baber/WOPTO huggingface dataset:
Patent CA-2069492-A1 (CA)
Title: Aromatic polyesters and a method for producing the same
Inventor: NITTA ITARU
IPC: C08G63/60
Filed: 1991-10-07
Abstract: ABSTRACT OF THE DISCLOSURE          An aromatic polyester superior in heat resistance and mechanical properties and satisfactory in lightness and color tone is provided.  The aromatic polyester has resorcinol structure, has the formula (1), (1)   wherein R is halogen, C1-C5 alkyl, or phenyl; m is an integer of 0 to 2, and when m is 2, the two substituents represented by R may be different from each other; and gives a powder fraction having a lightness (L value) of 70 or more and a red degree (a value) of 5 or less, which powder fraction is obtained by pulverizing the heat-resistant aromatic polyester, sieving the pulverized polyester by Tyler standard sieves and being allowed to pass through 60-mesh sieve but not 325-mesh sieve.
Patent CA-2070887-A1 (CA)
Inventor: SACHS ISAAC
IPC: H02G7/05
Filed: 1992-06-09
Abstract: A cable clamp for holding a cable suspended from a support, comprises a shell member having a mouth opening for the passage of the cable, first and second elongated inner abutment surfaces against which first and second portions of the cable received through the mouth opening are adapted to bear,  the first  and second inner  abutment  surfaces being disposed in opposed spaced-apart facing relationship to each other and extending along respective longitudinal axes which intersect one another at an acute angle; and a movable wedge member  having  first  and  second  outer  abutment  surfaces cooperating  with  the  first  and  second  inner  abutment surfaces, respectively, to wedge the first and second cable portions, and a third outer abutment surface intermediate the first and second outer abutment surfaces. When the cable is passed through the mouth opening and looped about the wedge member so as  to extend in a direction towards  the mouth opening with the first and second cable portions extending between the first inner and outer abutment surfaces and the second inner and outer abutment surfaces, respectively, and the cable is pulled in such a direction, a loop portion of the cable intermediate the first and second cable portions engages the third outer abutment surface to thereby move the wedge  member  from  a  non-wedging  position  to  a  wedging position whereat the first  and second cable portions  are clamped between the first inner and outer abutment surfaces and  the   second   inner   and   outer   abutment   surfaces, respectively.  The  cable  clamp  of  the  invention  further includes attachment means for attaching the shell member to the support such that the shell member is spaced from the support. Such a cable clamp has a high load capacity and can be used for suspending multi-wire cables.
Patent CA-2072832-A1 (CA)
Title: Spinal orthosis
Inventor: ZAMOSKY GARY
IPC: A61F5/01
Filed: 1992-06-30
Abstract: ABSTRACT OF THE DISCLOSURE A spinal orthosis is provided with a continuous interior framework of 1/8" low density polyethylene, sandwiched between layers of 1/4" thick aliplast, with an anterior opening to provide cosmetic acceptability and independence of the user for placing on and removing the orthosis.  A floating abdominal apron is provided to cover the anterior opening and the orthosis is devoid of joints and hinges to accomplish flexion and extension.
Patent CA-2073330-A1 (CA)
Inventor: ABBOTT BENJAMIN P
IPC: H01L41/08
Filed: 1991-11-18
Abstract: A Lithium Tantalate crystal, defined by the Euler angles lambda (.lambda.) equal to about 0· and mu (µ) equal to about 90· with an acoustic wave propagation direction angle theta (.THETA.) in the range of plus 130· to plus 150· and preferably equal to about plus 141.25·, offers unique properties for surface acoustic wave device applications.
Patent CA-2074609-A1 (CA)
Title: Inhibition of scale formation by polyepoxysuccinic acid
Inventor: CARTER CHARLES G
IPC: C02F5/10
Filed: 1992-07-24
Abstract: ABSTRACT OF THE INVENTION      A method for inhibiting or preventing the formation of scale on surfaces in contact with an aqueous system comprising adding to the system a polyepoxysuccinic acid having the formula   wherein n is from 3 to 40, and wherein the polyepoxy-succinic acid is added in an amount effective to inhibit scale formation.
Patent CA-2074974-A1 (CA)
Title: Demodulator for digitally modulated wave
Inventor: ISHIKAWA TATSUYA
IPC: H04L27/00
Filed: 1992-07-30
Abstract: A QPSK modulated wave is inputted to an in-phase detector and an orthogonal detector.  The detected components are converted to substantially a base band, and each component is digital-converted by A/D converters.  Each digital component is spectrum-shaped by digital LPFs.  The outputs of digital LPFs are inputted to a complex multiplier and calculated by use of first and second reproduction carriers and expressed as first and second calculation outputs, and inputted to a phase detector.  The phase detector obtains phase difference data between the phase expressed by the first and second calculation outputs and a predetermined phase and quadrant data of the phase.  The phase difference data is used for a PLL.  The phase difference data is inputted to a frequency error detection circuit detecting a frequency error.  The frequency error output is smoothed by a filter of an AFC loop, and used as a control signal controlling the oscillation frequency of the local oscillation unit.  If the frequency error is large, the frequency error detection circuit controls the AFC loop to be in an operation state and the PPL loop to be fixed state.          If the frequency error is small, the frequency error detection circuit contains the control state of the AFC loop and switches the PLL loop to be the operation state.
Patent CA-2075531-A1 (CA)
Inventor: MASHAYEKHI MANSOUR
IPC: C10C1/18
Filed: 1992-08-07
Abstract: A process and apparatus for the filtration of a creosote process stream laden with insoluble materials is provided. The apparatus comprises a filter of a shell-and-tube configuration having filter material within for the separation of the xylene from the insolubles; the apparatus is comprised within a creosote filtration system which further includes a means for periodically backflushing the filtration system to reduce clogging of the filter material. The process and apparatus herein also finds use for filtration of other materials, including tars, pitches, and wastewaters.
Patent CA-2076166-A1 (CA)
Title: Highly regular multi-arm star polymers
Inventor: ZHOU LIN-LIN
IPC: C07F7/12
Filed: 1992-08-14
Abstract: A carbosilane-based hybrid star polymer having a carbosilane core of large size and addition polymer chains emanating from the core, is described. The carbosilane core is formed from a central silane nucleus and built up by repeated alternating hydrosilylation of reactive vinylic sites followed by vinylation of silicon halide reactive sites. The core is reacted with living addition prepolymers to form the hybrid star polymer. The minimum core size to give the desired properties corresponds to that having at least about 48 reactive silicon halide sites on the periphery. These highly regular hybrid star polymers have unique solution and gelling agent properties and form highly structured and rigid gels, and also act as viscosity modifiers. The large carbosilane core having either vinyl or silicon halide reactive sites can be used as a reactive intermediate.
Patent CA-2076926-A1 (CA)
Inventor: NAKAJIMA KAZUHIRO
IPC: B41J2/175
Filed: 1992-08-26
Abstract: A liquid container includes a plurality of chambers; a liquid supply port provided in one of the chambers; an air vent provided in another one of the chambers; and a continuous liquid supply material, wherein adjacent ones of the chambers are in fluid communication with each other only through the liquid supply material.
Patent CA-2076948-A1 (CA)
Title: Isatineoxime derivatives, their preparation and use
Inventor: WATJEN FRANK
IPC: A61K31/4738
Filed: 1992-08-26
Abstract: A compound having the formula (See formula I) wherein R4 and R5 independently are hydrogen, halogen, CF3, CN, NO2 or SO2NR1R2 wherein R1 is hydrogen or straight, C1-6-alkyl which may be branched or cyclic, R2 is hydrogen or straight, C1-6-alkyl which may be branched or cyclic, or wherein R1 and R2 together represent -(CH2)n;-A-(CH2)m-. wherein A is O, S, CH2 or NR I, wherein R I is H, C1-6-alkyl which may be straight, branched or cyclic, n is 0, 1, 2, 3, 4, 5 and m is 0, 1, 2, 3, 4, 5;      Q is NOH, O;        Z = O, S, N-R II, (See formulas)  wherein R II, R III, R IV and R V independently are hydrogen, benzyl, C1-6-aryl, C1-6-alkoxy which may be branched or cyclic, or C1-6-alkyl which may be branched or cyclic;      X is -(CH2)o- wherein a is 0, 1, 2, or 3;      Y is -(CH2)p- wherein p is 0, 1, 2 or 3; .alpha. and .beta. indicate attachment points, and a method of treating disorders of a mammal, including a human, responsive to the blockade of glutamic and aspartic acid receptors, with the same.
Patent CA-2078665-A1 (CA)
Title: Catalyst system of enhanced productivity
Inventor: HLATKY GREGORY G
IPC: C08F4/642
Filed: 1991-03-19
Abstract: This invention relates to catalyst systems, and a method for using such system, for the enhanced production of homo and copolymer products of olefin, diolefin and/or acetylenically unsaturated monomers. This invention catalyst system comprises a Group III-A element compound for improving the productivity of an olefin polymerization catalyst which is the reaction product of a metallocene of a Group IV-B transition metal and an ionic activator compound comprising a cation capable of donating a proton and an anion which is bulky, labile and noncoordinateable with the Group IV transition metal cation produced upon reac-tion of the metallocene and activator compound to form the catalyst component of the catalyst system.
Patent CA-2079859-A1 (CA)
Inventor: MORIKAWA KATSUMI
IPC: B22D35/00
Filed: 1992-10-05
Abstract: ABSTRACT OF THE DISCLOSURE       Disclosed herein is a casting apparatus for low-melting metals which has a coating layer of two-layered structure which hardly reacts with low-melting metals, adheres  firmly  to  the  substrate,  and  protects  the substrate from thermal and mechanical shocks for a long period of time.  The layer in contact with the substrate contains glass  powder  having  a  melting  point  below 1000°C and at least one binder selected from silicates and phosphates.  The layer in contact with molten metal contains 5 - 80 wt% of at least one fluorine compound (as a corrosion resistant material)  having a melting point of above 700°C.   Owing to the multiple layers, each  having  a  specialized  function,  the  casting apparatus has improved durability over a long period of time.
Patent CA-2081892-A1 (CA)
Inventor: WHITE GEORGE
IPC: F16L58/18
Filed: 1991-05-01
Abstract: 2081892 9117362 PCTABS00008 A method of joining two sections of metallic pipe (1), each of which has a thermoplastic polymer lining (3), to form corrosion resistant joints is disclosed. The method comprises inserting a sleeve (10) into each section of two pipes (1) that are to be joined so as to form a fluid tight seal between the liner (3) and the sleeve (10). The end of each section of pipe is then bevelled, and the two sections are welded together so as to form a corrosion resistant weld between each section of pipe and each sleeve and between each of the sleeves. The method is particularly useful in the lining of metallic pipe in the field e.g. in pipelines, without having to form flange joints.
Patent CA-2082654-A1 (CA)
Inventor: CITTA RICHARD W
IPC: H04N21/438
Filed: 1992-03-05
Abstract: ABSTRACT OF THE DISCLOSURE    A television signal transmission system is used for transmitting an N-level video related data signal.  The data signal is processed prior to transmission such that the majority of N-level symbols comprises a non-negative level for facilitating receiver lock-up.  An in-phase pilot component may be added to the transmission by D.C. offsetting the processed signal to further facilitate the receiver lock-up.  The processed signal is precoded by a modulo-N filter and postcoded by a complementary linear filter in the receiver to reduce interfering NTSC components.  In the absence of interfering NTSC components, a complementary modulo-N postcoding filter may be used in the receiver to provide improved signal to noise performance.
Patent CA-2083562-A1 (CA)
Inventor: PROSSER NEIL MARK
IPC: F25J3/04
Filed: 1993-01-20
Abstract: A cryogenic rectification system for producing elevated pressure product wherein the lower pressure column of a two column system is operated at elevated pressure and nitrogen-containing fluid taken from the upper portion of the lower pressure column is used to generate plant refrigeration and to regenerate feed purifier adsorbent beds thus avoiding the need for any feed expansion.
Patent CA-2084271-A1 (CA)
Inventor: DREIMAN NELIK I
IPC: F04B39/02
Filed: 1992-12-01
Abstract: An oil baffle means for sealing and separating the running gear cavity in a hermetic reciprocating piston compressor from an oil sump in a lower part of the compressor housing.  The oil baffle includes a L-shaped flange connected to the outboard bearing and crankcase of the compressor.  Horizontal ribs and a dimple on the vertical portion of the oil baffle bias the baffle into sealing contact with the crankcase preventing oil from the oil sump to flow into the running gear cavity.
Patent CA-2084562-A1 (CA)
Title: Liquid crystals with (polysila) alkyl wing groups
Inventor: HAEBERLE NORMAN
IPC: C07J51/00
Filed: 1992-12-04
Abstract: LIQUID CRYSTALS WITH (POLYSILA)ALKYL WING GROUPS      Abstract of the Disclosure A compound of the general formula M-(CH2)n-(O)m-[-D-B-]q-Y,                      (I) in which M represents a silicon radical having 2 to 5 silicon atoms which are linked together by bridging elements A, and the remaining valencies of the silicon atoms are saturated with radicals R; A is a bridging element selected from the group consisting of C1- to C8-alkylene radicals and oxygen with the proviso that at least one radical A per M radical is a C1-to C8-alkylene radical; R represents optionally fluorine or chlorine atom- or cyano group-substituted straight-chain C1- to C10-alkyl or C2- to C10-alkenyl radicals, branched chain C3- to C10-alkyl or C3- to C10-alkenyl radicals, optionally C1- to C4-alkyl-  C1- to C4-alkoxy radicals, fluorine, chlorine, bromine atom, cyano, trifluoromethyl or nitro radical substituted C6- to C12-cyclo-alkyl, C6- to C12- cycloalkenyl, C6- to C12-alkylcycloalkyl, C6-to C12-alkylcycloalkenyl, C6- to C12-aryl or C6- to C12-aralkyl radicals; n is an integer of from 3 to 12; m is 0 or 1; D repre-sents  isocyclic or heterocyclic saturated or unsaturated 5- or 6-membered rings; B represents a linking group selected from the group consisting of a chemical bond, a -COO-, -OOC-, -CH2-CH2-, -CH=CH-, -C=C-, -CH=N-, -N=CH-, -CH2-O-, -O-CH2- and -N=N- group; q is an integer of from 1 to 3; Y is a hydrogen atom or a straight-chain or branched chain C1- to C10-alkyl or C1-to C10-alkoxy group or a radical D which is provided with a hydrogen atom or substituted, in which 1 or 2 ring substituents may be C1- to C4-alkyl, C1- to C4-alkoxy radicals, fluorine, chlorine or bromine atoms, cyano, trifluoromethyl or nitro radicals, or a cholesteryl radical.     These compounds are liquid crystals and can be employed alone or in admixture with other liquid crystals.
Patent CA-2085116-A1 (CA)
Title: Device for evaluating logarithms
Inventor: LINDSLEY BRETT L
IPC: G06F7/556
Filed: 1991-06-17
Abstract: A logarithm of an input value is computed utilizing a function generator (106) to generate a first logarithm of an approximation value (102) of the input value, scaled to a natural logarithm value where the first logarithm is not a natural base logarithm, and then combined (110) with a correction value, obtaining a natural base logarithm of the input value. An error value, related to the input value and the approximation value, is generated (104) and is utilized in a specified power series to determine the correction value (108). The natural base logarithm obtained is scaled by a natural base logarithm of a desired base of a desired output logarithm, thereby determining the desired output logarithm of the input value that has the desired base.
Patent CA-2089622-A1 (CA)
Title: Weed Extraction Device
Inventor: GREEN WILLIAM J
IPC: A01B1/16
Filed: 1993-02-16
Abstract: A weed extraction device for digging, cutting, twisting and pulling out weeds.  The weed extraction device includes a rod member  from which a handle is formed by bending the rod  member.          The handle is useful in pushing the device into the ground and to twist the device to twist out the weeds and by which the user can pull  the weed from the ground without bending  over.    The  rod member  also includes a foot step which is formed by bending  the rod member and is useful in pushing the device into the ground to the  depth  of the tap root.   Attached permanently  to  the  rod member  is the root trap which is a half-cone  or  hemi-conically shaped cutting, coring and compacting portion of the device.  The root  trap is useful to dig into the ground,  cut a  cone  shaped plug,  compact  the tap root and branch roots and twist  out  the weed  including  the tap root which prevents the root  from  ever growing again.  The cutting teeth of the root trap on the leading edge  of the root trap cut the branch roots and free  the  branch roots  from attachment to the soil.   The twisting action of  the handle, rod member and the root trap results in the twisting free of  the  weed.   The device is used to pull the weed out  of  the ground from the standing,  upright position with little effort or back strain.
Patent CA-2091025-A1 (CA)
Title: Method of operating a gas turbine group
Inventor: FRUTSCHI HANS U
IPC: F02C6/16
Filed: 1993-03-04
Abstract: ABSTRACT OF THE DISCLOSURE    In a method of operating a gas turbine group (34) with or without integrated steam process (20) and with or without  an  air  reservoir  installation  (20),  a  series connection with one and the same air mass flow (16, 17) is used for cooling one or more structures (15, 18, 19) which are in effective connection with the mass flow of the gas turbine  group  ( 34 ), the  cooling  air mass  flow being extracted from a position which has a sufficiently low temperature.        (Fig. 1)
Patent CA-2093134-A1 (CA)
Inventor: GUHL JAMES C
IPC: E05F1/10
Filed: 1991-11-27
Abstract: A counterbalanced window operator includes a rotatable drive member operatively connected to the pivoting end of the window by means of an arm member (29). A spring (40) occupying a fixed orientation is operatively connected to the arm member (29) to counterbalance the torque transmitted from the window to the arm member (29). In a preferred embodiment, double scissors arm members (250a and 250b) include a pair of first arm members (251a and 251b) that define a first plane and a pair of second arm members (252a and 252b) that define a second plane at an oblique angle relative to the first plane when the window is in an open position.
Patent CA-2095215-A1 (CA)
Inventor: MIDGLEY ROLAND R
IPC: B65H35/07
Filed: 1991-12-05
Abstract: A method for applying loops formed from a supply length of elongate strip material in spaced relationship along a substrate.  Lengths are cut from the supply length, and have their ends supported on peripheral surfaces of two circular disks mounted with their axes oriented to position portions of the peripheral surfaces of the disks on which the lengths are positioned at a wide spacing at a first location and to position portions of the peripheral surfaces of the disks at a close spacing significantly closer than the wide spacing at a second location generally diametrically across the disks from the first location and along a path for the substrate. Spaced portions of the lengths are held along the peripheral surfaces of the disks during rotation of the disks to move the predetermined lengths from the first location to the second location thereby forming the lengths into generally U-shaped loops, and those U-shaped loops are transferred and attached to the substrate at the second location.
Patent CA-2095383-A1 (CA)
Title: Far infrared ray radiator
Inventor: KATAOKA YASUHIKO
IPC: H05B6/00
Filed: 1993-05-03
Abstract: ABSTRACT             A far infrared ray radiator is capable of effectively heating or cooling substances to be heated or cooled by far infrared rays. The far infrared ray radiative particles are sealed in a metal made vessel including air communication holes.
Patent CA-2097545-A1 (CA)
Inventor: BRUST STEFAN
IPC: G01N33/543
Filed: 1993-06-02
Abstract: The invention relates to a process for the immunochemical determination of an analyte in a sample by means of a first specific binding partner, where the specific binding partner being immobilized on a support and the extent of the binding of the analyte to the specific binding partner being determined by means of a further specific binding partner which directly or indirectly bears a label, wherein there is additionally added to the process a binding factor, which is not labelled.
Patent CA-2103894-A1 (CA)
Title: Aryl sulphonyl urea compounds, a method of preparing them, and their use as herbicides and growth regulators
Inventor: BAUER KLAUS
IPC: A01N47/36
Filed: 1992-02-12
Abstract: Arylsulfonylureas, processes for their preparation, and their use as herbicides and growth regulators The invention relates to novel herbicidal and plant growth-regulating compounds of the formula (I) or salts thereof, (see formula I) where Q, W, R, R, R, R, Y and Z are defined as in formula (I) as claimed in claim 1.        They can be obtained by reacting novel compounds of the formula (see formula II) with a heterocyclic carbamate of the formula (III) (see formula III) where R' is unsubstituted or substituted aryl or alkyl.     Analogously, they may be prepared by reacting a phenyl-sulfonyl carbamate or sulfonyl isocyanate corresponding to the compound (II) with a compound of the formula (V):     (see formula V) The herbicides are particularly suitable for selectively controlling weeds.
Patent CA-2105171-A1 (CA)
Title: Aliphatic propargylamines as selective mao-b inhibitors and as neuroprotective agents
Inventor: DAVIS BRUCE A
IPC: A61P25/28
Filed: 1992-02-28
Abstract: The invention relates to a series of propargylamines, their salts and pharmaceutical compositions containing a compound of formula (III) wherein R1, R3 and R4 are the same or different and represent hydrogen or a straight chain or branched lower alkyl; y is an integer ranging from 0 to 5; z is an integer ranging from 0 to 5; and R2 is a straight chain or branched alkyl, alkenyl, alkynyl, alkoxy, alkylthio or alkyl sulphinyl group having from 3 to 11 carbon atoms, said group being unsubstituted or substituted with at least one of the substituents selected from hydroxy, aldehyde, oxo, loweracyloxy, halogen, thio, sulfoxide, sulfone, phenyl, halogen-substituted phenyl, hydroxy-substituted phenyl, cycloalkyl having from 3 to 6 carbon atoms and heterocyclic substituents having between 3 and 6 atoms, of which form 1 to 3 are heteroatoms selected from O, S and/or N, and pharmaceutically acceptable salts thereof, in admixture with a pharmaceutically acceptable carrier, excipient or adjuvant. The compounds are useful as selective monoamine oxidase B inhibitors and have demonstrated neuroprotective properties in human and veterinary medicine.
Patent CA-2105813-A1 (CA)
Title: Method of increasing hair shine and repairing alkaline-damaged hair
Inventor: HOSHOWSKI MYRA A
IPC: A61K8/67
Filed: 1993-09-09
Abstract: A method of treating hair that has been damaged and/or dulled as a result of an alkaline hair treatment including contacting the hair with a solution of weak acid having a pH in the range of about 2.0 to about 5.0, preferably about 2.0 to about 3.8 and having at least 0.75 milliequivalent of free acid per milliliter of solution, to restore natural shine to the dulled hair and to repair uplifted cuticles, if any, that have resulted from the alkaline hair treatment.