baber/WOPTO huggingface dataset:
Patent CA-2025541-C (CA)
Title: Non-aqueous viscosified carbon dioxide and method of use
Inventor: HOLTMYER MARLIN D
IPC: C09K8/68
Filed: 1990-09-17
Granted: 1995-01-03
Abstract: A method of treating a subterranean formation is provided using a treating fluid comprising from about 0% up to about 80% by volume liquid carbon dioxide.  The remainder of the treating fluid comprises a viscous substantially anhydrous liquid which may be crosslinked by a metal ion source.  The treating fluid is formed by the addition of polymers or copolymers of dimethylacrylamide to the substantially anhydrous fluid.
Patent CA-2028324-C (CA)
Title: Method for the solvent extraction of zinc
Inventor: BOATENG DANIEL A D
IPC: C22B19/20
Filed: 1990-10-23
Granted: 2002-12-24
Abstract: Zinc is selectively extracted from zinc sulfate solutions that may also contain sulfuric acid and amounts of other metals with an organic extractant mixture containing both organic substituted phosphoric acid and organic substituted thiophosphinic acid. The phosphoric acids are preferably chosen from mono- and di-2-ethylhexylphosphoric acids and mixtures thereof, and the,phosphinic acids are preferably chosen from bis- 2, 4, 4-trimethylpentyl mono- and di-thiophosphinic acids. The use of an extractant mixture of the dithiophosphinic acid with mono- and di-2-ethylhexyl phosphoric acids or an extractant mixture of the dithiophosphinic acid with di-2-ethylhexylphosphoric acid is preferred. The pH during zinc extraction is controlled at a value in the range of about 1.3 to 5. Control of pH is carried out either by neutralization or by acid extraction with an organic amine-type~extractant. The acid content of the feed solution may be reduced by neutralization or acid removal by dialysis. The solvent extraction of zinc or zinc and acid from feed solution may be carried out co-, counter- or cross-currently in one or more stages. The preferred extraction method is dual-circuit, side-by-side, simultaneous zinc and acid extraction. The use of the mixed extractant for zinc is more effective than extraction with the component extractants by themselves.
Patent CA-2029046-C (CA)
Title: Sustained release compositions for treating periodontal disease
Inventor: DAMANI NALINKANT C
IPC: A61K9/00
Filed: 1990-10-31
Granted: 1995-03-28
Abstract: This  invention relates to compositions/devices and methods for treating diseases of the oral  cavity  in  humans  and  lower animals  using  polylactide/glycolide  compositions/devices  for releasing drugs in the oral cavity.
Patent CA-2031226-C (CA)
Title: Electrically powered linear heating element
Inventor: DEEVI SEETHARAMA C
IPC: A24F40/20
Filed: 1990-11-30
Granted: 1996-05-07
Abstract: A heating element for use within a smoking device which, without burning, heats a flavor-generating medium within the device to produce an aerosol, vapor, or flavor, which the consumer may inhale.  More particularly, an electrically-powered heating element having a plurality of discrete resistive heating segments, only one of which is active at any given time.  In a preferred embodiment, the heating element is contained within the device so that the individual heating segments of the element are adjacent to a flavor-generating medium.  As each segment of the heating element is provided with power, the flavor-generating medium adjacent to that segment is heated, but is not burned.  This heating causes the flavor-generating medium to produce a flavor, aerosol, or vapor, which the consumer of the device may inhale.
Patent CA-2031382-C (CA)
Title: Hair treatment composition
Inventor: REID EUAN STUART
IPC: C08L83/04
Filed: 1990-12-03
Granted: 1995-09-19
Abstract: A shampoo composition contains surfactant together with a cationic derivative of guar gum and an insoluble non-volatile silicone present as emulsified particles having average particle size below 2µm.  The silicone is preferably incorporated as a pre-formed emulsion.
Patent CA-2041097-C (CA)
Title: Reciprocating brush for general surface cleaning, operated by the actual wash water
Inventor: GAITI GIORGIO
IPC: A46B13/06
Filed: 1991-04-24
Granted: 2003-08-19
Abstract: A brush for general surface cleaning comprises a casing rotatably housing a bladed impeller (8) with which a nozzle (9) is tangentially associated for the entry of the wash water, which then flows towards a cleaning member comprising at least one slide block (3) positioned to close the lower aperture of the casing and lowerly provided with a mass of bristles (31), and linked to the impeller shaft (7) in such a manner as to be subjected to reciprocating rectilinear movement transversely to said shaft (7).
Patent CA-2048311-C (CA)
Title: Polyarylene sulfide resin compositions
Inventor: KOSHIRAI ATSUNORI
IPC: C08L81/02
Filed: 1991-08-01
Granted: 2002-04-16
Abstract: A polyarylene sulfide resin composition obtained by melt-mixing a mixture comprising resin components comprising as main resins (A) a polyarylene sulfide resin and (B) a polyorganosiloxane graft copolymer obtained by graft-polymerizing one or more kinds of vinyl monomer containing at least an epoxy group-containing vinyl monomer onto a compound rubber in which a polyorgano-siloxane rubber and a polyalkyl (meth)acrylate rubber have been inseparably united with each other.        The composition of the present invention, whether it contains a filler or not, is excellent in compatibility between the polyarylene sulfide resin and polyorgano-siloxane graft copolymer. If this composition is extrusion-molded or injection-molded under the common molding conditions, it keeps its original dispersed and mixed condition without showing a phase separation.      Consequently, this composition has an excellent perform-ance that impact resistance also has been given to the polyarylene sulfide resin without largely injuring excellent properties inherent to the resin.
Patent CA-2053284-C (CA)
Inventor: LILJA JAN E
IPC: C12Q1/533
Filed: 1990-04-24
Granted: 2001-12-11
Abstract: A sample of whole blood is contacted with a reagent which by chemical reaction with glu-cose in the sample brings about a detectable dye concentration change (10) the size of which is de-termined as a measure of the glucose content of the sample. The sample is initially introduced un-diluted in a microcuvette having at least one cavi-ty for receiving the sample. The cavity is internal-ly pretreated with the reagent in dry form, and the chemical reaction takes place in the cavity.    Active components of the reagent comprise at least a hemolysing agent for exposing glucose contained in the blood cells of the sample for al-lowing total glucose determination, and agents taking part in tho chemical reaction and ensuring that the dye concentration change (10) takes place at least in a wavelength range (14) outside the absorption range (12) of the blood hemoglob-in. An absorption measurement is performed in said wavelength range directly on the sample in the cuvette. A pretreated disposable cuvette with such a reagent and a photometer are also de-scribed.
Patent CA-2059144-C (CA)
Title: Bisacylphosphine sulfides
Inventor: RUTSCH WERNER
IPC: G03F7/029
Filed: 1992-01-10
Granted: 2002-07-16
Abstract: Bisacylphosphine sulfides of formula I   (See formula I) wherein R1 is unsubstituted C1-C18alkyl or C1-C8alkyl which is substituted by phenyl, -CN, C1-C12alkoxy or halogen, C1-C18alkenyl, unsubstituted C1-C8cycloalkyl or C5-C8cycloalkyl which is substituted by C1-C12alkyl; C1-C12alkoxy or halogen, unsubsti-tuted C6-C12aryl or C6-C12aryl which is substituted by halogen, C1-C12alkyl or C1-C12alkoxy, or a 5- or 6-membered aromatic heterocyclic radical which contains oxygen, sulfur and/or nitrogen and is unsubstituted or substituted by halogen, C1-C4alkyl or C1-C4alkoxy, and R2 and R3 are each independently of the other unsubstituted C1-C18alkyl or C1-C8alkyl which is substituted by phenyl,halogen or C1-C12alkoxy, C2-C6alkenyl, unsubstituted C5-C8cycloalkyl or C5-C8cycloalkyl which is substituted by C1-C12alkyl, C1-C12alkoxy or halogen, unsubstituted C6-C12ary1 or C6-C12aryl which is substituted by C1-C12alkyl, C1-C12alkoxy, C2-C12alkoxyalkyl, C1-C4alkylthio or halogen, or a 5- or 6-membered aromatic heterocyclic radical which contains oxygen, sulfur and/or nitrogen and is unsubstituted or substituted by halogen, C1-C4alkyl or C1-C4alkoxy are suitable initiators for the light-induced polymerisation of compounds containing ethylenically unsaturated double bonds.
Patent CA-2062071-C (CA)
Title: Control of flow and production of water and oil or bitumen from porous underground formations
Inventor: MCKAY ALEXANDER S
IPC: E21B43/24
Filed: 1992-02-28
Granted: 2003-05-27
Abstract: An oil or bitumen-producing well which has undergone water coning with resultant production of substantially only water or a very reduced amount of oil is treated to restore oil production and to prevent water coning by introducing into the location of the oil or bitumen-producing formation which has undergone water coning or into the water-producing formation which gives rise to water coning, an oil-in-water emulsion under conditions such that the oil or bitumen in the oil-in-water emulsion is caused to become entrapped in the formation to create or generate a high oil or bitumen saturation plug to form a substantially water impermeable barrier at a substantial radial distance from the point of introduction or from the well from which the oil or bitumen is produced from said formation. In the broadest aspect of this invention, production or recovery of oil or bitumen produced or recovered in the form of an oil-in-water emulsion from a porous water containing and oil or bitumen producing formation is maintained and improved by maintain-ing the temperature of the produced oil or bitumen at a temperature not lower and preferably greater than Tc wherein Tc is the minimum temperature for the oil or bitumen, such as in the form of an oil-in-water emulsion, to flow through the porous water containing and oil or bitumen producing formation.
Patent CA-2064370-C (CA)
Title: Security arrangement for push button lock
Inventor: FISH AARON M
IPC: E05B17/20
Filed: 1992-03-27
Granted: 1998-12-08
Abstract: The  security  arrangement  prevents  unauthorized removal of the push button lock arrangement from a door on which it is installed.  The door has an inner surface and an outer surface and the push button lock arrangement includes a first housing for mounting on the inner surface and a second housing for mounting on the outer surface.  A first cover  plate  is  removably  mounted  on  the  first  housing adjacent the inner surface of the door, and a second cover plate is mounted on the second housing adjacent the outer surface of the door.   The security arrangement consists of co-operating elements mounted on the first cover plate and the second cover plate.
Patent CA-2067801-C (CA)
Title: Presser foot having an adjustable guide for sequins and ribbon
Inventor: ROWLEY CLARE J
IPC: D05B29/12
Filed: 1991-08-28
Granted: 1998-05-05
Abstract: A presser foot for use in sewing ribbon-like material (16) to a fabric sheet (14 ) includes a sole (12) and an adjustable ribbon/sequin guide assembly (18). The assembly includes a tubular guid e portio n (48), and defines, in connection with the sole, a needle dropping gap (32). The assembly is laterally movable, as a unit, by a nut (60), shank (54), and a U-shaped yoke (50) which is slidably received onto the shank (54). A stop guide pin (46) engages the asse mbly to prevent its rotation relative to the sole.
Patent CA-2079346-C (CA)
Inventor: JONCKHEERE LUC
IPC: H01R13/646
Filed: 1992-09-24
Granted: 2001-02-13
Abstract: A contact device for a cable comprising one or more inner conductors with inner insulating sheath and a common shield with outer insulating sheath, comprises a connection terminal for the shield and a connection element for each inner conductor. Further a guiding element and a stop element are provided for each inner conductor. The guiding element directs the corresponding inner conductor with its insulating sheath at the corresponding stop element in such a manner that during insertion of the cable into the contact device the inner insulating sheath is axially compressed by the stop element by the stop element. Seen from the corresponding guiding element each connection terminal for an inner conductor lies beyond the corresponding stop element. By application of this contact device it is no longer necessary to remove the inner insulating sheath.
Patent CA-2080579-C (CA)
Title: Logical track write scheduling system for a parallel disk drive array data storage subsystem
Inventor: RUDESEAL GEORGE ARTHUR
IPC: G11B20/18
Filed: 1991-04-05
Granted: 2000-01-25
Abstract: The parallel disk drive array data storage subsystem maps between virtual and physical data storage devices and schedules the writing of data to these devices. The data storage subsystem functions as a conventional large form factor disk drive memory, using an array of redundancy groups, each containing N+M disk drives. A  performance improvement is obtained by eliminating redundancy data updates in the redundancy group by writing modified virtual track instances into previously emptied logical tracks and marking the data contained in the previous virtual track instance location as invalid. Logical cylinders containing a mixture of valid and invalid virtual tracks are emptied by writing all the valid virtual tracks into a previously emptied logical cylinder as a background process.
Patent CA-2081790-C (CA)
Title: Method and apparatus for investigating earth formations
Inventor: CLARK BRIAN
IPC: G01V3/20
Filed: 1992-10-30
Granted: 1998-12-22
Abstract: Apparatus and method are disclosed for determining the resistivity of formations surrounding an earth borehole.          An electrically conductive metal body, such as a drill collar on a drill string, is movable through the borehole.  A transmitting toroidal coil antenna is disposed on the body and is energized to induce a current which travels in a path that includes the body and the formations.  An electrode is disposed on the body, and a first signal which depends on the electrical effect of the current on the electrode is measured to obtain an indication of the resistivity of the formations.          In a form of the invention, a second transmitting toroidal coil antenna establishes a second current in the body that travels in a path that includes the body and the formations, and a second signal is measured at the electrode.  A current monitor measures the axial current passing a monitor position on the body, to obtain a monitor current value.  A compensated indication of formation resistivity can then be obtained as a function of the first signal, the second signal, and the monitor current value.  A local communication system facilitates the ultimate communication of information to the earth's surface.
Patent CA-2084095-C (CA)
Title: Metal/composite hybrid orthopedic implants
Inventor: KELMAN DAVID CLARK
IPC: A61L27/00
Filed: 1991-05-31
Granted: 2002-04-02
Abstract: Metal/composite hybrid orthopedic implants are disclosed that are useful prosthetic devices. The hybrid implant comprises an intraosseous metal portion and an intraosseous composite portion. The composite portion is comprised of filaments nonli-nearly disposed to produce a structure of variable modulus along its length. Also disclosed are a variety of means to secure the me-tal portion to the composite portion. The method of making the various implants is also disclosed.
Patent CA-2085331-C (CA)
Title: Bag clamping device
Inventor: KADER KARL-WILHELM
IPC: B65B39/08
Filed: 1992-12-14
Granted: 1998-07-21
Abstract: A  bag  clamping  device  for  holding  a  bag  to  be  filled, especially a bag with side folds, on a filling neck, the bag clamping device being formed by: a first pair of clamps, each comprising clamping members for holding opposed first bag wall segments on the filling neck, and a second pair of clamps each comprising  pairs  of  clamping  members,  the  pair  of  second clamping  members  comprising  first  surface  parts  which,  in pairs, rest against one another in such a way that any bag wall parts positioned in front of the end faces are gripped and held in the bag edge region, as well as second surface parts which are arranged at an angle relative to the first surface parts which are adapted to the end faces and guiding plates of the swung-out  expanding  flaps  for  the  purpose  of  holding  the remaining free bag wall parts tightly around the filling neck.
Patent CA-2090695-C (CA)
Title: Process of collecting and processing non-aqueous drip-liquids
Inventor: PAPING MAX GREGOR
IPC: F16N31/00
Filed: 1991-08-29
Granted: 2003-08-19
Abstract: A process for catching in a liquid catching cloth and processing non-aqueous drip-liquids, characterized in that the drip-li-quids to be processed is caught in an oily and non-aqueous liquids absorbing, water-repelling liquid catching cloth on a non-wov-en basis, incorporated into an envelope of a hydrophobic synthetic resin fiber fabric, which envelope with cloth is partitioned in a suitable manner in a number of tracks of fields; the enveloped liquid catching cloth with absorbed drip-liquid are collected, the collected enveloped liquid catching cloths are washed in a solvent for the drip-liquid, the drip-liquid is separated from the sol-vent, the drip-liquid so recovered is incinerated with power-generation and the cleaned enveloped liquid catching cloths may be used anew.
Patent CA-2096939-C (CA)
Inventor: EASTMAN DIANNE
IPC: A61M1/00
Filed: 1991-12-06
Granted: 1999-07-20
Abstract: A flexible impermeable drainage bag (11) for collecting biological fluid (urine). It includes a port (18) communicating with the drainage bag interior, and free-flowing, water-absorbing, water-swellable, water-insoluble, gel-forming polymer particles (20) disposed in said drainage bag. The polymer particles (formed of polyacrylamide) are capable of absorbing many times their weight of water to form expanded gel particles capable of substantially immobilizing toxic bacteria present in said drainage bag.
Patent CA-2098728-C (CA)
Inventor: NADLER MURRAY
IPC: C10G50/00
Filed: 1991-12-06
Granted: 1996-12-10
Abstract: The present invention is directed to a process for treating hydro-treated naphtha which involves treating the naphtha over massive nickel catalyst followed by treating the naphtha over a metal oxide un-der conditions effective for removing impurities from said naphtha to result in substantially purified naphtha, wherein the metal oxide is se-lected from the group of metal oxides having a free energy of forma-tion of sulfide which exceeds said free energy of formation of plati-num sulfide, such as manganous oxide. In doing so, naphtha in the gas phase in the presence of hydrogen is passed over the manganous oxide at a temperature within the range of about 800 ° F and 1100 °F, a hydrogen to oil molar ratio between about 1:1 and 6:1, a whsv be-tween about 2 and 8, and pressure between about 50 and 300 psig; and the naphtha in the liquid phase at a temperature between about 300 °F and about 350 °F, and whsv less than about 5 is passed over the mas-sive nickel.  The naphtha in the liquid phase, at about ambient temper-ature, and at a whsv between 2 and 10, may also be passed over an Na Y mole sieve prior to treating over massive nickel and manganous ox-ide.  In addition the naphtha be being passed over alumina after treat-ing over massive nickel and prior to treating over manganous oxide in the liquid phase, at a temperature between 300 °F and 350 °F, and a whsv between 2 and 10. The naphtha may also be passed over a mole sieve water trap in the liquid phase at ambient temperature and at a whsv between 2 and 10, prior to treating over massive nickel  and man-ganous oxide.
Patent CA-2099503-C (CA)
Inventor: SCOTT HAMISH STEELE
IPC: C12N5/10
Filed: 1992-11-12
Granted: 2007-10-09
Abstract: The present invention relates generally to .alpha.-L--iduronidase and to genetic sequences encoding same.  More particularly, the present invention provides an is-olated nucleic acid molecule comprising a sequence of nucleotides which encodes or are complementary to a sequence which encodes a mammalian .alpha.-L-iduronidase or fragment or derivative thereof and to the recombinant enzyme encoded thereby. These molecules are useful in the investigation, diagnosis and treatment of subjects suspected of or suffering from .alpha.-L-iduronidase deficiency.
Patent CA-2111066-C (CA)
Inventor: BANICEVIC NEDO
IPC: F25D23/06
Filed: 1993-12-09
Granted: 2001-03-13
Abstract: A novel refrigerator door liner construction and sealing gasket provides an improvement in the insulating value of a refrigerator door in the area immediately adjacent the gasket. The door liner is arranged to have a raised abutment adjacent a flat sealing portion of the gasket. The door liner almost abuts an adjacent surface of a refrigerator cabinet liner when the door is closed so as to effectively form a labyrinth seal with the gasket sealing portion between the door liner and the cabinet liner. The labyrinth seal provided between the door liner and refrigerator cabinet liner reduces the heat stress on the gasket and improves the overall efficiency of the refrigerator.
Patent CA-2112946-C (CA)
Title: Cone crusher with adjustable stroke
Inventor: GANSER WILLIAM ABRAHAM IV
IPC: B02C2/04
Filed: 1994-01-06
Granted: 1998-08-04
Abstract: A gyratory crusher includes a bowl assembly with a concave crushing surface and a crusher head of conical shape which extends into the concave portion of the bowl assembly.  A central crusher axis extends centrally through the bowl assembly. The crusher head is mounted with a central head axis at an angular deviation with respect to the central crusher axis to intersect the crusher axis at an apex.   Crushing action is obtained by driving the crusher head to gyrate the angular offset of its central axis about the central crusher axis.   The gyratory crusher has an adjustable stroke of gyration.  Adjustability of the stroke is obtained by controllably varying the amount of angular deviation by which the crusher head gyrates about the central crusher axis.  The amount of angular deviation is controlled by an eccentric support bearing which gyrates a guide shaft of the crusher head about the crusher axis and which is adjustably mounted to move toward and away from the apex of gyration without also changing the position of the crusher head with respect to the apex.
Patent CA-2113867-C (CA)
Inventor: ALLEN MICHAEL SCOTT
IPC: G06F15/16
Filed: 1994-01-20
Granted: 1999-02-16
Abstract: A method and system for the enhanced efficiency of data transfers  from memory  to  multiple processors  in  a  data processing system. Each of the multiple processors has an associated buffer for storing data transferred via a common bus which couples the processors and memory together. Each of the multiple processors continually monitors the common bus and is capable of asserting a selected control signal in response to an attempted activity of another one of the multiple  processors  which  would  violate  data  coherency within the data processing system during a particular period of  time  following  the  attempted  activity.   Data  is transferred from memory to a buffer associated with one of the multiple processors and stored in the buffer in response to a request from the processor associated with the buffer prior to expiration of the particular period of time and prior to a determination of whether or not this transfer will result in a possible data coherency problem. The common bus is continually monitored during the particular period of time. Transfer of the data from the buffer to the processor is prohibited in response to a presence on the common bus of the  selected  control  signal  prior  to  expiration  of  the particular of time. Transfer of the data from the buffer to the processor is permitted in response to an absence on the common bus of the selected control signal.