baber/WOPTO huggingface dataset:
Patent CA-2229122-A1 (CA)
Title: Constant velocity universal joint
Inventor: MIYATA KAZUNORI
IPC: F16D3/205
Filed: 1998-02-09
Abstract: A constant velocity universal joint comprises a plurality of trunnions which are formed to be spherical, sliding surfaces which extend in a flat configuration along an axial direction of an outer cup, and pairs of slipper members having one side surfaces which are formed with recesses for making contact with spherical surfaces of the trunnions and the other side surfaces which are formed with flat surfaces to make contact with the sliding surfaces, wherein the pair of slipper members are provided slidably with respect to the sliding surface and the spherical surface of the trunnion.
Patent CA-2229341-A1 (CA)
Inventor: RANDAZZO ANTONIO
IPC: H02K15/09
Filed: 1998-02-12
Abstract: Methods and apparatus for replacing an old wire threaded through a flyer winder with a new wire are provided.  A first end of the old wire is connected to a first end of the new wire.  The wires may be connected by twining, clamping, welding or the like.  A second end of the old wire that extends from one of the winder's flyers is then connected to a collection device, and the old wire is collected until the new wire has been threaded through the flyer winder along the same path traveled by the old wire.  The collection device may be an armature or similar structure having recesses for collecting the old wire during wire change-over or replacement.  Preferably the collection device is configured so that conventional coil lead connection operations may be used to expedite wire change-over or replacement.
Patent CA-2233760-A1 (CA)
Inventor: DE LADURANTAYE YVON
IPC: E01F13/02
Filed: 1998-05-27
Abstract: The extendible/retractable portable security barrier comprises an extendible/retractable scissor gate, and first and second self-standing posts made of molded plastic material and connected to respective ends of the scissor gate. The first and second posts are each formed, on the side of the gate, with a longitudinal trough. When the scissor gate is retracted and the first and second posts are brought against each other, the trough of the first post forms with the trough of the second post a cavity for receiving the scissor gate in retracted position.      The first and second posts then form a casing for the scissor gate to thereby improve transportability of the security barrier. The posts present the general configuration of an inverted T, and the base of the inverted T-shaped posts is hollow to receive a weight in order to improve the stability of these posts on the ground. Each post may comprise a security perimeter ribbon anchoring system. Finally, the extendible/retractable portable security barrier may comprise a sign-supporting system.
Patent CA-2236206-A1 (CA)
Title: Heparin chromatography of erythropoietins
Inventor: BOROWSKI MARIANNE
IPC: C07K1/22
Filed: 1996-10-17
Abstract: The present invention is directed to a simple and efficient process for the recovery of erythropoietins from biological and culture fluids using Heparin Chromatography. The present invention can be used to obtain research and commercial quantities of erythropoietin.
Patent CA-2236311-A1 (CA)
Title: Storm water filter arrangement
Inventor: VERSTEEGH RICHARD JOHN
IPC: E03F5/14
Filed: 1996-10-30
Abstract: A filter is described for filtering gross pollution from storm water for fitment to storm water traps located at the entry and exit of storm water, underground and drainage systems. Traps of various configurations can be fitted with a gross pollution filter apparatus comprising a filter basket (20) located below the entry level of storm water into the trap so as to provide a bypass channel (22) to allow a volume of storm water to pass through the trap. A storm water bypass means (28) is arranged to restrict entry of incoming storm water and gross pollution into the bypass channel while the combined pressure of storm water and gross pollution inside the trap is such that storm water can still pass through the filter basket (20). The bypass means (28) which acts like a one-way valve is also arranged to allow storm water to pass into the bypass channel when the combined pressure of storm water and gross pollution inside the trap is such that the storm water is restricted from passing through the filter basket.
Patent CA-2236551-A1 (CA)
Title: Hand-held sweep electronic printer with compensation for non-linear movement
Inventor: BOBRY HOWARD H
IPC: B41J3/39
Filed: 1996-11-01
Abstract: A hand-held and self-contained electronic printing apparatus (10) for printing indicia on a medium (M) which includes a housing (12) that can be manually positioned adjacent a surface of the medium (M) and manually swept across a printing area on the medium (M) during a printing sequence. A print head is disposed in the housing (12) which contains a plurality of print elements such as ink jet nozzles for printing indicia in a selectable pattern of dots on the medium (M) within the printing area. The printing apparatus (10) also contains an electronic control circuit disposed in the housing (12) for controlling the print head to print indicia on the medium (M) during a printing sequence wherein the control circuit comprises compensation means for reducing image distortion based on detecting the position of the nozzles during the printing sequence. In one embodiment, the control circuit compensates for image distortion that is the result of sweeping the housing (12) across a non-linear path.
Patent CA-2240242-A1 (CA)
Inventor: WEBSTER RONALD B
IPC: B41J29/46
Filed: 1993-10-15
Abstract: Printing apparatus for printing on a strip of sheet material comprising a printing head, platen means on which a strip of sheet material is moved and positioned to be printed upon by the printing head, feeding means for moving the strip of sheet material over the platen means and relative to the printing head during printing by the head, and strip detection means associated with the platen means for detecting the absence of the strip at the platen means and producing a corresponding warning signal.
Patent CA-2240386-A1 (CA)
Inventor: YAMAOKA NAOTO
IPC: C12N15/82
Filed: 1996-12-13
Abstract: A process for producing a plant resistant to pathogenic molds by integrating a DNA sequence coding for glucan elicitor receptors into plant chromosomes to effect expression; a plant resistant to pathogenic molds, which contains the DNA sequence coding for glucan elicitor receptors introduced thereinto and expressed therein; and the use thereof.
Patent CA-2240831-A1 (CA)
Inventor: STEVENS JOHN K
IPC: G01N33/574
Filed: 1997-01-06
Abstract: The instant invention relates to methods and products for the diagnosis of mutations in the von Hippel-Lindau tumor suppressor gene. More specifically, the products are DNA oligonucleotides for use in amplifying and sequencing genomic DNA and kits including these oligonucleotides. The method of the invention relates to a hierarchical system for cost-effective diagnosis of von Hippel-Lindau tumor suppressor disease-associated mutations.
Patent CA-2241352-A1 (CA)
Title: Solid catalyst compound for polymerization of olefins
Inventor: SAUDEMONT THIERRY
IPC: C08F4/659
Filed: 1998-06-29
Abstract: A method for the preparation of solid catalytic composition used for (co)polymerisation of olefins, comprises: (a) formation of solid (S1) by reacting a support in particle form and a halogen derivative represented by formula: R<1>M<1>X<1>3; (in which R<1> = hydrocarbon radical; M<1> = silicon, germanium or tin; and X<1> = halogen;) (b) reaction between (S1) and compound (C), which can graft at least one group with a cyclo-alkadienyl skeleton (L) to M<1>, at least one C atom from cyclo-alkadienyl radical being bonded to at least one H atom; the reaction giving a solid (S2); (c) reaction between (S2) and deprotonating compound (D) with formula: R<2>M<2>X<2>n; (in which R<2> = H or hydrocarbon radical; M<2> = sodium, potassium, lithium or magnesium; X<2> = halogen; and n = 0 if M<2> = lithium, sodium or potassium or n=1 if M<2> = magnesium;) the reaction giving solid (S3); and (d) reaction between (S3) and transition metal derivative with formula: R<3)<y-z)M<3>Xz; (in which R<3> = hydrocarbon; M<3> = transition metal; X = halogen; y = 3 or 4; and z = 1 - y). Also claimed are: (i) catalytic solids obtained by above method; and (ii) method for polymerisation of at least one olefin in gaseous phase.
Patent CA-2241961-A1 (CA)
Title: Production of poly(ethylene 2,6-naphthalate)
Inventor: STOUFFER JAN M
IPC: C08G63/80
Filed: 1996-12-31
Abstract: Disclosed herein is a novel crystalline form of low molecular weight poly(ethylene 2,6-naphthalate). This crystalline form may be produced from molten or glassy low molecular weight poly(ethylene 2,6-naphthalate) material by means of rapid heat transfer to or from the material. The poly(ethylene 2,6-naphthalate) composition is suitable for use as a starting material for solid-state polymerization in order to produce polymers of higher molecular weight.
Patent CA-2242890-A1 (CA)
Title: Method for preparing nickel fine powder
Inventor: TOSHIMA YOSHIHARU
IPC: B22F1/052
Filed: 1998-07-09
Abstract: A method for preparing nickel fine powder is herein disclosed, which comprises the steps of mixing an aqueous sodium hydroxide solution comprising, on the basis of the total weight of the sodium hydroxide present in the aqueous solution, 75 to 85% by weight of liquid caustic soda as specified in JIS K 1203 and 25 to 15% by weight, in total, of at least one of sodium hydroxide as specified in JIS K 8576 and solid caustic soda as specified in JIS K 1202, with an aqueous solution of nickel sulfate to form nickel hydroxide, then reducing the resulting nickel hydroxide with hydrazine and recovering nickel fine powder produced.  The nickel fine powder prepared by the method has an average particle size of the primary particles ranging from 0.1 to 0.9 µ m, a D9 0 value of not more than 2.1 µ m and a tap density of not less than 3.5 g/cc.  The nickel fine powder has a low degree of aggregation, a narrow particle size distribution and a high tap density and therefore, the powder is quite suitably used as a material for producing an internal electrode for a laminated ceramic condenser.
Patent CA-2243360-A1 (CA)
Title: Belt tensioner
Inventor: BAKKER EMILE A M
IPC: F16H7/12
Filed: 1998-07-16
Abstract: A belt tensioner of the Zed type with a pivot-arm, a pulley attached to the pivot-arm for receiving a belt load, a pivot, a base, and a torsion spring operatively connected between the pivot-arm and base and wherein damping of the pivot-arm is primarily provided by a pivot bushing in response to the belt load and a force generated by the spring.
Patent CA-2249219-A1 (CA)
Title: Method of making liquid crystal dysplay system
Inventor: LERNER JEREMY M
IPC: B41M3/00
Filed: 1997-02-18
Abstract: Systems and methods for embedding optical elements (20) in an optical device are described. A method includes: providing a resin layer (30) with a replica surface topography; cutting the resin layer to form an optical element layer that includes the replica surface topography; coating the replica surface topography with a layer, providing a substrate (60) having a substrate refractive index; and connecting the layer to the substrate with an index matching material having a matching refractive index that is substantially equal to the substrate refractive index. The systems and methods provide advantages in that surface topography is replicated with enhanced overall cost effectiveness.
Patent CA-2249931-A1 (CA)
Title: Portable skate sharpening device
Inventor: SMITH DAVID GEORGE
IPC: B24B3/00
Filed: 1998-10-09
Abstract: A portable skate sharpening device comprising a body part having a support portion with a lower surface suitable for being clamped or bolted to a flat support in stable manner, or for being held by a vice, and having bearings supporting a rotatable shaft which is parallel to the lower surface. The shaft has front and rear end portions projecting from the body part, the rear end portion being suitable for attachment to a hand drill chuck, and a cylindrical grinding drum is attachable to the front end portion of the shaft. The body part has guide means for guiding a manually held skate blade along a path parallel to the shaft and into radial contact with the grinding drum. The grinding drum includes a readily replaceable abrasive sleeve mounted on a metal cylindrical holder.
Patent CA-2250720-A1 (CA)
Title: Etancheite radiale pour des prechauffeurs d'air
Inventor: FIERLE KURT M
IPC: F28D19/04
Filed: 1997-03-31
Abstract: L'invention concerne un préchauffeur d'air rotatif (10) à récupérateur de chaleur ayant un rotor (14) monté sur un arbre de rotor central (16) pour rotation à l'intérieur d'une enceinte (12) entourant le rotor. Le rotor (14) porte un matériau absorbant la chaleur qui est exposé successivement à un flux de gas chaud et de gaz à préchauffer. Un système d'étanchéité radiale (42, 42?1¿), comprenant une bande d'étanchéité flexible (74) est monté au bord d'extrémité chaud de chaque cloison radiale du rotor (14), pour assurer l'étanchéité entre les cloisons et la face opposée de la plaque d'un secteur du logement (12), lorsque le rotor (14) tourne. Une bande d'étanchéité flexible (74) a une configuration effiliée pour que l'extrémité distale (80) de la bande d'étanchéité (74) et la face opposée de la plaque de secteur (20, 22, 24) délimitent un espacement radial contrôlé (86), quand le préchauffeur d'air (10) est alimenté en air chaud. Une extrémité protectrice (106) est montée sur l'extrémité distale (80) de la bande d'étanchéité flexible (74) pour empêcher une défaillance précoce par suite d'une fracturation du bord. La feuille de support rigide (58) appuie sur la bande d'étanchéité flexible (74) et lui confère une certaine rigidité, ce qui permet d'éliminer les risques de bâillement par suite des différentiels de pression gaz-air.
Patent CA-2250931-A1 (CA)
Title: Ciphering and deciphering of multimedia data
Inventor: POPP HARALD
IPC: H04N7/14
Filed: 1997-04-14
Abstract: A data for encrypting multi-media data comprises the entry of an encryption index (18) into a determination data block (10, 30) of said data which indicates an encryption algorithm to be used. In reaction to the encryption index, an encryption algorithm is selected in the determination data block (10, 30) from a plurality of such algorithms. The multi-media data are encrypted using the selected encryption algorithm. Various other entries in the determination data block (10, 30), to which the multi-media data are allocated, free an encryption device and permit fast access to a databank of encrypted multi-media data and the customer and data-specific use of the multi-media data while respecting copyrights.
Patent CA-2251437-A1 (CA)
Title: Removable bottle handle
Inventor: KOCHAN BRIAN R
IPC: B65D23/10
Filed: 1998-10-22
Abstract: A removable handle for use with large soft drink bottles compressibly engages the circumference of the body of the bottle. The handle has a resilient, expandable bottle surrounding sleeve to engage the bottle with a hand grip extending outwardly therefrom.
Patent CA-2252595-A1 (CA)
Inventor: KLAYMAN ARNOLD I
IPC: H04S3/00
Filed: 1997-04-28
Abstract: An audio enhancement system and method for use in a surround sound environment creates a more diffuse and continuous sound field from a multi-channel, multi-speaker reproduction environment. Multiple audio source signals generated from an audio recording, which are intended for speakers placed in front of and behind a listener, are isolated into pairs and processed to create corresponding pairs of component audio signals. Each pair of component audio signals is generated, at least in part, from the information present in both corresponding audio source signals. The individual component audio signals are then selectively combined to form enhanced output signals so that each enhanced output signal is modified as function of a plurality of audio source signals.
Patent CA-2252853-A1 (CA)
Inventor: GHOSH CHANCHAL KUMAR
IPC: C11D3/00
Filed: 1997-04-25
Abstract: A detergent composition comprising cellulase enzymes and water soluble and/or dispersible, modified polyamines having functionalized backbone moieties which provide depilling benefits is provided. The cellulase enzymes are present in an amount capable of degrading cellulose. In addition, at least about 0.1 % by weight of the detergent composition is a surfactant.
Patent CA-2253762-A1 (CA)
Title: Apparatus and switching method for electric power transmission lines
Inventor: COUTURE PIERRE
IPC: H02G7/00
Filed: 1998-12-04
Abstract: The switching apparatus is intended to be used with a segment of an electric power line having several phase lines. Each of the phase lines has several conductors electrically insulated one from the other and connected in parallel. The conductors of each phase line are short-circuited among them at two extremities of the segment. The apparatus comprises pairs of switches connected in parallel, for selectively opening and closing the conductors of each phase line, a detecting device for detecting current operating conditions of the segment, and a controlling device for controlling the pairs of switches according to the current operating conditions of the segment. The present invention also relates to a switching method.
Patent CA-2255406-A1 (CA)
Inventor: KRISHNAN SANJEEV
IPC: G06F9/44
Filed: 1998-12-04
Abstract: One or more filters may be included in each object implementation in a CORBA distributed object system. Each CORBA server object maintains a registry of filters containing unique identifiers and specifications for each of the filters and the order in which the filters must be applied. The filters execute selected code either before or after the conventional marshaling and unmarshaling which take place during a method invocation in the system. The CORBA client object builds a filter registry, from information that it received from the server. Filters may also be present in the client side of the ORB in order to execute code before and after the marshaling and unmarshaling that takes place in the client side of the ORB and these latter filters are also included in the client filter registry. The client then uses its filter registry to invoke the filters during a subsequent method invocation. The client also receives a time stamp from the server to identify the current filter composition. In method invocations to the server, the client includes the value of the time stamp it received and the server returns an exception to the client if the time stamps do not match. In response to this exception, the client reinvokes the _retrieve_filters() method in order to obtain the most recent filter registry contents and time stamp from the server.
Patent CA-2255709-A1 (CA)
Title: Perfectionnement d'un procede de preparation de hcn anhydre
Inventor: MOSS PHILIP OSBORNE
IPC: C01C3/02
Filed: 1997-05-19
Abstract: La présente invention concerne un procédé de préparation par lots ou en continu de HCN anhydre. Ce procédé consiste à faire réagir dans un réacteur un métal alcalin ou des sels de métaux alcalino-terreux de cyanure avec des acides minéraux, cette réaction étant suivie d'un transfert vers une colonne de fractionnement. Il en résulte une faible formation de polymères pour une production élevée de produit.
Patent CA-2255886-A1 (CA)
Title: Adaptive array antenna
Inventor: EBINE YOSHIO
IPC: H01Q3/26
Filed: 1998-05-29
Abstract: The outputs of antenna elements 11l to 11M of a wide directional pattern 12 are distributed by a distributor 13 to respective channel parts 14l to 14N, and in each channel part 14i (i=1, 2,..., N), its connection points 31l to 31M to the distributor 14 are divided in groups of P=4; four connecting ends of the respective groups are connected via level-phase regulators 23 1 to 23 4 to combiners 22 1 to 22L (L=M/P), then the combined outputs therefrom are applied to receivers 15 1 to 15L, and the outputs therefrom are combined after being applied to regulators 16 1 to 16L which are adaptively controlled. In the channel part 14 1, coefficients W1 to W4 are set in regulators 23 1 to 23 4 to obtain a subarray directional pattern 24 and a combined directional pattern 19 is controlled within the range of the subarray directional pattern, and in another channel part coefficients W5 to W8 are set in the regulators 23 1 to 23 4 to obtain a subarray directional pattern 26; by setting the regulators 23 1 to 23 4 of each channel part, a wide area is covered as a whole.
Patent CA-2260940-A1 (CA)
Title: Methods for isolating nucleic acids using alkaline protease
Inventor: SHULTZ JOHN
IPC: C07H21/02
Filed: 1997-07-29
Abstract: The present invention discloses a novel method for treating nucleic acid solutions with alkaline protease substantially to inactivate proteins in the solution, particularly proteins capable of degrading nucleic acid material of interest in the solution. The present invention also discloses a novel method for isolating a nucleic acid material, such as RNA or DNA, from a biological sample by incubating an alkaline lysate of the sample with alkaline protease. In a preferred aspect of the method of isolation of this invention, a resin matrix of silica particle is used to isolate a nucleic acid material from a nucleic acid solution treated with alkaline protease. Application of the disclosed methods to a biological sample or to a nucleic acid solution results in nucleic acid material which is sufficiently free of contamination with active proteins to be useful for a variety of different practical applications.
Patent CA-2261005-A1 (CA)
Inventor: KRAMER RACHEL H
IPC: D21F1/00
Filed: 1999-02-03
Abstract: A multilayer papermaking fabric having interwoven machine direction (MD) and cross-machine direction (CMD) yarns, the CMD yarns defining at least upper and lower CMD yarn subsets which are interwoven with the MD yarns in a repeat pattern such that the MD yarns have substantially more interweavings with the upper CMD yarn subset than with the lower CMD yarn subset. The lower subset CMD yarns define machine side floats under at least seven MD yarns and each MD yarn interweaves with only two lower subset CMD yarns in a given repeat.
Patent CA-2262677-A1 (CA)
Inventor: SEARS JAMES B
IPC: B22D11/128
Filed: 1997-08-05
Abstract: An improved guide segment assembly for a continuous casting machine includes a support frame (12) and a guide segment (10) that includes a bottom segment portion (16) having a number of support rolls (18) for engaging a bottom surface of a continuously cast strand, and a top segment (20) having a number of guide rolls thereon for engaging a top surface of the strand. A force applicator (24) is provided for urging the top and bottom segment portions (20, 16) toward one another against mechanical stops (25) in order to provide support for the strand that is sufficient to counter ferrostatic pressure within the strand. A resilient mechanism (32) is positioned between the support frame (12) and the guide segment (10) for permitting limited movement between the support frame (12) and guide segment (10) during abnormal casting conditions. As a result of the resilient mechanism (32), both the support rolls (18) and the guide rolls will be amply protected against overload conditions during abnormal conditions such as cold withdrawals.