baber/WOPTO huggingface dataset:
Patent CA-2091508-C (CA)
Title: Process to separate inorganic sludges containing non-volatile hydrocarbons
Inventor: GOSSEL CHRISTIAN
IPC: C10C3/00
Filed: 1993-03-11
Granted: 1999-05-04
Abstract: A process that can break down mixtures of water, solids, non-volatile hydrocarbons and other accompanying substances into their primary constituents employs solvent extraction such that the water, which is to be recycled, does not contain any solids at all.  The process makes it possible to process and break down oil-bearing sludge that accumulates during the hot water process of tar sands extraction, and which is stored in settling ponds and constitutes a permanent danger to the environment.  The process lowers the proportion of solids in the recycled water to nearly zero, which permits sedimentation within a reasonably short period of time.  The process is environmentally friendly and achieves high yields in bitumen separation with low energy and operating costs.
Patent CA-2095415-C (CA)
Title: Non-migrating 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidine 1,3,5-triazine derivatives as polymer stabilizers
Inventor: GALBO JAMES P
IPC: C08G18/38
Filed: 1993-05-03
Granted: 2004-08-10
Abstract: 1-Hydrocarbyloxy-2,2,6,6-tetramethylpiperidine derivatives of s-triazines having functional groups such as hydroxy, amino, carboxy, epoxy, isocyanate or the like present are capable of chemically bonding with polymer substrates having anhydride, epoxide, alkoxymethylmelamine or isocyanate moieties present. This chemical bonding prevents migration or loss of the stabilizer during subsequent processing or end-use application of the stabilized polymer. The derivatives of the following formulae form one aspect of the invention:   (see formula I) (see formula II) (see formula III) (see formula IV) (see formula V) (see formula VI) (see formula VII) (see formula VIII) (see formula IX) (See Formula X) (See Formula XI) wherein E1, E2, E3 and E4 are independently alkyl of 1 to 4 carbon atoms, or E1 and E2 are independently alkyl of 1 to 4 carbon atoms and E3 and E4 taken together are pentamethylene, or El and E2; and E3 and E4 each taken together are pentamethylene, R1 is alkyl of 1 to 18 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, a bicyclic or tricyclic hydrocarbon radical of 7 to 12 carbon atoms, phenylalkyl of 7 to 15 carbon atoms, aryl of 6 to 10 carbon atoms or said aryl substituted by one to three alkyl of 1 to 8 carbon atoms, R2 is hydrogen or a linear or branched chain alkyl of 1 to 12 carbon atoms, R3 is alkylene of 1 to 8 carbon atoms, or R3 is -CO-, -CO-R4-, -CONR2-; or -CO-NR2-R4-, R4 is alkylene of 1 to 8 carbon atoms, R5 is hydrogen, a linear or branched chain alkyl of 1 to 12 carbon atoms, or (see formula XII) or when R4 is ethylene, two R5 methyl substituents can be linked by a direct bond so that the triazine bridging group -N(R5)-R4-N(R5)- is a piperazin-1,4-diyl moiety, R6 is alkylene of 2 to 8 carbon atoms or R6 is (see formula XIII) with the proviso that Y is not -OH when R6 is the structure depicted above, A is -O- or -NR7- where R7 is hydrogen, a straight or branched chain alkyl of 1 to 12 carbon atoms, or R7 is (see formula XIV) T is phenoxy, phenoxy substituted by one or two alkyl groups of 1 to 4 carbon atoms, alkoxy of 1 to 8 carbon atoms or -N(R2)2 with the stipulation that R2 is not hydrogen, or T is (See Formula XV) X is -NH2, -NCO, -OH, -O-glycidyl, or -NHNH2, and Y is -OH, -NH2, -NHR2 where R2 is not hydrogen; or Y is -NCO, -COOH, oxiranyl, -O-glycidyl, or -Si(OR2)3; or the combination R3-Y- is -CH2CH(OH)R2 where R2 is alkyl or said alkyl interrupted by one to four oxygen atoms, or R3-Y- is -CH2OR2.
Patent CA-2095506-C (CA)
Inventor: DAVISON MARK A
IPC: A61B17/32
Filed: 1993-05-04
Granted: 2004-08-10
Abstract: An endoscopic surgical apparatus capable of ligation and division. The apparatus has a frame and a tubular shaft attached to said frame. Also attached to the frame is a handle. The apparatus has ligating means and cutting means. Actuation means are mounted to the apparatus for actuating both the ligating means and the cutting means.      The apparatus has a clutch means capable of enabling the actuating means to switch between a first mode for actuating the ligating means and a second mode for actuating the cutting means. The cutting means is preferably an extendable J-hook and blade assembly. The cutting means and ligating means are preferably rotatable with respect to the frame. The ligation and division apparatus may be used to ligate and cut blood vessels or tissue in a mammalian body cavity during a surgical procedure.
Patent CA-2104493-C (CA)
Title: Ultracentrifugal disintegrator and its use for the cryocomminution of heat sensitive material
Inventor: ORSOLINI PIERO
IPC: B02C13/14
Filed: 1993-08-20
Granted: 2004-06-15
Abstract: The ultracentrifugal disintegrator includes a device for cooling the annular zone (7), extending from the outer face (8) of the rotor (4) to the inner face (9) of the sieve (5), by feeding a gaseous coolant to the upper part of the zone (7), vertically with respect to said zone (7) Such a disintegrator is used for the cryocomminution of heat sensitive material.
Patent CA-2107930-C (CA)
Inventor: HODAN JOHN A
IPC: D01D5/34
Filed: 1993-10-07
Granted: 2000-07-11
Abstract: Flow distribution plate sets form an element of a spin pack which has a spinneret for spinning synthetic fibers from one or more liquid polymer streams. The plate sets include at least one patterned plate and for each patterned plate, at least one boundary plate. The patterned plate has at least one flow distribution pattern stenciled therein by cutting through. The boundary plate is stacked sealingly adjacent to the pattern plate and has cut-through portions to form at least one flow-through channel to allow fluid flow through the patterned plate and solid portions where the patterned plate is cut through to accomplish fluid flow in a direction transverse to the flow in the flow-through channel. The liquid polymer streams flow as discrete streams through the flow distribution plate sets to the spinneret.
Patent CA-2112139-C (CA)
Title: Low fat frozen whipped topping
Inventor: GONSALVES ALEXANDER A
IPC: A23G9/32
Filed: 1993-12-22
Granted: 2004-10-05
Abstract: A low-fat, frozen whipped topping having a fat content of 8 to 15% and which is free of milk solids and phosphate salts is formulated using weight ratios of from 1.4 to 2.2 parts chemical emulsifier and 5.0 to 6.0 parts sodium caseinate per 100 parts fat. A low-fat, non-dairy, frozen whipped topping can be prepared employing the teachings of this invention.
Patent CA-2112742-C (CA)
Inventor: JOHANSSON LARS GUNNAR
IPC: B22D11/103
Filed: 1992-07-01
Granted: 2005-04-26
Abstract: In a continuous casting machine for casting a steel strip, the liquid steel is fed onto a cooled endless belt (11) through a tundish (13) and a tube-formed rotatable distributor (15). The distributor has a row of side outlets (20) from which streams of liquid steel fills a pool (24) of liquid steel against the steel belt (11).  The liquid steel flows from the pool through a clearance (25) against the steel belt. A control system operates to maintain the level of liquid steel constant in the distributor and to turn the distributor in response to the actual thickness of the cast steel strip.
Patent CA-2115484-C (CA)
Title: Polymeric biocidal composition and method for making same
Inventor: WELLINGHOFF STEPHEN T
IPC: A01N25/34
Filed: 1994-02-11
Granted: 2000-04-11
Abstract: A process incorporating chlorine dioxide precursors into a polymer or oligomer film that is coated onto various substrates. Controlled release is accomplished by absorption of moisture from the environment. An amine (primary, secondary, or tertiary amines substituted with 2-hydroxy or 2-carboxyamido ethylene groups) is dissolved or suspended into a melt consisting of monomers capable of strong hydrogen bonding. An apolar phase containing a water hydrolyzable acid anhydride or silane terminated acid is then blended with the polar amine containing phase to produce a two phase system of arbitrary degree of dispersion. Reacting dry chlorine dioxide or chlorine dioxide solutions in apolar solvents with the oligomer or polymer film produces an iminium chlorite salt. The chlorine dioxide is released when the iminium chlorite loaded polymer is hydrated by ambient moisture.
Patent CA-2116079-C (CA)
Inventor: COWAN BENJAMIN
IPC: A47C3/18
Filed: 1994-02-21
Granted: 2005-12-27
Abstract: A chair comprises a base with a fixed stem extending vertically from the base and a track member mounted to the top of the stem. The track member is a segment of a circle, the center of which is forward of the chair and coincident with either the knee or ankle of the person utilizing the chair.      A carriage having wings which are concentric with the track slides in the track. A seat is mounted on the carriage.
Patent CA-2122868-C (CA)
Title: Process for the patterned metallisation of structured printed circuit boards
Inventor: HORN KLAUS
IPC: G03F7/40
Filed: 1994-05-04
Granted: 1997-05-13
Abstract: Described is a process for the patterned metallisation of structured  printed  circuit  boards  in  which  the  fully structured printed circuit board is covered with a solder stop mask, with the solder contact locations being left open, the solder stop mask is heated under such conditions that complete hardening does not yet occur and the copper surface of the printed circuit board is practically not oxidised, metal is deposited out of an aqueous bath at the exposed  solder  contact  locations  and  after  the  metal deposit operation the mask is heated sufficiently long to a sufficiently high temperature that the mask is completely hardened throughout.   The incomplete pre-hardening step prevents the solution infiltrating under the mask in the metallisation operation and thereby loosening the adhesion thereof.
Patent CA-2122957-C (CA)
Inventor: SMITH DONALD ALEXANDER
IPC: F16L19/06
Filed: 1994-05-05
Granted: 1999-01-19
Abstract: There  is described a method and apparatus  for connecting the end of coiled tubing to a downhole tool string, comprising a first tubular housing having a first uphole and a second downhole end and a bore formed therethrough for a length of coiled tubing, a second tubular housing adapted for releasable  connection to the downhole end  of  the  first housing, the second housing having a first uphole and a second downhole end and a bore formed therethrough for receiving the length of coiled tubing at least partially into the second housing, slips adapted to at least partially surround the coiled tubing and having on an inner surface thereof raised projections for penetrating a contiguous surface of the coiled tubing  for  connection  thereto,  the  slips  additionally including connectors to interlock with cooperating connectors on the second housing for a non-rotatable torque transmitting connection therebetween,  and a force transmitting member disposed between the slips and the first housing to maintain the slips in compressive contact with the coiled tubing.
Patent CA-2125424-C (CA)
Inventor: BERNSTEIN LAWRENCE
IPC: H04L12/56
Filed: 1994-06-08
Granted: 1998-06-30
Abstract: In a telecommunications network, outgoing calls from a particular subscriber location for each of a plurality of telecommunications applications are delivered via a single access link to a single point of distribution through which the subscriber location is caused to be connected, as a function of the telecommunications application type, to an appropriate intelligent network element (INE) server. Additionally, incoming calls of the various application types and directed to a particular directory number are delivered to a single point of collection associated with its NPA-NNX and connections for those calls are caused to be made from the point of collection to an appropriate INE server, as a function of the telecommunications application type and the directory number in question. Communications within the network are by way of asynchronoustransfer mode (ATM) cells.
Patent CA-2126208-C (CA)
Inventor: SUZUKI KUNIO
IPC: A61P3/04
Filed: 1992-12-17
Granted: 1997-08-19
Abstract: a présente invention concerne un agent anti-obésité constitué de cholest-4-ène-3-one, représentée par la formule suivante : (voir fig.1) en tant que composante efficace. L'agent anti-obésité de la présente invention est utile en raison de son effet inhibiteur sur l'augmentation de poids et l'accumulation de graisse. Cette invention comprend également un ingrédient médicinal incluant la cholest-4-ène-3-one en tant que composante efficace et un excipient pharmaceutiquement acceptable, ainsi que des méthodes de prévention et de traitement de l'obésité comportant l'administration d'une quantité efficace de cholest-4-ène-3-one à une personne.
Patent CA-2134365-C (CA)
Title: Self-adjusting rf repeater arrangements for wireless telephone systems
Inventor: BEASLEY ANDREW
IPC: H04B1/40
Filed: 1994-10-26
Granted: 2000-10-03
Abstract: An RF repeater arrangement for exchanging transmit and receive signals between a handset and a base station in a wireless telephone system automatically componsates for attenuation losses. The RF repeater arrangement includes first and second RF repeater parts connected by a signal conduit, the first part interfacing with the base station and having a signal level detector for detecting the level of the transmit signal, a microprocessor controller for quantizing and encoding the signal level detected by the level detector and a modulator for modulating the signal level data and outputting the modulated signal level data to the signal conduit. The second part has a demodulator for demodulating the signal level data, an amplifier for amplifying the transmit signal, a signal level detector for detecting the level of the transmit signal amplified by the amplifier, and a microprocessor controller for comparing the demodulated signal level data and the amplified signal level and correspondingly adjusting the amplifier to counteract attenuation of the transmit signal and the receive signal along the signal conduit.
Patent CA-2136594-C (CA)
Inventor: WELDLE HELMUT
IPC: F41A3/86
Filed: 1994-11-24
Granted: 2000-07-04
Abstract: A firearm, especially hand-held.   A barrel assembly (2, 18, 36, & 54) travels back and forth essentially in or opposite the direction the weapon is fired in between a forward and a rear stop (44, 48, & 50) on or in a frame or grip assembly (12). A breech assembly (6 & 32) that travels back and forth essentially in the same direction as the barrel assembly between a forward and closed position and a rear and open position, traveling out of the closed position and into the open position against the force of a closure spring (16) and, at the end of its return stroke, the frame or grip assembly or a component (64 or 64') resting off it.   A buffering spring (66) tensions the barrel assembly toward the forward stop (44 or 50) and buffers its contact with the rear stop (44 or 48). The closure spring (16) and the buffering spring (66) are correlated to ensure that the breech assembly will strike the frame or grip assembly or the component supported off it essentially at the instant the barrel assembly comes into contact with the forward stop
Patent CA-2136638-C (CA)
Title: New method of combatting insect eggs and ovicidal compositions
Inventor: HAFEZ AYAD
IPC: A01N31/00
Filed: 1993-05-21
Granted: 2003-10-28
Abstract: A method of protecting a crop by killing eggs of insects, or insects at the egg stage, the insects being detrimental to the crop, said method comprising applying to a locus where the eggs of insects are located or are expected to be located or are expect-ed to be going to be located an effective amount of a compound of formula (I):  R1-X-N(R2)-C(R3)=Z-R4, or a salt thereof, wherein R1 represents an optionally substituted 5-6 membered aromatic hetero ring containing nitrogen atom, except a non-sub-stituted 2-pyridyl; X represents an optionally substituted alkylene or alkylidene; R2 represents hydrogen, carbamoyl, mono or di alkyl carbamoyl, thiocarbamoyl, mono or di C1-5 alkylthiocarbamoyl, sulfamoyl, mono or di C1-5 alkylsulfamoyl, an optionally substituted alkyl, alkenyl or alkynyl, an optionally substituted cycloalkyl or cycloalkenyl, optionally substituted aryl or -Y-R5; Y represents O, S(O)n, CO, CS or CO2: n represents 0, 1 or 2; R5 represents a hydrogen, optionally substituted alkyl, alkenyl or alkynyl, optionally substituted cycloalkenyl or aryl; R3 represents a hydrogen, an optionally substituted alkyl, alkenyl or alkynyl, optionally substituted cycloalkyl or cycloalkenyl; R4 represents a cyano or a nitro, and Z represents CH or N.
Patent CA-2141441-C (CA)
Inventor: WEST LAMAR E JR
IPC: H04N7/10
Filed: 1993-07-20
Granted: 2004-07-13
Abstract: A polarity reversing DC power inserter circuit (204) for remotely located equipment such as interdiction apparatus or other signal control apparatus used in a cable or community antenna television (CATV) signal distribution system. A power transformer circuit (210) receives a 117 volts AC power source at a subscriber's premise and converts it to a lower voltage positive and negative DC. A polarity reversing circuit (204) comprising switching transistors (220,221) and a 50% duty cycle multivibrator (230) switches between the lower voltage DC at a frequency less that 10 Hz so as to avoid shock hazards associated with normal alternating current, while alternating sufficiently often to avoid electrolysis and corrosion problems associated with use of direct current (DC) powering. The reversing polarity DC power is then inserted into a cable drop (115) to be provided uplink to the signal control apparatus. At the signal control apparatus, the polarity reversing DC is converted into DC by a power utilization circuit, and then utilized to power the signal control apparatus.
Patent CA-2148290-C (CA)
Inventor: ERICKSON GARY L
IPC: C30B29/52
Filed: 1995-05-01
Granted: 2007-01-09
Abstract: This invention relates to a hot corrosion resistant nickel-based superalloy comprising the following elements in percent by weight: from about 11.5 to about 13.5 percent chromium, from about 5.5 to about 8.5 percent cobalt, from about 0.40 to about 0.55 percent molybdenum, from about 4.5 to about 5.5 percent tungsten, from about 4.5 to about 5.8 percent tantalum, from about 0.05 to about 0.25 percent columbium, from about 3.4 to about 3.8 percent aluminum, from about 4.0 to about 4.4 percent titanium, from about 0.01 to about 0.06 percent hafnium, and the balance nickel plus incidental impurities, the superalloy having a phasial stability number N V3B less than about 2.45. Single crystal articles can be suitably made from the superalloy of this invention. The article can be a component for a gas turbine engine and, more particularly, the component can be a gas turbine blade or gas turbine vane.
Patent CA-2149508-C (CA)
Inventor: TEMPLETON COLIN WILLIAM GEORGE
IPC: A01C1/02
Filed: 1995-05-16
Granted: 2005-06-14
Abstract: A method of assessing the viability of plant material, such as a seedling. The method includes maintaining the plant material in isolation in a substantially gas tight enclosure to trap gases evolved from the plant material. A sample of the trapped gases is removed and the concentration of at least one volatile gas in the sample is measured by contacting the sample with a colorimetric reagent that changes colour on contact with the volatile gas. The viability of the plant material is assessed on the basis of the colour change of the colorimetric reagent. An apparatus is also disclosed which permits simple field evaluations to be conducted according to the method.
Patent CA-2157143-C (CA)
Inventor: GERICKE ROLF
IPC: C07C311/16
Filed: 1995-08-29
Granted: 2009-02-17
Abstract: Alkylbenzoylguanidines of the formula I (See formula I) in which A, R1, R2 and R3 have the given meanings, and their physiologically harmless salts, exhibit antiarrhythmic properties and act as inhibitors of the cellular Na+/H+ antiporter.
Patent CA-2167298-C (CA)
Inventor: NORLING LARS-ERIK
IPC: A22B7/00
Filed: 1994-07-15
Granted: 2005-01-25
Abstract: The invention provides a plant for separating a part from a carcass comprisi ng a main conveyor (1) for transporting the carcass (2) hanging in a first meat-hook (4) or the like on the main conveyor. According to the invention a separate work station (3) is arranged near the main conveyor (1) for separating and forwarding the separated part. The work station comprises a second meat-hook (5) or the like for attachment to the part to be separated and means (6, 6') for moving the seco nd meat-hook. This movement may be determined arbitrarily either through a predetermined timing program controlling the moving means o r directly by an operator.
Patent CA-2168365-C (CA)
Title: Enduiseuse a courts temps d'arret
Inventor: BUSKER LEROY H
IPC: B05C11/04
Filed: 1994-07-12
Granted: 2001-01-16
Abstract: Applicateur (10) à temps de résidence court utilisé pour appliquer une matière de revêtement sur une bande (W) maintenue par un élément de support (12). Cet applicateur (10) comprend un boîtier (14) qui définit une zone d'application (16) présentant des extrémités en amont (18) et en aval (20). La zone d'application (16) s'étend transversalement (CD) au sens machine et au sens de la bande (W) et elle est reliée à une source de matière de revêtement (22) de sorte que cette dernière (22) s'applique sur la bande (W) lorsque celle-ci traverse la zone d'application (16). Un tuyau allongé (24) est placé dans la zone d'application (16) et s'étend transversalement (CD) au sens machine dans la zone d'application (16). Le tuyau (24) définit au moins un orifice (26) par lequel la matière de revêtement peut passer. Le tuyau (24) est connecté à la source de matière de revêtement (22) de sorte que la matière de revêtement s'écoule dans le tuyau (24) et traverse l'orifice (26) pour envoyer la matière de revêtement sur la zone d'application (16). Une palette (30) est fixée rigidement au tuyau (24) et s'étend dans le sens machine (MD) du tuyau (24) jusqu'à la bande (W) de sorte que la matière de revêtement qui sort de l'orifice (26) génère un biseau de déviation hydrodynamique (32) entre la palette (30) et la bande (W) qui réduit, dans la zone d'application (16), les tourbillons d'air entraînés. Une lame mesureuse (34) placée adjacente à l'extrémité aval (20) de la zone d'application (16) sert à mesurer l'excédent de matière de revêtement.
Patent CA-2170328-C (CA)
Inventor: FLATHAU ROBERT J
IPC: E04G11/10
Filed: 1996-02-26
Granted: 2006-06-06
Abstract: A concrete form having a frame with a first pair of outer frame members and a second pair of outer frame members. The first pair of outer frame members are disposed perpendicular to the second pair of outer frame members so that the first and second pairs of outer frame members define a substantially rectangular shape.     The concrete form has two inner frame members connected between two of the outer frame members, the inner frame members being spaced to define a rectangular bay area therebetween. The concrete form has a flat concrete-forming member fixed to the outer frame and a support member with a pair of end portions and a middle portion disposed between the end portions. The support member is connected to the first and second inner frame members so that the middle portion of the support member is spaced from the concrete-forming member by a first distance and so that the end portions of the support member are spaced from the concrete-forming member by a second distance smaller than the first distance.