baber/WOPTO huggingface dataset:
Patent CA-2176803-A1 (CA)
Title: Hitching guide with trailer tongue override protection
Inventor: MERCHANT JUDITH A
IPC: B60D1/36
Filed: 1996-05-16
Abstract: A hitch guide for guiding a trailer tongue to a hitch ball installed at the rear of a vehicle, said hitch guide comprising sides, a front and a rear and having two converging portions extending from proximate the sides of said guide and converging intermediate said sides, said two converging portions terminating proximate the top thereof and providing thereat overriding prevention portions extending from proximate the sides of the guide to intermediate said sides, saidconvergence extending frontwardly away from a trailer tongue in use, whereat when said hitch guide is installed on a trailer hitch proximate the rear of a vehicle, as the vehicle is moved toward the trailer, the trailer tongue will engage the converging portions of said guide and will be guided to the ball hitch untilthe trailer tongue reaches the convergence of said portions whereat the trailer tongue will be located adjacent to the ball hitch, and whereat during the guiding of the trailer tongue toward the ball hitch, any attempt of the trailer tongue to override said guide will be obviated by the override prevention portions of saidguide.
Patent CA-2177409-A1 (CA)
Inventor: THEISING JOHN L
IPC: H02K11/00
Filed: 1996-05-27
Abstract: A motor housing for a variable speed scroll saw or other operating tool is disclosed. The motor housing includes a motor as well as a printed circuit board mounted in the motor housing adjacent the motor. A switch is attached to the printed circuit board and extends outside of the motor housing. The switch is also attached to the motor housing. A switch lock-out is operably associated with the housing for disabling the switch until the switch lock-out is disengaged. Preferably, the switch lock-out is a releasable locking mechanism such as a padlock.
Patent CA-2177964-A1 (CA)
Title: Swimming aid
Inventor: FLURY MEINRAD
IPC: B63C9/125
Filed: 1994-11-11
Abstract: A single inflatable ring-shaped body can be drawn together and secured at the chest by means of a closure mechanism so as to form a neck loop and a back loop. The inflatable body can however be subdivided into several air compartments, each of which can be inflated using an inflation nozzle.
Patent CA-2179180-A1 (CA)
Inventor: BREITENBACH JOERG
IPC: A61K33/40
Filed: 1994-12-13
Abstract: Moulded bodies made of fibrous materials in which are embedded particles of cross-linked crospovidone-iodine or crospovidone-hydrogen peroxide are suitable as biocide deep-bed filters.
Patent CA-2181136-A1 (CA)
Inventor: WIKTOROWICZ JOHN
IPC: G01N27/447
Filed: 1995-01-23
Abstract: A Capillary Electrophoresis apparatus and method are disclosed which utilize a meltable plug in an end of the capillary tube to selectively pass small ionic contaminants electrophoretically and retain macromolecular analytes against one end of the plug until the plug is melted. When this plug is melted, the analytes and thecontaminants pass through unimpeded, This permits separation of the analytes from the contaminants during electrophoretic separation and enhances instrument resolution.
Patent CA-2183695-A1 (CA)
Title: Improved polyether-containing double metal cyanide catalysts
Inventor: LE-KHAC BI
IPC: B01J27/26
Filed: 1996-08-20
Abstract: Improved double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and from about 5 to about 80 wt.% of a polyether polyol that has tertiary hydroxyl groups. Compared with other DMC catalysts, those of the invention have excellent activity for epoxide polymerization, and they can be used to make polyols having very low unsaturation even at high epoxide polymerization temperatures.
Patent CA-2184586-A1 (CA)
Title: Rock bolt
Inventor: SKYBEY GHASSAN
IPC: E21D21/00
Filed: 1995-03-24
Abstract: This invention relates to a rock bolt or roof anchor (1), in particular to a rock bolt or roof anchor for use in an underground mine, or other tunnel. The invention also relates to a method of reinforcing a wall or ceiling in an underground mine or tunnel. In particular, the invention relates to a dowel, for example, a Rima dowel or coal rib anchor for use in a coal mine. The rock bolt (1) of one embodiment of the invention comprises: a shaft (2) having one end (5) threaded to receive a nut, the other end (6) being provided with a plurality of surfaces (3, 3a, 3b), each surface extending angularly about and longitudinally of the longitudinal axis of the shaft (2), and converging with respect to the axis towards the one end (5); and a plurality of collars (4, 4a, 4b), each collar (4, 4a, 4b) being associated with a respective one of the surfaces (3, 3a, 3b) and co-operating therewith so that upon relative movement of each collar (4, 4a, 4b) with respect to its associated surface (3, 3a, 3b) toward the other end, each collar (4, 4a, 4b) is caused to radially expand so as to project radially beyond its associated surface (3, 3a, 3b).
Patent CA-2186424-A1 (CA)
Title: Epoxy and epoxy-polyacrylate dispersions containing reactive diluent, processes for their production, and their use
Inventor: STENGEL-RUTKOWSKI BERNHARD
IPC: C08F283/10
Filed: 1996-09-25
Abstract: Aqueous, low-solvent coating compositions comprising a base resin dispersion comprising of an epoxy resin, prepared by condensation of one or more epoxide compounds having at least two epoxide groups per molecule and an aromatic polyol; a dispersant comprising a condensation product of an aliphatic polyol having a weight-average molar mass (Mw) of from 200 to 20,000 g/mol and an epoxide compound having at least two epoxide groups per molecule, and low molar mass, liquid, epoxy-functional compounds as diluents, and also water; an aqueous curing agent for the modified epoxy resin (I), which is suitable for curing at room temperature or at elevated temperatures (forced drying), components (I) and (II) being employed in mass fractions such that the ratio of the number of reactive epoxide groups in (I) to the number of amine hydrogen atoms in (II) is between 1:0.75 and 1:2. The coating compositions exhibit an extended pot life. They can be used to produce coatings and in water-soluble adhesives.
Patent CA-2187995-A1 (CA)
Inventor: CHAMBERLAIN GEORGE
IPC: A22B3/00
Filed: 1996-10-16
Abstract: An apparatus for anesthetizing animals for slaughter has a gas chamber with an inlet at one end and an outlet at another end, and an inclined inlet ramp extending to the inlet of the chamber and a declined outlet chute for receiving anesthetized animals from the outlet of the chamber.  The inlet ramp is sized to force the animals to proceed to the inlet in single file.  A continuous belly conveyor extends through the gas chamber from the inlet, through an anesthetizing gas zone, and through the outlet for supporting the animals on their bellies and transporting them through the gas chamber in single file at a rate sufficiently slow to ensure each animal is rendered unconscious by the time it reaches the outlet. The conveyor has a pickup portion extending from the inlet of the chamber into the inlet ramp for receiving individual animals and supporting them on their bellies for introduction into the chamber.
Patent CA-2188992-A1 (CA)
Title: Solar powered light fixture
Inventor: KOWALSKI STANLEY
IPC: F21S9/03
Filed: 1996-10-28
Abstract: A lighting assembly for directing light downward onto a surface, the assembly including a shield having two attached plates disposed in angled relation to each other and adapted for mounting above the lighted surface.  A solar panel is mounted on the top surface of the shield to convert light energy into electric power for recharging the battery.  A photocell is mounted on the top surface of the shield to measure the ambient light and provide the source for switching between the charging and lighting modes.
Patent CA-2190795-A1 (CA)
Title: Method and apparatus for delivery, deployment and retrieval of a stent comprising shape-memory material
Inventor: LASHINSKI ROBERT
IPC: A61F2/958
Filed: 1996-11-20
Abstract: A delivery, deployment and retrieval device for a stent made from a phase-change material includes a balloon catheter modified to allow the stent to be secured on the outside of the balloon without the need for a sheath. A temperature-controlled fluid to effect a phase change to expand the stent is injected through an inflation lumen to maintain the selected temperature and to inflate the balloon. The balloon maintains intimate physical and thermal contact with the stent during deployment. One or more exit apertures are provided for the fluid to escape from the inflation lumen and enhance the phase change by bathing the stent with the fluid.
Patent CA-2192401-A1 (CA)
Inventor: WEERACKODY VIJITHA
IPC: H04L1/00
Filed: 1996-12-09
Abstract: The present invention is a cost effective receiver using antenna diversity. Several illustrative embodiments are provided. In one embodiment, the receiver comprises a first antenna for receiving an information packet, an error detection decoder for determining if there are any errors in the information packet, a switch for switching from the first antenna to a second antenna, and a controller for controlling the switch to switch from the first antenna to the second antenna if an unacceptable number of errors are detected in the information packet.
Patent CA-2193669-A1 (CA)
Inventor: SMITH RODNEY SINCLAIR
IPC: F02M21/02
Filed: 1995-06-21
Abstract: A method and an arrangement for determining the presence of heat soak conditions in an internal combustion engine (1) of a type using fuel injection. Particularly useful when the or one of the fuels used in the engine (1) is susceptible to vaporisation in a fuel rail (8) due to high engine temperatures. The method includes the steps of measuring a first temperature in a tank (10) for the fuel, measuring a second temperature at the fuel rail (8), ascertaining the difference between the first and second temperature, wherein a significant difference indicates heat soak conditions. If heat soak conditions are detected then an auxiliary injector (20) may be operated or in dual fuel engines a higher boiling point fuel may be used.
Patent CA-2195176-A1 (CA)
Inventor: LEIB HARRY
IPC: H04B1/7115
Filed: 1997-01-15
Abstract: our la combinaison de signaux sur trajet en diversité comprenant des symboles modulés chacun selon l'une parmi un certain nombre de fonctions orthogonales (p. ex. Walsh), un combinateur de diversité comprend, pour chaque trajet, un démodulateur qui démodule chaque symbole de signal modulé selon une fonction orthogonale sélectionnée, un estimateur de phase qui évalue la rotation de phase et l'amplitude du signal sur trajet en diversité, à partir du signal démodulé, et un multiplicateur de signaux complexes qui élimine la rotation de phase et pondère l'amplitude du signal modulé sur trajet en diversité, selon la rotation de phase et l'amplitude estimées.  Le combinateur effectue la sommation des parties réelles des signaux modulés à élimination de la rotation de phase et à pondération sur les trajets en diversité, démodule le signal combiné selon l'ensemble des fonctions orthogonales et sélectionne le signal démodulé maximal pour chaque symbole afin de déterminer ainsi la fonction orthogonale sélectionnée pour le symbole.
Patent CA-2196356-A1 (CA)
Title: Transaction verification protocol for smart cards
Inventor: VANSTONE SCOTT A
IPC: G06Q40/00
Filed: 1997-01-30
Abstract: A protocol appropriate for smartcard purchase applications such as those that might be completed between a terminal or ATM and a users personal card is disclosed.  The protocol provides a signature scheme which allows the card to authenticate the terminal without unnecessary signature verification which is an computationally intense operation for the smart card. The only signature verification required is that of the terminal identification (as signed by the certifying authority, or CA, which is essential to any such protocol). In the preferred embodiment, the protocol provides the card and terminal from fraudulent attacks from impostor devices, either a card or terminal.
Patent CA-2199627-A1 (CA)
Inventor: BRAIDWOOD JULIAN CHARLES
IPC: A01N53/00
Filed: 1995-09-08
Abstract: The use of various pyrethroid compounds is disclosed for the treatment of the immature phases of sea lice infestation in fish, such as salmon, and for the prophylaxis of adult sea lice infestation in such fish.  Cypermethrin, high-cis-cypermethrin, lambda-cyhalothrin and deltamethrin are shown to be most effective.
Patent CA-2201557-A1 (CA)
Inventor: BAIRD HENRY SPALDING
IPC: G06V30/168
Filed: 1997-04-02
Abstract: The present invention provides a method useful in image recognition by employing the restoration of degraded images to produce an approximation of the original ideal artwork for the image.  That is, pursuant to the invention, a set of images is read from an image source and an attempt is made to recover, or closely approximate, the ideal artwork (e.g., original symbol) from which the images were derived.  The approximation of the original symbol then serves to train an imageclassifier thereby increasing the effectiveness of the classifier.  For example, the classifier can use the original symbol approximations as input to a degradation model to produce a set of degraded images useful in document classification.  Thus, the effectiveness of the classifier is enhanced through the reduction in the classification error rate.
Patent CA-2202672-A1 (CA)
Title: Sensing tilt-column steering shaft torque
Inventor: PADULA SANTO A
IPC: G01L5/22
Filed: 1997-04-14
Abstract: A torque transducer has a circumferentially sleeve press fitted on the user-tiltable portion of a vehicle steering shaft and disposed axially intermediate the shaft support bearings. A stationary pickup coil is mounted over the sleeve and located with respect to the sleeve by a second pair of bearings. In an alternate embodiment, two circumferentially magnetized, axially spaced sleeves are utilized.
Patent CA-2202892-A1 (CA)
Inventor: MOERCK RUDI
IPC: B27K3/34
Filed: 1995-09-29
Abstract: Un concentré agissant par pénétration contient une quantité efficace d'un biocide et utilise un véhicule de pénétration contenant un copolymère émulsifiable d'un diène cyclique, ainsi qu'un glycéride polymérisable insaturé. En ce qui concerne le biocide, tel que carbamate d'iodopropargyle, dont la dispersion nécessiterait sinon des quantités importantes de co-solvant, il est soluble directement dans le copolymère, ce qui permet d'éliminer, ou au moins de limiter sensiblement, le besoin de co-solvants, afin d'assurer la stabilité du biocide dans la formulation. Ce concentré présente également un niveau bas de produits organiques volatils.
Patent CA-2203159-A1 (CA)
Title: Apparatus and method of enhancing audio signals
Inventor: GARCIA ARTURO J
IPC: H04R3/00
Filed: 1994-10-27
Abstract: The present invention enhances an electronic audio signal by adding harmonics to the electronic audio signal. The present invention includes an input stage (12) and an output stage (22), with the input stage (12) having a field inducing coil (18) through which input electronic audio signals are to be transmitted to set up an electromagnetic field. The field inducing coil (18) is weakly coupled to an electromagnetic field receptor (26) such that when an input electronic audio signal is transmitted through the inducing coil (18); an induced electronic audio signal is produced having an enhanced harmonic content compared to that of the input electronic audio signal.
Patent CA-2203297-A1 (CA)
Title: Intelligent work surfaces
Inventor: SPEETER THOMAS H
IPC: G06F3/033
Filed: 1992-09-18
Abstract: Methods and apparatus for implementing intelligent work surfaces are provided. Work surfaces, such as desktops and floors, are covered with a tactilesensing array to provide tactile data to a processor. Regions on the sensing arrays may be defined to include predetermined sensing elements of the sensing array and may be specified to function as input devices, such as a keyboard, a mouse, or the like. The arrays can collect data at predetermined intervals for analysis, such as for identifying an individual or an object. For example, the force-imageof an individual's handprint or footprint could be taken, analyzed, and comparedagainst data representing the force-images of known individuals.
Patent CA-2204650-A1 (CA)
Title: Polymer dissolving method and apparatus
Inventor: TAMMELIN HEIKKI
IPC: B01F5/04
Filed: 1995-11-13
Abstract: The invention relates to a polymer dissolving method and apparatus, which method is entirely or partly based on a pressurized method, in which mixing is carried out in a dissolving head (3) by means of mechanical or static mixers (7, 11, 12). At the end of the process there are pressure chambers (9, 10) wherein pressure is maintained by means of a feed pump (8) and a valve (25). The process is entirely or partially pressurized.
Patent CA-2207933-A1 (CA)
Inventor: WEIK HARTMUT
IPC: H04Q3/00
Filed: 1997-05-29
Abstract: The invention relates to a method for establishing a connection, an exchange and a service computer for carrying out the method and a communications network for establishing connections according to the method. A requesting terminal (TEA) signals a call request (CALL) to a control unit of a first communication network (NET1). The control unit then determines if sufficient free capacity is available in the first communication network (NET1) for establishing the connection requested by the call request. If the capacity is insufficient, then the control unit initiates an alternate setup of the requested connection via a different second communication network (NET2) based on the parameters (PA) assigned to the requesting terminal (TEA).
Patent CA-2208322-A1 (CA)
Title: Directly compressible high load acetaminophen formulations
Inventor: HUNTER EDWARD A
IPC: A61K31/167
Filed: 1996-11-12
Abstract: Direct compressed solid pharmaceutical dosage forms containing: a) from about 40 to about 95 % by weight acetaminophen; b) from about 1 to about 60 % by weight of a direct compression vehicle comprising microcrystalline cellulose;  and c) from about 0.01 to about 4.0 % by weight of a pharmaceutically-acceptable lubricant are disclosed. The acetaminophen and direct compression vehicle are combined under high shear conditions which are sufficient to transform acetaminophen and direct compression vehicle into a homogenous granulate without degradation. In preferred aspects of the invention, the lubricant is also combined with the acetaminophen and direct compression vehicle under high shear conditions. Methods of preparing the directly compressed solid pharmaceutical dosage forms and methods of treatment with the dosage forms are also disclosed. The methods are particularly well suited for preparing directly compressed dosage forms containing high load (i.e., up to 80 % or greater) amounts of acetaminophen based on the weight of the total tablet.
Patent CA-2211703-A1 (CA)
Title: Test device for flat electronic assemblies
Inventor: SCHALLER PETER
IPC: G01R1/073
Filed: 1996-01-24
Abstract: The invention concerns a test device for electronic board assemblies, said device comprising at least one probe which can be positioned parallel to the surface within the total area of an assembly by drive devices. The test device is characterized in that the drive devices comprise a probe drive which, operating in all directions of movement independently of other probe drives, positions the probe on a sub-area of the total area.
Patent CA-2215938-A1 (CA)
Title: System for jointing panels
Inventor: WATSON WILLIAM BLACK
IPC: E04D3/366
Filed: 1996-03-22
Abstract: A system for jointing panels to form a sheet for the roofing or cladding of buildings. This system simultaneously provides a means for ventilating the building and prevents weather damage of the sheet. A joint is formed by the cooperation of a cap (9) which fits over adjacent panels (2, 3) and a clip (8) which holds the cap in place.
Patent CA-2217556-A1 (CA)
Title: Refuse compactor
Inventor: HOLTOM STEPHEN WAYNE
IPC: B30B9/30
Filed: 1996-04-04
Abstract: A refuse compactor (10) has a storage or compaction chamber (11), a lid (12) and a compaction blade (13). The compaction blade (13) is driven by cylinder (18) which may be attached to either the lid (12) or the chamber (11).
Patent CA-2218583-A1 (CA)
Inventor: FORSON HENRY
IPC: H04N5/445
Filed: 1997-02-18
Abstract: A method and apparatus for generating and navigating an on-screen program guide comprising current and future scheduling information for a plurality of different program sources. The method comprises the steps of entering a date and a time which defines a reference time for the on-screen program guide, and generating the on-screen program guide containing scheduling information for the plurality of different program sources including the user-entered reference time.
Patent CA-2218587-A1 (CA)
Title: Method of providing internet service
Inventor: HIGGINS STEVEN ROBERTSON
IPC: G06Q20/28
Filed: 1997-10-17
Abstract: A method of providing prepaid time-related access from a remote computer terminal, which is linked through a central server of an Internet Service Provider, to the Internet, provides such access only when an outstanding balance of time remains in the prepaid account of an authorized customer. The method may further provide for on-line replenishing of the prepaid account, using a transaction form which is accessed by the customer.
Patent CA-2221540-A1 (CA)
Title: A system for the enhancement of information based indicia and postage security devices
Inventor: SANSONE RONALD P
IPC: G07B17/00
Filed: 1997-11-19
Abstract: A system that supplies permanent and human and machine readable evidence that a approved printer was used to print the indicia affixed to a mailpiece. The system will first capture the postal customer's or mailers printer type and configuration setting information, paper, ink, or toner combination and then use the foregoing information to enable printing of the Information - Based Indicia, if the active printer going to print the indicia is found on a stored (local or remote) "Information - Based Indicia Approved Printer's List". Then the system will add this same printer information to the USPS defined Information - Based Indicia print field format so as to provide evidence that anapproved printer was used. The foregoing printer information may be printed in a coded form on the Information - Based Indicia to automate the sortation of indicium that can not be read.
Patent CA-2223012-A1 (CA)
Title: Pleated package having a reinforced central region with pre-expanded pleats
Inventor: BUCHBERG AKIVA
IPC: B65D65/12
Filed: 1996-05-31
Abstract: A package is made from a flexible rectangular sheet with a reinforced central region (2) which has pre-expanded pleats (1), while the side portions (4) have flat pleats (3) secured at the ends thereof. The device facilitates the expansion of the reinforced central region (2) and the subsequent formation of dihedral portions which increase the load resistance in the direction of the pleats. The reinforced central region (2) may further be provided with flutings extending parallel to the pleats.
Patent CA-2223454-A1 (CA)
Title: Molecular methods of hybrid seed production
Inventor: ALBANI DIEGO
IPC: A01H1/04
Filed: 1996-06-07
Abstract: A process is described for producing fertile hybrid seed or hybrid seed comprising fertile and sterile seed using male-sterile plants created by employing molecular techniques to manipulate genes that are capable of controlling the production of fertile pollen in plants. Hybrid seed production is simplified and improved by this approach, which can be extended to plant crop species for which commercially acceptable hybrid seed production methods have not been available.
Patent CA-2224250-A1 (CA)
Inventor: DETTLING JOSEPH C
IPC: B01J29/74
Filed: 1996-05-28
Abstract: A catalyst composition and structure containing the same and methods for treating diesel exhaust including a platinum group metal on a support in the presence of a catalyst activity controlling compound, a thermally stable ceria, and a non-catalytic pore-containing zeolite.