baber/WOPTO huggingface dataset:
Patent CA-2271332-A1 (CA)
Inventor: BEAUREGARD NORMAND
IPC: B63H25/44
Filed: 1999-05-07
Abstract: A control mechanism for a watercraft having a hull adapted to float on and travel through a volume of water, said mechanism comprising a set of control elements comprising a pair of water-contacting surfaces symmetrically disposed with respect to the general longitudinal plane of symmetry of the watercraft, said water-contacting surfaces movable between an inoperative position and a plurality of operative positions in which, when in contact with said volume of water along a lateral wall of the hull and angled in a force-generating angle, generates a force having a steering effect on the watercraft, said force-generating angle is any angle between the water-contacting surface in its operative position and an instantaneous direction of travel of the watercraft. The mechanism further comprises a controller for actuating said control elements. The control elements can act asymmetrically to produce a steering effect or symmetrically to produce a deceleration effect.
Patent CA-2276660-A1 (CA)
Title: Method of treating soil for controlling dust and for effecting soil stabilization through the application of waste water
Inventor: GROTT GERALD J
IPC: C09K17/40
Filed: 1999-06-30
Abstract: A method is provided herein for regulating the behavior of soils by controlling the ratio and amount of the various ions applied to the soils. The method includes the step of collecting waste water containing between 0.15 % and 90 % by weight of the salts of NaCl, CaCl2, MgCl2 or a combination thereof. The method includes the step of processing contaminated water to produce an effluent of waste water. The method includes the step of applying the effluent of waste water to soil to control the ratio and amount of the various ions in the soils.
Patent CA-2278145-A1 (CA)
Title: Heat resistant security document
Inventor: LAKES A DALE
IPC: B42D15/10
Filed: 1998-01-12
Abstract: A security document is provided containing a color-forming composition having an insulating material therein which allows the document to be passed through heated printing devices such as laser printers without the problem of premature color development. The color-forming composition includes a mixture of a color former, a color developer, and an insulating material. In a preferred embodiment, a toner adhesion-enhancing composition containing an insulating material is applied over the color-forming composition. The security document may be used to provide an authentication feature and/or an indication of attempted alterations from the use of solvents, heat or abrasion.
Patent CA-2285757-A1 (CA)
Title: Process for the preparation of (meth)acrylate esters and polyester (meth)acrylates
Inventor: TWEEDY HARRELL EMMETT
IPC: B01J31/02
Filed: 1999-10-08
Abstract: An improved process for preparing acrylate esters, methacrylate esters, polyester acrylates or polyester methacrylates by reacting acrylic or methacrylic acid with a monohydroxy containing compound or a polyhydroxy containing compound in the presence of a catalyst and polymerization inhibitor in a reaction vessel, in the presence or absence of a solvent, under microwave energy as a heating source.  Advantages of using microwave energy in place of conventional thermal heating include higher temperatures coupled with shorter residence times, reduced production costs, increased capacity, lower energy costs, effective use of raw materials, and solventless processing which is environmentally friendly.
Patent CA-2288662-A1 (CA)
Title: Indole derivatives having combined 5ht1a, 5ht1b and 5ht1d receptor antagonist activity
Inventor: WYMAN PAUL ADRIAN
IPC: C07D401/12
Filed: 1998-04-14
Abstract: Compounds of formula (I), processes for their preparation and their use as CNS agents are disclosed, in which Ra is a group of formula (i), in which P1 is phenyl, bicyclic aryl, a 5- to 7-membered heterocyclic ring containing 1 to 3 heteroatoms selected from oxygen, nitrogen and sulphur, or a bicyclic heterocyclic ring containing 1 to 3 heteroatoms selected from oxygen, nitrogen and sulphur; R1 is hydrogen, halogen, C1-6alkyl, C3-6cycloalkyl, COC1-6alkyl, C1-6alkoxy, hydroxy, hydroxyC1-6alkyl, hydroxyC1-6alkoxy, C1-6alkoxyC1-6alkoxy, C1-6alkanoyl, nitro, trifluoromethyl, cyano, SR9, SOR9, SO2R9, SO2NR1OR11, CO2R10, CONR10R11, CO2NR10R11, CONR10(CH2)cCO2R11, (CH2)cNR10R11, (CH2)cCONR10R11, (CH2)cNR10COR11, (CH2)cCO2C1-6alkyl, CO2(CH2)cOR10, NR10R11, NR10CO2R11, NR10CONR10R11, CR10=NOR11, NR10COOR11, CNR10=NOR11, where R10 and R11 are independently hydrogen or C1-6alkyl and c is 1 to 4; R2 is hydrogen, halogen, C1-6alkyl, C3-6cycloalkyl, C3-6cycloalkenyl, C1-6alkoxy, acyl, aryl, acyloxy, hydroxy, nitro, trifluoromethyl, cyano, CO2R10, CONR10R11, NR10R11 where R10 and R11 are as defined for R1; a is 1, 2 or 3; or Ra is a group of formula (ii), wherein P2 and P3 are independently phenyl, bicyclic aryl, a 5to 7-membered heterocyclic ring containing 1 to 3 heteroatoms selected from oxygen, nitrogen and sulphur, or a bicyclic heterocyclic group containing 1 to 3 heteroatoms selected from oxygen, nitrogen or sulphur; A is a bond or oxygen, S(O)m where m is 0 to 2, carbonyl, CH2 or NR4 where R4 is hydrogen or C1-6alkyl; R1 is as defined above for formula (I) or R1 is an optionally substituted 5 to 7-membered heterocyclic ring containing 1 to 3 heteroatoms selected from oxygen, nitrogen or sulphur; R2 and R3 are independently hydrogen, halogen, C1-6alkyl, C3-6cycloalkyl, C3-6cycloalkenyl, C1-6alkoxy, acyl, aryl, acyloxy, hydroxy, nitro, trifluoromethyl, cyano, CO2R10, CONR10R11, NR10R11 where R10 and R11 are as defined for R1; and a and b are independently 1, 2 or 3; Y is -NH-, NR5 where R5 is C1-6alkyl, or Y is -CH2-or -O-; V is oxygen or sulphur; D is nitrogen, carbon or a CH group; W is (CR16R17)t where t is 2, 3 or 4 and R16 and R17 are independently hydrogen or C1-6alkyl or W is (CR16R17)u-J where u is 0, 1, 2 or 3 and J is oxygen, sulphur, CR16=CR17, CR16=N, =CR16O, =CR16S or =CR16-NR17; X is nitrogen or carbon; Rb is hydrogen, halogen, hydroxy, C1-6alkyl, trifluoromethyl, C16alkoxy, C2-6alkenyl, C3-7cycloalkyl optionally substituted by C1-4alkyl, or aryl; Rc is hydrogen or C1-6alkyl; and <o>.....</o> is a single bond when X is nitrogen or a single or double bond when X is carbon.
Patent CA-2293449-A1 (CA)
Inventor: NORDEN BO
IPC: C07D271/07
Filed: 1998-06-04
Abstract: L'invention concerne de nouveaux thiazolidinediones, oxazolidinediones, dérivés d'oxazolidinediones ainsi que leur procédé de production, les préparations pharmaceutiques les contenant et l'utilisation de ces composés dans des états liés à la résistance insulinique.
Patent CA-2295197-A1 (CA)
Inventor: DEBRAAL JOHN CHARLES
IPC: B41M5/30
Filed: 2000-01-06
Abstract: The present invention is a novel thermally-responsive record material comprising a substrate having provided thereon in substantially contiguous relationship an electron donating dye precursor, an acidic developer material, a compound of the formula   wherein R1, R2 and R3 are independently selected from hydrogen, alkyl, alkoxy, aryl, aralkyl, aralkoxy, halogen, alkoxyalkoxy, and aralkoxyalkoxy; wherein R4 is independently selected from alkoxyalkyl, alkoxyalkoxy, and aralkoxyalkoxy, and a suitable binder therefor. In the context of the present invention the alkyl moieties in the alkyl, aralkyl, aralkoxy, alkoxyalkyl, alkoxyalkoxy and aralkoxyalkoxy preferably are eight carbons or less, and more preferably from one through four carbons. Substituents on aryl moieties in aryl, aralkyl, aralkoxy, and aralkoxyalkoxy groups can include hydrogen, alkyl, alkoxy and halogen. The alkyl group in these substituents also is eight carbons or less, and more preferably from one through four carbons.   The thermally responsive record material of the invention has the unexpected and remarkable properties of enhanced image intensity or density, and/or improved thermal response.
Patent CA-2295467-A1 (CA)
Inventor: GRAMMEL GERT
IPC: H04N1/32
Filed: 2000-01-14
Abstract: The object of the invention is to provide a point-to-multipoint transmission network with allocation of transmission channels. The point-to-multipoint transmission network according to the invention is characterised in particular in that each of the n transmission channels made available by the control centre (0) is freely accessible to each sub-centre (11, 12, 13, 14; 15, 16, 17, 18) and no predefined allocation of groups of transmission channels to predefined sub-centres takes place. The allocation of transmission channels to sub-centres (11, 12, 13, 14; 15, 16, 17, 18) takes place in a simple manner by checking the occupation status of a transmission channel and allocating the transmission channel if it is still free. A rigid, predetermined division of the available transmission channels into groups which can be accessed only by specific sub-centres is abandoned in favour of one single pool of transmission channels containing all the available transmission channels. This results in maximum allocation flexibility and optimal utilization of the available transmission channels.
Patent CA-2295538-A1 (CA)
Inventor: CHEN CONG-YAN
IPC: C07C15/24
Filed: 1998-05-14
Abstract: Cette invention se rapporte à un procédé servant à produire du 2,6-diméthylnaphtalène à partir de n'importe quel diméthylnaphtalène (DMN) avec un méthyle sur chaque cycle, dans un processus d'hydro-isomérisation/déshydrogénation en deux phases. Le catalyseur utilisé dans la phase d'hydro-isomérisation est un catalyseur acide, tel qu'un catalyseur à base d'aluminium de silice, avec un métal d'hydrogénation/déshydrogénation. Le catalyseur utilisé dans la phase de déshydrogénation est un catalyseur du type à reformage.
Patent CA-2297913-A1 (CA)
Inventor: BLYTHE ROBERT
IPC: E01C13/06
Filed: 1999-05-26
Abstract: Construction materials suitable for use as, or in, a wearing course for children's play areas, games areas and like purposes, comprise an agglomerate of granules of a thermoplastic elastomer. The granules of the agglomerate are conveniently held together by means of a polyurethane or other binding agent or by being melded together. The thermoplastic elastomer is, for example, a block copolymer of the styrene type, for example a styrene-butadiene-styrene block copolymer. The granules of the thermoplastic elastomer are preferably angular granules or multi-facet granules.
Patent CA-2298228-A1 (CA)
Title: Washer lid having fluid dispenser and method for using same
Inventor: SEARS JEFFREY L
IPC: D06F39/02
Filed: 2000-02-04
Abstract: A washing machine lid includes a fluid chamber on its lower surface. The fluid chamber has a fill opening and a dispensing opening. A removable valve is within the dispensing opening. The lid includes a lid frame and a housing detachably mounted to one another.
Patent CA-2300924-A1 (CA)
Title: Coupling of blends of .alpha.-olefin/vinyl aromatic monomer or hindered aliphatic vinyl monomer interpolymers with polyolefins
Inventor: TERBRUEGGEN ROBERT H
IPC: C08F8/30
Filed: 1998-08-26
Abstract: The invention includes a process of preparing a coupled polymer blend by heating an admixture containing (1) a polymer blend of (A) from 1 to 99 weight percent of one or more .alpha.-olefin/hindered vinyl monomer substantially random interpolymers, each having been made from monomer components comprising: (1) from 0.5 to 65 mole percent of either (a) at least one vinyl aromatic monomer, or (b) at least one hindered aliphatic vinyl monomer, or (c) a combination of at least one vinyl aromatic monomer and at least one hindered aliphatic vinyl monomer; and (2) from 35 to 99.5 mole percent of at least one aliphatic .alpha.-olefin having from 2 to 20 carbon atoms; and (B) from 99 to 1 weight percent of one or more homopolymers or copolymers made from monomer components comprising aliphatic .alpha.-olefins having from 2 to 20 carbon atoms, or aliphatic .alpha.-olefins having from 2 to 20 carbon atoms and containing polar groups; and (2) a coupling amount of at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide).
Patent CA-2303592-A1 (CA)
Title: Electric water heater
Inventor: THWEATT CARLISLE
IPC: F24H9/20
Filed: 2000-03-30
Abstract: An electric water heater is provided which includes a polymeric body having an elongated hollow and an inlet opening and an outlet opening in communication with the hollow for flowing water to pass therethrough. An electrical resistance heater having a heating element of a material exhibiting a positive temperature coefficient of resistance is disposed in the hollow of the polymeric body and in heat transfer communication with water flowing through the hollow. An electrical source supplies electrical power to the heating element to generate heat. A controller senses current flow through the heating element and determines a resistance related value, such as current or resistance of the heating element. The controller also determines a first derivative of the resistance related value over time, and determines a second derivative of the resistance related value over time, and controls power supply to the heating element as a function of the first and second derivatives and/or absolute resistance.
Patent CA-2305449-A1 (CA)
Title: Replica amplification of nucleic acid arrays
Inventor: CHURCH GEORGE M
IPC: C12Q1/68
Filed: 1998-08-28
Abstract: A method of producing a plurality of a nucleic acid array, comprising, in order, the steps of amplifying in situ nucleic acid molecules of a first randomly-patterned, immobilized nucleic acid array comprising a heterogeneous pool of nucleic acid molecules affixed to a support, transferring at least a subset of the nucleic acid molecules produced by such amplifying to a second support, and affixing the subset so transferred to the second support to form a second randomly-patterned, immobilized nucleic acid array, wherein the nucleic acid molecules of the second array occupy positions that correspond to those of the nucleic acid molecules form which they were amplified on the first array, so that the first array serves as a template to produce a plurality, is disclosed.
Patent CA-2305729-A1 (CA)
Inventor: BREWER MARK
IPC: A01N37/44
Filed: 1998-10-08
Abstract: La présente invention concerne l'utilisation d'un dérivé d'acide aminé sous forme d'acide ou de sel libre, dans lequel les atomes d'azote d'une ou plusieurs molécules d'acide aminé sont liées par un groupe hydrocarbyle ou hydrocarbyle substitué sous forme d'un composé anti-fongique.
Patent CA-2306087-A1 (CA)
Inventor: STARR JOHN N
IPC: C07C59/08
Filed: 1998-10-13
Abstract: The techniques for processing lactic acid/lactate salt mixtures are provided. Preferred mixtures for processing are obtained from fermentation broths, preferably from fermentation processes conducted at a pH of 4.8 or lower. The techniques generally concern the provision of separated lactic acid and lactate streams, from the mixtures. Preferred techniques of separation and processing of each of the streams are provided.
Patent CA-2306671-A1 (CA)
Inventor: YU HENRY
IPC: H02J3/01
Filed: 2000-04-18
Abstract: Magnetic type shunt harmonic filters of 3-phase type and single phase type consisting of a core and coils are applicable for 3-phase 3-wire, 3-phase 4-wire, and single phase electrical power systems regardless of the voltage level. This filter can block the power frequency currents and create a low impedance path for all harmonics when a net zero flux is produced. A negative power frequency voltage (opposed to the phase voltage) in series with phase voltage is used to block the flow of power frequency current. Power frequency voltage without harmonics is obtained by use of a power frequency filter in series with a one to one ratio transformer.      Harmonic filters for achieving less circuit impedance may omit the iron-core, but must contain an air-type or iron-core type coil working as an inductor and keep the connection the same, or omit both iron-core and coils with the negative power frequency voltages connected to phase directly. Alternatively, a single phase harmonic filter may have three legs and three coils.
Patent CA-2306997-A1 (CA)
Inventor: ACOSTA AGUSTIN JR
IPC: E05B47/00
Filed: 2000-04-28
Abstract: A locking device for an electronic lock-set includes an electronically controlled motor that reciprocates a locking dog between door locking and unlocking positions upon appropriate electronic access by a user -- such as by inserting an appropriate electronic key or another electronic access element, etc. The motor rotates a threaded shaft shat, in turn, reciprocates the locking dog. The motor is electronically controlled to cause the locking dog to reciprocate along the threaded shaft, while either: a) at least one spring absorbs energy that may be applied by external forces that may cause the locking dog to become locked at a particular position; and/or b) an electronic detection is made as to whether external binding forces exist and operation of the motor is controlled based on that detection.
Patent CA-2310743-A1 (CA)
Title: Extrusion process for enhancing the melt strength of polypropylene
Inventor: SPIJKERMAN GEESJE KLASINA
IPC: C08F10/06
Filed: 1998-11-04
Abstract: The invention relates to a process for enhancing the melt strength of polypropylene comprising the steps of: mixing the polypropylene with at least one peroxydicarbonate; reacting said polypropylene and peroxydicarbonate at a temperature between 150 ~C and 300 ~C, with the proviso that the peroxydicarbonate is not in the form of an aqueous dispersion.
Patent CA-2312796-A1 (CA)
Title: Polyurethanes en phase aqueuse a liaisons uree-ethane
Inventor: RAMALINGAM BALASUBRAMANIAM
IPC: C08G18/00
Filed: 1998-12-04
Abstract: L'invention concerne des polyuréthanes en phase aqueuse possédant des liaisons urée-éthane qui ne sont dissociées par l'intervention d'aucun atome de carbone, susceptibles d'être obtenues par le biais d'une hydroxylamine tenant lieu d'allongeur de chaîne. On établit une réaction entre un prépolymère à terminaison isocyanate qui comporte des groupes ionisés ou facilement ionisables, d'une part, et NH¿2?OH, d'autre part, pour constituer un polyuréthane possédant des liaisons urée-éthane, selon la formule (I). Les polyuréthanes en question sont utiles dans les formulations pour adhésif, revêtement et encre ainsi que dans l'industrie des emballages souples.
Patent CA-2314011-A1 (CA)
Title: Method and device for change of section of a billet of a continuous casting plant during continuous casting
Inventor: WEYER AXEL
IPC: B22D11/12
Filed: 2000-07-17
Abstract: In a method for changing the section of a billet of a continuous casting plant during continuous casting, wherein opposed sides of the billet are in contact with oppositely positioned roll supports arranged below a continuous casting die, wherein the roll supports are comprised of segments having rolls, wherein adjoining ones of the segments of each roll support are connected to one another by a jointed connection and wherein each segment is configured to be adjustable independent of the other segments with respect to an angular position relative to the billet, and wherein in an initial position the segments of the roll supports are adjusted to a uniform billet section, a thickness reduction can be achieved by advancing sequentially in a direction of continuous casting the segments toward the billet by moving the jointed connections toward the billet in a controlled sequence of adjusting steps or a thickness increase can be achieved by moving sequentially in a direction of continuous casting the segments away from the billet by moving the jointed connections away from the billet in a controlled sequence of adjusting steps.
Patent CA-2315490-A1 (CA)
Inventor: DESJARDINS RAY
IPC: A61B17/00
Filed: 2000-08-11
Abstract: There is described an improved bone plate comprising implant human bone and bioabsorbable polymer.
Patent CA-2316786-A1 (CA)
Inventor: WEN XIN
IPC: G07B17/00
Filed: 2000-08-28
Abstract: A digital printing apparatus is disclosed for printing on a receiver a postal image having invisible embedded information in response to a digital image having a plurality of pixels each having at least one pixel value and input information to embedded. The digital printing apparatus receives the digital image and the input information. The receiver includes a plurality of perforated peelable portions or a mailing envelope. The apparatus responds to the input information and the digital image for modifying a predetermined number of pixel values of pixels in the digital image with the input information so that the input information is embedded in the digital image and prints a postal stamp image on the receiver in accordance with the modified digital image having the embedded information wherein the embedded information is invisible to unaided human eyes that can subsequently be extracted.
Patent CA-2318979-A1 (CA)
Inventor: NICOLETTE CHARLES A
IPC: C12Q1/68
Filed: 1999-01-25
Abstract: The present invention provides methods for identifying antigens recognized by immune effector cells. In one embodiment, the methods combine identifying amino acid sequence motifs of such antigens and the DNA sequences that potentially encode the identified amino acid motifs and the DNA sequences which are aberrantly expressed in the cells. By comparison of these sequences, novel antigens that are recognized by immune effector cells are identified.
Patent CA-2319307-A1 (CA)
Title: Polyesteramide, its preparation and surgical devices fabricated therefrom
Inventor: JIANG YING
IPC: A61L17/10
Filed: 1998-01-27
Abstract: Degradable polyesteramide suitable for use in biomedical applications is obtained by reacting diamino alkyl ester with alpha hydroxy acid to form diamide- diol which is reacted with acyl halide or dicarboxylic acid to yield polyesteramide.
Patent CA-2324923-A1 (CA)
Title: Catalyst for the production of .alpha.-olefin and .alpha.-olefin production method
Inventor: KURAMOTO MASAHIKO
IPC: B01J21/06
Filed: 2000-01-07
Abstract: Catalysts which can have high activity in the oligomerization of ethylene and processes for producing an .alpha.-olefin which comprise using the catalysts to conduct ethylene oligomerization. One of the catalysts for producing an .alpha.-olefin through ethylene oligomerization is obtained by contacting (a) a clay, clay mineral, or lamellar ion-exchanging compound with (b-1) a complex of a transition metal in Groups 4 to 6 of the Periodic Table; and one of the processes comprises using this catalyst to conduct ethylene oligomerization. The other catalyst is obtained by contacting (a) a clay, clay mineral, or lamellar ion-exchanging compound with (b-2) a complex of a transition metal in Groups 8 to 10 of the Periodic Table; and the other process comprises using this catalyst to conduct ethylene oligomerization.
Patent CA-2326997-A1 (CA)
Title: Infrastructure de securite pour transactions electroniques
Inventor: MUFTIC SEAD
IPC: H04L9/32
Filed: 1998-04-02
Abstract: L'invention concerne une pluralité de pouvoirs de certification connectés à un réseau ouvert qui sont interconnectés via un système d'authentification et de certification permettant d'assurer et de gérer des certificats de clé publique. Ce système de certification présentant des certifications multiples et ayant sa propre politique forme une infrastructure de clé publique facilitant des opérations sûres et authentifiées dans un réseau peu sûr. Des services de sécurité destinés aux applications et aux utilisateurs du réseau sont offerts par un ensemble de fonctions de certifications communes accessibles par une interface de programme d'application bien définie qui permet la mise au point d'applications indépendantes des plates-formes matérielles intrinsèques, des réseaux et des protocoles de communication, ainsi que des technologies de sécurité.