baber/WOPTO huggingface dataset:
Patent CA-2186964-A1 (CA)
Title: Systeme de couleurs et utilisation de ces couleurs comme pigments
Inventor: TOURANGEAU PAULETTE
IPC: C09C3/00
Filed: 1996-10-01
Abstract: L'invention concerne un système de couleurs naturelles constituées de plusieurs milliers de poudres colorées d'origine minérale et de matériaux dans ou sur lesquels des pigments ont été appliqués et ultérieurement soumis à un ou plusieurs traitements thermique et/ou par irradiation, et dont les couleurs couvrent la totalité du spectre visible et offrent une énorme variété de tons, teintes et reflets depuis le blanc jusqu'au noir en passant par toutes les couleurs de l'arc-en-ciel. Les poudres de ce système sont obtenues par des procédés mécaniques, chimiques, thermiques et/ou physiques et sont utilisées seules ou en combinaison. Elles sont notamment utilisables pour colorer des matériaux, et notamment ceux destinés à être employés dans les domaines de la construction et de l'architecture.
Patent CA-2188225-A1 (CA)
Title: Method and apparatuses for measuring the resistivity of mud in a hydrocarbon well
Inventor: EISENMANN PIERRE
IPC: G01V3/20
Filed: 1996-10-18
Abstract: The invention relates to a method of measuring the resistivity of a drilling mud by means of a sonde provided with an annular current electrode (A o) and with annular guard electrodes (A, A'), current I o being emitted into the surrounding formation together with focusing currents I and I'. A signal representative of R m is produced in response to I o. Various apparatuses for implementing the method are described. Another method implements a technique of computed focusing.      Corresponding apparatuses are also described.
Patent CA-2188504-A1 (CA)
Title: A process for preparing solid elastomeric polyurethanes having reduced surface skinning
Inventor: PANTONE RICHARD S
IPC: C08K5/00
Filed: 1996-10-22
Abstract: This invention relates to solid elastomeric polyurethanes prepared by reacting, in an open mold at an isocyanate index of 80 to 120, (a) an isocyanate prepolymer having an isocyanate content of 3 to 15% by weight and a number average molecular weight of 550 to 20,000 prepared by the reaction of (1) organic polyisocyanates having 2 to 3 NCO groups, and (2) isocyanate-reactive polyester polyols having two to three isocyanate-reactive hydroxyl groups and a number average molecular weight of 400 to 10,000 and prepared in the presence of an esterification catalyst, and optionally containing other isocyanate-reactive compounds, wherein the equivalent ratio of isocyanate groups to isocyanate-reactive groups is 1.2:1 to 34:1; (b) a diol chain extender, optionally in admixture with a crosslinker and/or an amino-containing chain extender and/or crosslinker; (c) 0.001 to 10% by weight, based on the weight of the isocyanate prepolymer, of a catalyst; and (d) 0.01 to 5% by weight, based on the isocyanate prepolymer, of surface skinning retardants consisting of (1) certain carboxylic acids and derivatives thereof, (2) 1,2-diketones, 1,3-diketones, and aromatic hydroxyketones; (3) mono- and dihydric phenols, (4) N-substituted ureas and thioureas, and/or (5) certain phosphorus compounds.
Patent CA-2189518-A1 (CA)
Inventor: EASLER TIMOTHY EDWARD
IPC: C04B35/571
Filed: 1996-11-04
Abstract: This invention prepares highly densified ceramic bodies by the pyrolysis of a mixture comprising a preceramic organopolysiloxane, beta silicon carbide powder, a source of boron, a source of aluminum and, optionally, a curing agent for the organopolysiloxane.  Such highly densified ceramic bodies are prepared by sintering under pressure or by a pressureless sintering process.
Patent CA-2192176-A1 (CA)
Inventor: CHEN SHAU-LIN
IPC: B01J23/63
Filed: 1995-02-14
Abstract: La présente invention se rapporte à un catalyseur composite en couches, appelé généralement catalyseur à conversion à trois voies, qui a la capacité de catalyser pratiquement simultanément l'oxydation d'hydrocarbures et du monoxyde de carbone et la réduction des oxydes d'azote. La structure du matériau composite en couches catalyseur de la présente invention se caractérise en ce qu'elle comporte une première couche et une seconde couche. La première couche comprend un premier support; au moins un premier composant de palladium, éventuellement une quantité infime de platine, éventuellement une première composition renfermant de l'oxygène, éventuellement un composant de zirconium; éventuellement au moins un premier composant de métaux alcalino-terreux et éventuellement au moins un premier composant de métaux des terres rares sélectionné dans le groupe constitué par des composants métalliques de lanthane et des composants métalliques de néodyme. La seconde couche comprend un second support; un second composant de platine; un composant de rhodium; une seconde composition renfermant de l'oxygène comprenant un second composant dilué renfermant de l'oxygène et éventuellement un composant de zirconium.
Patent CA-2193934-A1 (CA)
Title: Moisture-crosslinking hot-melt adhesives which emit no or only small amounts of carbon dioxide
Inventor: GURKE THORSTEN
IPC: C08G18/10
Filed: 1996-12-24
Abstract: Disclosed is a moisture-crosslinking hot-melt adhesive which comprises:    (1) a reaction product of:         [A]  a low molecular weight polyol having a molecular weight of from 500 to 10,000, [B]  a diisocyanate, and [C]  a hydroxyepoxide, and (2)  an anhydride. The moisture-crosslinking hot-melt adhesive does not generate carbon dioxide during curing.
Patent CA-2194481-A1 (CA)
Inventor: BINET JEAN
IPC: A61K31/4406
Filed: 1996-04-27
Abstract: Cette invention concerne des composés de 2-uréido-benzamide correspondant à la formule (1) où: premièrement, R?1¿ représente H, halogène, alkyle, alcoxy, ou dialkylamino et R?2¿ représente H, halogène, hydroxy, nitro, alkyl, alcoxy, cycloalkylméthoxy, alkylthio, alkylsulfinyl, alkylsufonyl ou (II) où j, R?3¿ et R?4¿ sont tels que définis dans la description; deuxièmement, X est un alkyle, un cycloalkyle, un cycloalkylméthyle un alcoxyalkyle ou (III) où k, R?5¿ et R?6¿ sont tels que définis dans la description; et, troisièmement, Y représente H ou alkyl et Z représente (IV), (V) ou (VI) où m est un nombre entier de 0 à 4 et (VII), A?1¿ et A?2¿ sont tel que définis dans la description; ou encore, -NYR peuvent constituer un noyau. Cette invention concerne également des sels d'addition d'acide de ces composés, acceptables sur le plan pharmaceutiques, lesquels composés sont utiles en qualité d'inhibiteur d'ACAT.
Patent CA-2194921-A1 (CA)
Title: Protocol verification using symbolic representations of queues
Inventor: BOIGELOT BERNARD ARMAND G G
IPC: G06F11/30
Filed: 1997-01-13
Abstract: A finite symbolic representation of the states of an unbounded FIFO queue. Because the representation is finite. protocol verification tools of the type which explore the state space of a protocol may be used to verify protocols which involve unbounded FIFO queues and consequently have an infinite state space. In a preferred embodiment, the finite symbolic representation is used together with a finite state automaton whose states are the global states of the protocol. A symbolic representation of the queue states is associated with each of the global states. State space exploration continues until all new queue states reached are already contained in the states of the finite symbolic representation. Increased processing speed is achieved by employing meta-transitions in the finite state automaton and exploring the meta-transitions from a global state before exploring the ordinary transitions.
Patent CA-2197093-A1 (CA)
Title: Weed killing method and apparatus
Inventor: ADEY DARREN CHARLES
IPC: A01M15/00
Filed: 1995-07-19
Abstract: A weed killing apparatus comprises a hollow chamber (1) having an air inlet and an open end forming a hot air outlet (4), means for blow in air through the chamber to exit the open end thereof, heating means (5) in the chamber (1) for heating the air passing through the chamber so that the air exits the outlet (4) end of the chamber (1) as a blast of heated air, and means for introducing moisture (21) into the air flow to mix with the blast of heated air. The foliage of weeds is surface wetted and heated which kills the weeds.
Patent CA-2202833-A1 (CA)
Title: Surgical retractor
Inventor: HINCHLIFFE PETER W J
IPC: A61B17/132
Filed: 1997-04-16
Abstract: Apparatus and method for surgery is disclosed which includes a retractor having a substantially planar base defining an opening for overlying an operative site on a patient, and at least one retractor blade slidably mounted to the base. The base is positioned on the patient such that the opening therein overlies the operative site. The operative site is percutaneously accessed, and obstructing tissue is retracted by engaging the tissue with the retractor blade. A surgical instrument is provided which is engageable with the base and operable at the operative site through the opening in the base. A surgical procedure is carried out through the opening in the base with the surgical instrument.
Patent CA-2203848-A1 (CA)
Title: Squeegee roller for imaging systems
Inventor: ROSEN YOSSI
IPC: G03G15/10
Filed: 1997-04-28
Abstract: Squeegee apparatus (14) for squeegeeing excess material from a surface (12), from which surface at least a portion of the material remaining after squeegeeing is to be transferred to a second surface (16), comprising a first surface, having a central portion and two end portions having recessed surfaces and having a liquid material thereon at least in said central portion, said surface moving in a given direction at a squeegee region and a second, squeegee surface, urged against at least the central portion of the imaging surface at the squeegee region. In the preferred embodiments of the invention the squeegee apparatus is used in imaging apparatus, preferably utilizing liquid toner.
Patent CA-2205222-A1 (CA)
Title: Stepped fold for a tin
Inventor: STRUBE LUTZ
IPC: B21D51/32
Filed: 1995-11-14
Abstract: Proposed is an improvement in the shape of a fold in a tin can which will allow the use of sheet metal of lower gauge than that currently used. This is achieved with a fold geometry on a tin can which is closed off with a double fold, such as a drink or food tin; by providing a continuous or stepped contour (23) on the fold side (2c, 2b); and by ensuring that the lid hook (2a, 2b, 2c) is clearly in area-contact (positive fit) on its outer side with the free end of the body hook (1a) in its lower third. The invention, if applied to standard-gauge sheet metal, results in a better seal owing to greater clamping and locking force (2d, 21). Overall, the invention results in a stronger fold.
Patent CA-2207116-A1 (CA)
Title: Electrolysis apparatus for combustion engines
Inventor: DALEKOS GEORGE
IPC: F02B43/10
Filed: 1997-06-06
Abstract: A hydrogen gas generating chamber can be used in a hydrocarbon fuel combustion engine to produce hydrogen gas to supplement the primary fuel burned by the engine. The chamber includes various means for eliminating the risk of explosion including a plug releasable by internal pressure, a burstable section on the housing, and a solenoid valve actuated to vent any gases generated while the engine is not operating and a gas production/consumption feed back loop. The chamber is formedof a ABS material which tends not to shatter. The electrodes of the chamber are arranged to create electrolytic cells operating with voltages efficacious for electrolysis of water and reducing or minimizing ohmic heating while using standard vehicle voltages.
Patent CA-2208361-A1 (CA)
Title: Independent compartment temperature control for single-pack operation
Inventor: CHRISTIANS DOUGLAS L
IPC: B08B3/02
Filed: 1995-12-20
Abstract: A dual-pack, aircraft environmental control system (100) has each pack (104, 108) dedicated to providing a temperature-controlled air supply to a corresponding compartment (144, 148), either the crew (144) or passenger (148), of the aircraft. Each refrigeration pack (104, 108) is fed hot, compressed bleed air (176, 200) from an associated turbine engine (128, 132) on the aircraft. During normal operation, the pack associated (104, 108) with a particular compartment (144, 148) on the aircraft provides the air supply with independent temperature control to that compartment. However, during failure of one of the refrigeration packs (104, 108) and the resulting operation of the other pack, environmental control system (100) is able to provide independent temperature control of the air supplied to each compartment (144, 148).
Patent CA-2209179-A1 (CA)
Inventor: BARRERAS FRANCISCO J
IPC: A61N1/36
Filed: 1996-01-04
Abstract: The implantable stimulator (10), in accordance with the principles of the present invention, utilizes a high value, small sized capacitor (36) having at least a capacitive rating of 0.1 farads which is completely contained within the implantable stimulator (10). This high value, small size capacitor (36) or series of capacitors enables the implantable stimulator to deliver, on a controlled and continual basis, electric stimulation pulses to targeted tissues over at least an 8 hour period. Further the capacitive power source is replenished via an external, RF  coupled device (20) on a daily or other long-term periodic basis. During the replenishying cycle, the energy contained in the battery of the external transmitter is transferred to the internal capacitive power source in the implantable stimulator. The method includes providing, on an exclusive basis, power to an implantable stimulator via a high value capacitive source during at least an 8 hour cycle of substantially continued delivery of electric stimulation pulses to targeted tissue. The method includes incorporating and containing a capacitive device in the implantable stimulator wherein the capacitive device has a capacitive rating of at least 0.1 farads.
Patent CA-2213725-A1 (CA)
Title: Method for optimized transmission of atm cells via connection hops
Inventor: WALLMEIER EUGEN
IPC: H04L49/111
Filed: 1997-08-22
Abstract: A method for alleviating the loss of ATM cells when employing the weighted fair queuing scheduling method wherein the ATM cells are subjected to a peak bit rate limitation in a further stage of the method, and wherein such limitation is of the time interval of two read counters that sample the memory elements of a calendar in a cyclical time grid.
Patent CA-2218297-A1 (CA)
Title: Treatment for reducing friction of seat belts
Inventor: SAITO ISOO
IPC: D06M15/507
Filed: 1996-07-19
Abstract: A treatment for reducing friction of seat belts which is characterized by containing therein a polyether polyester having an average molecular weight of 2000-15000 which is obtained from a polyether diol and an aliphatic carboxylic acid, and preferably further containing a silicone compound. This treatment can be applied to either seat belt yarns in the yarn-making step or to seat belt webbing. The resulting seat belt is superior in slip properties and retains them even after wear. It is also superior in retractiablity and wear resistance (durability).
Patent CA-2218678-A1 (CA)
Title: Tintable cross-linkable compositions
Inventor: KOK CHONG MENG
IPC: C08F290/06
Filed: 1996-04-26
Abstract: A cross-linkable polymeric casting composition capable of producing an optical article exhibiting improved tint rate, the casting composition including a polyalkylene glycol diacrylate or dimethacrylate; a urethane monomer having terminal acrylic and/or methacrylic groups; and a monomer including a recurring unit derived from at least one radical-polymerisable bisphenol monomer capable of forming a homopolymer having a high refractive index;  and/or a tri- or tetra-functional vinyl, acrylic or methacrylic monomer, the cross-linkable polymeric casting composition being modified to reduce the rigidity of the optical article formed therefrom, and/or increase the chemical affinity of the components of the casting composition to a dye material.
Patent CA-2221094-A1 (CA)
Title: An apparatus for dispensing individually predetermined lengths of a web material
Inventor: KASTFELT SVEND-OVE
IPC: G06Q10/08
Filed: 1996-05-14
Abstract: An apparatus for automatically dispensing individually predetermined lengths of a web material, such as textile, from a bolt of same. An inclined transport surface (5) conveys a bolt (1) introduced by a customer towards a flip-over mechanism comprising rods (58) on chains (57), the textile (14) thereby being unwound from the bolt (1), the length of the unwound textile being measured by a rotative measuring device (32), and the predetermined length of textile being severed by a severing device (64). The separated length is delivered to the customer for removal from the apparatus in folded condition together with the bolt (1) in a receptacle (45) displaceable along rails (66).
Patent CA-2221249-A1 (CA)
Title: A brake lining wear indicating device
Inventor: EKEROTH MATS
IPC: B60T17/22
Filed: 1996-05-29
Abstract: An automatic brake lever (1) with a built-in slack adjuster is intended for transmitting brake force from a brake cylinder and is mounted on a brake actuating cam shaft (2). For the purpose of accomplishing a wear indicating device, a coded disc (10) is connected to the cam shaft, whereas a housing (9, 11) therefore is connected to the brake lever or a fix-point for the lever. The coded disc is provided with a number of coded paths of circular shape, magnetic areas of equal length being provided in each coded path. A number of hall-elements (15) corresponding to the number of coded paths are provided in the cover (11) of the housing, each hall-element being arranged to sense the magnetic areas in the respective coded path. The signals from the hall-elements together indicate the relative position between the disc and the cover.
Patent CA-2221587-A1 (CA)
Title: Promoters for gene expression
Inventor: LAGOSKY PETER A
IPC: C12N15/16
Filed: 1996-05-16
Abstract: The present invention provides a novel expression system for the production of protein in bacterial hosts. The system utilizes novel promoters that are highly efficient in initializing transcription and therefore enhance protein yield. The promoters comprise the -35 region of the consensus E. coli promoter, the -10 region of the IppP-5 promoter and a spacer between these two regions derived from either the Ipp or IacUV5 promoters.
Patent CA-2223201-A1 (CA)
Inventor: SPANGLER MARK
IPC: B60R21/26
Filed: 1997-12-02
Abstract: A hybrid inflator (10), includes a storage chamber (14) for storing a pressurized gas and a pyrotechnic heater assembly (30) which has a solid gas generating material (42) within a combustion chamber (33).  A closure (62) provides a pressure seal between the storage chamber and the combustion chamber. Upon receiving a control signal, an igniter (54) ignites the solid gas generating material.  The closure is ruptured, allowing a mixture of hot generated gas and stored gas to discharge through a diffuser (70) and flow into a vehicle occupant restraint.
Patent CA-2236476-A1 (CA)
Inventor: SI JOAN QI
IPC: C12N9/00
Filed: 1996-12-02
Abstract: A dough- or bread-improving composition comprising a deaminating oxidase, such as an amine oxidase or a L-amino acid oxidase, as well as the use of the composition in the preparation of dough and baked products.
Patent CA-2236709-A1 (CA)
Title: Gantry press with press roll height adjustment
Inventor: SHAMBLIN WAYNE A
IPC: B27F7/15
Filed: 1996-10-18
Abstract: A gantry press adjustment apparatus for vertically adjusting a parallel gantry press (10) with respect to a work surface (77). The gantry press has a rigid frame with a first side frame portion (12) and a second side frame portion (14), and a press roller (16) mounted therebetween. Each side frame portion has first and second generally parallel vertical members (28, 30). The adjustment apparatus has first and second planar members (40) which are adapted to receive and support the axle (60) of the press roller. The planar members are slidably mounted along a vertical axis of the frame portions. First vertical adjustment members (100, 200) are connected to the first side frame portion and to the first planar member, and second vertical adjustment members (300, 400) are connected to the second side frame portion and to the second planar member. A drive (134) is connected with each of the adjustment members to adjust each member at a substantially equivalent rate.
Patent CA-2241582-A1 (CA)
Title: Hybrid solid electrolyte ionic conductor systems for purifying inert gases
Inventor: GOTTZMANN CHRISTIAN FRIEDRICH
IPC: B01D53/22
Filed: 1998-06-22
Abstract: A process for removing oxygen from a feed gas stream to produce an oxygen-depleted retentate gas stream by supplying the feed gas stream to a bulk oxygen separation system for removing oxygen to produce an oxygen-depleted crude product gas stream and a first oxygen-containing permeate effluent stream, and supplying the oxygen-depleted crude product gas stream to a separator having a primary ion transport membrane to produce a second permeate effluent stream and the oxygen-depleted retentate gas stream.  A reactive purge gas is added to react with a portion of the oxygen permeating through the primary ion transport membrane and purge the permeate side of the primary ion transport membrane, and/or a recycle gas stream comprising at least a portion of one gas stream produced during the process is added to at least one other of the gas streams.
Patent CA-2242936-A1 (CA)
Title: Craps qualified by baccarat
Inventor: BROWN J BRECK
IPC: A63F1/00
Filed: 1997-01-27
Abstract: It method and game board (10) are shown for combining the play of baccarat, and the play of craps based upon two dice (28). The board presents a semicircular playing arena with a plurality of card indicia or spots (15, 17), and a plurality of player areas spaced about the circumference of the circular periphery of said semicircular playing arena. Each of the player areas comprises a rectangular player box (18) for placing a baccarat wager on the player hand (17), a rectangular banker box (20) for placing a baccarat wager on the banker hand (15), and a plurality of craps wager indicator circles (12, 14, 16) dividing the dice numbers 2 through 12 into a plurality of groups for wagering at different odds for each group. Tie wager indicia (24) are included for offering a baccarat wager in the form of a tie wager to each player. In the event that the player hand ties the banker hand under the rules of baccarat, each player who placed a tie wager is offered the roll of the dice and a craps wager on one of the craps wager circles. Each craps wager is settled based on the outcome of the roll of the dice. In addition, at the beginning of each hand, each player is offered an accumulated pot wager on one or more of the craps wager indicators (12. 14, 16).
Patent CA-2246040-A1 (CA)
Inventor: LOREE DWIGHT N
IPC: E21B7/06
Filed: 1998-08-28
Abstract: In the field of drilling lateral channels from the cased bore of an oil well, a system is presented whereby a number of lateral channels can be drilled through the casing and out a distance into the formation with no requirement to move or raise the lateral drilling apparatus to the surface for each lateral channel drilled. The direction of the drilled lateral channel can be selected by the system operator at the well head. The system will allow the drilling of lateral channels with the well under pressure. A configuration is shown which will allow the installation of a flexible perforated liner in the channel, which flexible perforated liner will prevent the material around the channel from collapsing.