baber/WOPTO huggingface dataset:
Patent CA-2040080-C (CA)
Title: Salts of triazinic compounds with oxygenated acids of phosphorus
Inventor: CIPOLLI ROBERTO
IPC: C07D251/54
Filed: 1991-04-09
Granted: 1997-11-04
Abstract: Salts of triazinic compounds with oxygenated acids of phosphorus, of the general formula (I):     (see fig. I) wherein: at least one of radicals from R to R5 is:     (see fig. II) (see fig. III) being: m= an integer comprised between 2 and 8; p= an integer comprised between 2 and 6;     R8=H;   C1-C8  alkyl;  C2-C6  alkenyl;   (see fig. IV) wherein q is an integer comprised between 1 and 4 and R9 is hydrogen or C1-C4 alkyl; C6-C12 cycloalkyl or alkylcycloalkyl; radicals R', the same or different between them, are H;     C1-C8 alkyl; C2-C6 alkenyl; C6-C12 cycloalkyl or alkyl-cycloalkyl,  provided  that radicals  R6  and  R7, here-inafter described are respectively different from H and OH; or the group:     (see fig. V) is replaced    by a heterocyclic radical bound to the alkyl chain through the nitrogen atom; or in the formula (I) at least one of groups (see fig. VI)  ;   (see fig. VII)   ;  (see fig. VIII) is   replaced by a heterocyclic radical bound to the triazinic ring through the nitrogen atom; the other radicals from R  to R5, the same or different among them, have the above mentioned meaning or are: 11;   C1-C18  alkyl;   C2-C8  alkenyl;   C6-C16  cycloalkyl   or alkylcycloalkyl; n is a numebr varying up to 6;      R6 and R7 are selected from particular categories of radicals.    The new salts having the general formula (I) are applied, in particular, as anti-flame additives for polymers.
Patent CA-2050545-C (CA)
Inventor: DAVIS THOMAS L
IPC: F23G7/06
Filed: 1991-09-03
Granted: 1998-10-27
Abstract: Spills of hydrocarbons  into soil,  hydrocarbon gases generated by materials in land fills, and residual vapors in empty storage  tanks  must  be  extracted  and  disposed  of  to  prevent environmental  impact through air pollution,  toxic hazard,  or explosion hazard.  This invention relates to an automatic mixture control system for an internal combustion engine connected to vaporize and burn waste hydrocarbons from a source gas comprising a fuel mixture sensor interconnected to the engine;  a mixing chamber attached to an intake manifold of the engine, the mixing chamber adapted to receive air and mixture control fuel; and a mixture control means connected to the mixing chamber for receiving source gas and a supplemental fuel for combination as the mixture control fuel, the mixture control means responsive to the fuel mixture sensor to vary the amount and combination of the source gas and supplemental fuel comprising the mixture control fuel to provide a near stoichiometric mixture in the engine.
Patent CA-2053237-C (CA)
Title: Discriminating electret radioactivity detector system and method for measuring radon concentration
Inventor: DORFI KURT
IPC: G01T1/178
Filed: 1991-02-22
Granted: 2001-02-13
Abstract: The detector system includes three substantially similar detectors each of which includes an ionization chamber having a pedestal therein mounting a charged electret. Two chambers are completely sealed except for an equalization aperture. However, gamma rays produce ionization that neutralizes portions of the electret charge in these sealed chambers. The third detector has filtered inlet openings, which permit entry of radon gas, and responds to gamma rays and radon gas. Each detector is a canister including a lid having a round base surrounded by a cylindrical wall. The canister body is a circular base surrounded by a cylindrical wall that nests within the lid with a telescopic fit. A cylindrical pedestal assembly rests on the lid base and concentrically sandwiches the canister body between the pedestal assembly and lid. A press-fit holds these three elements together.     The charged electret is mounted on the platform by a retaining collar that holds the electret with a press-fit. By keeping the three units together until the test starts, one of the sealed containers can have the charge on its electret measured at the beginning of the test in order to provide a baseline measurement. At the end of the test, the charges on the other two electrets are measured and provide a gamma ray background measurement at the test site and a combined radon gas/gamma ray measurement. By appropriate calculations, an accurate measure of radon concentration at the test site can be obtained. As an alternative, only two canisters need be used if the baseline measurement is not necessary.
Patent CA-2056831-C (CA)
Title: Composite pillow featuring foam collapse preventing pad
Inventor: LAPENA JOSE L
IPC: A47G9/10
Filed: 1991-12-02
Granted: 1993-12-21
Abstract: Abstract A  pillow  comprises  a  foam  core  which  is  surrounded  by synthetic fibres.  The foam core, typically polyurethane foam, has the  same  basic  shape  as  the pillow.   The  synthetic  fibres, typically polyester, are layered having approximately the same thickness all around.  The hollow foam core has a smooth outside surface and a convoluted inside surface.  A thin rectangular piece of foam at the centre of the foam core cavity prevents the two convoluted    inside  surfaces  from  interlocking  when  pressed together.   The fibres and foam combination is typically held together and covered with a fabric pillow cover or ticking.  This pillow construction combines softness and comfort with support, durability and prolonged maintenance of pillow height using non-allergenic materials.
Patent CA-2057819-C (CA)
Inventor: SOLHEIM KARSTEN
IPC: A63B53/04
Filed: 1991-12-17
Granted: 1994-08-02
Abstract: A correlated set of golf clubs the heads of which each have a top ridge that extends longitudinally along the upper part of  the head  between  the heel and toe ends thereof  with  enlarged  mass concentrations being formed to provide upper protuberances at  the heel and toe ends of the ridge.  The top ridge and the upper  heel and  toe  protuberances are especially configured to  locate  mass concentrations  high on the heads and set back from  the  striking faces  thereof to provide the club heads with an improved  ability to  resist  twisting of the club heads upon  laterally  off-center impacts  with a golf ball and to resist tiling of the  club  heads upon vertically off-center impacts with a golf ball.
Patent CA-2059704-C (CA)
Title: [[2-(amino-3,4-dioxo-1-cyclobuten-1-yl)amino]alkyl]-acid derivatives
Inventor: KINNEY WILLIAM A
IPC: C07D/
Filed: 1992-01-20
Granted: 2002-07-16
Abstract: A compound of the formula:    in which R1 is hydrogen, alkyl or phenylalkyl; R2 is hydrogen, alkyl, alkenyl or phenylalkyl; or R1 and R2 taken together are -CH2CH2-, -CH2C(R6)(R7)CH2- or -CH2C(R8)(R9)-C(R10)(R11)CH2-, where R6, R8 and R10 are, independently, hydrogen, alkyl of 1 to 6 carbon atoms or hydroxyl and R7, R9 and R11 are, independently, hydrogen or alkyl of 1 to 6 carbon atoms; A is alkylene or alkenylene; X is CO2R3 in which R3 is hydrogen or alkyl, P(O)(OR4)(OR5) in which R4 and R5 are, independently, hydrogen or alkyl, 3,5-dioxo-1,2,4-oxadiazolidin-2-yl or 5-tetrazolyl; or a pharmaceutically acceptable salt thereof are useful as neuroprotectants.
Patent CA-2070322-C (CA)
Title: Superconducting fault current limiter
Inventor: HARA TSUKUSHI
IPC: H02H9/02
Filed: 1992-06-03
Granted: 2000-08-08
Abstract: There is disclosed a current limiter having a plurality of current limiting units provided for electric paths constituting a plurality of phases, Each current limiting unit is constituted by a superconducting coil functioning as a first current limiting element formed in a non-inductive winding manner by connecting two superconducting coils in series, which superconducting coils are wound in opposite directions and equal in size and number of turns, and a superconducting coil functioning as a second current limiting element connected in parallel to the first current limiting element and having a predetermined impedance value. These current limiting units are contained within a cryostat and separated by a magnetic shield member for electromagnetically isolating the respective phases.
Patent CA-2074360-C (CA)
Title: Stator for dynamoelectric machine
Inventor: CLARK PETER BRUCE
IPC: H02K1/02
Filed: 1991-02-01
Granted: 2000-04-04
Abstract: A co-axial cylindrical brushless DC motor (10) has an internal cylindrical stator (16) and an external rotor (11) containing permanent magnets (27). The cylindrical stator has a substrate of reinforced plastics covered by several layers of helically wound annealed steel wire (4) of about 1 mm diameter to provide a cylindrical layer of soft magnetic material just below the wound poles (W1, W2, W3) on or adjacent the outer surface of the stator (16).
Patent CA-2079883-C (CA)
Title: Method and packaging for preserving and dispensing portions of a sterile liquid
Inventor: LONTRADE JEAN-PIERRE
IPC: A61J1/05
Filed: 1991-04-10
Granted: 2001-05-15
Abstract: The liquid is enclosed in a resiliently deformable container (1), the neck of which has a microfiltering membrane (9) which is permeable to the liquid but impermeable to air when wet. Since the container resiliently recovers its shape after it is deformed, the liquid remaining in contact with the outside of the membrane after use is sucked back in and the membrane is kept moist until the next time the container is used.
Patent CA-2079915-C (CA)
Title: Peroxygen laundry bleach
Inventor: COPENHAFER WILLIAM CLARK
IPC: C11D17/00
Filed: 1991-04-03
Granted: 1996-10-08
Abstract: The invention provides a process to coat dry particles comprising sodium carbonate perhydrate to provide a stable dry particulate solid which releases hydrogen peroxide when contacted with an aqueous solution.  The coated particles are readily soluble in water and/or stable when formulated into a solid detergent.
Patent CA-2082967-C (CA)
Title: Large round baler wrap material housing having a cooperative material roll load bar and cover structure
Inventor: ANSTEY HENRY DENNIS
IPC: A01F15/07
Filed: 1992-11-20
Granted: 1995-10-17
Abstract: A large round baler is equipped with a wrapping mechanism for applying a web of plastic material to a bale located in the bale-forming chamber.  The wrapping mechanism includes a housing including a cover mounted to the rear of the discharge gate of the baler for pivoting vertically, about a first horizontal transverse axis at an upper forward location of the cover, between a lowered closed position, wherein it encloses a roll of wrap material resting on a pair of roll end supports, and a raised position permitting access to the roll end supports.  A pair of gas springs are coupled between opposite side walls of the cover and spaced apart crank arms of a load member which is vertically pivotally supported from the gate for swinging about a second horizontal transverse axis located slightly below and rearwardly of the first axis. The disposition of the gas springs relative to the first and second axes is such that the springs act to maintain a load bar of the load member urged into contact with a roll of wrap material supported on the roll end supports when the cover is in its closed position and acts to pivot the load member so as to dispose the load bar thereof in a raised inoperative position in response to the cover being raised to its open position, the springs also acting to maintain the cover in its raised position.
Patent CA-2083014-C (CA)
Title: Poly(phenylene ether) resin modified with silicone rubber powder
Inventor: ROMENESKO DAVID J
IPC: C08K5/5419
Filed: 1992-11-16
Granted: 2003-06-24
Abstract: A free-flowing silicone rubber powder, having an average particle size of 1 to 1000 microns and prepared by mixing a polydiorganosiloxane with a silica filler, is uniformly dispersed in a poly(phenylene ether) resin using conventional equipment, such as a single screw or, preferably, a twin screw extruder. When employed at relatively low concentrations, such as about 0.2 to 3 parts by weight of powder per 100 parts by weight of resin, a significant improvement in the processability of the resin is obtained, while modification at higher levels, such as 5 to 20 parts by weight of powder per 100 parts by weight of the resin, results in a resin composition having greatly augmented impact resistance.
Patent CA-2088021-C (CA)
Title: Scan interval control in ink jet recording apparatus
Inventor: HIRABAYASHI HIROMITSU
IPC: B41J2/21
Filed: 1993-01-25
Granted: 1998-09-08
Abstract: When image formation on an image area corresponding to a recording section of a recording head is completed by executing a plurality of number of times of record scans of the recording head using a plurality of complementary thin-out patterns, scan intervals are gradually increased before execution of pre-ejection (Nos. 29 to 33), and scan intervals are gradually decreased after execution of pre-ejection (Nos. 36 to 40), so that a variation in scan intervals of the plurality of times of record scans for a single image area is limited to fall within a predetermined time range.
Patent CA-2093799-C (CA)
Title: A recognition apparatus and method for security systems
Inventor: GRAHAM DAVID
IPC: G07C9/00
Filed: 1991-10-11
Granted: 2000-12-19
Abstract: A method of authenticating input data including user data and pin code data for an access control system. The method includes the steps of receiving the user data and the pin code data from a keyboard and/or a card reader (II), combining an offset data with the user data (13), making a modulo adjustment of said offset user data, obtaining one or more variables from the offset user data (14), calculating a matrix index (15) by bringing certain variables into a predetermined equation, determining a constant (16) from a matrix by the matrix index and comparing (17) the constant with a corresponding digit value of the pin code data. If the constant matches the digit value, a validation signal is generated and the next constant is obtained from the matrix by the next matrix index obtained by use of a predetermined second equation so that next digit value of the pin code data is compared with this constant. This procedure continues until all subsequent digits of the pin code data are checked to determine whether the input data entered into the access control system is true or not. If the data is true, the access is granted.
Patent CA-2095658-C (CA)
Title: Agrochemical compositions and methods employing 3-hydroxy-5-methylisoxazole
Inventor: FUJIMOTO MASAHIKO
IPC: A01N43/80
Filed: 1993-05-06
Granted: 2004-04-06
Abstract: Disclosed is the dihydrate of the calcium salt of 3-hydroxy-5-methylisoxazole. Also disclosed is a process for the preparation of the dehydrate of the calcium salt of 3-hydroxy-5-methylisoxazole, in which one part (molar) of calcium hydroxide and 2 parts (molar) of 3-hydroxy-5-methylisoxazole are added to water, and dissolved at 70 - 90°C, the resulting solution is filtered, whilst still warm, the filtrate is cooled to approximately 0°C and the crystals of the dehydrate of the calcium salt of 3-hydroxy-5-methylisoxazole are removed by filtration and dried.
Patent CA-2099657-C (CA)
Title: Electrochemical cell and method of manufacturing same
Inventor: BAMFORTH JOHN
IPC: H01M50/574
Filed: 1993-06-25
Granted: 1998-04-07
Abstract: An electrochemical cell comprises a housing having  an  electrochemical  circuit  system  therein including  a  cathode,  an  anode  and  an  electrolyte solution in contact with the anode and the cathode.  A conductive diaphragm is arranged in the top portion of the housing for cutting off current flow between the cathode and the anode, and is adapted for quick movement between a first stable conducting position and a second stable non-conducting position upon direct application of gas pressure generated in the electrochemical circuit system in excess of a first predetermined pressure.  The conductive diaphragm is unstable between the first and the second stable positions.  A conductive lead extends from the electrochemical circuit system to the conductive diaphragm and is connected to same when the conductive diaphragm is arranged in its first stable conducting position.  When the conductive diaphragm moves to its second stable non-conducting position, it is separated from the conductive lead and, thus, an open circuit condition is created between the cathode and the anode.
Patent CA-2103543-C (CA)
Title: Driver circuit for a plurality of gas discharge lamps
Inventor: MOISIN MIHAIL S
IPC: H05B41/24
Filed: 1992-03-06
Granted: 1996-11-12
Abstract: A circuit (500) for driving series-connected gas discharge lamps from a transformer secondary winding  (528) connected at first (529A) and second (529B) points respectively to first (508) and second (514) output terminals across the lamps.  A capacitor (532) couples the first point to an intermediate output terminal (512).  The pre-strike voltage produced across the secondary wind-ing is applied across a single lamp (506) to cause it to strike.  After striking, current to the intermediate output terminal (512) is limited by the capacitor (532), and the lamps are driven in series.  In this way, the voltage which needs to be produced across  the secondary winding to ensure striking of all lamps is  reduced.  Alternatively, the output terminals across the lamps may be connect-ed to points on the secondary winding further apart than the first and second points (Fig. 6) or intermediate the first and  second points (Figs. 1-4).
Patent CA-2106397-C (CA)
Inventor: COOK PHILLIP B
IPC: C04B18/10
Filed: 1992-06-19
Granted: 1999-04-06
Abstract: On prépare un mortier de béton en mélangeant du sable, du ciment, de l'eau et une cendre de boues d'égoût. Une mousse est ajoutée au mortier de façon à former du béton mousse.
Patent CA-2111183-C (CA)
Title: Horizontal wet scrubbing apparatus and method for removing sulfur dioxide from a gaseous stream
Inventor: STOWE DONALD H JR
IPC: B01D53/77
Filed: 1993-12-10
Granted: 1999-03-30
Abstract: A horizontal wet scrubbing apparatus and method for removing sulfur dioxide from hot flue gases.  The apparatus has a horizontally disposed housing through which the hot flue gases are passed,  and at least one liquid injection manifold vertically disposed therein and extending to adjacent a lower wall of the housing for directing an aqueous scrubbing medium parallel to the gas flow, and a flow deflection member adjacent to, and downstream from,  the manifold.   Aqueous scrubbing medium is collected in reservoirs at the lower wall of the housing and recycled to the injection manifolds.  The method provides for injection of aqueous scrubbing medium parallel to the flue gas flow and deflection of the gases, following the injection, by use of packing or baffles to provide intimate contact of the scrubbing medium with the gaseous stream.
Patent CA-2111741-C (CA)
Title: Ophthalmic lens package
Inventor: ABRAMS RICHARD
IPC: B65D85/00
Filed: 1993-12-17
Granted: 2000-11-07
Abstract: An ophthalmic lens package for inspection, sterilization, and delivery of the lens having a substantial planar first surface with a concave bowl, the bowl having a radius of curvature larger than the radius of the lens placed inside the bowl allowing the lens to center and settle in the middle of the bowl. About the bowl is an annular sealing area, preferably a planar annulus raised above the first planar surface away from the bowl, circumferentially about the circular boundary of the first planar surface and the concave bowl. The package is hermetically sealed slang the sealing area with a sealing sheet substantially parallel with the first planar surface and covering the concave bowl. The package is constructed of a non-nucleated polymer so that when water is placed in the bowl, the polymer surface is sufficiently wettable to substantially flatten the water meniscus in the center and thereby eliminate associated optical aberrations, permitting undistorted in-package inspection.
Patent CA-2111961-C (CA)
Title: Disjoncteur automatique miniature avec contact a monter dans l'axe z
Inventor: EDDS THOMAS A
IPC: H01H71/52
Filed: 1993-04-29
Granted: 1999-09-14
Abstract: L'invention se rapporte à un coupe-circuit miniature qui est destiné à favoriser l'assemblage automatique de tous ses composants. Les composants clés du coupe-circuit sont conçus individuellement et collectivement pour pouvoir être assemblés totalement le long de l'axe des Z. Plus particulièrement, le mécanisme d'actionnement du coupe-circuit, qui actionne les contacts (45, 46) pour établir ou couper le circuit électrique, est formé d'éléments destinés à interagir entre eux de façon â être assemblables le long de l'axe des Z. Le contact mobile (45) est défini sur un porte-contact ou un ensemble à lame (41), qui est destiné à être assemblé le long de l'axe des Z et qui fournit également une plus grande résistance à l'érosion par arc et une ouverture améliorée des contacts du coupe-circuit.
Patent CA-2112394-C (CA)
Title: Splittable sheath assembly and method for using
Inventor: LEE HONGPYO H
IPC: A61M25/00
Filed: 1992-07-06
Granted: 1997-04-22
Abstract: A splittable hemostatic valve (14) and introducer sheath (12) is provided for introductions of leads or catheters through the valve and sheath combination (10) into a vein or artery. Because of the hemostatic valve (14), this sheath (12) can remain in the vein throughout the operation with easier lead manipulation, especially in dual lead insertions, without bleeding, risk of air embo-lism or repeated sheath insertion related trauma. A side arm (18) to the hemostatic valve cage provides continuous fluid drip in order to prevent clot formation in the lumen of the sheath (12). At the point in the operation where the introducer sheath (12) and hemostatic valve (14) must be removed from the lead or catheter, score lines (36, 34) are employed to split or separate the introdu-cer sheath (12) and valve (14) a part so that the sheath (12) and valve (14) are removed from the implanted lead or catheter without sliding either the sheath (12) or valve (14) over the free end of the lead or catheter. The hemostatic valve is made in two separate parts (16a, 16b) which include a fluid-tight seal to facilitate splitting of the valve.
Patent CA-2113481-C (CA)
Title: Dispensed liquid volume control system
Inventor: PATON RICHARD D
IPC: B67D1/12
Filed: 1994-01-14
Granted: 1997-12-09
Abstract: An improved apparatus and method is provided for accurately dispensing a preselected volume of liquid. A flowmeter is provided to generate signals proportional to the flow of liquid through a faucet. A programmed microcomputer receives the flowmeter signals and controls the faucet. The residual volume of liquid (spill), which was dispensed after the faucet was last commanded to close, is stored and averaged with additional previously stored spill amounts by the microcomputer. The average spill volume is used to anticipate the spill for the forthcoming pour. When the cumulative volume of liquid dispensed is equal to the preselected volume less the anticipated spill volume, the microcomputer signals the faucet to close, resulting in an accurate pour. In a another aspect, an improved beer dispensing head is provided. A spring-loaded conventional tap handle activates a sensor means in the head. A remote microcomputer receives a signal from the sensor and produces a controlling signal to activate a remote electro-pneumatic valve. The valve actuates a double-acting cylinder located in the head which in turn actuates the faucet, dispensing beer.
Patent CA-2123733-C (CA)
Title: Fuel shut-off solenoid pull-in coil relay
Inventor: HADDICK BRIAN JAMES
IPC: F02N11/08
Filed: 1994-05-17
Granted: 1999-08-03
Abstract: The pull-in coil of a fuel shut-off solenoid on an engine is connected to a relay which in turn is connected to the engine starting circuit.  The relay is connected through the oil pressure light switch which opens after a short period of time as the result of a change in oil pressure as the engine is being cranked.  Solenoid overheating is avoided since the relay pull-in coil current is cut off as soon as the oil pressure rises.