baber/WOPTO huggingface dataset:
Patent CA-2103867-C (CA)
Inventor: BLATCHFORD JO ANN
IPC: H04M3/00
Filed: 1993-08-11
Granted: 1997-12-09
Abstract: Network elements in a telecommunications network, such as toll switches, databases and the like, are provided with redundant SS7 signaling interfaces based on different software designs. At least one of the interfaces, referred to as a network endpoint signaling transfer point, or NESTP, is looselycoupled to its host and has signaling transfer point (STP) capabilities. In a routing table within the NESTP, a plurality of prioritized route lists are provided for at least some destinations, the list that is used to route a particular message to such a destination being a function of the route by which that message arrived at the NESTP.
Patent CA-2112266-C (CA)
Inventor: LUND ARNE
IPC: C08L9/00
Filed: 1992-06-25
Granted: 2000-04-18
Abstract: The invention rotates to a material wherein the main constituent is PVC for manufacturing pipes to be used for relining underground pipelines by the pipe in a folded condition being drawn into the pipeline and being engaged with the inside surface of the pipeline by temperature increase. By the addition of polymer thermoplastic elastomers which can be mixed with PVC the material has a glass transition temperature ranging from 45 to 75 °C and a ratio (Emod, T=20 °C)/(Emod, T=75 °C) > 20. The invention also relates to a method for restoring underground pipes by relining such pipes with a pipe which has been folded after the extrusion.
Patent CA-2118818-C (CA)
Title: Battery pack including static memory and a timer for charge management
Inventor: LIN DAVID S
IPC: G01R31/36
Filed: 1994-03-11
Granted: 1997-02-18
Abstract: A battery pack for a computer system including static memory to maintain battery operating parameters and charge information, a real time clock (RTC) for measuring periods of non-use of the battery and a communication means to exchange the battery information with a microcontroller located in the computer system. The static memory, RTC and communication means is preferably in the form of a single RAM/RTC chip.  The battery pack also includes circuitry to maintain power to the RAM/RTC from the battery if AC power is not available.  The microcontroller detects the presence of the battery and retrieves the present time from the RTC, a timestamp indicating time or removal of the battery and other operating parameters and charge information from the battery pack, and controls the charging functions of the battery accordingly.  The microcontroller also updates the charge information of the battery pack while performing other housekeeping functions of a DC-DC converter.  The microcontroller further controls a switch located in the charge path of the battery to control fast charging.  Trickle charge is simulated by pulsing the switch at a predetermined duty cycle and period.  The microcontroller may be placed in standby to conserve energy, while also monitoring the standby switch to pull the computer system out of standby mode if the standby switch is pressed.  This allows the keyboard controller 21 to be shut off during standby mode to conserve energy.
Patent CA-2122346-C (CA)
Title: Bistriazenes as chemotherapeutic agents
Inventor: MICHEJDA CHRISTOPHER J
IPC: A61K31/655
Filed: 1992-10-30
Granted: 2005-09-27
Abstract: The present invention is directed to bistriazene compounds, pharmaceutical compositions containing effective anti-cancer amounts of these compounds, a method for treating cancer comprising administering to affected subjects an anti-cancer effective amount of a bistriazene compound, and the use of bistriazene compounds as cross-linking reagents applicable to the synthesis and manipulation of polymeric macromolecules.
Patent CA-2122810-C (CA)
Inventor: WINTER DAVID CARL
IPC: A01B63/22
Filed: 1994-05-03
Granted: 1996-06-04
Abstract: A one-way pressure bleed off path is provided between the series cylinder depth control circuit and an additional hydraulic circuit for an agricultural implement to prevent pressure build-up and hose expansion that otherwise would cause uneven series cylinder extension and uneven implement depth.  A line including an orifice and a one-way check valve is added between the depth control circuit and the second circuit, such as the wing fold circuit for the implement, to bleed off any series cylinder pressure build-up through the otherwise unused second circuit.  The  orifice limits the amount of oil that is returned to reservoir during operation of the series circuit to lower the implement.  The check valve isolates the depth control circuit and the second circuit to prevent unwanted cylinder operation while the wings are being folded.
Patent CA-2124525-C (CA)
Title: Hydroformylation process using novel phosphine-rhodium catalyst system
Inventor: DEVON THOMAS JAMES
IPC: B01J31/24
Filed: 1994-05-27
Granted: 1997-12-23
Abstract: Disclosed are bis-phosphine compounds having the general formula (see fig. I) wherein:     each of A1, A2, A3 and A4 is an arylene radical wherein (i) each phosphorus atom P is bonded to a ring carbon atom of A1 and A2 and to a ring carbon atom of A3 and A4, (ii) A1 and A2, and A3 and A4 are bonded to each other by ring carbon atoms and (iii) each of the residues (see fig. II)     and         (see fig. III) constitutes a 5-membered ring;     each of A5 and A6 is an arylene radical wherein A5 and A6 are bonded to each other and to residues R1-C-R2 and R3-C-R4 by ring carbon atoms and R1-C-R2 and R3-C-R4 are connected to each other through a chain of 4 carbon atoms; and R1, R2, R3 and R4 each represents hydrogen or a hydrocarbyl radical containing up to about 8 carbon atoms.  Also disclosed are catalyst systems comprising one or more of the above phosphine compounds and rhodium, catalyst solutions comprising one or more the above phosphine compounds, rhodium and a hydroformylation solvent, and hydroformylation processes wherein olefins are contacted with carbon monoxide, hydrogen and the catalyst solution to produce aldehydes.
Patent CA-2126833-C (CA)
Title: Coating process using radiation curable compositions
Inventor: CORNFORTH DAVID A
IPC: B05D7/24
Filed: 1994-06-27
Granted: 1999-11-30
Abstract: A process is provided whereby radiation curable compositions comprising N-vinylformamide and an oligomer selected from the group consisting of epoxy-acrylate resins, polyester acrylate resins, polyurethane acrylate resins, acrylic acrylate resins, silicone acrylate resins, unsaturated polyester resins, maleate ester resins, vinyl ether resins and mixtures thereof are applied to the surface of a substrate and subsequently exposed to a radiation source until an adherent dry polymerized film is formed on t he substrate. These compositions are useful for a wide range of applications including pigmented and unpigmented coatings, printing inks, adhesives and the like.
Patent CA-2129040-C (CA)
Title: Styryl derivatives and processes for their preparation
Inventor: WARRELLOW GRAHAM JOHN
IPC: A61K31/10
Filed: 1993-12-22
Granted: 2004-11-02
Abstract: Compounds of general formula (1) are described, wherein Y is a halogen atom or a group -OR1, wherein R1 is an optionally substituted alkyl group;    X is -O-, -S- or -N(R6)-, where R6 is a hydrogen atom or an alkyl group; R2 is an optionally substituted alkyl, alkenyl, cycloalkyl or cycloalkenyl group;    R3 and R4, which may be the same or different, is each a group -(CH2)n Ar, where Ar is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms and n is zero or an integer 1, 2 or 3; R5 is a hydrogen atom or an optionally substituted alkyl group; and the salts, solvates, hydrates and N-oxides thereof. Compounds according to the invention are pout, selective and orally active PDE IV inhibitors and are useful in the prophylaxis and treatment of asthma and other diseases.
Patent CA-2130376-C (CA)
Inventor: KEUSCHNIGG JOSEF
IPC: B07B7/086
Filed: 1994-08-18
Granted: 2003-04-01
Abstract: Pneumatic sifter having a device (50) for supplying sift material, where appropriate in common with sifting air, to a rotationally symmetrical sifting chamber (100) enclosing a centrally disposed air-outflow chamber, and having a coarse-grain drain (60). In order, inter alia, to keep the flow resistances low as the air enters into the air-outflow chamber (200), it is envisaged that in the air-outflow chamber (40), along its radial, outer limit, there are disposed at uniform reciprocal angular intervals guide vanes reaching into the air-outflow chamber (40), these guide vanes (30) reaching roughly over the axial extent of the sifting chamber (100).
Patent CA-2135950-C (CA)
Title: Method of multiple access
Inventor: SESHADRI NAMBIRAJAN
IPC: H04B7/24
Filed: 1994-11-16
Granted: 2000-10-24
Abstract: A low delay multiple access scheme called Shared Time-Division Duplexing (STDD), allows both uplink and downlink voice traffic to share a common channel. The scheme contains separate uplink and downlink control channels and a common voice information channel. The control channels comprise means for signalling voice requirements and acknowledgements of the time slot allocation. Using speech activity detection only, talk spurt speech packets are generated for transmission. STDD dynamically allocates time slots in the common information channel taking advantage of co-ordinated two-way conversations to achieve high statistical multiplexing gain and more efficient realization of the common information channel.
Patent CA-2145555-C (CA)
Title: Differential coating for micro extruded tubes used in parallel flow heat exchangers
Inventor: PAULMAN ROGER
IPC: B23K1/00
Filed: 1995-03-27
Granted: 2004-03-23
Abstract: Microextruded tubes each having two side surfaces, front and trailing edge surfaces and two ends are provided for insertion into aligned slots in headers to complete a heat exchanger assembly. The tubes each include a first coating composition containing an adhesive binder vehicle, flux material and brazing alloy deposited on the side surfaces adjacent the ends of the tube. The first coating composition is structurally arranged and applied to engage the aligned slots in the headers upon the insertion of the ends of the tubes into the header. The side surfaces of the microextruded tube include a second surface coating containing an adhesive binder vehicle, flux material, zinc and silicon extending the length of side tube between the deposited first coatings. The front and trailing edge surfaces of the tube include a third surface coating composition containing adhesive binder vehicle, flux material and zinc. A method of manufacturing parallel flow-type heat exchangers is disclosed.
Patent CA-2147626-C (CA)
Inventor: MISH STANLEY L
IPC: C12P21/04
Filed: 1994-06-24
Granted: 1998-04-21
Abstract: This invention provides cell encapsulating devices capable of maintaining large numbers of viable cells. The devices are comprised of an inert,substantially cell-free core, a permeable membrane and a zone for maintaining cells. The permeable surrounds the core such that the zone of cells is bounded by the core and the permeable membrane. The devices of the invention are suitable for implantation into an individual in need of treatment and are capable of supplying therapeutic substances to such individuals.
Patent CA-2148393-C (CA)
Inventor: BILANGE THIERRY
IPC: B64C39/12
Filed: 1995-05-02
Granted: 2005-07-05
Abstract: Airplane including a main wing, deep aerodynamic surfaces and an orientation-controllable front stabilizer.  According to the invention, this airplane includes: A) a calculation device receiving continuous measurements: 1) of the speed of the place in relation to the air; 2) of the plane's center of gravity; 3) of the flight altitude; and 4) of the mass of the said airplane; and calculating the angular setting to be given to the said planes of the stabilizer, during stabilised flight phases without atmospheric disturbances, so that the bearing of the said front stabilizer corresponds for each instant, to the smallest possible value of drag for the airplane; and B) a device conferring an essentially constant bearing to the said front stabilizer while the airplane in flight is not in a stabilised flight phase without atmospheric disturbances.
Patent CA-2151630-C (CA)
Inventor: HEITHOFF ROBERT B
IPC: C03C17/32
Filed: 1995-06-13
Granted: 1999-10-19
Abstract: The present invention provides a glass composite transparency having a desired color, intensity and a high performance ratio. In particular, the transparency includes at least one rigid transparent ply, e.g. a colored glass or plastic substrate, and a member secured to a major surface of the substrate, e.g. a flexible plastic layer or a coating. The member has a color that generally complements the color of the glass substrate to reduce the overall intensity of the composite transparency. In one embodiment of the invention, the transparency is gray in color and has a performance ratio of at least 1.4, preferably at LTA  70%.
Patent CA-2153070-C (CA)
Inventor: GRUND HARTMUT
IPC: A22C13/00
Filed: 1994-11-09
Granted: 2001-04-24
Abstract: The invention concerns five-layer tubular polyamide film for wrapping and covering paste-form foodstuffs, in particular for use as sausage skins, the film being characterized in that it is made up of an inner and an outer laye r made of the same polyamide material consisting of at least one aliphatic polyamide and/or at least one aliphatic copolyamide and/or at least one part ly aromatic polyamide and/or at least one partly aromatic copolyamide, a middle  polyolefin layer and two bonding-agent layers each made of the same material . The proportion of partly aromatic polyamide and/or copolyamide is 5 to 60 %,  in particular 10 to 50 %, relative to the total weight of the polymer mixtur e of partly aromatic and aliphatic polyamides and copolyamides.
Patent CA-2155035-C (CA)
Inventor: NENNIGER JOHN
IPC: E21B43/25
Filed: 1991-09-25
Granted: 1996-12-10
Abstract: This invention describes a method of stimulating production from an oil well by removing solid wax deposits from a production zone. An electrical resistance heater comprised of a packed bed of spherical heating elements is lowered through the tubing on a wireline and placed adjacent to the perforations. Solvent is pumped through the heater to raise its temperature by 200°C and then into the formation to contact wax deposits. The solid wax deposits are liquified and together with the oil and the solvent form a single liquid phase. The wax is then removed from the formation by placing the well back on production. Because the invention completely avoids the use of either water or gas, the saturation of the water and gas phases in the formation is minimized, thereby maximizing the mobility of the liquid phase containing the wax and facilitating the removal of the liquified wax from the treatment area before it reprecipitates.  The packed bed heater has a large surface area and a large heat transfer coefficient, so high power rates (150 kW) can be achieved within a compact volume (6m long x 5cm id) without solvent degradation.By heating the solvent to a high temperature, a minimum volume of solvent is required, thereby minimizing production downtime and solvent costs. The burnout and catastrophic failure problem usually associated with resistive heaters is avoided due to the multiplicity of current paths through the packed bed.
Patent CA-2155900-C (CA)
Inventor: VAUGHAN DON
IPC: C02F1/42
Filed: 1995-08-11
Granted: 1999-01-26
Abstract: A control mechanism for a liquid treatment system including a first tank having an inlet and an outlet and a second tank having an inlet and an outlet. The control mechanism includes an inlet passage for receiving liquid to be treated and an outlet passage for dispensing treated liquid. A first valve is provided having a first chamber in fluid communication with the inlet passage and a second chamber in fluid communication with the outlet passage. The first valve is rotatable between a first position and a second position. A second valve is provided in fluid communication with the second chamber of the first valve. The second valve is adapted to selectively open and close a fluid path between the second chamber of the first valve and the first tank and to selectively open and close a fluid path between the second chamber of the first valve and the second tank. When the first valve is located in the first position, the first chamber is in fluid communication with the inlet of the first tank and is sealed from the second tank and the second chamber of the first valve is in fluid communication with the outlet of the first tank. When the first valve is located in the second position, the first chamber is in fluid communication with the inlet of the second tank and the inlet of the second tank and is sealed from the first tank and the second chamber is in fluid communication with the outlet of the second tank.
Patent CA-2156537-C (CA)
Title: Low power ring detect for computer system wakeup
Inventor: CRUMP DWAYNE THOMAS
IPC: G06F1/32
Filed: 1995-08-18
Granted: 2000-08-01
Abstract: A computer system having a CPU, a power management processor, a modem,  and a power supply in circuit communication.   The power management processor controls the regulation of power to the CPU by the power supply.  Responsive to a ring signal having a frequency in a  predetermined  range  being  detected  by  the  power  management processor, the power management processor causes the power supply to provide regulated power to the computer system.  Thereafter, the CPU confirms that a ring signal was present by querying the modem whether the modem also detected a ring.  If so, the system remains powered. If not, the CPU causes the power management controller to cause the power supply to cease providing regulated power.
Patent CA-2160718-C (CA)
Title: Electrocatalyst material comprising a platinum alloy on a conductive support
Inventor: POTTER ROBERT JOHN
IPC: H01M8/02
Filed: 1994-04-20
Granted: 2005-03-22
Abstract: An electrocatalyst material for use in an acid electrolyte environment, comprising platinum or a platinum alloy supported on a conductive support, and gold, gives unexpectedly improved performance over similar electrocatalysts without gold.
Patent CA-2161581-C (CA)
Inventor: KARNER GERHARD
IPC: E05F15/14
Filed: 1995-10-27
Granted: 2003-04-15
Abstract: In the overhead supporting beam of an elevator door, the roller races (4,5) for the rollers of the door panels are formed from one piece with the overhead supporting beam (1). The door operating mechanism (11) with the door operating motor (15) is fitted to form a single unit with the overhead supporting beam (1) of the door.
Patent CA-2165383-C (CA)
Inventor: OJANEN LASSI MAUNO
IPC: B60J1/16
Filed: 1995-12-15
Granted: 1998-06-23
Abstract: A rigid sliding window is provided for the soft tops of soft topped vehicles such as soft topped cars and boats or even tent trailers.  It may be attached directly into the soft top side curtain or into a rigid side frame or inner structural frame.  The window module comprises a fixed window panel, a sliding window panel and a slim line frame for the panels.  The fixed window panel and an outer flange of the frame are fixed directly to the soft fabric of the soft top, the outer flange of the frame being sandwiched between an outer margin of the fixed panel and the fabric of the soft top.  The frame also provides a channel in which the sliding panel runs.  In the region of the sliding panel in its closed position the outer flange of the frame is fastened directly to the fabric of the soft top.
Patent CA-2169928-C (CA)
Inventor: NORELL JOYCE L
IPC: G01N33/543
Filed: 1994-08-30
Granted: 2007-04-10
Abstract: L'invention concerne un moyen de fermeture (40) et un dispositif (20) à utiliser avec le moyen de fermeture (40), le moyen de fermeture (40) comportant un premier élément (22) ayant un bord en biseau (42), un second élément (24) ayant un bord oblique correspondant (44) et éventuellement un élément de base auquel le second élément est fixé. Le premier élément (22) est agencé pour que son bord en biseau (42) soit retenu par le bord oblique (44). Un dispositif pour effectuer un test (20) peut comporter un tel moyen de fermeture (40) et il peut également comporter une charnière (26) entre le premier et le second éléments. On peut placer des éléments pour réaliser des tests tels qu'un milieu chromatographique et des tampons absorbants sur le premier élément et/ou sur l'élément de base et on peut les amener l'un contre l'autre en fermant le premier élément avec le moyen de fermeture.
Patent CA-2170590-C (CA)
Inventor: KINNE DANIEL JAMES
IPC: B65D43/06
Filed: 1994-08-24
Granted: 1999-03-16
Abstract: The present invention pertains to improved closure arrangements which are durable in con-struction, yet easy to open and reclose, and which provide an initial hermetic seal with tamper ev-idency, all utilizing a one-piece lid design. In two embodiments according to the present inven-tion, unique combinations of a mechanical inter-locking closure system (17, 26), heat-sealing or bonding (25), and a weakened failure zone (24) are employed in the vicinity of the lid/container juncture to achieve these desirable characteristics. In a third embodiment of the present invention, a mechanical interlocking and sealing arrangement is utilized to achieve hermetic sealing of the con-tainer without the need for a heat seal or bonded region, and a weakened failure zone is located just inward of the mechanical interlocking con-nection. With all embodiments according to the present invention, upon tearing the lid open the lid forms a recloseable plug-fit closure to reclose the container, while the rim of the lid once re-mains attached to the container in its initial po-sition. The resulting container is extraordinarily simple in construction, rendering it easy and cost effective to produce, yet providing superior per-formance both in maintaining the initial freshness of the product and in providing ease of consumer operation.
Patent CA-2172538-C (CA)
Title: Ciments de phosphate de calcium autodurcissants et methodes de melange et de mise en oeuvre correspondantes
Inventor: CHOW LAURENCE C
IPC: A61K6/838
Filed: 1994-09-23
Granted: 1999-11-16
Abstract: L'invention concerne des procédés et des compositions relatifs à des ciments au phosphate de calcium, lesquels forment en durcissant une hydroxyapatite à température ambiante lorsqu'ils sont en contact avec un milieu aqueux. Plus spécifiquement, les ciments comprennent une combinaison d'un ou de plusieurs phosphates de calcium modérément solubles autre que le phosphate de tétracalcium, avec une solution aqueuse ajustée à l'aide d'une base pour maintenir un pH d'environ 12,5 ou plus, et présentant suffisamment de sel de phosphate dissous pour produire un mélange en solution dont la concentration de phosphate est égale ou supérieure à environ 0,2 mol/L.
Patent CA-2174179-C (CA)
Title: Liquid ejecting head, liquid ejecting device and liquid ejecting method
Inventor: NAKATA YOSHIE
IPC: B41J2/14
Filed: 1996-04-15
Granted: 2000-10-17
Abstract: A liquid ejecting head for ejecting a liquid by generation of a bubble, comprises a first liquid flow path in fluid communication with an ejection outlet, a second liquid flow path having a heat generating element for applying heat to the liquid to generate a bubble in said liquid, and a supply path for supplying the liquid to above said heat generating element from an upstream side of said heat generating element in a direction along said heat generating element, a movable member disposed as facing the heat generating element, displaced to a side of said first liquid flow path, based on a pressure generated when said heat generating element is driven, and having a free end, and a guide path for flowing the liquid above said heat generating element in said second liquid flow path.