baber/WOPTO huggingface dataset:
Patent CA-2227715-A1 (CA)
Title: Purification of electronic specialty gases by vapor phase transfilling
Inventor: JACKSIER TRACEY
IPC: F25J3/08
Filed: 1998-01-21
Abstract: A system and method for purifying liquefied corrosive gases of metallic impurities is described. The principle for this purification method relies on vapor-phase transfilling the vapor phase from a source container into a receiving container. This method has been observed to decrease metal concentrations by a factor of at least 1000 and decreases the metallic impurity levels in the resulting condensate. The vapor transfer is accomplished by controlled differential pressure rather than mechanical pumping, thereby generating no particle or metal impurities.
Patent CA-2228403-A1 (CA)
Inventor: MANN STEVE
IPC: H04N5/232
Filed: 1998-02-02
Abstract: A novel means and apparatus for a new kind of photography is described. In particular, multiple exposures of the same scene or object are acquired by a camera at a fixed location, while at the same time, the artist taking the picture may freely roam about the scene and selectively illuminate various objects in the space visible to the fixed camera. The artist carries one or more portable light sources, interfaced to a wearable computer system, which is connected (wirelessly or otherwise) to a second computer within or connected to the fixed camera. In this way, the artist can control the remote camera so that it gathers multiple exposures, so that the artist can apply layers of light, through multiple exposures to the scene, in a manner analogous to how an artist applies layers of paint to a canvas. Typically the artist's wearable computer contains a display which shows the state of the image, updating the display with each new exposure. An interface (typically taking the form of a chording keyboard built into the handle of the light source) allows the artist to erase any desired exposure, or to change the intensity or color of any of the exposures and see the effect, as it would appear from the perspective of the fixed camera. Because of the artist's ability to constantly see the small incremental effect of the light sources, the apparatus behaves as a true extension of the artist's mind and body.
Patent CA-2230382-A1 (CA)
Inventor: ZSIFKOVITS WILHELM
IPC: A01N25/34
Filed: 1996-08-23
Abstract: L'invention concerne un emballage indéformable ainsi que des emballages pelliculaires pour substances actives toxiques ou dangereuses concentrées ou non. Les emballages sont constitués au moins en partie d'une substance thermoplastique à mouler soluble ou dispersible dans l'eau à base d'un ou de plusieurs matériaux d'ossature et plastifiants solubles ou dispersibles dans l'eau ou à base de sulfonates de lignine et/ou de leurs sels et dérivés, notamment des sulfonates de lignine et de magnésium, ainsi que de mélanges de ceux-ci, comme matériaux d'ossature et plastifiants. L'invention concerne également une substance thermoplastique à mouler soluble ou dispersible dans l'eau à base de sulfonates de lignine et/ou de leurs sels et dérivés, notamment des sulfonates de lignine et de magnésium, ainsi que de mélanges de ceux-ci, comme matériaux d'ossature et plastifiants.
Patent CA-2231005-A1 (CA)
Inventor: HAVLICEK LIBOR
IPC: C07D473/16
Filed: 1998-03-04
Abstract: Therapeutic uses of the compounds 2-([(3-hydroxypropyl)amino]-6-benzylamino)-9-isopropylpurine and 2-[(1-ethyl-2-hydroxyethyl)amino]-6-benzylamino)-9-isopropylpurine or pharmaceutical acceptable salts thereof are described.  These compounds are of particular benefit in the treatment of proliferative diseases such as cancers and leukemias. These compounds inhibit proliferation in a manner that does not induce changes in gene transcription i.e. they function at a level in the cell cycle regulatory control system that does not involve the regulation of gene expression.
Patent CA-2231192-A1 (CA)
Title: Pharmaceutical combination preparations containing erythropoietin and iron preparations
Inventor: LEHMANN PAUL
IPC: A61K38/18
Filed: 1996-09-12
Abstract: The present invention relates to a pharmaceutical combination preparation comprising 2,000 - 7,000 U of recombinant human erythropoietin (EPO) and 5 -20 mg of one Fe(III)-complex, it being possible to have the rhEPO and the Fe(III)-complex in separate forms of administration or in a uniform form of administration. The pharmaceutical preparation is used to treat anaemias or haemodialysis patients.
Patent CA-2231932-A1 (CA)
Title: System and method for processing dropped calls
Inventor: AMIN UMESH J
IPC: H04M3/42
Filed: 1998-03-12
Abstract: A method and apparatus for processing dropped calls. If, during an established call between two communication devices, a telecommunication network node determines that a communication link to one of the devices has been dropped, the node determines the cause of the dropped communication link and sends a status message to the non-dropped communication device. If a reconnection attempt is appropriate, the node attempts to reconnect to the dropped device. If a reconnection attempt is not appropriate, or if the reconnection attempt is unsuccessful, the non-dropped communication device is connected to a voice mail node. If the reconnection attempt is successful, the call between the two communication devices is re-established.
Patent CA-2237330-A1 (CA)
Title: System for storing and retrieving digitized data
Inventor: BUITRON ROBERT
IPC: G6 F17/27
Filed: 1996-09-13
Abstract: A database which stores various forms of communication as digitized data (1) on a computer-readable memory (10-16) for future access and retrieval. Using the proven reliability of a native file structure of a computer operating system (22), the database reduces overall complexity (24), increase stability (26), decrease access time to data (28), and decrease access time to various attributes about the data (30). These objectives are achieved by creating a flat database using the native operating system file structure (46), thus bypassing a more easily corruptible indexed database design created by a database engine. A single algorithm is used to find a path to data file which can be accessed using conventional search algorithms and techniques (20).  Furthermore, information concerning data file attributes can be accessed from the names of the digitized data files themselves (10-12).
Patent CA-2238030-A1 (CA)
Title: Testing method and apparatus for verifying correct connection of circuit elements
Inventor: NUMMELIN ARTO JUHANI
IPC: H04Q1/24
Filed: 1996-11-28
Abstract: A method and apparatus for testing for correct connection together of circuit elements in a circuit (10) formed of a plurality of redundant circuit portions (12). A coded signal is generated at afirst circuit element (14) and transmitted upon a signal path believed to connect the first circuit element with a second circuit element (16). If the coded signal is detected at the second circuit element, the correct connnection of the first circuit element togehter with the second circuit element is verified. Because a coded signal is generated, the correct connection between the circuit elements can be verified even when the signal path connecting the first and second circuit elements is formed of an optical, or other non-electrical, coupler.
Patent CA-2238914-A1 (CA)
Inventor: HENSEN EDWARD
IPC: A01G9/04
Filed: 1998-05-28
Abstract: The plant pot has a bottom surface with a plurality of drainage holes therethrough, and the saucer has a plurality of radially spaced-apart upward projections therefrom to engage selected ones of the drainage holes. The bottom surface of the plant pot has a raised central portion having an inner diameter corresponding approximately to the diameter of an imaginary circle defined by radially outermost points of the upward projections from the saucer, thereby facilitating axial alignment of the saucer relative to the plant pot. The upward projections have radially outwardly extending flanges adjacent distal ends thereof, the flanges being configured so as to extend slightly above and slightly radially outwardly from the selected ones of the drainage holes when installed, so as to provide snap-on securing of the saucer to the plant pot. Preferably, the saucer has a plurality of radially spaced-apart recesses extending upwardly from its bottom surface, positioned to accommodate the upward projections of another identical saucer when the saucers are stacked together. This significantly reduces the height of a stack of saucers, for easier and more economical shipping and handling.
Patent CA-2240303-A1 (CA)
Title: Retractable speaker assembly
Inventor: ELLERO STEVE
IPC: H04R1/02
Filed: 1998-06-11
Abstract: A retractable speaker assembly for a partition, such as a ceiling, having a housing containing a speaker, a cavity, an actuator and a panel. The housing is concealed by the panel when the assembly is in a closed position, and is exposed when the assembly is in an operable position. The actuator moves the assembly between the closed and operable positions. The panel is positioned in such a way that the cavity that contains the assembly is concealed by the panel.
Patent CA-2240462-A1 (CA)
Title: High-content famciclovir tablets
Inventor: GREENWAY MICHAEL JOHN
IPC: A61K9/20
Filed: 1997-01-13
Abstract: A pharmaceutical tablet wherein famciclovir is the active ingredient and wherein the percentage of famciclovir by weight in the tablet is 85% or greater.
Patent CA-2240803-A1 (CA)
Inventor: STEPHENS GARY BOYD
IPC: H04W4/02
Filed: 1998-06-16
Abstract: A method and system are presented in a wireless communications network for providing the geographic location of a mobile communications device to a user on a continuous basis. Data indicative of a geographic location of the mobile communications device is periodically compiled. The data indicative of the geographic location of the mobile communications device is thereafter converted into output data. Next, the output data is transferred to the mobile communications device. The mobile communications device includes an output device. The output data is then provided to the user via the output device such that the output data includes data indicative of a current geographic location of the mobile communications device. The output device can include a visual display unit. The output device can also include an audio unit. The output data can also include human discernable output data such as text that can be displayed on the visual displayed unit or announced to a user via the audio unit.
Patent CA-2241829-A1 (CA)
Title: Non-invasive powerline communications system
Inventor: BASTARACHE GARY R
IPC: H04B3/56
Filed: 1997-10-30
Abstract: A non-invasive powerline communications system includes: an apparatus (10) for generating communication signals at a first location for transmission on a powerline (12); an apparatus for reactively coupling the communication signals to the powerline (12); and an apparatus for receiving said the communication signals at a second location.
Patent CA-2244049-A1 (CA)
Inventor: ANDERS CHRISTINE
IPC: C08F228/02
Filed: 1998-07-27
Abstract: Disclosed is a copolymer derived from monomers comprising:  (A) maleic anhydride; (B) at least one vinyl alkyl ether having an alkyl radical of 1 to 6 carbon atoms; (C) at least one vinyl monomer containing a carboxyl or carboxylate group; and (D) at least one vinyl monomer containing a sulfuric acid, sulfate, sulfonic acid or sulfonate group.  The copolymer is useful for the production of products for use in the fields of foodstuffs and tobacco, the water industry and bioengineering, hygiene provision and, in particular, medicine.
Patent CA-2247529-A1 (CA)
Title: Obstacle detection system
Inventor: BAUM ABRAHAM
IPC: B61L23/04
Filed: 1997-02-27
Abstract: A system for alerting a driver of a vehicle of the presence of an obstacle in a track of the vehicle, comprising a sensor mounted on the vehicle for producing at least one sensor signal representative of a predetermined field of view of the track in front of the vehicle, and an obstacle detection device coupled to the sensor for processing the at least one sensor signal produced thereby so as to detect an obstacle in the track and produce an obstacle detect signal consequent thereto. An obstacle avoidance device is mounted in the vehicle and coupled to the obstacle detection device and is responsive to the obstacle detect signal for producing an obstacle avoidance signal.  According to a preferred embodiment, the track is a rail track, the vehicle is a railway engine and the sensor includes a video camera for imaging the track.  The resulting image is processed so as to detect a potential obstacle on the tracks allowing the brakes to be applied either manually or automatically.
Patent CA-2248826-A1 (CA)
Inventor: KUO SHENG-CHU
IPC: C07C233/76
Filed: 1997-02-14
Abstract: The invention provides 1,4-naphthoquinone compounds and a method for inhibiting tumor cell growth in a subject by administering such compounds. The compounds are represented by structures (I) or (II) where R1 is lower alkyl, halogenated lower alkyl, phenyl, benzyl, phenethyl, or -(CH2)mCOOX, where m is 2 or 3 and X is H, methyl, or ethyl; R2 is halo or NHY, where Y is hydrogen, lower alkyl, halogenated lower alkyl, hydroxylated lower alkyl, lower dialkylaminoalkyl, phenyl, benzyl, or phenethyl; R3 is lower alkyl, halogenated lower alkyl, phenyl, benzyl, phenethyl, or -(CH2)m-COOX, where m and X are as defined for R1 above; and R4 is hydrogen, lower alkyl, lower aminoalkyl, halogenated lower alkyl, phenyl, benzyl, or phenethyl.
Patent CA-2250449-A1 (CA)
Inventor: RATHORE RAM N S
IPC: H04M7/00
Filed: 1998-10-14
Abstract: Algorithms for call set up and monitoring of calls intended for high end customers, who prefer to be reached any time, any where and very fast. allow forquick call set up by referring to a customer profile data base in real time during the call set up process. The customer profile database includes all network addresses (telephone numbers, e.g., day time number evening number, wireless number, pagernumber, etc.) where the customer can be reached and will keep a record of the number where the customer was reached the last time. This service is implementedon a new NCP or as a new application on an existing NCP with sufficient capacity. The NCP data base includes several data elements for each customer: These include: the customer calling number indicating that a query to an NCP is needed before initiating the call set up; preferred call set up algorithm, e.g., call me where my last call completed; call according to day of the week and time of the day schedule, call all numbers simultaneously, connect directly to my mailbox or call my pager, etc., preferred calling numbers for each day of the week and the time of day; and the calling number where the most recent call was completed. In an emergency contactall the emergency contacts in the conference mode.
Patent CA-2250538-A1 (CA)
Inventor: MA STANLEY JEH-CHUN
IPC: H03K5/156
Filed: 1998-10-30
Abstract: A duty cycle regulator derives from an input clock of arbitrary duty cycle an output clock having an adjustable duty cycle of similar frequency. The invention comprises a bistable circuit for receiving an input clock pulse and providing the output clock, coupled through a feedback loop to an adjustable delay unit having a delay interval equal to an adjustable fraction of the input clock period. When an input clock pulse is received, the bistable circuit is set giving high signal to the delay unit, which after said delay interval resets the bistable circuit to give a low signal. The delay unit includes two charge pumps alternately feeding and draining electric charges into and from a low-pass filter. The delay interval can be adjusted to a desired duty cycle independent of the input clock frequency, by setting the ratio of electric currents through the two charge pumps.
Patent CA-2251610-A1 (CA)
Title: Outil a petite queue pour tours automatiques
Inventor: FOUNTAINE WILLIAM R
IPC: B23B27/16
Filed: 1997-04-10
Abstract: L'invention concerne un outil de coupe (10) à petite queue. La queue de l'outil (14) définit une section carrée d'une largeur (A) de 7 ou 8 mm, et un évidement de réception d'outil (16) à une extrémité. Une plaquette amovible rhombique (12) est logée dans l'évidement de réception (16), une partie substantielle des deux côtés (28, 30) de la plaquette amovible (12) s'étendant au-delà de l'extrémité de la queue (14) et formant une pointe coupante (32) pour couper une pièce à usiner. La plaquette amovible (12) définit un cercle inscrit (CI) ayant un diamètre (E) inférieur à celui dudit cercle (CI). Une attache filetée (36) permet de monter de manière fixe la plaquette amovible (12) à la queue (14). L'attache (36) est de préférence une vis de torsion à tête fraisée et définit un diamètre de tête maximum (E) inférieur à environ 70 % de celui du cercle inscrit (CI) de sorte que l'intégrité structurelle de la plaquette amovible (12) soit suffisante.
Patent CA-2252190-A1 (CA)
Title: Optical fiber switch circuit
Inventor: TAKAHASHI MITSUO
IPC: G02B26/08
Filed: 1998-10-29
Abstract: An optical fiber switch circuit combines optical fiber switches that is capable of switching the connection of many circuits at the same time by using fewer actuators. The optical fiber switch circuit combines at least one N × 2N (N = 2) optical fiber switch which employs optical fibers for switching the connection of an N number of movable optical fibers from one N number of fixed optical fibers of a 2N number of fixed optical fibers to the other N number of fixed optical fibers at the same time, and other optical fiber switches in accordance with the present invention. A 1 × 2N (N >= 2) optical fiber switch circuit, an N × N  matrix optical fiber switch circuit, and a 2 × 4N (N >= 2) optical fiber switch circuit are provided.
Patent CA-2255864-A1 (CA)
Title: A process for the manufacturing of a pressure vessel and a pressure vessel, especially for a water heater, made by the process
Inventor: NORRL W OLOF
IPC: F24H1/18
Filed: 1997-05-20
Abstract: A process for the manufacturing of a pressure vessel made from a thermoplastic material or a thermosetting resin. The vessel comprises a first and a second vessel end part, and possibly an intermediate tube part.     The vessel end parts include a circumfering shell (4) and each one dome (3). A number of partition and load distributing walls (5) stretch from the domes (3) towards the open part of each vessel end part. The possible intermediate tube part includes similar walls (5). The edges of the walls (5) will meet when the different parts are joined. A number of cells (6) are formed between the walls (5). A number of crossing areas are formed between intersecting walls (5). At least one crossing area is provided with a determination by achieving a hole (14) from the outside of the dome. The hole (14) is bigger than the crossing area and has a depth greater than thickness of the dome pan (3).
Patent CA-2256381-A1 (CA)
Title: Method of joining rail vehicle components and subassemblies by adhesion
Inventor: SCH HL WOLFGANG
IPC: B62D27/02
Filed: 1996-05-28
Abstract: The invention concerns a method of joining rail vehicle components and subassemblies by adhesion. This method combines the application of an adhesive which imparts permanent strength but hardens over a relatively long period of time with the application of an adhesive which rapidly imparts handling strength, complicated configurations of the joins to be stuck and high expenditure on equipment having to be avoided, manufacturing tolerances having to be compensated and specific minimum adhered join thicknesses having to be observed. Furthermore, the wetting with adhesive on selected join faces is to be restricted, without having to remove and dispose of the marginal borders.  This problem is solved in that a rapidly adhering and inherently dimensionally stable first adhesive layer (4) is applied to first join faces (2.1, 3.1), and a second adhesive (5) which takes longer to harden is applied to second join faces (2.2, 3.2). The components are joined before or after the second adhesive layer (5) is applied, the first adhesive layer (4) rapidly imparting handling strength and maintaining a predetermined join spacing, whilst the second adhesive layer (5) fills the set join spacing and, after hardening, imparts permanent strength. The adhesive used for the first adhesive layer (4) is also used as a residual marginal border.
Patent CA-2256521-A1 (CA)
Title: Procede et presse de production de blocs colles
Inventor: LUNDQVIST AKE
IPC: B27M3/00
Filed: 1997-06-17
Abstract: L'invention concerne un procédé et un dispositif de production d'un bloc collé constitué de douves de bois allongées de section triangulaire. Les douves de bois sont posées l'une à côté de l'autre en alternance avec leurs faces de base vers le bas et leurs faces de base vers le haut, et on applique un adhésif contre des surfaces adjacentes entre les douves. Une presse (13, 14, 21-33) applique une force de pression principale pour coller les douves fermement ensemble transversalement aux faces de base desdites douves.
Patent CA-2258058-A1 (CA)
Inventor: GARY LONNIE F
IPC: G09F1/00
Filed: 1998-12-30
Abstract: A molded product display system having an array of interconnected, tearably releasable, molded plastic parts, and a display card that is preferably supported by the array of plastic parts for display of the parts at the point of sale. The array of molded parts preferably includes a molded section defining an aperture usable for hanging the molded product display system from a support rod or other hanger at the point of sale. The display card preferably includes a plurality of apertures or slits useful for releasably attaching the display card to the array of molded parts.
Patent CA-2260685-A1 (CA)
Inventor: CHENGALVARAYAN RATHINAVELU
IPC: G10L25/24
Filed: 1999-02-04
Abstract: The proposed model aims at finding an optimal linear transformation on the Mel-warped DFT features according to the minimum classification error (MCE) criterion.  This linear transformation, along with the (NSHMM) parameters, are automatically trained using the gradient ascent method. An advantageous error rate reduction can be realized on a standard 39-class TIMTT phone classification task in comparison with the MCE-trained NSHMM using conventional preprocessing techniques.
Patent CA-2260913-A1 (CA)
Inventor: WOODS TERRY KENNETH
IPC: B60C9/08
Filed: 1999-02-05
Abstract: The present invention relates to a pneumatic radial tire wherein the carcass ply contains a rubberized layer of steel strands of untwisted filaments.
Patent CA-2261603-A1 (CA)
Inventor: LI JUN
IPC: C08B11/20
Filed: 1998-04-27
Abstract: Galactosylated hydroxyalkyl polysaccharides wherein galactose moieties are bound to the hydroxyalkyl polysaccharide by galactosidic bonds, and a process for preparing the galactosylated hydroxyalkyl polysaccharides having the steps: a) providing at least one hydroxyalkyl polysaccharide; and b) treating said hydroxyalkyl polysaccharide with a galactose donor in the presence of galactosidase enzyme for a time sufficient to convert at least a portion of said hydroxyl groups to galactosides.