baber/WOPTO huggingface dataset:
Patent CA-2123441-C (CA)
Title: Method and apparatus for an automatic decomposition of a network topology into a backbone and subareas
Inventor: GALAND CLAUDE
IPC: H04L12/56
Filed: 1994-05-12
Granted: 1999-02-16
Abstract: The object of the invention is to perform an automatic decomposition of a packet switching network in backbone nodes and subareas nodes to speed up the routing path search without degrading the optimization criterion of the routing algorithm and without generating additional control messages on the network. Currently, routing algorithms compute all the available paths in the network, from the source node to the destination node before to select an optimal route. However, networks are rarely fully meshed. They are usually built around a hierarchical structure: a set of nodes, interconnected by high throughput lines,are used to build a backbone with a high degree of meshing and then, local nodes are grouped in geographical subareas themselves attached to the backbone. Routing algorithms can take advantage of this particular network topology to drastically reduce the complexity of paths computation. For a given connection, only a limited number of nodes are defined as usable and are taken in account by the algorithm in its path calculation.
Patent CA-2124046-C (CA)
Inventor: KAZECKI HENRY LUDWIG
IPC: G06F17/15
Filed: 1994-05-20
Granted: 1999-09-28
Abstract: A complex signal correlator (106) and method therefor for correlating, at the multiple points in time, complex sampled (111) and reference (112) signals to produce a complex correlation signal (113). A relationship between the location of the reference signal (112) relative to the real and imaginary axes (301 and 302) is determined. The sampled signal (111) is processed responsive to the determined location) relative to the axes (301 and 302), of the reference signal (112) to produce real and imaginary processed components (210 and 211). The complex correlation signal (113) is produced responsive to adding (202-205) combinations of the real and imaginary processed components (210 and 211). Substituting adders (202-205) in the present invention for multipliers in the prior art complex signal correlators along with processing the sampled signal (111) significantly reduces the complexity of the complex signal correlator (106).
Patent CA-2124845-C (CA)
Title: Paper having a melt-stable lactide polymer coating and process for manufacture thereof
Inventor: GRUBER PATRICK R
IPC: D04H1/42
Filed: 1993-09-30
Granted: 2005-07-26
Abstract: A lactide polymer coating resulting in a strong, repulpable, high gloss, paper coating. The lactide polymer comprises a plurality of poly(lactide) polymer chains, residual lactide in concentration of less than about 5% and water in concentration of less than about 2000 parts-per-million. A process for coating paper with the lactide polymer composition is also disclosed.
Patent CA-2125357-C (CA)
Inventor: ROBERTS DAVID JAMES
IPC: B21H3/02
Filed: 1994-06-07
Granted: 1999-01-12
Abstract: A self-drilling screw is provided which is suitable for use with both  thick  section metal  plate  and  thin section metal sheet.  The screw is formed from a blank 1 which includes a shank 2 extending between a head 3 and drilling  top 4.   The shank 2,  adjacent the head 3,  is formed with a frusto-conical enlargement 8.  A thread 10, when formed in shank 2 is extended into enlargement 8 to create a final part 11 of the thread which, in use of the screw with sheet metal 12, distorts the sheet metal such that it firmly locks onto the enlargement 8.  A shallow recess  6  is  provided  in  the  underside  of  head  3 surrounding the frusto-conical enlargement 8.
Patent CA-2132258-C (CA)
Inventor: CHANAL CYRILLE
IPC: B65D55/02
Filed: 1994-09-16
Granted: 1999-03-16
Abstract: L'élément de fermeture (2), pour un pot (1) muni d'un col (3) afin d'emprisonner de manière inviolable un produit, en particulier un produit cosmétique, dans ce pot, est réalisé par bi-injection de matière plastique et comprend une bague d'accrochage (5) fixée sur le col (3) du pot de manière pratiquement indémontable, cette bague d'accrochage étant réalisée en une première matière plastique, et un disque (8), formant couvercle, réalisé en une deuxième matière plastique et lié à la bague d'accrochage. Le disque (8) est muni d'un moyen de traction (12), l'ouverture du pot nécessitant de séparer le disque (8) de la bague d'accrochage (5). La bague (5) et le disque (8) sont réalisés en deux matières différentes, choisies de manière à être incompatibles pour qu'il ne s'établisse pas de liaison par thermofusion entre elles, et la bague (5) est surmoulée sur le bord (10) du disque (8), lequel bord (10) se trouve enserré dans une gorge annulaire (13) de ladite bague.
Patent CA-2135249-C (CA)
Inventor: FISCHER CRAIG M
IPC: B60R21/26
Filed: 1994-11-07
Granted: 1996-12-03
Abstract: An air bag inflator (10) is actuatable to supply inflation fluid under pressure, through discharge openings (40), into a diffuser chamber (90) and thence through gas outlets (92) into an air bag.  An isolation membrane (100) extends across the diffuser chamber (90) between the discharge openings (40) and the gas outlets (92).  The isolation membrane (100) is welded to the housing at axially and radially spaced locations (106, 128).  When the inflator (10) is not actuated, the isolation membrane (100) blocks fluid flow including the conduction of moisture from the environment around the inflator through the discharge openings (40) and into the interior of the inflator.  The isolation membrane (100) has a weakened portion defined by a stress riser (130).  When the inflator (10) is actuated, the pressure of the fluid flowing through the discharge openings (40) breaks the isolation membrane (100) at the stress riser (130).  The isolation membrane (100) moves to a second location in the diffuser chamber (90) clear of the gas outlets (92) to enable fluid flow out of the diffuser chamber and into the air bag.
Patent CA-2137100-C (CA)
Inventor: KNIGHT LARRY FELIX
IPC: F04B49/00
Filed: 1994-12-01
Granted: 1998-09-22
Abstract: A pumper system is adapted to enable pumps to be switched between parallel operation, for the high flow conditions normally desired for in-situ pigging operations within a line to be cleaned, and series operation, for the high pressure conditions needed in the event the pigging device becomes obstructed in the line.
Patent CA-2137742-C (CA)
Title: Methode et dispositif pour memoriser des donnees transactionnelles
Inventor: GILLARD PATRICK
IPC: G06F17/40
Filed: 1994-12-09
Granted: 2008-04-15
Abstract: Les données transactionnelles sont acquises, élaborées et - mémorisées par un dispositif de traitement disposé à proximité immédiate d'instruments de mesure, qui comporte un processeur de pilotage, et un module de mémorisation. Les données sont stockées sur des supports non volatils et redondants et sous le contrôle d'un élément de contrôle (éventuellement inclus dans le processeur de pilotage). Des requêtes à exécuter lui sont transmises par le processeur de pilotage par l'intermédiaire d'une voie de transmission, et d'une mémoire-tampon. Les données concernées par ces requêtes sont écrites et lues sur les supports de mémorisation via une mémoire sauvegardée. Des contrôles permanents sont effectués pour vérifier la qualité et la fidélité de tous les transferts internes et aussi sauvegarder les données en cas d'anomalie de l'alimentation électrique. Les données sécurisées en mémoire peuvent être lues sur requête extérieure. Application à la mémorisation de valeurs mesurées notamment par des appareils de mesure agréés de volumes de liquides ou solides.
Patent CA-2141421-C (CA)
Inventor: SMITH JON D
IPC: F16B13/06
Filed: 1993-08-09
Granted: 1998-12-29
Abstract: A number of improvements to anchoring retainers (20) are disclosed. The improvements ensure that the retainers (20) are securely attached to walls, and that they do not move during attachment after being attached by a threaded fastener (38).
Patent CA-2145435-C (CA)
Title: Internal combustion engine low temperature starting system
Inventor: GRAY CLINT D
IPC: F02N19/06
Filed: 1995-03-24
Granted: 2006-03-14
Abstract: A compression ignited, spark ignited, or surface ignited engine single or multi-cylinder low temperature starting system is positioned permanently or temporarily in the intake system during the engine starting and warming-up period for an extremely cold temperature engine condition.      The low temperature starting system for these engine types is capable of starting on a wide variety of liquid fuels, E.G., high or low fuel volatility, high or low fuel boiling range and gaseous fuels. A pre-heat device which is fuel fired, electrically heated, chemically heated, heated by thermal storage or other means is used to pre-heat the air or air-fuel mixture. In any one of four different configurational modes, after an initial pre-heat period, air or an air-fuel mixture is drawn through a heat exchanger with an inlet restriction that acts to increase the air residency time in the heat exchanger which increases the temperature of the inducted air that in-turn reduces the opportunity for cold air to reach the combustion chamber and yields a rich air-fuel mixture in the combustion chamber. The heated rich air-fuel mixture in the combustion chamber is further heated by compression during the compression stroke to permit combustion to occur in a sustained manner prior to and after start-up. This invention allows engine startup at extremely low ambient temperatures. Cold cranking time and energy are substantially reduced due to the rapid build-up of heat in the combustion chamber.
Patent CA-2146719-C (CA)
Title: Mechanism for rotating a tree-felling implement and tree-felling implement therewith
Inventor: TAILLON MICHEL
IPC: A01G23/08
Filed: 1995-04-10
Granted: 1999-12-21
Abstract: The mechanism is used for rotating a tree-felling implement rotatably mounted with a pivot to the distal end of the boom of a logging vehicle. The mechanism, the tree-felling implement, the boom and the logging vehicle form a tree-felling machine controlled by an operator and used on logging sites. The mechanism comprises a pinion coaxial with the implement pivot and fixed in rotation with reference to the distal end of the boom. An arc-shaped rack is rotatably mounted on the frame of the implement by a rack pivot in spaced relationship with the pinion. The rack is in mesh with the pinion and hydraulic actuators are provided on the frame of the implement for swaying the rack and thereby rotating the implement with reference to the boom. Such mechanism is capable of rotating the tree-felling implement with reference to the boom plane in both directions and according to a much wider range angle than the prior art mechanisms.
Patent CA-2147499-C (CA)
Title: Prostate-specific membrane antigen
Inventor: ISRAELI RON S
IPC: A61K47/48
Filed: 1993-11-05
Granted: 2010-10-19
Abstract: This invention provides for an isolated mammalian nucleic acid molecule encoding a mammalian prostate-specific membrane antigen. This invention provides for nucleic acid probes which specifically hybridize with the nucleic acid molecule encoding said antigen. This invention provides for a method of detecting hematogenous micrometastic tumor cells of a subject performing the polymerase chain reaction (PCR) on samples of the subjet using primers of said antigen. This invention provides for methods to identify ligands which bind to said antigen. This invention provides for the prevention and/or treatment of prostate tumor growth.
Patent CA-2154532-C (CA)
Inventor: NEWTON JEFFREY P
IPC: C09K17/10
Filed: 1995-07-24
Granted: 2004-06-29
Abstract: A method of remediating soil contaminated with inorganic and organic pollutants as disclosed. A method comprises treating the soil with a complexing agent capable of chelating the pollutants and a matrix-generating agent for authigenically generating within the soil an alumino-silicate colloid matrix. The matrix has a plurality of reactive sites, which are capable of physically and chemically altering the pollutants into innocuous forms. The matrix-generating material comprises a mixture of a cement, blast furnace slag, fly ash, organophilic clay, and a free radical generator.
Patent CA-2154870-C (CA)
Inventor: COLLARD JEAN-NOEL
IPC: C07F7/12
Filed: 1994-01-25
Granted: 1998-10-27
Abstract: Composés aromatiques silylés fluorés, possédant une activité d'anticholinestérase, et méthodes pour traiter la démence dégénérative grâce à ces composés.
Patent CA-2161996-C (CA)
Title: Internal pipe cutter
Inventor: OBST NORMAN
IPC: B26D1/60
Filed: 1995-11-03
Granted: 2001-01-16
Abstract: A device for cutting pipe internally includes an annular cutter head having a plurality of circumferentially spaced openings therethrough, a stepped drive shaft extending from the cutter head and having a longitudinal bore therethrough and an adapter at the distal end of the drive shaft for connection to a rotary drive member.  A frustoconical mandrel has a threaded rod extending from one end thereof through the shaft bore to the distal end of the shaft where it threadably engages a nut held stationary with respect to the drive shaft. The mandrel  has  a  plurality  of  inverted  T-shaped  slots extending along the frustoconical side thereof,  each slot receiving the T-shaped projection on a cutter body.   Each cutter body has a rotatable cutter wheel mounted thereon, the wheel being adapted to project through a corresponding opening in the cutter head.  With the components assembled together, rotation of the drive shaft by the rotary drive member will cause rotation of the mandrel and the threaded rod.   The relative movement between the threaded rod and the nut causes the rod to move through the nut so as to draw the mandrel into the cutter head.  Due to the sloping nature of the mandrel wall and the interengagement between the T-shaped slots and projections the cutter bodies and the cutter wheels will be moved progressively radially outwards of the cutter head during rotation of the drive shaft so that the cutter wheels can cut into the internal wall of the pipe at a controlled progressive rate.
Patent CA-2162313-C (CA)
Title: Methods for controlling scale formation in aqueous systems
Inventor: PEREZ LIBARDO A
IPC: C02F5/08
Filed: 1995-11-07
Granted: 2008-08-05
Abstract: A method of controlling scale formation and deposition and corro-sion in aqueous systems is described wherein a treatment solution of a substoichiometric amount of a scale/corrosion inhibitor in combination with a substituted alkylpolycarboxylate is employed. The scale/corrosion inhibitor can be a phosphonate such as hydroxyethylidene diphosphonic acid, 2-phosphonobutane-1,2,4-tricarboxylic acid, hydroxyphosphono-acetic acids, amino phosphonates; terpolymers, copolymers and homo-polymers of acrylic acid, maleic acid, epoxysuccinic acids such as poly-epoxysuccinic acid or mixtures thereof. The substituted alkylpolycarboxy-lates are compounds of the general structure: R-X-Y n wherein R is a hydrocarbon functionality having 4 to 18 carbons; X, when present, is --NH-, -NY1-, -N->O, -N-OC-Y1, -O- or -S-; n is greater than or equal to 1; and Y and Y1 each independently represent a substituted or non--substituted carboxylic acid functionality such that said alkylpolycarboxyl-ate has at least 2 carboxylic acid functional groups.
Patent CA-2167857-C (CA)
Inventor: SMITH SIDNEY K JR
IPC: E21B43/10
Filed: 1996-01-23
Granted: 2006-03-28
Abstract: A running tool particularly useful for running liners on coiled tubing is disclosed. A torque-transmitting outer sleeve is employed which initially traps the collets. The collets are engaged to the liner by relative mechanical movement and thereafter lock in a secured position to the liner, regardless of whether the liner is placed in tension or compression by the running tool. Release is accomplished by letting down weight on the running tool, coupled with hydraulic pressure to shear a pin securing the collet mechanism. Upon such a hydraulic release with the pin sheared, the outer torque sleeve shifts downwardly to prevent relatching.  Torque is transmitted through the outer torque sleeved and not through the latching collets.
Patent CA-2168114-C (CA)
Inventor: RAMBACH ALAIN
IPC: C12R1/72
Filed: 1994-07-28
Granted: 2004-12-14
Abstract: A method for revealing the presence or absence of a particular microorganism strain in a culture medium, wherein at least two strain enzyme substrate chromogens are added to the culture medium, said chromogens being selected so that the presence of said strain in the culture medium is revealed by a third colour.
Patent CA-2169916-C (CA)
Title: Cnc control system
Inventor: WRIGHT MICHAEL R
IPC: G05B19/414
Filed: 1994-09-07
Granted: 1998-10-27
Abstract: A machine tool control system that includes a controllable, movable tool for shaping a workpiece, a mechanism for receiving control instructions describing shaping functions to be performed on the workpiece, a processing unit and memory.  The control systems includes objects defined according to an object oriented design. one type of object is a model of a shaping process to be performed on a workpiece, including informational parameters regarding the physical dimensions of the shape resulting from the process.  The process objects communicates through an object oriented messaging system to machine objects, which represent physical devices present on the CNC machine on which the control system operates.  The system also includes object oriented motion control and exception handler objects, each of which may communication with other object via object oriented messages.  The control system permits easy modifications to the control system by persons with limited knowledge about the entire control system, and is readily adaptable to advances in new CNC machine tools.
Patent CA-2174342-C (CA)
Inventor: SIH GILBERT C
IPC: H03H21/00
Filed: 1994-10-27
Granted: 1999-12-14
Abstract: An apparatus that automatically adjusts the adaptation block size for a least-mean square (LMS) adaptive filter depending on the input signal-to-noise ratio (SNR) is disclosed. The apparatus monitors the instantaneous SNR (22) and continually adjusts the block size (20,26) to provide high noise immunity, thereby increasing the convergence speed of the filter and decreasing the asymptomatic mean-square error. An exemplary embodiment of the present invention is presented in the context of acoustic echo cancellation though it is noted that the adaptive filter of the present invention is useful in any environment in which the noise characteristics are subject to change.
Patent CA-2178471-C (CA)
Title: Production of almost colorless solutions of n-methylmorpholine oxide
Inventor: MASSONNE KLEMENS
IPC: C07D295/023
Filed: 1996-06-06
Granted: 2000-04-18
Abstract: Aqueous solutions of N-methylmorpholine N-oxide having color numbers below 200 APHA, based on an N-methylmorpholine N-oxide content of 50% by weight, are produced by reacting aqueous hydrogen peroxide solutions with aqueous solutions of N-methylmorpholine having a water content of at least 35% by weight.
Patent CA-2180250-C (CA)
Title: Cylinder lock and key combination including a profiled key
Inventor: WIDEN BO
IPC: E05B27/10
Filed: 1994-12-21
Granted: 2004-06-01
Abstract: A cylinder lock and key combination, where the key (20) has an undercut profile groove (24) at one side surface (22) thereof and, in the key slot (13), the lock key plug has a corresponding profile tongue (15) with a downwardly projecting end portion (15a), which points away from the rotational axis of the key plug and fills up the undercut portion (29) of the key profile groove (24) upon insertion of the key into the lock.
Patent CA-2180522-C (CA)
Inventor: CIMBURA JOHN ALAN SR
IPC: E21B33/08
Filed: 1996-07-04
Granted: 2006-03-14
Abstract: A seal system for an oil well head, wherein the shaft rotates about its axis to drive a progressive cavity type pump. Primary and secondary polytetrafluoroethylene seals surround a sleeve that encircles the shaft. Pressure detectors connect to the space between the seals to detect leaks past the primary seat and signal a remote repair facility. The secondary seal assumes the sealing function while repairs are scheduled.
Patent CA-2181189-C (CA)
Inventor: WILDING PETER
IPC: C12Q1/68
Filed: 1995-11-13
Granted: 1999-09-21
Abstract: La présente invention concerne des dispositifs pour amplifier un polynucléotide présélectionné dans un échantillon par réalisation d'une réaction d'amplification de ce polynucléotide. Ces dispositifs sont pourvus d'un substrat microfrabriqué pour renfermer une chambre de réaction d'amplification de polynucléotide, présentant au moins une section de l'ordre de 0,1 à 1000 µm. Le dispositif comporte également au moins un orifice en communication fluidique avec la chambre de réaction, pour introduire un échantillon dans cette dernière, pour mettre à l'air libre la chambre s'il y a lieu, et éventuellement, pour éliminer du dispositif des produits ou des déchets. La chambre de réaction peut être dotée de réactifs nécessaires à l'amplification d'un polynucléotide présélectionné. Le dispositif peut également comprendre des organes permettant la régulation thermique du contenu de la chambre de réaction, pour amplifier un polynucléotide présélectionné. De préférence, la chambre de réaction est réalisée avec un rapport surface/volume élevé, en vue de faciliter la régulation thermique. La chambre de réaction d'amplification peut également contenir une composition réduisant l'inhibition de la réaction d'amplification grâce au matériau constitutif d'une paroi de la chambre de réaction, lorsqu'un tel traitement est nécessaire.
Patent CA-2186799-C (CA)
Inventor: HOLZMANN GERARD JOHAN
IPC: G06T11/00
Filed: 1996-09-30
Granted: 2000-03-21
Abstract: Apparatus and methods for editing message sequence charts and determining whether a message sequence chart is consistent with a semantic of the system which the message sequence chart represents. As an editor, the apparatus maintains an internal representation of the message sequence chart as a set of processes and events, displays an image of the message sequence chart, and modifies the internal representation in response to modifications of the image by the user. The internal representation can be used to produce further representations of the message sequence chart. One of the representations is an event list which lists send events and receive events in the message sequence chart in a visual order. The event list is used together with a semantic provided by the user of the apparatus to determine whether there is an inconsistency between the message sequence chart and the semantic.
Patent CA-2194197-C (CA)
Title: Instrument for measuring saliva viscoelasticity to determine female fertile period
Inventor: KOSASKY HAROLD J
IPC: A61B10/00
Filed: 1996-12-31
Granted: 2007-09-25
Abstract: A device for determining the timing of female ovulation by measuring the viscoelasticity of saliva, the device comprising an elongated sheath with an opening at one end, a reciprocable escapement with a pair of arms having inner extremities within the sheath and outer extremities in the vicinity of the opening, the outer extremities having mating surfaces, the escapement including a spring bias urging the mating surfaces apart, the arms being mounted for relative movement of the mating surfaces among a first position at which the mating surfaces are separated, second position at which the mating surfaces are in contact, and third position at which the mating surfaces are free to separate under the spring bias, a control for moving the mating surfaces between the first, second, and third positions, at least one of the mating surfaces being free to collect the saliva when in the first position, the mating surfaces compressing the saliva therebetween when in the second position, and a timer for measuring the time elapsed for separation of the surfaces when in the third position.