Patents Assigned to E
  • Melt cutter apparatus
    Patent number: 4179255
    Abstract: An improved melt cutter apparatus for producing pellets from a strand of a partly molten thermoplastic resin in cooperation wth an extrusion die is provided. The apparatus comprises a drive shaft, a drive rod rotatably connected thereto, a knife holder connected rotatably to the drive rod, a knife attached thereto and means for advancing the knife toward the extrusion die.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: December 18, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Alan D. Hale
  • Magneto rotor construction
    Patent number: 4179634
    Abstract: Rotor for a magnetomotive device in the form of an annular casting having a cavity or slot formed in the periphery thereof. The cavity includes locating surfaces. A permanent magnet is held in clamping relation within said cavity between a pair of pole pieces which include arcuate pole faces coaxial with the rotor. Retaining pins disposed in registered recesses of the cavity and pole pieces hold said pole pieces in said slot and urge surface portions thereof radially against said locating surfaces which are oriented to cause the pole pieces to exert clamping forces against the magnet disposed therebetween with the pole faces disposed in coaxial relation in the rotor.
    Type: Grant
    Filed: June 2, 1978
    Date of Patent: December 18, 1979
    Assignee: R. E. Phelon-Company, Inc.
    Inventor: Bob O. Burson
  • Amino acid derivatives
    Patent number: 4179434
    Abstract: New substituted acyl derivatives of amino acids which have the general formula ##STR1## are useful as angiotensin converting enzyme inhibitors.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: December 18, 1979
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Miguel A. Ondetti, Michael E. Condon
  • Novel imidazothiazine-1,3 (2H)-diones
    Patent number: 4179276
    Abstract: This invention relates to novel 2-aryl-1H-imidazo-[5,1-c][1,4]thiazine-1,3(2H)-diones, to agricultural compositions containing them and to the method of use of these compounds as pre- or postemergence herbicides for general control of undesirable vegetation. The invention also includes novel intermediate compounds for making the novel compounds.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: December 18, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Jiin-Duey Cheng
  • (N-lower alkyl-3,5-dioxo-3-pyrrolidinyl)thioalkanoylpyrrolidine-and piperidine-carboxylic acid compounds
    Patent number: 4179568
    Abstract: Compounds having the formula ##STR1## wherein R.sub.1 and R.sub.4 each is hydrogen, lower alkyl or phenyl-lower alkyl; R.sub.2 is lower alkyl; R.sub.3 is hydrogen, hydroxy or lower alkyl; R.sub.5 is hydrogen or lower alkyl; m is 2 or 3; and n is 0, 1 or 2; are useful analytical tools.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: December 18, 1979
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Allen I. Cohen, Kishin J. Kripalani
  • Phase modulation system for combining carrier wave segments containing selected phase transitions
    Patent number: 4179672
    Abstract: A phase modulation system is described in which the phase of a carrier wave can assume one of a number of permitted values in each symbol period and wherein transitions between the permitted values occur at transition periods between symbol periods. Difficulties associated with phase transitions are reduced or overcome by storing or generating the transitions with a number of cycles of the carrier wave of the appropriate phase(s) on either side thereof, a wave train being built up by merging the corresponding oscillations of the same phase which succeed and preceed respectively two adjacent transitions.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: December 18, 1979
    Assignee: E M I Limited
    Inventor: Roger Voles
  • Knee joint structure for artificial legs
    Patent number: 4178642
    Abstract: An artificial leg of the kind in which the shin portion and the knee portion are shaped from a block of wood or similar solid material, has the knee and shin portions connected by pairs of front and rear links, the effective length of the front links being less than that of the rear links and the connections between the links and the knee and shin portions being positioned so as to form an articulation of which the instantaneous center of rotation lies upon an ascending curve for a predetermined angle of relative rotation between the two portions of the leg from the fully extended position. The resultant joint provides a stable weight support until it has been flexed through the predetermined angle and is thereafter capable of flexure through more than a right angle.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: December 18, 1979
    Assignee: J. E. Hanger & Company Limited
    Inventor: Denis R. W. May
  • Signal switch assembly
    Patent number: 4179592
    Abstract: A multifunction signal switch assembly suited for use in heavy duty trucks or the like requiring a rugged installation which can be readily dismantled and reassembled for convenient maintenance. The switch mechanism includes easily replaceable plug-in contact modules and a simple pilot light arrangement which renders the apparatus compatible with most standard two or three terminal flasher systems typicall used in the industry. The apparatus, in addition to the conventional turn signal and hazard warning functions, also supplies an additional function that can be wired, atthe user's option, into any number of automotive related circuits such as a headlight dimming circuit or the like.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: December 18, 1979
    Assignee: R. E. Dietz Co.
    Inventor: Edward J. Nitsch
  • Process for preparing herbicidal triazines
    Patent number: 4178448
    Abstract: An improved process for preparing 3-cyclohexyl-1-methyl-6-dimethylamino-s-triazine-2,4(1H,3H)dione by the following reaction sequence: ##STR1## the improvement comprising using R=ethyl, n-propyl or isopropyl, preferably ethyl, thus permitting significantly higher practical overall yields.Related 3-substituted-1-methyl-6-substituted amino-s-triazine-2,4(1H,3H)diones and 4-thio-2,4(1H,3H)-diones are prepared similarly. These products are useful as herbicides.
    Type: Grant
    Filed: April 12, 1978
    Date of Patent: December 11, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles D. Adams, Earl W. Cummins, Steven I. Gleich
  • Chopping-raising-cleaning assembly for sugar cane harvesting machines
    Patent number: 4177953
    Abstract: A chopping-raising-cleaning assembly for sugar cane harvesting machines in which the operations of cutting the cane into billets, cleaning of said billets and elevation and transport of the billets to a loading position is out by a billet chopping-throwing device in which one rotative or two fixed discharge ducts are attached. According to the present invention the cane is chopped into billets which are thrown into a cylinder having internal rotative fins that move the billets, throwing them upwardly through a tangential opening in the cylinder at a speed sufficient to allow the billets to go up through the corresponding duct, allowing the unloading of the billets on the transport vehicles. The cleaning of the billets is aerodynamically carried out assisted by an extracting fan disposed in each duct.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: December 11, 1979
    Assignee: Santal Equipamentos S. A. Comercio E. Industria
    Inventor: Luiz Antonio C. Ribeiro Pinto
  • Substituted pyrano[4,3-c]pyrazoles, compositions containing same, and method of use
    Patent number: 4178379
    Abstract: 2,4,6,7-Tetrahydropyrano[4,3-c]pyrazoles are provided having the formula ##STR1## wherein Z is O, S, SO or SO.sub.2 ; R is H, halo, lower alkyl, lower alkoxy, lower alkanoyl, aroyl, cyano or CF.sub.3 ; and R' is H, lower alkyl, aryl-lower alkyl, aryl or halo-lower alkyl. In addition, pharmaceutical compositions containing the above compounds and a method of using same to treat inflammatory conditions in mammalian species is also provided.
    Type: Grant
    Filed: June 7, 1978
    Date of Patent: December 11, 1979
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: George C. Rovnyak
  • Lenses with distortion
    Patent number: 4178075
    Abstract: An objective lens particularly for use in a low light level or night vision system designed to introduce a controlled amount of barrel distortion at the edges of its field of view to permit use with a flat input faced imaging tube.
    Type: Grant
    Filed: February 1, 1978
    Date of Patent: December 11, 1979
    Assignee: Pilkington P. E. Limited
    Inventor: Philip J. Rogers
  • Cistern pumping plant
    Patent number: 4178139
    Abstract: A cistern pumping plant having within a cistern at least one pump which for the purpose of maintenance and repairs is liftable along guides up onto a servicing platform in the cistern. The servicing platform and/or a part thereof is a plate hinged to the cistern and turnable to an opened position.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: December 11, 1979
    Assignee: Oy E. Sarlin AB
    Inventors: Rauno Seppanen, Hannu Sarvanne, Sixten Jakobsson
  • 3-(Substituted hydrazino)benzisothiazole-1,1-dioxides
    Patent number: 4178451
    Abstract: Compounds having the formula ##STR1## wherein R.sub.1 is hydrogen, halogen, alkyl, alkoxy or nitro; R.sub.2 is hydrogen, halogen or alkoxy; and R.sub.3 is alkoxycarbonyl, ##STR2## pyridinylcarbonyl, pyrimidinylcarbonyl, or pyrazinylcarbonyl; have antiinflammatory activity.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: December 11, 1979
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Peter C. Wade, B. Richard Vogt
  • Substituted acyl derivatives of amino acids
    Patent number: 4178291
    Abstract: New substituted acyl derivatives of amino acids which have the general formula ##STR1## are useful as angiotension converting enzyme inhibitors.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: December 11, 1979
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Miguel A. Ondetti, Frank L. Weisenborn
  • Radiography
    Patent number: 4178511
    Abstract: This application describes a rotation-only CT scanner with beam deflections; the deflection and the rotation being so related as to permit the derivation of absorption data in groups focussed on respective "pivot points" outside the detector locus. Data derived from different detectors, but focussed on the same pivot point, relate to groups of paths, some of which overlap, and the overlap is used to compare the performances of different detectors. To reduce data handling, data provided by adjacent detectors can be combined.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: December 11, 1979
    Assignee: E M I Limited
    Inventors: Godfrey N. Hounsfield, Richard M. Waltham
  • Process and product
    Patent number: 4178419
    Abstract: Aromatic polyamide foams having a density of 0.025 to 0.7 g./cm..sup.3 are prepared by heating N,N'-dialkyl aromatic polyamides having at least one .beta. hydrogen atom on the alkyl groups, a plasticizer and an aromatic sulfonic acid catalyst at 250.degree. to 340.degree. C. for a length of time sufficient to remove substantially all of the N-alkyl groups.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: December 11, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Wesley Memeger, Jr.
  • Centrifugal impellers
    Patent number: 4178131
    Abstract: A centrifugal impeller for use in a combination centrifugal-turbine pump capable of pumping liquids at or near the boiling point thereof with suction heads not greater than about one foot and wherein the entrance portion of the centrifugal impeller includes one or more of vane inserts removably mounted therein, with adjacent ones of the inserts having vanes that are aligned with each other to define liquid-feeding spiral vanes that extend through the plurality of inserts.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: December 11, 1979
    Assignee: Roy E. Roth Company
    Inventor: Leonard J. Sieghartner
  • Voice actuated mobile radio
    Patent number: 4178548
    Abstract: This invention relates to a method and apparatus for operating a mobile communications transmitter/receiver type radio from a motorcycle or in another high ambient noise environment. A contact vibration transducer is provided for being coupled to the throat area of the communicator for generating a transmit audio signal responsive to the vibrations of the vocal cords talking. The transmit audio signal is then coupled to a modulator section of the communications transmitter for modulating the transmitter output. A voice operated relay is provided for switching the transmitter/receiver into and out of the transmit mode responsive to receiving the transmit audio signal from the contact vibration transducer. In this manner the transmit audio signal and the transmit/receive switching will be relatively impervious to the high ambient noise levels surrounding the communicator.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: December 11, 1979
    Assignees: Geraldine E. Thompson, James G. Thompson
    Inventor: James G. Thompson
  • Ray-path equalizer for signal-transmission system using multimode light guides
    Patent number: 4178066
    Abstract: Signals, especially short pulses, are transmitted by way of a series of aligned light guides with internally reflecting boundaries (i.e. fibers or foils), with interposition of two identical transparent elements each refracting incident rays from the proximal guide end toward the remote guide end along paths which intersect the common guide axis at points near the center of the respective element for angles of incidence close to zero and at points near the center of the opposite element for angles of incidence close to a critical angle .THETA..sub.M << 1 (in radians). The transparent elements could be planoconvex lenses, which may be divided into Fresnel zones, or holograms; they could also be replaced by an optically equivalent transparent body whose refractive index varies along a generally parabolic law with increasing distance from the axis.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: December 11, 1979
    Assignee: CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.
    Inventor: Pietro Di Vita