baber/WOPTO huggingface dataset:
Patent CA-1340099-C (CA)
Title: Method for in vitro immunisation of lymphocytes for use in production ofhuman monoclonal antibodies and kit therefor
Inventor: BORREBAECK CARL
IPC: C12N5/00
Filed: 1987-09-03
Granted: 1998-10-27
Abstract: A method for the removal of, for in vitro immunisation, undesired cells from human lymphocyte containing cell populations is disclosed.  For the method, use is made of lysosomotropic agents which are caused to act in vitro on human lymphocyte containing cell populations.  Also disclosed is a method in the in vitro immunisation of lymphocytes for use in the production of human monoclonal antibodies.  In this method, lysosomotropic agents are caused to act in vitro on human lymphocyte containing cell populations for removing cell populations having a negative effect on the in vitro immunisation, whereupon the lymphocytes are in vitro immunised antigen-specifically and immortalised.          Finally, a kit for in vitro immunisation of lymphocytes for use in the production of human monoclonal antibodies is disclosed.  The kit comprises as active constituents a container containing lymphokines and a container containing lysosomotropic agents.
Patent CA-1276733-C (CA)
Title: Data multiplex transmission system
Inventor: TAKANO HIROSHI
IPC: H04J3/06
Filed: 1987-10-08
Granted: 1990-11-20
Abstract: ABSTRACT         A data multiplex transmission system including a data multiplexer, a demultiplex controller and a clock generator for terminal interface is disclosed, in which one block of an error correction code of a variable word length whose rate can be easily matched with the multiplex rate is set into one transmission frame.  The multiframes of the least common multiple of the number of multiframes such that the multiplex rate which cannot be matched in one transmission frame is matched are set, thereby allowing the bit stuff reference timing to be integratedly handled.  Further, transmission frame header information and control data link are provided, thereby allowing the multiplex transmission to be executed in accordance with a predetermined communication procedure.  This transmission frame can realize the advanced communication by the header information and control data link.  Thus, the data multiplex transmission can be performed with a simple construction while keeping the high efficiency and high reliability.  Further, the transmission frame pull-in time is reduced by the bit error permission type pattern matching for the multiframe sync bits.
Patent CA-1292994-C (CA)
Title: Procede de preparation de trifluoroacetate d'ethyle
Inventor: AMIET LOUIS
IPC: C07C67/08
Filed: 1987-10-15
Granted: 1991-12-10
Abstract: BREVET D'INVENTION PROCEDE DE PREPARATION DE TRIFLUOROACETATE D'ETHYLE Société dite : RHONE-POULENC Chimie Inventeur : Monsieur Louis AMIET DU TECHNIQUE DE L'INVENTION La présente invention concerne un nouveau procédé de préparation de trifluoroacétate d'éthyle ou : - dans une première étape on met en contact l'acide trifluoroacétique avec un léger excès d'éthanol en présence d'acide sulfurique concentré et d'un solvant présentant un point d'ébullition supérieur à celui de l'acide trifluoroacétique, une densité inférieure à l et ne formant pas d'azéotrope avec le trifluoroacétate d'éthyle puis on procède à une décantation avec élimination de la couche sulfurique ; - dans une deuxième étape on introduit une quantité supplémentaire d'acide sulfurique et d'acide trifluoroacétique puis on procède à une décantation en éliminant la couche sulfurique ; - dans une troisième étape on effectue une distillation du mélange obtenu à la deuxième étape avec récupération du trifluoroacétate d'éthyle pur.
Patent CA-1282739-C (CA)
Title: Auxiliary hoist grapple
Inventor: LANIGAN JOHN J JR
IPC: B66C1/66
Filed: 1987-10-19
Granted: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE           A crane and lift apparatus for controlling the operation of primary hoist and bridge means, and gantry drive functions of the equipment.  There is provided an auxiliary hoist grapple apparatus to unload containers stacked one above another from one location to another parallel thereto, from one roadway to a parallel roadway, or from one flat bed railroad car to another flat bed railroad car disposed upon a track that is parallel to and adjacent to the track on which the first railroad car is located.  The apparatus is adaptable to straddle two locations, parallel roadways, or parallel railroad tracks and effect interchange of containers to and from trucks or railroad cars positioned on the parallel roadways or tracks.  The apparatus permits locking of the main stabilizing beam at an uppermost position to clear double stacked containers and provides secondary vertical motion so as to reach down adjacent the stacked container and pick up a container from a lower most position resting on the ground or from a truck or a flat bed railroad car.  The apparatus permits selective raising and lowering of cable supported containers up to as much as thirty feet from ground level.
Patent CA-1340739-C (CA)
Title: Process for transforming plant protoplasts
Inventor: NEGRUTIU IOAN
IPC: C12N15/07
Filed: 1987-12-03
Granted: 1999-09-14
Abstract: Process for the transformation of a plant genotype, wherein plant protoplasts are isolated from any plant tissue and cultured in one of the nutrient media customarily used for culturing plant protoplasts; before the actual transformation, the said protoplasts are pre-incubated at a temperature of from 4° to 10°C for from 20 minutes to 6 hours in a pre-incubation medium containing Ca2+, K+ and Na+ ions and also a suitable carbon source; the protoplasts are then separated from the pre-incubation medium and resuspended in the actual transformation medium which contains as an essential component from 0.1 to 60 mM Mg2+ ions in the presence or absence of Ca2+ ions; directly thereafter a DNA sample, containing one or more genes under the control of expression signals active in plants and also a supporting DNA, is added to the transformation solution; from 0.1 to 10 minutes later, a plasma membrane-modifying agent in a concentration of from 10 % to 30 % is added, and the protoplasts and DNA sample are incubated in the said transformation solution for a period that is sufficient for the incorporation of the DNA into the protoplasts.      The transfer of the genetic material into the plant cell is carried out directly, without the use of a natural plant-infective system such as a plant bacterium or plant virus, and without transfer by insects or phytopathogenic fungi, by joint incubation in a suitable incubation medium of the DNA to be transformed and plant protoplasts. In this manner, desired genes can very simply and efficiently beg transferred to plant material, resulting in plants with improved properties.
Patent CA-1290817-C (CA)
Title: Power supply apparatus
Inventor: SAKAMOTO KAZUHO
IPC: H05B6/66
Filed: 1987-12-15
Granted: 1991-10-15
Abstract: Abstract:   A power supply apparatus for use with a high-frequency heater employs a transformer for increasing the voltage of power provided by a commercial power supply that has been converted into a high-frequency by a transducer.  The transformer feeds the converted power into a load that has unidirectional electrical current characteristics, e.g. those of a magnetron.  The generated voltage is reduced by a tuning circuit connected to the transformer and having a resonant frequency higher (preferably a higher harmonic) than the operating frequency of the transformer.  The result is avoidance of corona and arc discharges and an ability to reduce the insulation withstand voltage between the windings of the transformer.
Patent CA-1323349-C (CA)
Inventor: TEDIOLI PIER G
IPC: A47J42/06
Filed: 1988-01-13
Granted: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE     A grinding device, particularly for grinding pepper or salt grains, comprises a container for the grains, a grinder positioned on the bottom of said container, a battery-fed electric motor, a reduction unit with high gear ratio, and a drive shaft connecting the reduction unit to the grinder and crossing  said  container.  Said  device  is  formed  of  two disengageable bodies, one of which consists of a motor unit comprising the motor,  the reduction unit, the feed battery and a control push-button, and the other of which consists of  a  container  having  a  rotary  grinder mounted on  its bottom, one end of the drive shaft being fixedly connected to the grinder. In said device, the other end of the drive shaft and,  respectively,  the outlet gear of the reduction unit have reciprocal connection means apt to be disengaged.
Patent CA-1307143-C (CA)
Title: Method and apparatus for controlling weld bead shape to eliminate microfissure defects when shape melting austenitic materials
Inventor: AYRES PAUL S
IPC: B23K9/04
Filed: 1988-01-25
Granted: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for eliminating microfissure defects in shape melted austenitic material components by closely controlling the deposited weld bead shape to a geometry where the underbead shape has no sharp discontinuities. Oscillation of the welding torch head during the process is used to smooth out the weldbead shape and is especially adapted for use with gas metal-arc welding processes.
Patent CA-1327249-C (CA)
Inventor: MARX HANS-NORBERT
IPC: C08L75/04
Filed: 1988-01-26
Granted: 1994-02-22
Abstract: PROCESS FOR THE PREPARATION OF FLAME RESISTANT POLYURETHANE COMPOSITIONS                     Abstract of Disclosure Flame resistant foams and other compositions containing polyurethane and/or polyisocyanurate groups are prepared by reacting an organic polyisocyanate with a polyol in the presence of flame retardants, catalysts, blowing agents as well as optionally chain extenders, cross-linkers auxiliaries and additives.  The flame retardents comprise a phenol or melamine formaldehyde condensate, pentaerythritol as well as ammonium phosphate and preferably in addition dicyandiamide.
Patent CA-1333529-C (CA)
Inventor: HOWELL PETER J
IPC: G01N1/04
Filed: 1988-02-11
Granted: 1994-12-20
Abstract: A  sample  of  a  biological  tissue  and/or  fluid, particularly  plant  sap,  may be taken by placing biological tissue such as a leaf between a layer which is adsorbent for detectable biological material  (for example nitrocellulose)  and a substrate and applying pressure to urge the adsorbent layer and the substrate towards  each  other,  thereby  causing  detectable biological material to be adsorbed on the adsorbent layer. The invention thus provides a convenient method of obtaining,  securing and transporting small samples of plant sap or other fluid or tissue to the laboratory for such purposes as analysis for plant viruses and other organisms.
Patent CA-1296620-C (CA)
Title: Selectively releasable and reengagable expansion joint for subterranean well tubing strings
Inventor: GONZALEZ MANUEL E
IPC: E21B17/06
Filed: 1988-03-04
Granted: 1992-03-03
Abstract: SELECTIVELY RELEASABLE AND REENGAGABLE EXPANSION JOINT FOR   SUBTERRANEAN WELL TUBING STRINGS     ABSTRACT OF THE DISCLOSURE           The invention provides an apparatus for limiting tension produced in a tubular string extending from a packer set in a subterranean well to the well surface.  Such apparatus comprises a receptacle secured to the packer and defining an elongated seal bore, and a mandrel telescopically and sealably related to the seal bore, the mandrel being connected to the bottom end of the tubing string. In one embodiment, means such as a collet, incorporated in the receptacle for cooperating with an abutment formed on the mandrel, thereby securing the mandrel and the receptacle in a telescopically contracted position until sufficient tensile force is exerted on the mandrel to cause the collet arms to be expanded by the abutment to permit upward movement of the mandrel relative to the receptacle.
Patent CA-1315472-C (CA)
Title: Thymopentin retro-inverso analogs and fragments thereof, a process of preparation of the new compounds and the intermediates obtained therein
Inventor: SISTO ALESSANDRO
IPC: C07K7/02
Filed: 1988-03-11
Granted: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE:            New retro-inverso analogs of thymopentin (TP5) and of its tripeptide fragment (TP51-3) of general formula (I):                                           (I) are described wherein R is hydrogen or an acyl radical, and R1 is -OR2, wherein R2 is hydrogen or a hydrocarbyl radical, and the corresponding pharmaceutically acceptable acid- or base-addition salts.  The new compounds are enzyme-resistant immunomodulatory peptides.
Patent CA-1303491-C (CA)
Title: Immunoassay device
Inventor: KHANNA PYARE
IPC: G01N37/00
Filed: 1988-04-06
Granted: 1992-06-16
Abstract: ABSTRACT OF THE DISCLOSURE      A device is disclosed for conducting an assay method.  The device comprises a housing, means enclosed in the housing for capturing a member of a specific binding pair in a zone and for allowing liquid to be transported by capillary action away from the zone, one or more self contained liquid reagents enclosed in the housing for conducting an assay method for the determination of an analyte in the sample, and means in the housing for introducing the sample into the device. Preferably, the self-contained reagents are liquid reagents which are contained in a breakable container. The device of the invention finds use in assay methods for the determination of an analyte in a sample suspected of containing the analyte. ?Kits for conducting an assay method are also disclosed.
Patent CA-1322368-C (CA)
Title: Fused heteroalkylene quinolinamines, a process and intermediates for their preparation and their use as medicaments
Inventor: SHUTSKE GREGORY M
IPC: A61P25/02
Filed: 1988-04-22
Granted: 1993-09-21
Abstract: ABSTRACT            There are disclosed compounds having the formula   wherein n is 1-4; R is hydrogen, loweralkyl or loweralkylcarbonyl; R1 is hydrogen, loweralkyl, loweralkylcarbonyl, aryl, diloweralkylaminoloweralkyl, arylloweralkyl, diarylloweralkyl, oxygen-bridged arylloweralkyl, or oxygen-bridged diaryllowerallyl; A is a direct bond or (CHR3)m, m being 1-3; X is hydrogen, loweralkyl, cycloalkyl, loweralkoxy, halogen, hydroxy, nitro, trifluoromethyl, formyl, loweralkylcarbonyl, arylcarbonyl, -SH, loweralkylthio, -NHCOR4 or -NR5R6, R4 being hydrogen or loweralkyl, and R5 and R6 being independently hydrogen, loweralkyl or cycloalkyl; Y is O, S or NR7; and each R2, each R3 and R7 are independently hydrogen or loweralkyl, or taken two at a time form a methylene or ethylene group constituting a part of a ring of at least five atoms; stereo, optical and geometrical isomers thereof, and pharmaceutically acceptable acid addition salts thereof, which are useful for enhancing memory.
Patent CA-1313804-C (CA)
Inventor: GRANT ELENA M
IPC: A61M1/06
Filed: 1988-04-26
Granted: 1993-02-23
Abstract: Abstract of the Disclosure A breast pump including a vacuum pump (12), vacuum hose (22), collection container (20), and a milk pumping flange (18) for application to a woman's breast for removing milk from the breast, all included within a small carrying case when not in use.  The flange includes flexible mouth (32) and throat portions (46) and is generally conical with an elliptical cross section and an interior shape including raised portions simulating the tongue and jaw of a baby. The flange attaches sealingly to a collection container such as a nursing bottle, and vacuum created within the bottle by the pump and hose is applied through the flange to the woman's breast, while a vent opening (78) controls application and release of vacuum.  During use the woman can massage her breast through the flexible flange and can control the rhythm with which suction is applied and relaxed, to pump milk more quickly.
Patent CA-1314112-C (CA)
Title: Heat-resistant resin compositions, and heat-resistant molded or formed articles and production process thereof
Inventor: SATAKE YOSHIKATSU
IPC: C08G75/0227
Filed: 1988-05-12
Granted: 1993-03-02
Abstract: ABSTRACT      Heat-resistant resin composition comprising (A) 100 parts by weight of a polytarylene sulfide) of a substantially linear structure containing 50% by weight or higher of recurring units of the formula    and a logarithmic viscosity number of 0.1 to 1.0 d?/g;          (B) from 0.01 to less than 25 parts by weight of a melt-stable poly(arylene thioether-ketone) having predominant recurring units of the formula        wherein the -CO- and -S- are in the para position to each other, and having a melting point of 310-380°C, a residual melt crystallization enthalpy of at least 10 J/g, a melt crystallization temperature of at least 210°C and a reduced viscosity of 0.2 to 2 d?/g; and (C) at least one of fibrous fibers and/or at least one of inorganic fillers in a proportion of 0 to 400 parts by weight per 100 parts by weight of the resin component comprising said poly(arylene sulfide) and said poly(arylene thioether-ketone). Heat-resistant articles obtained by melt-molding or forming said resin compositions and a method for the production of such articles are also described.
Patent CA-1288846-C (CA)
Title: Broadcast conferencing arrangement
Inventor: BARAL ELLIOTT
IPC: H04M3/56
Filed: 1988-05-12
Granted: 1991-09-10
Abstract: BROADCAST CONFERENCING ARRANGEMENT     Abstract A method and apparatus for setting up a digital broadcast call from a transmitting station to a group of receiving stations over a public switched network. A time slot interchange unit (TSIU) is used to replicate a signal, received from a transmitting station at an input port of the TSIU, to a group ofoutput ports of the TSIU for transmission to a group of receiving stations. A data base, shared by a group of switching systems of the public switched network, includes data, activated during a preselected period of time, to translate each of two preselected numbers to one of two corresponding internal routing numbers of the switched network for accessing the input port and output ports of the TSIU, respectively. When the transmitting station dials the first preselected number and each of the receiving stations dials the second preselected number, the data base translates these numbers into the corresponding internal routing numbers for setting up a connection from the transmitting and receiving stations to the incoming port and the outgoing ports, respectively, of the TSIU. Advantageously,the broadcast circuit is made available to the broadcast conferees for a period of time limited by the active time of the translations in the data base.
Patent CA-1310635-C (CA)
Title: Starch and products produced therefrom
Inventor: FRIEDMAN ROBERT B
IPC: A23L27/00
Filed: 1988-05-30
Granted: 1992-11-24
Abstract: NOVEL STARCH AND PRODUCTS PRODUCED THEREFROM     Abstract of the Disclosure A substantially pure starch extracted from a starch bearing plant having a waxy shrunken-1 genotype is disclosed.          Maize is the preferred plant.  The sols produced for such starch exhibits superior freeze-thaw stability compared to sols made from chemically modified starches.  A thickener composition and foodstuff containing the starch are also disclosed.
Patent CA-1317024-C (CA)
Title: Recovery of luminance and chrominance information from an encoded color television signal
Inventor: LANG STUART E
IPC: H04N9/66
Filed: 1988-06-08
Granted: 1993-04-27
Abstract: Abstract of the Disclosure An apparatus and method for decoding an encoded video signal combs a two dimensional array of pixels from a single field of the encoded video signal according to selected weighting factors to obtain a weighted average chrominance value.  The weighted average chrominance value is subtracted from the encoded value to obtain an initial luminance value. The initial luminance value is corrected for residual chrominance errors that exist at edges in the picture represented by the encoded video signal.  The luminance correction is based upon the chrominance difference across the edge and upon the orientation of the edge.  The corrected luminance value may then be subtracted from the corresponding encoded video value to obtain a corrected chrominance value.
Patent CA-1316837-C (CA)
Title: Rotating filter with outer filtrate conduits
Inventor: NILSSON BJARNE
IPC: B01D33/21
Filed: 1988-06-23
Granted: 1993-04-27
Abstract: ABSTRACT   A disk filter including a plurality of rotatable, annular filter disks arranged mutually spaced in an axial direction, and disposed for being partially immersed in a liquid or a suspension to be filtered. Each filter disk comprises a plurality of filter sections which are in communication with axially directed filtrate conduits arranged in the peripheries of the disks for discharge of filtrate. The filtrate conduits are provided with backwash barriers which are adapted to prevent liquid flow from the filtrate conduits radially inwards when the filter sections rise above the liquid surface. The backwash barriers have been achieved by each filter section being connected to an axial filtrate conduit in the form of a pipe, the main portion of the cross-section of the pipe at the place of attachment being located after each part of the filter section as seen in the direction of rotation.
Patent CA-1302582-C (CA)
Title: Apparatus and method for control of asynchronous program interrupt events in a data processing system
Inventor: CUTLER DAVID N
IPC: G06F9/48
Filed: 1988-06-30
Granted: 1992-06-02
Abstract: ABSTRACT    In a data processing system having a kernel mode (i.e.,  for executing privileged instructions) and a user mode of operation, apparatus for responding to interrupt  conditions  includes  a  first  register, subject  to the  control  of  the currently  executing program for enabling the generation of a mode-related interrupt signal and includes a second register for indicating  the  presence  of  a  pending  mode-related interrupt  condition  and  a  third  register  for requesting a mode-related interrupt be entered in the second  register.   The  mode  of  operation  and  the enable and pending interrupt condition registers are monitored and when the signals in the two registers have  the  appropriate  relationship,  an  interrupt signal is generated to which a control program will respond.  The contents of the first register can be controlled by the currently executing program which can  control  the  enabling  signal  for  the currently executing mode.  The pending interrupt condition and the request registers may be accessed only from the privileged mode of operation.
Patent CA-1291954-C (CA)
Title: Protective device for pipe ends
Inventor: DREYFUSS WILFRIED
IPC: F16L57/00
Filed: 1988-06-30
Granted: 1991-11-12
Abstract: A protective device for pipe-ends comprises, depending upon whether it is used as a cap or a plug, a metal housing having a sleeve-like insert of elastomeric material or a metal plug having a sleeve-like cover of elastomeric material.  In order to improve the stability of the protective device, the metal housing or metal plug, each of which is of tubular design, comprises, at the outer end, a knurled or folded edge, preferably in the form of a rolled edge.  In order to facilitate production of the protective device, the insert or cover may consist of at least two partly cylindrical casing parts adapted to be joined together.
Patent CA-1303286-C (CA)
Title: Process for the preparation of aliphatic polycarbonates
Inventor: PIEJKO KARL-ERWIN
IPC: C08G64/30
Filed: 1988-07-12
Granted: 1992-06-09
Abstract: Process for the preparation of aliphatic polycarbonates Abstract Process for the preparation of aliphatic polycar-bonates by polymerizing cyclic aliphatic carbonates in the presence of initiators and/or catalysts, in which the initiators used are alkoxysilanes of the formula I    in which R1, R2 and R3 independently of one another represent a C1-C4-alkyl radical, n is an integer from 1 to 6 and R4 denotes an n-valent, optionally substituted, aliphatic hydrocarbon radical, and the catalysts used are the nucleophilic catalysts which are known from group transfer polymerization.            Le A 25 268-Foreign countries