baber/WOPTO huggingface dataset:
Patent CA-2268501-A1 (CA)
Inventor: WONG JAMES BING
IPC: B63B7/04
Filed: 1999-04-12
Abstract: A collapsible watercraft made up of 6 identical watertight floats arranged in line to form 2 hulls, connected and fixed in position with bolts by 2 watertight deck floats to give adequate buoyancy for a normal weighted person. A custom curved bow and aft section attached gives the form of a canoe. When this section is covered, it resembles a kayak. Flexibility of arrangement of the deck and modules, with variation of width of deck, allows the insertion of a sail base, daggerboard, small motor, rudder, and by extension longitudinally and transversely, a watercraft of limitless size. The most simple form for one person has dimensions and weight that is acceptable by any airline without surcharge when checking in, acceptable by any backpacker who also happens to be canoer or kayaker, in terms of weight, dimensions and function, and assembled and disassembled in minutes.
Patent CA-2269828-A1 (CA)
Title: Integrated interferometer
Inventor: LU YICHENG
IPC: G01B9/02
Filed: 1997-11-14
Abstract: An interferometer integrated on a silicon-on-insulator chip (which comprises a layer of silicon (1) separated from a substrate (2) by a layer (3) of insulating material), the optical chip having integrated thereon fibre connection means (13) for connecting the optical chip to one or more optical fibres (6), the fibre connection means (13) comprising a groove (5) formed in the substrate (2) for receiving an optical fibre (6), waveguide means (4) for transmitting light to or from the fibre connection means (13), the waveguide means (14) comprising one or more rib waveguides (9) formed in the layer of silicon (1), and at least one phase modulator (14) for altering the phase of light travelling along a rib waveguide (9) on the chip, the arrangement being such as to form an interferometer in which light transmitted along different optical paths can be combined and the effective path length of at least one on the optical paths can be altered by means of the phase modulator (14).
Patent CA-2270236-A1 (CA)
Inventor: MORRIS ARTHUR J
IPC: E21B33/1295
Filed: 1997-11-14
Abstract: An improved apparatus for transmitting signals through a well tool is provided. In a broad aspect, the present invention is a communication conduit in a well tool comprising: a cylindrical mandrel (10) having a longitudinal bore (12) therethrough, an inner diameter (ID), an outer diameter (OD), and an outside circumference (14); a well tool (16) attached to the outside circumference (14) of the cylindrical mandrel (10); and at least one signal transmitting passageway (18) positioned in the mandrel (10) between the inner diameter and the outer diameter. In a specific embodiment, the well tool (16) may be a packer. The at least one signal transmitting passageway (18) may be used as a carrier for electrical or fiber optic conductors, or it may be a pressure retaining member whereby pressurized hydraulic fluid may be passed through to a device below the well tool without interruption.
Patent CA-2275851-A1 (CA)
Inventor: ASANO KIYOMORI
IPC: F01N13/08
Filed: 1999-06-21
Abstract: An improved two stroke, multiple cylinder engine having combustion chambers and a single exhaust conduit for discharging exhaust gasses from the combustion chambers. In accordance with one feature of the invention, the combustion chambers are unified to two groups and respective combustion chambers belonging to the same group are generally simultaneously fired by a firing system. Otherwise, the entire combustion chambers are generally simultaneously fired. In accordance with another feature, the exhaust conduit has an attenuation mechanism for positive pressure reflection waves generated in the exhaust conduit. In a preferred embodiment, the attenuation mechanism comprises an inner pipe tapered downstream and having a plurality of apertures.
Patent CA-2276545-A1 (CA)
Inventor: WELDY ROSS
IPC: B60J7/10
Filed: 1999-06-29
Abstract: A tonneau cover assembly is provided including a front rail, a rear rail, and two side rails. The rear rail and two side rails include a pair of opposed lips defining a channel therein. The charmel slidably receives a plurality of snap receptacles for cooperating with mating snaps of a tonneau cover having a snap-type mechanism. The channel also receives a hook-type retention member and retains it therein so that a tonneau cover having a hook-type fastening mechanism can be secured thereto. Accordingly, a single rail network can be used with either a snap-type tonneau cover fastening mechanism or a hook-type tonneau cover fastening mechanism.
Patent CA-2276909-A1 (CA)
Inventor: BRIDOUX CHRISTOPHE
IPC: H04B10/564
Filed: 1999-07-06
Abstract: The device comprises two modulators imposing power and phase modulation on optical signal. The transmission device comprises a first electro-optic modulator (1,2) which responds to an electrical input signal (E), producing a phase controlled optical signal (S) with an optical power modulated between low and high levels. The signal has a phase shift within each time cell which contains a low power level. In order to improve its flexibility of use, the device also comprises a second electro-optic modulator (3,4) controlled by the input signal (E), and optically coupled to the first modulator. This acts to apply to the phase controlled optical signal a complementary power and/or phase, in order to modify the its extinction rate and/or give to the signal a transitory 'chirp'.
Patent CA-2277149-A1 (CA)
Inventor: KOTLIER BERNARD M
IPC: B62K27/12
Filed: 1998-01-12
Abstract: A trailer (18) of the type for securing to and following a bicycle. The trailer (18) includes a frame, a wheel (12) rotatably mounted on the frame, and an extension member (20) having first and second ends. The first end is hingedly connected to the frame such that the extension member (20) is selectively positionable between an extended position (30) wherein the extension member extends outwardly from the frame and a folded position wherein the extension member is disposed adjacent the frame for compactness of storage and transport.
Patent CA-2277244-A1 (CA)
Title: Method and apparatus for determining railcar order in a train
Inventor: HALVORSON DAVID H
IPC: B61L15/00
Filed: 1999-07-08
Abstract: A method and apparatus for determining railcar order in an ECP equipped train involving the inherent propagation delay of a pneumatic signal propagation in a brake air line as measured by each car and used to determine the car order in the train.
Patent CA-2285208-A1 (CA)
Title: Improved method for producing thiazolidinediones, and new thiazolidinediones
Inventor: KUEHNLE HANS-FRIEDER
IPC: C07D417/12
Filed: 1998-03-17
Abstract: The invention relates to an improved method for producing compounds of the formula (III) wherein A represents CH=CH or S, W represents O, X represents S, O or NR2, the radical R2 being hydrogen or C1-C6alkyl, Y represents CH or N, R  represents naphthyl, thienyl or phenyl which is optionally mono- or disubstituted with C1-C3 alkyl, CF3, C1-C3 alkoxy, F, Cl or bromine, R1 represents hydrogen or C1-C6 alkyl and n represents 1-3 by reacting compounds of the formula (IV) wherein A, W, X, Y, R, R1 and n have the meaning given above with activated aluminum in a protic solvent. The invention also relates to new compounds of the formula III and medicaments containing these compounds.
Patent CA-2285568-A1 (CA)
Title: Initiator with loosely packed ignition charge and method of assembly
Inventor: WALSH BRENDAN M
IPC: F42B3/13
Filed: 1998-03-31
Abstract: An initiator (100) assembled from a housing (112), an output charge (144) and an initiation means (110, 120, 58, 54) includes a pulverulent ignition charge (46a) disposed in direct initiation relation to the initiation means, and an output charge (144) that may contain a pulverulent deflagration-to-detonation transition (DDT) charge (144a) and an explosive base charge (144b). The ignition charge (46a) has an average particle size of less than 10 microns, or even less than 5 microns, e.g., 1 to 2 microns. The initiation means may include a semiconductor bridge (18) and the ignition charge (46a) may be compacted with a force of less than about 5880 psi, e.g., with a force of 1000 psi. In another embodiment, an initiator (210) includes a low-energy electrical initiator (234), a loosely packed BNCP ignition charge (218) and a pyrotechnical output charge (214).
Patent CA-2286139-A1 (CA)
Title: Circuit for actuating at least one electrode-less discharge lamp
Inventor: SCHLEICHER GOTTHARD
IPC: H05B41/24
Filed: 1999-01-27
Abstract: The present invention relates to a circuit for actuating at least one electrode-less discharge lamp (LP1), wherein said circuit comprises at least one voltage input (j10, j11) ensuring its power supply as well as electric connections (j12, j13) for at least one electrode-less discharge lamp (LP1). This circuit also includes control members for determining the presence or absence of at least one electrode-less discharge lamp (LP1) at the electric connections (j12, j13). These control members will provide the required starting or operation voltage to the at least one electrode-less discharge lamp (LP1) only if said lamp (LP1) is connected to the electric connections (j12, j13).
Patent CA-2289275-A1 (CA)
Inventor: KUMAR YATISH
IPC: H04B3/23
Filed: 1999-11-10
Abstract: A line card for coupling a subscriber line to a switching network the line card comprising an echo canceling circuit for reducing an echo signal received from the network and perceived at a user instrument coupled to the subscriber line. The network echo cancellation circuit utilizes a network model to predict an echo replica signal which is then subtracted either from the transmit or receive signals to the network The line card may include a far end echo cancellation circuit, a near end echo cancellation circuit or a combination of both.
Patent CA-2291409-A1 (CA)
Title: Tete d'abattage a entrainement axial munie d'une fixation robuste
Inventor: ROY NORMAND
IPC: A01G23/081
Filed: 1999-12-23
Abstract: Les têtes d'abattage à entraînement axial servant à retenir, couper et manipuler les arbres qui existent actuellement sur le marché utilisent un engrenage de type planétaire et sont fixées directement à un support installé à l'extrémité d'un bras manipulateur. Ce type d'engrenage a une structure complexe, nécessitant un entretien rigoureux et de plus, la fixation de la tête d'abattage à l'extrémité dudit bras manipulateur est inefficace telle qu'elle est présentement puisque ladite tête d'abattage se détache à cause de son poids. Ainsi, la présente invention remédie à tous ces inconvénients par un type d'engrenage plus simple et par une fixation robuste installée entre la tête d'abattage et le support situé à l'extrémité dudit bras manipulateur.
Patent CA-2292052-A1 (CA)
Title: Fastening element
Inventor: SCHLOSSER REIMUND
IPC: F16B19/14
Filed: 1999-12-09
Abstract: A fastening element including a spike having a stem and a head, and a guide member including a substantially cylindrical base body having a central bore, and a plurality of longitudinal ribs which extend along an entire length of the base body, are uniformly distributed over a circumference of the base body, and project radially past an axial projection of a circumferential profile of the had of the spike, with each of the plurality of longitudinal ribs having at least one locking tongue projecting beyond an envelope curve (H) formed by the plurality of longitudinal ribs.
Patent CA-2293600-A1 (CA)
Title: Treatment of fabrics, garments, or yarns with haloperoxidase
Inventor: WINKLER JACOB
IPC: D06L4/40
Filed: 1998-06-09
Abstract: A new method of treating undyed fabrics, garments, or yarn comprising treating the undyed fabric, garment, or yarn in an aqueous medium with a haloperoxidase, a halide source and a hydrogen peroxide source.
Patent CA-2295552-A1 (CA)
Title: Cloned genomes of infectious hepatitis c viruses and uses thereof
Inventor: BUKH JENS
IPC: C07K14/18
Filed: 1998-07-16
Abstract: The present invention discloses nucleic acid sequences which encode infectious hepatitis C viruses and the use of these sequences, and polypeptides encoded by all or part of these sequences, in the development of vaccines and diagnostics for HCV and in the development of screening assays for the identification of antiviral agents for HCV.
Patent CA-2297663-A1 (CA)
Title: Molding system for rubber tractor tracks
Inventor: FIKE LOUIS THOMAS
IPC: B29D29/00
Filed: 1999-04-23
Abstract: A system for molding an endless tractor track (20) by wrapping uncured rubber (64), calendered cord (58) and wire cable (59) onto the rim of a building and curing drum (D), positioning the drum within a curing mold (M), withdrawing the drum from the mold, chilling the drum and then separating the parts of the drum to remove the completed tractor track.
Patent CA-2299191-A1 (CA)
Title: Method and apparatus for facilitating the collapse of an extruded tubular film to a flat width on the startup of extrusion
Inventor: DUCHARME PAUL EDMUND JR
IPC: B29C48/10
Filed: 2000-02-21
Abstract: A method and apparatus is disclosed for lacing an extruded tube of a non derivatized cellulose through an S-wrap to collapse the tube to a flat width.  The lacing to form the S-wrap is accomplished without slowing the extrusion speed.  At the start of the extrusion operation, the extrusion path leads between a pair of horizontally lacing members. After the leading edge of the extruded tube has passed downwardly through the space between the lacing members, the members are rotated as a unit to bring them into contact with opposite sides of the extruded tube.  This collapses the and creates the S-wrap.
Patent CA-2301190-A1 (CA)
Title: Transmitter assembly for an underground utility meter installation
Inventor: BLOSS KENNETH R JR
IPC: G08C17/04
Filed: 1998-07-29
Abstract: An improved assembly (10) for housing electronics for remote reading of meter reading data in a subsurface enclosure (11) includes a first inner enclosure (40) of metal for housing the receiver/transmitter circuitry (90), a second inner enclosure (69, 86) for housing a battery (65) and an outer enclosure (24) of plastic which encloses both of the inner enclosures and additionally provides a sealed compartment for an antenna (50).
Patent CA-2301806-A1 (CA)
Title: Methods for lowering platelet counts
Inventor: LAKSHMANAN MARK CHANDRAKANT
IPC: A61K31/55
Filed: 1998-08-17
Abstract: A method of safely lowering platelet count in a human which comprises the administration to a human in need thereof of an effective amount of a compound of formula (I), wherein R1 and R3 are, independently, -H, -CH3, -CO(C1-C6alkyl), or -COAr, where Ar is optionally substituted phenyl; R3 is selected from the group consisting of pyrrolidine, piperidine, and hexamethyleneimino;  or a pharmaceutically acceptable salt or solvate thereof.
Patent CA-2302317-A1 (CA)
Inventor: GUPTA-BANSAL REKHA
IPC: A61K38/00
Filed: 1998-08-24
Abstract: L'invention concerne un procédé d'inhibition de l'activation du complément par la voie alterne, y compris l'inhibition de la formation de produits d'activation du complément par la voie alterne.
Patent CA-2302896-A1 (CA)
Inventor: LIU QI
IPC: H04L12/16
Filed: 2000-03-22
Abstract: A microtranscation business model is disclosed. The business model is unique in that although the consumer is responsible for the making the transaction the manufacturer is responsible for the small microtransaction associated with the actual transfer of product information. The business model is counter intuitive but is the most appropriate business model for many internet based promotions and repositories. A methodology is disclosed for deploying the microtransaction on a coupon repository site and discussed in the context of related information from a recipe repository on the same or related site. The business process also describes a means for a retailer or service provider to enter promotion information in an automated manner from a standard web browser. The business model also presents a means of providing a secure coupon using encryption or a digital signature at the point of sale thereby preventing the fraudulent production of unauthorized coupons.
Patent CA-2303991-A1 (CA)
Inventor: MCADAMS ROY
IPC: B01D53/32
Filed: 1998-09-15
Abstract: The reactor (101) is for use in processing materials in or carried by a gaseous phase. A plurality of cylindrical individual reactor chambers (103, 106, 701) is provided in an array. The reactor chambers (103, 106, 701) are electrically matched with each other and pulses of electrical energy are supplied under sequential control to each of the individual reactor chambers (103, 106, 701).
Patent CA-2304026-A1 (CA)
Inventor: COCAULT ALAIN
IPC: E04D3/32
Filed: 1998-10-13
Abstract: The invention concerns a prefabricated roofing element in the form of a laminate consisting from its inner surface towards its outer surface exposed to poor weather conditions, of at least a first continuous layer constituting said element core based on a thermosetting binder and reinforcing materials, constituting said element core, of a second continuous protective coating layer, consisting of a mixture of at least a synthetic resin, a constituent staining in its volume said resin and a catalyst. Said roof cover element is characterised in that it further comprises at least a third discontinuous layer of paint unevenly distributed on the surface of the second layer and consisting of materials immiscible with the second layer constituents to form stains at the second layer surface.
Patent CA-2304197-A1 (CA)
Title: Reduction of sperm sensitivity to chilling
Inventor: BUHR MARY
IPC: A01N1/02
Filed: 1998-09-22
Abstract: A method of preserving sperm of domestic animals especially porcine and bovine. Cryopreserved boar spermatozoa is much less fertile than that of other species, which could be due to damage to sperm membrane lipids during the cryopreservation process. Incorporation of selected lipids improves the survival of boar spermatozoa following cryopreservation. Liposomes were made from lipids extracted from head plasma membrane (HPM) of boar spermatozoa or from selected lipids (SL) which contained specific phospholipids and fatty acyl chains. SL and HPM improved sperm viability (SYBR-14 and propidium iodide) and motility during cooling to 5°C, with SL~ egg yolk better than or equal to HPM (P<0.05). Post-thaw, egg yolk showed a strong cryoprotective effect. Compared to BPM, SL-treated sperm had higher post-thaw viability, progressive motility and total motility in the extender including egg yolk and higher viability in the extender excluding egg yolk (P<0.05).
Patent CA-2308970-A1 (CA)
Title: Extruder die head
Inventor: LINKIES JURGEN
IPC: B29C48/10
Filed: 2000-05-18
Abstract: An extruder die head comprises an internal cylindrical mandrel and a shell, which encloses the mandrel concentrically. Between the mandrel and shell an annular channel is formed, which is connected to an annular die slit. A polymer melt is fed through a line to the annular channel. To prevent the polymer melt in the area of the start of the annular channel from penetrating into any spaces that form between the mandrel and the shell due to differential thermal expansion, a ring is located between the mandrel and the shell. The material of the ring is chosen to have a coefficient of thermal expansion such that when the die head is heated up due to the polymer melt, the ring seals any spaces between the shell and the mandrel. In an alternative arrangement, the materials of the mandrel and the shell are chosen such that the seat, which connects the mandrel to the shell and is located below the annular channel, becomes more tightly sealed on heating.
Patent CA-2309391-A1 (CA)
Inventor: LI JINHE
IPC: C12N5/02
Filed: 1998-12-17
Abstract: The present invention provides isolated nucleic acid molecules comprising a polynucleotide encoding either of two alternative splice variants of human sel-10, one of which is expressed in hippocampal cells, and one of which is expressed in mammary cells. The invention also provides isolated sel-10 polypeptides and cell lines which express them in which A.beta. processing is altered.
Patent CA-2309673-A1 (CA)
Inventor: BONTA JEFFREY D
IPC: H04W16/18
Filed: 1998-07-31
Abstract: A radiotelephone service planning system (10) and method determines best servers in communication systems by determining an interference based communication threshold using interference information (46), such as frame error rate data, in addition to pathloss information (38) between a communication unit (22) and the plurality of other communication units (24a-24c). The radiotelephone service planning system (10) and method generates an image indicating the most probable best server of the other communication units (24a-24c) for the communication unit (22) based on the interference based communication threshold information. Also, the system utilizes variable signal threshold data (32) for a communication unit to allow flexibility in determining a best server site in view of varying threshold limits. If desired, the system can also accommodate three-dimensional best server planning by taking into account elevational variations and their effects from the perspective of both the mobile communication unit and the other communication unit.
Patent CA-2314400-A1 (CA)
Title: Signal encoding for transmission of multiple digital signals over single physical medium
Inventor: GABARA THADDEUS JOHN
IPC: H03M5/16
Filed: 2000-07-21
Abstract: Two or more digital signals are encoded using two or more respective line codes. The line codes are chosen in conjunction with the data rates of the digital signals such that the encoded signals are substantially orthogonal to each other in the frequency domain. As such, the two or more encoded signals may be combined and transmitted via a single physical medium with little or no interference. A transmitter for encoding and transmitting the digital signals contains line coders for encoding the digital signals and a combiner for combining the encoded signals for transmission via a single physical medium. A receiver for receiving and decoding the combined encoded signal contains filters for extracting the individual encoded signals and line decoders for decoding the individual encoded signals to generate the original digital data signals.
Patent CA-2314860-A1 (CA)
Title: Control system for vehicle washing system
Inventor: GAUTHIER DAVID M
IPC: B60S3/04
Filed: 2000-08-02
Abstract: A control system for a vehicle washing system is provided. The control system utilizes a plurality of sensors to determine the length of a vehicle, the position of a vehicle relative to a fixed track upon which a gantry travels, and the profile of a vehicle relative to the track. The control system preferably begins a vehicle washing routine by commanding a gantry to travel from a beginning of the track to the end of the track while awaiting the interruption of an photoelectric beam for an entrance eye which first detects the front end of a stationary vehicle within the vehicle washing area. The gantry continues to move towards the end of the track while awaiting detection of a portion of the vehicle which is higher than a preset distance from ground. Upon detection of such vehicle portion, the control system establishes parameters setting a front safe tilt zone. In similar manner, the control system determines a rear safe tilt position for the vehicle washing system. Thereby providing a vehicle washing system which may process along a length of vehicle with deployed washing members while ensuring contact between such members and the vehicle is avoided.