baber/WOPTO huggingface dataset:
Patent CA-2252268-C (CA)
Title: Graffiti removing method
Inventor: TATENO HIDEO
IPC: C04B41/70
Filed: 1998-10-30
Granted: 2002-12-03
Abstract: A graffiti removing method comprising the steps of: applying a solvent condensation type silicone resin coating composition having water repellency onto a surface of a base material of a structure through a primer layer to form an adhesion-resistant surface layer on the primer layer; applying a releasable coating composition onto the surface layer to form a releasable layer, after graffiti are written onto the surface layer; and releasing the releasable layer from the surface layer after the releasable layer is hardened to thereby remove the graffiti together with the releasable layer from a surface of the surface layer, whereby although graffiti remaining on a surface layer are generally removed by wiping, or the like, not only it is difficult to wipe off graffiti but also the surface layer may be injured.
Patent CA-2255234-C (CA)
Inventor: FLEAGLE JON E
IPC: G01S17/93
Filed: 1998-12-03
Granted: 2006-03-28
Abstract: Dans le dispositif anti-rapprochement de moufles, un appareil de mesure sans contact détecte, d'une forme ou une autre, la distance entre un nez de flèche et un élément porteur soutenu par celui-ci. Si la distance détectée est inférieure à une valeur seuil prédéterminée, l'appareil déclenche un avertissement ou une autre opération afin d'aider l'opérateur à empêcher l'anti-rapprochement de moufles.
Patent CA-2257706-C (CA)
Inventor: SICOTTE PAUL
IPC: C02F1/68
Filed: 1998-12-31
Granted: 2002-05-28
Abstract: A composition for treating materials contaminated with hydrocarbon compounds comprises a protein component, a bulking agent and a microbial culture capable of metabolizing the hydrocarbon contaminants. The composition is mixed with the contaminated material and absorbs or adsorbs the contaminants thereby preventing leaching of same into the environment. The microbial culture allows for biodegradation of the contaminant thereby removing any environmental risk associated with the contaminated material. The protein component and bulking agent are preferably organic in nature and the microbial culture may be indigenous to the protein material. The invention also provides a method of treating hydrocarbon-contaminated material using a composition as described above. The invention is particularly suited for treating contaminated drill cuttings.
Patent CA-2265354-C (CA)
Title: Transparent coating compositions containing nanoscale particles and having improved scratch resistance
Inventor: DELLWO ULRIKE
IPC: C09D7/61
Filed: 1999-03-16
Granted: 2008-02-26
Abstract: The present invention relates to transparent coating compositions containing a binder and 0.5 to 25 wt.%, based on resin solids, of a material consisting of nanoscale primary particles obtained by jet dispersion of the nanoscale particles in the coating composition. The present invention also relates to a process for the production of these transparent coating compositions containing nanoscale particles by passing the coating compositions containing nanoscale primary particles and a binder in at least one pass through an apparatus which has at least one nozzle or at least one slit having a bore diameter or slit width of 0.05 to 1 mm and a length to diameter ratio of the bore or a depth to slit width ratio of the slit of 1 to 10, wherein there is a pressure differential between the nozzle inlet and outlet of at least 0.5, preferably of 1 MPa.
Patent CA-2268028-C (CA)
Inventor: MOLTZEN LENZ SIBYLLE
IPC: A61P25/16
Filed: 1997-10-03
Granted: 2003-03-18
Abstract: L'invention concerne des dérivés d'acide carboxylique (3-alcoxyisoxazol-4-yl)-substitué 2-amino et des analogues sulfurés desdits dérivés, représentés par la formule générale (I) ou (II), dans lesquelles R1 est hydrogène, alkyle, alkényle, alkynyle, cycloalk(én)yle, cycloalk(én)yl-alk(én/yn)yle ou est phényl-alk(én/yn)yle facultativement substitué; A est une liaison ou un groupe espaceur hydrocarbure; B est un groupe -CRa(NRbRc)-COOR5, où Ra-Rc sont chacun séparément hydrogène ou alkyle, et R5 est défini tel que R1 ou est pivaloyloxyméthyle, ou B est un groupe de formule (III), dans laquelle R2, R3 et R4 sont chacun séparément hydrogène ou choisis dans un groupe hydrocarbure non aromatique ou sont phényl- et thiényl-alkyle et choisis dans un groupe aliphatique hétéro, ou R3 et R4 sont connectés, formant un groupe alkylène, alkénylène ou alkynylène, ou R4 et R2 sont connectés afin de former un groupe alkylène, alkénylène ou alkynylène facultativement substitué par hydroxy ou méthyle, ou de former CH2-O-CH2; E est COOR6, où R6 est défini tel que R5, ou E est un tétrazolyle ou un triazolyle; X est O ou S; et Y est O ou S; ces dérivés sont un acide aminé excitateur (EAA), en particulier des ligands de récepteurs AMPA et/ou NMDA, utilisés dans le traitement d'ischémie cérébrale, de la chorée de Huntington, de troubles épileptiques, de la maladie de Parkinson, de la maladie d'Alzheimer, de schizophrénie, de douleurs, de dépression ou d'anxiété.
Patent CA-2271892-C (CA)
Title: Synthesis of ruthenium or osmium metathesis catalysts
Inventor: GRUBBS ROBERT H
IPC: A61F2/06
Filed: 1997-11-10
Granted: 2007-04-24
Abstract: The present invention relates to the synthesis of highly active ruthenium and osmium carbene metathesis catalyst in good yield from readily available starting materials. The catalysts that may be synthesized are of general formula (I) wherein: M is ruthenium or osmium; X and X1 are independently any anionic ligand; L and L1 are any neutral electron donor ligand; and, R and R1 are each hydrogen or on e of the following substituent groups: C2-C20 alkenyl, C2-C20 alkynyl, C1-C20 alkyl, aryl, C1-C20 carboxylate, C1-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy, aryloxy, C2-C20 alkoxycarbonyl, C1-C20 alkylthio, C1-C20 alkylsulfonyl and C1-C20 alkylsufinyl. Optionally, the substituent group may be substituted with one or more groups selected from C1-C5alkyl, halogen, C1-C5 alkoxy, and aryl. When the substitute aryl group is phenyl, it may be further substituted with one or more groups selected from a halogen, a C1-C5 alkyl, or a C1-C5 alkoxy. Specific synthetic protocols for vinyl alkylidene catalysts wherein R is hydrogen and R1 is -CHCR12R13 and non-vinyl alkyldien e catalysts are also disclosed. In addition to the ease of synthesis (typically a one-step synthesis), the reactions generally may b e run at or above room temperature and the resulting products usually may be used without extensive post synthesis purification.
Patent CA-2273209-C (CA)
Title: Filter with counter flow clearing
Inventor: OBST YURI
IPC: B01D29/68
Filed: 1997-12-01
Granted: 2006-04-11
Abstract: A filter system (10) comprising a filter medium (11) for filtering contaminants from a process fluid, having a filtration side on which contaminants collect and a filtrate side from which filtrate flows; a counte r- flow generator (20) located on the filtrate side that directs a localised stream of counter-flow fluid (23) from the filtrate side to the filtration side of the filter medium (11) to thereby dislodge the contaminants from the filtration side of the filter medium (11), wherein the localised stream (23) traverses a substantial proportion of the filter medium (11). The filter system (10) optionally further comprises a clearing-flow generator (30) or like means located on the filtration side of the filter medium (11) which clears contaminants from the filter medium (11).
Patent CA-2273763-C (CA)
Inventor: SCHRECK ZOLTAN
IPC: G01T1/208
Filed: 1999-06-04
Granted: 2003-10-21
Abstract: A  method and apparatus for determining the centre photodetector in a planar array of photodetectors of a gamma scintillation camera is provided.  The analog signals generated by a plurality of photomultiplier tubes (PMT) following a scintillation event, are digitized, integrated, and stored in a first memory. A first comparison means is used to divide the set of PMT logical signals into groups.      Each group comprises an arbitrary number of PMTs. The PMT logical signals within a group are combined into pairs and compared to select the highest intensity value for each individual group. Subsets of local PMT highest intensity values are created. A second comparison means is used to receive the subsets of local PMT highest values, combine them into pairs, compare the paired signals, and record the selected signals in a second memory, until a PMT with the maximum intensity value or a centre PMT is obtained. The data stored during processing are then arranged in a versatile look up table to facilitate the assembly of relevant information characterizing the distribution of scintillations around the centre photodetector.
Patent CA-2276443-C (CA)
Inventor: KONSTANTINIDIS APOSTOLOS
IPC: E04C5/02
Filed: 1997-12-31
Granted: 2006-02-14
Abstract: The present invention refers to stirrups for reinforcement of load bearing structural elements, and in particular for reinforcing concrete load bearing building elements, such as columns, shear walls, beams, stabs, footings, lintels, piles. The invention refers also to a method for reinforcing structural elements as well as to these elements. A stirrup for reinforcing load bearing elements according to the invention consists of a plurality of consecutive windings (7a, 7b) disposed along the longitudinal direction of the stirrup, so that the stirrup has a spiral form, whereby the windings of the stirrup form a plurality of discrete cages (5a, 5b) to house the main reinforcement bars (1a, 1b) of the load bearing element. The stirrups may be used for the reinforcement of load bearing elements of various cross sections such as orthogonal, T-shaped, L-shaped, Z-shaped etc.
Patent CA-2282010-C (CA)
Inventor: WEIGAND BERNHARD
IPC: F01D5/18
Filed: 1999-09-08
Granted: 2008-05-27
Abstract: A method of forming a film-cooling hole in a workpiece wall to be coated, the film-cooling hole, in the sequence of flow, having a feed section of constant cross-sectional area and a diffuser section widening toward an outlet at an outer surface of the wall, comprises the following steps: A) selecting the shape and size of the feed section and the diffuser section in order to achieve a desired blow-out rate of cooling air; B) selecting the desired thickness of the coating and the direction from which the coating is effected; and C) producing a film-cooling hole in the wall of the workpiece in such a way that at least portions of the boundary surfaces of the diffuser section are set back in accordance with the desired thickness of the coating, the coating direction and the angle of slope of the boundary surface in the coating direction by such a distance that the original contour selected in step A is essentially obtained after coating with the parameters selected in step B.
Patent CA-2287016-C (CA)
Inventor: HENRY RAY
IPC: H04L29/02
Filed: 1994-11-01
Granted: 2001-09-25
Abstract: A method and system for locating control channels, particularly digital control channels are described. By grouping the channels which are candidates for carrying supervisory messages in blocks indicative of their relative likehood for being used as control channels, a mobile station can begin its search for a control channel with channels which are most likely to actually be control channels. Placing location information on other channels allows the mobile station to be redirected to a control channel when it reads one of these other channels. Similarly, by placing information describing the location of a control channel in a message associated with handoff, a mobile station avoids the necessity of having to relocate a new control channel associated with the base station to which the mobile has been handed off.
Patent CA-2295940-C (CA)
Title: Epitopes of shigella like toxin and their use as vaccine and in diagnosis
Inventor: BURNIE JAMES PETER
IPC: G01N33/68
Filed: 1998-07-17
Granted: 2010-06-15
Abstract: The present invention concerns immunogenic epitopes of Shigella-like toxins (SLTs), particularly the Shigella-like toxin of E.coli O157:H7, their use as immunogens and in treatment or diagnosis, agents (for example antibodies and antigen-binding fragments) which specifically neutralise them, their use in treatment and diagnosis, and methods for same.
Patent CA-2297931-C (CA)
Title: Folding belt filter
Inventor: DAY PAUL HEDLEY
IPC: B01D33/056
Filed: 1998-08-06
Granted: 2011-06-14
Abstract: A belt filter for effecting separation of liquid from solids where, at the collection zone, a filter belt or belts is changed shape so as to provide a supporting shape to hold liquid, which is then fed into a nipping zone. In an embodiment there is a single belt used which is folded in a middle portion to provide the supporting shape.
Patent CA-2299815-C (CA)
Inventor: KUWABARA MASAMITSU
IPC: F01D25/12
Filed: 2000-03-01
Granted: 2004-08-10
Abstract: In gas turbine split rings, end faces having bent surfaces are formed in flanges. Adjoining split rings are coupled together with a groove therebetween to form a cylindrical split ring. Notches are formed in the flanges. These notches are sealed by inserting a seal plate into the notches of adjoining split rings. A hole for passing cooling air is drilled obliquely in the flange. Cooling air is allowed to flow out along the direction of rotation (of the turbine) . This cooling air cools the outlet of the groove due to the effect of film cooling. Because of such cooling, high temperature gas is prevented from staying in this area, cooling effect is enhanced, and hence burning of the end portions can be prevented.
Patent CA-2300187-C (CA)
Inventor: DWIGGINS JOHN H
IPC: D21F11/00
Filed: 1999-06-11
Granted: 2009-11-17
Abstract: The present invention is a method of making a near-premium quality paper product having good strength and absorbency characteristics and a product made by that method. The invention is also a method for retaining a high ash content within a paper web formed by conventional wet pressing. The present invention is also a method for retaining a high percentage of softening agent within a paper web that includes such an agent. Further, the present invention is a soft absorbent paper product having a high void volume. Finally, the invention is also a method for producing a soft, absorbent, and near premium paper product having a high void volume using an undulatory crepe blade having a multiplicity of serrulations in its rake surface which presents differentiated creping angles and/or rake angles as to the paper-being creped.
Patent CA-2305061-C (CA)
Title: A heuristic method for adaptive subdivision of coons patches for rendering
Inventor: HOUTMAN REYNOLD
IPC: G06T17/20
Filed: 2000-04-11
Granted: 2008-11-18
Abstract: The invention discloses a method for preparing Coons patches for rendering. The Coons patch is examined for folds and any regions containing folds are isolated from regions that do not contain folds. The rendering method appropriate for fold containing and non-fold containing regions can then be selected. The rendering method appropriate for fold containing regions requires extensive computation compared to that for non-fold containing regions. By isolating the regions containing folds, the invention allows the avoidance of the extensive computation for the non-fold containing regions. Thus, the invention enables reduction of the amount of computation that is required during rendering.
Patent CA-2309192-C (CA)
Inventor: KERSEY ALAN D
IPC: G01H9/00
Filed: 1998-11-03
Granted: 2004-06-15
Abstract: An interferometer array includes a plurality of interferometer sub-arrays, each sub-array including a plurality of interferometers.      Each interferometer in a sub-array is implemented with a respective pair of fiber Bragg gratings and a sensing length of optical fiber positioned between the respective pair of fiber Bragg gratings.      The fiber Bragg gratings in each respective pair of fiber Bragg gratings have the same characteristic wavelength that is different from the characteristic wavelength of every other pair of fiber Bragg gratings in the sub-array. The sub-arrays are interconnected to minimize the common-wavelength crosstalk between the sensors in the overall interferometer array. In one embodiment, the sub-arrays are connected in series along a common length of optical fiber such that the maximum common-wavelength crosstalk is limited by the number of sub-arrays connected in series. In a second embodiment of the invention, branches are interconnected to a common input/output optical fiber via optical couplers, and each branch has one or more sub-arrays connected in series. The common-wavelength crosstalk is limited by the number of arrays in each sub-array. In a third embodiment of the invention, branches are interconnected between an input optical fiber and an output optical fiber via optical couplers, and each branch has one or more sub-arrays connected in series. Optical signal delay elements are positioned in the input optical fiber to incrementally increase the delay experienced by an input optical signal before it reaches each successive branch connected to the input optical fiber. Therefore, the return optical signals from each sub-array in a branch are separated in time from the return optical signals from the sub-arrays in the other branches.
Patent CA-2312582-C (CA)
Inventor: SCHMITZ GUIDO
IPC: C08K5/00
Filed: 2000-06-27
Granted: 2003-10-28
Abstract: A thermoplastic multilayer composite which comprises the following layers:      I. a layer I of a thermoplastic molding composition;      II. a layer II of a further thermoplastic molding composition; in between a layer of an adhesion promoter which comprises at least 5% by weight of a graft copolymer prepared using the following monomers: a) from 0.5 to 25% by weight, based on the graft copolymer, of a polyamine having at least 4 nitrogen atoms and having a number average molecular weight M n of at least 146 g/mol, and b) polyamide-forming monomers selected from lactams, .omega.-aminocarboxylic acids and/or equimolar combinations of diamine and dicarboxylic acid, has good layer adhesion.
Patent CA-2313675-C (CA)
Inventor: ROGERS TIMOTHY DAYN
IPC: G01N27/82
Filed: 2000-07-07
Granted: 2004-11-30
Abstract: An apparatus for the magnetic inspection of ferrous conduit for signs of wear includes a housing having a first end, a second end and a conduit travel passage extending through the housing from the first end to the second end. At least one coil is positioned within the housing encircling the conduit travel passage. The coil is disposed at an angle to the conduit travel passage so as to create a transverse flux component. Sensor supports are positioned along the conduit travel passage encircled by the coil. At least one sensor array is mounted on the sensor supports. The sensor array is oriented to detect flux patterns which extend transversely relative to the conduit travel passage. A computer is in communication with the sensor array to receive and interpret signals from the sensor array.
Patent CA-2314052-C (CA)
Inventor: KIKO FREDERICK J
IPC: H04M11/04
Filed: 2000-07-19
Granted: 2007-01-30
Abstract: An impedance blocking filter circuit is provided for use in telecommunication systems for interconnecting between incoming telephone lines and customer's terminal equipment so as to unconditionally block impedances above 20 KHz due to the customer's terminal equipment from an ADSL network unit and/or home networking interface unit.      The filter circuit includes first, second, and third inductors connected in series between a first input terminal and a first common point. A first resistor has its one end connected also to the first common point and its other end connected to a first output terminal.      Fourth, fifth and sixth inductors are connected in series between a second input terminal and a second common point. A second resistor has its one end also connected to the second common point and its other end connected to a second output terminal. A capacitor has its ends connected across the first and second common points. In other aspects, the filter circuit also includes switching means for eliminating shunt additive capacitance and/or correction circuit means reducing significantly return loss.
Patent CA-2326177-C (CA)
Title: Water compatible energy curable compositions containing maleimide derivatives
Inventor: BIRO DAVID ANTHONY
IPC: C08L35/00
Filed: 1998-11-14
Granted: 2010-04-06
Abstract: Active water compatible energy curable compositions comprised of maleimide derivatives, water compatible resins and water which are capable of curing at a practical intensity and energy level and a method for curing same.
Patent CA-2330670-C (CA)
Inventor: MAYR REINHOLD
IPC: B27B3/16
Filed: 2000-02-28
Granted: 2008-04-15
Abstract: The description refers to a mill saw with a saw gate (3) driven via a slider-crank drive (4), whose parallel saw blades (5), which cut in only one stroke direction, are provided with a bias, and with a feed conveyor (6) for the stock to be cut, which is driven intermittently during the cutting stroke of the saw gate (3) as a function of the cutting speed by means of at least one motor (10) separated from the slider-crank drive (4) and connected to a controlling system (12). To achieve favorable construction features, it is suggested that the controlling system (12) connected to a signal transmitter (17) for a preset position of rotation of the slider-crank drive (4) controls the motor (10) in dependence on the response of the signal transmitter (17) according to a stored control program for one conveying step adaptable to the respective stroke frequency of the slider-crank drive (4).
Patent CA-2337053-C (CA)
Inventor: LEBKUCHNER BENNO
IPC: F16K11/07
Filed: 1999-09-03
Granted: 2008-12-23
Abstract: A mixing valve (100) receives fluid from a first source and fluid from a second source and outputs a mixture of the fluids. The mixing valve (100) includes a valve body (112) including a first fluid inlet (124a), a first fluid chamber (124b), a second fluid inlet (126a), a second fluid chamber (126b) and a fluid outlet (128). The mixing valve (100) further comprises a fluid flow regulator (116) mounted within the housing (112), wherein a lower surface (A) of the fluid flow regulator (116) is disposed within the first fluid chamber (124b) and an upper surface (B) of the fluid flow regulator (116) is disposed within the second fluid chamber (126b). The fluid flow regulator (116) is mounted within the valve body (112) in such a way as to permit movement of the fluid flow regulator (116) along a longitudinal axis of the valve body (112). The fluid flow regulator (116) includes a central hub (200) which extends below the lower surface (220) into the mixing chamber (160). A temperature-sensing device (114) is mounted to the central hub (200) of the fluid flow regulator (116) and is constructed and arranged for sensing a temperature of fluid which flows from the mixing chamber (160) to the outlet (128).
Patent CA-2337982-C (CA)
Title: Valve assembly
Inventor: PASQUALUCCI JOSEPH
IPC: A61B17/32
Filed: 2001-02-23
Granted: 2008-08-19
Abstract: A valve assembly for the sealed reception of an elongated object is provided. The assembly includes a valve body defining at least one opening configured and dimensioned to permit entry of an elongated object and defining a central longitudinal axis, and an elongated seal member having a resilient sealing structure and defining an aperture in general alignment with the opening of the valve body whereby the aperture is configured and dimensioned such that upon insertion of the object into the aperture, the resilient sealing structure resiliently engages the outer surface of the object in a tight manner. The sealing structure includes a plurality of elongated bristle members attached to the seal member. The bristle members are positioned to engage the elongated object upon at least partial insertion of the elongated object into the valve body. Each bristle member is adapted to be displaced relative to the longitudinal axis to facilitate expansion of the aperture of the seal member upon entry of the elongated object therein.