baber/WOPTO huggingface dataset:
Patent CA-2012108-A1 (CA)
Title: Process for sealing basements and buildings against radon gas
Inventor: NELSON WILLIAM E
IPC: E04F21/00
Filed: 1990-03-14
Abstract: ABSTRACT            This invention provides a reliable product for use as a sealant to prevent Radon gas entry into buildings.            Uranium emits Radon.  The presence of Uranium in soil indicates the presence of radon and the potential release of radon as a soil gas.            Radon gas impregnates and passes through many substances including soils, concrete and many other porous materials.          The presence of Radon gas and the permeability of soils surroundings a community may vary greatly from one community to another.      Moisture travels through soils, beneath basement floor levels, and migrates into the air releasing soil gases.          These gases accumulate or concentrate when captured; particularly in poorly ventilated buildings.     Radon is classed as a chemically inert, noble gas and is of the same family as helium, neon, krypton, xenon, thoron and actinon.  One of the most damaging impacts of exposure to high levels of radon gas is that it causes cancer in humans.    The development and implementation of reliable protection against Radon soil gas migration, into homes would provide significant health benefits to people living and working in buildings in areas where high levels of Radon soil gas occurs.            This sealant's adhesion and bonding ability is superior to any presently on the market.  It repels water and insects, is odorless and its elasticity will last for the life-span of any building.
Patent CA-2012392-A1 (CA)
IPC: H04B7/26
Filed: 1990-03-16
Abstract: A variable transmission power type transmitter comprises a transmission amplifier, a detecting circuit for detection of a transmission wave signal from the transmission amplifier, an automatic power control circuit for automatic control of the transmission power of the transmitter amplifier depending on the difference between a set value and a detected output of the detecting circuit, a set point providing circuit for generating set values and for selecting one of the set values to be supplied to the automatic power control circuit, and a transmission interruption detecting circuit for detecting existence or absence of the transmission wave signal by comparing the detected output of the detecting means with a reference value. The reference value is automatically generated from one of the set values in the set point providing circuit. Therefore, a variable resistor for adjusting the reference value and a adjustment process are not required.
Patent CA-2013135-A1 (CA)
Inventor: WALTON THOMAS C
IPC: A63B53/10
Filed: 1990-03-27
Abstract: Abstract of the Disclosure A golf shaft selectively reinforced with a composite outer shell substantially shorter in length than the golf shaft.  A single shell is molded at a selected location over the shaft.      The location of the shell controls the kick point of the golf shaft.  The shell is comprised of a reinforced polymeric com-posite.
Patent CA-2013194-A1 (CA)
IPC: E01H1/05
Filed: 1990-03-27
Abstract: An automatic floor-cleaning and floor-treating machine having improved brush-pressure control, said machine comprising a body (1) which is supported on wheels (2, 3) and one or more rotating brushes (4), said brushes (4) being mounted on one side of a frame (5) which can be pivoted relative to the body, the other side of the frame beyond the center of rotation being connected to one end of a spring (6), the other end of which can be displaced by means of a motor, characterized in that there is provided a second spring (9) which is connected at one end to the displaceable end of the first spring (6), and at the other end to the frame at the side where the rotating brushes are mounted. Preferably, the attachment site of the first spring (6) to the second spring (9) is connected to the actuator arm (7) of a servomotor (8).
Patent CA-2015078-A1 (CA)
IPC: G06F1/16
Filed: 1990-04-20
Abstract: ABSTRACT OF THE DISCLOSURE    An electronic information equipment is constructed to accommodate a keyboard (4) sandwiched between a main body (1) and a display (2).  The keyboard (4) is provided separably from the main body (1).  The display (2) is attached to the main body (1) by a supporting device (3) at a position where the display face (2a) is movable to a predetermined position.  The supporting device (3) comprises rotating device portions (9, 10) and tilting device portions (15, 16, 17).  The rotating device portions (9, 10) rotate the display (2) in the horizontal direction (H) about an axis intersecting the installation plane.  The tilting device portions (15, 16, 17) rotate the display (2) at a vertical direction (V) with respect to the main body (1) for supporting the display face (2a) at a position intersecting the installation face at an arbitrary angle.  The necessity to place the main body (1) in front of the operator is eliminated resulting in a wide and effective usage of the desk employed as an installation plane.
Patent CA-2015116-A1 (CA)
Title: Material for multilayer sliding surface bearings
Inventor: BRAUS JURGEN
IPC: C08L27/18
Filed: 1990-04-23
Abstract: ABSTRACT                A material for multiolayer sliding surface bearings comprises a backing and a sliding layer, which is joined to said backing and comprises a matrix of a fluorine-containing polymeric material and metal powder that is finely dispersed in said matrix.       For use in the manufacture of bearing shells for crankpins and mainshaft portions of crank-shafts in reciprocating piston machines, the fluorine-containing polymeric material contains inclusions con-sisting of metal fluoride and metal oxyfluoride and consists of monoclinic crystalline PVDF, amorphous PVDF and 10 to 90 % by weight of a novel polymer, which in an X-ray diffraction pattern made by CuK.alpha. radiation exhibits a sharp intensity peak at a double Bragg angle of 2 ? = 18.07?0.03 degrees and has a melting range of 320 to 350 °C and is free of orthorhombic crystalline PVDF.
Patent CA-2015315-A1 (CA)
Title: Improved method of blood component decontamination by glucose addition and post-decontamination gassing
Inventor: WIESEHAHN GARY P
IPC: A61K35/14
Filed: 1990-04-24
Abstract: Biological compositions are freed of functional polynucleotides by treatment of the biological composition with psoralen derivatives under irradiation conditions in which the proteins retain their original physiological activities and any polynucleotide present is rendered inactive.
Patent CA-2017878-A1 (CA)
IPC: G02B6/44
Filed: 1990-05-30
Abstract: ABSTRACT OF THE DISCLOSURE      Disclosed is a composite overhead cable structure having high seal properties, comprising a metallic pipe, at least one layer of stranded metallic elongated conductor surrounding the outer periphery of the pipe, and an optical fiber cable disposed within and extending throughout the length of the pipe, wherein the metallic pipe comprises at least two metallic pipe sections which are arranged in alignment and connected at their respective confronting terminals having contours complementary to each other and wherein the metallic pipe has a specific structure of connection between the mutually adjacent pipe sections, such that a longitudinal through-weld extends along the entire length of the metallic pipe and such that a connect-ing turning weld extends between first and second different points on the longitudinal through-weld of the metallic pipe so as to turn around the axis of said metallic pipe, the first and second points being positioned at a distance which satisfies the a specific relationship.  The welded metallic pipe has no weld defects in the longitudinal through-weld thereof so that the metallic pipe has excel-lent seal properties and therefore, the composite over cable structure of the present invention is free from the danger that rain water or the like enters the pipe and adversely affects the optical fiber cable.
Patent CA-2019092-A1 (CA)
Inventor: BLACK ANDREW
IPC: H01R11/24
Filed: 1990-06-15
Abstract: A pair of improved jumper cables one end of which automatically lights when the other is arbitrarily connected to a source battery and also automatically indicates the polarity of the source battery by means of light emitting diodes.  Also when a pair of probes at the lighted end is arbitrarily connected to the destination battery,  the polarity  of  the  destination battery  is automatically indicated  by  means  of  light  emitting  diodes.    The polarities  of  the  source battery  and  the  destination battery are displayed together on the face of one of the clamps at the  lighted end.   By a comparison of the indicated polarities the correct connection can be made.
Patent CA-2020956-A1 (CA)
Title: Process for the production of composite molded articles
Inventor: INOUE MASATAKA
IPC: B29C67/20
Filed: 1990-07-11
Abstract: Disclosed is a process for the production of an integral composite molded item comprising (i) a surface portion comprising a synthetic resin phase containing a fibrous reinforcing material, (ii) a core portion comprising the synthetic resin phase containing bubble-containing particles, and (iii) a separation layer positioned between the surface portion and the core portion, the process comprising the steps of:          (a) providing in a substantially sealed mold a separation layer which does not substantially pass there-through expandable particles or compressed lightweight particles of an elastic material but which is capable of passing a synthetic resin or its precursor that is liquidized at the time of molding:          (b) providing the synthetic resin or its precursor in the mold;          (c) arranging a fibrous reinforcing material between the separation layer and the mold, integrated with the separation layer or separately but associated therewith;          (d) providing an aggregate of the expandable particles and/or compressed particles of the lightweight elastic material on a side of the separation layer opposite to the side of an inner surface of the mold;          (e) causing volume expansion of the aggregate by elevation of temperature to thereby expand the expandable particles or relieving compression urged on the compressed lightweight particles to thereby expand the lightweight particles;          (f) flowing the liquidized synthetic resin or its precursor through the separation layer to spread it over between the separation layer and the mold, and among the expanded particles, or among the particles of the lightweight elastic material, while pressing the separation layer onto the inner surface of the mold as the result of volume expansion in the step (e) above;          (g) completing formation-solidification or solidification of the synthetic resin to form a surface portion and a core portion; and (h) taking out the resulting composite molded item. The type of the resin and the type of bubble-containing particles may be selected and combined differently.
Patent CA-2020987-A1 (CA)
Title: Polyurethane polyols and high solids coatings therefrom
Inventor: GARDON JOHN L
IPC: C08G18/32
Filed: 1990-07-12
Abstract: Polyurethane Polyols and High Solids Coatings Therefrom A polyurethane polyol is provided, which comprises the reaction pro-duct of a particular isocyanate component and a particular diol com-ponent in a specified ratio, which polyol component is selected from substantially monomeric, diols wherein the hydroxyl groups are separated by 3 carbon atoms or less. Such polyurethane polyols possess a desirable spectrum of molecular weight properties, making them especially suitable for use in formulating high solids, high per-formance coatings.
Patent CA-2023108-A1 (CA)
Title: Arrangement for cannulas
Inventor: HANAFI AMEUR
IPC: A61M5/178
Filed: 1990-08-10
Abstract: ABSTRACT OF THE DISCLOSURE    Arrangement for cannulas comprising protective sleeves capable of being displaced in the longitudinal direction over a holder part provided with a twin-pointed cannula said pro-tective sleeves serving as adapters provided with connecting devices such as a bayonet socket or a similar device, ar-ranged to be fitted into an appropriate corresponding fitment such as bayonet socket comprised in a blood tube holder.
Patent CA-2025366-A1 (CA)
Title: Protective cap for mail box lock
Inventor: SOLOMON JOANNE E
IPC: E05B17/14
Filed: 1990-09-14
Abstract: ABSTRACT           Apparatus for protecting a lock from precipitation due to adverse weather, and other environmental conditions is disclosed.  A strap is provided, having first and second ends. The second end of the apparatus is securable within a lockable chamber, thereby impeding unauthorized removal of the lock protector.  The first end has an integral cap portion adapted to cover an external face of the lock.  Preferably, the cap has a rim portion to facilitate gripping or prying for removal.  Preferably, the strap has an aperture aligned with the location of the mail box number, so that the number can be seen.
Patent CA-2029850-A1 (CA)
Title: Integrated communications link having dynamically allocatable bandwidth and a protocol for transmission of allocation information over the link
Inventor: VARGHESE GEORGE
IPC: H04Q11/04
Filed: 1990-11-13
Abstract: ABSTRACT OF THE DISCLOSURE    An integrated communications link in a communications network that is provided with apparatus which allows dynamic allocability of bandwidth among a plurality of channels.  At least three different types of information can be carried on these  channels,  and the bandwidth of these channels  are dynamic so that it can be changed according to a determinable scheme.  The link also sends error control information with a message that informs the receiver how the bandwidth is to be allocated,  this  error  control  information  providing  an extremely high level of assurance that the receiver of the information will know how the received information is to be allocated.
Patent CA-2031295-A1 (CA)
Title: Paperboard laminate
IPC: B32B27/10
Filed: 1990-11-30
Abstract: A non-foil paperboard laminate having improved resistance to the migration of essential oils, flavors and Vitamins in liquid packaging and improved oxygen barrier characteristics for both liquid and dry packaging comprises paperboard sandwiched between two layers of a heat-sealable, low density polyethylene polymer and including a symmetrical five component barrier layer coextruded onto the surface of one of the low density polyethylene layers.  The barrier layer  comprises  low density polyethylene/adhesive  tie layer/Ethylene  vinyl  alcohol  copolymer/adhesive  tie layer/low density polyethylene.
Patent CA-2033143-A1 (CA)
Title: Alkyl esters of 5-heterocyclic-pyridine-2,3-dicarboxylate acids, 5-heterocyclic 2-(2-imidazoline-2-yl)pyridines, useful as herbicidal agents and methods for the preparation thereof
Inventor: FINN JOHN MICHAEL
IPC: C07D405/04
Filed: 1990-12-24
Abstract: There are provided alkyl esters of 5-heterocyclic-pyridine-2,3-dicarboxylic acids and 5-heterocyclic 2-(2-imidazolin-2-yl)pyridine compounds, which are effective for the control of undesirable plant species. Also described are methods for the herbicidal use of the compounds and methods for their preparation. The compounds have the structures:   (see formula I) (see formula II)
Patent CA-2035699-A1 (CA)
Inventor: SCOTT HARVEY
IPC: B62K13/02
Filed: 1991-02-05
Abstract: In general, two person bicycles are complicated structures requiring substantial modification to the basic structure of the vehicle.  A kit for converting a conventional bicycle into a two person vehicle includes a rear T-shaped crossbar for mounting on the top rear of a bicycle frame, the rear crossbar carrying a pair of seats on the outer free ends thereof; a front, generally U-shaped crossbar with a central bracket  for mounting on the top end of the bicycle frame; fixed handlebars on one arm of the front crossbar, a rotatable shaft in the other arm of the front crossbar, a steering linkage interconnecting the shaft and the top end of the front fork carrying shank of the bicycle, handlebars on the top end of the shaft for rotating the latter to steer the bicycle, and an extra pedal and pedal crank arm connected to each existing pedal, so that each rider has a set of two pedals on each side of the bicycle frame.
Patent CA-2036463-A1 (CA)
Title: Synthetic peptides specific for the detection of antibodies to hcv, diagnosis of hcv infection and prevention thereof as vaccines
Inventor: WANG CHANG Y
IPC: C07K16/00
Filed: 1991-02-15
Abstract: The present invention relates to a method for the detection in body fluids of antibodies to hepatitis C virus (HCV), also known as a non-A non-B hepatitis (NANBH) virus and to the diagnosis of NANBH by the use of a composition of synthetic peptides. Each of these peptides has an amino acid sequence corresponding to immunodominant regions of a fusion protein and a non-structural polypeptide of HCV, SOD/HCV C100 and a postulated HCV structural (core) protein. More specifically, the present invention is directed to the use of a group of synthetic peptides in a prescribed sequence or their analogues for the detection of antibodies to HCV in body fluids. The detection method includes an enzyme-linked immunosorbent assay (ELISA), and other forms of immunoassay procedures.      The present invention also relates to a method for generating high titer antibodies to HCV in healthy mammals, including humans, by the use of compositions containing these synthetic peptides, analogues or mixtures thereof, in a free, conjugated ar polymeric form as key components in synthetic vaccines for the prevention of non-A non-B hepatitis (NANBH).
Patent CA-2038973-A1 (CA)
Title: Catalyst and process for synthesizing saturated carboxylic esters
Inventor: LEGRAND CHRISTOPHE
IPC: C07C69/24
Filed: 1991-03-25
Abstract: Process for the preparation of esters of saturated carboxylic acids from alkyl formate and an olefin, without substantial presence of carbon monoxide, at a temperature of 120-280 DEG C, at a pressure of 1-3000 bars, in the presence of a ruthenium-based catalyst coordinated with ligands chosen from carbon monoxide, halogen atoms and amines, and in the presence of an amide as solvent. The said catalyst is chosen from the catalysts consisting essentially of RuCl3.3H2O; the catalysts consisting essentially of the combination of a RuCl3.3H2O associated with at least one stabiliser chosen from iodine, the covalent iodides and the quaternary ammonium halides; the catalysts comprising Ru3(CO)12 associated with at least one stabiliser such as previously mentioned; and the catalysts chosen from RuI3, [RuCl2(CO)3]2. Ru(NH3)6Cl3 and [Ru(NH3)5Cl]Cl2, comprising, if the case arises, in addition at least one stabiliser such as previously mentioned.
Patent CA-2040674-A1 (CA)
Title: Water-soluble methine compound and photographic silver halide emulsion containing the same
Inventor: KOYA KEIZO
IPC: C09B69/06
Filed: 1991-04-17
Abstract: A water-soluble methine compound represented by the following general formula (I):       (I) (R-COOe)m wherein Z1 and Z2, which may be the same or different, each represents a non-metallic atomic group required for forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring;  R1 and R2, which may be the same or different, each represents an alkyl group;   Q1 and Q2 each represents an atomic group required,  in combina-tion, for forming a 4-thiazolidinone ring, a 5-thiazol-idinone ring, a 4-imidazolidinone ring, a 4-oxazolidin-one  ring,  a 5-oxazolidinone  ring,  a  5-imidazolidinone ring or a 4-dithiolanone ring;   L1, L2, L3, L4 and L5, which may be the same or different, each represents a methine group;   R represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group;  m repre-sents 1 or 2;   i and h each represents 0 or 1;   ?     represents 1 or 2;  and j and k each represents 0, 1, 2 or 3.        A photographic silver halide emulsion containing said methine compound added in the form of an aqueous solution is also disclosed.
Patent CA-2041314-A1 (CA)
Inventor: MATHIEU JEAN-JACQUES
IPC: A23J3/18
Filed: 1991-05-02
Abstract: A process for manufacturing vital wheat gluten with substantially no objectionable flavor or aroma includes extracting gluten from wheat or wheat flour in an aqueous process to provide vital wet gum wheat gluten which is then mixed with an aqueous preparation containing an amount of antioxidant effective to prevent production of an objectionable flavor or aroma in a subsequent drying step.      The aqueous antioxidant/gluten mixture is dried to produce dried vital wheat gluten with substantially no objectionable flavor or aroma.
Patent CA-2041480-A1 (CA)
Inventor: CASEY JEREMIAH P
IPC: C08G18/18
Filed: 1991-04-30
Abstract: ABSTRACT     The invention pertains to tertiary amines used as catalysts for the preparation of polyurethane foams prepared via the catalytic reaction of a polyisocyanate with a polyol in the presence of blowing agents, etc. The tertiary amine catalysts are prepared by reacting an olefinic nitrile with aliphatic polyol having at least secondary hydroxyl functionality in a ratio less than stoichiometric for providing cyanoalkylated polyol having residual hydroxyl functionality.  The resulting cyanoalkylated polyol then is reacted with a secondary amine under conditions for effective reductive alkylation.    The tertiary amine catalysts, because of residual secondary hydroxyl functionality, provide for uniform dispersion within a polyurethane formulation; they provide for additional or extended pot life in polyurethane formulations at temperatures below reaction condition, and they are bound by reaction on cure.
Patent CA-2042632-A1 (CA)
Title: Brace for scaffolding plank
Inventor: DOOLITTLE LEONARD L
IPC: E04G1/15
Filed: 1991-05-15
Abstract: ABSTRACT           The beam deflection resistance of a scaffolding plank is increased by removably positioning at least one secondary plank along the longitudinal axis of the primary plank and securing the secondary planks in position with the brace of the present invention. The brace comprises a closed frame member, having an essentially isosceles trapezoidal cross section.  The brace has a first base piece, a second base piece, and two side pieces.  The first base piece is essentially as long as the width of the primary plank and has its ends affixed at right angles to the first ends of the two side pieces. The second base piece is essentially as long as the thickness of at least one secondary plank and has its ends affixed to the second ends of the two side pieces. Each side piece has a first and a second straight portion with an obtuse angle forced between said straight portions, the first straight portion being at the first end of said side piece and being at least as long as the thickness of said primary plank, said second portion being at the second end of said side piece and being of proper length and said obtuse angle being of proper angularity to form the isosceles trapezoidal cross section such that the height of said trapezoid is at least equal to the sum of the thickness of said primary plank and the width of said secondary plank.
Patent CA-2042961-A1 (CA)
Title: Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution
Inventor: LO FREDERICK YIP-KWAI
IPC: C08F4/16
Filed: 1991-05-21
Abstract: There is disclosed a supported olefin polymerization catalyst composition comprising a precursor and a catalyst activator. The precursor comprises a magnesium compound e.g., dibutylmagnesium, a cyclopentadienyl group - containing zirconium compound, and a titanic and/or a vanadium compound e.g., TiCl4, and an organic compound, e.g., an alcohol. The catalyst activator is a mixture of a conventional Ziegler/Natta co-catalyst and a zirconium sites activator, e.g., methylaluminumoxane. The catalyst is used in the preserve of small amounts of hydrogen to produce polymers having multimodal molecular weight distribution in a single reactor.