baber/WOPTO huggingface dataset:
Patent CA-2145878-A1 (CA)
Title: Precursors and processes for making metal oxides
Inventor: SCOTT MICHAEL E
IPC: C23C16/52
Filed: 1993-10-21
Abstract: A first metal, an alcohol, and a carboxylic acid are reacted to form a metal alkoxycarboxylate which is then reacted with an alkoxide and/or a carboxylate of a second metal to form a precursor. Alternatively, a metal carboxylate and a metal alkoxide are combined and heated to form a precursor. In either alternative, the precursor includes all or most of the metal-oxygen-metal bonds of a desired metal oxide and a carboxylate ligand. The precursor is applied to a substrate (18, 38, 47, 75), dried and an-nealed to form the metal oxide (12, 30, 48, 60), such as BST. The metal-oxygen-metal bonds in the precursor permit the desired metal oxide (12, 30, 48, 60) to be formed from the precursor in one step, providing excellent thin films suitable for integrated cir-cuits. The carboxylate ligand provides stability to the precursor allowing it to be stored for periods common in large scale manu-facturing.
Patent CA-2146928-A1 (CA)
Title: Imidazopyridine derivatives as 5-ht4 receptor antagonists
Inventor: KING FRANCIS DAVID
IPC: C07D471/04
Filed: 1993-10-12
Abstract: Compounds of formula (1), and pharmaceutically acceptable salts thereof, and the use of a compound of formula (1) or a pharmaceutically acceptable salt thereof, wherein R1 is hydrogen or C1-6 alkyl; R2 is hydrogen or halo; Y is O or NH; Z is of sub-formula (i), (ii), (iii), (iv) or (v), or wherein the piperidine ring in (i) or (ii) is replaced by pyrrolidinyl and/or the N-sub-stituent in (i) or (ii) is replaced by R3 wherein R3 is hydrogen or C1-12alkyl, aralkyl or R3 is (CH2)r-R10 wherein r is 2 or 3 and R10 is selected from cyano, hydroxyl, C1-6 alkoxy, phenoxy, C(O)C1-6alkyl, COC6H5, -CONR11R12, NR11COR12, SO2NR11R12 or NR11SO2R12 wherein R11 and R12 are hydrogen or C1-6 alkyl; or a compound of formula (1) wherein the CO-Y linkage is replaced by a heterocyclic bioisostere; having 5-HT4 receptor antagonist activity.
Patent CA-2147609-A1 (CA)
Title: Cephem compounds, and their pharmaceutical compositions
Inventor: KAWABATA KOHJI
IPC: A61P31/04
Filed: 1993-10-19
Abstract: New cephem compounds of formula (I), wherein R1 is amino or protected amino, R2 is hydrogen, a hydroxy protective group, lower alkyl or mono(or di or tri)halo(lower)alkyl, R3 is carboxy or protected carboxy, and R4 is pyridylvinyl which may have suitable substituent(s), with proviso that (i) when R2 is hydrogen and R4 is 3-pyridylvinyl, then R3 is not carboxy, and (ii) when R2 is tetrahydropyranyl and R4 is 3-pyridylvinyl, then R3 is not benzhydryloxycarbonyl, and pharmaceutical acceptable salts thereof which are useful as a medicament.
Patent CA-2152291-A1 (CA)
Title: Pulse-operated point feeder
Inventor: MANJUNATH KONANUR S
IPC: C25C3/14
Filed: 1995-06-21
Abstract: A point feeder (1) for metering powder materials, for example aluminium oxide, to a Hall-Heroult electrolysis cell; the point feeder consists of a vertical tube (2) and a horizontal tube (3) which are joined so that they almost form an L-shaped channel with a material input (4) at the upper end of the vertical tube and a material output (5) at the end of the horizontal tube. The vertical tube (2) is provided with a nozzle device (6), which has features which allow air to penetrate in the form of one or more downward-facing holes for pulsed air flows to the lower part of the vertical tube and the whole of the horizontal tube.
Patent CA-2155050-A1 (CA)
Title: Recovery of nickel using heap leaching
Inventor: TUNLEY TREVOR
IPC: C22B3/18
Filed: 1995-07-31
Abstract: The production of nickel from a sulphide ore by heap leaching the ore by subjecting the ore to biological oxidation, separating nickel from iron, into an eluate solution, by solvent extraction or the use of an ion exchange reagent, and electrowinning ferronickel from the eluate solution.
Patent CA-2156193-A1 (CA)
Inventor: MATSUMOTO MUNEYUKI
IPC: C08K5/37
Filed: 1994-12-12
Abstract: Mousse réticulée produite en deux étapes de vulcanisation et moussage d'un composé de caoutchouc comprenant (A) un caoutchouc copolymère d'éthylène-.alpha.-oléfine chloré présentant une teneur en chlore comprise entre 20 et 40 % en poids et une viscosité de Mooney (ML¿1+4? à 121 ~C) située entre 10 et 190, (B) un triazinethiol servant d'agent vulcanisant, (C) un halogénure d'alkylammonium servant d'accélérateur de vulcanisation, et (D) un agent de soufflage d'hydrazide. La température et le temps de vulcanisation dans la première étape correspondent respectivement à 120-140 ~C et 5-10 minutes, alors que ces mêmes paramètres, dans la deuxième étape, correspondent respectivement à 125-160 ~C (au moins 5 ~C de plus que dans la première étape) et 5-20 minutes, le taux d'expansion étant compris entre 3 et 10. La mousse ainsi obtenue peut être colorée avec des couleurs brillantes et présente une excellente résistance aux intempéries; elle est très souple et garde sa forme, et convient tout particulièrement à la fabrication de combinaisons de plongée et d'autres articles similaires.
Patent CA-2157155-A1 (CA)
Title: Wood rail assembly and method of assembling same
Inventor: DESOUZA JOSEPH
IPC: E04F11/18
Filed: 1995-08-29
Abstract: A wood railing assembly for use between vertical posts which may be attached to a wood deck, utilizes top and bottom rails together with a middle rail.   The balusters include top,  middle and bottom zones having non-circular cross-sections and the middle rail has matching openings.  The top and bottom rails have grooves facing the middle rail and a lattice strip is secured to the ends of the balusters and fits within the groove on the rail and suitable fasteners produce a unitary assembly.  The assembly is constructed using the middle rail as a template for positioning the balusters on top and bottom lattice strips which then fit within the grooves on the top and bottom rails.
Patent CA-2159181-A1 (CA)
Inventor: PEASE RICHARD ARTHUR
IPC: D01F6/60
Filed: 1994-03-28
Abstract: In the preparation of poly(m-phenylene isophthalamide) filaments, hydrogen chloride is removed from as produced amide solution of poly(m-phenylene isophthalamide) by contact with basic ion exchange resin.
Patent CA-2159628-A1 (CA)
Title: Bifunctional nucleosides, oligomers thereof, and methods of making and using the same
Inventor: CHATURVEDULA PRASAD VENKATA CH
IPC: C07H19/06
Filed: 1994-03-21
Abstract: Disclosed are novel bifunctional nucleoside analogs and oligonucleosides of 3 - 4 bases (trimers and tetramers) and longer containing at least two consecutive internucleodide linkages of two carbon-one nitrogen atom or two carbon-one oxygen atom (3'-NCC-5', 3'-CNC-5', 3'-OCC-5') internucleoside linkages. The bifunctional nucleosides are useful for preparing the trimers and tetramers, which, in turn, are useful, together with the nucleosides, in preparing oligonucleosides as well as chimeric oligonucleotide analogs, preferably antisense oligonucleosides and oligonucleosides analogs, of 6 to about 60 bases having at least two consecutive internucleoside linkages of two carbon atoms and one nitrogen atom or 2 carbon atoms and one oxygen atom in the oligonucleoside backbone.
Patent CA-2159942-A1 (CA)
Title: Stable heavy oil-in-water emulsions
Inventor: SANKEY BRUCE M
IPC: B01F23/47
Filed: 1995-10-05
Abstract: Heavy oil-in-water emulsions useful as fuels are prepared by mixing the heavy oil, water and surfactant in a first static mixer  at relatively high temperatures and  low shear rates  to form a  substan-tially uniform blend without the substantial formation of an emulsion. The effluent from the first static  mixer is mixed in a second  static mixer at relatively high  shear rates to emulsify  the blend which  is then passed into a third static  mixer wherein it is mixed with  water at a relatively low  shear rate to reduce  its temperature and  dilute the emulsion to a desired water content.  The surfactant is preferably a mixed non-ionic  surfactant system containing  a relatively low  HLB surfactant and a relatively high HLB surfactant.
Patent CA-2159998-A1 (CA)
Title: Dissolved solids control in pulp production
Inventor: MARCOCCIA BRUNO S
IPC: D21C7/00
Filed: 1994-02-25
Abstract: Kraft pulp of increased strength and bleachability may be produced with decreased consumption of effective alkali, and at a lower H factor, by keeping the dissolved organic material (DOM) concentration low substantially through the entire kraft cook, including by extracting high DOM liquid from at least one part of a continuous digester and replacing it with much lower level DOM liquid. Existing pulp mills having two-vessel hydraulic, one-vessel hydraulic, or other systems may be retrofit to provide for extractions and additions of low DOM dilution liquor (including substantially DOM free white liquor). Also, commercial size batch digesters (8 tons perday of pulp or more) can be operated with low DOM liquor to produce increased strength pulp. Using dilution with low DOM liquor also results in reduced H factor and effective alkali consumption, and increased bleachability.
Patent CA-2161959-A1 (CA)
Inventor: DOLMAN KEVIN FRANCIS
IPC: C22C37/08
Filed: 1994-05-20
Abstract: Cette invention concerne des systèmes d'alliages eutectiques tels que des fontes blanches brutes, dans lesquels une phase primaire sort du bain de fusion lorsque ce dernier est refroidi en-deça de la température du liquidus. Le procédé consiste à verser l'alliage métallique fondu à une température égale ou supérieure à cette dernière, dans un moule de coulée pour former un moulage; et à introduire un matériau particulaire dans l'écoulement de métal fondu pour extraire la chaleur de l'alliage de métal fondu afin de le surrefroidir de la température d'écoulement dans la plage de solidification de la phase primaire entre les températures du liquidus et du solidus de l'alliage et par conséquent d'initier la nucléation de la phase primaire et de restreindre le développement de la phase primaire. La première foction du matériau particulaire est de faire office de puits thermique, cependant ce matériau particulaire peut se dissoudre au moins partiellement dans le bain de fusion et peut jouer le rôle d'agent d'amorçage pour la phase primaire. Cette invention concerne plus particulièrement des fontes blanches brutes hypereutectiques riches en chrome.
Patent CA-2163588-A1 (CA)
Title: Boot attachment structure for rotary joint
Inventor: KUDO SATORU
IPC: F16D3/84
Filed: 1995-11-23
Abstract: A housing has, on an outer circumferential surface thereof, a circumferential surface area, a toothed surface area complementary in shape to grooves and teeth of a boot of rubber, and a stopper engagable by tip ends of the boot of rubber and a boot of synthetic resin.  The circumferential surface area, the toothed surface area, and the stopper are successively arranged in the order named in the direction in which the boots are installed onto a rotary joint.  The housing has an outside diameter at the circumferential surface area which is equal to or greater than an inside diameter of the boot of synthetic resin.  The circumferential surface area, circumferential teeth of the toothed surface area, and the stopper are progressively higher radially outwardly in the order named.
Patent CA-2164181-A1 (CA)
Title: Enhanced visualization of surgical latching devices
Inventor: JAMIOLKOWSKI DENNIS D
IPC: A61B17/12
Filed: 1995-11-30
Abstract: A surgical device having a latching mechanism comprising a latch member; and a retaining member having at least one aperture adapted to receive and retain said latch member in a locked position, said latch member and said retaining member being of contrasting colors so that when the latch member is locked in place by the retaining member that the latch member's presence in the locked position is externally visible.
Patent CA-2167163-A1 (CA)
Title: Detergent-package combination
Inventor: COOK THOMAS EDWARD
IPC: C11D3/386
Filed: 1994-07-13
Abstract: The present invention elates to detergent compositions containing selected moisture-sensitive ingredients; it provides a combination between such compositions and a packaging system containing them, such a combination providing optimum protection against moisture to said selected ingredients, and thus excellent storage stability to the finished compositions.
Patent CA-2171499-A1 (CA)
Title: Assembly of air-adjustable, lumbar back support with mattress
Inventor: JOHNSON DAIRL M
IPC: A61G7/07
Filed: 1996-03-11
Abstract: An air-adjustable, lumbar back support assembly with a mattress is provided, comprising an air-adjustable, impervious envelope containing an open-cell, foam material.  The envelope is insertable into at least one support area of the mattress and adjustably positioned therein for support of a user's back. When the envelope is inflated it produces a bulge on top of the mattress and this bulge  is adjustably positioned under a portion of the user's back requiring treatment.  This results in a reduction of back stresses and back discomfort, and a more restful sleep.  Initially, the envelope is usually pressurized with air at a low level, but as treatment progresses,  the envelope can be increasingly pressurized to provide a greater support as the user becomes more accustomed to the treatment. The mattress can be used in its regular form, without the back support, or it can be used as an assembly with the back support for ongoing treatment,  or to prevent  future problems,  as required.
Patent CA-2173250-A1 (CA)
Title: Automatic power level control of a packet communication link
Inventor: FLAMMER GEORGE H
IPC: H04L12/28
Filed: 1994-09-29
Abstract: In a wireless LAN packet communication system for each successfully received packet the strength of the received signal is measured at a target node (6) by monitoring an A/D converted RSSI signal (A).  A record of minimum strength among successfully received packets is maintained at the target node (6).  For each successfully received packet the difference between the signal strength of the packet and the recorded minimum is calculated at the target node (6) and sent over the link to the source node (4) as a quantitative difference indicator (F).  The source node (4) maintains a moving average of difference indicators received over time and adjusts the transmitter power level (J, K) so as to maintain the moving average at a preselected link margin threshold level.  Alternatively,  the calculation of a desired source node power level change is performed at the target node (6) and transmitted to the source node (4).
Patent CA-2173272-A1 (CA)
Title: Stimulation of stem cells and other cells
Inventor: PILARSKI LINDA MAY
IPC: A61K31/728
Filed: 1996-04-02
Abstract: The use of forms of hyaluronic acid selected from the group consisting of hyaluronic acid and pharmaceutically acceptable salts thereof is provided for the same purposes known for recombinant GM-CSF and includes the use of stimulating stem cells.
Patent CA-2174787-A1 (CA)
Title: Portable movable seat
Inventor: SWITZER MAX
IPC: A61G5/14
Filed: 1996-04-23
Abstract: A portable seat assembly for invalids, handicapped and elderly persons is designed to be placed and secured on a support surface of a chair structure, such as the passenger side seat of an automobile. The seat assembly has a seat plate with a cushion pad for receiving a user, a base plate for engaging the automobile seat, and a swivel plate intermediate the base plate and the seat plate. A support assembly is provided for supporting the seat plate on the swivel plate and the swivel plate on the base plate. The support assembly has a twist support component for providing at least limited rotational movement of the swivel plate relative to the base plate, and a slide support component for providing limited fore and aft sliding movement of the seat plate relative to the swivel plate either separately or concurrently with the rotational movement. A locking mechanism selectively locks the rotational and sliding movements in a plurality of positions.
Patent CA-2175307-A1 (CA)
Inventor: DAVIS THOMAS E
IPC: B05B7/04
Filed: 1996-04-29
Abstract: A low viscosity, plural component, fast curing caulking, system, which may also be used to introduce sealants or adhesives on to a substrate, said system comprising: a delivery conduit means for dispensing a mixed fluid composition of the caulk, sealant, or adhesive type on to a substrate, a metering means for mixing and transmitting properly proportional amounts of at least a first component fluid and a second component fluid to said delivery conduit means wherein, (A) said first component fluid includes an isocyanate containing material, and (B) said second component fluid includes an amine terminated polymeric polyol material and a chain extender material, first container means for holding said first component fluid, second container means for holding said second component fluid, and a pressurization means for supplying gaseous pressure to said first and second container means to thereby cause proper amounts of said first and second component fluids to be transmitted to said metering means and thereafter to the delivery conduit means for dispensing of the mixed fluid composition on the substrate.
Patent CA-2177936-A1 (CA)
Title: Contact lenses from highly permeable siloxane polyol material
Inventor: NUNEZ IVAN
IPC: G02C7/04
Filed: 1996-05-31
Abstract: The present invention provides soft contact lenses adopted for placement over the cornea or in the eye which have a high oxygen permeability, a low water content and excellent mechanical properties.  Moreover, the lenses of the instant invention have excellent protein and lipid deposition resistance relative to conventional contact lenses.  Such lenses having the properties mentioned above comprises a prepolymer which contains an alkoxylate glucoside that is derivatized with at least one polysiloxane compound.  The prepolymer is then placed in a suitable mold and polymerized by exposure to ultraviolet light.
Patent CA-2178023-A1 (CA)
Title: Flexible step assembly for vehicles
Inventor: RINALDI RANDY D
IPC: E04G3/00
Filed: 1996-06-03
Abstract: This invention relates to a flexible step assembly for vehicles, which includes a number of vertically disposed horizontal steel tread members attached at their ends to flexible side members. A spring loaded assembly is attached to the upper ends of each side member, the spring loaded assembly is of two part construction, top part being fixed to a location on the vehicle for use, the lower part being separable under impact from the top part, but upon release of loading, recoupled by a spring and its associated components.
Patent CA-2191927-A1 (CA)
Title: Joint Assembly
Inventor: WOOD RUEY E
IPC: F16C11/08
Filed: 1996-12-03
Abstract: A ball joint (12) is disclosed comprising a stamped sheet metal socket (14) and a ball end (18).  The socket (14) comprises a base portion (40) and a conical portion (38) above the base portion (40) integral with the base portion (40).  A wear tolerance compensator (44) is seated against the base portion (40).  A plastic spherical bearing (46) is contained within the socket (14) and seats against the wear tolerance compensator (44).  The ball end (18) is contained by the spherical bearing (46).  An annular metal collar (48) fits over the spherical bearing (46).  The collar (48) comprises a tapered end (82) which seats in the socket conical portion (38).  The socket (14) comprises an annular lip (32) which clamps the collar (48) and presses the collar tapered end (82) into sealing engagement with the conical portion (38), under a predetermined load, sealing the socket (14) against environmental ingress.
Patent CA-2198136-A1 (CA)
Inventor: MCKAY KEVIN W
IPC: C08F210/02
Filed: 1995-08-04
Abstract: Elastomère thermodurci comprenant un copolymère réticulé pseudo-aléatoire ou sensiblement aléatoire formé de: (a) 15 à 70 pour cent en poids d'au moins une .alpha.-oléfine, (b) 30 à 70 pour cent en poids d'au moins un composé aromatique au vinylidène, et (c) 0 à 15 pour cent en poids d'au moins un diène. On présente également un vulcanisat thermoplastique comprenant les élastomères thermodurcis de cette invention intégrés dans une matrice polyoléfinique thermoplastique; et des procédés de préparation desdits élastomères thermodurcis et vulcanisats thermoplastiques ainsi que des pièces fabriquées avec ces derniers. Ces nouveaux matériaux se caractérisent par des propriétés plus équilibrées par rapport aux matériaux à base d'éthylène/propylène ou d'éthylène/propylène/diène.
Patent CA-2198289-A1 (CA)
Title: Method and apparatus for the winding up of a paper web to form a roll
Inventor: PREISING RALF
IPC: B65H19/22
Filed: 1997-02-24
Abstract: For winding up of a paper  web to form a paper roll, a first reel spool is accelerated to the speed of the web and brought into a first, start-of-winding position in which it forms a nip with a driveable press drum. The beginning of the web of paper is guided around the press drum and is wound onto the first reel spool. When a first layer thickness has been wound, the first reel spool is transferred into a second, complete-winding position and the paper roll is wound up there to its desired layer thickness. During the entire winding process, the press drum or a special press roll are pressed against the winding surface of the developing paper roll, a torque is introduced into the axis of the first reel spool by means of a central drive and the press drum and/or press roll and the first reel spool with the developing paper roll thereon are displaced, preferably exclusively horizontally, without substantial changes in the direction or orientation of those elements. Then a second reel spool is accelerated and brought into the first position before transferring the web to the second reel spool.
Patent CA-2199903-A1 (CA)
Title: Built-Up I-Beam with Laminated Flange
Inventor: IRVING DAVID C
IPC: E04C3/14
Filed: 1997-03-13
Abstract: An I-beam for use in construction, built-up from a web held between a pair of laminated flanges. Each flange includes a first laminate made of oriented strand lumber and a second laminate laminated to the first laminate. The web is between the first laminates.
Patent CA-2204805-A1 (CA)
Inventor: HAKKARAINEN JUKA M
IPC: G11C7/16
Filed: 1997-05-08
Abstract: An analog memory unit that can be implemented, at least in part, on an application specific integrated circuit (ASIC), utilizes at least the ASIC arithmetic logic unit (ALU) to enhance performance and to generate and store an accurate measure of power line thermal status. The memory unit includes an analog-to-digital (A/D) converter for converting an input analog signal from a parallel R-C circuit to a digital signal and a scaler for scaling the digital signal from the A/D converter to within a range acceptable for further processing. The memory unit also includes an arithmetic logic unit (ALU) which receives input signals from the scaler and from a digital thermal memory. The input signal supplied to the ALU from the digital thermal memory is a four bit (digital) value proportional to the measured actual thermal status of the subject power line. The output of the ALU is connected to the input of latches which latch, or store, the digital signal produced by the ALU. The ALU output signal is representative of the difference between charge on the R-C circuit and the most recently measured actual thermal status of the power line. The latches are connected to a digital-to-analog converter which has its output connected tothe input of the A/D converter and to the R-C circuit.