baber/WOPTO huggingface dataset:
Patent CA-2181573-A1 (CA)
Title: Apparatus and method to reduce restenosis after arterial intervention
Inventor: WEINBERGER JUDAH Z
IPC: A61M25/00
Filed: 1995-01-20
Abstract: This invention is an apparatus guided by a guide wire (9) within a patient's artery for reducing restenosis after arterial intervention in the patient's artery. A radiation dose delivery wire (8) with a radiation source (8d, 8e, 8f) encapsulated within its distal end is inserted into a blind lumen (7) in a balloon catheter (5) to deliver radiation to a target area of the patient's artery.
Patent CA-2183914-A1 (CA)
Inventor: REDNER CARL R
IPC: F24F8/158
Filed: 1996-08-22
Abstract: The air purifier is used in a forced air heating and cooling system. It includes a cabinet assembly having therein a removable adsorber media carrier assembly. The carrier assembly includes a plurality of removable and refillable adsorber tubes provided with pelletized activated carbon or other adsorption media. The adsorber tubes are made from wire mesh and are arranged in rows with the air flowing through the cabinet assembly striking and impinging on the adsorber tubes in order to purify the air.
Patent CA-2184104-A1 (CA)
Inventor: KODAMA HIROKI
IPC: C07D303/08
Filed: 1996-08-23
Abstract: A process for producing optically active 2-halo-1-(substituted phenyl)ethanol of a formula (Ia) or optically active styrene oxide of a formula (Ib).  The process comprises the steps of reacting a compound of a formula (II) with phthalic anhydride to give a compound of a formula (III), performing optical resolution on the resulting compound using an optically active organic amine as a resolving agent, and finally performing hydrolysis or alcoholysis on the optically resolved compound (Ia) or (Ib). The scheme of the above process is:                                   (II) (III)      or      (Ia) (Ib) wherein X represents a halogen atom, Y represents a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a C1-C6 alkoxy group, a C1-C6 haloalkyl group or a C1-C6 haloalkoxy group, Z represents a hydrogen atom, a halogen atom or a C1-C6 alkyl group, n is 0 or an integer of 1 to 3 and m is 0 or an integer of 1 to 2. The resulting optically active compounds are useful as an intermediate for medicines.
Patent CA-2186426-A1 (CA)
Title: Emulsifier system for water-dilutable epoxy resin system with pot life indication
Inventor: PFEIL ARMIN
IPC: C09K23/52
Filed: 1996-09-25
Abstract: An emulsifier composition for water-dilutable epoxy resins comprise condensation products of an aliphatic polyol component having a weight-average molar mass (Mw) of from 200 to 20,000 g/mol, where a mass fraction of at least 5%, has a weight-average molar mass (Mw) of at least 4000 g/mol, and an epoxide component having of at least one epoxide compound having at least two epoxide groups per molecule and an epoxide group content of from 500 to 10,000 mmol/kg, the ratio of the number of hydroxyl groups to that of the epoxide groups z(OH):z (EP) being from 1:3.51 to 1:10. When the emulsifier is used for the preparation of aqueous epoxy resin systems, the end of the pot life is indicated by a sharp rise in viscosity.
Patent CA-2191355-A1 (CA)
Inventor: PAGE JERRY L
IPC: G01L1/00
Filed: 1996-11-26
Abstract: A force detecting microsensor comprises a single crystal Si substrate, a single crystal cone formed on the substrate and a resilient electrode mounted above the tip of the Si cone. The space between the tip of the Si cone and the resilient electrode is maintained in a vacuum environment and the distance between the tip and the resilient anode is in the order of a few atomic diameters. The tunneling effect of electrons occurs between the tip of the Si cone and the resilient electrode when a potential is applied to the resilient electrode and the Si cone tip. The resilient electrode deflects as a result of the force acting on the microsensor. The deflection of the resilient electrode alters the electrical characteristics between the resilient electrode and the Si cone tip. The changes in the electrical characteristics can be measured to determine the level of force acting on the microsensor. The process for making the microsensor according to the invention comprises the steps of forming an insulating layer and support layer on the substrate, forming a recess in the insulating layer and aperture in the support layer, depositing a single crystal Si cone on the substrate and fully enclosing the Si cone within the recess of the support layer and the insulating layer.
Patent CA-2192408-A1 (CA)
Title: Fairing
Inventor: LOEWEN GORDON
IPC: B62D35/00
Filed: 1996-12-09
Abstract: A fairing for use on a trailer. The trailer has a first member with a first edge that is hingedly attached to the trailer at that first edge. A second member has a first edge also hingedly attached to the trailer at that edge. The first and second members can move longitudinally relative to each other. The fairing is arranged along the lower edge of a trailer, adjacent the wheel.
Patent CA-2194958-A1 (CA)
Inventor: KAWATA MOTOSHIGE
IPC: C12Q1/68
Filed: 1996-05-10
Abstract: L'invention porte sur un procédé de discrimination de différents organismes consistant à exécuter une PCR sur des fragments d'ADN d'individus à tester, et une amorce présentant une séquence de base symétrique, puis à séparer les fragments d'ADN amplifiés par électrophorèse sur gel de polyacrylamide, puis à marquer à l'argent chacun des fragments séparés d'ADN, et à comparer entre eux les fragments d'ADN marqués. L'invention porte également sur le susdit procédé dans lequel l'amorce à séquence de base symétrique est l'une des suivantes: 5'-CCCTAAAGAAATCCC-3', 5'-TTTAGGGCGGGATTT3', 5'-AGGGCCTTCCGGGA-3', et dans lequel les organismes individuels sont des animaux ou des plantes. Le procédé objet de l'invention présente une bonne efficacité de discrimination fondée sur une différence de séquence d'ADN car il permet d'identifier avec certitude ceux des fragments d'ADN des individus à tester dotés de polymorphisme notamment en réglant idoinement les conditions de température de la PCR. Il permet enfin une meilleure observation des fragments d'ADN dotés de polymorphisme chez les individus à tester.
Patent CA-2195212-A1 (CA)
Title: Life-saving device with launcher
Inventor: BAUTISTA REAL JOSEP ANTONI
IPC: B63C9/01
Filed: 1996-03-01
Abstract: The object of the invention is a life-saving device with launcher which provides for the automatic inflation of the float by simply acting on a lever. The mechanism is comprised of a gas tank or similar integral at its top portion with the float so that said tank is traversed by a hollow cut-off cock whose lower end projects from the container or tank and is terminated by the lever, the upper end being introduced inside the float and the gas penetrating through the hollow tube of said cock. Integral with the assembly is provided a ring which is connected to the rolled-up cable which is itself integral with the launcher, the latter being provided with a gun wherein is introduced the life-saving assembly in order to launch it to a major distance.
Patent CA-2195323-A1 (CA)
Title: Materiaux structurels a base de cermets de carbure de bore, presentant une forte resistance a la flexion a des temperatures elevees
Inventor: PYZIK ALEKSANDER J
IPC: C04B41/51
Filed: 1995-08-08
Abstract: On peut préparer des matériaux composites structurels en carbure de bore-aluminium en infiltrant de l'aluminium ou un alliage d'aluminium fondu dans une ébauche poreuse non cuite ou cuite à une température pouvant atteindre 1800 ~C pour former un cermet densifié que l'on traite ensuite à chaud dans l'air ou dans une atmosphère contenant de l'oxygène pour former une couche de surface externe dense en oxyde d'aluminium. Les cermets structurels résultants peuvent résister à une exposition prolongée à des températures dépassant celle du point de fusion de l'aluminium sans subir de dégradation marquée de leurs caractéristiques physiques telles que la résistance à la flexion.
Patent CA-2200991-A1 (CA)
Title: Compounds for the suppression of hiv tat transactivation
Inventor: GNABRE JOHN N
IPC: A61K31/222
Filed: 1995-09-22
Abstract: The present invention reveals the isolation, purification and characterization from the creosote bush Larrea tridentata of compounds of structural formula (I) where R1, R2, R3 and R4 are each selected from the group consisting of HO-, CH3O- and CH3(C=O)O-, provided that R1, R2, R3 and R4 are not each HO- simultaneously. Each compound is a derivative of 1,4-bis-(3,4-dihydroxyphenyl)-2, 3--dimethylbutane (nordihydroquaiaretic acid, NDGA). In addition, NDGA and each derivative can be used in a method to suppress Tat transactivation of a lentivirus, including the HIV virus, in a cell by administering NDGA or a derivative of NDGA to the cell.
Patent CA-2203181-A1 (CA)
Title: Corrosion preventing buffer system for metal products
Inventor: DALTON WILLIAM M
IPC: C23C30/00
Filed: 1995-10-19
Abstract: A system is disclosed for inhibiting the corrosion of ferrous and other metals by passivating the metals. The system includes novel buffered compositions which may be applied to metal products for preventing or retarding corrosion and methods for applying the buffered compositions to metal products such that corrosion protection of the products is achieved through passivation. The methods include an in-situ application to existing structures with metal reinforcement as well as applications to metal products during manufacture.  Generally, the compositions may be in various forms and comprise a carrier component and one or more pH buffer components. The buffer is selected to retain the proximity of the metal at a pH at which the metal is passive to corrosion. The compositions are environmentally friendly and are capable of replacing chromates which have been traditionally used with zinc and zinc alloys to inhibit corrosion of metals but which are potentially harmful to the environment.
Patent CA-2205308-A1 (CA)
Title: Telecommunications system with active database
Inventor: PENZIAS ARNO ALLAN
IPC: H04L12/52
Filed: 1994-01-17
Abstract: The present invention relates to a method for use by equipment which routes a telephone call from an originating location to a destination location via a selected one of at least two telecommunications carriers. The method is comprised of the steps of receiving at least a first one of the telecommunications carriers via a telecommunications signalling path that is connected to the equipment. The toll rate that is applicable for the call if routed via the first telecommunications carrier is also received. The signalling path includes an SS7 signalling link or an ISDN D channel. The method further includes the step of selecting a particular one of the telecommunications carriers as a function of at least the toll rate received from the first telecommunications carrier. Finally, the call is routed via the facilities of the selected telecommunications carrier.
Patent CA-2206314-A1 (CA)
Inventor: THORSEN HARALD JOHAN
IPC: A22C25/16
Filed: 1995-11-24
Abstract: Cette invention se rapporte à une machine pour découper les tissus non désirés (VP), par exemple les tissus gras sur les filets de poissons (F), ces tissus non désirés (VP) s'étendant essentiellement dans une seule direction principale, par exemple dans le sens de la longueur d'un filet de poissons. A cet effet, cette machine comprend un tambour de congélation rotatif (7) qui sert à fixer les filets (F) contre lui en les congelant, de façon à les maintenir en position fixe, pendant qu'un couteau (18) découpe une tranche de chair de poisson (FS) en la détachant du tambour de congélation (7), une bande transporteuse (3) étant prévue pour acheminer les filets (F) jusqu'au tambour de congélation (7). Ce tambour de congélation (7) comporte au moins une fente circonférentielle (7a) destinée à recevoir la partie tissus gras (VP), une bande transporteuse sous-jacente (3) étant prévue avec une forme, une conception et un mode de suspension qui font qu'elle vient presser ladite partie tissus gras (VP) dans la fente (7a) dans laquelle la partie tissus gras (VP) est congelée et, ainsi, retenue, en étant retirée de la face (7') du manteau du tambour, pendant que le couteau (18) détache une tranche de chair de poisson (FS) débarrassée de ses tissus gras.
Patent CA-2206519-A1 (CA)
Inventor: GIGER RUDOLF KARL ANDREAS
IPC: A61K31/40
Filed: 1995-12-29
Abstract: Des 1-alkyl-9,10-dihydroxy-4,5,5a,6-tétrahydro-dibenz[cd,f]indoles peuvent être utilisés dans le traitement de la maladie de Parkinson, l'abus d'alcool et la pharmacodépendance. Dans la formule, R¿1?, R¿2? et R¿3? représentent, indépendamment l'un de l'autre, alkyle en C¿1-4? sous forme libre ou de sel d'addition d'acide.
Patent CA-2206594-A1 (CA)
Title: Bearing chain
Inventor: BONITZ NIKOLAUS
IPC: F16C33/50
Filed: 1997-05-30
Abstract: A bearing unit is provided with casters on either side reducing frictional losses during travel in a channel. The bearing unit is capable of being hingedly connected to other similar bearing units, end to end, to form a bearing chain.  Such a chain is capable of assuming a multitude of shapes and, therefore, can adapt to the shape of a non-linear channel. This device is particularly useful as a means of reducing frictional energy losses when one solid surface is required to slide over another solid surface in a curvilinear path.
Patent CA-2207737-A1 (CA)
Inventor: SQUAREK DOUGLAS
IPC: B63B35/71
Filed: 1997-06-13
Abstract: A kayak deck bag  (15)  is comprised of a foldable membrane  constructed  at  least  in  part  with  waterproof material  (23,  24,  25)  and having  at  least  two  opposed article  carrying  panels  (22,  22')  foldable  to  form  a carrying case (51).  The panels have a working surface (17) provided with storage compartments (20, 20'), and an article attachment surface (21, 34)   Fasteners (37) are provided to detachably secure the bag in an open condition on a deck of a kayak with the working surface  (17)  facing upwardly to permit access thereto to an occupant (13) of the kayak.
Patent CA-2208419-A1 (CA)
Title: Recirculating a portion of high internal phase emulsions prepared in a continuous process
Inventor: DESMARAIS THOMAS ALLEN
IPC: B01F3/08
Filed: 1996-01-11
Abstract: An improvement in a continuous process for making high internal phase emulsions that are typically polymerized to provide microporous, open-celled polymeric foam materials capable of absorbing aqueous fluids, especially aqueous body fluids such as urine. The improvement involves recirculating a portion (about 50 % or less) of the emulsion withdrawn from the dynamic mixing zone of this continuous process. This increases the uniformity of the emulsion ultimately obtained from this continuous process in terms of having the water droplets homogeneously dispersed in the oil phase. This also improves the stability of the HIPE and expands the temperature range for pouring and curing this HIPE during subsequent emulsion polymerization.
Patent CA-2209202-A1 (CA)
Inventor: KUETTENBAUM HOLGER
IPC: E03D9/00
Filed: 1996-11-12
Abstract: The water closet (1) proposed has a housing (2) in which is mounted a pivoting dish-shaped bowl (7) with a seat (8). The bowl (7) can be pivoted from its position of use into a flushing position. Also located in the housing (2) is a cleaning device (20) which cleans the seat (8) and bowl (7) with pressurized water when the bowl is in the flushing position. The cleaning device (20) has a hood (21) surrounding spray nozzles (24, 25, 26) which clean the bowl (7) and seat (8). The hood (21) and the bowl (8) together delimit, with the bowl in the flushing position, a space which is sealed off with a fluid-tight seal from the rest of the housing interior (9). During the cleaning operation, even stubborn soiling adhering to the surface of the seat or to the inside of the bowl can be detached and washed down the waste pipe (10). After cleaning with pressurized water, the bowl (7) and seat (8) are dried with cold or hot air, for which purpose the cleaning device (20) is fitted with a fan.
Patent CA-2209208-A1 (CA)
Inventor: AHR ROBERT
IPC: G08C19/02
Filed: 1997-06-26
Abstract: The sensor Ä1Ü is located in an intrinsically safe region Ä10Ü and is connected with a current measuring resistor in a non-intrinsically safe region Ä20Ü. The sensor output is in the 4-20 mA range, and is supplied from the secondary of a transformer Ä2Ü via a rectifier unit Ä8Ü and a conditioning stage Ä9Ü. The transformer has a primary with two windings Ä21,22Ü which are coupled to an output stage arrangement Ä31Ü, in which the current measuring resistor connected to the centre tap of the transformer primary. The voltage developed across the resistor is fed to an offset unit, and subsequently to a voltage to current converter (7),
Patent CA-2211825-A1 (CA)
Title: Guide rail for a crawler track
Inventor: FLEUCHAUS JAMES S
IPC: B62D55/084
Filed: 1997-07-28
Abstract: A crawler track guide rail having an upper elongated surface engagable with the shoes of a crawler track, a lower surface engagable with a crawler track support frame, and a foot which extends downward into the frame to transfer load resulting from the engagement of the shoes with the guide rail to the frame.  The guide rail has at least one elongated lower surface and may have two elongated lower surfaces which are engageable with the frame.  Where there are two elongated surfaces of the guide rail in engagement with the frame, the foot of the guide rail is positioned between the two elongated surfaces.  The guide rail has a plurality of fasteners for retaining it on the crawler frame extending through the guide rail and the frame.  The fasteners have a selected tolerance fit with the frame and the foot of the guide rail has a smaller tolerance fit with the frame than that of the fasteners.  Thus, the foot fits relatively snugly with the frame to thereby assist with transfer of the load on the guide rail to the frame through the foot rather than through the fastener members.
Patent CA-2211853-A1 (CA)
Title: Control apparatus for space cooling system
Inventor: DEROSIER GREGORY S
IPC: F25B49/02
Filed: 1996-01-31
Abstract: Apparatus for providing integrated control of a space cooling system (20) is disclosed. The apparatus receives inputs from a plurality of temperature sensors, including a temperature sensor for mesuring evaporator superheat (29, 28), space temperature (31) and compressor discharge temperature (30). The control apparatus incrementally adjusts the position of the cooling system expansion valve (24) to regulate evaporator superheat and compressor discharge temperature and cycles the outdoor condenser fan (27) on and off to raise condenser pressure in response to a low condenser pressure condition. In one embodiment, the cooling system includes a plurality of evaporators (21) and a corresponding plurality of controllers (25) electrically interconnected in a series loop for controlling the expansion valves (24) and defrost heaters (34) associated with the respective evaporators (21). One of the controllers functions as a master controller and receives inputs from the space temperature sensor (31) and the compressor discharge temperature sensor (30) as well as from the temperature sensors (28, 33, 29) associated with the corresponding evaporator (21).
Patent CA-2212990-A1 (CA)
Inventor: VAN DE ROTTEN LEONARDUS ANTHON
IPC: B01L3/00
Filed: 1996-02-13
Abstract: Compartiment à compter (1) comprenant une entrée (5) et une sortie (6), ainsi qu'une plaque inférieure (2) et une plaque supérieure (3) qui sont maintenues à une certaine distance l'une de l'autre par des particules de matière ayant la même dimension et étant situées à une certaine distance les unes des autres.  Les particules sont entourées d'une couche de matériau de liaison solide formée par un adhésif et dans laquelle elles sont encastrées. La couche de liaison se prolonge tout autour et vers le haut jusqu'à l'extrémité libre (11) de la sortie du compartiment à compter. Ce dernier est formé d'un mélange fluide d'adhésif mélangé à des particules chargées électrostatiquement, sa profondeur étant déterminée par la plus grosse dimension des particules de matière. Le compartiment à compter (1) convient tout particulièrement au comptage de cellules dans les matériaux biologiques comme le sperme et les échantillons sanguins.
Patent CA-2213762-A1 (CA)
Title: No-drill fastener for truck utility box
Inventor: STROHFELDT JOHN D
IPC: B60R9/00
Filed: 1997-09-08
Abstract: A utility box is mounted to a truck box without piercing the wall of the truck box. A J-bolt extends through a neoprene gasket, a washer and a back-up plate to clamp the back wall of the utility box to the front rail of a truck box. For mounting within a bedliner, the utility box is held against vertical displacement by stair stepped brackets which are bolted to the utility box to extend beneath the truck side rails. The upper faces of the stair steps are designed to interface with a variety of truck models of varying widths. When mounted in a truck box with an over-the-rail bedliner, a bolt is positioned inside the utility box and such that a shank passes through the wall of the utility box and the side wall of the liner. A spacer is positioned on the shank between the utility box wall and the wall of the liner. A collapsible nut mounted on the shank passes partway through the liner wall. Rotation of the bolt causes the portion of the collapsible nut which is located on the side of the liner wall facing away from the spacer to expand, thereby locking the side wall to the fastener.
Patent CA-2215475-A1 (CA)
Title: Liquid fuel burners
Inventor: HEYLBROECK ALBERT
IPC: F23C99/00
Filed: 1997-09-15
Abstract: A liquid fuel burner apparatus which comprises a fuel distributing member of a generally conical configuration mounted within a housing, along with means for feeding a liquid fuel to an upper end of the fuel distributing member to allow the liquid fuel to form a film on the outer surface.  A vaporizing aperture is formed in the outer surface and a gas supply conduit supplied with a pressurized gaseous material to atomize the fuel for ignition.  The unburned fuel is then collected and recycled back to the burner.  The apparatus permits the burning of material which may contain small particles which would otherwise clog the nozzle of a conventional apparatus.
Patent CA-2220054-A1 (CA)
Inventor: THOMAS ANDREW DONALD
IPC: B62D5/083
Filed: 1996-05-03
Abstract: A rotary valve for a hydraulic power steering gear, has a sleeve (11) with slots (19a-b) journalled to an input-shaft (10) with grooves ( 18a-c), the co-acting sleeve slots and input-shaft grooves defining axially extending orifices. The orifices are ported as a network such that they form primary and secondary hydraulic Wheatstone bridges arranged in parallel, each bridge comprising two limbs each of which incorporate inlet and return orifices communicating to respective inlet and return ports of the valve. The limbs of the primary bridge incorporate means providing hydraulic communication to one of the cylinder port, whereas the limbs of the secondary bridge do not incorporate such means. The return orifice (34a, 34b) in each secondary bridge limb is formed by a metering edge contour on the edge of a secondary return groove (18c) and circumferentially overlapping an adjacent sleeve bore land when the valve is in its neutral position to such an extent such that the return orifice provides a restriction to hydraulic flow for all valve operating angles thereby applying a back pressure to the upstream inlet orifice. The back pressure being sufficient to significantly suppress the generation of cavitation noise in the inlet orifice.