baber/WOPTO huggingface dataset:
Patent NO-177752-C (NO)
Inventor: REDFORD KEITH
IPC: C08J9/00
Filed: 1993-02-11
Abstract: Method for the production of hard PVC foam, where (a) an initial mixture containing PVC, a blowing agent, plasticiser/solvent, stabiliser, a poly or diisocyanate compound, and optionally other additives is produced; (b) the mixture is transferred to a mould and heated under pressure to give a homogeneous material in which the blowing agent decomposes; after which (c) the material may be cooled to around room temperature; and (d) the material is exposed to a temperature close to its softening temperature. To the initial mixture in step (a) a mono- or poly-alcohol having the formula R(OH)n is added, where R may be saturated or unsaturated, optionally heteroatom containing, alkyl, cycloalkyl, arylakyl, aryl, and n is a whole number greater than zero. The alcohol brings about the formation of water which promotes the curing of the polymer foam, thus the polymer foam is ready for application or further processing immediately after production, and the need for time consuming cure by external water penetration is eliminated.
Patent AU-746333-C (AU)
Title: Additive composition for paper making
Inventor: LUUKKONEN KARI
IPC: D21H17/00
Filed: 1999-07-07
Granted: 2003-10-16
Abstract: The object of the present invention is an additive composition for paper making which is added to the pulp prior to web formation in order to increase the wet strength of the web. The basic component of the composition is a component made from starch, which to its molecular weight has been thinned to a viscosity level of 10 to 400 (5%, 60° C., Brookfield) which by solution cationizing using a quaternary nitrogen compound is cationized to a charge of <4 mEkv/g, the composition containing at least one additional component selected from 1) a starch-based polymer dispersion which contains starch and a monomeric graft copolymer, providing a polymer having a film formation temperature of -50 to 200° C., and 2) polyamide epichlorhydrin resin (PAAE).
Patent CA-2000995-C (CA)
Inventor: DHONG SANG H
IPC: G11C11/408
Filed: 1989-10-20
Granted: 1994-11-08
Abstract: Two embodiments of a wordline boost clock circuit that can be used in high speed DRAM circuits are disclosed.  The clock circuits require only one boost capacitor and discharge the wordlines faster, improving the DRAM access time.  The basic feature of the clock circuit is in the floating gate structure of the nmos device which drives the load to negative during the boosting.  In the first embodiment of the clock, the gate of a first device is connected to a first node through a second device.  A second node, connected to a wordline, is discharged through the first and a third device when a third node is high with a fourth node low.  After a sufficient discharge of the second node, the fourth node is pulled to VDD turning the second device on and a fourth device off.  The first (NMOS) transistor has its gate and drain connected together and forms a diode.  When a boost capacitor pulls the third node down to negative, the first device stays completely off because of its diode configuration and the second node is pulled to negative through the third device.  In the second embodiment, a first device is connected between a boost capacitor and a second node.  The load is discharged through a third device with a fourth device on but a first and second device off.  After a sufficient dis-charge of the load, a fourth device is turned off but a second device is turned on, making the third device a diode.  When a fifth node is pulled to ground, the second node is pulled down to negative with the first device on.  In the second embodi-ment circuit, the load discharges through only one nmos device and consequently discharges faster than the circuit of the first embodiment.
Patent CA-2006706-C (CA)
Title: Antiplaque antibacterial oral composition
Inventor: NABI NURAN
IPC: A61Q11/00
Filed: 1989-12-27
Granted: 1997-09-16
Abstract: An oral composition dentifrice comprising an orally acceptable  vehicle,  about  5-30%  by  weight  of  a  siliceous polishing agent, about 0.5 to less than 0.5%, preferably about 0.25-0.35%  by  weight  of  a  substantially  water-insoluble noncationic antibacterial antiplaque agent, such as 2,4,4'-trichloro-2'-hydroxydiphenyl   ether   (triclosan)   and   an antibacterial-enhancing agent which enhances the delivery of said antibacterial agent to, and retention thereof on, oral surfaces.
Patent CA-2007426-C (CA)
Title: Latch assembly for an electrical load center door, and method of assembly thereof
Inventor: BUCHANAN JEFFERY JAMES
IPC: H02B1/40
Filed: 1990-01-09
Granted: 2001-04-10
Abstract: An electrical distribution load center consists of a non-conductive enclosure and a circuit breaker bus bar support panel that are interconnected by interlock members that can be snap-fitted to secure the two panels to each other. The support panel also has a latch member so that the bus bars can be mounted onto the panel in a heat-staking, insert-molded or snap-fit arrangement. The support-panel also has elements for locking the circuit breakers onto the panels in conducting contact with the bus bars. The enclosure and the support panel are enclosed by a non-metallic trim panel that has a non-metallic door hinged thereto and which carries a latch for latching the door to the trim panel.
Patent CA-2013990-C (CA)
Title: Valve actuator two rotor three position indicator
Inventor: WILKINSON IVAN E
IPC: F16K37/00
Filed: 1990-04-05
Granted: 1994-10-04
Abstract: A two-rotor, three-position indicator for a valve actuator is connected to receive rotary input from at least two independ-ently operating rotors connected inside the geared limit switch of a valve actuator.  Individual drive lugs moved interconnected gearing to cause a pointer to indicate whether the valve stem is open, closed or in-between those two oppositely disposed limits.
Patent CA-2014017-C (CA)
Title: Cationically electrodepositable resin composition
Inventor: TOMINAGA AKIRA
IPC: C08G59/32
Filed: 1990-04-06
Granted: 2000-09-26
Abstract: A cationically electrodepositable resin composition containing as main component primary hydroxyl group-containing cationic resin obtained by reacting epoxy resin (A) having at least three epoxy group-containing functional groups represented by the following structural formula (I)   with primary or secondary amine compound (B) containing primary hydroxyl group and optionally, further phenol compound (C) having at least one phenolic hydroxyl group in one molecule, as well as a cationically electro-depositable paint composition containing as main components said cationic resin and curing agent.
Patent CA-2016312-C (CA)
Inventor: BUCHANAN JEFFREY JAMES
IPC: F16B21/07
Filed: 1990-05-08
Granted: 2001-10-16
Abstract: A push to install, quarter turn to release fastening system includes a fastener having a plurality of radially extending cone-shaped projections spaced along a shank and a pair of diametrically opposed ribs extending along the shank forming smooth surfaces outside the periphery of the cone-shaped projections.      The receptacle includes a split cylinder forming a pair of spring latches that are displaced to permit entry and captivation of the fastener. When the fastener is turned 90°, the ribs displace the spring latches to positions out of engagement with the cone-shaped projections to enable removal of the fastener from the receptacle.
Patent CA-2019885-C (CA)
Title: Material handling conveyor
Inventor: LEON MICHAEL A
IPC: B65G13/04
Filed: 1990-06-26
Granted: 1996-06-18
Abstract: A cluster for a material handling conveyor in which a plurality of rollers are mounted on a body member at an acute angle to a driven shaft, with bushing pressed into and recessed from each end of each roller to provide a consistant frictional force between the rollers and the member under various conditions of moisture.
Patent CA-2023772-C (CA)
Title: Absorbent article having a textured fastener
Inventor: BATTRELL CHARLES F
IPC: A61F5/44
Filed: 1990-08-22
Granted: 1995-02-07
Abstract: Disposable absorbent articles such as a diaper or a sanitary napkin having a fastening system comprising a pressure-sensitive adhesive  fastener having  a  textured  fastening  surface.   The pressure-sensitive  adhesive  fastener  comprises  a  backing  web having bulbous surface aberrations projecting from a surface of the web and a layer of pressure-sensitive adhesive coated over and bonded to at least a portion of the surface of the bulbous surface aberrations of the backing web.  When the fastening system of the present invention is affixed to a diaper, the overlapping portions of the diaper are maintained in contact with each other while the fastening  system  prevents  separation  of the overlapping  waist portions because it is able to resist the wearer-generated peel forces encountered during wear and the shear stress encountered when the diaper is worn.  Further, the fastening system allows the user to easily refasten  and check the diaper for soiling and removing  the  diaper  without  rendering  the  fastening  system unrefastenable or the diaper unusable.
Patent CA-2024327-C (CA)
Title: Magnesium die casting machine
Inventor: YAFFE STEPHEN
IPC: B22D17/04
Filed: 1990-08-30
Granted: 1995-09-26
Abstract: A machine for producing metal die castings is disclosed and comprises a crucible that incorporates an injection pump assembly which is mounted in such a way as to clear the upper access of the crucible to facilitate cover sealing and removing.  The crucible is located in a furnace and is reciprocable to move the injection barrel and nozzle to and from a mold.  The injection barrel is immersed in the crucible beneath the level of the molten metal to enhance heat transfer between the barrel and injected metal.  The separate plunger and shot assemblies are located in the pump body in a "V" configuration so that maintenance of these units can be carried out without exposing the top of the furnace to the atmosphere.  The plunger and shot assemblies include sealing means in connection with their actuating mechanisms to avoid molten metal splashing outside of the crucible when they are moving in an injection operation and to prevent the ingress of moisture, hydraulic fluid or the like into the crucible or injection chambers.  The apparatus is particularly suitable for use with high melting point alloys such as magnesium.
Patent CA-2031079-C (CA)
Title: Aminocarbonylcarbamates related to physostigmine, a process for their preparation and their use as medicaments
Inventor: GLAMKOWSKI EDWARD JOSEPH
IPC: A61K31/40
Filed: 1990-11-29
Granted: 2001-01-23
Abstract: Aminocarbonylcarbamates related to physostigmine, a process for their preparation and their use as medicaments The present invention relates to various derivatives related to physostigmine of the formula I   (see formula I) where Z is hydrogen, halogen or loweralkyl;      R1 is loweralkyl, cycloalkyl or aryl; and R2 is loweralkyl or cycloalkyl; the 3aS-cis isomer or the 3aR-isomer thereof or a mixture of the two isomers including the racemic mixture, or a pharmaceutically acceptable acid addition salt thereof, and a process for their preparation.      The compounds according to the invention are useful for enhancing cholinergic function, and as analgesic agents.
Patent CA-2032062-C (CA)
Title: An article for packaging fusible substances, a package obtained with said article, and a method for the manufacture of said package
Inventor: SUSINI CLAUDE
IPC: A45D40/16
Filed: 1990-12-12
Granted: 2000-07-04
Abstract: ABSTRACT OF THE DISCLOSURE         A single-use article for packaging fusible substances, in particular for sampling purposes, can be formed in one piece and has a tubular stem.  One end of the stem terminates in a perforated dome which supports a thin layer of substance to be sampled and carries a removable cover.
Patent CA-2034160-C (CA)
Title: Image heating apparatus using a microwave discharge plasma lamp
Inventor: ABE TOSHIO
IPC: F27B17/00
Filed: 1991-01-15
Granted: 1996-01-30
Abstract: An improved image heating apparatus using a plasma lamp is disclosed.  The apparatus comprises at least one rotary elliptical mirror having a reflection surface of a rotary elliptical body at the inside; a plasma lamp disposed at a first focal point of the rotary elliptical mirror; a member for supporting the plasma lamp; an electric wave shielding member provided inside the rotary elliptical mirror; a cavity resonator defined by the rotary elliptical mirror and the electric wave shielding member, and adapted to accommodate the plasma lamp; a high frequency oscillator adapted to supply electromagnetic wave to the cavity resonator via a wave guide; and a test sample disposed at a second focal point of the rotary elliptical mirror.
Patent CA-2035079-C (CA)
Title: Screw top
Inventor: DEBETENCOURT JEAN
IPC: B65D41/34
Filed: 1991-01-28
Granted: 1995-09-12
Abstract: The invention relates to a screw top comprising essentially two elements formed by a skirt and a sealing ring connected together in a number of places by means of small cross-elements which can be broken when unscrewing the top, characterised in that of said two elements, either the skirt (2) or the sealing ring (3) compri-ses prolongations (8-10) which extend sufficiently far towards and beyond the opposite element so as to prevent any deformation of the sealing ring (3) in the radial direction of the top.
Patent CA-2035331-C (CA)
Title: Heat exchange reforming process and reactor system
Inventor: NORSK JESPER
IPC: B01J8/04
Filed: 1991-01-31
Granted: 1997-07-01
Abstract: A process and reactor system for hydrocarbon conversion by primary and secondary reforming; the improvement comprises:  (i) reacting a process gas stream of hydrocarbon feed and steam in a first gas heated reactor in the presence of a steam reforming catalyst to a partially primary reformed process gas stream by indirect heat exchange with a moderately hot product gas stream from the shell side of a second gas heated reactor introduced into the shell side of the first gas heated reactor in counter-flow to the reacting process gas stream in the first gas heated reactor; (ii) dividing the partially primary reformed process gas stream from the first gas heated reactor into a first and second substream; (iii) reacting the first substream in the presence of a steam reforming catalyst in a convective heated tubular reactor furnace to a primary reformed gas stream; (iv) reacting the second substream in the second gas heated reactor in the presence of a steam reforming catalyst by indirect heat exchange with a hot product gas stream from an adiabatic secondary reforming reactor introduced into the shell side of the second gas heated reactor in parallel-flow to the reacting second substream in the second gas heated reactor to provide a primary reformed gas stream and to cool the hot product gas stream to the moderately hot product gas stream; (v) combining the primary reformed gas stream obtained in (iii) and (iv); and (vi) reacting the combined primary reformed gas stream in the adiabatic secondary reforming reactor with an oxidant gas in the presence of a secondary steam reforming catalyst to form the hot product gas stream.
Patent CA-2042139-C (CA)
Title: Electrical connector having cable strain relief
Inventor: HAITMANEK LOUIS
IPC: H01R13/58
Filed: 1991-05-08
Granted: 1994-06-21
Abstract: An electrical connector assembly for terminating flat multiconductor ribbon cable is disclosed. The connector assembly includes a base supporting plural insulation-piercing contacts in a pre-determined array. A cover, positioned over the base, is movable with respect thereto to effect cable termination to the contacts. Cable strain relief is provided by spring clips which urge an extent of cable against a side wall of the cover.
Patent CA-2046356-C (CA)
Title: Method and apparatus for improved initialization of computer system features
Inventor: ZYVOLOSKI KEVIN MARSHALL
IPC: G06F15/177
Filed: 1991-07-05
Granted: 1998-12-22
Abstract: A data processing system such as a personal computer includes a plurality of expansion connectors for receiving adapter cards.  A non-volatile memory  stores programmable option select (POS) data that is stored when the system is configured.   A  Power  On  Self  Test  (POST)  operation  is performed during which adapters are checked to determine if any have been added,  moved or removed,  since a previous system  configuration.  If  any have  been  so  altered,  the system may be placed in operation with all adapters enabled except for those which were altered.
Patent CA-2046559-C (CA)
Title: An adaptable insert for a cartridge holder
Inventor: FOND OLIVIER
IPC: A47J31/34
Filed: 1991-07-09
Granted: 2001-10-30
Abstract: The invention relates to an adaptable insert (1) for a cartridge holder for the preparation of beverages in a coffee machine, comprising a substantially frustoconical recess (2) with a peripheral rim (20) for receiving the cartridge to be extracted and, beneath this recess, a fixed central finger (3).
Patent CA-2048980-C (CA)
Title: 1-(pyridinylalkyl)-1h-indoles, indolines and related analogs
Inventor: EFFLAND RICHARD CHARLES
IPC: A61K31/41
Filed: 1991-08-12
Granted: 2003-05-13
Abstract: 1-(Pyridinylalkyl)1-H-indoles, indolines and related analogs This invention relates to compounds of the formula <see formula I>   wherein R1 is hydrogen, loweralkyl, arylloweralkyl, loweralkenyl or loweralkynyl;   P2 is hydrogen, lowralkyl, loweralkenyl, formyl or cyano;        X is hydrogen, halogen, vitro, amino, loweralkyl, loweralkoxy or hydroxy;   Y is hydrogen, loweralkyl, loweralkoxy, arylloweralkoxy, hydroxy, halogen, vitro or amino;   the pharmaceutically acceptable acid addition salts thereof, and, where applicable, the geometric and optical isomers and racemic mixtures thereof. The compounds of the invention are useful for the treatment of various memory dysfunctions characterized by a decreased cholinergic function, such as Alzheimer's disease.
Patent CA-2049862-C (CA)
Title: Polyester and epoxy vinyl monomer-grafted polysiloxance composition
Inventor: YAMAMOTO NAOKI
IPC: C08L67/02
Filed: 1991-08-26
Granted: 2003-04-15
Abstract: A polyester resin composition obtained by melt-mixing a mixture comprising resin components comprising as main resins (A) a thermoplastic polyester resin and.gamma. (B) a polyorganosiloxane graft copolymer obtained by graft-polymerizing one or more kinds of vinyl monomer containing at least an epoxy group-containing vinyl monomer onto a compound rubber in which a polyorgano-siloxane rubber and a polyalkyl (meth)acrylate rubber have been inseparably united with each other.      According to the present invention is provided a polyester resin composition in which the impact resistance of a thermoplastic polyester resin, a main constituent, has been improved over a wide temperature range including low temperatures below 0°C, and which provides molded products having good appearance.
Patent CA-2052754-C (CA)
Title: Expansion molding method and apparatus
Inventor: YAMAMOTO KEN
IPC: B29C33/30
Filed: 1991-10-03
Granted: 1994-11-01
Abstract: A method of forming molded articles having consistently or partially thin-walls by expanding expandable thermoplastic resin beads in a cavity formed between molds with the application of heat. The introduction of the resin beads is carried out after causing the width of a circumference section of the cavity to be greater than the diameter of the beads by moving one of or both of the molds in at least one direction orthogonal to a direction of closing the molds, the molds are then moved back to the normal positions, and the introduced resin beads are heated to form the molded article. Also, an expansion molding apparatus having a moving device such as a cylinder which moves the molds in at least one direction orthogonal to the closing direction during the introduction of the expandable thermoplastic resin beads, whereby consistently or partially thin-walled molded articles are manufactured.
Patent CA-2053317-C (CA)
Title: Active carbonates of polyalkylene oxides for modification of polypeptides
Inventor: ZALIPSKY SHMUEL
IPC: C07K1/113
Filed: 1990-04-19
Granted: 1996-03-12
Abstract: Poly(ethylene glycol)-N-succinimide carbonate and its preparation are disclosed. Polyethylene glycol (PEG) is converted into its N-succinimide carbonate derivative. This form of the polymer reacts readily with amino groups of proteins in aqueous buffers. The modified proteins have PEG-chains grafted onto the polypeptide backbone by means of stable, hydrolysis-resistant urethane (carbamate) linkages.
Patent CA-2055446-C (CA)
Title: Membranes de perfluorodioxole
Inventor: NEMSER STUART MARSHALL
IPC: C08F234/02
Filed: 1990-06-13
Granted: 2000-08-29
Abstract: La membrane à perméabilité sélective décrite, qui sert à la séparation ou à l'enrichissement de mélanges gazeux peut être formée à partir de polymères amorphes de perfluoro-2,2-diméthyl-1,3-dioxole, et en particulier à partir de copolymères ayant une quantité complémentaire d'au moins l'un des composés suivants: tétrafluoroéthylène, éther de perfluorométhyl-vinyle, fluorure de vinylidène et chlorotrifluoroéthylène. Le polymère est de préférence un dipolymère contenant une proportion molaire de 65 à 99 % de perfluoro-2,2-diméthyle-1,3-dioxole et ayant une température de transition vitreuse d'au moins 140°C. De telles membranes peuvent être utilisées pour la séparation ou l'enrichissement d'une grande variété de mélanges gazeux, tels que l'enrichissement à l'oxygène de l'air, et pour la séparation ou l'enrichissement de composés organiques gazeux mélangés à l'air, tels que la séparation ou l'enrichissement de la quantité de gaz de fluorocarbone contenue dans l'air. De telles membranes se caractérisent par un débit de passage du flux très élevé par rapport à d'autres membranes polymères organiques vitreuses.
Patent CA-2055718-C (CA)
Title: Background picture display apparatus and external storage unit used therefor
Inventor: OTAKE MASAHIRO
IPC: A63F13/95
Filed: 1991-11-15
Granted: 1997-09-02
Abstract: A background picture display apparatus includes a microprocessor and an external storage unit, and dot data, character designating data and mode data are programmed in advance in a ROM in the external storage unit.  Character designating data constituting background screens designated by the mode data and dot data of the respective characters used in the background screens are loaded in a RAM, that is, a screen RAM and a character RAM by a microprocessor.  The character designating data is read from the screen RAM, and the dot data of the character is read from the character RAM.  The dot data is converted into serial data by a parallel-serial conversion circuit, and a dot data combination circuit generates a color code for each background screen by combining the dot data and applies the same to a color generation circuit.
Patent CA-2064223-C (CA)
Inventor: ROSSIO CHARLES E
IPC: C02F9/00
Filed: 1991-06-07
Granted: 1996-08-20
Abstract: Stress cracking in poly(alkylene teraphthalate) articles of manufacture is inhibited by applying to the article a stress crack inhibitor which contains an amine having at least 6 carbon atoms. In a preferred embodiment, the stress crack inhibitor is applied to the article in the form of an aqueous fatty acid-based lubricant.