baber/WOPTO huggingface dataset:
Patent CA-2283551-A1 (CA)
Title: Photoetching of acoustic lenses for aip
Inventor: ELROD SCOTT A
IPC: B41J2/16
Filed: 1999-09-24
Abstract: A method of fabricating a lens comprising providing a photosoluble substrate having opposed first and second surfaces; exposing one of the surfaces of the substrate to a photoactive etchant; and exposing said etchant to patterned light such that a convex or concave, generally semi-spherical bulge or recess is formed in said substrate.
Patent CA-2285139-A1 (CA)
Inventor: ADRIAN WILLIAM E
IPC: B62D25/18
Filed: 1999-10-06
Abstract: A mud flap holder for mounting the on rear portion of a vehicle behind its rear wheels, wherein the mud flap is held between the back plate of the holder and a pivotally mounted jaw cover by spring loaded tension. The mud flap is inserted in the holder by first opening the jaw cover of the holder, for example with a lever, placing the flap between the jaw cover and back plate of the holder, and releasing the lever so that the jaw cover closes, securing the mud flap between the back plate and the jaw cover. In a preferred embodiment, the mud flap is not damaged if the flap is accidentally pulled out from the holder.
Patent CA-2285199-A1 (CA)
Inventor: JOHNSTON MICHAEL JOHN DRUMMOND
IPC: H04Q3/00
Filed: 1998-03-24
Abstract: The present invention concerns a control system for controlling a distributed intelligent network, the system comprising a digital processor, input means for receiving input commands, analysis means for carrying out lexical and syntactical analysis on input commands to generate target code, means for responding to a partial command to generate data signals indicative of a range of options, and means responsive to a chosen option from the indicated range to cause the analysis means to re-analyse the original command together with the chosen option so as to generate a further set of data signals indicative of a set of further options.
Patent CA-2285276-A1 (CA)
Inventor: HART PAUL R
IPC: C08H7/00
Filed: 1998-03-18
Abstract: The separation of black liquor, containing lignin, from tall oil is enhanced by the addition of a separation aid. The separation aid is an alkylphenol-Formaldehyde resin ethoxylate, an ethanol amine condensate, or combination thereof.
Patent CA-2286274-A1 (CA)
Inventor: HYNDMAN ARN CLOSE
IPC: G06F9/44
Filed: 1999-10-14
Abstract: The user interface is divided into client-server portions, based on the multilevel model-view-controller (MMVC) architecture. The MMVC architecture results in a high performance user interface that addresses the problem of how to divide functionality, and introduces performance issues in a distributed or three-tier architecture. This division of concerns results in a dramatic reduction in the size of the component which runs on the user's terminal, resulting in lighter weight client interfaces, that are flexible and powerful and does not require to have a high bandwidth connection to the server. Thus, the user's terminal may be a low-end personal computer with a dial-up access to the Internet service provider.     This layered structure may be built over an existing network manager provided with a graphical user interface.
Patent CA-2287042-A1 (CA)
Inventor: WOLF JOSEPH F
IPC: E04D13/03
Filed: 1999-10-21
Abstract: A system and method for providing natural daylight to a structural interior that comprises a dome that is flush mounted to a roof, an optional liner, a light shaft and a lens. The dome is preferably constructed of thermoformed polycarbonate having a flange for flush mounting the dome to a roof. The liner is preferably used in combination with and mounted to the dome to diffuse light entering the dome into the light shaft. The light shaft is preferably constructed of reflective insulation. The lens is preferably thermoformed to hang below ceiling level and diffuse light into the interior. The system of the invention provides a quickly installed, economical daylighting system that is aesthetically pleasing and is particularly applicable to the pre-manufactured housing industry. Additionally, the system is environmentally sound because it reduces or eliminates the need for daytime artificial lighting, provides an insulation barrier between the dome and liner and between the interior of the light shaft and the void of the roof support structure, and deadens noise from outside elements.
Patent CA-2288754-A1 (CA)
Title: Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip
Inventor: STREZOV LAZAR
IPC: B22D11/06
Filed: 1998-06-02
Abstract: Twin roll casting has been applied with some success to non-ferrous metals, which solidify rapidly on cooling. The same, however, is not true for ferrous metals, as it has not been possible to achieve sufficiently rapid and even cooling of metal over the casting surfaces of the rolls. This problem has been overcome by utilising a metallic surface for the rolls, which has a high affinity for the molten steel of the casting pool and a melting temperature greater than the temperature of the casting surface. The molten steel produces extremely good wetting of the casting surface of the roll, resulting in a wetting angle of the molten steel on the casting surface of less than 40~. Preferably, this wetting angle is less than 20~ and the casting surface has an Arithmetic Mean Roughness Value (Ra) of less than 10 microns. These desirable properties on the roll surface are achieved by selecting an at least partially amorphous alloy of two constituents. Preferably, the alloy is a fully amorphous alloy of the nickel-phosphorus systemcontaining about 10 % phosphorus and the balance nickel, which may be applied by eletroless coating. This roll surface prevents the build-up of iron oxide on the casting surfaces of the rolls, which build-up interferes with the uniform conduction of heat away from the molten steel, resulting in simultaneous solidification of the .delta. and .gamma. iron phases (0.01-0.18 %C), which causes a surface defect, known as "crocodile-skin". The net effect of utilising this amorphous alloy for the surface of the casting roll is a superior and uniform conduction of heat away from the molten steel, rapid transformation of the steel's microstructure into the wholly austenitic (.gamma.) region, exhibited by fine prior austenite grain boundaries conforming to dendritic grain boundaries and absence of "crocodile-skin" surface defects on the cast strip.
Patent CA-2289105-A1 (CA)
Title: Improved silica product for use in elastomers
Inventor: BEAVERS MARK A
IPC: C08L9/06
Filed: 1998-05-01
Abstract: A precipitated amorphous silica product particularly useful as a highly dispersible filler to elastomeric compounds, especially rubber passenger tire tread formulations. The invention has a CTAB specific surface area of about 10 m2/g to less than 140 m2/g; a multi-point BET surface area of about 50-225 m2/g; a 5 % pH value of about 5.0-8.5; a DBP oil absorption of about 160-310 cm3/100g; a linseed oil absorption of about 150-300 cm3/100g; a projected surface area of no greater than about 4000 nm2; and a pore volume ratio of pores ranging from 175 to 275 .ANG. in diameter to all pores less than 400 .ANG. in diameter of about 10 % to less than 50 %.
Patent CA-2296081-A1 (CA)
Title: Label transfer system for labels cut off a linerless web by a laser
Inventor: MERCHAND RAYMOND J
IPC: B65C9/18
Filed: 1998-07-15
Abstract: An article transfer system is disclosed for transporting articles cut from a blank of material traveling in a first direction. The system comprises a support member including first and second surfaces and a plurality of openings extending between the first and second surfaces. The support member is movable along the first direction adjacent to the blank of material. The system also includes in one embodiment, a vacuum for generating a lower pressure adjacent to the second surface of the support member than the pressure adjacent to the first surface thereof such that the blank is urged to maintain contact with the first surface of the support member.
Patent CA-2296273-A1 (CA)
Inventor: GORMANNS FRANZ
IPC: F26B11/02
Filed: 2000-01-19
Abstract: The invention relates to process for the production of granules, more particularly surfactant-containing granules, from a moist starting material in an air-flow dryer (1), the granules dried in the dryer (1) being discharged onto a conveyor (3) by a discharge unit (2) sloping away from the dryer (1). In order to provide a simple and inexpensive process in which overgranulation is avoided, it is proposed that the residence time of the starting material in the dryer (1) be controlled through the speed of the conveyor (3). The invention also relates to an arrangement for carrying out the process.
Patent CA-2296704-A1 (CA)
Title: Cardiac muscle regeneration using mesenchymal stem cells
Inventor: GORDON STEPHEN L
IPC: A61K35/12
Filed: 1998-07-14
Abstract: Disclosed is a method for producing cardiomyocytes in vivo by administering to the heart of an individual a cardiomyocyte producing amount of mesenchymal stem cells. These cells can be administered as a liquid injectible or as a preparation of cells in a matrix which is or becomes solid or semi-solid. The cells can be genetically modified to enhance myocardial differentiation and integration. Also disclosed is a method for replacing cells ex vivo in a heart valve for implantation.
Patent CA-2296901-A1 (CA)
Title: Piperidine derivates having anxiolytic effect
Inventor: MOLTZEN EJNER K
IPC: C07D409/14
Filed: 1992-06-12
Abstract: Piperidine compounds having formula (I):   (see formula I) wherein R1 is a group having the general formula (II):   (see formula II) These compounds have shown effect in animal models indicative of anxiolytic properties. Accordingly they are useful as medicines for the treatment of anxiety, psychosis, epilepsy, convulsion, movement disorders, motor disturbances, amnesia, cerebrovascular diseases, senile dementia of the Alzheimer type or Parkinson's disease.
Patent CA-2299434-A1 (CA)
Title: Metallation of macrocycles with 2,4-dicarbonyl-metal complexes
Inventor: ROSINGANA MIGUEL
IPC: A61K49/06
Filed: 1998-07-09
Abstract: A method has been developped which utilizes a metal-2,4-dicarbonyl complex as an organic solvent soluble metal ion source in the metallation of polyazamacrocycles including porphyrins, expanded porphyrins and porphyrinoid compounds. Use of a metal ion source which is soluble in the metallation reaction medium produces significantly higher yields of a measurably purer product than is achieved using an insoluble or only sparingly soluble metal salt as in the prior art. Additionally, because the metallation can be performed in relatively concentrated mixtures, the reaction times are dramatically shorter and the amount of waste produced is less than when simple metal salts serve as the metal ion source. Further, use of the soluble metal2,4-dicarbonyl complex simplifies the purification protocol required for the metallated expanded porphyrin.
Patent CA-2300405-A1 (CA)
Title: Use of cholinesterase inhibitors for treating attention deficit disorders
Inventor: MURRAY JAMES ROBERT
IPC: A61K31/445
Filed: 1998-08-07
Abstract: The invention provides the use of cholinesterase inhibitors, particularly acetylcholinesterase inhibitors such as galantamine, in the manufacture of a medicament for combatting attention deficit disorders.
Patent CA-2300632-A1 (CA)
Inventor: HENRION MICHEL
IPC: G06F13/36
Filed: 2000-03-13
Abstract: A collection of memory elements (34ij) are arranged in a network (32) of C sub-assemblies, with C the number of elements stocked temporarily. Each sub-assembly corresponds to an object and all sub-assemblies have P elements corresponding to P time points. Each element has RAM receiving a temporal priority indicator. A means (38) is provided for determining the priority (lea time indicator.
Patent CA-2305591-A1 (CA)
Title: Safety separation system
Inventor: LANGENFELD CHRISTOPHER C
IPC: A61G5/04
Filed: 1998-10-08
Abstract: A safety mechanism for a personal vehicle that provides for separation of the motion of a body support from a ground contacting assembly of the vehicle in case of accident. In one embodiment, the body support is attached to the ground contacting module via a slide mechanism that permits the body support to continue upright motion despite overturning of the ground contacting assembly in order to prevent injury to the passenger. Another embodiment provides for coupling of the body support or the ground contacting assembly via either a real or virtual pivot located above the respective centers of mass of the body support and ground contacting assembly.
Patent CA-2305683-A1 (CA)
Inventor: HEDLEY MARY LYNNE
IPC: A61K48/00
Filed: 1998-10-09
Abstract: L'invention concerne des peptides immunogènes issus de la protéine HPV E7 du type 16 qui comprennent des épitopes chevauchants restreints de la cellule T de classe I. L'invention concerne également des procédés qui permettent d'administrer à un mammifère hôte des molécules d'ADN codant ces peptides.
Patent CA-2310237-A1 (CA)
Inventor: EDWARDS JAMES R
IPC: F02M25/06
Filed: 1998-02-09
Abstract: An apparatus (20) for the treatment of gases in a positive crankcase ventilation (PCV) system, in an internal combustion engine, is provided with a housing (25) defining a gas treatment chamber (70). At least one gas filtering medium is disposed in the chamber (70), and the gases from the engine crankcase are passed through the gas filtering medium in the chamber (70), before the gases are routed into the air intake portion (67) of the engine. In addition, the gases, after passage through the gas filtering medium, are passed through an ionization device (55).
Patent CA-2310826-A1 (CA)
Inventor: YOSHIDA HIROMITSU
IPC: A61K31/415
Filed: 1998-11-16
Abstract: A soft-pellet drug suitable for inhalation, which is easily handleable in pharmaceutical preparation, does not give the feeling of irritation to a taker, and permits the control of drug particle size distribution at inhalation. The soft-pellet drug can be prepared by dissolving or suspending a medicinal compound having self-agglomerability in a fluid containing a sugar such as lactose, drying the obtained solution or suspension, pulverising the residue of the drying, and shaping the obtained powdery mixture into soft pellets having a mean particle diameter of 100 µm to 1 mm by means of tumbling in a drum tumbler or the like.
Patent CA-2311251-A1 (CA)
Inventor: OSTENDORF WARD WILLIAM
IPC: D21F1/10
Filed: 1998-12-07
Abstract: A papermaking belt comprises a sheet side and a back side opposed thereto, wherein the sheet side is textured and comprises photosensitive resin, the sheet side imparting structure to paper made thereon during papermaking, and wherein the papermaking belts impermeable.
Patent CA-2312101-A1 (CA)
Title: In-service detection of corrosion in multi-layer structure using the lift-off point of intersection
Inventor: GIGUERE SYLVAIN R
IPC: G01N27/90
Filed: 2000-06-22
Abstract: A method for the detection and the characterization of corrosion in multi-layer metallic structures using a pulsed eddy current technique. For this technique, a coil (or coils) is used both as field source (driven by a square wave voltage-controlled excitation), and/or as field sensor (measuring a transient response). The field sensor allows the capture of information about the condition of the area of the structure under inspection. The ability of this technique to detect corrosion hinges on the use of a transient response feature (i.e., Lift-off Point of Intersection) to infer the presence of material loss. With the help of a calibration standard, the Lift-off Point of Intersection provides the ability to quantify material loss in multi-layered structures. The results obtained with this method are independent of lift-off variations inherent to field inspections (i.e., changes in distance between the transducer and test object).
Patent CA-2315086-A1 (CA)
Inventor: KOO JAYOUNG
IPC: C21D1/02
Filed: 1998-06-18
Abstract: An ultra-high strength, weldable, low alloy, dual phase steel with excellent cryogenic temperature toughness in the base plate and in the heat affected zone (HAZ) when welded, having a tensile strength greater than 830 MPa (120 Ksi) and a microstructure comprising a ferrite phase (14) and a second phase of predominantly lath martensite and lower bainite (16), is prepared by heating a steel slab comprising iron and specified weight percentages of some or all of the additives, carbon, manganese, nickel, nitrogen, copper, chromium, molybdenum, silicon, niobium, vanadium, titanium, aluminum and boron; reducing the slab to form plate in one or more passes in a temperature range in which austenite recrystallizes; further reducing the plate in one or more passes in a temperature range below the austenite recrystallization temperature and above the Ar3 transformation temperature; finish rolling the plate between the Ar3 transformation temperature and the Ar1 transformation temperature; quenching the finish rolled plate to a suitable Quench Stop Temperature (QST); and stopping the quenching.
Patent CA-2320779-A1 (CA)
Inventor: ANDERSSON DICK
IPC: H04M7/00
Filed: 1999-02-12
Abstract: A packet-switched voice call directed to a mobile subscriber unit (MS/DTE) in a cellular communication network is processed by determining whether the mobile subscriber unit is in a circuit-switched mode of operation (23) and, if so, either forwarding the information in the packet-switched voice call to a destination other than the mobile subscriber unit or notifying the mobile subscriber unit (B, C, D, E) that the packet-switched voice call is waiting (51).
Patent CA-2321517-A1 (CA)
Title: Electrode a diffusion gazeuse et application aux processus electrochimiques catalyses
Inventor: NICOLAUS NATHALIE
IPC: C25B11/03
Filed: 1999-12-30
Abstract: Une électrode à diffusion gazeuse comprend un tissu (12) en fibres de carbone activé ayant une première face enrobée de matériau hydrophobe (14) et une deuxième face sur laquelle sont fixées directement des particules de catalyseur (16) dispersées de façon sensiblement homogène sur les fibres. L'électrode est utilisable dans une cellule électrochimique de pile à combustible à membrane échangeuse de protons, ou dans un réacteur électrochimique par exemple pour la fabrication de chlore-soude.
Patent CA-2329535-A1 (CA)
Title: A cleaning composition for printing presses
Inventor: HARTMANN THOMAS
IPC: B41F35/00
Filed: 2000-12-22
Abstract: A cleaning medium for use in cleaning printing forms includes either an acid solution having a pH of from 1 to 4 or a basic solution having a pH of from 10 to 14. A dispersible abrasive agent in a concentration of from 1 to 15 grams per 100 grams of the cleaning composition, a surfactant in a concentration of from 1 to 50 grams per 100 grams of the cleaning composition, an organic solvent in a concentration of from 10 to 50 grams per 100 grams of the cleaning composition, and additional water if needed are added to the acid or basic solution to form the cleaning medium. A cleaning medium in concentrate form is also provided.
Patent CA-2332059-A1 (CA)
Title: A filter assembly for use in a press mould
Inventor: BUTLIN TERENCE
IPC: B28B7/46
Filed: 2001-01-23
Abstract: A filter assembly for use in a press mould for moulding of cementitious products, the filter assembly including a fabric mounted in face to face contact with a support plate, perforated with a plurality of apertures arranged in a predetermined pattern to permit passage of fluid through the plate, the apertures defining imperforate zones therebetween, the fabric being knitted or woven to have a surface defined by a plurality of parallel ribs in face to face contact with the support plate, each pair of adjacent ribs defining therebetween opposed sides of a fluid channel which communicates with a number of said apertures and said imperforate zones, the ribs being knitted or woven to be sufficiently non-compressible in order to resist collapse of said fluid channels during compression of the cementitious product within said mould.
Patent CA-2333418-A1 (CA)
Inventor: SINGH PRABHAKAR
IPC: H01M8/24
Filed: 1999-05-26
Abstract: A container for fuel cells is made from an iron aluminide alloy. The contain er alloy preferably includes from about 13 to about 22 weight percent A1, from about 2 to about 8 weight percent Cr, from about 0.1 to about 4 weight perce nt M selected from Zr and Hf, from about 0.005 to about 0.5 weight percent B or  from about 0.001 to about 1 weight percent C, and the balance Fe and incidental impurities. The iron aluminide container alloy is extremely resistant to corrosion and metal loss when exposed to dual reducing and oxidizing atmospheres at elevated temperatures. The alloy is particularly useful for containment vessels for solid oxide fuel cells, as a replacement for stainless steel alloys which are currently used.
Patent CA-2337569-A1 (CA)
Title: Silico-acrylic compositions: method for their preparation and use
Inventor: VU NGOC CAN
IPC: C08F2/44
Filed: 2001-02-22
Abstract: Fluid silico-acrylic compositions, stable in the long term, polymerizable thermally and by radiatiion, by mechanism giving rise to free radicals, with a very low water (less than 1 %) and volatile solvent content, containing silica, a silane, and a multifunctional acrylic monomer, in which the silica is in the form of indivualised particles with an average diameter with the range 9 amd 100 nm, not interconnected by siloxane bonds, the silane is a vinyl silane with the formula (I) H2C=CH - Si(OR)3 (I) in which R represents a methyl or ethyl radical, and the multifunctional (meth)acrylic monomer is an alkoxylated (meth)acrylate, method for preparation and use for the development of anti-scratch transparent and uncoloured varnishes, obtained by polymerization giving rise to free radicals by radiation (UV, electron bundles) or thermally.
Patent CA-2339332-A1 (CA)
Inventor: PUPPIN GIUSEPPE
IPC: B29C48/12
Filed: 2001-03-02
Abstract: Useful hinged, structural members and profiles are disclosed comprising thermoplastic-reinforcing fabric composite materials. The hinged members and profiles have at least two rigid areas of thermoplastic-fabric composite joined on a common fabric through flexible, hinged regions. The hinged regions can comprise fabric free of any thermoplastic composite forming material or alternatively can be coated with flexible materials on one or both sides of the fabric. The invention extends to co-extrusion methods wherein thermoplastic materials are applied to pre-determined portions of the fabric under pressure so that the thermoplastic coats, and preferably wets, fibers of the reinforcing fabric. The structural members thus extruded are formed into useful lengths and readily converted into complex profiles by simple bending at the hinged regions. In this way, complex profiles that would be difficult to produce by conventional extrusion processes and bulky to ship can be easily made at the job site.
Patent CA-2339476-A1 (CA)
Title: Asphaltic compositions containing fibrous materials with improved resistance to temperature degradation
Inventor: HAGENS GRAHAM
IPC: C08L95/00
Filed: 2001-03-06
Abstract: A method is described for the modification of asphaltic compositions such that cellolosic fibers are not degraded by the asphalt at elevated temperatures. This is achieved by the addition of addition of certain inorganic or organic alkaline materials to the composition. As a further embodiment of the invention, a method is also described for the dispersion of cellulosic fibers in liquid asphalt in such a way as to obtain a thermally stable product with defined viscoelastic properties. This comprises blending the fibers with asphalt, fibers and alkaline additives under controlled mixing conditions such that the required viscometric specification is attained.
Patent CA-2343193-A1 (CA)
Inventor: HUFFMAN MARK A
IPC: C07D207/16
Filed: 1999-09-20
Abstract: L'invention concerne un procédé stéréoselectif amélioré pour réaliser une amination de réduction catalytique hétérogène entre 2-oxo-4-phénylbutyrate d'éthyle et alanylproline. Le procédé met en oeuvre de l'hydrogène, un catalyseur et un ou plusieurs additifs pour produire l'enalapril, inhibiteur de l'enzyme de conversion (ACE).