baber/WOPTO huggingface dataset:
Patent CA-2002058-A1 (CA)
Title: Asphalt road resurfacing machine
Inventor: LEE CHIN-PO
IPC: E01C19/05
Filed: 1989-11-02
Abstract: ASPHALT ROAD RESURFACING MACHINE            ABSTRACT          An  asphalt  road resurfacing machine  includes  a heater  to  soften asphalt pavement by heat, a  plurality  of scraper  assemblies  to  excavate  asphalt  pavement,   knock excavated  asphalt  pavement  to pieces and  mix  the  pieces evenly,  a  shaving device to shave the mixed pieces  on  the road, and a roller to crush and smooth the excavated  asphalt pavement to a renovated condition.
Patent CA-2007997-A1 (CA)
Title: Solid electrolyte capacitor and manufacturing method therefor
Inventor: NIWA SHINICHI
IPC: H01G9/02
Filed: 1990-01-17
Abstract: In a solid electrolyte capacitor, an improvement wherein r.he solid electrolyte is a mixture of at least two kinds of 7,7,8,8-tetracyanoquinodimethane complexes having rations different from each other which is obtained by cooling the mixture in a liquid state, the mixture being so stable to a high heat applied to the capacitor upon mounting the same on a circuit board using reflow solder. Further, a method for aging solid electrolyte capacitors is also disclosed wherein a higher aging temperature is employed.
Patent CA-2008960-A1 (CA)
Title: Method of preventing polymer scale deposition
Inventor: UENO SUSUMU
IPC: C08F2/00
Filed: 1990-01-30
Abstract: ABSTRACT OF THE DISCLOSURE        Method of preventing polymer scale deposition A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel of which the inner wall has a coating comprising a reac-tion product of a tannin and an aldehyde; a scale pre-ventive agent comprising said reaction product; and a polymerization vessel having said coating on the inner wall thereof.  Polymer scale deposition on the inner wall, etc. of the polymerization vessel can be effectively pre-vented.
Patent CA-2010009-A1 (CA)
Inventor: NAKA TAKEHIKO
IPC: A61P25/28
Filed: 1990-02-14
Abstract: Novel tricyclic fused pyrimidine derivatives of the formula (I):   (see formula I) wherein either one of R1 and R2 is hydrogen or an optionally substituted aralkyl group and the other is hydrogen, an optionally substituted aralkyl group or an aliphatic hydrocarbon group; R3 is hydrogen, an aliphatic hydrocarbon group or acyl group; and A is an optionally substituted divalent hydrocarbon chain having 2 to 4 carbon atoms and salts thereof are strong adenosine antagonists and activate cerebral functions and metabolisms, thus being useful as therapeutic or prophylactic agents for neurological or psychic changes caused by cerebral apoplexy, brain injury or cerebral atrophy.
Patent CA-2012844-A1 (CA)
Inventor: PATTAS KONSTANTIN N
IPC: F01N3/30
Filed: 1990-03-22
Abstract: ABSTRACT          A Method Of And An Apparatus For Regenerating A         Diesel Particulate Exhaust Filter A method of and an apparatus for regenerating a diesel filter (1) mounted in the exhaust pipe (3) of a diesel engine (2) are characterized in that, for initiating re-generation, the exhaust flow is throttled in the exhaust pipe (3) and/or in an exhaust feedback passage (7) by means of a control unit (10) responsive to setpoint exhaust tem-peratures measured upstream and downstream of the diesel filter (1) in the exhaust pipe (3), and that the air ratio is set to a value between 1.2 and 1.3 to inhibit regener-ation.
Patent CA-2014467-A1 (CA)
Inventor: EHRGOTT FREDERICK J
IPC: A61P19/02
Filed: 1990-04-12
Abstract: This invention relates to novel 3-substituted-2-oxindole derivatives which are inhibitors of prostaglandin H2 synthase, 5-lipoxpgenase and interleukin-1 biosynthesis. The compounds of the invention are useful as inhibitors of prostaglandin H2 synthase and interleukin-1 biosynthesis, per se, and as analgesic, antiinflammatory and antiarthritic agents in the treatment of chronic inflammatory diseases. This invention also relates to pharmaceutical compositions comprising said 3-substituted-2-oxindole derivatives; to methods of inhibiting prostaglandin H2 synthase and biosynthesis of interleukin-1 and to treating chronic inflammatory diseases in a mammal with said compounds.      Further, this invention relates to certain novel carboxylic acids useful as intermediates in the preparation of the 3-substituted-2-oxindole derivatives of this invention and to a process for the preparation of the 3-substituted-2-oxindole derivatives,   (wherein X and Y are H ar substituent, R1 is H, acyl, acylated alkyl, sulfonyl or phosphate, R2 is acyl, alkyl or phenyl, Q is heterocycle).
Patent CA-2015219-A1 (CA)
Inventor: BROMLEY KEITH G
IPC: F16B27/00
Filed: 1990-04-23
Abstract: Apparatus for setting fasteners in holes in a workpiece, and having an upper register device for engaging a workpiece on one side at a hole, a lower driver device operable to reciprocate to and fro towards and away from the workpiece on another side of the workpiece in registration with the register device and, a feed assembly to supply fasteners to the driver device, and a strip of fastener for such apparatus, and a method of setting such fasteners in a workpiece.
Patent CA-2015614-A1 (CA)
Inventor: KANI TETSUO
IPC: G11B27/28
Filed: 1990-04-27
Abstract: In the transmission of digital video data signals, for example, in a digital video tape recorder, a luminance signal and first and second chrominance signals, such as R-Y and B-Y, are individually sampled to provide respective digital luminance data signals and first and second digital chrominance data signals for forming a high-definition video picture. Time code data signals representing the corresponding frame including the sampled signals are provided as individual sets of identical signals.      The digital luminance data signals and the first and second digital chrominance data signals are divided into respective sets thereof which each consist of two successive data signals. The sets of time code data signals, digital luminance and first and second digital chrominance data signals are distributed into a plurality of transmission channels in such a manner that each set of digital luminance data signals is interleaved between sets of the first and second digital chrominance data signals, respectively, in each of the transmission channels and that each of the sets of time code data signals is likewise distributed into each of the channels. Further, one of the two successive data signals in each of the sets of digital luminance data signals, first and second digital chrominance data signals and time code data signals is inverted for obtaining the complement of the one of the two successive data signals in each set which has been inverted, thereby substantially minimizing any DC or low-frequency component in each of the transmission channels.
Patent CA-2017333-A1 (CA)
Inventor: KELLY THOMAS P
IPC: E21B23/01
Filed: 1990-05-23
Abstract: An improved subsea tubing hanger having a body with an external shoulder for landing on a seat within a subsea wellhead housing, locking means carried by the hanger to engage the housing to lack the hanger in landed position, which locking means includes a locking element, actuating means for setting the locking element and securing means for holding the actuating means in its locked position but being releasable responsive to sufficient upward force to sever the securing means. The improved running tool includes a body with hydraulic actuated latching means for engaging the tubing hanger and which main-tains its engagement with the tubing hanger even when hydraulic pressure is lost. The actuating means includes an area exposed to hydrostatic riser pressure with sufficient area to retain the actuating means in latched position even through the remainder of the actuating means is exposed to well bore hydrostatic head urging it out of latched position.
Patent CA-2023241-A1 (CA)
Title: 1,3-oxazines
Inventor: BALLHAUSE HELMUT
IPC: C07D265/06
Filed: 1990-08-14
Abstract: Abstract The compounds of general Formula   which have an antitussive activity.
Patent CA-2025807-A1 (CA)
IPC: B01J7/00
Filed: 1990-09-20
Abstract: The tightening means for safety belt restraining systems is equipped with a pyrotechnical piston/cylinder tightening drive which is inserted via fitting parts engaging the pis-ton on the one hand and the cylinder on the other hand into the force flow path of the safety belt system. The cylinder is formed in a cylinder block which is guided displaceably parallel to the axis of the cylinder on a bodywork-fixed or vehicle-seat-fixed guide member. The piston is formed at the one end of a shear-stressable piston rod and in the readi-ness position of the tightening means is inserted with the piston rod into the cylinder. At its other end the piston rod is supported at the guide part. The release is by means of a vehicle-sensitive mechanical trigger mechanism. Instead of a return blocking mechanism a return brake is provided which reduces the stress peaks in the belt system.
Patent CA-2029361-A1 (CA)
Inventor: HONDA TADATOSHI
IPC: C07D209/68
Filed: 1990-11-06
Abstract: A process is provided for the preparation of an indole from aniline or a derivative thereof and a polyhydric alcohol.  The reaction is carried out in the presence of a catalyst composed of a carrier having a specific surface area of at least 10 m/g and silver supported on the carrier.  The catalyst also contains as an additional component a specific amount of at least one element selected from Co, Fe and Ni. Deterioration in catalytic performance of the catalyst during the reaction and its regeneration are therefore minimized.
Patent CA-2031632-A1 (CA)
Title: Dropper tip for dispensing a liquid, in particular eye drops
Inventor: MAZUEL CLAUDE
IPC: B65D47/18
Filed: 1990-12-06
Abstract: A B S T R A C T           A dropper tip for dispensing a liquid, in particular eye drops.          The invention relates to a dropper tip comprising a circularly cylindrical body whose top portion has a narrow central channel flaring slightly all the way to a calibrated outlet orifice.  The outside surface (116) of the top portion (106) of the tip is terminated by a hemispherical portion (112) that is directly connected to the side surface (107) of the central channel (107) at a small diameter (D) circular outlet orifice (109), said hemispherical portion enabling a drop to be formed which is essentially constant in size for a given liquid regardless of the tilt angle of the flask when the drop is delivered.  The invention is particularly applicable to droppers for delivering eye drops.
Patent CA-2032495-A1 (CA)
Title: Process and equipment to determine disturbance variables when pouring molten metal from a container
Inventor: ARDELL RICKARD
IPC: B22D37/00
Filed: 1990-04-27
Abstract: ABSTRACT          Process and Equipment To Determine Disturbance Variables When Pouring Molten Metal From A Container In the process to determine disturbance variables when pouring molten metal from a container (10) having an outlet channel (13), vibrations generated by the melt flowing on the container (10), respectively on its connecting parts (15, 16, 18) on the lip, are measured and the deviations from a desired vibrational characteristic are determined. From these vibrations disturbance variables such as blockages in the outlet channel, vortexes and, above all, also the outflow of slag can be detected. With this process the reliability of the pouring process can be significantly increased. (Fig. 1)
Patent CA-2032953-A1 (CA)
Title: Television system
Inventor: SUGIMORI YOSHIO
IPC: H04N7/00
Filed: 1990-12-21
Abstract: A television transmitting system transmits to a television screen having aspect ratio of 3:4 by providing no-picture portions in upper and lower sections of an oblong screen having aspect ratio different from the above. Auxiliary signals are inserted in the no-picture portions and are used as the signals for improving the resolution on the receiving side.  A signal is obtained by shifting signal component, exceeding horizontal band determined by lateral width of the raster, to lower frequency and one of the following signals is transmitted at the same time: a.   a signal obtained by shifting signal component in the band higher than vertical frequency determined by the number of scanning lines on vertical direction of oblong screen in the portion of the screen where picture is not moving; and b.   a signal for difference between scanning lines instead of the signal on the above still picture by the control of the picture movement-detecting circuit in the portion of the screen where the picture is moving.
Patent CA-2032965-A1 (CA)
Title: Removal of oil from water
Inventor: MARYASIN ILYA
IPC: B01D17/02
Filed: 1990-12-21
Abstract: ABSTRACT OF THE DISCLOSURE     A hydrophobic and lyophobic particular vermicular structure of expanded graphite, possessing the property of absorbing large amounts of petroleum products is described.  This expanded grahite is characterized by three main properties: (a) a specific density in the range of 0.003 - 0.1 g/ml; (b) a surface area in the range of 50-200 m2/g; and (c) closed pores in the range of 3% to 20%.  It can be used in the form of particulate, pillows, blankets, booms or as a filter medium.  The oil absorbed onto the expanded grahite can be released by pressure or recovered by solvent extraction.
Patent CA-2034266-A1 (CA)
Title: Thick film reagent spreading and reagent immobilization layer
Inventor: D ORAZIO PAUL A
IPC: G01N27/30
Filed: 1991-01-16
Abstract: ABSTRACT    A thick film reagent spreading and reagent immobilization layer disposed on a sensor device is described.  The layer in the preferred embodiment is comprised of a dielectric material.  The device includes at least two conductive substrates, each having a sensor site, with two sensor sites being bridged by the dielectric material layer.  The device has particular application for analytical uses.  The thick film layer is optimally disposed on an inert planar base.
Patent CA-2034909-A1 (CA)
Title: Method of bonding silicone elastomer to a substrate
Inventor: PASCUCCI CARLO
IPC: C09D183/04
Filed: 1991-01-24
Abstract: A method of bonding a silicone elastomer to a substrate which comprises treating the surface of the substrate with a cleaning agent which is a polydiorganosiloxane, for example a polydimethylsiloxane, and thereafter applying to the treated surface a room temperature curing silicone elastomer-forming composition. The method finds particular application in the construction industry for the bonding of sealants to non-porous substrates such as aluminium.
Patent CA-2039610-A1 (CA)
Title: Portable dispostable cover for hand-held voice instruments
Inventor: HOYTE CARL D
IPC: H04R1/12
Filed: 1991-04-02
Abstract: ABSTRACT OF THE DISCLOSURE     A cover for an audio hand set having a micro-phone and a handle and having an end pocket to receive at least an end of such a hand set, and, a handle cover connected to the pocket to extend along a major portion of the handle of the hand set, the device being readily attachable to and detachable from the hand set.
Patent CA-2041012-A1 (CA)
Title: Process of producing continuously cast strip and wire
Inventor: PRINZ BRUNO
IPC: C22F1/043
Filed: 1991-04-23
Abstract: ABSTRACT               In a process of producing strip or wire, which consists of a monotectic aluminum-silicon alloy comprising a matrix consisting of aluminum and an aluminum-silicon eu-tectic system and as a minority phase 1 to 50% by weight lead or bismuth included in said matrix, which strip or wire has been continuously cast at a high casting velocity and a high cooling rate from a molten material which has been heated to a temperature above the segregation temperature, and which strip or wire has been subjected to plastic defor-mation and to a heat treatment, the minority phase which is embedded in the form of elongate platelets in the strip or wire is transformed to more compact shapes by a heat treat-ment at temperatures of 550 to 600°C.
Patent CA-2042933-A1 (CA)
Title: Expanded polymer product with high distortion temperature, high flame resistance and low smoke toxicity and opacity
Inventor: LAURI LEONE
IPC: C08J9/00
Filed: 1991-05-21
Abstract: ABSTRACT          An expanded polymer product with high distortion temperature, high flame resistance and low smoke toxicity and opacity comprises, in combination:          -   between 18% and 25% of a mixture of at least two isocyanates;          -   between 8% and 11% of a modified terpolymer;          -   between 19% and 42% of a PVC resin in emulsion form;         -   between 4% and 7% of at least one expanding agent;          -   between 0.5% and 1% of at least one temperature stabilizer;          -   between 16% and 40% of TiO2.          Said product is used particularly in sea, ground and air transport, and in numerous constructional applications in which the materials must combine high technical characteristics with adequate lightness.
Patent CA-2044108-A1 (CA)
Title: Polymer/polyol and preformed stabilizer systems
Inventor: SIMROTH DONALD W
IPC: C08G18/63
Filed: 1991-06-07
Abstract: Improved polymer/polyol compositions and processes for making them; high potency preformed stabilizers used to make the polymer/polyol compositions and processes for making them; and improved polyurethane products made from the polymer/polyols compositions; characterized by a material reduction in polymer/polyol viscosity while raising the polymer solids content.
Patent CA-2047034-A1 (CA)
Title: Machine failure isolation using qualitative physics
Inventor: HAMILTON THOMAS P
IPC: G06N20/00
Filed: 1991-07-15
Abstract: Abstract Machine Failure Isolation Using Qualitative Physics A Qualitative Reasoning System performs machine failure isolation by generating a plurality of pending hypotheses (108) which assume the failure of one or more machine components and by testing each of the hypotheses by propagating actual values for machine parameters through confluence equations for the hypothesis being tested. Variables associated with hypotheses of a qualitative physics model are grouped into type I variables and type II variables, wherein any possible value measured for a type I variable is guaranteed to render at least one hypothesis inconsistent and some, but not all, possible values measured for a type II variable will render at least one hypothesis inconsistent.A set of confluences is deemed to be inconsistent by determining that there is no set of values which can be assigned to all unknown variables of the confluences which result in a consistent set of predictions. The value of an unknown variable is determined by iteratively setting the variable to each of its possible values and, for each iteration, propagating the known variables and the value of the unknown variable through confluences of the model. A model instantiator converts computer workstation user input into usable model information and provides other optimizations which reduce the number of confluences and variables of the model.
Patent CA-2047358-A1 (CA)
Inventor: LAWSON JERRY W
IPC: A24D1/22
Filed: 1991-07-18
Abstract: Disclosed are smoking articles, such as cigarettes, which include a short, i.e., about 9 mm long carbonaceous fuel element positioned in a heat exchange relationship with a physically separate aerosol generating means. Surrounding the fuel element is a tobacco/glass insulating wrapper, preferably comprising at least four layers, defined from the periphery of the fuel element as:  (1) a first layer of glass fibers;  (2) a first tobacco-containing sheet;  (3) a second layer of glass fibers, and (4) a second tobacco-containing sheet.
Patent CA-2048296-A1 (CA)
Title: Blends of polypropylene and ethylene copolymer and films made from the blend
Inventor: SCHIRMER HENRY G
IPC: C08L23/20
Filed: 1991-08-01
Abstract: A composition of matter comprises a blend of propylene homopolymer or copolymer, and ethylene copolymer.      Ethylene vinyl acetate copolymer (EVA), very low density polyethylene (VLDPE), and ethylene alpha olefin copolymer are preferred ethylene copolymers. VLDPE with a high molecular weight (low melt index), and with a broad molecular weight distribution (high flow rate ratio) is preferred. A multilayer film comprises a first layer comprising a propylene homopolymer or copolymer, or blend, and at least one outer sealable layer.
Patent CA-2050635-A1 (CA)
Title: Class ii protein of the outer membrane of neisseria meningitidis having immunologic carrier and enhancement properties, and vaccines containing same
Inventor: OLIFF ALLEN I
IPC: A61K47/42
Filed: 1991-07-15
Abstract: TITLE OF THE INVENTION THE CLASS II PROTEIN OF THE OUTER MEMBRANE OF NEISSERIA MENINGITIDIS HAVING IMMUNOLOGIC CARRIER AND ENHANCEMENT PROPERTIES, AND VACCINES CONTAINING SAME            ABSTRACT OF THE INVENTION       The Class II major immuno-enhancing protein (MIEP) of Neisseria meningitidis, purified directly from the outer membrane of Neisseria meningitidis, or obtained through recombinant cloning and expression of DNA encoding the MIEP of Neisseria meningintidis, has immunologic carrier as well as immunologic enhancement and mitogenic properties.
Patent CA-2050700-A1 (CA)
Inventor: MAUCH ZACHARY
IPC: B60S1/38
Filed: 1991-09-05
Abstract: ABSTRACT OF THE DISCLOSURE      There is disclosed a windshield wiper member and cleaning member for use therewith.  The extruded one piece wiper mounting includes a longitudinal slot to receive a wiper blade and spaced therefrom there is a support member for supporting an auxiliary cleaning member.  The auxiliary cleaning member is rotatably mounted on the support member and is rotatable to a variety of inclinations relative to the blade cleaning member to provide an efficient wiper capable of removing non-soluble debris without smearing.
Patent CA-2051502-A1 (CA)
Title: Carbon composite material incorporating carbon film, forming material and process for producing the carbon film
Inventor: SHINOHARA KOUJI
IPC: B32B27/06
Filed: 1991-09-16
Abstract: ABSTRACT    The present  invention provides  a carbon composite material diminished in anisotropy and comprising a carbon film and a resin, a forming material comprising the carbon film and the resin for producing the composite material, and a process for producing the carbon film.
Patent CA-2053440-A1 (CA)
IPC: F16L53/38
Filed: 1991-10-15
Abstract: ABSTRACT A retarding heat tracing system and method of making same adapted to externally heat a process pipe including a channel member, a heat transfer element, a retarding heat transfer strip made from a retarding heat transfer material, and a plurality of clamping members.  The retarding heat transfer strip has a longitudinal cavity which receives the heat transfer element.  The external shape of the retarding heat transfer strip substantially conforms to a longitudinal recess of the channel member.  The retarding heat transfer strip with heat transfer element is positioned in the recess of the channel member and the clamping members attach the channel member to the process pipe. The retarding heat transfer material optimizes the heat transfer between the heat transfer element and the process pipe while minimizing the heat transfer element heat loss.
Patent CA-2054087-A1 (CA)
Title: Aqueous soluble infrared antihalation dyes
Inventor: FABRICIUS DIETRICH M
IPC: C09B23/01
Filed: 1991-10-23
Abstract: TITLE AQUEOUS SOLUBLE INFRARED ANTIHALATION DYES                 ABSTRACT      Sulfoalkyl substituted indolenine dyes that absorb infrared radiation and photosensitive elements containing said dyes are disclosed.  These dyes are useful as antihalation dyes in infrared sensitive photographic elements which show dye low stain.  These dyes are represented by the following structure:                      wherein X is F, Cl, or Br; R is a hydrocarbon moiety containing from two to about five carbon atoms; and Y is a cation.  In a preferred embodiment X is Cl. In a more preferred embodiment R is -(CH2)3- or 0(CH2)4-.