baber/WOPTO huggingface dataset:
Patent CA-2302711-A1 (CA)
Title: Phthalonitrile thermoset polymers and composites cured with halogen-containing aromatic amine curing agents
Inventor: SASTRI SATYA B
IPC: C08J5/24
Filed: 1998-09-30
Abstract: Phthalonitrile thermoset polymers and composites having flame resistance are formed by combining a phthalonitrile monomer in the melt stage with a halogencontaining aromatic amine curing agent. The halogen-containing aromatic amine curing agent is selected from the group consisting of aromatic amine curing agents having the general formula: NH2-(Ar2O-)y Ar1-X-Ar1 (-OAr2)y-NH2, wherein Ar1 and Ar2 are substituted or unsubstituded aromatic groups, y is 0 or greater, and X is -C(CF3)2- and aromatic amine curing agents having the general formula: NH2-(Ar4O-)u Ar3-Z-Ar3 (-OAr4)u-NH2, wherein Z is a connecting bond or a linking group other than oxygen or -C(CF3)2-, u is 0 or greater, and Ar3 and Ar4 are aromatic groups and wherein either Ar3 or Ar4 or both Ar3 and Ar4 are substituted with at least one halogen atom or halosubstituted alkyl group.
Patent CA-2303233-A1 (CA)
Inventor: HARRISON PAUL W
IPC: C03C23/00
Filed: 1998-09-08
Abstract: A method of laser marking metals, plastics, ceramic materials, glazes, glass ceramics, and glasses of any desired form, which comprises applying to the material to be marked a variable thickness layer of marking material containing energy absorbing enhancers then irradiating said layer with a laser or diode based energy source such that the radiation is directed onto said layer in accordance with the form of the marking to be applied, and using a laser or diode based energy source of a wavelength which is sufficiently absorbed by the marking material so as to create a bonding of the marking material to the surface of the workpiece at the irradiated areas.
Patent CA-2303304-A1 (CA)
Inventor: RANGANATHAN SRIDHAR
IPC: A61F5/44
Filed: 1998-10-08
Abstract: Un article absorbant caractéristique comporte une partie centrale absorbante à couches absorbantes multiples, les couches absorbantes interagissant de manière à transférer de préférence le liquide absorbé dans une couche d'imbibition haute saturation désignée. Le fait que le liquide se trouve dans cette couche d'imbibition permet d'accroître le potentiel de cette couche à déplacer le liquide par capillarité en raison du taux de saturation élevé et d'une quantité croissante de liquide disponible. Dans des aspects particuliers, au moins une zone de couche primaire peut présenter une structure hétérogène. Dans des configurations supplémentaires, la zone de couche primaire peut comporter deux ou davantage de sous-couches.
Patent CA-2305381-A1 (CA)
Title: Signal processor with local signal behavior
Inventor: IGNJATOVIC ALEKSANDAR
IPC: H03M1/06
Filed: 1998-10-02
Abstract: A new signal processing method and a signal processing engine which can achieve extremely fast responsiveness to instantaneous changes in the behavior of the signal, and maintain the accuracy of standard harmonic methods. The signal processing engine unifies Nyquist's theorem and Taylor's theorem by means of polynomial approximations using linear operators, e.g. differential and integral operators. The signal processing engine samples the signal at a rate which is n times the band limit of the signal, where n is greater than 2, i.e. greater than the Nyquist rate, produces a digital representation of the sampled signal, and calculates the outputs of linear operators applied to polynomial approximations of the sampled signal. A switch mode power amplifier which incorporates the signal processing method and engine of the overcomes shortcomings of existing switching amplifiers, e.g. class "D" amplifiers.  These shortcomings include: poor handling of highly reactive complex loads (e.g., speakers), usually requiring a duty cycle or feed-back adjustment with the change of the load; poor performance in the upper part of the bandwidth, including numerous switching artifacts; and high distortion, especially in the upper part of the spectrum. These shortcomings are all overcome using the local signal behavior signal processing method and engine of the invention.
Patent CA-2305795-A1 (CA)
Title: Method for increasing light olefin yield by conversion of a heavy hydrocarbon fraction of a product to light olefins
Inventor: VAUGHN STEPHEN N
IPC: B01J29/85
Filed: 1998-09-25
Abstract: A method for increasing light olefin yield during conversion of oxygenates to olefins comprising: contacting an oxygenate feed in a first reactor with a non-zeolitic molecular sieve catalyst under first conditions effective to produce a first product comprising light olefins and a heavy hydrocarbon fraction; separating said light olefins from said heavy hydrocarbon fraction; feeding said heavy hydrocarbon fraction to a second reactor, and subjecting said heavy hydrocarbon fraction in said second reactor to second conditions effective to convert at least a portion of said heavy hydrocarbons to light olefins.
Patent CA-2306940-A1 (CA)
Title: High pozzolan cement mixtures
Inventor: LU RUNHAI
IPC: C04B22/12
Filed: 1999-07-30
Abstract: A cementitious mixture comprises a hydraulic cement; greater than about 10 % by weight of a pozzolanic cement replacement selected from fly ash, slag, natural pozzolans, and mixtures thereof, based on the weight of said hydraulic cement and cement replacement; and a compatibilizing admixture, wherein the compatibilizing admixture comprises a compatibilizing derivatized polycarboxylate polymer dispersant capable of acting as a water reducer, in combination with an accelerator. The derivatized polycarboxylate dispersant, alone or in combination with other derivatized polycarboxylate dispersants, is a polymer comprising units derived from at least one of a substituted carboxylic acid monomer and a substituted ethylenically unsaturated monomer, at least one of an N-polyoxyalkylene maleimide and a condensation product of an unsubstituted carboxylic acid monomer and an alkoxypolyoxyalkylene primary amine substituted carboxylic acid monomer, and optionally including an unsaturated hydrocarbon. The derivatized polycarboxylate dispersant provides for a longer shelf life dispersant, improved dispersability of cementitious mixtures, water reduction in cementitious mixtures, and is an effective dispersant in high pozzolan replaced cementitious mixtures.
Patent CA-2306944-A1 (CA)
Title: Outil a percer directionnel
Inventor: ESPOSITO GIUSEPPE
IPC: E21B7/28
Filed: 1998-10-09
Abstract: La présente invention concerne un dispositif rotatif à percussion permettant un percement directionnel dans la roche. Ce dispositif comporte, d'une part un corps rotatif (15) sensiblement cylindrique dans lequel est logé un percuteur, et d'autre part une tête tronconique (2) montée excentrique sur la face antérieure du corps. La face de petit diamètre (3) de la tête est celle qui est la plus proche du corps. L'axe de la tête (6) et l'axe du corps (5) sont parallèles et décalés. La face antérieure (4) de la tête, en forme de ciseau, présente au moins un plan oblique (11) descendant vers l'avant dans le même sens que le décalage de l'axe de la tête par rapport à l'axe du corps.
Patent CA-2307536-A1 (CA)
Title: Fall restraint anchor
Inventor: GUENETTE RICHARD M
IPC: A62B1/08
Filed: 2000-05-04
Abstract: A fall restraint which has an anchor with a rail that can be secured to and pass about the anchor to allow a full 360° movement. A carriage is secured to the rail and a cable secured between the carriage and a worker. The device is particularly suitable for use on a tank with a vent to provide the anchor.
Patent CA-2308065-A1 (CA)
Title: Process for producing arachidonic acid-containing lipids and dihomo-.gamma.-linolenic acid-containing lipids
Inventor: AKIMOTO KENGO
IPC: C12P7/64
Filed: 1999-08-27
Abstract: A process for producing lipids containing arachidonic acid comprising culturing a microorganism in which w3 desaturase activity has been decreased or is lacking at a temperature lower than the optimum growth temperature from the start of culturing or after culturing at the optimum growth temperature, said microorganism being obtained by the mutation treatment of a microorganism capable of producing arachidonic acid and belonging to the genus Mortierella and the like; and then recovering lipids containing arachidonic acid from the culture.
Patent CA-2308392-A1 (CA)
Title: Systeme de detonation a induction magnetique controlee permettant l'amorcage d'un materiau apte a la detonation
Inventor: GAVRILVIC MIKE
IPC: F42B3/188
Filed: 1998-11-06
Abstract: La présente invention concerne un système de détonation à induction électromagnétique contrôlée permettant d'amorcer un matériau apte à la détonation (10), et comprenant un module de charge radio automatisé (ARCH) (18) pouvant être relié à un détonateur électrique (24), un module transducteur (14) destiné à fournir par induction électromagnétique la puissance opérationnelle nécessaire au module ARCH (18), et une télécommande (12) qui envoie des instructions au module transducteur (14) depuis un emplacement éloigné du détonateur (24). Au terme d'une séquence d'armement, le module transducteur (14) génère un champ électromagnétique qui est collecté par une bobine dans le module ARCH (18) et utilisé pour alimenter le module ARCH (18) et fournir un courant de détonation au détonateur (24). Le module transducteur (14), ou au moins une bobine de celui-ci produisant le champ électromagnétique, est supporté sur ou dans un bourroir (16) qui sert également de noyau magnétique d'électro-aimant pour confiner le flux magnétique devant être collecté par le module ARCH (18). Des systèmes de contrôle d'accès et d'interconnexion à niveaux multiples interviennent entre la télécommande (12), le module transducteur (14) et le module ARCH (18) afin de réduire la probabilité d'un amorçage accidentel du détonateur (24).
Patent CA-2308562-A1 (CA)
Title: Method of making an acrylic article
Inventor: TINKER PAUL
IPC: B29C51/14
Filed: 1998-11-05
Abstract: A method of making an article of sanitaryware from a composite of a facing sheet (10) of an acrylic material and a backing sheet (14) of a thermoplastic material other than an acrylic material, includes the steps of heating each of the facing sheet (10) and the backing sheet (14) to a temperature within the vacuum forming range; bringing the facing sheet (10) and the backing sheet (14) together between a nip (18) between a first roller (20) and a second roller (22) to exclude any gasses trapped or formed between the two sheets (10, 14) and to bond the two sheets (10, 14) together to form the composite;  and placing the composite in a vacuum forming mould and applying suitable conditions of pressure to mould the article from the composite.
Patent CA-2309161-A1 (CA)
Title: Method of manufacturing a reinforced oblong concrete product for longitudinal load-bearing purposes, and a driven pile
Inventor: PETERS PETER CORNELIS
IPC: E02D5/58
Filed: 1998-11-06
Abstract: The invention relates to a method of manufacturing a reinforced oblong concrete product for longitudinal load-bearing purposes, in particular a driving pile. According to the present invention reinforcing fibres are used to prevent break-up of the concrete dueto radial forces which occur during driving, and the concrete composition is provided with said reinforcing fibres before the concrete composition is applied to the reinforcing wire. This method reduces the amount of heavy labour and cost. The invention also relates to a driving pile comprising reinforcing fibres.
Patent CA-2309998-A1 (CA)
Inventor: MAKSIMOW ALEXANDER
IPC: D04H1/54
Filed: 1998-11-16
Abstract: The invention relates to a method for producing a strip of absorbent, rollable cellulose fibre material (100) which is suitable for use in the hygiene sector. A fibre layer consisting of cellulose fibres is placed on a base layer (8) and pre-compressed to form a loose non-woven fabric which is introduced into a gap between a pair of calender rollers (6.1, 6.2) and which is used to produce a pattern of dotted or lined print areas (17) in which the fibres (1) are disposed in a random manner and are compressed against each other at a pressure ranging from 150 to 600 MPa, resulting in a non-solvent fusion of said fibres and the production of a strip of fibre material (100) with an imprinted pattern.
Patent CA-2311198-A1 (CA)
Title: Sampler and method of dispensing and cooling a fluid
Inventor: ZELLER ROBERT
IPC: G01N1/14
Filed: 2000-06-12
Abstract: The sampler comprises a vessel assembly (2) for taking, conducting, and storing a fluid sample to be stored at a predeterminable storage temperature as well as a cooling assembly (3) thermally coupled to the vessel assembly (2) for cooling the fluid sample. The cooling assembly (3) has a first cooling volume (31), which encompasses the vessel assembly (2) and a second cooling volume (32), which jackets the vessel assembly (2).      To cool the fluid sample, the internal temperature of the vessel assembly is lowered by means of the cooling assembly (3) prior to and/or during the dispensing of the fluid sample, and the fluid is subsequently conducted or held in the vessel assembly (2).
Patent CA-2312581-A1 (CA)
Inventor: OGAWA KAZUHIRO
IPC: C22C19/05
Filed: 2000-06-27
Abstract: A heat resistant Ni base alloy comprises, on a mass% basis, 0.1% or less C, 2% or less Si, 2% or less Mn, 0.005% or less S, 10 to 25% Cr, 2.1 to less than 4.5% Al, 0.08% or less N, 0.001 to 1% in total of one or more elements of B: 0.03% or less, Zr: 0.2% or less and Hf: 0.8% or less, and 2.5 to 15% in total of one or more elements of Mo: 0.01 to 15% and W: 0.01 to 9%. The alloy is suitable as a material for a pipe used in ethylene cracking furnace.
Patent CA-2314132-A1 (CA)
Title: Illuminated sign
Inventor: DURBIN MARTIN J
IPC: G09F13/22
Filed: 1999-11-05
Abstract: An illuminated sign comprises a photoconductive plate and a series of light-emitting diodes of a type having a viewing angle of approximately 8° Being made from polycarbonate in a single piece, the photoconductive plate is inset from its back face, toward its front face but not through it, so as to define a series of indicia, each having a boundary. Each light-emitting diode is pressed into a recess opening at an outer periphery of the photo-conductive plate, between the front and back faces.      The recess orient the light-emitting diodes so that a part of the boundary of each of the indicia is disposed within the viewing angle of at least one of the light-emitting diodes and so that another part thereof is not disposed within the viewing angle of any of the light-emitting diodes. An opaque material covers the back face of the photoconductive plate, at least where the back face is visible through the front face thereof, except where the photoconductive plate is inset so as to define the indicia. A fluorescent material covers the indicia and is adapted to fluoresce at a color matching the color of light emitted by the light-emitting diodes when energized.
Patent CA-2316842-A1 (CA)
Title: A skateboard
Inventor: ATTEY GRAEME SCOTT
IPC: A63C17/01
Filed: 1998-12-30
Abstract: An in-line skateboard (10) includes a frame (18) located between aligned wheels (14, 16). The frame (18) is pivotally connected at (32) to a leading wheel (14) by means of a fork member (30) which extends from an axle (15) of the wheel (14). The pivotal connection (32) is disposed below the level of the axle (15).
Patent CA-2317930-A1 (CA)
Title: Pump designed for use on a container
Inventor: BONNINGUE PHILIPPE
IPC: F04B9/14
Filed: 2000-09-01
Abstract: Pump (10) has base (13) and telescopic assembly (30) defining pumping chamber (60). Telescopic assembly comprises outer sleeve (31) in which inner obtruding sleeve (32) slides. When outer sleeve is displaced to decrease volume of pumping chamber, assembly takes up dispensing configuration and obtruder closes filling orifice (21). When the outer sleeve is displaced to increase the pumping chamber volume the assembly takes up its filling configuration and the obtruder ceases to seal the filling orifice.
Patent CA-2318464-A1 (CA)
Inventor: GRUBER ROBERT D
IPC: B65G1/02
Filed: 1999-10-20
Abstract: A rack (10) is provided with shelves (14, 14a, 14b) that are well-secured as compared with shelves (14) of the prior art. The corners (6) of each shelf (14) are connected by a hook (76) on one member (26) dropped vertically down into a slot (78) of the other member (24), and, once the members (24, 26) are properly aligned with the hook (76) and slot (78), they are secured with a bolt (82, 88). Beams, such as roller beams (18), guide beams (30), and support beams (32, 34) are connected to the frame members (20, 22, 24, 26) by means of upwardly-projecting trees (46) on the frame members (20, 22, 24, 26), which include arms (50) that fit into holes (56) in the vertical legs (54) of the beams. Clips (60) may be used after the beams (30) are installed on the frame members (20, 22, 24, 26) to prevent the vertical legs (54) of the beams (30) from shifting, thereby further securing the beams (30) to the shelf (14).
Patent CA-2319313-A1 (CA)
Title: Monitor suspension system
Inventor: SULLIVAN THOMAS J III
IPC: A47B21/00
Filed: 1999-01-25
Abstract: A suspension system for suspending a computer or video monitor (201) beneath a work surface (102) includes a flexible harness (300) formed of plural straps which extend around the top, back and bottom of a monitor (201) to cradle the monitor in the harness (300). An adjustable gripping strap assembly (301d) is connected to the monitor (201) at its proximal end and includes a pivot assembly (400) for securing the monitor (201) to a bracket (307) including a pivot rod (402) on the underside of the work surface (102). The pivot assembly bracket (307) may be laterally adjustable to adjust the horizontal position of the monitor (201). Lateral suspension straps (301a and 301b) of the harness (300) may be connected to a fixed support on the underside of the work surface (102) or to opposed elongated angle adjustment arms (434) which are pivotally mounted on the underside of the work surface (102) and are adjustable with respect to spaced apart notched support brackets (436). Low profile or flat screen monitors (201f) may be supported by a shortened version of the harness or by a shallow pan shaped support member (601).
Patent CA-2321523-A1 (CA)
Inventor: BUEHLER JOHN D
IPC: A61K31/536
Filed: 1999-04-01
Abstract: The present invention provides improved oral dosage form formulations of efavirenz that are useful in the inhibition of human immunodeficiency virus (HIV), the prevention or treatment of infection by HIV, and in the treatment of the resulting acquired immune deficiency syndrome (AIDS). In particular, the present invention relates to compressed tablets or capsules comprising efavirenz that contain one or more disintegrants that enhance the dissolution rate of the efavirenz in the gastrointestinal tract thereby improving the rate and extent of absorption of efavirenz in the body. The present invention also relates to the process of making such tablets or capsules.
Patent CA-2323247-A1 (CA)
Title: Displacement based dynamic load monitor
Inventor: SCHOCH DANIEL A
IPC: B30B15/00
Filed: 2000-10-12
Abstract: An apparatus and method for monitoring the force severity of a mechanical press without utilizing a contact force sensor. The method continually computes values of dynamic deflection for the press being monitored and utilizes these values to compute load on the press at any point in time.
Patent CA-2324742-A1 (CA)
Title: Fastener retaining nosepiece for screwdriver
Inventor: HABERMEHL G LYLE
IPC: B25B23/00
Filed: 2000-10-26
Abstract: A screwdriver nosepiece comprising an open-sided tubular member having a wall circumferentially about a central passageway extending therethrough and open at both ends, the passageway including: a cylindrical guideway extending about an axis and adapted to receive a screw coaxially therein for rotation and driving of the screw axially through the guideway by a driver shaft, and a screw catch groove disposed axially along the guideway cut into the wall extending radially outwardly from the guideway and opening radially inwardly into the guideway to define a catch surface on the wall within the catch groove, a slotway axially along the guideway extending radially outwardly from the guideway entirely through the wall and of sufficient circumferential extent to permit entry of a screw radially into the guideway while maintaining the screw substantially parallel the axis, the catch groove located on the wall circumferentially proximate the slotway with the catch surface directed away from the slotway.
Patent CA-2325862-A1 (CA)
Inventor: QUAK EWALD
IPC: G06T13/20
Filed: 1998-12-29
Abstract: A method for representing time dependent geometric shapes and geometric structures in computer systems is presented. More specifically, the invention presents a method for describing such objects and their movement through a data structure with ordered geometric objects. These objects are described as any combination of points, curves and surfaces that are anchored to each other in a graph structure. Various methods of anchoring can be used, giving the method a high degree of flexibility. Animation is described as time dependency in the description of any part of the representation, including the definition of movement curves along which points move from an initial to a final position during a time interval. If parts of the data structure are repeated in the model, they will normally be described only once. Additional occurrences will be described by using a reference to the first occurrence and a transformation.
Patent CA-2326591-A1 (CA)
Title: Electrical machine
Inventor: SAMBATH HENG PHALLA
IPC: H02K5/173
Filed: 1999-04-06
Abstract: In an electrical machine such as electric motor or generator comprising a casing which contains rotatable components air direction means is provided and constructed and arranged to direct an air current over the exterior of the machine. The air direction means may be in form of a cowl which may be an extension of or secured to a fan housing.
Patent CA-2329892-A1 (CA)
Inventor: SHIMAKAWA KAZUHIRO
IPC: G06T3/00
Filed: 2000-12-29
Abstract: In a rendering processing system having a rendering memory for storing rendering pixel data generated by a rendering operation circuit and a display memory for storing the image data of a current frame read out from the rendering memory, the display memory stores only the pixel data read out from the rendering memory with prescribed information excluded therefrom. Thus, it is possible to decrease the storage capacity of the display memory and also reduce the time required for writing data into the display memory.
Patent CA-2332166-A1 (CA)
Title: Vulcanisable rubber mixes
Inventor: WEIDENHAUPT HERMANN-JOSEF
IPC: C08K5/17
Filed: 2001-01-25
Abstract: The present invention relates to vulcanisable rubber mixes which, apart from the rubbers, contain O,O-bis-(alkyl)-dithiophosphoric acid polysulfides and primary and/or secondary amines, which are characterised in that they may be vulcanised without release of nitrosamines with a high crosslink density and a high proportion of short sulfur bridges.