baber/WOPTO huggingface dataset:
Patent CA-2012503-C (CA)
Title: Compounds containing both uv-absorber and 1-hydrocarbyloxy hindered amine moieties and stabilized compositions
Inventor: RAVICHANDRAN RAMANATHAN
IPC: C08K5/16
Filed: 1990-03-19
Granted: 2000-01-18
Abstract: Compounds containing both a UV-absorbing moiety and a 1-hydrocarbyloxy hindered amine moiety are effective stabilizers for protecting polymer compositions against the deleterious effects of actinic light. The UV-absorbing moieties include the substituted 2H-benzotriazoles, s-triazines, acrylates, benzophenones, oxanilides and oxamides. The compounds have one of the formulas I to VI   (see above formulas) (see above formulas) wherein R1 is hydrogen, halogen, alkyl of 1 to 12 carbon atoms or aralkyl of 7 to 15 carbon atoms, wherein R1 is a group such as C1-C12 alkyl, R and R2 are independently groups such as H and C1-C12 alkyl, R3 and R4 are independently groups such as C1-C4 alkyl, X is a group such as COO-, R5 is H or OH, G1, G2, G3, G4, G5 and G6 are each groups such as H and C1-C12 alkyl, G7 is a group such as H or phenyl, G8 is a group such as cyano, and T1 to T3 are independently groups such as C1-C12 alkyl.
Patent CA-2014661-C (CA)
Inventor: RAGHAVAN KRISHNAN
IPC: H01Q5/47
Filed: 1990-04-17
Granted: 1994-09-20
Abstract: NESTED HORN RADIATOR ASSEMBLY                ABSTRACT OF THE DISCLOSURE          A horn radiator assembly includes two horn radiators each of which is formed as a conical horn and a waveguide of constant cross section connected to the small end of the horn as a feed and providing a signal port.  The first of the horn radiators is of relatively large cross section and  serves  to  radiate  electromagnetic  waves  at  a relatively  low  frequency.   The  second  of  the  horn radiators is of relatively small cross section and serves to radiate electromagnetic waves at a relatively high frequency.   The  second radiator  is nested within  the first radiator,  and  is  positioned with  its  radiating aperture coplanar with the  radiating aperture  of the first radiator.   In the second radiator,  the waveguide feed is provided with a bend allowing the waveguide feed to pass through a wall of the first radiator.  A strut may be affixed to the bend to provide a symmetrical transverse support within the  first radiator  for  the second   radiator.    A   doubly-tapered   electrically conductive sheet extends from an apex within the throat of the first radiator horn to the transverse support, and from there tapers back to contact the horn of the second radiator.    The  tapered  sheet  guides   low-frequency radiation  past  the  strut  and  the  bend  to   minimize standing wave ratio.
Patent CA-2022495-C (CA)
Title: Nozzle means for rotary drill bits
Inventor: IVIE CRAIG R
IPC: E21B10/18
Filed: 1990-08-01
Granted: 1997-09-30
Abstract: A rotary drill bit (10) has fluid discharge nozzles (36A, 36B, 36C) positioned between adjacent pairs of roller cutters (20A, 20B, 20C). A fluid discharge nozzle (36A) provides a stream of drilling fluid (44) toward an adjacent roller cutter (20A) inclined radially outwardly toward the side wall (34) of the bore hole (30) and slanted toward the roller cutter (20A) for first striking the side wall (34), and then sweeping inwardly across the bore hole bottom  (32)  in a flat high velocity stream tangential to bit rotation and beneath the cutting elements  (26)  during cutting engagement of the gage row (28D) with the formation.
Patent CA-2026906-C (CA)
Title: Oral compositions
Inventor: CUMMINS DIANE
IPC: A61Q11/00
Filed: 1990-10-04
Granted: 1996-10-22
Abstract: Oral compositions such as dentifrices with an improved anti-plaque efficacy are obtained by inclusion therein of a mixture of a stannous salt such as stannousfluoride or stannouspyrophosphate and a zinc salt such as zinc citrate.
Patent CA-2026936-C (CA)
Title: Three-toroid electrodeless conductivity cell
Inventor: REESE PHILIP C
IPC: G01R27/22
Filed: 1990-10-04
Granted: 1994-10-04
Abstract: An electrodeless conductivity measuring cell having three toroids.  In one arrangement, the three toroids are stacked together wherein the center toroid is used for sensing and the two outer toroids are the drive toroids. Alternatively, the center toroid may be used as the drive coil and the outer toroids used as sense coils.  Washer-shaped, grounded discs are placed between the outer toroids and the center toroid to provide for improved noise rejection.  A method of validating the fluid conductivity measurement of such a measuring cell.  The fluid conductivity is measured with a three-cell configuration, and then it is measured with a two-cell configuration.  If the conductivity is observed to be the same, the cells are likely functioning normally.  If fluid leaks into the cell cavity, the measurement of conductivity will change.
Patent CA-2031071-C (CA)
Title: Multi-sprinkler controller
Inventor: WANG PO H
IPC: A01G25/16
Filed: 1990-11-29
Granted: 1994-11-08
Abstract: TITLE: MULTI-SPRINKLER CONTROLLER          ABSTRACT OF THE DISCLOSURE    A multi-sprinkler controller includes a timer-activated motor which drives a rotor disc.  The rotor disc operates the opening and closing of several water passages through which water is supplied to the various sprinklers which make up a sprinkler system.
Patent CA-2037650-C (CA)
Title: Open breech hot launched fiber optic payout system
Inventor: PETERSON STANLEY P D
IPC: F41F3/00
Filed: 1991-03-06
Granted: 1996-07-09
Abstract: An optical fiber (18) payout system for a missile (10) which is to be hot-launched from a tube t12) reinforces that part of the fiber to be exposed to propulsion gases by juxtaposing with one or more wires (24) and encasing within a thermally protective sheath (22) forming a so-called leader (20).  The leader (20) extends outwardly of the missile aft end (16) and is releasably secured within a rail assembly (32) by a flexible strip (46) having a line of perforations (48) extending along its longitudinal axis.  The outer end portion of the leader (20) is secured to an anchor block (52).  On launch, the leader (20) tears loose from the flexible strip (46), the restraining action of which prevents optical fiber predispensing.
Patent CA-2037687-C (CA)
Title: 7-(diphenylmethyl)oxy-9a-methoxymitosane and making and use thereof
Inventor: BENIGNI DANIEL A
IPC: A61K31/407
Filed: 1991-03-06
Granted: 2001-10-30
Abstract: 7-(Diphenylmethyl)oxy-9a-methoxymitosane is a novel intermediate for conversion into 7-amino and 7-oxy-9a-methoxymitosanes and is also useful for inhibiting mammalian tumor growth. The compound is prepared by reacting 7-hydroxy-9a-methoxymitosane with diazodiphenylmethane. In a preferred reaction, the compound is prepared from mitomycin C via 7-hydroxy-9a-methoxymitosane without drying (water removal). The intermediate is advantageously converted to the very effective anti-tumor agent 7-[2-(4-nitrophenyldithio)ethylamino]-9a-methoxymitosane in unexpectedly high yields using a two step process where the first step constitutes conversion to 7-[2-(2-pyridyldithio)ethylamino]-9a-methoxymitosane or 7-[2-(3-vitro-2-pyridyldithio)ethylamino]-9a-methoxymitosane.
Patent CA-2044981-C (CA)
Inventor: HESS RAYMOND
IPC: B01D3/36
Filed: 1991-06-19
Granted: 1999-05-04
Abstract: Ce procédé de purification par distillation du (méth)acrylate de glycidyle contenant des impuretés légères et des impuretés lourdes, est caractérisé par le fait que : dans une première étape, on conduit une distillation du (méth)acrylate de glycidyle à purifier en présence d'un premier solvant capable de former un hétéroazéotrope à bas point d'ébullition avec les impuretés légères et l'épichlorhydrine, de façon à obtenir une fraction de tête qui est constituée par un hétéroazéotrope solvant-produits légers ; et dans une deuxième étape, on soumet le (méth)acrylate de glycidyle ainsi débarrassé des produits légers à une distillation en présence d'un second solvant capable de former un hétéroazéotrope à bas point d'ébullition avec le (méth)acrylate de glycidyle, de façon à obtenir une fraction de tête constituée par le (méth)acrylate de glycidyle pur recherché, ainsi débarrassé des impuretés lourdes, lesdits solvants étant, au cours de ces deux distillations, présents. dans toute la zone de distillation, y compris le bouilleur.
Patent CA-2047148-C (CA)
Inventor: MUELLER WALTER B
IPC: B65D65/40
Filed: 1991-07-16
Granted: 2000-07-04
Abstract: An impact resistant film suitable for making medical solution pouches generally includes an interior layer of a polyolefin such as an ethylene vinyl acetate copolymer, ethylene methyl acrylate copolymer, very low density polyethylene or blends thereof; and outer layers of a high melt flow propylene homopolymer or copolymer. At least one of the outer layers also includes an elastomer such as a styrene ethylene butylene styrene copolymer. A flexible copolyester can be substituted for one of the outer high melt flow polymer layers. Additional interior layers can also be incorporated in the film structure.
Patent CA-2056636-C (CA)
Title: Guard holograms
Inventor: MOSS GAYLORD E
IPC: G02B27/00
Filed: 1991-11-29
Granted: 1995-12-05
Abstract: A head-up display for a vehicle, including a primary image  reflection  hologram  supported  by  a  transparent substrate located in the vehicle operator's field of view for the ambient scene in front of the vehicle, a light source for providing playback illumination to the primary image hologram,  and a guard hologram in front of the primary image hologram for substantially reflecting ambient illumination that otherwise could spuriously turn on the first reflection hologram, the guard hologram having an angular bandwidth and a spectral bandwidth that are greater than the angular bandwidth and the spectral bandwidth of the primary image hologram, and having an optical density of 2.0 or greater. The guard hologram can be parallel fringe reflection hologram or a slant fringe reflection hologram.
Patent CA-2057822-C (CA)
Title: Water treatment agent
Inventor: DAVIS KEITH PHILIP
IPC: C07F9/40
Filed: 1991-12-17
Granted: 1998-04-21
Abstract: Unsaturated compounds which can be dissolved in aqueous based solvents, such as ethylenic or acetylenic carboxylate or alcohols with less than 10 carbon atoms, especially maleic and/or acrylic acid or propargyl alcohol, are reacted with alkali metal phosphite in aqueous solution at neutral or alkaline pH in the presence of free radical initiators such as persulphate to form threshold scale and corrosion inhibitors.
Patent CA-2060773-C (CA)
Inventor: LABRUYERE GILLES
IPC: F16H1/28
Filed: 1992-02-06
Granted: 1996-07-16
Abstract: Ce dispositif (18) comporte: une première couronne de liaison (20) reliée à la charge utile; une seconde couronne de liaison (22) reliée à la structure; une paire de roulements annulaires (38, 40) pour le guidage en rotation de la première couronne de liaison (20) par rapport à la seconde couronne de liaison (22); un moteur annulaire (58) dont le stator (60) est fixé à l'une (22) des deux couronnes de liaison et dont le rotor (62) entrame l'autre couronne de liaison (20) en rotation par l'intermédiaire d'un réducteur; et un réducteur du type à train épicycloïdal différentiel agencé à l'intélieur de la paire de roulements annulaires (38, 40).
Patent CA-2065343-C (CA)
Title: Process for disinfecting hard surfaces with chlorine dioxide
Inventor: SCHROEDER KARL-HEINZ
IPC: B65B55/04
Filed: 1990-08-21
Granted: 1999-10-05
Abstract: Method for disinfecting hard surfaces by treating the hard surfaces with an aqueous composition containing from 2 to 40% by weight of sodium chlorite and from 1 to 60% by weight of a sequestering agent and/or complexing agent. The composition generates chlorine dioxide in situ and also acts as a water hardness stabilizer and corrosion inhibitor.
Patent CA-2067050-C (CA)
Title: Office panel with lay-in communication cable capability
Inventor: LEVITAN STEPHEN L
IPC: E04B2/74
Filed: 1992-04-24
Granted: 2001-01-23
Abstract: An office panelling system is disclosed which readily accommodates the initial or retrofit of communication cables and the like cables which generally do not require an electrical conduit. The individual panels of the system have a metal framework to which decorative covers are secured. The framework and covers have been adapted to define a passageway along the panel which is accessible by removing of the covers. With this arrangement, communication cables may be installed without stringing of the cables through ports in the framework.
Patent CA-2067161-C (CA)
Inventor: BUNKE PAUL RALPH
IPC: B65D85/50
Filed: 1990-11-26
Granted: 1998-01-06
Abstract: Emballage micro-ondes pour aliments (30), conçu pour réchauffer au four à micro-ondes un certain nombre de portions d'aliments (33) disposées sur au moins deux niveaux et pour rendre les surfaces externes des aliments (33) croustillantes et dorées. L'emballage (30) comprend des capteurs d'énergie micro-ondes (32, 36) qui transmettent la chaleur qu'ils génèrent aux surfaces opposées des portions d'aliments (33) disposées dans l'emballage (30). L'emballage type peut être constitué, par exemple, d'une enveloppe en carton jetable (31), d'un capteur d'énergie micro-ondes supérieur (36), d'un capteur d'énergie micro-ondes inférieur et d'un capteur d'énergie micro-ondes situé à un niveau intermédiaire (32) et entre deux couches d'aliments superposés (33) afin que les faces opposées de chacunes des portions d'aliments (33) se situent près des capteurs d'énergie micro-ondes (32, 36) et que les aliments soient, de préférence, en contact avec les capteurs d'énergie micro-ondes (32, 36) de sorte que la chaleur puisse être transférée aux aliments, par conduction.
Patent CA-2068938-C (CA)
Title: Preparation of addition polymerization catalysts
Inventor: DEVORE DAVID D
IPC: C08F4/74
Filed: 1992-05-19
Granted: 2003-01-07
Abstract: Metal complexes useful as components of addition polymerization catalysts are prepared by oxidizing Group 3-10 or Lanthanide metal containing complexes using an organic halide oxidizing agent.
Patent CA-2075042-C (CA)
Title: Manipulation of solid, semi-solid or liquid materials
Inventor: PETHIG RONALD
IPC: G01N33/53
Filed: 1991-01-29
Granted: 2001-05-01
Abstract: By applying two or mare electrical fields (DC; AC, pulsed) of different characteristics to an electrode array on e.g. the wall of a treatment cell, particles suspended in liquid in the cell may be manipulated as desired on a microscopic scale, in particular by exploiting the dielectrophoretic properties of the particles. The particl es may be solid, semi-solid or liquid, and may be of simple materials or may be biological particles such as whole cells or fragments thereof.
Patent CA-2075964-C (CA)
Title: Equipment for recovery of liquid tank cargo from a vessel
Inventor: AMUNDSEN VIGGO
IPC: E02B15/00
Filed: 1991-02-18
Granted: 1997-10-14
Abstract: Equipment for recovery of liquid tank cargo from a seagoing vessel, in order to stop a leakage, comprising a container (3) of fabric which can be packed together for stand-by storing and which can be placed in the sea in order to receive at least some of the tank contents, by pumping it through at least one hose (4) which is connected or permanently coupled to the container.
Patent CA-2077625-C (CA)
Title: Preparation process of hydrocortisone and novel intermediates
Inventor: BRION FRANCIS
IPC: C07J33/00
Filed: 1992-09-04
Granted: 2003-10-28
Abstract: The subject of the invention is a process for the preparation of the hydrocortisone (I): 
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 from the halohydrin (II): 
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 where X is a halogen, as well as intermediate compounds.
Patent CA-2082211-C (CA)
Title: Degreasing solution and degreasing method
Inventor: ISHIDA MINORU
IPC: C23G1/14
Filed: 1992-11-05
Granted: 1996-12-10
Abstract: The  present  invention  is  directed  to  a  method  for degreasing a metal selected from the group consisting of iron, zinc, aluminum, and alloys containing at least two of these metals,  said method  comprising  bringing  a  phosphate-free degreasing solution in contact with said metal to be processed under a temperature in the range of 20 - 60°C for a time in a range of 1 to 30 minutes, wherein said degreasing solution contains an alkali silicate, a water-soluble polycarboxylate and a nonionic surfactant and satisfies the following (1), (2), (3) and (4) conditions:   (1) the pH value of the degreasing solution is 10.5 to 12.5; (2) the concentration of said alkali silicate is 100 ppm or more calculated as Si concentration and satisfactory for the following (a) equation: log10Y  0.318X + 2.72              (a) wherein Y denotes the concentration of said alkali silicate calculated as Si concentration by a ppm unit, X = pH - 10.5, and this pH denotes the pH value of the degreasing solution;   (3) the concentration of said water-soluble polycarboxylate is in  a  range  of  from  0.01  to  10  g/liter;  and  (4)  the concentration of said nonionic surfactant is in a range of from 0.01 to 10 g/litre, and after bringing said metal into contact with the phosphate-free degreasing solution, replenishing said alkali silicate, said water-soluble polycarboxylate and said nonionic  surfactant and adding a  caustic  alkali  to  said degreasing solution to maintain the above (1), (2), (3) and (4) conditions for further use with subsequent metals.   Metals treated  by  the  method  of  the  present  invention  exhibit excellent conversion coating performance.
Patent CA-2082471-C (CA)
Title: Hydronic heating water temperature control valve
Inventor: FIEDRICH JOACHIM
IPC: G05D23/13
Filed: 1992-11-09
Granted: 1999-06-15
Abstract: In a three-way, variable position, automatically controlled diverting valve that is provided in the return line to the boiler of a hydronic heating system between the heating loop return and the boiler return, the valve having its input from the heating loop return, its through output to the boiler return and its diverted output to the heating loop supply, so that the valve diverts some of the cooler return water to the boiler hot supply water, diluting the supply water to reduce the temperature of supply water that feeds the heating loop, a method and means of adapting the diverting valve so that the valve cannot be positioned so that the diverted water flow therefrom is closed, including a stop plug inserted into a housing of the valve that reduces the range of said variable positioning.
Patent CA-2082505-C (CA)
Title: Method of treating alopecia
Inventor: PIERARD GERALD E
IPC: A61Q7/00
Filed: 1991-06-19
Granted: 2002-01-01
Abstract: Method of treating individuals with alopecia or having inferior quality hair, by administering to the scalp of said individu-als an effective amount of ketoconazole. Novel compositions comprising as an active ingredient ketoconazole and an inert carri-er.
Patent CA-2082936-C (CA)
Title: Fluorescent porphyrin, and fluorescent phthalocyanine-polyethylene glycol, polyol, and saccharide derivatives as fluorescent probes
Inventor: ARRHENIUS PETER O G
IPC: G01N33/58
Filed: 1991-05-15
Granted: 2003-09-23
Abstract: Marker components are provided which are compatible with aqueous solutions, exhibit favorable fluorescence propert-ies and exhibit decreased non-specific binding to macromole-cules in solution. These marker components are useful in appli-cations such as fluorescence immunoassays, in vivo imaging and in vivo tumor therapy.
Patent CA-2083626-C (CA)
Inventor: OVERHOFF DIETRICH
IPC: B60C11/04
Filed: 1992-11-24
Granted: 1998-11-10
Abstract: A tread pattern for a vehicle tire has at least one circumferential longitudinal groove as well as transverse grooves starting from the longitudinal groove and defining tread blocks between the transverse grooves limiting the longitudinal groove laterally.  In order to improve the transmission of driving and braking forces, the tread blocks each have a projection along the longitudinal groove at the center of the sidewalls of the tread blocks, extending from the tread surface to the bottom of the longitudinal groove.
Patent CA-2084465-C (CA)
Title: Dispensing package
Inventor: BROWN PAUL E
IPC: B65D33/38
Filed: 1992-12-03
Granted: 2000-05-02
Abstract: DISPENSING PACKAGE               ABSTRACT OF THE DISCLOSURE A dispensing package is provided for fluid products such as liquid soaps, shampoos and conditioners, household detergents, cleaners, polishes, moisturizing creams, and the like, and includes a container with a self-sealing dispensing valve mounted therein.  The valve includes a marginal flange, a valve head with a discharge orifice therein, and a connector sleeve having one end connected with the valve flange and the opposite end connected with the valve head adjacent a marginal edge thereof.  The connector sleeve has a resiliently flexible construction, such that when pressure within the container raises above a predetermined amount, the valve head shifts outwardly in a manner which causes the connector sleeve to double over and extend rollingly.
Patent CA-2092482-C (CA)
Title: Multistage switching facility for optical signals
Inventor: EILENBERGER GERT
IPC: H04Q11/00
Filed: 1993-03-25
Granted: 2001-01-09
Abstract: A multistage switching facility for optical signals where time conversions are only used in the last stage while only space and frequency conversions are used in the other stages. The last stage contains space, time and frequency position converters resulting in a facility in which no signal overtaking is possible when multiple routing is provided in the switching facility.
Patent CA-2094151-C (CA)
Title: Non-interfering color viewing system using spectral multiplexing
IPC: G02B27/00
Filed: 1992-07-31
Granted: 1998-07-28
Abstract: A viewing system operative to provide non-interfering color displays to two or more viewers disposed within a catadioptric projection display system. The non-interfering viewing system includes a projector subsystem 10 for generating a first image with radiant energy from a first set of color wavelengths and for generating a second image with radiant energy from a second set of color wavelengths. The first and second sets of wavelengths are spectrally multiplexed so as to include first and second red, blue and green wavelengths, respectively. A visor 32 is worn by a first viewer and includes a first triple notch filter. The first triple notch filter is adapted to transmit radiant energy of wavelengths included within the first set to the first viewer and to reject incident radiant energy of wavelengths included within the second set. A second visor 32 is worn by a second viewer and includes a second triple notch filter. The second triple notch filter is adapted to transmit radiant energy of wavelengths within the second set to the second viewer and to reject incident radiant energy of wavelengths within the first set.
Patent CA-2097913-C (CA)
Inventor: ARNOLD KRISTIN ANNE
IPC: A01N37/06
Filed: 1991-12-20
Granted: 2002-08-20
Abstract: This invention relates to a novel aqueous agriculturally acceptable formulation, a process used to prepare it and a pesticid-al method of using it in application to plants or weeds to kill or control plants or weeds. The formulation comprises an effective amount of N-phosphonomethylglycine or an agriculturally acceptable salt of N-phosphonomethylglycine and an effective amount of at least one C5 to C16 or preferably a C8 to C12 agriculturally acceptable fatty acid itself or in the form of an agri-culturally acceptable water soluble salt or mixtures thereof. Other ingredients are optional, including surfactant(s), anti-foam(s) and antimicrobial(s) or other ingredients such as pesticides including herbicides, insecticides and fungicides.