baber/WOPTO huggingface dataset:
Patent CA-2350539-A1 (CA)
Inventor: YARDLEY JAMES T
IPC: C08G63/682
Filed: 1999-11-09
Abstract: Halofluorinated alkylene monomers are made by a method comprising the steps of: (a) subjecting a first polymer which is the reaction product of a fluorinated vinyl monomer and a vinyl comonomer to dehydrohalogenation to form a second polymer; (b) treating the second polymer with an oxidizing agent to form an oxidation product consisting of a .alpha., .omega.-dicarboxylic acid or an ester derivative thereof; and (c) treating said oxidation product with a reducing agent to form a reduction product consisting of a .alpha., .omega.-diol. Preferably, the first polymer has a structure of -[CH2CYZ(CF2CFX)n]m-wherein X and Y = F, C1 or Br; X and Y may be the same or different; Z = H, F, C1, Br, alkyl or perfluoroalkyl containing from about 1 to about 10 carbon atoms; n = an integer larger than about 1; and m is an integer between about 2 and about 105. The .alpha., .omega.-dicarboxylic acids and .alpha., .omega.-diols produced herein can be directly used as polycondensation monomers.  Alternatively, the .alpha., .omega.-dicarboxylic acids and .alpha., .omega.-diols can be further derivitized to tri-, tetra- or other multifunctional alcohols which may be directly used as condensation monomers or they may be converted to acrylates which may be photocured in the presence of a radical photoinitiator into transparent polymers which are useful as optical waveguiding materials.
Patent CA-2352582-A1 (CA)
Title: High power nickel-metal hydride batteries and high power alloys/electrodes for use therein
Inventor: YOUNG ROSA
IPC: H01M4/52
Filed: 1999-11-30
Abstract: A negative electrode alloy material including an effective amount of a catalyst to substantially increase the discharge capacity of the alloy at high discharge rates. Preferably the catalyst is palladium.
Patent CA-2353969-A1 (CA)
Title: Axial fluid flow inducing device with multiple magnetically driven impellers
Inventor: LOPATINSKY EDWARD
IPC: H02K7/14
Filed: 2000-10-06
Abstract: A multiple impeller flow inducing device in which driver coils are intermittently energized in timed relation to rotation of the impellers (20A, 20B) to interact with permanently magnetized portions of the impeller to rotate the same. The impellers (20A, 20B) can be rotated in opposite directions or in the same direction. A two section impeller construction allows each section to be magnetized in opposite pole orientation and when assembled creates alternate pole orientations of successive portions, acurate segments forming a shroud or the type of blades can be magnetized to provide the impeller magnetized portions. Stator guide vanes can be interposed between successive impellers.
Patent CA-2355005-A1 (CA)
Title: Multicast file transmission method
Inventor: EGUCHI KAZUYUKI
IPC: H04L47/43
Filed: 2001-08-10
Abstract: A multicast file transmission method is disclosed, which permits efficient multicast file transmission with high reliability even in the communication system, which uses in the up-link direction a specified transmission circuit, such as a multiple access satellite communication circuit. In the multicast file transmission method, a data file is composed of a plurality of blocks from a sending side to respective receiving destinations. At respective destinations, a test is carried out to find whether or not any transmitted packet is erroneous in the data file composed of a plurality of blocks after the end of said transmission of the data file. To the sending side from any of the respective receiving destinations, where any transmitted packet is found erroneous by the testing in the data file composed of a plurality of blocks after the end of said transmission of the data file, a request-for-retransmission signal is transmitted for requesting retransmission of the transmitted packet of data found erroneous in the data file received at any of respective receiving destinations. The request-for-retransmission signal is defined to indicate the offset position of the erroneous data in the transmitted packet of data and the data length of the erroneous data.
Patent CA-2355460-A1 (CA)
Inventor: LIAU BAI-GUANG
IPC: F16D43/04
Filed: 2001-08-17
Abstract: A clutch device includes a sleeve (30) which has recesses (31) and is engaged with an input shaft (20). Each of the recesses has a deep corner (311) and a shallow corner (312), and a roller (50) is received in each of the recesses. A driving disk (60) has a flange (61) enclosing the sleeve. A first ring member (70) and a second ring member (80) are mounted to the sleeve and each of the first ring member and the second ring member has slots (73, 84) which extend toward different directions. The slots in the first and the second ring member have a common space for receiving a ball (91) which is biased by a spring (92). An eccentric force shifts the balls and rotates the first ring member which has blocks (71) to shift the rollers to narrow corners to drive the driving disk.
Patent CA-2360088-A1 (CA)
Title: Device for quick connection of a tube to a rigid element
Inventor: BLIVET PHILIPPE
IPC: F16L37/084
Filed: 2000-01-17
Abstract: The device comprises a tubular insert (1) possessing external means (2) for fixing it in a bore (34) of the rigid element (30) and internal means for axially locking the tube inside the insert (1). The axial locking means comprise a sleeve (69) disposed inside the tubular insert (1) and possessing a broad end arranged to bear against an internal abutment member (75) of the tubular insert (61) and a narrow end that is elastically deformable in a radial direction between a small rest configuration where it forms an abutment for a shoulder (93) of the tube (90) and an enlarged elastically deformed configuration allowing the shoulder of the tube to pass through while it is being inserted.
Patent CA-2360930-A1 (CA)
Title: Multilateral well and electrical transmission system
Inventor: BOER JOHANNIS JOSEPHUS DEN
IPC: E21B47/12
Filed: 2000-01-31
Abstract: A multilateral well and electric transmission system comprises a branch well tubular (12, 13) in a branch wellbore (2, 3) which is connected in an electrically conductive manner to a primary well tubular (11) in a primary wellbore such that the primary and branch well tubulars form a link for transmission of electrical power and/or signals between the primary and branch wellbores so that low voltage electrical power can be transmitted from the surface to a battery (71) in the branch wellbore to trickle-charge the battery (71) and signals from battery-actuated measuring and control equipment in the branch wellbore can be transmitted back to surface via the walls of the electrically interconnected primary (11) and branch (12, 13) well tubulars.
Patent CA-2361135-A1 (CA)
Title: Ensemble de roulette pour porte de garage
Inventor: CARPINELLA RALPH
IPC: E05D15/16
Filed: 2000-08-04
Abstract: L'invention concerne un ensemble de roulette pour porte de garage comprenant un axe unique monobloc (16) et une roulette unique monobloc (12), tous deux formés en polymère ainsi qu'une rondelle d'étanchéité (94) et une cheville (70) toutes deux en métal aciéré. La roulette comprend une partie manchon (52) présentant un alésage axial (64), une partie arrondie (56) et une bande (58) s'étendant radialement de la partie arrondie vers la partie manchon. L'axe comprend un alésage axial (32), une partie d'assemblage (34) et une partie de bague de roulement (14). Cette dernière est montée rotative dans l'alésage de la partie manchon de la roulette. La cheville présente une tête (72) et une tige (74) s'étendant axialement depuis la tête à travers l'ouverture de la rondelle d'étanchéité dans l'alésage de l'axe. Un segment moleté (80) de la tige entre en contact par frottement avec l'alésage de l'axe.
Patent CA-2366870-A1 (CA)
Inventor: TINETTI SHEILA M
IPC: C09D11/00
Filed: 2002-01-07
Abstract: A composition comprising (A) a carboxylated styrene/butadiene latex having a monomodal particle size distribution; and (B) a dispersed alkali-soluble polymer having from 35 to 50% of polymerized residual acid monomer units, based on the total weight of monomers in the alkali-soluble polymer.
Patent CA-2367675-A1 (CA)
Inventor: HATA TORU
IPC: C23C22/13
Filed: 2002-01-16
Abstract: The present invention is to provide a metal surface-treating method which is capable of forming a zinc phosphate coat suitable for the cationic electrodeposition coating of a metallic shaped product, particularly a metallic shaped product having both an iron type metallic surface and a zinc type metallic surface and is suited to a closed system.        A metal surface-treating method which comprises a chemical conversion step of dipping a substrate in an acidic aqueous zinc phosphate solution, and using an aqueous zinc nitrite solution as an accelerator, said aqueous zinc nitrite solution being substantially free of calcium ion and containing 0 to 6500 ppm of sodium ion and 0 to 20 ppm of sulfate ion in case of assuming the concentration of zinc nitrite [Zn(NO2)2] to be 10 weight % as NO2.
Patent CA-2369049-A1 (CA)
Inventor: LINDSKOG JAN
IPC: H04L29/06
Filed: 2000-03-28
Abstract: In accordance with embodiments of the invention, in a Wireless Local Area Network (WLAN) in accordance with the HIPERLAN Type 2 standard where an Access Point (AP) and Mobile Terminals (MTs) use a duplex airlink having a MAC frame structure to communicate with each other, the AP places wakeup PDUs at different locations in a MAC frame, for example at different locations within the Frame Control Channel (FCCH) or the Slow Broadcast Channel (SBCH), to allow the MTs to conserve energy by maximizing sleep time. In accordance with other embodiments of the invention, the wakeup PDUs are ordered or sequenced by MAC-ID so that an MT can conclusively determine whether remaining wakeup PDUs in a sequence can contain its MAC-ID, and go to sleep early if they cannot. In accordance with another embodiment of the invention, a wakeup PDU  type can indicate to a corresponding MT whether the MT can expect downlink data later in the same MAC frame. In accordance with another embodiment of the invention, whether the MT should send a predetermined acknowledge signal to the AP in a) an allocated uplink channel in the same MAC frame, where the allocated uplink channel is identified in the wakeup PDU, or b) in the Random Access Channel (RACH) of the MAC frame. In addition, the wakeup PDU type can indicate to the MT that the MAC frame that it should awaken and remain awake to receive downlink data in the future.
Patent CA-2370784-A1 (CA)
Title: Endodontic fibers and methods of use therefor
Inventor: GOODSON MAX
IPC: A61P29/00
Filed: 2000-03-30
Abstract: The invention relates to endodontic fibers suitable for the sustained release of medicaments that have been homogeneously dispersed therein. Methods of using the endodontic fibers for the local delivery of medicaments, particularly antibiotics, to intracanal treatment sites are also described.
Patent CA-2377324-A1 (CA)
Title: Distribution strip for absorbent products
Inventor: FIELDS SONJA
IPC: A61F13/53
Filed: 2000-06-14
Abstract: The invention is directed to an absorbent structure for use in a disposable absorbent product for absorbing bodily fluids. The absorbent structure includes a fluid storage layer including matrix fibers and a superabsorbent polymer for receiving fluids and a distribution strip positioned below the fluid storage layer.
Patent CA-2378160-A1 (CA)
Inventor: CHOU RICHARD T
IPC: C08J9/04
Filed: 2000-06-28
Abstract: L'invention concerne des compositions de mousse de polymère réticulée contenant un copolymère acétate éthylène de vinyle, un copolymère ou ionomère acide et un agent de réticulation. Ces compositions présentent une haute résistance à la chaleur, une faible densité et une rémanence à la compression réduite. Elles sont notamment utilisées comme semelles intercalaires ou semelles intérieures pour chaussures.
Patent CA-2379245-A1 (CA)
Title: Needleless syringe operating with an impact wave generator through a wall
Inventor: BRUNET PIERRE
IPC: A61M5/30
Filed: 2000-06-30
Abstract: The technical field of the invention is that of needleless syringes used for intradermal, subcutaneous or intramuscular injections of active principle for therapeutic purposes. More particularly, the invention concerns a needleless syringe ( 10 ) comprising a propelling system, the active principle and an application guide ( 8 ), mainly characterised in that the propelling system consists of an impact wave generating device ( 3 ) and the active principle is arranged in at least a blind cavity ( 7 ) of the downstream surface ( 6 ) of a barrier ( 4 ) extended by the application guide ( 8 ). Thus, the active principle is expelled in the form of streamlined jets, driven at very high speed.
Patent CA-2379500-A1 (CA)
Title: Banjo tailpiece
Inventor: POTTER DENIS G
IPC: G10D3/12
Filed: 2002-03-28
Abstract: A banjo tailpiece includes a rigid one-piece 'L'-shaped member having a substantially planar first member generally orthogonal and formed as contiguous to a substantially planar second member, the first and second members forming substantially an 'L'-shape in cross section along a longitudinal axis of symmetry of the 'L'- shaped member. The first and second members each have opposite first and second ends. The first end of the first member may be substantially the width of a banjo bridge and is adapted  for releasable mounting to the first end of the first member of the ends of a laterally spaced apart array of substantially parallel banjo strings. The second end of the first member abu ts the first end of the second member so as to form a contiguous, rigid, substantially linear joint joining the first and second members. The joint fits over the rim of the banjo when the tailpiece is mounted to the banjo.
Patent CA-2381423-A1 (CA)
Title: Flow-through cable
Inventor: BERTINI GLEN J
IPC: H01B9/00
Filed: 2000-08-10
Abstract: A flow-through cable for transmitting information (20) is provided. The cable includes a jacket (22) having a length and an information conducting core (26) coaxially received within the jacket.  A first insulation layer (24) surrounds the information conducting core and has a dieletric strength. The cable further inCludes a first conduit (28) disposed within the jacket. The first conduit is adapted to permit a compound to flow therethrough and is chemically permeable to permit at least a portion of the compound to diffuse through the first conduit.
Patent CA-2381462-A1 (CA)
Title: Tubulure de remplissage pour le reservoir de carburant d'un vehicule automobile
Inventor: MAIER BERNHARD
IPC: B60K15/04
Filed: 2000-03-10
Abstract: L'invention concerne une tubulure de remplissage pour le réservoir de carburant d'un véhicule automobile, comportant un boîtier (12, 14) qui présente une fermeture extérieure (30) pouvant pivoter entre une position fermée et une position ouverte, ainsi qu'un deuxième élément de fermeture (50) logé à l'intérieur du boîtier et coopérant avec une soupape de décharge (16). Cette liaison entre le deuxième élément de fermeture et la soupape de décharge provoque l'ouverture automatique de cette dernière en cas de surpression dans le réservoir de carburant, afin de réaliser une compensation de pression, et lors de l'introduction d'un pistolet (100) de pompe de distribution de carburant, qui ouvre l'élément de fermeture (50). L'invention est caractérisée en ce qu'un levier (1) est monté de manière à pouvoir pivoter sur le boîtier (12). Ce levier, actionné par le pistolet (100) au moment de son introduction dans la tubulure, ouvre la soupape de décharge (16) avant même l'ouverture du deuxième élément de fermeture (50) par le pistolet (100).
Patent CA-2382534-A1 (CA)
Title: Packet network interfacing
Inventor: PATTERSON JOHN
IPC: H04L12/56
Filed: 2000-09-25
Abstract: A method of interfacing, and an interface for use, between two IPv6 domains separated by an IPv4 domain. The interface comprises a protocol converter, an encapsulator/un-encapsulator and a controller. When an IPv6 source wishes to send to a named destination in the other IPv6 domain, the source sends a normal IPv6 address request to its local DNS server, which relays it to an IPv6 name server in the other IPv6 domain. The response message, containing the true IPv6 address of the destination is received at the remote interface, which appends to the resulting protocol converted DNS response message a first additional record containing the true IPv6 address, and a second additional record containing the IPv4 address of that interface. Upon receipt at the other interface, the additional records are stripped off, their contents stored in an entry of a table, and the true IPv6 address written into the address record of the resulting IPv6 DNS  response message. When the interface receives a packet from an IPv6 host, it checks whether the destination address matches an entry of its table, and if so sends the packet to the encapsulator together with the IPv4 address of the remote interface. The remote interface extracts the source address and the address of the encapsulating interface and stores these in an entry in its corresponding table for use in encapsulating return packets to the source. If, however, the destination address is recognised as being of IPv4-compatible or IPv4-mapped format, the packet is sent to a protocol converter.
Patent CA-2382679-A1 (CA)
Inventor: ARMSTRONG STEPHEN WADE
IPC: H04R29/00
Filed: 2002-04-19
Abstract: A method for in-situ transducer modeling in a digital hearing instrument is provided. In one embodiment, a personal computer is coupled to a processing device in the digital hearing instrument and configures the processing device to operate as a level detector and a tone generator. An audio signal generated by the personal computer is received by a microphone-under-test (MUT) in the digital hearing instrument and the energy level of the received audio signal is determined by the level detector. In addition, an audio output signal generated by the tone generator and a speaker-under-test (SUT) in the digital hearing instrument is received by a microphone, and the energy level of the audio output signal is determined by a level meter. The energy levels of the received audio signal and the audio output signal are used by the personal computer to generate an electro-acoustic model of the digital hearing instrument.
Patent CA-2387267-A1 (CA)
Title: Methods of optimizing antibody variable region binding affinity
Inventor: WU HERREN
IPC: C07K16/28
Filed: 2000-10-13
Abstract: The invention provides a method of conferring donor CDR binding affinity onto an antibody acceptor variable region framework. The invention also provides a method of simultaneously grafting and optimizing the binding affinity of a variable region binding fragment. A method of optimizing the binding affinity of an antibody variable region is also provided. The variable region populations can be heavy or light chains and can be expressed as individual populations or they can be coexpressed to produce heteromeric variable region binding fragments.
Patent CA-2387738-A1 (CA)
Inventor: MAYRA-MAKINEN ANNIKA
IPC: A23L1/305
Filed: 2000-10-30
Abstract: The invention relates to a process for preparing a product containing antihypertensive peptides by fermenting a ca-sein-containing starting material with lactic acid bacteria. The invention also relates to the obtained product and its use as a functional product as such or as an ingredient or additive of edible substances.
Patent CA-2392781-A1 (CA)
Inventor: RAYMAN WILLIAM EARL
IPC: B65G67/04
Filed: 2002-07-09
Abstract: An improved method is disclosed for shipping very large tires which are typically used on very large vehicles such as earthmovers. The tires can be shipped so that less shipping and storage space is required.
Patent CA-2396933-A1 (CA)
Title: Procede et dispositif permettant d'assembler des sections d'un materiau bande thermoplastique
Inventor: HERING GERHARD KLAUS
IPC: B32B3/12
Filed: 2000-01-11
Abstract: L'invention concerne un procédé permettant d'assembler plusieurs sections (7) d'un matériau bande thermoplastique pour obtenir un bloc extensible (2). Selon ce procédé, on construit le bloc par répétition des opérations du procédé. L'invention concerne également un dispositif permettant la formation du bloc à une vitesse élevée.
Patent CA-2397250-A1 (CA)
Title: Process for the elimination of nox and n2o
Inventor: TUREK THOMAS
IPC: B01D53/86
Filed: 2001-01-09
Abstract: An apparatus and a process are described for reducing the content of NO x and N2O in process gases and waste gases. The apparatus encompasses at least one catalyst bed comprising a catalyst which is substantially composed of one or more iron-loaded zeolites, and two reaction zones, where the first zone (reaction zone I) serves for decomposing N2O and in the second zone (reaction zone II) NO x is reduced, and, located between the first and second zone, there is an apparatus for the introduction of NH3 gas.
Patent CA-2397434-A1 (CA)
Inventor: GHANTAE SRIKANT S
IPC: B60R21/00
Filed: 2002-08-12
Abstract: An over the highway vehicle having an occupant restraint system is disclosed. An improved harness for retaining an occupant in a bunk is also disclosed. The harness is connected to a bunk by a buckle and hinge arrangement. A frangible connection between an upstanding leaf of the hinge is provided which fails due to forces applied to the harness as a result of a collision. The system includes an occupant restraining strap and a buckle having a component attached to the strap and a mating component attached to the vehicle for releasably connecting the strap to the vehicle at a buckle location. An anchor securer the strap to the vehicle at a location spaced from the buckle location. The mating component to vehicle connection includes a pivot and a frangible connection for maintaining the mating component in a use position during normal vehicle operation and being designed to break upon vehicle impact causing a force of a magnitude greater than a predetermined normal magnitude whereby to permit the mating member to rotate about the pivot to position a span of the strap in a linear orientation between the pivot and the anchor.
Patent CA-2397492-A1 (CA)
Title: Method for nucleic acid transfection of cells
Inventor: NANTZ MICHAEL H
IPC: A61P43/00
Filed: 2001-01-19
Abstract: The present invention describes methods for introducing nucleic acids into a target cell using a transition metal enhancer. A mixture containing nucleic acid and a transition metal enhancer is exposed to cells. The nucleic acid is taken up into the interior of the cell with the aid of the transition metal enhancer. Since nucleic acids can encode a gene, the method can be used to replace a missing or defective gene in the cell. The method can also be used to deliver exogenous nucleic acids operatively coding for proteins that are secreted or released from target cells, thus resulting in a desired biological effect outside the cell. Alternatively, the methods of the present invention can be used to deliver exogenous nucleic acids into a target cell that are capable of regulating the expression of a predetermined endogenous gene. This can be accomplished by encoding the predetermined endogenous gene on the nucleic acid or by encoding the nucleic acid with a sequence that is the Watson-Crick complement of the mRNA corresponding to the endogenous gene.
Patent CA-2399901-A1 (CA)
Inventor: KAPLAN BRIAN
IPC: B65D25/20
Filed: 2001-02-16
Abstract: A calculation aid is disclosed forming an integral part of a medication bottle or closure cap. The calculation aid, in essence, is a detailed weight-dose conversion chart, promoting the accurate dispensing of the weight-specific dosage of a given elixir to a child. The closure cap or bottle includes a parallel rows of indicia for the weight of a child, calculated doses appropriate for the specific weight, and calculated quantity of elixir corresponding to the calculated dose. An aperture sleeve allows selected viewing of the indicia.