baber/WOPTO huggingface dataset:
Patent CA-2033584-A1 (CA)
Title: Bis-hydroxy diamides and methods therefor
Inventor: SPERANZA GEORGE P
IPC: C08G69/44
Filed: 1991-01-03
Abstract: NOVEL BIS-HYDROXY DIAMIDES AND METHODS THEREFOR                   (D#80,770-F) Abstract of the Disclosure Novel bis-hydroxy diamides having the formula:                 where R is an alkyl or aryl moiety having from 3 to 10 carbon atoms and where x ranges from 1 to 6 may be produced by reacting dicarboxylic acids with polyethylene glycol monoamines. Suitable dicarboxylic acids include adipic acid, terephthalic acid, isophthalic acid, t-butyl isophthalic acid, 1,1,3 trimethyl-5-carboxy-3-(p-carboxyphenyl)indane, and mixtures thereof. Suitable monoamines include diethylene glycol monoamine, also known as Diglycolamine? amine (DGA); triethylene glycol monoamine (TEGMA) and tetraethylene glycol monoamine (T4EGMA), among others. The resulting bis-hydroxy diamides are useful to make hydroxy-terminated polyamides and as fuel additive corrosion inhibitors. The diamides have unusual solubility properties.
Patent CA-2034124-A1 (CA)
Title: Manufacture of mgo-based .beta."-alumina sintered bodies
Inventor: NEMOTO HIROSHI
IPC: C04B35/113
Filed: 1991-01-14
Abstract: A process for manufacturing MgO-based .beta."-alumina sintered bodies from a starting powder comprising an MgO-based .beta."-alumina as a main ingredient, through shaping and firing, in which process shaped bodies before firing contain 0.3~5 wt.%, preferably 1~3 wt.%, of Na aluminate. The resulting sintered bodies are high in density, ionic conductivity and strength and useful for solid electrolytes, for example, of sodium sulfur cells.
Patent CA-2035455-A1 (CA)
Inventor: CHIBA KOUJI
IPC: H03C1/00
Filed: 1990-06-28
Abstract: This invention relates to a linear transmitter  which controls  the bias voltage of either the drain electrode  or collector  electrode  of an amPlifier  for  radio  frequency based on the envelope of the modulated signal, and is  char-acterized in that it controls the bias voltage of the  radio frequency  amplifier  in digital  arithmetic  processing  by generating  the envelope using in-phase  envelope  component and  quadrature  envelope component obtained from  the  base band signals.
Patent CA-2036323-A1 (CA)
Title: Hindered phenolic n - (amido) imides
Inventor: WICHER JEROME
IPC: C07D209/48
Filed: 1991-02-14
Abstract: Abstract of the Disclosure Phenolic N-(amido)imides are provided which are useful as antioxidant stabilizers for organic materials, including a large variety of synthetic polymers, typically subject to thermooxidative degradation. The antioxidant effectiveness of the phenolic N-(amido)imide stabilizers is enhanced by the deactivating potential of the amido-imide moiety towards metals or metal ions that frequently contaminate polymer compositions and serve to catalyze thermal degradation.
Patent CA-2038319-A1 (CA)
Title: Self-covering pet bed
Inventor: FIFE LOIS A
IPC: A01K1/035
Filed: 1991-03-14
Abstract: A dual purpose sleeping apparatus which allows a pet to sleep on top (20) of the pet bed, or to climb inside and be directly covered. It consists of a top (20), ribbed sides (30) which allow telescoping action as the pet(s) enters and exits, and a cushion base (40). When the bed is not in use it gives the appearance of a typical pet bed mat due to the action of the ribs (30) and the top (20) framing material (70). As the rib (30) collapses, the rib insert(s) (32) position(s) the top (20) over the base (40). The framing material (70) around the perimeter of the top (20) serves to keep the edges spread over the base (40).
Patent CA-2039855-A1 (CA)
Title: Difluoroglutamic acid conjugates with folates and anti-folates for the treatment of neoplastic diseases
Inventor: BEY PHILLIPE
IPC: C07D239/88
Filed: 1991-04-05
Abstract: This invention relates to certain conjugates of folates and antifolates with difluoroglutamic acid which are useful in the treatment of patients suffering from certain neoplastic diseases including leukemia, melanomas, carcinomas, sarcomas and mixed neoplasias.
Patent CA-2040054-A1 (CA)
Title: Process for the production of molded polyurethane foam articles and the molded articles obtained thereby
Inventor: NEUHAUS ALFRED
IPC: C08J9/02
Filed: 1991-04-09
Abstract: Mo-3544 LeA 27,641 PROCESS FOR THE PRODUCTION OF MOLDED  POLYURETHANE FOAM ARTICLES AND THE  MOLDED ARTICLES OBTAINED THEREBY                  ABSTRACT OF THE DISCLOSURE           The present invention is broadly directed to the production of integral skin polyurethane foams wherein the blowing agent used is a salt containing water of crystallization, which may also be used together with other chemical or physical blowing agents.
Patent CA-2040082-A1 (CA)
Title: Ensemble de distribution d'au moins un produit liquide ou sous forme de creme
Inventor: GUERET JEAN-LOUIS
IPC: B05B11/04
Filed: 1991-04-09
Abstract: Ensemble (1) de distribution d'au moins un produit liquide ou sous forme de crème. L'ensemble comporta un récipient (2) sur lequel est fixée une tête de distribution (3) comportant au moins un canal de distribution. L'extrémité du canal de distribution est fermée selon l'invention par un système de fermeture (F) comportant un clapet (51) en matériau souple qui coopère, en position de repos, de façon non étanche, avec une embase (41) rigide fixe ; le clapet (51) s'écarte de ladite embase (41), lors de la distribution, par déformation élastique, sous la poussée du produit à distribuer, puis, lorsque cesse la distribution, se met dans une position qui permet une reprise d'air. L'ensemble (1) peut comporter en amont du dispositif de fermeture (F) un dispositif de sécurité permettant de couper la communication entra le récipient (2) et le dispositif de fermeture (F).
Patent CA-2040690-A1 (CA)
Title: Lawn mowers
Inventor: DUNN KEN
IPC: A01D34/68
Filed: 1991-04-17
Abstract: ABSTRACT     This invention relates to grass cutting appliances. In particular a grass cutting appliance in the form of a lawn mower comprises  a hood, a cutting member mounted for rotation in a substantially horizontal plane within the hood, a handle for controlling directional movement of the appliance during a cutting operation, a power source disposed remotely from the cutting member and supported from the handle, and a drive line for driv-ingly connecting the power source and the cutting member.
Patent CA-2040980-A1 (CA)
Inventor: DESBIENDRAS DANIEL
IPC: C11D7/50
Filed: 1991-04-23
Abstract: Pour remplacer les compositions de nettoyage à base de 1,1,2-trichloro-1,2,2-trifluoroéthane(F113), l'invention propose une composition comprenant en poids 55 à 80% de 1,1,1,2,2-pentafluoro-3,3-dichloro propane (225 ca) et 45 à 20% de méthyl tert-butyl éther. Ces deux composés forment un azéotrope négatif (Eb. = 59,9 C à la pression normale). La composition, éventuellement stabilisée, peut être utilisée pour le nettoyage de surfaces solides, en particulier pour le défluxage des circuits imprimés et pour le dégraissage de pièces mécaniques.
Patent CA-2041531-A1 (CA)
Title: Aromatic polyethers containing azo groups
Inventor: KUMPF ROBERT J
IPC: C08G65/40
Filed: 1991-04-30
Abstract: Mo-3453 AROMATIC POLYETHERS CONTAINGING AZO GROUPS                 ABSTRACT OF THE DISCLOSURE         A dihalobenzenoid compound is reacted with a dihydric phenol containing an azo group in the presence of a base, an organic solvent and an azeotrope former.  Dihydric phenols which do not contain azo groups may also be included in the reactin mixture.  This reaction is generally carried out at a temperature of from about 20 to about 250°C under an inert atmosphere.  The polyether obtained is represented by the formula [-O-[E-O]z-E']x [O-E"-O-E'-]y in which E, E', E", x, y and z have the meaning specified herein.     Mo-3453
Patent CA-2042206-A1 (CA)
Inventor: SCHMIDT RICK A
IPC: F16B1/02
Filed: 1991-05-09
Abstract: ABSTRACT        A molding assembly comprising a molding apparatus defining a mold cavity, a fill gun communicating with the mold cavity, and a clamp assembly mounted on the molding apparatus for clampingly engaging the fill gun.
Patent CA-2042430-A1 (CA)
Title: Water treatment blend in solid form
Inventor: PARSONS CHARLES G
IPC: C01B11/06
Filed: 1991-05-13
Abstract: WATER TREATMENT BLEND IN SOLID FORM               Abstract of the Disclosure There is now provided a water treatment blend in solid form for disinfection and bacteriological stabilization of aqueous media.  The solid is an intimate blend of solid particulates and can provide prolonged release of both chlorine and bromine in aqueous media.  The blend contains one or more alkali metal or alkaline earth metal hypochlorite with one or more N-halogenated dialkylhydantoin,  The solid composition can combine excellent shelf stability with desirable disinfection property in use.  A blend of calcium hypochlorite with 1-bromo-3-chloro-5, 5-dimethylhydantoin is especially preferred.
Patent CA-2044602-A1 (CA)
Title: Tank construction in a bulk cargo transportation system consisting of a lorry and trailer
Inventor: MINKKINEN RISTO
IPC: B28C5/20
Filed: 1990-01-15
Abstract: The object of the invention is a tank construction in a bulk cargo transportation system consisting of a lorry (16) and trailer (1), in which revolving cylindrical tanks (3, 19) equipped with parallel interior spirals (9) are supported on the chassis (2, 20) of the lorry and trailer. The tanks are arranged to be placed sequentially by pushing the long cone of the first tank into the larger opening of the second tank, when by rotating the tanks (3, 19) the bulk cargo moves from the first tank to the second.  According to the invention, the longer part of the cone compared to the cone of the second tank (19) is formed as an interchangeable point (10) to be attached to or removed from the conical end (6), which point is adapted to be alternatively attached to the opposite conical end (15) in the other tank (19), and which tank construction includes locking elements (11) to lock the interchangeable point (10) to the conical end (6) and that the interior of the interchangeable point (10) includes a spiral (18) running in the same direction as the spiral (9) inside the tank (3) and that close to the opening the spiral (9) of the tank (3, 19) is low in order to permit penetration by the interchangeable point (10).
Patent CA-2045257-A1 (CA)
Title: Acyl benzoxazolinones, their preparation process and the pharmaceutical compositions containing them
Inventor: AIGHAOUI HOCINE
IPC: A61K31/44
Filed: 1991-06-21
Abstract: Derivatives of general formula (I): 
<IMAGE>
 in which:
 R1 represents a hydrogen atom or a lower alkyl group,
 A represents a hydrogen atom, and in this case B represents a group CO-G, G being:
 - either a heteroaryl group chosen from furan, indole, pyrrole, pyridine, quinoline, isoquinoline and benzofuran, optionally substituted with one or more lower alkyl or lower alkoxy groups or halogen atom,
 - or a linear or branched lower alkyl group substituted with a carboxyl group,
 - or a linear or branched lower alkenyl group substituted with a carboxyl group,
 - or a phenyl or naphthyl group substituted with a carboxyl group,
 or alternatively A forms with B a group CO(CH2)nCH(CH3) with n an integer equal to 1, 2, 3 or 4, the CO group being bound to the aromatic ring of the benzoxazolinone at position 5 or 6, as well as, where appropriate, their isomers and, when the compound of formula (I) possesses a carboxylic acid group, their addition salts with a pharmaceutically acceptable base, and when the compound of formula (I) contains a basic group, their addition salts with a pharmaceutically acceptable acid, on the understanding that lower alkyl and lower alkenyl mean linear or branched groups comprising from 1 to 6 carbon atoms. 
<??>Medicaments.
Patent CA-2048856-A1 (CA)
Title: 15-deoxyspergualin suppository
Inventor: HIRAGA HIRONOBU
IPC: A61K9/02
Filed: 1991-08-09
Abstract: A 15-deoxyspergualin suppository containing .beta.-form crystals of 15-deoxyspergualin trihydrochloride and a lipophylic base can give high plasma concentration of the drug when administered, and has good stability and low hygroscopicity.
Patent CA-2049685-A1 (CA)
Title: High impedance voltage indicator having capacitive voltage divider
Inventor: SCHWEITZER EDMUND O JR
IPC: G01R15/06
Filed: 1991-08-22
Abstract: A voltage indicator for instantaneously indicating the voltage level on an electrical conductor within a connector component in an AC power distribution system includes a housing for engaging the body of the connector component. Within the housing, the display electrodes of a multi-segment high impedance liquid crystal display component are coupled to the monitored conductor through a capacitive voltage divider to provide an unambiguous bar graph type indication of the voltage level on the conductor.
Patent CA-2050098-A1 (CA)
Title: Chemiluminescent lighting element
Inventor: LADYJENSKY JACQUES
IPC: A47L25/00
Filed: 1991-08-28
Abstract: 31698 TITLE OF THE INVENTION CHEMILUMINESCENT LIGHTING ELEMENT A chemiluminescent lighting element is disclosed comprising at least two chambers each containing one component of a chemiluminescent composition one of the chambers having walls of a nature or geometry such that exertion of external pressure on the element more easily reduces the volume of the one chamber than the other.
Patent CA-2052768-A1 (CA)
Title: Graphical method of indicating the position of and performing an operation on a plurality of selected objects in a computer system
Inventor: TORRES ROBERT J
IPC: G06F3/0481
Filed: 1991-10-04
Abstract: Disclosed is a method of indicating the position of multiple selections of objects in a windowed computer user interface.   The method includes displaying objects to be selected in a window which includes a scroll bar.  When objects in a the window are  selected,  a marker icon is automatically placed in the scroll bar in response to such selection.
Patent CA-2053485-A1 (CA)
Title: Substituted dihydrothieno-thiophene-2-sulfonamides and dioxides thereof
Inventor: BALDWIN JOHN J
IPC: C07D495/04
Filed: 1991-10-15
Abstract: TITLE OF THE INVENTION   AND DIOXIDES THEREOF            ABSTRACT OF THE INVENTION         Substituted 9,5-dihydrothieno[2,3-b]thio-phene-2-sulfonamides and 6,6-oxides and dioxides thereof and the isomeric 5,6-dihydrothieno[3,2-b]-thiophene-2-sulfonamides and 4,4-dioxides thereof are topically effective carbonic anhydrase inhibitors useful in the treatment of ocular hypertension and glaucoma associated therewith.
Patent CA-2054432-A1 (CA)
Title: Measuring instrument for maps, charts and the like
Inventor: WRIGHT JOHN
IPC: G01B3/10
Filed: 1991-10-29
Abstract: ABSTRACT            The present invention relates to a simple electronic calculating device that  facilitates the measuring and use of charts, maps, drawings, plans, etc..  The device is in the form of a retractable tape measure provided with a microprocessor, the tape measure being programmable to relate the scale of the chart, map or the like to the distance moved by the tape and produce a visible readout in real measurement on the tape measure housing of a distance on the chart as measured by the tape.
Patent CA-2055113-A1 (CA)
Title: Air bag system for an assistant driver's seat
Inventor: KOKEGUCHI AKIRA
IPC: B60R21/217
Filed: 1991-11-07
Abstract: Abstract of the disclosure An air bag system for an assistant driver's seat comprises a housing including an open face to allow air bag deployment, an air bag folded in the housing, a gas generator secured to the rear wall of the housing opposite to the open face, first outlets formed in the gas generator to allow gases to flow into the air bag stored in the housing, second outlets formed in the gas generator to allow the gases to flow out of the housing, a passage defined in the housing to provide a communication between the second outlets and the outside of the housing, and a release mechanism situated in the passage for allowing the gases to flow from the gas generator into the outside of the housing through the passage when the pressure of the gases flowing through the second outlets exceeds a predetermined level.
Patent CA-2057358-A1 (CA)
Title: Additive composition for cement admixture
Inventor: KOYATA HIDEO
IPC: C04B28/02
Filed: 1991-12-10
Abstract: ABSTRACT A cement admixture is disclosed which is capable of inhibiting slump loss without set retardation to hydraulic cement compositions.  The admixture is composed of a mixture comprising a copolymer of maleic anhydride and an oxyalkylene containing monomer, lignosulfonic acid or its salts and an anionic surfactant.
Patent CA-2059584-A1 (CA)
Title: Dispositif de controle electronique du diagramme de rayonnement d'une antenne a un ou plusieurs faisceaux de direction et/ou de largeur variable
Inventor: ROEDERER ANTOINE
IPC: H01Q21/20
Filed: 1992-01-17
Abstract: Ce dispositif comprend: un réseau (10) de N radiateurs, subdi-visé en P sous-réseaux (A, B, C, D) de M radiateurs chacun, chaque faisceau du diagramme spécifié utilisant une pluralité de radiateurs choisis parmi les radiateurs d'au moins certains des sous-réseaux; une source (20) de signal, commune; des moyens diviseurs de puis-sance (40), à une entrée et N sorties, pour distribuer le signal délivré par la source; des moyens (30) pour amplifier ledit signal; et des moyens pour exciter sélectivement par le signal amplifié, avec un déphasage contrôlé, au moins certains des radiateurs de manière à obtenir le diagramme de rayonnement spécifié, Selon l'invention il est prévu, entre les moyens diviseurs de puis-sance et les radiateurs; P groupes de M modules déphaseurs-ampli-ficateurs (30, 60), placés en sortie des moyens diviseurs de puis-sance; et P coupleurs (80) à M entrées et M sorties chacun, ces M entrées étant reliées aux M sorties correspondantes du groupe de modules déphaseurs-amplificateurs associé, et ces M sorties étant reliées aux M radiateurs du sous-réseau associé.   Le déphasage des modules déphaseurs-amplificateurs est choisi de manière à diriger la puissance délivrée par la source vers les radiateurs participant au diagramme de rayonnement spécifié, et à réalisier ainsi une amplification répartie du signal émis par la source en maintenant sur chaque amplificateur une charge essentiellement identique et constante quelles que soient les modifications apportées au diagramme.
Patent CA-2060564-A1 (CA)
Inventor: SUZUKI TORU
IPC: G06F3/038
Filed: 1992-02-03
Abstract: A wireless input device for computer comprises a pen-type input device having a source of light capable of transmitting pulses, The  wireless input device further comprises an input device body including two angle detecting section, each having a light receiving element constructed so that it is directed to direction of incident angle of incident light when the incident light from said source of light is detected, and calculating section for calculating the position of the pen-type input device from the two incident angles detected by the two angle detecting sections.
Patent CA-2062463-A1 (CA)
Inventor: SATOH YOSHIO
IPC: H03H9/145
Filed: 1992-03-06
Abstract: A surface acoustic wave device comprises a pair of multiple-electrode surface acoustic wave elements that are mirror-symmetrically arranged and disposed on a piezoelectric substrate.  Each of the multiple-electrode surface acoustic wave elements comprises a plurality of input/output inter-digital transducers and connected inter-digital transducers.  The number of the input/output inter-digital transducers is equal to or smaller by one, than the number of the connected inter-digital transducers, so that insertion loss of the surface acoustic wave device can be reduced without increasing the size of the device.
Patent CA-2063279-A1 (CA)
Inventor: SCHMIT LOUIS
IPC: F23K3/02
Filed: 1992-03-18
Abstract: PROCEDE ET DISPOSITIF DE TRAITEMENT DE CHARBON EN POUDRE DANS UNE INSTALLATION D'INJECTION DE COMBUSTIBLES SOLIDES La présente invention concerne en premier lieu un procédé de traitement de charbon en poudre dans une installation d'injection de combustibles solides. Une telle installation comprend un silo de stockage de charbon en poudre, au moins un sas relié au circuit de transport pneumatique du charbon, au moins un crible filtrant branché entre chaque sas et le silo, une source de gaz inerte sous pression pour la pressurisation de chaque sas et la formation du courant de propulsion pneumatique du charbon et un circuit d'égalisation de pression et de dépressurisation de chaque sas à travers un filtre. Selon la présente invention, la majeure partie du gaz inerte de dépressurisation de chaque sas est soumise à une opération de filtration avant d'être injectée dans le fond du silo de stockage dans la masse de charbon et d'être dégagée à travers un filtre au sommet du silo. La partie résiduelle du gaz inerte de dépressurisation est déviée directement vers le sommet dans le silo de stockage. La présente invention décrit également un dispositif pour la mise en oeuvre du procédé.
Patent CA-2065581-A1 (CA)
Title: Plasma enhancement apparatus and method for physical vapor deposition
Inventor: SATHRUM PAUL E
IPC: C23C16/50
Filed: 1992-04-08
Abstract: The present invention provides a plasma enhancement method and apparatus for electric arc vapor deposition.      The plasma enhancement apparatus is positioned to act upon plasma generated from a plasma source before the plasma reaches a substrate to be coated by the plasma. The plasma enhancement apparatus includes a magnet disposed about a magnet axis and defining a first aperture, and a core member disposed about a core member axis and at least partially nested within the first aperture. The core member defines a second aperture, and the plasma enhancement apparatus is arranged and configured in such a manner that the evaporated cathode source material passes from the cathode source and through the second aperture toward the substrate to be coated by the evaporated cathode source material. The plasma is favorably conditioned as it passes through the plasma enhancement apparatus.
Patent CA-2065724-A1 (CA)
Inventor: ANTHONY THOMAS R
IPC: C23C16/02
Filed: 1992-04-09
Abstract: RD-21,034 An Improved Method of Producing Articles by Chemical Vapor Deposition and The Support Mandrels Used Therein An improved method of producing a diamond tube by chemical vapor deposition and a hollow support mandrel used therein. The method comprises depositing a diamond film on an outer side of the hollow mandrel by the CVD process. The mandrel is then etched away by subjecting an inner side of the mandrel to the etching action. It was unexpectedly discovered that the etch time is drastically reduced by using the hollow mandrels.
Patent CA-2065988-A1 (CA)
Title: Telephone station set with flexible and rigid circuit boards
Inventor: BERRY MICHAEL E
IPC: H04M1/04
Filed: 1992-04-15
Abstract: TELEPHONE STATION SET WITH FLEXIBLE AND RIGID                CIRCUIT BOARDS          Abstract of the Disclosure The structure of a telephone set is configured so as to capture a rigid circuit conductor substrate and a more economical flexible circuit conductor substrate in predetermined juxtaposition with a compressed elastomeric element to facilitate an economical and reliable electrical connection between overlapping portions of the conductor substrates, and thereby reduce the cost of the telephone set.
Patent CA-2066537-A1 (CA)
Inventor: JOHNSON ARLEN K
IPC: H01P1/205
Filed: 1992-04-21
Abstract: An interdigital resonant cavity filter structure is folded to provide two adjacent chambers physically positioned side by side and electrically connected in series with each other. A center plate divides the two chambers with a slot at one end of the structure to permit the two chambers to function as one resonant cavity in a folded relation to each other. Each chamber includes interdigital resonators which are related to the overall resonant cavity to produce a band pass filter action within the folded resonant cavity. The input of the filter structure is applied through a port of a circulator connected to one end of the resonant cavity and the output is taken from another port of the circulator. The opposite end of the resonant cavity is terminated in the characteristic impedance of the resonant cavity thereby causing the overall structure to operate as a high quality notch filter.