baber/WOPTO huggingface dataset:
Patent CA-2024022-A1 (CA)
Title: Filter for removing contaminants from refrigerant
Inventor: BAKER NORMAN L
IPC: F25B43/00
Filed: 1990-08-27
Abstract: ABSTRACT OF THE DISCLOSURE     A filter for removing contaminants from refrigerant, consisting of an elongate closed container having a first end, a second end and an interior.  An inlet is positioned adjacent to the first end.  An outlet is positioned adjacent to the  second end.   Desiccant  substantially  fills  the interior of the container.  A plurality of liquid impervious and  vapour  flow  retarding  membranes  are  positioned transversely within the interior of the container forming vapour barriers.  The desiccant is divided into a plurality of layers separated by the membranes.  Refrigerant enters the inlet and passes through the plurality of layers prior to exiting the container via the outlet.
Patent CA-2024438-A1 (CA)
Title: External preparation containing amusulosin
Inventor: KONNO YUTAKA
IPC: A61K9/00
Filed: 1990-08-31
Abstract: ABSTRACT OF THE DISCLOSURE An external preparation comprising 5-[2-[[2-(o-ethoxyphenoxy)-ethyl]amino]-2-propyl]-2-methoxybenzene sulfonamide or a salt thereof.
Patent CA-2026289-A1 (CA)
Inventor: KAMEI HIDENORI
IPC: H01S5/22
Filed: 1990-09-26
Abstract: Selon la présente invention, sur un plan cristallographique (100) d'un substrat semiconducteur à conductivité d'un premier type, on fait croître successivement une première couche de métallisation à conductivité du premier type, une couche active, une seconde couche de métallisation à conductivité d'un second type et une couche d'encapsulation beaucoup plus réceptive à la gravure latérale que la seconde couche de métallisation. Puis on forme sur le substrat un masque en forme de ruban orienté dans la direction  <011> par rapport à chacune des couches du substrat multi-couches. Cette gravure est réalisée selon une orientation du cristal pour former un mésa en triangle inversé. Toutefois, comme la couche d'encapsulation est en matériau sensible à la gravure latérale, on forme un mésa arrondi. Par la suite, lorsqu'une couche d'enfouissement est déposée par épitaxie en phase gazeuse sur la partie gravée, on peut donner à cette couche une surface plane selon les orientations du cristal.
Patent CA-2026335-A1 (CA)
Title: Furfuryl alcohol mixtures for use as cleaning agents
Inventor: BIXENMAN MICHAEL L
IPC: C23G5/032
Filed: 1990-09-27
Abstract: The present invention offers an alternative to the chlorofluorocarbons which have been used in the cleaning industry. In particular, the present invention uses a solution having tetrahydrofurfuryl alcohol (THFA) and an activator. As activators, compounds of the formula (See formula I) wherein R1, R2 and R3 are independently hydrogen, C1-C7 alkyl, C5-C6 cycloalkyl, furanyl which can be substituted by C1-C7 alkyl, tetrahydrofuranyl which can be substituted by C1-C7 alkyl, pyrrolyl, pyrrolidinyl, benzyl which can be substituted by C1-C7 alkyl, phenyl which can be substituted by C1-C7 alkyl, C1-C7 alkenyl, C1-C7 alkynl, furfuryl which can be substituted by C1-C7 alkyl, or tetrahydrofurfuryl which can be substituted by C1-C7 alkyl, wherein R1, R2 and R3 can be substituted by at least one hydroxy group, provided that R1, R2 and R3 are not simultaneously hydrogen, or   wherein R4 is hydrogen, C1-C6 alkyl, C5-C6 cycloalkyl, furanyl which can be substituted by C1-C6 alkyl, tetrahydrofuranyl which can be substituted by C1-C6 alkyl, pyrrolyl, pyrrolidinyl, or benzyl which can be substituted by C1-C6 alkyl, R5 is C1-C6 alkyl, C5-C6 cycloalkyl, furanyl which can be substituted by C1-C6 alkyl, tetrahydrofuranyl which can be substituted by C1-C6 alkyl, furfuryl which can be substituted by C1-C6 alkyl, tetrahydrofurfuryl which can be substituted by C1-C6 alkyl, pyrrolyl, pyrrolidinyl, benzyl which can be substituted by C1-C6 alkyl, or the group -(C)a -O-(C)b -O-(C)b -OH     wherein a is from 1 to 3 and b is from 1 to 4, can be used.      In addition to the activators (I) or (II), the present invention can also include as activators cyclic or non-cyclic diamines, pyrrolidone, which can be substituted by C1-C6 alkyl or C1-C6 alkenyl, or butyrolactone.
Patent CA-2027910-A1 (CA)
Title: Support structure for devices in a computer apparatus
Inventor: COOKE KEVIN K
IPC: G06F1/16
Filed: 1990-10-18
Abstract: SUPPORT STRUCTURE FOR DEVICES   IN A COMPUTER APPARATUS       ABSTRACT OF THE DISCLOSURE          A personal computer enclosure is provided which is reinforced by in inner disk drive support structure inside the box.  The enclosure is a substantially parallelepiped outer box having an opening for providing access to the interior of said box.   The box includes a plurality of mounting locations on the interior of the box.  The inner support  structure  includes  a  plurality  of  bays  for receiving  respective  disk  drives  therein.   These  bays communicate  with  the  opening  in  the  enclosure.    The structure is attached to said outer box at said mounting locations to provide structural integrity thereto.
Patent CA-2028476-A1 (CA)
Title: Controller for starting and stopping electric motors
Inventor: MERRISON JOHN C
IPC: H02P27/02
Filed: 1990-10-24
Abstract: A three-phase motor is operated by a controller having sets of thyristors which when triggered switch electricity from each phase of a supply to the motor. The controller measures the interval .PHI. between when the voltage and the current for one phase to the motor make zero crossings and measures the interval .gamma. that the thyristor are non-conductive during half-cycle of the voltage for the one phase. A control angle .THETA. is calculated according to the equation .THETA. = .PHI. + K.gamma., where K is a positive number. The control angle .THETA. is compared to a reference value to derive an error value. The times at which the thyristors are triggered is controlled in response to the error value. To start the motor, the reference value is gradually decreased to trigger the thyristors progressively earlier during each half cycle of the supply voltage. To stop the motor, the reference value is gradually increased to trigger the thyristors progressively later during each half cycle of the supply voltage.
Patent CA-2028486-A1 (CA)
Title: Process for manufacture of 1,1-dichloretetrafluoroethane
Inventor: GUMPRECHT WILLIAM H
IPC: C07C17/20
Filed: 1990-10-24
Abstract: PROCESS FOR MANUFACTURE OF     ABSTRACT OF THE DISCLOSURE A process for the manufacture of 1,1-di-chlorotetrafluoroethane, CF3CCl2F (CFC-114a), sub-stantially free of 1,2-dichlorotetrafluoroethane, CClF2CClF2 (CFC-114), and over-fluorinated products [e.g., CF3CClF2 and CF3CF3) comprising the steps of contacting a trichlorotrifluoroethane liquid phase [e.g., a mixture of 1,1,1-trichlorotrifluoroethane, CCl3CF3 (CFC-113a) and 1,1,2-trichlorotrifluoroethane, CClF2CCl2F (CFC-113)] with an antimony pentahalide catalyst (e.g., SbCl5-xFx, where x is 0 to 3) and separating a gaseous 1,1-dichlorotetrafluoroethane product.  Nearly quantitative conversion of CF3CCl3 to CF3CCl2F, with no perceptible production of CClF2CClF2, can be achieved in a continuous process.  The CF3CCl2F is useful as an intermediate in the manufacture of hydrochlorofluorocarbons and hydrofluorocarbons.
Patent CA-2030513-A1 (CA)
Title: Procedure and means for attaching film used in covered cultivation
Inventor: SUOMINEN HANNU
IPC: A01G13/00
Filed: 1990-04-12
Abstract: Abstract of Disclosure The present invention concerns a procedure for attaching a film used in covered cultivation, in which the film is spread on a surface being cultivated, for instance field. When spreading the film (10), the film (10) is sewn by stitchings (11) to the surface (12) being cultivated. The object of the invention is also a means for attaching the film (10) used in covered cultivation to a surface (12) being cultivated, for instance field. The means comprises operation and guide means, and a roll for spreading the film (10) on the surface being cultivated, a member for conveying the sewing thread to the surface being cultivated, and members for conveying the sewing thread to the point to be stitched.            (Fig. 1)
Patent CA-2030775-A1 (CA)
Title: Triazolyl thioamide derivatives
Inventor: BARKOCZY JOZSEF
IPC: C07D401/12
Filed: 1990-11-23
Abstract: TRIAZOLYL THIOAMIDE DERIVATES                         ABSTRACT     The  invention relates to novel triazolyl thioamides  of the general formula (I),                 (I) wherein Q  represents  hydrogen or a heterocyclic  group  optionally bearing one or more C1-4 alkyl substituent(s), or a group of the formula SR1, wherein R1 stands for straight or branched chained alkyl group comprising 1 to 6 carbon atom(s), or a group of the formula NR2R3, wherein R2 and R3 each represent hydrogen, straight or branched chained C1-4 alkyl or C2-6, alkenyl group, Y  denotes C1-4 alkyl optionally bearing one or more hydroxyl or C1-4 alkoxy substituent(s), phenyl-(C1-4 alkyl) optionally  bearing  on  the phenyl ring one  or more  C1-4 alkoxy group(s), or phenoxy-(C1-4 alkyl) optionally substituted on the phenyl ring by a C1-4 alkyl bearing a heterocyclic group containing a nitrogen atom, and pharmaceutically  acceptable acid addition salts there-of.    Furthermore  the  invention  relates  to  a  process for preparing  these compounds.    The compounds according to  the invention possess tranquillant, antidepressant, spasmolytic, antiinflammatory, analgesic and antiperistaltic effects.
Patent CA-2030838-A1 (CA)
Inventor: KOHL WILLIBALD F
IPC: A61K31/205
Filed: 1990-11-26
Abstract: Tablets, capsules and other preparation forms for oral administration are produced which contain L-carnitine-L-tartrate. In comparison to preparations made with free L-carnitine, the invention preparations exhibit less hygroscopicity, longer stability and better capacity for being stored.
Patent CA-2033119-A1 (CA)
Title: Self-extinguishing polyurethanes
Inventor: EBERSPACH WERNER
IPC: C08G18/54
Filed: 1990-12-24
Abstract: Self-extinguishing polyurethanes Abstract of the disclosure:          Self-extinguishing polyurethanes are obtained by stepwise polyaddition of diisocyanates or polyisocyanates with polyols  with  the  addition  of  a  flameproofing  agent comprising a phosphorus component and a nitrogen com-ponent as synergists. While the phosphorus component used is an ammonium polyphosphate which is sparingly soluble in water and, if desired, has been microencapsulated with a  melamine/formaldehyde  resin,  the  organic  nitrogen component is selected from the group comprising a) bis(triazinyl)piperazines b) hydroxyalkyl isocyanurates c) condensation products of amino-1,3,5-triazines with aldehydes.
Patent CA-2035762-A1 (CA)
Title: Garbage bag opening device
Inventor: BOIVIN ROBERT M
IPC: B02C18/28
Filed: 1991-02-06
Abstract: ABSTRACT OF THE DISCLOSURE      An apparatus for opening garbage bags in a municipal waste processing stream including a drum rotatable above the stream of municipal waste with a plurality of discrete tearing elements extending outwardly from the drum into the stream of waste, to tear through bags while yielding to more resistant articles in the stream of waste.  The drum is suspended from arms pivotally mounted above the drum, so that the drum will yield to large items in the waste stream.
Patent CA-2037562-A1 (CA)
Title: Detection assays having chromogenic and nonchromogenic, hypochromogenic, bathochromogenic or hypsochromogenic substrates
Inventor: HATCH ROBERT P
IPC: C12Q1/44
Filed: 1991-03-05
Abstract: ABSTRACT OF THE INVENTION      The invention relates to enzyme detection assay compositions and methods which have chromogenic and nonchromogenic, hypochromogenic, bathochromogenic or hypsochromogenic substrates.  By using both chromo-genic and nonchromogenic, hypochromogenic, batho-chromogenic or hypsochromogenic substrates assay sensitivity can be controlled and the need for sample predilution eliminated.  In one embodiment of the invention an assay for the estimation of serum cholinesterase activity is provided.
Patent CA-2039200-A1 (CA)
Inventor: POLLACK SLAVA A
IPC: H01S3/108
Filed: 1991-03-27
Abstract: FULL COLOR UPCONVERSION DISPLAY                 ABSTRACT OF THE DISCLOSURE     Full color alphanumeric or image displays are pro-duced by upconverting near infrared radiation into visible light.  The display system includes an upconverting screen including a host material doped with rare earth ions.  The screen may be divided into pixels which may be selectively excited by infrared radiation to emit visible light of a desired color.  An intensity-modulated infrared laser beam is scanned across the surface of the screen to selectively excite the screen pixels and produce the desired image.
Patent CA-2040862-A1 (CA)
Title: Spray granules or microgranules of pure riboflavin which contain no binder, are non-dusting and free flowing, and the preparation thereof
Inventor: GRIMMER JOHANNES
IPC: A61K9/16
Filed: 1991-04-19
Abstract: O.Z. 0050/41589 Abstract of the disclosure:  A  process  for  preparing spray granules or microgranules, which contain no binder, are non-dusting and free-flowing,  from finely divided pure  riboflavin,  comprises subjecting  an  aqueous or water-containing suspension of the pure finely divided riboflavin to a)   a fluidized bed spray drying b)   a single-nozzle spray drying or c)   a disk-type spray drying in particular a  fluidized bed  spray drying,  without adding binders to the suspension, and the spray granules or  microgranules  of  riboflavin  obtainable  by  this process.
Patent CA-2043642-A1 (CA)
Title: Pharmacologically active cns compounds
Inventor: LEACH MICHAEL J
IPC: C07D253/06
Filed: 1991-05-31
Abstract: ABSTRACT          PHARMACOLOGICALLY ACTIVE CNS COMPOUNDS       The invention provides compounds of formula (I)   wherein at least one of R1, R2 and R3 is chloro and the others are selected from hydrogen and chloro; and R4 and R5 are the same or different and are each alkyl or hydrogen.            The  compounds  may  be  used  for  the  treatment  or prophylaxis of a neurodegenerative of other neurological disorder of the CNS,  the aetiology of which includes excessive release of the neurotransmitter glutamate.
Patent CA-2049097-A1 (CA)
Title: Anionic-rich, high ph liquid detergent compositions containing subtilisin mutants
Inventor: WEBER THOMAS
IPC: C11D3/386
Filed: 1991-08-13
Abstract: C 6132 (R) ABSTRACT OF THE DISCLOSURE The subject invention relates to mutant subtilisin proteases having substitution in at least 1 amino acid residue and to their use in anionic-rich, high-pH detergent compositions in view of the enhanced protease stability they provide.
Patent CA-2050092-A1 (CA)
Title: Amino acid derivatives
Inventor: RADDATZ PETER
IPC: C07K5/02
Filed: 1991-08-28
Abstract: A b s t r a c t Novel amino acid derivatives of the formula I     in which R1 to R5, W, X and Y have the meanings indicated in Patent Claim 1, and their salts inhibit the activity of human plasma renin.
Patent CA-2053352-A1 (CA)
Inventor: JUNINO ALEX
IPC: A61K8/00
Filed: 1991-10-11
Abstract: The invention relates to the use of 1,4-bis[(mono- or polyhydroxyalkyl)amino]-9,10-anthraquinones: 
<IMAGE>
 where R represents a C2 to C6 monohydroxyalkyl radical or a C3 to C6 polyhydroxyalkyl radical, for the dyeing of human keratinous fibres, to cosmetic dyeing compositions containing such anthraquinones, the dyeing compositions for keratinous fibres containing such anthraquinones in combination with nitro dyes of the benzene type, azo dyes, for direct dyeing, and/or with oxidation dyes for oxidation dyeing, and also to processes for dyeing keratinous fibres by direct dyeing or by oxidation dyeing.
Patent CA-2054510-A1 (CA)
Inventor: TRINH DINH CHAN
IPC: C22B34/36
Filed: 1991-10-30
Abstract: On a décrit un procédé de traitement antipollution et de la récupération des métaux d'un catalyseur de raffinage d'une charge de pétrole à l'état usé renfermant au moins un métal contaminant choisi dans le groupe constitué par le vanadium, le nickel, et le fer. Le procédé est caractérisé notamment en ce que a/ le catalyseur déchargé de l'unité industrielle est soumis à un strippage b/ le catalyseur est calciné dans les conditions critiques et c/ les métaux du catalyseur subissent une lixiviation en présence d'une solution aqueuse de soude caustique ou de carbonate de sodium. Le procédé s'applique à un traitement antipollution et de la récupération des métaux des catalyseurs usés notamment des catalyseurs d'hydrotraitement ou d'hydroconversion d'une charge pétrolière.
Patent CA-2057280-A1 (CA)
Title: Aerator
Inventor: BURGESS HARRY L
IPC: B01F25/64
Filed: 1991-12-09
Abstract: An aerator for gasifying a body of liquid comprising a centrifugal pump having a generally vertical axis. The pump comprises a casing having a generally axial liquid inlet opening generally upwardly, a liquid outlet, and an internal fluid flow space communicating the liquid inlet and the liquid outlet. A centrifugal impeller is rotatably mounted in the space and operative to move fluid into the liquid inlet, through the space, and out the liquid outlet. A motor is operatively associated with the impeller to rotate it. The pump defines a cavitation zone in the fluid flow space adjacent a central portion of the impeller. The pump is adapted to maintain a disposition of its casing with the liquid inlet so opening generally upwardly below the surface of the liquid and capable of taking in both liquid from the body and also taking at least enough gas from an area outside the liquid to the cavitation zone so that the pump would surge if slightly more gas were taken.
Patent CA-2057315-A1 (CA)
Title: Ink container cartridge and manufacturing method therefor
Inventor: UJITA TOSHIHIKO
IPC: B41J2/175
Filed: 1991-12-09
Abstract: ABSTRACT OF THE DISCLOSURE         An ink container cartridge includes an ink containing portion; a plug for being pierced by a hollow needle; a device for preventing reverse flow of the ink to the containing portion, the preventing device comprising a valve, a first liquid passage in which the valve is movable and a second passage disposed closer to the ink containing portion than the first passage, and the valve is capable of closing the second passage.     yu038/1489
Patent CA-2057821-A1 (CA)
Title: Anti-herpes castanospermine esters
Inventor: SUNKARA SAI P
IPC: A61P31/12
Filed: 1991-12-17
Abstract: ABSTRACT     This invention relat,es t,o cert,ain castanospermine ester derivatives of the formula:       wherein R, Rl and R2 are variously defined.  These deriv-atives are to be effective in treating infections caused by Herpes Simplex Virus (HSV) Types 1 and 2.
Patent CA-2060840-A1 (CA)
Title: Printed-circuit board
Inventor: TAKASHIMA RIHEI
IPC: H05K3/46
Filed: 1992-02-07
Abstract: Abstract of the Disclosure:     Disclosed is an improved printed-circuit board comprising upper and lower dielectric boards (10) and (11) each having a signal conductor pattern (12) or (13) on one side, and a porous dielectric board (15) sandwiched between the upper and lower dielectric boards (10) and (11). Preferably porous boards (15) have through holes regularly arranged therein.  The apparent dielectric constant of the porous dielectric board (15) is  such a reduced value that the upper limit of signal frequency is expanded without recourse of reducing the signal  conductor width. Advantageously printed-circuit boards according to the present invention can be used as data bus in transferring data at a high-speed in a computer system.
Patent CA-2062009-A1 (CA)
Title: Tracking antenna system
Inventor: NISHIKAWA KUNITOSHI
IPC: H01Q3/26
Filed: 1992-02-27
Abstract: ABSTRACT OF THE DISCLOSURE         An  antenna is divided into a plurality  of  sub-arrays which  are arranged parallel to each other on a turntable.   At least one of the sub-arrays is laterally divided into sub-array sections.  Reception signals from these sub-array sections  are compared with each other to detect a phase difference  therebe-tween.   This phase difference is utilized to control the  beam direction of the antenna such that the antenna can be  properly oriented to the satellite at all times.
Patent CA-2062879-A1 (CA)
Title: Yieldable load support
Inventor: PIENAAR FRANS R P
IPC: E21D15/55
Filed: 1992-03-12
Abstract: The yieldable load support comprises a compressible support member in the form of an elongate timber pole. The load support or pole is asymmetrically modified at or near one end thereof in a manner to positively induce sideways brushing of the pole at the modified end, in a preferential direction transverse to the length of the pole, when the support member is placed under longitudinal compressive load of sufficient magnitude.
Patent CA-2068390-A1 (CA)
Inventor: STEWART GREGORY R
IPC: B32B7/027
Filed: 1992-05-11
Abstract: A plastics material with at least first and second layers of plastic polymeric material, the material of the first layer having a melting point lower than the melting point of the material of the second layer.  The layers are orientated and heated to at least the melting point of the first layer so that the first layer breaks up to form an irregular surface pattern bonded to the second layer.  A method of producing the plastics material is also provided, the orientation and heating being done sequentially or simultaneously.  The material has cloth-like properties with a "soft" feel and with minimal noise.
Patent CA-2069298-A1 (CA)
Title: Document dispensing apparatus
Inventor: GOODMAN SIDNEY
IPC: G07F17/42
Filed: 1990-10-30
Abstract: A self service system (11A) for vending small customized documents (251-260), includes an input device (17) for receiving and storing customized input information from a customer for producing and vending a customized document (230) according to the requirements of the customer. In response to the receipt of the customized input information, a device (11A) generates and supplies cost information to the customer. Responsive to signals indicative of the correct payment being received from the customer, a device (22) produces the customized documents.
Patent CA-2070805-A1 (CA)
Title: Fur-like piled fabric and method for production thereof
Inventor: YAMAGATA SEIICHI
IPC: D03D27/00
Filed: 1991-10-04
Abstract: - 32 -ABSTRACT OF THE DISCLOSURE This invention is directed to a fur-like pile fabric of two-layer construction formed of guard hair fibers and under-fur fibers and used as artificial fur and a method for the production thereof. This invention produces a pile fabric 1 possessing guard hair fibers 2 having sharpened leading terminals and under-fur fibers having a satisfactorily uniform length by a method that comprises preparing a pile knitted or woven fabric with a pile yarn obtained by mixing limited-length polyester type fibers for guard hair fibers of sharpened terminals with limited-length polyester type fibers more susceptible to the action of an alkali treating agent and used for under-fur fibers, imparting an alkali treating agent 6 of a specific viscosity to the hair-raised surface of the pile knitted or woven fabric, and thereafter heat-treating the alkali-treated fabric thereby shortening the under-fur fibers and sharpening the leading terminals of the under-fur fibers.