baber/WOPTO huggingface dataset:
Patent CA-2338956-A1 (CA)
Title: Threaded and coupled connection for improved fatigue resistance
Inventor: EVANS M EDWARD
IPC: E21B17/042
Filed: 1999-07-23
Abstract: A coupling (10) for a threaded and coupled connector used to secure the ends of the tubular pipe sections together comprising a tubular coupling body (11) with axially extending, internally threaded areas (11a, 11b) at each end of the body (11). Tapering external surfaces (11h, 11f) are formed on the body (11) which extend from a central portion of the body (11) toward each end of the body (11) and reduce in diameter in an axial direction from the central portion. The taper length (11h, 11f) is functionally related to the minimum outside diameter of a pipe section (12) to which the coupling is to connect.
Patent CA-2339977-A1 (CA)
Title: Premium synthetic lubricant base stock
Inventor: HABEEB JACOB JOSEPH
IPC: C10N70/00
Filed: 1999-08-24
Abstract: A premium synthetic lubricating oil base stock having a high VI and low pour point is made by hydroisomerizing a Fischer-Tropsch synthesized waxy, paraffinic feed wax and then dewaxing the hydroisomerate to form a 650-750 °F+ dewaxate. The waxy feed has an initial boiling point in the range of about 650-750 °F, from which it continuously boils up to at least 1050 °F and has a T90-T10 temperature difference of at least 350 °F. The feed is preferably hydroisomerized without any pretreatment, other than optional fractionation. The 650-750 °F+ dewaxate is fractionated into two or more base stocks of different viscosity.
Patent CA-2340357-A1 (CA)
Title: Embedded quadtree wavelets in image compression
Inventor: WANG MENG
IPC: H04N7/26
Filed: 1999-08-10
Abstract: The invention is a new effective and fast method and apparatus for still image compression. The present invention implements an embedded progressive sorting scheme in a quadtree-like structure. In contrast to zerotree-based methods for wavelet coding, the invented embedded quadtree wavelet (EQW) method exploits the inherent spatial self-similarity within individual layers of the multiresolution decomposition hierarchy. This self-similarity offers higher predictability of the data within the same resolution level, and therefore usually provides a higher performance in seeking a compact code. The computation involved in the EQW method is more efficient than in the zerotree wavelet coding, and the produced bitstream is more robust to channel noise. The present invention can be effectively used for object-oriented shape coding or region coding in image and video compression coding systems.
Patent CA-2343105-A1 (CA)
Inventor: NAKAHARA KEN
IPC: H01S5/327
Filed: 1999-09-09
Abstract: A semiconductor light-emitting device has a structure where an active layer (5) which emits light when current is injected and has a composition of, e.g ., CdxZn1-xO (0  x  1) is sandwiched between an n-type clad layer (4) and a p- type clad layer (6) both made of materials having band gaps wider than that of the active layer (5). It is preferable that the composition of the clad laye rs (4, 6) is, e.g., MgyZn1-yO (0  y  1). The band gap of the ZnO material is narrowed. The materials of the active layer and clad layers of a semiconduct or light-emitting device such as a blue light-emitting diode or laser diode in which an active layer is sandwiched between clad layers can be an oxide semiconductor which can be wet-etched, easily handled, and excellent in crystallinity, thereby providing a blue light-emitting device excellent in light emission characteristics.
Patent CA-2343817-A1 (CA)
Title: One piece retainer plate for a torque converter
Inventor: REDMOND DANIEL W
IPC: F16H45/02
Filed: 1999-09-15
Abstract: A method for manufacturing a drive plate or one-piece torsional vibration damper retainer plate (20) for a torque converter (26) is disclosed. The retainer plate includes an annular periphery (36) curled into a generally C-shaped channel (4b) for retaining at least one spring (56). The method includes the following steps. First, the retainer plate (20) is stamped primarily to form a central plate segment (34), an annular periphery (36), and a hub opening (44). Next, the annular periphery of the retainer plate is pre-curled. The plate is then heat treated to enhanced the physical properties of the retainer plate. The spring is disposed within the pre-curled annular periphery. Finally, the annular periphery of the retainer plate is completely curled into the generally C-shaped channel to substantially surround the spring thereby preventing the spring from being removed from the C-shaped channel of the retainer plate during operation of the retainer plate.
Patent CA-2346435-A1 (CA)
Title: Method for routing calls based on subscriber's location
Inventor: ISOTALO LAURI
IPC: H04W4/02
Filed: 1999-10-08
Abstract: The present invention is based on defining the location of a connection (7) by means of coordinates. The coordinate system employed is advantageously a conventional coordinate system, in which the location can be resolved by the subscriber (7) or network terminal device using the connection (7) with the help of, e.g., a satellite positioning system. According to the invention, the coordinates of the connection (7) are transmitted from the connection over the telecom network to a location data base (3) maintained by at least one telecom operator. When calls are routed according to the invention, the location of the A- or B-subscriber, or even of both parties, are analyzed by retrieving the coordinates of the respective connection (7) from the location data base (3). If so needed, the coordinates are interpreted with another data base, called a linking data base, where the coordinates and geographical areas are linked with each other. In a service resolving the A-subscriber location, the incoming call can be routed, e.g., to the telephone exchange of the firm owning the destination extension and the location coordinates of the A-subscriber or the geographic area of the calling party can be transmitted over a communication channel to the called firm to be used in internal call forwarding. The location of the calling party and the call forwarding routine linked thereto may also be exhaustively analyzed and defined in the system of the telecom operator with the provision that authorization to such an operation has been given.
Patent CA-2348514-A1 (CA)
Title: In utero transplantation of human mesenchymal stem cells
Inventor: THIEDE MARK
IPC: A61K35/28
Filed: 1999-11-12
Abstract: The present invention is directed to mesenchymal stem cells for transplantation in utero. Such mesenchymal stem cells may be employed in a method of treating a fetus, or in a method of engrafting mesenchymal stem cells, or in a method of preparing an organ for transplantation.
Patent CA-2348824-A1 (CA)
Title: 12 human secreted proteins
Inventor: GREENE JOHN M
IPC: A61P17/02
Filed: 1999-10-27
Abstract: The present invention relates to 12 novel human secreted proteins and isolat ed nucleic acids containing the coding regions of the genes encoding such proteins. Also provided are vectors, host cells, antibodies, and recombinant  methods for producing human secreted proteins. The invention further relates  to diagnostic and therapeutic methods useful for diagnosing and treating disorders related to these novel human secreted proteins.
Patent CA-2349315-A1 (CA)
Inventor: ZIMMERLING HANS G
IPC: E01B2/00
Filed: 2001-05-11
Abstract: A support structure for an elevated railway, for example an elevated linear induction motor (LIM) railway, includes separately formed open U-shaped support girders and multiple guideway slab elements made of reinforced concrete. The girders are typically pre-formed and then assembled atop of appropriate supporting columns before the guideway slab elements are individually mounted and aligned atop the girders. For an LIM railway, the top surface of the guideway slabs includes pre-formed lateral canted rail support surfaces and a raised central LIM rail support to facilitate the use of economical fittings to attach the carriage rails and LIM rail to the guideway, and integrally formed lateral parapets to provide derailment protection. A mold design and mold support apparatus are provided for forming the guideway slabs from reinforced concrete wherein the mold support apparatus facilitates support of the mold in casting and resting positions.
Patent CA-2350162-A1 (CA)
Title: Adjustable side saddle riding habit
Inventor: BOWLBY LINDA A
IPC: A41D1/14
Filed: 2001-06-08
Abstract: An improved side saddle riding skirt is disclosed. The improved side saddle riding skirt includes a knee loop coupled to a knee dart of the skirt, and a strap coupled to the hem of the skirt. This strap is removably coupled through the knee loop to prevent the skirt from flying up. The side saddle riding habit further includes mechanisms for adjusting the skirt to a range of different sizes.
Patent CA-2350542-A1 (CA)
Inventor: RESCONI LUIGI
IPC: C08F4/642
Filed: 1999-11-10
Abstract: L'invention concerne une nouvelle classe de métallocènes pontés par du méthylène représentés par la formule (I), dans laquelle M représente un métal de transition du groupe 3, 4, 5, 6, un lanthanide ou un actinide; X représente un ligand sigma à un seul anion; R?1¿ peut représenter des radicaux alkyle, cycloalkyle, aryle, alkylaryle ou arylalkyle; R?2¿ peut représenter un radical alkyle, cycloalkyle, aryle, alkylaryle, arylalkyle ou halogène; p vaut 0-3; m vaut 0-2; et n vaut 0-4. L'invention concerne également les ligands correspondants, un nouveau procédé de préparation de ces ligands et des systèmes de catalyse contenant lesdits métallocènes pontés par du méthylène.
Patent CA-2351380-A1 (CA)
Inventor: TORKELSON JOHN M
IPC: B29B17/04
Filed: 1999-11-17
Abstract: Procédé permettant d'obtenir des particules polymères selon lequel des rebuts de polymères, un matériau polymère vierge et leurs mélanges sont acheminés vers des vis d'extrusion entrecroisées qui tournent afin de transporter le matériau polymère dans le sens de la longueur et qui le soumettent à une pulvérisation par cisaillement à l'état solide et à une compatibilisation polymère in-situ si deux ou plusieurs polymères incompatibles sont présents. Des particules pulvérisées uniformes sont ainsi produites, sans ajout d'un agent de compatibilisation. Ces particules pulvérisées peuvent être soumises directement à un traitement par fusion (comme des poudres d'alimentation) et donnent, de façon inattendue, un produit de couleur claire sensiblement homogène. Les particules pulvérisées peuvent également être mélangées de manière plus intime, par rapport à d'autres mélanges obtenus par mélange par fusion, et elles peuvent être soumises à un traitement par fusion permettant d'obtenir une inversion de phase sans retard important. Les particules pulvérisées comportent également une microstructure stable.
Patent CA-2352947-A1 (CA)
Title: Weed puller and bagger
Inventor: HILES SCOTT
IPC: A01B1/16
Filed: 2001-07-12
Abstract: A lawn and garden weed removal and collection device comprised of a long tubular stem with T-shaped handle grips at one end and opposing foot rests on the other end located just above a weed taking probe. The weed-taking probe is tapered in design and connected to the tubular stem opposite the handgrips.  The probe is to be driven into the soil by the application of force applied to the footrests. A deflector is located along the tubular stem adjacent to a cut out to guide weed cores out of the stem. A bag-mounting platform is permanently attached to the stem. The collection bag is affixed to the tubular stem by spring clip or elastic cord.
Patent CA-2354130-A1 (CA)
Title: Fluid flow rate switching device
Inventor: ARIAGNO SCOTT
IPC: A61M5/168
Filed: 2000-09-12
Abstract: A fluid flow rate switching device providing a plurality of precise user selectable flow rates. Generally, the device includes a housing having a port and a plurality of passages. Respectively disposed in each of the passages is a rigid capillary tube for regulating the flow rate of a therapeutic fluid through the passages. Further, a valve is rotatably connected to the housing for operably connecting and disconnecting the port from one or more of the passages.
Patent CA-2357141-A1 (CA)
Inventor: HUANG JOHNNY
IPC: B65D73/00
Filed: 2001-09-07
Abstract: A tool display card for a tool of the type having a pair of pivotably interconnected handles. The card includes a track. A slide is mounted on the track and is moveable in a path between a first position whereat the slide surrounds the working surfaces of the tool to prevent pivotable movement of the handles of the tool. The slide may be moved to a second position whereat the slide is spaced from the working surfaces of the tool to enable the handles to pivot relative to each other.
Patent CA-2357475-A1 (CA)
Title: Travel toothbrush
Inventor: FLORENCE IRA
IPC: A46B7/04
Filed: 2001-09-17
Abstract: The present invention, in one aspect is directed to a toothbrush comprising an elongate handle and a brushing head. The elongate handle has first and second portions. The first portion includes a generally rectangular shaped body with grip means for facilitating holding the toothbrush during use. The second portion includes an elongate body having a securing means for retaining the brushing head in a fixed position relative to the elongate handle.   An axis extends between the first and second portions of the elongate handle such that the brushing head is angularly tilted relative to the axis.
Patent CA-2357774-A1 (CA)
Title: Fleece bandage
Inventor: WOOD MARTA
IPC: A61F13/02
Filed: 2001-09-13
Abstract: A bandage for legs, arms, hands, feet, hips, back, neck, shoulders or head made in any shape from a breathable thermal fleece material. The fleece bandage's function is to provide therapeutic warmth and support to muscles and joints to increase circulation and reduce pain. This is done be encircling said body part with thermal fleece. A wrap is constructed from fleece and is secured by means of stitching or a fastening device such as velcro, tape, pins or clips.
Patent CA-2359532-A1 (CA)
Inventor: VAN DIEPEN PETER J
IPC: B63B1/06
Filed: 2001-09-27
Abstract: This invention provides an improved shape of the bow of a high speed ocean-going ship. It introduces a set of inverted and inclined surfaces that enclose the bow from above, and cause the hull to move through the waves rather than over them. These surfaces generate a downward lifting force that counteracts the displacement force. Displacement force causes a traditionally-shaped bow to lift above waves and initiate pitching movement. The new type of bow reduces or eliminates pitching movement and slamming loads on the hull, thus improving ride quality, and enabling designers to specify lighter structure under the existing rules. This in turn reduces the overall weight of the craft, enabling reduction in the power required to achieve the service speed, reduction in fuel consumption, and reduction in the associated capital and operating costs.
Patent CA-2359768-A1 (CA)
Inventor: GISLER RENE
IPC: C07C233/69
Filed: 2001-10-23
Abstract: This invention relates to a .beta.-hydroxyalkylamide having the general Formula I:    where R1 is H or a linear or branched C1 to C10 alkyl and R2 is a linear or branched C1 to C5 alkyl.
Patent CA-2364707-A1 (CA)
Inventor: HAUBER CLEMENS
IPC: H04L12/70
Filed: 2000-02-02
Abstract: In order to authorize a connection between two neighboring network nodes (N1 , N4) in a connecting line bundle (TG) consisting of several connecting lines,  a search algorithm determines on which of the connecting lines (T1,..., Tn) ca n the connection still be established. To this end, said new connection is initially classified. In accordance with said classification, different sear ch cycles are executed to detect a connection line with sufficient free residua l transmission capacity. The connection is rejected in case of an unsuccessful  search.
Patent CA-2365423-A1 (CA)
Title: Bridge crane, especially a container-loading bridge
Inventor: KRUEGER-BEUSTER HELMUT
IPC: B66C19/00
Filed: 2000-06-07
Abstract: Bridge crane, particularly container loading bridge, having a portal, a boom, a track system laid on the boom and crane trolleys which travel on the tracks, in which the track system comprises a working track (10), whose two rails have a mutual spacing corresponding to the wide spacing of the running wheels (12) of the crane trolleys (14) in a working position and a return track (16), whose two rails have a mutual spacing corresponding to the narrow spacing of the running wheels (18) of the crane trolleys (14) in a return position, as well as two arched pieces (18, 20) arranged about the area of the ends of the boom where the working track (10) and return track (16) meet, and the two wheel suspension mechanisms of the crane trolleys (14) are constructed so as to rotate freely about a vertical axis (22) and the two rotation axes (22) of the crane trolleys (14) are arranged with a spacing with respect to the longitudinal axis thereof corresponding to half the mutual spacing of the two rails of the return track (16).
Patent CA-2373115-A1 (CA)
Title: Lock
Inventor: COWPER BRIAN EDWARD
IPC: E05B15/10
Filed: 2001-02-22
Abstract: A lock for a door (10) has a casing (11), a blot (55), a pivoted operating handle (36) operable to retract the bolt, and lock means comprising a lock cylinder (39). The lock cylinder (39) is secured to the housing by a screw (38g) covered by a rose (110) around said part of the housing, the rose being secured in place by fixing screws (38h) which can only be accessed upon removal of the casing assembly from the door and with the bolt in a retracted position. In this state the shank of the screwdriver to undo each fix-ing screw can easily be passed through respective aligned openings in a cover plate (12) of the housing assembly, the bolt (55), and the housing (38), thereby allowing removal of the rose and subsequent replacement of the cylinder (39) without the need to remove com-ponents of the door lock itself.
Patent CA-2373733-A1 (CA)
Title: Full flow tubing stationary valve pump apparatus
Inventor: MICHAEL CLARENCE
IPC: E21B43/12
Filed: 2002-02-27
Abstract: A full flow tubing stationary valve pump apparatus includes an outer annulus barrel, an inner working barrel positioned in radially inwardly spaced relation from the outer annular barrel to define a vertical flow annulus therebetween, an elongated inner plunger disposed within and vertically movable by upstrokes and downstrokes relative to the inner working barrel, a lower intake valve assembly disposed within and supported by the outer annulus barrel below the inner plunger, and an upper discharge valve assembly disposed within and supported by the outer annular barrel below the inner plunger and above the lower intake valve assembly. The outer annular barrel defines a working chamber between the lower intake valve assembly and upper discharge valve assembly into which crude oil can be drawn upon the upstroke of the inner plunger and from which crude oil can be forced upon the downstroke of the inner plunger.
Patent CA-2374003-A1 (CA)
Inventor: SHINAL EDWARD C
IPC: C12N5/071
Filed: 2000-05-15
Abstract: Provided is a composition and a method for increasing cellular uptake of bioactive agents, particularly those compounds termed "small molecules" into  the cells of mammalian tissue, such as the epithelial cells of the mucosa.</ SDOAB>
Patent CA-2377177-A1 (CA)
Inventor: TOIA LUCA
IPC: B01J20/02
Filed: 2000-06-20
Abstract: Evaporable getter devices for calcium evaporation based on the use of the compound CaAl2 are described, which allow to obtain in the kinescope of televisions and computer screens calcium films having gas sorption properties comparable to those of the barium films normally used in the industry.
Patent CA-2379434-A1 (CA)
Inventor: YANO YUTAKA
IPC: H01S3/067
Filed: 2002-03-27
Abstract: A Raman amplifier of the present invention includes a loss measuring unit (110) for measuring loss distribution of an object of measurement by means of OTDR based on reflected light with respect to outputted test light; an optical coupler (114) in which the test light is supplied to a first input terminal thereof and one of output terminals thereof is connected to an optical fiber transmission line; a wavelength filter (116) inserted between the loss measuring unit (110) and the optical coupler (114); a control circuit (200) for generating a control signal for reducing an error signal obtained by comparing a Raman gain obtained with a reference value; and an excitation light source (140) for changing an excitation light power based on the control signal.
Patent CA-2384007-A1 (CA)
Inventor: OLSSON MATS
IPC: B60T17/00
Filed: 2000-10-12
Abstract: Pour épurer l'air d'un système d'air comprimé, on le fait traverser successivement un pré-filtre (6), du gel de silice à larges pores (7), du gel de silice à petits pores (8), un tamis moléculaire (9) et un filtre fin (10).
Patent CA-2386024-A1 (CA)
Inventor: GREGORIADIS GREGORY
IPC: A61K47/24
Filed: 2000-10-02
Abstract: An oral vaccine comprises liposomes and complexed or, preferably, entrapped DNA operatively encoding an antigen, in which the liposomes are formed from components including cationic compounds and zwitterionic phospholipids. The hydrophobic groups within the liposome forming compounds must include at least one group which is saturated. This is believed to raise the transition temperature, rendering the liposomes more stable when delivered orally. The compositions have been found to give detectable increased in IgA levels, secreted immunoglobulins of importance in efficacious oral vaccine delivery.
Patent CA-2387068-A1 (CA)
Inventor: COLE DAVID
IPC: A61F2/06
Filed: 2001-08-10
Abstract: Methods and devices for forming magnetic anastomoses between hollow bodies.  End-to-side, side-to-side and end-to-end anastomoses can be created with or without a mechanical connection between the components. The anastomotic components (542) may have various constructions and may be secured to a vessel in various manners, for example, magnetically, mechanically or adhesively.  Also provided are alternative delivery devices (550), as well as devices (770, 730) for checking the position of a component on a loaded delivery device (772), and for checking the seal between a vessel and an anastomotic component (774, 776) secured thereto.
Patent CA-2390039-A1 (CA)
Title: Theft prevention system for trailers with drop yard feature
Inventor: KEE DAN B
IPC: B60R25/08
Filed: 2000-11-28
Abstract: There is disclosed a theft prevention system for trailers interacting with the customary pneumatic trailer braking system having spring actuated parking brakes that apply when in absence of pressure in an air supply line to the trailer from a tractor-mounted compressed air tank. A normally closed solenoid valve is connected in series with the pressurized air supply line that supplies air to release the trailer parking brakes and a signal receiver adapted to receive an electrical signal from a transmitter in the tractor cab must be caused to actuate the solenoid to open the valve to release the trailer parking brakes. The signal from the transmitter to the receiver may be a dc, ac, or high frequency signal transmitted over the normally provided electrical cable from tractor to trailer or may be a radio transmitted signal wherein of the kind employed for garage door openers. The solenoid valve is preferably provided with a pneumatic latch so that the parking brakes will remain released as long as air pressure is provided to the trailer once an enabling signal is received by the receiver. The signal transmitter is provided with appropriate security means to prevent unauthorized use which may be a key switch, a key pad for entry of an identification number, a magnetic strip card reader or other conventional device.