baber/WOPTO huggingface dataset:
Patent CA-2254918-A1 (CA)
Inventor: LAWCOCK ROGER
IPC: B22F3/02
Filed: 1996-12-24
Abstract: A method for making a high density powdered metal article is provided. The composition consists of iron based powder, lubricant, graphite and ferro alloy additions. Satisfactory results may also be achieved by using prealloyed molybdenum grades of metal powders. The composition is compacted in rigid tools at ambient temperature, sintered at high temperature and then formed in rigid tools comprising a clearance (22) for movement of the sintered compact to final shape, at 40 to 90 tons per square inch to a density greater than 94 % of theoretical. The high density article is then annealed. The final article demostrates remarkable mechanical properties which are atypical of powdered metal components and approach those of wrought steel.
Patent CA-2255794-A1 (CA)
Inventor: SCHAFER RONALD K
IPC: A01N47/20
Filed: 1997-01-27
Abstract: Compositions which include a mixture of CIPC and at least one substituted naphthalene are disclosed. The compositions of the present invention are adapted for inhibiting sprout growth in tubers. When so used, the preferred substituted naphthalene in the compositions of the present invention are dimethylnaphthalene (DMN) and diisopropylnaphthalene (DIPN). A method of applying a CIPC/naphthalene mixture is also disclosed. In a preferred embodiment of the method, tubers to be placed in storage are treated with a composition of C1PC and a substituted naphthalene utilizing thermal fogging techniques, with the average effective residue of CIPC on the tubers of from approximately 21 ppm to 2.5 ppm. In the preferred embodiment, the weight ratio of average effective residue of CIPC to the substituted naphthalene is from approximately 1:1 to 1:4. In a most preferred embodiment, a composition including CIPC and either DIPN or DMN is applied to tubers utilizing thermal fogging techniques to obtain an average effective residue on the outer surface of the tubers of approximately 14 ppm C1PC and 14 ppm of the DIPN or DMN.
Patent CA-2256458-A1 (CA)
Title: Atraumatic anchoring and disengagement mechanism for permanent implant device
Inventor: OSTROVSKY ISAAC
IPC: A61F2/06
Filed: 1997-11-26
Abstract: A recoverable thrombosis filter that can be implanted and securely positioned within a vein at a desired location, and can be recovered through an endovenous route even after formation of neointima hyperplasia, is disclosed.
Patent CA-2256769-A1 (CA)
Title: Free-standing internally insulating liner
Inventor: DILLON KENNETH R
IPC: B01J19/00
Filed: 1996-10-15
Abstract: An insulating liner (40) for use with exhaust system or pollution control devices such as catalytic converters (18) and diesel particulate filters or traps. The insulating liner is shown in relation to an end cone (14) for use with a catalytic converter. The end cone includes an outer metallic end cone and a free-standing insulating cone (40) positioned within the outer metallic end cone. A substantial portion of the inner surface of the insulating liner is exposed to hot exhaust gas from an internal combustion engine. The insulating liner is preferably formed of a composite containing inorganic fibers and/or particles, which makes the insulating liner rigid, yet capable of withstanding repeated mechanical and thermal shocks.
Patent CA-2257634-A1 (CA)
Title: Use of a polycarboxylate polymer to reduce bleach malodour on skin
Inventor: SIRIANNI GIUSEPPE
IPC: C11D3/37
Filed: 1997-06-06
Abstract: The present invention relates to the use of a polycarboxylate polymer in a hypochlorite bleach containing composition to reduce bleach malodour arising from the contacting of said composition with skin surfaces.
Patent CA-2261992-A1 (CA)
Inventor: ORCHARD-WEBB JONATHAN HARRY
IPC: H01L27/02
Filed: 1999-02-16
Abstract: A protection system employing high voltage input diodes and low voltage supply clamp to prevent input diode leakage increasing due to reverse stress during electrostatic discharge events.
Patent CA-2262057-A1 (CA)
Title: Hydrogenated dissacharide based additives for mineral binding substances, mineral binding admixtures and their preparation process
Inventor: MENTINK LEON
IPC: C07H15/04
Filed: 1999-02-10
Abstract: Additive for mineral binder comprises polyol composition containing at least 40, preferably 55 and especially at least 65 wt. hydrogenated disaccharide; the % being expressed with respect to dry weight of the polyol assembly in the composition. Independent claims are also included for mineral binder containing the additive; method for preparation of the additive; and use of the polyol composition as additive for mineral binders notably for improving their plasticity and/or mechanical properties.
Patent CA-2263980-A1 (CA)
Title: Machine a laver des pieces ordinaires perfectionnee
Inventor: MANSUR PIERRE G
IPC: B08B3/00
Filed: 1996-08-26
Abstract: Cette invention porte sur un appareil (10) qui s'utilise avec une solution nettoyante pour laver des pièces d'automobile, d'avion, de navire ou d'autres pièces ordinaires lors de travaux d'entretien, de réparation ou de reconstruction. L'appareil comprend un réservoir de retenue d'une solution (40), un lavabo (14) équipé d'une évacuation (28) pour faciliter le retour de la solution nettoyante dans le réservoir de retenue (40), et une pompe (44) dans le réservoir de retenue (40) pour recycler la solution nettoyante, par le biais d'un bec d'évacuation, à l'intérieur du lavabo (14) pour y laver des pièces. Un premier ensemble de soupape (34) placé entre le drain (28) et le réservoir de retenue d'une solution (40) se ferme pendant les périodes de non utilisation pour empêcher l'émanation de vapeurs dans l'atmosphère. Pendant un processus de recyclage, un deuxième ensemble de soupape (66) transfère le solvant usé contaminé du réservoir de retenue (40) à une chambre de distillation (60) où le solvant est chauffé et transformé en vapeur. Un condensateur (100) refroidit la vapeur et la réduit à l'état liquide, produisant une solution nettoyante non contaminée qui est acheminée dans le réservoir de retenue (40) pour un nouveau lavage de pièces, en cas de besoin.
Patent CA-2264530-A1 (CA)
Title: Multifocal corneal contact lenses
Inventor: SEIDNER LEONARD
IPC: G02C7/06
Filed: 1997-08-27
Abstract: A pair of multifocal contact lenses comprises a first corneal contact lens (10) having a concave posterior surface (12) and a circular anterior surface (14) which is formed with a power curve (16) including a circular intermediate vision correction zone (18) and an annular distance vision correction zone (20) contiguous with the intermediate vision correction zone. A second corneal contact lens (24) of the pair has a concave posterior surface (26) and a convex anterior surface (28) which is formed with a power curve (30) including a circular intermediate vision correction zone (32) and an annular near vision correction zone (34) contiguous with the respective intermediate vision correction zone (32). The intermediate vision correction zone (18) and distance correction zone (20) and the intermediate vision correction zone (32) and the near vision correction zone (34) of respective pairs have optical powers differing in magnitude by less than approximately 1.5 diopters.
Patent CA-2264878-A1 (CA)
Title: Optical dispersion compensation
Inventor: LOH WEI-HUNG
IPC: H04B10/2569
Filed: 1997-08-04
Abstract: A chirped optical fibre grating formed by impressing a chirped substantially periodic refractive index variation on a polarisation-maintaining optical fibre. The polarisation state of a laser transmitter (10) is maintained through an external modulator (20) and a polarisation maintaining circulator (30) by the use of polarisation maintaining fibre pigtails (40) aligned to one of the principal axes of high birefringence optical fibre used to fabricate the dispersion compensating grating (50). On reflection, light is output from the third port (60) of the circulator. Since only one polarisation mode of the grating (50) is excited, the PMD in the grating is eliminated. The polarisation maintaining circulator (30) comprises input/output lenses (32) at each port, a polarisation beam splitter (34) and a Faraday rotator (36). Light entering the circulator at the input port is arranged to be in a polarisation that passes through the polarisation beam splitter (34) towards the second port of the circulator. The light is rotated by 45° in the rotator (36). The grating (50) and the fibre pigtail at the second port of the circulator are arranged with their principal axes rotated by 45° with respect to the axes of the input to the circulator. Light reflected from the grating is then further rotated by 45° by the rotator, into the polarisation which is deverted by the polarisation beam splitter (34). This light is therefore diverted to the third output (60) of the circulator. Another embodiment in which two chirped gratings (100, 110) are formed in high birefringence polarisation maintaining fibre with axes aligned, and a 45° Faraday rotator (120) is placed inbetween.
Patent CA-2266498-A1 (CA)
Inventor: KAMGAR FARBOD
IPC: H04B1/7085
Filed: 1997-09-19
Abstract: A receiver of a radio frequency signal having a pseudo-random noise (PRN) code modulated on a carrier, and techniques of processing such a signal that are especially adapted for ranging applications. Such an application is in a global positioning system (GPS or GLONASS) receiver. Both of the receiver DLL code and PLL carrier loops include a loop component that senses an error in its main loop caused by the presence of a multipath signal. The main loop is continuously adjusted by this sensed error, thereby causing the loop to track more precisely and minimize the effect of the multipath signal. The result is a more accurate range measurement.
Patent CA-2266615-A1 (CA)
Title: Skin care compositions containing an acid and a retinoid
Inventor: SCOTT IAN RICHARD
IPC: A61K8/30
Filed: 1997-09-18
Abstract: Oleanolic acid and/or ursolic acid in combination with retinol or retinyl ester substantially inhibits keratinocyte differentiation. The effects of oleanolic acid and/or ursolic acid in combination with retinol or retinyl ester are analogous to treatment with retinoic acid.
Patent CA-2268099-A1 (CA)
Title: Screening methods for glucocorticoid receptor binding substances using tripterygium wilfordii preparations
Inventor: CAI JIM
IPC: A61K36/00
Filed: 1996-09-27
Abstract: The present invention provides for the use of Tripterygium Wilfordii Hook F  extracts and purified components thereof in the treatment of inflammation or an immune disorder with concomitant lack of steroidal effect. Extracts of this plant (T2) bound to the glucocorticoid receptor and competitively inhibited glucocorticoid mediated cellular processes, such as dexamethasone binding to the glucocorticoid receptor, glucocorticoid mediated activation of target genes, dexamethasone dependent cellular growth, with concomitant inhibition of cyclooxygenase-2 induction and inflammatory processes such as the production of prostaglandin E2. The T2 extract components triptolide and tripdiolide were effective inhibitors. The particular advantage provided by the methods herein is the treatment or prevention of inflammation and the concomitant lack of steroidal agonist effects and NSAID  side effects. Conditions treatable by the present methods include inflammation and immune disorders including autoimmune disease.
Patent CA-2269968-A1 (CA)
Inventor: PRATLEY STUART KEITH
IPC: A61K8/00
Filed: 1997-10-20
Abstract: Cette composition démaquillante aqueuse comprend: (a) un agent tensioactif anionique à chaîne courte sélectionné dans le groupe constitué par des sulfates d'éther alcoylique C¿6?-C¿9?, des lactylates d'acyle C¿8?-C¿11?, des taurates d'acyle-méthyle C¿6?-C¿9?, des iséthionates d'acyle C¿6?-C¿9?, des savons d'acide gras C¿6?-C¿11?, des sulfates d'alkyle C¿6?-C¿9?, des sarcosinates d'acyle C¿6?-C¿11?, des sulfosuccinates d'alkyle C¿6?-C¿9?, des sulfosuccinates d'éther alcoylique C¿6?-C¿9?, ou des mélanges desdits composés; (b) un agent tensioactif anionique à longue chaîne sélectionné dans le groupe constitué par des sulfates d'éther alcoylique C¿13?-C¿18?, des lactylates d'acyle C¿13?-C¿18?, des taurates d'acyle-méthyle C¿13?-C¿16?, des iséthionates d'acyle C¿13?-C¿15?, des sulfates d'alkyle C¿13?-C¿16?, des sarcosinates d'acyle C¿13?-C¿16?, des sulfosuccinates d'alkyle C¿13?-C¿16?, des sulfosuccinates d'éther alcoylique C¿13?-C¿16?, ou des mélanges desdits composés; (c) éventuellement un agent tensioactif anionique à chaîne moyenne sélectionné dans le groupe constitué par des sulfates d'éther alcoylique C¿10?-C¿12?, des lactylates d'acyle C¿12?, des taurates d'acyle-méthyle C¿10?-C¿12?, des iséthionates d'acyle C¿10?-C¿12?, des sulfates d'alkyle C¿10?-C¿12?, des sarcosinates d'acyle C¿12?, des sulfosuccinates d'alkyle C¿10?-C¿12?, des sulfosuccinates d'éther alcoylique C¿10?-C¿12?, ou des mélanges desdits composés; (d) de l'eau. Dans ladite composition, (i) au moins un des agents tensioactifs (a) ou (b) est sélectionné dans le groupe constitué par les lactylates d'acyle, les sarcosinates d'acyle, les taurates d'acyle-méthyle, les sulfates d'éther alcoylique et les iséthionates d'acyle; ou l'agent tensioactif anionique à chaîne courte (a) est un savon d'acide gras C¿6?-C¿11?; (ii) si l'agent tensioactif (c) est présent, les agents tensioactifs (a), (b) et (c) sont alors présents en quantité telle que le rapport en poids de (c): [(a) + (b)] est inférieur à 1:1.
Patent CA-2272926-A1 (CA)
Title: Compact disc folder booklet
Inventor: PETTEY THOMAS J
IPC: B65D85/57
Filed: 1997-11-18
Abstract: A compact disc folder (10) in the form of a booklet is disclosed which has a multi-page booklet portion (14) held between two opposing panels of a cover portion (12). The front panel of the cover portion includes a pocket formed by two opposing flaps attached to the front panel, one of the flaps including a notch that permits the flap to lie flat on the front panel without interfering with the booklet portion so that the folder will lie flat when closed. A  second pocket may be formed in the cover portion to accommodate a thick booklet between the front and rear panels of the cover portion. The booklet portion may be divided by way of a divider portion that is an extension of the rear cover panel of the cover portion.
Patent CA-2274397-A1 (CA)
Title: Method and apparatus for recycling styrene resin
Inventor: MIYASHITA MAYUMI
IPC: C08J11/08
Filed: 1999-06-11
Abstract: There is provided a processing method for effectively and promptly removing insoluble components contained in a solution of a styrene resin waste material to enable regeneration of high-quality regenerated styrene. To this end, a solution of the styrene resin waste material in an organic solvent is processed with, for example, a dehydrating agent, to remove insoluble components. The resulting clarified solution is degasified on heating in vacuum to remove the organic solvent for recycling the resulting mass as a regenerated styrene resin. The insoluble components include foreign matter, such as moisture, sludge and colorant agents. By this processing method, it becomes possible to recycle high-quality regenerated styrene.
Patent CA-2276381-A1 (CA)
Title: Method and apparatus for controlling quality of service in an atm network
Inventor: GROSSMAN DANIEL B
IPC: H04L12/56
Filed: 1997-11-06
Abstract: A switching node (15, 16, 17 or 20) for an ATM network (10) can selectively implement one of a plurality of call transforming procedures. The switching node (15, 16, 17, or 20) stores characteristics of each connected communications link (22 or 24) in a virtual connection and determines, for any ATM message the quality of service requirements for a particular transfer over a virtual connection. The selection of a call transferring process is based upon minimizing a particular potential error. Decisions concerning the implementation of correction procedures and the capability of the virtual connection to accommodate these requirements are made on a link-by-link basis.
Patent CA-2282267-A1 (CA)
Title: A process for the reduction of reactor fouling
Inventor: DAMMERT RUTH
IPC: C08F2/00
Filed: 1998-10-28
Abstract: A process for the reduction of reactor fouling at radical initiated high pressure polymerisation of ethylene (co)polymers is described. The process is characterised in that an adhesion reducing silicon containing compound is added to the polymerisation reactor, preferably in an amount of 0.001-3 % by weight, based on the amount of polymer produced. Preferably the silicon containing compound is hexadecyl trimethoxy silane.
Patent CA-2285823-A1 (CA)
Title: A method for reducing alkaline darkening of mechanical pulp containing a calcium carbonate filler
Inventor: LALEG MAKHLOUF
IPC: D21H17/67
Filed: 1999-10-12
Abstract: A method is disclosed for reducing or inhibiting alkaline darkening of mechanical pulp caused by the presence of calcium carbonate filler during production; the method comprises adding a sulphite, or sulphur-containing reducing agent, especially a sulphite to the mechanical pulp and the filler; the method is usefully applied in the production of mechanical pulp and paper in which calcium carbonate is used as a filler and also in the production of paper at neutral or mildly alkaline conditions.
Patent CA-2286972-A1 (CA)
Title: Ballast method and apparatus and coupling therefor
Inventor: SHIN EUN CHUL
IPC: H05B41/285
Filed: 1998-03-17
Abstract: A ballast is disclosed which can operate at an effective level of output with a number of different input voltage levels. A ballast is also disclosed that uses a ceramic (148) as a heat sink for switching transistors (144, 86, 96). A ballast is further disclosed which uses a start signal (48) for a power factor circuit (40) to boost voltage after the load for the ballast has already has a current applied to it. Furthermore, a ballast is disclosed which has a transformer (100) having a permeability which varies somewhat inversely with temperature over a given temperature range.
Patent CA-2288767-A1 (CA)
Title: Pseudo-random generator based on a hash coding function for cryptographic systems requiring random drawing
Inventor: M RAIHI DAVID
IPC: G07F7/10
Filed: 1998-05-05
Abstract: The invention concerns a cryptographic system, normally requiring the drawing of a random number k, which is a whole number. The system is characterised in that it is operated by replacing said random number k by the value h (m/secret) in which h is a hash coding function, m is the message intervening in said system and "secret" is a secret unknown to the world outside the cryptographic system. The invention is particularly applicable to communicating media such as smart cards, PCMCIA cards, badges, contactless cards or any other portable medium.
Patent CA-2289477-A1 (CA)
Title: Folding and stacking configuration for wet wipes
Inventor: HILL SIMON DAVID JULIEN
IPC: H04N5/44
Filed: 1998-05-26
Abstract: The present invention relates to wet wipes for use in wiping surfaces in the home and in industry, in addition to their use on the human body such as for baby wipes, make-up removal and other skin care applications. The wet wipes (1) are folded and interleaved with one another to provide an improved stacking configuration whereby each wipe can be readily singly separated from the wet wipe stack (23) by the consumer.
Patent CA-2291708-A1 (CA)
Title: Sulfonamides as cell adhesion inhibitors
Inventor: HAGMANN WILLIAM K
IPC: A61K31/18
Filed: 1998-05-29
Abstract: Compounds of formula (I) are antagonists of VLA-4 and/or .alpha.4-.beta.7, and as such are useful in the inhibition or prevention of cell adhesion and celladhesion mediated pathologies. These compounds may be formulated into pharmaceutical compositions and are suitable for use in the treatment of asthma, allergies, inflammation, multiple sclerosis, and other inflammatory and autoimmune disorders.
Patent CA-2291790-A1 (CA)
Inventor: MALMQUIST MATS
IPC: B01L3/14
Filed: 1998-05-28
Abstract: A novel reaction vessel comprising a receiving portion and a capillary portion, said capillary portion optionally detachable from the body of the vessel, simplifies many processes involving small volume chemical reactions, such as PCR-determinations. The present invention further includes a method, using the novel reaction vessel in performing small volume chemical reactions, such as PCR-determinations.
Patent CA-2293566-A1 (CA)
Inventor: BUCKLAND BRUCE H
IPC: H04L29/08
Filed: 1998-06-23
Abstract: An apparatus for identifying a client accessing a first network site utilizes a control site to maintain information relating to the client. To that end, in response to receipt of a request from the client to access the first network site, it is determined if the client includes a first site data block. If it is determined that the client does not include the first site data block, then the control site is controlled to produce a control site data block having both control site identification data and a client identifier. The control site data block then is transmitted from the control site to the client. In a similar manner, the client identifier is transmitted from the control site to the first network site. Upon receipt of the client identifier by the first network site, the first network site is controlled to transmit the first site data block to the client. The first site data block may have both the client identifier and first site identification data.
Patent CA-2296525-A1 (CA)
Title: Materials and methods for controlling homopteran pests
Inventor: SCHNEPF H ERNEST
IPC: A01N63/50
Filed: 1998-07-29
Abstract: The subject invention concerns materials and methods for the control of nonmammalian pests. In specific embodiments, the subject invention concerns materials and methods useful in the control of insects from the Order Homoptera. More specifically, the subject invention provides novel Bacillus thuringinesis (B.t.) isolates, or strains, toxins, and toxin-encoding genes that are useful for the control of homopterans. The strains HD969, PS66D3, and PS50C are specifically exemplified herein as yielding mortality against homopterans. In a preferred embodiment, the target pests are selected from the group consisting of leafhoppers and planthoppers.
Patent CA-2298008-A1 (CA)
Title: Process for making perfume-impregnated hydrogel-forming absorbent polymers
Inventor: REZAI EBRAHIM
IPC: A61F13/15
Filed: 1997-07-24
Abstract: The present invention is directed to a process for making a perfume-impregnated hydrogel-forming absorbent polymer wherein release of a perfume smell is triggered by dynamic swelling force of the polymer when the polymer is wetted, which comprises the steps of: (i) mixing a solid carrier and a perfume with reaction intermediates of hydrogel-forming absorbent polymer before the gelation point of polymerization of the hydrogel-forming absorbent polymer, (ii) forming the perfume-impregnated hydrogel-forming absorbent polymer, and (iii) drying the perfume-impregnated hydrogel-forming absorbent polymer. The present invention further relates to such perfume-impregnated hydrogel-forming absorbent polymer. The present invention further relates to a disposable absorbent article comprising such perfume-impregnated hydrogel-forming absorbent polymer.
Patent CA-2298484-A1 (CA)
Inventor: SANDERS SARA
IPC: B65D83/04
Filed: 1998-06-24
Abstract: A dispensing apparatus comprising at least two parts, with the first part (d) being releasably held within the second (g) of the two parts and the first and second parts can be moved relative to one another to display at least two apertures leading to a chamber for retaining articles which are to be dispensed from the apparatus. The apparatus is preferably for dispensing question cards for playing a jigsaw game.