baber/WOPTO huggingface dataset:
Patent CA-2013210-C (CA)
Title: Moldable low density thermoplastic composite with hollow glass spheres and the method for compounding
Inventor: ECKSTEIN YONA
IPC: C08K7/28
Filed: 1990-03-28
Granted: 2000-01-25
Abstract: An improved moldable low density thermoplastic composite containing hollow glass spheres comprising a blend of thermoplastic resin, glass fiber reinforcement, and a concentrate of hollow glass spheres dispersed in thermoplastic resin.
Patent CA-2017053-C (CA)
Title: Flexible polyurethane foams and process for preparing them
Inventor: GALLO BRUNO
IPC: C08J9/02
Filed: 1990-05-17
Granted: 1995-12-19
Abstract: Flexible   polyurethane  foams  having  bulk  densities comprised within the range of from 15 to 60 kg/m3 and a load bearing capacity, under a compression rate of 40%, higher than N,  obtained  by  means of the reaction  of  a  modified polyisocyanate with a compound containing activated hydrogen atoms  in chain-end position,  and wherein agents  different from chloro-fluoroalkanes are used as the foaming agent.
Patent CA-2018318-C (CA)
Title: Device for securing in position guide rails
Inventor: FRITZ DIETER
IPC: E01B7/20
Filed: 1990-06-05
Granted: 1998-09-15
Abstract: The invention provides a device for securing a guide rail in position adjacent and parallel to a main rail of a railroad track.  The device comprises a guide rail which is free from perforations and a mounting part having a mounting plate.  The mounting plate has a first side and a second side, with at least one perforation formed therethrough.  It is positioned such that it extends in a direction substantially parallel to the longitudinal direction of the rails, and such that the rails are positioned on that first side of the plate.  At least one claw secures the guide rail against the first side of the mounting plate, and extends through the perforation to contact the guide rail on that first side of the mounting plate.  A free end of the claw remains on the second side of the mounting plate.  A bracing member is disposed against the second side of the mounting plate for bracing the claw against the second side of the mounting plate, and retaining means contact the claw at the free end and cooperate with the bracing means to prevent movement of the claw.  Preferably the bracing member can be a spring.
Patent CA-2018586-C (CA)
Title: Method and apparatus for photometric determination of the properties of individual pieces of meat
Inventor: ANDERSEN JAN RUD
IPC: G01N21/27
Filed: 1990-06-08
Granted: 1996-04-02
Abstract: Method for photometric determination of the concentration of a substance of individual pieces of meat, such as the pigment and protein content of meat, by which the optical properties of the meat are  measured by means of an optical probe and the obtained results are put into an algorithm.            The method comprises the steps of registration of the optical values ina series of different wavelengths, e.g. 32, which comprises a continuous wavelength range or a spectrum,  insertion of the obtained values as variables  in  a  multi-variable  algorithm  and  calculation  of  the concentration value.            The method may be applied to pieces of meat which are conveyed on a slaughter line. It is quick and so accurate that the pieces of meat may be graded immediately in accordance with the determined concentration of the substance.
Patent CA-2020012-C (CA)
Title: A process for the selective hydrogenation of olefins containing nitrile groups
Inventor: HIMMLER THOMAS
IPC: C08C19/02
Filed: 1990-06-27
Granted: 2000-06-13
Abstract: The hydrogenation of olefins containing nitrile groups in the homogeneous phase can be carried out particularly successfully using specific ruthenium complexes which are non-sensitive to air and have high catalytic activity.
Patent CA-2026605-C (CA)
Title: Multi-level interconnection cmos devices including sog
Inventor: OUELLET LUC
IPC: H01L21/28
Filed: 1990-10-01
Granted: 2001-07-17
Abstract: A method of manufacturing a semiconductor wafer, comprises performing a first metallization to deposit a first layer of interconnect material on a substrate, etching the interconnect material to form interconnect tracks, depositing a first low temperature dielectric layer over the interconnect tracks, planarizing the first low temperature dielectric layer with quasi-inorganic or inorganic spin-on glass by a non-etchback process, depositing a second low temperature dielectric layer over the spin-on glass, etching via holes through the dielectric and spin-on galss layers to reach the tracks of the first interconnect layer, performing an in-situ desorption of physically and chemically bonded water vapour in a dry environment at a temperature of at least 400°C and not more than 550°C for a time sufficient to obtain a negligible desorption rate, the temperature exceeding by at least 25°C the temperature to which the surface of the wafer will be exposed during a subsequent metallization step, and performing the subsequent metallization step to deposit a second interconnect layer extending through the via holes to the first interconnect tracks without re-exposure of the wafer to ambient conditions, and keeping this wafer under vacuum. This technique permits the reliable use of inorganic or quasi-inorganic spin-on glasses in non batch type sputtering equipment.
Patent CA-2027736-C (CA)
Title: Treatment of male hormone related diseases by cyclodextrins and their derivatives
Inventor: UENO RYUJI
IPC: A61K31/715
Filed: 1990-10-16
Granted: 2000-03-21
Abstract: The present invention is directed to a pharmaceutical composition for the treatment of diseases having an etiology based on or accompanied by excess male hormone. The pharmaceutical composition comprises a cyclodextrin or derivative thereof in association with a pharmaceutically acceptable carrier, diluent or excipient.
Patent CA-2028289-C (CA)
Title: Synthesizer for sounds in response to three dimensional displacement of a body
Inventor: BAUER WILL
IPC: G10H1/00
Filed: 1990-10-23
Granted: 1995-11-14
Abstract: A system is provided for tracking the three dimensional position of an article for example an article carried by a part of the human body within a three-dimensional region by triangulation techniques to generate signals corresponding to such three dimensional positions.  The signals may be used to drive a music synthesizer.  The triangulation means may comprise at least three ultrasound emitters cooperating with ultrasound receivers located on a body moving in the three dimensional region.  A sound map may be made of the region so the region so that similar signals may drive the synthesizer differently for different sub-regions. Movements of the article may be converted to music by this means.
Patent CA-2034033-C (CA)
Title: Transmission apparatus
Inventor: KANNO IPPEI
IPC: H04N7/015
Filed: 1991-01-11
Granted: 1994-11-15
Abstract: Satellite transmission sometimes uses a method of modulating by a sub signal a subcarrier with a frequency set higher than that of a main signal and subjecting the main carrier to frequency modulation by the resulting baseband signal.  This method is, however, accompanied by a problem of the occurrence of crosstalk from the main signal to the sub signal.  This is attributable to the limited band width of the main carrier on the transmission line, allowing a correction signal equal in magnitude but negative in phase to the crosstalk to be easily prepared on the basis of the transmission line amplitude and group-delay frequency responses and the main signal.  The crosstalk may be improved if this correction signal is prepared from the main signal on the transmitting side and added to the sub signal to be transmitted or if the correction signal is prepared from the demodulated main signal on the receiving side and added to the demodulated sub signal.
Patent CA-2034104-C (CA)
Title: Welding gun assembly and fluid actuated cylinder
Inventor: WARD ALLAN
IPC: B23K11/11
Filed: 1991-01-14
Granted: 1994-11-01
Abstract: An apparatus for applying a force to a workpiece as required in welding or clamping. The apparatus applies a force to the workpiece through a direct clamping action or through link enhanced scissor type action that increases the mechanical force supplied by a fluid driven cylinder. The fluid driven cylinder has piston rods at both ends of an elongated external housing. The fluid driven cylinder is supported at one end by an attachment to the end of one piston rod and is supported at the other end by an attachment to the external housing. A plurality of pistons permit the piston rods to move relative to one another and also relative to the external housing. The entire fluid driven cylinder can rotate and translate.
Patent CA-2047037-C (CA)
Title: Surround sound effect control device
Inventor: SHIMIZU YOSHIKAZU
IPC: H04N5/60
Filed: 1991-07-15
Granted: 1997-02-04
Abstract: A surround sound effect control device includes a plurality of sound signal sources each for producing a sound signal.  A sound source selection signal generator produces a sound source selection signal indicative of one sound source.  A plurality of surround effect circuits are provided for modifying the sound signal.  A memory is provided for storing data identifying one such circuit corresponding to each of the sound sources.  A first switching arrangement selects one of the sound sources in response to the sound source selection signal, and a second switching arrangement selects one surround effect circuit in response to data read from the memory means.
Patent CA-2052864-C (CA)
Inventor: STOLKA MILAN
IPC: C08K5/18
Filed: 1991-10-07
Granted: 1999-10-05
Abstract: A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of a mixture of a bipheny diamine and a polysilylene. The mixture may be comprised of from 10 to 75% by weight of the bipheny diamine and from 90 to 25% by weight of the polysilylene, and the bipheny diamine may be N,N'-bis(4-methylphenyl)-N,N'-bis(4-ethylphenyl)-[1,1'-(3,3'-dimethyl)biphenyl]-4,4'-diamine.      The photogenerating layer pigment can be selected from the group consisting of metal free phthalocyanines, metal phthalocyanines, vanadyl phthalocyanines, titanyl phthalocyanines, selenium and selenium alloys.
Patent CA-2055442-C (CA)
Title: Enzymes and their use in drug detection
Inventor: BRUCE NEIL C
IPC: C12N1/20
Filed: 1990-05-11
Granted: 1999-06-15
Abstract: Two enzymes, one an acetylmorphine carboxyesterase (AMCE), the other a morphine dehydrogenase (MDH), have been isolated from bacteria. The AMCE degrades heroin to morphine and the MDH oxidises morphine to morphinone, with the aid of a cofactor. These reactions are used in detection of heroin (using the two reactions coupled together) or morphine. The enzymes can be incorporated in sensors for this purpose.
Patent CA-2055847-C (CA)
Title: Decision feedback equalizer
Inventor: MIZOGUCHI SHOICHI
IPC: H03H21/00
Filed: 1991-11-19
Granted: 1995-11-28
Abstract: A decision feedback equalizer for equalizing a received analog baseband signal (1) has a gain control circuit (11) which compresses the amplitude of the baseband signal (1) to 1/K (K ? 1).  The compressed signal is converted to a digital signal by an analog-to-digital converter (12).  A decision feedback equalizer section (101) has a feedforward equalizer (201) to which the digital signal is applied, a feedback equalizer (202), and an adder (13) for adding the outputs of the feedforward and feedback equalizers.          A postprocessor (15) discriminates the adder output (S1') which has been multiplied by K to thereby output a received data signal (d) and a discrimination error signal (e).  An expansive decision circuit (104) expands the adder output by L times (L > 1), discriminates the expanded signal, and delivers the result of discrimination to the feedback equalizer (202).  A control signal generator (102) feeds tap coefficients to the feedforward and feedback equalizers.
Patent CA-2067752-C (CA)
Title: Battery pack including electronic power saver
Inventor: KOENCK STEVEN E
IPC: H01M50/284
Filed: 1990-11-05
Granted: 2000-01-25
Abstract: A housing (11) of a battery pack (10) contains in addition to standard power cell elements (14-16) a voltage converter (75). The voltage converter (75) is interposed between the power cell elements (1416) and external output contacts (29, 30, 100) of the housing (11). The voltage converter (75) regulates the output voltage applied to the output contacts (29, 30, 100) of the battery pack (10), such that the supply voltage of the battery pack (10) remains at a predetermined value which is independent of the voltage supplied by the power cell elements (14-16) to the voltage converter (75) and does not vary over the discharge cycle of the power cell elements (14-16). Excess battery voltage available particularly during the initial portion of the discharge cycle of the power cell elements (14 - 16) is efficiently converted to the predetermined output voltage value which reduces the overall current delivered by the power cells (14-l6) to extend the useful life of the battery pack (10) between charges.
Patent CA-2070835-C (CA)
Title: Thin flexible sheet sorption material for the removal of oil from oil spills
Inventor: HERKENBERG WOLF
IPC: E02B15/04
Filed: 1990-12-05
Granted: 2000-05-23
Abstract: Relatively thin flexible sheets of oleophilic, hydrophobic substrates, such as polyethylene film, are used as the basis for novel sorbent media in the defence against ail spills, Exhibiting the combination of a high storage density and a high affinity for oil, substrates according to the invention are intended for deployment on sensitive areas of open water or shoreline as a first line of defence against approaching oil slicks; or for early assistance in the containment of oil near the source of a spill. Efficiency and economy for specific application is achieved on the principle that oil pick-up per unit mass of film-form substrates is increased by decreasing the substrate thickness. A specific sorbent medium according to the invention comprises a pair of flexible films (28a, 28b) sealingly laminated together and presenting across at least one of the films a plurality of collapsible bubbles (29) having small apertures (25a, 25b) through opposite ides thereof, so that the collapsed bubbles yield and dilate upon entry of contaminating oil into the bubbles, thereby forming oil-containing pockets (23) with a substantial interior volume capacity for oil. The film of which sorbent media according to the invention are fabricated may advantageously incorporate oil-degrading additives.
Patent CA-2071616-C (CA)
Title: Input-output signal control apparatus
Inventor: KONDO RYUICHI
IPC: H04L12/427
Filed: 1992-06-18
Granted: 1999-05-25
Abstract: When input signals from a plurality of input ports are selected and are inserted into the time slots to be output from a single output port and to insert respective signal data into time slots in synchronization with a synchronizing signal, the apparatus is so constructed that selector units (5-i) are provided to correspond to input ports (l-i), and a synchronizing signal generating unit (4) is provided to output, synchronously, a synchronizing signal and selecting signal information for designating a selector unit (5-i); the selector unit (5-i) being provided with a determining unit (6) for determining whether or not the selecting signal information designates the selector.
Patent CA-2073880-C (CA)
Title: Liquid spray machine for coating interior of pipes
Inventor: HART MILBURN L
IPC: B05B13/06
Filed: 1992-07-15
Granted: 2002-12-10
Abstract: The invention is a spray machine for spraying liquid coating material onto the interior surface of a pipeline. The spray machine is provided with a movable frame which can be rolled on attached wheel assemblies through the pipeline and positioned with its spray gun pointing toward the interior pipe surface. The frame serves as a base to which the other parts of the spray machine attach. The spray gun and an attached hollow gun rotating shaft continuously rotate axially within the pipeline. When the spray gun is properly positioned, the spray gun is mechanically turned on and off by a cable attached to a gun actuating arm which is pivotally mounted on a bracket attached to the gun rotating shaft.      The gun actuating arm is provided with a cam follower which travels in a rotating path against a movable cam plate assembly. The cam plate assembly is attached to and moved rearward by pistons of air actuated cylinders. When the cam plate assembly moves rearward, it pushes against the cam follower, causing the gun actuating arm to pivot and exert tension on the cable, turning the spray gun on.      When air is released from the air cylinders, tension is released on the cable, turning the spray gun off. Liquid coating material is supplied to the spray gun via a rotary fluid coupling. The rotary fluid coupling allows liquid coating material to flow through the coupling while one half of the coupling remains stationary with relationship to the frame and the other half rotates with the spray gun and the gun rotating shaft.
Patent CA-2079672-C (CA)
Title: Switchon-switchoff, multistate, interactive, antiphotocopying, antifraud and antifaxing system
Inventor: GUNDJIAN ARSHEVIR
IPC: G03C1/00
Filed: 1991-03-28
Granted: 1997-12-16
Abstract: A method and apparatus for preventing reproduction of printed matter on a substr ate by photocopying, telefaxing and the like. A substrate is provided with at least one main surface and a photochromic dye is applied to the one main surface, wherein the dye changes color in response to exposure to light with a response time whic h is a function of the amount of light absorbed by the dye in a given time period. The one main surface is illuminated with a given amount of light and the response time is decreased to accelerate the change in color of the dye by increasing the proport ion of light which is absorbed by the dye from the given amount of light.
Patent CA-2079995-C (CA)
Title: Method and apparatus for eviscerating poultry
Inventor: KOOPS HENDERIKUS
IPC: A22C21/06
Filed: 1992-10-06
Granted: 2001-06-12
Abstract: A method and apparatus is provided in which an eviscerating means is moved into and out of poultry to be processed. The spine of the poultry extends horizontally, and transversely to the direction of conveying the poultry.   During evisceration the eviscerating means reciprocates horizontally in the direction of the poultry, and moves synchronously with the poultry in the direction of conveying.
Patent CA-2090629-C (CA)
Title: Electrical heating systems for low-cost retrofitting of oil wells
Inventor: BRIDGES JACK E
IPC: E21B36/04
Filed: 1993-03-01
Granted: 1998-12-29
Abstract: The present invention provides a new and improved efficient power delivery system which, when combined with an improved downhole apparatus, selectively heats the casing or screen immediately adjacent to the formation.  Two generic casing heating systems which are suitable to be combined with an improved and efficient power delivery system are described.  Such heating systems include direct ohmic heating of the casing or screen immediately adjacent to the formation or induction heating apparatus to heat the casing or screen by eddy-current effects.  Optimum design details which permit the more cost-effective installations of a retrofit system while at the same time maintaining a reasonable power delivery efficiency are also described.  Such optimum design parameters include the selection of the frequency and providing matching elements downhole with the type of casing or screening heating systems employed.
Patent CA-2091921-C (CA)
Title: Inflatable catheter system
Inventor: SOLAR RONALD J
IPC: A61M25/00
Filed: 1993-03-18
Granted: 1999-06-01
Abstract: The invention herein is directed to a dilatation catheter comprising a steering wire, a dilatation balloon concentric to said steering wire, and a flexible, inflatable catheter shaft concentric to the steering wire and in fluid communication with the balloon.
Patent CA-2095809-C (CA)
Title: Method for cleaning aluminum and aluminum alloys
Inventor: AOKI TOMOYUKI
IPC: F28F19/02
Filed: 1991-11-12
Granted: 2001-06-12
Abstract: An aqueous alkaline cleaner for aluminum has a pH in the range from 10.0-12.0 and contains:: At from 0.5 to 10.0 g/L of an alkali builder component; B) from 0.5 to 10.0 g L of aminoalkyl- and or hydroxyalkyldiphosphonic acids and/or their water soluble salts: C) from 0.1 to 3.0 g/L of an aluminum ion sequestering agent component: and D) from 0.5 to 5.0 g/L of a surfact-ant component. Cleaning aluminum and aluminum alloy with such a cleaner generates an excellent surface condition with re-spect to de-smutting performance, water wettability avoidance of black smut production. blackening, and paint adherence at least as good as that achieved with conventional acid cleaner. without requiring any acid wash.
Patent CA-2098471-C (CA)
Inventor: KOSMYNA MICHAEL J
IPC: B01D46/40
Filed: 1993-06-15
Granted: 1998-09-22
Abstract: Disposable air filter includes a filter element formed from a stacked plurality of annular disks.  The disks are formed from a sorptive material and expand upon absorption of oil or water droplets.  The disks are slightly compressed by a movable baffle.  The baffle floats upon a stream of air entering the filter and directs the air radially through the filter element.  The air flows between and through the disks with a resulting low pressure drop across the filter.  As the disks expand, the baffle shifts axially within a filter housing to maintain the pressure drop across the filter element.
Patent CA-2111820-C (CA)
Title: Method for reducing an .alpha.,.beta.-unsaturated ketone
Inventor: IMUTA MITSURU
IPC: C07B31/00
Filed: 1993-12-17
Granted: 1999-05-18
Abstract: A method for reducing an .alpha.,.beta.-unsaturated ketone of the present invention includes the step of treating the .alpha.,.beta.-unsaturated ketone with a silyl compound in the presence of a Lewis acid and alcohol to selectively  reduce  the  carbonyl  group  of  the .alpha.,.beta.-unsaturated ketone.  According to this method, a deoxy-compound can be obtained from the .alpha.,.beta.-unsaturated ketone by selectively reducing the carbonyl group without reducing an .alpha.,.beta.-unsaturated bond.
Patent CA-2119250-C (CA)
Inventor: MATHUR RAJIV
IPC: A61K8/92
Filed: 1992-08-20
Granted: 2006-01-24
Abstract: A new class of lipid vesicles having a blend of two lipids, a primary lipid and a secondary lipid, has been developed. The primary lipid, which forms the greatest proportion of lipid by weight, will not form vesicles nor preferably, even a lamellar phase, without addition of the secondary lipid. Preferably primary lipids are C12,-C18 fatty alcohols, C12-C18 glycol monoesters; and C12-C18 glyoeryl mono- and diesters.
Patent CA-2122673-C (CA)
Inventor: KOZUMPLIK NICHOLAS JR
IPC: F04B9/135
Filed: 1994-05-02
Granted: 2003-02-04
Abstract: The design of an air operated double diaphragm pump provides improved assembly, mounting flexibility, multiple plumbing combination including check valves which allow the pump to be mounted in any position without effecting its ability to prime or pump. A two shell housing design provides an enclosure for the air motor and includes structural ribbing, internal baffling, and all connections are made on the end of the pump in line with the diaphragm centerline allowing the pump to be installed in any access in line with the plumbing system.