baber/WOPTO huggingface dataset:
Patent CA-2276137-A1 (CA)
Inventor: YU XIAOYU
IPC: A61B19/00
Filed: 1997-12-19
Abstract: This invention is a disposable, sterilized sheath (20) for use on a closed loop Joule-Thomson cryosurgical probe (10), the combination of the disposable sheath (20), and the probe (10). The sheath (20) is slipped over the probe (10), thereby separating the probe (10) from the environment. The sheath has a grip (22) which fits over the handle (12) of the probe (10), and an extendible shroud (23) that can be longitudinally extended to cover tubing (18) which is attached to the handle (12). The sheath (20) has a hollow multi-lumen catheter (24) shaped and sized to fit snugly over the cannula (t4) of the probe (10). The catheter (24) is not thermally conductive, preventing transfer of heat from the ambient to the gas mixture, and preventing the freezing of tissues at undesired locations. A thermally conductive cap or tip (26) fits snugly over the cold tip (16) on the probe (12) and it efficiently transfers heat from the target tissue to the cold tip (16), which in turn transfers heat to the expanded gas mixture. Various forms of auxiliary instrumentation can be mounted on the catheter (24) or conductive tip (16), such as a temperature sensor, a heater, an ultrasonic transducer, or an optical element of a viewing illumination or laser system. Connections between the instrumentation near the distal end of the catheter (24) and the probe (10) are made via a plurality of lumens passing longitudinally through the wall of the catheter (24).
Patent CA-2278825-A1 (CA)
Inventor: WATANABE KAZUO
IPC: G02B1/14
Filed: 1999-07-26
Abstract: An anti-reflection film having superior anti-reflection properties and which is suited for practical application is to be manufactured easily and simply with high productivity and a reduced manufacturing cost. To this end, there are sequentially formed, by layering, an adhesive layer 4, a first optical thin film 5, containing one or more of titanium nitride, hafnium nitride and zirconium nitride, and a second optical thin film 6 having a refractive index of 1.35 to 1.7. The adhesive layer 4 is represented by the chemical formula of SiO x, where x < 2. If the first optical thin film 5 mainly contains titanium nitride, the first optical thin film 5 preferably is electrically conductive. The second optical thin film 6 is preferably formed of SiO2. A cathode ray tube may be provided by arranging the resin substrate 3, carrying the respective layers, on a face plate side of the display portion, with the remaining configuration of the anti-reflection film being the same as above.
Patent CA-2279636-A1 (CA)
Title: 2-amino substituted pyridines for use in the treatment of arteriosclerosis and hyperlipoproteinaemia
Inventor: BRANDES ARNDT
IPC: A61K31/4409
Filed: 1998-01-23
Abstract: The invention relates to novel 2-amino-substituted pyridines which are produced by first converting corresponding pyridine aldehydes into the corresponding hydroxides by means of metal-organic compounds such as Grignard compounds, and then reducing said hydroxides to a deshydroxy compound. The novel 2-amino-substituted pyridines are suitable for use as active ingredients in medicaments, particularly those used in the treatment of arteriosclerosis.
Patent CA-2283677-A1 (CA)
Title: Apparatus and method for molding polyester articles having low acetaldehyde content directly from the melt formation using flash tank devolatilization
Inventor: WEINHOLD STEPHEN
IPC: B29C48/38
Filed: 1998-03-19
Abstract: An apparatus and a method for molding of polyester articles having low acetaldehyde content directly from a melt without intermediate solidification of the molten polyester. A melt to mold process is used wherein an acetaldehyde stripping agent is mixed into a polyester melt before devolatilization in a flash tank. The devolatilized polyester is pumped out of the flash tank and injected into a mold, thus forming a shaped article. The apparatus may include one or more flash tanks in one devolatilization line, or multiple devolatilization lines may be used stemming from one main polymerization reactor. The final shaped article should contain less than 10 ppm of acetaldehyde.
Patent CA-2284180-A1 (CA)
Inventor: BALIC ROBERT
IPC: C08F255/02
Filed: 1998-03-23
Abstract: Modification of polymers of the type including carbon/carbon double bonds is disclosed wherein the polymerisation of at least one monomer of low water solubility within a pre-existing polymer latex yields material containing interlinked polymers. The process includes the steps of (a) taking or making a colloidal dispersion of the polymer in an aqueous medium, (b) swelling the polymer in the colloidal particles with at least one polymerisable monomer having a solubility in water of less than 10-3 molar; and (c) inducing a freeradical polymerisation of the monomer(s) within the swollen colloidal particles of the polymer. The process is particularly appropriate to preparation of modified natural rubber latex.
Patent CA-2286380-A1 (CA)
Title: Steel and process for the manufacture of a part for ball bearing
Inventor: VINCENT ALAIN
IPC: F16C33/64
Filed: 1998-04-01
Abstract: Disclosed is steel used to manufacture a part for a ball bearing. The chemical composition of the steel in weight is as follows: 0.6 % ? C ? 1.5 %; 0.4 % ? Mn ? 1.5 %; 0.75 % ? Si ? 2.5 %; 0.2 % ? Cr ? 2 %; 0 % ? Ni ? 0.5 %; 0 % ? Mo ? 0.2 %; 0 % < Al ? 0.05 %; S ? 0.04 %; the remainder of the composition being iron and impurities resulting form the process. Said composition furthermore satisfies the following relations: Mn ? 0.75 + 0.55 x Si and Mn ? 2.5 - 0.8 x Si. A process for manufacturing a ball bearing part is also disclosed.
Patent CA-2288229-A1 (CA)
Title: Wound product cores and processes for making them
Inventor: TANNER JAMES J
IPC: D21J3/04
Filed: 1998-04-30
Abstract: The present invention provides a core (100) for receiving a wound product (130) wherein the core is made of a waste sludge produced in a papermaking process. The process for making the core includes the steps of mixing the sludge with a binder material, which may be either a wet strength or a dry strength agent, and then compressing the mixture into a core through a process such as extrusion or molding. Optionally, the sludge may be dried prior to mixing with the binder material.
Patent CA-2289136-A1 (CA)
Title: Homogeneous charge compression ignition internal combustion engine
Inventor: REATHERFORD LARRY
IPC: F02D41/30
Filed: 1999-11-09
Abstract: A HCCI engine includes a cylinder block with a cylinder head closing off a cylinder, a power piston slidably contained within the cylinder, and a boost piston for initiating timed combustion of fuel within a combustion chamber. The boost piston is housed within a wall of the combustion chamber such that when the boost piston moves from a base position to an extended position, the heat increase within the combustion chamber is sufficient to cause fuel within the combustion chamber to ignite.
Patent CA-2290403-A1 (CA)
Inventor: WU FU NING
IPC: G06F1/30
Filed: 1998-06-19
Abstract: On décrit un système d'alimentation sans coupure (UPS) équipé d'un nouvel onduleur pour convertir une tension CC en tension CA. Le système comprend un circuit en pont complet muni de quatre commutateurs à redresseurs au silicium (SCR), deux circuits de commande d'impulsions qui émettent des signaux de tension de commande pour activer des paires alternées desdits commutateurs, un circuit de séquencement temporel, et un circuit de commutation de puissance. Le circuit en pont complet est relié directement à une borne d'entrée de tension continue positive et couplé à une borne d'entrée de tension continue négative par le biais du circuit de commutation de puissance. Le circuit de séquencement temporel génère un premier signal à impulsion pour commander le premier circuit de commande d'impulsions, et un deuxième signal à impulsion pour commander le deuxième circuit de commande d'impulsions, de sorte que lesdits premier et deuxième circuits de commande d'impulsions soient en opposition de phase. Le circuit de séquencement temporel génère ensuite un troisième signal à impulsion pour commander le circuit de commutation de puissance. L'onduleur UPS ne requiert pas un transformateur à noyau de fer et présente donc une taille et un poids tels qu'il peut être utilisé dans des systèmes UPS de dimensions réduites. Sans sacrifier ni la taille ni la sécurité, ni encore la fiabilité de fonctionnement du dispositif, un tel système UPS peut sans inconvénient s'intégrer physiquement dans n'importe quel bloc d'alimentation ordinaire.
Patent CA-2292551-A1 (CA)
Title: Collection device for scooping refuse for disposal
Inventor: CLARK LARRY G
IPC: E01H1/12
Filed: 1998-07-13
Abstract: A collection device (10) is useful to scoop and bag refuse, such as pet excrement, from a surface. The device includes a handle (12) that supports a working head (30) that has an intake portion (32), a discharge portion (36) and a guide portion (34) therebetween. The working head has bag holders (70) to secure a bag (90), such as a plastic grocery bag, with a mouth engaging the discharge portion so that refuse may be introduced into the intake at an upstream end and dumped into the bag at the downstream end. The intake portion has forwardly extending tines (60). The bag holder is shown as radial posts (70) and/or a ring clamp (102). The handle may be either be a short hand grip (316) or preferably an elongate rod that permits use of the collection device while the user is standing. The working head is preferably cylindrical, but it may be flattened if desired.
Patent CA-2294071-A1 (CA)
Title: Method for forming synthetic turf game surface
Inventor: LEMIEUX ALAIN
IPC: E01C13/08
Filed: 1998-06-09
Abstract: A method for forming a synthetic turf game-playing surface comprises first, providing a pile carpet cover having a base sheet (14) carrying closely spaced-apart, upright, grass-like plastic strands (12) forming simulated grass blades. The cover is laid upon a resilient cushion pad (18) supported upon a firm surface, and sand-like particular material is blasted against the upper portions of the blades (12) at sufficient pressure and for sufficient time to shred the blade upper end portions into fine slivers (23) which remain joined to their respective blades and become intertwined with adjacent slivers to form a dense mat upon the upper surface of the carpet. During the blasting, the resilient cushion (18) beneath the carpet, resiliently supports the upright blades against being crushed or permanently compressed by the force of the blasting.
Patent CA-2295573-A1 (CA)
Inventor: YAMAMOTO YUJIRO
IPC: B03C3/155
Filed: 1997-07-14
Abstract: Filter apparatus (100) for trapping particles suspended in a gaseous fluid stream generally includes a first and a second electrode (116, 118) with a porous filter (112) therebetween along with electrical contacts (144, 146) for applying a DC voltage across the first and second electrodes (116, 118). A third electrode (150) is provided and a frame (154) is included for removably supporting the porous filter (112), along with the first, second, and third electrodes (116, 118, 150) in order to electrify, by induction, the third electrode (150) with a voltage in the third electrode (150) in order to increase trapping of the particles by the filter apparatus (100).
Patent CA-2298563-A1 (CA)
Title: Method for preparing substituted benzyl bromides
Inventor: GOETZ NORBERT
IPC: C07C201/12
Filed: 1998-07-20
Abstract: The invention concerns a method for preparing substituted benzyl bromides of general formula (I), wherein at least one substituent R1-5 represents an electroattractive group, such as fluorine, chlorine, bromine, C1-C4 alkoxycarbonyl, cyano or nitro, and the remaining R1-5 substituents represent hydrogen or methyl, by bromination of substituted toluenes of general formula (II) with a bromination agent at temperatures from 20 to 95 ° C.
Patent CA-2298760-A1 (CA)
Inventor: LAUK FRANK
IPC: A47K3/28
Filed: 2000-02-11
Abstract: A holder for objects is constructed so as to mount on a shower curtain rod to slide freely therealong. The holder has a pair of depending legs which straddle the shower curtain, and each leg has a hook. Certain objects may therefore be hung on the inside hook to be available while showering, and other objects (e.g. a towel) may hang on the outside hook, so that the shower curtain protects them from the shower spray, to be available after the shower.
Patent CA-2303442-A1 (CA)
Inventor: TIPTON ARTHUR J
IPC: A61Q11/00
Filed: 1998-09-08
Abstract: A composition as a medical or surgical device is provided that includes: (i) a non-polymeric, non-water soluble liquid carrier material (HVLCM) of viscosity of at least 5,000 cP at 37 ~C that does not crystallize neat under ambient or physiological conditions; and, optionally, (ii) a substance to be delivered.
Patent CA-2303865-A1 (CA)
Inventor: KORNDORFFER DIETER
IPC: F16L1/24
Filed: 1997-10-29
Abstract: The invention relates to a device and a method of towing new or used pipeline below water-level and sinking it on location, said device having first means for adjusting the collective floating capacity of the device and the portion of the pipeline engaged by the device, and second means which, depending on a velocity in relation to the water to be applied to the assembly of the device and the pipeline coupled to it, supply an additional upward force.
Patent CA-2304810-A1 (CA)
Inventor: GODDARD AUDREY
IPC: G01N33/53
Filed: 1998-09-14
Abstract: The present invention concerns isolated nucleic acid molecules encoding the novel TIE ligand homologues NL2, NL3 and NL6 (FLS139), the proteins encoded by such nucleic acid molecules, as well as methods and means for making and using such nucleic acid and protein molecules.
Patent CA-2305017-A1 (CA)
Inventor: VAN DAMME JO
IPC: C12N1/15
Filed: 1998-09-28
Abstract: La présente invention concerne un MCP-2 à acide aminé terminal, ne possédant pas d'acides aminés à terminaison NH¿2? correspondant aux résidus d'acides aminés 1, 1-2, 1-3, 1-4 ou 1-5 du MCP-2 naturel et présentant une activité antagoniste de la chémokine, ainsi que des séquences d'ADNc codant ces derniers. L'invention concerne également leur utilisation pour traiter, et/ou diagnostiquer les maladies dans lesquelles une activité antagoniste des effets de la chémokine est requise. L'invention concerne également des compositions pharmaceutiques à base de ces composés.
Patent CA-2305851-A1 (CA)
Title: Graphical user interface system
Inventor: NEY MABEL M
IPC: G09B29/00
Filed: 2000-04-17
Abstract: A software-based system to facilitate user interaction with graphical arrangements of information displayed on a computer screen. In one embodiment of the invention, the system establishes an arrangement of displayed information, such as a digital map, a first control panel for manipulating the display, and a second command panel for manipulating the display based upon information selection. The displayed information, and the first and second panels are configured such that when information queries are initiated and results generated, those events are presented on the computer screen without blocking the information as displayed.     Query tabs of the second panel are arranged to facilitate information access, management and presentation. In a second embodiment of the invention, the system is configured to enable the user to selectively display the information at successive levels of magnitude. The system is further configured to enable the user to display the information of a particular level of magnitude into levels of sub-magnitudes. The system enables such selection while displaying on the screen information that is neither too sparse nor too dense for the particular levels of magnitude/sub-magnitude selected. This capability is particularly advantageous in the display of digital maps.
Patent CA-2307819-A1 (CA)
Title: Water treatment method for heavy oil production
Inventor: HEINS WILLIAM F
IPC: C02F1/08
Filed: 2000-05-08
Abstract: A method of treating produced water from heavy oil production to provide feedwater for the production of high quality steam. A produced water from heavy oil recovery operations is initially treated by first removing oil and grease to a desired level, preferably to about twenty parts per million, or less.    The pH is then adjusted, normally downward and by acid addition, to release at least some carbonate alkalinity as free carbon dioxide. Preferably, all non-hydroxide alkalinity is removed, or substantially so, by introducing the feedwater into a decarbonator. In some cases, the pH may be raised (without, or subsequent to decarbonation, depending upon water chemistry) preferably by caustic addition, to maintain silica solubility in the feedwater. Next the feedwater is introduced into an evaporator, and the feedwater is evaporated to a pre-selected concentration factor to produce (1) a distillate having a small amount of residual hardness therein, and (2) a concentrate containing residual solids (dissolved solids and in some cases, suspended solids). The distillate is then cooled, and is subsequently introduced into a hardness removal step, preferably an electrodeionization (EDI) treatment unit, to remove the residual hardness from the distillate. Finally, the substantially hardness free treated water stream is sent to packaged boilers, for production of high quality steam.    The hardness containing stream from EDI is recycled to the evaporator feed, for further treatment.
Patent CA-2310536-A1 (CA)
Title: Erythropoietin derivatives
Inventor: BAILON PASCAL SEBASTIAN
IPC: A61K47/48
Filed: 2000-06-28
Abstract: The present invention refers to conjugates of erythropoietin with poly(ethylene glycol) comprising an erythropoietin glycoprotein having at least one free amino group and having the in vivo biological activity of causing bone marrow cells to increase production of reticulocytes and red blood cells and selected from the group consisting of human erythropoietin and analogs thereof which have sequence of human erythropoietin modified by the addition of from 1 to 6 glycosylation sites or a rearrangement of at least one glycosylation site; said glycoprotein being covalently linked to "n" poly(ethylene glycol) groups of the formula -CO-(CH2)x(OCH2CH2)m-OR with the carbonyl of each poly(ethylene glycol) group forming an amide bond with one of said amino groups; wherein R is lower alkyl; x is 2 or 3; m is about 450 to about 900; n is from 1 to 3; and n and m are chosen so that the molecular weight of the conjugate minus the erythropoietin glycoprotein is from 20 kilodaltons to 100 kilodaltons.
Patent CA-2310721-A1 (CA)
Title: Moteur rotatif a combustion interne
Inventor: BORUKHOV LEONID
IPC: F01C21/04
Filed: 1998-02-25
Abstract: L'invention concerne un moteur rotatif à combustion interne (10) comportant un collecteur (220) fixe, situé au centre et présentant un orifice d'admission et un orifice d'échappement (222, 224). Des ensembles rotor intérieur et extérieur (14, 16) tournent dans un même sens autour de ce collecteur et possèdent deux paires de pistons (84, 100) diamétralement opposés, généralement de forme octogonale et qui divisent un volume interne de rotation, défini par l'ensemble rotor extérieur (14), en quatre chambres de travail communiquant périodiquement avec les orifices d'admission et d'échappement. Des pistons de l'ensemble rotor intérieur (16) coulissent le long de parois connexes de l'ensemble rotor extérieur. Le mouvement des ensembles rotor et le transfert des forces générées lors du fonctionnement du moteur sont pris en charge par un mécanisme de transmission de forces (18) comportant un vilebrequin (21), un élément principal de manivelle (50), des biellettes (58, 60), et une structure de distribution (24, 26, 36, 48). Une caractéristique importante de l'invention réside dans la création d'une pompe à eau (122) située à l'intérieur et entraînée par le vilebrequin. Les pistons sont refroidis par liquide, conjointement avec les carters des ensembles rotor intérieur et extérieur.
Patent CA-2323485-A1 (CA)
Inventor: WEBER ROBERT T
IPC: G05D7/01
Filed: 1999-03-10
Abstract: La présente invention concerne une soupape permettant de réguler l'écoulement d'un fluide d'une zone amont vers une zone aval. Cette soupape comporte un logement présentant une sortie de fluide, un organe d'admission de fluide comportant une paroi latérale, et un obturateur associé au logement. La paroi latérale et l'organe d'admission de fluide comporte par nature au moins un orifice de régulation destiné à recevoir le fluide d'une zone amont, et un second orifice destiné à recevoir le fluide de la zone amont. L'organe d'admission de fluide est monté mobile à l'intérieur du carter de façon que l'orifice de régulation considéré comporte une surface efficace exposée à la zone amont qui aille en décroissant au fur et à mesure de l'augmentation du différentiel de pression entre la zone amont et la zone aval. L'obturateur est associé au logement et à l'organe d'admission de fluide de façon à interdire l'écoulement du fluide dès que le différentiel de pression de fluide entre la région amont et la région aval passe au-dessus d'une valeur attendue.
Patent CA-2324834-A1 (CA)
Inventor: WESTERLUND SVEN-ERIK
IPC: F24B1/185
Filed: 2000-11-01
Abstract: The heating device has a housing and a liquid containing compartment defined inside the housing. A heating chamber is disposed inside the housing and the compartment. A fire chamber is disposed inside the heating chamber that produces hot combustion gases. A separation channel is defined between an outer wall of the fire chamber and the outer wall of the heating chamber for conveying the air from the first air inlet into the heating chamber. The separation channel also creates an important insulation between the fire chamber and the compartment so that the combustion material in the fire chamber burns at a sufficiently high temperature to prevent the formation of tar accumulations on the inside walls of the various ducts.      Also, the separation channel maintains a suitable temperature of the outer wall of the fire chamber to reduce the risk of cracking and to prolong the useful product life of the fire chamber.
Patent CA-2325234-A1 (CA)
Title: Hoist
Inventor: YANKE RICHARD D S
IPC: B66D3/18
Filed: 2000-11-07
Abstract: The invention is a hoist particularly useful for mounting, lifting, and displaying ornamental display objects such as pictures, posters, murals, plexiglass displays. and ornamental fabrics. The hoist has at least two cable cables that attach to display objects. The two cables are spaced apart to prevent the display object from rotating. The hoist can be mounted to a high ceiling and the cables lowered from a distance by remote control to allow an operator to mount a display object from the ground and then raise it to a desired viewing height.
Patent CA-2329457-A1 (CA)
Title: Header compression for general packet radio service tunneling protocol (gtp)-encapsulated packets
Inventor: CHUAH MOOI CHOO
IPC: H04L12/56
Filed: 2000-12-21
Abstract: A UMTS (Universal Mobile Telecommunications System) core network supports a compression framework that provides for header compression of General Packet Radio Service Tunneling Protocol (GTP)-Encapsulated Packets. In particular, the GTP/UDP(User Datagram Protocol)/IP(Internet Protocol) header is compressed. In addition, the UMTS core network also supports RTP(Real Time Protocol)/UDP/IP  header compression independent of the GTP/UDP/IP header compression.