baber/WOPTO huggingface dataset:
Patent CA-2128411-C (CA)
Title: Apparatus and method for biometric identification
Inventor: FAULKNER KEITH WILLIAM
IPC: G06V10/145
Filed: 1993-02-09
Granted: 2004-04-13
Abstract: Biometric measuring apparatus for recognizing a person's identity based on measurements performed on the person's hand. An arrangement for producing (11) and storing (13) a silhouette image of at least a portion of a person's hand is combined with an arrangement for producing (11) and storing (21A) a displacement image of the same portion of a person's hand which can be correlated (30) with said stored silhouette image to provide measurement data on finger height characteristics. An analyz-ing device analyzes said stored silhouette image and said stored displacement image to produce hand feature data, including hand feature data derived at least in part from finger height characteristics.  A comparing device (60) compares hand bid data with hand enrollment data to decide on the basis of prearranged decision criteria whether said hand bid data and said hand en-rollment data were produced by the same hand portion.
Patent CA-2135233-C (CA)
Inventor: TAYLOR THOMAS A
IPC: C23C4/06
Filed: 1994-11-07
Granted: 1998-07-14
Abstract: A coating composition comprising an alloy having the formula RCrAlR'R" wherein R is nickel, cobalt or the like; R' is yttrium or hafnium and R" is tantalum, rhenium and/or platinum, preferably mixed with an oxide dispersion such as alumina, to provide an improved class of coatings suitable for operating in high temperature oxidizing environments.
Patent CA-2152873-C (CA)
Title: Process for producing diacetyl free methyl methacrylate
Inventor: CROIZY JEAN-FRANCOIS
IPC: C07C67/20
Filed: 1995-06-28
Granted: 1998-10-27
Abstract: Prepn. of monomeric methyl methacrylate involves (a) reacting acetone cyanohydrin with H2SO4 or an oleum, to form methacrylamide, (b) reacting the methacrylamide, directly or after isolation, with methanol in presence of water, (c) sepg. the methyl methacrylate by distn. from the mixt. of H2SO4, (NH4)2SO4 and water, (d) eliminating unreacted methanol by liq.-liq. extn., and (e) distilling the washed methyl methacrylate in 2 stages: (e1) to eliminate residual traces of water, methanol and low-boiling impurities, and (e2) to separate pure methyl methacrylate (MMA) from high-boiling impurities. The novelty is that stage (e) is in presence of a non-aromatic 1,2-diamine which can react, under acid catalysis, with diacetyl present as impurity in the MMA to reduce its content; the diamine is added at a point such that the duration of contact with the MMA is sufficient to give considerable reaction with the diacetyl.
Patent CA-2152905-C (CA)
Title: Evaluation of heart mechanical performance
Inventor: MCINTYRE KEVIN M
IPC: A61B5/22
Filed: 1993-12-23
Granted: 2005-06-14
Abstract: The invention evaluates the mechanical condition of a heart in a patient (10) by noninvasively providing a pulse signal representative of arterial pulsation by placing a transducer (11) sufficiently close to the skin of the patient (10) to provide an electric signal representative of the arterial pulsation. The patient (10) is subjected to a heart-straining maneuver to provide an arterial pulse contour squarewave signal during the heart-straining maneuver having an early strain phase amplitude at the beginning of the heart-straining maneuver and a later strain amplitude at the end of the heart-straining maneuver. An indication is provided of the ratio of the late strain phase amplitude which ratio is representative of the mechanical condition of the heart of the patient (10).  The invention may also provide an indication of the relationship between that ratio and the pulmonary capillary wedge pressure of the patient (10). The invention may also provide an indication of the state of the hydration of the patient (10).
Patent CA-2157386-C (CA)
Inventor: BELLIO STEPHEN L
IPC: A41H43/02
Filed: 1994-03-02
Granted: 1999-07-06
Abstract: Un procédé et un appareil permettant de prélever sans l'endommager une pièce, de forme prédéterminée, découpée dans une feuille de matériau flasque et de la transporter vers une zone de préparation pour la travailler. Le prélèvement et le transport de la pièce se font sans déformer le segment découpé. Un appareil (10) comprend un plan de découpe (12), un portique d'avance et de découpe (14), un portique de préhension (16) et un ensemble d'alimentation en matériau en feuille (18), le tout commandé par un dispositif de commande (20). Le portique de préhension (16) comporte un mécanisme de préhension (16A) qui permet d'ôter un segment de couverture situé sur la feuille de matériau à travailler. En outre le portique de préhension comporte un mécanisme (16B) de préhension de pièces à travailler qui permet de prélever une pièce sur la feuille de matériau.
Patent CA-2179169-C (CA)
Title: Synthetic ester lubricant stabilizer composition
Inventor: LAI JOHN TA-YUAN
IPC: H04B7/185
Filed: 1994-12-15
Granted: 2005-07-26
Abstract: An antioxidant stabilizer composition is disclosed that is the reaction prod uct of a diphenylamine and an N-aryl naphthylamine in the presence of an organic peroxide. The mole ratio of diphenylamine: N-ary l naphthylamine is from 1:1 to 10:1. This results in mo re oligomeric reaction products and significantly less unreacted monomeric resi dual reactants. The resultant product composition compr ises diphenylamine homooligomers and diphenylamine/N-aryl naphthylamine cross oli gomers. The diphenylamine and N-aryl naphthylamine are desirably substituted with alkyl groups having from 1 to 20 carbon atoms or styryl groups. The reaction temperature is preferab ly from about 130.degree. to 150.degree.C. The controlled reaction conditions allow the use of solvents with extractable hydrogen atoms wit hout producing significant amounts of dehydrocondensation between the solvent and the diami nes. The reaction products have superior oxidative resi stance in the Oxidation Corrosion Stability Test (OCS) and Vapor Phase Coker Test o ver products products produced under other conditions.
Patent CA-2180275-C (CA)
Inventor: MURRAY BRENDAN DERMOT
IPC: B01J37/00
Filed: 1994-12-23
Granted: 2006-02-21
Abstract: An active and stable catalyst for isomerizing linear olefins to methyl branc hed isoolefins is provided by (a) mixing (i) a zeolite powder containing at least one zeolite with at least one one-dimensional por e structure having pore size small enough to retard by-p roduct dimerization and coke formation and large enough to permit entry of the line ar olefin and allow formation of the methyl branched iso olefin, (ii) an alumina-containing binder, (iii) water, (iv) at least one acid selec ted from monocarboxylic acids and inorganic acids and (v ) at least one polycarboxylic acid; (b) forming a pellet of the mixture; and (c) calcin ing the pellet. The resulting catalyst has superior sel ectivity, higher maximum product concentration in the product stream and longer run le ngth for isomerizing linear olefins to their correspondi ng isoolefins.
Patent CA-2180629-C (CA)
Inventor: MELTZER BRYANT K
IPC: A61H3/02
Filed: 1996-07-05
Granted: 2002-11-12
Abstract: A walking cane includes function enhancing elements, the cane including a si ng of a substantially vertical elongated support member having an upper end, a low er end and a longitudinal axis. A handle is complementally positioned about the support  member's upper end for selectable radial rotation relative to the longitudinal axis t hereof. Forward and rear and downwardly integrally dependent legs rigidly extend from the su pport member's lower end, the legs each having a body portion and foot portions. T he wheels are rotatably secured to each of the foot portions of the forward legs of a base, and friction-enhancing tips are integrally associated with each of the foot port ions of the rearward legs of the base.
Patent CA-2181930-C (CA)
Inventor: CRONCE GARY M
IPC: B60R9/04
Filed: 1995-01-23
Granted: 2005-08-16
Abstract: An article carrier for attachment to an automobile rooftop including a pair of luggage roof rails rhine to the rooftop, each roof rail having at least one detent disposed therein, an elongated crossbar having a support member including a track follower on the support slidably engaging the track, a latch (56) for releasably positioning the support member along the track at the at least one detent (22), the latch (56) having a protrusion (120) and a protrusion support that selectively positions the protrusion (120) in a recessed position wherein the support member is freely slidable along the track, and a latched position wherein the protrusion (120) is urged toward engagement with the at least one detent (22) for securing the support at a fixed position along the track, means for resiliently urging the protrusion support to the latched position and a retainer (130) for selectively maintaining the protrusion in the recessed position.
Patent CA-2183453-C (CA)
Title: Agents antiparasitaires
Inventor: WALSHE NIGEL DEREK ARTHUR
IPC: A61K31/343
Filed: 1995-02-01
Granted: 2000-12-26
Abstract: Dérivés antiparasitaires de l'avermectine et de la milbémycine de la formule (I) dans laquelle les lignes en pointillé représentent indépendamment des liaisons facultatives, R?1¿ e R?2¿ étant absents lorsque la double liaison C¿22?-C¿23? est présente, R?1¿R?2¿R?6¿ représentent indépendamment H, OH, halo, oximino ou un radical organique, R?4¿ et R?5¿ représentent des radicaux organiques, R?3¿ représente H ou un radical organique, et A et B peuvent représenter un large éventail de substituants. On prépare ces dérivés en faisant réagir avec une espèce électrophile un composé de la formule (I) dans laquelle A est un groupe hydrazone éventuellement substitué, afin d'effectuer la substitution en position 3; si nécessaire, on fait suivre cette étape par d'autres étapes de synthèse.
Patent CA-2186971-C (CA)
Title: Light display and method of forming the same
Inventor: DEWHURST RICHARD M
IPC: G09F9/302
Filed: 1996-10-02
Granted: 2006-12-19
Abstract: An alpha-numeric display arrangement, designed to be vandal-proof, has an opaque mould plate (24) mounted on the reverse of a metal front plate (10). A plurality of elongate apertures (22) in the plate (10) each form one of a plurality of segments of the alpha-numeric display.      Elongate apertures (36) of the mould plate (24) are accurately aligned with respective ones of the apertures (22) in the front plate (10). Molten illuminable material is introduced to a required level in each of the contiguous aperture pairs (22, 36). A space is left above the solidified material in which a light emitting diode mounted on a lighting board (38) is received. Thus, each of the apertures is served by a light emitting diode (40) which is in optical communication with the transparent material (42) provided within each of the apertures.
Patent CA-2188994-C (CA)
Inventor: TOMITA MINORU
IPC: C02F3/28
Filed: 1996-10-28
Granted: 2002-01-22
Abstract: The present invention provides a device for biological wastewater treatment which prevents flotation and deformation of mesh tubes packed in a reactor tank as microorganism retaining materials.  Device for biological water treatment 10 of the present invention comprises reactor tank 11; microorganism retaining media 12, which are installed in the tank; and air diffuser tubes 14, and wastewater distributor tube 16, both of which are installed under the microorganism retaining media.  The microorganism retaining media comprise supporting media 22 and mesh tubes 24, which are installed on the supporting media.  The supporting media are constituted in a manner that at least two the beams 26 are arranged on each supporting tier in parallel at certain intervals and the direction of the arrangement of the beams is alternately shifted by an angle of 90 degrees at every supporting tier.          Also, the supporting tiers are piled in a manner that a space between two adjacent supporting tiers is enough for arranging mesh tubes on a supporting tier.  The mesh tubes on each supporting tier are supported by beams of said supporting tier and arranged in parallel with beams on the adjacent tier.
Patent CA-2193975-C (CA)
Title: Apparatus and method for developing an anatomic space for performing laparoscopic procedures with laparoscopic visualization
Inventor: KIETURAKIS MACIEJ J
IPC: A61B19/00
Filed: 1995-06-29
Granted: 2004-06-22
Abstract: Balloon dissector (900) and associated methods for creating an anatomic space between tissue layers in a body of a patient. A deflated balloon (926) is formed into a generally cylindrical roll and mounted on a tunneling member (915). An integral balloon cover (908) is provided for retaining the balloon (926) in the roll during insertion of the balloon and tunneling member (915) into the body and during subsequent tunneling dissection. An endoscope guide (880) is also provided that may be used in place of or in addition to the integral balloon cover (908). A laparoscope (909) can be introduced into a bore in the tunneling member (915) to permit observation of the procedure. After the balloon (926) has been advanced to the desired location in the body it is inflated through a balloon inflation lumen (919) to cause the balloon (926) to break free of the integral balloon cover (908) and/or endoscope guide (880) and progressively expand to create the anatomic space.
Patent CA-2195097-C (CA)
Title: Method and apparatus for screening fibrous suspensions
Inventor: ALAJAASKI TIMO
IPC: D21D5/00
Filed: 1995-06-26
Granted: 2004-03-16
Abstract: A fiber suspension, such as in a pulp mill, is treated in a manner which minimizes both the investment and the operating costs associated with a screening plant. A single pump has an outlet connected to a knotter and primary and secondary screening stages so that the pump provides substantially the sole motive force to the pulp moving it through the knotter and screening stages. The knotter and screening stages are provided in a common housing with the knotter vertically above the screening stages, and the screening stages one above the other. A single motor may be provided to rotate rotatable elements associated with the knotter and screening stages. The knotter may be connected to a knot washer external of the housing by a valued conduit less than two meters in length, and the secondary screening stage can be connected to a tertiary screening stage exterior of the housing by a valued conduit less than two meters long. Rejects from the knot washer and secondary screening stage may be recycled to the pulp inlet, and dilution water may be introduced where necessary.
Patent CA-2207637-C (CA)
Title: Parison extrusion head with quick change die ring clamp assembly
Inventor: FLAMMER CHARLES D
IPC: B29C48/09
Filed: 1997-06-12
Granted: 2001-11-27
Abstract: A parison extrusion head includes a cylindrical body,  a programing rod in the body, a die pin on the end of the rod, and a die ring mounted on the end of the body by a clamp assembly having a pair of clamp arms which are connected to the body by hinges and are rotated between a closed position holding the die ring on the body an open position permitting free removal of the die ring. The clamp arms carry bolts used to move the die ring laterally and adjust the thickness of the extruded parison.
Patent CA-2216672-C (CA)
Inventor: LIN SHIH CHAO
IPC: H04B7/185
Filed: 1997-11-25
Granted: 2000-06-06
Abstract: A mobile satellite system includes a network engineering/systems engineering (NE/SE) system. The NE/SE performs the processes of comparing expected traffic loads with capability and availability of space and ground resources in the mobile satellite system, formulating tactical plans to maximize available resources of the satellite, and producing frequency plans for different geographical regions and defining circuit pools for different groups of users of the METs. The NE/SE also performs the processes of defining contingency plans for failure situations, such as failure in the satellite or a ground-based equipment outage, configuring the mobile satellite system including logical resources and physical components generating logical and physical configurations, the logical and physical configurations designed to expand the mobile satellite system capacity for increases in traffic demand, while also supporting new features and services of the mobile satellite system. The NE/SE further configures communication paths to external organizations operatively connected to the mobile satellite system, and tracks logistics of network additions to the mobile satellite system via generation of work orders.
Patent CA-2220158-C (CA)
Title: Remote telecommunications assembly
Inventor: LYSENG MERLIN
IPC: H01Q1/12
Filed: 1997-11-04
Granted: 2004-01-06
Abstract: A remote telecommunications assembly for use at a gas wellhead or other remote location includes a base formed of concrete curb sections, a steel frame mounted on the base and one or more masts mounted on the steel frame for carrying the electronic components of the assembly, batteries, a s olar panel and an antenna for transmitting and receiving signals.
Patent CA-2224244-C (CA)
Inventor: O'NEIL ALEXANDER GEORGE BRIAN
IPC: A61M5/14
Filed: 1996-06-07
Granted: 2007-03-20
Abstract: A delivery device for patient-controlled infusion of a medicament, the delivery device comprising a reservoir for the medicament and a pump having a predetermined delivery dose which is capable of displacing the medicament from the reservoir and delivering it to a patient, wherein the pump comprises a pumping means, a first conduit, capable of restricting flow rate, chosen in conjunction with the delivery dose of the pumping means to define a predetermined maximum dosage rate, said conduit connecting the reservoir to a pumping means, a one-way valve in fluid communication with the first conduit and the pumping means which permits medicament flow into the pumping means but prevents reverse flow, a controlling means, and a second conduit extending from the pumping means and having a distal end through which the medicament may be released, wherein the controlling means, (a) is in fluid communication with the pumping means and the second conduit; (b) opens when pressure within the dose chamber exceeds a predetermined minimum opening pressure for the controlling means; and, (c) is adapted to prevent the reverse flow of medicament and air into the pumping means.
Patent CA-2226895-C (CA)
Title: Swivel mounted device for grabbing, lifting and tipping containers
Inventor: MCNEILUS GARWIN
IPC: B65F3/02
Filed: 1996-07-31
Granted: 2002-08-27
Abstract: Vehicle mounted container handling devices including a rotating swivel mount  (220) and an articulated arm (230) connected to the swivel mount are disclosed. The swivel mount includes a housing operable to rotate about a shaft in a first plane. The articulated arm is attached at one end to the housing and disposed to pivot in a second plane which intersects the first plane. A grasping device (232) is pivotally connected to the free end of the  articulated arm for pivoting in the second plane. In operation, with the grasping device opened, the articulated arm is extended to reach out toward a container of interest. The swivel mount is operated to pivot the articulated  arm as required for the grasping device to engage the container. The articulated arm is operated further to lift and dump the container in the vehicle above the swivel mount. The grasping device includes arms pivotally connected to a support member and moved by actuators pivotally connected between the arms and the support member.
Patent CA-2231074-C (CA)
Title: Separable, flexible electrical connection arrangement
Inventor: OPFER JOHN C
IPC: H01R35/00
Filed: 1998-03-04
Granted: 2006-10-31
Abstract: A separable, flexible connection arrangement is provided for connection of two conductors. In one arrangement, the separable, flexible connection arrangement is utilized to provide an externally removable bushing for connecting an electrical component located within a sealed enclosure.
Patent CA-2234096-C (CA)
Inventor: SOMMEN FRANCOIS MARIA
IPC: A61K31/00
Filed: 1996-10-25
Granted: 2005-06-14
Abstract: L'invention concerne des composés de la formule (I), les formes N-oxyde de ceux-ci, les sels d'addition acceptables sur le plan pharmacologique ainsi que les formes stéréo-isomères de ces composés. Dans cette formule, n vaut 0, 1 ou 2; m vaut 1 ou 2, à condition que si m vaut 2, n vaille 1, p vaut 1 ou 2; =Q représente =O ou =NR<3>; X représente une liaison covalente ou un radical bivalent de formule -O-, -S-, -NR<3>-; R<1> représente Ar<1>, Ar<1>alkyle C1-6 ou di(Ar<1>)alkyle C1-6, où chaque groupe alkyle C1-6 est éventuellement substitué par hydroxy, alkyloxy C1-4, oxo ou un substituant oxo cétalisé; R<2> représente Ar<2>, Ar<2>alkyle C1-6, Het<1> ou Het<1>alkyle C1-6; R<3> représente hydrogène ou alkyle C1-6; L représente hydrogène; Ar<3>; alkyle C1-6; alkyle C1-6 substitué par un ou deux substituants choisis parmi hydroxy, alkyloxy C1-6, Ar<3>, Ar<3>alkyloxy C1-6 et Het<2>; alcényle C3-6; Ar<3>alcényle C3-6; di(Ar<3>)alcényle C3-6 ou un radical de la formule (a-1), (a-2), (a-3), (a-4) ou (a-5); Ar<1>, Ar<2> et Ar<3> représentent chacun phényle ou phényle substitué; Het<1> et Het<2> représentent chacun un hétérocycle monocyclique ou bicyclique. Ces composés constituent des antagonistes de la substance P. On décrit également leur préparation, des compositions les contenant ainsi que leur utilisation en tant que médicament.
Patent CA-2240413-C (CA)
Title: Selective alkylations of cyclodextrins at the levels of minimal effective basicity
Inventor: PITHA JOSEF
IPC: A61K47/10
Filed: 1996-12-18
Granted: 2008-09-23
Abstract: By controlling basicity of the reaction, it is possible to alkylate preferentially the secondary hydroxyls of cyclodextrins. These hydroxyls surround the principal, wide, entry into the cyclodextrin cavity and, thus, their substitution by suitably chosen substituents can improve the formation of inclusion complexes. By methods of the invention, cyclodextrin derivatives substituted with fused 1,4-dioxane ring(s) can be obtained. If a reagent with one alkylating moiety is used, a mixture of ethers of cyclodextrin is formed. Using methods of this invention, up to 96 % of the substitution can be directed to the secondary hydroxyls.
Patent CA-2240648-C (CA)
Inventor: STEPHENS GARY BOYD
IPC: H04W4/02
Filed: 1998-06-16
Granted: 2004-04-27
Abstract: A method and system product in a wireless communications network for limiting communication transactions are disclosed. Initially, a communications transaction from an originator to a primary recipient is initiated. An identity of the originator and an identity of the primary recipient are determined. A termination of the communications transaction is then restricted to a specified area based upon the identify of the originator or the identity of the primary recipient. Alternatively, the communications transaction can be restricted to a specified area based upon the identity of the primary recipient alone or based upon the identity of the originator alone, or in combination with one another. If the communications transaction is restricted to a specified area, a class of equivalent recipients that are allowable substitutes for the primary recipient are then identified. Next, it is determined which recipient among the equivalent recipients and the primary recipient is most advantageously suited to receive the communications transaction. The communications transaction is then automatically routed to the recipient most advantageously suited to receive the communications transaction. If no equivalent recipients are identified who are advantageously suited to respond to the communications transaction, alternative action is then implemented. The identity of the originator can include calling line identification information, and the identity of the primary recipient can include a directory number of the primary recipient.