baber/WOPTO huggingface dataset:
Patent CA-2244415-A1 (CA)
Title: Direct tension indicator washer
Inventor: SHARP DAVID L
IPC: F16B31/02
Filed: 1997-02-06
Abstract: A pre-load indicating washer (40) for properly tensioning a joint held together by an externally threaded member and an internally threaded member. The pre-load indicating washer (40) has a plurality of protuberances (42), struck and partially sheared from the annular body of the washer (40), which are pushed under load back into a corresponding number of indentations (46) in the annular body which are formed when the protuberances (42) are formed. The protuberances (42) of the pre-load indicating washer (40) are curved in outline with no portion of the protuberances (42) extending radially outward beyond the outer periphery of the bearing surface of an externally threaded member when the pre-load indicating washer (40) is positioned adjacent the externally threaded member, or radially outward beyond the outer periphery of the bearing surface of an internally threaded member when the pre-load indicating washer (40) is positioned adjacent the internally threaded member.
Patent CA-2244498-A1 (CA)
Inventor: NADLER SHACHAR
IPC: G01N1/02
Filed: 1998-08-06
Abstract: An apparatus for collecting particulates and vapours from a contaminated surface includes a manifold having at least one nozzle receiving gas from a supply and directing at least one jet of gas onto a target area of the surface thereby to dislodge particulates and vapours from the surface. The manifold also has an orifice therein, one end of which is adjacent the target area. A pump draws gas and particulates and vapours dislodged from the target area of the surface into the orifice thereby to collect the particulates and vapours for analysis. A method for collecting particulates and vapours is also disclosed.
Patent CA-2244580-A1 (CA)
Title: New method for the control of flea beetles in canola
Inventor: KLITTICH CARLA JEAN
IPC: A01N47/40
Filed: 1998-08-04
Abstract: A method of protecting a plant susceptible to attack by a Phylotxeta spp. insect from said attack which comprises applying to the seed from which the plant grows an effective amount of a chloronicotinyl insecticide or a salt thereof, which insecticide is other than imidacloprid and thiamethoxam.
Patent CA-2245025-A1 (CA)
Title: Process for removing contaminants from thermally cracked waste oils
Inventor: STANCIULESCU MARIA
IPC: C10M175/00
Filed: 1998-08-13
Abstract: A process is described for removing contaminants from thermally cracked waste oil, e.g. used motor oil.  In the process the cracked waste oil is contacted with a solvent comprising methanol.  The thermally cracked waste oil is then separated from the solvent whereby a substantial portion of the contaminants are removed into the solvent.  Thereafter, the solvent is separated from the contaminants and recycled.
Patent CA-2246893-A1 (CA)
Inventor: MCNEIL MICHAEL
IPC: G01L19/00
Filed: 1998-09-08
Abstract: The present invention provides an adapter member for attaching a pressure transducer to a housing member which has a fluid pressure communication passageway. The pressure transducer has a threaded fitting having a fluid pressure communication passageway for connection to a fluid communication line, such as an air hose. The pressure transducer has a mounting arrangement for attachment to a surface, such as a panel. The adapter member has a first body portion having a threaded fitting for mating with the threaded fitting of the pressure transducer and the adapter member has a fluid pressure communication passageway. A portion of the adapter member has an axisymmetric external surface portion for sealing against an inner surface of the fluid pressure communication passageway in the housing member.
Patent CA-2247076-A1 (CA)
Title: Articulating guide arm for medical applications
Inventor: WARDLE JOHN L
IPC: A61B19/00
Filed: 1997-02-25
Abstract: A device (10) is provided for stabilizing and positioning an otherwise hand-held medical instrument (26), such as a biopsy power driver and probe, to ensure the ability to accurately place the probe into the breast and maintain position relative to a particular tissue site from any desired entry point. The device comprises a main arm (20) having a generally vertical portion (18) and a generally horizontal portion (30).      A clamping assembly (14) permits attachment of the apparatus (10) to a stationary object, which is preferably an examination table (11), and includes a locking clamp (22) having a gripping mode and a releasing mode for alternately gripping and releasing the main arm (20), and a lever assembly (23) for actuating the locking clamp (22) between the gripping mode and the releasing mode. A horizontal clamp (32), attached to the generally horizontal portion (30) of the main arm (20), provides support for an articulating arm assembly (16) having a first arm portion, or upper arm (36), and a second arm portion, or forearm (38), wherein the upper arm and forearm are attached together by an elbow joint (40), so that they may be articulated relative to one another about a common axis disposed through the elbow (40). A mounting bracket (44) for securing the biopsy power driver and probe (26) is attached to a distal end of the forearm (38). The elbow joint (40) attaching the upper arm (36) and forearm (38) of the articulating arm assembly (16) comprises a spring loaded counterbalance mechanism (52) which functions to support the weight of the medical instrument (26), thereby giving the instrument a weightless feel during the positioning process, which prevents fatigue on the part of a user and therefore permits more delicate and precise movements of the instrument.
Patent CA-2247293-A1 (CA)
Title: Distributed sensing apparatus
Inventor: PALMER JULIAN CHARLES BIMAN
IPC: G01M11/00
Filed: 1998-09-16
Abstract: The current invention is applicable to an optical fibre based distributed sensing system that operates according to the non-linear process of Stimulated Brillouin Scattering (SBS).  Such a sensing system that is based upon the Brillouin Optical Time Domain Analysis (BOTDA) technique relies upon the interaction between two lightwaves that have an optical frequency difference that lies in the microwave region.  It is important that this frequency difference is tunable and stable, and that at least one of the lightwaves can be pulsed.  The current invention describes a system that is capable of achieving these objectives, and can launch both lightwaves into one end of a single optical fibre (that operates as the distributed sensing medium) with minimum loss.
Patent CA-2248815-A1 (CA)
Title: Apparatus and methods for storing and releasing hydrogen
Inventor: HEUNG LEUNG K
IPC: F17C11/00
Filed: 1997-03-28
Abstract: A rechargeable device (20) that stores and discharges hydrogen is described.  The device stores hydrogen in a solid form and supplies hydrogen as a gas when needed. The solid storage medium (36) may be metal hydride in a ground particle form that avoids the need for compaction or other treatment. Dividers (28) partition a container into separate chambers, each provided with a matrix (26), formed from an appropriate material like a thermally-conductive aluminum foam, which forms a number of cells (27). For proper chamber size, the ratio of chamber length to container diameter should be between about 0.5 and 2.  Metal hydride particles (or other hydrogen storage medium) may be placed within the cells, which help prevent excessive particle settling. The container is provided with a hydrogen transfer port (32) through which hydrogen gas passes upon either discharging from or charging of the metal hydride particles. A filter may be placed within the port to allow hydrogen to flow but prevent particles from escaping.  A heat transferring surface (23) is formed by, for instance, a channel that is thermally coupled with the aluminum foam. Fluid flows through the channel (40) to deliver or remove heat during the respective hydrogen discharging or charging processes.
Patent CA-2250421-A1 (CA)
Title: Solenoid valve for starting fluid injection system
Inventor: BURKE JAMES O
IPC: F02N19/00
Filed: 1998-02-11
Abstract: A solenoid valve (10) for a starting fluid injection system includes a passageway (32) that interconnects the canister valve (20) of the canister (18) with a outlet (52) that transmits starting fluid to the engine. A first valve seat (36) is near the exit port (52) of the passageway (32) and is closed by an armature (40) when the solenoid coil (34) is not energized. A second valve seat (38) is an annular O-ring (39) gland that seals against the exterior of the canister (18) around the threaded neck (22). When the coil is energized, the armature (40) is moved to the open position, in which both the first valve seat (36) and the canister valve (20) are opened. A filter (54) and an orifice (60) are mounted in the valve body.
Patent CA-2252358-A1 (CA)
Title: Polycarbonate compositions having good mold-release properties
Inventor: PISIPATI RAMESH M
IPC: C08K5/103
Filed: 1998-11-04
Abstract: A thermoplastic molding composition having improved release properties is disclosed. The composition contains a polycarbonate resin and a mold release agent which is a hydroxy ester conforming structurally to (see formula I) where R is a member selected from the group consisting of glycerol, trimethylol propyl and pentaerythritol radicals, R' denotes a C6-20 hydrocarbon radical having at least one pendant hydroxyl group, and x is 2 to 4.
Patent CA-2255788-A1 (CA)
Title: Automobile manufacturing line
Inventor: UENOHARA YUZO
IPC: B62D65/00
Filed: 1998-12-14
Abstract: An automobile manufacturing line is provided which comprises a first assembly line, a second assembly line positioned parallel to the first assembly line on one side thereof, and a third assembly line positioned parallel to the first assembly line on the other side thereof. A first conveyor is located between the first and second assembly lines for carrying workpieces from the end of the first assembly line to the beginning of the second assembly line, and a second conveyor is located between the second assembly line and the third assembly line for carrying workpieces from the end of the second assembly line to the beginning of the third assembly line. The first assembly line, the first conveyor, the second assembly line, the second conveyor, and the third assembly line are arranged in a substantially spiral configuration. The first and second conveyors are overhead conveyors such that parts and workpieces can be transported to the assembly lines by passing underneath the conveyors.
Patent CA-2257316-A1 (CA)
Inventor: TANAKA TOSHIYUKI
IPC: G11B27/034
Filed: 1998-04-13
Abstract: An editing apparatus is disclosed, that comprises an editing processing unit for processing a video signal and an audio signal supplied as source materials, and a computer for controlling the editing processing unit, wherein the computer comprises a controlling means for displaying a viewer window, a log window, and a program window on a display of the computer, the viewer window allowing the editing operator to decide an edit point while viewing a video image of a source material so as to produce an event, the log window displaying a clip image corresponding to an event that is set on the viewer window, the program window allowing the editing operator to arrange a plurality of events on a time line in a desired order so as to produce a program list, and wherein the controlling means displays an icon that represents by what source device each event arranged on the time line is produced.
Patent CA-2258428-A1 (CA)
Title: Prandtl layer turbine
Inventor: PETERSEN DAVE
IPC: B01D47/16
Filed: 1999-01-08
Abstract: An apparatus comprising a longitudinally extending housing having a fluid inlet port and a fluid outlet port; a plurality of spaced apart members rotatably mounted in the housing to transmit motive force between fluid introduced through the fluid inlet port and the spaced apart members, the spaced apart members having an upstream end and a downstream end; and, at least one fan member positioned in series with the spaced apart members.
Patent CA-2259953-A1 (CA)
Title: System and method for fastening insulating layer to sheet material
Inventor: ELLIS WILLIAM J
IPC: B32B7/08
Filed: 1997-07-25
Abstract: A dash mat assembly (10) for installation in a vehicle includes an acoustic barrier layer (12) attached to an absorber layer (14). The acoustic barrier layer (12) is formed of relatively stiff material while the absorber layer (14) is formed of relatively flexible material. The inner surface of the acoustic barrier layer (12) is in direct contact with the outer surface of the absorber layer. Fasteners (16) are provided for attaching the layers together.      Each fastener has an elongate pin (22) with opposite ends and a flexible holding flange (24, 26) integrally molded at each end of the pin (22). The flanges (24, 26) normally extend generally transverse to a central axis of the pin and the length of each flange is greater than a cross-sectional dimension of the pin. The fasteners (16) extend completely through the acoustic barrier layer (12) and can extend either partially or completely through the absorber layer (14). The length of the pin (22) is shorter than the combined thickness of the layers such that the layers are held together under compression. A method of attaching the layers together is also disclosed.
Patent CA-2260023-A1 (CA)
Inventor: BOGDANOVIC BORISLAV
IPC: C07F3/02
Filed: 1997-07-03
Abstract: L'invention concerne des composés organomagnésiens obtenus à partir de composés chlorés aromatiques et de métal magnésium en présence d'un complexe chlorure de magnésium-métal de transition comme catalyseur.
Patent CA-2262875-A1 (CA)
Title: Method and apparatus for enhancing seam uniformity in spirally wound tubes
Inventor: HOWARD DAVID
IPC: B29C53/60
Filed: 1997-07-17
Abstract: The invention provides a method and apparatus for spirally winding a tube of enhanced spiral seam uniformity that is simple and reliable. The spirally wound tube (10) is formed using a spiral pitch control surface that engages with an exterior or interior cylindrical surface of a spirally wound tube and constrains movement of the tube to a predetermined spiral rotation as it is formed on a cylindrical stationary mandrel (12). Preferably, the pitch control surface comprises a tube engaging surface (14) positioned along at least one spirally aligned portion of the exterior portion of the tube forming mandrel.
Patent CA-2263100-A1 (CA)
Inventor: DURANT GRAHAM J
IPC: A61P25/16
Filed: 1997-08-08
Abstract: The present invention relates to certain imine-substituted heterocyclic compounds, and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are particularly useful for the treatment or prophylaxis of neurological injury and neurodegenerative disorders.
Patent CA-2263665-A1 (CA)
Inventor: NEWBY RICHARD ALLEN
IPC: F02C6/18
Filed: 1997-07-29
Abstract: L'invention concerne une centrale électrique dans laquelle l'hydrogène et l'oxygène sont brûlés de façon à produire un flux de vapeur à haute pression et à haute température. La vapeur est détendue dans une turbine haute pression utilisant un refroidissement par vapeur en circuit fermé pour les ailettes fixes et les pales rotatives. Un générateur de courant à récupération de chaleur produit la vapeur de refroidissement en transférant la chaleur de la vapeur détendue provenant de la turbine haute pression à l'eau d'alimentation. La vapeur de refroidissement est dirigée à travers des passages de refroidissement formés dans les ailettes et les pales de la turbine puis, une fois chauffé, elle est recueillie et renvoyée dans le cycle en étant dirigée dans les chambres de combustion, où elle est soumise à des températures modérées. La vapeur utilisée pour refroidir les ailettes et les pales à basse pression et à pression intermédiaire de la turbine haute pression est dirigée dans une turbine à pression intermédiaire pour être refroidie et détendue. Une chambre de combustion à pression intermédiaire chauffe à nouveau la vapeur de refroidissement avant qu'elle ne soit détendue dans la turbine à pression intermédiaire.
Patent CA-2263792-A1 (CA)
Title: Phytase from bacillus subtilis, gene encoding said phytase, method for its production and use
Inventor: APAJALAHTI JUHA
IPC: A23K1/165
Filed: 1997-08-12
Abstract: The present invention relates to phytase or a functional derivative thereof having a specific activity of at least 20 U/mg protein. The invention also relates to nucleic acids encoding said phytase as well as methods for the production of phytase and its use in agriculture as well as in the processing of food and animal feed.
Patent CA-2264252-A1 (CA)
Title: System and method for subscriber activity supervision
Inventor: ASTROEM BO ARNE VALDEMAR
IPC: H04Q7/22
Filed: 1997-08-20
Abstract: A system and method for monitoring the activity of a mobile subscriber in a GSM-based PLMN system (1150) from an Intelligent Network (IN) telecommunications system comprising several Intelligent Peripherals (IPs) (1111-1114) connected to a Service Control Point (SCP) (1101) over a network. The detailed technique is automatically initiated when the Service Control Point (SCP) (1101) of an IN system attempts to reach a mobile subscriber and fails. In the first phase, the SCP (1101) arms an SMS-IP (1114) using a dummy SMS message (1181). Upon the detection of renewed subscriber activity of a mobile subscriber (1165) who was previously inactive or unreachable, a PLMN triggering notification is generated. In this second phase, the PLMN (1150) transmits an alert (1183) to the SMS-IP (1114) which in turn notifies the SCP (1101).
Patent CA-2264253-A1 (CA)
Inventor: GUERET JEAN-LOUIS
IPC: A61L15/64
Filed: 1999-03-23
Abstract: L'invention est relative à un patch comprenant une matrice (3) réalisée dans un matériau ayant des propriétés auto-adhésives avant l'application sur la peau. Ce patch comporte une structure perméable (4) noyée entièrement dans ladite matrice (3) à proximité de sa surface de manière à modifier son pouvoir adhésif global.
Patent CA-2265168-A1 (CA)
Title: Reduced sheeting in single-site and single-site like polymerizations by employing a chromium containing compound
Inventor: LEE KIU HEE
IPC: C08F4/69
Filed: 1999-03-09
Abstract: A process for reducing sheeting during polymerization utilizing a single-site and single-site-like catalysts, by using a chromium containing compound to coat the reactor.
Patent CA-2267389-A1 (CA)
Inventor: KENNEY MALCOLM E
IPC: C07D487/22
Filed: 1997-09-30
Abstract: The present invention provides improved methods for synthesizing phthalocyanines, particularly HOSiPcOSi(CH3)2(CH2)3N(CH3)2, which do not involve photolysis, and which produces purity of at least about 95 %, and in the preferred embodiment of the first method of synthesis provide a yield of greater than about 70 % and typically greater than 80 %. The first method involves a method for synthesizing a phthalocyanine compound comprising the following steps: providing a phthalocyanine precursor having a central silicon; adding a first aminosiloxy ligand to the central silicon of the phthalocyanine precursor adding a second aminosiloxy ligand to the central silicon of the phthalocyanine precursor; displacing the second aminosiloxy ligand by an organic acid ligand, preferably C13CCOO ligand; then displacing the C13CCOO ligand with an HO ligand. The second method for making Pc4 is a method for synthesizing a phthalocyanine compound comprising the following steps: providing a phthalocyanine precursor having a central silicon; providing a siloxy ligand with an iodo group; adding a first and second siloxyiodo ligand to the central silicon of the phthalocyanine precursor; displacing the second siloxyiodo ligand by an organic acid, preferably a C13CCOO ligand; then displacing the C13CCOO ligand with an HO ligand; and then displacing the iodo group with a dimethylamino group. The invention also relates to methods for making two novel phthalocyanine compounds HOSiPcOSi(CH3)2(CH2)3I and SiPc¢OSi(CH3)2(CH2)3I!2, and to the compounds themselves which are useful as dyes and in photodynamic therapy.
Patent CA-2267785-A1 (CA)
Title: Precooling system for joule-thomson probe
Inventor: DOBAK JOHN D III
IPC: F25B9/00
Filed: 1997-10-07
Abstract: A miniature mixed gas refrigeration system and method is disclosed. A selected gas mixture is compressed to less than 420 psia for safety reasons. The compressed gas mixture is passed through a primary heat exchanger (140) and a primary/secondary heat exchanger (240) to precool the gas mixture. The secondary side of the primary/secondary heat exchanger is cooled by a secondary Joule-Thomson refrigeration system (200). Flow restrictions in the primary side of the primary/secondary heat exchanger (240) can solidify and trap liquid contaminants. The gas mixture exiting the primary outlet of the primary/secondary heat exchanger (240) passes to a primary expansion element (150) to expand isenthalpically to a to 183K or below to cool a heat transfer element. Return gas through the primary heat exchanger (140) precools the incoming high pressure gas mixture. A distal primary heat exchanger (160) can be added between the primary/secondary heat exchanger (240) and the primary expansion element (150).
Patent CA-2269132-A1 (CA)
Title: Compositions de regulation des taux d'oxydoreduction (eh) microbienne de la cavite buccale
Inventor: CODIPILLY MILROY
IPC: A23L29/00
Filed: 1997-10-23
Abstract: La présente invention se rapporte à une composition orale incorporant, dans un excipient oral, un composé de zinc contenant des ions zinc libres et au moins un composé stabilisé ou stable, élévateur du potentiel d'oxydoréduction (Eh). La présente invention se rapporte en outre à un procédé visant à inhiber la formation d'anions contenant du soufre et à prévenir une réduction du potentiel d'oxydoréduction de la cavité buccale. L'invention se rapporte enfin à un procédé visant à réduire les mauvaises odeurs de la cavité buccale, la gingivite et la parodontite.
Patent CA-2270743-A1 (CA)
Title: Dog bone
Inventor: CHERNOFF LORRY
IPC: A23K50/40
Filed: 1999-04-29
Abstract: A dog bone includes a rigid dog bone simulating vessel having in at least one end of the vessel a cavity for receiving therein flavoured compressible dog food.  The cavity extends a first distance into the vessel, so as to extend between an opening aperture at the end of the vessel and a vertex of the cavity spaced the first distance into the vessel. The cavity, when viewed in cross-section, diverges in its lateral dimension between the vertex and the opening aperture so that, at the vertex, the cavity is narrowest and opens radially outwardly relative to a longitudinal axis of the vessel. The flavoured compressible dog food is inserted or insertable into the cavity so as to be compressed against the vertex of the cavity and thereby retained therein. The compressible dog food, which may in one embodiment be in pellet form, is formed of ingredients at least one of which has an attractive taste for a dog and another of which absorb moisture so as to expand when moistened. Such expansion increases the frictional engagement of the dog food compressed into the cavity against the vertex.
Patent CA-2271727-A1 (CA)
Title: Essential oil solid compositions
Inventor: CRAWFORD IAN
IPC: A23L27/00
Filed: 1997-10-24
Abstract: The present invention relates to a solid composition including a gum material and an essential oil wherein the solid composition releases vapour containing the essential oil when exposed to an effective flow of gas. The present invention also relates to a method of diffusing an essential oil into the atmosphere and to a method of disinfecting air conditioning systems.