baber/WOPTO huggingface dataset:
Patent CA-2171082-A1 (CA)
Title: Optical information carrier
Inventor: TOMPKIN WAYNE ROBERT
IPC: G06K19/16
Filed: 1996-03-05
Abstract: An information carrier is in the form of a composite laminate (2) with a first, a second and a third layer (3; 4; 5) having respective refractive indices n3, n4, n5. The second layer (4) forms structures (7) by only partially covering the first layer (3). The third layer (5) covers over the second layer (4) or the first layer (3) respectively in direct contact. The surface of the first layer (3) has surface elements (14) with first and second diffraction structures (6a; 6b) which produce a visually verifiable authenticity feature or which serve for reading out the information contained in the structures (7). The refractive indices n4 and n5 are substantially real in the visible range and therefore the second and third layers (4; 5) are transparent. The differences ¦n4-n3¦ and ¦n5-n3¦ are greater than 0.2 over large parts of the visible range so that the first diffraction structures (6a) produce visible diffraction effects independently of the structures (7). The differences n4-n3 and n5-n3 are of approximately equal magnitude in the visible range so that the structures (7) are invisible. In a second predetermined spectral range L the absolute difference ¦n5-n4¦ is at least 0.1 so that in the reading operation using a suitable light beam the structures (7) produce a measurable change in the light beam which is diffracted at the second diffraction structures (6b).
Patent CA-2171700-A1 (CA)
Title: Magnetic and/or magnetizable winding carrier and method of producing the same
Inventor: ESGUERRA MAURICIO
IPC: H01F17/04
Filed: 1996-03-13
Abstract: A magnetic and/or magnetizable winding carrier for a coil includes a coil body and an open core of magnetic material and/or magnetizable material.  The coil body and the core are constructed in one piece.  A method of producing the winding carrier includes injection molding the winding carrier.
Patent CA-2171833-A1 (CA)
Title: Method and device for detecting soil pollution or cleaning up polluted soil in situ, respectively
Inventor: URLINGS LEONARDUS GERARDUS CAT
IPC: B09C1/10
Filed: 1994-09-15
Abstract: The invention relates to a method and device for detecting soil pollution or cleaning up polluted soil in situ, respectively, in which: polluted air is extracted via one or more air drainage lines, which are located in the soil above the groundwater level, and/or polluted liquid is extracted via one or more further liquid drainage lines, which are located in the soil below the groundwater level, from the polluted soil, and the air and/or liquid thus extracted is analyzed or decontaminated.  The air drainage lines extend principally horizontally and preferably lie at least 1 metre above the groundwater level. The liquid drainage lines extend principally horizontally and lie preferably at least 1 metre under the groundwater level. A reduced pressure of preferably 3 to 6 kPa is applied to the air drainage lines. To further prevent environmental pollution, vapours and waste fluids which are released are also collected and supplied preferably to the same decontamination device.
Patent CA-2172236-A1 (CA)
Title: Formable, heat-stabilizable open network structure
Inventor: DINGER ROLF
IPC: D04B21/12
Filed: 1996-03-20
Abstract: The present invention relates to an open network structu-re interlooped or interlaced from a multifilament hybrid yarn composed of at least 2 varieties A and B of fila-ments with or without cofilaments C, wherein said fila-ments A are textured and have a melting point above 180°C, preferably above 220°C, in particular above 250°C, said  filaments  B  have a melting point below 220°C, preferably below 200°C, in particular below 180°C, the melting point of said filaments B being at least 20°C, preferably at least 40°C, in particular at least 80°C, below the melting point of said filaments A, and the weight ratio of said filaments A:B being within the range from 20:80 to 80:20, preferably from 40:60 to 60:40, and the multifilament hybrid yarn additionally containing up to 40% by weight of cofilaments C,  said open network structure possessing good flatness and a capability to be rolled up and to be three-dimensionally deformed. The network structure of the present invention can be used  in various ways  for  the decorative styling of complicatedly shaped surfaces,  in particular for the production  of  light  and  vision  protectors  having  a specifically predetermined light transmissivity and as an air-permeable insect resistor material.
Patent CA-2174730-A1 (CA)
Inventor: BAUM JOHN WILLIAM
IPC: C07D409/14
Filed: 1995-01-11
Abstract: Cette invention se rapporte à de nouveaux dérivés de pyrimidines d'aryle et d'hétéroaryle substitués à la position 2 et 4 du noyau de pyrimidine, à leur utilisation comme herbicides et aux compositions utilisées dans le domaine agricole comprenant ces dérivés de pyrimidines de la formule (I) dans laquelle W représente un phényle substitué ou un noyau hétérocyclique aromatique pentagonal ou hexagonal substitué où un ou deux atomes de ce noyau sont sélectionnés parmi l'oxygène, l'azote ou le soufre; W étant substitué par au moins R; R représente CO¿2?R?4¿, CHO, CONH-O-CH¿2?CO¿2?R?4¿, COSR?4¿, CO¿2?CHR?5¿OCOR?6¿ ou CH=NOR?4¿; R?1¿, R?2¿, R?4¿, R?5¿, R?6¿ sont tels que définis dans la demande. m = 1 ou 2.
Patent CA-2178319-A1 (CA)
Title: Thermoplastic photodegradable and biodegradable polymer blend
Inventor: GNATOWSKI MAREK
IPC: C08L67/04
Filed: 1993-12-10
Abstract: A photodegradable and fully biodegradable plastic material, which can be molded using conventional molding techniques and which has good physical and mechanical properties includes a blend of polyisoprene and polycaprolactone resins. The material biodegrades in soil and sea water environments. All blend ingredients are completely decomposed by microorganisms. Polyisoprene is a natural polymer present in a large variety of plant species or is man made.  Polycaprolactone is a synthetic polymer resin known to be decomposed by microorganisms. The plastic material has thermoplastic properties which permits processing of the material using conventional plastic-working techniques. The presence of C16-C18 saturated fatty acids and organic peroxide compatibilizers improve the properties of the blend, especially when large quantities of polyisoprenes are used which allows the production of high quality blown films.
Patent CA-2179348-A1 (CA)
Title: Product of fermented milk by the culture in symbiosis of strains of lactobacillus casei crl 431 atcc 55544 and lactobacillus acidophilus crl 730 55543
Inventor: CRAVERO RICARDO ALBERTO
IPC: A23C9/123
Filed: 1996-06-18
Abstract: Fermented milk products, liquids and reconstitutable powder forms thereof are formed through symbiotic culture of Lactobacillus casei CRL (ATCC 55544) and Lactobacillus acidophilus CRL 730 (ATCC 55543) in a milk substrate, up to a concentration of viable cells not less than 105 to 109 CFU/ml.
Patent CA-2179991-A1 (CA)
Inventor: HOECKER WALTER
IPC: B03D1/001
Filed: 1995-07-04
Abstract: A flotation process for the separation of a mineral of non-sulphidic character, such as a talcose mineral, from a mineral of sulphidic character, for example a base metal sulphide, characterised in that a slurry containing a mixture of the minerals is subjected to a sequence of mineral dressing operations in which a non oxidising gas or gas mixture and reducing agent are added to the slurry to maintain an electrochemical potential conducive to the separation of the minerals.
Patent CA-2183521-A1 (CA)
Title: Lens mounting
Inventor: PARR-BURMAN PHILIP MICHAEL
IPC: G02B7/04
Filed: 1995-02-16
Abstract: The invention relates to a lens mounting suitable for use in a high performance optical instrument. The mounting (10) comprises a body or housing, a linear guide (16; 18; 36; 46; 64) mounted on the body, a lens carriage (14; 34; 44; 62) moveable along the linear guide, and a linear drive, which may be in the form of a ball-screw drive and comprising a ball-screw (20; 80) extending substantially parallel to the linear guide and a ball-screw follower (22; 68) linked to the lens carriage such that rotation of the ball-screw moves the carriage axially along the guide. One or more elements of the ball-screw drive are mounted relative to the linear guide to permit a degree of relative movement therebetween to accomodate misalignment between the linear guide and ball-screw.
Patent CA-2184535-A1 (CA)
Title: Apparatus and Method for Separation of Solids from Liquid
Inventor: WILLIS H CRAIG
IPC: B01D37/03
Filed: 1996-08-30
Abstract: Method and apparatus are provided for separating coarse and ultrafine solids from a liquid stream to produce a substantially dry solids discharge and a clarified liquid. Apparatus is provided comprising a combination of a settling tank, a plurality of filter screens spaced along an endless link-chain conveyor, a screen vibrator and directed air streams. In operation, coarse solids settle preferentially to the tank bottom. Ultrafines solids remain in suspension. Relatively coarse filter screens are conveyed from a point outside the tank to traverse a prolonged path through the liquid. Ultrafine solids are captured on the screens, by filtering the liquid through an ever finer build-up of filter cake. The relatively large number of passes of the screens through the liquid provides effective filtering of suspended solids. Further, the screens dredge settled solids from the tank bottom. After exiting the liquid, collected coarse and ultrafine solids are dewatered by vibration of the screens and directed blasts of air. Dewatered solids are dumped external to the tank and clarified water is recovered from the tank. Enhanced polymer flocculation may be practised to form flocs from ultrafine solids, after which flocs may be collected (filtered/dredged), dewatered and dumped using the invention. Dewatered solids can further be subjected to compression and decompression cycles to separate even more water from the solids.
Patent CA-2186950-A1 (CA)
Inventor: SURKA STEFAN
IPC: G06K7/10
Filed: 1995-01-20
Abstract: L'invention concerne un procédé et un appareil pour décoder une image en pixels représentant un symbole de code à barres. Le symbole de code à barres est constitué d'une pluralité de valeurs de caractères codés, dont chacun correspond à un motif d'une pluralité de motifs de barres prototypes, où chacun des motifs de barres prototypes a un jeu associé de valeurs de caractères de largeurs de barres prédéterminées. Le jeu d'estimations d'informations de largeurs de barres est représentatif d'une valeur de caractère enregistrée dans le symbole de code à barres. Le jeu d'estimations de largeurs de barres est comparé à un jeu choisi de valeurs de caractères de largeurs de barres prédéterminées. Sur la base de cette comparaison, on détermine si la valeur du caractère enregistrée dans le symbole de code à barres correspond au jeu choisi de valeurs d'informations de largeurs de barres prédéterminées.
Patent CA-2187352-A1 (CA)
Inventor: WISE JOHN
IPC: B29C48/90
Filed: 1995-04-07
Abstract: An improved manifold assembly (10) which can be used in conjunction with a die head (17) in the extrusion of a plastic with the manifold assembly (10) including a water inlet tube (150), a tube (140) through which a vacuum is pulled, a water return tube (130), a calibration finger (16) first section (25), and a calibration finger (16) second section (26).
Patent CA-2187994-A1 (CA)
Inventor: GEIB RICHARD CARTER
IPC: G01H3/08
Filed: 1996-10-16
Abstract: A device for testing mechanical devices using sonic signature correlated to determined parameters to predict the operability of such devices.
Patent CA-2191428-A1 (CA)
Title: Seal device
Inventor: MERKIN ROBERT A
IPC: F16J15/447
Filed: 1995-05-30
Abstract: A system for providing a seal between a housing (18) and a shaft (22) is formed of at least two ring members (12, 14) connected to each other by relative diametrical expansion with reduced or eliminated axial resilient deformation. The ring members may be held together by an annular protrusion (70) located within a recess (68). To eliminate play between the protrusion and the recess, the device may be assembled by heating the recess and inserting the protrusion into the recess while the recess is expanded. The improved system can be accurately assembled, with the ring memberslocated very close to each other. The system has improved oil retention and water exclusion properties.
Patent CA-2192005-A1 (CA)
Inventor: REKRET ANDREW
IPC: C12Q1/68
Filed: 1996-12-04
Abstract: A hinged panel door comprises a plurality of thermoplastic panels each having a main body with an outside wall, an inside wall, an open ended female receptacle formed centrally in one end and a male receptacle protruding centrally from the other end of the main body. The male connector has a rounded head and a neck joining the head to a shoulder on the main body of the panel. Both the head and the shoulder are wider than the neck. The female receptacle is formed by a rounded wall circumscribing the major part of a circle and interrupted by a mouth having a width slightly greater than that of the neck of the male connector. The inner wall of the panel is shorter than the outer wall which provides a one way hinged connection between the receptacle of one of the panels and the connector of another one of the panels.
Patent CA-2192464-A1 (CA)
Title: A cathode material for lithium secondary batteries and a process and a precursor material for the production thereof
Inventor: KELDER ERIK M
IPC: C01G49/00
Filed: 1995-06-09
Abstract: A novel type of cathode material for construction of cathodes for high voltage lithium secondary batteries is disclosed. The new cathode material contains as its active ingredient spinel lithium manganese oxide and comprises furthermore an inactive cathode material containing .alpha.-Mn2O3 and/or Li2MnO3. This cathode material exhibits a higher lithium chemical diffusion coefficient than otherwise obtained for pure spinel Li1+xMn2O4. In addition, a process for the preparation of the cathode material is disclosed, said process being economically advantageous and easy to perform on an industrial scale. This process comprises forming a melt from manganese acetate, lithium hydroxide and water, keeping the melt at a temperature in the range of 70 to 110 ~C for a period of from 10 minutes to 4 hours under stirring so as to form an essentially homogeneous material, and drying said material followed by calcination at a temperature in the range of 300 to 800 ~C.
Patent CA-2192741-A1 (CA)
Inventor: PETER HANS
IPC: F23R3/12
Filed: 1996-12-12
Abstract: In a premixing burner (100), which is composed essentially of at least two conical part shells  (101, 102) fitted one in the other in the direction of flow, their longitudinal axes of symmetry are offset relative to the burner axis  in such a way that  the adjacent walls of these part shells form, in their longitudinal extent,  tangential  air  inlet  slits  (119,  120).  A combustion air stream  (115)  flows through these into the interior (114) of the premixing burner. Arranged on the head side of the premixing burner is a nozzle (103) which is preferably operated by means of a liquid fuel (112), whilst arranged along the tangential air inlet slits are further nozzles  (117)  which are preferably operated by means of a gaseous fuel  (113).  The  fuel line  for  supplying the  last-mentioned  fuel (113) is formed by a continuation of the respective part shell, in that the end of the latter is bent round in the region of the tangential air inlet slits and is closed in a sealed manner relative to the corresponding part shell outside the inflow region of the tangential air inlet slits.
Patent CA-2194684-A1 (CA)
Title: Cannabinoid receptor antagonists
Inventor: KOPPEL GARY ALLEN
IPC: A61P25/28
Filed: 1995-07-06
Abstract: This application discloses that certain arylbenzo¢b!thiophene and benzo¢b!furan compounds block or inhibit cannabinoid receptors in mammals. It also discloses novel compounds which are antagonists of the cannabinoid receptors, and pharmaceutical formulations which contain the compounds.
Patent CA-2196416-A1 (CA)
Title: Recombinant herpes virus with gb gene promoter
Inventor: SONODA KENGO
IPC: C07K16/00
Filed: 1996-05-28
Abstract: A recombinant Herpesvirus capable of effectively expressing the target alien protein in a host animal which has been inoculated therewith and exerting an excellent immunological effect. The recombinant Herpesvirus has an alien gene expression cassette integrated thereinto wherein a gB gene originating in Herpesvirus (a gene homologous with Herpes simplex virus gB gene) promoter is employed as a promoter for the expression of the alien gene.
Patent CA-2197104-A1 (CA)
Inventor: HALM HANS
IPC: A45D40/02
Filed: 1997-02-07
Abstract: The invention relates to an adhesive stick having a plunger anchoring the stick composition and a sleeve surrounding the stick composition, in which the propelling device for the upward and downward moving of the stick composition, which device at the same time serves as the actuating element,  is formed together with the sleeve and the plunger as a one-part injection moulding. This propelling and actuating element (1) is designed in the form of a plate and is provided with lateral reinforcing webs  (2)  and is bonded on both sides to the plunger plate (0); it has at the vertex a pressure plate (3). Anchorage elements for the stick composition on the plunger plate (0) are designed in the form of bristles (6).
Patent CA-2198121-A1 (CA)
Inventor: SMITH KEVIN
IPC: H01S3/067
Filed: 1995-08-22
Abstract: An optical pulse generator comprises a FM mode locked laser that is configured to produce dark optical pulses. The laser comprises a cavity (M1, M2) and a Pr3+ doped fluoride fibre (3) pumped by a source (1). The output is mode locked by a phase modulator comprising a silica fibre (2) in the cavity that receives modulating pulses from a DFB laser (7), so as to alter the refractive index of the fibre (2) and cross phase modulate the laser light. The phase modulation combines with the dispersive effect of the fibre (3) to produce dark output pulses.
Patent CA-2198808-A1 (CA)
Inventor: DU PLESSIS JOSEPH ALBERTUS
IPC: E21D11/04
Filed: 1997-02-28
Abstract: A pillar bag which is made from a synthetic fabric which is folded, at vertically spaced intervals, to form a number of sheaths, with each sheath housing a reinforcing ring.
Patent CA-2200021-A1 (CA)
Title: Ballast for gas discharge tubing
Inventor: MIGNAULT PETER R
IPC: G09G3/00
Filed: 1997-03-14
Abstract: A system for controlling signage comprised of plural gas discharge lamps, comprising a ballast associated with each gas discharge tube, each ballast comprising a variable voltage converter unit coupled to a gas discharge tube and a communication module, apparatus for transmitting control signals between the ballasts via the communication modules for controlling the converters and thus controlling operation of the gas discharge lamps to provide special display effects.
Patent CA-2201923-A1 (CA)
Inventor: HART GERALD L
IPC: C11D1/75
Filed: 1995-10-05
Abstract: An aerosol foam cleaning composition for carpets and soft-furnishings is provided with a fluorine-containing stain repellent, the proportions of stain repellent, foam-stabilizer polymer, surfactant, and foam booster being balanced to provide a stable foam, i.e. one which does not release hydrocarbon propellant at such a rate as to create flammability problems, with adequate cleaning properties and an adequate residue of stain repellent.
Patent CA-2202874-A1 (CA)
Title: Hyperbranched macromolecule of polyester type
Inventor: PETTERSSON BO
IPC: A61K6/884
Filed: 1995-10-17
Abstract: A hyperbranched macromolecule of polyester type comprising a central monomeric or polymeric nucleus and at least one generation of a branching chain extender having at least three reactive sites of which at least one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and at least one is a carboxyl or terminal epoxide group. The nucleus is an epoxide compound having at least one reactive epoxide group. Optionally, the macromolecule comprises at least one generation consisting of at least one spacing chain extender having two reactive sites of which one is a hydroxyl or hydroxyalkyl substituted hydroxyl group and one is a carboxyl or terminal epoxide group. The macromolecule may be terminated by means of at least one chain stopper.
Patent CA-2204502-A1 (CA)
Title: Care station for toothbrushes
Inventor: HECKER FRITHJOF
IPC: A47K1/09
Filed: 1995-11-24
Abstract: In a toothbrush cleaning station, the bristles (19) of a toothbrush (16) are brought into contact with a disinfectant. The toothbrush cleaning station has a spraying device (5) for the disinfectant to be sprayed on the bristles (19) and a support for the bristles (19) of the toothbrush (16) in the disinfectant spraying area. A holder (3) holds the toothbrush (16) and at the same time forms a holder (4) for the can-shaped spraying device (5). The holder (4) for the spraying device (5) retains it in a position in which the bristles (19) of the toothbrush (16) remain in the disinfectant spraying area.
Patent CA-2206291-A1 (CA)
Inventor: YOUKHNA KARAM MERZA
IPC: A41D25/00
Filed: 1997-06-10
Abstract: The present invention concerns a long tie (1) or a bow-tie  (6)  or  a  tie  of  any  other  shape, prefabricated together with the knot (3), out of paper material derived from cellulose, painted and/or printed (4), provided with means (5) for its installation around the shirt collar.
Patent CA-2207584-A1 (CA)
Title: Peer-peer frequency hopping spread spectrum wireless system
Inventor: LEE WILSON
IPC: H04J13/00
Filed: 1997-06-11
Abstract: A peer-peer frequency hopping spread spectrum wireless system allows the implementation of full duplex voice/data communications in a single hop peer-peer wireless system.  The system uses frequency hopping spread spectrum technique.   The frequency band is divided into signalling and message channels.  The signalling channels use TDMA with a media access control(MAC) protocol developed for the wireless terminals to access the signalling channels.  Once a wireless terminal accesses a time slot on a signalling channel, the corresponding hopping pattern on the message channel is assigned.  The message channels use frequency hopping.  The hopping patterns of the message channel are chosen such that there is no co-channel interference and minimum adjacent channel interference in the system. Either analog or digital modulation schemes can be used. Synchronization of a transmitter-receiver pair (user-pair) and among user-pairs are achieved through the use of the signalling channels.
Patent CA-2208266-A1 (CA)
Inventor: HOFFMAN ROGER P
IPC: D21F1/48
Filed: 1995-08-29
Abstract: Cette invention se rapporte à un système d'eau pour la fabrication de papier, qui utilise de l'eau comme joints hydrauliques des pompes à vide et qui n'entraîne aucune décharge d'eaux usées de ces joints hydrauliques. A cet effet, un groupe de pompes à vide à joints hydrauliques (1) est employé dans une machine à papier, afin de générer une pression inférieure à la pression atmosphérique dans l'installation d'aspiration (2) et afin d'extraire ainsi l'eau provenant des bandes de papier humides. Pendant le fonctionnement des pompes à vide (1), l'eau des joints hydrauliques est chauffée et cette eau chauffée est déchargée dans une tour de refroidissement (6) qui refroidit l'eau, laquelle est ensuite remise en circulation dans les pompes à vide (1). La vapeur provenant d'un générateur de vapeur (13) est fournie aux tambours de séchage se trouvant dans la section de séchage (15) de la machine à papier et le condensat de vapeur est combiné avec l'eau des joints hydrauliques chauffée s'écoulant jusqu'à la tour de refroidissement. En utilisant ce condensat de vapeur comme eau d'appoint, aucune accumulation d'ions ne se produit dans le système fermé et une eau de haute qualité est retirée du système fermé et peut être utilisée dans d'autres sections de la machine à papier, de sorte qu'il n'y a aucune décharge d'eau des joints hydrauliques dans le système d'égouts.