baber/WOPTO huggingface dataset:
Patent CA-2070789-A1 (CA)
Inventor: CAHILL CALVIN D
IPC: G21F9/34
Filed: 1991-10-25
Abstract: There is disclosed a method and apparatus for waste disposal by hydraulic embedment in a subterranean formation. A method in accordance with the present invention comprises the steps of drilling into stable geologic formations thousands of feet below ground, fracturing those formations, pumping a mixture of hazardous waste in solid, liquid, or sludge form and a selected transport medium into the fractured formations, and preventing migration of the waste. Although a suitable transport medium can be selected based on a number of factors, transport media selected in accordance with one aspect of the present invention prevent migration of the waste by reacting chemically or to either heat or pressure or both to become highly viscous or solid. In other aspects of the present invention, the method prevents waste migration by either pumping a fluid for sealing the fractured underground formation before the mixture is pumped or encapsulating the waste prior to mixture with the transport medium and injection into the fractured formation. Apparatus for carrying out the method is also disclosed.
Patent CA-2071917-A1 (CA)
Title: 15,16-seco-19-nor progestins
Inventor: PETERS RICHARD H
IPC: C07J41/00
Filed: 1991-09-04
Abstract: 15,16-Seco-19-nor progestins are provided which display elevated progestational activity with a minimum of ancillary hormonal activity. Processes for the preparation of the novel progestins are provided as are methods of use. A preferred method of use is in the suppression of ovulation in the human female.
Patent CA-2073508-A1 (CA)
Inventor: CONWAY ANTHONY J
IPC: A61F2/958
Filed: 1991-01-08
Abstract: A balloon catheter (4) and method of making same. The method includes providing a tube (2) having an outer surface (14) and a plurality of lumens (6,8) in-cluding first (6) and second (8) lumens, the tube including a first lumen (6) access opening (12) in the outer surface communicating with the first lumen (6);  simul-taneously coating a first portion of the outer surface with an amount of a bond pre-venting agent effective to prevent bonding to the first portion of the outer surface and plugging the first lumen access opening (12); and subsequently coating a sec-ond portion of the outer surface and the coating of bond preventing agent on the first portion of the outer surface with a polymeric bonding composition, wherein a resilient overcoat layer (38) is created which is fixed to and integral with the tube proximate the second portion of the outer surface and free from adherence to the tube proximate the first portion of the outer surface.     Tita
Patent CA-2078732-A1 (CA)
Title: Displacement measuring device and displacement measuring method
Inventor: SENTOKU KOICHI
IPC: G03F9/00
Filed: 1992-09-21
Abstract: ABSTRACT OF THE DISCLOSURE     A method and device for measuring the relative displacement between first and second diffraction gratings includes an interference optical system forming first and second interference rays of light from light diffracted from the first and second diffraction gratings and separating the first and second interference rays of light on the basis of the difference in their direction of polarization, a first detector for detecting the first interference ray of light to generate a first detection signal, a second detector for detecting the second interference ray of light to generate a second detection signal, and signal processing section for detecting the phase difference between the first and second detection signals and for determining the relative displacement between the first and second diffraction gratings on the basis of the phase difference.
Patent CA-2079299-A1 (CA)
Inventor: BAREFOOT RUSSELL E
IPC: E03D9/052
Filed: 1992-09-28
Abstract: In a device for eliminating odors from a toilet bowl, a seat and lid appurtenance houses an internal air passage leading from the toilet bowl to the ambient atmosphere. A central lid extension functions  as  a backrest and a housing  for a motorized  fan.  A battery housed within the seat energizes the fan which draws foul air from the bowl through a filter for deodorization. Lid vertical instability is overcome with a lid coupling valve which provides independent   and   separate   seat   and   lid   hinging   systems.
Patent CA-2079448-A1 (CA)
Inventor: SHERMAN DAVID G
IPC: C12Q1/68
Filed: 1992-02-10
Abstract: L'invention décrit des oligonucléotides conjugués à des chélates de minéraux rares et s'utilisant dans des essais d'hybridation d'acide nucléique et pour la production de sondes de marquage par chélates de toute séquence souhaitée. La catégorie particulière des chélates utilisés présente une efficacité inhabituelle de capture d'éléments minéraux rares, en corrélation avec l'émission d'un haut niveau de signal en spectroscopie par fluorescence à résolution dans le temps par rapport à d'autres composés de chélates apparentés sur le plan structurel.
Patent CA-2080785-A1 (CA)
Title: Corrosion inhibiting hydraulic cement additives and compositions containing same
Inventor: ARFAEI AHMAD
IPC: C04B24/32
Filed: 1992-10-16
Abstract: ABSTRACT OF THE INVENTION      An additive for hydraulic cement compositions is provided which advantageously provides corrosion inhibition and set acceleration, in combination with a high level of fluidity and retention of fluidity over a desired period of time.  The cement additive comprises an accelerator selected from the group consisting of alkali or alkaline earth metal nitrates, alkali or alkaline earth metal nitrites, and mixtures thereof, and a plasticizer comprising copolymers of an ether comonomer and an ethylenically-unsaturated comonomer.     Fluid hydraulic cement compositions and a method of preparing them are further provided comprising these additive combinations.
Patent CA-2081022-A1 (CA)
Title: Methods of preventing viral replication
Inventor: BLUM HUBERT E
IPC: C12N7/00
Filed: 1991-04-22
Abstract: The invention is drawn to methods and compositions for inhibiting viral replication. In particular, complete and irreversible termination of replication of a virus is achieved by introducing aT  least one mutation at specific regions in the viral polymerase gene. The method can be used to prevent or treat viral infections.
Patent CA-2081767-A1 (CA)
Title: Formulations for iron oxides dissolution
Inventor: HORWITZ EARL P
IPC: C02F1/72
Filed: 1991-04-26
Abstract: A mixture of a di- or polyphosphonic acid and a reductant wherein each is present in a sufficient amount to provide a syn-ergistic effect with respect to the dissolution of metal ozides and optionally containing corrosion inhibitors and pH adjusting agents.
Patent CA-2084141-A1 (CA)
Inventor: PUCKETT RILEY
IPC: F42B6/08
Filed: 1992-11-30
Abstract: A broadhead (1) has cutout regions (28) at the rear of cutting blades (14 and 16) to reduce adverse wind effects on the flight of an arrow.  The cutting blades (14 and 16) are held in a barbed configuration by frictionally secured rings (20). The cutting blades (14 and 16) pivot to a nonbarbed configuration upon withdrawal from an animal with the rings (20) moving towards tip (2).  A threadably connectable arrow shaft protector (8) reduces the costs of manufacturing.
Patent CA-2087490-A1 (CA)
Title: Phthalocyanine colorants
Inventor: GREGORY PETER
IPC: C09D11/00
Filed: 1993-01-18
Abstract: A colorant of Formula (1) (see formula 1) wherein:      L is a metal ration oe hydrogen;      Pc is a phthalocyanine radical having a valency from 3 to 4;      R1 is H, alkyl, substituted alkyl, alkenyl, substituted alkenyl, aralkyl or substituted aralkyl;      R2 is H, alkyl, alkoxy, halo or an optionally substituted amino group;      M+ is NH4+ or a substituted ammonium cation; and (t+q) is from 3 to 4 inclusive; with the proviso that: the group CO2-M+ is at the 2-, 3-, 5- or 6-position in Formula (1).
Patent CA-2089680-A1 (CA)
Title: Shower liner
Inventor: DIX STEVEN J
IPC: A47K3/40
Filed: 1993-02-17
Abstract: A shower liner for use with ceramic tile consisting of a shell form polymer plastic body having a substantially flat bottom and a peripheral sidewall extending upwardly from the bottom.
Patent CA-2093201-A1 (CA)
Title: Engineering resin-propylene polymer graft composition
Inventor: OKAMOTO KELVIN T
IPC: C08L71/12
Filed: 1993-04-01
Abstract: Disclosed are resin compositions comprising (a) a polyphenylene ether resin or a polyamide resin or a polyester resin; (b) a glycidyl moiety-styrenic grafted propylene polymer material in combination with a styrenic polymer copolymerized with a glycidyl moiety; optionally (c) (1) one or more monoalkenyl aromatic hydrocarbon-conjugated diene block copolymers, hydrogenated products thereof or mixtures thereof, with or without (2) olefin copolymer rubber; and optionally (d) a propylene polymer material.      The compositions exhibit increased resistance to delamination, indicating improved compatibility between the engineering resins and propylene polymer material.
Patent CA-2093283-A1 (CA)
Inventor: BEAUCHAMP BERNARD
IPC: G06F3/02
Filed: 1993-04-02
Abstract: DE DIVULGATION L'invention concerne un système de commande d'un ordinateur à partir d'une console opérateur ayant au moins une liaison d'entrée sur laquelle peut se raccorder un dispositif d'entrée manuelle d'informations, tel qu'un clavier Un circuit interface est branché sur la liaison d'entrée pour transmettre automatiquement à la console des données, des instructions de commande et/ou des messages, à partir d'au moins un terminal
Patent CA-2093633-A1 (CA)
Title: Carbostyril derivative and platelets aggregation inhibitory agent
Inventor: SATO SEIJI
IPC: C07D401/14
Filed: 1992-08-18
Abstract: Abstract The present invention provides a carbostyril derivative represented by the following general formula   (wherein A, R and W have the same definitions as given above; and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton represents a single bond or a double bond.).         Said carbostyril derivative is useful as a platelets aggregation inhibîtory agent.
Patent CA-2094421-A1 (CA)
Title: Methods for controlling the deposition or organic contaminants in pulp and papermaking processes
Inventor: DREISBACH DAVID D
IPC: D21H21/02
Filed: 1993-04-20
Abstract: Methods for inhibiting deposition of organic contaminants from pulp in pulp and papermaking systems which comprises treating the pulp and papermaking system with an effective amount of a polyalkylene oxide/vinyl acetate copolymer.
Patent CA-2097774-A1 (CA)
Title: Telescopic mast for a global positioning system antenna
Inventor: SANTERRE ROCK
IPC: H01Q1/12
Filed: 1993-06-04
Abstract: The disclosure herein describes a telescopic mast for a global positioning system antenna, the mast being formed of a plurality of telescoping sections which are opened and retracted by means of a single cable operating through a pulley-and-winch arrangement. A plurality of the stays extend through three levels of mast sections and are each connected, at the lowermost section, to a device that is used by an operator to adjust the verticality of the mast as a result of viewing, through an optical instrument mounted on the lowermost section, reference points located on the upper end of the uppermost section.
Patent CA-2098300-A1 (CA)
Title: Particle and light and heavy fluid separator
Inventor: WADE BRIAN
IPC: F01N3/28
Filed: 1992-01-27
Abstract: A fluid centrifuge device for separating fluids and/or solids comprises a non-rotatable containment vessel (6) and a rotat-able shroud (6A) of conical or other form within said vessel (6). The vessel (6) is located between an inlet assembly (2) including a manifold (8) which leads to the interior of a turbine housing (14) of a turbocharger and an outlet assembly (4) including two out-lets (10, 10A) for respectively clean and dirty gases. The shroud (6A) is mounted on a drive shaft (20) for rotation therewith. The shaft (20) and the shroud (6A) are driven by turbine blades (16) or by other drive.
Patent CA-2101285-A1 (CA)
Inventor: YOSHIDA NORIYUKI
IPC: C30B23/02
Filed: 1993-07-26
Abstract: Disclosed herein is a method of forming a single-crystalline thin film having excellent crystallinity on a base material without depending on the material for and crystallinity of the base material.  In this method, a base material is provided thereon with a mask which can prevent chemical species contained in a vapor phase from adhering to the base material.  The base material is continuously moved along arrow A, to deliver a portion covered with the mask into the vapor phase for crystal growth.  Thus, a thin film is successively deposited on the portion of the base material, which is delivered from under the mask, from the vapor phase.  A crystal growth end is formed on a boundary region between a portion of the base material which is covered with the mask and that which is exposed to the vapor phase, so that a crystal having the same orientation as the growth end is grown on a portion of the base material newly exposed by the movement.
Patent CA-2103511-A1 (CA)
Title: Gastroprotective complexes
Inventor: KOSLO RANDY J
IPC: A61K47/48
Filed: 1993-08-06
Abstract: ABSTRACT OF THE DISCLOSURE   Inclusion compounds of cyclodextrins and buffers and methods of their manufacture are disclosed that provide a gastro-protective benefit.
Patent CA-2106466-A1 (CA)
Title: Coaxial cable connector with mandrel spacer and method of preparing coaxial cable
Inventor: MCMILLS COREY J
IPC: H01R24/38
Filed: 1992-03-20
Abstract: The invention describes a method of preparing a cable, a coaxial cable mandrel guide/spacer, and a plurality of coaxial cables capable of accepting flexible coaxial cable without the requirement or folding back the conductive shielding braid material to form a connection to the cable. The guide/spacer is also useful with other nonbraided type connectors to avoid the need for a multilevel stripping of the coaxial cable. Avoiding the need for braid rollback eliminates a potential leak path and creates an improved sealed connector.
Patent CA-2107554-A1 (CA)
Title: Tracking system using a polygon of unique dimension or arbitrary polygon combined with sensors
Inventor: SHAHAR ARIE
IPC: G02B5/09
Filed: 1991-11-01
Abstract: A polygon (P7) having a radius which is correlated to a tracking radius by a rule which creates an improved linear tracking system with a constant optical path. The polygon is useful for reading and writing information, and tracking industrial products on a rotating carousel. When the polygon is mounted on the center (R13) of a rotating carousel (C1) with no relative movement therebetween, it can perform accurate linear tracking of objects located on the carousel. The radius of the polygon is equal to half the tracking radius divided by the cosine of an angle of 180/n where n is integer. The polygon can have an arbitrary number of sides.  Using another method, the non-linearity of the system for an arbitrary polygon's radius can be corrected by a series of sensors (N1 to N4) positioned at non-linear intervals to trigger a laser beam, creating an effective linear movement of the laser beam on the tracking circumference of scanned objects.
Patent CA-2109138-A1 (CA)
Title: Device for encoding digital signals representing images, and corresponding decoding device
Inventor: FERT ETIENNE
IPC: H04N1/41
Filed: 1993-10-25
Abstract: A device for encoding digital signals corresponding to images which are subdivided into blocks has a first encoding channel including a discrete cosine transform circuit. In addition to this first encoding channel the device has a second encoding channel which encodes the differences between the original coefficients present at the output of the discrete cosine transform circuit and the same coefficients after quantization and inverse quantization.        This second channel encodes the differences after they are quantized with a finer quantization step than in the first encoding channel. The device further includes a prediction channel including a motion compensation stage, that uses both the inverse quantized coefficients coded in the first encoding channel and the inverse quantized coefficients coded in the second encoding channel to produce a predicted digital signal. This predicted digital signal is subtracted from the digital signal to be encoded by the device.
Patent CA-2109565-A1 (CA)
Inventor: VOGEL JAMES D
IPC: B67D1/12
Filed: 1993-05-21
Abstract: A post-mix beverage dispensing valve is shown that provides for assembly thereofsubstantially manually. This easy assembly is provided for by a plurality of snap fitting component structures. A nozzle is also shown that provides for higher flow rates. Lever operated and electronic operated embodiments of the valve are also shown. The valve is also particularly designed to provide for an electronic switch/control module separate from the valve housing cover. The valve further includes improved banjovalves and accompanying seat structures to provide for increased fluid flow and for fluid flow that is less turbulent.
Patent CA-2113887-A1 (CA)
Title: Method for winding sutures and wound suture package
Inventor: HUGHIESON ALAN D
IPC: A61B19/02
Filed: 1994-01-20
Abstract: ABSTRACT      A method of winding a suture to provide easy removal of the suture from a package.  The suture is wound with a U-bend along its length.
Patent CA-2115624-A1 (CA)
Title: Method for fabric identification
Inventor: PIKE JOHN N
IPC: G01J3/12
Filed: 1994-02-14
Abstract: An apparatus and method is provided for identifying a diffusely-reflecting material, such as a textile fabric. A light source transmits radiation onto the unknown material, and a detector receives radiation diffusely reflected by the unknown material, and generates signals indicative of diffuse-reflection characteristics of the unknown material. A processor is coupled to the detector, and includes diffuse-reflection data on a plurality of reference materials. The processor compares the diffuse-reflection characteristics of the unknown material based on the signals of the detector to the reference data, and by a process of elimination, identifies the unknown material.
Patent CA-2120573-A1 (CA)
Title: Method of producing glass materials from ash-slag waste
Inventor: ANSHITS ALEXANDR G
IPC: C03C3/087
Filed: 1994-04-05
Abstract: A method of obtaining glass materials from ash-slag waste wherein the waste is heated to a melting point temperature and melted in a reducing medium. The obtained melt is cooled by a thermal shock to form a foamed glass material. Prior to heating the charge, the carbon content therein is brought to 3.0 - 8.0 wt %, and the foamed glass material is foamed under a flow of a gaseous medium resulting from decomposition of carbides formed in the melt as a result of carbon content adjustment. Carbon addition also reduces iron oxide present in the waste, this reduction facilitating iron separation from the foamed material.
Patent CA-2122222-A1 (CA)
Title: T lever adapter for a ratchet wrench
Inventor: BANNS STOKE
IPC: B25B13/46
Filed: 1994-04-26
Abstract: A T lever adapter for a ratchet wrench is described which includes a body having a generally "U" shaped channel.  The channel is adapted to receive in mating engagement a head of a ratchet wrench.  Clamps are secured to the body at opposed ends of the channel.  This enables the head of the ratchet wrench is clamped in engagement with the channel.  A handle extends from the body.  The handle being substantially coaxial with a handle of the ratchet wrench when the head of the ratchet wrench is received in the channel.
Patent CA-2122907-A1 (CA)
Title: Vegetable oil compositions
Inventor: CARRICK VIRGINIA
IPC: C11B5/00
Filed: 1992-03-09
Abstract: ABSTRACT OF THE INVENTION The present invention deals with stabilizing triglycer-ide oils of high oleic content through the use of tocopherol. This combination of the high oleic oil and the tocopherol results in a surprisingly stable composition for use in deep frying.
Patent CA-2123178-A1 (CA)
Inventor: BEUZER MICHEL
IPC: H03L7/02
Filed: 1994-05-09
Abstract: Dispositif de réduction des raies parasites du signal de sortie d'un synthétiseur de fréquence numérique L'invention concerne un dispositif de réduction des raies parasites du signal de sortie d'un synthétiseur de fréquence numérique (10) recevant d'une part un signal d'horloge (E) issu d'un modulateur (11) et fournissant un signal de sortie (Sdds) à une fréquence pure (FS) modulée par des fréquences parasites. Le dispositif comporte un démodulateur de fréquence (13) recevant le signal de sortie du synthétiseur (10) et fournissant un signal de correction dont l'amplitude (Vm) est fonction de l'excursion de fréquence du signal de sortie (Sdds) du synthétiseur (10), ce signal de correction étant appliqué au modulateur (11) pour qu'il module le signal appliqué au synthétiseur (10) en opposition de phase par rapport à la modulation parasite, de manière à supprimer cette modulation parasite. Figure à publier : FIG.1
Patent CA-2123730-A1 (CA)
Title: Filtration method
Inventor: DEGEN PETER J
IPC: B01D36/00
Filed: 1994-05-17
Abstract: The present invention provides a method of filtering a fluid comprising (a) passing a first portion of a contaminated fluid through a filtration system comprising a first filtration medium of a preselected surface area which removes contaminants from the first portion of the fluid, (b) simultaneously passing a second portion of the contaminated fluid through a monitoring system comprising a second filtration medium of a preselected surface area which removes contaminants from the second portion of the fluid, wherein the first and second filtration media are the same except that the surface area of the first filtration medium is greater than the surface area of the second filtration medium, and wherein  the  rate  at which  the  second portion  of  the contaminated fluid passes through the second filtration medium per unit of surface area of the filtration medium is greater than the rate at which the first portion of the contaminated fluid passes through the first filtration medium per unit of surface area of the filtration medium, (c) determining the quantity of fluid passed through the second filtration medium per unit of surface  area  of  the  second  filtration  medium  from  the commencement of fluid flow therethrough until an increase in pressure drop is observed across the second filtration medium, and (d) terminating the passage of the first portion of the contaminated fluid through the first filtration medium before the quantity of fluid passed therethrough per unit of surface area of the first filtration medium exceeds the quantity of fluid passed through the second filtration medium per unit of surface area of the second filtration medium resulting in an increased pressure drop.
Patent CA-2124751-A1 (CA)
Title: Method and reactor for treating process gas
Inventor: RASANEN KARI
IPC: B01J8/38
Filed: 1994-05-31
Abstract: Abstract The invention relates to a method for cooling and cleaning gases containing tar-like or other impurities,  and to a reactor.  In the method, process gas is first fed into a hot fluidized bed (4), where the tar-like impurities contained in it crack into smaller fractions, whereafter the process gas is passed onward, the fluidized bed material entrained in the process gas is separated  from  the  process  gas  and  returned through the cooler (8) into the fluidized bed and into the process gas stream,  whereby the process gas cools under the influence of the cooled  fluidized  bed  material.  The  reactor comprises a cooler (8) above the fluidized bed (4)  and  an  annular  conduit  (7)  outside  the cooler (8),  through which conduit the process gas flows into the upper portion of the reactor after the fluidized bed  (4).  It further com-prises a fluidized grate (11) below the cooler (8),  to which grate the cooled fluidized bed material from the cooler (8)  drops,  and from where the  fluidized bed material  is  returned into the fluidized bed (4) and into the process gas stream by feeding the process gas to be treated into it as fluidizing gas. (Figure 1)