baber/WOPTO huggingface dataset:
Patent CA-2265015-A1 (CA)
Title: High-performance electro-optic intensity modulator using polymeric waveguides and grating modulation
Inventor: SUN DE-GUI
IPC: G02F1/313
Filed: 1999-03-05
Abstract: A high-performance electrooptic intensity modulator using polymeric waveguides utilizes and a dumping effect and high-efficiency modulation process is implemented by a grating modulation. These two waveguides can be either single-mode or multi-mode, even highly multimode. In accordence with theoretical study, the total coupling efficiency between two waveguides can not be achieved a high value for both single- and multi-mode waveguides. The introduction of a modulated grating-dumping wall on the outside edge of a channel makes the coupling between two waveguides become unidirectional and the coupling efficiency can be achieved to be approximately 100% in theory.  Furthermore, a high-efficiency electro-optic intensity modulator is implemented. These two waveguide channels in this intensity modulator may have large dimensions, so this device can support either low or high power operation. Thereby this electro-optic intensity modulator is called high performance modulator and can be developed into either a single optical switch or a waveguide switch array of optical cross-connect for fiber-optic communication.
Patent CA-2265727-A1 (CA)
Title: Heterocyclic compounds and their use for isolating nucleic acids
Inventor: VON DER ELTZ HERBERT
IPC: A61K31/7072
Filed: 1997-09-11
Abstract: The present invention pertains to compounds of general formula (I), where R1 to R7 have the notations given in the application, as well as preparation thereof. Compounds can be used as substrates for RNA and DNA polymerases and consequently incorporated to RNA our DNA oligonucleotides, including for the purpose of labelling and isolating nucleic acids and DNA sequencing.
Patent CA-2266009-A1 (CA)
Inventor: LEITNER HELMUT
IPC: C08J5/12
Filed: 1999-04-07
Abstract: Process for improving the connection of an elastomeric, polymeric material to a substrate during the shaping and volcanization thereonto, wherein the substrate is wetted in the region of connection with a liquid adhesion promoter composition, the coating so formed is solidified, the elastomeric material subsequently formed thereonto and solidified by volcanization, whereby an aqueous and/or alcoholic solution of a thiocyanatosilane is used as the adhesion promoter. The specific adhesive strength of the rubber compound on the substrate is significantly increased.
Patent CA-2266010-A1 (CA)
Title: Thermal cycler for automatic performance of the polymerase chain reaction with close temperature control
Inventor: MOSSA ALBERT CARMELO
IPC: C12M1/40
Filed: 1991-11-29
Abstract: An   instrument  for performing highly  accurate  PCR employing a sample block in microtiter tray format.   The sample block has local balance and local symmetry.  A three zone film heater controlled by a computer and ramp cooling solenoid valves also controlled by the computer for gating coolant  flow  through  the  block  controls  the  block temperature.    Constant bias  cooling is  used  for  small changes.    Sample  temperature  is  calculated  instead  of measured.  A heated cover deforms plastic caps to apply a minimum acceptable threshold force for seating the tubes and thermally isolates them.   The control software includes diagnostics.   An install program tests and characterizes the instrument.  A new user interface is used.  Disposable, multipiece  plastic  microtiter trays  to  give  individual freedom to sample tubes are taught.
Patent CA-2269090-A1 (CA)
Inventor: SRIVASTAVA PRAMOD K
IPC: A61P31/04
Filed: 1997-10-06
Abstract: The present invention provides methods for generating antigen-reative cytotoxic T cells in vitro comprising culturing immune cells and antigenic cells that have at least one MHC allele in common (and preferably, are syngeneic), in which the antigenic cells have been treated according to the methods of the invention. The antigenic cells are treated by subjecting them to osmotic shock followed by irradiation. As a result, a subset of T cells are activated and mature into antigen-reactive cytotoxic T cells. The effectiveness of the procedure may be enhanced by repeated restimulations and/or the addition of heat shock protein-peptide complexes. Methods and compositions are also disclosed for the treatment and prevention in a subject of cancer or infectious disease comprising administering to the subject matched cytotoxic T cells that are generated in vitro by the present methods.
Patent CA-2271771-A1 (CA)
Inventor: TALAMONTI ANTHONY R
IPC: A61M1/00
Filed: 1997-08-12
Abstract: A disposable device (10) for controlling the rate of suction to and from a bodily organ, such as the stomach, during a lavage procedure that involves the use of a movable controller (32) that slides back and forth over an opening (30) in the main body (18) of the device. The interior opening of the device which is placed in a flowline (12) that extends from the stomach upstream to a downstream (22) collection vessel has a tapered flow path (26) that allows for the uninterrupted flow of pill fragments or stomach contents through the flowline. A lateral flow path (28) that extends from an opening (30) in the exterior of the main body to the main flow path (26) enables an operator to vary the suction pressure to or from the patient by varying the size of the exterior opening through the use of the movable controller.
Patent CA-2274713-A1 (CA)
Title: System and method for developing vru voice dialogue
Inventor: HAMBLETON MYRA
IPC: G06F9/44
Filed: 1997-12-22
Abstract: A system and method for developing a VRU program accomplished in parts is disclosed. A prototype of the customer's desired conversation is created which is a summary of the customer's VRU requirements (400). This summary is used to verify customer satisfaction with the verbal conversations as well as the sufficiency of information for host interaction prior to any actual VRU  programming being commenced. Thereafter, a framework of the VRU program to be completed as a functioning program by the developer may be generated from this summary (401). Links are maintained between the summary and a VRU program created through use of the framework to aid in development and maintaining synchronization between the VRU program and the summary (414). The linked summary and program provide easier modification as changes by the customer with only reference to the summary may be easily incorporated into the linked program.
Patent CA-2277036-A1 (CA)
Inventor: EAST JEFF
IPC: B62J23/00
Filed: 1999-07-08
Abstract: The purpose of this invention is to protect the paint on a bicycle frame. It raps around the diameter of the tubing fastened by the velcro.Its placement is determined by the contact points between the frame and where its leaned.
Patent CA-2278247-A1 (CA)
Title: Hemostasis promoting device for sealing a puncture in a patient
Inventor: HUSS BRADLEY D
IPC: A61B17/00
Filed: 1998-01-21
Abstract: A hemostasis promoting device (20) is disclosed for sealing a puncture or puncture (24) in the body of a patient wherein the closure device (22) includes an anchor member (32), a collagen plug (30), a filament and a bioabsorbable tamping member (130) wherein the tamping member includes a clot promoting agent therein to prevent capillary bleeding in the proximal portion of the puncture and to eliminate blood seepage past the collagen plug to ensure that the patient may be promptly and reliably ambulated within a relatively short period of time once the closure device has been administered to the patient.
Patent CA-2279237-A1 (CA)
Title: Laser video display system and method
Inventor: KARAKAWA MASAYUKI
IPC: H04N9/31
Filed: 1998-01-28
Abstract: A full color, pulsed laser video system having solid state red (R), green (G) and blue (B) lasers (10, 12, 14) as a source, and with a projection screen having a two-channel image (24) for the screen, and with optical fiber remote image delivery (30).
Patent CA-2280095-A1 (CA)
Inventor: SHIRLEY DAVID A
IPC: F16F9/32
Filed: 1998-02-02
Abstract: Un amortisseur sensible à l'accélération comprend un corps tubulaire et un ensemble piston, disposé dans ledit corps, qui divise celui-ci en une chambre supérieure et une chambre inférieure. Le piston est relié à la roue d'un véhicule et le corps au châssis dudit véhicule. Un fluide peut passer entre les chambres supérieure et inférieure avec un débit réduit durant l'extension ou la compression de l'amortisseur. Un premier orifice fait passer le fluide de la chambre inférieure à la chambre supérieure quand la roue se déplace vers le bas. Une masse inertielle mobile, disposée dans l'ensemble piston, ouvre le premier orifice quand la roue se déplace vers le bas, de façon à accroître le passage du fluide entre les chambres. Une cavité placée sous la masse inertielle applique une pression suffisante à cette dernière, de façon à la maintenir dans une position orifice ouvert durant le passage du fluide une fois que le déplacement vers le bas a diminué. Un déflecteur de fluide applique une pression fluidique suffisante sur la masse inertielle pour la maintenir dans une position orifice fermé quand le déplacement vers le bas de la roue a diminué ou cessé. Un système de limitation de la pression, comprenant un orifice partant de la cavité et une soupape de décharge, permet de limiter la pression fluidique dans ladite cavité, ce qui minimise le bruit mécanique quand la masse inertielle passe en position orifice ouvert.
Patent CA-2280619-A1 (CA)
Inventor: CARBONE CHRISTOPHER A
IPC: G08B13/19
Filed: 1999-08-23
Abstract: A finger guard for use with an electronic device is provided for restricting physical access to a component of the electronic device having an uninsulated surface adapted to carry a voltage. The apparatus includes a housing which defines a first opening, and which is adapted to mount to the electronic device so that the first opening permits passage of passive infrared energy and ambient light to the component. The apparatus further includes a projection arrangement, extending from the housing, which limits physical access to the surface of the component through the first opening, and defining a second opening through which the infrared energy can enter and pass through the first opening to the component. An electronic circuit can also be provided which limits current being provided to an uninsulated component, such as an infrared or ambient light detector of the electronic device, from a circuit of the electronic device. The apparatus includes a resistive element which couples a terminal of the uninsulated component to ground, and a capacitive element which also couples the terminal of the uninsulated component to ground. The resistive and capacitive elements have resistance and capacitance values, respectively, which limit the current to less than about 500µA.
Patent CA-2282373-A1 (CA)
Inventor: SCHUG KLAUS H
IPC: G06F12/08
Filed: 1998-12-24
Abstract: A computer level 1 cache memory design with cache windowing divides a large level 1 cache into smaller sizes called windows, allowing the cache to provide more data faster to the CPU. Cache windowing provides the fast access times of a small level 1 cache through fewer, shorter paths and less circuitry than a large cache with multiple associative cache sets. Cache windowing allows context switching to occur with a simple change in cache window designation, eliminating the wait for cache reloading. Simulations of real cache implementations show an average of approximately 30 % improvement in CPU  throughput with cache windowing, scaling with CPU speed increases. The resulting system 1) maintains or improves CPU utilization rates as CPU speeds increase, 2) provides large level 1 caches while maintaining cache access times of one CPU clock cycle, and 3) provides high CPU utilization rates for those processing applications where locality of memory references is poor (e.g., networking applications).
Patent CA-2282648-A1 (CA)
Title: Pansements
Inventor: HARDWICK STEVEN THOMAS
IPC: D01F6/82
Filed: 1998-02-27
Abstract: L'invention se rapporte à une fibre élastique formée à partir d'une matière élastomère. Selon cette invention, la fibre atteint une force de compression efficace pour une extension située entre 20 et 60 %, valeur à partir de laquelle toute extension ultérieure de la fibre, jusqu'à une extension de 100 %, est simplement accompagnée d'une faible augmentation de la force de compression. La fibre élastique résiste à la dégradation par les huiles hydrocarbures. La matière élastomère contient des copolymères séquencés segmentés à hétérochaîne.
Patent CA-2285975-A1 (CA)
Inventor: HORNUNG MICHAEL
IPC: C23C4/10
Filed: 1998-03-24
Abstract: The invention relates to a support body with a coating of at least 95% by weight titanium boride, said coating having an oxygen content of less than or equal to 1% by weight, a metallic impurities content of less than or equal to 0.5% by weight, and a specific electrical resistance of less than or equal to 10 µ.OMEGA..cndot.m at room temperature.
Patent CA-2287258-A1 (CA)
Title: System and method for demand-driven loading of rules in a firewall
Inventor: VRSALOVIC DALIBOR
IPC: H04L29/06
Filed: 1999-10-22
Abstract: A system and method for loading a filtering rule at a firewall. A firewall receives a packet and determines if a rule that pertains to the packet is loaded at the firewall. If a pertinent rule is found, it is implemented and the action prescribed by the rule for the packet is performed. If no pertinent rule is found, then a pertinent rule is retrieved from a source external to the firewall, and loaded at the firewall.  The rule is then implemented for the packet. After the rule expires, e.g., when the user logs off, the rule is deleted from the firewall.
Patent CA-2288523-A1 (CA)
Title: Automatic splicer for unwinder
Inventor: KLIMEK WAYNE D
IPC: B65H21/00
Filed: 1999-11-01
Abstract: A splicing apparatus for an unwinder automatically splices the trailing end of a web from one roll to the leading end of a web from a second roll. A pair of roll support frames are mounted for movement between an unwinding position in which a roll on the support frame is aligned with the path of web movement and a loading position in which a roll on the support frame is laterally offset from the path of web movement.      A vacuum retainer is mounted on each of the roll support frames for retaining a leading edge of the web of a new roll. A movable vacuum belt is mounted adjacent the path of web movement, and a slitter is mounted upstream of the vacuum belt. When a first roll in the unwinding position is to be replaced, the first web is secured bar the vacuum belt and cut by the slitter to form a trailing end. The roll support frames are moved to bring a second roll into the unwinding position. The leading end portion of the second web is adjacent the trailing end portion of the first web. A ply bonder presses the two webs against the vacuum retainer to bond the webs as the vacuum belt advances the trailing end of the first web.
Patent CA-2290042-A1 (CA)
Inventor: STARK STEPHEN T
IPC: G01F1/10
Filed: 1999-11-17
Abstract: An apparatus for detecting an anomaly in a flowing stream includes a set of blades rotatably suspended in the flowing stream and aligned with a normal flow direction of the flowing stream. The blades are configured to rotate at one rate when the anomaly is present in the flowing stream and to rotate at a different rate when the anomaly is absent from the flowing stream. A device is prescribed for measuring rate of rotation and rotation direction of the blades.
Patent CA-2290427-A1 (CA)
Title: Scroll-type fluid displacement apparatus including an eccentric crank mechanism having an elongated shaft
Inventor: WOOD STEPHEN J
IPC: F01C1/02
Filed: 1999-03-17
Abstract: A scroll-type fluid displacement apparatus including at least two scroll members, with each scroll member having a plate and a spiral involute extending from the plate. The spiral involutes mesh to define fluid voids between the scroll members that become smaller towards the center of the scroll members. The apparatus also includes an eccentric crank mechanism having an elongated shaft with an eccentric portion. The elongated shaft is connected at one end to a motor and at another end to a machine, while the eccentric portion is rotatably received by one of the scroll members such that the scroll members will orbit with respect to one another as the shaft is turned by the motor. The apparatus also includes at least one eccentric guide for assisting the eccentric crank mechanism in retaining the scroll members in an orbiting relationship. According to one embodiment, the eccentric guide comprises a second eccentric crank mechanism having an elongated shaft with an eccentric portion rotatably received by one of the scroll members. According to another embodiment, the elongated shaft of the second eccentric crank mechanism is connected at one end to a motor and at another end to a machine.
Patent CA-2290978-A1 (CA)
Inventor: WIETZKE DONALD L
IPC: F23C10/18
Filed: 1998-06-26
Abstract: A fluidized bed reactor including in its lower part a furnace section having a bed of fluidized solid particles, the furnace section being delimited by side walls such as external side walls (22, 24) and/or partition walls (34, 36) and a bottom grid (28', 28"), and a supplying device for introducing gas, e.g. secondary air, into the furnace section at a level above the bottom grid, the supplying device including a gas source chamber (38"), an opening (48) in at least one of the side walls at a level above the bottom grid, and a conduit (42, 44) having a first end connected to the opening and a second end (52) connected to the gas source chamber.      The conduit includes a solid flow seal preventing solid particles from flowing backwards from the furnace section into the conduit in a manner preventing or noticeably decreasing introduction of gas from the gas source chamber to the furnace section.
Patent CA-2291545-A1 (CA)
Inventor: BOND BRUCE JOHN
IPC: E21B47/022
Filed: 1999-12-03
Abstract: A method and apparatus for use in creating a magnetic declination profile for a borehole. The method includes the steps of making a magnetic directional measurement at a longitudinal location in the borehole and at a magnetic measurement orientation, making a reference directional measurement at a reference measurement orientation, wherein there is a known orientation relationship between the magnetic measurement orientation and the reference measurement orientation, and obtaining a value of magnetic declination at the longitudinal location in the borehole using the magnetic directional measurement, the reference directional measurement and the orientation relationship. The apparatus includes a magnetic instrument for making a magnetic directional measurement, a magnetic orientation calibration indicator associated with the magnetic instrument for providing a magnetic instrument calibration orientation, a reference instrument linked with the magnetic instrument for making a reference directional measurement and a reference orientation calibration indicator associated with the reference instrument for providing a reference instrument calibration orientation.
Patent CA-2293433-A1 (CA)
Inventor: RANE DINANATH F
IPC: C07D401/12
Filed: 1998-06-15
Abstract: Novel compounds of formula (1.0), wherein a represents N or NO, R1 and R3 are halo, R2 and R4 are independently H or halo provided that at least one is H, X is C, CH or N, and T represents (i) wherein R5 is H(C1-C6)alkyl or a bond; b and c are independently 0 to 3 and Y is a three, four, five or six membered cycloalkyl ring, pyridyl, pyrazinyl or phenyl are disclosed. Pharmaceutical compositions containing such compounds, methods of inhibiting farnesyl protein transferase and methods for treating tumor cells using such compounds or compositions are also disclosed.
Patent CA-2293838-A1 (CA)
Title: Device for altering the appearance of valuable articles and container comprising same
Inventor: GRAL RENE
IPC: E05G1/00
Filed: 1998-06-11
Abstract: The invention concerns a device for altering the appearance of valuable articles comprising at least a reservoir (22) filled with a fluid adapted to soil said articles and a pyrotechnic charge (24) associated with said reservoir (22) for opening the latter to release said fluid on said articles. The (each) reservoir (22) is substantially defined by a wall made of a fragmentation material adapted, by the effect of the pyrotechnic charge (24), to produce a multitude of scattered elementary splinters. The invention is applicable to suitcases for the transport of funds.
Patent CA-2293935-A1 (CA)
Inventor: YU XIAO-MING
IPC: A01H3/04
Filed: 1999-12-21
Abstract: When overwintering plants are exposed to cold temperatures, they accumulate specific proteins, such as antifreeze proteins, that help the plants to survive exposure to subzero temperatures. We describe methods for inducing the accumulation of cold-regulated proteins, such as antifreeze proteins, in plants grown at warm temperatures. These methods include manipulation of growing and harvesting conditions and application of chemicals that increase levels of ethylene or initiate a signalling pathway similar to that of ethylene in the plants.
Patent CA-2295509-A1 (CA)
Title: Injection moulding unit for an injection moulding machine
Inventor: HEHL KARL
IPC: B29C45/50
Filed: 1998-07-21
Abstract: An injection-moulding unit for an injection-moulding machine has an injection motor (E) to activate an electromechanical injection unit (16) for axial movement of the feed screw (12). An electromechanical rotary motor is provided to be able to turn the feed screw independently of the axial movement. The rotary motor (R) and the injection motor (E) work via a first drive element (19) and a drive element (20) coaxial to the first drive element (19) to make the feed screw move. To transmit the axial movement to the feed screw (12) by a means of linear movement (16a) of the injection unit (16), there is an axial bearing element (21) directly between the first drive element (19) and the other drive element. The axial bearing element is a force-transmission element, but at the same time has the job of acting as a means of separation to allow the drive elements 19, 20 to rotate independently of one another and, if necessary, at the same time. This is a simple way of permitting compact coupling of the drive elements for dosing and injection on an injection-moulding unit.
Patent CA-2295971-A1 (CA)
Title: Pseudomonas exotoxin a-like chimeric immunogens
Inventor: FITZGERALD DAVID J
IPC: A61K39/002
Filed: 1998-07-10
Abstract: This invention provides Pseudomonas exotoxin A-like chimeric immunogens that include a non-native epitope in the Ib domain of Pseudomonas exotoxin. Methods of eliciting an immune response using these immunogens also are provided.
Patent CA-2296284-A1 (CA)
Title: Multilayer film and container
Inventor: KATAOKA TAMOTSU
IPC: B32B7/02
Filed: 1998-07-06
Abstract: The present invention provides a multilayer film comprising five layers, wherein each layer is constituted by a resin having the following density in that order: 1st layer: an ethylene .alpha.-olefin copolymer having a density of 0.930 to 0.950 g/cm3, 2nd layer: an ethylene-.alpha.-olefin copolymer having a density of 0.890 to 0.920 g/cm3, 3rd layer: a polypropylene having a density of 0.900 to 0.930 g/cm3, 4th layer: an ethylene-.alpha.-olefin copolymer having a density of 0.890 to 0.920 g/cm3, and 5th layer: an ethylene-.alpha.-olefin copolymer having a density of 0.915 to 0.950 g/cm3, and a container using the same. This container is useful for containing liquid medicine, blood or the like in the medical field.