baber/WOPTO huggingface dataset:
Patent CA-1297658-C (CA)
Title: Process for producing alumina-based fiber
Inventor: KADOKURA HIDEKIMI
IPC: C08G79/10
Filed: 1988-03-02
Granted: 1992-03-24
Abstract: ABSTRACT:         An organic solution of AlR1R2R3 (R1, R2 and R3: organic group or halogen) is reacted with water of the molar ratio of 1.01 to 1.45 to prepare a polyaluminoxane.          The polyaluminoxane is mixed with a silicon-containing compound, and the mixture is spun into precursor fibers, which are calcinated to obtain fibers containing aluminum-oxide and up to 70 W% of silica.  The alumina-based fibers have excellent mechanical properties and heat resistance.
Patent CA-1312865-C (CA)
Inventor: MAIGNAN JEAN
IPC: C07C59/90
Filed: 1988-03-31
Granted: 1993-01-19
Abstract: These derivatives correspond to the following formula: 
<IMAGE>
 in which:
 R1, R2, R3 and R4 denote, independently of each other, H or an alkyl radical, at least two of the radicals R1 to R4 being other H,
 A denotes a methylene or dimethylene radical and, when A denotes a dimethylene radical, R1 and R3 may together form a methylene or dimethylene radical,
 R5 and R6 denote H, a halogen, an alkyl radical, an alkoxy radical or OH,
 R' denotes H, OH, an alkoxy radical or an acyloxy radical,
 R" denotes H or an alkoxy radical,
 or R' and R", taken together, form an oxo or hydroxyimino radical,
 R8 denotes H or an alkyl radical
 and R7 denotes -OR9 or 
<IMAGE>
 
 R9 denoting H, an alkyl radical, a monohydroxyalkyl, polyhydroxyalkyl, aryl or aralkyl radical, optionally substituted, a sugar residue or a carboxyalkyl or alkoxycarbonylalkyl radical,
 r' and r" denoting H, an alkyl radical, a monohydroxyalkyl radical optionally interrupted by a hetero atom, a polyhydroxyalkyl radical, an aryl or benzyl radical, optionally substituted, a residue of amino acid or amino sugar or, taken together form a heterocyclic ring, optionally substituted by a C1-C3 hydroxyalkyl radical, and the salts of the said compounds of formula (I) and their optical isomers and the tautomeric forms of the compounds of formula (I).
Patent CA-1309099-C (CA)
Title: Reactive hindered amine light stabilizers
Inventor: KAZMIERCZAK ROBERT T
IPC: C07D211/94
Filed: 1988-04-19
Granted: 1992-10-20
Abstract: Abstract of the Disclosure N-(2,2,6,6-tetraalkyl-4-piperidinyl)amide-hydrazides of dicarboxylic acids contain a light stabilizing group, a heat stabilizing group, and a reactive hydrazide functionality in the same molecule.  The reactive stabilizers are prepared by reacting 4-amino-2,2,6,6-tetraalkylpiperidines with diesters (or mono ester acid chlorides) of dicarboxylic acids followed by hydrazinolysis of the ester group of the intermediate mono ester-amide.  The compounds are useful for introducing permanent heat and light stability to coreactive polymers or copolymers.
Patent CA-1303086-C (CA)
Title: Device for application of dynamic force and simulation of movements
Inventor: HERMANSON CARL G
IPC: A63B23/035
Filed: 1988-05-17
Granted: 1992-06-09
Abstract: ABSTRACT           There is disclosed a device for application of dynamic forces on and/or for simulation of movements by a training person using it, the device having an elastic band, and comprising a base plate on which at least three spaced-apart deflecting elements are fitted to accommodate and guide the elastic band.
Patent CA-1306577-C (CA)
Title: Polyamide and use thereof
Inventor: TAGUCHI TORU
IPC: C08L77/06
Filed: 1988-07-13
Granted: 1992-08-18
Abstract: ABSTRACT     A polyamide comprising from 60 to 100 % by mole of divalent terephthaloylalkylenediamine constituent units (a), from 0 to 40 % by mole of divalent diacyloylalkylenediamine constituent units (b) and from 0.1 to 5 % by mole of trivalent diacyloylalkylenediamine units (c), said constituent units (a), (b) and (c) being arranged at random to provide a branched linear structure, said polyamide being free from a gel-forming cross-linked structure and soluble in concentrated sulfuric acid and having: an intrinsic viscosity [?] of from 0.5 to 3 dl/g, as measured in concentrated sulfuric acid at a temperature of 30°C., a melting point of from 280°C to 370°C. and a glass transition temperature of from 100°C to 160°C., as measured by means of a differential scanning calorimeter at a heating rate of 10°C/min., and a crystallinity of from 10 to 30 X, as measured by X-ray diffractometry. The polyamide has an excellent gas-barrier property, and thus, it is useful in applications where a gas-barrier property is particularly required, alone or in blend or lamination with other melt-moldable polymers.
Patent CA-1314588-C (CA)
Title: Alkali metal polysilica gel electrolyte lead-acid battery and method for making the same
Inventor: MISRA SUDHAN S
IPC: H01M10/10
Filed: 1988-07-26
Granted: 1993-03-16
Abstract: ABSTRACT A  method  for  producing  a lead-acid battery having a thixotropic  gel  electrolyte,  comprising  combining  an aqueous colloidal  dispersion of  alkali metal polysilica with sulfuric acid while introducing the combination into a lead-acid battery precursor.  A lead-acid battery comprising a battery case, positive and negative metal plates spaced one from another within said case  and a  thixotropic gel electrolyte within said case and  providing electrolytic  connection between said positive   and   negative   plates,   comprising   sodium polysilica, sulfuric acid and water.
Patent CA-1327765-C (CA)
Inventor: BAYNE JIMMY O
IPC: B65F3/02
Filed: 1988-09-02
Granted: 1994-03-15
Abstract: ABSTRACT OF THE INVENTION A lifting  apparatus includes two pairs of lift arms having respective displaced pivot points on a movable carriage for projecting such carriage towards a refuse-receiving container, and in an inverted position so as to dump the contents of a receptacle held on such carriage.  The arms nest in a co-planar orientation when the carriage is in its fully lowered position, to minimize apparatus width. Various frame supports permit garbage truck and large trash container mounts, and fixed and mobile free-standing mounts. A particular hydraulic rotary motor having a relatively thin width may be used to power the apparatus, or drive other types of loads.  The hydraulic rotary motor has meshed rack and pinion teeth generally enclosed within a cylinder immersed in hydraulic fluid passing therethrough to actuate a piston.  The fluid lubricates the moving components for prolonging their service life with less maintenance.  Plural cylinders may be aligned in parallel, and share a common pinion gear output shaft, with each cylinder having a reciprocating piston rod supporting rack teeth for engagement with such pinion gear.
Patent CA-1322129-C (CA)
Title: Dispositif pour couper un fil textile
Inventor: JIMENEZ ANTONIO
IPC: D05B65/00
Filed: 1988-09-20
Granted: 1993-09-14
Abstract: Le coupe-fil comprend une tige avec une tête et une portion sensiblement cylindrique, appuyée contre la tête par un ressort, Dans l'espace est logé un organe coupant, présentant des encoches en forme de V et disposé de façon qu'un fil engagé entre la partie et la tête vienne s'engager dans une des encoches pour être coupé.
Patent CA-1331379-C (CA)
Inventor: TSUJI JIRO
IPC: C07J71/00
Filed: 1988-09-28
Granted: 1994-08-09
Abstract: Abstract The present invention provides novel pregnane derivatives of the formula:                     (I) and a process for its production, for use as synthetic intermediates for the production of vitamin D3 derivatives having a hydroxy group in the 1.alpha.-position such as 1.alpha.-hydroxy-vitamin D3. In the above formula (I), A1 is in the .alpha.-configuration and represents a hydrogen atom or a hydroxyl group, and A2 is such that where A1 is in the .alpha.-configuration and represents a hydrogen atom, A2 is in the .beta.-configuration and represents a hydroxyl group, an acyloxy group, a lower alkoxycarbonyloxy group, an N-lower alkylcarbamoyloxy group, an N-arylcarbamoyloxy group, an N,N-di(lower alkyl) carbamoyloxy group, a tri-(lower alkyl or phenyl) substituted silyloxy group, an alkoxymethoxy group or alkoxymethoxy group substituted by methoxy and that where A1 is in the .alpha.-configur-ation and represents a hydroxyl group, A2  is in the .beta.-configuration and represents a hydrogen atom, or A1 and A2 jointly represent an oxo group (=O); D1 is in the .alpha.-config-uration and represents a hydroxyl group, an acyloxy group, a lower alkoxycarbonyloxy group, an N-lower alkylcarbamoyloxy group, an N-arylcarbamoyloxy group, an N,N-di(lower alkyl)carbamoyloxy group, a tri-(lower alkyl or phenyl) substituted silyloxy group or an alkoxymethoxy group, alkoxymethoxy group substituted by methoxy, and D2 is in the .alpha.-configuration and represents a hydrogen atom, or D1 and D2 jointly represent an epoxy group (-O-) which is in the .alpha.-configuration or a single bond; D3 is in the .alpha.-configuration and represents a hydrogen atom, D4 is in the .alpha.-configuration and represents a hydroxyl group, D5 is in the .alpha.-configuration and represents a hydrogen atom, D6 is in the .alpha.-configuration and represents a hydroxyl group, a lower alkoxycarbonyloxy group, an acyloxy group, an N-lower alkylcarbamoyloxy group, an N-arylcarbamoyloxy group or an N,N-di(lower alkyl)-carbamoyloxy group, D7 is in the .beta.-configuration and represents a hydrogen atom; provided that D3 and D4 may jointly represent an epoxy group (-O-) which is in the .alpha.-configuration or a single bond, D4 and D5 may jointly represent a single bond, D5 and D6 may jointly represent an epoxy group (-O-) which is in the .alpha.-configuration or a single bond, and D6 and D7 may jointly represent a single bond; and X1 and X2 each is a lower alkoxy group or jointly represent a lower alkylenedioxy group or an oxo group (=O); with the proviso that, when D4 and D5 jointly represent a single bond, D6 and D7 jointly represent a single bond, D2 represents hydrogen, D3 represents hydrogen, D1 represents a hydroxyl group, a C1-4 acyloxy group or a C1-4 alkoxy carbonyl group, and A1 is hydrogen or hydroxyl, A2 is hydroxyl, a C1-4 acyloxy group or a  C1-4 alkyloxy carbonyl group, X1 and X2 jointly represent an oxo group (=O).
Patent CA-1300289-C (CA)
Title: Passive universal communicator
Inventor: NYSEN PAUL A
IPC: H04W88/02
Filed: 1988-10-26
Granted: 1992-05-05
Abstract: ABSTRACT          Apparatus  for  two-way  communication  between  a transmitter/receiver unit (called a controller), and at least one second transmitter/receiver unit (called a communicator).          The controller includes means for pseudo-randomly varying the frequency or phase of a carrier signal and means for mixing the carrier signal with a second modulated carrier signal, thereby to provide security against jamming, eavesdropping, and/or range gating on said first or second electromagnetic wave signal.
Patent CA-1306153-C (CA)
Title: Barbeque using only paper as a fuel
Inventor: ELLIS DANIEL R
IPC: A47J37/07
Filed: 1988-11-01
Granted: 1992-08-11
Abstract: ABSTRACT A portable, collapsible, light-weight barbeque has sides with a laminated paper exterior and a metal foil interior with a heat shield therebetween. The side walls are formed from four inverted trapezoidal panels that can be interconnected to one another along their side edges.  The barbeque is designed to burn newspaper and can provide up to twelve minutes of cooking time with no more than six double sheets of newsprint.  The burning of the newsprint is automatically controlled so that the temperature at the grill is substantially constant at approximately 400°F during the cooking time.  The bottom and sides of the barbeque remain relatively cool to the touch.  While the barbeque is inexpensive enough to be disposed of after one use, it is durable enough to provide at least ten uses.
Patent CA-1339391-C (CA)
Inventor: MARMAROSI KATALIN
IPC: C09K19/00
Filed: 1988-11-04
Granted: 1997-09-02
Abstract: The invention relates to a graft lyotropic liquid crystalline composition having a viscosity less than 10 Pa.s comprising a relative low amount of surfactant(s), optionally co-surfactant(s), and/or solvents, optionally a polymer being in relative stretched state and is partly or totally penetrable by the medium and a solid material having a surface free energy of 18 to 240 mN/m.
Patent CA-1334114-C (CA)
Inventor: SMITH DAVID W
IPC: H04J14/08
Filed: 1988-11-25
Granted: 1995-01-24
Abstract: Apparatus   for   converting   a   frequency   division multiplex (fdm) signal to a time domain multiplex (tdm) signal in which a voltage controlled oscillator (21) whose output is a staircase of reference frequencies mixed by a mixer  (20)  with  a  received  fdm  signal.   Each  received frequency  is  output  in  turn  at  a  common  intermediate frequency from a bandpass filter 22 thereby forming a fdm signal after passing through a demodulator (23) and low pass filter (24).  The conversion may take place in the optical  domain  by  mixing  optical  reference  frequencies with an optical fdm signal  in,  for example,  a coherent heterodyne optical receiver.
Patent CA-1315060-C (CA)
Title: End portion-treating method for synthetic resin film and device therefor
Inventor: HISANAGA AKINORI
IPC: B29C48/12
Filed: 1989-02-02
Granted: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE        Disclosed is an end portion-treating method applicable to a process of manufacturing a synthetic resin film by first extruding through a slit die or coating by the use of a coater onto or on a conveyor belt or drum a fluid synthetic resin composition in a smooth layer form and then solidifying it, the improvement wherein a gas is blown at both end portions of the film of a fluid synthetic resin composition extruded onto the surface of a conveyor belt or drum to change the sectional form of both end portions as desired and the device used for carrying out the end portion-treatment described above.  According to the invention, a synthetic resin film is obtained without creasing in the process of drying, cooling or the like of the film or lifting of the film off the surface of the conveyor belt etc. and a film of superior quality can be provided without fail, and also since both longitudinal end portions of the film obtained need not be trimmed off and discarded, the film manufacturing yield is improved and the manufacturing cost is reduced substantially.
Patent CA-1307009-C (CA)
Inventor: ARRETZ EMMANUEL
IPC: C07C319/06
Filed: 1989-02-06
Granted: 1992-09-01
Abstract: Synthesis of dithiols and more particularly that of  alpha , omega -dithiols containing from 5 to 20 carbon atoms. 
<??>The process according to the invention consists in reacting a di(tert-alkylthio)alkane with hydrogen sulphide in the presence of a solid acidic catalyst. The alkanethiol is obtained selectively with, as by-product, a tert-alkyl mercaptan which can be reemployed in a cyclic process to produce the starting di(tert-alkylthio)alkane.
Patent CA-1319841-C (CA)
Title: Method of determining the quality of steam for stimulating hydrocarbon production
Inventor: REDUS CLIFFORD L
IPC: G01F1/40
Filed: 1989-03-01
Granted: 1993-07-06
Abstract: METHOD OF DETERMINING THE QUALITY OF STEAM     FOR STIMULATING HYDROCARBON PRODUCTION            (D#78,696,-F) ABSTRACT           The use  of  an orifice plate  in series with  a critical flow choke provides a method of measurement for both steam quality and mass flowrate.  Neither the orifice plate or the choke alone can be used to measure steam quality and mass  flowrate.   However,  an expression  for steam quality through both devices is obtained by solving an independent mass flowrate equation for each device - an equation for wet steam through the critical flow choke and an equation for wet steam through a sharp edged orifice plate.
Patent CA-1278194-C (CA)
Title: Operational timer circuit for monitoring a motor under load
Inventor: MARBLE ALLAN
IPC: G04F10/04
Filed: 1989-05-15
Granted: 1990-12-27
Abstract: ABSTRACT         Disclosed is a circuit for detecting and recording the cumulative time during which an electrical device is operating under load, the device current being at a first predetermined level when the device is on and at or above a second predetermined level when the device is under load.  The circuit comprises a device current detection circuit connected in series with the device for receiving current through the device and outputting a voltage proportional to current through the device.  An amplifier has an input connected to receive the voltage from the device current detection circuit and has an output connected to an input of a voltage level detector, said voltage level detector having an output connected to one input of a gate and providing an enabling signal to the one gate input when the device current is at least at the second predetermined level.  The gate has a second input connected to receive pulses from a source of clock pulses and has an output connected to an input of a counter, the counter having an output connected to a display means.
Patent CA-1337500-C (CA)
Inventor: HILL PAUL LESLIE
IPC: B22D41/46
Filed: 1989-05-19
Granted: 1995-11-07
Abstract: Apparatus is provided for removing or disrupting a blockage  from the  pour  opening  of  a  molten  metal containment vessel.   The vessel has an elongated conduit extending from the pour opening outwardly of the vessel for passage of molten metal  from the vessel via the pour opening and the conduit to an outlet of the conduit:  and the apparatus comprises a gas conduit connectible to a supply of pressurised gas (e.g. oxygen or an inert gas) and extending into the molten metal conduit through the outlet of said conduit to provide a barrel which is secured in said  conduit  and  aimed  at  the  pour  opening;    and a projectile  loaded  in  the  barrel  and,  on  admission  of pressurised gas to the gas conduit, propellable towards the pour opening to  impact on any blockage  therein.   The projectile may comprise a leading end portion comprising material adapted to generate a chemical reaction to facilitate removal or disruption of the blockage.
Patent CA-1320623-C (CA)
Inventor: SALYER IVAL O
IPC: C08L23/06
Filed: 1989-05-26
Granted: 1993-07-27
Abstract: Abstract A composite useful in thermal energy storage, said composite being formed of a polyolefin matrix having a phase change material such as a crystalline alkyl hydrocarbon incorporated therein.  The composite is useful in forming pellets, sheets or fibers having thermal energy storage characteristics; methods for forming the composite are also disclosed.
Patent CA-1333687-C (CA)
Inventor: YAMAJI KEIZOU
IPC: A61L9/00
Filed: 1989-06-21
Granted: 1994-12-27
Abstract: This invention is concerned with a process for producing deodorizing cellulose fibers on which a considerable amount of copper hydroxide and/or zinc hydroxide is fixed highly strongly, which process is characterized in that cellulose fibers are allowed to contact with a colloidal solution of copper hydroxide and/or zinc hydroxide prepared by adding an alkaline substance to an aqueous solution of a water-soluble copper compound and/or a water-soluble zinc compound. Deodorizing fibers so obtained are capable of effectively removing malodorous gaseous substances, such as hydrogen sulfide, ammonia, methyl mercaptan, etc., and exhibit excellent deodorizing effects. In addition, the deodorizing fibers, although they can be an excellent deodorizing material as they are, are excellent in workability and hence can be used in the form of a shaped product, including, e.g., granules, sheets, etc. They can therefore be applied to various used in the field of deodorization.
Patent CA-1330921-C (CA)
Inventor: PODD GEORGE O
IPC: B42D15/00
Filed: 1989-06-29
Granted: 1994-07-26
Abstract: Abstract A movable index mounted on a base sheet for reciprocal movement which movement is controlled, guided and limited by track means and track-follower means.
Patent CA-1330111-C (CA)
Inventor: FISHER JAMES R
IPC: G01P3/66
Filed: 1989-08-17
Granted: 1994-06-07
Abstract: ABSTRACT            A system used for monitoring the flow and speed of traffic has a strip member comprising electrical contacts, such that, when a vehicle drives over the strip, the weight of the vehicle on the contacts cause a monitoring and/or timing means to be activated and subsequently deactivated.  The monitoring and/or timing means is programmable to distinguish vehicle types and between a plurality of vehicles passing over the strip at the same time.
Patent CA-1332632-C (CA)
Inventor: CHEN SEN-TSUEN
IPC: G01V1/104
Filed: 1989-09-26
Granted: 1994-10-18
Abstract: ABSTRACT          A downhole seismic acoustical signal source capable of selectively firing numerous, prewired explosive charges.  The downhole seismic source uses a self-contained firing circuit that is capable of receiving select and fire signals from a seismic crew at the ground surface through a standard seven conductor wireline cable to detonate the explosive charges.  The downhole seismic source is capable of generating numerous signals in a given downhole trip through the firing of many individual explosive charges.
Patent CA-1326235-C (CA)
Title: Composes steroides utiles pour la preparation de produits de la serie 20-ceto pregnane
Inventor: VIVAT MICHEL
IPC: C07J9/00
Filed: 1991-01-21
Granted: 1994-01-18
Abstract: L'invention concerne les composés de formule (III): <IMG> (III) caractérisé en ce que Hal représente un atome d'halogène à l'exception de l'atome de fluor, et en ce que R, représente un atome d'hydrogène ou un radical méthyle, R2 représente un radical méthyle ou éthyle, les noyaux A, B, C, D portent ou non une ou plusieurs doubles liaisons et sont non-substitués ou substitués par une ou plusieurs fonctions hydroxyle ou cétone non-protégées ou protégées, par un ou plusieurs atomes d'halogène, par un ou plusieurs radicaux alkyle ou alkoxy renfermant de 1 à 4 atomes de carbone ou par un ou plusieurs radicaux alkényle ou alkynyle renfermant de 2 à 4 atomes de carbone, R représente un atome d'halogène, un radical hydroxyle, un radical alkoxy ayant de 1 à 6 atomes de carbone, un radical aralkoxy ayant de 7 à 15 atomes de. carbone, un radical: <IMG> , dans lequel R3 et R4, identiques ou différents, représentent un atome d'hydrogène, un radical alkyle ayant de 1 à 6 atomes de carbone, un radical aralkyle ayant de 7 à 15 atomes de carbone ou R3 et R4 forment ensemble avec l'atome d'azote auquel ils sont liés un hétérocycle comportant ou non un autre hétéroatome choisi parmi les atomes d'azote et d'oxygène, ou R représenté un radical alkylthio ayant de 1 à 6 atomes de carbone, un radical arylthio ou aralkylthio ayant au plus 15 atomes de carbone; à l'exception des produits 23, 23-dichloro-N- éthylcholanamide et 3-acétoxy-23,23-dichloro-N-éthyl-cholanamide. Ces composés de formule (III) sont utiles pour la préparation de produits de la série 20- céto prégnane.
Patent DK-157224-C (DK)
Inventor: GERKE DIETER
IPC: H01R4/24
Filed: 1984-03-29
Granted: 1990-04-23
Abstract: The subject matter of the instant invention is formed by U-shaped, solderless, non-screwed and stripping-free, LSA-PLUS terminals (2, 2a) adapted to be tandem-mounted in longitudinal direction in a terminal strip (1). The terminals are disposed at a relative offset of 180 DEG  so that two respective adjacent U-shaped terminals (2, 2a), when viewed from the top, form generally an either X-shape (3) or an O-shape (4).
Patent DK-153782-C (DK)
Inventor: VANLAUTEM NOEEL
IPC: C07C51/09
Filed: 1981-07-02
Granted: 1989-01-16
Abstract: Poly- beta -hydroxybutyrates obtained by biosynthesis are hydrolyzed in a reaction mixture containing poly- beta -hydroxybutyrates, water and an acid catalyst, in a solvent.