baber/WOPTO huggingface dataset:
Patent CA-2199866-C (CA)
Title: Osteosynthesis apparatus
Inventor: FOLEY KEVIN T
IPC: A61B17/70
Filed: 1995-09-14
Granted: 2006-08-29
Abstract: A bone fixation apparatus (10) having an elongated plate member (12) with at least two pairs of circular openings (24, 26) and at least one elongated slot (28) positioned along the longitudinal axis of the plate member (12). The plate member (12) is formed so as to include a curve in the transverse plane (TP). The openings and slot each form a cavity with walls extending between the upper and lower plate member surfaces (16, 18) with smaller diameter wall portions (32) at the plate member upper and lower surfaces and a larger diameter wall portion (34) therebetween. The openings (24, 26) and slot (28) are shaped to allow for angulation of an implanted bone screw (14). A plurality of bone screws (14) have a threaded first end portion (36) adapted for implantation into a patient's bone mass and a spherically shaped enlarged second end portion (40). A locking member (48) connects to the second end portion (40) to grip the cavity wall of the plate member (12) so as to lock each bone screw (14) into a selected position within the openings (24, 26) and slot (28) of the plate member (12).
Patent CA-2203008-C (CA)
Title: Method for measuring the conservation of stereophonic audio signals and method for identifying jointly coded stereophonic audio signals
Inventor: BRANDENBURG KARLHEINZ
IPC: H04S1/00
Filed: 1995-10-11
Granted: 1999-12-21
Abstract: The conservation of stereophonic audio signal properties is measured by using a stereophonic signal as reference signal and creating a signal for testing by processing the stereophonic signal, e.g. by coding and subsequently decoding it. Both signals are transformed into the frequency domain to create representative spectral data for the respective subbands. Signal quantities are determined for each subband both of the reference signal and also of the signal for testing on the basis of the spectral data of the channels of the reference signal or of the signal for testing. From the comparison of the signal quantities belonging to the same subband, conclusions can be drawn concerning the conservation of the stereophonic audio signal properties for the processing or coding technique being used.
Patent CA-2205681-C (CA)
Inventor: RUSCH WILLIAM P
IPC: B05B7/20
Filed: 1997-05-16
Granted: 2004-01-20
Abstract: A gas cap for a thermal spray gun has a spray passage extending from the combustion chamber to an exit end, and a thermal spray material is fed into the passage.  A nozzle component of the gas cap is formed of a tubular inner member in thermal contact with a metallic outer member, such as copper, that is in contact with a fluid coolant.  The inner member is formed of a hard, thermally conductive material, preferably a carbide in a metal matrix, such as tungsten carbide in cobalt.
Patent CA-2214309-C (CA)
Inventor: TROKHAN PAUL DENNIS
IPC: D21F11/00
Filed: 1997-08-29
Granted: 2003-01-28
Abstract: A papermaking vacuum apparatus having a web-facing surface adapted to support a papermaking belt and comprising a head, a body and at least one vacuumslot disposed in the head and defining an aperture on the web-facing surface. The vacuum slot is in fluid communication with the web-facing surface and extends from the web-facing surface to the body which is in further fluid communication with a vacuum source. The web-facing surface comprises a leading surface and a trailingsurface. The leading surface has a transitional area juxtaposed with the aperture created by the vacuum slot. This transitional area has a predetermined Z-directional spacing from the papermaking belt, which Z-spacing continuously and gradually increases in the machine direction whereby the amount of vacuum pressure appliedthrough the vacuum slot to the paper web gradually increases as the paper web travels in the machine direction over the slot.
Patent CA-2215963-C (CA)
Inventor: TURNER DUNCAN WILLIAM
IPC: C22B19/02
Filed: 1996-03-22
Granted: 2002-12-17
Abstract: The present invention relates to a method of processing a sulphide mineral c omposition which at least partly comprises an iron containing mineral, the method comprising the steps of: (a) milling said com position to a particle size P80 of 20 microns or less; ( b) leaching said composition with a solution comprising sulphuric acid and ferr ic ions at ambient pressure whilst sparging with an oxyg en containing gas in an open tank reactor at a temperature of up to about the b oiling point of the solution, whereby at least some of t he acid and at least some of the ferric ions are obtained from dissolution of the ir on containing mineral, and ferrous ions generated by the  leaching reaction are substantially re-oxidised to ferric ions in the leaching soluti on; (c) precipitating excess iron and separating said ir on together with any solid materials from the leaching solution; (d) extracting desired metal ions from the leaching solution by solvent extract ion with an organic solvent, such that the raffinate comprises sulphuric acid and fer ric ions; (e) returning the raffinate to the leaching ta nk and blending with further milled composition; (f) separating the metals from the  organic phase obtained in step (c) by stripping with el ectrolyte and electrowinning.
Patent CA-2220280-C (CA)
Inventor: SWIFT CARL J
IPC: H04W12/02
Filed: 1995-07-06
Granted: 2001-09-11
Abstract: Un système d'enregistrement de consignation pour système radio en mode partage comprend un dispositif (13) qui contrôle une pluralité de canaux du système radio en mode partage et émet des signaux analogiques représentatifs de ceux-ci. Un numériseur (13) est ensuite prévu pour numériser les signaux analogiques, et un contrôleur (17) découpe les signaux numérisés en segments et stocke ceux-ci dans une mémoire (1). Le contrôleur (17) génère également un index d'emplacements des segments dans la mémoire (21). Le contrôleur (17) peut être ensuite utilisé pour repasser sélectivement une conversation désirée par combinaison automatique des segments stockés dans la mémoire (21) à partir de l'index.
Patent CA-2223477-C (CA)
Title: Multiport illuminator for macro-fibers
Inventor: FORKNER JOHN F
IPC: G02B6/42
Filed: 1996-05-31
Granted: 2000-09-19
Abstract: The inventive system, which is used in transmitting illumination from a central source to a variety of remote locations, efficiently couples the light originating from an arc lamp, or similar source, into a multiplicity of flexible macroscopic fibers. The combination of the several elements of the inventive system results in a very efficient transfer of the energy of the light source to the fibers. The system also provides a very flexible mechanical means for distributing the energy to the fibers and to the remote locations at which the light is used.
Patent CA-2225798-C (CA)
Inventor: TAKHIM MOHAMED
IPC: C22B3/20
Filed: 1996-06-21
Granted: 2002-12-17
Abstract: A method for the extraction purification of at least one substance to be isolated from a liquid medium, comprising the steps of adding to the liquid medium a vapour-entrainable organic compound having a Lewis-type acid-base molecule where at least one N, O and/or S atom forms one or more active sites provided with a free electron pair in resonance with at least one other pair on the molecule, said compound being added in a sufficient amount to produce a reaction product from a balanced reaction between the organic compound and said substance(s) to be isolated, and to precipitate the balanced reaction product, filtering the precipitate, vapour-entraining organic compound therefrom, and collecting the substance to be isolated in a purified form.
Patent CA-2233002-C (CA)
Title: Processus de desencrage de vieux papiers de bureau
Inventor: BORCHARDT JOHN KEITH
IPC: D21C5/02
Filed: 1996-10-09
Granted: 2005-08-16
Abstract: Cette invention concerne un processus de désencrage de stocks de vieux papiers de bureau, lequel processus consiste (a) à transformer le papier en pâte, et (b) à mettre cette pâte en contact avec un milieu aqueux ayant un pH alcalin et contenant de 0,05 à 2 % en poids, par rapport au poids à sec de la pâte, d'un agent de désencrage. Cet agent comprend un premier composant contenant au moins un produit d'addition de type oxyde d'éthylène d'un alcool issu de la gamme des détergents et possédant de 8 à 20 atomes de carbone ainsi que de 3 à 20 unités d'oxyéthylène en moyenne par molécule d'alcool. L'agent de désencrage comprend un deuxième composant choisi dans le groupe des oléfines issues de la gamme des détergents et possédant de 8 à 20 atomes de carbone. Cet agent de désencrage peut encore se composer d'un mélange de ces deux composants, et comprendre un éventuel troisième composant consistant en un alcool de la gamme des détergents ayant de 8 à 20 atomes de carbone. Le milieu aqueux contenant la pâte ainsi obtenu est ensuite (c) traité par lavage ou flottation afin d'en retirer l'encre en suspension.
Patent CA-2239153-C (CA)
Inventor: DEFRANK MICHAEL
IPC: A01G25/02
Filed: 1995-11-29
Granted: 2002-10-29
Abstract: The serpentine, turbulence inducing path lengths (30) from the inlets (26) to the outlets (28) of the flow regulating passage (22) of a continuous emitter drip irrigation hose are arranged in back to back fashion relative to the outlets in the sense that the chevrons angle away from each of outlets, so there is parallel turbulent flow from two inlets to each outlet. The inlets are sufficiently large that they do not limit the flow rate through the outlets. This doubles the flow rate from each outlet without changing the dimensions of the flow regulating passage.
Patent CA-2240501-C (CA)
Title: Oil coagulant products and methods of use therefor
Inventor: ALPER HAL
IPC: B01D17/04
Filed: 1996-12-13
Granted: 2006-05-09
Abstract: Oil coagulant compositions, and methods of using such compositions to coagulate the oil that has been spilled on water are prepared from a thermal reaction utilizing an oil component selected from the group consisting of glycrides, fatty acids, alkenes and alkynes, and a copolymer component. Representative polymers include, for example, isobutyl methacrylate polymers, and representative oil components include, for example, glycerides such as those derived from a drying oil suc h as linseed oil. The composition of the present invention floats on the water surface and coagulates oil independent of both agitation and temperature, and can be used in both salt and fresh water. After the coagulant has coagulated the spilled oil, the floating coagulated oil ca n be readily removed from the water by mechanical means such that at least 99.9 % of the oil is removed from the water and only a faint trace of oil remains in the water. An alternate way of using the composition is to incorporate it into a porous substrate, which substrate is then applied to the spilled oil. Preferably, the porous substrate is a floatable material, enabling the product to keep afloat Group 5 oils or asphalt.
Patent CA-2255826-C (CA)
Title: Mutated nonactivating igg2 domains and anti-cd3 antibodies incorporating the same
Inventor: COLE MICHAEL S
IPC: C07K16/46
Filed: 1997-05-19
Granted: 2002-10-01
Abstract: The invention provides mutated IgG2 constant regions and anti-CD3 antibodies  incorporating the same. Such antibodies specifically bind to the CD3 antigen  on T-cells but induce reduced mitogenic response compared with otherwise identical antibodies bearing natural IgG2 constant regions. The antibodies c an be used for treating disorders requiring immune suppression with fewer side effects than result from treatment with prior anti-CD3 antibodies.
Patent CA-2257327-C (CA)
Title: Silanyl-triazines as light screening compositions
Inventor: HUBER ULRICH
IPC: C07D251/54
Filed: 1998-12-30
Granted: 2009-04-07
Abstract: The present invention concerns new silanyl-triazines of the formula I  (see formula I) wherein W1, W2 and W3 each independently signifies C1-C20 alkyl or a group SpSil;  X1, X2 and X3 each independently signifies O or NH;     Sp signifies a spacer group;     Sil signifies a silane, an oligosiloxane or a polysiloxane moiety;  with the proviso that at least one of W1,W2 and W3 signifies SpSil.
Patent CA-2260374-C (CA)
Title: Autonomous vehicle guidance system
Inventor: BLOOMQUIST LEIF ALAN
IPC: G05D1/02
Filed: 1999-01-27
Granted: 2000-08-08
Abstract: A system guides self propelled equipment through passageways, such as underground mine corridors. The vehicle contains a signal generator for bouncing signals off the walls of the passageways. A receiver collects the signals bounced off of the passageways to determine the distance to side: walls of the passageways. A storage device contains a set of interlinking nodes that represent at least one path through the passageways. Each of the nodes contains steering information. A processor finds the distance to the side walls of the passageways in order to steer the vehicle through the passageways. The system's operational state and method of steering changes depending upon the location of the equipment in the interlinking nodes.
Patent CA-2263753-C (CA)
Inventor: VIGARIE JEAN-PIERRE
IPC: H04N7/167
Filed: 1997-08-19
Granted: 2005-11-08
Abstract: Selon l'invention, on reçoit le message à l'aide de moyens (102A, 112) pourvus des droits d'accès au programme, on restitue les mots de contrôle, on constitue (102B, 114) des messageries complémentaires de contrôle d'accès et de gestions des titres d'accès correspondant à un système de contrôle d'accès complémentaire et l'on réémet le programme initial non modifié avec, en outre, les messages complémentaires liés au système de contrôle d'accès complémentaire. Application en télévision.
Patent CA-2268549-C (CA)
Inventor: HEUFT BERNHARD
IPC: G01N29/09
Filed: 1997-11-12
Granted: 2006-08-15
Abstract: Primary mechanical vibrations are generated in a container wall (12) to determine parameters in closed containers. The secondary vibrations caused by the primary mechanical vibrations of the container wall (12) in the container (10), which take place in the are between the closure (12) and the liquid, are recorded and analyzed, whereby the parameters are determined on the basis of recorded frequency progression of said vibrations.  Further, the primary vibrations of the closure (12) can also be recorded and analyzed, whereby the inner pressure prevailing inside the container (10) can be determined on the basis of the frequency of said primary vibrations. The frequencies of the primary and secondary vibrations can be determined by conducting a frequency spectrum analysis. The secondary vibrations can be recorded independently from the primary vibrations so that only those vibrations occurring within a timed measurement window are recorded, within which the primary vibrations have already abated.
Patent CA-2269477-C (CA)
Title: Cleansing products
Inventor: FOWLER TIMOTHY JOHN
IPC: A61K8/362
Filed: 1997-10-27
Granted: 2003-12-30
Abstract: The present invention relates to a substantially dry, disposable, personal cleansing product useful for both cleansing and conditioning the skin or hair.  These products are used by the consumer by wetting the dry product with water.  The product comprises a water insoluble substrate, a lathering surfactant, and an oil soluble conditioning agent. The invention also encompasses methods for cleansing and conditioning the skin or hair using these products and to methods for manufacturing these products.
Patent CA-2269927-C (CA)
Inventor: SATO TAKAAKI
IPC: H04W72/04
Filed: 1998-09-11
Granted: 2004-02-24
Abstract: A timing controller (22) generates timing information Tf when a packet transceiver (21) sets up a connection so that packets may be evenly dispersed, and informs the packet transceiver (21) and a base station (3) of the timing information (Tf). The packet transceiver (21) generates a packet in accordance with a frame offset value specified by the timing information (Tf). Therefore packets arrive at a packet multiplexer in a packet transmission period at averaged timings. The waiting time of the packet multiplex transmission is shortened. Therefore, a transmission link (L1) can be efficiently used while satisfying the service quality demanded.
Patent CA-2271083-C (CA)
Inventor: MCGUIRE KENNETH STEPHEN
IPC: D21H27/40
Filed: 1997-01-08
Granted: 2004-03-30
Abstract: The present invention relates three-dimensional sheet materials which resist nesting of superimposed layers into one another. More particularly, the present invention provides a three-dimensional, nesting-resistant sheet material having a first side and a second side. The first side comprises at least one region having a plurality of spaced three-dimensional protrusions extending outwardly from the first side which are preferably unitarily formed from the sheet material. To provide the nesting-resistant advantages of the present invention, the protrusions form an amorphous pattern of a plurality of different two-dimensional geometrical shapes. Preferably, the second side comprises a plurality of spaced, three-dimensional hollow depressions corresponding to the protrusions, such that the protrusions are hollow. Of particular interest for certain applications, such as a carrier for an adhesive, the protrusions are separated by an interconnected network of three-dimensional spaces between adjacent protrusions. The three-dimensional, nesting-resistant sheet materials are preferably manufactured in accordance with the present invention utilizing a three-dimensional forming structure comprising an amorphous pattern of spaced three-dimensional recesses separated by interconnected lands.      The recesses form an amorphous two-dimensional pattern of interlocking two-dimensional geometrical shapes. The amorphous pattern of interlocking shapes is preferably derived from a constrained Voronoi tessellation of 2-space in accordance with the present invention, wherein the tessellation is constrained by a constraint factor which controls the range of permissible center-to-center spacing of the interlocking shapes. To manufacture the three-dimensional, nesting-resistant sheet materials in accordance with the present invention, a sheet of deformable material is introduced onto the forming structure and permanently deformed into compliance with the forming structure. If desired, the interconnected lands of the forming structure may be coated with a substance before the sheet of deformable material is introduced onto the forming structure.
Patent CA-2273135-C (CA)
Inventor: SHIN-FU EIKEN LIN
IPC: A45C13/26
Filed: 1999-05-27
Granted: 2008-04-15
Abstract: A rigid frame travel bag equipped with wheels and a retractable handle is formed with a rigid frame assembly which includes a front panel, a rear panel and a shell in the form of a C-shaped bottom panel. The rigid frame members are constructed of extruded plastic material such as acrylonitrile-butadiene-styrene copolymer (ABS) or polyvinyl chloride (PVC). For increased strength and reduced weight, each panel is formed with longitudinally extending cells defined by longitudinally extending ribs. The front and rear panels are attached to the C-shaped bottom panel by integrally formed connecting flanges which extend in overlapping engagement with the inside surfaces of end panel portions extending from the bottom panel. The front and rear panels are also attached to and stabilized on one of the end panel portions by wheel assembly support plates.
Patent CA-2284305-C (CA)
Inventor: WEICHMANN ARMIN
IPC: B41F33/16
Filed: 1999-09-28
Granted: 2004-03-09
Abstract: A method for calibrating a digitally controllable printing machine having a permanent printing plate, for which image data has been created in machine-independent format in a pre-press stage. The image data is prepared for the printing process by a data processing device and is fed in adapted form to the printing machine 1. The data processing device uses a profile which corresponds precisely with the current machine condition, for the final data preparation for printing. The profile can be addressed using the correct color-space conversion for the printing machine (i.e., calibrated). For this purpose, at the time at which the data is prepared for image setting, a machine condition forecast for the time of printing is called up and, from this, together with the knowledge of the operating materials, the machine profile which most closely approaches that for the print job is determined. This profile is then used for the data preparation.
Patent CA-2285468-C (CA)
Title: Methods and systems for presentation and evaluation of constructed responses assessed by human evaluators
Inventor: BEJAR ISAAC I
IPC: G09B7/02
Filed: 1997-03-21
Granted: 2008-08-05
Abstract: The present invention provides systems and methods for controlled presentati on of constructed responses through a variety of computer applications to human evaluators for assessment. The systems and methods further provide for controlled presentation of the constructed responses to minimize the influences of psychometric factors on the accuracy of the human evaluators' assessments and to maximize the ability to efficiently generate data for use in analyzing the accuracy of the human evaluators' assessments and the difficulty of the constructed response categories or questions. The systems and methods of the present invention utilize a memory which relationally stores data regarding the human evaluators, the constructed responses, the scores awarded, and the computer applications to utilize. The systems (10) also comprise assessment stations (40a, 40b, 40n) and a processor (14) for selectively transmitting constructed responses to the assessment stations (40a, 40b, 40n), and receiving scores awarded by the human evaluators assign ed to the assessment stations (40a, 40b, 40n).
Patent CA-2286144-C (CA)
Inventor: PIROOZMAND FARSHAD
IPC: B01D61/02
Filed: 1999-02-08
Granted: 2005-05-10
Abstract: A method and apparatus for the treatment of the 5th Effect combined evaporator condensabe generated by kraft process pulp mills. The method includes the removal from effluents of organic compounds that result in BOD, COD and toxicity by the use of reverse osmosis. Through the use of a reverse osmosis membrane system (30, 56) there is provided a simple, economical and efficient treatment process for clean evaporator condensate, and in particular the 5th Effect combined evaporator condensate.
Patent CA-2288709-C (CA)
Inventor: ALLISON MILTON J
IPC: A61K35/741
Filed: 1998-05-22
Granted: 2010-05-18
Abstract: This invention provides materials and procedures for the delivery of selected strains of bacteria and/or oxalate-degrading enzymes to the intestinal tracts of persons who are at increased risk for oxalate related disease because they have lost, or have inadequate concentrations of these bacteria. The administration of these bacteria and/or the relevant enzyme removes oxalate from the intestinal tract and thus reduces the amount of oxalate available for absorption and reduces the risk for oxalate related disease.
Patent CA-2293590-C (CA)
Inventor: THOMAS EUGENE R
IPC: F25J3/02
Filed: 1998-06-26
Granted: 2007-07-24
Abstract: L'invention concerne un procédé permettant d'obtenir un liquide sous pression (19) riche en méthane à partir d'une charge d'alimentation à constituants multiples (10) qui renferme du méthane et un constituant gelable dont la volatilité relative est inférieure à celle du méthane. Ladite charge (10) est introduite dans un système de séparation (31) ayant une section de congélation qui fonctionne à une pression supérieure à environ 1 380 kPa (200 psi en pression absolue) et qui entraîne une formation de solides pour le constituant gelable, ainsi qu'une section de distillation placée sous la section de congélation. Le système de séparation (31) produit un flux de vapeur (14) riche en méthane et un flux liquide (12) riche dudit constituant gelable. Au moins une partie du flux de vapeur est refroidie pour donner un flux liquéfié riche en méthane, ayant une température supérieure à environ -112  DEG C (-170  DEG F) et une pression suffisante pour que le produit liquide soit à son point de bulle ou au-dessous de ce point, afin de générer un produit (20) et un flux de gaz (21) conférant une action de réfrigération au système de séparation.