baber/WOPTO huggingface dataset:
Patent CA-2230637-A1 (CA)
Inventor: EVANS RONALD M
IPC: C12Q1/68
Filed: 1996-07-24
Abstract: The retinoid X receptor (RXR) participates in a wide array of hormonal signaling pathways either as a homodimer or as a heterodimer with other members of the steroid/thyroid hormone superfamily of receptors. In accordance with the present invention, the ligand-dependent transactivation function of RXR has been characterized and the ability of RXR to interact with components of the basal transcription machinery has been examined. In vivo and in vitro experiments indicate the RXR ligand binding domain makes a direct, specific and ligand-dependent contact with a highly conserved region of the TATA binding protein (TBP). The ability of mutations that reduce ligand-dependent transcription by RXR to disrupt the RXR-TBP interaction in vivo and in vitro suggests that RXR makes direct contact with the basal transcription machinery in order to achieve activation.
Patent CA-2230806-A1 (CA)
Inventor: HENZE MICHAEL
IPC: B29C65/52
Filed: 1998-02-27
Abstract: In the manufacture of a tube for lining pipelines and sewer systems from fiber materials which can be impregnated with a curable resin, the margins (6a, 6b) of fiber strips (6, 19) on the circumference of the tube are provided with at least one tightly bonded overlap area (7a, 7b) running lengthwise. To achieve a stable and elastic foreproduct for impregnation with resin, a) elastically expandable fiber materials are used for the fiber strips (6, 19),b) the margins (6a, 6b) of the fiber strips (6, 19) are bonded irreversibly to one another by a thermal process, by either b1) placing a curable resin between the margins (6a, 6b) and curing it by actinic radiation, or b2) the fiber materials are bonded to one another in the overlap area (7a, 7b) by superficial fusion and pressure. In this case the fiber materials have differentmelting temperatures on opposite faces and are heated at their surfaces in contact to a temperature that is between the melting temperatures of the two fiber materials.
Patent CA-2231608-A1 (CA)
Inventor: SAKER STEPHAN ARNE
IPC: F16C9/04
Filed: 1998-03-09
Abstract: A motorcycle flywheel assembly which includes a fork rod and a blade rod are positioned on a common crank pin. The crank pin has threaded nut bearing end portions, non-tapered cylindrical portions adjacent the nut bearing end portion, and a central bearing surface portion. A shoulder is defined where the cylindrical portion steps down from the central bearing surface portion. The cylindrical portions of the crank pin are positioned in crank pin receiving openings of flywheels in interference fit relation with the shoulder defined where the cylindrical portion steps down from the central bearing surface portion. engaging first face of each flywheel, thereby precluding flexing movement of the crank pin.
Patent CA-2231713-A1 (CA)
Title: Improved keyboard support mechanism
Inventor: KING ROBERT
IPC: A47B21/03
Filed: 1998-03-11
Abstract: A keyboard support mechanism containing a novel articulating arm mechanism for permitting vertical movement of the keyboard shelf. The articulating arm mechanism has six major components: (1) a mounting bracket, (2) a mounting bracket support in combination with a swivel bracket, (3) a shelf bracket, (4) an upper arm, (5) at least one side arm, and (6) at least one stopping means. The upper arm links the shelf bracket and the mounting bracket; the side arm and the stopping means cooperate to keep the shelf bracket (and hence the keyboard shelf) at a constant angle relative to the ground.
Patent CA-2232193-A1 (CA)
Title: Adn codant des proteines medicinales
Inventor: BASINSKI MARGRET BARBARA
IPC: A61P3/00
Filed: 1996-09-16
Abstract: La présente invention concerne des séquences d'acide nucléique qui codent des protéines utiles en médecine, elle concerne des formulations pharmaceutiques et des procédés d'expression de ces protéines. En particulier, l'invention concerne des séquences d'ADNc de protéine leptine de primates supérieurs, de même que les protéines exprimées.
Patent CA-2233156-A1 (CA)
Title: Novel oxidising composition and novel method for perming or bleaching hair
Inventor: BRAIDA-VALERIO DAMARYS
IPC: A61K8/68
Filed: 1996-10-21
Abstract: A novel oxidising composition for perming or bleaching hair, including a cosmetically suitable carrier containing at least one ceramide-type compound and at least one oxidising agent, is disclosed. Novel methods for perming or bleaching hair by means of the above oxidising composition are also disclosed.
Patent CA-2234174-A1 (CA)
Inventor: SYDANSK ROBERT D
IPC: C09K8/518
Filed: 1996-10-15
Abstract: L'invention concerne un gel mousseux pouvant être utilisé comme fluide de complétion, de reconditionnement et de destruction, destiné à la complétion et au reconditionnement de puits, ainsi qu'aux autres opérations où il est souhaitable de tuer un puits.
Patent CA-2238827-A1 (CA)
Title: Forming contacts on semiconductor substrates for radiation detectors and imaging devices
Inventor: SCHULMAN TOM GUNNAR
IPC: H01L31/0224
Filed: 1996-11-26
Abstract: A method, suitable for forming metal contacts (31) on a semiconductor substrate (1) at positions for defining radiation detector cells, includes the steps of forming one or more layers of material (11, 12) on a surface of the substrate with openings (23) to the substrate surface at the contact positions; forming a layer of metal (24) over the layer(s) of material and the openings; and removing metal at (28) overlying the layer(s) of material to separate individual contacts. Optionally, a passivation layer (11) to be left between individual contacts on the substrate surface, may be applied during the method. A method according to the invention prevents etchants used for removing unwanted gold (or other contact matter) coming into contact with the surface of the substrate (e.g. CdZnTe) and causing degradation of the resistive properties of that substrate. The product of the method and uses thereof are also described.
Patent CA-2241749-A1 (CA)
Title: Fold structure of corrugated fiberboard
Inventor: YOKOYAMA YOSHIMASA
IPC: B31F1/00
Filed: 1996-12-27
Abstract: A fold construction of a corrugated fiberboard, in which V-shaped folds (12) are formed on a corrugated fiberboard sheet (1) to permit the corrugated fiberboard sheet (1) to be folded into V-shape so as to cross steps (10) at a right angle or other angles than the right angle. The V-shaped folds (12) comprise cuts (12a) of a predetermined length alternately formed along a direction of the folds and extending through the corrugated fiberboard sheet (1), and hinged portions (12b) of a predetermined length formed by compressing the step (10). Formed on one side of both ends of the respective cuts (12a) are auxiliary cuts (12c) which are in the form of a hook to be convex toward the adjacent hinged portions (12b) and extend through the corrugated fiberboard sheet (1). When inverted V-shaped folds and V-shaped folds are to be formed on the corrugated fiberboard sheet, they can be formed by the same die cutter in a single process, and the corrugated fiberboard sheet can be precisely and smoothly bent along the folds.
Patent CA-2242106-A1 (CA)
Inventor: WINTERS WILLIAM J
IPC: B22D41/08
Filed: 1997-01-10
Abstract: A ladle brick leveling set (20, 21) for high temperature molten metal ladles in which specially shaped refractory bricks are disposed in a slightly sloping geometrical configuration so as to compensate for a sloping bottom (19) of a high temperature molten metal ladle (11). The bricks are disposed in two partial rings (20, 21) each of which is essentially a mirror image of the other so that the height of the leveling set (20, 21) varies substantially uniformly from a high point where the two mirror image portions join (26a, 26b) to a low point 180 degrees of arc displaced therefrom, where the two portions again join (25a, 25b). Each of the refractory bricks has a slight taper in height so that the ends of each brick are the same height as the juxtaposed ends of the adjoining bricks.
Patent CA-2242853-A1 (CA)
Title: High powered laser diode
Inventor: OSKARSSON VILHELM
IPC: H01S5/022
Filed: 1998-07-09
Abstract: A method of reducing the amount of unwanted radiation emitted from a semiconductor laser device involves coating a transparent portion the device intended to transmit radiation with a partially reflective layer. The transparent portion is typically the lens cap.
Patent CA-2242868-A1 (CA)
Inventor: MUNK CLAYTON L
IPC: B64F5/10
Filed: 1997-03-21
Abstract: A method and apparatus for manufacturing wings is disclosed. The apparatus includes a fixture (42) that holds wing panels (30, 32) for drilling and edge trimming by accurate numerically controlled machine tools (40). The method includes attaching spars (34, 36) to the wing panels (30, 32) using coordination holes to locate the spars (34, 36) accurately on the wing panels (30, 32) in accordance with an original engineering design, and also attaching in-spar ribs (38) to rib posts (204) on the spars (34, 36) using accurately drilled coordination holes in the ends of the ribs (214) and in the rib posts (204). The method further includes determining the wing contour by the configuration of the spars (34, 36) and ribs (38).
Patent CA-2243973-A1 (CA)
Inventor: KARGER BARRY L
IPC: H01J49/04
Filed: 1997-01-17
Abstract: A subatmospheric, variable pressure sample delivery chamber (2), useful as an electrospray ionization device for introducing a sample into a mass spectrometer (9) or as a sample delivery device for delivery of a sample to a collection device (74) at subatmospheric pressures, is disclosed. The sample delivery chamber (2) is configured to maintain an operating pressure between 1 and 750 Torr, preferably between 50 and 700 Torr. The chamber has an inlet port (4) for introduction of a gas and an exit port (6) capable of being coupled either to a sampling orifice (8) for an analytical device, usually a mass spectrometer (9), or directly to a pump for removal of gas. A sample delivery device (22) extends from outside the chamber into the interior of the chamber (2). The inlet end (12) of the sample delivey device is capable of receiving a sample and the exit end of the sample delivery device (14) is aligned with the exit port (6) of the chamber, if the sample is to be delivered to an external analytical device, or aligned with the collection device (74), for direct collection of the sample.
Patent CA-2244581-A1 (CA)
Title: Apparatus for manufacturing injection-moulded articles from at least two plastic melts
Inventor: NESCH WOLFGANG
IPC: B29C45/16
Filed: 1998-08-04
Abstract: An injection molding apparatus capable of producing injection molded articles from at least two plastic melts, includes an additional mold mounting device between a fixed mold mounting plate and a movable mold mounting plate that is traversed along four essentially horizontal tie rods. The additional mold mounting device is also pivotable around a rotational axis aligned perpendicular to the longitudinal axis of the tie rods, and carries additional mold halves that cooperate with the mold halves mounted on the mold mounting plates on at least two side surfaces that are aligned with a spacing parallel to each other and relative to the rotational axis. The additional mold mounting device comprises upper and lower support blocks that are arranged at a spacing relative to each other in an essentially vertically aligned plane, with each support block being guided on at least of the two tie rods. A friction or pivot bearing is provided for vertically aligned pivots of a prismatic mold core support. The additional mold mounting device further includes at least two drive devices to change the relative spacing between the mold mounting plates and the support blocks.
Patent CA-2244942-A1 (CA)
Title: Electric safety valve actuator
Inventor: RAWSON MICHAEL S
IPC: E21B34/06
Filed: 1997-12-09
Abstract: An electric safety valve actuator for a surface controlled subsurface safety valve. The actuator includes a motor drive and driver (36) selectively coupled with a drive yoke (32) connected to an otherwise conventional flow tube (12) of a downhole safety valve (24). Various solenoid actuated yoke engagement apparati are disclosed.
Patent CA-2246301-A1 (CA)
Title: Method for server-authorised service access from portable electronic microcircuit devices such as smart cards
Inventor: COLNOT CEDRIC
IPC: G07C9/00
Filed: 1997-02-13
Abstract: A method for server-authorised service access from portable electronic microcircuit devices such as smart cards is disclosed. According to the method, when access is requested, the portable device transmits at least one identification sequence containing at least the value of a ciphertext (C¿i?) produced by executing an iterative algorithm (A2) based on a non-reversible secret-key function (F2), and the server computes a series of ciphertexts (Q¿1?, Q¿2?, ...) from one ciphertext (Q¿0?) using the same algorithm (A2) until a ciphertext (Q¿n?) is found that has the same value as said ciphertext (C¿i?), whereafter access is enabled. The method is particularly suitable for home banking applications.
Patent CA-2246954-A1 (CA)
Inventor: MAKIYAMA JOJI
IPC: H04B1/04
Filed: 1998-09-10
Abstract: A signal distributing/synthesizing apparatus includes a 4-terminal hybrid circuit, first and second antennas, a pseudo-antenna, and first to third 4-terminal switches.  The 4-terminal hybrid circuit distributes the signal input to the first terminal to the second and third terminals, and synthesizes the signals input to the second and third terminals into a signal to be output to the first terminal.  The first and second antennas form a radio transmission channel for an output signal from the signal 4-terminal hybrid circuit.  The pseudo-antenna forms a pseudo-radio transmission channel for an output signal from the 4-terminal hybrid circuit.  The first switch complementarily switches/connects a first broadcasting unit and the first antenna to the first terminal of the 4-terminal hybrid circuit and the third switch.  The second switch complementarily switches/connects a second broadcasting unit and the second antenna to the second terminal of the 4-terminal hybrid circuit and the third switch.  The third switch complementarily switches/connects the pseudo-antenna and the third terminal of the 4-terminal hybrid circuit to the first and second switches.
Patent CA-2249393-A1 (CA)
Title: Methods of isolating biological target materials using silica magnetic particles
Inventor: YORK CHARLES K
IPC: C12Q1/68
Filed: 1998-01-21
Abstract: The present invention provides methods for isolating biological target materials, particularly nucleic acids, such as DNA or RNA or hybrid molecules of DNA and RNA, from other substances in a medium using silica magnetic particles. The methods of the present invention involve forming a complex of the silica magnetic particles and the biological target material in a mixture of the medium and particles, separating the complex from the mixture using external magnetic force, and eluting the biological target material from the complex. The preferred embodiments of magnetic silica particles used in the methods and kits of the present invention are capable of forming a complex with at least 2 µg of biological target material per milligram of particle, and of releasing at least 60 % of the material from the complex in the elution step of the method. The methods of the present invention produce isolated biological target material which is substantially free of contaminants, such as metals or macromolecular substances, which can interfere with further processing or analysis, if present.
Patent CA-2249981-A1 (CA)
Title: Channel estimation arrangement
Inventor: BOTTOMLEY GREGORY E
IPC: H04B7/005
Filed: 1997-03-28
Abstract: Channel estimation is performed by decomposing the intersymbol interference into a component due to transmission apparatus and a component due to the channel. Several channel estimates are made, and the best is chosen, based on the correlation of synchronisation symbols with local replicas.
Patent CA-2254557-A1 (CA)
Title: Synthesis of long-wavelength absorbing photosensitizers
Inventor: JOHNSON CLAIRE K
IPC: C07D471/22
Filed: 1998-11-20
Abstract: The present invention provides for novel therapeutic macrocycle compounds useful in photodynamic therapy that are based on the chlorin ring system. The macrocycle compounds have, in many cases, wavelengths of activation at about nm, characteristic of chlorins, and are stabilized against oxidation by the attachment to the chlorin ring of a structure that comprises one or more exocyclic rings that contribute at least one nitrogen atom. Protonation or covalent modification of this nitrogen atom, or other covalent modification of the one or more exocyclic rings permits optimization of pharmacologically relevant properties including, for example, solubility. Representative chlorins include the pyridochlorins depicted as follows
Patent CA-2259342-A1 (CA)
Title: A cleaning method and apparatus
Inventor: TYLER JEAN
IPC: A47L11/34
Filed: 1997-07-01
Abstract: Gum is removed by directing a steam jet (11) at an individual piece of gum (2) at a pressure sufficient to penetrate the gum. The steam temperature is sufficient to cause disintegration of the gum by the moistening effect of the steam. The gum disintegrates into particles (15) which can easily be swept up or removed by suction afterwards.
Patent CA-2261830-A1 (CA)
Title: Service control and management system
Inventor: FERRARIS CLAUDE
IPC: G06Q30/00
Filed: 1997-07-17
Abstract: Service control and management systems, and particularly a system for managing service provision on an hourly basis, are disclosed. The system includes smart cards issued to service recipients and/or individual service providers, smart card readers provided at the locations where services are provided for use at that time, and a host capable of communicating with said readers. Each reader comprises means for initiating a service provision transaction when a recipient card and/or provider card is inserted, means for resetting the service timer for the time between initiation of the transaction and the completion of the service, means for periodically recording service provision data in a non-volatile memory, and means for transmitting said data to the host. The system is useful for service provision management.
Patent CA-2261838-A1 (CA)
Title: Method for mounting encapsulated body on mounting board and optical converter
Inventor: HASHIMOTO NOBUAKI
IPC: H01L21/60
Filed: 1997-07-03
Abstract: A novel technique of easily and inexpensively mounting an optical converter and semiconductor devices on a printed wiring board at a high density. Before an encapsulated body is mounted on a printed wiring board (400), an opening (340) is made in the board, and conductive bonding portions (360b) are provided on the base member (100). The body is bonded face-down. At least part of the body is fitted in the opening (340), and therefore the height of the body from the surface of the board is small, permitting the face-down bonding.
Patent CA-2263482-A1 (CA)
Title: Method for marker-free repetitive dna expression cassette exchange in the genome of cells or parts of cells
Inventor: SEIBLER JOST
IPC: C12N5/10
Filed: 1999-02-25
Abstract: The invention relates to a method for marker-free repetitive DNA expression cassette exchange in the genome of cells or parts of cells by using the FLP recombinase mediated cassette exchange. In a first step a first DNA expression cassette carrying a positive-negative selection marker flanked by a wild type FLP recombinase recognition target (FRT) site on one end and a modified heterospecific FRT on the other end is integrated into a chromosomal locus of the genome for tagging.      Following selection of cell clones surviving the conditions for positive selection said first DNA cassette as a second step is exchanged by an incoming second DNA expression cassette located on a circular vector and carrying a homologous or heterologous gene (transgene) of any coding sequence flanked by the same FRT sites as the first DNA cassette by using FLP-recombinase. The cell clones surviving the conditions for negative selection contain specifically inserted the gene of the incoming DNA cassette without inserted unwanted vector sequences or positive selectable markers.
Patent CA-2264418-A1 (CA)
Title: Removal of carbon dioxide from gas streams
Inventor: BALSE VIJAY R
IPC: B01D53/26
Filed: 1999-03-04
Abstract: Carbon dioxide is removed from gas streams comprised predominantly of gases that are less strongly adsorbed than is carbon dioxide by passing the gas stream through a bed of type X zeolite having a silicon to aluminum atomic ratio not greater than about 1.15 and at least 75% of the exchangeable cations of which are potassium ions, thereby adsorbing the carbon dioxide from the gas stream.    The process is particularly advantageous when applied to the removal of low levels of carbon dioxide from gas streams at temperatures of about 0 to 80°C.
Patent CA-2266102-A1 (CA)
Title: Bearing having micropores, and design method thereof
Inventor: ETSION IZHAK
IPC: B23K26/00
Filed: 1997-09-22
Abstract: A method for designing bearings, of improved performance, the load-bearing surfaces of which feature micropores (20, 22) about 2 to 10 microns deep and, preferably, aspect ratios on the order of 7 to 20. The hydrodynamic pressure distribution of a suite of bearing surfaces with different micropore geometries and densities is modeled numerically. The load-bearing surfaces of the bearings (13) are fabricated with micropores having the optimal density and geometry determined by the numerical modeling. Conical micropores (20, 22) may be created by single laser pulses, with the pore size and shape controlled by controlling the laser beam profile, the laser beam power, and the optical parameters of the focusing system.
Patent CA-2266159-A1 (CA)
Inventor: BARR ROBERT
IPC: H05K3/00
Filed: 1999-03-18
Abstract: The invention provides a negative-acting photoimageable composition comprising A) between about 30 and about 80 wt% based on total weight of A) plus B) of a binder polymer having acid functionality sufficient to render said photoimageable composition developable in alkaline aqueous solution, B) between about 20 and about 70 wt% based on total weight of A) plus B) of an addition-polymerizeable, non-gaseous .alpha.,.beta.-ethylenically unsaturated compound(s) capable of forming a high polymer by free-radical initiated chain-propagating addition polymerization, at least about 50 mole percent of the a,p-ethylenically unsaturated moieties of B) being methacrylic moieties, and C) between about 0.1 and about 20 wt% based on total weigh of A) plus B) of a photoinitiator chemical system. Photopolymerizable component B  comprises, at between about 1 and about 70 wt.% relative to total of A) plus B), a urethane oligomer having, in addition to .alpha.,.beta.-ethylenic unsaturation, carboxylic acid functionality.
Patent CA-2267305-A1 (CA)
Title: Topical products as prophylactic or curative agents for bacterial skin infections
Inventor: LANG SIEGFRIED
IPC: A61K47/48
Filed: 1997-09-26
Abstract: The present invention relates to topical products intended for use as prophylactic or curative agents for bacterial skin infections, containing at least one polymeric complex substantially consisting of hydrogen peroxide, a suitable polymer for the complex formation thereof, possibly another bactericidal compound and possibly a metal salt or a metal colloid.