baber/WOPTO huggingface dataset:
Patent CA-2005205-A1 (CA)
Title: 2',3'-dideoxypurine nucleoside/purine nucleoside phosphorylase inhibitor combination therapy and composition
Inventor: ERION MARK D
IPC: A61K31/7042
Filed: 1989-12-12
Abstract: 4-17360/1+2/+/CGC 1385 2',3'-DIDEOXYPURINE NUCLEOSIDE/PURINE NUCLEOSIDE PHOSPHORYLASE INHIBITOR COMBINATION THERAPY AND COMPOSITION            Abstract of the Disclosure Combination therapy of 2',3'-dideoxypurine nucleoside and purine nucleoside phosphorylase inhibitor is disclosed for the treatment of human immunodeficiency virus (AIDS) and other retrovirus infections, for slowing the in-vivo decomposition of2',3'-dideoxypurine nucleoside and for enhancing the effectiveness of 2',3'-dideoxypurine nucleoside. Compositions used in these therapy methods are also disclosed.
Patent CA-2007596-A1 (CA)
Title: Ball separator for bearing assembly
Inventor: JOHNSON JAMES P
IPC: F16C33/38
Filed: 1990-01-11
Abstract: ABSTRACT OF THE DISCLOSURE         A separator for the balls of a ball bearing assembly, especially of the land riding variety which is constructed of two like parts joined together by ultrasonic welding.   The separator is provided with generally cylindrical ball receiving pockets. Skis are provided on the circumference of the separator which ride on the lands of the bearing.  Each part of the separator is formed with alternating studs and bores, which, when two parts are assembled, the bores receive the opposing studs.  The structure is so formed to insure the flow of lubricant to the raceways.
Patent CA-2018978-A1 (CA)
Inventor: ORI AIICHIRO
IPC: C07D405/06
Filed: 1990-06-14
Abstract: Process for preparing imidazole derivatives of the general formula (I)     ............. (I) wherein R1 and R2 independently are C1-C4 alkyl, by desulfurizing a mercaptoimidazole derivative of the general formula (I):        ................. (I) wherein R1 and R2 are as defined above, uith nitric acid in the presence of a nitrite.  The compounds of the formula(I) are useful for the treatment of glaucoma.
Patent CA-2024348-A1 (CA)
Title: Liquid membrane process for separating gases
Inventor: DOBITZ JOHN K
IPC: B01D53/00
Filed: 1990-08-30
Abstract: LIQUID MEMBRANE PROCESS FOR SEPARATING GASES                 (D#78,786-F) ABSTRACT OF THE DISCLOSURE         The invention is a liquid membrane process for separating a gaseous stream into a permeate stream of gases having predominantly lower equilibrium K values and a stream of gases having predominantly higher equilibrum K values, wherein the feed stream and the liquid membrane are operated at a temperature and pressure near a dew point of the feed stream in the two phase liquid/gas region of the phase envelope so that condensate from the feed stream will supply the liquid for the liquid membrane.  The liquid membrane process is especially useful to separate hydrocarbon gases, such as a natural gas feed stream containing a large concentration of methane.
Patent CA-2026245-A1 (CA)
Title: Assay method for detecting viable listeria
Inventor: GREEN CALVERT L
IPC: G01N33/68
Filed: 1990-09-26
Abstract: ABSTRACT    An assay method is provided to quickly detect the presence of Listeria strains in samples, characterized by the selective growth of Listeria cells within macrophage-like cells and subsequent detection of the amplified Listeria cells or components of the Listeria bacterial cell wall.
Patent CA-2028744-A1 (CA)
Title: System and method for separating a portion of a gas from a mixture of gases
Inventor: BROWN JOHN G JR
IPC: B01D53/26
Filed: 1990-10-29
Abstract: 36-21(10015)A            SYSTEM AND METHOD FOR SEPARATING A PORTION   OF A GAS FROM A MIXTURE OF GASES            ABSTRACT OF THE DISCLOSURE  A system for separating a portion of a first gas from a gaseous feed comprising a mixture of gases that  is  intermittently supplied  to  said  system.   The system  comprises  a  membrane  gas  separator  having  at least one membrane through which the first gas permeates preferentially in comparison to other gases contained in the  mixture.   The  separator  is  adapted to produce  a nonpermeate gaseous product which is discharged from a nonpermeate gas side of the separator and in which the concentration of said first gas is  lower than in said feed mixture.  The system also includes a mechanism for supplying a gaseous purge stream to the separator when the feed mixture is not being supplied to the system. The concentration of  the  first  gas  is  lower  in  the gaseous purge stream than in the feed mixture to purge residual  amounts  of  the  first  gas  contained  in  the membrane  of  the  separator.   The method of  separating gases  from  an  intermittently  supplied  feed  is  also disclosed.
Patent CA-2029688-A1 (CA)
IPC: B26D1/08
Filed: 1990-11-09
Abstract: A method of manufacturing sheets which comprises the steps of feeding a sheet material in a predetermined polygonal shape, cutting collectively or substantially at one time a plurality of corner portions of the thus fed sheet material to obtain a sheet and then discharging the thus obtained sheet.  The apparatus comprises belt conveyors for sequentially feeding sheet materials in a predetermined polygonal shape, cutting dies for cutting collectively or substantially at one time the rear corner portions of the sheet material fed previously and the front corner portions of the sheet material fed subsequently, to obtain sheets, and belt conveyors for sequentially discharging the thus obtained sheets.  When a ruled line, that is, an elongate recess or the like for bending is needed, cutting of the corner portions and formation of the ruled line are effected collectively or substantially at one time.
Patent CA-2029824-A1 (CA)
Title: Control arrangement for a seat heater
Inventor: HANZIC DIRK
IPC: H05K1/11
Filed: 1990-03-12
Abstract: ABSTRACT           A heating arrangement for heating a seat has temperature responsive means and control means for controlling the supply of electrical current to the heating means embedded in the seat.  The control means are formed of components mounted on a flexible printed circuit board.
Patent CA-2032256-A1 (CA)
Inventor: EOM TAE J
IPC: D21C1/00
Filed: 1990-12-14
Abstract: A biological method of deinking printed wastepaper consisting of the steps of disintegrating of printed wastepaper in hot water containing cellulase or pectase and removing ink particles from fibers by froth flotation or washing.
Patent CA-2032871-A1 (CA)
Inventor: WEGMAN RICHARD W
IPC: B01J37/08
Filed: 1990-12-20
Abstract: HYDROGENATION WITH Cu-Al CATALYSTS          FIELD OF THE INVENTION       The invention relates to a process for the catalytic vapor phase hydrogenation of bound oxygen-containing organic compounds and particularly to the catalytic hydrogenation of esters. DESCRIPTION OF RELATED TECHNOLOGY       The hydrogenation of, for example, mono-esters normally yields alcohols according to a simple relationship:            RC(O)OR' + 2H2?R'OH + RCH2OH The hydrogenation of diesters generally results in a more com-plicated product mixture. For example, the hydrogenation of a dialkyl maleate typically results in the formation of several products, the amount of each depending on the reaction conditions: ROC(O)CH=CHC(O)OR + xH2?2ROH + 1,4-Butanediol +                                Tetrahydrofuran + gamma-Butyrolactone The concentrations of each of the products are a function of the equilibrium reaction conditions, e.g. temperature, pressure, liquid hourly space velocity (LHSV), and gas hourly space velocity (GHSV) of the process. Like most hydrogenation reactions, the processes are usually catalyzed and are affected strongly by the composition of the catalyst used in the process. Typical hydrogenation catalysts for esters are a combination of reduced copper and zinc (GB 2,150,560 and WO 83/03409) or reduced copper-chromite (U.S. 2,100,483; 3,767,595; and 4,584,419). Various promoters can be added as dis-closed in U.S. Patent No. 2,109,844 (barium or cadmium).       Patent Nos. 2,297,769; 4,209,424; 4,593,015; and 4,600,704 and EP 0143,634 discuss particular reduction activation processes - for copper-based catalysts.
Patent CA-2032886-A1 (CA)
Title: Surface-treating apparatus for agitatable material
Inventor: BIRKLE SIEGFRIED
IPC: C25D17/28
Filed: 1990-12-20
Abstract: ABSTRACT OF THE DISCLOSURE       An apparatus is provided for surface treating agitatable material that includes a conveyor trough for transporting the agitatable material.  The trough is at least partially submerged in a treatment bath and it includes at least a first and second shaking chute each having a length along which the material is conveyed. the first and second chutes are disposed at angles from the horizontal such that the conveying direction of the first chute is substantially opposite to the conveying direction of the second chute.
Patent CA-2035353-A1 (CA)
Title: Polyquinoxaline compositions and the method of preparation
Inventor: CHIANG LONG Y
IPC: C23F11/14
Filed: 1991-01-31
Abstract: ABSTRACT OF THE DISCLOSURE           Novel  polymers  consisting  essentially   of recurring moieties  selected from  polyquinoxaline  and substituted  polyquinoxalines  are  disclosed.    These polymers are prepared by contacting 1,2,3,4-tetrahydro-quinoxaline or  1,2,3,4-organo substituted  tetrahydro-quinoxaline compounds with  a transition metal  sulfide catalyst at elevated temperatures.  Also disclosed  are quaternary ammonium derivatives of the novel  polymers, their preparation and use.
Patent CA-2036236-A1 (CA)
Title: Radial tyre
Inventor: SAITO YUICHI
IPC: G01N19/00
Filed: 1991-02-13
Abstract: The present invention provides an optimum radial tyre which is suitable for most cars. In the present invention, an a value is introduced as indicating the properties of the car and the tread rubber of the tyre is selected according to the .alpha. value. Accordingly, the present invention provides a radial tyre which comprises a tread and sidewall, wherein the tread has the claimed relation between a viscoelasticity (tan .delta.) peak temperature (Tg) and an a value which indicates the properties of a car, and a one side half width (w/2) near the tan .delta. peak temperature of 25 deg or less.
Patent CA-2036298-A1 (CA)
Title: Method for channeling gases in a lined container
Inventor: BARGER STEVEN D
IPC: B65D81/20
Filed: 1991-02-13
Abstract: Abstract of the Disclosure A method for channeling gases in a lined container includes the steps of providing a container having an outer shell comprising a substantially rigid bottom, side and end walls, the walls defining a cavity with interior surfaces and an upper rim, and a thermoplastic liner covering the interior surfaces of the cavity; and providing a fluted profile on the interior surface of the bottom wall of the outer shell, in communication with the thermoplastic liner.   A container is also provided comprising an outer shell having a substantial-ly rigid bottom,  side and end walls,  the walls defining a cavity  with  interior  surfaces  and  an  upper  rim,  and  a thermoplastic  liner  covering the  interior surfaces of the cavity; and a fluted profile on the interior surface of the bottom wall of the outer shell,  in communication with the thermoplastic liner.     4/900208.5A/OLDFLDR/01/29/91/04:24:06 PM
Patent CA-2040840-A1 (CA)
Inventor: LERNER BERNARD J
IPC: B01D47/00
Filed: 1991-04-19
Abstract: This invention relates to a novel gas-liquid contacting apparatus and method utilizing recycle spray contact trays disposed within a substantially vertical vessel. Each contact tray contains one or more housings defined by upstanding vertical wall members, said housings being open to gas flow at top and bottom. Within the housings, liquid spray is continuously generated by means of gas flowing upward past a first array of horizontally spaced-apart gas venturi-generating liquid conductors. Liquid flows from the tray floor outside the housing through the liquid conductors, is distributed into the gas, and is entrained upward as spray by the gas venturi action. Horizontally-disposed foraminous or perforated flow-restrictive elements, vertically spaced apart, mounted on top of the housing, cause the liquid spray to coalesce and regenerate at the first flow-restrictive barrier element which occupies the cross-sectional area of the vertical housing. A mayor portion of the gas and contained spray is then caused to flow laterally, normal to the upward gas flow direction, through the high-voidage space between the elements. The flow-restrictive elements are comprised of foraminous or perforated plate or tubes, or anisotropic material such as layered mesh. The spray issuing laterally impinges on the vessel walls and liquid therefrom drains downward or falls by gravity to the tray floor, where the process is repeated. The method of invention encompasses spray contacting with automatic and continuous recirculation of liquid spray in a controlled manner at rates that are multiples of the liquid throughput rate, and is capable of operation at high gas velocities and low pressure drop.
Patent CA-2043495-A1 (CA)
Title: Method of filtering beverages and chemical, pharmaceutical, or similar liquids
Inventor: OECHSLE DIETMAR
IPC: C12H1/02
Filed: 1991-05-29
Abstract: A method of filtering beverages and other liquids. To avoid the considerable ecoproblems encountered with the filter aids of known procedures, which must be thrown away, the filtering active structure of the inventive filter aids is maintained so that they may be reused as often as required. A mixture of filter aids of varying morphological and physical components is used, and constitutes a minimum of two components, namely one component of specifically heavy, chemically stable metal and/or metal oxide and/or carbon particles of fibrous and/or granular structure, and a further component, for building up the filter cake and increasing its volume, of synthetic and/or cellulose fibers having a fiber length of 1 to 5000 µm and a fiber thickness of 0.5 to 100 µm. To increase the filtering efficiency of the filter cake of the aforementioned components, a further component may be added that comprises fibrillated or fanned out synthetic and/or cellulose fibers, preferably having a fiber length of 500 to 5000 um and a fiber thickness of 0.5 to 20 µm. The components are intensively mixed to form a homogeneous mixture, and are dosed to the liquid that is to be filtered.
Patent CA-2043614-A1 (CA)
Title: Modified polyamide and polyolefin thermoplastic elastomer compositions; their use for manufacturing molded or extruded articles, films and composite materials
Inventor: VASSELIN THIERRY
IPC: B63B35/79
Filed: 1991-05-31
Abstract: Thermoplastic elastomer compositions based on polyamide and modified polyolefins. These compositions are prepared by compounding and can be employed for the manufacture of moulded or extruded objects and for the production of mono- and multilayer films and of composition materials involving the said articles and/or films.
Patent CA-2043958-A1 (CA)
Inventor: ROBBINS EDWARD S III
IPC: B65D3/22
Filed: 1991-06-05
Abstract: A packaging system for liquids includes a relatively rigid open top carrier provided with a carrying/pouring handle, the carrier adapted to receive a collapsible container in nested relationship.  The unitary, collapsible, but normally self-supporting container includes an integral dispensing portion and a screw-on type cap.  The container and optional carrier are provided with cooperable surface configurations which releasably hold the container within the carrier during pouring. The container is also fully capable of stand alone use without the carrier.
Patent CA-2044013-A1 (CA)
Title: Flutter suppression air foils
Inventor: NGUYEN DONG D
IPC: F26B13/00
Filed: 1991-06-07
Abstract: FLUTTER SUPPRESSION AIR FOILS  ABSTRACT       Apparatus and methods for reducing the amplitude and frequency of web-edge flutter associated with drawing web materials are provided.  The apparatus includes a pair of air foils disposed proximate to a pair of opposing planar surfaces of the web.  Each of the air foils includes a first convex surface facing the web and disposed in contact with air flowing on the web for producing a venturi effect which reduces at least the flutter amplitude in the open draw.
Patent CA-2044203-A1 (CA)
Title: Take apart lock
Inventor: SCHENK RONALD G
IPC: A47B88/57
Filed: 1991-06-10
Abstract: A unique take-apart lock mechanism for use with drawer slides in cabinet and drawer arrangements is disclosed.  The mechanism comprises a release lever, a butterfly catch and a pair of stop blocks.  The butterfly catch and release lever are mounted within the drawer slide and the stop blocks mounted within the larger cabinet slide.  By moving the release lever slideably within the inner channel, a pair of projections pull outwardly biased resilient wings of the butterfly catch inwardly, therefore allowing them to pass by the stop blocks, enabling the drawer to be removed from the cabinet.  When the release lever is returned to its normal position, the drawer can be extended from the cabinet outwardly to a locked position thereby prohibiting it from being removed or accidentally falling.
Patent CA-2044591-A1 (CA)
Inventor: DALE JAMES L
IPC: C12Q1/6813
Filed: 1990-02-13
Abstract: A method for detecting a specific polynucleotide sequence in a material is disclosed. The method includes exposing said material to an oligonucleotide primer having a sequence complementary to part of said specific polynucleotide sequence wherein said primer binds to pan of said polynucleotide sequence when present in said material. Primer bound to the polynucleotide se-quence is extended wherein any extended primer includes a detectable element and/or a separation element. Any extended pri-mer is then separated into a fraction wherein said fraction does not have detectable element not included in said extended primer. One then determines whether any extended primer is present in said fraction by assaying said fraction for said extended primer wherein the presence of said extended primer is indicative of the presence of the specific polynucleotide sequence in said material and the absence of said extended primer in said fraction is indicative of the absence of the specific polynucleotide sequence in said material.
Patent CA-2047255-A1 (CA)
IPC: B24D13/14
Filed: 1991-07-17
Abstract: A rotary polishing tool comprises a disk-shaped polishing portion corresponding to a workpiece and a disk-shaped substrate which is positioned on the rotary center of the polishing portion for supporting the polishing portion.          The substrate is provided with a mounting hole through which a driving shaft is passed on the rotary center.  The substrate is made of metal and is provided with a lot of holes, and there is provided a rubber layer which is interposed between the polishing portion and the substrate and vulcanized and bonded to the polishing portion and the substrate to fix the polishing portion and the substrate to each other.
Patent CA-2047410-A1 (CA)
Title: Methods of preparation of packaging bags for bottles, methods of preparation of packaging bottles and apparatus utilize therefor
Inventor: SUKEYASU RYUZO
IPC: B31B23/00
Filed: 1991-07-19
Abstract: ABSTRACT OF THE DISCLOSURE Packaging bags for bottles made of heat shrinking film and packaging bottles utilizing the bags can be prepared continuously with elimination of labor, good efficiency and good quality by from a long film sheet.   In the method of preparation of the packaging bags, a scrap piece formed at the closed end of the bag is discharged by mechanical methods. In one method, a long cylindrical film sheet is fed to the apparatus so as to place the portion of the film sheet forming the open end of the bag at the top and both sides of the scrap piece are cut and separated simultaneously. In another method, a long cylindrical film sheet is fed to the apparatus so as to place the portion of the film sheet forming the scrap piece at the top and scrap piece and periphery of closed end of the bag are cut simultaneously.   In the method of preparation of the packaging bottles, fitting of the packaging bag to the bottle is performed smoothly and automatically by widely opening the open end of the packaging bag by utilizing vacuum pads, inserting the bottle with a rod into the open end of the bag by utilizing a flapper, allowing partial heat shrinking of the bag for temporary fitting of the bag to the bottle and then tightly fitting the bag to the bottle by heating.
Patent CA-2047817-A1 (CA)
IPC: G09F13/04
Filed: 1991-07-24
Abstract: A removable and reinsertible arrow cover for a sign stencil.          The cover is equipped with an edge bevel, a tongue and an edge  snap rail  positioned  remotely  of  the  tongue  to facilitate snap action insertion and removal as well as a snug, flush fit which provides a closed seal to the passage of light with an arrow shaped void in the stencil. - -
Patent CA-2049804-A1 (CA)
Title: Process for electrochemical dehalogenation of organic contaminants
Inventor: DARIAN SAEED T
IPC: C25B3/25
Filed: 1991-08-23
Abstract: Abstract of the Disclosure A process for the electrochemical dehalogenation of halogenated organic compounds is provided which comprises combining in an electrochemical cell (a) at least one halogenated organic compound or a material comprising one or more halogenated organic compounds;     (b) at least one electrolyte-organic solvent in an amount effective to conduct electric current and which is a solvent for the halogenated organic compound;     (c)  at least one sufficiently soluble electroconductive salt in an amount of from about 0.0005 to about 0.02 M; and (d)  at least one sufficiently soluble electron transfer compounds wherein the electron transfer compound to salt ratio is from 0.1:1 to 20.1 weight percent; and then applying a voltage to the resulting mixture effective to remove any amount of halogen from said halogenated organic compound.
Patent CA-2050483-A1 (CA)
Title: Water-soluble stable arthropodicidally-active foam matrix and method of manufacture
Inventor: HAGARTY JOHN D
IPC: B65D83/28
Filed: 1990-04-10
Abstract: A novel arthropodicidally-active composition-of-matter is disclosed. Such an arthropodicidally-active composition-of-matter comprises an aqueous lower alkanol solvent, a toxicant contained within the solvent, and an effective amount of an emulsifier, also contained within the solvent, for forming a foam matrix of predetermined stability. Also disclosed are methods for producing such a composition-of-matter.
Patent CA-2050778-A1 (CA)
Title: Conveying and storage systems
Inventor: VAN DEN BERGH HUGO
IPC: F25D13/06
Filed: 1991-09-06
Abstract: ABSTRACT       A product-carrying tray 1 has longitudinally slotted end members 3 for sliding engagement on guide rails in a conveyor installation or storage unit.   Transverse edges 2 of the tray are provided with coupling members 5 for interengagement with other like units also accommodated on the guide rails.   In the illustrated embodiment, the coupling members 5 are defined by interengaging hook structures consisting of projecting portions 7 and laterally extending  end portions 6.   The tray of the invention is especially suited to accommodating food products within a storage or treatment chamber. The tray may however also serve as a product-carrying element in a conveyor installation.   Apart from the hook-type interconnection illustrated, a multiplicity of other interconnecting arrangements may be provided, including, inter alia, alternative mechanical structures and magnetic coupling.