baber/WOPTO huggingface dataset:
Patent CA-2027439-C (CA)
Title: Biasing scheme for improving latitudes in the tri-level xerographic process
Inventor: GERMAIN RICHARD P
IPC: G03G15/08
Filed: 1990-10-12
Granted: 1999-02-23
Abstract: The operating latitude of the tri-level xerographic process is improved by replacing the standard DC bias that is applied to one or both of the developer housings in conventional tri-level imaging with a chopped DC (CDC) developer bias. Chopped DC biasing is the alternate application of two discrete bias voltages to a developer strucrute in a periodic fashion at a given frequency, with the period of each cycle divided up between the two bias levels at a duty cycle of from 5-10 % or 90-95% depending upon which of the two developer structures is being biased. In the case of the DAD developer structure the duty cycle of higher of the two biases is 5-10% and in the case of a CAD developer structure the duty cycle of higher of the two biases is 90-95%.
Patent CA-2028917-C (CA)
Title: Floating dredger
Inventor: ROHR WOLFGANG
IPC: B66D1/62
Filed: 1990-10-30
Granted: 1999-01-19
Abstract: The floating dredger is provided with a floating body and a framework 1 on which a drive for driving pulleys 2, 3, 4 is mounted. Over the driving pulley 2 a hoisting rope 5 is put; on both sides of the pulley the grippers 6, 7 are suspended, by means of rope pulleys 8. Each of the hoisting rope 5 ends is fastened to a compensating winch 9, respectively 10, which provides for the rope to be compensated for varying dredging depths.
Patent CA-2029347-C (CA)
Title: N-substituted-3-(substituted hydrazino)-benzenesulfonamide derivatives, preparation process thereof and herbicidal compositions
Inventor: YAMAZAKI SHIRO
IPC: C07C311/39
Filed: 1990-11-06
Granted: 1997-12-23
Abstract: Disclosed herein are N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives of the formula (I):     (see fig. I) wherein R1 is CF3, COOH or CC1=CC1COOH, R2 is H, C1, C1-C3 alkyl or C1-C4 alkoxycarbonyl; Z is CH or N; X1 is C1-C3 alkyl, C1-C3 alkoxyl or C1; and X2 is C1-C3 alkyl or C1-C3 alkoxyl, a process for the preparation thereof, and herbicidal compositions containing the N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives as active ingredients.
Patent CA-2036408-C (CA)
Title: Blends based on vinyl aromatic polymers endowed with high mechanical characteristics
Inventor: FASULO GIAN C
IPC: C08L23/02
Filed: 1991-02-15
Granted: 2002-06-04
Abstract: Blends based on vinyl aromatic polymers endowed with high mechanical characteristics, even after succes~ sive processings at temperatures equal to or higher than 200°C, comprising: -- a vinyl aromatic polymer containing from 0.5 to 5% by weight of a vinyl aromatic monomer-conjugated diene linear block polymer and from 5 to 15% by weight of a diene rubber; -- a polyolefine; and -- a vinyl aromatic monomer-conjugated diene linear block polymer, having a diene content comprised between 20 and 80% by weight; the sum of the three components being equal to 100%.
Patent CA-2039874-C (CA)
Title: 4'-demethylepipodophyllotoxin glycosides
Inventor: OHNUMA TAKESHI
IPC: A61K31/7048
Filed: 1991-04-05
Granted: 1995-09-05
Abstract: The present invention relates to antitumor 4'-demethylepipodophyllotoxin glycosides having the formula   wherein R is a pentose selected from the group consisting of .beta.-D-ribopyranosyl, peracyl .beta.-D-ribopyranosyl, .beta.-D-xylopyranosyl, peracyl .beta.-D-xylopyranosyl, .alpha.-D-xylopyranosyl, peracyl .alpha.-D-xylopyranosyl, .alpha.-D-arabinopyranosyl, 3,4-O-(C1-4)alkylidene-D-ribopyranosyl, 2-O-acyl-3,4-O-(C1-4)alkylidene-D-ribopyranosyl, and .beta.-D-ribofuranosyl; P is hydrogen, or -PO3H2 or a pharmaceutically acceptable salt thereof.
Patent CA-2041674-C (CA)
Inventor: LEGARE PIERRE
IPC: A62B19/00
Filed: 1991-05-02
Granted: 1998-12-29
Abstract: A filter canister assembly and process utilizes a sealant deflector to seal a particulate filter to the canister wall, even after the canister is sealed.  The canister housing has a wall and an aperture with a particulate filter disposed therein.  The particulate filter has an edge adjacent the wall, and is designed for removing particles of contaminants from a fluid, such as air, passed through the canister.  A sealant deflector includes a plurality of vanes standing proud of a support substrate, and is situated between the aperture and the particulate filter and forms a permanent part of the canister assembly.  The sealant deflector deflects a sealant in liquid state toward the wall to form a seal between the edge and the wall when the sealant is deposited on the sealant deflector while spinning. This deposits a sealant ring sealing the wall to the edge.  The sealant deflector is self-centered under the aperture, by a bow-tie shaped structure of four arms extending outward radially from the sealant deflector connected in pairs by curved braces.
Patent CA-2042746-C (CA)
Title: Crimping tool having improved crimping dies
Inventor: LEVY SIDNEY
IPC: H01R43/042
Filed: 1991-05-16
Granted: 1995-04-04
Abstract: A hand tool of the pliers-type configuration used for crimping electrical terminals is disclosed.  The tool includes a pair of jaws movable with respect to one another by the actuation of a pair of handles.  The jaws define a crimping nest which supports an electrical terminal.  One die of the crimping nest includes a raised surface, and depending tapering side walls.  The raised surface of the die has an hour-glass configuration.  The particular shape of the die limits the pressure applied to the terminal during crimping, so as to reduce the tendency to overcrimp the terminal.
Patent CA-2048401-C (CA)
Title: Edible fats
Inventor: SCHIJF ROBERT
IPC: A23D7/00
Filed: 1991-08-02
Granted: 1996-07-30
Abstract: Improved edible spreads having a low content of saturated fat are prepared by fully hardening a fat and blending the resulting hardstock with liquid oil. The fully hydrogenated fats comprise 3-10%, preferably 5-8% of the total fat present and the level of trans fatty acid is very low. Fats for use in such hardstocks are selected such that the hardstock has a palmitic acid residue level of >25%, preferably 30-50% and a glycerol tristearate level of below 10%.
Patent CA-2052366-C (CA)
Title: Devices for measuring braking torques generated by electromagnetic retarders, and to devices for adjusting such torques
Inventor: EVEN DENIS
IPC: H02P15/00
Filed: 1991-09-30
Granted: 1996-01-30
Abstract: A measuring device for measuring the braking torques generated by a vehicle-mounted electromagnetic retarder having a fixed secondary magnetic circuit or "stator".  The device comprises means for measuring the speed of rotation V of the rotor of the retarder, means for detecting variations in the electrical potential difference U that is generated during operation of the retarder between two points on its stator, which points are sufficiently distinct from each other with respect to the way electrical potential varies at the two points during the operation, means for measuring the amplitude A of the variation, a memory circuit suitable for causing to correspond to each pair of measured values A and V the value C of the corresponding torque, and means for displaying or making use of the values C.
Patent CA-2060723-C (CA)
Title: Heat-resistant sintered hard alloy
Inventor: TAKAGI KENICHI
IPC: C22C29/14
Filed: 1992-02-05
Granted: 1998-08-04
Abstract: A heat-resistant sintered hard alloy comprises 35% to 95% by weight of a WCoB type complex boride in a cobalt base alloy.  The alloy  contains  1.5%  to  4.1%  boron,  19.1%  to  69.7%  tungsten, optionally 1 to 25% chromium,  the balance being cobalt and a maximum of 1%  impurities.   Nickel,  iron and/or copper may be substituted for portions of the cobalt content.
Patent CA-2062412-C (CA)
Title: Lowering blood cholesterol levels using water soluble cellulose ethers
Inventor: GALLAHER DANIEL D
IPC: A23L1/308
Filed: 1992-03-06
Granted: 2002-10-15
Abstract: A method for reducing the cholesterol level in mammalian blood by administering a water soluble cellulose ether thereto. The cellulose ethers have a viscosity, measured as a 2% aqueous solution at 20°C, of at least about 35 cps. Oral administration is preferred, and, in one embodiment the high viscosity water soluble cellulose ether is hydroxypropyl methylcellulose, contained in a nutritious foodstuff.
Patent CA-2063618-C (CA)
Title: Electric utility revenue meter polycarbonate base
Inventor: HARTMAN MARINUS
IPC: G01R11/04
Filed: 1992-03-20
Granted: 2000-12-05
Abstract: A base for an electric utility watt hour meter made from a polycarbonate material preferably reinforced with glass fiber and ultraviolet light stabilized. The molded base receives current terminals that have outwardly directed lugs engaging one face of the base and there are locking arms on the other side of the base resiliently biased against the lug to engage a locking formation thereon. The base has a knife-edge rib extending about its periphery to sealingly engage a front edge face of a cup shaped transparent cover for the meter. A metal ring joins the cover to the base the metal ring being a band with a first series of lugs struck out and directed inwardly to engage the flange on the cover and a second group of tabs struck outwardly and bent inwardly to engage the bayonet ramp surfaces on the base.
Patent CA-2066527-C (CA)
Inventor: BURKE TERRENCE R
IPC: A01N25/06
Filed: 1992-04-21
Granted: 2000-09-12
Abstract: A water-based or solvent-based, or combinations thereof, aerosol insecticide is provided. Dimethylether (DME) is used both as a solvent and a propellant. The DME holds the ingredients of the aerosol in a homogenous liquid solution while it is in an aerosol bomb. Upon release of the aerosol, the DME flashes off and the remaining ingredients separate into two phases: a liquid phase, and a solid or oil phase having the active insecticidal ingredients.
Patent CA-2071625-C (CA)
Inventor: EIBL JOHANN
IPC: A61K38/00
Filed: 1992-06-18
Granted: 2000-02-22
Abstract: A pharmaceutical preparation contains protein C and a thrombolytically active substance that does not activate protein C. This preparation prevents reocclusion usually occurring in the course of thrombolysis therapy.
Patent CA-2073744-C (CA)
Inventor: LADOUCEUR HAROLD A
IPC: F16B35/06
Filed: 1992-07-13
Granted: 2002-11-19
Abstract: An electrical grounding connector, electrical grounding connector assembly, and a method of attaching an electrical grounding connector and electrical grounding connector assembly to an electrically conductive panel is disclosed. The grounding connector assembly includes a grounding stud connector having a body portion disposed between, and integrally joining, a stud portion and a riveting portion.      The body portion includes a flange extending generally radially from the body portion and the flange includes a panel engaging surface and a lug engaging surface. A protective nut is adapted to engage in substantially cover the stud portion of the grounding stud connector thereby protecting the stud portion from contaminants. Barbed elements axe disclosed on various surfaces of the grounding connector thereby giving the grounding connector excellent electrically conductive properties when it is assembled to an electrically conductive panel. In a preferred embodiment, the grounding connector is preassembled with the protective nut, thereby allowing the assembly to be installed on an electrically conductive panel in one step.      While the grounding connector and connector assembly is particularly suited for self-piercing applications, it may be used equally well in prepierced applications.
Patent CA-2076884-C (CA)
Title: Process for gasifying coal and apparatus for coal gasification
Inventor: TAKAHASHI SADAO
IPC: F01K23/06
Filed: 1992-08-26
Granted: 1999-02-02
Abstract: Coal is supplied to a gasification furnace heated to 1,400°C or higher and gasified for 0.1 to 1 second to form a hydrogen-rich gas, which is purified to a purified gas.  The purified gas is used as a heating fuel to the gasification furnace, and the combustion gas is fed to an electric generator-coupled gas turbine to generate electric power.  The steam recovered in a gas cooler is heated with the exhaust gas from the gas turbine and fed to an electric generator-coupled steam turbine to generate electric power.  A hydrogen-rich gas with less CO is formed directly from coal thereby.
Patent CA-2078056-C (CA)
Title: Determination of carbon in fly ash
Inventor: CUTMORE NICHOLAS GEORGE
IPC: G01N15/06
Filed: 1991-03-20
Granted: 2002-07-30
Abstract: An apparatus and method to measure the unburnt carbon content of fly ash. A microwave signal is transmitted through or ref-lected from a fly ash sample and the attenuation or phase shift of the signal received by a detector/detectors (7, 11, 34, 35) is deter-mined (6, 9, 2, 36) with respect to the incident signal and is used to provide a measure of unburnt carbon content. The detectors (7, 11, 34, 35) may be antennae means which also launch the incident sig-nal or may be a completely separate means. A preferred embodi-ment comprises a microwave oscillator (30) for launching the mic-rowave signal into a fly ash sample, in a microwave resonant cavity (33). Detectors (34, 35) determine the attenuation of phase shift of the received signal with respect to a signal from a reference micro-wave resonant cavity by the fly ash sample, a measurement of the unburnt carbon content is obtained.
Patent CA-2083946-C (CA)
Title: Battery saving method and apparatus for providing selective receiver power switching
Inventor: DAVIS WALTER LEE
IPC: H04B1/16
Filed: 1991-04-08
Granted: 1998-06-16
Abstract: A battery saving apparatus selectively supplies power to each receiver function of a battery powered communication receiver at predetermined time intervals prior to the reception of coded message signals.  The selective supplying of power to each receiver function enables the reception of the coded message signals with each receiver function being powered only as long as is required for each receiver function to stabilize.  The predetermined time intervals for each receiver function are programmed into a code plug to provide the capability to change the turn-on times when required.
Patent CA-2084869-C (CA)
Title: Mouthwash compositions
Inventor: KLUGKIST JAN
IPC: A61K8/34
Filed: 1992-12-08
Granted: 1998-03-31
Abstract: The present invention relates to anti-plaque mouthwash compositions that contain a zinc salt and Triclosan as the anti-plaque system.      Effective, clear mouthwash compositions with a zinc salt and Triclosan can be obtained if the compositions contain a nonionic surface-active agent and contain not more than 60% by weight of water, the compositions further containing a lower aliphatic monohydric alcohol and a humectant.            Typical formulations contain zinc sulphate, zinc phenolsulphonate or zinc glycinate, Triclosan, an ethylene oxide/propylene oxide block copolymer as the nonionic surface active agent, ethanol, sorbitol as the humectant and less than 60% by weight of water.
Patent CA-2085694-C (CA)
Title: Image-tone control circuit and gradient adjusting circuit therefor
Inventor: SADAMATSU HIDEAKI
IPC: H04N5/57
Filed: 1992-12-17
Granted: 1995-11-21
Abstract: A tone control circuit for luminance signals is disclosed.  An adjusting current is used to add to or subtract from input signals with a gain control.  Output signals are thus controlled to have a predetermined gradient based on an arbitrary output setting voltage against the input signals, and an input-output characteristic represented by an arbitrary line graph is obtained with plural gradient adjusting circuits.
Patent CA-2086496-C (CA)
Title: Multiple part identification card production
Inventor: LONGTIN ANDRE
IPC: B42D15/10
Filed: 1992-12-30
Granted: 2003-06-03
Abstract: An identification card intermediate is constructed so that it hay a multi-part construction overlying the base stock of the intermediate. The basic web, comprising a transparent plastic substrate with a base stock covering the first side and a release liner convering the second side, is mated with one or more paper webs and carbon sheet webs so that paper and carbon sheets overlie the base stock of the basic web. A glue pattern adjacent one edge of the base stock holds the paper and carbon sheets in place, and a perforation line through the webs allows detachment of the overlying paper and carbon sheets from the base stock.
Patent CA-2094868-C (CA)
Title: Semiconductor laser module
Inventor: MICHIKOSHI HISATO
IPC: G02B6/32
Filed: 1993-04-26
Granted: 1997-07-08
Abstract: An improved semiconductor laser module is provided herein which is used for transmitting signals by optical fibre in optoelectronic communication. This improved semiconductor laser module includes a semiconductor laser for emitting light beams; a lens for converging the light beams, a lens holder having an axial bore for keeping the lens in the axial bore and the semiconductor laser at an end of the axial bore, and an optical fibre. A ferrule holds an end of the optical fibre. A receptacle which has an axial hole therein supports the ferrule, the receptacle being connected to the lens holder. A transparent block having non-parallel front and rear surfaces is fixed in the axial hole of the receptacle, the transparent block being separated from the end of the fibre. In this way, the deviation of axes between the receptacle and lens holder is small enough, and assembly is easy. In addition, the coupling between the receptacle and lens holder has strong mechanical strength. This solves the existing problem of contamination of the transparent block by adhesion of dust which deteriorates the performance against noise induced in the laser by the return of the beam.
Patent CA-2097443-C (CA)
Inventor: HAAB OTTO
IPC: E06B3/964
Filed: 1993-06-01
Granted: 2003-08-12
Abstract: Two mutually adjoining profile pieces (1a) of equal cross-section are connected by means of a coupling piece (16) which overlaps both of them and is situated in a coupling groove (15). The convexly arched floor of the latter is formed by the underside of a crossbar (5), the top side of which forms a running surface (6) for bearing rollers of running mechanisms. In the downward. direction, the coupling groove (15) is limited by lateral holding strips (18a,b) exhibiting flat, inwardly inclined holding surfaces (19a,b), which point towards the floor of the said coupling groove and against which are pressed corresponding contact strips (20a,b) of the coupling piece (16), which coupling piece is braced against the holding strips (18a,b) of each of the profile pieces (1a), by meaner of, in each case, two tapping screws (17b) pressing against the floor of the coupling groove (15).      At the bottom, the coupling groove (15) is adjoined by a guide groove (9) for receiving guide rollers.      For the purpose of enabling a particularly stable connection of the profile pieces - for example in the case of a rail supported only punctually by means of sliding blocks, which are disposed in a fastening groove and in which threaded bolts engage - the profile pieces can be provided with two coupling grooves disposed at a distance apart one above the other.
Patent CA-2097446-C (CA)
Title: Continuous flow system for mixing and processing bulk ingredients
Inventor: PHILLIPS DONALD G
IPC: B01F25/90
Filed: 1993-06-01
Granted: 1996-02-20
Abstract: A system for combining, mixing, and further processing ingredients to produce a specified weight of a composition in accordance with a specified recipe.  The ingredients are discharged from hoppers into a central conveyor.  Each hopper operates under control of a hopper controller that regulates the discharge rate and controls refilling of its associated hopper.  The ingredients are mixed in the central conveyor as they are transferred to a processing device, such as a mill or roaster, and then discharged from the processing device into a network of conveyors for transfer to another location for further handling.  The system operates under the control of a central controller which regulates the discharge rates of the various ingredients to optimize the feedrate to the processing device.  The central controller also monitors the weight of the processed product in a production run and compares it with the specified total weight for the run in order to shut down the system when the specified total weight has been processed.
Patent CA-2103382-C (CA)
Inventor: SU KAI CHIANG
IPC: G02C7/02
Filed: 1993-11-18
Granted: 2004-01-27
Abstract: A contact lens colorant formulation containing a non-ionic polyalkylene oxide surfactant is applied to a dry hydrophilic contact lens by means of a silicon rubber printing pad to provide a cosmetically acceptable, solid, unblemished covering. This process allows for a solid covering to be placed onto the lens in a single printing step using standard transfer printing devices.
Patent CA-2114283-C (CA)
Title: Inflatable rescue ramp
Inventor: GENOVESE DAVID E
IPC: B63B27/14
Filed: 1994-01-26
Granted: 1998-04-28
Abstract: A rescue ramp (10) for use by a watercraft (11) includes a laterally extending first inflatable tube member (14) attachable to the watercraft (11).  Second spaced inflatable tube members (15) are connected at one end to and extend longitudinally from the ends of the first tube member (14).  A third inflatable tube member (16) is connected between the second tube members (15) near the other end thereof and is adapted to be positioned in the water.  A ramp (17) is connected to the first and second tube members (14, 15) so that when the rescue ramp (10) is inflated and attached to the watercraft (11), a person may traverse from the water to the watercraft (11) or from the watercraft (11) to the water.  The first tube member (14) is attached to the watercraft (11) by means of a girt bar (23) releasably mounted on the watercraft (11).  The girt bar (23) is connected to a first flap (26) which is detachably connected to a second flap (20) attached to the first tube member (14).
Patent CA-2120218-C (CA)
Title: Method and apparatus for sensing guidewire signals
Inventor: DAY RICHARD M
IPC: B62D1/28
Filed: 1994-03-29
Granted: 1997-07-15
Abstract: The present invention features a material handling vehicle that is capable of operating in a manned mode, a wire guidance mode, and a rail guidance mode.  This manned material handling vehicle contains a steering management control system comprising a logic program which allows the vehicle to adapt itself to different wire control systems.          That is, the particular parameters, frequency and amplitude of the underlying wire guidance system can be determined.          In this manner, the manned vehicle is universally adaptive to a wide variety of wire guidance systems.
Patent CA-2127681-C (CA)
Inventor: CZERLANIS JOHN A
IPC: H01R4/24
Filed: 1994-07-08
Granted: 2000-02-01
Abstract: A connector assembly for effecting electrical circuit connection between insulated wires without removing the insulation therefrom including two identical insulated unitary housing members capable of being coaxially interfitted to define a central passage chamber for a dual conductor cable; each housing member carrying a plate terminal formed with an elongated central opening receptive of a single wire conductor and having a sharp prong protruding from one side thereof for penetrating the insulation of the cable and contacting one wire conductor thereof when the housing members are interfitted; each of the plate terminals operating to penetrate the insulation of an associated single wire conductor to establish circuit connection therewith.