baber/WOPTO huggingface dataset:
Patent CA-2294393-A1 (CA)
Inventor: LANGE JEAN-PAUL
IPC: C07C53/128
Filed: 1998-06-16
Abstract: On décrit un procédé de production d'acides carboxyliques ramifiés à partir d'oléfine ramifiée dans lequel on établit une réaction avec du monoxyde de carbone et un catalyseur acide solide; ce procédé se caractérise par le fait qu'on fait réagir une oléfine ramifiée ou un précurseur de cette dernière dans un réacteur continu ou dans un réacteur à écoulement piston avec du monoxyde de carbone et de l'eau, en présence d'un échangeur d'ions acides ayant suffisamment de groupes acides pour fournir les protons nécessaires pour convertir ladite oléfine ou son précurseur et le monoxyde de carbone en acide carboxylique ramifié, et en présence d'un solvant organique non coordinateur polaire.
Patent CA-2294681-A1 (CA)
Inventor: TOMASSONI GABE
IPC: F16C11/06
Filed: 2000-01-06
Abstract: novel bearing structure is provided herein. The bearing structure is a sealed, self-lubricating, self aligning bearing system for a pin or shaft, especially of a refuse collection machine. The sealed, self-lubricating, self-aligning bearing system includes a pair of longitudinally-spaced-apart bosses for securing the bearing structure to the refuse collection machine. A sealed roller bearing assembly box is disposed around the pivotable pin or shaft. The assembly includes a self-lubricating, self-aligning bearing which is fixed to the pivotable pin or shaft. A bearing assembly box is concentrically-disposed around the self lubricating, self-aligning bearing. The bearing assembly box also includes a bearing guiding surface. A lubricant fitting communicates with the bearing guiding surface to supply the bearing surface with a lubricant. A pair of ring spacers are disposed at the respective lateral edges of the bearing assembly box. Wiper bearing seals are respectively-secured to the ring spacers and in sliding-contact with the pin or shaft, in such a way that ingress of liquid to the bearing is precluded.
Patent CA-2298800-A1 (CA)
Title: Electrochromic device having improved light stability
Inventor: BERNETH HORST
IPC: G02F1/1503
Filed: 2000-02-15
Abstract: The invention relates to an electrochromic device having (a) a pair of glass or plastic plates or plastic films wherein at least one such plate or film is provided on one side each with an electrically conductive coating, wherein (1) at least one such plate or film and its conductive coating ist transparent, (2) the other such plate or film and its conductive coating is optionally mirrored, (3) the electrically conductive layer of one or both of the two plates or films is optionally divided into separate segments optionally provided with individual contacts, and (4) the plates or films are joined on the sides of their conductive coating by means of a sealing ring to form a volume; and (b) the volume formed by the two plates or films and the sealing ring is filled with an electrochromic medium containing certain dihydronaphthazines or dihydrophenazines.
Patent CA-2299894-A1 (CA)
Title: Process of desorption of linker-bound substances from a polymeric surface
Inventor: NOWAK GOTZ
IPC: C07K1/12
Filed: 2000-03-02
Abstract: The present invention relates to a process for separating substances, which are bonded to a polymer surface via a linker, by adding a polar organic solvent.
Patent CA-2299944-A1 (CA)
Inventor: HE GANG
IPC: G01J4/04
Filed: 2000-03-03
Abstract: In order to compensate for inherent polarization dependency in a photodetector comprising a photosensitive detector and at least one interface through which, in use, light for detection will be incident upon the detector along a predetermined optical axis, the at least one interface being between media having different refractive indices, the interface is inclined relative to the predetermined optical axis such that an axis of minimum inherent polarization dependent response of the detector is tilted relative to the predetermined optical axis to such an extent that the inherent polarization response is substantially minimized. Where the photosensitive detector is already housed in a housing with a window whereby light for detection reaches the detector, the housing can be tilted, in which case there are three such interfaces, namely a first at the surface of the detector and one at each surface of the window. If correction is made during manufacture of the photodetector, however, either or both of the detector surface and the window could be tilted.
Patent CA-2300683-A1 (CA)
Title: Coiled tubing drilling with supercritical carbon dioxide
Inventor: KOLLE JACK J
IPC: E21B21/06
Filed: 2000-03-14
Abstract: A method for increasing the efficiency of drilling operations by using a drilling fluid material that exists as supercritical fluid or a dense gas at temperature and pressure conditions existing at a drill site. The material can be used to reduce mechanical drilling forces, to remove cuttings, or to jet erode a substrate. In one embodiment, carbon dioxide (CO2) is used as the material for drilling within wells in the earth, where the normal temperature and pressure conditions cause CO2 to exist as a supercritical fluid. Supercritical carbon dioxide (SC-CO2) is preferably used with coiled tube (CT) drilling equipment. The very low viscosity SC-CO2 provides efficient cooling of the drill head, and efficient cuttings removal. Further, the diffusivity of SC-CO2 within the pores of petroleum formations is significantly higher than that of water, making jet erosion using SC-CO2 much more effective than water jet erosion. SC-CO2 jets can be used to assist mechanical drilling, for erosion drilling, or for scale removal. A choke manifold at the well head or mud cap drilling equipment can be used to control the pressure within the bore hole, to ensure that the temperature and pressure conditions necessary for CO2 to exist as either a supercritical fluid or a dense gas occur at the drill site. Spent CO2 can be vented to the atmosphere, collected for reuse, or directed into the formation to aid in the recovery of petroleum.
Patent CA-2303348-A1 (CA)
Inventor: TERRY EDWARD L JR
IPC: G06F21/79
Filed: 1998-09-23
Abstract: According to the present invention, a secured memory (20) comprises a first level security zone (22) having an access code (SCI) controlling access to the secured memory (20) prior to an issuer fuse (28) being blown, a security code attempts counter (SLAC) preventing access to the secured memory (20) when a predetermined number of attempts at matching the access code have been made prior to resetting the security code attempts counter (SCAC), a plurality of application zones (24), each of the plurality of application zones comprising: a storage memory zone (SMZ 2-4), an application security zone (24) having an application zone access code (SC2-4) controlling access to the storage memory zone after an issuer fuse (28) has been blown, an application zone security code attempts counter (S2-4AC) preventing access to the application zone (24) when a predetermined number of attempts at matching the application zone access code (SC2-4) have been made prior to resetting the application zone security code attempts counter, an erase key (EZ2-4) partition having an erase key code controlling erase access counter (E1-4AC) preventing erase access to the application zone when a predetermined number of attempts at matching the erase key code (EZ2-4) have been made prior to resetting the erase key attempts counter (E1-4AC).
Patent CA-2303487-A1 (CA)
Title: Vitronectin receptor antagonists
Inventor: BONDINELL WILLIAM E
IPC: C07D217/22
Filed: 1998-09-18
Abstract: Compounds of formula (I) are disclosed which are vitronectin receptor antagonists and are useful in the treatment of osteoporosis wherein: A is CH2 or O; R1 is H, halo or C1-6alkyl; R2 is H, C1-6alkyl or CH2NR''R''; X is O or CH2; Y is (a), (b), (c), (d), (e), (f) or (g); G is NR'', S or O; R' is H, C16alkyl, OC1-6alkyl, SC1-6alkyl, NR''R'' or halo; each R'' independently is H or C1-6alkyl; and s is 0, 1 or 2; or a pharmaceutically acceptable salt thereof.
Patent CA-2307009-A1 (CA)
Inventor: TRIBE ROBERT JAMES
IPC: H03M1/30
Filed: 2000-04-27
Abstract: Conventional syringe pumps have a sensor mechanism to measure the size of the barrel of the syringe. In the present invention, an arm is swung against the barrel and coupled to a strip mask having a row of transparent apertures of differing length. The mask extends above a CCD array of sensing elements and below a concave mirror, which produces a collimated beam of radiation on the mask from an LED. The length of sensing elements exposed to radiation through an aperture in the mask gives an approximate indication of barrel size; the position of an edge of the aperture gives an accurate indication. The pump compares the barrel size with information relating size to syringe type and produces an indication of syringe type on a display.
Patent CA-2308442-A1 (CA)
Title: Processes for preparing grafted copolymers
Inventor: GOLDBLATT IRWIN LEONARD
IPC: C08F291/00
Filed: 1998-10-28
Abstract: Methods are disclosed for making graft copolymers. The methods comprise the steps of: (a) providing (i) an ethylene/propylene (EP) copolymer or other graftable polymer, (ii) an ethylenically unsaturated sulfur-, nitrogen- and/or oxygen-containing monomer, and (iii) an amount of an initiator sufficient to graft said monomer and EP  copolymer or other graftable polymer, (b) introducing said EP  copolymer or other graftable polymer into an extruder, (c) introducing said monomer into the extruder, (d) introducing said initiator into the extruder; wherein at least one of the above-identified reactants in (a) is introduced in the presence of a polar solvent; and (e) reacting said EP copolymer or other graftable polymer, monomer and initiator by operating said extruder, thereby forming the graft copolymer. This invention also relates to methods of making a dispersant viscosity index improver and methods for making a lubricating oil. This invention further relates to graft copolymer products made by the aforementioned methods.
Patent CA-2310546-A1 (CA)
Inventor: MORCOM GARY
IPC: F16L39/00
Filed: 2000-06-01
Abstract: A well production apparatus includes a down-hole gear pump and a transport assembly to which the gear pump is attached. The transport assembly is formed from a string of modular pipe assemblies having one or more passages for carrying production fluid from the bottom of the well to the surface. The passages can be arranged in a side-by-side configuration, and include pressure and return lines such as used to drive a hydraulic motor connected to the gear pump. The modular pipe assemblies can have two, three, four, or more passages, and can be stepped relative to each other to give a unique assembly orientation. The modular assemblies have mating fitting that can be tightened without the need to spin the pipe joints at the same time.
Patent CA-2311743-A1 (CA)
Title: Architecture for an application framework
Inventor: HEFFERNAN PATRICK
IPC: G06F3/0485
Filed: 1998-12-01
Abstract: This invention describes an application framework and method. The framework provides means for encapsulating a set of data plus a definition of the process steps to be applied thereto. A user interface is provided comprising a work area means for displaying results of a process, a process selection area means for selecting a predetermined process, a sub-process navigation area means and a tools area means for displaying a plurality of tools for the process being displayed.
Patent CA-2313162-A1 (CA)
Title: Forgery prevention sheet
Inventor: KURIHARA HIDEO
IPC: B32B7/023
Filed: 1999-10-07
Abstract: A multi-layered sheet giving a forgery prevention effect by developing different appearances when the upper surface or lower surface is irradiated with an ultraviolet ray. In a first embodiment, fluorescence coloring layers respectively developing different hues are provided on the upper surface side and the lower surface side respectively, a fluorescence coloring layer on the upper surface side only develops a fluorescence color to permit observation from the upper surface when an ultraviolet ray is applied from the upper surface side, and at least a fluorescence coloring layer on the lower surface side develops a color to permit observation from the upper surface when an ultraviolet ray is applied from the lower surface side. In a second embodiment, an opacity in an area extending from the upper surface to a fluorescence coloring layer is not lower than 97 % and that in an area extending from the lower surface to a fluorescence coloring layer is not higher than 96 %, and an ultraviolet radiation from the upper surface does not permit a printed pattern to be observed, whereas an ultraviolet radiation from the lower surface permits the printed pattern to be observed.
Patent CA-2314531-A1 (CA)
Inventor: YOUSSEF YOUNES
IPC: F16K15/03
Filed: 2000-07-25
Abstract: A backwater valve (for preventing the flow of liquid in a reverse direction when water backs up in the valve) has a gate which sealingly engages the input opening to the valve chamber so as to prevent the flow of water out of or into the input opening.  The gate is angularly moveable about a pivot point between a lower, closed position in which the input opening is closed by the gate and an upper, open position in which the input opening is open. Linked to the gate, but positioned angularly away from the gate, is a float.  The float and the gate are linked such that gravity normally maintains the float in a lower position and the gate in the upper, open position but, when liquid backs up into the value, the float will float to an upper position thereby moving the gate into the lower, closed position thereby closing the input opening and preventing liquid from flowing out of the valve through the input opening.
Patent CA-2315520-A1 (CA)
Inventor: BRUCE DOUGLAS G
IPC: A01B35/26
Filed: 2000-08-09
Abstract: The present invention has several aspects to it, one of which is the provision of a chisel point which is straight and tapered from its thinnest part at the extreme front to a thicker part at the rear thereof for causing a sweep to wear longer than prior art sweeps. This sweep also improves soil penetration and is self-sharpening. Another aspect of the present invention is to provide an earth working sweep having a front end, a right side, a left side, and a central upper portion for connecting the sweep to an implement. It also has a right rear wing portion and a left rear wing portion with an intermediate portion connecting the front end to the central upper rear portion and the left and right rear wing portions. A right edge and a left edge have concave edges on the front and convex edges on the back so as to form a somewhat S-shaped configuration which reduces scrap when being made and adds to the longevity and performance of the sweep. Another aspect of the present invention is a method of making a ground engaging sweep from a sheet of metal which has two parallel sides, a first end and a second end. The edges of the sweep are cut so that the right side of one sweep is a mirror image of the left side of the next adjacent sweep so that no material is wasted therebetween as they are cut from one sheet of material. By using this method, as much metal as possible is utilized in the sweep itself rather than having wasted metal as scrap and thereby enhancing the life and performance of such sweep.
Patent CA-2315615-A1 (CA)
Inventor: SCHWEITZER EDMUND O JR
IPC: G01R31/02
Filed: 2000-07-27
Abstract: A fault indicator for three phase sheathed cables includes a flexible collar unit which fits over the cable.  Magnetic pole pieces within the collar unit having associated magnetic windings are aligned with the three conductors within the cable to produce signals indicative of the current level in each conductor. An alarm unit receives the signals and sounds an alarm in the event the current in any conductor exceeds a predetermined threshold level to indicate the occurrence of a fault. The voltage level of the current indicating signals may be utilized to align the magnetic core assemblies with the conductors.
Patent CA-2315887-A1 (CA)
Title: Free solution ligand interaction molecular separation method
Inventor: VAN REIS ROBERT D
IPC: G01N30/02
Filed: 1998-12-10
Abstract: The present invention is directed to novel methods for enhancing the ability to separate a species of interest from other different species present in a free solution mixture thereof which takes advantage of interactions that occur between soluble, small molecular weight ligands and the species of interest. The small molecular weight ligands employed in the present invention function to interact with a species of interest in a mixture of different species through either affinity, hydrophobic and/or ionic interactions, thereby altering the molecular weight, hydrodynamic volume and/or isoelectric point of the species of interest and rendering it separable from other component(s) in the mixture.
Patent CA-2316209-A1 (CA)
Title: Device and method for gating transmission in a cdma mobile communication system
Inventor: AHN JAE-MIN
IPC: H04B7/26
Filed: 1999-12-07
Abstract: A method for determining a gating rate in a base station for a CDMA  communication system is disclosed. The method comprises transmitting information for assigning a dedicated control channel and a traffic channel to a mobile station, when a call is generated; after call setup, transmitting a message requesting mobile station's capability information to the mobile station; receiving the capability information including gating availability information of a reverse pilot signal and information about at least one gating rate, transmitted from the mobile station in reply to the request message; and determining a gating rate according to the capability information, transmitting information about the determined gating rate to the mobile station, and transitioning to an active state. The mobile station's capability information includes information about gating availability and at least one gating rate, when gating is available.
Patent CA-2321552-A1 (CA)
Title: Vpsa process using improved adsorbent materials
Inventor: NOTARO FRANK
IPC: B01J20/08
Filed: 1999-02-26
Abstract: The invention relates to the use of adsorbent materials that have been selected on the basis of their relationship between that material's intrinsic rate and equilibrium properties.
Patent CA-2325024-A1 (CA)
Inventor: BECKE SIGURD
IPC: C07F7/08
Filed: 1999-03-11
Abstract: L'invention concerne de nouveaux composés dendrimères, leur procédé de production et leur utilisation comme catalyseurs pour la production de polymères, notamment leur utilisation comme cocatalyseurs de métallocène aux fins de polymérisation de composés insaturés.
Patent CA-2325662-A1 (CA)
Inventor: TALLY FRANCIS P
IPC: C12Q1/68
Filed: 1999-04-14
Abstract: A system has been constructed which is suitable for tetracycline-inducible gene expression in Gram-positive bacteria such as Staphylococcus aureus and Bacillus subtilis. The replicon/host gene expression system is tightly regulated, can be used in complex as well as minimal media, and can produce a high level of gene expression upon induction, with a variety of gene products. The gene expression system is suitable for production of products toxic to the host cells, and can be used, for example, for the analysis of gene expression and gene products in Gram-positive bacteria, and in a test of the effect of a peptide or polypeptide inhibitor of an S. aureus enzyme on the growth of S. aureus cells in culture or during infection of an animal.
Patent CA-2325819-A1 (CA)
Title: Seed-coat promoters, genes and gene products
Inventor: HU MING
IPC: A01H5/00
Filed: 1999-04-13
Abstract: The present invention is directed to isolated genomic sequences that are differentially expressed within seed-coat tissues. These DNAs are expressed within the inner integument, thick, or thin, walled parenchyma, endothelium, palisade, hourglass, or stellate parenchyma cells of the seed-coat. Furthermore, this invention relates to promoter regions obtained from genomic sequences that are differentially expressed in seed-coat tissues, and their use for directing seed-coat specific expression of genes of interest within transformed plant cells or plants.  Exemplified promoters include those obtained from the differential screening of a seed-coat library and cryptic promoters obtained using T-DNA tagging using a promoterless marker gene.
Patent CA-2328500-A1 (CA)
Title: Marqueurs polymorphes de l'antigene-1 de la tumeur cancereuse de la prostate (pcta-1)
Inventor: BLUMENFELD MARTA
IPC: G16B30/00
Filed: 1999-06-04
Abstract: La présente invention concerne la séquence génomique et les séquences d'ADNc du gène PCTA-1. L'invention se rapporte également à des marqueurs bialléliques du gène PCTA-1 et à l'association établie entre ces marqueurs et le cancer de la prostate. L'invention concerne un moyen permettant de déterminer la prédisposition d'un individu au cancer de la prostate, et un moyen permettant de diagnostiquer le cancer de la prostate et de pronostiquer et/ou de détecter une réponse de traitement éventuelle à des agents agissant contre le cancer de la prostate.
Patent CA-2328683-A1 (CA)
Title: Single-bolt bar-bracket mount
Inventor: HAWES TIMOTHY R
IPC: B62D25/18
Filed: 2000-12-18
Abstract: The invention relates to a bracket-mounting assembly for mounting a bar bracket to a vehicle frame, the bar bracket being adapted to carry vehicle accessories such as a mudflap. The bracket-mounting assembly attaches to a vehicle frame via a single bolt passed through a penetration in the vehicle frame and threadably connected to the bracket-mounting assembly by a central threaded hole in the bracket-mounting assembly. The bracket-mounting assembly further includes a generally vertically-oriented shaft opening for receiving a portion of the bar bracket and supporting the bar bracket with respect to the vehicle frame. The bracket-mounting assembly includes a rotation-resisting connector for inhibiting rotation of the bracket-mounting assembly relative to the vehicle frame about the axis of the bolt.
Patent CA-2328831-A1 (CA)
Inventor: GOH EE BEEN
IPC: A61K38/12
Filed: 2001-01-09
Abstract: The invention provides assays for quorum-sensing autoinducer and antibiotic activities. In some embodiments a recombinant reporter gene construct in a host strain includes a reporter coding sequence under the transcriptional control of a promoter that is responsive to a selected autoinducer. In an alternative aspect, the invention provides for the use of quorum-sensing antagonists with antibiotics. In some embodiments, the co-administration of an antibiotic and an antagonist of quorum-sensing may alleviate adverse effects that would result from the induction of quorum-sensing systems by an antibiotic that would otherwise act as an autoinducer.
Patent CA-2330102-A1 (CA)
Title: Tetrahelical/curved bicycle crank arm/connecting rod
Inventor: KARSDON JEFFREY
IPC: B62M3/00
Filed: 1998-08-07
Abstract: A curved, tetrahelix bicycle crank arm com-posed of a helical array of tetrahedra is disclosed.  This design will transmit the propelling force away from the top dead center point providing more efficient use of the propelling energy. With this tetrahelical design a hollow core is possible that will reduce weight and permit lubrication if needed without reducing strength. This design is also applicable to the connecting rod of internal or external combustion engine.