baber/WOPTO huggingface dataset:
Patent CA-2069094-A1 (CA)
Title: Disinfecting system
Inventor: GU BEN
IPC: A61L2/18
Filed: 1990-11-20
Abstract: Contact lenses are disinfected by utilizing an N-alkyl-2-pyrrolidone as the microbicide. The efficacy of prior art microbicides such as chlorhexidene gluconate are enhanced by the addition of the pyrrolidones of this invention. The pyrrolidones suitable for use in the practice of this invention are the C8-C20 N-alkyl-2-pyrrolidones. Preferably the alkyl moiety is octyl, decyl or dodecyl. The pyrrolidones can be provided in solution or made available as a water soluble tablet.
Patent CA-2074019-A1 (CA)
Title: Electro-mechanical locking system
Inventor: PIPE GREGORY
IPC: E05B65/463
Filed: 1992-07-16
Abstract: A  file  storage  apparatus  (10)  has  a string or stack of drawer elements (14) vertically disposed along a side.  A  mechanical blocking shaft (28) is disposed on one side of the drawer (14) to allow only one drawer to be opened while blocking the  remaining  drawers  preventing  opening.    A locking bar (62) is disposed on a second side of the drawers (14)  for locking all of the drawers closed in response to an electrical access circuit (72) and for unlocking all of the storage units (14).   An actuator member (72) interacts between the access circuit (72) and the locking bar (62) for moving the locking bar (62) between an unlocked and locked position.
Patent CA-2074710-A1 (CA)
Title: Processing complex mineral ores
Inventor: NOTEBAART CORNELIS W
IPC: B03D1/02
Filed: 1992-07-27
Abstract: A B S T R A C T                 PROCESSING COMPLEX MINERAL ORES      A process for the recovery of metals from complex mineral ore material, which comprises k metals for the winning of at least i of said k metals, the process comprises: a)    a grinding step for grinding the ore material to liberate to an effective degree minerals comprising at least one of said i metals from gangue minerals; b)    a flotation conditioning step; c)    at least one flotation step for floating said ground ore material resulting in a flotation concentrate stream, and a flotation tailings stream, one of said streams containing a minerals concentrate comprising said i metals concentrated to an effective recovery; d)    a regrinding step for regrinding the minerals concentrate containing stream obtained in the flotation step in order to liberate to an effective degree minerals comprising at least one of said i metals and at most said i metals from gangue minerals; e)    an agglomeration conditioning step; f)    at least one agglomeration step in order to obtain an agglomeration concentrate stream containing a concentrate comprising agglomerates of said liberated minerals concentrated to an effective grade; and g)    a separating step for separating said agglomerates, thereby obtaining an agglomeration tailings stream containing gangue minerals and an agglomerates stream, said steps a) to g) resulting in a flotation-agglomeration procedure, with both high grade and high recovery as to said at least one of said i metals and at most said i metals.
Patent CA-2074751-A1 (CA)
Title: Liquid composition
Inventor: MUIJS HERMAN M
IPC: C21D1/58
Filed: 1992-07-28
Abstract: A B S T R A C T                                LIQUID COMPOSITION      The invention relates to a liquid composition in the form of a solution comprising a) an alkylated xylenesulphonic acid salt; b) a glycol having a molecular weight of between 200 and 1500; c) an aromatic, paraffinic or naphthenic oil; and d) less than 1 percent by weight of water, calculated on the total composition.
Patent CA-2078137-A1 (CA)
Title: Support de structure pour dispositif de stockage de l'energie d'un aimant supraconducteur
Inventor: WITHERS GREGORY J
IPC: F17C13/08
Filed: 1991-02-05
Abstract: Appareil de stockage d'énergie magnétique par supraconducteur comprenant une bobine supraconductrice cylindrique, une cuve de confinement de la bobine cylindrique qui abrite ladite bobine et est adaptée pour contenir un liquide tel que de l'hélium liquéfié, et un caisson d'aspiration d'air cylindrique abritant la cuve de confinement de la bobine et situé dans une structure de maintien dotée de parois circonférentielles externes et internes et d'un plancher. Ledit appareil comporte des éléments de compression horizontale entre (1) la bobine et la cuve de confinement de la bobine et (2) entre la cuve de confinement de la bobine et le caisson d'aspiration d'air, des éléments de support de compression entre le caisson d'aspiration d'air et les parois internes et externes de la structure de maintien, des éléments de support vertical (1) entre la paroi inférieure de la bobine et le fond de la cuve de confinement de la bobine et (2) entre le fond de la cuve de confinement de la bobine et le fond du caisson d'aspiration d'air, et des éléments de support externes entre le fond du caisson d'aspiration d'air et le plancher de la structure de maintien, ce qui permet d'absorber les charges développées par les modifications énergétiques et thermiques au sein de l'appareil et de préserver l'intégrité structural dudit appareil.
Patent CA-2079911-A1 (CA)
Title: High molecular weight polyvinylpyrrolidones and method for their preparation
Inventor: TAZI MOHAMMED
IPC: C08F26/10
Filed: 1991-03-28
Abstract: An uncrosslinked, water-soluble polyvinylpyrrolidone having a K-value in excess of 120 and containing less than about 0.1 percent by weight of residual monomer. A method for preparing the high molecular weight polyvinylpyrrolidone is also disclosed.
Patent CA-2081673-A1 (CA)
Title: Hydrocarbon conversion catalysts
Inventor: VAN VEEN JOHANNES A R
IPC: B01J29/14
Filed: 1992-10-29
Abstract: A B S T R A C T                 HYDROCARBON CONVERSION CATALYSTS      Composition of matter suitable as catalyst base in hydroprocessing comprising a crystalline aluminosilicate of the zeolite Y type, a binder and a dispersion of silica-alumina in an alumina matrix, wherein the composition comprises less than 25% by weight of the zeolite Y, more than 25% by weight of binder and at least 30% by weight of the dispersion.     The invention further relates to hydroconversion catalysts and processes based on such hydroconversion catalysts.     DFl/T5396FF
Patent CA-2082804-A1 (CA)
Title: Methods and compositions for treatment of angiogenic diseases
Inventor: MAIONE THEODORE
IPC: C07K14/52
Filed: 1991-07-24
Abstract: The subject invention pertains to novel compositions and methods for the treatment of tumors and angiogenic diseases.  Specifically, these novel compositions and methods comprise combination therapies where FR4, or biologically-active mutants or fragments of PF4, are combined with various angiostatic, antitumor, or immunomodulatory compounds to provide enhanced levels of therapy.
Patent CA-2084480-A1 (CA)
Title: Chain or cordage dispensing system
Inventor: WARDELL MYRON H JR
IPC: B65H49/02
Filed: 1992-12-03
Abstract: Abstract of the Disclosure An improved system for storing and dispensing chain or cordage  from a  container  such  as  a pail  with an easily removable opening in the lid which provides easy hand access to the chain or cordage without removing the lid and provides a convenient retainer for the loose end of the chain or cordage. The system includes a rectangularly shaped pail which allow the pail to be displayed in a normally horizontal position while allowing easy access to the contents.  The pail includes a lid which uses a uniquely shaped area of the lid defined by a perimeter of reduced thickness designed to be easily cut out or punched out with a hammer.  The resulting hole allows easy hand access to the chain or cordage and has a notch and retainer pegs at one side for hanging the loose end of the chain or cordage on for subsequent use.  The edge of the resulting hole features a tapered guide surface to aid the user in pulling chain from the pail.   An alternate embodiment shows another form of a retainer for the chain which utilizes a unique diaphragm shape in which the radially disposed fingers grip the chain when not in use.
Patent CA-2084907-A1 (CA)
Title: Hollow upper control arm for vehicle suspension system
Inventor: DELBEKE ROBERT G
IPC: B60G7/00
Filed: 1992-12-09
Abstract: ABSTRACT OF THE DISCLOSURE An upper control arm for a vehicle suspension system having a modulus section of hollow construction for reduced weight.  The modulus section of the control arm is of a stamped and welded construction thereby eliminating material weight while reducing the cost of manufacturing.  The modulus section has a substantially triangular configuration with a reinforced rim flange along the high compression stress area of  the control arm elbow.   The reinforced rim flange improves the strength of the control arm without sacrificing the weight reduction provided by the hollow construction.
Patent CA-2086004-A1 (CA)
Title: Fluid supply device
Inventor: SLATER CHRISTOPHER J
IPC: C02F3/20
Filed: 1991-06-24
Abstract: A fluid supply device for the controlled supply of fluid comprises a plurality of diffusers (14) arranged to lie in series (11a, b), flexible connection members (30) for flexibly interconnecting successive diffusers and a fluid supply means (32) for the supply of fluid from a source to said diffusers, each diffuser having at least an inlet portion for the supply of fluid thereto and an outlet matrix having a plurality of passages through which fluid may flow, said flexible connection members providing at least in part a structural link between successive diffusers of the series whereby when one diffuser is subject to a lifting force that force is transmitted by a flexible connection member to a successive diffuser.
Patent CA-2087037-A1 (CA)
Title: Apparatus and methods for magnetic separation
Inventor: LIBERTI PAUL A
IPC: G01N33/483
Filed: 1991-08-30
Abstract: Magnetic separation ap-paratus and method for sepa-rating colloidal magnetic parti-cles from a non-magnetic test medium in which the magnetic particles are suspended. The separator comprises a contain-er (23) holding the non-magne-tic test medium, one or more magnetic wires (25) disposed substantially within the test medium in the container and an external magnet (31) for producing a magnetic field gra-dient within the test medium.   According to the method of the invention, the container (23) holding; the test medium is po-sitioned in the separator (21), producing a magnetic field gra-dient operative to cause the magnetic particles to be attract-ed to the areas surrounding the magnetized wires (25) and to adhere to the wires. The non-magnetic test medium is separated from the magnetized particles, which may conveniently be washed while adhered to the wires, and subjected to further analysis, prefetably while on the wires. The apparatus and method are useful in separating various target substances from test media by means of substances coated on the magnetic particles which bind specifically to the target substance. A modified buffer solution, when added to the test medium, reduces non-specific binding of the magnetic colloid particles to cells.
Patent CA-2087607-A1 (CA)
Title: Bioreactor
Inventor: VELLINGA SJOERD HUBERTUS JOZEF
IPC: B01J4/00
Filed: 1991-07-05
Abstract: A bioreactor comprises a reactor vessel (1) having an inlet system for influent or a mixture of influent and recycled material and a reaction chamber located above this system. In order to produce an excellent distribution of the influent (which may be mixed with recycled material) without there being a risk of blockage and without excessive wear problems arising, the outflow openings of the influent inlet system (12) are at least partially tangentially oriented and the influent inlet system is located in a chamber (2) which is separated from the reaction chamber by a partition which has at least one radial slit (13), formed by two radial edge strips (4a; 4b) overlapping one another some vertical distance apart, which radial slit forms the connection between the said influent inlet chamber and the reaction chamber.
Patent CA-2087854-A1 (CA)
Title: Twin-headed toothbrush
Inventor: BRICE MICHAEL F
IPC: A46B9/04
Filed: 1991-07-23
Abstract: A new and improved toothbrush (1, 10, 20) has a pair of discreet twin brushing heads (5, 6, 14, 15, 24, 25). Each head is attached to the handle portion (2, 11, 21) at a predetermined angle relative to the handle portion. The heads are arranged in a side-by-side manner with the angle of the heads tilted in the opposite direction relative to the handle portion. In one embodi-ment, the heads (5, 6) are fixed relative to the handle portion (2). In another embodiment, the heads (14, l5) are fixed relative to a handle portion (11), but the handle portion flexes when sufficient pressure is applied to the brushing heads during brushing. In still another embodiment, each head (24, 25) pivots independently of the other head about a base head (40) which is attached to the handle potion (21). One unique aspect about the twin-headed toothbrush is that the toothbrush is specifically designed to be used with a conventional brushing technique that the majority of the people are accustomed to, but provide an effective cleaning of teeth and gum surfaces.
Patent CA-2090730-A1 (CA)
Title: Heater for an effusion cell
Inventor: LEVOLA TAPANI
IPC: C30B23/06
Filed: 1990-08-24
Abstract: The invention relates to effusion cell used in Molecular Beam and Chemical Beam Epitaxy systems. Effusion cell includes a crucible (27) for source material and a heater (16, 20) for heating the crucible. According to the invention the heater (16, 20) for the crucible (27) mainly consists of two coils (16a, 16b) made of thin foil ribbons which have been corrugated to make ribbon stiffer.  The foil ribbon (16a, 16b) is concave or the cross section is arched. The ribbon is placed into the grooves (35) of a holder (20).  At the end of the effusion cell the corrugated foil ribbons (16a, 16b) have been interconnected by a foil ring (14) with the connecting cross-sectional area less than the cross-sectional area of the foil ribbon.
Patent CA-2091129-A1 (CA)
Title: Urea granules coated with melamine powder
Inventor: SZOELGYENYI GERALD
IPC: A23K50/15
Filed: 1993-03-05
Abstract: Abstract Urea granules coated with a powder in order to prevent clumping, where the powder coating comprises from 0.01 to 0.6 % by weight of melamine, based on the total weight of the urea granules.
Patent CA-2092391-A1 (CA)
Title: Multiple set pressure sealer rollers
Inventor: DOWNING RICHARD S
IPC: B43M5/04
Filed: 1993-03-24
Abstract: Pressure sealing of business forms is effected utilizing first and second sets of (preferably narrow-width) rollers forming first and second nips which provide a sealing force to business forms passing between them. The first set of rollers are rotatable about first and second axes, typically horizontal, while the second set of rollers are rotatable about third and fourth axes. The third and fourth axes are substantially perpendicular to the first and second axes, and may be horizontal or vertical. The first set is typically provided above the second set, and a conveyor may be provided for conveying forms which drop from the first set into operative association with the second set.
Patent CA-2092637-A1 (CA)
Title: Glycolipids for serodiagnosis of tuberculosis and leprosy
Inventor: LASZLO ADALBERT
IPC: C07H7/033
Filed: 1993-03-12
Abstract: ABSTRACT OF THE DISCLOSURE      A method of testing for tuberculosis and leprosy in animals, or humans and antigens used in the method.  The method involves carrying out an assay on sera from said humans or animals using an antigen to bind antibodies in said sera.  The antigens used in the method are synthetic pseudo cord factor-like glycolipids having the structures (I) or (II) below:                                   (I)  (II) wherein R represents a straight or branched chain alkyl group having 15 to 18 carbon atoms.  The antigens can be produced by chemical synthesis, and can therefore be made available in suitable quantities, and are relatively stable at ambient temperatures while showing good sensitivity and specificity for tuberculosis and leprosy.  The antigens can be used, for example, for enzyme-linked immunosorbent assays, and related "spot tests", for diagnosing tuberculosis and leprosy.
Patent CA-2093941-A1 (CA)
Title: Continuous process for the preparation of n-alkylethylenediamines
Inventor: SU WEI-YANG
IPC: C07C211/10
Filed: 1993-04-13
Abstract: A CONTINUOUS PROCESS FOR THE PREPARATION OF           N-ALKYLETHYLENEDIAMINES                          (D# 81,098-F) ABSTRACT OF THE DISCLOSURE     A continuous process for the preparation of N-alkylethylenediamines by the reaction of ethylene-diamine and an aliphatic aldehyde having at least 8 carbon atoms in the presence of hydrogen and a hydrogenation catalyst is disclosed.
Patent CA-2094558-A1 (CA)
Title: Polymer blends of cycloolefin polymers and polyolefins
Inventor: EPPLE ULRICH
IPC: C08F232/00
Filed: 1993-04-21
Abstract: Abstract Polymer blends of cycloolefin polymers and polyolefins For producing 100 parts by weight of a polymer blend 0 to 95 parts by weight of a finely divided polyolefin, 0 to 95 parts by weight of finely divided cycloolefin polymer and 0.1 to 99 parts by weight of a blockpolymer (which consists of monomeric units derived from norbornen and monomeric units derived from aliphatic monocycloolefins CnH2n and/or aliphatic 1-olefin, such as ethylene or propylene, are mixed and the mixture is processed under heat and shear forces. The block copolymer acts as phase mediator and contains in different blocks different proportions of the monomer units used.
Patent CA-2097876-A1 (CA)
Title: Horseshoe
Inventor: JARVINEN ERKKI
IPC: A01L7/02
Filed: 1993-06-07
Abstract: Abstract The object of the invention is a horseshoe, which includes a flat sandwich construction component that essentially corres-ponds to the form of a horse's hoof and well as devices (3, 9) for attaching the sandwich construction component to the hoof, when the sandwich construction component includes a flexible layer (5) which absorbs impacts and which is attached to an essentially stiff support layer (4). In order for the horseshoe to reduce the stresses on the horse's legs as wells, as being simultaneously light and easily and firmly attached to the horse's hoof, it is characteristic that the flexible layer (5) is located between the aforementioned stiff support layer (4) and a second essentially stiff layer (1) in such a way that the stiff layers (1, 4) are completely separated by the flexible layer (5)   while making possible the movement of the stiff layers in every direction in relation to each other by means of the flexible layer. The stiff layer (1) of the sandwich con-struction component that lies away from the hoof includes holes (2) for horseshoe nails (3).
Patent CA-2101836-A1 (CA)
Inventor: DUCHARME PIERRE
IPC: A63B5/20
Filed: 1993-08-03
Abstract: PRÉCIS La présente invention consiste en un support servant à maintenir la corde à sauter chinoise (ou jeux de l'élastique) à différents niveaux, éliminant ainsi le besoin d'être au moins trois personnes pour jouer, soit deux qui tiennent la corde à chaque extrémité et une qui saute.
Patent CA-2104062-A1 (CA)
Inventor: LEE HARRY W JR
IPC: B21D22/14
Filed: 1993-08-13
Abstract: A method and apparatus for spin flow necking-in a D&I can is disclosed wherein an externally located free spinning form roll is moved radially inward and axially against the outside wall of the open end of a trimmed can.  A spring-loaded interior support slide roll moves under the forming force of the form roll as the latter slides along a conical forming surface of a second free roll mounted axially inwardly adjacent the slide roll.  To prevent damage to the metal caused by excessive pressure contact between the form and slide rolls, the slide roll is axially retracted via a cam ring which initially contacts the form roll during radially inward necking movement.
Patent CA-2109394-A1 (CA)
Inventor: PAWELSKI ROBERT L
IPC: H04L12/56
Filed: 1993-10-27
Abstract: To efficiently implement the algorithm for branching each broadcast call as close to the output of a multi-stage switching fabric as possible, the path hunt for a call path is performed by examining the actual contents of control memories (in time slot interchangers (131,141) and time-multiplexed switch (120)) that control the switching stages of the switching system, in order to determine whether - and if so, where - the desired call path may be branched from an existing call path inside of the switching system. For efficiency and speed, the examination is performed by monitoring control memory contents being read out for the purpose of controlling the switching stages, and contents of control memories of multiple stages are monitored in parallel using dedicated monitoring hardware. To avoid the need to examine the control memories' contents in order to determine how much of a call path can be torn down without breaking call path segments shared with other existing call paths, separate counts are kept of instances of present use of connections between stages of the switching fabric, which counts are incremented upon creation of any branching paths that use these connections and are decremented upon breaking of any branching paths that use these connections. <IMAGE>
Patent CA-2109676-A1 (CA)
Title: Multiple use corner clip
Inventor: MENCHETTI ROBERT J
IPC: E04B2/74
Filed: 1993-11-22
Abstract: A hollow shaft wall stud corner clip adjoins ends of horizontal studs at a shaft wall structure corner and is readily adaptable for supporting core boards in a fire rated ceiling or a fire rated duct and for holding core board in place at a top or a bottom of a horizontal stud hollow shaft wall. The clip has a central web for position-ing against a stud or track flange and an angled flange with a core board-supporting extremity.
Patent CA-2114823-A1 (CA)
Inventor: MAUSS DIETER
IPC: B27N3/14
Filed: 1994-02-01
Abstract: ABSTRACT OF THE DISCLOSURE         A spreader for glue-coated particles for the production of particleboard in a steel belt continuous press has a clump breaker with at least two disintegrating rollers which are provided with circumferential rows of equispaced teeth which rows are equispaced axially along each roller. The rows of teeth of the two rollers interdigitate to form a gap of meandering shape. The disintegrating capacity of the clump breaker depends on the gap width. The clump breaker substantially prevents local regions of higher density or more compact character in the particleboard and, thus, also reduced damage to the press caused by those regions of higher density.
Patent CA-2114961-A1 (CA)
Inventor: MATHIOUDAKIS PETER
IPC: B60S1/48
Filed: 1994-03-21
Abstract: Le système de lave-glace pour automobile consiste en un réservoir, une pompe, deboyaux et de deux gicleurs. Lorsque le réservoir de lave-glace est plein, le conducteur appuie sur la commande pour actionner le jet. Dans la présente invention, le système de lave-glace est assisté d'un système auxiliaire. Lorsque le réservoir principal de lave-glace est vide, le système auxiliaire sera alors activé par le conducteur. Présentement, lorsque le réservoir principal de lave-glace est vide, le conducteur doit verser le liquide lave-glace d'un bidon. La plupart du temps, le réservoir principal ne contient pas 4,5 L (quantité d'un bidon). Le conducteur est donc limité quant à la quantité de lave-glace dans le réservoir.