Patents Represented by Law Firm Bryan, Cave, McPheeters & McRoberts
  • Patent number: 4886546
    Abstract: A compound of the formula (I) ##STR1## wherein (1) when R.sub.1 is a C.sub.2-11 alkyl, a lower alkenyl, a lower alkynyl, a cycloalkyl, a lower alkoxyalkyl, an aralkyl which may be substituted, a lower haloalkyl or a 5 or 6 membered heterocycle;R.sub.2, R.sub.3 and R.sub.4 are the same or different, hydrogen, a halogen, cyano, nitro, amino, a lower alkyl, a lower haloalkyl, hydroxy, a lower alkoxy, an aryloxy, carboxy, or a lower alkoxycarbonyl;R.sub.5 is hydrogen, a halogen, a C.sub.1-11 alkyl, an aryl which may be substituted, an aralkyl which may be substituted;R.sub.6 is a C.sub.1-11 alkyl, a lower alkenyl, a lower alkynyl, a cycloalkyl, a lower alkoxyalkyl, an aryl which may be substituted, an aralkyl which may be substituted, a lower haloalkyl, or a 5 or 6 membered heterocycle; or R.sub.5 and R.sub.6 may be combined to form a group of --(CH.sub.2).sub.m -- (m is 3 or 4);(2) when R.sub.1 is an aryl which may be substituted;R.sub.2, R.sub.3, R.sub.4 and R.sub.5 have the same meanings as defined above; R.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: December 12, 1989
    Assignee: Daicel Chemical Industries Ltd.
    Inventors: Hiroshi Yagihara, Yukihisa Goto, Kazuhisa Masamoto, Yasuo Morishima, Hirokazu Osabe
  • Patent number: 4886770
    Abstract: Catalysts for the preparation of copolymers of ethylene and/or alpha-olefins and optionally dienes, are obtained by reacting an Al-alkyl with a solid catalytic component comprising:(A) a magnesium compound containing at least an Mg-halogen bond;(B) a halogenated compound of at least partly trivalent Ti or V, containing at least a Ti-OR or V-OR bond, wherein the Mg/Ti(V), halogen/Ti(V), halogen/Mg and OR/Ti(V) atomic ratios are within determined ranges; and(C) an electron-donor compound.Elastomeric copolymers endowed with improved tension set values are obtained with said catalysts.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: December 12, 1989
    Assignee: Ausimont
    Inventors: Illaro Cuffiani, Roberto Fabbri, Gian F. Margelli, Umberto Zucchini
  • Patent number: 4885892
    Abstract: A beam of the type used in the building industry comprising a top and bottom plate (1, 2) secured in a fixed spaced relationship from each other by corrugated sheet metal (3); the metal (3) being dispersed such that its planar surfaces span the distance between the top and bottom plates (1, 2) with the corrugations configured substantially as a rectangular wave having surfaces (4) parallel to the longitudinal axis of the plates and additionally surfaces (8) substantially transverse to such axis; the arrangement being such that the substantially transverse surfaces (8) act as spacers between the top and bottom plates (1, 2) whereas the surfaces (4) of the corrugated metal (3) lying parallel to the longitudinal axis of the top and bottom plates (1, 2) extend part way up the sides of the top and bottom plates (1, 2) to facilitate fixing thereto.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: December 12, 1989
    Inventor: P. G. Gooding
  • Patent number: 4885136
    Abstract: A method of anticorrosive treatment for soft water boilers to prevent iron family metals from corrosion, especially from pitting corrosion, which is characterized by adding, to a boiler water system using soft water at a high temperature, (a) a specific amount of a phosphorus compound, (b) a specific amount of a carboxylic acid compound and (c) a specific amount of a metal compound.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: December 5, 1989
    Assignee: Katayama Chemical Works Co., Ltd.
    Inventors: Sakae Katayama, Hirohiko Katayama, Toshihiko Mukai, Yoshinari Kawasaki
  • Patent number: 4885235
    Abstract: A rapid and sensitive assay method for the detection of antibodies to Human T-Cell Leukemia Virus-III (HIV-I), the AIDS virus, and diagnostic test kits for carrying out method. According to the method of the invention, which is referred to as a Quick Western Blot II or Rapid Western Blot, electrophoretically resolved HIV-I anitgen is incubated in the presence of milk proteins.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: December 5, 1989
    Assignee: 501 Bio-Research Laboratories, Inc.
    Inventors: Kurt B. Osther, Louis M. Dyll
  • Patent number: 4885229
    Abstract: A photosensitive hardenable composition comprising as major components a thermoplastic high molecular binder obtained from specific addition polymerizable monomers, an acrylate (or methacryliate) derivative or mixture thereof and a photopolymerization initiator, which possesses improved properties in softness, stripping properties, stripping time, etc. of hardened layers formed.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: December 5, 1989
    Assignee: 501 Daicel Chemical Industries Ltd.
    Inventors: Fumio Takenaka, Kouzi Tohya, Yoshihiro Ohtsuka
  • Patent number: 4883357
    Abstract: A dual high stability interferometer system capable of measuring linear and angular displacement simultaneously of a movable plane mirror (90) comprises a frequency stabilized laser input beam (10) which is divided into two parallel spatially displaced beams by a beamsplitter (14). An optical system (20) is disposed to produce a first output beam having two orthogonally polarized components in which the phase difference between the two components of the third output beam is related to four times the linear displacement of the movable plane mirror (90) at a first position. A polarizer (93) mixes the orthogonal components of the third output beam with the interference between the two polarization components being detected by a photodetector (94) which produces an electrical signal (96) from which a phase meter/accumulator (99) extracts the phase change, with this phase change being related to four times the linear displacement of the movable mirror (90) at the first position.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: November 28, 1989
    Assignee: Zygo Corporation
    Inventors: Carl A. Zanoni, Alan H. Field
  • Patent number: 4881815
    Abstract: A single interferomter system capable of measuring accurately linear displacement and angular displacement simultaneously of a movable plane mirror (90) comprises a source (10) of a frequency stabilized input beam (12), a polarization beamsplitter (80), two quarter-wave plates (88, 108), a mirror (89), and a retroreflector (81), to reflect one polarization component of the input beam (12) twice from the movable mirror (90) to produce a first output beam and to reflect the other polarization component of the input beam (12) twice from the stationary mirror (89) to produce a second output beam. The beamsplitter (80) recombines the output beams into a third output beam having two orthogonally polarized components related to the linear displacement of the movable mirror (90) at the first position.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: November 21, 1989
    Assignee: Zygo, Corporation
    Inventor: Gary E. Sommargren
  • Patent number: 4881816
    Abstract: An interferometer system capable of measuring linear displacement and angular displacement simultaneously of a movable plane mirror (90) comprises a source (10) of a frequency stabilized input beam (12) and includes an optical system which reflects one polarization component of the input beam (12) twice from a first position on the movable plane mirror (90) to produce beams (30) and reflects the other polarization component of the input beam twice from a stationary plane mirror (89) to produce beam (28). A polarization beamsplitter (80) recombines these beams (30, 28) into a beam (66) in which the phase difference between the two components of the third output beam (66) is related to four times the linear displacement of the movable plane mirror (90) at the first position.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: November 21, 1989
    Assignee: Zygo, Corporation
    Inventor: Carl A. Zanoni
  • Patent number: 4879301
    Abstract: Benzothiazolone Derivatives represented by the formula: ##STR1## in which X is halogen, A is alkylene and R is alkoxy, amino, substituted amino, carboxyalkyl or carboxyalkylene, which are useful as antiallergic or antiinflammatory agents.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: November 7, 1989
    Assignees: Hoei Pharmaceutical Co., Ltd., Research Institute for Production Developement
    Inventors: Suminori Umio, Shizuo Kozasa, Takahiro Yabuuchi
  • Patent number: 4877272
    Abstract: The static seal comprises a semi-rigid annular part (11) shaped as a bead and first and second wings (12, 13) extending transversely with respect to the seal axis and laterally connected to the bead portion (11) in a gradual manner by means of concave surfaces with a large curvature radius. The seal has in its axial cross-section the shape of a V lying on its side, the tapered surfaces (16, 17) of the branches (12, 13) of the V being slightly inclined with respect to the planar surfaces (18, 19) of the bead (11) to which they are attached. The branches (12, 13) of the V forming the wings have an elasticity such that by flexure of said tapered surfaces (16, 17) of the V branches and slight flexure of the bead (11), the extremities of said surface may form with the planar surfaces (18, 19) of the bead (11) to which they are attached two sealing regions. Said seal is intended to be used in severe conditions of temperature, pressure, vibrations and chemical attack.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: October 31, 1989
    Assignee: Societe Anonyme: Societe Europeene De Propulsion
    Inventors: Marc Chevallier, Guy Froger
  • Patent number: 4877617
    Abstract: A fungicidal and bactericidal method of imparting fungicidal and bactericidal properties to an article by coating or impregnating the article with a solution of a quaternary ammonium salt of alginic acid or carboxymethyl cellulose (which is insoluble or sparingly soluble in water) in an organic solvent and thereafter removing the solvent from the article.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: October 31, 1989
    Assignee: Daicel Chemical Industries Ltd.
    Inventors: Hajime Namikoshi, Tatsuo Goto
  • Patent number: 4876013
    Abstract: An improved method and apparatus for filtration includes an outer stationary body, an inner rotating body defining a gap with the outer body for receiving a fluid sample, the surface of one of the bodies defining the gap being a filter. The rotation of the inner body creates Taylor vortices which continuously displace occluded solute on the filter surface. The filter can be a membrane. In one embodiment the device may be used to filter very small volumes of fluid such as are handled in clinical and other laboratories.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: October 24, 1989
    Assignee: Membrex Incorporated
    Inventors: Iosif Shmidt, Mario Badiali
  • Patent number: 4875729
    Abstract: Apparatus (including a frame and a bag), a preferred bag, and a method for packaging waste for disposal are disclosed. The frame fits into the bag at the open end of the bag. The frame has a central open area, and when waste material is placed on the outside of the bag corresponding to the open area of the frame, the waste material and the adjacent portion of the bag are pulled by gravity down through the open area of the frame. That pulls the bag tightly around the frame, which in turn facilitates the inversion of the bag as the bag is removed from the frame. Inversion of the bag results in the waste being trapped inside the bag, which may then be securely closed for disposal of the waste. The sizes and shapes of the frame and bag are not critical. The device finds particular use as a so-called "pooper scooper" for dogs.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: October 24, 1989
    Inventor: Joel S. Peck
  • Patent number: 4874501
    Abstract: An electrochemical measuring electrode device (10) for polarographically measuring the partial pressure of oxygen in an electrolytic medium comprises a cathode (14) which is capable of reducing oxygen and defines an exposed oxygen-reducing cathode surface (20), an anode (18), which defines an exposed anode surface which is arranged relative to the exposed oxygen-reducing cathode surface so as to communicate electrolytically therewith through the electrolytic medium, and a membrane (24), which covers the exposed oxygen-reducing cathode surface and further defines an electrolyte chamber (22) in which the electrolytic medium is confined. In order to effectively promote the decomposition of H.sub.2 O.sub.2 generated in the electrolytic medium as an oxygen reduction intermediate and thereby reduce the response time of the electrode, a stable, non-biological catalytic means is provided catalytically communicating with the H.sub.2 O.sub.2.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: October 17, 1989
    Assignee: Radiometer A/S
    Inventors: Torben F. Christiansen, Finn Kokholm
  • Patent number: 4873081
    Abstract: A percutaneous absorption preparation which comprises calcium salt of an acidic anti-inflammatory or analgesic drug having carboxyl group as the active ingredient and present in an amount of 0.3-10% by weight; a medium for the active ingredient which is selected form the group consisting of an ethylene glycol mono-lower alkyl ether, propylene glycol, polyethylene glycol and dimethylsulfoxide, the medium being present in an amount at least sufficient to dissolve the active ingredient; an absorption promotor selected from the group consisting of 1-dodecylazacycloheptan-2-one, hexamethylenelauramide, N-methyl-2-pyrrolidone, a sucrose aliphatic acid ester, dimethylsulfoxide and a nonionic surfactant and present in an amount of 0.5-10% by weight; and the remaining being other reagents and/or carriers required for a desired form of the preparation.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: October 10, 1989
    Assignee: Maraho Co., Ltd.
    Inventor: Taro Ogiso
  • Patent number: 4869593
    Abstract: In accordance with several embodiments of the instant invention, an interferometric profiler is provided which is capable of measuring accurately the topography of a test surface comprising a light source with high spatial and temporal coherence, a rotating diffuser disc, onto which light from said source impinges to form a second extended light source having greatly reduced spatial coherence while retaining high temporal coherence; a first lens and beamsplitter assembly, most preferably a polarizing beamsplitter and quarter-wave phase retardation plate, to collect a direct, preferably without significant light loss, a light beam produced from the light from said extended second light source; a second lens for focusing said light beam onto test and reference surfaces; a two-beam interferometer which divides said light beam into test wavefronts and reference wavefronts and directs said test wavefronts and reference wavefronts onto said test and reference surfaces; and a piezoelectric transducer, for varying th
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: September 26, 1989
    Assignee: Zygo Corporation
    Inventor: James F. Biegen
  • Patent number: 4867797
    Abstract: Subtilisin or subtilisin-like enzymes are used in rinse solutions for apparatus analyzing protein-containing biological liquids, such as blood analysis apparatus, to obviate measuring errors ascribable to protein deposits. A preferred rinse solution contains subtilisin, a borate buffer, and germicides.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: September 19, 1989
    Assignee: Radiometer A/S
    Inventors: Holger B. Thomasen, Anne R. Eisenhardt
  • Patent number: 4867276
    Abstract: A fast-lowering hydraulic equipment is described, fully automatic (10) which includes a box (11) with two chambers (12, 13) separated by a partition wall (14) where a central supporting shaft (19) is arranged. A chain (42), rope (71) or steel cable (66) with safety belt (80, 85) working on a pulley (30 or 72) or spool (65), drives a gear device (34, 35, 39, 40), amplifying the rotation at the central shaft (19) which, in its opposite end presents a propeller with blades (24) submerged in the oil chamber (12), retarding thus the lowering speed.The hydraulic equipment in reference is adequate to be used in rescuing, maintenance or other jobs at any height, at the facade of buildings or similar situations, and may be stored in a sealed deposit box (140) for equipment protection, attached to the wall at strategic sites, propitiating higher safety in tall buildings and constructions.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: September 19, 1989
    Inventor: Paulo A. Tamietti
  • Patent number: 4867878
    Abstract: A liquid bearing for use in rotary devices processing biological fluids is disclosed. The device has a stationary housing and a rotating cartridge. One end of the cartridge is rotatably connected to the housing. The other end is not directly connected to the housing, and, thus, is free to move laterally during rotation. The liquid bearing tends to recenter the free end of the cartridge during rotation.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: September 19, 1989
    Assignee: Membrex, Inc.
    Inventor: Michael S. Rashev