baber/WOPTO huggingface dataset:
Patent CA-2079371-C (CA)
Inventor: DUPERRAY GERARD
IPC: C01G15/00
Filed: 1992-09-29
Granted: 1999-07-20
Abstract: Procédé de contrôle pour l'élaboration d'un matériau supraconducteur à haute température critique, caractérisé par le fait que l'on part d'un mélange de poudres des précurseurs du matériau avec la stoechiométrie de la phase supraconductrice souhaitée, on agglomère le mélange pour former une pièce tubulaire ou cylindrique, on place la pièce agglomérée dans un four à atmosphère contrôlée pour réaliser la synthèse de la phase supraconductrice, on mesure de manière continue la conductivité de la pièce, on dépasse la température pour laquelle la conductivité amorce une décroissance puis on revient à une valeur où la conductivité recommence à croître, et on règle en permanence la température du four de manière à contrôler la conductivité (courbe C1).
Patent CA-2079948-C (CA)
Title: Safety latch for a tire carrier and improvements therefor
Inventor: GREAVES JEFFREY
IPC: B62D43/04
Filed: 1992-10-06
Granted: 1998-07-14
Abstract: This invention provides a safety mechanism for a winch assembly when storing a load, such as a tire under a vehicle or a boat on a trailer,  in a raised or stored position.  The invention finds particular application to a spare tire,  but those skilled in the art will appreciate the broader benefits of such a structure when used with a winch assembly for other uses such as a boat winch for a trailer or any analogous use wherein it  is desirable to secure a load in the raised or stored position.         A unique actuator is described with an improvement of the  invention,  which includes  a  control path therewith to control a rod end and thereby actuates in a preferred embodiment a latch by converting rotary motion to linear motion.
Patent CA-2081721-C (CA)
Title: Temperature self regulating heaters and soldering irons
Inventor: COWELL MARK J
IPC: B23K3/03
Filed: 1992-10-29
Granted: 2000-01-11
Abstract: A Curie point heater primarily for use in a soldering iron and initially designed to operate with currents in the megahertz range is restructured to operate in the kilohertz range. Further in one embodiment of the heater, the coil exciting the heater is mounted in the handle of the iron.
Patent CA-2083177-C (CA)
Title: Alveolar surfactant proteins
Inventor: BENSON BRADLEY J
IPC: C12N15/85
Filed: 1991-05-17
Granted: 2002-02-26
Abstract: Various specific human SP-18 and human SP-5 derived peptides have alveolar surfactant protein (ASP) activity. These peptides are prepared using synthetic methods or by recombinant techniques.
Patent CA-2091168-C (CA)
Title: Container for refrigerated dough and method of forming a refrigerated dough product
Inventor: MCDILDA JOSEPH C
IPC: B31B50/59
Filed: 1992-01-03
Granted: 1995-05-30
Abstract: A container (20) for vacuum packing refrigerated dough (18) and amethod of forming a refrigerated dough product is disclosed. A method of forming a refrigerated dough product using a spiral wound composite container (20) of the present invention is also disclosed.
Patent CA-2092159-C (CA)
Title: Process for improving the adhesiveness of electrolessly deposited metal films
Inventor: GIESECKE HENNING
IPC: C23C18/30
Filed: 1993-03-22
Granted: 2004-01-27
Abstract: Electrolessly deposited metal films having improved adhesion can be obtained by coating the surface of the substrates to be metallised with a formulation con-sisting of UV-curable varnishes which contain noble metal compounds as activators and, in addition, either fillers or solvents or a combination of fillers and solvents, curing these varnishes by means of UV radiation, followed by electroless metallisation of the substrates thus treated.
Patent CA-2093466-C (CA)
Title: Method and apparatus for variable speed control of oil well pumping units
Inventor: BOONE JAMES R
IPC: E21B43/12
Filed: 1993-04-06
Granted: 1998-09-22
Abstract: A method and apparatus for varying the speed of operations of an oil well pumping unit powered by a motor  wherein  variations  in  oil  viscosity may  be efficiently accommodated.   An oil well pumping unit which includes a submersible pump actuated by means of a reciprocating string of sucker rods is monitored for both rod position and load present on the sucker rods. The oil well pumping unit is driven by an electric or gas motor through a controllable coupling and the speed of the oil well pumping unit is then varied, utilizing the controllable coupling, in response to variations in sucker rod load.  As the lowering of the sucker rod is impeded by high viscosity oil, the load on the sucker rod decreases.   This decrease in sucker rod load is utilized to decrease the speed of the oil well pumping unit by means of the controllable coupling to ensure that bridle separation does not occur.   Additionally, increases  in  sucker  rod load  above  a  preselected maximum may also be detected and utilized to slow the operation  of  the  oil well  pumping  unit  to  prevent damage to the sucker rods.
Patent CA-2093801-C (CA)
Title: Signal coding
Inventor: BEAUMONT DAVID OWEN
IPC: H04N7/30
Filed: 1991-10-15
Granted: 1997-12-23
Abstract: A method of coding a video signal for transmission is described which comprises coding data representing the video signal by a base layer coding operation which includes base layer quantizer having a base layer quantization step size to provide coded video data for transmission; deriving inverse-coded video data by carrying out an inverse base layer coding operation on the coded video data; deriving difference data from the data representing the video signal and the inverse coded video data; and coding the difference data by an enhancement layer coding operation only when the energy of the difference data exceeds a variable threshold, the threshold being inversely proportional to the base layer quantization step size.
Patent CA-2096361-C (CA)
Title: Manually adjustable forced air-flow deflector
Inventor: REICHERT GOTTFRIED
IPC: F24F13/08
Filed: 1993-05-17
Granted: 1996-02-20
Abstract: A manually adjustable forced air-flow deflector for use on a register of a forced air heating system, is disclosed. The forced air-flow deflector comprises a back plate having a first end and a second end, with the first and second end plates secured to the respective first and second end of the back plate so as to project forwardly in generally transverse relation with respect to the back plate. A movable air-flow guiding plate and retaining means therefor, are provided. The movable air-flow guiding plate is retained in selectively movable relation by a retaining means comprising a first, second and third pairs of directly opposed grooves disposed one in each of the end plates. The first pair of grooves retains the air-flow guiding plate in generally upstanding relation at the front of the end plates. The second pair of grooves retains the air-flow guiding plate at a central portion of the end plates in angled relation, upwardly directed away from the back plate. The third pair of grooves retains the air-flow guiding plate in generally horizontal relation at the top of the end plates.
Patent CA-2096711-C (CA)
Title: Apparatus and method for inserting cylindrically shaped food product into container
Inventor: RASMUSSEN GLENN O
IPC: B65B5/04
Filed: 1993-05-20
Granted: 1998-12-15
Abstract: ABSTRACT OF THE DISCLOSURE             A device for loading dough into cylindrical containers is disclosed. A first conveyor is provided which delivers a plurality of cylindrical containers to a receiving surface which is declining with respect to the horizontal. The containers are oriented such that a central cylindrical axis of each container is substantially parallel to the container receiving surface as the containers approach the container receiving surface. A second conveyor then delivers a cylindrical object to the receiving surface in a direction that is substantially perpendicular to path of the containers in the first conveyor as the objects approach the container receiving surface. The second conveyor aligns the cylindrical objects and causes the objects to be inserted into the cylindrical container. Means for positioning the container on the container receiving surface and for releasing the cylindrical containers after filling is also provided. A method of inserting cylindrical objects into cylindrical containers is also disclosed.
Patent CA-2104508-C (CA)
Title: Improved method for nucleic acid amplification
Inventor: KIEVITS TIM
IPC: C12Q1/6865
Filed: 1993-08-20
Granted: 2006-10-24
Abstract: The present invention relates to an improved method for the amplification of nucleic acid.      The invention is characterized in that ribonucleotides are introduced during amplification that weaken normal basepairing. Preferably the ribonucleotides are inosine-triphosphate nucleotides which partly substitute guanine-triphosphate nucleotides normally present in the amplification reaction mixture. The incorporation of nucleotides, during amplification, that weaken normal base pairing prevents the formation of secondary structures in the amplificate. The efficiency of the amplification is thereby increased. The introduction, during amplification, of nucleotides that weaken normal base pairing also results in an improved sensitivity during detection of the amplified nucleic acid, when the detection method comprises the hybridization of the amplified nucleic acid to a complementary sequence.
Patent CA-2105563-C (CA)
Inventor: SCHAEFER LOUIS F
IPC: H04N5/926
Filed: 1992-12-23
Granted: 2002-07-16
Abstract: Digital video information recorded on a recording medium is read from the medium by scanning a fraction of a video signal field stored on the recording medium during a scan cycle over the recording medium, reading data during the scan cycle, which data includes video signal information and video signal identification information, and storing at least a portion of the video signal information in a field memory at a location identified by the video signal identification information.
Patent CA-2110033-C (CA)
Title: Thickened aqueous cleaning compositions and methods of use
Inventor: CHOY CLEMENT K
IPC: C11D3/20
Filed: 1992-10-21
Granted: 1997-08-26
Abstract: Aqueous cleaning compositions and methods of use are disclosed with a thickening agent including an alkyl ether sulfate surfactant forming about 0.1 to about 10 % by wt. of the composition, a solvent selected from the class consisting of terpene derivatives including a functional group and tertiary alcohols forming about 0.01 to about 10 % by wt. of the composition and an electrolyte component in an amount effective for enhancing thickening effects of the alkyl ether sulfate surfactant and solvent. The electrolyte component preferably includes a hypochlorite of an alkali metal and more preferably at least one additional multivalent electrolyte, the additional multivalent electrolyte most preferably being sodium carbomate. With the electrolyte component including a hypochlorite, additional electrolytes and the solvent are selected to be bleach stable, the solvent also preferably being a fragrance for the composition.
Patent CA-2112570-C (CA)
Inventor: GENERO CLAUDE PAUL
IPC: A01M1/20
Filed: 1992-07-10
Granted: 2002-07-23
Abstract: An insect feeding station (10) for administering a fluent substance such as a poisonous liquid bait to ants and other insects. The feeding station (10) comprises a housing (11) having an interior region (21) adapted to contain the fluent substance. The housing (10) has an opening (27) through which insects can enter and leave the interior region (21), and an internal structure (43) within the interior region (21) for facilitating access by the insects to the substance. The internal structure (43) may take various forms but typically is of a construction which is adapted to at least be partially covered by the substance when the latter is first introduced into the interior region (21) and which is progressibely exposed as the substance is consumed. With this arrangement, the portion of the internal structure which is exposed provides a zone away from the liquid bait for supporting the bodies of dead insects. Thus the bodies are "dry-docked" on the internal structure from where they can be retrieved.
Patent CA-2114058-C (CA)
Inventor: HOLLAND DEWEY T
IPC: B60S1/38
Filed: 1994-01-24
Granted: 1999-10-19
Abstract: The present invention is a heated wiper blade comprising an elongated blade and a heating element connected to the electrical system of a vehicle. The heating element utilises a material with a positive temperature coefficient of resistance placed between a pair of conductive members. The conductive members span the length of the heating element to provide a uniform distribution of heat through the length of the blade.      Electrical connections to the heating element are preferably located at one end of the blade. The heating element can be located inside the blade or between a semi-rigid attachment member and an upper surface of the blade.
Patent CA-2117580-C (CA)
Inventor: SU WEI-YANG
IPC: C07B61/00
Filed: 1994-08-24
Granted: 1999-11-02
Abstract: The present invention relates to a process for the reduction of the color of polyamines by reacting at elevated temperature, e.g. 120-170°C.,and pressure, e.g. 500 to 6000 psig. the colored polyamines, e.g. triethylenetetramine and tetraethylelepentamine, in the presence of a cobalt on alumina hydrogenation catalyst promoted with copper and chromium. In the process of the present invention, the polyamines can either be distilled into a narrow product composition and then hydrogenated, or a crude polyamine product can be hydrogenated and then distilled to produce the desired product composition.
Patent CA-2118282-C (CA)
Title: Process for the preparation of 2,4-di(alkylamino)-6-alkylthio-s-triazines
Inventor: GRACE HENRY C
IPC: C07B61/00
Filed: 1994-10-17
Granted: 2005-12-06
Abstract: An improved process for the preparation of 2,4-di(alkylamino)-6-alkylthio-s-triazines wherein cyanuric chloride is reacted in successive steps with two appropriate alkylamines and an alkyl mercaptan is described where the improvement involves use of a single water-immiscible solvent and a phase transfer catalyst in the mercaptan addition step.
Patent CA-2121448-C (CA)
Title: Antenna switched diversity receiver
Inventor: TAKAI HITOSHI
IPC: H04B7/08
Filed: 1994-04-15
Granted: 2002-05-07
Abstract: The present invention discloses an antenna switched diversity receiver comprising a plurality of physically separated antennas, a switching unit for selectively switching to one of the plurality of antennas to receive a burst in a time series, a decoding unit for decoding transmission data contained in the received burst in a reversed manner to coding, a bit-error-detecting unit for detecting a bit error in decoded data in each received burst, and a control unit for controlling the switching unit in accordance with the bit-error detection result. The receiver may additionally include a RSSI checking unit for checking a RSSI of a switched antenna and a RSSI holding unit for holding a RSSI. The receiver constructed as above controls switching based on a bit error in each burst alone or together with the RSSI. As a result, the receiver obtains excellent diversity effect while being compact and economical.
Patent CA-2128803-C (CA)
Title: Fold-up bathtub
Inventor: CROSSLEY DAVID W
IPC: A47K3/064
Filed: 1994-07-26
Granted: 2004-02-10
Abstract: A baby bathtub having a base with reservoir therein in which the baby is supported and an outwardly extending headrest and leg rest that support the baby's head and legs when the baby is in the reservoir. The headrest and leg rest are pivotally connected to the base so that they can move from the extended operative positions to a rectracted position over the base for convenient storage or toting of the bathtub.
Patent CA-2131743-C (CA)
Title: Plural service rate sensitivity control valve
Inventor: LISTL HEINZ-JUERGEN
IPC: B60T15/42
Filed: 1994-09-09
Granted: 1997-08-26
Abstract: A control valve having, in series with a first inlet valve of a quick brake volume, two different rates of flow restrictions operable as a function of the position of the piston. The first flow rate of one first restriction is insufficient to cause the piston to assume a braking position for applying a minimum service application for a first range of piston positions which would generally be produced by the mechanical vibration. The second restriction has a greater flow and will accelerate the piston to a braking position for a second range of piston positions which will be produced by the reduction of the brake pipe pressure on one face of the piston. By providing two flow rates, the valve becomes insensitive to mechanically produced forces while maintaining the reaction time of the valve to fluidically produced reduction of brake pipe pressure.
Patent CA-2138006-C (CA)
Title: Resin coated fastener and apparatus and method for manufacture of same
Inventor: DUFFY RICHARD J
IPC: B05B7/14
Filed: 1994-12-13
Granted: 2000-07-04
Abstract: An apparatus and method for applying a resin coating to a plurality of discrete portions of a fastener, such as both internal and external threads. A conveyor supports a fastener. The fastener is first transported past a heater and then past a first powdered resin spray assembly. Powdered resin, supplied to the first spray assembly by a resin reservoir, is used to generate a first air-borne powdered resin stream which coats one set of threads with resin when the fastener traverses the resin stream.      The conveyor also transports a second resin spray assembly through the first air-borne powdered resin stream. The second spray assembly uses a resin receiver to aspirate the air-borne resin. The resin is then used to generate a second powdered resin stream which coats the other set of fastener threads.
Patent CA-2140515-C (CA)
Inventor: EAVENSON JIMMY NELSON SR
IPC: H02J7/14
Filed: 1995-01-18
Granted: 1997-01-14
Abstract: A charging system includes a high capacity charging circuit having the original internal engine alternator connected substantially in parallel with an auxiliary alternator by a simple wiring harness arrangement that easily plugs into the existing connectors for the internal engine alternator circuit so that the outputs of the alternators are cumulative.  The auxiliary alternator is relatively compact, and the original engine alternator circuit remains substantially unaltered.  The regulators for the two alternators include sensory inputs which are connected to each other.  The alternators provide redundancy and a fail-safe backup mode so that if one of the systems fails, that system can be quickly disconnected from the remaining system without disabling the entire vehicle.
Patent CA-2141315-C (CA)
Title: Methode pour determiner l'induction remanente dans une machine a induction a cage dote d'un inverseur
Inventor: POHJALAINEN PASI
IPC: H02P21/34
Filed: 1993-07-01
Granted: 2000-10-10
Abstract: L'invention se rapporte à un procédé pour déterminer la vitesse de rotation, la grandeur et la direction instantanée d'un flux résiduel d'une machine à induction à cage d'écureuil alimentée par onduleur, en vue de faire démarrer la machine à induction à cage d'écureuil lorsqu'il y a un flux résiduel de rotation (PSIs) dans la machine (1) et que l'inductance de fuite totale (sigmaLs) de la machine est connue. Selon la présente invention, on prend diverses mesures, le procédé décrit consistant à court-circuiter les enroulements du stator; à mesurer un premier vecteur de courant de stator (is1) et a commuter en postion d'arrêt le circuit du stator à la fin d'une première période (T1); à court-circuiter les enroulements du stator une fois de plus après une seconde période (T2) à partir de la fin de la première période (T1); à mesurer un second vecteur de courant de stator (is2) et à commuter en position d'arrêt le circuit du stator après un temps identique à la première période (T1) à partir du second court-circuitage; à déterminer la fréquence (PSIs) du flux résiduel (omegas) sur la base des directions des premier et second vecteurs de courant de stator (is1, is2) et des durées des première et seconde périodes; à déterminer la grandeur d'une valeur absolue (]PSIs]) du flux résiduel sur la base de l'inductance de fuite totale (sigmaLs) de la machine à induction à cage d'écureuil et sur la base du premier ou du second vecteur de courant de stator (is1, is2); et à déterminer la direction instantanée du flux résiduel (PSIs) sur la base de la direction du premier ou du second vecteur de courant de stator (is1, is2).
Patent CA-2146704-C (CA)
Title: Gas-liquid contacting tray with side discharging triangular downcomers
Inventor: RESETARITS MICHAEL R
IPC: B01D3/16
Filed: 1995-04-10
Granted: 2005-09-20
Abstract: High capacity, low cost gas-liquid contacting trays comprise a flat perforated decking surface sectioned into parallel contacting areas by triangular downcomers.      The bottom edges of two inclined sidewalls join together to form V-shaped downcomers having a limited number of perforations in their sidewalls to allow downward liquid passage. An imperforate zone is present in the central region of each sidewall. A layer of packing material may be provided close to or adjacent the bottom surface of the tray. The packing is located in the disengagement zone under the tray but does not extend downward to the next tray below.
Patent CA-2147606-C (CA)
Title: Stable extended release oral dosage composition
Inventor: KWAN HENRY K
IPC: A61P27/16
Filed: 1993-10-21
Granted: 2000-10-10
Abstract: A film-coated extended release oral dosage composition containing the nasal decongestant pseudoephedrine or salt there-of, e.g., pseudoephedrine sulfate in a unique polymer matrix core and a film-coating on such core containing the non-sedating antihistamine, loratadine, and use of the said composition for treating patients showing the signs and symptoms associated with upper respiratory diseases and nasal congestion are disclosed.
Patent CA-2153955-C (CA)
Inventor: MOSES JOHN
IPC: B66F9/065
Filed: 1995-07-14
Granted: 2005-01-11
Abstract: A material-handling vehicle comprising a structure having ground engageable propulsion means, a loader arm, having a longitudinal axis, mounted at the rear of the structure for up and down swinging movement, an operator's cab disposed on the structure on one side of the loader arm longitudinal axis and an engine mounted on the structure to provide power for said swinging movement of the arm and propulsion of the vehicle, wherein the engine is located on one side of the loader arm longitudinal axis and the engine has an output shaft and the engine is transversely disposed with its output shaft transverse to the vehicle.
Patent CA-2156486-C (CA)
Title: Mucosal competitive exclusion flora
Inventor: STERN NORMAN J
IPC: A01N63/00
Filed: 1994-03-16
Granted: 2002-11-12
Abstract: A preparation effective for reducing colonization by human enteropathogenic bacteria in poultry is prepared from cultures of mucosa-associated flora obtained from caeca of mature birds and is referred to as mucosal competitive exclusion (MOE). The preparation is especially effective for both Salmonella and Campylobacter spp. Administration of the novel MCE preparation to newly-hatched or hatching birds provides substantial protection against both microorganisms and results in the diminished presence of both in processed poultry products.