baber/WOPTO huggingface dataset:
Patent CA-2250763-A1 (CA)
Title: Olefin solution polymerization
Inventor: COMBS R BRUCE
IPC: C08F2/04
Filed: 1997-04-01
Abstract: A solution polymerization system for polymerizing an olefin monomer by reacting the monomer with catalyst and solvent has been invented. The system in one aspect includes a flow loop with a product polymer outlet, the flow loop forming a recycling reactor, a cataylst inlet on the flow loop through which catalyst and solvent flow into the flow loop, a monomer inlet on the flow loop through which monomer and solvent flow into the flow loop and, with the catalyst, form a reactant material stream, a first heat exchanger on the flow loop for receiving the reactant materials stream and any formed polymer and for removing heat of reaction or polymerization from the flow loop, and pump apparatus for pumping the reactant materials stream and formed polymer in the flow loop and from the first heat exchanger to the product polymer outlet. In one aspect, the system includes at least one additional heat exchanger on the flow loop for receiving the reactant materials stream and formed polymer and for removing heat of reaction or polymerization from the flow loop, the pump apparatus pumping formed polymer and remaining reactant materials to the product polymer outlet, and a portion of the formed polymer and remaining reactant materials flowing out from the product polymer outlet and the remainder recycling through the flow loop. In one aspect systems and methods according to the present invention are used to make polyethylene.
Patent CA-2253207-A1 (CA)
Title: Growth inhibition and eradication of solid tumors using neuroendocrine resetting therapy and photodynamic therapy
Inventor: CINCOTTA ANTHONY H
IPC: A61K41/00
Filed: 1997-04-15
Abstract: A method of ablating the growth of or eradicating tumors in mammals having prolactin, growth hormone, and melatonin daily rhythms by adjusting one or more of the prolactin, growth hormone, and melatonin profiles of the mammal to conform to or approach the corresponding normal profile for healthy members of the same species and sex as said mammal, contacting the cells of the tumor with a photoactive photosensitizer, and, exposing the photosensitizer-contact tumor cells to light of a predetermined wavelength, power density, and energy level.
Patent CA-2255434-A1 (CA)
Title: Morphology control in polypropylene graft copolymers
Inventor: BIGIAVI DANIELE
IPC: C08F6/02
Filed: 1998-12-08
Abstract: A graft copolymer comprising a backbone of a propylene polymer material having a vinyl monomer graft polymerized thereto is produced by (1) treating a propylene polymer material with a free radical polymerization initiator, (2) treating the propylene polymer material with at least one grafting monomer capable of being polymerized by free radicals, in the presence of a polymerization rate modifier, and (3) removing any unreacted grafting monomer from the graft copolymerized propylene polymer material, decomposing any unreacted initiator, and deactivating any residual free radicals in the material. Use of the polymerization rate modifier increases the polymerization induction time on the polymer surface, consequently facilitating monomer diffusion into the interior of the polymer particles so that surface polymerization of the monomer is inhibited.
Patent CA-2256808-A1 (CA)
Inventor: WHITE JAMIE
IPC: B29C65/06
Filed: 1998-12-18
Abstract: A blow molded product which is generally tubular having a first and second open ends, a bellows section intermediate said first and second ends so that the product is flexible, and a skirt adjacent the second end, the skirt having an outer cylindrical outer surface and a lobed inner surface. The bellows section is formed in a blow molding operation and the skirt is formed by injection molding. The final product is formed by thermally fusing the two portions together. This process enables molding of a product with an external surface which may substantially cylindrical with an internal surface which has lobes, or other internal projections or non-cylindrical surface.
Patent CA-2259289-A1 (CA)
Title: Improved infusion apparatus
Inventor: STRUZER ROMAN
IPC: A61M5/14
Filed: 1997-06-30
Abstract: A multi-drug intravenous infusion apparatus which comprises a plurality of vials containing drugs to be provided to a patient; a fluid container containing a fluid to be mixed with said drugs; conduit means for leading drugs from said vials, mixed with fluid from said container, to means for introducing the drugs with said fluid into the patient's body, said conduit means comprising: a main section, a plurality of individual sections, each comprising at least a collapsible portion, connected to said vials and to said main section, a terminal section connected to said main section and to means for introducing the drugs with said fluid into the patient's body, and a fluid section leading fluid from said fluid container to said terminal section; a switching unit comprising a plurality of switches, each one associated with one of said individual sections, wherein each switch is capable of either blocking the drug flow in the associated section by exerting pressure whereby to collapse the collapsible portion thereof or allowing said flow by releasing said collapsible portion; and programmable control means for managing and regulating the operation of the apparatus.
Patent CA-2261337-A1 (CA)
Inventor: GILLESPIE JAY DARRELL
IPC: A61F13/15
Filed: 1997-07-22
Abstract: Multicomponent thermoplastic continuous filaments are provided, including hollow core multicomponent filaments. The filaments are at least partially splittable into smaller filaments in the absence of mechanical treatment or application of high pressure water jets. The surface energy of the components can be controlled to control separation of the multicomponent filaments. Sub-denier and micro-denier filaments of low orientation can be produced from relatively high molecular weight polymers to produce nonwovens of surprising strength, barrier, and cover.
Patent CA-2261376-A1 (CA)
Title: Means and apparatus for acquiring, processing, and combining multiple exposures of the same scene or objects to different illuminations
Inventor: MANN STEVE
IPC: H04N5/232
Filed: 1999-02-01
Abstract: A novel means and apparatus for a new kind of photography is described. In particular, multiple exposures of the same scene or object are acquired by a camera at a fixed location, while at the same time, one or more photoborgs (photographic cyborgs, photographers, lighting technicians, artists, or engineers) taking the picture may freely roam about the scene and differently illuminate various objects in the space visible to the fixed camera. A photoborg typically carries one or more portable light sources, typically interfaced to a wearable computer system, which is connected (wirelessly or otherwise) to a base station computer within or connected to the fixed camera. In this way, a photoborg can control the remote camera which gathers multiple exposures, in a manner analogous to how an artist applies layers of paint to a canvas. Typically a photoborg's wearable computer contains a display (viewfinder which shows the state of the image, updating the display with each new exposure. An interface (typically taking the form of a chording keyboard built into the handle of a flashlamp, or the like ) allows a photoborg to erase any desired exposure, or to change the intensity or color of any of the exposures and interactively see the effect, as it appears from the perspective of the fixed camera. Because of a, photoborg's ability to constantly see the small incremental effects of the light sources, the apparatus behaves as a true extension of the photoborg's mind and body.
Patent CA-2265135-A1 (CA)
Title: Insulated concrete wall
Inventor: WESTRA GREGGORY A
IPC: E04B2/84
Filed: 1999-03-10
Abstract: The present invention relates to poured concerete walls and, more particularly, to poured concrete walls including a layer of thermal insulation for reducing heat transfer in which the insulation layer is secured to the concrete wall at the time of pouring the concrete.
Patent CA-2265138-A1 (CA)
Title: Strainer assembly for bathtub drains and the like
Inventor: BALL WILLIAM T
IPC: E03C1/22
Filed: 1999-03-10
Abstract: A strainer assembly (28) for bathtub drains has a strainer body with a circular horizontal flange (30) having a center opening (32) and which is adapted to fit over and around a vertically disposed drain port (50) in the bottom of a tub or the like. A hollow bushing extension (34) extends downwardly from the center opening (32) and terminates in an open lower portion (36) with external threads. A hollow attachment bushing (40) having a center opening (42) is threadably secured around the lower portion of the bushing extension (44) and extends downwardly therefrom. The attachment bushing (40) has a lower open end (44) with at least one crossbar (46) extending thereacross. A bearing hub (48) is formed in the center of the crossbar on the center axis of the aforesaid center openings. A vertically disposed threaded aperture (50) is located in the hub (48) and is adapted to threadably receive a connecting stud (54) from a drain strainer or closure valve.
Patent CA-2266851-A1 (CA)
Inventor: SHAALTIEL YOSEPH
IPC: C12M3/02
Filed: 1997-09-26
Abstract: A disposable device and method for axenically culturing and harvesting cells and/or tissue in consecutive cycles. The device consists of a sterilisable transparent and/or translucent disposable container which may be at least partially filled with a suitable sterile biological cell and/or tissue culture medium and/or axenic inoculant and/or sterile air and/or required other sterile additives.  The container has means for removing excess air and/or waste gases therefrom, and means for introducing the inoculant and/or culture medium and/or additives therein. The device is characterised by having a reusable harvesting means for enabling harvesting of at least a portion of the medium containing cells and/or tissue when desired, thereby enabling the device to be used continuously for at least one subsequent consecutive culturing/harvesting cycle. The portion of medium containing cells and/or tissue remaining from a previously harvested cycle may serve as inoculant for a next culture and harvest cycle, culture medium and/or additives being provided. The device may thus be used continuously in consecutive cycles, and may be disposed of when it becomes contaminated.  In a second aspect of the invention, a battery of these devices, suitably interconnected, enables the scale of production of cells/tissues to be adjusted when required.
Patent CA-2267031-A1 (CA)
Inventor: WU CHIN-TSAI
IPC: B65B21/24
Filed: 1999-03-26
Abstract: This invention is proposed to provide a vertical shrink-packing machine mainly comprising a machine bed, a shrinkable film conveyor, a guide-forwarding device, a transmission mechanism, plural knife sets and a bottle conveyor. The construction of above components or mechanism is capable of rapid adjusting the guide-forwarding device and the knife sets to fit work article C in different shape or dimensions, and in virtue of the bottle conveyor, a shrinkable film pack A can clothe onto the work article C flat and tidily for achieving the goal of rapid production, easy operation, and excellent quality.
Patent CA-2267988-A1 (CA)
Title: Dynamic real time exercise video apparatus and method
Inventor: EWERT BRUCE
IPC: A63B24/00
Filed: 1997-10-03
Abstract: A system, apparatus and method for interactively controlling the rate of realtime video playback and audio track playback is disclosed. A preferred embodiment of the apparatus is an interactive exercise video system (10) which utilizes a bicycle (14), a bicycle wheel speed detector (22), an interface unit (32) connected to the wheel speed detector (22) and to a conventional game controller connected to a conventional video game CD player (20), which is in turn connected to a TV (18). A prerecorded video CD is played in the player in which the display rate of video images is altered via software embedded on the CD such that the speed of the video is changed by the level of activity on the exercise device. The variation of the video frame rate is accomplished by modifying the duration time stamp on each video frame which is used by the player control program so as to change the sequential time at which each frame is called for display by the conventional video player. The variation of video display rate is independent of the pitch of the audio play rate. To maintain synchronization of the audio with the video without changing the pitch of the audio, portions of the audio are looped back, i.e. replayed.
Patent CA-2271961-A1 (CA)
Title: Method for improved reproduction of digital signals
Inventor: JENKINS MICHAEL A
IPC: G11B20/18
Filed: 1997-11-14
Abstract: The present invention provides a method for digital signal processing, referred to as sample-estimate-hold signal reconstruction, which provides a method of reconstructing output signals more representative of the original input analog signal than the conventional signal processing procedures used in D/A conversion, referred to as sample-hold signal reconstruction. The method uses the history of the analog signal being reconstructed from its digitized form to produce output values which reduce the absolute difference between the integral of the actual signal and the integral of its digital representation over local intervals in the range of the signal. The method is applicable to a wide range of signal processing applications including force-reflection systems, audio and data compression to mention just a few.
Patent CA-2274771-A1 (CA)
Title: Nonwoven process and apparatus
Inventor: MARMON SAMUEL EDWARD
IPC: D04H3/16
Filed: 1997-12-19
Abstract: Improved equipment and method for spinning filaments for nonwovens using an integral spinbank including one or more spinplates producing filament bundles separated by one or more central conduits for quench air. Embodiments include high velocity quench air driven into the central conduit or quench air blown or drawn in from outside the filaments into the central conduit. Means may also be provided for removal of undesired waxes and/or other condensates through a central exhaust removal using the central conduit. As quench air velocity is increased through the central conduit, the streams tend to improve total quench flow by deflecting opposing flows into a uniform stream. Other variations include division of quench air into flow zones that may be independently controlled and varying the angle of quench air flow and/or the spinplates to maintain separation distance between quench air and filament bundles.
Patent CA-2279826-A1 (CA)
Inventor: ACRES STEPHEN D
IPC: A61K48/00
Filed: 1998-02-04
Abstract: Cette invention se rapporte à un procédé permettant de réaliser l'immunoneutralisation de molécules endogènes chez des sujets mammifères, procédé dans lequel un immunogène est administré par injection dans l'oreille. Ce procédé est utilisé pour déclencher une réponse immunitaire efficace et uniforme, suffisante pour bloquer ou supprimer l'activité d'une hormone endogène chez un sujet vacciné ou pour cibler une cellule malade en vue d'une réponse immunitaire.
Patent CA-2280717-A1 (CA)
Inventor: CAPOTOSTI ROMEO
IPC: B22D41/50
Filed: 1998-02-13
Abstract: The present invention provides a feeder of molten metal for moulds of continuous casting machines comprising a cylindrical body (1) within which a main outflow duct (5) of the molten metal coming from the tundish is formed to which the cylindrical body (1) is connected by means of a frustoconical joint (2), formed integrally with the cylindrical body (1) at the upper end thereof, characterized in that the free end (3) of the cylindrical body (1) is of substantially frustopyramid shape and has a plurality of outlets (7, 8, 9, 10, 11) communicating with the main outflow duct (5).
Patent CA-2282198-A1 (CA)
Title: Adaptive load-clamping system
Inventor: JORDAN DEAN CLARK
IPC: B66F9/18
Filed: 1999-09-13
Abstract: A fluid power load-clamping system has a clamp actuated by fluid pressure regulated by at least one fluid valve. The valve may increase a maximum fluid pressure automatically in response to a weight of a load.      A controller causes the valve to permit a relatively high maximum fluid pressure as the clamp closes toward the load to enable high initial clamp closure speed.      Thereafter the valve automatically reduces the maximum pressure as clamping surfaces close into a pre-determined relationship with the load, and then increases the maximum pressure to regulate the gripping force.      Gripping pressure may be regulated continuously while the load is supported by the clamp. A weight measurement system may compensate for a position of the lifting mechanism.
Patent CA-2282528-A1 (CA)
Title: Metal poreux et son procede de preparation
Inventor: ATTARD GEORGE SIMON
IPC: B22F1/06
Filed: 1998-02-25
Abstract: L'invention concerne un procédé de préparation d'un métal poreux consistant à réduire un mélange contenant (I) une source de métal; (II) un solvant tel que de l'eau; (III) un agent permettant la formation de la structure, tel que de l'éther d'octaéthylène glycol monododécyle, en vue de former une phase cristalline liquide dans le mélange. La réduction du mélange contenant une phase cristalline liquide, qui utilise, par exemple, du métal zinc comme agent réducteur, entraîne la formation d'un film poreux présentant une structure sensiblement régulière et une dimension des pores sensiblement uniforme.
Patent CA-2286640-A1 (CA)
Inventor: EIFRIG ROBERT O
IPC: H04N7/50
Filed: 1999-10-18
Abstract: A rate control system suitable for use with a digital video transcoder, such as one conforming to the MPEG standard. The proposed rate control system starts coding with any reasonable set of assumed Group of Pictures (GOP) parameters, thereby avoiding a processing delay of about one GOP which would otherwise be incurred to extract the complete GOP structure information from a pre-compressed bit stream. In addition, the system avoids the need to store the data corresponding to the GOP, thereby reducing the memory required for transcoding. Encoding of a first picture in a sequence or GOP begins without a priori knowledge of the picture type of subsequent pictures. A reasonable set of GOP parameters is assumed to determine an encoding bit budget. The bit budget is gradually corrected as successive pictures are coded according to their picture types. Changes in the GOP structure of pre-compressed bitstreams can be addressed, for example, when switching channels, inserting commercials, and the like. Target rates with incorrect starting GOP parameters will converge within a few GOPs.
Patent CA-2287927-A1 (CA)
Inventor: DATIG WILLIAM E
IPC: G06N3/00
Filed: 1998-04-27
Abstract: Une machine épistémologique universelle (M.U.) permet de créer des formes de vie synthétiques arbitraires (c'est-à-dire des machines pensantes) connues sous le nom d'androïdes qui connaissent et perçoivent le monde comme le font les être humains. La M.U. intègre des transformations d'un univers existentiel étendu d'êtres humains et comprend des moyens permettant de transformer, représenter, intégrer, traduire et réaliser une pluralité de formes universelles. Ces formes universelles comprennent des objets universels se présentant sous forme de représentations physiques de structures de connaissances universelles. La M.U. comprend une pluralité d'instances épistémiques comprenant ces objets universels et les transformation universelles de ces objets universels, exprimées dans une grammaire universelle qui permet à toute la connaissance humaine d'être un support d'intégration pour la M.U.
Patent CA-2290647-A1 (CA)
Title: Method and device for connecting two millimetric elements
Inventor: DADEN JEAN-YVES
IPC: H01P1/04
Filed: 1998-05-15
Abstract: The invention concerns a method and a device for connecting two millimetric elements. The method consists in producing in predetermined sites of each of the millimetric elements (13, 16) connecting zones (8) linked to a ground plane potential; then in carrying out the connection by predetermined links (17) between the connection zones (8) and between the conducting lines (6, 15) of the two millimetric elements (13, 16). The device consists in a coplanar line (17). The invention is particularly applicable to millimetric circuits using micro-strip conducting lines.
Patent CA-2291165-A1 (CA)
Inventor: MCCARTHY KEVIN R
IPC: B28B3/20
Filed: 1998-07-23
Abstract: L'invention porte sur des mélanges de poudre et sur un procédé de production et de façonnage de ces mélanges. Ce procédé consiste à mélanger les composants des matériaux en poudre, un liant, un solvant pour le liant, un tensioactif et un non solvant vis à vis d'au moins un liant, le solvant et les matériaux en poudre. Le non solvant a une viscosité inférieure à celle du liant combiné au solvant. Le solvant est présent dans une quantité inférieure à la quantité habituelle. Les composants sont mélangés et plastifiés, puis façonnés pour former une ébauche crue. Le choix des composants confère à l'ébauche crue une meilleure résistance initiale à l'état mouillé. Ce procédé est notamment utilisé dans le traitement par extrusion de systèmes de liants aqueux tels que l'eau et des éthers de cellulose et des non solvants hydrophobes de façon à former des structures telles que des nids d'abeille. Dans l'ébauche, le rapport, lors de la cuisson ultérieure, de la résistance isostatique à la résistance de l'axe A est d'au moins environ 20 % supérieur à celui des ébauches fabriquées sans la composition de mélange de l'invention. L'invention porte également sur une ébauche en nid d'abeille dont le rapport de la résistance isostatique à la résistance de l'axe A est d'au moins environ 0,33 pendant la cuisson.
Patent CA-2291472-A1 (CA)
Title: Multi-layer coating
Inventor: JONTE PATRICK B
IPC: C23C28/00
Filed: 1999-12-02
Abstract: An article having deposited on at least a portion of its surface a decorative and protective multi-layer coating comprising at least one nickel layer, a tin-nickel alloy layer, a chrome layer, and sandwich layer comprised of layers comprised of titanium or titanium alloy alternating with layers comprised of titanium compound such as titanium nitride or titanium alloy compound such as titanium nitride. The coating provides abrasion and corrosion protection to the underlying substrate and also protects the substrate from attack by chemicals such as acids and bases while being crack resistant and resistant to galvanic corrosion.
Patent CA-2295448-A1 (CA)
Title: Reality mediator for the prevention of theft of visual attention or theft of mental visual processing resources
Inventor: MANN STEVE
IPC: G02C7/10
Filed: 1999-12-31
Abstract: A wearable device optionally alters the wearer's visual perception of reality;  in certain modes of operation. The device can selectively alter only portions of a scene. It can augment, deliberately diminish. or otherwise alter the wearer's visual world, for example, by incorporating hibernating hyperlinks directly into the real physical world. An application of the device to filtering out advertisements is proposed. The wearable device therefore prevents the theft of visual attention or the theft of mental visual processing resources that otherwise result from real-world spam. The device can selectively filter out span or allow it to pass through, based on payment to the wearer. The device allows the individual wearer to select and control the advertisements displayed to his or her own visual system, rather than leaving this matter up to the sole discretion of tile seller.