baber/WOPTO huggingface dataset:
Patent CA-2115881-C (CA)
Title: Non-chlorine bleaching of kraft pulp
Inventor: PAICE MICHAEL G
IPC: D21C5/00
Filed: 1994-02-17
Granted: 2000-05-23
Abstract: The present invention relates to a process for the bleaching of kraft pulps with non-chlorine chemicals, employing a sequential reaction of oxidative enzymes and hydrogen peroxide. The kraft pulp can be from conventional or extended pulping, or from an oxygen delignification step. The enzyme reaction is monitored by methanol release which results from the demethylation of lignin. The process of the present invention essentially comprises three steps. The first step is the oxidation of kraft pulp either with manganese peroxidase enzyme in the presence of Mn(II) salts, hydrogen peroxide and chelator, or with laccase enzyme preferably in the presence of 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), or a combination of both enzymes in a crude mixture as typically produced by certain fungi. The Mn(II) salts and chelator may already be present in sufficient amount in the pulp. This first step is performed at an acidic pH, and moderate temperatures for a period of time between 30 and 240 minutes. The two subsequent steps are the removal of metals from the pulp and the alkaline hydrogen peroxide treatment. These steps are performed under standard conditions as known by those skilled in the art. The resulting pulp is surprisingly brighter and of lower lignin content than would be obtained without the enzyme treatment.
Patent CA-2116582-C (CA)
Title: Rf amplifier bias control method and apparatus
Inventor: SOLIDAY JOHN L
IPC: H03F1/02
Filed: 1993-06-14
Granted: 1997-08-26
Abstract: A bias control circuit (100) for use with an RF amplifier (102) comprises a detector (112) coupled to the RF amplifier (102) for detecting a signal proportional to the RF amplifier's output signal power level (POUT), a comparator (106), coupled to the detector (112) for comparing the detected signal to a reference (Vref), and an adjustment circuit (108), coupled to the comparator (106) and the RF amplifier (102), for adjusting the amplifier's bias voltage (Vbias) as a function of the comparison in order to control the RF amplifier's quiescent operating point (bias current) and thereby optimize the RF amplifier's operation for selected operating performance characteristics like gain performance, intermodulation performance, and efficiency. In accordance with another embodiment (200), the RF amplifier's quiescent operating point is adjusted as a function of the current drawn by the RF amplifier (202). In accordance with yet another embodiment (300), the RF amplifier's quiescent operating point is adjusted as a function of the RF amplifier's (302) detected input power level (PIN).
Patent CA-2123101-C (CA)
Title: Nitroxyalkylamide derivative
Inventor: ISHIHARA SADAO
IPC: C07D333/38
Filed: 1992-11-02
Granted: 2001-10-30
Abstract: Nitroxyalkylamide derivatives having the general formula:        R1 - (A)n-CONH-B-ONO2               (I) wherein:      R1 represents an optionally substituted heterocyclic, heterocyclic-oxy, aryloxy or arylthio group;      A represents a C1-C4 alkylene group;      B represents a C1-C4 alkylene group; and n is 0 or 1.        The compounds of the present invention have an excellent vasodilator action for collateral vessels and an anti-anginal action, and are useful as therapeutic agents for angina pectoris.
Patent CA-2125449-C (CA)
Title: Vector and mammalian cell line having improved productivity
Inventor: CHAN SHAM-YUEN
IPC: C12Q1/04
Filed: 1994-06-08
Granted: 2010-02-23
Abstract: An improved vector for introducing a DNA coding sequence for a heterologous protein into a mammalian cell line to increase protein expression. The vector comprises a cDNA protein coding sequence, a first promoter and a downstream donor intron, the first promoter and downstream donor intron being located between a second promoter and a donor intron acceptor. In an illustrative example, the sequence codes for Factor VIII and high productivity of a transfected cell line is assured by establishing a minimum amplifiability index which, contrary to current practice, focuses on using cell lines having relatively low productivity prior to amplification.
Patent CA-2125481-C (CA)
Inventor: BOYER CHARLES E III
IPC: A61L15/00
Filed: 1992-09-24
Granted: 1999-07-13
Abstract: Structure (10) de couche comprenant une bande (11) poreuse de renforcement externe située sur la partie avant de la surface externe de la couche (10), ladite bande (11) constituant un renforcement contre lequel se colle une patte (4) de fixation adhésive et une surface d'adhérence tolérant la contamination par les huiles ou les matières grasses (crèmes, pommades, etc.).
Patent CA-2131104-C (CA)
Title: Signal processing device having pll circuits
Inventor: TAMAMURA MASAYA
IPC: H03L7/07
Filed: 1994-08-30
Granted: 1999-02-23
Abstract: A signal processing device includes a first PLL circuit operating in synchronism with a serial input data signal, and a second PLL circuit operating in synchronism with an external reference clock signal. The oscillation frequency of the first PLL circuit is controlled by the second PLL circuit.
Patent CA-2135083-C (CA)
Title: Antibodies to p-selectin and their uses
Inventor: CHESTNUT ROBERT W
IPC: C12P21/08
Filed: 1993-05-04
Granted: 2004-01-06
Abstract: The present invention relates to compositions and methods for treating inflammation and other pathological conditions us-ing novel blocking P-selectin antibodies which inhibit binding of an antibody secreted by a cell line designated ATCC Accession No. HB11041 to P-selectin as measured by a competitive inhibition assay.
Patent CA-2137037-C (CA)
Inventor: BANKS RONALD E
IPC: C07C43/225
Filed: 1994-11-30
Granted: 1997-10-21
Abstract: Nouveaux dérivés de diazabicycloalcane N,N'-difluorés, utiles comme agents de fluoration électrophiles; méthodes pour préparer ces dérivés et les utiliser comme agents de fluoration. L'invention présente également de nouveaux intermédiaires de produits d'addition d'acide de Lewis et d'azaazoniabicycloalcane N-fluoré, qui se forment lors de la préparation desdits dérivés.
Patent CA-2137948-C (CA)
Title: Synchronizer with self-energizing
Inventor: BRAUN EUGENE RALPH
IPC: F16D23/06
Filed: 1994-12-13
Granted: 2000-02-01
Abstract: A baulkring-type synchronizer mechanism (18) includes cone clutch friction surfaces (24,48 and 26,50) and sets jaw clutch teeth (58,28 and 60,30) for frictionally synchronizing and positive connecting gears (14,16) to a shaft (12). Blocker teeth on baulkrings (40,42) prevent asynchronous engagement of the jaw clutch teeth and transmit operator shift forces (F o) from a shift sleeve (34) to the cone clutches. Angled self-energizing surfaces (72a,72b,74a,74b) are affixed to an outer circumference of a hub (32) and engage angled self-energizing surfaces (76a,76b,76c,76d) affixed to a shift sleeve (34) to provide an additive force (F a) that is transmitted via the blocker teeth to the cone clutches. The jaw clutch teeth include axially movable first and second sets of teeth (58,60) defined by the shift sleeve (34) and axially fixed sets of teeth (28,30) secured to the gears. When the sleeve is in a neutral position, the first and second sets of the teeth (58,60) are loosely disposed respectively in portions of grooves in hub (32). When one of the first and second sets of teeth (58,60) are engaged with one of the fixed sets of teeth, the other of the first and second sets is closely received in a portion of its associated groove.
Patent CA-2139196-C (CA)
Title: Expandable stents and method for making same
Inventor: LAM SHARON S
IPC: A61F2/91
Filed: 1994-12-28
Granted: 1999-02-23
Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery.  The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting members placed so as to limit longitudinal contraction during radial expansion.   The individual radially expandable cylindrical elements are formed in an irregular serpentine pattern designed to expand evenly under radial stress, and maximize the overall radial expansion ratio.
Patent CA-2140794-C (CA)
Inventor: ALBARELLA JAMES
IPC: G01N33/52
Filed: 1995-01-23
Granted: 2002-04-02
Abstract: The detection of protein is accomplished using novel composition and method involving phenolsulfonephthalein protein error indicator, buffer and an aliphatic ether-polycarbonate present in an amount equal to or less than ten percent by weight.
Patent CA-2144793-C (CA)
Inventor: O'GORMAN LAWRENCE PATRICK
IPC: G06V30/162
Filed: 1995-03-16
Granted: 1999-01-12
Abstract: A method of multithresholding a document image considers both local and global information in determining the number of thresholded levels contained in a gray-scale image. A gray-scale image is comprised of a plurality of pixels. Each pixel has an intensity value. Local regions of pixels having similar intensity values are identified and compiled into a global representation of the image. Intensityranges are identified in the global representation in which the intensity values of the pixel are approximately constant. An intensity value is identified within each range which represents the most constant point within the representation range. The number of threshold levels is set equal to the number of ranges in the representation.
Patent CA-2146953-C (CA)
Title: Closure gate
Inventor: BENNETT COLIN W
IPC: F16K3/30
Filed: 1995-04-12
Granted: 2001-05-08
Abstract: A gate to block fluid flow in a large conduit with the packing provided by fire hose or other tube extending though a U-shaped channel along the interface of the gate and the conduit surface.  The tube can be a plain tube retained in the channel by retaining members attached to sides of the channel.
Patent CA-2149263-C (CA)
Inventor: BODEEP GEORGE E
IPC: H04N7/173
Filed: 1995-05-12
Granted: 1999-01-26
Abstract: A communication network (e.g., a coax network or an optical fiber network) comprises a signal distribution network (e.g., fiber node FN) for transmitting communication signals downstream over a first communication path to a plurality of end user apparatuses connected thereto. At least one end user apparatus is arranged for sending the return signals downstream over at least part of the first communication path to a converter apparatus which collects the return signals and converts them to an upstream signal for transmission over a second separate communication path to the distribution unit.
Patent CA-2152064-C (CA)
Inventor: SCHMITT GUNTER
IPC: C08L33/00
Filed: 1994-10-14
Granted: 2006-08-15
Abstract: L'invention concerne un procédé de production de dispersions polymères peu visqueuses solubles dans l'eau, à base aqueuse à forte concentration en principe actif, contenant un polymérisat (A), composé de monomères solubles dans l'eau, de monomères hydrophobes et éventuellement de monomères amphiphiles, ledit polymérisat (A) ayant un poids moléculaire moyen Mw d'au moins 5 x 10<5> Dalton et contenant au moins un agent dispersant (D) polymère. Dans une première étape, un dispersion aqueuse (PD) est produite à partir du polymérisat (A) et d'au moins un agent dispersant (D) polymère. Dans une deuxième étape, une dispersion (PD') aqueuse fortement concentrée est produite à partir de la dispersion (PD), par retrait de l'eau. Dans une troisième étape, une dispersion (PD'') aqueuse à forte teneur en principe actif est produite par adjonction d'une dispersion aqueuse d'au moins un agent dispersant (D) polymère à la dispersion concentrée (PD'). La deuxième et la troisième étape du procédé peuvent être répétées successivement.
Patent CA-2153359-C (CA)
Inventor: INABA MINORU
IPC: G03C1/765
Filed: 1995-07-06
Granted: 1999-03-02
Abstract: A film cut into a screen is correctly and easily fitted onto a slide mount.  For this purpose, the slide mount is formed by joining a mount and a cover together, and windows are opened in the central portions of the mount and the cover, respectively.  A film-placing portion is provided surrounding the window of the mount, and positioning pins are studded at four corners of the film-placing portion so as to be corresponded to engaging holes at both side portions of the film.  Positioning holes are perforated in the periphery of the window of the cover at positions opposed to the positioning pins.  The film is placed on the film-placing portion, and the positioning holes of the cover are brought into engagement with the positioning pins of the mount while the cover is being depressed onto the film.  Then, the engaging holes of the film engage with the positioning pins, and the film is correctly fitted onto the slide mount.
Patent CA-2158127-C (CA)
Inventor: RATLEY PATRICK L
IPC: H02G3/04
Filed: 1995-09-12
Granted: 1999-07-27
Abstract: A wireway comprises a wireway section having sidewalls providing a wireway interior and first and second ends.  The ends include perimetrally extending flanges.  Mounting plates are provided for attachment to the flanges.  The mounting plates have outer perimetral edges.  Each mounting plate has a first mounting foot extending from the outer perimetral edge generally along the wireway section in a first direction to provide a mounting for the wireway.
Patent CA-2161879-C (CA)
Title: Chair
Inventor: DESANTA SIMON
IPC: A47C1/032
Filed: 1995-03-24
Granted: 1999-09-07
Abstract: A chair with a moveable seat panel (12) mounted springingly on a support (10) and a back-rest (14) has a seat panel made from pliant panel material which is guided down around the front edge (20) of the seat panel in a U-shape and then rigidly sandwiched in the support (10). A guide bar (24) which is pivotably mounted on the support (10) is directed backwards and is rigidly connected with the underside of the rear end portion of the seat panel (12)
Patent CA-2168273-C (CA)
Title: Extrusion apparatus and method with pressure equalization
Inventor: MILEY GARY D
IPC: B29C48/12
Filed: 1996-01-29
Granted: 2006-05-16
Abstract: An extrusion apparatus and method for producing a composite profile strip characterized by an extrusion head having plural flow channels extending to an extrusion die and at least two extruders for feeding respective components at respective different pressures into the flow channels for passage to the extrusion die. The extrusion die has a common die outlet from which the components are discharged to form the composite profile strip, and respective flow restriction devices are disposed in the flow channels between the extruders and the extrusion die. The flow restriction devices are operative to decrease the difference in pressure between the components before being brought together at the extrusion the extrusion die and further to dampen the effect changes in extruder speed has on the profile of the composite profile strip.
Patent CA-2169963-C (CA)
Inventor: VALYOCSIK ERNEST W
IPC: C01B39/46
Filed: 1994-08-12
Granted: 2005-07-05
Abstract: A new synthetic porous crystalline material, designated MCM-58, has an X-ray diffraction pattern including the lines listed in table (I). The material is conveniently synthesized from a reaction mixture includ- ing benzylquinuclidinium cations.
Patent CA-2176131-C (CA)
Title: Systeme de commande de services d'informations interactifs
Inventor: LOGSTON GARY L
IPC: H04N7/173
Filed: 1994-11-03
Granted: 1999-12-07
Abstract: L'invention concerne un système numérique de distribution vidéo, audio et de données permettant à un boîtier décodeur pour télévision interactive (STT) associé à un téléviseur d'abonné ou à un dispositif de présentation d'informations de demander des messages de système de commande numérique de données, vidéo et audio transmis par un trajet de signalisation bidirectionnel. Le service interactif demandé est transmis par le prestataire de service sur une partie de la bande passante d'un réseau de transmission à large bande (128) affecté aux services numériques interactifs. Une connexion de session vidéo (VSC) est prévue pour établir et maintenir des sessions interactives entre le boîtier décodeur et un prestataire de service vidéo pendant le laps de temps où la programmation interactive est fournie à l'abonné. Ce boîtier décodeur pour télévision interactive (30) et le prestataire de service (20) établissent une connexion de session vidéo par l'intermédiaire d'un trajet de signalisation à deux voies dans la bande passante du support de transmission vers le domicile de l'abonné.
Patent CA-2181494-C (CA)
Title: Electrode coil for discharge lamps and method for producing such an electrode coil
Inventor: HOFFMANN ROLAND
IPC: H01J61/06
Filed: 1996-07-18
Granted: 2008-03-25
Abstract: The invention relates to electrode coils for discharge lamps having a coiled wire (1) which is wound around by a braiding wire (2). The coiled wire (1) has both turns (II) with an essentially circular cross--section and turns (I, III) with an oval cross-section. In order to produce the bar-shaped coil according to the invention, the unit comprising the coiled wire (1), the first core wire (3) and the braiding wire (2) is wound around a second core wire (4) which is flattened in places. Unrolling of the braiding wire (2) is prevented thereby. Production of the coil is cost-effective, since only two core wires are required and the coil ends are not fused.
Patent CA-2183402-C (CA)
Inventor: TEAGNO VLADIMIRO
IPC: F16G11/14
Filed: 1996-08-15
Granted: 2006-05-16
Abstract: The cable tie strap, having elongate strap body and a locking head provides for receipt of the cable tie strap in the head in either direction. The cable tie strap includes a hollow locking head and an elongate strap having toothing on each side of the strap. A locking bar is positioned within the hollow head. The strap body may be inserted into the hollow head in either direction. The locking bar is lockingly engagable with the toothing on either side of the strap upon insertion of the strap into the head in either direction.
Patent CA-2185346-C (CA)
Title: Dispositif analgesique portable
Inventor: TSUKADA OSAMU
IPC: A61M5/152
Filed: 1995-06-06
Granted: 2005-11-29
Abstract: Dispositif analgésique portable comprenant un élément d'alimentation en produit chimique pour le stockage temporaire d'une quantité prédéterminée de produit chimique et délivrant automatiquement le produit chimique; un premier connecteur à trois voies raccordé à l'orifice d'évacuation de l'élément d'alimentation en produit chimique; une conduite d'injection intermittente de produit chimique raccordée à une sortie du premier connecteur à trois voies; une conduite d'injection continue de produit chimique raccordée à l'autre sortie du premier connecteur à trois voies; un second connecteur à trois voies servant à établir une communication entre les orifices d'évacuation des deux conduites.
Patent CA-2192098-C (CA)
Title: Access network
Inventor: SMITH PHILIP JOHN
IPC: H04B10/275
Filed: 1995-06-06
Granted: 2001-01-23
Abstract: A telecommunications access network comprises a plurality of customer terminals (25, 30) and a plurality of network nodes (23, 28). Each network node (23, 28) is connected to a plurality of the customer terminals (25, 30) by respective local access lines (24, 29), whereby each customer terminal is connectible to a switch (11, 12) of a telecommunications core network via one of the network nodes. At least one of the customer terminals (25', 30') is connected to two of the network nodes (23, 28) by respective local access lines (24, 24' or 29, 29').
Patent CA-2197384-C (CA)
Title: Ink jet cartridge body with vented die cavity
Inventor: BRANDON FRED YOUNG
IPC: B41J2/14
Filed: 1997-02-12
Granted: 2006-12-12
Abstract: The invention is directed to an ink jet cartridge assembly, including a cartridge body and a print head. The cartridge body includes a die cavity and at least one groove disposed in communication with the die cavity and with an ambient environment. The print head is disposed at least partially within the die cavity. An adhesive is disposed within the die cavity between the body and the print head for bonding the print head to the body. The at least one groove defines a vent to the ambient atmosphere for a gas which may be produced during curing of the adhesive.
Patent CA-2197508-C (CA)
Inventor: MURRAY STEPHEN B
IPC: F41H11/14
Filed: 1997-02-13
Granted: 1999-11-30
Abstract: The present invention relates to a land mine disabling or destroying system. Thesystem is comprised of a mine disabling and destroying device, a rocket, a support unit for housing the mine disabling or destroying device and for mounting the rocket in a launching attitude. The mine disabling and destroying device is comprised of a first resilient cable unit having a first end and an opposite second end. The first resilient cable unit is secured at the first end to the support unit. A first rigid structure is connected to the second end of the first resilient cable unit. A mesh arrangement is provided having a first end and an opposite second end. The first end is connected to the first rigid structure. A plurality of explosives is arranged in a rectangular array on the mesh arrangement. A detonator connects the support unit to the plurality of explosives. A second rigid structure is secured to the second end of the mesh arrangement. A second resilient cable unit connects the second rigid structure to the rocket.
Patent CA-2201636-C (CA)
Inventor: KIRST RALPH
IPC: E04C3/14
Filed: 1997-04-02
Granted: 2004-09-21
Abstract: A beam is composed of a tree trunk which has been star-mortised into right triangular sections which are joined together in pairs to produce rectanguloid laminae that are, in turn, glued together to form a beam in which growth rings of the tree trunk are oriented vertically and in the longitudinal direction of the beam. Due to the resulting more favorable growth ring position, the beam according to the invention can be much more highly statically loaded than a conventional beam, and moreover, can be produced at much lower costs than known glued wood truss beams formed of solid, one-piece rectanguloid tree trunk sections.
Patent CA-2202113-C (CA)
Inventor: VAN WYK ROBERT A
IPC: A61B17/32
Filed: 1997-04-08
Granted: 2005-11-15
Abstract: A rotating endoscopic shaver blade assembly adapted for side-cutting and end-cutting. A pair of longitudinally extending, symmetrical fingers extends from the distal end of an elongated tubular inner member and are juxtaposed adjacent a window at the distal end of an elongated tubular outer member. Each of the fingers is provided with laterally facing and transversely facing cutting edges and has a curvilinear profile terminating at a distal tip. The distal tips of the fingers are separated by an axially aligned gap which enables limited stress- relieving radial movement of the fingers.
Patent CA-2205257-C (CA)
Inventor: BARRITT WILLIAM D
IPC: H05B1/02
Filed: 1997-05-13
Granted: 2002-08-06
Abstract: A delay timer incorporated into an induction cooking cartridge permits the use of the induction cooking cartridge with conventional modular cooktops including bi-metal power switches without damage to the induction circuitry.
Patent CA-2205413-C (CA)
Title: Detergent compositions containing specific lipolytic enzymes
Inventor: BAECK ANDRE
IPC: C11D1/29
Filed: 1995-11-16
Granted: 2001-02-20
Abstract: A detergent composition comprising a lipolytic enzyme which provides a significantly improved whiteness maintenance performance over the LipolaseTM enzyme when compared at an identical hydrolytic activity (same amount of LU per liter of wash solution).