baber/WOPTO huggingface dataset:
Patent CA-2236763-A1 (CA)
Inventor: MEYER CHARLES
IPC: F16B19/10
Filed: 1998-05-06
Abstract: A plastic rivet is composed of a resilient material and has a drive pin and a body. Drive pin has a head and a shank. Distal end of shank has a pair of resilient legs, and proximal end of shank has a transverse hole forming deflectable walls. A first pair of protrusions project radially outwardly from the legs, and a second pair of protrusions project radially outwardly from the walls. Body has a head and elongated portion insertable into holes in members to be joined. The elongated portion is comprised of a pair of outwardly tapered longitudinal members projecting from the head and interconnected by an inwardly tapered nose. Shank of drive pin is insertable into a passage which extends through the head and elongated portion of the body. When drive pin is predriven into the body, the first pair of protrusions engages into slots in the passage, retaining the drive pin within the body. As drive pin is driven into the body, legs and walls deflect inwardly. When drive pin is fully driven into body, the first pair of protrusions engage with mating surfaces formed at the distal ends of the longitudinal members, the second pair of protrusion engage with the slots, and the shank of the drive pin and the longitudinal members form a substantially solid member. Thus, the extraction of the drive pin from the body is opposed by a retention force, and extraction of the body from the holes of the joined members is opposed by a retention force.
Patent CA-2237297-A1 (CA)
Title: Process for the preparation of (1s,4r)-or(1r,4s)-4-(2-amino-6-chloro-9h-purin-9-yl)-2-cyclopentene-1-methanol
Inventor: BOSSARD PIERRE
IPC: C12P13/02
Filed: 1998-05-11
Abstract: A novel process for the preparation of (1S,4R)- or (1R,4S)-4-(2-amino-6-chloro-9H-purin-9-yl)-2-cyclo- pentene-1-methanol of the formula:   is described. This entails in a first stage acylating (~)- 2-azabicyclo[2.2.1]hept-5-en-3-one of the formula:   to give a (~)-2-azabicyclo[2.2.1]hept-5-en-3-one derivative of the general formula:   in which R1 denotes C1-4-alkyl, C1-4-alkoxy, aryl or aryloxy, the latter being reduced in a second stage to give a cyclopentene derivative of the general formula:   in which R1 has the stated meaning. The cyclopentene derivative V is then converted in a third stage biotechnologically into a (1R,4S)- or (1S,4R)-1-amino-4- (hydroxymethyl)-2-cyclopentene of the formula:   the latter being converted in a fourth stage with N-(2- amino-4,6-dichloro-5-pyrimidinyl)formamide of the formula:   into a (1S,4R)- or (1R,4S)-4-[(2-amino-6-chloro-5- formamido-4-pyrimidinyl)amino]-2-cyclopentene-1-methanol of the formula:   Finally, the compound of forumula IX or X is cyclized in a fifth stage in a known manner to form the final product of formula I or II.
Patent CA-2243489-A1 (CA)
Title: Methode de fabrication d'isolant thermique de bulles d'air et films d'aluminium ou metallise pour contenants servant a conserver les aliments
Inventor: PERRON MAURICE
IPC: B32B37/12
Filed: 1998-08-21
Abstract: La méthode consiste en une couche de matière isolante ayant une pellicule de matière réfléchissante apposée sur une ou deux faces. La couche de matière isolante peut être un isolant spongieux conventionnel ou un isolant formé de bulles d'air piégées par des pellicules en résine polymère. Les couches isolantes sont recouvertes d'un tissu méché, d'une matière spongieuse, d'un plastique ou tous autres textiles afin d'obtenir un revêtement fini pouvant être différent d'un côté à l'autre.
Patent CA-2243491-A1 (CA)
Inventor: DE RISI FELICE
IPC: B60V1/11
Filed: 1997-11-14
Abstract: A hydraulic system for the control of boats, ships and crafts in general that comprises nozzles (1, 2) opposed at the end of the stem, having a Venturi tube throttling (8) or an internal diameter reduction by means of flanges (10), so as to be able to determine, following to the outlet of the fluid under pressure, the movement by reaction of the front part of the boat (N) and therefore to perform immediate leftward or rightward curvings according to the nozzle used, and/or corresponding nozzles (3, 4), placed nearby the stern and with similar backward function, while the operating for hydraulic reaction of both nozzles placed on the same side determines the parallel movement of the whole craft, for coming alongside to quays or for performing other manoeuvres.
Patent CA-2248992-A1 (CA)
Title: Self-regulating water purification composition
Inventor: BOLLINGER MARK A
IPC: C02F1/50
Filed: 1997-04-04
Abstract: The invention relates to a water purification composition including silver metal and a second metal. The second metal is relatively reducing and helps control the overall silver cation concentration in solution. The composition effectively disinfects and removes toxic metal ions from water.
Patent CA-2250993-A1 (CA)
Inventor: RAU GUENTER
IPC: A61M60/135
Filed: 1997-04-02
Abstract: The intravascular blood pump proposed has a drive unit (11) and, rigidly connected to it, a pump unit (12), the blood pump being connected to a catheter (13) enabling it to be inserted into a blood vessel (10). The tubular housing (15) of the pump unit (12) is fitted with a blocking device (20) which separates the suction side (21) from the delivery side and thus prevents the pump being bypassed.
Patent CA-2254951-A1 (CA)
Inventor: OKRAGLIK HENRY
IPC: G06Q10/00
Filed: 1997-02-03
Abstract: La présente invention concerne un système automatisé de vente au détail et un appareil de passation de commandes à distance, qui peut être utilisé dans ledit système, lequel comprend un certain nombre de ces appareils, au moyen desquels l'utilisateur peut faire la preuve de son identité et commander des produits depuis un lieu éloigné ou se faire remettre un produit sur place lorsque ce produit est disponible à l'emplacement de l'appareil. Le système se prête à la mise en réseau, ce qui facilite la conduite de campagnes de vente organisées.
Patent CA-2255121-A1 (CA)
Title: Compositions d'erythrocytes et procedes permettant de prelever et de stocker les erythrocytes
Inventor: BUCHHOLZ DONALD H
IPC: A01N1/00
Filed: 1998-02-25
Abstract: La présente invention concerne des procédés permettant de prélever des érythrocytes, procédés selon lesquels on associe le sang total à un anticoagulant, on sépare les érythrocytes du sang total et on associe les érythrocytes séparés à une solution de stockage. Les érythrocytes peuvent être stockés pendant une longue période de temps.
Patent CA-2255824-A1 (CA)
Inventor: JHAMANDAS KHEM
IPC: C07D327/04
Filed: 1997-05-30
Abstract: Aliphatic nitrate esters having a sulfur or phosphorus atom .beta. or .gamma.  to a nitrate group and their congeners having efficacy as neuroprotective agents are described. Preferred nitrate esters may be synthesized by nitration of a 3-bromo-1,2-propanediol, and subsequent reaction to yield the desired mono-, di- or tetra-nitrate ester.
Patent CA-2258117-A1 (CA)
Title: Artifice de lutte contre le peril aviaire
Inventor: TOUGERON RAYMOND
IPC: A01M29/16
Filed: 1997-06-11
Abstract: Cet artifice destiné à disperser les oiseaux dans les zones d'aéroport comprend un projectile autopropulsé comportant un élément d'allumage à retardement (15, 18, 27, 29) et une charge à effet sonore (9) destinée à effrayer les oiseaux et logée dans ledit projectile.
Patent CA-2264472-A1 (CA)
Inventor: FUST GUNTRAM
IPC: H01H19/10
Filed: 1999-03-05
Abstract: The invention relates to an actuator for a safety switch provided with at least one insertion slot with inclined insertion guides for the actuator, having a holder which can be fastened to a part whose open and closed positions are to be monitored, and which is fitted with the key mounted on it such that the said key can be moved, the key comprising a foot, and the holder being provided with a recess for the key on the side facing the key and with a bearing for the foot, the said bearing extending around the recess and allowing the foot to be displaced and rotated.
Patent CA-2268029-A1 (CA)
Title: Therapeutic and diagnostic applications of laminin and laminin-derived protein fragments
Inventor: CASTILLO GERARDO
IPC: C07K14/78
Filed: 1997-10-08
Abstract: The invention relates to the discovery, identification and use of laminin, laminin-derived protein fragments, and laminin-derived polypeptides, as well as related peptides and antibodies, for the therapeutic intervention and diagnosis of Alzheimer's disease and other amyloidoses. In addition, the discovery and identification of an Alzheimer's beta-amyloid protein specific binding within the globular domain repeats of the laminin A chain, had led to new diagnostic and therapeutic applications for Alzheimer's disease and other amyloidoses which are disclosed.
Patent CA-2270750-A1 (CA)
Title: Extraction process and use of yellow mustard gum
Inventor: DUAN ZHI ZHONG
IPC: C08B37/00
Filed: 1999-04-30
Abstract: The present invention provides for optimal extraction conditions for extracting yellow mustard gum from yellow mustard bran to provide for high yield. The four variables examined were extraction temperature, pH, water:solid ratio and extraction time. Of these variables, temperature and pH had a much greater influence on the yield and rheological properties of the extracted gum compared to water/solid ratio and extraction time. Optimum extraction conditions were temperatures between 50-70°C, pH 7-10, water/solid ratio of 40:1 - 60:1 and extraction time of 2-2.5 hr. The yield of gum obtained under the optimum extraction conditions was 30% of bran weight. The extracted gum exhibited maximum shear thinning flow behaviours. It can be incorporated into cosmetic products and skin lotions.
Patent CA-2271304-A1 (CA)
Title: System and method for tuning and controlling an ultrasonic handpiece
Inventor: BOUKHNY MIKHAIL
IPC: B06B1/04
Filed: 1997-09-09
Abstract: A system and method for tuning and controlling ultrasonic handpieces by incorporating a broad-spectrum signal as at least a component of the signal used to drive the handpiece. The response of the handpiece to this broad-spectrum signal is measured and the frequency or amplitude or both of the drive signal are adjusted in order to maintain the desired level of handpiece performance. The operation of the systems and the performance of the methods described enable the handpiece to be operated in a most effective manner over a more widely varying range of mechanical load and thermal conditions than was possible through the use of prior control systems and methods.
Patent CA-2272799-A1 (CA)
Inventor: POLLOCK PAUL
IPC: B21K1/74
Filed: 1999-05-26
Abstract: A one-piece steering knuckle assembly for vehicles has a flanged body wherein the tie rod arm, hydraulic brake caliper bracket and, in some instances, the steering arm extend from the flanged body in a one-piece forged manner. There are enlarged bosses extending from the flanged body opposite the wheel spindle, the bosses having a bore which are axially aligned to receive a king pin. The flanged body, wheel spindle, tie rod arm and brake caliper bracket are all formed from a single steel billet as a one-piece heavy duty forging. Such a design eliminates the brake caliper/knuckle joint and the tie rod arm/knuckle joint, and thus, it results in savings in assembly time and weight.
Patent CA-2276826-A1 (CA)
Inventor: TUCKER GRAHAM HAROLD
IPC: F41H11/12
Filed: 1999-07-14
Abstract: The Machine for which a patent is requested is a Land Mine Disposal unit designed to clear a four foot path through a mine field , by safely detonating the antipersonnel mines. This is achieved by concentrating pressure through 14 steel detonator contacts which allow the explosion to be discharged with minimum resistance and little or no damage to the detonator contacts or the unit.
Patent CA-2277327-A1 (CA)
Title: Stable light or heat activated dental bleaching compositions
Inventor: JENSEN STEVEN D
IPC: A61K8/00
Filed: 1997-10-10
Abstract: Dental bleaching compositions are made with a bleaching agent and a stable radiant-energy absorbing compound that acts as a bleaching agent activator.  The dental bleaching compositions of the present invention can be one-part, pre-mixed compositions that do not require mixing at the time of treating a patient's teeth but which remain stable over time. The bleaching agent may consist of hydrogen peroxide, either in aqueous form or complexed with urea (carbamide peroxide) or sodium perborate. The bleaching agent activator includes hydrocarbons that are stable in the presence of the bleaching agent, which do not prematurely accelerate liberation of the bleaching agent, but which allow for selective activation of the bleaching agent by irradiation of the bleaching composition with radiant energy. The bleaching composition may optionally include a neutralizing agent to adjust the pH, a carrier to help provide proper consistency and potency, and a stabilizing agent to maintain maximum potency of the bleaching agent over time. The bleaching composition may also include a thickening agent to achieve a selected viscosity. The dental bleaching compositions may be adapted to be loaded into and delivered from a syringe.
Patent CA-2279116-A1 (CA)
Title: Automotive manufacturing system for frame component
Inventor: KIMURA MITSUHIRO
IPC: B62D65/02
Filed: 1999-07-27
Abstract: A method and system for the manufacture of an assembly, such an automobile body-in-white or sub-assembly, that comprises a plurality of components is disclosed.  Selected from the plurality of components are components which can form an initial rigid structure. These selected components are then positioned relative to each other with reference to at least one reference point on at least one of the selected components. These selected components are then affixed to one another, by, for example, spot welds to form the initial structure. The non-selected components are then positioned relative to the same reference point and attached to either the initial structure or a component that was affixed in an earlier process. An assembly, such as an automobile body-in-white, will have reduced manufacturing tolerances when compared to the body-in-white manufactured in a conventional manner.
Patent CA-2279485-A1 (CA)
Title: Valve operating system for internal combustion engine
Inventor: KABURAGI AKIRA
IPC: F16H25/00
Filed: 1999-08-03
Abstract: In a valve operating system for an internal combustion engine, wherein connected and disconnected states of cam followers can be switched over from one to another to change the valve operating characteristic of an engine valve, each cam follower includes a cam follower body having a pair of support walls integrally provided thereon and arranged in parallel to sandwich a roller therebetween, and a hollow roller shaft which is fitted and supported at outer peripheries of its opposite ends in through-bores in the support walls, and which has the roller rotatably carried at its intermediate portion.      A first groove is defined in an outer peripheral surface of the through-bore in one support wall to extend circumferentially of the through-bore, and a second groove is defined in an outer peripheral surface of the roller shaft at its one end corresponding to the first groove. A C-shaped resilient fastener is mounted in the first and second grooves and is capable of engaging with inner surfaces of the grooves astride them. The switching pin is slidably fitted to inner peripheral surfaces of the roller shafts of adjacent cam followers. With such arrangement , the roller shaft of the rollered cam follower can simply be fixed to the support wall of the cam follower body without caulking equipment, and a protrusion for fixing the roller shaft is not created on an outer surface of the support wall. The roller shaft is also used as a portion of a cam follower connecting mechanism. The roller can be rotated smoothly on an outer peripheral surface of the roller shaft, and the switching pin can be slid smoothly on an inner peripheral surface of the roller shaft.
Patent CA-2283794-A1 (CA)
Title: Proteines vp22 et leurs utilisations
Inventor: ELLIOTT GILLIAN DAPHNE
IPC: C07K14/035
Filed: 1998-03-23
Abstract: On utilise des protéines VP22 du virus herpétique (ou leurs variants) pour modifier une structure cellulaire ou une division cellulaire, en raison de leur propriété, récemment découverte, de liaison aux microtubules dans des cellules. Une utilisation de la VP22 pour exploiter cette propriété consiste à stabiliser in vivo ou in vitro des microtubules cellulaires d'animaux (c'est-à-dire à retarder ou arrêter la division cellulaire, ou à provoquer la dégénérescence cellulaire). La fonction de liaison de la VP22 aux microtubules peut être exploitée par l'utilisation d'un réactif in vitro pour étudier les microtubules ou le cycle cellulaire, particulièrement au niveau de la division cellulaire; elle peut également être exploitée pharmaceutiquement pour retarder ou arrêter in vivo ou in vitro la division de cellules telles que les cellules néoplastiques ou les cellules parasites protozoaires.
Patent CA-2284828-A1 (CA)
Inventor: BOSKAMP JELLES VINCENT
IPC: C11D17/00
Filed: 1998-03-18
Abstract: Detergent compositions in the form of tablets for fabric washing contain, at least 30 % but preferably not over 56 % of particles which contain most or all of the non-soap surfactant so that this provides from 20-50 % of these particles, which also contain water soluble detergency builder. The non-soap surfactant is a mixture of anionic and non-ionic surfactants where the amount of anionic surfactant is at least 1.5 times the amount of non-ionic surfactant. These particles are accompanied by at least 15 % of material which is other than soap or organic surfactant and which promotes rapid dissolution and disintegration of the tablet composition. The preferred material is sodium tripolyphosphate containing a majority of the phase (I) anhydrous form, and partially hydrated so as to contain from 1-4 % by weight of water of hydration. The particles form a network which gives both strength and elasticity to the tablet prior to use, while the water soluble material accompanying the particles, promotes rapid dissolution and disintegration at the time of use, thus giving an improved combination of strength when handled, resistance to breakage in transit, and speed of disintegration.
Patent CA-2284911-A1 (CA)
Title: Polymerization of mono-and disaccharides using low levels of mineral acids
Inventor: CRAIG STUART ANDREW SHAW
IPC: C08B37/00
Filed: 1998-03-19
Abstract: Various polysaccharides are prepared by reacting glucose or glucose-containing materials such as hydrolyzed starch with a polyol such as sorbitol in the presence of mineral acids such as phosphoric, hydrochloric and/or sulfuric acid. In one embodiment, polydextrose is prepared by reacting glucose or glucose-containing materials such as hydrolyzed starch with a polyol such as sorbitol in the presence of low levels, i.e., from about 0.001 % to about 0.09 %, more narrowly from about 0.01 % to about 0.06 %, phosphoric acid. In other embodiments, other mineral acids or mixtures thereof may be employed. In alternate embodiments, a combination of mineral and organic carboxylic acids such as citric acid are employed. Because of the low levels of catalyst used in certain preferred embodiments, minimal or no off-flavors and little color are formed during the course of the reaction.
Patent CA-2286703-A1 (CA)
Title: Brominated polystyrenic resins
Inventor: AO MENG-SHENG
IPC: C08F8/20
Filed: 1998-04-07
Abstract: This invention relates to a thermally stable brominated polystyrene having less than 100 ppm total Cl-, above 68 wt.% bromine and less than 6,000 ppm hydrolyzable halide. The brominated polystyrene exhibits little or no polymer cross-linking or chain cleavage relative to the starting polystyrene.
Patent CA-2287518-A1 (CA)
Title: A novel th2-specific gene
Inventor: LEVINSON DOUG
IPC: C12N15/12
Filed: 1998-04-17
Abstract: The present invention relates to the discovery, identification and characterization of nucleic acids that encode a novel protein differentially expressed within the TH2 cell subpopulation (hereinafter referred to as STIF).  The invention encompasses <u>STIF</u> nucleotides, host cell expression systems, STIF proteins, fusion proteins, polypeptides and peptides, antibodies to the STIF protein, transgenic animals that express a <u>STIF</u> transgene, or recombinant knock-out animals that do not express the STIF protein, and compounds that modulate <u>STIF</u> gene expression or STIF activity that can be used for diagnosis, drug screening, clinical trial monitoring, and/or used to treat STIF based disorders, such as proliferative disorders and T-lymphocyte-related disorders including, but not limited to, chronic inflammatory diseases and disorders, such as Crohn's disease, reactive arthritis, including Lyme disease, insulin-dependent diabetes, organ-specific autoimmunity, including multiple scleroris, Hashimoto's thyroiditis and Grave's disease, contact dermatitis, psoriasis, graft rejection, graft versus host disease, sarcoidosis, atopic conditions, such as asthma and allergy, including allergic rhinitis, gastrointestinal allergies, including food allergies, eosinophilia, conjuctivitis, glomerular nephritis, certain pathogen susceptibilities such as helminthic (e.g., leishmaniasis) and certain viral infections, including HIV, and bacterial infections, including tuberculosis and lepromatous leprosy.
Patent CA-2288553-A1 (CA)
Title: Blocks for elevating bed legs
Inventor: ULLMAN MYRON E JR
IPC: A47C19/02
Filed: 1999-11-04
Abstract: A pair of stackable, nestable blocks for elevating the leg of a bed to a plurality of selectable heights employs first and second blocks that each have upper and lower ends, with reces-ses being provided in at least one of the ends of each block that can be oriented upwardly to receive and support the foot or lower end region of a bed leg. Each block has a different length, which enables each block, used separately, to support the bed leg at a different height. Recesses of differing depths preferably are provided in opposite ends of at least one of the blocks, whereby the block or blocks that have dual-depth recesses can be inverted to provide bed leg support at two different heights. One of the two blocks preferably has a larger size than the other and is pro-vided with recess (es) large enough to receive and support one or both of the end regions of the other of the blocks, whereby the smaller-size block can be stacked and nested atop the larger-size block to provide still more bed leg elevation heights. Five heights may be provided utilizing two blocks of different length and size if only one of the blocks is provided with different depth recesses. Additional bed leg elevation heights may be pro-vided if both blocks have different depth recesses in their oppo-site ends.
Patent CA-2289984-A1 (CA)
Title: Semiconductor micro-resonator device
Inventor: HO SENG-TIONG
IPC: H01S5/343
Filed: 1998-04-27
Abstract: An optical, semiconductor micro-resonator device includes a microcavity resonator (12) and a pair of adjacent waveguides (14, 16). The microactivity resonator has a curved diameter of approximately 56000*lambda.lg/n.res or less where lambda.lg is the longest operating wavelength of light and n.res is the propagating refractive index. Light propagating in the first waveguide (14) with a wavelength on resonance with the microcavity resonator is coupled to the second waveguide (16) for output therefrom. Light propagating in the first waveguide (14) with a wavelength that is off resoance with the microcavity resonator continues to propagate in the first waveguide (14) for output therefrom.