baber/WOPTO huggingface dataset:
Patent CA-2003938-A1 (CA)
IPC: H04L27/20
Filed: 1989-11-27
Abstract: Abstract of the Disclosure A CPFSK quadrature modulator (300) is disclosed utilizing an all-digital implementation. The serial data input signal (201) is formatted into parallel overlapping bits using a shift register (202), an up/down counter (206), and an interpolation counter (204), and applied as address lines to in-phase and quadrature-phase memories (208, 210). A multiple of the bit clock is used to address carrier generation ROMs (216, 218). The carrier signal is then modulated by the in-phase and quadrature-phase data signals (212, 214, 222), converted to an analog signal by a D/A converter (250), and low pass filtered (254) to generate the analog output signal (255). A single ROM (440) is utilized to implement all the look-up tables, multipliers, and adder. The all-digital implementation allows for precise control of the modulation index to h=0.5 ? 0.05 percent over time, temperature, power levels, etc.
Patent CA-2004447-A1 (CA)
Title: Sound absorbent slats for window blinds
Inventor: HSU HENRY C
IPC: E06B9/26
Filed: 1989-12-01
Abstract: ABSTRACT OF THE DISCLOSURE            A slat for use in the assembly of a Venetian blind is provided with a light and sound absorptive coating on at least one of its major surfaces produced by flocking, applique, or textile weaving techniques, a preferred embodiment of the invention providing a strip  having  enhanced  resistance  to  slippage  of  a  coating appliqued to the strip and of a textile encapsulation of the strip in directions laterally and longitudinally of the strip.
Patent CA-2005497-A1 (CA)
IPC: F24F11/76
Filed: 1989-12-14
Abstract: VAV SYSTEM COORDINATOR            ABSTRACT OF THE DISCLOSURE         A microcomputer-based system coordinator for variable air volume (VAV) system through which conditioned air is supplied to a plurality of zones.  The VAV system coordinator (VSC) is used to coordinate a central system VAV cooling and heating operation based on the zone requirements of its associated slave thermostats and fan box monitors.  The VSC is used as a slave VSC which receives information from zone thermosats and fan box monitors and communicates with a master VSC which is used for overall system coordination.  The VSC also receives information from temperature and humidity sensors and the real time for use in system operation.
Patent CA-2005741-A1 (CA)
Title: Quinoline sulfonoamino compounds having vessel smooth muscle relaxation activity
Inventor: HIDAKA HIROYOSHI
IPC: C07D401/12
Filed: 1989-12-15
Abstract: The present invention discloses a compound represented by the formula:     (see fig. I) wherein R1 is selected from the group consisting of a hydrogen atom,  a lower alkyl,  an amino-substituted lower alkyl,  a dimethyl amino-substituted lower alkyl, an acetoxy-substituted lower alkyl and a hydroxy-substituted lower alkyl; R10 is selected from the group consisting of a hydrogen atom, hydroxy, a lower alkoxy, benzyloxy, methylphenylsulfonyloxy, isoquinolylsulfonyloxy,  naphthylsulfonyloxy,  amino,  methylamino, isoquinolylsulfonylamino,    methyl/isoquinolylsulfonyl-disubstituted amino, phthalidyl, nitro, methylsulfonylamino, methyl/methylsulfonyl-disubstituted amino,  methyl naphthyl-sulfonyl-disubstituted amino, and methyl/methylphenylsulfonyl-disubstituted amino; R11 is selected from the group consisting of a hydrogen atom, hydroxy and benzyloxy; R12 and R13 are hydrogen atom, or together form a carbonyl group; and R14 is selected from the group consisting of a hydrogen atom, phenyl, halogen-substituted phenyl, methyl phenyl, methoxy phenyl, phenylcarbonyl,    benzylcarbonyl,    phenylethylcarbonyl, butoxycarbonyl,    benzylaminocarbonyl,    benzyloxycarbonyl, aralkyl, phenylsulfonyl, benzylsulfonyl, isoquinolylsulfonyl, and phenylaminocarbonyl.  Such compounds have a vessel smooth muscle relaxation activity as well as a platelet agglutination inhibitory activity and inhibitory activity to protein kinase A, myosin light chain kinase, proteinkinase C, and calmodul-independent proteinkinase II, but have little action or cardio function.
Patent CA-2007138-A1 (CA)
Title: Diversity reception control circuit
Inventor: SATO KAZUYOSHI
IPC: H04B7/08
Filed: 1990-01-04
Abstract: A diversity control circuit which selects an optimum receiving signal in a diversity receiver and which corrects receiving signal levels in such a manner that characteristics in measuring systems for a plurality of receiving signal levels can be regarded as homogeneous.  The circuit includes memory means which stores correction data and which responds to receiving signal levels to provide corrected signals conforming to a preselected characteristic.
Patent CA-2007907-A1 (CA)
Title: Carbon molecular sieves for purification of chlorofluorocarbons
Inventor: CHANG CHIN-HSIUNG
IPC: B01J20/20
Filed: 1990-01-17
Abstract: CARBON MOLECULAR SIEVES FOR PURIFICATION OF CHLOROFLUOROCARBONS                  ABSTRACT          Chlorofluorocarbons are purified by removing hydrofluoric and hydrochloric acids with a carbon molecular sieve having an averaye pore size of about 3.5 Angstroms with no more than about 5% of the pores having a size less than 3.2 Angstroms and no more than  about  5%  of  the  pores  having  a  size  greater  than  4.2 Angstroms.
Patent CA-2008494-A1 (CA)
Title: Automated capillary injector
Inventor: BUROLLA VICTOR P
IPC: G01N27/447
Filed: 1990-01-24
Abstract: AUTOMATED CAPILLARY INJECTOR               ABSTRACT OF THE DISCLOSURE A pressure integrated apparatus and process for the measured injection of sample into a capillary for electrophoresis is disclosed.  Preferably the cap-illary is mounted in a serpentine path to a cartridge body having a bottom.  The capillary, previously filled with electrolyte depends a distance below the bottom of the cartridge and has its periphery sealed to the car-tridge.  Typically, the cartridge is registered at the depending capillary to a vial of sample.  The vial of sample is moved into substantial gas tight relation with the cartridge so that the depending capillary is below the surface of liquid within the sample vial. The vial is then communicated to a source of substan-tially constant fluid pressure in the order of 1 lb./inch2. At the same time, a pressure gauge monitors the pressure of the vial and outputs a signal to integration apparatus such as a microprocessor.  By time integration of the area under a pressure curve, precise monitoring of the amount of fluid introduced into a capillary occurs. Assuming a total capillary capacity of several micro-liters, injections of sample in the order of 5 nano-liters with an accuracy of plus or minus 2% is possible.          In one embodiment, a reusable vial cap is provided with four resiliently deflectable flaps sur-rounded by an integral O-ring sealing region.  The cap can cooperate with downwardly dependent fingers on a lever arm to make an opening for insertion of a capillary and electrode.
Patent CA-2008997-A1 (CA)
Title: Optical recording media
Inventor: KUROIWA MITSUYUKI
IPC: G11B7/2472
Filed: 1990-01-31
Abstract: ABSTRACT    The optical recording media disclosed therein comprise an optical recording layer containing a phthalocyanine or a naphthocyanine dye or a mixture thereof and a layer for inhibiting the deformation of said optical recording layer in this order provided on a transparent substrate.  Reading to the optical recording media of the present invention can be repeatedly made with a stable signal intensity even when recording laser power is low.
Patent CA-2011345-A1 (CA)
Inventor: JARDINE ROBERT W
IPC: F16L23/04
Filed: 1990-03-02
Abstract: A device for jointing or closing pipe ends and comprising a single or double-ended rigid or semi-rigid tubular body (10) adapted to retain and protect a single or double-ended elastomeric sleeve (12) with a resilient annular collar (13) protruding from the body at the or each end.  The sleeve (12) surrounds the pipe to be joined or closed, and a clamping ring consisting of a pair of semi-circular segments (14) is closed around the collar (13) with bolts (15) and diametrically opposed wedge-like members (18) which are in sliding engagement with the internal surfaces of the clamping ring segments (14) thus to be forced inwardly together with the latter when the bolts (15) are tightened.  This ensures a substantially unform radial compression of the collar (13) around the pipe wall.
Patent CA-2018784-A1 (CA)
Inventor: SARGENT CHARLES L
IPC: B60R15/04
Filed: 1990-06-12
Abstract: A universal recreational vehicle toilet system with a  removable waste holding tank  is provided  to  enable  the recreational vehicle manufacturer to have wide latitude in the positioning of the toilet within a recreational vehicle.  The toilet system includes an upper section containing the toilet bowl and a lower section forming a base upon which the bowl section is supported in spaced relation above the recreational vehicle floor.  A holding tank is partially or fully inserted in  the  base  section  and  coupled  to  the  toilet  bowl  for receiving waste  therefrom.   The holding  tank  is  removable through an opening in the sidewall of the recreational vehicle for disposal of waste.  The upper section and the base section of the universal  toilet system are configured so that the upper section can be mounted on the base section at any of several  angles  relative to the base section providing the recreational vehicle manufacturer the ability to place the toilet in a recreational vehicle at several locations without need  for a separate  toilet  system  for each  location.   To further  provide  flexibility,  the  toilet  is  flushed  by  a control that can be mounted to a wall in the recreational vehicle remotely from bowl and base sections and connected to the bowl and base sections by an electrical wire and a cable respectively.
Patent CA-2020442-A1 (CA)
Title: Nail Drying Apparatus and Method Therefor
Inventor: NAFZIGER MICHAEL D
IPC: B05D3/06
Filed: 1990-07-04
Abstract: A nail drying apparatus and method is provided herein by which any commercially-available nail polish of any colour can be dried after being applied to a person's finger nails or toe nails.   The apparatus  includes a housing member of ovate cross-section having a bottom port-ion and a top portion, the bottom portion being larger in width than the top portion.  The apparatus has a length which is of sufficient size to permit a user to grip the bottom portion of the housing member in one hand.  A hori-zontally-extending opening is located in the top portion of the apparatus, the opening having a width and length of sufficient size to permit the user to insert at least four fingers of one hand into the opening while holding the bottom portion of the housing member in one hand.  A device is located within the opening for emitting ultraviolet radiation simultaneously to shine on at least four of the fingernails of the user's hand.  In this manner, a photo-reactive coating which has been applied over a nail polish is  cured  by  sufficient  exposure  to  the  ultraviolet radiation.
Patent CA-2020656-A1 (CA)
Title: Plasmids, their preparation and their use in the manufacture of a plasminogen activator
Inventor: BRIGELIUS-FLOHE REGINA E
IPC: C12N9/72
Filed: 1990-07-06
Abstract: Plasmids containing synthetic DNA sequences are described which are suitable for the expression of the intermediate protein of the rscu-PA (i.e. the unglycosylated protein moiety of the single chain prourokinase) in Enterobacteriaceae, especially in E.coli, with expression rates far higher than those obtainable according to the state of the art. The plasmids according to the invention are characterized in that their operons include a regulatable, optionally synthetic promotor, a Shine-Dalgarno sequence, a start codon, a synthetic structural gene and downstream of the structural gene 1 to 2 terminators. The preparation of the plasmids as well as that of the synthetic DNA-sequences starting from commercially available plasmids etc. is described. The intermediate protein expressed in high yields by using the plasmids for transforming suitable hosts may be refolded in a manner known per se to the therapeutically (as plasminogen activator) useful rscu-PA which also optionally may serve as a starting material for obtaining the two chain unglycosylated urokinase protein (rtcu-PA) on a technical scale by splitting the single chain product in a manner known per se.
Patent CA-2024727-A1 (CA)
Title: 2-ethoxymethyl-5-hydroxy--pyrone and melanogenesis-inhibiting endermic preparation containing the same compound as active ingredient
Inventor: YAMAMOTO SHINJI
IPC: A61K8/00
Filed: 1990-09-06
Abstract: ABSTRACT OF THE DISCLOSURE       Disclosed  are  2-ethoxymethyl-5-hydroxy-.gamma.-pyrone and an melanogenesis-inhibiting endermic preparation for external  application  containing  the  compound  as  an active ingredient.   The endermic preparation is almost non-toxic  and  has  an  extremely  high  melanogenesis-inhibiting activity.
Patent CA-2026191-A1 (CA)
Inventor: AIDA TAKESHI
IPC: H05K1/02
Filed: 1990-09-25
Abstract: The present invention relates to a meter device in which a casing having a front opening portion and a back opening portion is provided.  A partition wall is contained in the casing to form a front-side containing space and a back-side containing space.  An electric meter main body is fixedly contained in the front-side containing space, and a circuit board is attached to the back opening portion side of the casing.  Electronic parts are mounted to an electronic part mounting side of the circuit board which is directed toward the partition wall, whereby an electronic part mounted on the circuit board is contained in the back-side containing space.  The meter device facilitates assembling operations and electrical connecting operations.  With the electronic part containing space partitioned into a plurality of containing spaces, an electronic part which generates heat can be isolated from other electronic parts, whereby thermal interference is reduced.
Patent CA-2026472-A1 (CA)
IPC: C08L9/02
Filed: 1990-09-28
Abstract: A vulcanizable semiconductive insulation shielding composition consisting essentially of, based on the total weight of said composition, (A) about 40 to 65 weight percent of an ethylene-vinyl acetate copolymer containing from about 27 to 45 weight percent of vinyl acetate based on the total weight of said copolymer, (B) about 5 to about 30 weight percent of a acrylonitrile butadiene copolymer containing from about 25 to about 55 percent by weight of acrylonitrile based on the total weight of said copolymer, (C) about 25 to about 45 weight percent of carbon black having a surface area of 30 to 60 meters 2 per gram and (D) about 0.2 to about 5 weight percent of an organic peroxide crosslinking agent. The composition or the crosslinked product of the composition directly bonded to a polyolefin substrate is also included.
Patent CA-2026478-A1 (CA)
Title: Silacyclobutane functional polymers and their production
Inventor: BANEY RONALD H
IPC: C08K5/00
Filed: 1990-09-28
Abstract: SILACYCLOBUTANE FUNCTIONAL POLYMERS AND THEIR PRODUCTION                         ABSTRACT           The silacyclobutane functional polydiorganosiloxane copolymers of the invention have the following structure:                   wherein M is selected from         and         wherein Ra, Rb, Rc, Rd, Re and Rf are independently monovalent radicals; m, n, p and x are integers of from 0 or more, with the proviso that there is at least one silacyclo-butane group in the copolymer.  The copolymer can be made by reacting a hydroxyl endblocked polydiorganosiloxane with either a difunctional chain extending silacyclobutane or with a monofunctional chain stopper or a mixture of chain extender and chain stopper.  The copolymer can be made into curable compositions by use of suitable catalyst.
Patent CA-2027474-A1 (CA)
Title: Solid products decontamination apparatus and process
Inventor: FRAYSSE GUY
IPC: B09B3/00
Filed: 1990-10-12
Abstract: Process for decontaminating a solid product polluted by a contaminant which can be vaporised by heating under vacuum and devices making use of such a process in which the product is introduced into an enclosure (3, 37, 72) for heating and application of vacuum, the said product is heated substantially in bulk in a range of specified temperatures, while a sufficient vacuum is produced in the said enclosure to lower the pressure of the enclosure below the threshold of vaporisation of the contaminant in the said range of temperatures, the said temperature and reduced pressure conditions are maintained in the enclosure for a sufficient time to vaporise substantially all of the contaminant present in the said product, the vaporised contaminant is extracted by exhausting the atmosphere from the enclosure and the said exhausted contaminant is condensed. 
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Patent CA-2029878-A1 (CA)
Inventor: ASANUMA TADASHI
IPC: C08F6/02
Filed: 1990-04-10
Abstract: Disclosed herein is a process for preparing a syndiotactic polypropylene comprising washing with a hydrocarbon solvent a polymer obtained by polymerizing propylene in the presence of a catalyst comprising a transition metal compound having an asymmetric ligand.          When the slurry of the polymer obtained by the polymerization is treated with a  .beta.-dicarboxy compound and an alcohol or with an alcohol containing hydrochloric acid gas under non-aqueous conditions prior to the washing with a hydrocarbon solvent so that the residue of the catalyst used in the polymerization reaction may be rendered soluble in the hydrocarbon solvent, the properties of the resulting syndiotactic polypropylene are improved greatly.
Patent CA-2030301-A1 (CA)
Inventor: DEHAESE BRIGITTE
IPC: A61G9/00
Filed: 1990-11-20
Abstract: PROTECTION ARTICLE FOR DEJECTA RECEIVERS            Abstract of the Disclosure A  protective  cover  for  bedpans  or  the  like comprises two sheets of paper, each waterproofed on one face with polyethylene.   The sheets are superimposed one upon the other, waterproofed sides together, and the edges of the sheets are bonded together along a major portion of their perimeter.  The unbonded portion of the perimeter of the sheets is of a size sufficient to extend over the edges surrounding the opening of a bedpan or the like.  Elasticized thread is stitched to the edges of the unbonded portion of the perimeter for fitting and securing the cover over the external walls of  the bedpan and temporarily  securing the  sheets against motion with respect to the bedpan.  A band of pressure sensitive adhesive is affixed to at least one sheet adjacent to the unbonded portion of the perimeter of the sheet for sealing the sheets together after use, thereby confining and retaining the dejecta within the protective cover.
Patent CA-2032353-A1 (CA)
Title: Reusable mechanical connector for optical fibers
Inventor: MEIS MICHAEL A
IPC: G02B6/36
Filed: 1990-12-14
Abstract: Abstract of the Disclosure A reusable mechanical connector for an optical fiber has an elongated mount of substantially uniform elliptical cross section and a straight longitudinal groove extending the full length of the mount.  The groove has a uniformly shallow central portion and uniformly deep outer portions.  A deformable housing surrounds the mount. When the housing is undeformed while bare ends of two abutting optical fibers are nesting in said shallow central portion and adjacent buffers of the fibers are nesting in said deep portions, the housing pinches both the bare ends and buffers against the mount simultaneously, thus optically interconnecting the fibers. The fibers can be released simply by squeezing the deformable housing.
Patent CA-2033772-A1 (CA)
Inventor: MONTGOMERY FREDERICK J
IPC: A61M16/14
Filed: 1991-01-08
Abstract: An anaesthetic vaporiser 1 of the by-pass type includes a vaporising chamber 12 containing an anaesthetic agent which at normal atmospheric pressure has a boiling point of approximately 25°C.  The vaporising chamber 12 is surrounded by thermal insulation 18 to prevent uncontrolled boiling of the anaesthetic agent.
Patent CA-2034180-A1 (CA)
Title: Electromechanical motor reversing
Inventor: DUVE JOHN P
IPC: H02P23/00
Filed: 1991-01-15
Abstract: ABSTRACT OF THE DISCLOSURE     An electromechanical A.C. motor reverser having a timed cam-driven SPDT switch with the side terminals thereof connected to separate motor stator coils.  The movement of the transfer blade between contacts to break one motor coil circuit and complete the other reversing motor coil circuit is delayed sufficiently by the cam to permit the motor rotor speed to decay enough to enable reversal of rotation upon completion of the reversing coil circuit.  The minimum contact transfer time is set at the period corresponding to two cycles of power line current.
Patent CA-2035855-A1 (CA)
Title: Anchor retrieving device
Inventor: KOBAYASHI SATORU
IPC: B63B21/24
Filed: 1991-02-06
Abstract: ABSTRACT OF THE DISCLOSURE         An improved anchor retrieving device adapted to be attached at an intermediate position of a main anchoring line.  The device comprises a lock assembly comprising gripper means detachably mounted on an intermediate position of the main anchoring line, and a lock lever having a lower part swingingly supported by the lower portion of the gripper means and an upper part releaseably held by the gripper means;  a connection line for connecting the lock lever to one end of the shank opposite to the crown end of the anchor;  and a weight for impinging the lock assembly to change the same from the locking condition to the unlocking condition.  The connection line has a connection line retainer for fixing the connection line to the lock lever in the locking condition, and is released from the lock lever when the lock assembly is impinged by the weight.  The restrainer means is a lope clip fixed to the main anchoring line to engage the bottom of the gripper means in one embodiment, or clamping means for clamping the gripper means and simultaneously for fixing the gripper means in situ.
Patent CA-2037091-A1 (CA)
Inventor: HARANDI MOHSEN N
IPC: C07C41/06
Filed: 1991-02-26
Abstract: Crude aqueous ethanol feedstock is reacted with iso-olefinic hydrocarbons to produce C6+ ethyl t-alkyl ethers by distilling the feedstock, contacting ethanol rich distillate overhead containing a minor amount of water with a liquid hydrocarbon extractant rich in C4+ isoalkene under liquid extraction conditions, recovering an aqueous phase containing water introduced from the overhead, recovering an organic extract phase comprising the hydrocarbon extractant and a major amount of ethanol introduced in the feedstock, and reacting the extracted ethanol and C4+ isoalkene in contact with an acid etherification catalyst under catalytic reaction conditions to produce ether product.
Patent CA-2040886-A1 (CA)
Title: Process for preparing optically active isomers of 6-substituted purinyl piperazine derivatives
Inventor: BARTON DONALD L
IPC: C07B53/00
Filed: 1991-04-19
Abstract: ABSTRACT OF THE DISCLOSURE    A process for synthesizing optically active isomers of  6-substituted  purinyl  piperazine  derivatives  is described.  The optically active isomers prepared by the process   are  useful  as  cardiotonic   agents   and antiarrhythmic agents.