reeled tubing and method of operating and removing same
    Patent number: 5146994
    Abstract: A packing assembly which is connectable to reeled tubing and which can be inserted in and pushed through a wellbore tube by the reeled tubing. The packing assembly is hydraulically set in a locking and sealing position in the wellbore by fluid introduced from the reeled tubing and, after use, is hydraulically released and removed from the wellbore. An actuating apparatus is provided for hydraulically actuating the packing assembly and can be converted in a manner to pull the packing assembly from the wellbore. Prior to the removal of the packing assembly from the wellbore, the wellbore fluid pressure is equalized across the packing assembly.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: September 15, 1992
    Assignees: Otis Engineering Corporation, Shell Western E&P, Inc.
    Inventors: Charles W. Pleasants, Pat M. White, Ronald J. Fischer, Robert D. Harrison, Jr., John R. Setterberg, Jr.
  • Process for the preparation of optical color filters
    Patent number: 5147743
    Abstract: A process for the preparation of a color filter is described utilizing an exposure step of a light-sensitive material, imagewise exposing, toning and heat treating.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: September 15, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mario Grossa
  • Flash-spinning polymeric plexifilaments
    Patent number: 5147586
    Abstract: An improved process is provided for flash-spinning plexifilamentary film-fibril strands of a fiber-forming polyolefin from a C.sub.4-7 hydrocarbon/co-solvent spin liquid that, if released to the atmosphere, presents a greatly reduced ozone depletion hazard, as compared to the halocarbon spin liquids currently-used commercially for making such strands. The resulting plexifilamentary film-fibril strands have increased tenacity and improved fibrillation compared to strands flash-spun from 100% hydrocarbon spin liquids.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: September 15, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Hyunkook Shin, Sam L. Samuels
  • Process and apparatus for tow cross-section measurement and control
    Patent number: 5146651
    Abstract: Controlling the cross-sectional characteristics of moving tow lines by providing monitors and positioning devices so as to improve stuffer box crimp uniformity. The mass distribution profile of a filamentary tow band is continuously measured as a function of the width of the band, and the information obtained is used to change the position of the band when a deviation from a predetermined value is noted. Positioning devices are used to carry out the movement or adjusting of the band in accordance with a signal so as to correct the deviation and present to a crimping apparatus, such as a stuffer box crimper, a band having a uniform mass distribution profile.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: September 15, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joseph J. Duffy, Jerry F. Potter, Elwood A. Roth, Kalika R. Samant, Richard E. Thek, Maurice C. Todd
  • Bottle
    Patent number: D329385
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: September 15, 1992
    Assignee: Aveleda - Sociedade Agricola e Commercial Da Quinta Da Aveleda, S.A.
    Inventor: Luis M. Alves Machado Guedes
  • Multiple hulled boat
    Patent number: D329418
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: September 15, 1992
    Assignee: Corporate E-Ticket, Inc.
    Inventor: Curtiss E. Jackson