baber/WOPTO huggingface dataset:
Patent CA-2024030-A1 (CA)
Title: Oligodendrocyte cytotoxic factor
Inventor: SCHWARTZ MICHAL
IPC: C07K16/00
Filed: 1990-08-27
Abstract: ABSTRACT            A novel oligodendrocyte cytotoxic factor, salts,  precursors, fragments  and homologs thereof and functional derivatives of said factor or of its fragments or homologs, are  selectively toxic  to  the   oligodendrocyte   lineage.    Pharmaceutical compositions  comprising  them  are  useful   for   inducing regeneration  of injured nerves of the central nervous system in mammals.
Patent CA-2026596-A1 (CA)
IPC: H04W36/12
Filed: 1990-10-01
Abstract: To transfer the handling of an active connection being handled by a first switching exchange connected to the exchange equipped for fixed telecommunication to a base station associated with another switching exchange, a connection is made between the first and the other switching exchange and a connection is made between said other switching exchange and the base station associated therewith, which base station reserves a radio channel for the mobile terminal, after which the communication with the mobile terminal is taken over by said base station; a connection is also made between the exchange equipped for fixed telecommunication and the other switching exchange and, after the connection to the mobile terminal has been taken over by the base station, the entire handling of the connection is taken over by the other switching exchange and the connection between the two switching exchanges, and between the first switching exchange, and the exchange equipped for fixed telecommunication, is disconnected.
Patent CA-2028352-A1 (CA)
Title: High temperature sensor
Inventor: LEE KYUNG-SHIK
IPC: G01J5/60
Filed: 1990-10-23
Abstract: ABSTRACT      Apparatus and a method of use thereof for measuring the temperature of a high temperature object or environment are disclosed.  The apparatus includes a black body or gray body detector which detects radiation characteristic of that temperature and emits characteristic radiation in response thereto, a hollow light guide and transmitter which transmits the emitted radiation to an optics array which focuses the light onto a signal generator which, from a previously correlated property of the light such as wavelength distribution or intensity converts that light into a signal characteristic of the detected property, and a signal processor in which the signals are analyzed to determine and display the observed temperature of the object or environment in real time.  Temperatures of from 500°C-3500°C (930°F-6330°F) may be measured.  Utility is in the field of temperature measurements of high temperature materials, such as molten metals,  and devices, such as gas turbine blades, especially under dynamic operating conditions.
Patent CA-2029219-A1 (CA)
Title: Methods and reagents to detect and characterize norwalk and related viruses
Inventor: ESTES MARY K
IPC: C07K14/08
Filed: 1990-11-02
Abstract: ABSTRACT Double-stranded cDNA was synthesized from nucleic acid extracted from Norwalk virus purified from stool specimens of volunteers.  One clone was isolated from a cDNA library constructed in a pUC-13 vector after amplification of the cDNA.  The specificity of this cDNA (pUCNV-953) was shown by hybridization assays.  The cDNA reacted with post- (but not pre-) infection stool samples from Norwalk volunteers and with highly purified Norwalk virus, but not with other common enteric viruses such as hepatitis A virus and rotavirus.  Finally, the probe detected virus in the same fractions of CsCl gradients in which viral antigen was detected using a specific Norwalk virus radioimmunoassay, and particles were detected by immune electron microscopy.  Single-stranded RNA probes derived from the DNA clone after subcloning into an in vitro transcription vector were also used to show that the Norwalk virus contains a ssRNA genome of about 8 kb in size.  The original clone was also used to detect additional cDNAs which represent at least 7kb of nucleic acid of the Norwalk genome.  The availability of a Norwalk-specific cDNA and the first partial genome sequence information allow rapid cloning of the entire genome and of establishment of sensitive diagnostic assays.  Such assays can be based on detection of Norwalk virus nucleic acid or Norwalk viral antigen using polyclonal or monoclonal antibodies to proteins expressed from the cDNA or to synthetic peptides made based on the knowledge of the genome sequence.  Vaccines made by recombinant DNA technology are now feasible.
Patent CA-2029437-A1 (CA)
Inventor: OOE TAKASHI
IPC: B01D53/32
Filed: 1990-11-07
Abstract: Abstract The present invention is directed to a waste gas treating apparatus including a discharge tube comprising a tubular container having a gas introduction opening and a gas leading opening and at least one pair of anodes and cathodes placed within the container, a dc or ac power supply connected to electrodes, and a gas flow passage formed in the discharge tube wherein at least a pair of anodes is provided opposite to each other in the flow passage, at least a pair of cathodes is provided opposite to the anodes in a direction nearly at right angles to the anodes without contacting the anodes in a space including the pair of anodes; a set of electrodes is comprised of said pair of anodes and said pair of cathodes; a part or the whole of said anodes and said cathodes are comprised of a plurality of plates or pillars and they are electro-conductively connected integrally and a device for forming a magnetic field application device forming a dc or ac magnetic field in the opposing direction of the cathodes is fixed to the discharge tube.  The waste gas treating apparatus of the present invention is suitable for treating reactive gases discharged from semi-conductor production facilities.
Patent CA-2030006-A1 (CA)
Title: Anhydrous pharmaceutical formulations and dosage forms for the rectal administration of calcitonin
Inventor: LATTANZI FILIPPO
IPC: A61K47/42
Filed: 1990-11-14
Abstract: ANHYDROUS  PHARMACEUTICAL  FORMULATIONS  AND DOSAGE  FORMS  FOR  THE          RECTAL ADMINISTRATION OF CALCITONIN          ABSTRACT OF THE DISCLOSURE          New  formulations  are described containing a calcitonin  as  active principle and suitable for rectal administration in the form of soft gelatin capsules, in which the active principle, possibly mixed with a  stabilizer, is  dispersed in a liquid vehicle  consisting  of  a polyethyleneglycol or a mixture of polyethyleneglycols of  different molecular weight which has the consistency of a homogeneous fluid at ambient  temperature, and possibly a C2-C6 alcohol with at  least  2 hydroxyl groups, and present in a weight quantity of less than 15%.          Said formulations, which contain no absorption adjuvant, enable  the same  pattern  of  hematic levels to be obtained  as  obtainable  by conventional intramuscular administration, for equal unit dosages.          Moreover,  the  absence  of water  makes  said  formulations  highly stable.
Patent CA-2031655-A1 (CA)
Title: Process for separating and recovering lead, rubber and copper wires from waste cables
Inventor: MARABINI ANNA
IPC: B03B9/06
Filed: 1990-12-06
Abstract: PROCESS FOR SEPARATING AND RECOVERING LEAD,  RUBBER AND COPPER WIRES          FROM WASTE CABLES.          ABSTRACT OF THE DISCLOSURE  The  present  invention  relates  to a process  for  separating  and recovering copper wires, lead granules and rubber grains coming from waste cables,  through washing,  gravimetric  separation,  screening operations and methods for flattening the lead grains.
Patent CA-2031876-A1 (CA)
Title: Electronic control system for an oven
Inventor: BRINKRUFF DAVID A
IPC: F24C7/08
Filed: 1990-12-10
Abstract: ABSTRACT OF THE DISCLOSURE   An electronic oven temperature regulator employing a comparator (UlB) to control energization of a relay (56,58) for cycling the oven heating unit (gas or electric) in response to comparison of an oven temperature sensor (23) output and a user selected reference temperature about which regulation is desired.  A reversible polarity voltage regulator (R5, CR6) provides feedback from the comparator output to the input to provide a positive and negative hysteresis dead band about the selected regulation temperature for minimizing cycling or "hunting" of the heating unit.  A fault comparator (6A) tracks the selected reference temperature to disable the heating element relay in the event of a short in the temperature sensor.
Patent CA-2035584-A1 (CA)
Title: Infusion bag
Inventor: UFERMANN RUDIGER
IPC: B65D33/01
Filed: 1991-02-01
Abstract: ABSTRACT            The present invention relates to a bag (1) with a collapsible chamber (2) that is used to hold a liquid, and with a non-collapsible outlet tube (3) that is connected with the chamber (2) and a breather device (4) that connects the chamber with the atmosphere.  In order to be able to determine the amount of liquid remaining in the bag, a scale (5) is provided on one transparent side of the bag (1).            (Figure 1)
Patent CA-2040367-A1 (CA)
Inventor: REED LARRY E
IPC: C10G9/16
Filed: 1991-04-12
Abstract: The formation of carbon on metals exposed to hydrocarbons in a thermal cracking process is reduced by contacting these metals with an antifoulant selected from the group consisting of a combination of titanium and tin and a combination of titanium and antimony.
Patent CA-2040885-A1 (CA)
Title: Substituted benzhydryl 2-hydroxypropyl piperazine derivatives
Inventor: HAJOS ZOLTAN G
IPC: A61P9/04
Filed: 1991-04-19
Abstract: ABSTRACT OF THE DISCLOSURE      Substituted benzhydryl 2-hydroxypropyl piperazine derivatives and methods of synthesis of the derivatives are  described.     The  substituted  benzhydryl   2-hydroxypropyl piperazine derivatives are useful as cardiotonic agents.
Patent CA-2042277-A1 (CA)
Inventor: RIBNER DAVID B
IPC: H03F3/08
Filed: 1991-05-09
Abstract: NOISE CANCELING PHOTODETECTOR PREAMPLIFIER USEFUL FOR COMPUTERIZED TOMOGRAPHY                  ABSTRACT OF THE DISCLOSURE      A  preamplifier  interfaces  low  level  current-mode signals,  such as  from a photodetector in a computerized tomography system,  to corresponding voltage-mode signals, with  a  dynamic  range  on  the  order  of  120 dB.  The preamplifier can be implemented in CMOS technology to allow for complete  integration of the  computerized tomography interface function,  including analog-to-digital conversion, of several channels in a single integrated circuit.  The CMOS circuit accepts a current signal at its input and,  after integration of the signal, produces a voltage output wherein the low frequency noise that is normally encountered with MOS transistors is cancelled through the use of correlated-double sampling.   The circuit limits high frequency noise through use of low-pass filtering.
Patent CA-2047193-A1 (CA)
Title: Silicon heating element
Inventor: ZORICIC BOZIDAR
IPC: H05B3/14
Filed: 1990-12-21
Abstract: A silicon heating element comprises an electrically isolated support (A) of high thermal conductivity - preferably made of beryllium oxide or of aluminium nitride - bearing a silicon layer (B) and electric contacts (C). The silicon layer (B) consists of polycrystalline or amorphus silicon which is doped by semiconducting dopants of the p- or n-type, preferably in a concentration higher than 1018/ccm. The contacts are highly temperature resistant and alloyed to the silicon layer (B). Alternatively the contacts are composed of a contact layer (C') of refractory metal being in contact with the electrically isolated support (A) and of a second temperature resistant material (C'') alloyed onto the contact layer (C'). The silicon heating element is produced by laying a layer (B) of polycristalline or amorphous silicon onto an electrically isolated support (A) of high thermal conductivity. It is deposited as a thin layer (B) and is doped with semiconducting dopants of the p- or n-type either during or after this deposition.  Electric contacts (C) are then connected to the silicon layer (B). The silicon heating element can also be used as a temperature sensor.
Patent CA-2048097-A1 (CA)
Inventor: BESCH GORDON O
IPC: C22C38/00
Filed: 1991-07-29
Abstract: A high-strength, damage-resistant rail characterized by essentially consists of 0.60 to 0.85 wt% of C, 0.1 to 1.0 wt% of Si, 0.5 to 1.5 wt% of Mn, not more than 0.035 wt% of P, not more than 0.040 wt% of S, and not more than 0.05 wt% of A~, a balance being Fe and indispensable impurity.  The rail comprises corner and head side portions having a Brinell hardness HB of 341 to 405 and a head top portion having a hardness which is not more than 0.9 of the Brinell hardness of the corner and head side portions.
Patent CA-2048236-A1 (CA)
Inventor: O'DONNELL MARGARET
IPC: A61K31/44
Filed: 1991-07-31
Abstract: ABSTRACT   The invention relates to compositions comprising combinations of a PAF antagonist and a LTD4 antagonist which combinations synergistically provide protection against allergic reactions such as antigen-induced death in mammals. In another aspect, the invention relates to the use of the referred to combinations in the treatment of allergic reactions.
Patent CA-2048550-A1 (CA)
Title: Thin gas barrier films and rapid deposition method therefor
Inventor: FELTS JOHN T
IPC: B32B9/00
Filed: 1991-08-07
Abstract: ABSTRACT           Films are coated on substrates, useful for applications such as packaging, having a substantially continuous  inorganic matrix  in which  organosilicon moieties are discontinuously dispersed.  The inorganic matrix is formed by evaporating an inorganic source within a evacuated chamber while at the same time flowing  vaporized  organosilicon  into  the chamber adjacent to an electrically isolated substrate.
Patent CA-2049353-A1 (CA)
Title: Metal/superconducting oxide composites and preparation thereof
Inventor: WIJEYESEKERA SUNIL D
IPC: C01G29/00
Filed: 1991-01-04
Abstract: Subject a heated, non-molten, intimate admixture of a base metal and a superconducting oxide material to pressure sufficient to form a densified article. The densified article is either superconducting as formed or capable of being rendered superconducting by annealing in the presence of oxygen. Depending upon the choice of materials the densified article is stable at temperatures up to 1000 ·C.
Patent CA-2050882-A1 (CA)
Title: Transparent thermoplastic moulding material consisting of esters of 2,3-difluoracrylic acid
Inventor: GROH WERNER
IPC: G09B1/04
Filed: 1990-04-12
Abstract: Abstract of the Disclosure Transparent thermoplastic molding compound made of 2,3-difluoroacrylic acid esters A thermoplastic molding compound consisting of units of 2,3-difluoroacrylic  acid  esters  or  their  deuterated derivatives, or containing units of these esters,  is distinguished by a high glass transition temperature and high transparency.  It is therefore suitable for the manufacture of beam waveguides  for long transmission distances and high continuous use temperatures.
Patent CA-2050900-A1 (CA)
Title: Portable room divider
Inventor: MAAS JOHN C
IPC: E04B2/74
Filed: 1990-04-10
Abstract: A combination cabinet-room divider (10) includes at least one storage compartment (18) which contains a plurality of folded wall panels (12). The panels can be removed and unfolded to form a wall that is anchored at one end to the cabinet. In a preferred embodiment, the cabinet-room divider has two storage compartments and two sets of wall panels.
Patent CA-2051428-A1 (CA)
Title: Exercise and training apparatus
Inventor: FARENHOLTZ DOUGLAS W
IPC: A63B23/12
Filed: 1990-04-20
Abstract: A training and exercise device for applying a force against a resisting force, such as a weight stack (12), includes an upstanding frame (20), a rotatable arm (16) supported by the frame at a first end for rotation about the frame in a horizontal plane and a force receiving device (18) communicating with the arm for receiving force applied by a user. The force receiving device is longitudinally slidable along the arm to cause force to be applied against the resisting force when the force receiving device is pushed horizontally along the arms towards the frame. A cable (14) connects the force receiving device to the resisting force and is attached at a first end to the resisting force. A grasping device (104) is attached to the second end of the cable. The force receiving device includes a pair of handles which may be rotated about an axis perpendicular to the longitudinal horizontal axis of the arm.
Patent CA-2054526-A1 (CA)
Title: Controlled release formulations
Inventor: COLEGROVE GEORGE T
IPC: A61K31/52
Filed: 1991-10-30
Abstract: TITLE OF THE INVENTION          Controlled Release Formulations ABSTRACT OF THE INVENTION         Antacid compound salts of sodium and magnesium ions, e.g. magnesium oxide, magnesium hydroxide, magnesium trisilicate, magnesium phosphate, and trisodium phosphate, are combined with water soluble alginates, e.g. sodium, potassium and magnesium alginate in a controlled release tablet containing an active ingredient, to produce a tablet having an improved hydration environment for the alginate.  The improved hydration environment allows the alginate particles to swell in gastric fluid and produce a thicker and more uniform layer through which the active ingredient must diffuse, thereby decreasing the rate of release.
Patent CA-2055457-A1 (CA)
Title: High definition, three-dimensional television
Inventor: WINNEK DOUGLAS F
IPC: H04N13/00
Filed: 1990-05-11
Abstract: A camera having a main lens system (2) designed for normal operation at infinity and well corrected for a flat field. A stationary aperture member having a horizontal slit therein passes light through the main lens system toward and through a lenticular screen (9) which lies ahead of and in close proximity to the sensor plane of a charge controlled device (CCD) chip (10). The lenticular screen lies flat side toward the imaging plane of the CCD chip and produces a parallax panoramagram of the unidirectional type where only horizontal parallax information is preserved. A portrait lens (6) can be used in front of the main lens system to allow the main lens system to operate at its designed infinity setting. A  field lens (7) can be used between the main lens system and the lenticular screen to normalize the light rays from the main lens before they reach the lenticular screen.
Patent CA-2057094-A1 (CA)
Title: Spiral shrink belt and perforated roll
Inventor: MAGUIRE MICHAEL
IPC: D21F1/60
Filed: 1991-12-05
Abstract: ABSTRACT OF THE DISCLOSURE        An open ended, flat spiral belt is joined at its ends on a roll to form an endless cover.  A spiral belt is fitted with a zipper assist in the seam area to facilitate the joining of the spiral belt on the roll. One part of the zipper assist is removably attached to one end of the spiral belt with the other part of the zipper assist being removably attached to the other end of the spiral belt.  When the two sections of the zipper assist are zipped together, they pull the two ends of the spiral belt together, allowing for interdigitation of the spiral loops of the spiral belt, which then forms a channel for the introduction of a seam wire.  Once the spiral belt is seamed on the roll, the zipper assist is removed and the roll is set in slow motion at about ten revolutions per minute.  The entire fabric is subjected to application of heat from a hot air gun to set the spiral belt, now in the form of a spiral shrink sleeve.
Patent CA-2057409-A1 (CA)
Title: Anti-plugging adjustable orifice for gas sparged hydrocyclone
Inventor: GREENWOOD BRIAN F
IPC: B03D1/14
Filed: 1991-12-11
Abstract: ABSTRACT      In a hydrocyclone, particularly for deinking of paper pulp, a movable generally cylindrical plug is utilized to define an annular space near the accepts withdrawal conduit to effect release of obstructions should the annular space become clogged.  The plug is biased by a spring, and moved against the spring pressure to enlarge the annular space automatically in response to a build up of back pressure.  The plug also may be moved manually from exteriorly of the hydrocyclone housing, or may be operated by fluidic elements on a periodic basis to clean the annular space whether or not there has been a build up of back pressure.  The hydrocyclone preferably is a gas sparged hydrocyclone, and recycled paper -- with print on it -- having a consistency of at least about 2% is treated to effect deinking.
Patent CA-2058786-A1 (CA)
IPC: B01F15/00
Filed: 1992-01-06
Abstract: CARBONATED BEVERAGE DISPENSING APPARATUS          Abstract of the Disclosure In a carbonated beverage dispensing apparatus including a dispensing valve, carbon dioxide gas is introduced into a liquid to be dispensed through the dispensing valve, and a temperature sensor is arranged to sense the temperature of the liquid, either in a carbonation tank or in the path through which the liquid is fed to the carbonation tank. A control, responsive to the temperature sensor,controls a valve which regulates the pressure at which carbon dioxide is introduced into the liquid. The carbon dioxide pressure increases with increasing liquid temperature, so that the carbonation level in the liquid dispensed through the dispensing valve is maintained at a substantially constantlevel. Both mechanical and electronic controls are disclosed.
Patent CA-2060520-A1 (CA)
Title: Metal matrix composites
Inventor: STORER JONATHAN G
IPC: D06M11/83
Filed: 1992-02-03
Abstract: Abstract of the Disclosure A fiber reinforced metal matrix composite is provided comprising consolidated coated fibers, said fibers comprising a ceramic, carbon or metal fiber having a coating thereon of a metal matrix material, the coating being substantially uniform and having a morphology which is fine grained and substantially void free and said composite being substantially void free.  A barrier/interface layer made be provided between the fiber and the metal matrix.  A process for forming the metal matrix composite is also provided as well as fibers which are coated with metal matrix material.
Patent CA-2067069-A1 (CA)
Title: Novel diketopyrrolopyrroles
Inventor: WOODEN GARY
IPC: C08K5/3445
Filed: 1992-04-24
Abstract: 1,4-Diketopyrrolo[3,4-c]pyrroles of formula (see formula I) wherein R1, R2, R3 and R4 are each independently of one another hydrogen, Cl, Br, CH3, OCH3, CN or phenyl; and at least one of the substituents R1, R2, R3 and R4 is a group -O-(CH2)n X of -O(CH2CH2O)p CH2CH2X wherein n is an integer from 2 to 12, and p is an integer from 1 to 3, X is a heterocyclic radical selected from the group consisting of imidazolyl, pyrazolyl, triazolyl, piperazinyl, pyridinyl, pyrrolyl, thiazolyl, oxazolyl, benzoxazolyl, indolyl, benzthiazolyl, benzimidazolyl, benzotriazolyl, morpholinyl, piperidinyl and pyrrolidinyl, which radical is unsubstituted or substituted by one or two methyl groups, or is a group or -N[(CH2)n-NR5R6]2, wherein R5 and R6 are each independently of the other hydrogen, C1-C6alkyl or C5-C6cycloalkyl.        Pigment compositions comprising a minor amount of said compounds and diketopyrrolopyrrole pigments have excellent rheological and colouristic properties, especially in paint systems and in printing inks.