baber/WOPTO huggingface dataset:
Patent CA-2259702-A1 (CA)
Inventor: CHEN GEOFF
IPC: H02M3/335
Filed: 1999-01-19
Abstract: A switching type AC adapter includes a current mode PWM (pulse-width-modulated) controller, a monostable multivibrator, and a MOSFET so arranged that the current mode PWM controller and the monostable multivibrator are operated to let switching of the MOSFET be synchronized to synchronous signal from a synchronous circuit when the switching type AC adapter is electrically connected, enabling horizontal synchronizing interference to be concealed behind retrace time, and kept away from the screen of video equipment in which the switching type AC adapter is installed.
Patent CA-2262462-A1 (CA)
Title: Use of 1-nonen-3-one as a flavouring agent
Inventor: CHAINTREAU ALAIN
IPC: A23L27/20
Filed: 1997-07-22
Abstract: Use of 1-nonen-3-one as a flavouring agent, for flavouring food, cosmetics, pharmaceuticals and perfume compositions. A composition consisting essentially of 1-nonen-3-one and at least a molecule selected from 2,3-butanedione, 2,3-pentanedione, dimethyl sulfide, methional, 2-methyl-tetrahydrothiophen-3-one, 2E-nonenal, guaiacol, methyl propanal, 2-methyl butanal, 3-methyl butanal, 2- and 3-methyl-2-butenal, 2- and 3-methyl butyric acid, 3-methyl-2-butenethiol2-methyl furanethiol, 2-furfurylthiol, 3-mercapto-3-methylbutylformate, 4-ethyl guaiacol, 4-vinyl guaiacol, 2-isopropyl-3-methoxypyrazine, 2,3-diethyl-5-methylpyrazine, 2-ethyl-3,5-dimethylpyrazine, 2-isobutyl-3-methoxypyrazine, beta-damascenone, vanillin, 4-hydroxy-2,5-dimethyl-3(2H)-furanone, 2-ethyl-4-hydroxy-5-methyl-3(2H)-furanone, 3-hydroxy-4,5-dimethyl-2(5H)-furanone, and 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone.
Patent CA-2263026-A1 (CA)
Title: Shoe press belt and method of manufacture
Inventor: HASEGAWA YASUO
IPC: D21F3/02
Filed: 1999-02-25
Abstract: A shoe press belt for papermaking comprises an endless first resin layer formed on a polished surface of a mandrel; a base fabric layer comprising a woven fabric leaf arranged over the entire outer periphery of the first resin layer, at least one of the sets of intersecting threads of the fabric leaf being high-strength threads extending axially along the mandrel; a bobbin layer comprising high-strength thread circumferentially pound in a spiral on the outer periphery ox the base fabric layer; and an endless second resin layer on the outer periphery of the bobbin layer, the second resin layer being in contact with the first layer through the base fabric layer and the bobbin layer. The shoe press belt constructed in this manner exhibits high strength in the machine direction as well as in the cross machine direction.
Patent CA-2267096-A1 (CA)
Inventor: LANNE JEAN-YVES
IPC: A61P25/08
Filed: 1997-10-03
Abstract: L'invention a pour objet des microsphères pharmaceutiques contenant, comme principe actif, un mélange d'acide valproïque et d'un de ses sels pharmaceutiquement acceptables, en association à un support matriciel choisi parmi des esters de glycérols, des huiles hydrogénées, des polyéthylèneglycols estérifiés, des cires et leurs mélanges.
Patent CA-2268746-A1 (CA)
Inventor: MARTIN FRANCIS H
IPC: C12P21/08
Filed: 1997-09-23
Abstract: Polypeptide growth factors, termed PDPFs, are described which are derived from placental tissue and promote the proliferation, growth and survival of prostate cells and epithelial cells. Nucleic acid molecules encoding the polypeptides are also described which are useful in recombinant methods for the production of the polypeptides.
Patent CA-2270450-A1 (CA)
Title: Procede pour la surveillance et la gestion de la qualite de produits lamines obtenus par laminage a chaud
Inventor: PICHLER RUDOLF
IPC: G05B17/02
Filed: 1997-10-29
Abstract: L'invention concerne un procédé pour la surveillance et la gestion de la qualité de produits laminés obtenus selon des procédés de laminage à chaud, au cours desquels des produits laminés tels que des tôles, des barres, etc. sont produits à partir d'un matériau de départ tels que des brames, des billettes, etc. L'objectif de l'invention est de calculer à l'avance les caractéristiques escomptées relatives à la matière du produit final pour chaque étape de production du procédé de laminage à chaud. Cet objectif est atteint par le fait que les conditions de production telles que les températures (t), les réductions par passe (?) etc. sont détectées en lignes tout au long du processus de laminage, et qu'à partir des valeurs obtenues, au moyen de modèles (1, 2, 3, M) physicométallurgiques et/ou statistiques combinés les uns avec les autres et décrivant le processus de laminage complet, sont calculées à l'avance les caractéristiques de matière mécanotechnologiques, en particulier la limite d'étirage (R¿p0,2?), la résistance à la traction (R¿m?) et l'allongement à la rupture (A¿x?) du produit laminé. Il faut avant tout procéder à la détection en ligne des conditions de production effectives et actuelles pour toujours pouvoir calculer à l'avance les caractéristiques de matière escomptées.
Patent CA-2271368-A1 (CA)
Inventor: POIRIER MIKE
IPC: E05B73/00
Filed: 1999-05-07
Abstract: A method and apparatus for securing portable equipment including computers and computer peripheral devices is disclosed. The Security system uses a novel combination of locking, attachment and shackling means to achieve a simple and effective anti-theft device.
Patent CA-2271414-A1 (CA)
Title: Synthesis of 3-epi vitamin d3 metabolites and analogs
Inventor: BATCHO ANDREW DAVID
IPC: C07F7/18
Filed: 1999-05-10
Abstract: The invention relates to a process for the preparation of vitamin D3 compounds of formula I.    wherein A is a single or a double bond;      B is a single, cis-double, trans double or a triple bond;      R1 and R2 are independently hydrogen, a C1-C4 alkyl;    R3 and R4 are independently a C1-C4 alkyl, a hydroxyalkyl, and a haloalkyl; and X and Y are independently hydrogen or hydroxy in the case when B is a single or a double bond.
Patent CA-2272307-A1 (CA)
Inventor: SCHNELL WILLIAM J
IPC: A61M1/36
Filed: 1997-11-19
Abstract: An extracorporeal, flow-through bubble trap chamber (320) has improved bubble separating abilities at high flow rates and generates smaller bubbles. The chamber contains chamber-defining top wall (330), side walls (334, 336) and bottom wall (332) plus blood inlet/outlet ports (322, 344) which extend through top and bottom walls (330, 332) to bring blood into and out of the chamber (320). The chamber (320) preferably has a height that is less than 1.6 times the longest horizontal dimension of the chamber (320). As a result of this, blood flow through the chamber (320) is substantially horizontal. A common flow inlet/outlet tube (350), closed with a central partition (340) is also present.
Patent CA-2272377-A1 (CA)
Title: Semelle elastique destinee notamment a etre placee sous un rail
Inventor: OCZYKOWSKI ANDRZEJ
IPC: E01B9/68
Filed: 1997-06-09
Abstract: Cette semelle élastique, destinée notamment à être placée sous un rail, est réalisée en plastique ou caoutchouc élastique et présente deux côtés opposés, l'un de ces côtés au moins constituant une surface partiellement et approximativement déterminée par une fonction simple et/ou composée, trigonométrique, sinusoïdale et/ou cosinusoïdale, de manière qu'au moins une partie de l'un des côtés opposés du patin élastique présente des portions saillantes (3) et des creux (4) disposés en alternance, le passage d'une portion saillante à un creux, et inversement, s'effectuant en douceur. On utilise notamment cette semelle sur des tracés permanents de transport par rail en tant qu'élément destiné à atténuer les vibrations et à absorber les charges dynamiques transmises par les véhicules aux rails.
Patent CA-2272545-A1 (CA)
Inventor: FANG JIANMING
IPC: A61K48/00
Filed: 1997-11-20
Abstract: The present invention relates to the discovery, identification and characterization of a novel subgroup of activins/inhibins, herein referred to as liver activins, that during vertebrate adult life are specifically expressed in the liver. The invention relates to the activin .beta.C and .beta.E subunits and other members of the liver activin subgroup. The invention encompasses liver activin nucleotides; liver activin genomic regulatory elements that regulate the expression of liver activins; host cell expression systems; liver activin proteins, fusion proteins, polypeptides and peptides; antibodies to liver activin protein, transgenic animals that express a liver activin; recombinant knock-out animals that do not express liver activin(s); antagonists and agonists of the liver activins; and other compounds that modulate liver activin gene expression activity to regulate cell growth and/or differentiation and to diagnose and treat abnormalities related thereto. In addition, the present invention encompasses methods and compositions for the regulation of cell growth and/or differentiation including, but not limited to, stimulating liver regeneration, bone growth and hematopoiesis.
Patent CA-2277395-A1 (CA)
Inventor: YAMAWAKI SHUTA
IPC: G01N33/00
Filed: 1999-07-09
Abstract: A flow rate detector mechanism using variable Venturi therein, comprising: a variable flow rate generator, comprising: a core 11; and a variable Venturi 12; wherein a throat (flow passage) cross-sectional area defined between the core and the venturi is able to be changed by shifting relative positions of the core and the venturi in a direction of axes thereof, and further comprising a flow rate calculation processing portion 30 for calculating a flow rate based on the relative positions in the direction of the axes thereof and for outputting the calculated flow rate, thereby continuously changing the constant flow rate, without occurrence of any disturbance therein. Further, with an exhaust gas sampling method applying the flow rate detector mechanism using variable Venturi, CVS flow rate is changed within the range of the phases of measure modes, so as to make small the difference between the peak dew point in the bag and the final dew point in the bag, as well as to cause the final dew point to approach the temperature at which the bag is kept.  Therefore, the dilution ratio of the final dew point is decreased, so as to improve the accuracy in analysis.
Patent CA-2278012-A1 (CA)
Title: Process for the production of acetic acid
Inventor: LUCY ANDREW RICHARD
IPC: C07C53/08
Filed: 1998-01-20
Abstract: A process for the liquid phase oxidation of butane to produce acetic acid by reacting oxygen and butane in the presence of a cobalt catalyst in a liquid reaction composition in an oxidation reaction zone characterised in that the process is performed at a temperature in the reaction zone in the range 120 to 180 ~C whilst continuously maintaining a concentration of oxygen throughout the reaction zone equivalent to a partial pressure of oxygen greater than 2 bar and a concentration of cobalt oxidation catalyst in the liquid reaction composition of at least 0.12 % by weight cobalt and up to its limit of solubility in the liquid reaction composition.
Patent CA-2278669-A1 (CA)
Title: Spray can actuator with enhanced attachment mechanism
Inventor: BRODY HARVEY
IPC: B05B9/04
Filed: 1998-01-20
Abstract: A spray can holding an actuation device comprises a rim engagement element and a mechanism for compressing the rim engagement element against the rim surrounding the push-button valve on the can to attach the device to the rim.  In a preferred embodiment, the compressing mechanism comprises a locking element that is selectively movable to a locking position in which it compresses the rim engagement element into a locking attachment to the rim.  More specifically, the rim engagement element comprises a pair of opposed segments that together define a substantially annular interior surface that fits loosely around the exterior of the rim, and the locking element comprises a substantially annular member that is movable into and out of a compressing engagement with the exterior surface of the rim engagement element segments.  As the locking element is moved into the compressing engagement with the segments, it presses them toward each other into a clamping engagement with the rim. When the locking element is moved out of the compressing engagement with the segments, the segments resiliently restore themselves to their original positions, whereby the rim engagement element can easily be separated from the rim. The rim engagement element may advantageously be provided with camming surfaces on its exterior surface to enhance and facilitate the pressing action provided by the locking element.
Patent CA-2278876-A1 (CA)
Inventor: PALLARES ADEMAR
IPC: A47B27/18
Filed: 1999-07-26
Abstract: A lock system for releasably locking a first component, pivotally coupled along a pivot axis to a second component, in a plurality of positions fixed relative to the second component. The system includes a first engaging mechanism fixed to the first component and aligned with the pivot axis such that it rotates in a rotation plane substantially perpendicular to the pivot axis when the first component is pivoted relative to the second component. The system also includes a second engaging mechanism pivotally mounted to the second component and movable between a first engaged position in which the second engaging mechanism fixedly engages with the first engaging mechanism, preventing the first component from pivoting relative to the second component, and a second disengaged position removed from the first engaging mechanism wherein the first component is free to pivot relative to the second component.
Patent CA-2280510-A1 (CA)
Title: Tie bars for concrete forms
Inventor: HUBERT THEODORE G
IPC: E04G17/075
Filed: 1999-08-19
Abstract: A concrete form tie bar comprises a metal strip having opposite longitudinal edges, opposite longitudinal side faces and opposite end portions, with an intermediate portion between the end portions. The metal strip also has a pair of form locating first tabs projecting laterally from the metal strip and spaced apart longitudinally of the metal strip between the end portions and a pair of retainer bar reception slots in the end portions of the metal strip. Second tabs projecting laterally from the metal strip are bent from the metal strip so as to form opposed notches in the opposite longitudinal edges of the metal strip at shear-off locations between the intermediate and end portions and the second tabs rake out concrete from slots in concrete forms on removal of the end portions from the forms.  Further notches are formed in the longitudinal edges of the end portions to facilitate engagement by a hammer, and a low friction material partially overlaps each of the retainer bar reception slots to facilitate insertion of a retainer bar.
Patent CA-2281572-A1 (CA)
Inventor: HALL STEVEN R
IPC: B64C27/00
Filed: 1998-02-26
Abstract: An actuator having two frames, each frame including a distal end member, a proximal pivot end member or proximal end pivot point, and at least two elongated side members connected between the distal end member and the proximal pivot end member of that frame. A flexure is disposed between an end of the pivot end member of the first frame and an end of the pivot end member of the second frame. A first longitudinal span member is disposed between the distal end member of the second frame and the pivot end member of the first frame, and a second longitudinal span member is disposed between the distal end member of the first frame and the pivot end member of the second frame. At least one of the first and second longitudinal span members is an expansive element having a longitudinal axis along which dimensional strain can be induced in response to an applied stimulus. This expansive element extends in a state of compression between the corresponding distal and proximal pivot end members, with the longitudinal axis of the element in a plane parallel to side members of the first and second frames. The one or both of the longitudinal span members that are expansive elements can be, e.g., a magnetostrictive element, an electrostrictive element, or a piezoelectric element. The actuator provides many of the characteristics required to achive optimal mass efficiency for a given set of actuator materials; and further provides advantages of high bandwidth, linearity, and large stroke performance advantages. As a result, the actuator can be adapted to many applications and can accommodate a range of engineering constraints.
Patent CA-2284488-A1 (CA)
Title: Whipstock apparatus and methods of use
Inventor: SIEBER BOBBY G
IPC: E21B23/00
Filed: 1995-02-21
Abstract: An oil field Whip-Anchor System, for deviating a wellbore, which uses an improved whipstock (1) incorporating a new setting apparatus and method, attached to a mechanical (14M) or hydraulic anchor packer is disclosed. The complete Whip-Anchor System also includes an apparatus and method for retrieving the Whip-Anchor if it is used in wellbores which require retrievable wellbore deviation tools.  The new apparatus reduces the number of whipstock bodies that must be warehoused to three fundamental types which fit all commonly used wellbores. The apparatus permits the proper "set" of a mechanical packer without fear of shearing the releasable attachment device currently used in the industry and permits an operator to "bottom hole wash" while setting a mechanical packer in a wellbore. The same apparatus and similar techniques are used for both mechanical or hydraulic packers. The system utilizes a slot cut in the face (11) of the whipstock for setting (13) and retrieval (12). Other improvements include a pinned spring loaded hinge assembly (6) which assures that the tip of the whipstock will fall against the wellbore, a deflector plate (7) that uses a surface hardening or polycrystaline diamond inserts to reduce wear on the top portion of the device during the window milling operation. Also disclosed are additional downhole tools for use with the Whip-Anchor System.
Patent CA-2284580-A1 (CA)
Title: A packaging and component delivery system for use in sterile medical or dental procedures
Inventor: DAWOOD J S ANDREW
IPC: A61B19/02
Filed: 1998-03-27
Abstract: The present invention relates to a packaging and component delivery system for use in sterile medical or dental procedures which enables an operator to carry out surgical procedures using a conventional aseptic surgical technique, to pick up and manipulate the package and deliver the sterile contents for use during the procedure. The packaging intended to contain sterile items is provided with openings, attachments or other features or accoutrements that facilitate and enable manipulation and opening of said packaging by means of dedicated instrumentation. The materials that form the packaging are folded back upon themselves to create said openings.
Patent CA-2286442-A1 (CA)
Title: Compositions for increasing the concentration of cannabinoids as vasodilators and cardioprotectors againts ischaemia
Inventor: LAMONTAGNE DANIEL
IPC: A61K31/23
Filed: 1999-10-15
Abstract: The potent anti-ischaemic effects of cannabis-like drugs in the brain and the presence of CB1 and CB2-type cannabinoid receptors in heart indicate that endogenous cannabinoids such as 2-arachidonylglycerol and palmitoylethanolamide may contribute to protect the heart against the deleterious effects of ischaemia and reperfusion.  2-arachidonylglycerol and palmitoylethanolamide abolished the deleterious effects produced by ischaemia and reperfusion by interacting with CB2 cannabinoid receptors located in heart. In agreement with these results, the CB2 antagonist SR144528, but not the CB1 antagonist SR141716A, enhances the effect of ischaemia and blocks the protective effect 2-arachidonylglycerol (2-AG) and palmitoylethanolamide (PEA) perfused exogenously. These results indicate that peripheral CB2 receptors participate in the intrinsic defense of the heart against ischaemic insult and their endogenously and locally produced agonists such as 2-arachidonylglycerol and palmitoylethanolamide may mediate this protective effect. We have previously shown that endogenously produced mediators such as adenosine, des-Arg9-bradykinin, and prostaglandin E2 are involved in the protective effect of ischemic preconditioning (IPC) on the coronary endothelial function. We assess that the protective effect of IPC on endothelial function in coronary arteries of the rat also involves endogenously produced cannabinoids.  Isolated rat hearts were exposed to a 30-min low flow ischemia followed by 20-min reperfusion, after which the response to the endothelium-dependent vasodilator, serotonin (5-HT), was compared with that of the endothelium-independent vasodilator, sodium nitroprusside (SNP). In untreated hearts, ischemia-reperfusion diminished selectively 5-HT-induced vasodilatation, compared with time-matched sham hearts, the vasodilatation to SNP being unaffected. IPC in untreated hearts preserved the vasodilatation produced by 5-HT. Blockade of CB1 or CB2 receptors with either (CB1 or CB2 antagonists) abolished the protective effect of IPC on the 5-HT vasodilatation. Perfusion with either PEA or 2-AG, but not anandamide, 15 min before and lasting throughout the ischemia protected the endothelium. This protection was blocked by SR144528 in both cases, whereas SR141716A only blocked the effect of PEA. Ischemic preconditioning affords protection to the endothelial function in resistance coronary arteries of the rat partially by activation of CB1 and CB2 receptors. Exogenous cannabinoid perfusion protected the endothelium via CB1 and/or CB2 receptors.
Patent CA-2286450-A1 (CA)
Title: Apparatus and process for making a corrugation-free foam
Inventor: KELLEY BLAINE M
IPC: B29C48/90
Filed: 1999-10-18
Abstract: An apparatus for extruding a polymeric foam from an extrudate comprising a polymeric resin and a blowing agent for providing an extrudate with a cellular structure upon extrusion, the apparatus comprising: an extruder having an inlet adapted to receive the extrudate; an extrusion die comprising a substantially cylindrical body, an annular ridge extending from the cylindrical body and terminating in a peak, an annular slot located at the peak and defining an annular die opening forming an outlet for the extruder through which the extrudate is adapted to be pulled at a predetermined line speed, the extrusion die defining a longitudinal axis, and the annular die opening being concentrically oriented relative thereto and positioned therefrom at a first radial distance; a choke ring having an opening defined by an annular choke ring surface, the choke ring being positioned relative to the extruder such that the annular die opening is received within the choke ring opening, the choke ring opening being concentric about the longitudinal axis and positioned therefrom a second radial distance; and wherein the difference between the second radial distance and the first radial distance defines a gap between the choke ring and the die opening and the gap is less than 4.57 mm.
Patent CA-2286727-A1 (CA)
Title: Conveyor
Inventor: WARKENTIN A JAMES
IPC: B65G47/10
Filed: 1998-02-09
Abstract: A conveyor of product units has mounting brackets (28) extending laterally from endless chains (14, 16). The mount-ing brackets rotatably mount two spools (34, 36) having axes (30, 32) parallel tothe conveying path. Pivotally mounted off-loading elements (48) can be articulated to lift product units positioned on the conveying system for off-loading laterally from the conveyor. A laterally articulated actuator is located below the principal conveyor. The actuator includes laterally slidable slats (72) which fractionally engage the overlying rollers (34, 36).      Guides (78) move the slats laterally with the motion of the conveyor. With the lateral motion of the slats, the rollers are caused to rotate.