baber/WOPTO huggingface dataset:
Patent CA-2028550-C (CA)
Title: Process for the production of chlorine dioxide
Inventor: ENGSTROEM JOERGEN
IPC: C01D5/02
Filed: 1990-10-25
Granted: 1998-10-27
Abstract: A process  for the  production of chlorine dioxide by reacting in a reaction  vessel  an  alkali  metal chlorate, mineral acid  and a reducing agent in such proportions that chlorine dioxide is produced in a reaction medium  which is maintained at  a temperature  of from  about 50 °C to about 100 °C and at an acidity within a range of  from about  5 N to about  11 N.  The reaction medium is subjected to subatmospheric  pressure  sufficient  for  evaporating  water, a mixture of  chlorine dioxide, oxygen and water vapour being withdrawn from an evaporation zone in  the reaction vessel, and alkali  metal sulfate  being precipitated in a crystallization zone in the reaction vessel. As the reducing agent hydrogen peroxide is used.
Patent CA-2031514-C (CA)
Inventor: PAPRITZ FRANZ
IPC: A61B3/14
Filed: 1990-05-10
Granted: 1999-06-01
Abstract: Dans le boîtier (10) logé entre le changeur de grossissement (7) et le tube oculaire (8) d'un microscope, est monté un miroir orientable (22) qui se trouve normalement en dehors du trajet du faisceau lumineux du microscope, mais qui peut toutefois être tourné et placé sur ce trajet par actionnement d'un levier (17), afin d'amener ce faisceau à traverser un tube photographique (13) d'un appareil photographique (14). Par actionnement du levier (17), l'appareil (14) est déclenché avec le retard nécessaire, pour prendre une image d'un objet, par exemple d'un oeil (4). Dans le boîtier (10) est monté à l'entrée, c'est-à-dire immédiatement à la suite du changeur de grossissement (7), un dispositif à diaphragme (49) qui, également par actionnement du levier (17), peut être amené en une position préalablement choisie pour la prise de vue. On dispose de conditions optimales aussi bien pour l'observation que pour la prise de vue photographique grâce à la pleine disponibilité de la lumière et à la position et la possibilité de réglage avantageuses du diaphragme.
Patent CA-2033254-C (CA)
Title: Reagent and method for determining activity of retroviral protease
Inventor: MARSHALL GARLAND R
IPC: C12Q1/70
Filed: 1990-12-27
Granted: 2001-11-20
Abstract: Novel fluorogenic substrates for retroviral protease, e.g. HIV protease, having the chemical structure X-Thr-Ile-Nle-Phe(Y)-Gln-Arg-NH2 wherein X is a fluorogenic group and Y is an acceptor for the fluorogenic group, and their use in a fluorometric method for the determination of retroviral protease is disclosed.
Patent CA-2036729-C (CA)
Title: Hanging laminated folder
Inventor: HAWES ROBERT E JR
IPC: B42F15/00
Filed: 1991-02-20
Granted: 2001-01-02
Abstract: A hanging folder has reinforcing strips along its top and bottom edges, and color contrasted easy-insert label slots.      These strips and contrasting slots protect against wear to the folder and thus prolong the usefulness of the folder.
Patent CA-2040925-C (CA)
Title: Method of purifying polyunsaturated aliphatic compounds
Inventor: MISAWA YOSHIHISA
IPC: C07C51/487
Filed: 1991-04-22
Granted: 2000-01-25
Abstract: A fatty acid-related polyunsaturated compound can be selectively purified using an industrially operable successive method under moderate conditions.      A highly purified fatty acid-related polyunsaturated compound is obtained by a process comprising steps of forming a complex with silver on account of the high degree of unsaturation of the fatty acid-related polyunsaturated compound, isolating the complex from other fats on account of the hydrophilicity of the complex and then applying dissociating procedures to the complex to obtain the fatty acid-related polyunsaturated compound as a target substance on account of the hydrophobicity of the fatty acid-related polyunsaturated compound. As to the procedures for dissociation, addition of a dissociating agent and reduction of silver are disclosed. As to the dissociating agent, various compounds which produce insoluble composition with silver other than water are disclosed. Furthermore, an apparatus appropriately used to carry out this method is also disclosed.
Patent CA-2045096-C (CA)
Title: Production of high viscosity index lubricants
Inventor: DEGNAN THOMAS F
IPC: C10G67/04
Filed: 1991-06-20
Granted: 2000-08-29
Abstract: Petroleum waxes are converted to high viscosity index lubricants by a hydroisomerization process in which the wax feed is subjected to hydroisomerization over a low acidity zeolite isomerization catalyst which effects a preferential isomerization on the paraffin components in the feed to less waxy, high V.I. isoparaffins. The hydroisomerization is operated at high pressure, at least 1000 psig hydrogen partial pressure (reactor inlet) using a zeolite catalyst, preferably a noble metal containing zeolite beta catalyst which contains boron as a framework component of the zeolite to give a low alpha value, typically below 10. The hydroisomerization is carried out at a 650°F+ conversion in the range of 10 to 40 weight percent of the feed. A final dewaxing step to target pour point may be used with relatively low loss, typically no more than 15 weight percent, during this dewaxing. The final products typically have V.I. values in excess of 125 and usually in the range of 140 to 155 and are characterized by exceptional stability.
Patent CA-2045358-C (CA)
Inventor: KOBAYASHI MASAO
IPC: A61K9/54
Filed: 1991-06-25
Granted: 1998-04-28
Abstract: Préparation pharmaceutique à libération lente comprenant un noyau contenant un composé médicinal et un enrobage contenant un sel hydrofuge et un polymère acrylique non soluble dans l'eau et légèrement perméable à l'eau comportant un groupement triméthylammoniuméthyl. La préparation en question libère un composé médicinal selon un modèle de dissolution sigmoïde sans égard au pH du milieu de dissolution.
Patent CA-2053976-C (CA)
Title: Refrigeration apparatus and method of refrigeration
Inventor: BRODERDORF WALTER CHARLES
IPC: F25D3/12
Filed: 1991-10-22
Granted: 1997-04-29
Abstract: Refrigeration apparatus for cooling or freezing products such as protein materials includes a drum through which heat transfer fluid is circulated. A belt is wrapped around part of the drum surface and the product to be refrigerated is applied to the drum surface, being pressed thereagainst by the belt. Either liquid or triple point carbon dioxide is circulated through the drum to cool the product in contact therewith.  A blanket of carbon dioxide snow may be applied to the belt to increase the cooling rate.  Other heat transfer fluids such as D-Limonene may also be circulated through the drum.  A tank and related apparatus for cooling the D-Limonene fluid is also disclosed.
Patent CA-2054618-C (CA)
Title: Pigment and process for producing the same
Inventor: ITOH HIROSHI
IPC: C23C14/34
Filed: 1991-10-31
Granted: 1995-08-29
Abstract: Disclosed are a pigment,  a production process therefor, a process for improving its weather resistance, and a metallic paint made therefrom.  The pigment includes a transparent or semi-transparent scaly substrate, a TiO2 layer coated on an entire surface of the substrate, light absorbing portions formed on a surface of the TiO2 layer in a scattering manner and having a metallic glossy effect resulting from the glossy portions,  strong interference colors resulting from the TiO2 layer and substance colors resulting  from the light absorbing portions,  and it exhibits a great covering power.  Such an excellent pigment can be obtained by the production process  in which sputtering is carried out onto a conventional pearl mica pigment, and its weather resistance can be improved by the production process in which chromium (III) hydroxide is repeatedly coated on a conventional pearl mica pigment before and after the sputtering.  When the metallic paint is made from the pigment,  it naturally has the metallic glossy effect,  the  strong  interference colors,  the substance colors and the great covering power all of which result from the pigment and is suitable for an automobnile top coat paint.
Patent CA-2055729-C (CA)
Title: Process for the preparation of indigo compounds
Inventor: YAMAMOTO YOSHIHIRO
IPC: C09B7/02
Filed: 1991-11-18
Granted: 1995-06-20
Abstract: An indigo compound is prepared from a correspond-ing indole compound which is unsubstituted at the 2-and 3- positions.  The indole compound and an organic hydroperoxide are reacted in the presence of a catalyst which is a metal selected from the group consisting of the metals of Groups 4, 5 and 6 of the periodic table or a compound of the metal.  The reaction is conducted while taking out water from a reaction system,  the water being that introduced in the reaction system or formed during the reaction, or while controlling the amount of water, which is introduced in the reaction system, at a level not greater than 1 mole per mole of the indole compound.
Patent CA-2056496-C (CA)
Title: Ball conveying game apparatus
Inventor: KASHIMOTO KIYOSHI
IPC: A63F9/00
Filed: 1991-11-28
Granted: 1996-09-17
Abstract: A ball conveying game apparatus including a plurality of ball support portions provided on a vertical game board surface, a protrusible and retractable plunger provided at at least one of the ball support members, and a manual operating member such as a pressing member linked on an operational basis to the ball support member through a predetermined interlocking mechanism so that a ball can be transferred from one to another of the ball support members along a ball moving course by operating the manual operating member. The ball is conveyed from a starting point to a goal point by a plurality of choosable ball moving courses arranged in the ball moving course. Selection from among the choosable ball moving courses is made by operating the manual operating member. In playing the ball conveying game apparatus, therefore, a player is required to dexterously manipulate the manual operating member. Various ways of playing are possible.
Patent CA-2059372-C (CA)
Title: Femoral component for a knee joint prosthesis having a modular cam and stem
Inventor: HOUSTON MICHELLE LYNNE
IPC: A61F2/38
Filed: 1992-01-15
Granted: 2003-12-23
Abstract: A femoral component for a knee joint prosthesis having a modular cam which may be connected intraoperatively to provide posterior tibial subluxation resistance when the posterior cruciate ligament is sacrificed. The cam includes protrusions which engage with notches on the stem base to prevent rotation of the cam during use. A stem extension is connected to the stem base for clamping engagement of the cam body therebetween. A transverse opening may be formed in the stem base for providing access to the stem extension threads. The threads may then be malformed to prevent rotation of the stem extension relative to the extension.
Patent CA-2065644-C (CA)
Title: Pyrazolopyridine compound and processes for preparation thereof
Inventor: SHIOKAWA YOUICHI
IPC: A61P19/06
Filed: 1992-04-09
Granted: 2002-12-03
Abstract: There are described pyrazolopyridine compounds of the formula:   (see formula I) wherein R1 is aryl, R2 is acyl(lower)alkyl, and A is lower alkenylene, and pharmaceutically acceptable salts thereof.  The preparation of these compounds, pharmaceutical compositions containing same and their medical uses are also described.  These compounds are useful for the treatment of melancholia heart failure, hypertension, renal insufficiency, renal toxicity nephrosis, nephritis, edema, obesity, bronchial asthma, gout, hyperuricemia, sudden infant death syndrome, immunosuppression, diabetes, myocardiac infarction, thrombosis, obstruction, arteriosclerosis obliterans, thrombophlebits, cerebral infarction, transient ischemic attack or angina pectoris.
Patent CA-2071795-C (CA)
Title: Latent images comprising phase shifted micro printing
Inventor: MERRY TREVOR
IPC: B41M3/14
Filed: 1992-06-22
Granted: 1996-08-06
Abstract: A security device comprising a substrate having applied thereto an array of characters,  the characters  being of a sufficiently small size as to appear uniform when ordinarily viewed but individually identifiable when viewed with the aid of appropriate  magnification  means,  whereby  group(s)  of  the characters are phase-shifted relative to the others in such a manner as to collectively define an image,  the  image being relatively indiscernible when the device is ordinarily viewed but discernible when viewed with the aid of a finding screen.
Patent CA-2075439-C (CA)
Title: Method and apparatus for determining horizontal conductivity and vertical conductivity of earth formations
Inventor: ROSTHAL RICHARD A
IPC: G01V3/28
Filed: 1992-08-06
Granted: 1997-11-18
Abstract: The disclosed technique and apparatus utilizes the different characteristic responses of a plurality of signals from a propagation or induction well logging device to determine the vertical and horizontal resistivity of formations surrounding a borehole.  In a disclosed embodiment, a method is set forth for determining the horizontal conductivity and the vertical conductivity of formations surrounding an earth borehole, including the following steps: a) deriving first and second formation conductivity values from measurements taken in the borehole; b) selecting a horizontal conductivity model value and a vertical conductivity model value, c) computing error values from the differences between: (i) first and second composite conductivity values computed as a function of the horizontal and vertical conductivity model values, and (ii) the first and second derived formation conductivity values; d) modifying the horizontal and vertical conductivity model values; e) repeating steps (c) and (d) until predetermined criteria of the error values are met; and f) outputting modified horizontal and vertical conductivity model values.
Patent CA-2077067-C (CA)
Inventor: MAES PIETER J A
IPC: B01J20/34
Filed: 1992-08-27
Granted: 1997-03-04
Abstract: The present invention relates to a process for the regeneration of spent bleaching earth, comprising an oxidative heat treatment in  which  the   amount   of   oxygen   supplied   exceeds   the stoichiometrical  requirement  of  complete  oxidation  of  all organics present in the spent bleaching earth, wherein the spent bleaching earth and the oxygen are blown through a stationary fluidized  bed  of  inert  granulate  material.  The  stationary fluidized should be as high as to limit the temperature in the freeboard to less than 1000°C. As a matter of fact, it has been found that, if the fluidized bed is not high enough, the oxygen required to burn off the organics content of the spent bleaching earth would blow out the powdered bleaching earth from the bed at the stage of incomplete oxidation of the organics present on the earth, resulting in an uncontrolled temperature rise in the freeboard and local overheating of the bleaching earth.
Patent CA-2082364-C (CA)
Title: Method of making polyurethane foam
Inventor: CHEONG CATHERINE L
IPC: C08G18/48
Filed: 1992-11-06
Granted: 2003-08-19
Abstract: A polyurethane foam suitable for use as a wound-contact layer in a wound dressing is made by mixing 1 part by weight of an isocyanate-capped prepolymer having from 0.5 to 1.2 meq NCO groups/g with from 0.4 to 1.0 parts by weight of water in the presence of from 0.05 to 0.4 parts by weight of a C1 to C3 monohydric alcohol, and then drying the product.      The monohydric alcohol is preferably methanol, and the isocyanate-capped prepolymer is preferably an isocyanate-capped ethyleneoxy/propyleneoxy copolymer.
Patent CA-2085605-C (CA)
Title: Stimulation of hair growth with potassium channel openers and 5alpha-reductase inhibitors
Inventor: DIANI ARTHUR ROBERT
IPC: A61K8/92
Filed: 1991-07-29
Granted: 2003-03-11
Abstract: An improved method and composition for promoting hair growth in mammals for treating various forms of alopecia or male pattern baldness comprising the concomitant administration of potassium channel openers, such as minoxidil, cromakalim, pinacidil, or a compound selected from the classes of s-triazine, thiane-1-oxide, benzopyran and pyridinopyran compounds; and a 5.alpha.-reductase inhibitors, 17.beta.-(N-tert-butylcarbamoyl)-4-aza-5-.alpha.-androst-1-en-3-one. The method comprises administering an ef-fective amount of the potassium channel opener and administering an effective amount of the 17.beta.-N-tert-butylcarbamoyl)-4-aza-5-.alpha.-androst-1-en-3-one whereby the promotion of hair growth is increased over the sole administration of the potassium channel opener.
Patent CA-2086115-C (CA)
Inventor: PALIWODA JOSEPH
IPC: F04D29/12
Filed: 1991-07-08
Granted: 1999-10-12
Abstract: A coolant pump system (10) driven by an electric motor (16) mounted in-line with the pump shaft (196) to the pump housing (12). The system minimally includes a pump body (192) having a bore (200) therein, a coolant pump impeller (194), a pump shaft (196) passing through the bore and having the impeller mounted on one end thereof, and a bearingless seal shaft assembly (198) disposed in the bore which prevents coolant from leaking out of the body around the rotating pump shaft. The outer end (320) of the pump shaft (196) and the drive shaft (18) of the electric motor preferably include a quick-disconnect coupler which allows the two shafts to be repeatedly coupled and uncoupled without damage and without tools. This coupling mechanism may take the form of a socket (322) with bayonet slot (334, 338) on one shaft (196) and mating pin (326) on the other shaft (18) that fits in the slot. A face-mounted electric motor (16) is rigidly but removably bolted to the pump housing, and its drive shaft (18) provides complete support for the pump shaft (196) which rotates therewith. A  double-ended drive shaft (18) may be used in the electric motor (112) if desired. This arrangement allows a cooling fan assembly (20) with integral clutch mechanism (22) to be driven off one end (118) of the motor shaft, while the coolant pump shaft (196) is driven off of the other end of the motor shaft.
Patent CA-2089855-C (CA)
Title: Instant, disposable, shoulder pad
Inventor: FRAZER ELLA
IPC: A41D27/26
Filed: 1993-02-18
Granted: 2005-04-19
Abstract: A disposable shoulder pad which can be attached directly to the inside shoulder area of a garment by means of an adhesive layer, thereby eliminating the need for sewing. The pad comprises a curved body with a layer of adhesive on the top (convex) side. A removable, protective cover is layered over the adhesive. The materials are low cost, biodegradable, piper products, allowing for economical disposal and replacement. The pad is expeditiously inserted and removed from a garment.
Patent CA-2090116-C (CA)
Title: Fluid conduit safety system
Inventor: ABRAMS JOSEPH
IPC: F16L55/00
Filed: 1991-08-19
Granted: 2001-02-13
Abstract: A fluid conduit safety system which comprises valves (44) at each end of the conduit (20) which are connected by a cable (58). If the hose (20) ruptures, the valves (44) close preventing discharge of fluid from the fluid supply and discharge of fluid from the container being filled while at the same time the cable (58) prevents the ends of the hose from whipping about and causing damage or injury. Another aspect of the invention relates to a method for stopping the flow of fluid through a conduit (20) which fails, which comprises the steps of providing a conduit (20) with a valve (44) at each end and means (58) connecting the valves to each ether and disposed in the conduit.
Patent CA-2092196-C (CA)
Title: Absorbent articles, especially catamenials, having improved fluid directionality
Inventor: OSBORN THOMAS WARD III
IPC: D01D5/253
Filed: 1992-07-23
Granted: 1998-05-05
Abstract: The present invention provides absorbent articles, especially sanitary napkins, containing a fluid transport layer. In-use, the transport layer directs menses to a storage layer. thereby minimizing produc t failure and staining of undergarments. The transport layer can protrude into, or through, a topsheet to provide very aggres sive transport of vaginal discharges. Preferably, the transport layer is a layer of fibers having external capillary channels.
Patent CA-2094161-C (CA)
Title: Lampholder and mounting means therefor
Inventor: MADDOCK WILLIAM H
IPC: F21S4/10
Filed: 1993-04-16
Granted: 1998-12-08
Abstract: A lampholder for use with e.g. a string of outdoor Christmas decorative lamps includes a pair of jaws forming a clip for supporting the lampholder from an elongated support frame to create a decorative display. At least one of the jaws is provided with a recess in medial portions to adapt the clip for gripping the head of a screw from which the lampholder may alternatively be supported.
Patent CA-2094744-C (CA)
Title: Suspension mechanism for reel mowers
Inventor: SMITH LARRY NEIL
IPC: A01B63/10
Filed: 1993-04-23
Granted: 1995-07-25
Abstract: A suspension mechanism for a reel mower vehicle, having arm members coupled between a vehicle and a cutting unit, a lever member coupled with each arm member, and a hydraulic cylinder coupled the lever member.  A hydraulic circuit actuates the cylinders for lifting the arm members and cutting units to a transport position.  A variable restriction valve is provided for causing the cylinders to apply a downforce to the arm members and cutting units for securing the cutting units against the ground over irregular ground conditions, and is adjustable for varying the magnitude of the downforce.
Patent CA-2094813-C (CA)
Inventor: KILDUNE JOSEPH S
IPC: B29C39/02
Filed: 1993-04-23
Granted: 1996-10-22
Abstract: An embossing roll is formed by a process which includes molding a seamless embossing roll within a seamless sleeve.  The sleeve has indicia disposed about the inner circumference and which is then reverse molded into the roll.
Patent CA-2098507-C (CA)
Inventor: OSWALD TIMOTHY J
IPC: A61M39/02
Filed: 1991-12-20
Granted: 2002-04-02
Abstract: A drug infusion, manifold for controlling the infusion of drugs and/or other solutions into an intravenous patient feed, line. The manifold (12) includes a housing (20) defining an elongated in-line flow channel (22) that communicates at one end with a carrier fluid inlet line (14) and at the other end with the patient feed line. A plurality of spaced apart drug inlet openings (36) are formed in the housing in communication with the flow channel. Each of the inlet openings (36) is provided with a check valve assembly (38) that includes a valve member (40) defining an inlet socket (46) portion and a valve stem portion (44) that extends into the flow channel. The valve stem portion has a cylindrical sidewall (52) that defines an inlet passage (54) that communicates with the socket portion (46).  A plurality of lateral inlet ports (56) extend through the sidewall. An elastic sleeve member (58) is received about the valve stem portion (44) in covering relationship with the inlet ports (56). The valve stem portion (44) is in-line with the flow of carrier fluid through the flow channel.
Patent CA-2099231-C (CA)
Inventor: ISHIHARA MITSUTOSHI
IPC: A44B18/00
Filed: 1993-06-25
Granted: 1997-12-23
Abstract: A weft-knitted fabric for use a male or female part of a surface-type fastener which comprises an engaging section having engaging loops or hooks and an air-permeative section formed by a plain weft-knitted foundation yarn, the engaging section and the air-permeative section alternating in position with each other across a plurality of courses over the length of the fabric.
Patent CA-2102618-C (CA)
Title: Correction de l'uniformite d'un pneu sans meulage
Inventor: RHYNE TIMOTHY BRETT
IPC: B29D30/06
Filed: 1993-03-26
Granted: 1999-05-25
Abstract: Appareil et méthode permettant de réduire l'ampleur d'un défaut d'uniformité d'un pneumatique vulcanisé et d'obtenir un pneumatique ainsi traité. On génère un signal qui exprime l'importance du défaut d'uniformité. Ce signal indique également l'emplacement du pneumatique où doit s'effectuer la correction. Un secteur au moins de l'élément de renforcement de carcasse du pneumatique subit une déformation permanente selon une valeur prédéterminée à l'emplacement indiqué par le signal, de manière à corriger le défaut d'uniformité.