baber/WOPTO huggingface dataset:
Patent CA-2252375-A1 (CA)
Title: Nucleic acid vaccination for parvoviral infections
Inventor: SCHORR JOACHIM
IPC: C07K14/015
Filed: 1997-04-18
Abstract: The general field of the invention is a method for nucleic acid vaccination of animals to protect them from parvoviral infections. This invention is more particulary related to the preparation and use of parvoviral DNA and its administration to dogs, cats and mink so as to induce an immune response that can protect these animals from disease caused by virulante parvovirus. Nucleic acid immunogens are designed to include the antigenic portions of the parvoviral genome which are incorporated into bacterial plasmids. These plasmids produce the desired parvoviral gene product when introduced into host cells by transfection. Host cells transfected with the parvoviral immunogen expressing plasmids produce a stream of antigenic proteins to which the host immune system will mount a protective immune response.
Patent CA-2254051-A1 (CA)
Inventor: BATES HERBERT E
IPC: H01L21/683
Filed: 1997-05-16
Abstract: An electrostatic wafer-holding chuck (10) includes first (14) and second (20) dielectric plates formed of single crystal aluminum oxide and at least one electrode (16) disposed within a recess (14A) formed within the first dielectric plate (14). The second dielectric plate (20) has a top wafer supporting surface (20A) that has a fluid distribution network (28) formed therein. The fluid distribution network (28) channels a heat transfer medium (22) to the backside of the wafer (W). When the first (14) and second (20) dielectric plates are assembled, the first dielectric plate (14) is disposed contiguous to the second dielectric plate (20) and then are diffusively joined together to form a monolithic, hermetically sealed electrostatic chuck (10).
Patent CA-2256009-A1 (CA)
Title: System with and method of cryptographically protecting communications
Inventor: DE JONG EDUARD KAREL
IPC: G06Q20/00
Filed: 1996-05-24
Abstract: A value transfer system of at least one VCD (=Value Carrying Device) (1) and at least one VAD (=Value Accepting Device) (2), the VAD (2) having a memory (53) for storing at least an aggregate value (28) of previous accepted values and means for transferring a claiming message (13), the VCD (1) having a memory (52) for storing at least a balance value (7) and means for transferring a proving message (14), wherein the VAD (2) includes into the claiming message (13) a transaction value (20), a previous aggregate value (21) and a corresponding previously computed proving cryptogram (22), the VCD (1) computes and includes into the electronic message (14) a transaction proving cryptogram (35), computed on the basis of the previous aggregate value (21), the corresponding previously computed proving cryptogram (22) and the transaction value (20), and the VCD (1) computes the at least one transaction proving cryptogram (35) only if it has established the correctness of the received previous aggregate value (21) by using said corresponding previously computed cryptogram (22) and after it has reduced the balance value (7) with the transaction value (20).
Patent CA-2256048-A1 (CA)
Title: Procede et dispositif servant a afficher un appel en attente
Inventor: YEE BRUCE WILLIAM
IPC: H04M1/57
Filed: 1998-03-12
Abstract: Procédé et dispositif informant un usager d'un appel en attente pendant qu'un téléphone est en attente. Un trajet de signal de transmission et un trajet de réception entre une ligne de central et des éléments d'émission et de réception dans le téléphone sont bloqués afin de mettre un appel en attente. Un signal d'alerte d'installation d'abonné est reçu depuis le central tandis que le trajet de signal de transmission et le trajet de réception sont bloqués. Le trajet de réception est débloqué après la réception du signal d'alerte de l'installation d'abonné et un signal de message audible est généré et inséré dans le trajet de réception en réaction au signal d'alerte de l'installation d'abonné afin d'informer l'usager de la réception de ce signal. Le trajet de réception est ensuite bloqué de nouveau.
Patent CA-2257014-A1 (CA)
Title: Pipe inspection device and method
Inventor: SIVACOE ORLANDE
IPC: G01M99/00
Filed: 1998-12-21
Abstract: A method of inspecting a pipe, by pushing a video camera through the pipe on a cable, with a wire helical coil disposed between the video camera and a stop on the cable, the wire helical coil being long enough to permit passage of the video camera around a first bend. As the video camera is pushed into the pipe and moves around the first bend, a cable stiffener is placed on the cable to stiffen the cable in the first straight section while permitting the cable to move through the cable stiffener.      The video camera is then pushed down a second straight section and around a second bend to view a third straight section. The cable stiffener comprises a rod having first and second ends, a straight slot running along the rod from the first end to the second end for receiving a cable, and the rod having an enlarged portion along part of the rod forming a centralizer.
Patent CA-2257268-A1 (CA)
Inventor: JALKANEN ERKKI
IPC: G01P15/18
Filed: 1997-06-19
Abstract: The invention relates to a sensor device for measuring attitude, acceleration or gravitational field and its gradient components. The device includes a spherical cavity (3) which contains a sensor substance in the form of a fluid or some other inertial material having fluidic properties. The cavity (3) is provided with measuring sensors or measuring electrodes (-x, +x; -y, +y; -z, +z) for three different coordinate axes x, y, z, all of said sensors responding to said common inertial mass which fills the cavity (3). Such assembled single compact measuring device can be used for determining any of the said quantities 3-dimensionally.
Patent CA-2257317-A1 (CA)
Title: Compact motorized table saw
Inventor: GREENLAND DARRELL
IPC: B28D1/04
Filed: 1997-06-09
Abstract: A saw (10) with a compact frame (12) that permits the cutting of large workpieces and that can be operated repeatedly without requiring manual activation of an on/off switch. A special pivoting support arm (16) pivots outwardly away from a motor assembly (18) to allow the cutting of large workpieces while allowing the size of the saw to remain relatively compact and portable. An automatic power switch mechanism (28, 30) also is provided to automatically turn on the saw motor upon the placement of a workpiece adjacent to the saw blade (20). The saw table (14) can be slid beyond the frame (12) for the cutting of large workpieces.
Patent CA-2259051-A1 (CA)
Title: Method of recovering a coolant, apparatus therefor, tool therefor and three-way valve for recovering a pressurized fluid
Inventor: ARII TSUNEO
IPC: F16K11/085
Filed: 1999-01-15
Abstract: A method of recovering a coolant at a low cost and highly efficiently, an apparatus therefor and a tool therefor.      When an apparatus from which to recover is an automobile, the fuel remaining in the fuel tank is burned and consumed to prevent contamination to the environment.      The three-way valve unit is opened to the recovery circuit simultaneously with the connection of the coupler unit to the recovery circuit in order to avoid a sudden increase in the pressure even when the compressor does not readily come into a halt, and the pressurized fluid such as the coolant is safely recovered by the recovery circuit out of the system.      The coolant is guided into the recovery tank through the condenser utilizing gravity by driving the compressor in the apparatus from which the coolant is to be recovered, such as a car or an apparatus (refrigerator, refrigerated show case, etc.) out of service.      A socket is fitted to a plug of the coupler unit in the three-way valve box disposed in the pressurized fluid circuit such as a refrigerator circuit. Then, the socket or a sleeve which is an outer cylinder thereof is turned by about 45 to about 90 degrees. Or, the socket is pushed and pulled to turn the valve, and the pressurized fluid is safely and reliably recovered by the recovery circuit connected to the socket in an ON-OFF manner or in a proportionally controlled manner.
Patent CA-2260457-A1 (CA)
Title: Apparatus for fixing a graft in a bone tunnel and uses thereof
Inventor: TAYLOR RONALD L JR
IPC: A61B17/58
Filed: 1999-01-26
Abstract: A method for fixing a portion of a piece of tissue in a bone tunnel comprising the steps of placing the portion of a piece of tissue in the bone tunnel, advancing spaced-apart first and second metal wires though the bone, transversely of the bone tunnel, so as to intersect the bone tunnel and extend into the portion of a piece of tissue, removing one of the wires and replacing the one removed wire with a first rod, and removing the other of the wires and replacing the other removed wire with a second rod, whereby to retain the portion of a piece of tissue in the bone tunnel with the rods.
Patent CA-2260780-A1 (CA)
Inventor: UEHIRA KIYOTAKA
IPC: H01H25/04
Filed: 1998-05-19
Abstract: L'invention concerne un commutateur multiple pour automobile comportant une simple structure de raccordement à relais entre des ensembles commutateurs, comprenant un petit nombre de pièces et d'excellentes caractéristiques d'assemblage et de fiabilité. Cette structure comporte: un ensemble commutateur d'éclairage (1) possédant un boîtier présentant une traverse logée dans une rainure (5a) ménagée dans un corps (5), une patte de montage élastique (7a), et une griffe d'arrêt (8a) disposée dessus, une pluralité de commutateurs fonctionnels logés dans le boîtier, et un connecteur fixe (10a) disposé dans la partie inférieure du boîtier et adapté pour extraire des signaux de commutation; et un ensemble commutateur d'essuie-glace (2) renfermant une pluralité de commutateurs fonctionnels et comprenant de la même manière une traverse, une patte de montage (7b), une griffe d'arrêt (8b) disposée dessus, et un connecteur fixe (10b) logé dans l'ensemble (2). Lorsque ces ensembles commutateurs sont montés sur le corps (5), un conducteur de relais (17) ayant à ses deux extrémités des connecteurs mobiles (19a, 19b), montés amovibles aux connecteurs fixes (10a, 10b) des ensembles commutateurs, est en contact libérable avec le corps (5).
Patent CA-2262959-A1 (CA)
Title: Gants et outils possedant une bande magnetique flexible permettant de mieux assurer la prise
Inventor: BENECKI WALTER T
IPC: A41D19/00
Filed: 1997-07-25
Abstract: Cette invention concerne des procédés permettant d'améliorer la prise qu'a une personne sur un outil grâce à l'utilisation de bandes magnétiques flexibles et fines (24). Les bandes magnétiques flexibles (24) peuvent être associées au gant (10) dont se sert une personne pour saisir l'outil, à la surface de prise de l'outil, ou encore aux deux. Dans un autre mode de réalisation, les bandes magnétiques flexibles (24) peuvent être associées soit au gant (10), soit à l'outil, tandis que la surface opposée du gant ou de l'outil est revêtue ou incrustée d'une matière exerçant une attraction magnétique (54). L'interaction magnétique entre le gant et l'outil permet ainsi de mieux assurer la prise de l'utilisateur.
Patent CA-2267139-A1 (CA)
Title: Methods and means for selecting peptides and proteins having specific affinity for a target
Inventor: LOGTENBERG TON
IPC: C12N15/10
Filed: 1997-10-07
Abstract: The invention provides novel methods and means for selecting peptides and for other proteinaceous molecules having specific binding affinity for a target.  The binding peptides/proteins are displayed on replicable display packages, preferably phages. The binding peptides are tested for this binding affinity to the target. In one embodiment, the target is provided in the form of peptides displayed on a solid phase, in another the target is presented in a tissue section.
Patent CA-2267491-A1 (CA)
Inventor: PIAZZA THOMAS A
IPC: G06T15/40
Filed: 1999-03-30
Abstract: In a computer image generation system, a method for reducing page switches when rendering polygons to a color and Z-buffer using a memory subsystem with N banks of memory. The method is performed by first allocating the pages of a first memory subsystem (Z-buffer or color) to consecutive and contiguous pages of the frame buffer memory, where the individual frame buffer memory pages reside in one of N banks of memory. The second memory subsystem(Z-buffer or color)is then allocated according to the following rule : the allocation of the second memory subsystem is made such that its first page does not reside in a memory bank whose index is equal to the index of the memory bank allocated to the first page of the memory subsystem.      The allocation rule effectively reduces page switches by virtue of being able to access different memory banks for both Z-buffer and color read and writes thereby by avoiding the computational costs associated with opening multiple memory pages in the same memory bank.
Patent CA-2268204-A1 (CA)
Inventor: HA SIMON
IPC: B65D25/22
Filed: 1999-03-30
Abstract: In this invention, called the 'sticky back disposable container', double side adhesive is apply partially or entirely to one or more surfaces of a disposable container of various shapes and sizes. Then, a cover sheet, the size of the adhesive area, will be put over the exposed adhesive area. This will render the once sticky surface no longer adhesive.     When the user of this 'sticky back disposable container' finds the need to adhere the disposable container, the user simply peel off the cover sheet and the adhesive matter is exposed again allowing the disposable container to be stick to the ideal surface.
Patent CA-2268218-A1 (CA)
Title: Linear phosphine-borane polymers and methods thereof
Inventor: MANNERS IAN
IPC: C09K21/14
Filed: 1999-04-01
Abstract: Linear backbone phosphorus-boron polymers of the general formula (I):    wherein R1, R2, R3, and R4, are the same or different and selected from H, optionally substituted alkyl, alkenyl and phenyl; and n is at least 2, and particularly high molecular weight polymers of number average molecular weight of at least 5,000.      The polymers are of use as fine retardants.
Patent CA-2268242-A1 (CA)
Title: Co-oxidation of h2s and saturated hydrocarbons
Inventor: BARTON DEREK H R
IPC: C01B17/04
Filed: 1997-10-08
Abstract: Process for the catalytic oxidation of a saturated hydrocarbon to obtain a ketone which involves carrying out the oxidation simultaneously with the oxidation of H2S to form elemental sulfur and the ketone.
Patent CA-2268358-A1 (CA)
Inventor: LANQUETIN MICHEL
IPC: A61K31/57
Filed: 1997-10-08
Abstract: The invention concerns the field of chemical therapy and more particularly the field of pharmaceutical hormonal technique. More precisely it concerns novel pharmaceutical hormonal compositions characterised in that they are formed by an oestroprogestational combination consisting of an oestrogen compound and a progestational compound, associated or mixed with one or several non-toxic, inert and pharmaceutically acceptable excipients, for oral administration. The invention also concerns the use of the oestroprogestational mixture in which the oestrogenic constituent and the progestational constituent are administered in combination. The combined association can be prescribed continuously or intermittently, for producing a composition for treating oestrogenic deficiencies, preventing osteoporosis and cardiovascular diseases in the menopausal woman, or still for blocking ovulation in a woman during the period of ovarian activity. The invention also concerns a method for preparing these novel pharmaceutical oestroprogestational compositions.
Patent CA-2269035-A1 (CA)
Inventor: FAILLI AMEDEO ARTURO
IPC: A61P25/28
Filed: 1997-11-10
Abstract: La présente invention concerne des composés représentés par la structure (1) de la formule générale (I). Dans cette formule, R<1> est hydrogène, halogène, alkyl, alcoxy, fluoroalcoxy, trifluorométhyl, alkylthio ou SCF3; R<2> et R<3> sont chacun indépendamment hydrogène ou alkyl, ou bien R<2> et R<3> peuvent, ensemble, former un cycle cycloalkyl saturé. Enfin, R<4>, R<5>, R<6>, R<7> et R<8> sont chacun indépendamment hydrogène, alkyl, alcoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, halogène, fluoroalcoxy, CF3 ou SCF3. Ces composés conviennent particulièrement au traitement de troubles arthritiques, du cancer colorectal et de la maladie d'Alzheimer.
Patent CA-2269187-A1 (CA)
Inventor: MERRET JOHN B
IPC: B29K105/08
Filed: 1999-04-16
Abstract: Apparatus and method for the use of a remotely actuated localized pressure and heat apparatus for the consolidation and curing of fiber elements in structures.  The apparatus includes members for clamping the desired portion of the fiber elements to be joined, pressure members and/or heat members. The method is directed to the application and use of the apparatus.
Patent CA-2271336-A1 (CA)
Title: Electrical switching apparatus with operating condition indicators mounted in face plate
Inventor: IRELAND WALTER B
IPC: H01H71/50
Filed: 1999-05-07
Abstract: Electrical switching apparatus such as a power circuit breaker, network protector or switch has a self-supporting operating mechanism module including a cage formed by a pair of side plates rigidly clamped in spaced relation by spacers. The cage supports all of the operating mechanism components including a helical compression close spring mounted fully between the side plates and coupled to a cam member through a rocker in a manner which maintains the forces longitudinal to the spring. The cam member has a charging cam with a charge profile for compressing the close spring and a close profile through which the spring drives the cam member to effect a controlled release of stored energy to close the contacts of the apparatus. A close prop, spring biased to an unlatched position, is latched to secure the close spring in the charged state by a latch assembly reset by a reset lever separate from the close prop which in turn is reset by rotation of the cam member during charging. An interlock prevents release of the close spring when the contacts are closed or the trip release is actuated. An indicator actuated by a driver pivoted against the cam shaft snaps from a DISCHARGED to a CHARGED  indication as the close spring becomes fully charged and the driver drops into a notch created by a flat on the cam shaft. Rotating shafts are journaled solely in confronting apertures in the side plates. The cam shaft is captured between bushings seated in non-circular openings in the side plates thereby eliminating the need for any fasteners.  Likewise, other parts mounted between the side plates and joined by pins having enlarged heads retained by the side plates do not need retainers. Various shafts extending between the side plates have reduced diameter ends of progressive lengths for successive insertion in one side plate to aid in assembly of the operating mechanism.
Patent CA-2272422-A1 (CA)
Title: Stabilization of biocidal activity in air drying alkyds
Inventor: YANG MEIHUA
IPC: A01N47/12
Filed: 1997-11-19
Abstract: This invention is directed towards stabilizing the biocidal activity of an alkyd composition containing a halopropargyl compound and a transition metal drier by use of a chelating agent.
Patent CA-2273053-A1 (CA)
Title: Inter-ring cross-connect for survivable multi-wavelength optical communication networks
Inventor: KHANDAKER MAMUN R
IPC: H04Q11/00
Filed: 1997-12-04
Abstract: A cross-connect (92) for a multi-ring, multi-channel telecommunications network, especially for a wavelength-division multiplexed (WDM) optical network. Each of the interconnected rings (94 and (100) is self-healing by provision of a redundant counter-rotating ring (96 and 98)) or excess capacity on pairs of counter-rotating rings. Because an interconnect between self-healing rings (90) does not need to connect working to protection fibers, or similarly redundant fibers, the complexity of the interconnect can be substantially reduced. For several important architectures, the interconnect can be decomposed into one or two 3x3 interconnects. Further, a wide-sense non-blocking 3x3 interconnect can be advantageously implemented as four 2x2 switches, which may be a basic building block of optical switches. A novel algorithm is available to add new paths through such a 3x3 interconnect. The interconnect can be decomposed into one or two 4x4 interconnects when another pair of add (102)/drop (104) lines are added. Such an architecture provides full connectivity between user nodes connected to the add (102)/drop (104) lines and user nodes attached to the rings.
Patent CA-2276434-A1 (CA)
Inventor: BECKERDITE JOHN M
IPC: C08G59/42
Filed: 1997-12-05
Abstract: Hydroxy-functional polyester oligomers are prepared by contacting a hydroxyfunctional aliphatic dicarboxylic acid or a mixture of dicarboxylic acids containing hydroxy-functional aliphatic diacids, with a diglycidyl ether or diglycidyl ester in the presence of an onium catalyst in an ether solvent under conditions suitable for forming the oligomer. The oligomers can be used as hot-melt adhesives, adhesive tackifiers, plasticizers, heat-curable adhesives and heat-curable coatings. Some of these materials are biodegradable and are therefore suitable for application to compostable end products.
Patent CA-2276771-A1 (CA)
Inventor: OKAMOTO ATSUMU
IPC: B21D5/12
Filed: 1998-11-02
Abstract: A pipe forming line that has breakdown and cluster forming sections and have rolls having flexible forming capability and compatibility with steel pipes of various sizes and is capable of conducting forming by continuous roll forming is provided together with a pipe production method. A pipe forming line comprising breakdown stands, cluster stands or cage roll stands, and fin-pass stands and a pipe forming method, the pipe forming line being characterized in that, in order to bend-form to a substantially semicircular shape or a substantially final product shape by upper and lower rolls of at least multiple stages of the break down stands, it uses as the roll caliber a curve whose curvature varies continuously or stepwise, and is directly installed with a fin-pass mill without installation of cage rolls.
Patent CA-2277209-A1 (CA)
Inventor: BOGURAEV BRANIMIR
IPC: G06F17/21
Filed: 1998-11-16
Abstract: A method and system for the dynamic presentation of the contents of a plurality of documents on a display is disclosed. The method and system comprises receiving a plurality of documents and providing a plurality of topically rich capsule overviews corresponding to the plurality of documents.  The method and system also includes dynamically delivering document content encapsulated in the plurality of capsule overviews. In so doing, a system and method in accordance with the present invention can present thematic capsule overviews of the documents to users. A capsule overview is derived for the entire document, which will depict the core content of an average length article in a more accurate and representative manner thaw utilizing conventional techniques. The capsule overviews, delivered in a variety of dynamic presentation modes, allow the users to quickly get a sense of what a document is about, and decide whether they want to read it in more detail. If so, the system and method greatly facilitate the process of focused navigation into the parts of the document which may be of particular interest to the user. In a preferred embodiment, the capsule overviews include a containment hierarchy which relates the different information levels in a document together, and which includes a collection of highly salient topic stamps embedded in layers of progressively richer and more informative contextualized text fragments. The novel presentation metaphors which the invention utilizes are based on notions of temporal typography, in particular for exploiting the interactions between form and content.