baber/WOPTO huggingface dataset:
Patent CA-2246069-A1 (CA)
Title: Closed-loop ultrasonic welding method and apparatus
Inventor: HALBERT ROBERT C
IPC: B06B1/02
Filed: 1998-10-02
Abstract: A closed-loop ultrasonic welding apparatus for sealing or welding thermoplastic material on a continuous basis wherein the material to be welded is fed through a weld station comprising a horn and anvil. The apparatus includes means for providing a first signal commensurate with a desired ultrasonic energy density in the material when welded, a second signal responsive to the feed speed of the material through the weld station, and a third signal commensurate with the power coupled by a power supply via a transducer and the horn to the material at the weld station. Control means receive the first, second and third signals and produce an error signal, which is responsive to the difference between the desired energy density and the actual energy density coupled to the material. After being subjected to further processing the error signal is converted to a control signal for controlling the output from said power supply and/or controlling the engagement force between the horn and material. Hence, the welding apparatus causes a predetermined energy density in the welded material irrespective of disturbances or changes in feed speed, engagement force between the horn and material, or the material itself.
Patent CA-2250375-A1 (CA)
Inventor: MARCARIAN XAVIER
IPC: C08F2/00
Filed: 1998-10-27
Abstract: Le procédé pour préparer en continu des homopolymères ou des copolymères par micromélange par impact de jets libres de fluides formés (1) de monomère(s) et (2) d'un système d'amorçage consiste à micromélanger les fluides (1) et (2) et à récupérer le mélange de ces fluides sous forme d'un jet résultant Jr, issu du point d'impact (I). Le micromélange est obtenu: a) en formant au moins un groupe d'au moins deux jets Ja des fluides identiques ou différents, concourant au point d'impact (I), les jets Ja d'un même groupe étant tous de géométrie identique, leurs axes étant disposés de telle sorte que leurs projections sur un plan perpendiculaire à l'axe (A) du jet résultant Jr soient réparties angulairement de manière régulière et ces axes étant inclinés par rapport audit axe (A) d'un même angle .alpha. non nul d'au plus 90.degree.; b) en dirigeant, simultanément, sur le point d'impact (I) au moins un jet Jb d'un fluide différent d'au moins un des fluides desdits jets Ja pour former le jet résultant Jr, l'axe du ou des jets Jb étant inclinés par rapport à l'axe du jet résultant Jr d'un angle .beta. inférieur à l'angle .alpha.; et c) en récupérant le mélange des fluides des jets Ja et Jb sous forme du jet résultant Jr constitué par les homopolymères ou les copolymères. Ce procédé est particulièrement avantageux dans le cas de réactions très rapides.
Patent CA-2251473-A1 (CA)
Inventor: JOHANNSSON LARS-ERIK
IPC: B01D53/83
Filed: 1997-03-17
Abstract: In a vertical flue gas duct (10), in which flue gases containing gaseous pollutants are to be conducted upwards, a discharging and distributing device is arranged. The device is adapted to discharge and distribute a particulate absorbent material which is reactive with the gaseous pollutants in the flue gases and which, during cleaning of the flue gases, is to be introduced into these gases in moistened state in order to convert the gaseous pollutants to separable dust. The device comprises at least one distributing plate (35) which extends obliquely downwards in the flue gas duct (10) and which is adapted to receive on its upper side moistened absorbent material and which has two well-defined side edges converging obliquely downwards seen in the direction of inclination.
Patent CA-2256378-A1 (CA)
Title: Substrate with conductor formed of low-resistance aluminum alloy
Inventor: KAMIYA KENJI
IPC: G02F1/1343
Filed: 1998-03-26
Abstract: A wiring substrate is disclosed, which has optimal characteristics for, for example, an active matrix type liquid crystal display device with a thin film transistor. Wiring formed of an Al-Nd-Ti alloy thin film is formed on a glass substrate, and if necessary, a semiconductor element which is electrically connected to the wiring is formed. In this case, the specific resistance of the Al-Nd-Ti alloy thin film is about 8 .mu..OMEGA. cm if the Nd concentration is 0.75 at % and the Ti concentration is 0.5 at %. Further, even if the resultant substrate is heated at 240 - 270 ~C after the formation of the wiring, occurrence of a hillock and a pinhole is substantially completely suppressed.
Patent CA-2258227-A1 (CA)
Title: Method and device for filling an analysis card with a liquid medium
Inventor: COLIN BRUNO
IPC: G01N35/02
Filed: 1998-04-14
Abstract: The invention concerns a device for filling, with a liquid medium, (1) an analysis card (2) comprising a body (3) wherein is formed at least a reading cavity (3a) and an orifice (4) communicating with said cavity by at least an internal channel (7), with an external conduit (9) communicating with said orifice, said device comprising evacuating means (50). The invention is characterised in that it comprises: connecting means (11), including on one side a sealed and removable joining piece (12) to be coupled with the open external conduit free end (9a), and communicating directly on the other side with the evacuation means (50); means (34) for closing and re-opening the external conduit.
Patent CA-2258679-A1 (CA)
Inventor: SANGEKAR SURENDRA A
IPC: C07D405/14
Filed: 1997-06-25
Abstract: A pharmaceutical composition in the form of a substantially amorphous solid solution comprising an antifungal compound of formula (I), wherein X is F; and R1 is formula (1) or an ester or ether of said compound of formula (I); and a soluble or insoluble polymer such as:  povidone or crospovidone, wherein the ratio of said compound to said polymer is about 1:3 to about 1:6 is disclosed.
Patent CA-2259564-A1 (CA)
Inventor: LEVI SHEM-TOV
IPC: H01Q5/42
Filed: 1996-07-04
Abstract: A dual-frequency array antenna having an essentially planar structure with electronic beam steering capability in both a low and high frequency band independently of each other, constructed, in a layered formation, from a top planar array antenna unit operating in the low frequency band and a bottom planar array antenna unit operating in the high frequency band. The top planar array antenna is transparent to frequencies in the high frequency band.
Patent CA-2260919-A1 (CA)
Inventor: MCELROY LUCIAN G
IPC: B64F5/00
Filed: 1999-02-05
Abstract: The assembly includes a plurality of flexible and inflatable bags 43, 44, 45, 46, 47, 48, 56 and 58, each having a rectangular cross section with an open end for receiving air from various ducts 30, 32, 34, 36, 38, 40, 62 and 66, and extending vertically to a nozzle end 52. A plurality of first starboard bags 43 overlap a plurality of second starboard bags 44 in the horizontal direction and a plurality of first port bags 46 overlap a plurality of second port bags 47 in the horizontal direction. Also, the second starboard 44 and port 47 bags are spaced downstream from the first 43 starboard and port 46 bags. The nozzles 52 of the first starboard bags 43 are disposed in a first horizontal V a,-shape in relationship with the first port bags 46 to direct the emitting air in the emitting planes rearwardly and outwardly on each side of the aircraft 10 to move deicing material outwardly and rearwardly over the wings 12 and 14 and the nozzles 52 of the second starboard 44 and port 47 bags are disposed in a second horizontal V b -shape with each other to direct the emitting air in the emitting planes rearwardly and outwardly from the aircraft 10 to move deicing material outwardly and rearwardly over the wings from the first starboard 43 and port 46 bags. Three third starboard bags 45 are aligned horizontally with three third port bags 48 and downstream of the second starboard 44 and port 47 bags. A  plurality of starboard 56 and port 58 are disposed close together for removing deicing material from the horizontal stabilizer of the aircraft.
Patent CA-2261268-A1 (CA)
Inventor: MAHER JOHN MICHAEL
IPC: C07C45/33
Filed: 1997-03-27
Abstract: Procédés d'oxydation d'alcanes tels que, par exemple, du propane, afin de former des aldéhydes et des acides carboxyliques insaturés tels que, par example, l'acroléine et l'acide acrylique. Les procédés utilisent de l'oxygène et recyclent des alcanes, par exemple du propane, dans le réacteur d'aldéhyde. La présence de l'alcane dans la réaction alcène en aldéhyde peut améliorer l'efficacité des procédés.
Patent CA-2262766-A1 (CA)
Title: Pipe gripping system and method
Inventor: SONNIER ERROL A
IPC: E21B19/10
Filed: 1997-06-19
Abstract: A slip die with a substantially smooth pipe contact surface (26a) is employed in a conventional slip assembly as a primary mechanism (34) for gripping pipe (13). A second conventional slip assembly with conventional dies having penetrating die teeth (37) on their contact surfaces is employed as a secondary gripping mechanism to automatically grip the pipe in the event the primary mechanism loses its grip. The smooth slip elements (26a) are constructed of a malleable material which tends to conform to surface irregularities on the outer surface of the pipe to increase the gripping force on the pipe. In the method, the pipe is initially gripped by the primary slip mechanism (34) before the secondary mechanism is actuated to contact the pipe (13). The slips (36, 37) are set by downward pipe forces acting on the dies so that the die teeth of the secondary mechanism (37) do not grip the pipe unless the primary slip mechanism fails. The system and method permit the pipe to be gripped without producing damaging die teeth marks on the pipe during normal pipe handling operations while providing a secondary mechanism which will automatically grip the pipe if the primary gripping mechanism fails.
Patent CA-2269733-A1 (CA)
Inventor: KOLEV JAVOR PETROV
IPC: H04W8/06
Filed: 1997-10-28
Abstract: A system and method for maintaining the home and visiting location records of a subscriber in a single-, dual- or multi-mode telecommunications system. Upon leaving the home system. an associated record is made of the new location within the visiting system, and a timer initiated. Paging of the subscriber is routed according to the presence of the associated record and unexpired timer. indicating the visiting system, and expired timer, indicating return to the home system.
Patent CA-2273541-A1 (CA)
Title: A method of lumber preparation to improve drying and treatment and development of a new engineered wood composite
Inventor: CHOW SUEZONE
IPC: F26B5/04
Filed: 1999-06-03
Abstract: In one aspect, the invention may be adapted to provide a method of treating a piece of lumber including the steps of a) analyzing the lumber to detect a surface defect at a site on the lumber; b) removing at least a portion of the surface defect to form an opening in the lumber at the site of the defect; c) drying the lumber using a process wherein moisture is allowed to escape from the; lumber through the opening;  and, d) inserting a solid plug in the opening to refill the opening in the lumber.
Patent CA-2273603-A1 (CA)
Title: Method and apparatus for adaptive clocking for boundary scan testing and device programming
Inventor: TAHERI SAEED
IPC: G01R31/3193
Filed: 1999-06-04
Abstract: A boundary scan controller and method. The boundary scan controller generates an output clock for shifting output data to a target device as a serial stream. The boundary scan controller generates another clock for receiving a serial stream of input data from the target device. The input clock is generated after the output clock according to a predetermined delay. The predetermined delay provides a period of time for the target device to respond to the serial stream of output data. The boundary scan controller comprises a clock generator for generating a system clock, a transmit module having a transmit clock generator and an output data register, a receive module having a receive clock generator and an input data register, and a state machine controller. The receive module includes a delay counter for generating a delay between the transmit and receive data clocks.
Patent CA-2273776-A1 (CA)
Title: Hermetic compressor assembly having a suction chamber and twin axially disposed discharge chambers
Inventor: GANNAWAY EDWIN L
IPC: F04C23/00
Filed: 1999-06-07
Abstract: A hermetic compressor assembly having a housing and a pair of spaced apart main bearings, disposed within the housing, which subdivide the housing into first and second discharge chambers, and a suction chamber. The suction chamber is disposed between the pair of main bearings and first and second compressor mechanisms are disposed, respectively, in the discharge chambers. Each compressor mechanism has an outboard bearing, a cylinder block, which is disposed between the outboard and main bearings and defining a cylindrical cavity, a roller piston in the cylindrical cavity and a vane supported in the cylinder block and rotationally engaging the roller piston. At least one discharge opening is in fluid communication with the respective discharge chamber and a drive motor is disposed in the suction chamber. A drive shaft drivingly connects each roller piston to the motor. A suction port is disposed within at least one of the compressor mechanisms and extends through the respective main bearing. A pair of discharge conduits are connected, respectively, to the pair of discharge chambers to convey discharge gases therefrom.
Patent CA-2275640-A1 (CA)
Title: Method and apparatus for manufacturing a monocrystal
Inventor: NAKATA JOSUKE
IPC: C30B11/00
Filed: 1997-10-23
Abstract: The present invention relates to a manufacturing method for a monocrystal and to a monocrystal manufacturing device. The present invention relates to a technology for manufacturing a granular monocrystal, wherein: melt of melted raw material is made into a supercooled spherical melt; while the melt is levitated under microgravitational conditions, the free energy of a portion of the surface of the melt is reduced, and a monocrystal is grown. A monocrystal manufacturing device 31 comprises: a gold image furnace 35, a chamber 33, a raw material supply/retention mechanism 38; a drop tube 36 and a drop tube 37; a rotating plate 39; a recovery vat 40; and the like. Raw material 32a of semiconductor material is heated and melted and allowed to free fall in a vacuum inside drop tubes 36, 37. During the drop, rotating plate 39 comes into contact with a portion of the surface of supercooled spherical melt 32b, and a crystal nucleus is generated. From this crystal, a monocrystal is grown, and a spherical monocrystal 32c is formed, and this is recovered in recovery vat 40.
Patent CA-2279119-A1 (CA)
Title: Heuristic-based conditional data indexing
Inventor: FLASZA MIROSLAW A
IPC: G06F17/30
Filed: 1999-07-29
Abstract: A computer system for the indexing of data in which a heuristic determination function is applied to predict an efficient index updating approach. The system is able to update an index relating to a first data set by incrementally updating the index or by a rebuild of the index at the completion of the addition of a second set of data to the first set of data. The system applies a heuristic determination function to the characteristics of the first set of data, its index, and the second set of data, to predict whether an incremental update or a rebuild update of the index will result in a more efficient rebuild of the data. The system applies this approach to a restore and rollforward recovery or a data load operation to improve the efficiency of these operations.
Patent CA-2279572-A1 (CA)
Title: Method of operating a motor vehicle management computer system
Inventor: RHINEHART MATTHEW G
IPC: B60R16/03
Filed: 1999-08-03
Abstract: A driver information system for a motor vehicle includes a network which executes one of a number of application programs depending on which function of the system the driver has selected at any given point in time. In response to the driver's selection, the appropriate application program is retrieved from storage for execution. Information regarding the specific hardware interface software objects that are required during that execution are read from the retrieved application program and loaded for execution. Thus only the software that is necessary to implement the selected function is loaded for execution which reduces the complexity of the hardware of the driver information system. A method for verifying the compatibility of each software program and object also is described.
Patent CA-2280209-A1 (CA)
Inventor: RICHARD BRIGITTE M
IPC: A61P17/02
Filed: 1998-02-13
Abstract: L'invention concerne des variants du facteur de croissance des cellules endothéliales vasculaires qui présentent une modification du domaine fixant l'héparine en extrémité C. L'invention concerne en outre l'ensemble de la technologie de recombinaison associée, y compris l'ADN codant lesdits variants, et aussi des cellules hôtes transformées et des procédés relatifs à l'élaboration de ces variants. On a modifié les caractéristiques de liaison des variants en question dans le but de conférer aux variants un taux d'élimination réduit par rapport au matériau naturel.
Patent CA-2281608-A1 (CA)
Title: Bone substitute material with a surface coating of peptides having an rgd amino acid sequence
Inventor: NIES BERTHOLD
IPC: A61L27/56
Filed: 1998-02-11
Abstract: The invention relates to a bone substitute material based on a porous polymer material the surface of which is coated with peptides having an RGD amino acid sequence.
Patent CA-2282705-A1 (CA)
Inventor: SHUBER ANTHONY P
IPC: C12Q1/68
Filed: 1998-02-27
Abstract: La présente invention concerne des procédés de détection de la présence, dans un échantillon biologique, de séquences mutantes dans une sous-population de séquences géniques. Lesdits procédés sont utiles, en particulier, pour identifier des individus porteurs d'un indicateur de mutation génique du cancer colectoral primaire.
Patent CA-2282974-A1 (CA)
Inventor: CAMPBELL DOUGLAS C V
IPC: A61M5/50
Filed: 1999-09-22
Abstract: FIELD OF THE INVENTION The invention relates to disposable, auto-destruct syringes which are rendered non-reusable during or after a first use.     BACKGROUND OF THE INVENTION   A principal function of syringes is in conjunction with hypodermic needles for the treatment of disease by way of intravenous or intramuscular injection in humans or animals. When treating disease in this way, it is particularly important to prevent infection of the patient injected. Communicable diseases are transmitted and infection can be caused in different ways, such as, by contact with body fluids of an infected person. Infection or transmission of a communicable disease is undesirable and is especially unfortunate when due to inadvertence or ignorance, for example, the sharing or reuse of hypodermic syringes. The practise of sharing hypodermic syringes is especially prevalent among drug users. Similarly, the reuse of hypodermic syringes has become a major problem in third-world countries where syringes are used in vaccination campaigns. Often several children
Patent CA-2283011-A1 (CA)
Inventor: LOKKEN GARY
IPC: E04B2/02
Filed: 1999-09-22
Abstract: A construction method is provided using wooden bricks for building wall structures and the like. The bricks are formed from stocks of wood wastes cut into rectangular blocks. The wood grain of the blocks is arranged to extend longitudinally from a first end to a second end of the block to reduce the effects of wood shrinkage on the completed wood structure. A rabbet is formed in a forward face of the blocks adjacent a top side and the second end of the block. The blocks are laid out similarly to masonry bricks in a staggered pattern.
Patent CA-2283735-A1 (CA)
Inventor: ROSE RICHARD S
IPC: C07C25/18
Filed: 1998-03-20
Abstract: L'invention concerne des retardants de flamme comprenant des composés oligomères contenant du brome et comprenant des groupes aryle reliés par des chaînes aliphatiques. L'invention concerne également des compositions de retardants de flamme comprenant les retardants de flamme de la présente invention et des auxiliaires de retardants de flamme. L'invention concerne en outre des compositions polymères comprenant les retardants de flamme de la présente invention éventuellement combinés à un auxiliaire de retardant de flamme, ainsi qu'un procédé d'ignifugation d'une matière.
Patent CA-2284295-A1 (CA)
Inventor: BAK SIJO
IPC: B63C7/10
Filed: 1999-08-30
Abstract: This invention relates to air balloon like device having aluminum pipe in the middle of air bag. This air bag is made by the material like inflatable boat.  The air bag may readily be secured to strongly with the pipe using parts like ropes, cramps, rubber gaskets, nuts, steel plate, hook and bracelet. This device will be used for lifting ships or boats up form aground or controlling the ship's balance.  We can escape from any difficulties without pumping oil on the sea, also this device can be used to recover ships from deep sea bottom.
Patent CA-2284850-A1 (CA)
Title: Dna coding for protein which confers on bacterium escherichia coli resistance to l-homoserine, and method for producing l-amino acids
Inventor: ZAKATAEVA NATALYA PAVLOVNA
IPC: C12R1/19
Filed: 1999-10-12
Abstract: A bacterium which has an ability to produce an amino acid and in which a novel gene (rhtB) coding for a protein having an activity of making a bacterium having the protein L-homoserine-resistant is enhanced, is cultivated in a culture medium to produce and accumulate the amino acid in. the medium, and the amino acid is recovered from the medium.
Patent CA-2286030-A1 (CA)
Inventor: PITEL JOSE ANTONIO CUBERO
IPC: H01R43/02
Filed: 1998-04-23
Abstract: L'invention concerne un procédé pour souder des composants électroniques (13) à un circuit imprimé (10) comportant deux couches conductrices (12), qui consiste en ce qui suit: insérer un composant électronique (13) dans une première surface du circuit imprimé (10); souder le composant électronique (13) à une première face conductrice du circuit imprimé (10) au moyen d'un premier matériau de soudage (20) et; souder le composant électronique (13) à une deuxième face conductrice du circuit imprimé (10) au moyen d'un deuxième matériau (22) de soudage qui possède un point de fusion inférieur à celui du premier matériau de soudage (20).
Patent CA-2287686-A1 (CA)
Inventor: LA PORTA THOMAS F
IPC: H04L29/06
Filed: 1999-10-28
Abstract: A tunneling optimization is described in which packets are forwarded from a home agent to a mobile device by co-locating a foreign agent corresponding to a mobile device at the mobile device. When a mobile device acquires a new foreign agent, the mobile device notifies the home agent as to the corresponding foreign agent address. A packet received at the home agent having the mobile device as a packet header destination address is parsed and the foreign agent address is substituted for the mobile device address, and the packet is forwarded to the foreign agent. The foreign agent, upon receiving the packet, removes the foreign agent address and replaces the mobile device address as the packet header destination address. The packet is then forwarded to the mobile device.
Patent CA-2288732-A1 (CA)
Title: Superacid catalyzed formylation-rearrangement of saturated hydrocarbons
Inventor: OLAH GEORGE A
IPC: C07B61/00
Filed: 1998-05-06
Abstract: A method is disclosed for producing branched aliphatic ketones in hydrocarbon mixtures from isoalkanes by a superacid catalyzed formylation-rearrangement reaction. The method can be used to simultaneously isomerize, if necessary, and formylate hydrocarbons in complex hydrocarbon mixtures such as refinery streams, alkylate mixtures, and natural gas liquids. Natural gas liquids of low octane number are upgraded and oxygenated by adding to the natural gas liquids or reactively producing in the liquids branched aliphatic ketones.