baber/WOPTO huggingface dataset:
Patent CA-2193078-C (CA)
Inventor: MORGAN KEVIN P
IPC: G01R33/09
Filed: 1995-05-04
Granted: 2001-08-07
Abstract: A leakproof plastic zipper with integrated end stops for a zipper slider particularly suited for thermoplastic bags. An increased flange height above the interlocking elements of the zipper and an increased plow depth on the separator of the slider extending down between the flanges provide a means of stopping the travel of the slider past the ends of the zipper.  The separator structure depending from the slider has a configuration in vertical cross-section corresponding to an inverted T, the horizontal portion of the T having the ends thereof adapted to be received in window structure in the flanges above the interlocking elements and adjacent one of the integrated end stops.
Patent CA-2193478-C (CA)
Title: Tinnitus masking using ultrasonic signals
Inventor: LIPPA ARNOLD S
IPC: A61F11/00
Filed: 1995-06-22
Granted: 2001-04-10
Abstract: An apparatus for treating tinnitus involves generating a noise signal, by means of noise signal generator (10), to mask the ringing or buzzing in the ears caused by tinnitus and transposing the noise signal into the ultrasonic frequency range. As such, the masking signal effectively masks the tinnitus noise without interfering with the subject's perception of normal sounds such as human speech. In an alternative embodiment, human speech is transduced into electrical signals, transposed to the ultrasonic frequency range, and physically applied to the patient while tinnitus masking signals in the auditory range are applied to the patient.
Patent CA-2196233-C (CA)
Title: Ready mixed setting-type joint compound, and method of making same
Inventor: PATEL JASHBHAI M
IPC: C04B40/06
Filed: 1997-01-29
Granted: 2001-08-07
Abstract: A process for the production of a ready-mixed setting-type joint compound includes the use of calcium sulfate hemihydrate, water, and a set-retarding agent.  The retarder includes a polymer composition including acrylic acid and acrylamide monomer units, for example a copolymer (or a mixture of copolymers) of acrylic acid and acrylamide or a blend of a homopolymer of acrylic acid and a homopolymer of acrylamide.  The joint compound can be combined with an accelerator including a metallic salt.  The joint compound of the invention can be formulated either as a lightweight joint compound or as a conventional weight joint compound.  The joint compounds provide short setting times, reduced shrinkage, reduced preparation time, and beneficial application properties.
Patent CA-2199205-C (CA)
Inventor: DZIABA ROMAN J
IPC: F16B39/286
Filed: 1997-03-05
Granted: 2002-02-19
Abstract: An article engagable and retainable about a threaded shaft, which in one embodiment is a self locking nut a first end, an opposing second end, and a threaded bore with an axial dimension for receiving the threaded shaft. A plurality of resilient posts extend along the body member and are inclined inwardly toward the bore axis to provide a prevailing torque on a threaded shaft disposed in the threaded bore. A pair of resilient arms with end portions extend from each resilient post. Each resilient arms is inclined toward the second end of the body member to provide a prevailing torque on the threaded shaft disposed in the threaded bore. The resilient posts and resilient arms contribute to retaining the body member about the threaded shaft. The lock nut has a relatively low first installation torque and a relatively consistent torque performance with reduced statistical spread over several nut installation and removal cycles, which meet an established torque specification.
Patent CA-2201166-C (CA)
Inventor: ITADANI MOTOAKI
IPC: C21D8/10
Filed: 1996-08-21
Granted: 2002-11-26
Abstract: A process for reducing a raw steel pipe obtained by a solid phase bonding pi pe manufacturing method or a welding pipe manufacturing method is carried out b y heating the steel pipe to a temperature in excess of 100 ·C and lower than 8 00 ·C before it is reduced, restricting the temperature of the steel pipe durin g a rolling operation to a level in a specific range, controlling the temperature difference of the steel pipe in the circumferential direction thereof at the inlet side of a reducing mill to be in a specific range, and also controlling the temperature of the steel pipe between the stands of the  reducing mill. This enables the steel pipe to be reduced with a low load wit h the work hardening effect minimized without deteriorating the properties of the surface thereof, and the dimensional precision of the product pipe to be  maintained at a high level.
Patent CA-2207989-C (CA)
Title: Chaine de traction multicourant et son procede de mise en oeuvre
Inventor: MAI SERGE
IPC: H02M7/12
Filed: 1997-06-03
Granted: 2004-05-25
Abstract: La présente invention porte sur un chaîne de traction multicourant mettant en jeu une phase d'alimentation sous tension monophasée et une phase d'alimentation sous tension continue, caractérisée en ce qu'un même ensemble de condensateurs (7,10) est utilisé lors de l'une ou l'autre desdites phases d'alimentation. La présente invention porte également sur un procédé de mise en oeuvre d'une telle chaîne de traction multicourant.
Patent CA-2209669-C (CA)
Title: Composition and methods for transdermal delivery of acid-labile drugs
Inventor: LI CHENSHENG
IPC: A61K47/10
Filed: 1996-01-11
Granted: 2007-03-27
Abstract: A transdermal penetration-enhancing, drug acid-lability reducing composition and related method are described. Specifically, the transdermal composition comprises: (a) a therapeutically effective amount of a pharmacologically active drug which is subject to acid catalyzed degradation; (b) a pharmaceutically acceptable carrier substantial ly free of a lower alkanol; and (c) a penetration-enhancing amount of a functional derivative of a fatty acid. Such compositions increas e the usefulness of transdermal compositions that rely upon an organic acid such as oleic acid penetration enhancer.
Patent CA-2209706-C (CA)
Title: Use of a reactor stirred by an archimede-type screw for faujasite lsx synthesis
Inventor: PLEE DOMINIQUE
IPC: C01B39/20
Filed: 1997-07-11
Granted: 2001-01-23
Abstract: The synthesis of faujasite LSX comprises ripening and crystallising a gel of molar composition 0.7-0.8 sodium oxide /sodium oxide + potassium oxide ((Na2O)/(Na2O+K2O)), 91-130 water/aluminium oxide (H2O/Al2O3), 1.8-2.2 silicon dioxide/aluminium oxide (SiO2/Al2O3) and 5.5-8 (Na2O+K2O)/Al2O3. The gel is stirred by an Archimedes screw type agitator during ripening and crystallisation.
Patent CA-2210960-C (CA)
Title: Improved two-phase dispensing systems utilizing bellows pumps
Inventor: LUND MARK THOMAS
IPC: B05B7/00
Filed: 1995-07-20
Granted: 2000-12-05
Abstract: The present invention provides an improved manually operated dispensing system for dispensing a liquid product in atomized or foam form. More particularly, the present invention provides an improved manually operated pump for use in such dispensing system which incorporates at least one collapsible bellow (40) as a pump chamber. The use of a bellow (40) as the air chamber in an air/liquid pump mechanism allows the pressure/volume profile of the air supply to be tailored to supply the desired air/liquid ratio throughout the travel of the pump mechanism. The shape of the air bellow (40) is preferably selected to provide an initially large volume reduction in the air chamber (80) as the bellow (40) collapses to provide a rapid rise in air pressure available for dispensing. In a preferred embodiment, dual bellows (40, 45) are utilized (one for liquid (45), one for air (40)) in a concentric arrangement to allow the pressure/volume profile for each to be tailored to achieve the desired spray or foam characteristics. Inlet and outlet valves unitarily formed with the liquid bellows are disclosed, as is the use of a pre-compression mechanism for the liquid outlet valve to allow the air pressure to build to the level required for satisfactory performance before the liquid begins to flow.
Patent CA-2213394-C (CA)
Title: Method to obtain male sterile plants
Inventor: MICHIELS FRANK
IPC: A01H5/00
Filed: 1996-02-21
Granted: 2010-05-04
Abstract: A cell of a male-sterile plant having in its nuclear genome foreign DNA comprising i) a male-sterility gene encoding a sterility RNA, protein or polypeptide which, when produced or overproduced in a stamen cell of the plant, significantly disturbs the metabolism, functioning and/or development of the stamen cell, and, a sterility promoter directing expression of the male-sterility DNA selectively in specific stamen cells of said plant, the male-sterility DNA being in the same transcriptional unit as, and under the control of, the sterility promoter, and ii) a coregulating gene comprising a coregulating DNA encoding a coregulating RNA, protein or polypeptide which, when produced in plant cells wherein said sterility RNA, protein or polypeptide is produced, prevents the activity of said sterility RNA, protein or polypeptide, and a coregulating promoter which is selected from the group consisting of a promoter directing expression of said coregulating DNA in non-stamen cells of said plant, while directing low-level expression in said specific stamen cells; and a promoter consisting of a minimal promoter element, whereby said coregulating DNA is in a transcriptional unit which is different from the transcriptional unit of said sterility DNA.
Patent CA-2218905-C (CA)
Inventor: MCKAY DANNY NEIL
IPC: H04L29/04
Filed: 1997-07-08
Granted: 2001-02-13
Abstract: In a communications network having a plurality of stations and a shared common communications medium using a collision avoidance media access protocol for communication between the stations; in which medium access is granted to a pair of stations obtaining a successful reservation of the medium; the pair of stations comprising a requester station and a target station, the requester station comprises a primary station, and the target station comprises a secondary station; wherein the primary station coordinates communication to the secondary station; a method of maintaining  thereservation in the event a transmission of a frame of data is received from a third station not participating in the reservation comprising: each station participating in the reservation examining all received frames to determine the transmitter address thereof; ignoring frames transmitted from a non-participating station continuing with the reservation.
Patent CA-2219119-C (CA)
Inventor: GOLD LARRY
IPC: C07H21/00
Filed: 1996-05-02
Granted: 2012-10-23
Abstract: This invention discloses a method for preparing a therapeutic or diagnostic complex comprised of a nucleic acid ligand and a lipophilic compound or non-immunogenic, high molecular weight compound by identifying a nucleic acid ligand by SELEX methodology and associating the nucleic acid ligand with a lipophilic compound or a non-immunogenic, high molecular weight compound. The invention further discloses complexes comprising one or more nucleic acid ligands in association with a lipophilic compound or non-immunogenic, high molecular weight compound.
Patent CA-2219584-C (CA)
Title: Method of granulating powder and apparatus for it
Inventor: NAGAO KOJI
IPC: B29C67/02
Filed: 1997-10-29
Granted: 2003-12-23
Abstract: The present invention is intended for granulation of powder comprising the steps of mixing a powder and a mist of binder by fluidizing air flow, collecting the mixture of the powder and the binder on a filter surface thereby forming a powder layer thereon, peeling off the powder layer from the filter surface thereby crushing the powder layer into pieces, returning the crushed fragments into the fluidizing air flow and mixing them with the mist of binder again, repeating the steps until the desired granule is obtained.
Patent CA-2234735-C (CA)
Inventor: PUGH DANA
IPC: B65D88/10
Filed: 1998-04-14
Granted: 1999-07-27
Abstract: A storage container for barrels of liquid such as fuel arranged on their sides has a rigid base which is rectangular in plan to define two side edges and two end edges and dimensioned in width between side edges to receive a length of a barrel lying on its side across the width and in length between the end edges to receive a plurality of barrels side by side. The base has a bottom closed wall and four upstanding walls each at a respective edge of the bottom wall so as to define a sump to receive liquid from one or more of the barrels in the event of leakage. Across the top of the base is a pair of straps and end flanges to allow rolling of the barrels across the base. The container has two side walls and two end walls. Both of the end walls being hinged at a bottom edge for movement to an open ramp position to allow the barrels to be rolled into and out of the container. A cover panel which can be moved from a flat collapsed condition in which the sides a folded down to an operating condition attached to and extending over the side walls at a height to receive the rolled barrels. A lock assembly including a hanging lug on the cover panel locks the end wall in the raised position.
Patent CA-2237793-C (CA)
Inventor: HANSEN DAVID M
IPC: B32B7/08
Filed: 1996-11-13
Granted: 2005-02-01
Abstract: Highly insulating and substantially pointed connector rods (10) used in making highly insulative composite wall structures. At least a substantial portion of the connector rod (10) is injection molded in a single step from an appropriate resinous material or moldable plastic. The connector rod (10) has a first substantially pointed end (20) in a penetrating segment (14) for facilitating entry through an insulating layer (60) and for making abutting contact with a form sidewall (70) when manufacturing a composite wall structure using a cast-in-place method. The opposite end, or trailing segment (18) also includes a substantially pointed end (24) that makes abutting contact with another form sidewall (70). A middle or mesial segment (16) resides within the insulating layer (60), which is sandwiched between two structural layers (90) of a hardenable material, such as concrete. A first ridge or flange (26) at the intersection between the mesial (16) and trailing segments (18) limits the depth of penetration of th e connector rod (10) when inserted through the insulating material. A second ridge or flange (36) that is attached thereafter to the connector rod (10) at the intersection between the mesial (16) and penetrating segments (14) locks the connector rots (10) in place in a desire d orientation within the insulating layer (90).
Patent CA-2238642-C (CA)
Title: Method and apparatus for word counting in continuous speech recognition useful for reliable barge-in and early end of speech detection
Inventor: SETLUR ANAND RANGASWAMY
IPC: G10L15/00
Filed: 1998-05-25
Granted: 2002-02-26
Abstract: Speech recognition technology has attained maturity such that the most likely speech recognition result has been reached and is available before an energy based termination of speech has been made. The present invention innovatively uses therapidly available speech recognition results to provide intelligent barge-in forvoice-response systems and, to count words to output sub-sequences to provide paralleling and/or pipelining of tasks related to the entire word sequence to increase processing throughput.
Patent CA-2239502-C (CA)
Inventor: STRASSLE MARCEL
IPC: F16B12/32
Filed: 1996-12-16
Granted: 2006-05-09
Abstract: L'invention concerne un dispositif de serrage permettant d'assembler de manière séparable deux pièces profilées dans la première desquelles un noyau d'insertion (1) peut être introduit et fixé. Dans ce noyau d'insertion, un coulisseau (7) à déplacement axial porte deux éléments de serrage (11) pivotants munis chacun d'un crochet de serrage (13; 14) qui peut être introduit au moins partiellement dans une ouverture d'une seconde pièce profilée (15), afin d'exercer une pression de serrage contre une partie de cette seconde pièce de serrage (15), qui ferme partiellement ladite ouverture. Le noyau d'insertion (1) comporte des éléments excentriques (5) servant à déplacer le coulisseau (7) dans le sens axial. Le noyau d'insertion (1) comprend deux surfaces (43) obliques qui permettent de déplacer l'élément de serrage transversalement pendant son déplacement axial. L'élément de serrage (11) comprend outre le crochet de serrage (13; 14), une pièce sous forme de bande munie d'une extrémité cintrée pour former un crochet de charnière (34). Le coulisseau (7) comporte une partie terminale (9) plate avec une cavité (10) dans laquelle le crochet de charnière (34) peut pivoter avec néanmoins un léger jeu.
Patent CA-2242234-C (CA)
Inventor: YOSHIKAWA MINORU
IPC: H01L23/36
Filed: 1998-06-29
Granted: 2002-08-13
Abstract: A cooling structure is provided for a multichip module on which integrated circuit devices (i.e., LSI devices) having heat-radiation surfaces are mounted, wherein there are provided a heat sink, thermal conduction blocks and thermal compounds. Recess portions are formed at a surface of the heat sink in connection with the integrated circuit devices of the multichip module. Low melting point metal material such as solder is supplied to interiors of the recess portions of the heat sink. The thermal conduction blocks are partially inserted into the interiors of the recess portions under the condition where the low melting point metal material is heated and melted, so that the thermal conduction blocks temporarily float in the melted material. To avoid heat transfer toward the integrated circuit devices, a heat insulating sheet is provided on the thermal conduction blocks. Then, the low melting point metal material is solidified, so the heat insulating sheet is removed. The thermal compounds are placed on the thermal conduction blocks. Thus, the integrated circuit devices and the thermal conduction blocks are connected together by means of the thermal compounds. Because of temporary floating of the thermal conduction blocks in the melted material, it is possible to absorb dispersion in heights and slopes of the heat-radiation surfaces of the integrated circuit devices.
Patent CA-2246415-C (CA)
Inventor: LIANG ZHI-ZHONG
IPC: C08L95/00
Filed: 1997-02-14
Granted: 2005-01-25
Abstract: Il est possible d'incorporer de manière stable au bitume des polymères styréniques normalement incompatibles en recourant à un copolymère élastomère à trois blocs solubilisé ou compatibilisé dans la phase bitumineuse. Ledit copolymère, une fois incorporé à la phase bitumineuse continue présente des domaines polystyréniques dispersés dans le bitume, ou une unité réceptrice qui stabilise le polystyrène particulaire et l'empêche de se dissocier du bitume.
Patent CA-2258535-C (CA)
Title: Bicarbonate-containing medical solution packaging and ph indicating device
Inventor: SHINOMIYA SHINO
IPC: B65D79/02
Filed: 1997-06-13
Granted: 2002-05-28
Abstract: A package for a container of liquid medicine in which a gas permeable plastic container having sealed therein liquid medicine containing bicarbonate is packaged by a gas impermeable plastic packaging material, wherein a space between the plastic container and the plastic packaging material is made to be a carbonic acid gas atmosphere, wherein a pH indicator is disposed in the space in which liquid containing bicarbonate and a pH indicator adapted to change its color in accordance with change in pH of the liquid are sealed in a gas permeable plastic small container. According to the package, it is possible to easily conduct a visual confirmation of the pH change in the liquid caused by long-time preservation or troubles generation of pin holes in a secondary packaging material and deterioration of the liquid attributed to the pH change.
Patent CA-2259853-C (CA)
Title: Apparatus and method for determining a drilling mode to optimize formation evaluation measurements
Inventor: HEIDLER RALF
IPC: E21B47/12
Filed: 1999-01-21
Granted: 2004-05-04
Abstract: There are many natural pauses during rotary drilling operations where a portion of the drill string remains stationary. Pauses include drill pipe connections.  circulating time. and fishing operations. These pauses are used to obtain formation evaluation measurements that take a long time or that benefit from a quiet environment, as opposed to the naturally noisy drilling environment. Various techniques that are sensitive to the mud flow, weight-on-bit, or motion of the drill string may be used alone or in combination to identify the drilling mode and control the data acquisition sequence.
Patent CA-2261098-C (CA)
Inventor: AGOURIDAS CONSTANTIN
IPC: A61P31/04
Filed: 1997-07-23
Granted: 2007-01-02
Abstract: Compounds of formula (I), wherein R is hydrogen, alkyl optionally substituted by halogen or a (CH2)mAr radical or a radical (a), where m is an integer from 1 to 8, each of n and p, which are the same or different, is an integer from 0 to 6, each of A and B, which are the same or different, is hydrogen or halogen or alkyl, and Ar is aryl or heteroaryl, and Z is hydrogen or a carboxylic acid residue; a method for preparing same, and the use of said compounds as drugs, are disclosed.
Patent CA-2264269-C (CA)
Title: Method for pressure oxidizing gold-bearing refractory sulfide ores having organic carbon
Inventor: SIMMONS GARY L
IPC: C01G7/00
Filed: 1997-09-11
Granted: 2005-04-05
Abstract: A method for treating refractory gold-bearing ores that have both sulfide material with which the gold is associated and from which the gold is dificult to separate and having organic carbonaceous material having an affinity for at least one of gold and a gold complex. A feed slurry (2) comprising the mineral material feed slurried in an aqueous liquid, is subjected to pressure oxidation (6). A gas (4) that is rich in oxygen is contacted with the feed slurry to provide oxygen to oxidize sulfide sulfur in the mineral material to a sulfate form. Offgases (10) are collected for treatment and eventual release. The effluent product (8) includes solid effluent comprising gold, which can be effectively recovered by carbon-in-leach cyanidation of the effluent product.   In many cases, gold recovery according to the present invention is increased substantially over standard pressure oxidation techniques.
Patent CA-2273897-C (CA)
Title: Construction in situ d'enceinte de confinement sous un site radioactif ou renfermant des dechets dangereux
Inventor: CARTER ERNEST E JR
IPC: C04B111/70
Filed: 1997-12-05
Granted: 2005-03-29
Abstract: L'invention porte sur un procédé de construction, de vérification et d'entretien d'enceintes souterraines destinées à contenir et à isoler des zones où sont enfouies des matières radioactives. Ce procédé utilise une technique faisant intervenir un phénomène de portance par flottation et ce, afin d'isoler un bloc de terrain (78), contenant les contaminants (73), du sol environnant. Un revêtement synthétique imperméable (27) est noyé dans la structure de l'enceinte afin de mieux protéger l'intégrité du dispositif. Celle-ci est contrôlée par des systèmes de détection (48, 49, 50, 51) installés à l'intérieur comme à l'extérieur de l'enceinte hermétique. Ce procédé évite d'avoir à effectuer des excavations ou des forages dans les secteurs contaminés.
Patent CA-2276874-C (CA)
Inventor: PATEL SARVAR
IPC: H04L9/08
Filed: 1999-07-02
Granted: 2003-02-25
Abstract: In the method for establishing a session key, a network and a mobile transfer codes between one another.      The mobile and the network perform mutual authentication based on the codes. Besides performing this mutual authentication, the mobile and the network to establish the session key based on the codes. In one embodiment, the messages forming part of the intended session are sent with the codes, and form a basis upon which the codes for authentication have been derived.