baber/WOPTO huggingface dataset:
Patent CA-2029940-A1 (CA)
Inventor: COHEN GERARD
IPC: A61P5/00
Filed: 1990-11-14
Abstract: L'invention concerne l'usage de nouvelles microsphères injectables biodégradables renfermant un copolymère d'acide lactique et glycolique et un stéroïde anti-oestrogène ou anti-progestomimétique. L'invention concerne aussi un procédé de préparation de ces nouvelles microsphères et des suspensions injectables les renfermant.
Patent CA-2030274-A1 (CA)
Title: Method for producing a high reactive alloy
Inventor: NAKAMURA HIDEO
IPC: C22C1/02
Filed: 1990-11-19
Abstract: ABSTRACT OF THE DISCLOSURE A  method  for  producing  a  high  reactive  alloy comprises the steps of producing an alloy containing a metal  having  a  high melting point temperature and A?, crushing the alloy to  form granules of  alloy,  mixing said granules of alloy with metallic granules having a high  melting  point  temperature,  which  has  components other than components constituting the alloy, to form a mixture  of  the  granules  of  alloy and  the  metallic granules,  pressing the mixture into a compact to form the  compact,  and  melting  the  compact  by  means  of electron beams, A? in the alloy being evaporated.      The alloy has a melting point temperature of 1650°C or more.      The metal is at least one selected from the group consisting of Ti, Nb, Mo, W, Zr, Ta and V.      The alloy  is  produced  by means  of  an aluminium thermite process.
Patent CA-2030767-A1 (CA)
IPC: A61M37/00
Filed: 1990-11-23
Abstract: A subcutaneously implantable medication infusion device includes a variable capacity reservoir (22) for receiving and storing fluid medication for delivery to a cathether (26) which directs the medication to a specific infusion location in the body. A control assembly (28) is interposed between the reservoir (22) and the catheter (26) to facilitate and control the transfer of the medication from the reservoir (22) to the catheter (26) in a safe and efficient manner. The control assembly (28) includes a self-recharging pump (50) and a normally closed valve (52), both of which are manually actuable by percutaneous pressure when subcutaneously implanted, and defines a portion of a fluid flow conduit (24) between the reservoir (22) and the catheter (26). The control assembly (28) is constructed to permit the infusion of a measured bolus of medication on demand through manual percutaneous manipulation of the control assembly (28) to limit the rate at which the pump (50) is recharged with medication, to restrict the total amount of medication which can be pumped into the catheter (26) over a given period of time. In one preferred form, the pump recharge restriction is created by providing at least one capillary-like fluid pathway (110) through which the recharge fluid must pass before entering the pump (50). In another preferred form of the invention, the recharge flow rate of medication into the pump (50) is restricted by a wick restrictor (118). <IMAGE>   <IMAGE>
Patent CA-2031393-A1 (CA)
Title: Tablets with controlled-rate release of active substances
Inventor: CONTE UBALDO
IPC: A61K47/14
Filed: 1990-12-03
Abstract: Tablets with controlled-rate release of the active substances, consisting of a core of defined geometrical form containing the active substance, polymer substances which swell on contact with aqueous liquids and polymer substances with gelling properties, and a support applied to said core to partly cover its surface, the support consisting of polymer substances which are slowly soluble and/or slowly gellable in aqueous liquids, plasticizing substances, and possibly substances with an adjuvant function.
Patent CA-2032691-A1 (CA)
Inventor: ECKELT MANFRED
IPC: B65G61/00
Filed: 1990-12-19
Abstract: A system for managing a plurality of motor vehicles that are driven by different people is provided. A parking area having an entrance and an exit is provided with a data acquisition device for controlling user access, as well as a receiver that is disposed in the vicinity of a barrier and that receives vehicle operation data that is transmitted by a transmitter that is integral. with the vehicle, with this data being transmitted to a central control unit that controls the barriers, the data acquisition device, and the receiver.
Patent CA-2033393-A1 (CA)
Inventor: TUSICK JUDITH H
IPC: B65D43/16
Filed: 1990-12-28
Abstract: A generally rectangular transparent and clear container for packing pressure-sensitive adhesive sheet stock which has a base and a cover that engage with each other with a snap action to establish a generally continuous closure around the perimeter of the container.  The base has a raised bottom portion which has formed therein a series of spaced apart channels which are parallel to the end walls of the base, and a series of spaced apart channels which are parallel to the side walls of the base.  A plurality of raised pads are formed between the channels which support the pressure sensitive adhesive sheet stock above a border channel which defines the perimeter of the base.
Patent CA-2035315-A1 (CA)
Inventor: SMITH DAVID A
IPC: B65H45/28
Filed: 1991-01-30
Abstract: ABSTRACT        An apparatus and method for making individual flexible web products whereby a web material is tucked outwardly from the surface of a product drum by fixed projections, severed and sealed, and provided to one or more transfer points.  The products are there transferred to one or more transfer drums with corresponding indentations, which deliver the products to packing devices.  An alternative embodiment provides multiple delivery points by using lateral-shifting transfer drums. The apparatus and method provides a simple means to vary and control flexible product width without introducing a multiplicity of moving parts, and discloses means to enhance separation of individual products during transfer while increasing overall production rates.     36,808B-F
Patent CA-2039562-A1 (CA)
Title: Polyetherimide foam procursors and foams having improved physical properties and methods of making them
Inventor: HILL FRANCIS U
IPC: C08G73/10
Filed: 1991-04-02
Abstract: ABSTRACT OF THE DISCLOSURE            A method of making polyetherimide foam precursors and flexible polyetherimide foams having improved specific tensile strength, resistance to high temperatures and flame, low density and flexibility at both high and cryogenic temperatures. 4,4'-oxydiphthalic anhydride (ODPA) is reacted with an alcohol to produce a diester, which is then reacted with a suitable monomeric polyamine such as meta phenylene diamine to produce a precursor. This material is dried to a solid block or powder. Upon heatinq, foaming occurs, resulting in a fine celled white friable mass. The foam is cured by heating for a suitable period and is ready for use.
Patent CA-2040024-A1 (CA)
Inventor: GERINGER ARTHUR
IPC: E05C19/16
Filed: 1991-04-08
Abstract: The improvement is in an electromagnetic door lock device which is connected to the underside of the top of a door frame.  An armature is attracted to the energized electromagnet and is connected to the top of the door for movement between a resting unlocked position directly on top of the door and an upwardly extending locked position adjacent the underside of the energized electromagnet.  The armature which has a protrusion extending from one or both of the two opposite sides and the electromagnet carries one or a pair of tab plates connected to one or both of the opposite ends of the electromagnet and having a depending tab which intercepts the armature only when the latter is in the upwardly extended position, so as to lock the door shut.  The improvement also includes a pair of depending tabs on each tab plate defining a preferably rectangular notch therebetween, which notch extends up from the bottom of the plate and is substantially wider than the preferably rectangular protrusion and is adapted to receive it to lock it in place.  The two tabs of each tab plate are disposed predetermined distances from the vertical centerline of the tab plate so that the relative position of the tabs are adjustable by reversing the tab plate.  The protrusions can have carrying width and be removably attached to the armature.  The brackets and tab plates can be integral with or without the electromagnet.
Patent CA-2042347-A1 (CA)
Title: Multi-layer polymer, thermoplastic resin composition containing the same, and shaped article produced using the composition
Inventor: FUJII TATSUO
IPC: C08L67/02
Filed: 1991-05-10
Abstract: There is disclosed a multi-layer polymer which comprises a core layer formed from an aromatic vinyl monomer, an intermediate rubbery polymer layer formed from an alkyl acrylate monomer wherein the alkyl has 2-8 carbons and a glassy polymer shell layer formed from an aromatic vinyl monomer.      There is also disclosed a polycarbonate resin composition and a polycarbonate-polyester resin composition which contains the multi-layer polymer.  The resin compo-sition provides shaped articles which have improved impact resistance, and also high evenness in color when the compo-sition contains a coloring agent.
Patent CA-2042397-A1 (CA)
Title: Thickened fumigant compositions
Inventor: YOUNG DONALD C
IPC: A01N59/06
Filed: 1990-09-27
Abstract: +                            ABSTRACT      Viscous fumigant compositions comprise carbon disulfide precursors, such as thiocarbonates, xan-thates, and dithiocarbamates, that decompose upon application to release carbon disulfide.  The composi-tions exhibit an improved active life when applied, for example, to soil.
Patent CA-2045458-A1 (CA)
Title: Impact bucket apparatus
Inventor: ROUSSIN MICHAEL A
IPC: E02F3/40
Filed: 1990-02-12
Abstract: Impact buckets are useful, for example, in fracturing rock and other hard material which is to be excavated. Known systems using vibrating mechanisms which are mechanically coupled to a cutting edge assembly do not produce forces high enough to efficiently fracture the rock or other hard material and send destructive vibration forces to the base vehicle. The subject impact bucket apparatus (10) uses an impact hammer (18) which is impact coupled to a cutting edge assembly (16) to fracture rock and other hard material. This results in a force controlled system in which displacement varies with material resistance. The force levels achieved by the impact coupled system are higher than the vibrating system.  Thus, the disclosed impact bucket apparatus (10) can produce higher force levels which can more efficiently fracture the rock or the other hard material without sending destructive vibration to the base machine.
Patent CA-2051114-A1 (CA)
Title: Article de resine forme et methode de production connexe
Inventor: HORIKOSHI MAKI
IPC: B29C44/04
Filed: 1990-12-20
Abstract: Article en résine modelé présentant une construction à deux couches dans laquelle le côté extérieur d'une âme en résine, moussée à un taux de pores variant entre 30 % et 80 %, est recouvert d'une pellicule en résine.  La méthode de fabrication de cet article en résine modelé comprend l'injection d'une pellicule en résine dans un moule et ensuite, ou simultanément, l'injection dans le moule d'une âme en résine moussée à l'avance dans un dispositif de moulage.
Patent CA-2051367-A1 (CA)
Inventor: UTTLEY DENNIS
IPC: E21B43/00
Filed: 1991-09-13
Abstract: Very viscose oil and/or oil that may contain water and unconsolidated sands and/or other solids, is received from an oil well or from a plurality of oil wells and mixed into the stream of a fluid circulating system which is in communication with a common production collecting facility located at ground surface. The production collecting facility may be in close proximity to, or a considerable distance from the oil well(s).      The stream of the fluid circulating system acts as a carrier stream to receive, entrain and convey very viscose oil and/or solids contaminated oil production from the oil well(s) to the common fluid collecting facility, at reduced fluid flow friction factors within the conveying conduits, and without the occurrence of preapitated solids blockages within the conveying conduits. Within the production collecting facility, contaminants, oil and carrier fluid are separated and stored for shipping and disposal.    The heated carrier fluid acts to transfer heat to the oil and contaminants, prevents the fluids within the system from freezing, and aids in the preliminary and final separation of oil from the contaminants.
Patent CA-2053346-A1 (CA)
Title: Microcapsule compositions for torical treatment
Inventor: FRANCIS SHEILA E
IPC: A61K45/00
Filed: 1991-10-11
Abstract: A  composition  for  topical  application  contains microcapsules, for example liposomes which enclose a benefit agent active at a target location accessible by topical application.   The microcapsules have means to bind to an organic surface at the target location; for example, they are provided with an antibody or antibody fragment specific for the target location or with a lectin.  The composition is preferably for administration of an oral benefit agent.
Patent CA-2054951-A1 (CA)
Title: Mail piece weight monitoring system and method
Inventor: SANSONE RONALD P
IPC: G07B17/00
Filed: 1991-11-05
Abstract: This invention relates to a system for and method of determining the accuracy of mail piece weights. The weight of individual mail pieces during a mail run is displayed in real time. A high speed weighing scale is located downstream from the mail processing unit to receive the mail pieces after the mail processing unit has inserted selected materials into envelopes. As each mail piece is weighed, its weight is stored in memory and a display can be made showing all the weights of the individual mail pieces in real time. This display can be temporary, such as on a monitor, or permanent, such as a print out. With such display, an operator has a fast method of determining if the weights are in an expected range.
Patent CA-2055995-A1 (CA)
Title: Game table with drawer pockets
Inventor: FALDAS NOEL
IPC: A63D15/00
Filed: 1991-11-21
Abstract: ABSTRACT OF THE DISCLOSURE          A table for a table top game, has a flat top, a raised border around the flat top and pockets for receiving playing pieces movable over the flat top and into the pockets.  Each of the pockets comprises a pocket opening through the table top and a movable drawer beneath the pocket opening in which the playing pieces are collected after passing through the pocket opening.
Patent CA-2057249-A1 (CA)
Title: Signal conditioning logic
Inventor: GOSS DOUGLAS A
IPC: G06F11/22
Filed: 1991-12-09
Abstract: ABSTRACT                      SIGNAL CONDITIONING LOGIC      An apparatus for conditioning signals output from a computer system expansion card to a computer system board to test system board bus specifications and timing limits.  The apparatus comprises two signal conditioning extension cards which are used to condition signals from a slave card and a bus master card.  The signal conditioning extension cards according to the present invention are interposed between the bus master or slave expansion card and the system board and selectively advance or delay the signals output from the expansion card to the system board.  The slave signal conditioning card also selectively delays the read data valid window of the slave card to test the limits of the system board.  The bus master signal conditioning card selectively delays the write data valid window of the bus master card to test the limits of the system board.
Patent CA-2057669-A1 (CA)
Inventor: NEMPHOS SPEROS P
IPC: D21H17/20
Filed: 1991-12-13
Abstract: Coated Webs ABSTRACT OF THE DISCLOSURE Biodegradable polymers may be used as binders for impregnating or coating fibrous webs. The resulting web is degradable and also the fibers within the web may be more easily recycled.
Patent CA-2058955-A1 (CA)
Title: Isolation growth and differentiation of human muscle cells
Inventor: BLAU HELEN
IPC: A61P43/00
Filed: 1990-06-13
Abstract: Myoblasts are produced in low or serum free medium for use in introduction of mammalian host, particularly human host, for treatment of diseases of muscle tissue or acting as carriers for genetic capabilities, particularly the production of soluble protein products which may serve in the therapy of the mammalian host.
Patent CA-2059810-A1 (CA)
Inventor: METZ JEAN
IPC: F27D3/15
Filed: 1992-01-22
Abstract: CANON A ARGILE POUR MACHINE A BOUCHER LES TROUS DE COULEE DE FOURS A CUVE La présente invention concerne un canon à argile pour machines à boucher les trous de coulée de fours à cuve. Un tel canon comprend une chambre à argile cylindrique (10), un nez (12) à section réduite et une pièce tronconique (14) reliant la chambre à argile au nez, ainsi qu'un piston hydraulique coulissant dans la chambre pour éjecter la masse de bouchage à travers le nez. Le nez (12) est relié à la pièce tronconique (14) par l'intermédiaire d'au moins une charnière afin de pouvoir ouvrir le nez par pivotement. Cette possibilité de pivotement du nez (12) implique nécessairement la présence d'un joint (16) entre le nez (12) et la pièce (14). Dans la présente invention, le joint (16) est profilé en forme de "V" et est formé par une surface de joint (18) à section pointue et une surface de joint (20) adjacente complémentaire à section creuse. Figure unique.
Patent CA-2061542-A1 (CA)
Inventor: DU MESNILDOT FRANCOIS
IPC: H01Q1/02
Filed: 1992-02-19
Abstract: RESEAU D'ANTIGIVRAGE POUR ANTENNE RADAR L'invention est relative à un réseau d'antigivrage permettant de neutraliser les effets d'une impulsion électromagnétique nucléaire ou de champs électromagnétiques parasites provenant d'autres radars émettant dans le voisinage. Ce réseau d'antigivrage comporte une nappe de fils conducteurs (21) disposés sur un écran (20) place devant l'ouverture de l'antenne radar et raccordés selon des combinaisons série-parallèle aux bornes (28, 29) de raccordement d'une source d'alimentation de manière à être parcourus chacun par un courant de chauffage. Il est remarquable en ce que les fils conducteurs (21) de la nappe et leurs interconnexions dessinent sur l'écran (20) au moins une paire de motifs (22, 23 ou 24, 25) symétriques par rapport à un axe (AA' ou BB'), cette symétrie assurant une neutralisation par opposition des forces électromotrices induites. FIGURE 2
Patent CA-2067832-A1 (CA)
Title: Polymer latices from vinyl acetate and vinyl esters of branched chain carboxylic acids
Inventor: COPPIN LINDA L G
IPC: C08F18/02
Filed: 1992-05-01
Abstract: A B S T R A C T       POLYMER LATICES FROM VINYL ACETATE AND VINYL ESTERS      OF BRANCHED CHAIN CARBOXYLIC ACIDS      The invention provides polymers vinyl pivalate, a vinyl ester of a branched chain carboxylic acid having in the acid moiety 10 carbon atoms and vinyl acetate obtainable by emulsion polymer-ization in the presence of a protecting colloid; latices containing such polymers and their preparation; coating compositions compris-ing such latices; and solid polymeric products such as redisper-sible latex powders formed by physical drying of such latices.     The above polymers provide attractive combination of proper-ties to latices and coatings.
Patent CA-2068277-A1 (CA)
Title: Purification of propylene oxide by liquid extraction
Inventor: SMITH WILLIAM A
IPC: C07D301/32
Filed: 1992-05-08
Abstract: PURIFICATION OF PROPYLENE OXIDE BY LIQUID EXTRACTION      (Docket No. 80,919-F) ABSTRACT OF THE DISCLOSURE    Purified propylene oxide is recovered from an impure propylene oxide feedstock contaminated with more than 50 ppm of six carbon atom hydrocarbon impurities by a solvent extraction process wherein: an impure propylene oxide feedstock is charged to a liquid/liquid extraction zone and contacted therein with an extractant consisting essentially of water and a paraf-finic hydrocarbon containing 8 to 10 carbon atoms, and resolved therein into a raffinate consisting essentially of an aqueous solution of propylene oxide and into an extract comprising the paraffinic hydrocarbon and the 6 carbon atom impurities initially present in the propylene oxide feedstock.
Patent CA-2070865-A1 (CA)
Title: Purification of propylene oxide by extractive distillation
Inventor: MARQUIS EDWARD T
IPC: C07D303/04
Filed: 1992-06-09
Abstract: PURIFICATION OF PROPYLENE OXIDE   BY EXTRACTIVE DISTILLATION  (Docket No. 81,112-F) ABSTRACT OF THE DISCLOSURE      An extractive distillation agent consisting essentially of triethylene glycol is fed to an extractive distillation column used for the distillation of propylene oxide contami-nated with water, acetone and methanol to obtain an overhead distillate  fraction  consisting  of  essentially  anhydrous propylene  oxide  contaminated  with  reduced  quantities  of acetone and methanol,  and a heavier bottoms distillation fraction containing substantially all  of the triethylene glycol, water and acetone and some of the methanol introduced into the distillation column.
Patent CA-2072828-A1 (CA)
Title: Ozone generator
Inventor: LUSCOMBE-MILLS RICHARD
IPC: C01B13/11
Filed: 1992-06-30
Abstract: ABSTRACT         Disclosed is an improved electrode structure for ozone generation.  The structure includes a dielectric, such as aluminum oxide in the form of a thin alumina ceramic plate, mounted between and separated from two parallel and closely spaced planar metal electrodes of a chemically stable metal such as titanium.  The structure is designed so that the dielectric plate can be readily inserted into or removed from an insulating frame holding the metal plates.  The insulating frame material is suitable for high voltage applications and is designed so that the metal plates are held parallel to one another at a predetermined small spacing, and also contains suitable guides for the dielectric plate so that it can be easily inserted between the metal plates and held in position.  The dielectric plate is larger in outer dimensions than the opposing metal plates such that this distance prevents the possibility of electric arcing between the metal plates, and the insulating frame prevents arcing between the metal plates and any grounded support structure.  As the dielectric plate can be easily inserted into or removed from the frame with a simple sliding action, the design enables a handle and a cleaning pad to be attached to the dielectric plate such that dust and particulate contamination can be readily removed from the gaps between the metal plates and the dielectric plate.  This permits easy cleaning of the ozone generator without dismantling the structure.
Patent CA-2073393-A1 (CA)
Title: Process for preparing manganese complexes
Inventor: KERSCHNER JUDITH
IPC: C07F13/00
Filed: 1992-07-08
Abstract: Abstract A process for preparing a dinuclear manganese complex of formula (A)                (A) wherein:-Mn represents manganese in the III or IV oxidation state, each X is independently a co-ordinating or bridging species selected from H2O, O2-, O2-, OH-, SH-, S2-,  , Cl-, N3-, SCN-, N3-, RCOO-, NH2- and NR3 where R is hydrogen, alkyl or aryl (optionally substituted); L is a ligand which is an organic molecule containing at least three nitrogen atoms which coordinate to a manganese centre; Z represents the charge of the complex and is an integer which may be positive or negative; Y is a monovalent or multivalent counter-ion leading to charge neutrality, which is dependent upon the charge Z of the complex; and q = z/[charge Y], the process comprising the steps of:-(i)  reacting an Mn(II) salt with at least an equivalent amount of a compound comprising the ligand L to form said manganese complex characterised in that the reaction is carried out in a non-aqueous solvent; and (ii) optionally, oxidising the manganese complex formed in step (i) with an oxidising agent.