baber/WOPTO huggingface dataset:
Patent CA-2059103-C (CA)
Title: Process for the preparation of (6s)- and (6r)-tetrahydrofolates
Inventor: MUELLER HANS RUDOLF
IPC: C07B57/00
Filed: 1992-01-09
Granted: 1996-12-17
Abstract: The  invention  relates  to  a  process  for  the preparation of (6S)- and (6R)-tetrahydrofolic acid and their  addition  salts  with  a  sulfonic  acid or with sulfuric acid, which is characterized in that (6R,S)-tetrahydrofolic acid is reacted with a sulfonic acid or with sulfuric  acid,  resulting acid addition salt  is fractionally crystallized and, if desired, the (6S)- or (6R)-tetrahydrofolic acid is liberated from the resulting diastereomeric acid addition salts by treatment with a base and isolated.        The invention additionally relates to the novel acid addition salts of  (6S)- and (6R)-tetrahydrofolic acid with a sulfonic acid or with sulfuric acid, their use as medicaments or starting material for the prepara-tion of a medicament and their use for the preparation of optically active 5-methyl-, 5-formyl- and 5,10-methylene-tetrahydrofolic acids and their salts with strong bases and acids.
Patent CA-2060816-C (CA)
Title: Fluid check valve
Inventor: MUDDIMAN ROBERT
IPC: F16K15/03
Filed: 1992-02-10
Granted: 1997-10-28
Abstract: A fluid check valve has a valve assembly mounted in the bore of a valve body.  The valve assembly has two flap valves mounted on the hinge pin.   The hinge pin is mounted at each end in holding members which fit against the bore of the valve.  The hinge pin is mounted in elongate slots allowing movement of the flap valves along the axis of the valve to permit movement of the flap valves.  The holding members fit between the valve seat and two  diametrically  opposed  projections  in  the  valve  bore. Locating means retain the valve assembly in position with the holding members between the seat and the projections.
Patent CA-2064464-C (CA)
Inventor: SEALOCK L JOHN JR
IPC: C02F1/02
Filed: 1990-08-16
Granted: 2000-06-27
Abstract: Est présenté un procédé de récupération améliorée pour traiter les émulsions huile et eau du pétrole, provenant de la production ou du traitement du brut. Le procédé comprend le chauffage de l'émulsion à une température prédéterminée d'environ 300  C ou plus et la pressurisation de l'émulsion à une pression prédéterminée supérieure à la pression de la vapeur de l'eau à une température prédéterminée. L'émulsion est cassée en enfermant le liquide chauffé et pressurisé à l'intérieur d'une cuve se trouvant à une température et à une pression prédéterminées pendant une période de temps prédéterminée pour séparer de manière efficace l'émulsion en une première, une seconde et une troisième phases distinctes. Les trois phases sont ensuite retirées séparément de la cuve, de préférence sans aucune baisse sensible des conditions de température et de pression, et avec une température d'extraction supérieure à environ 300  C et une pression de vapeur d'eau supérieure à la température d'extraction.
Patent CA-2067701-C (CA)
Inventor: VOLTMER HELMUT
IPC: B65C9/26
Filed: 1992-04-30
Granted: 1999-03-30
Abstract: A  continuously  moving web pressure-sensitive  labeler applies pressure-sensitive labels to articles moving in a given direction past a label applying station.  The labels are initially carried by the moving web and the labeler includes a label applying mechanism such as a peel plate and a vacuum drum for stripping labels from the moving web and delivering the stripped labels in the given direction onto articles as they pass the label applying station in the given direction.  The labeler also has mechanism which generates a timing signal for timing the placing of labels in register on the label applying mechanism.  In a first embodiment, the timing signal generating mechanism includes an encoder driven by the drum and also includes a rotary vacuum valve.  In a second embodiment, the labeler includes a conveyor for carrying articles past the label applying station and a timing screw for orienting articles on the conveyor in evenly spaced single file manner, and the mechanism for generating a timing signal includes an encoder driven by the timing screw.
Patent CA-2069226-C (CA)
Title: One-piece corrugated box with interior supports
Inventor: PALLETT WILLIAM L
IPC: B65D5/50
Filed: 1992-05-22
Granted: 2003-11-04
Abstract: A one-piece, top opening, container which is preferably made of multiply corrugated cardboard. The container comprises a pair of opposed end wall panels and a pair of opposed side wall panels foldably joined together to form a tubular structure, and top and bottom closures for closing opposite ends of the container.      The bottom closure comprises at least one object support or platform which projects upwardly into the container and is adapted for supporting the object that is to be packaged therein. The object support includes foldably joined panel sections and it has an edge which is joined by a fold line to one of the wall panels of the container so that the panel sections of the support can lie substantially flat against the lower portion of the one end wall panel when the container is in a knock-down condition. The top closure comprises at least one restraint wall which extends across the interior of the container at a location spaced downwardly from the upper end thereof. The restraint wall engages the object packaged in the container to restrain movement of the object. The restraint wall is integral with one of the wall panels of the container and is foldably joined thereto by a fold line.
Patent CA-2070803-C (CA)
Title: Biodegradable implant material and process for producing same
Inventor: LEBUGLE ALBERT
IPC: A61K9/22
Filed: 1991-10-22
Granted: 1997-01-07
Abstract: A material is provided which can be implanted in living tissue, particularly bony tissue, and has a biodegradation rate matching the rate at which the tissue regenerates. The material may include an active substance providing an extended therapeutical effect. Said material includes (a) a calcium phosphate having an apatitic or triclinic structure and containing HPO4? and PO4? groupings; (b) a biodegradable oside or polyoside, particularly dextran; (c) as required, an active substance having amine groupings such as netilmicin and/or gentamicin in sulphate form. The implantable material can be produced without using heat by compacting the various components in powder form.
Patent CA-2075509-C (CA)
Title: Screen with a surface having projections or depressions
Inventor: NAGAOKA TADAYOSHI
IPC: B01D33/067
Filed: 1992-08-07
Granted: 1999-01-26
Abstract: A   screen  suitable  for  use  in  a  device   for separating  solid from liquid is made of a plurality  of screen  wires  each  of which is formed  on  the  facial surface   thereof  with a plurality  of  projections  or depressions.   The  screen may be additionally formed on the   side   surfaces  thereof  with  a   plurality   of projections.   The  screen can effectively trap solid by the  projections or depressions formed on  the  surfaces thereof.
Patent CA-2077926-C (CA)
Inventor: CHOLET HENRI
IPC: E21B43/40
Filed: 1992-09-10
Granted: 2005-07-05
Abstract: L'invention concerne un dispositif mélangeur continu comportant un arbre rotatif équipé de pales. Le mélange obtenu à la sortie du mélangeur résulte de l'admission dans le mélangeur d'un fluide de haute viscosité et d'au moins un fluide de plus bas se viscosité. Le dispositif mélangeur est adapté à fournir un mélange de plus basse viscosité par rapport au fluide le plus visqueux admis à l'entrée du mélangeur. L'invention fournit u n procédé de pompage d'un fluide visqueux et l'utilisation du dispositif mélangeur dans u ne installation de pompage d'un pétrole brut de haute viscosité.
Patent CA-2078175-C (CA)
Inventor: RADISCH HERBERT R
IPC: A61M25/00
Filed: 1992-09-14
Granted: 1999-05-25
Abstract: A catheter balloon is provided for medical dilation procedures which  is  formed  from  a polymeric  composite having an enhanced integrity.   The balloon comprises an expandable central body and two tapered termini positioned at opposing ends of the body which are formed from a structural  layer  of  continuous  polymeric  materials characterized as biaxially oriented in the body, but not in the tapered  termini.   A  layer  of  an  imide-containing polymer is provided external to the structural layer of the tapered termini to coat the termini and strengthen or otherwise enhance the integrity of the termini not having a  biaxial  orientation.    The  imide-containing  polymer coating may further be continuously extended to the body of the balloon.   The imide-containing polymer is applied to the structural layer of the balloon, in a liquid state and heat cured over time to produce a high-integrity coating.
Patent CA-2082206-C (CA)
Inventor: SWISZCZ PAUL G
IPC: E06B9/262
Filed: 1992-11-05
Granted: 2000-04-04
Abstract: A treated fabric for use in fabricating expandable and retractable window coverings, partitions and the like, particularly honeycomb panels. The treated fabric is a textile material having a least one portion thereof treated with a fabric treatment composition and at lest one portion thereof left untreated. A method of making a treated fabric, treated expandable and retractable window coverings, partitions and the like made from the treated fabric, and methods of making treated expandable and retractable window coverings, partitions and the like are also described.
Patent CA-2085171-C (CA)
Title: Guanidinoalkyl-1, 1-bisphosphonic acid derivatives, process for their preparation and their use
Inventor: LANG HANS-JOCHEN
IPC: A61K31/66
Filed: 1992-12-11
Granted: 2003-12-02
Abstract: Guanidinoalkyl-1,1-bisphosphonic acid derivatives, process for their preparation and their use The invention describes tautomeric compounds of the formula Ia, Ib or Ic (see Formula Ia, Ib) (see Formula Ic) and/or their physiologically tolerable salts, in which R1, R2, R3, R4, R5, R6 and R7 are a hydrogen atom, substituted (C1-C7)-alkyl, (C3-C10)-cycloalkyl, substituted phenyl or (C1-C4)-alkylphenyl, R2 is substituted phosphoric acid, R2 and R3, R2 and R5 or R4 and R5 form a monocyclic 5- to 7-membered saturated or unsaturated heterocyclic ring which is mono- or polysubstituted, R8, R9, R10 and R11 are a hydrogen atom or (C1-C5)-alkyl, X is a hydrogen atom, hydroxyl or halogen, 1 and n are an integer from 0 to 7, m is an integer from 0 to 2, and the sum of the numbers l, m and n is less than or equal to 10, a process for the preparation of the compounds of the formula Ia, Ib or Ic, pharmaceuticals and their use for the prophylaxis or treatment of osteoporosis.
Patent CA-2086193-C (CA)
Title: Method of refining of high purity steel
Inventor: TAGUCHI SEIJI
IPC: C21C7/10
Filed: 1992-12-23
Granted: 1998-02-24
Abstract: Disclosed is a method of refining of a high purity steel capable of effectively lowering impurities in molten steel into respective ultra-low ranges.  In secondary refining for molten steel after a molten iron prerefining process and a converting process, a reducing agent and a flux are added on the bath surface within a ladle containing the molten steel decarburized in a converter so that the composition of slag on the bath surface is adjusted in such a manner that the total concentration of FeO and MnO becomes 5wt% or less, and subsequently, impurities in the molten steel are effectively lowered into respective ultra-low ranges using a RH vacuum degassing unit.
Patent CA-2091938-C (CA)
Title: Method of manufacturing a hollow self-supporting concrete structure, means for performing said method and structures obtained by means of the method
Inventor: VAN EEDEN JOHANNES PETRUS
IPC: E01F8/00
Filed: 1991-07-19
Granted: 1997-01-21
Abstract: The invention relates to a method and means for manufacturing freely supported dome or tunnel-shaped structures by means of spraying a particular mortar with micro silica onto an inflated bladder (2) or sheet with or without a primarily applied layer (15) of foam and with or without reinforcing means (23, 24, 28) in particular for manufacturing a tunnel-shaped span (21) for a highway or railway portion.
Patent CA-2092125-C (CA)
Inventor: ALBERT STUART D
IPC: H04K3/00
Filed: 1993-03-22
Granted: 1999-07-20
Abstract: Disclosed is a real time interference signal rejection circuit which utilizes a conventional chirp-Z analyzer to generate a critical number and stop a counter circuit. The critical number is then read by a microprocessor which calculates new tap values from a set of predetermined tap values to reprogram a programmable filter.
Patent CA-2100419-C (CA)
Title: Graft copolymer, process for production thereof, and plasticizer comprising said copolymer as active component
Inventor: OHMAE TADAYUKI
IPC: C08F8/14
Filed: 1993-07-13
Granted: 1997-02-04
Abstract: A novel graft copolymer having a number-average molecular weight of about 1,500 to about 1,000,000, produced by graft-copolymerizing an alkylene oxide and a cyclic ester to a saponified ethylene-saturated carboxylic acid vinyl ester copolymer; a process for production thereof; and a plasticizer comprising said graft copolymer as the active component.
Patent CA-2106654-C (CA)
Inventor: DONAHUE RAYMOND J
IPC: F02F1/00
Filed: 1993-09-21
Granted: 2003-04-15
Abstract: An internal combustion engine having an engine block containing a plurality of cylinder bores and a piston slidably mounted in each bore. The block is composed of a hypereutectic aluminum-silicon alloy con-taining from 16% to 30% silicon and having precipitated primary silicon crystals, while the piston is composed of an aluminum-copper alloy containing from 10% to 15% by weight of copper.
Patent CA-2112996-C (CA)
Inventor: LENDARO JEFFERY BASIL
IPC: H04N9/04
Filed: 1994-01-06
Granted: 1998-12-15
Abstract: In a television receiver including a feature allowing a user to select a color temperature at which whites will be produced on a display screen, circuitry is provided for altering the gain of the red and blue kine driver stages and simultaneously automatically altering the gain of the R-Y and B-Y color difference signal amplifier to correct for errors which would otherwise be introduced by adversely altering the B-Y / R-Y ratio.
Patent CA-2114480-C (CA)
Title: Cycloolefin polymer composition
Inventor: ABE YOSHIHARU
IPC: C08F255/00
Filed: 1994-01-28
Granted: 2001-04-24
Abstract: Disclosed is a cycloolefin copolymer composition comprising (A) 8 to 40% by weight of a cycloolefin elastomer component of an .alpha.-olefin, a specific cycloolefin and optionally a non-conjugated diene which contains a polymerizable carbon-carbon double bond; and (B) 92 to 60% by weight of a cycloolefin copolymer component which is obtained by copolymerizing an .alpha.-olefin and a specific cycloolefin in the presence of the elastomer component (A), wherein a difference .DELTA.n D = ¦n D(A) - n D(B)¦ between the refractive index n D(Aa) of the component [Aa] and the refractive index n D(Ba) of the component [Ba] is not more than 0.015. This composition has excellent properties inherent in a cycloolefin random copolymer and is improved especially in impact resistance without trading off its transparency.
Patent CA-2115026-C (CA)
Inventor: MAH JUNG Y
IPC: A63B71/14
Filed: 1994-02-04
Granted: 1998-04-21
Abstract: There is disclosed a partial glove for use on the hand of a wearer inside a conventional baseball catching glove.  The glove  is  constructed  of  a  textile  material,  preferably  a stretchable textile material such as LYCRA TM spandex material, and is double layered on at least the palm (front) side, with a thin layer of resilient material interposed between the aforesaid two textile layers for impact protection of the wearer.  The textile portion of the glove preferably surrounds only the proximal portions of the first (index) and second fingers of the wearer, with the thumb, third and fourth fingers fully uncovered.  The thin layer of resilient material extends over at least the palm of the wearer and the front surface of the proximal portions of the first (index) and second fingers.  In this manner, the wearer obtains the impact protection afforded by the thin resilient layer, without significant restriction of mobility or reduction in tactility.
Patent CA-2118427-C (CA)
Inventor: PORTNEY ALVIN
IPC: A42B1/22
Filed: 1994-10-19
Granted: 1996-12-31
Abstract: A size adjustable cap utilizing a new and improved size adjustment strap is disclosed. The size adjustable cap has an opening in the back of the cap between the cap and the size adjustment strap which extends across the opening. The size adjustment strap has one end secured to the cap in the vicinity of a sweatband that is internally attached to the cap proximate its lower margin. The size adjustment strap has a free end and extends through a complementary shaped slot provided in the cap in the vicinity of the sweatband on an opposite side of the cap opening to allow the size adjustment strap to pass through the complementary shaped slot for positionment between the sweatband and the cap. Cooperating adjustment fasteners are associated with the size adjustment strap and the sweatband for engagement with one another when the size adjustment strap is positioned between the sweatband and the cap. Preferably, the cooperating adjustable fasteners are loop and hook fasteners. The loop fasteners are associated with the size adjustment strap and the hook fasteners are associated with the sweatband. The size adjustment strap includes a strip of fabric material for covering the loop fasteners and for facing outwardly from a user. The strip of the fabric material may correspond to the same fabric material as the cap, if desired.
Patent CA-2123992-C (CA)
Inventor: ISHIDA KENYA
IPC: A61K/
Filed: 1993-09-22
Granted: 1999-02-23
Abstract: Composition fragrante présentant des composants fragrants non activés avant, par exemple, application sur la peau d'un individu. La composition est alkaline ou (si anhydre) capable de produire un pH alcalin lorsqu'elle est au contact de l'eau, avant application, elle comporte (1) un véhicule d'application de la composition, et (2) au moins une fragrance potentielle laquelle est au moins un composé présentant peu ou pas d'odeur dans la composition alcaline, mais laquelle, par exemple, est hydrolysée dans un environnement de pH inférieur pour produire des composés ayant un arôme relativement fort. Lors de l'application de la composition alcaline sur la surface de la peau, la forte capacité de tamponnement de la peau (dont la surface présente un pH normal compris entre 5,5 et 7,0) neutralise l'alcalinité de la composition (elle abaisse le pH) afin de rétablir le pH normal de la surface de la peau, la fragrance potentielle étant ensuite hydrolysée au pH inférieur afin de libérer le composé ayant un arôme relativement fort.
Patent CA-2128975-C (CA)
Title: Method and apparatus for storing data on a digital audio tape
Inventor: HENITS JOHN
IPC: G11B27/32
Filed: 1994-07-27
Granted: 1997-07-08
Abstract: An apparatus and method have been conceived for using a digital audio tape (DAT) in an audio logger for the purposes of storing and retrieving audio data. This is accomplished in a manner such that the data is received and recorded in a time related manner. Provision is made for accommodating the transfer drive rate of the DAT through use of a buffer between the signal processor of the logger and the DAT. In addition, the method of storing the data results in greater use of the available space on the DAT as the DAT tape only writes for those periods when audio is present on a channel.
Patent CA-2130362-C (CA)
Title: Powder spray apparatus for the manufacture of coated fasteners
Inventor: DUFFY RICHARD J
IPC: B05B7/26
Filed: 1994-08-18
Granted: 1998-11-03
Abstract: An improved apparatus for generating a powder stream to be applied to a work piece includes a powder reservoir,  a mixing chamber, a powder metering valve, a transfer conduit, and a nozzle.          The metering valve allows control of the powder flow from the reservoir into the mixing chamber where it is dispersed with and entrained in an air flow entering the chamber through an aspirating inlet.  The air entrained powder is then conveyed from the mixing chamber via the transfer conduit to the nozzle.   The nozzle includes  a  controllable  gas  flow  input  and  a powder  stream generating passageway configured and associated with the transfer conduit to generate a reduced pressure in the conduit and mixing chamber which draws the air borne powder from the chamber into the nozzle.  One or more of the individual components are adjustable to control the size, configuration, thickness or other parameters of the coating on the work piece as a result of the applied powder stream.
Patent CA-2131035-C (CA)
Inventor: RUETER JOHN C
IPC: A61N1/365
Filed: 1994-08-29
Granted: 1999-09-07
Abstract: A multiple sensor cardiac pacemaker blends the outputs from a fast-reacting Activity sensor and a slower-reacting Minute ventilation sensor to achieve an optimally desirable pacing rate. The pacemaker conserves battery energy by forcing the Minute Ventilation sensor output to be at its minimum value by disabling the Minute Ventilation algorithm for a predetermined time period when the Activity sensor is at its minimum observed value. Power is conserved because the Minute Ventilation sensor and associated algorithms which normally consume power to operate the circuitry, and to measure impedance are disabled temporarily only during selected periods where the Activity sensor is at its minimum observed value, thereby maintaining optimal blending of the pacemaker sensor outputs in achieving the desired pacing rates.
Patent CA-2134817-C (CA)
Title: Ignition transformer
Inventor: NOBLE GARDINER A
IPC: F02P17/12
Filed: 1994-11-01
Granted: 2003-04-22
Abstract: An ignition and engine control system for an internal combustion engine. The system includes a flyback ignition transformer which can rapidly re-fired a spark plug during a combustion cycle to perform various ignition diagnostic procedures using the spark plug as a feedback element of the control system. The transformer is adapted for mounting directly to a spark plug and includes a core about which a primary and secondary are toroidally wound. A controller provides signals to a circuit which causes maximum charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit which can detect the occurrence of an electrical discharge, and/or its duration, across the spark plug as a result of one of the diagnostic charges by monitoring the transformer for a reflected voltage in its primary. The detection circuit outputs a signal to the controller which allows the controller to diagnose conditions within the combustion cylinder.
Patent CA-2144728-C (CA)
Title: Method of treating premenstrual syndrome symptomatology with vitamin d or vitamin d and calcium
Inventor: THYS-JACOBS SUSAN
IPC: A61K31/59
Filed: 1993-09-14
Granted: 2005-04-26
Abstract: The present invention is directed to a method for treating symptoms associated with premenstrual syndrome. The method comprises administering to an individual in need of treatment an amount of vitamin D or a combination of elemental calcium and vitamin D effective to reduce the symptoms associated with premenstrual syndrome.
Patent CA-2149006-C (CA)
Title: Synchronous voice/data messaging system
Inventor: BANNISTER CECIL HENRY
IPC: H04M11/00
Filed: 1995-05-09
Granted: 2003-07-15
Abstract: A synchronous voice/data messaging system allows parties to communicate both voice and graphic information or  other  data  interactively  or  to  retrieve  such information synchronously in the exact sequence in which it was created.  Voice information and data information are transmitted on a voice channel and a data channel. Time stamps are generated to synchronize the voice and data information.   The time stamps can be generated either in a user device or in a multimedia messaging system.  In either case, the voice and graphic or other data is played back to the called party in the exact sequence and at a rate corresponding to the rate at which it was received.   Such a system can also be used to provide other services such as synchronous voice/data messaging while on hold or as part of a multimedia greeting.