baber/WOPTO huggingface dataset:
Patent CA-2246116-A1 (CA)
Inventor: BADEJO IBRAHEEM T
IPC: C07C227/18
Filed: 1998-08-28
Abstract: This invention relates to a process for preparing 2,5-dianilinotere-phthalic or 2,5-dianilino-3,6-dihydroterephthalic acid, ester, or amide by (a) exposing to microwave radiation a reaction mixture of (i) a succinylsuccinic compound, (ii) about 2 to about 5 moles per mole of succinylsuccinic compound (a)(i) of an aniline, (iii) about 0.01 to about 2.5 equivalents, based on succinylsuccinic compound (a)(i), of an acid catalyst, and (iv) about 0.05 to about 10 parts by weight, per part by weight of succinylsuccinic compound (a)(i), of a solvent, thereby forming a 2,5-dianilino-3,6-dihydroterephthalic compound, (b) optionally, oxidizing the initially formed 2,5-dianilino-3,6-dihydro-terephthalic compound to form a corresponding 2,5-dianilinotere-phthalic compound.
Patent CA-2250940-A1 (CA)
Title: Prevailing torque clip for thin wall panel
Inventor: DANBY MICHAEL R
IPC: F16B37/04
Filed: 1998-11-05
Abstract: A prevailing torque clip (100) is provided that has a head portion (4) having a frusto-conical projection (10) having an aperture (6) therethrough that is provided preferably with diametrical opposed helical thread forms (8) and (8') that are operative to threadingly engage threads of a threaded member rotationally advanced therethrough. Head portion (4) includes a pair of resilient arms (12) and (12') that end in respective free-ends (9) and (9') that are operative to engage the threads of the threaded member and cooperate with thread forms (8) and (8') to prevent loosening thereof. Clip (100) is adapted to prevent rattle when used to secure an object to thin wall panel by being provided with at least one pair of tabs (16) and (16') that are operative to elevate clip (100) from a panel to which it is being secured sufficiently to ensure that the portion of arms (12) and (12') that are in close proximity to projection (10) are positioned within the panel opening into which arms (12) and (12') are received.
Patent CA-2250950-A1 (CA)
Title: Method and device for designing the surface of rearview mirror for vehicle
Inventor: LI SHIQING
IPC: G02B26/08
Filed: 1996-04-09
Abstract: The present invention relates to a method for designing the surface of rearview mirror for vehicle, which may effect wide-view and blindspot-free. The method includes: establishing the simulating models of driver's eye, the rearview mirror and the rearview-field; finding the optical relation between the surface shape of said rearview mirror and the driver's view-area by testing with the aid of a reflector having deformable surface shape; and determining the rearview mirror surface shape according to the result of said test. The present invention further relates to an algorithm for computing surface shape of the rearview mirror by simulating optical relation of driver's eye, the mirror and the rearview-field. The present invention also relates to a reflector means having deformable surface and used to above test. Said means comprises a plurality of mirror units, these mirror units being independent, and their spatial positions being adjusted.
Patent CA-2256398-A1 (CA)
Title: Fireproofing agent for particle or fibre boards
Inventor: SCHMIDT HUBERT F
IPC: B27K3/32
Filed: 1997-05-28
Abstract: The invention concerns a fireproofing agent which can be applied to boards or shaped parts of particles or fibres, obtained from wood or components of annual plants, in order to render them fireproof. The fireproofing agent according to the invention contains between 65 and 85, preferably 74, parts by weight ammonium sulphate, between 10 and 25, preferably 19, parts by weight borax and between 4 and 10, preferably 7, parts by weight trisodiumphosphate.  In addition, between 0.5 and 2 parts by weight, preferably 1 part by weight, sodium metasilicate can be added. The invention further concerns a method of fireproofing boards or shaped parts of this type. According to this method, the particles or fibres are first impregnated with a solution of the fireproofing agent according to the invention, are then dried to a moisture content of between approximately 1 % and approximately 12 %, preferably between 1 and 4 %, are subsequently glued with a binder, combined to form pressed mats, and finally compressed to form boards or shaped parts.
Patent CA-2257822-A1 (CA)
Title: Infectious papillomavirus pseudoviral particles
Inventor: SCHILLER JOHN T
IPC: A61K48/00
Filed: 1997-07-14
Abstract: The invention provides an infectious papillomavirus pseudoviral particle useful in gene transfer comprising: (a) a papillomavirus vector DNA which comprises an E2 binding site and an expression cassette comprising a gene and a sequence controlling expression of said gene; and (b) a papillomavirus capsid which comprises L1 and L2 strutural proteins, such that said capsid encapsidates said vector DNA, wherein said gene is derived from a first biological species and said L1 structural protein is derived from a second biological species and said first biological species is different from said second biological species.
Patent CA-2258099-A1 (CA)
Title: Preparations a base d'insuline contenant des glucides
Inventor: KIMER LONE LOGSTRUP
IPC: A61K9/00
Filed: 1997-06-19
Abstract: Préparations à base d'insuline présentant une stabilité physique supérieure et contenant de l'insuline humaine, soit dissoute, soit précipitée, ou un de ses analogues ou dérivés, ainsi qu'un glucide soluble dans l'eau, réduit ou non réducteur, contenant au moins quatre atomes de carbone dans sa structure principale, ou un dérivé non réducteur soluble dans l'eau d'ester ou d'éther d'un glucide ou d'un glucide réduit contenant au moins quatre atomes de carbone dans sa structure principale. L'invention concerne également des mélanges de ces préparations.
Patent CA-2262355-A1 (CA)
Title: Protection of gas communication in an electrochemical sensor
Inventor: MALLORY JOHN
IPC: G01N27/49
Filed: 1999-02-23
Abstract: An electrochemical sensor for detection of a gas in an atmosphere containing the gas. The sensor has a housing having an electrochemical gas sensor with an electrolyte and at least two electrodes, one electrode being a gas sensing electrode. The housing has an orifice between the sensing electrode and the atmosphere for transmission of gas from the atmosphere to the sensing electrode, the orifice being protected by a hydrophobic membrane, and connected to at least two radial channels extending from the orifice. Each of the radial channels is connected to a common channel, such that gas communication from the atmosphere through the orifice to the sensing electrode is through the common channel and the radial channels, in addition to the covering membrane if the membrane is gas permeable.
Patent CA-2263019-A1 (CA)
Title: Tole dotee d'un revetement d'aluminium resistant a la fissuration
Inventor: MAREUSE DIDIER
IPC: C23C2/12
Filed: 1999-02-23
Abstract: Le revêtement se subdivise en deux couches : une couche interne (7) composée essentiellement d'alliages fer-aluminium-silicum, et une couche externe (8), plus épaisse, composée essentiellement d'une phase à base d'aluminium et accessoirement d'autres phases sous forme d'aiguilles ou de lamelles allongées (9); selon l'invention, la projection de la longueur de toutes lesdites aiguilles ou lamelles (9) sur une direction perpendiculaire au plan de ladite couche externe (8) est strictement inférieure à l'épaisseur de cette couche (8). Cette structure, obtenue par traitement thermique de la couche externe à une température comprise entre 570.degree.C et à 660.degree.C , notamment pendant moins de 15 secondes, diminue sensiblement les risques de fissuration.
Patent CA-2266836-A1 (CA)
Title: Method for determining propagation delays and method for detecting processor-clock drift in a communications system
Inventor: LIAN BING-ZHONG
IPC: H04B7/26
Filed: 1999-03-24
Abstract: A method of determining propagation-delay changes in the send-and-receive transmission paths connecting two communications units (A, B) in a communications system employs a multi-stage process in which, in first stage - in which it assumed that the propagation delays are equal - approximations (tp1*, tp2*) of the propagation delays (tp1, tp2) are derived in the two units, a value (dt) of the phase difference between the two clocks driving the respective processors of the two units is derived and initial values of the propagation delays are calculated using the approximations and the phase-difference value. Subsequently, in one or more further stages further approximations (tp1*, tp2*) of the propagation delays (tp1, tp2) are derived and, using these further approximations and the phase-difference value (dt), further values of propagation delay are calculated, these being taken as the actual new propagation-delay values. This process continues in a cyclical fashion, with changes of propagation delay being detectable by simple comparison of successive corresponding delay values. Also disclosed is a method of detecting drift between the two processor clocks, in which the method just described is basically followed and the propagation-delay approximations are monitored to detect opposite changes in the pair of approximations. When opposite changes are detected, the rate of change is determined and, if it is below a predetermined rate, it is concluded that clock drift has occurred. In a preferred embodiment, once drift has been established an actual change measured between successive approximations is used to adjust the initial value of the clock phase difference and thereafter each new updated value, thereby compensating for the drift.
Patent CA-2268991-A1 (CA)
Title: Advanced diagnostic viewer
Inventor: ARGIRO VINCENT J
IPC: G16H30/20
Filed: 1997-10-15
Abstract: A computerized system and method for viewing a set of voxel data on a display device attached to a computer is disclosed. In one embodiment of the invention, the computerized system has a number of different components. A retrieve data set component retrieves the set of voxel data, the set of voxel data having already been acquired in accordance with acquisition parameters of a protocol. A protocol selector component selects the protocol in accordance with the set of voxel data retrieved, the protocol including preset adjustments for the volume-rendering of the data. An image gallery component displays one or more images of the set of voxel data in accordance with the preset adjustments of the protocol. An examination viewer component permits the changing of the preset adjustments of the protocol as to a particular image selected within the image gallery component. A report generator and viewer component generates a report based on snag shots of images taken within the examination viewer component. A print and post component prints the generated report to a printer operatively coupled to the computer, and/or posts the report as an HTML file to a web browser for retrieval over the Internet or an intranet.
Patent CA-2270213-A1 (CA)
Title: Hand-held computer and communications apparatus
Inventor: RIDDIFORD MARTIN PHILIP
IPC: G06F3/02
Filed: 1997-10-28
Abstract: Combined computer and communications apparatus is described which is constructed with a two-part casing, the parts (1, 2) being hinged together.  When folded together, the entire unit can act like a mobile phone (Fig. 1) and when unfolded (Fig. 2) a keyboard (5) is exposed enabling it to act as a palmtop computer. In accordance with the invention, the keyboard (5) is folded about a line running substantially perpendicular to the direction of the rows of keys. One casing portion (1) may have a window (4) through which a screen (3) mounted on the other casing portion (2) may be viewed when the unit is folded.
Patent CA-2270684-A1 (CA)
Title: Roofing material with granular surface
Inventor: ZICKELL THOMAS
IPC: E04D1/12
Filed: 1999-05-04
Abstract: A roofing membrane material is disclosed. The material is characterized in that it includes a rubberized asphalt layer and a polyethylene reinforcement layer having a polyurethane layer on its upper surface. The polyurethane layer includes embedded grit to provide a high friction surface offering good traction.
Patent CA-2271992-A1 (CA)
Title: Oxidation dyeing composition for keratin fibres comprising 2-chloro 6-methyl 3-aminophenol and two oxidation bases, and dyeing method
Inventor: AUDOUSSET MARIE-PASCALE
IPC: A61K8/34
Filed: 1998-07-16
Abstract: The subject-matter of the present invention is a composition for the oxidation dyeing of keratinous fibres, in particular of human keratinous fibres, such as hair, comprising 2-chloro-6-methyl-3-aminophenol as coupler, in combination with at least two oxidation bases which are different from one another, and the dyeing process employing this composition with an oxidizing agent.
Patent CA-2273109-A1 (CA)
Inventor: NICKEL RICHARD A
IPC: H02G11/02
Filed: 1999-05-25
Abstract: The coiling, storage, moving and uncoiling of electrical cords, ropes cables, hoses, (generic cord) is fraught with difficulty in terms of tangling and lengthy time spent on unravelling before usage. In this invention a tool entitled "Tidy Guide" has been devised that attaches to the cord and enables the user to coil, transport, store, secure and unravel the cord tangle free. The device enables each coil to be placed on the previous coil single file within a guide. The guide looks like a tuning fork. A snap ring secures the coil at the open end of the guide.      The apparatus attaches to the cord by way of a longitudinal slot extending from the bottom of the guide upwards. A slotted cap screws on to the bottom and a notch in the cap forces the cord against the inside wall of the slot thus forming a friction fit.      The cord threads through to the inside base of the fork. For electrical cords the device is best located near the mail plug of the cord. For other cords the location can vary.      The tool as illustrated is for after market application and it is conceivable that the tool could neatly be fused or otherwise incorporated on to an electrical or other cord at time of manufacturing.      The tool could be designed for different lengths diameters and types of cord. As well the construction of the device could well be a metal such as aluminium, reinforced plastics i.e. PVC, urethane, nylon, fibreglass and in :some cases wood. The device could be cast or crafted with appropriate rigid tubing.
Patent CA-2273296-A1 (CA)
Title: Patient transfer device
Inventor: GRIGGS GERALD T
IPC: A61G7/10
Filed: 1999-05-27
Abstract: Disclosed herein is a patient transfer device comprising lifting arrangement positionable adjacent a patient and movable between a first position and a second position, and support arrangement for supporting the patient. The support arrangement is attachable to the lifting arrangement along a number of anchor locations thereon, the anchor locations including a pair of central anchor locations, a first pair of outer anchor locations on one side of the pair of central anchor locations and a second pair of outer anchor locations on an opposite side of the central pair of anchor locations; the support arrangement including a pair of central contact locations near a central location on the body of the patient, a first pair of outer contact locations on one side of the pair of central contact locations and a second pair of outer contact locations on an opposite side of the central pair of contact locations. The support arrangement is operable with the lifting arrangement for joining each of the anchor locations to a corresponding one of the contact locations, so as to transfer the patient between an inclined position and an upright orientation when the lifting arrangement moves between the first and second positions.
Patent CA-2274808-A1 (CA)
Title: Method and device for conveying individually held products
Inventor: MAEDER CARL C
IPC: B65H29/60
Filed: 1997-11-26
Abstract: According to the inventive method of conveyance of individually held products (3) in a network of conveyor segments (A, B), a holding element (4) is allocated to each product (3).      Said holding element (4) holds the product (3) during the entire predetermined path of conveyance by transporting it along different conveyor segments (A, B). Each holding element (4) has at least one first coupling member (1), which enables the holding element (4) to be coupled to conveyor elements having two coupling members (2) and moving along a specific conveyor segment (A, B) or which can be connected to guides extending along the conveyor segments. Control devices (a, b) are provided at delivery points (U) by means of which the holding elements (4) can be decoupled from the conveyor elements or the guides of a first conveyor segment (A) and the holding elements (4) can be coupled to the conveyor elements or guides of a second conveyor segment (B).
Patent CA-2274911-A1 (CA)
Title: Procede pour la fabrication d'aerogels durablement hydrophobes modifies organiquement
Inventor: SCHWERTFEGER FRITZ
IPC: B01J13/00
Filed: 1997-11-26
Abstract: L'invention concerne un procédé pour la fabrication d'aérogels modifiés organiquement, comportant des groupes de surface durablement hydrophobes, dans lequel (a) on prend un lyogel, (b) on lave ce lyogel avec un solvant organique, (c) on silyle en surface le gel obtenu à l'étape (b), et (d) on sèche le gel silylé en surface obtenu à l'étape (c). Ce procédé est caractérisé en ce que l'on utilise, lors de l'étape (c), comme agent de silylation un disiloxane de la formule (I) R¿3?Si-O-SiR¿3?, dans laquelle les restes R, qui sont identiques ou différents, représentent, indépendamment l'un de l'autre, un atome d'hydrogène ou bien un reste aromatique ou hétéroaromatique non réactif, organique, linéaire, ramifié, cyclique, saturé ou insaturé.
Patent CA-2280997-A1 (CA)
Title: Dna-based transposon system for the introduction of nucleic acid into dna of a cell
Inventor: IVICS ZOLTAN
IPC: C12N15/90
Filed: 1998-03-11
Abstract: This invention relates to a system for introducing nucleic acid into the DNA of a cell. The system includes the use of a member of the SB family of transposases (SB) or nucleic acid encoding the transposase and a nucleic acid fragment that includes a nucleic acid sequence with flanking inverted repeats. The transposase recognizes at least a portion of an inverted repeats and incorporates the nucleic acid sequence into the DNA. Methods for use of this system are discussed.
Patent CA-2281197-A1 (CA)
Title: Active component delivery system comprising a coating structure on which is found a salicylic acid derivative-based composition, and its uses
Inventor: AYACHE LILIANE
IPC: A61K8/368
Filed: 1999-09-01
Abstract: PURPOSE: An activator transmitting system containing salicylic acid is provided, which can be used for treating all of skin disease or cosmetic purpose in relation with the fact that salicylic acid has activation as a keratin solvent and/or an antiseptic and/or anti-inflammation agent. CONSTITUTION: The activator transmitting system contains a composition based on a salicylic acid derivative, desirably 5-(n-alkanoyl) salicylic acid on a film structure. In case of treating pimples or black heads, 0.5g of 5-(n-octanoyl) salicylic acid is added, and for treating moles or psoriasis, 1g of 5-(n-decanoyl) salicylic acid is added.
Patent CA-2285007-A1 (CA)
Title: Method for producing shaped bodies for lithium ion batteries
Inventor: BAUER STEPHAN
IPC: H01M50/423
Filed: 1998-03-25
Abstract: The invention relates to a method for producing shaped bodies, preferably for a film-like shaped body, comprising the following steps: I) compounding and melt extrusion of a mixture (I) comprising a mixture (II) containing a) 1 to 95 wt. % of at least a pigment (III) with a primary particle size ranging from 5 nm to 20mm, selected from the group consisting of one electrochemically inert solid (IIIa), of a compound (IIIb) capable of giving off lithium ions when charged, and a compound (IIIc), capable of receiving lithium ions when charged, and a mixture of solid (IIIa) with compounds (IIIb) or compound (IIIc), b) 5 to 99 wt. % of at least one polymer binding agent (IV), and c) 0 to 200 wt. % of at least one softening agent (V) in relation to the overall amount of constituents a) and b), wherein the weight percentage of mixture (II) in mixture (I) ranges from 1 to 100 wt. %, and excluding mixtures (I) comprising mixtures (II) containing a copolymer consisting of vinylidene fluoride (Vdf) and hexafluoropropylene (HFP) with a HFP content ranging from 8 to 25 wt. % as a polymer binding agent (IV) and a compound as a softening agent (V) which is selected from the group consisting of dibutyl phthalate, dimethyl phthalate, diethyl phthalate, tris(butoxy)ethyl phosphate, propylene carbonate, ethylene carbonate, trimethyl trimellitate and mixtures thereof.
Patent CA-2285489-A1 (CA)
Inventor: BAHMAN MIR DAVOOD
IPC: C10G11/02
Filed: 1999-10-07
Abstract: The invention consists of a method of catalytic cracking of fuel oil using a catalyst comprised of Mg, Al, Si, P, S, Cl, K, Ca, Ti, Fe, Cu, Zn, Mo, Sn, Pb and a mixture of hydrocarbon gas such as methane, ethane, propane, and butane in a heated environment allows the cracking of heavy hydrocarbons in fuel oil at a low temperature and economical cost.
Patent CA-2286665-A1 (CA)
Title: Surgical stent having a streamlined contour
Inventor: FRANTZEN JOHN J
IPC: A61F2/06
Filed: 1998-04-07
Abstract: A surgical stent (10) is provided which is formed of a plurality of stent segments (40) having a streamlined contour. Each stent segment (40) includes an outer surface (42) spaced from an inner surface (44). The inner surface (44) is bordered by inner edges (54), (56) and the outer surface (42) is bordered by outer edges (50), (52). The outer edges (50), (52) have a contour defined by outer curves (64), (66) and the inner edges (54), (56) have a contour defined by inner curves (60), (62). Radii of curvature for the inner curves (70), (72) are greater than radii of curvature for the outer curves (64), (66). The inner surface (44) is thus streamlined for passage of blood/bodily fluid (B) adjacent the inner surface (44) and the outer surface (42) is particularly configured for maximum adherence without irritation to an inner surface (S) of a body lumen (L), such as an artery. The surfaces (42), (44) of the stent segment (40) are provided with a surface finish of sufficient smoothness to further enhance blood/fluid flow (B) adjacent the stent segment (40) and to minimize irritation of tissues forming the inner surface (S) of the body lumen (L) in which the surgical stent (10) is implanted.
Patent CA-2287996-A1 (CA)
Title: Dewatering of sewage sludge
Inventor: HUNTER DEWEY W
IPC: C02F11/147
Filed: 1998-04-30
Abstract: A sludge treatment plant in which sludge is flocculated and then dewatered to form a cake and a reject liquor is modified by recycling 3 to 40 % of the reject liquor into the sludge immediately before the dewatering process.