baber/WOPTO huggingface dataset:
Patent CA-2217916-A1 (CA)
Title: Random number generator and method for same
Inventor: BORZA STEPHEN J
IPC: G06V40/13
Filed: 1997-10-09
Abstract: A method and system for generating random numbers is disclosed wherein a CCD while not in normal use, captures ambient light and back scattered light. These light sources vary naturally over a range of intensities. Intensity values above and below a threshold value are decoded as "1" and "0" bits, respectively. The array of the CCD elements provides a number of single bit values or a single n bit value that is random or pseudo random. Calibration of the device over a brief period of time allows for improved performance of the device. Other transducer arrays such as capacitive fingerprint imagers may also be used for this purpose.
Patent CA-2219132-A1 (CA)
Title: Nucleosides with anti-hepatitis b virus activity
Inventor: SCHINAZI RAYMOND F
IPC: A61K38/21
Filed: 1996-06-07
Abstract: A method for the treatment of a host, and in particular, a human, infected with HBV is provided that includes administering an HBV-treatment amount of the stabilized nucleotide of a nucleoside which exhibits anti-hepatitis B activity.
Patent CA-2219573-A1 (CA)
Title: Hitch mounted cargo carrier bike rack adapter
Inventor: BELINKY JACOB S
IPC: B60R9/10
Filed: 1997-10-28
Abstract: A bike rack cargo carrier for mounting to a vehicle hitch allowing bicycles to be transported outside the vehicle.  The bike carrier includes a drawbar adapted to be received within the vehicle hitch and a cargo platform adjustably attached to the drawbar to facilitate fore and aft adjustment of the platform relative to the rear of the vehicle.  The drawbar is provided with a vertical offset to position the platform further from the ground. A support stanchion is removably secured to the carrier platform to transport a plurality of bicycles in a vertical position.  The stanchion is adjustably mounted to the platform to accommodate different numbers of bikes.
Patent CA-2219865-A1 (CA)
Title: Blocked polyisocyanates with built-in hals stabilizer
Inventor: GRAS RAINER
IPC: C08G18/80
Filed: 1997-10-31
Abstract: Disclosed is a partially or completely blocked polyisocyanate having a built-in hindered amine light stabilizer formed from a blocking agent and an adduct of a diisocyanate and a polyol of the general formula:             (see fig.I) (wherein R is H or an alkyl or cycloalkyl group of 1-20 carbon atoms and X is H, -CH2 -CH (OH) -R, -CH3 or -COCH3), the adduct containing 2-20 NCO equivalents per OH equivalent.  The blocked polyisocyanate is useful in preparing a urethane product, such as a powder coating composition.
Patent CA-2220230-A1 (CA)
Title: Dental floss article
Inventor: GRAY THOMAS MICHAEL
IPC: A61Q11/00
Filed: 1997-03-04
Abstract: A hydrophobic fiber having a predetermined length and defined by at least one substantially rigid portion and at least one flexible portion, the at least one substantially rigid portion being defined by a discrete substantially rigid member that is made integral with the hydrophobic fiber such that the hydrophobic fiber completely encapsulates said discrete substantially rigid member.
Patent CA-2223406-A1 (CA)
Title: Apparatus for reading and processing image information
Inventor: EKLUND JAN-ERIK
IPC: H04N5/3745
Filed: 1996-06-03
Abstract: The present invention relates to a device for the input and processing of information comprising sensor elements arranged in matrix form, which are integrally formed on a substrate. Each sensor element comprises output electronics (3) and at least one photovoltaic cell (PD), which is adapted to convert an optical signal incident upon the photovoltaic cell to an electrical signal. The device according to the invention is characterised in that each sensor element is adapted to perform compensation of an offset error in the output electronics (3) forming part of the sensor element and that each sensor element is adapted to perform the said offset compensation independently of the other sensor elements in the device.
Patent CA-2223696-A1 (CA)
Title: Novel derivatives of swainsonine, processes for their preparation and their use as therapeutic agents
Inventor: CARVER JEREMY
IPC: A61K31/435
Filed: 1996-06-07
Abstract: The invention relates to novel mannosidase inhibitors of formula (I'), wherein one of R1, R2, R3, R4, R5, and R6 represents amino, halo, thiol, alkoxy, alkyl, aryl, thioalkyl, or thioaryl, and the others of R1, R2, R3, R4, R5, and R6 represent hydrogen, hydroxyl, amino, halo, thiol, alkoxy, alkyl, aryl, thioalkyl, or thioaryl, with the proviso that R3 and R6 are not both hydrogen and R1 and R4 are not both hydrogen when one of R2 and R5 is hydroxyl and the other of R2 and R5 is alkyl; R2 and R5 are not both hydrogen and R1 and R4 are not both hydrogen when one of R3 and R6 is alkyl or aryl and the other of R3 and R6 is hydrogen or hydroxyl; and R2 and R5 are not both hydrogen and R3 and R6 are not both hydrogen when one of R1 and R4 is hydroxyl and the other of R1 and R4 is alkyl.
Patent CA-2226377-A1 (CA)
Title: Remorque de transport polyvalente a plateforme suspendue articulee
Inventor: SAULCE ROGER LG
IPC: B62D63/06
Filed: 1998-03-18
Abstract: La présente invention a pour objet une remorque de transport utilisant une plateforme suspendue articulée. Ce dispositif comprend une plateforme (1) sur laquelle sont articulés un berceau composé de deux bras (6) solidaires d'un essieu traversant la plateforme transversalement environ en son milieu longitudinal. Les bras avants (6') sont articulés en (P2-P'2). Le haut de chaque bras est relié à une fourche composée de deux tirants (2) et d'un timon en Té (3). Ces tirants sont articulés en (P3-P'3) et (P4-P'4). L'attelage (4) est relié au véhicule tracteur qui, en marche avant, exerce une force (F). Cet effort permet le levage de la plateforme (1) lorsqu'elle pivote autour de (P1-P'1) et (P2-P'2). Cette rotation s'effectue autour des axes de roues (5) lorsque celle-ci sont immobilisées grâce aux cales (10). En position haute, telle que représentée, les tirants (2) sont bloqués sur les bras avants (6') aux points (S) et (S').
Patent CA-2227155-A1 (CA)
Inventor: LI CHUNG-MING
IPC: G01C19/5691
Filed: 1998-01-15
Abstract: The invention is a vibratory rotation sensor comprising a resonator and a housin g to which the resonator is attached and a method for reading out the standing-wave orienta tion angle utilizing a tracking angle which is maintained equal to the orientation angle on average. The resonator is a rotationally-symmetric thin-walled object that can be made to vibrate in a plura lity of standing-wave modes. The method includes applying driving voltages to housing electrodes and d etermining the orientation of a standing wave by performing operations on the resonator signal that arrives at a single resonator output port from one or more electrodes in close proximity to t he housing electrodes. A driving voltage may include either a pair of excitation voltages or a forcing voltage or both. An excitation voltage has essentially no effect on the resonator dynamics but carri es information pertaining to the tracking angle and the standing-wave parameters when it arrive s at the resonator output port. A forcing voltage causes forces to be applied to the resonator and thereby affects the dynamics of the resonator and the standing-wave parameters. The driving voltages applied to the housing electrodes are brought together into a single resonator signal as a resu lt of being transmitted through the housing-electrode-resonator-electrode capacitances to the resonator output port. In order to extract the standing-wave orientation angle, the excitation and forcing volta ges are designed to be separable by appropriate operations performed on the resonator signal.
Patent CA-2227993-A1 (CA)
Inventor: CRESPO WAYNE RODRIQUES
IPC: E05B65/464
Filed: 1998-01-26
Abstract: A multiple drawer interlocking system includes a plurality of the elongate locking elements; the track for confining the locking elements in string; biasing means for urging the locking elements into a contiguous series with each adjacent pair meeting at a junction; and the plurality of actuator devices each having a first unlocked state and a second locked state; each actuator device including an actuator element and a pair of opposing camming elements engaged with the adjacent ends of a pair of locking elements at a junction; each actuator element in the unlocked state being poised adjacent a junction of the string and in its second locked state being introduced into the associated junction between a pair of the locking elements to drive apart the camming elements and the associated locking elements against the urging of the biasing means to misalign all of the remaining junctions with respect to the remaining actuator devices and prevent the remaining actuator devices from moving into the locked state.
Patent CA-2228483-A1 (CA)
Title: Variable-grained memory sharing for clusters of symmetric multi-processors
Inventor: AGGARWAL ANSHU
IPC: H04L12/56
Filed: 1998-02-02
Abstract: In a distributed shared memory system, clusters of symmetric multi-processors are connected to each other by a network.  Each symmetric multi-processor includes a plurality of processors, a memory having addresses, and an input/output interface to interconnect the processors.  A software implemented method enables data sharing between the clusters of symmetric multi-processors using variable sized quantities of data called blocks.  A set of the addresses of the memories are designated as virtual shared addresses to store shared data, and a portion of the virtual shared addresses are allocated to store a shared data structure as one or more blocks.  The size of a particular allocated block can vary for different shared data structures.  Each block includes an integer number of lines, and each line includes a predetermined number of bytes of shared data.  Directory information of a particular block is stored in the memory of a processor designated as the home of the block.  The directory information includes the size of the particular block, the identity of the processor that last modified the data in the particular block, and the identity of a processor having a copy of the block.
Patent CA-2230166-A1 (CA)
Title: Crosslinkable copolymers comprising vinyl silane and vinyl esters of branched fatty acid
Inventor: HUYBRECHTS JOSEF THERESU
IPC: C08F218/10
Filed: 1998-02-23
Abstract: A copolymer composition and coating comprising the copolymer composition containing a vinyl silane of the formula   where R1 is an aryl or alkyl group having 1 to 10 carbon atoms and R2 is a hydrolysable group; and a vinyl ester of a branched fatty acid having the formula   wherein R3, R4, R5 are hydrogen or alkyl groups with 1 to 12 carbon atoms and wherein the total of R3, R4 and R5 contain at least 3 carbon atoms and optionally at least one olefinically unsaturated compound.
Patent CA-2231618-A1 (CA)
Title: Load distribution and management system
Inventor: PEABODY MARK A
IPC: H02J3/00
Filed: 1996-12-12
Abstract: An apparatus for and method of managing and distributing power from a supply limited of power is described. A plurality of outlets (68, 70) are connected to a plurality of power units (114). As additional outlets are used, the invention measures the amount of power drawn by the outlets. Outlets (68, 70) are enabled if the amount of measured power is less than a maximum amount of power available. Additional outlets not currently in use are disabled if the amount of measured power is greater than the maximum amount of power available.
Patent CA-2238806-A1 (CA)
Title: Aggregate hauling, spreading and compacting machine
Inventor: WULFF LAWRENCE H
IPC: B60P1/56
Filed: 1998-05-28
Abstract: An apparatus for hauling, spreading and compacting asphalt, gravel and like aggregates is a so-called belly-dump or bottom dump trailer with mechanisms for single pass delivery and compaction of aggregates to form road shoulders and the like.
Patent CA-2239072-A1 (CA)
Inventor: BAUDU PHILIPPE GUY NICOLAS
IPC: A61P31/12
Filed: 1996-11-19
Abstract: Le vaccin vivant recombinant comprend, comme vecteur, un herpèsvirus félin comprenant et exprimant au moins une séquence nucléotidique codant pour un polypeptide, cette séquence étant insérée dans les sites ORF5 et/ou ORF2. Formule de vaccin multivalent et fragments d'ADN de l'herpèsvirus félin.
Patent CA-2239929-A1 (CA)
Title: Method and device for cleaning trash racks
Inventor: DAVIGNON CHRISTIAN
IPC: E02B8/02
Filed: 1998-07-14
Abstract: A cleaning device for moving debris adjacent a trash rack, the device having a mounting base for mounting the device adjacent the trash rack and a longitudinally extending arm having a first end and a distal end, the arm being capable of being driven in a direction generally parallel to the longitudinal axis of the arm, a debris collecting assembly located at the arm distal end, the debris collecting assembly comprising a fixed jaw mounted on the arm and a mobile jaw moveably connected to the fixed jaw by a jaw connecting structure to allow the mobile arm to both pivot and move inwardly with respect to the fixed jaw.
Patent CA-2241305-A1 (CA)
Title: Composition a base de vesicules lipidiques et d'un poly(acide 2-acrylamido 2-methylpropane sulfonique) reticule et neutralise a au moins 90%
Inventor: TERREN NADIA
IPC: A61K8/00
Filed: 1998-07-07
Abstract: La présente invention se rapporte à une composition cosmétique et/ou dermatologi que comprenant une dispersion aqueuse de vésicules lipidiques contenant au moins un polymère poly(acide 2-acrylamido 2-méthylpropane sulfonique) réticulé et neutralisé à au moins 90%. Il comprend en général, distribués de façon aléatoire: a) de 90 à 99,9% en poids de motifs de formule générale (1) suivante: (voir fig. I) dans laquelle X+ désigne un cation ou un mélange de cations, au plus 10% mol des cations X+ pouvant être des protons H+; b) de 0,01 à 10% en poids de motifs réticulants provenant d'au moins un monomère ayant au moins deux doubles-liaisons oléfiniques; les proportions en po ids étant définis par rapport au poids total du polymère.
Patent CA-2241380-A1 (CA)
Title: Blood-compatible and bacteria-repellent nco-reactively modified copolymer
Inventor: LORENZ GUENTER
IPC: C08F8/00
Filed: 1998-06-22
Abstract: The present invention relates to an NCO-reactively modified copolymer which comprises (a) at least one monomer containing sulfonate groups,  (b) at least one monomer containing carboxyl groups and (c) at least one type of NCO-reactive group introduced after the copolymerization.  The invention further provides a process for preparing the copolymer, a process for modifying a hydrophilic surface with the copolymer by reaction with a polyisocyanate and a product for medical use having a surface modified by the above process.
Patent CA-2247563-A1 (CA)
Title: Z-fold pressure seal with side opening envelope
Inventor: CHIMERA JOSEPH T
IPC: B42D15/08
Filed: 1998-09-16
Abstract: A Z-folded mailer type business form is constructed so as to provide a maximum reply envelope area, and to allow the reply envelope to be readily opened by an automatic envelope opener, while allowing the outgoing and reply address to be easily variably imaged by a single pass through a printer and without requiring the use of removable labels.
Patent CA-2248509-A1 (CA)
Title: Mechanism for dispatching data units via a telecommunications network
Inventor: BANCILHON HERVE L
IPC: G06F13/00
Filed: 1998-09-30
Abstract: A dispatch mechanism is provided for dispatching data units, (e.g. datagrams or packets) divided into one or more fragments, via a telecommunications network. The dispatch mechanism includes a queue for queuing fragments for transmission. It further includes a queue controller operable when a fill level of the queue exceeds a threshold value to discard fragments of data units for which a fragment has not already been queued and to add to the queue fragments of data units for which a fragment has already been queued. The dispatch mechanism maintains a record of data units which are to be transmitted (that is when one fragment of the data unit has already been passed for despatch) and a record of data units which are to be dropped (that is data units for which a fragment has already been dropped). The dispatch mechanism enables more effective use of network capacity by reducing the possibility of incomplete data units being transmitted over the network. In other words, where one data unit fragment is dropped, a mechanism ensures that all remaining fragments of that data unit are dropped. Also, where one data unit fragment has been sent, the mechanism ensures that all otherfragments for that data unit are sent, irrespective of the fill level of the output queue when a data fragment for transmission is processed.
Patent CA-2248713-A1 (CA)
Inventor: BRUHN ESBEN
IPC: A61B19/08
Filed: 1997-03-25
Abstract: For the covering of operation patients it has become customary to use a heat reflecting wrapping sheet for protecting the patients against loss of heat. At the operation area, a hole is cut in this sheet, whereafter the usual, sterile cover sheets (20) are placed around the area (16) and spread over the patient and the table. With the invention it is realised that it is advantageous to combine these sheets, viz. in providing the cover sheets (20) as double layer products with associated, separate and edge connected wrapping sheets (22), whereby the sterile personnel can easily arrange for the required wrapping and at the same time form the opening in the wrapping material with full safety for a correct location thereof. It will then only be required that the wrapping sheets (22) be co-sterilized with the cover sheets.
Patent CA-2249068-A1 (CA)
Title: A stent insertion tool for use with a catheter sheath introducer
Inventor: SCHEIDT KARL K
IPC: A61F2/06
Filed: 1998-09-29
Abstract: In accordance with the present invention there is provided a stent insertion tool for insertion into a catheter prior to insertion of a balloon catheter having a stent crimped on the balloon. The tool is a rigid tubular member having a distal end for insertion into a catheter, a proximal for end for remaining outside of the catheter, and a longitudinal axis extending therebetween. The tool has a substantially smooth inner surface. The tool further includes a slot, having a predetermined width, extending along the longitudinal axis of the tubular member from its distal end to its proximal end.
Patent CA-2249408-A1 (CA)
Title: Delivery system having release barrier loaded zeolite
Inventor: MUELLER WILLIAM RICHARD
IPC: C11D17/04
Filed: 1997-03-05
Abstract: A laundry agent delivery particle is provided. The particle comprises: a) a porous carrier selected from the group consisting of Zeolite X, Zeolite Y and mixtures thereof, the porous carrier including a number of pore openings; and b) a release barrier having at least one deliverable agent residue and at least one size enlarging agent residue, the deliverable agent residue being incorporated into the porous carrier, the size enlarging agent residue having a hydrophilic portion and a hydrophobic portion, the hydrophilic portion incorporated into the porous carrier and in conjunction with the deliverable agent residue forming the release barrier wherein the cross-sectional area of the release barrier within the porous carrier is larger than the crosssectional area of the pore openings of the porous carrier. Preferred size enlarging agents include those having a fatty chain or alcohol chain in the hydrophobic portion, such as nonionic surfactants. Preferably, the particle is added to a granular detergent composition.
Patent CA-2252759-A1 (CA)
Title: Feuille de mousse de polystyrene destinee au formage profond d'articles, et articles ainsi formes a partir de ladite feuille
Inventor: WAGNER PHILIP A
IPC: B32B5/18
Filed: 1997-05-06
Abstract: L'invention concerne une feuille (A) de mousse de polystyrène permettant un thermoformage profond d'articles, et qui comprend 0,5 à 15 % en poids d'un composant caoutchouc, et 0,5 à 2,0 % en poids d'un agent de nucléation. Cette feuille possède une épaisseur uniforme comprise entre 0,060 et 0,250 pouces avec une tolérance de ± 0,10 pouces, une densité comprise entre 4 et 18 livres par pied cube, et une dimension alvéolaire moyenne comprise entre 0,12 et 0,34 mm. Eventuellement, on peut, avant thermoformage, revêtir ou stratifier par extrusion la feuille de mousse d'une ou plusieurs pellicules (22). Les articles ainsi obtenus ont des rapports d'étirage supérieurs à 1,0, une bonne capacité d'isolation thermique et un aspect agréable.
Patent CA-2258520-A1 (CA)
Inventor: SVENSSON ANDERS
IPC: B23D57/00
Filed: 1997-06-17
Abstract: In a wire saw primarily intended for sawing stone with the aid of light portable equipment, a continuous, easily flexed wire loop (18) or wire (40) on which cutting elements (25) are uniformly spaced includes elastomeric spacing elements (41) between the cutting elements (25). With the intention of increasing the flexibility of the wire loop (18) and its ability to endure bending as it runs around guide sprocket wheels of small diameter, the diameter of the wire (40) or the wire loop (18) is reduced. A narrow waist bore (30) which centres against the wire (40) enables the cutting elements (25) to be threaded in a centred way on the wire (40). The spacing elements (41) are applied thinly on the wire (40) between the cutting elements (25). The elastomeric material functions to resiliently centre the cutting elements (25) by being pressed against the centre plane of the cutting elements (25) from both sides into recesses (32) provided in the end-walls of the cutting elements (25), these recesses (32) being flared at a wide angle of about 90 degrees.
Patent CA-2259499-A1 (CA)
Title: Process for separating alpha-1-proteinase inhibitor from cohn fraction iv1 +iv4 paste
Inventor: LEPE MARK
IPC: C07K14/81
Filed: 1997-06-27
Abstract: The present invention is directed to a process for purifying alpha-1-PI. The process comprises providing an impure protein fraction which comprises alpha-1-PI. The impure protein fraction is suspended in an aqueous solution at pH 6. Insoluble proteins are recovered and resuspended in aqueous solution at pH 8,5. PEG is added to precipitate .alpha.-2 proteins. To the PEG supernatant precipitation, which comprises alpha-1-PI, is added ZnCl2 to precipitate crude alpha-1-PI. The crude alpha-1-PI is resolubilized and apllied to an anion-exchange medium. A fraction comprising alpha-1-PI is recovered from the anion-exchange medium. Alpha-1-PI purified by the process has a specific activity about 1.0 units/OD280.
Patent CA-2260699-A1 (CA)
Title: Process for the preparation of 2-aryl-5-(perfluoroalkyl) pyrrole compounds from n-(perfluoroalkylmethyl) arylimidoyl chloride compounds
Inventor: KAMESWARAN VENKATARAMAN
IPC: C07D405/04
Filed: 1999-02-05
Abstract: There is provided a process for the preparation of 2-aryl-5-(perfluoroalkyl)pyrrole compounds from N-(per-fluoroalkylmethyl)arylimidoyl chloride compounds. The 2-aryl-5-(perfluoroalkyl)pyrrole compounds are useful for the control of insect and acarid pests, and may also be used to prepare other pesticidal arylpyrrole compounds.      In addition, the present invention provides N-(perfluoroalkylmethyl)arylimidoyl chloride compounds which are useful as intermediates in the preparation of arylpyrrole compounds.
Patent CA-2261239-A1 (CA)
Title: Handle structure for a chest pull
Inventor: CHIU CIBER
IPC: A63B21/055
Filed: 1999-02-08
Abstract: A handle structure for a chest pull includes a substantially ring-shaped handle having a tapered passage defined radially therethrough. A positioning device including a sphere member is sized to be movably retained in the tapered passage. A shank extends from the sphere member and is connected to a collar member which has an aperture defined therethrough. A positioning member has a head movably retained in the collar member and a tail extending transversely from a mediate point of the head. The tail is positioned corresponding to the collar member so as to position a resilient member between the head and the collar member.