baber/WOPTO huggingface dataset:
Patent CA-2171834-A1 (CA)
Inventor: DALL OCCO TIZIANO
IPC: C08F4/648
Filed: 1995-07-18
Abstract: On décrit des catalyseurs pour la polymérisation d'oléfines, comprenant le produit de réaction de (A) un composé cyclopentadiényle présentant des ponts et/ou des substituants, du titane, du zirconium ou de l'hafnium; (B) d'un composé organométallique de la formule (II) Al(CH¿2?-CR?4¿R?5¿R?6¿)¿w?R?7¿¿y?H¿z?, dans laquelle les groupes (CH¿2?-CR?4¿R?5¿R?6¿) peuvent être les mêmes ou différents, R?4¿ est un groupe alkyle, alcényle ou arylalkyle ayant de 1 à 10 atomes de carbone, R?5¿ est un groupe alkyle, alcényle, aryle, arylalkyle ou alkylaryle ayant de 3 à 50 atomes de carbones et différant d'un groupe alkyle ou alcényle droit ou éventuellement R?4¿ et R?5¿ peuvent être liés ensemble pour former un cycle ayant 4 à 6 atomes de carbone, R?6¿ est un hydrogène ou un groupe alkyle, alcényle ou arylalkyle ayant de 1 à 10 atomes de carbone, et les substituants R?7¿, qui peuvent être identiques ou différents, sont des radicaux alkyle, alcényle, aryle, arylalkyle ou alkylaryle renfermant de 1 à 10 atomes de carbone et, éventuellement, ils peuvent renfermer des atomes de Si ou Ge, w est égal à 1, 2 ou 3, z est égal à 0 ou 1, y = 3-w-z; et (C) d'eau. Le rapport molaire aluminium/eau est compris entre 1:1 et 100:1. Ces catalyseurs montrent une activité améliorée par rapport aux catalyseurs connus où on utilise un composé de l'aluminium différent de ceux de la formule ci-dessus.
Patent CA-2172047-A1 (CA)
Inventor: MORAN LARRY K
IPC: E21B43/11
Filed: 1993-10-07
Abstract: A wellbore completion system utilizes casing conveyed devices (50) to establish a fluid communication path between a downhole formation (F) and the casing string (60). Extendible pistons (12) are mounted in the wall of the casing pipe string (60) and are extended toward contact with the downhole formation (F) after the casing (60) is set. Explosives (58, 72, 74) in the pistons are activated by a separately conveyed activation system (84, 89, 91, 93) which produces a pressure wave to detonate the explosives (58, 72, 74) and establish fluid communication between the casing (60) and formation (F).
Patent CA-2173008-A1 (CA)
Title: Cryptographic Key Management and Validating System
Inventor: BAKER WALTER J
IPC: H04L9/10
Filed: 1996-03-29
Abstract: A Key Management System for generating, distributing and managing cryptographic keys used by an information transaction system that employs  cryptographic means  to produce evidence of information integrity.   The system comprises  a  plurality of  functionally  distinct  secure boxes operatively coupled to each other.   Each of the secure boxes performs functions for key generation,  key installation,  key verification or validation of tokens. Computers,  operatively  coupled  to  the  secure  boxes, provide system control and facilitate communication among the  secure  boxes.    A  plurality  of  separate  logical security  domains  provide  domain  processes  for  key generation,   key  installation,   key  verification  and validation  of  tokens  produced  by  the   transaction evidencing  device  within  the  domain  using  the  key management functions.   A plurality of domain archives, corresponding  respectively  to  each of  the  security domains, securely and reliably record key status records and master  keys  for each domain.   The Key Management System  installs  the  master  keys  in  the  transaction evidencing device and validates the tokens.   The secure boxes  include  a  key  generation  box  for  generating, encrypting and signing a master key; a key installation box for receiving,  verifying and decrypting the signed master key and for installing the master key into the transaction evidencing device; a key verification box for verifying  the  installation  of  the  master  key  in  the transaction evidencing device,  a token verification box for verifying the tokens, and at least one manufacturing box  for  generating  domain  keys  and  distributing  the domain  keys  among  the  secure  boxes  for  each  of  the domains.
Patent CA-2173984-A1 (CA)
Title: Method and apparatus for production of multi-flavored and multi-colored chewing-gum
Inventor: KEHOE GARY
IPC: A23G4/04
Filed: 1994-11-16
Abstract: A method and an apparatus for producing chewing gum comprising atleast one substantially homogeneous base portion having opposing cut ends comprising different veins of injected liquid additives which provide a swirled or marbleized pattern in the cut ends. The injected liquid additives may include flavors, dyes, lakes, high intensity sweeteners, therapeutic agents, breath freshening agents, and mixtures thereof. The injection may be performed while dbe gum composition is being conveyed in one or more extruder head barrels and at a plurality of radial and/or circumferential positions in the barrel. The substantially straight longitudinal veins of color are then partially mixed to partially displace the colored veins in a direction transverse to the direction of extrusion so as to create veined, multi-colored patterns substantially throughout a cross section of the product in a manner so that the multi-colored patterns in the cross-section differ along the length of the extrudate. Surface veins may also be produced by injection of liquid colorant/flavorant compositions onto the substantially homogeneous gum base composition as it passes through the extrusion head barrel. The surface veins may be disrupted or displaced independently of the interior veins by means of a rotatable sleeve or gum rope twisting device.
Patent CA-2175856-A1 (CA)
Title: A method for producing positive electrode material and lithium batteries incorporating this material
Inventor: ARAI HAJIME
IPC: C01G49/00
Filed: 1996-05-06
Abstract: A positive electrode material for use in lithium batteries contains a compound represented by the chemical formula LixFe2(SO4)3 (0<x ? 2). This positive electrode material is made from low cost material which is available in abundant quantities. Moreover a lithium battery using this material has a large discharge energy and long cycle life.
Patent CA-2177673-A1 (CA)
Inventor: LESCOURRET JEAN-LOUIS
IPC: F41G3/22
Filed: 1996-05-29
Abstract: L'invention concerne un procédé de détermination de la position et de l'orientation d'un système mobile. Le procédé comporte: - une première étape de modélisation analytique des champs électromagnétiques en fonction des coordonnées du capteur, un premier champ (Bo) étant créé par l'émetteur, un deuxième champ (B1) étant créé par les courants électriques induits dans le porteur par le premier champ (Bo) et un troisième champ (B2) étant créé par les courants électriques ou des aimantations induits dans le système mobile par les deux premiers champs (Bo + B1), l'effet électromagnétiqaue de chaque champ (Bo, B1, B2) étant caractérisé indépendamment des effets des autres champs par les coefficients de son propre modèle; - une deuxième étape de calcul, en temps réel, de la position et de l'orientation du capteur en utilisant la mesure courante du champ électromagnétique au niveau du capteur (2) et en utilisant les modèles (Bo, B1, B2) de la première étape, la position et l'orientation du capteur étant définie à partir du champ mesuré (Bm) auquel le troisième champ (B2) a été retranché. Application: Détermination de la position et de l'orientation de la ligne de visée dans un viseur de casque. Figure 3.
Patent CA-2179256-A1 (CA)
Inventor: DORGUIN JEAN-PIERRE
IPC: E02F3/96
Filed: 1996-06-17
Abstract: Un dispositif de cisaillement, notamment pour la coupe de métaux ou de béton est monté à l'extrémité d'un bras de travail (1) d'une machine de chantier. Le dispositif comporte d'une part, un ensemble (2) apte à être solidarisé audit bras de travail (1) et, d'autre part, un organe complémentaire (8) monté et guidé en rotation sur ledit ensemble. Le dispositif comporte des moyens de guidage en rotation coopérant avec un organe d'amortissement dans la position de fermeture correspondant au cisaillage et un moyen d'appui assurant un écartement latéral prédéterminé des extrémités de manoeuvre, de manière à empêcher un écartement latéral des extrémités (C) de cisaillage du dispositif.
Patent CA-2179336-A1 (CA)
Inventor: KUMAR DANNY
IPC: A61B17/24
Filed: 1996-06-18
Abstract: A device for removing build-up from the tongue is disclosed. A hard but flexible strip has a leading surface and a trailing surface that intersect to form a cleaning edge. Handles are attached to each end of the strip to discourage slippage during use. The user bends the strip into an inverted U-shape with the trailing surface on the interior of the inverted U. He then places the trailing surface transversely on the rearward portion of his tongue. By gently drawing the strip forward towards the tip of his tongue, the user causes the tongue papillae to be scraped against the cleaning edge and thereby causes build-up to be removed.
Patent CA-2181858-A1 (CA)
Inventor: WILLIAMSON RICHARD
IPC: E06C7/18
Filed: 1996-07-23
Abstract: This invention provides a method and apparatus for ensuring the saftey of a worker climbing an extension ladder. It has a safety cable which extends the full length of an extension ladder, regardless of the degree of extension of the ladder and the cable is fully retractible into a housing unit which both stores the cable such that the cable cannot be fouled, and provides a brake to prevent rapid movement of the cable such as might occur in the event of a fall of a worker. The invention makes it possible for a worker to climb and descend a ladder safely whether or not both hands are on the ladder and has particular application in the fire fighting field.
Patent CA-2184335-A1 (CA)
Inventor: PHELPS PETER M
IPC: F28C1/04
Filed: 1996-08-28
Abstract: A crossflow cooling tower assembly (30) including a fill assembly (33) having a gas inlet opening (34) and a gas outlet opening (35). The outlet opening (35) is defined by a lower outlet portion (37) having a principal dimension generally inclined at an angle of about 5° to 15° to the vertical, and an upper outlet portion (38) having a principal dimension generally inclined at an angle of about 20° to 45° to the vertical which substantially widens an upper opening (38) into the exhaust plenum chamber (36). The cooling tower assembly (30) further includes a vertical stack (40) forming an exhaust port (41) positioned vertically over the exhaust plenum chamber (36) for exhaust of the gas in the generally vertical direction. An inner wall (43) of the vertical stack (40) is of a diameter sufficient to extend the exhaust port (41) substantially vertically over both the lower outlet portion (37) and the upper outlet portion (38). An exhaust fan (45) is positioned in the exhaust port (41) and includes at least one fan blade (46) extending substantially to the inner wall (43). This configuration enables a smooth transition of the flow of gas from the generally horizontal direction, through the fill assembly (33), to the generally vertical direction, out of the exhaust port (41).
Patent CA-2184641-A1 (CA)
Inventor: LE GASSIE TOM
IPC: A01K91/06
Filed: 1996-09-03
Abstract: In a device for attracting fish heavy drag is created.    In this invention the drag is lessened and the attracting motion is increased as well as the induced bait or lure movement.
Patent CA-2184741-A1 (CA)
Inventor: MUELLER-ROEBER BERND
IPC: C12R1/91
Filed: 1995-03-07
Abstract: L'invention se rapporte à des procédés d'inhibition de la floraison  et à des procédés de déclenchement de la floraison des plantes, ainsi que des procédés d'amélioration de la capacité de stockage d'organes de plantes utiles, et à des procédés de la germination des tubercules dans des plantes tubérifères. L'invention se rapporte également à des séquences d'ADN qui modifient l'acitivité de la synthase du citrate de la plante lors de l'intégration dans un génome végétal, des plasmides qui contiennent ces séquences d'ADN, et des plantes transgéniques dans lesquelles les modifications de l'activité de la synthase du citrate sont apportées par introduction des séquences d'ADN. Les séquences d'ADN décrites sont des séquences issues de Solanum tuberosom, Nicotiana tabacum et Beta vulgaris qui codent pour la synthase du citrate. L'invention se rapporte également à des plants de pommes de terre transgéniques dans lesquels se produisent une inhibition de la floraison, une réduction des pertes de stockage des tubercules ainsi qu'une réduction de la germination des tubercules du fait d'une inhibition de l'activité de la synthase du citrate, et à des plants de pommes de terre transgéniques dans lesquels se produit un déclenchement prématuré de la floraison du fait de la surexpression d'une synthase de citrate.
Patent CA-2187074-A1 (CA)
Inventor: VON BECKMANN JOERG
IPC: B01J20/34
Filed: 1996-10-03
Abstract: A  carbon reactivation apparatus has a fossil fuel kiln adjacent to a rotary dryer and flue gas from the kiln flows through the dryer co-currently with carbon particles to provide a more efficient process than previously known.  The apparatus has a rotary kiln with a drum therein sloped downwards from a feed end to a discharge end, a furnace shell surrounding at least a portion of the drum with a fossil fuel heater and hot gases from within the shell heat the rotary kiln.  A rotary dryer slopes downwards from an inlet end to an outlet end and carbon particles to be reactivated are fed into the inlet end.  Ducting from the shell surrounding the drum of the rotary kiln extends to the inlet end of the rotary dryer for hot gases to flow along the dryer to the outlet end in the same direction as the carbon particles.  Carbon particles are discharged from the outlet end of the rotary dryer into the feed end of the rotary kiln, the carbon particles being separated from the hot gases in the rotary dryer, and there is an exhaust system to exhaust the hot gases from the outlet end of the dryer.
Patent CA-2187844-A1 (CA)
Inventor: GETMAN IGOR
IPC: G01F23/296
Filed: 1996-10-15
Abstract: For monitoring a predetermined level of a liquid in a container an ultrasonic transducer is fitted on the outer surface of the container wall at a measurement point situated at the height of the  level  to  be monitored.  The  ultrasonic  transducer  when excited  by  an  alternating  voltage  pulse  having  a  given transmission  frequency  which  equals  the  thickness  resonant frequency  of  the  container  wall,  transfers  an  ultrasonic transmission pulse to the container wall and converts ultra-sonic vibrations,  generated by reflected echo pulses,  into electrical  reception  signals  that  are  transferred  to  an evaluation circuit. In the evaluation circuit, on the one hand the presence or absence of echo signals is detected, and, on the other, the ultrasonic vibrations generated by the after-vibration of the container wall at the end of the transmission pulse are evaluated. As a result of this it can be determined with high error detection reliability whether the measurement point is covered by the liquid or not and whether the measure-ment arrangement is working satisfactorily.
Patent CA-2189852-A1 (CA)
Title: Dual Voltage Voltage Regulator with Foldback Current Limiting
Inventor: MUTERSPAUGH MAX WARD
IPC: G05F1/573
Filed: 1994-09-13
Abstract: A voltage regulator is switchable between a lower regulated DC output voltage and a higher regulated DC output voltage. Foldback current limiting is actuated in response to the current drawn by the load when a current limiting threshold is exceeded. The current limiting threshold is determined by the voltage relationship at respective taps of a pair of voltage dividers, with said relationship being effected by the voltage appearing across a current sensing resistor coupled in series with the load. The current limiting threshold is adjusted to be approximately the same for both the lower and the higher regulated DC output voltages. This adjustment is accomplished with a non-linear voltage dependent device, which is coupled to one of the voltage dividers, and is actuated in the higher output voltage mode.
Patent CA-2191249-A1 (CA)
Title: Humidity-setting polyurethane hot-melt-type glue
Inventor: KREBS MICHAEL
IPC: C08G18/40
Filed: 1995-05-17
Abstract: A moisture-curing polyurethane hotmelt adhesive The hotmelt adhesive according to the invention contains A) at least one polyurethane prepolymer of a) at least one polyisocyanate, more particularly toluene diisocyanate and/or MDI, b) at least one polyalkylene glycol in a concentration of more than 10% by weight, based on the hotmelt adhesive as a whole, more particularly polypropylene glycol, c) at least one polyester glycol, preferably at least two polyester glycols with different glass transition temperatures and d) at least one chain extender and B) optionally additives, such as e) a resin, more particularly a hydrocarbon resin, and f) a stabilizer, more particularly toluene sulfonyl isocyanate. The hotmelt adhesive preferably has a melt viscosity of 4 to 100 Pa the DSC curve. The hotmelt adhesive is distinguished by high creep resistance and high early and ultimate strengths. Accordingly, it is mainly used in the shoe industry, more particular, in application machines designed for application in the shoe production line which does not contain any steam-operated preliminary crosslinking stage or a drying tunnel. The hotmelt adhesive is preferably produced by a single-stage process. The adhesive is particularly suitable for fibrous materials, such as leather and textiles.
Patent CA-2191448-A1 (CA)
Title: Method and apparatus for treating fly ash
Inventor: SMITH GREGORY ALLAN
IPC: B03C7/10
Filed: 1995-05-31
Abstract: A method and apparatus for separation of carbonaceous particles from fly ash utilises an electrostatic separator having a plurality of separation zones (11) arranged to define a downward serpentine pathway for particulate material, the separation zones (11) comprising spaced parallel planar electrodes (8, 8a, 9, 9a) with collectors (13) positioned at the outlet of each separation zone to direct the respective carbonaceous and non-carbonaceous particles to respective storage hoppers. The feedstock is introduced to the apparatus via a rotary valve at a temperature of about 100 .degree.C and the potential difference between respective pairs of electrodes is about 30KV.
Patent CA-2192425-A1 (CA)
Title: Large effective area single mode optical waveguide
Inventor: LIU YANMING
IPC: G02B6/036
Filed: 1996-12-09
Abstract: Disclosed is a single mode optical waveguide fiber which limits nonlinear effects at both the 1300 nm window and the 1550 nm window of operations. Examples of core region refractive index profiles which yield the required properties are a modified step index profile and profiles which have a maximum .DELTA. % which is spaced apart from the centerline of the waveguide fiber.
Patent CA-2194135-A1 (CA)
Title: Recombinant mono and poly antigens to detect cytomegalovirus-specific igm in human sera by enzyme immunoassay
Inventor: MAINE GREGORY T
IPC: G01N33/53
Filed: 1995-05-15
Abstract: A mixture of recombinant mono- and poly-epitope proteic materials able to fully replace the viral antigens when used in an enzyme immunoassay (EIA) is disclosed; the mixture includes a poly-epitope fusion protein having a first region formed by an amino acid sequence (H10) corresponding to that of the last 233 amino acids of the COOH terminus of the vital protein p52 or to a part thereof, a second region formed by an amino acid sequence (F3) corresponding to that of the last 43 amino acids of the COOH terminus of viral protein pp150 or to a part thereof, and a third region formed by an amino acid sequence (AlC2) corresponding to that taken from as 595 to aa 614, proceeding in direction 5'.fwdarw.3', of the same viral protein pp150;  and, in combination, a second fusion protein including a sequence of amino acids corresponding to that taken, proceeding in direction 5'.fwdarw.3' from as 297 to aa 510 of the viral major matrix protein pp65 encoded by the viral gene UL83 and a third fusion protein including a sequence of amino acids corresponding to that taken, proceeding in direction 5'.fwdarw.3', from as 117 to as 373 of the vital assembly protein pp38 encoded by the viral gene UL80a. These three fusion proteins may be used combined together for the preparation of an ELISA test kit for detection of Cytomegalovirus-specific Igm in human sera.
Patent CA-2194641-A1 (CA)
Title: In-ear type earphone having an ear hanger
Inventor: YANG BILL
IPC: H04R1/10
Filed: 1997-01-08
Abstract: An in-ear type earphone has a comfortable and secure attachment ear hanger is disclosed. The earphone has an in-ear type speaker element or a pair of the ones. A cable is coupled at one end to the speaker element for transmitting sound signals from a remote sound source device such as walkman. A plug coupled to the other end of the cable is used for insertion to a corresponding socket in the walkman. A sliding round shaft is pivotally mounted to the speaker element at its one end, and the other end thereof is received in a sliding sleeve allowing for sliding movement along the longitudinal axis. The hanger includes an integrally formed helix stopper end, a curved hook section and a lobule stopper end. The helix stopper end is mounted to the sliding sleeve in a fixed manner at one end of the hanger, the curved hook section is contoured to conform to the interface contouring behind the helix of the human external ear, and the lobule stopper end extends at the other end of the hanger for shoring into the concavity portion between the mastoid bone and the lobule.
Patent CA-2195855-A1 (CA)
Title: Acetabular prosthesis
Inventor: NOILES DOUGLAS G
IPC: A61F2/30
Filed: 1995-07-24
Abstract: An acetabular cup (11) for use with a plastic socket bearing is provided. The cup includes a circular aperture (19) having a stepped configuration. A domed disc (13) is inserted in the aperture (19) and deformed to seal the aperture (19).  In this way, plastic particles, which are generated by wear of the beating dying use, are prevented from migrating through the aperture (19) to the bone surrounding and supporting the prosthesis.
Patent CA-2196370-A1 (CA)
Title: Isoprene derivatives
Inventor: INOMATA KOHEI
IPC: C07C211/29
Filed: 1997-01-30
Abstract: Isoprene derivatives of formula (I) (see fig. I) wherein m is an integer of 0 to 3, n is an integer of 5 to 12, A is cyclo(C3-C6)alkylene, phenylene, fluorenylene, pyrrolidinylene, piperazinylene, 9-aza-3-oxabicyclo[3.3.1]-nonylene, R1 and R2 are each independently benzyl, of which a phenyl ring may be substituted by 1 to 5 substituents selected from the group consisting of hydroxy, (C1-C4)alkyl, (C1-C4)alkoxy and halogen, X is a single bond or a divalent radical of -(CH2)pNH-, p is an integer of 0 to 3, or a pharmaceutically acceptable salt thereof.         Those compounds are useful as multidrug resistance inhibitors for overcoming multidrug resistance of cancer and agents for enhancing an activity of anti-cancer agents.