baber/WOPTO huggingface dataset:
Patent CA-2244893-A1 (CA)
Title: Surgical access device and method of constructing same
Inventor: BACICH STEVEN R
IPC: A61M25/00
Filed: 1997-02-13
Abstract: A surgical access device comprises an introduces (100) with a main endoscopic channel and an auxiliary or secondary instrument channel. The introduces exhibits an extremely narrow cross-sectional profile in order to minimize the size of the portal or other entry point necessary to gain access into the patient's body, thereby minimizing pain and discomfort to the patient and allowing a wide variety of endoscogic procedures to be performed on an out-patient basis. The narrow profile of the introduces is maintained upon introduction by a guide channel (118) which can be stored in a first position so as to closely conform to the profile of the introduces. The guide channel is provided with a set in order to maintain its stored position upon introduction; however, post introductively, the set in the guide channel can be readily realeased in order to deploy the guide channel and allow insertion of a secondary surgical instrument. The guide channel can be provided with rails or other tracks in order to ensure accurate movement at the instrument to the desired distal location. The guide channel is constructed from a thin but extremely strong and noncompliant membrane material. The present invention also comprises a method of construction and use of the surgical access device.
Patent CA-2245436-A1 (CA)
Title: A machine for installing a contact wire
Inventor: GRUBER LEOPOLD RUDOLF
IPC: B60M1/30
Filed: 1998-08-20
Abstract: A machine (1) for installing a contact wire (2) and/or a carrying cable (3) of an overhead line (4) of a track (5) includes a machine frame (6) supported on on-track undercarriages (7). Mounted on the machine frame are a wire drum (15) - containing rolled-up contact wire (2) or carrying cable (3) - and a guiding device (29) having a vertically adjustable guide roller (32), arranged on a supporting mast (31), for guiding the contact wire (2) or carrying cable (3) unwound from the wire drum (15). The guiding device (29) is pivotable about an axis (27), extending in the longitudinal direction of the machine, by means of a pivoting drive (30).      The guide roller (32) .is designed to be adjustable relative to the supporting mast (31) by means of a transverse adjustment drive (37,47) in a direction extending perpendicularly to the longitudinal direction of the supporting mast (31) and transversely to the longitudinal axis of the machine.
Patent CA-2246209-A1 (CA)
Inventor: LECLERC BRUNO
IPC: A01K5/02
Filed: 1998-08-31
Abstract: An animal feeder is comprised of a feed hopper for the containment of animal feed and having feed discharge drums located in a lower section of the hopper. The drums are provided with feed transport cavities to transport feed from the hopper to a feed trough disposed below the hopper.      The drum is maintained at a predetermined inoperative position by means of a weighted bar element which is actuated by an animal to displace the drum and transfer feed from the hopper to the feed trough. A feed arresting bar is horizontally secured at a predetermined location in each feed transport cavity to obstruct free flow of feed when the drum is in motion to a discharge position.
Patent CA-2250548-A1 (CA)
Inventor: DITOMMASO ANTONIO
IPC: A47K3/12
Filed: 1998-10-27
Abstract: A collapsible transfer bench includes a frame moveable between an extended position and a collapsed position, said frame including at least one channel; and a seat adapted to receive and support a person, said seat cooperatively and moveably engaging said channel such that in said extended position said seat moves longitudinally along said channel and in said collapsed position said frame is portable enough for one person to transport said frame from one location to the other. Furthermore said seat being moveable between an extended position and a collapsed position, such that in said collapsed position said frame together with said seat is portable enough to be transportable by one person from one location to another.
Patent CA-2251829-A1 (CA)
Inventor: SCHMIDT HARALD
IPC: D21H19/28
Filed: 1997-04-07
Abstract: The invention pertains to a compostable waterproof coating, a process for producing it and its use for coating objects.
Patent CA-2252148-A1 (CA)
Inventor: ELLERY JOHN M
IPC: D21B1/14
Filed: 1998-10-28
Abstract: A control system for a repulping apparatus having a vat containing a pulp and water slurry and a rotatable blade for mixing the pulp and water to form the slurry. A feed apparatus moves the pulp into the vat and a feed indicator senses the entry of the pulp into the vat and produces an entry signal indicative of the pulp entering the vat. A controller responsive to the pulp entry signal calculates the volume of water to be added to the vat and the water flow rate to provide a predetermined consistency in the slurry and produces a signal representative of the calculated volume of water. A water volume control receives and is responsive to the calculated water volume signal to control the admitting of water into the vat. The controller also produces a signal representative of the calculated rate of flow. A flow control is responsive to the calculated water volume signal and to the calculated rate of flow signal to admit water into the vat at the calculated rate of flow. The slurry mixed in the vat is discharged to a dump chest and a dump chest level sensor monitors the level of the slurry in the dump chest. The dump chest level sensor produces a signal to the feed apparatus to increase or decrease the rate of pulp delivery into the vat depending on the level of the slurry in the dump chest.
Patent CA-2252597-A1 (CA)
Title: Non-thrombogenic and anti-thrombogenic polymers
Inventor: SANDHU SHIVPAL SINGH
IPC: C08F220/28
Filed: 1997-04-30
Abstract: Polymers having non-thrombogenic properties can be prepared by copolymerising monomers of at least three classes selected from (a) monomers having sulphate groups, (b) monomers having sulphonate groups, (c) monomers having sulphamate groups, and (d) monomers having polyoxyalkylene ether groups, (e) monomers having zwitterionic groups.  The monomers can additionally be provided with anti-thrombogenic properties by including an additional comonomer having a pendant heparin (or hirudin, warfarin or hyaluronic acid) group. The polymers can be used as coating materials for medical devices, such as tubing or connectors, in order to provide them with non-thrombogenic, and optionally anti-thrombogenic, properties.
Patent CA-2258811-A1 (CA)
Title: Formulation for use in the prevention of pathogen induced diseases including hiv and hsv
Inventor: BERGERON MICHEL G
IPC: A61K31/765
Filed: 1997-05-09
Abstract: This invention relates to formulations comprising film-forming components capable of forming per se a physical barrier to pathogens. Thermoreversible gels such as poloxamers are particularly preferred for that use. The film-forming formulations may further comprise microbicides, spermicides or any other drug, which choice is guided by the pathogen, organism or the disease to be inactivated or treated. The formulations are therefore efficient as a physical, and optionally, as a chemical or pharmacological barrier as well as usable as a sustained drug-release system at the locus of administration. A  part of the drug may also be entrapped in liposomes or other drug carriers.  These formulations are intended for use in the prevention of sexually transmitted diseases, as well as in the treatment of infections, cancer, inflammation or any disease or state which requires a pharmacological treatment. Formulations are applicable to mucosae, skin and eye, for example.
Patent CA-2259162-A1 (CA)
Inventor: RAUH ULRICH
IPC: C07C57/04
Filed: 1997-06-19
Abstract: In a method for removing low, medium and high-boiling by-products obtained when producing acrylic acids or methacrylic acids, the gaseous low-boiling by-products are burned, whereby low and medium-boiling by-products hat have been dissolved in water, if desired together with high-boiling by-products that have been treated with the dissolvent, are taken to the burning stage.
Patent CA-2260545-A1 (CA)
Inventor: COLEMAN KENNETH J
IPC: A45D29/02
Filed: 1999-01-28
Abstract: An adjustable magnifying attachment for a hand held implement is provided. The adjustable magnifying attachment includes a support base, an extension arm, a lens holder, and a magnifying lens. The support base has a hole and a slot, which is configured to receive a portion of the hand held implement and to secure the support base on the hand held implement. The extension arm has a first end section and a second end section.      The first end section of the extension arm is snugly mounted in the hole in the base but may still rotate and slide in the hole in the support base. The second end section of the extension arm terminates in a clip. The lens holder retains the magnifying lens and includes a mounting bracket with a pivot rod that joins a pair of opposed bracket arms at a position spaced apart from the lens holder. The pivot rod is secured in the clip of the extension arm so that the lens holder may pivot about the pivot rod. The magnifying attachment has a wide range of adjustability even after the magnifying attachment is mounted on a hand held implement. This allows the user to position the magnifying lens near the object being worked on so that best viewing angle and distance can be attained.
Patent CA-2261874-A1 (CA)
Title: Container with removable eyeglasses
Inventor: WILKINSON ROGER DALE
IPC: B65D81/36
Filed: 1999-02-12
Abstract: A foldable flat sheet includes eyeglasses formed therein and which may be folded to construct a container, such as a rectangular-shaped sleeve. The foldable flat sheet is constructed with fold lines, the point where the temple bars of the eyeglasses join the eye aperture portion being positioned at these fold lines to allow the eyeglasses to be easily fitted to the wearer's face upon removal from the container. The eyeglasses may be constructed to allow 3-dimensional viewing therethrough.
Patent CA-2263156-A1 (CA)
Title: Endoscope video
Inventor: HORI KOICHIRO
IPC: A61B1/05
Filed: 1997-09-16
Abstract: L'invention porte sur un endoscope comportant une microcaméra vidéo (20), un câble flexible (40) fixé à la caméra fait de fibres optiques (34) et transmettant de la lumière pour illuminer le site vu par la caméra, des conducteurs électriques transmettant les signaux électroniques produits par la caméra en réponse aux images vues par la caméra et une tige malléable ou rigide (64) réversiblement connecté à la caméra et la portant. La tige rigide peut être droite ou préformée selon une configuration curviligne. Dans une variante, la tige malléable est fixée en permanence à la caméra.
Patent CA-2263333-A1 (CA)
Title: Improved plasma jet system
Inventor: SHEPARD C B JR
IPC: C23C16/455
Filed: 1997-09-26
Abstract: A plasma jet CVD system (100) includes gas injectors (122a-122h) and a stand-off ring (126). The gas injectors have outlet holes (236a-h) preferably flared to approach the expansion angle of the injected jet, thereby keeping the holes substantially free from entrained atomic hydrogen. The injectors are arranged counter-rotational to the swirl of the primary jet, providing a more uniform mixture of hydrocarbons and atomic hydrogen. The stand-off ring provides vents (152a-152d) for cooler gases to enter the nozzle (128), thereby decreasing the overall temperature of the injectors and decreasing the temperature gradient experienced by the injectors, thereby preventing injector cracking. In addition the vents reduce shear, thereby increasing jet velocity and increasing the deposition rate for the coating. In addition, a new method of injector design permits optimal mixing characteristics to be obtained across various recipes whereby the ratio of the mass flux of the primary flow of the jet to the mass flux of the injected flow from the downstream injectors is kept constant.
Patent CA-2265734-A1 (CA)
Inventor: DESLER TORBEN
IPC: A61K8/41
Filed: 1997-10-08
Abstract: L'invention concerne des substrats de la formule générale (I), lesquels produisent une couleur lors de leur oxydation. L'invention concerne également l'utilisation de ces substrats dans la teinture, par exemple de fibres kératiniques, notamment les cheveux, et dans la teinture de textiles. Elle concerne encore une composition de teinture, ainsi qu'un procédé de teinture de fibres kératiniques.
Patent CA-2270815-A1 (CA)
Title: Bandsaw failure preventer
Inventor: KOECHER WOLFGANG
IPC: B23D55/08
Filed: 1999-05-07
Abstract: A bandsaw failure preventing device preventing the derailments of an endless blade bandsaw. Comprising a wheel affixed to a mounting bracket for placement in front of the cutting edge of a bandsaw blade. The rotating wheel innovation enables the device to perform its function without damage by the cutting edge of the sawblade itself. The device is to be installed onto such an existing prior art band saw and prevents the sawblade from exiting its existing guide assembly and leaving the determined path through the bandsaw transport system.
Patent CA-2271739-A1 (CA)
Title: Reactant flow arrangement of a power system of several internal reforming fuel cell stacks
Inventor: DEKKER NICOLAAS JACOBUS JOSEPH
IPC: H01M8/04
Filed: 1997-11-13
Abstract: An arrangement is proposed for a system with at least two molten carbonate or solid oxide fuel cell stacks (1, 2, 3). The cathode flows (14) of these stacks are connected in series while the anode flows (25) are in parallel. All stacks have an internal reforming device for a hydrocarbon fuel. Anode gas is recycled (24) from the stack outlets to the inlets. The invention allows the stacks to be of the same design and this reduces manufacturing costs. The cathode streams between the stacks are cooled by, for example, adding streams of cool air (15) to them. The cathode inlet temperatures can, therefore, be controlled by relatively inexpensive low temperature air valves. The invention allows the system to be designed with few heat exchangers, if any. The per pass utilisation of all the oxidant streams and fuel streams are low. The efficiency of the system is typically 4-5 percentage points higher than that of equivalent conventional systems.
Patent CA-2277114-A1 (CA)
Title: Integrated door check hinge for automobiles
Inventor: JESSE GERHART
IPC: B60J5/04
Filed: 1999-07-07
Abstract: A door checking apparatus for an automobile comprising an array of needle bearings held in contact with a bearing surface comprising axially oriented grooves, by means of a resilient energy storage device; a cylindrical cage coaxially adjacent the bearing surface and comprising an axially oriented array of slots arranged to retain the needle bearings; means to impart rotary motion to the cylindrical cage to cause the needle bearings to move relative to the bearing surface to create a torque reaction in response to deflection of the resilient energy storage device as the needle bearings move into and out of the grooves; means to transmit the imparted torque from the bearing surface into an appropriate structure.
Patent CA-2277784-A1 (CA)
Title: Intermediate for the production of lignin polymers and their use in the production of reagents for the production of composite materials from plant fibers, waterproof papers and cardboards as well as duroplastics from lignin derivatives
Inventor: FASTENRATH MERLE
IPC: C08H8/00
Filed: 1998-01-14
Abstract: The invention relates to an intermediate for the production of polymers from lignin derivatives from the pulp industry, produced by processing lignin derivatives with phenol oxidizing enzymes in the presence of oxidation agents.  The invention is characterized in that the lignin derivatives a) are subjected to enzyme treatment for more than 3 hours in the presence of air, or b) are subjected to enzyme treatment for more than 10 minutes while air or oxygen is passed through them, or c) are oxidized by treatment with chemical oxidation agents. The intermediate is used for the production of polymers of lignin derivatives from the pulp industry, of fiber reinforced duroplastic composite materials from plant fibers, of waterproof papers and cardboards, as well as duroplastics from lignin derivatives.
Patent CA-2280076-A1 (CA)
Title: Engine balance shafts supporting structure
Inventor: IWATA KAZUYUKI
IPC: F02B75/20
Filed: 1999-08-11
Abstract: A casing accommodating therein a pair of balance shafts below the cylinder block comprises an upper casing and a lower casing that can vertically be split, and an oil pump body is molded integrally with one of the upper and lower casings. In addition, one end of each of the two casings is inserted into the oil pump body for support therein, and the two balance shafts are each supported on a bearing provided between the two casings in such a manner as to be split into two halves at an intermediate portion or the other end thereof . With this construction, the oil pump body can be molded together with the casing, thereby making it possible to reduce the number of components used and man hours for assembling. In addition, since the bearings can be split into two halves, when compared with other portions of the balance shafts, the journal portion can be thinned, thereby making it possible not only to reduce the sliding friction but also to make the casing smaller in size and lighter in weight.      More over, the degree of freedom of designing balance shafts can also be improved. With the balance shaft supporting structure for an engine the durability of a balancer, as well as the degree of freedom of designing the same are improvided without making the engine larger in size and increasing the number of components used.
Patent CA-2281532-A1 (CA)
Title: Dispositif integre de filtration de liquides par gravite, concu pour filtrer le sang et les derives sanguins
Inventor: ZUK PETER JR
IPC: B01D35/02
Filed: 1998-02-17
Abstract: Cette invention se rapporte à un dispositif intégré de filtration de fluides biologiques du type sang et dérivés sanguins. Ledit dispositif comporte une série de canaux (20, 21, 22) formés en aval d'éléments de filtration (3, 4, 5, 6). Ces canaux (20, 21, 22) sont définis en section transversale par la distance entre les éléments de filtration (3, 4, 5, 6) et leurs fonds. Ils sont conçus pour constituer des voies d'écoulement vers un orifice de sortie (91) de sorte que l'air à l'intérieur desdits canaux (20, 21, 22) est poussé en aval à travers l'orifice de sortie (91), ce qui minimise la quantité d'air piégé en aval du dispositif. Afin d'optimiser les performances du dispositif, l'aire de la section transversale d'un seul canal continu (21), ou la somme des aires des sections transversales de canaux parallèles (22), menant à un orifice de sortie unique (91), ne doit pas être supérieure à l'aire de la section transversale dudit orifice de sortie (91).
Patent CA-2282621-A1 (CA)
Title: A surgical set of instruments
Inventor: ROTH KLAUS
IPC: A61B17/34
Filed: 1998-02-20
Abstract: The invention concerns a set of surgical instruments for operating on cartilage, bone or body tissue areas, said set of surgical instruments comprising a surgical instrument (1) and a device (2) for guiding this instrument and/or a tissue applicator (3) for introducing tissue at a defect to be covered. According to the invention, the surgical instrument which can be guided in a circular or elliptical manner, or even in other manners, by means of the claimed guide device (2) takes the form of a shaver, scalpel, drill, curette, syringe or also a probe. Depending on the surgical context, however, other instruments for cutting, milling, stamping, sewing or drilling bores in cartilage, bone or body tissue or injecting operative auxiliary substances such as, for example, adhesive, can be guided by the claimed guide device in a specific areal shape.
Patent CA-2285566-A1 (CA)
Title: Portable crusher
Inventor: GERVAIS JOSEPH LUCIEN FERNAND
IPC: E01C19/05
Filed: 1998-04-09
Abstract: A portable rock crusher (10) is adapted for attachment to a boom (16) of an earthmoving vehicle (14). The crusher has a hopper (32) with a material inlet (49) and a material outlet (44) spaced from the inlet. A pair of jaws (46, 48) is located within the hopper and positioned between the inlet and outlet. The jaws are movable relative to one another to vary the spacing therebetween and an actuator (68) is provided to control relative movement between the jaws. Material moving from the inlet to the outlet thereby passes between the jaws and is crushed upon relative movement of the jaws to provide an aggregate at the outlet.
Patent CA-2285967-A1 (CA)
Title: Surgical site preparation composition for a skin surface
Inventor: HOANG MINH Q
IPC: A61L26/00
Filed: 1998-03-31
Abstract: An antimicrobial film forming surgical site preparation composition includes a film forming material and an antimicrobial agent soluble in a fugitive solvent. The composition when applied to the skin surface forms a substantially water insoluble, substantially tack-free flexible film adherent to the skin surface. The film is capable of releasably retaining the antimicrobial agent to substantially inhibit microbial growth on the skin surface. The film releases sufficient antimicrobial agent to substantially eliminate the microorganisms normally present on the skin surface to prepare the surface for the procedure and continues to release the antimicrobial agent during the procedure and subsequent wound healing. The composition can be easily washed from fabric and does not stain the fabric even where the fabric is treated with chlorine bleach. In addition, a smooth continuous film is formed without the use of a separate plasticizer.
Patent CA-2287377-A1 (CA)
Title: Optical fiber polarization scrambler and operating parameter input method therefor
Inventor: KIM BYOUNG YOON
IPC: G02B27/28
Filed: 1998-07-14
Abstract: An optical fiber polarization scrambler decreasing the degree of polarization (DOP) of light efficiently using at least two optical fiber birefringence modulators (10, 11) and an operating parameter input method for the same.  Birefringence modulators are constructed with hollow cylindrical piezo devices (10, 11) and a strand of optical fiber (30) wound continuously on the outer walls of the piezo devices (10, 11). An angle between the birefringence modulators consisting of the optical fiber polarization scrambler is configured to compensate the effect of circular birefringence. A method for exactly configuring birefringence modulation frequency and birefringence modulation amplitude to achieve effective polarization scrambling for the optical fiber polarization scrambler is also provided.
Patent CA-2288619-A1 (CA)
Title: Temperature and flow measuring apparatus
Inventor: BENDER HELMUTH
IPC: G01F1/28
Filed: 1999-03-09
Abstract: The present invention relates to a device for producing one or plural branches off a medium-containing pipe (10), comprising a two-part unit (20), intended to be clamped on said pipe (10), consisting of a lower part (22) and an upper part (24), wherein for each branch, two opposing apertures (16, 18) are provided in said pipe (10) transverse to the pipe axis, with said lower part (22) exhibiting a through passage (30) for the fluid medium which tightly fits on said lower aperture (18), said upper part (24) exhibiting a valve insert fitting in said upper aperture (16), both said parts (22, 24) being clamped firmly on said pipe (10), with a flowmeter (26) for the fluid medium as well as a temperature measuring device (28) being provided in said upper part (24).
Patent CA-2288758-A1 (CA)
Title: Optical scanner and image reader for reading images and decoding optical information including one and two dimensional symbologies at variable depth of field
Inventor: ROUSTAEI ALEXANDER R
IPC: G06K7/10
Filed: 1998-05-05
Abstract: An integrated system and method for reading image data. An optical scanner/image reader (15) is provided for reading images and decoding optical information or code, including one (28) and two dimensional (27) symbologies at variable depth of field, including memory (212) and image processing (210) for high speed applications.