baber/WOPTO huggingface dataset:
Patent CA-2250315-A1 (CA)
Inventor: SCANNI NINO V
IPC: A47L9/06
Filed: 1998-10-15
Abstract: A vacuum assisted broom for sweeping floors having a sweeping member, preferably in the form of a plurality of stiff bristles, for bi-directional sweeping of the floor. The sweeping member is operatively mounted within a housing member, which housing member partially encloses the sweeping member within its hollow interior such that the bristles depend from the housing member through a first opening. A handle member is securely attached to the housing member and extends upwardly therefrom. The sweeping member has bristles which are extended such that the broom may be used as a conventional broom, and as a vacuum pick-up. An electrical switch is actuated so as to turn on a suction means that is operatively connected to the interior of the housing  member, thus to create a partial vacuum, at the first opening of the housing member. In this manner, the vacuum, assisted broom of the present invention can be used as conventional sweeping broom and also can be used to subsequently vacuum up any dust or dirt swept to a central location by the broom.
Patent CA-2250599-A1 (CA)
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/27
Filed: 1998-10-16
Abstract: A method of making a heated injection molding nozzle with an integral tip insert. First, an inner portion, an outer collar portion, and an electrical heating element are made and integrally brazed together in a vacuum furnace using a first nickel alloy brazing material. Then a tip insert is made having a desired configuration and seated in the front end of the inner portion and a second nickel alloy brazing material is applied around it. The second brazing material has a melting temperature which is substantially below that of the first brazing material.      The tip insert is then integrally brazed in place by heating them to a temperature above the melting temperature of the second brazing material and below the melting temperature of the first brazing material. In addition to not affecting the metallurgical bonding between the other components, this allows the tip insert to be easily removed for replacement by again heating the nozzle to this same temperature.
Patent CA-2251100-A1 (CA)
Title: Current interrupter for electrochemical cells
Inventor: VU VIET H
IPC: H01M50/583
Filed: 1997-04-10
Abstract: A current interrupt mechanism for electrochemical cells is disclosed. A  thermally activated current interrupt mechanism (38) is integrated into an end cap assembly (10) for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk (40) or a meltable mass of material (175) to break an electrical pathway within the end cap assembly. The end cap assembly also includes integrated therein a pressure responsive current interrupt mechanism (48). The pressure responsive mechanism activates to sever electrical contact between a diaphragm (70) and a plate (80) within the end cap assembly (10) to prevent current from passing through the cell, and may include a diaphragm (70) which ruptures when there is extreme gas pressure buildup.
Patent CA-2254425-A1 (CA)
Inventor: JOHNSON DWIGHT N
IPC: B08B9/00
Filed: 1998-11-18
Abstract: A fill valve has a main valve with a valving surface contacted by a valve disk.  A series of offset radial paths separated by a toroidal path permit free radial flow at full open and quiet tortuous flow as the valve closes.  Removal of a cap permits access to the main valve for cleaning.  Indicia in the valve body provide easy height adjustments.  A riser base is made up of easily molded locking parts and provides a variable height adjustment structure that is shielded from view.  A flexible cup performs multiple functions including serving as a pilot valve, a vacuum breaker valve and a seal.  A float for operating the pilot valve is pivotally mounted without extra parts or fasteners.
Patent CA-2260429-A1 (CA)
Title: Locking clip system for securing panels together
Inventor: ADDINK BRAD J
IPC: F16B5/06
Filed: 1999-01-26
Abstract: A system for interlocking together two panel members comprises a washer member having a first washer portion connected by a first necked down portion to a second intermediate washer portion and a third washer portion connected by a second necked down portion to the second intermediate washer portion. A bore runs through the washer member for receiving a screw for fastening the washer member to a side of a first panel member. A second panel member has a keyhole slot and an aperture spaced from the keyhole slot. A resilient clip member has one end formed with a right angle projecting portion and a second end formed with an aperture configured to securely receive the first necked down portion of the washer member. When the washer member is fastened together with the clip member to a side of the first panel member, the third washer portion may be inserted into the keyhole slot and the first panel member may be moved such that the second necked down portion slides into a reduced opening portion of the keyhole slot, whereupon the projecting portion of the clip member is resiliently biased into the aperture of the second panel member thereby immovably securing the panel members together.
Patent CA-2261044-A1 (CA)
Title: Surgical implants and delivery systems therefor
Inventor: REIDY JOHN
IPC: A61F2/06
Filed: 1997-07-15
Abstract: A stent for occluding the human ductus arteriosus comprises a length of wire of shape memory effect or superelastic material which is expandable from a relatively straightened state for introduction into the patient, to an occluding state wherein the wire defines an occluding anchor part (10), and spiral anchor part (12) and a straight linking part (14). In the occluding anchor part (10), the wire has adopted a series of turns extending over the cross-sectional area of the occluding anchor part (10).
Patent CA-2261528-A1 (CA)
Inventor: RODELS LEN
IPC: A44C5/10
Filed: 1999-02-12
Abstract: A jewellery link includes a pair of bodies each of which has a link receiving enclosure with an inlet channel providing access to the link receiving enclosure and an appendage bordering the inlet channel. The appendage defines a portion of a socket.  The pair of bodies is compatibly shaped such that when the appendage of one of the pair of bodies is placed in the inlet channel of the other of the pair of bodies, the relative positioning of the appendages serves to complete the socket and block the inlet channels. Upon a locking pin being inserted into the socket the relative positioning of the bodies is maintained preventing the withdrawal of any links captured within the link receiving enclosures.
Patent CA-2262239-A1 (CA)
Inventor: TSUSHIMA KATSUTOSHI
IPC: F25C3/02
Filed: 1999-02-18
Abstract: This invention is a single crystal ice manufacturing method for manufacturing single crystal ice by creating a temperature environment in which the top section of the refrigerating temperature distribution of a hermetically sealed refrigerating space is held to high temperature and the bottom section to low temperature, guiding water to the high-temperature section, and dropping the water to the low-temperature section.
Patent CA-2263142-A1 (CA)
Title: Adaptive appliance control module including switching relay
Inventor: SWANSON JAMES
IPC: F25D29/00
Filed: 1998-06-12
Abstract: A novel shape memory alloy electrical switch is disclosed, including both momentary and especially a latching relay. The switch/relay disclosed is particularly useful in low power control of appliances, including i.a.  refrigerators. Used with a microprocessor, microcontroller, or like device to control the shape memory alloy switch/relay, an adaptive control routine may be included which facilitates an especially low-power dissipation, highly effective appliance control module, especially suitable for refrigerators. The disclosed refrigerator control module can be manufactured at low cost with high reliability.
Patent CA-2266286-A1 (CA)
Inventor: KEMENY FRANK L
IPC: C21C5/52
Filed: 1999-03-19
Abstract: The measurement and control of stirring energy that is imparted by a gas flowing through a liquid metal in a container is achieved by monitoring the degree of vibration of the container using an appropriate transducer, and amplifying and processing the vibration signal to provide an indication of the degree of stirring energy applied to the container.      The processed signal is converted to a signal for an operator interface, PLC, or other suitable controller to open or close a flow valve to cause stirring gas to be delivered to the container to provide the desired stirring energy for the liquid within.
Patent CA-2267189-A1 (CA)
Title: Apparatus and method for blocking a contact lens button
Inventor: SHANNON JOHN H
IPC: B24B13/005
Filed: 1997-10-16
Abstract: A contact lens button and a block are integrally formed together when the contact lens button is cast in a cup (10) having an aperture (20) formed in the center of the bot-tom wall (14) of the cup. The block has a first elongated end forming a spindle (23) and a second end which is of circular, gen-erally planar configuration. The spindle end is inserted through the aperture in the bottom wall of the cup providing an interference fit with the circular end portion located inside the cup spaced parallel to and slightly up-wardly from the bottom wall, and the first spindle end extends exteriorly of the cup. A quantity of liquid lens material is dispensed into the cup, completely surrounding the cir-cular end portion of the block. The material cures around the block second end, with the formed button and block removable from the cup as a single unit. The block first end is secured to a lathe chuck for rotating the but-ton to cut the concave base surface of the lens. A front curve block is then remov-ably secured to the base curve surface and inserted into a lathe chuck for cutting the convex power curve into the button while previously or simultaneously cutting away the block. The block sets the turning axis of the button and assists in transferring the turning axis over to the front curve block.
Patent CA-2269820-A1 (CA)
Title: Vector quantisation codebook generation method
Inventor: COCKSHOTT WILLIAM PAUL
IPC: H04N19/94
Filed: 1997-10-15
Abstract: A data compression system using vector quantisation utilises a codebook or index tables constructed by finding a small set of points in an n-dimensional space which are representative of a much larger population. The space is partitioned such that the integrals of the probability density functions over all the subspaces are approximately equal and thereafter the centre of gravity of each subspace is taken to represent the subspace population. The partitioning is effected sequentially to map n-dimensional space into one dimensional code space.
Patent CA-2270422-A1 (CA)
Inventor: BUNCE SAMANTHA JUSTINE
IPC: C11D3/37
Filed: 1997-10-30
Abstract: The invention relates to solid, effervescent bleach compositions comprising: (i) a bleach activator; (ii) an oxygen effervescence generator comprising a persulphate salt and a perborate salt, wherein the weight ratio of the persulphate salt to the perborate salt is in the range from about 0.8:1 to about 5:1; and (iii) a carbon dioxide efferverscence generator comprising a bicarbonate salt and an acid; wherein the weight ratio of the perborate salt to the bicarbonate salt is in the range from about 2:1 to about 20:1. The compositions provide excellent de-stain activity with improved effervescence and/or tablet disintegration. They are especially suitable in tablet form as denture cleansers.
Patent CA-2270647-A1 (CA)
Title: Remote control electronic display system
Inventor: GOTHARD DAVID
IPC: G09G3/28
Filed: 1999-04-30
Abstract: A remotely controlled electronic display sign which operates with a plasma display and which provides for humidity and heat control and the like allowing the sign to be used in various environments. The sign is essentially self-contained and includes those components necessary for enabling a display of desired material from a remote control source or one located at the sign. A controller in or associated with the sign is accessible either electrically, or through satellite transmission or other wireless transmission from the remote source which allows the display of the sign to be changed at will. Thus, an operator at a remote source may, with the aid of a pre-prepared graphic design, transmit that design to the controller at or associated with the sign for display of that graphic information and potentially with sound.
Patent CA-2270916-A1 (CA)
Inventor: NISHIMURA KEIJI
IPC: C21D8/02
Filed: 1998-09-03
Abstract: Steel plates for manufacturing drum cans; one with its N content set to 0.0050-0.0200 wt.% to increase solid solution of N, and the other with its Nb content set to 0.003-0.10 wt.% to fine an average crystal grain size; these steel plates having high normal-temperature and high-temperature strengths and a high low-temperature tenacity as compared with a conventional steel plate of this kind. A drum can using these steel plates and, as a result, having a high recycling frequency, a thin wall thickness and a light weight as compared with a conventional one; and a method of reliably manufacturing such steel plates.
Patent CA-2272417-A1 (CA)
Title: Adjuvant for transcutaneous immunization
Inventor: ALVING CARL R
IPC: A61K9/52
Filed: 1997-11-14
Abstract: A transcutaneous immunization system delivers antigen to immune cells without perforation of the skin, and induces an immune response in an animal or human.  The system uses an adjuvant, preferably an ADP-ribosylating exotoxin, to induce an antigen-specific immune response (e.g., humoral and/or cellular effectors) after transcutaneous application of a formulation containing antigen and adjuvant to intact skin of the animal or human. The efficiency of immunization may be enhanced by adding hydrating agents (e.g., liposomes), penetration enhancers, or occlusive dressings to the transcutaneous delivery system. This system may allow activation of Langerhans cells in the skin, migration of the Langerhans cells to lymph nodes, and antigen presentation.
Patent CA-2272505-A1 (CA)
Title: Method for providing secure transmission of information
Inventor: DULTZ GISELA
IPC: H04L9/08
Filed: 1999-05-19
Abstract: Described is a method for providing secure transmission of information between at least two users of a telecommunications network, using a secret, random, binary key of great length that is used only once for purposes of encryption. This key is generated in a key generator (10), for example by means of an optical random generator with a beam splitter, and is preferably accessible to the public; this key is read onto at least two transportable data carriers (12), for example, CDs, and is then issued in this form to the users, each of which receives a data carrier (12) with the key read onto it. There is no additional storage of the key. The users then install this key carrier (12) into reading devices (14) that are associated with the telecommunications terminal devices (16), such as telephones, facsimile apparatuses, or PCs, that are being used by the users. When a connection is being set up, correct installation of the key and its matching are checked by logistics devices (18) that are each similarly associated with the telecommunications terminal devices (16); during encryption and decryption of the information that is to be transmitted, the logistics devices (19) check for synchronization of the keys or at least the part of said keys that has been input. A system for implementing this method with the devices required for this purpose is also described.
Patent CA-2274931-A1 (CA)
Title: A process for improving the properties of ground recycled rubber
Inventor: BALOGH GEORGE FRANK
IPC: C08K5/17
Filed: 1999-06-16
Abstract: A process involving (a) homogeneously dispersing tris(2-aminoethyl) amine in a recycled rubber having an individual particle size no greater than 420 microns, (b) mixing the treated recycled rubber with unvulcanized rubber and (c) vulcanizing the rubber mixture.
Patent CA-2280384-A1 (CA)
Inventor: MEARS GREGORY C
IPC: H02M1/08
Filed: 1999-08-16
Abstract: A control arrangement is provided for power electronic switches and especially an inverse-parallel connected pair of thyristors operating at medium voltages.  The control arrangement does not require an external power supply and exhibits improved dv/dt capabilities. The improved dv/dt capabilities are achieved by the control arrangement exhibiting a voltage drop when conducting that is significantly more than the voltage drop across the conducting power electronic switch. In a specific implementation, the control arrangement includes a plurality of series-connected electronic control devices. In a specific implementation, the electronic control devices are light-activated triggering devices which provide isolation between the control signals to the control arrangement and the power electronic switch.
Patent CA-2282289-A1 (CA)
Inventor: KERR COLIN WATT
IPC: C11D3/06
Filed: 1998-02-24
Abstract: A combination comprises at least one tablet of compacted particulate detergent composition, stored for at least 24 hours, within a packaging system having a moisture vapour transmission rate of less than 20 g/m2/24 hours. A process of preparing the combination is disclosed.
Patent CA-2283256-A1 (CA)
Title: 1-(isoquinolin-1-yl)-4-(1-phenylmethyl)piperazines; dopamine receptor subtype specific ligands
Inventor: CHEN XI
IPC: C07D405/12
Filed: 1998-03-03
Abstract: Disclosed are compounds useful in treating psychotic disorders such as schizophrenia and other central nervous system diseases, where the compounds have general Formula (I), wherein: Ar represents an aryl or heteroaryl group; R1 and R2 independently represent hydrogen, halogen, C1-C6 alkyl, C1-C4 alkoxy, C1-C4 alkylthio, hydroxy, amino, mono- or di(C1-C6)alkyl amino, cyano or trifluoromethyl; and R5 represents hydrogen or C1-C6 alkyl.
Patent CA-2283482-A1 (CA)
Title: Olefin polymer compositions containing metal carboxylate cross-linking retarders
Inventor: ARJUNAN PALANISAMY
IPC: C08L23/08
Filed: 1998-02-23
Abstract: Polymer composition comprising a linear low density ethylene copolymer containing about 1-30 mol % of alpha-olefin comonomer and having improved resistance to cross-linking during thermoforming are provided. The ethylene copolymer has a narrow compositional distribution of chain branching as reflected by compositional distribution breadth index of at least 50 % and is stabilized to inhibit cross-linking during thermoforming by the addition of an effective amount of a metal carboxylate of C1-C22 carboxylic acid.
Patent CA-2288773-A1 (CA)
Inventor: CASTELLI DOMINIQUE
IPC: A61K31/702
Filed: 1998-04-30
Abstract: The present invention concerns a use of at least one oligosaccharide possessing from 2 to 6 glycoside residues and having a galactose residue in a non-reducing terminal position, or of a derivative of such an oligosaccharide capable of being obtained by attachment of a hydrophobic radical, for the preparation of a composition intended for increasing the synthesis and/or decreasing the degradation of the proteoglycans of connective tissue.
Patent CA-2289037-A1 (CA)
Inventor: RAUBO PIOTR ANTONI
IPC: A61K31/53
Filed: 1998-05-27
Abstract: Dérivés substitués spiro-azacycliques représentés par la formule (I) et qui sont des antagonistes du récepteur de tachykinine utiles, par exemple, pour le traitement et la prophylaxie de la douleur, de l'inflammation, de la migraine, du vomissement et de l'algie post-zostérienne.
Patent CA-2290327-A1 (CA)
Inventor: TAYLOR-SMITH ERNEST JOHN
IPC: E02D29/02
Filed: 1999-11-24
Abstract: A retaining wall construction comprising, in combination, a first block having a hollow interior and opposed side and opposed end walls, a recess formed in at least one of the end walls, and an anchor comprising a generally U-shaped member with a base and sides. The anchor is able to engage the recess with the base extending through the recess and a side extending into the hollow interior of the block. The retaining wall construction of the present invention is very stable and can be assembled to a greater stable height than is possible with conventional retaining walls.
Patent CA-2291040-A1 (CA)
Title: Non-drying viscous agent for treating surfaces
Inventor: LUEDECKE WERNER
IPC: B08B3/04
Filed: 1998-05-14
Abstract: The invention relates to a non-drying, viscous agent for treating surfaces, containing 90 - 98.5 weight percent water, 1 - 4 weight percent hygroscopic constituents, 0.2 - 2 weight percent preservatives and as much thickening agent as is required to give the mixture a viscosity of 2,000 to 10,000 mPa (at 22 ~C, measured according to Brookfield, No. 3 spindle, 3.12 revolutions per minute). The invention also relates to the use of the inventive agent for treating surfaces which come into direct contact with foodstuffs or other surfaces in facilities where food is processed. The inventive agent keeps the surface moist and prevents food and dirt from drying onto said surface.
Patent CA-2291070-A1 (CA)
Title: Procede et appareil d'analyse conformationnelle de fragments moleculaires
Inventor: TEIG STEVEN L
IPC: G06F17/50
Filed: 1998-06-23
Abstract: Un mode de réalisation de la présente invention prévoit un procédé de détermination d'une conformation d'une structure moléculaire. Ce procédé comporte différentes étapes: une étape de décomposition informatique de la structure moléculaire en fragments; une étape de normalisation de chacun des fragments afin de former des fragments normalisés; une étape de détermination d'au moins un ou, si possible, de plusieurs conformères pour chaque fragment normalisé; et enfin, une étape de combinaison d'au moins un premier conformère et d'un second conformère afin de dériver la structure moléculaire. On peut ajouter à cette combinaison d'autres conformères. Certains modes de réalisation comportent également une étape consistant à rechercher un ou plusieurs fragments de conformères dans une banque. Si l'on trouve le fragment dans la banque, alors ses conformères correspondants sont extraits de la banque. Sinon, le procédé comporte une étape supplémentaire de stockage des informations relatives aux fragments et aux conformères qu'il produit à l'étape de détermination dans la banque en vue d'analyses ultérieures. Des modes de réalisation sélectionnés selon l'invention peuvent produire des conformères de faible énergie par résolution des souches et des torsions à l'intérieur des liaisons chimiques entre atomes dans les fragments.
Patent CA-2291990-A1 (CA)
Title: Pad, production method thereof and adhesive bandage using said pad
Inventor: YOSHIDA TAKESHI
IPC: B29C65/08
Filed: 1999-12-09
Abstract: A pad comprising an approximate-quadrangular portion and approximate-arched portions attached to both lateral sides of the approximate-quadrangular portion and all the periphery of said pad is sealed with ultrasonic treatment wherein: when L  represents the length of the approximate-quadrangular portion in the direction parallel to the lateral axis, S represents the length of the approximate-quadrangular portion in the direction parallel to the vertical axis and R represents a radius of said approximate-arched portion, following relations are satisfied:  0.5S<=R<S between S and R, the production method and the adhesive bandage using said pad. The pad prevents peeling-off from four corners thereof and intrusion of water.