baber/WOPTO huggingface dataset:
Patent CA-2043431-A1 (CA)
Title: Device for monitoring the closure of the opening points of a motor vehicle
IPC: B60R25/01
Filed: 1991-05-29
Abstract: The invention relates to a device for monitoring the closure of the opening points of a motor vehicle, in which each opening point is equipped with a closure contact which is connected to a central unit.        It is characterised in that the central unit is connected to all the opening points by means of a single common line (8) with two conductors (31, 32), in that the central  unit  comprises  at  least  one  periodic-signal generator (28) connected to the said two conductors, in that each opening point comprises a passive receiver circuit tuned to the frequency of the periodic signal supplied by the said generator (28) of the central unit, the said passive circuit being connected in series with the closure contact of the said opening point, and in that the said device comprises, furthermore, means for signalling a closure fault which are sensitive to the variations of the signal generated by the generator in response to the actuation of the corresponding closure contact.
Patent CA-2043747-A1 (CA)
IPC: B29C43/12
Filed: 1991-06-03
Abstract: A method and apparatus of molding a hollow fan blade is disclosed wherein a fiberglass preform is used to support the upper layers of fiberglass cloth within a mold.   As resin is injected  into  the  mold,  both  the  fiberglass  cloth  and  the fiberglass preform become impregnated thereby bonding the two together into a single unit during the molding operation during which heat and pressure is applied.
Patent CA-2044140-A1 (CA)
Title: Five-gallon plastic syrup container
Inventor: RICHTER SIMON J
IPC: B65D25/28
Filed: 1990-10-24
Abstract: The invention relates to a plastic container for syrup or flavor concentrate suitable for use with a post-mix beverage dispenser.  The problem associated with concentrate containers for post-mix beverage dispensers is their expense and non-recyclability. A  container (12) having a first opening (1) for filling and a second opening (2) for connection to a pump. The second opening (2) is defined by a tube (4) extending down the exterior of the container (12) sidewall. The second opening (2) has a valve actuator (3) therein. The top and bottom of the container (12) have complementary shapes (6, 8) to permit vertical stacking of similar containers.
Patent CA-2049484-A1 (CA)
Inventor: ROBERTSON GORDON B
IPC: E02F3/92
Filed: 1991-08-19
Abstract: For excavation of a clay seabed, particularly in a coffer dam to expose a buried pipeline therefor a minimum of three water nozzles producing water jets  and the associated effects 16, 17 and 18 are used.  The nozzles are mounted on a disc 12 which can move horizontally and vertically and which rotates in a horizontal plane.   The effect 18  (if operated alone) would produce a trench 22 having sloping sides.   The two effects 16,  17 enable a trench having vertical sides to be cut and enable the disc 12 to be moved downwardly until obstructed by the base of the trench.  The three nozzles are equiangularly spaced about the axis.  The rotation of the disc 12 makes the effect of the nozzles possible.
Patent CA-2049567-A1 (CA)
Inventor: COLEMAN SEAB H III
IPC: B08B15/02
Filed: 1991-08-20
Abstract: An asbestos collection and containment device used in removing hazardous material from overhead work areas has an adjustable support scaffold with a flexible walled enclosure having an open upper portion and a funnel-shaped lower portion.          A constant exhaust airflow filtration and wetting apparatus within and communicating with the enclosure which is mobile and self-contained.
Patent CA-2049666-A1 (CA)
Inventor: BAVHAMMAR TORSTEN
IPC: B23K3/047
Filed: 1991-08-22
Abstract: A method and apparatus for reducing the energy consumption and minimizing the martensite formation when joining a connecting piece of metal with a metal surface by pin brazing, involving exact measurement and control of the energy required for melting down a given lead against a given work piece surface. The current is controlled such that the energy imparted to melt the lead will be interrupted when a precise energy required for melting off a given melting lead is achieved, automatically forwarding the melted lead as the lead is melted off, and interrupting the process after a pre-defined time interval has expired that the length of the welding arc/distance between the melting lead and the work piece remain constant during the brazing process.
Patent CA-2051076-A1 (CA)
IPC: F25J3/04
Filed: 1991-09-10
Abstract: ABSTRACT The present invention is a cryogenic process for the production of nitrogen by distilling air in a double column distillation system comprising a high pressure column and a low pressure column associated functionally with an extra high pressure (EHP) distillation column for added nitrogen production.  The critical step of the invention is the dual pathway condensation of nitrogen streams in two reboiler/condensers located in the stripping section of the low pressure column to provide condensed high pressure and EHP nitrogen streams that provides liquid reflux to the high pressure columns.
Patent CA-2051969-A1 (CA)
Title: Crossed-linked epoxy resins with non-linear optical properties
Inventor: NORDMANN JENS
IPC: C07D303/34
Filed: 1991-09-20
Abstract: ABSTRACT         The invention provides epoxy resins having the following structure:         The cross-linked epoxy resins have non-linear optical properties.
Patent CA-2052312-A1 (CA)
Title: Gas fire
Inventor: PHILIPS STEVEN J
IPC: F24C3/10
Filed: 1991-09-26
Abstract: Abstract Gas Fire In  a gas fire, the radiant heat output from imitation coal pieces 2 caused to radiate by flames from a burner 1 is supplemented  by  convective air drawn into the base of  the fire and  passing  through  duct 6 before  emerging  through outlets 7,  the duct being transversed by flue tubes 8,  9, 10, 11 to which combustion gases from the burner pass in the direction of the arrows B.     A  problem  with such a fire is if the flue outlet  12 become  blocked because the flow of gases reverses direction relative to the arrows B and the burner then combusts within unsafe  limits  if the doors 4, 5 are closed.   To  overcome this some of the flue tubes 8, 10 are provided with openings 10a, partially  shielded  by shield 22, to allow  escape  of recirculating  combustion products into the convection duct, thereby  allowing  the burner to continue operation in  safe limits in the event of flue blockage.
Patent CA-2052332-A1 (CA)
Inventor: GUNTLY THOMAS G
IPC: F02M17/04
Filed: 1991-09-26
Abstract: A floatless carburetor with a fuel reservoir in communication with the carburetor throttle bore includes an integral primer system which is operable to introduce fuel directly into both the carburetor throttle bore and the fuel reservoir.  A plurality of check valves control flow of fuel from the fuel tank into the primer system and into the throttle bore and fuel reservoir.  The carburetor and primer system are adapted to be operated in conjunction with an impulse-type fuel pump, wherein the primer system is operable to manually pump fuel into the reservoir when the fuel pump is not functioning.
Patent CA-2054429-A1 (CA)
Title: Electrostatic spray applicator with two-channel optical monitoring system
Inventor: JACOBSEN CARL
IPC: B05B5/053
Filed: 1991-10-29
Abstract: Abstract of the Disclosure An electrostatic spray applicator system of the type utilizing pressurized air from an external source to develop the electrical voltage driving conditions within a spray applicator.  The electrical operating conditions are represented by electrical signal generating devices within the applicator, and these electrical signals are converted into optical signals within the applicator for transmission to a remote source.  The optical signals are received at the remote source and converted back into electrical signals corresponding to the parameters being measured, and are subsequently converted into decimal display values for visualization by an operator.            P69/7 ?
Patent CA-2055322-A1 (CA)
Title: Two-pass drawing technique for creating high strength tubing
Inventor: NELSON STANLEY R
IPC: C21D8/10
Filed: 1991-11-13
Abstract: TWO-PASS DRAWING TECHNIQUE FOR CREATING HIGH STRENGTH TUBING          ABSTRACT OF THE DISCLOSURE      A method of producing high performance cartridge cases by processing alloy steels of interest into high strength tubing is disclosed which includes subjecting the annealed alloy steel of interest to at least two passes of drawing in which the total area reduction of each pass is such that the exit temperature of the drawn alloy steel of interest remains below a temperature which will effect austenite to martensite transformation and age hardening the material of interest.  The alloy steel of interest is one selected from a group of alloys consisting of metal that undergo phase transformation during work hardening.
Patent CA-2057506-A1 (CA)
Title: Laser trapping and method for applications thereof
Inventor: SASAKI KEIJI
IPC: H05H3/04
Filed: 1991-12-12
Abstract: This invention provides laser trapping designed to trap a microparticle or a group of microparticles by scanning at least a focused laser beam at high speed.        This laser trapping make it possible to control the formation of microparticles into a specified pattern according to the scanning form of the focused laser beam, fix and transport said pattern, and trap and manipulate the microparticles with lower index of refraction than that of a medium, or other photoreflective microparticles such as a metal.        Consequently, with increasing degree of freedom of processing and modification on various microparticles, the field of application expands.
Patent CA-2059277-A1 (CA)
Title: Cryogenic refrigeration apparatus
Inventor: CRUNKLETON JAMES A
IPC: F25B9/10
Filed: 1991-04-19
Abstract: A technique for producing a cold environment in a refrigerant system in which input fluid from a compressor (11) at a first temperature is introduced into an input channel (18) of the system and is pre-cooled to a second temperature for supply to one of at least two stages of the system (13, 14) and to a third temperature for supply to another stage (15) thereof. The temperatures at such stages are reduced to fourth and fifth temperatures below the second and third temperatures, respectively. Fluid at the fourth temperature from the one stage is returned through the input channel to the compressor and fluid at the fifth temperature from the other stage is returned to the compressor through an output channel (24) so that pre-cooling of the input fluid to the one stage occurs by regenerative cooling and counterflow cooling and pre-cooling of the input fluid to the other stage occurs primarily by counterflow cooling.
Patent CA-2059919-A1 (CA)
Title: Method of forming composite electrical contacts having carbonaceaous secondary phase
Inventor: LEE MINYOUNG
IPC: H01B1/02
Filed: 1992-01-23
Abstract: RD-19,547 ABSTRACT OF THE DISCLOSURE           Improved composite electrical contacts are comprised of about 0.5 to 50 volume percent of a carbonaceous secondary phase, and the remainder a conductor metal matrix, the metal matrix being substantially free of carbon in the matrix grain boundaries.  The composite contacts are formed by providing a powder comprised of a predetermined volume percent of the carbonaceous particles, and the remainder the conductor metal, the carbonaceous particles having a coating of a metal from the group consisting of silver, nickel, chromium, and mixtures thereof sufficient to minimize flaking of carbon from the carbonaceous particles.  The powder is consolidated into a compact, and sintered in a reducing atmosphere or vacuum to increase density without causing substantial gas formation within the compact.
Patent CA-2061289-A1 (CA)
Title: High organic peroxide content polypropylene
Inventor: ADAMS JOHN D
IPC: C08L23/12
Filed: 1992-02-17
Abstract: Abstract of the Disclosure A homogenous, free-flowing, resin containing 80 to 90 weight percent of polypropylene and 10 to 20 weight percent of liquid organic peroxide, where the weight percents are based on the total weight of the polypropylene and the liquid organic peroxide, is provided.  Furthermore, a process is provided for producing this  polypropylene by mixing  80  to 90 weight percent of polypropylene, in the form of 100-500 micron particles, with 10 to 20 weight percent of liquid organic peroxide, where the weight percents are based on the total weight of the polypropylene and the liquid organic peroxide.
Patent CA-2062687-A1 (CA)
Title: Repellant composition containing natural oils of citronella, cedar and wintergreen and use thereof
Inventor: SHERWOOD KAREN
IPC: A01N65/44
Filed: 1992-03-11
Abstract: ABSTRACT OF THE DISCLOSURE     An environmentally safe, topical pest repellant is described.          The repellant action is attributable to a mixture of natural oils of citronella, cedar, and wintergreen.  These natural oils, mixed in equal amounts, are combined in a non-toxic base, such as olive oil.  The mixture is effective against diverse species, including mosquitoes and ticks.
Patent CA-2064105-A1 (CA)
Inventor: SZYJKOWSKI JERZY
IPC: E04F19/08
Filed: 1992-03-23
Abstract: A removable access door for covering small openings in walls and ceilings includes a panel member and at least two devices  for  removably  attaching the panel member to the structure.  Each device includes a clamping member pivotally mounted adjacent a side edge of the panel and an engagement member for pivoting the clamping member from a first position that permits the clamping member to be inserted into the opening towards a second position where the clamping member extends  behind  an  edge  section  of  the  structure.    The engagement member is connected to its respective clamping member and is movable to an initial position to engage and be actuated by an edge section of the structure as the attaching device is inserted into the opening.   A spring biases the attaching devices to swing the clamping members to the second position and releasably clamp the edge sections.  The door can be easily removed with the use of a screwdriver inserted behind the edge of the panel.
Patent CA-2068090-A1 (CA)
Inventor: SINDERMANN MARTIN
IPC: F16K11/087
Filed: 1992-05-06
Abstract: A rotary valve has cylindrical flanges and a spool which includes at least one straight cylindrical flow channel.  A geometrical butt-joint is avoided in both rotary positions of the spool thereby obviating reworking of the housing and/or spool.  The cross-section of the flow path is kept constant when the circumferential surface of the spool and the housing inner surface are constructed as parallel freeform surfaces having such a curvature that the mouths of the flow channel and the mouths of the flanges in the inner surface of the housing are non-overlapping (congruent) sectional planes in both rotary positions of the spool.  The valve is more economically manufactured, since reworking of the housing and spool is obviated and the spool can be made as a one-piece casting.
Patent CA-2068156-A1 (CA)
Inventor: NAYER WOLFGANG
IPC: B61L5/10
Filed: 1992-05-07
Abstract: In a method for monitoring the condition of rail switch points and for detection of premature abrasive wear-and-tear in the region of the tongue switching rail (3) of the points, the signals from at least one proximity sensor (2) in the region of the tongue switching rail (3) of the points during the time of travelling over them are evaluated, in which case the smallest measured value ofthe separation distance (1) during the travel is stored in memory, the alteration of the smallest measured value, as well as at least a first limiting value for the smallest separation distance are compared with one another and in that, when this first limiting value is exceeded, a warning signal is generated.
Patent CA-2068454-A1 (CA)
Title: Engine exhaust system for reduction of hydrocarbon emissions
Inventor: DAY JOHN P
IPC: F01N3/28
Filed: 1992-05-12
Abstract: ENGINE EXHAUST SYSTEM FOR REDUCTION               OF HYDROCARBON EMISSIONS               Abstract of the Disclosure An engine exhaust system disclosed which is designed to reduce hydrocarbon emissions caused by the evaporation of fuel from the fuel tank and by the inefficiency of combustion and catalytic conversion during cold engine start-up.  This system utilizes molecular sieves, such as high-silica zeolites, which adsorb hydrocarbons evaporating from the fuel tank or emitted during engine start-up, before the catalytic converter has attained an effective operating temperature.  This system is designed so that hydrocarbons that would otherwise be emitted to the atmo-sphere from the fuel tank or by passing through the con-verter unconverted are held within the system either for combustion in the engine or passage through the converter once it is operating efficiently.
Patent CA-2069242-A1 (CA)
Title: Optical switch
Inventor: DORN REIMUND
IPC: G02F1/21
Filed: 1992-05-22
Abstract: An optical switch serves the purpose of relaying in a specific, selected direction a wavetrain irradiated onto it. Suitable as part of an optical switch is a light-transmitting material in which by applying an electrical field a three-dimensional diffraction structure is generated by means of which the direction of the wavetrain can be varied. An optical switch according to the invention has a material with optically nonlinear characteristics, in which the three-dimensional diffraction structure is stored. The material forms at least one single layer (2) which extends above a substrate (1). Electrodes (3 - 6) are present; the diffraction structure in the layer (2) can be varied by an electrical field which can be applied to the electrodes. A portion of the wavetrain irradiated onto the layer (2) is consequently deflected in accordance with the strength of the electrical field present between the electrodes (3 - 6). <IMAGE>
Patent CA-2069805-A1 (CA)
Title: Television signal level meter
Inventor: YOKOYAMA ITOSHI
IPC: G01R31/00
Filed: 1992-05-28
Abstract: A television signal level meter is provided which is capable of simultaneously displaying levels for a multitude of television channels in a scale having a variable dynamic range. The television meter includes a level image forming means for displaying signal levels of a multitude of channels, a scale forming means for forming a scale suitable for simultaneously displaying the signal levels of the channels, and an image forming means for displaying channel numbers associated with the channels.
Patent CA-2070139-A1 (CA)
Title: Substrate having a smooth nonabrasive antislip coating
Inventor: KRONZER FRANCIS J
IPC: C08J9/32
Filed: 1992-06-01
Abstract: Abstract An article of manufacture consisting of a substrate having a smooth nonabrasive antislip coating on part or all of a surface thereof, which coating is composed of from about 80 to about 99 percent by weight, based on the weight of the coating, of a binder having a glass transition temper-ature no lower than about -30°C and from about 1 to about 20 percent by weight, based on the weight of the coating, of thermally expanded micro-beads having particle sizes before expansion in the range o-f from about 5 to about 30 µm. The coating has a dry static coefficient of friction, when tested in accordance with ASTM Method 1894 against an aluminum plate having an anodized surface with a roughness of less than about 32 micro-nches (abuut 0.8 µm), of at least about 0.6; and a dry dynamic coefficient of friction, when tested in like manner, of at least about 0.8. The substrate can be paper, film, or a woven or nonwoven fabric.
Patent CA-2070454-A1 (CA)
Inventor: KRAMER PAUL W
IPC: B01D67/00
Filed: 1992-06-04
Abstract: ABSTRACT Glassy polymeric gas separation membranes are chemically modified throughout the thickness thereof. Such membranes manifest selectivity for a pair of gases which is greater than the intrinsic selectivity of the glassy polymeric material and which is greater than the equilibrium intrinsic selectivity of the chemically modified glassy polymeric material.
Patent CA-2074146-A1 (CA)
Title: Blood collecting and filtering apparatus
Inventor: ROCHAT JEAN-DENIS
IPC: A61M1/02
Filed: 1992-07-17
Abstract: ABSTRACT     The blood collecting and filtering apparatus according to the invention comprises a container (1) defining with a removably fixed cover (2) a tightly closed enclosure. The cover (2) is provided with an adjustable device (6) for the connection to a reduce pressure system and has a tra-versing opening (4). A filtration disposable flexible bag (10) is disposed in service position inside said enclo-sure, said bag having two internal rooms (13,14) separated the one from the other by a filtering wall (12). The first room (13) is connected to the outside by an inlet pipe (15) fed with the blood to be treated and the second room (14) is connected to the outside by an outlet pipe (16) of the filtered blood and has an opening which is closed by an element (17) made of a material which is permeable to the air and impervious to the liquids. Both intake (15) respectively outgoing (16) pipes are passing in a tight manner through a plug (21) closing in service position the traversing opening (4) of the cover (2).
Patent CA-2074159-A1 (CA)
Inventor: FURUKAWA JUN
IPC: H01M10/34
Filed: 1992-07-17
Abstract: The invention reduces the number of cycles of charge-discharge operation required in the formation process involved in manufacturing of a sealed type nickel-hydrogen cell having a large high-rate discharge capacity.  In the formation process, a sealed type nickel-hydrogen cell is subjected to at least one cycle of charge-discharge operation and thereafter kept at a temperature in the range of about 30°C to 60°C for a predetermined length of time.
Patent CA-2074727-A1 (CA)
Title: Indole derivatives, their preparation and use
Inventor: JEPPESEN LONE
IPC: C07D491/18
Filed: 1991-02-13
Abstract: Indole derivatives of formula (I), wherein R1, R2, R3 and R4 may be hydrogen or lower alkyl optionally substitued by halogen; A1 represents a straight or branched alkylene chain containing from 2 to 4 carbon atoms; R5 is hydrogen or a straight or branched alkyl group; A2 is a straight or branched, saturated or unsaturated hydrocarbon chain containing from 2 to 6 carbon atoms; and R6 is selected from a group consisting of various structures, have been found to exhibit central nervous system activities.
Patent CA-2075185-A1 (CA)
Title: Intumescent fire protection compositions
Inventor: DEOGON MALKIT S
IPC: C09K21/02
Filed: 1991-01-31
Abstract: 2075185 9111498 PCTABScor01 The combination of comparatively small amounts (e.g. 3-20 wt %) of exfoliable laminar minerals such as expandable graphite with one or more binders and one or more of a range of intumescent char-forming materials such as carbonifics, acids and acid-yielding catalysts, blowing agents, char-formers and stabilisers gives novel fireproofing materials having beneficial properties such as ease of application and enhanced weathering properties of coatings formed therefrom, together with improved expansive pressure, degree of expansion and char strength under fire conditions.