baber/WOPTO huggingface dataset:
Patent CA-2258611-A1 (CA)
Title: Fluid vane motor/pump
Inventor: HARRISON LESLIE MERVYN
IPC: F01C21/08
Filed: 1996-05-28
Abstract: A motor/pump (10) comprises a housing (12) defining a cavity (18) between sealed ends (14 and 16). Rotor (24) having a substantially hollow body (26) is supported by the housing (12) for rotation within the cavity (18) about a rotation axis (28) which is parallel to but offset from longitudinal axis (30) of the cavity (18). A plurality of vanes (32) are retained by the rotor (34) for movement radially of the rotation axis (28). The vanes (32), rotor (24) and housing (12) are juxtaposed so that a substantially sealed chamber is formed between adjacent vanes (32), inner surface (34) of housing (12) and outer circumferential surface (36) of the rotor body (26). First and second ports (20, 22) are formed in the housing (12) and located so as to be disposed in different chambers. A split sleeve (122) is disposed within the rotor (24) for biasing the vanes (32) radially outwardly from the rotation axis (28) wherein axially opposite ends of said vanes (32) are disposed inboard of opposite first and second ends of said rotor body so that in use only a length of said axially opposite ends of each vane which extend beyond an outer peripheral surface (36) of said rotor body can slidingly contact respective adjacent ends of said housing (46, 56).
Patent CA-2262884-A1 (CA)
Title: Egf-like factor from chromaffin granules and glia cell-derived neurotrophic factor with survival-promoting activity on daergic neurons
Inventor: UNSICKER KLAUS
IPC: A61K38/18
Filed: 1997-07-28
Abstract: The present invention relates to chromaffin granule-derived EGF-like proteins that are involved in promoting survival of DAergic neurons, to nucleotide sequences encoding said proteins or a functionally active derivative or part thereof, and to processes for their preparation. The present invention relates further on to glia cell-derived neurotrophic factors that are capable of promoting survival of DAergic neurons, to nucleotide sequences encoding said factors or a functionally active derivative or part thereof, and to a process for their preparation.
Patent CA-2265581-A1 (CA)
Inventor: LUBARD STEPHEN C
IPC: G06K9/00
Filed: 1997-09-09
Abstract: Surface relief of a finger (11) is read using an optical-fiber prism unit (110), with fiber terminations at one end (101) to contact the surface, and at the other (120) for light passage along fibers from the first. Light enters where NA < 0.5 and fiber diameter is constant with longitudinal position, to light the first-end terminations.
Patent CA-2266667-A1 (CA)
Title: Low density, light weight intumescent coating
Inventor: HANAFIN JOSEPH W
IPC: C08K5/3492
Filed: 1997-09-23
Abstract: A low density, epoxy-based intumescent fire resistive coating, having a density below about 1.10 grams/cc, and most preferably below about 1.0 grams/cc, and a method for forming the same, are disclosed. This method includes the steps of forming an epoxy-based intumescent mastic, having minute particles of amorphous silica dispersed therein. The mastic is then sprayed in droplets on at least one surface of a substrate to form a low density mastic coating on the surface. The low density mastic coating then cures to form a low density, intumescent fire resistive coating.    Preferably, the method of invention further includes the step of dispersing at least one type of gas within the mastic, or within at least one part of the mastic, to further reduce the density of the cured intumescent coating.
Patent CA-2271113-A1 (CA)
Inventor: ERIKSSON HANS
IPC: H03F1/52
Filed: 1997-11-07
Abstract: In an arrangement for protecting the output transistors in a power amplifier (1) against temperatures above a predetermined temperature value, a temperature sensor (Q1) is provided adjacent to the output transistors to sense their temperature and influence the power amplifier (1) when the predetermined temperature value is reached. The temperature sensor (Q1) is adapted to vary the driving current of the power amplifier (1) inversely proportional to the temperature of the output transistors for temperature values between the predetermined temperature value and a predetermined higher temperature value.
Patent CA-2272166-A1 (CA)
Inventor: PERRIARD JACQUES
IPC: G01L1/16
Filed: 1999-05-18
Abstract: An electronic circuit serving as an interface between a piezoelectric transducer and a circuit for processing a measuring signal provided by said transducer, said electronic interface circuit serving for providing a constant direct current to said piezoelectric transducer, and for pre-processing an electric signal provided by the transducer via a voltage modulator, said electronic interface circuit being connected to said voltage modulator by a cable having two terminals at each end, the two terminals at a first end of the cable being connected to the output of the voltage modulator and the two terminals at a second end of the cable being connected to said electronic interface circuit. In order to eliminate the error signals caused in particular by common mode interference voltages ("frame voltage"), said electronic interface circuit is characterized in that it comprises (a) a first direct current source for providing a first constant current to said transducer through an electric current loop; (b) a second direct current source for absorbing a second constant current returning from said transducer to said electronic circuit through said loop while said transducer is supplied with said first current ; (c) one or a plurality of passive elements allowing to absorb the difference between said first constant current and said second constant current.
Patent CA-2275368-A1 (CA)
Inventor: ROLET GUY
IPC: G05B19/42
Filed: 1996-12-20
Abstract: A method for producing a dental prosthesis includes computer modeling of a three-dimensional prosthetic cap based on an human implantation zone. The method first includes casting an impression of the implantation zone of the human body. Then, on the basis of the moulded impression, a digital three-dimensional representation (R1) of the implantation zone is made by sensing the implantation zone with a sensor. From this, a digital representation (R1c) of the internal surface of the prosthesis is defined on the basis of the digital three-dimensional representation (R1) of the implantation zone. A digital three-dimensional representation (R2) of the external surface of the prosthesis is then defined on the basis of the surrounding parameters of the prosthesis and the digital three-dimensional representation (R1c). Then, a digital three-dimensional representation (R3) of the external surface of the cap is defined on the basis of the external (R2) and internal (R1c) surfaces of the prosthesis, taking into account the criteria of the mechanical and aesthetic characteristics which the cap must have. Based on this three-dimensional model, an actual prosthetic cap can be produced if the cap meets certain requirements.
Patent CA-2279568-A1 (CA)
Inventor: LOPEZ GOMEZ JOSE LUIS
IPC: B61K9/12
Filed: 1999-07-29
Abstract: Installation and process for measuring the unsoundness and diameter of railway wheels using a rolling rail (2) along which the railway wheel (1) to be measured passes, and a guard-rail (8) to center said wheel during the measurement process.      Several compact light sources (3) project compact light beams (9) over the wheel (1), such that they continuously interfere with the wheel flange and rolling band, the images produced by said compact light beams being projected over an opaque filter (4). A video camera (5) captures the images projected over the opaque filter (4) and sends them to a computer (6), where said images are filed to process them later on. The measurement process is initiated by a trigger system (7) which detects the presence of a wheel (1) and activates or deactivates the measuring equipment. The invention is applicable to the repair and maintenance of railway wheels.
Patent CA-2285087-A1 (CA)
Inventor: WENSTROM RICHARD F JR
IPC: A61B17/56
Filed: 1998-02-25
Abstract: A system (10) for anchoring tissue to bone includes an anchor member (12) having an outer bone engaging wall (22), a distal end (18), a proximal end (20), and a suture receiving slot (28) extending partially into the anchor member forming an internal passageway ending in a suture seat (26). The suture seat is integral with the anchor member, and is formed within the anchor member.
Patent CA-2286029-A1 (CA)
Title: Helical drive wheelchair
Inventor: DOROFTEI MIGHEL
IPC: B62M1/24
Filed: 1998-04-06
Abstract: A wheelchair is provided with a helical drive transmission (30). A rectilinear input (60) to the helical drive (30) causes an output gear (55) to rotate, thus providing power to rotate the driving wheels of a wheelchair.  The helical drive may include, for example, a compound helix, a drive with a twisted flat bar, or a concentric helix drive. Add on components may be provided to convert a conventional wheel-chair powered by a helical drive mechanism (30).
Patent CA-2287009-A1 (CA)
Title: Analyzing transaction information
Inventor: SHEA JOHN P
IPC: G06Q30/00
Filed: 1999-10-20
Abstract: Affiliation information is acquired that identifies parties affiliated with an organization in a manner that enables the parties to be associated with commercial transactions occurring outside the organization. In connection with a commitment by a customer to a commercial transaction that produces transaction information for effecting payment electronically from a source other than the organization, it is determined whether the commercial transaction is on behalf of a party affiliated with the organization based on the affiliation information and the transaction information. Referral information is acquired that indicates a referral event and a destination associated with the referral event. In connection with a commitment by a customer to a commercial transaction that produces transaction information for effecting payment electronically, an extent is determined to which the commercial transaction is a result of the referral event based on the referral information and the transaction information.
Patent CA-2287642-A1 (CA)
Title: A process and device to measure the signal quality of a digital information transmission system
Inventor: HOYER WOLFGANG
IPC: H04L12/56
Filed: 1999-10-27
Abstract: The process to measure the signal quality of a digital information transmission system using a scanning device with adjustable direct current threshold can determine a signal parameter for the signal quality (Q-factor), which can determine the bit-rate from an unknown input signal and with its help a clock signal can be generated to scan the input signal with the scanning device. The device includes a detection device as well as a clock generator, which is connected to the detection device and receives a pre-adjustment signal, and which synchronises with the input signal over a phase locked loop with the scanning device through phase comparison. Process and device allow the monitoring of systems in a shortest time and facilitate statements concerning the bit-rate of the respective line section as well as concerning the size of the Q-factor and all relating variables.
Patent CA-2287881-A1 (CA)
Title: Vitamin d3 analogs with bis c-20 side chains
Inventor: MANCHAND PERCY SARWOOD
IPC: C07F/
Filed: 1998-04-22
Abstract: This invention provides Vitamin D3 analogs of the Formula (1) wherein:  X is H2 or CH2; Y is hydrogen, hydroxy or fluorine; Z is hydroxy;  R1 and R2 are a(C1-C4) alkyl or fluoroalkyl, or R1 and R2 together with C25 form a (C3-C6) cycloalkyl or cyclofluoroalkyl; R3 and R4 are a (C1-C4) alkyl or fluoroalkyl, or R3 and R4 together with C25' form a (C3-C6) cycloalkyl or cyclofluoroalkyl; A is a single bond or a double bond; B1 is a single bond, an E-double bond, a Z-double bond or a triple bond; and B2 is a single bond, an E-double bond, a Z-double bond or a triple bond;  and prodrugs thereof; intermediates and methods for preparation of these analogs, pharmaceutical compositions containing such analogs and methods for treatment of osteoporosis, hyperparathyroidism autoimmune diseases and for the treatment and prevention of neoplastic diseases.
Patent CA-2288857-A1 (CA)
Title: Improved acid catalyzed polymerization
Inventor: PRIDDY DUANE B
IPC: C08F12/04
Filed: 1998-04-24
Abstract: The present invention is an improvement in a free radical bulk polymerization process for preparing a high molecular weight polymer from a vinyl aromatic monomer characterized in that the polymerization is conducted in the presence of an acid catalyst having a pKa at 25 ~C of less than 2, or salt thereof, wherein the improvement comprises dispersing the acid catalyst, or salt thereof, in a (meth)acrylic acid or ester thereof, prior to contact with the vinyl aromatic monomer. The (meth)acrylic acid or ester allows the acid catalyst to be dispersed within the vinyl aromatic monomer without causing cationic polymerization. The acid catalyst, or salt thereof, catalyzes the free radical polymerization reaction such that high molecular weight polymers are produced in reasonable reaction times.
Patent CA-2289603-A1 (CA)
Title: Redundancy control device for equipping a lock
Inventor: DOMINE DIDIER
IPC: E05B47/00
Filed: 1998-05-22
Abstract: The present invention relates to a control device (20) with redundancy for fitting to a lock having a mechanism (21) for locking an unlocking an access door, the device (20) being adapted to manage a change of state of this lock under predetermined conditions and to ensure that this state current is kept current up until the next change of state. This device (20) comprises means (30) for controlling the mechanism (21) and two units (31; 32) for providing like instructions to the control means. This device (20) is characterized in that the first unit (31) has a structure different from that of the second unit (32), while effecting common functions, and in that the control means behave functionally as an AND gate to the inputs of which are applied the instructions from the units respectively, when the device is functioning in a normal situation.
Patent CA-2290287-A1 (CA)
Inventor: WHITEHEAD JAMES H
IPC: H02G3/18
Filed: 1999-11-24
Abstract: A poke-through device for installation in a hole extending through a concrete floor structure of a building. The device provides a four-plug arrangement, together with two data connection jacks, all located in a concealed manner. The device alternatively provides a two-plug arrangement, together with four data connection jacks. An additional alternative embodiment provides an arrangement having six data connection jacks.
Patent CA-2291657-A1 (CA)
Inventor: CLAVERIE SERGE
IPC: G01R31/28
Filed: 1998-05-29
Abstract: La présente invention concerne un procédé de test d'un équipement électronique relié à un calculateur couplé à une console d'affichage et d'entrée de données avec un écran, réalisant une interface avec un opérateur. Le test comprend une liste de commandes à exécuter. Il consiste: à afficher une feuille de test sur l'écran formée de groupes de cellules (C1 à C6), un groupe étant associé à une commande, et pour au moins une commande, son groupe de cellules comprenant une cellule (C3) qui est à renseigner avec un libellé de la commande, une cellule (C4) qui est à renseigner avec un résultat attendu de la commande, une cellule (C5) qui est réservée à un résultat effectif de la commande, une cellule (C6) qui est réservée au résultat d'une comparaison entre le résultat effectif et le résultat attendu; à afficher, après l'exécution de la commande, le résultat effectif et le résultat de la comparaison. Application notamment aux tests des différents organes d'un aéronef qu'ils aient lieu en phase de conception, de production ou d'exploitation.
Patent CA-2292301-A1 (CA)
Title: Window drain
Inventor: WARK SCOTT ARTHUR
IPC: E06B7/14
Filed: 1999-12-16
Abstract: Window drain comprises, in general, a base having a horizontally extending lower surface and a sloping downwardly and outwardly upper surface. There to the base here are connected: a front flange, an upstanding rear rib, an end flange at each end, window supports and spacers attached on the front flange. In one embodiment, the window drain is made for a window of a specific width. In another embodiment, the window drain, is versatile so it can be used for windows of different widths. In a third embodiment, the window drain can be made, in situ, for different window widths.
Patent CA-2292385-A1 (CA)
Inventor: VIVEROS MARISA S
IPC: G06Q30/00
Filed: 1999-12-16
Abstract: Most online services are not geared to support disconnected mode of operation of a mobile device. This invention describes a method to make online services available to mobile users in disconnected mode by exchanging structured electronic messages. Such as a system can be used to build a custom service by combining service offerings from different service providers, and transmit the same to a personal agent an intermediary who would then provide the customized service.
Patent CA-2293429-A1 (CA)
Inventor: JAKUBOWSKI JOSEPH ANTHONY
IPC: A61K31/00
Filed: 1998-06-01
Abstract: L'invention porte sur un procédé de traitement de patients souffrant de différents troubles thrombotiques dont, non limitativement, les attaques, les thromboses veineuses, les infarctus du myocarde, l'angor instable, les obturations soudaines suivant une angioplastie ou la mise en place d'une prothèse endovasculaire, ou une thrombose consécutive à une opération sur le système vasculaire périphérique. Ledit traitement est une thérapie combinée d'aPC et d'antiplaquetaires dont, non limitativement: l'aspirine, le clopidogrel, le ReoPro? (abciximab), la ticlopidine et les antagonistes des récepteurs IIb/IIIa. Cette synergie permet de réduire les dosages des différents agents utilisés dans la thérapie combinée.
Patent CA-2293696-A1 (CA)
Title: Hyaluronic acid derivative based cell culture and biodegradable three-dimensional matrix
Inventor: CALLEGARO LANFRANCO
IPC: C12N5/071
Filed: 1998-06-10
Abstract: The present invention relates to a biological material comprising a matrix consisting of at least one derivative of hyaluronic acid on which endothelial cells, glandular cells such as islets of Langerhans and liver cells, skin adnexa, germinative cells of hair bulbs, and keratinocytes are grown, optionally in presence of a medium treated with fibroblasts or in a co-culture with fibroblasts. It is also described the process for the production of said biological material and its use for human and veterinary use, in cardiovascolar and oncological surgery, in transplants, to enhance the biological process of tissue vascularization and for aesthetic use, and also for the screening of medicaments or toxic substances and as a support gene transfection. Biological material comprising an efficacious cell culture and a biocompatible and biodegradable three-dimensional matrix consisting of a hyaluronic acid derivative.
Patent CA-2294896-A1 (CA)
Inventor: VOROKHOVSKY YAKOV LEONIDOVICH
IPC: H03B5/04
Filed: 1998-06-30
Abstract: The present invention relates to a quartz generator that comprises an outer housing (1), a plate (2) as well as an inner housing (6) at the bottom of which the resonator is placed in its own housing (9). The inner housing (6) is made in the shape of an open box of a highly thermo-conductive material and has its bottom resting tightly against one side of the central part (3) of the plate (2). All the thermostatically controlled elements of the generator are mounted on the central part (3) of the plate (2), wherein said central part is separated from the peripheral part by slots (4) extending through the thickness of the plate. The central part is linked to the peripheral part by narrow bridges (5) which are located between the ends of said slots (4). Heating members (10) and a main temperature detector (11) are mounted on the side walls of the inner housing (6), wherein said housing also includes highly thermo-conductive rods (8) that extend through the plate (2) in its central part (3) in the vicinity of each of the bridges (5). The open side of the box (6) is closed with a thin lid (12) of copper so as to define a thermal insulation gap relative to the housing of the quartz resonator (9). A copper lid (13) is attached at the ends of the thermo-conductive rods (8) protruding above the opposite surface of the plate (2) so as to define a thermal insulation gap relative to the thermostatically controlled elements which are mounted on this side of the plate (2). The thermal regulator is realised as a bridge circuit and includes an additional thermo-sensitive arm having an additional temperature detector (15) mounted on the peripheral part of the plate (2).
Patent CA-2297714-A1 (CA)
Inventor: AGUILAR FREDDIE S
IPC: B67D7/04
Filed: 2000-01-31
Abstract: A system for delivering fuel comprising a receiver coupled in liquid communication with a fuel tank of a vehicle, a nozzle coupled in liquid communication with a fuel source and interactive alignment structure for mating the nozzle with receiver in response to movement of the receiver and the nozzle.
Patent CA-2298805-A1 (CA)
Title: Method for preparing 3-cyano-2,4-dihalogen-5-fluor-benzoic acid
Inventor: MARHOLD ALBRECHT
IPC: C07C253/30
Filed: 1998-07-18
Abstract: The present invention relates to a process for preparing 3-cyano-2,4-dihalogeno-5-fluoro-benzoic acid, to intermediates for carrying out the process and to processes for preparing these intermediates.
Patent CA-2302874-A1 (CA)
Title: Jnk3 modulators and methods of use
Inventor: WHITMARSH ALAN J
IPC: C12N5/10
Filed: 1998-10-05
Abstract: The c-Jun NH2-terminal kinase (JNK) group of MAP kinases are activated by exposure of cells to environmental stress. The role of JNK in the brain was examined by targeted disruption of the gene that encodes the neuronal isoform JNK3. It was found that JNK3 is required for the normal response to seizure activity. Methods of screening for molecules and compounds that decrease JNK3 expression or activity are described. Such molecules or compounds are useful for treating disorders involving excitotoxicity such as seizure disorders, Alzheimer's disease, Huntington disease, Parkinson's disease, and ischaemia.
Patent CA-2303097-A1 (CA)
Inventor: FACHIN GABRIELE
IPC: A61K47/48
Filed: 1998-09-22
Abstract: Water soluble polymeric conjugates of camptothecin comprise N-(2-hydroxypropyl)methacryloylamide units linked via a spacer of the formula -Gly- (CH2)n-CO-Gly wherein n = 2-8 to the C-20 position of a camptothecin residue. The conjugates possess enhanced antitumor activity and decreased toxicity with respect to the free drug. A process for their preparation and pharmaceutical compositions containing them are also described.
Patent CA-2303723-A1 (CA)
Title: Scalable, secure cash payment system, method and article of manufacture for effecting commercial transactions using internet
Inventor: MCMASTER JOHN
IPC: G06Q20/12
Filed: 2000-03-10
Abstract: A cash payment system and method for effecting commercial transactions using public communication system like Internet and utilizing a hybrid of an encryption technology and a recordable, USB port connectable microprocessor devices. A computer system will issue a series of digital cash points, which may be purchased at par value by a customer having an account with the system administrator. Cash points will be used by customers to acquire goods and services from the Internet merchant sites. System administrator will re-purchase cash points at set value for cash at the point of transaction. By eliminating seller's requirement to obtain customer's financial information in order to complete transaction, the system will particularly protect privacy of the buyer.