baber/WOPTO huggingface dataset:
Patent CA-2091283-C (CA)
Inventor: BECK MARSHALL K
IPC: B08B15/02
Filed: 1993-03-09
Granted: 1999-08-03
Abstract: A fume hood includes a housing with wall panels disposed in side-by-side relation and a top member disposed substantially perpendicularly to the wall panels.  Connecting blocks which engage edge portions of adjacent panels connect these adjacent panels together.  Clip  members defining recesses for receiving edge portions of wall panels or of the top member secure the wall panels to the top member.
Patent CA-2092733-C (CA)
Title: Ltd4 receptor and photoaffinity probe
Inventor: ZAMBONI ROBERT
IPC: C07K5/072
Filed: 1993-03-26
Granted: 2002-08-27
Abstract: The leukotriene (LT)D4 receptor has been defined by radioligand binding studies as a member of the family of G-protein coupled receptors. In order to characterize this receptor a radioiodinated, photoactivable azido derivative of LTD4 ([125l]Azido-LTD4) has been synthesized for use as a photoaffinity probe. The characteristics of [125l]Azido-LTD4 specific binding to guinea-pig lung membranes were directly comparable with those of [s H]LTD4 specific binding to this tissue, in agreement with [125l]Azido-LTD4 binding to a G-protein coupled LTD4 receptor. [125l]Azido-LTD4 specific binding was saturable and of high affinity, enhanced by divalent cations and inhibited by sodium ions, but not potassium ions.  [125l]Azido-LTD4 specific binding was also strongly inhibited by the non-hydrolysable GTP analogue GTP.gamma.S with ATP.gamma.S being 100-fold less potent, suggesting this inhibition was due to selective interaction with a G-protein. The peptidyl leukotrienes competed for [125l]Azido-LTD4 specific binding with the following rank order of potency: LTD4 > LTE4 >> LTC4, while the non-peptidyl LTB4 was virtually inactive. Two structurally different LTD4-receptor antagonists, MK-571 and ICI 204,219, also competed for [1251]Azido-LTD4 specific binding to guinea-pig lung membranes, with nanomolar potency, whereas the leukotriene biosynthesis inhibitor MK-886 was 10000-fold less active. Photoactivation of [125l]Azido-LTD4 under equilibrium binding conditions revealed the selective radiolabeling of a 45 kDa protein in guinea-pig lung membranes, as visualized by SDS-PAGE and autoradiography. The photolabeling of this protein was inhibited in a concentration-dependent manner by all competing ligands, with the same rank order of potency and IC50 values as determined in the [125l]Azido-LTD4 binding assays.  In addition, the radiolabeling of this 45 kDa protein was saturable, modulated by cations, and inhibited by nucleotide analogues in an analogous way to [125l]Azido-LTD4 specific binding to guinea-pig lung membranes. It is therefore proposed that this novel 45 kDa protein represents the LTD4 receptor.
Patent CA-2094448-C (CA)
Title: Universally paintable passivated galvanized steel
Inventor: ANDERSON KARL P
IPC: C23C22/30
Filed: 1993-04-20
Granted: 2000-07-04
Abstract: This invention relates to aqueous epoxy resin-containing compositions which are particularly useful for depositing coatings on freshly galvanized metals in order to protect the metal against white rust and provide a surface which is universally paintable. The aqueous compositions generally comprise (A) an oxidized alkyl ester of a dibasic carboxylic acid, (B) trivalent chromium, (C) hexavalent chromium, (D) an organic resin component consisting essentially of at least one water-dispersible or emulsifiable epoxy resin or a mixture of resins containing more than 50% by weight of at least one water-dispersible or emulsifiable epoxy resin, and (E) water, said composition being further characterized as being substantially free of strontium chromate.      The wet coating on a metal substrate may be dried at a low temperature insufficient to cause curing of the epoxy resin and then be painted with any primer coating immediately or thereafter and with decorative topcoats for building materials, appliances, and automobiles. The invention also relates to metal substrates having the passivating coating on their surfaces.
Patent CA-2095223-C (CA)
Title: Topical compositions for transdermal delivery of prodrug derivatives of morphine
Inventor: BUNDGAARD HANS
IPC: A61P25/04
Filed: 1991-11-11
Granted: 2002-12-17
Abstract: The invention relates to topical composition for transdermal delivery of morphine. The composition comprises an effective amount of a morphine ester in association with a topical pharmaceutical carrier which gives solutions, suspensions, ointments, lo-tion, creams, gels, pastes, jellies, sprays and aerosols and/or together with a medical device. The invention also relates to the use of the morphine esters for the manufacture of a topical medicament for transdermal delivery for relieving pain or tranquilizing a mammal.
Patent CA-2100096-C (CA)
Title: Composition pour enlever les depots de chaux
Inventor: VOS EDDY
IPC: C11D3/20
Filed: 1992-01-21
Granted: 2001-01-16
Abstract: Compositions de nettoyage pour surfaces dures dont la composition totale en poids comporte 1 à 15 % d'un tensioactif non ionique ou des mélanges de celui-ci et 4 à 25 % d'acide maléïque. Les compositions ont un pH compris entre 1 et 4. Ces compositions sont efficaces dans l'élimination de dépôts de calcaire de surfaces dures.
Patent CA-2100440-C (CA)
Inventor: MELNYK JACK D
IPC: F24F13/08
Filed: 1993-07-13
Granted: 1999-09-28
Abstract: A floor, wall or ceiling register for a heating or cooling forced air system, the register comprising a grill to be supported on a floor over an air supply vent hole in the floor, wall or ceiling and a pair of facing guide plates secured to the grill and downwardly extending from it, to be inserted into that hole to maintain the grill in position over the hole, the improvement characterized in that the confronting surfaces of the guide plates are provided with parallel, similarly positioned rails to slidably receive a filter means for air passing through the grill.
Patent CA-2107608-C (CA)
Title: Multistandard video signal decoder
Inventor: EZAKI TADASHI
IPC: H04N7/088
Filed: 1993-10-04
Granted: 2003-12-09
Abstract: A data decoding device capable of decoding plural kinds of data superimposed in a vertical blanking period of a video signal. The device comprises means for detecting the line number and the intraline position in the vertical blanking period from vertical and hori-zontal sync signals and generating a line signal extract pulse, a data signal extract pulse and a reference signal extract pulse; binary circuit means for converting the video signal into a binary signal; PLL means for producing a data extract clock signal in synchronism with a clock reference signal extracted on the basis of the line signal extract pulse and the reference signal extract pulse; memory means supplied with the data extract clock signal and the binary signal in response to the line signal extract pulse and the data signal extract pulse, and storing the data signal therein; and control means capable of designating a plurality of durations for generating the respective extract pulses and a plurality of frequency division ratios in the PLL means. In the device, the circuits are usable in common to achieve curtailment in the production cost.
Patent CA-2111139-C (CA)
Title: Production method of foamed particles of polyolefin resin
Inventor: HINOKAWA AKIRA
IPC: C08J9/228
Filed: 1993-12-10
Granted: 1998-01-20
Abstract: Disclosed herein is a method of producing foamed particles of a polyolefin resin, which are prevented from fusion-bonding among the particles upon their production, and exhibit excellent moldability without impeding fusion bonding property among the foamed particles upon their molding.  The method includes dispersing the particles of the polyolefin resin along with a finely particulate silicate mineral as a dispersing agent and at least carbon dioxide as a foaming agent in a dispersion medium in a closed vessel, heating the dispersion to impregnate the resin particles with the foaming agent, and then releasing the resin particles and dispersion medium into an atmosphere of a pressure lower than the internal pressure of the vessel, thereby expanding the resin particles.
Patent CA-2113020-C (CA)
Title: Electrophotographic color printer, and a method of printing using such a printer
Inventor: KOBAYASHI SHINYA
IPC: G03G15/01
Filed: 1994-01-07
Granted: 1996-12-24
Abstract: The present invention relates to an electrophotographic color printer which exposes a photosensitive body to form an exposure pattern thereon.  Toner material of two different colors is then applied to the exposure pattern by developers. The toner materials are subsequently transferred to a recording medium and fixed thereon.  The toner materials are applied to the photosensitive body so that each of the two colors of toner materials have regions of two different thicknesses so they will have different thicknesses when applied to the recording medium.  When two of the thicker regions are adjacent, the fixing of the toner materials will cause the toner materials of the two regions to mix.  Thus, if the two adjacent thicker regions are of different colors, a third color will be produced.  Toner material of further colors may also be transferred to the recording medium, by applying further toner materials to the same or another photosensitive body using further developers.
Patent CA-2116727-C (CA)
Inventor: KELSAY CURTIS DWIGHT
IPC: B25G1/10
Filed: 1994-03-01
Granted: 1995-09-26
Abstract: A trowel handle is injection molded from two separate types of plastic.  An inner core is molded together  with  a  finger  guard  from  a  plastic providing a smooth surface of a first coefficient of friction with the user's hand.   The finger guard covers the metal tang of the trowel and protects the user's forefinger and thumb during troweling.   An outergrip  is molded  from a thermoplastic  rubber providing a soft, rubber-like surface of a second coefficient of friction with the user's hand.
Patent CA-2117059-C (CA)
Title: Pyrido-pyridazinone and pyridazinthione compounds
Inventor: WILHELM ROBERT S
IPC: C07D471/04
Filed: 1992-10-08
Granted: 2003-05-20
Abstract: Benzo or pyridopyridazinones and pyridazinthiones of formula (I) wherein: X  and Y are nitrogen or carbon, provided that at least one is carbon, and Z is oxygen or sulfur; R1 is hydrogen, lower alkyl, aryl, heteroaryl, or heterocycle lower alkylene; R2, R3, R4, R5 and R6 are independently selected from hydrogen, lower alkyl, halo, carboxy, alkoxycarbonyi, carbamoyl, aryl, acyl halide, thiomethyl, trilluoromethyl, cyano or nitro; or a pharmaceutically acceptable ester, ether or salt thereof, have been found to be useful as an anti-inflammatory, antiasthmatic, immunosuppressive, anti-allograft rejection, anti-graft-vs-host rejection, autoimmune disease or analgetic agent(s).
Patent CA-2117237-C (CA)
Title: Apparatus for recycling asphalt materials
Inventor: HENDRICKSON ARTHUR N
IPC: E01C19/10
Filed: 1994-03-08
Granted: 2004-11-30
Abstract: Apparatus for processing recyclable asphalt material includes an elongate drum having a generally cylindrical wall, a central axis, a first end and a second end, and being mounted for rotation about the central axis, with the central axis tilted at an acute angle so as to elevate one of the first and second ends relative to the other of the first and second ends, a heating chamber adjacent the first end of the drum, a plurality of breaker members arrayed generally parallel to the central axis of the drum and placed within the drum, a heat conduit extending along the drum coaxial with the breaker members, a heating arrangement for supplying heat to the heating chamber, ducting interconnecting the heating chamber, the breaker members, and the heat conduit serially such that heat from the heating chamber is conducted from adjacent the first end of the drum to adjacent the second end of the drum and is returned to adjacent the first end of the drum serially through the breaker members and the heat conduit, a feed arrangement for feeding the recyclable asphalt material into the drum, adjacent the elevated one of the first and second ends of the drum, and a rotational drive for rotating the drum, the breaker members and the heat conduit about the central axis so as to tumble the recyclable asphalt material within the drum, against the breaker members and against the heat conduit to process and deliver the desired recycled asphalt material adjacent the other of the first and second ends of the drum.
Patent CA-2117676-C (CA)
Inventor: COLES HARRY JAMES
IPC: C09K19/54
Filed: 1994-09-08
Granted: 2005-03-08
Abstract: A liquid crystal device wherein the liquid crystal material is a siloxane-containing compound characterised by the the general formula (see formula I) wherein R is a C1-10 alkyl or (see formula II) each R' is a C1-4 alkyl, T is (see formula III or IV) X is an alkyl or halogen-substituted alkyl group having at least one chiral centre, Y is F, m is 0, 1 or 2 and n is 10, 11 or 12.      Also claimed is a device wherein the liquid crystal material is disposed between a pair of substrates.
Patent CA-2117888-C (CA)
Inventor: TURNER HOWARD WILLIAM
IPC: C08F4/60
Filed: 1993-06-15
Granted: 2001-05-15
Abstract: L'invention concerne un procédé de polymérisation d'oléfines à hautes pressions dans un milieu de polymérisation à haute température utilisant un catalyseur de polymérisation d'oléfine ionique dérivé de la réaction d'un composé de métal de transition contenant du cyclopentadiényle et ayant un ligand d'alkyle ou de hydrure hydrolisable doté d'un activateur d'échange ionique. On a découvert que le système catalytique ionique est hautement actif à des températures de 160 °C ou plus, constituant un procédé capable de produire des produits polymères de propriétés chimiques et physiques voulues à des capacités de production élevées.
Patent CA-2118964-C (CA)
Inventor: BEKEDAM MARTIN
IPC: B01D19/00
Filed: 1994-03-14
Granted: 1995-07-25
Abstract: An atmospheric deaerator unit having a vessel divided into an atmospheric section and a low pressure section, the low  pressure  section  containing  steam  supply  line  for deaerating a water spray circulated from the atmospheric section through a water circulating line using a series of spray heads for spraying water into the low pressure section, the circulating line communicating between the low pressure section and the atmospheric section, the atmospheric section having a vent open to atmosphere with a vent condenser to purge  vented  non-condensible  gases  from  the  atmospheric section,  and,  the  low  pressure  section  being  pressure protected by a water column conduit communicating between the vessel sections to return overflow water and blow-through excess pressurized steam and vapor  from the  pressurized section to the atmospheric section, the unit being controlled by a steam control valve using pressure of the pressurized section or water temperature in the atmospheric section.
Patent CA-2119543-C (CA)
Inventor: KUENNEN ROY W
IPC: C02F1/32
Filed: 1994-03-21
Granted: 2003-05-27
Abstract: A point of use water purification system for home use is provided comprising a carbon block filter housed in a self-contained disposable pressure vessel for removing particulates and organic contaminants from water. The filter is provided with a pore-size distribution, a binder and a flow path which optimizes filtration performance and enhances microbiological kill rates obtained in a source of radiant energy which is used to kill microorganisms in the filtered water. The source of radiant energy comprises an ultraviolet discharge lamp having an elongate central axis and a diverter for providing a spiral plug flow of water about the discharge lamp. A flow regulator adjusts flow through the system for varying line pressure conditions to ensure adequate exposure of microorganisms to ultraviolet energy. A lamp control circuit conserves power and optimizes ultraviolet output. A diagnostic system includes a filter monitor which provides an automatic indication to the user when the filter has reached its end of life. The diagnostic system includes a radiation source monitor which provides an automatic indication to the user when the UV discharge bulb has malfunctioned. A filter quick-disconnect, a radiation source quick-disconnect and associated power safety interlocks protect the user and facilitate the safe and easy replacement of the disposable filter cartridge and ultraviolet discharge bulb.
Patent CA-2120994-C (CA)
Title: High impact polystyrene having improved gloss and impact characteristics
Inventor: KIM SEHYUN
IPC: C08F279/02
Filed: 1994-04-11
Granted: 2010-09-21
Abstract: A composition and process for making it are disclosed which teach multimodal particle size high impact monovinylaromatic polymer material having good gloss properties as well as high impact strength. The bimodal particle size rubber component of the material utilizes a small amount of a very large particle size rubber and a large amount of a very small particle size rubber. The unique and advantageous method of manufacturing the material involves introducing pre-existing pellets of a rubber/polymer blend into a monomer solution also containing a rubber capable of producing particles of a different range of sizes than that of the rubber component in the pellets, and polymerizing the monomer/dissolved pellet mixture into a multimodal particle size high impact material.
Patent CA-2123077-C (CA)
Inventor: GREENING ANTHONY B
IPC: G02B27/22
Filed: 1994-05-06
Granted: 2001-09-04
Abstract: A switching apparatus for use in a stereoscopic system for producing stereoscopic image paths from a single image path. The apparatus comprises a movable member having an opaque portion disposed in the single image path, and a switching device including at least one electromagnet responsive to signals received from a synchronizer in communication with an imaging apparatus. The electromagnet imposes a force on the movable member, to move the movable member between first and second positions, in which the opaque portion is in first and second locations respectively in the single image path, to alternately define on opposite sides of the opaque portion first and second image path portions of the single image path. The first and second image path portions have first and second spaced apart centroids respectively and the sizes of the first and second image path portions and distances between centroids thereof may be adjusted or varied to vary the amount of stereopsis.
Patent CA-2127094-C (CA)
Title: Oxidation of glycolic acid to glyoxylic acid using a microbial cell transformant as catalyst
Inventor: ANTON DAVID L
IPC: C12R1/66
Filed: 1993-01-06
Granted: 2002-10-15
Abstract: A process for the production of Glyoxylic acid from glycolic acid where an aqueous solution of about 200 to 2500 mM gly-colic acid at a pH of 7 to 10, at 0° to 40 °C is contacted with an effective amount of whole microbial cells (e.g., Aspergillus nidu-lans. Pichia pastoris, Hansenula polymorpha and Escherichia coli) which as a result of genetic engineering expresses the enzyme glycolate oxidase, (S)-2-hydroxy-acid oxidase (EC 1.1.3.15), to achieve an effective concentration range of 0.01 to about 100 IU/ mL and optionally expresses an endogenous catalase (EC 1.11.1.6).
Patent CA-2132127-C (CA)
Title: Wheel chair
Inventor: GUENTHER HENRY
IPC: A61G5/10
Filed: 1994-09-15
Granted: 1997-11-18
Abstract: A conventional wheel chair is modified by the provision of a safety system for automatically actuating the brakes of the wheel chair and lifting the foot rests when the weight of the patient is lifted from the seat. An overcentre spring arrangement is used to bias the brake mechanism into the braking position and is pulled over centre by a solenoid actuated by a switch under the seat. The actuation of the brake mechanism is communicated to the foot pedals by a connection cable which pulls a latch pin to release the spring biased foot pedal into the retracted position.
Patent CA-2132841-C (CA)
Title: Aminocyclohexylamides for antiarrhythmic and anaesthetic uses
Inventor: MACLEOD BERNARD A
IPC: C07C233/40
Filed: 1993-03-26
Granted: 2001-03-20
Abstract: This invention provides aminocyclohexylamides for use within methods of blocking sodium channels in cardiac or neuronal tissue and for use in the manufacture of medicaments to block sodium channels in cardiac or neuronal tissue. This invention also provides commercial kits comprising a pharmaceutical composition containing aminocyclohexylamides and, instructions for the use of the pharmaceutical composition for arrhythmia or for the inducement of local anaesthesia. The aminocyclohexylamides have the following formula:   (see formula I)
Patent CA-2133738-C (CA)
Inventor: ALT LARRY G
IPC: H05B37/02
Filed: 1993-04-07
Granted: 1999-06-29
Abstract: A control system for remotely controlling the application of electric power to a plurality of electrical apparatuses (10) includes a radio transmitting device (20) at a central location, and a radio receiving device (22) and a control unit (16) at each electrical apparatus location. During set-up of an electrical apparatus, programming signals designating the operating protocol or mode and the location of the electrical apparatus are transmitted by a radio programming signal to the control unit (16) associated with each electrical apparatus. Subsequently, timing reference signals containing a multiple-digit computer generated code designating the time of day and the time of sunrise and sunset on a particular day within particular latitudinal zones are transmitted by radio to the control units (16) of all electrical apparatus (10). Each control unit interprets and responds to the timing signals in accordance with previously received programming signals to control the application of electric power to the electrical apparatus in accordance with a predetermined operating protocol.
Patent CA-2135437-C (CA)
Title: Heating, ventilation and air conditioning unit with automatically controlled water spray air purification system
Inventor: SEWELL FREDERIC D
IPC: F24F8/142
Filed: 1994-11-09
Granted: 1999-04-06
Abstract: An  automatically controlled water  spray  air purification system  is  incorporated  in  a  heating,  ventilating  and  air conditioning unit serving a conditioned interior building space.          The purification system is operative to receive a portion of the return air that would normally be flowed through the unit, mix the received return air with a quantity of outside ventilation air, purify the return air/outside air mixture using water sprayed from a sump portion of the purification system, and flow the purified air into the unit for mixture therein with the balance of the return air being flowed therethrough to the conditioned space.          Damper structures on the unit and its associated air purification system permit selective variance of the percentage of the unit discharge air that has traversed the purification system.   The water spray portion of the purification system is served by a pump forcing water from a sump structure through a filter, with the spray water draining back  into the  sump after cleansing air traversing the purification system.  Upon a sensed demand therefor, an additive injector adds suitable chemical treatment material to the sump water, and a water pollutant monitor structure operates to backwash the filter upon sensing an undesirable pump back pressure increase or a buildup of particulate and gaseous pollutants in the sump water.   A dehumidification structure incorporated in the purification system is automatically controlled to remove moisture from purified air exiting the purification system.