baber/WOPTO huggingface dataset:
Patent CA-2057704-C (CA)
Title: Power sweeping tool
Inventor: BERGMAN RONALD E
IPC: E01H1/10
Filed: 1991-12-16
Granted: 1997-03-04
Abstract: The present invention provides a hand held, readily portable power sweeping tool.  The tool includes an elongate boom having a power generation means disposed at one end thereof and a power sweeping means disposed at the other end.   Power transmission means extends between the power generation  means  and  the  power  sweeping  means  for transmitting power generated by the power generation means to the sweeping means.  The sweeping means comprises a pair of drums mounted for rotation by the power transmission means,  the drums  including a plurality of pliant  fins extending radially outwardly therefrom.
Patent CA-2064764-C (CA)
Title: Low offset voltage unity gain buffer amplifier
Inventor: JOST STEVEN R
IPC: H03F3/34
Filed: 1991-06-18
Granted: 2001-05-15
Abstract: A buffer amplifier configuration simultaneously reduces d.c. voltage offsets through the signal flow path between its input (20) and output (50) and maintains a high input impedance and a low output impedance. In a preferred embodiment, high impedence is achieved by coupling the input transistor (201) collector (204) to a high impedance current source (210), which is coupled to one of the buffer's power supply rails (22). The emitter (206) of the input transistor (201) is coupled to the input terminal (20) and its base (202) to the base (212) of a like polarity bipolar output transistor (211), the emitter (216) of which is coupled to an output terminal (50) and the collector (214) of which is coupled to one supply rail (22). Since both the input and output transistors are of the same polarity type (so that they can be reasonably well matched during manufacture) and have their base-emitter junctions connected back-to-back between the input and output terminals, they impart effectively no Vbe-based d.c. offset voltage through the buffer. To ensure a high input impedance regardless of output load and output stage gain an isolating emitter-follower transistor stage (221) is preferably coupled between the collector (204) of the input transistor stage (201) and the base (212) of the output transistor stage (211).
Patent CA-2065026-C (CA)
Inventor: PINNAVAIA THOMAS J
IPC: B01J37/03
Filed: 1991-05-28
Granted: 1998-04-14
Abstract: Méthode de préparation et d'utilisation de compositions notamment un argile smectique et une base ou un précurseur de base réagissant avec les SOx dans un gaz de combustion chaud. La base ou le précurseur de base constituent, de préférence, la phase dispersée dans la phase en masse de l'argile. Les compositions sont chauffées pour former la base qui réagit avec les SOx dans le gaz de combustion.
Patent CA-2068491-C (CA)
Title: Breathable composite barrier fabric
Inventor: LANGLEY JOHN D
IPC: B32B5/18
Filed: 1992-05-12
Granted: 2001-08-07
Abstract: Abstract of the Disclosure A  three-layered composite barrier fabric has a middle layer of  a microporous polyolefin film,  in particular  polypropylene, and  top and bottom layers of spun-bonded polyolefin  webs,  also preferably made of polypropylene.   The three layers are  secured to  one  another  by  ultrasonic point  bonding  at  spaced-apart points.   The middle layer of the composite provides a barrier to liquids  such as water or blood while allowing water vapor to  be transmitted therethrough.   The outer layers provide for strength and overall characteristics of the fabric.   The resulting fabric provides breathability by allowing transmission of vapor such  as perspiration, consistent with stopping flow of liquid through the fabric.   The  outer layers provide effective strength and  other physical properties to enable their use in protective garments.
Patent CA-2070799-C (CA)
Title: Thioxanthenone antitumor agents
Inventor: MILLER THEODORE C
IPC: A61K31/39
Filed: 1992-06-09
Granted: 2005-11-29
Abstract: 1-[[(Dialkylamino)alkyl]amino]-4-substituted-thioxanthen-9-ones of the formula I      (wherein n is 2 or 3; R1, R2 and R3 are lower alkyl; and R4 is hydrogen, lower alkyl, lower alkoxy or halogen) are disclosed as antitumor agents. Compositions containing the thioxanthenones and methods of treating tumors and cancer in mammals with the thioxanthenones are also disclosed.
Patent CA-2071874-C (CA)
Inventor: HENNEUSE HENRY
IPC: E21B47/12
Filed: 1991-10-17
Granted: 1997-10-07
Abstract: Motorized injection head designed to turn a drill rod, comprising a motor (18) equipped with a main shaft (20).  According to the invention, the injection head (10) also comprises a measuring assembly, including at least one sensor (44 to 64), mounted on an extension of the main shaft (20) adjacent to the motor outlet (18).
Patent CA-2074910-C (CA)
Inventor: HAGEN GERRY A
IPC: D01D5/32
Filed: 1992-07-29
Granted: 1997-09-30
Abstract: A method of producing a multicomponent trilobal fiber includes providing a trilobal capillary defining three legs, three apexes and an axial center directing a first molten polymer composition to the axial center and presenting a second molten polymer composition to at least one of the apexes. The fiber produced has a trilobal core defining an outer core surface and a sheath abutting at least about one-third of the outer core surface.
Patent CA-2079917-C (CA)
Inventor: HERBERT WILLIAM G
IPC: C25D1/02
Filed: 1992-10-06
Granted: 1997-02-25
Abstract: An endless metal belt resistant to failure due to stress induced by bending contains an internal stress gradient of radially outward increasing compressive stress which opposes external stress applied to the belt. The belt can be made by an electroforming process.
Patent CA-2087435-C (CA)
Inventor: KORSMEYER RICHARD WILKER
IPC: A61K47/38
Filed: 1991-08-01
Granted: 1998-05-05
Abstract: Dispositifs pour la libération contrôlée de substances actives sous forme de comprimés, de capsules et de granules constitués d'une sous-structure poreuse entourée d'une ou de plusieurs membranes interfaciales.
Patent CA-2092990-C (CA)
Title: Ceramide and/or glycoceramide-based cationic dispersions
Inventor: DUBIEF CLAUDE
IPC: A61K8/68
Filed: 1992-07-30
Granted: 2005-07-26
Abstract: Cationic dispersion containing at least: 1) a ceramide or glycoceramide or a blend of natural or synthetic ceramides and/or glycoceramides of the formula (I) in which R1? is a C14?-C30? alkyl; R2? is hydrogen, (glycosyl)n?, (galactosyl)m? or sulphogalactosyl; n is 1 to 4, m is 1 to 8; R3? is a C15?-C26? hydrocarbonated radical or a C15?-C26? $g(a)-hydroxyalkyl in the case of natural ceramides and/or glycoceramides; 2) a compound of the formula (II) in which X is an anion and a) R4?, R5?, R6? are a C1?-C4? alkyl, R7? is a C22? alkyl, or b) R4? and R5? are a C1?-C4? alkyl and (i) R6? and R7? are a C10?-C22? alkyl; or (ii) R6? is a C22? alkyl, R7? is benzyl; or c) R4? is a C1?-C4? alkyl, R5? is an (alkyl and/or alkenyl)amidoethyl; R6? and R7? are 4,5-dihydroimidazole substituted in position 2 by a C13?-C21? alkyl and/or alkenyl.
Patent CA-2095624-C (CA)
Title: Method of targeting dna
Inventor: CAMERINI-OTERO RAFAEL D
IPC: C12Q1/68
Filed: 1991-11-08
Granted: 2000-06-13
Abstract: A method of forming a three-stranded DNA wherein each strand of the three-stranded DNA molecule is hybridized (that is, non-covalently bound) to at least one other strand of the three-stranded DNA molecule. The method comprises: contacting a recombination protein with a double-stranded DNA molecule and with a single-stranded DNA molecule sufficiently complementary to one strand of the double-stranded DNA molecule to hybridize therewith, which contacting is effected under conditions such that the single-stranded DNA molecule hybridizes to the double-stranded DNA molecule so that the three-stranded DNA molecule is formed. The method of forming a three-stranded DNA molecule can be used to specifically cleave a target DNA sequence, or to protect a double-stranded DNA molecule from modification.
Patent CA-2099074-C (CA)
Title: Disposable diapers
Inventor: IGAUE TAKAMITSU
IPC: A61F13/511
Filed: 1993-06-23
Granted: 1997-11-18
Abstract: A disposable diaper having a stretchable sheet laid on a basic diaper structure and  this  sheet  is  provided  at locations corresponding to urinary  organs  and  anus  with openings, respectively, which  are  independent  from  each other so as to prevent excrement from  spreading  over  the crotch zone of wearer and particularly to prevent excrement from clinging to urinary and genital organs.
Patent CA-2100472-C (CA)
Inventor: ALBERTSEN HANS
IPC: C12N15/12
Filed: 1992-01-16
Granted: 2009-04-07
Abstract: A human gene termed APC is disclosed. Methods and kits are provided for assessing mutations of the APC gene in human tissues and body samples.  APC mutations are found in familial adenomatous polyposis patients as well as in sporadic colorectal cancer patients. APC is expressed in most normal tissues. These results suggest that APC is a tumor suppressor.
Patent CA-2102946-C (CA)
Title: Insect lures
Inventor: BODEN CHRISTOPHER DAVID JOHN
IPC: A01N43/22
Filed: 1993-11-12
Granted: 2007-04-03
Abstract: Novel multi-component insect lures comprising (3Z,6Z)- dodecadien -12-olide and 13-methyl-(5Z,8Z)-tetradecadien-13-olide together with a fungal volatile selected from the group consisting of 1-octen-3-ol and 3-methylbutanol, wherein the amount of 11-methyl -(3Z,6Z)-dodecadien -11-olide in the composition is substantially zero, and a novel method for production of these pheromones, whereby the cost of active components may be reduced to economically advantageous levels. The lures are particularly effective in attracting saw-toothed grain beetles of group Coleoptera, Cucujidae, particularly species Oryzaephilus surinamensis.
Patent CA-2104840-C (CA)
Inventor: KNUDSEN RONALD DOUGLAS
IPC: C08F10/00
Filed: 1993-08-25
Granted: 1998-06-30
Abstract: Compositions et méthodes catalytiques. Les compositions sont préparées en mettant en contact un organonickel avec un azacarbyle cyclique. Il peut y avoir, facultativement, présence d'un ou de plusieurs promoteurs catalytiques dans les compositions. De plus, une ou plusieurs oléfines peuvent être mises en contact avec une ou plusieurs de ces compositions catalytiques pour former des produits d'oligomérisation et (ou) de polymérisation.
Patent CA-2106066-C (CA)
Inventor: YOSHINO AKIRA
IPC: H01M10/0587
Filed: 1992-09-14
Granted: 1997-08-12
Abstract: A secondary battery is disclosed, comprising an organic electrolytic solution contained in a casing and, disposed therein, a positive electrode comprised of a lithium-containing composite metal oxide as a cathode active material and a negative electrode com-prised of a carbonaceous material as an anode active material, wherein the positive and negative electrodes are arranged through a separator disposed therebetween and wherein the organic electrolytic solution has a water content of from 5 ppm to 450 ppm.  The secondary battery has excellent current efficiency, cycle charac-teristics, storage characteristics and safety and, therefore, can be advantageously used in various elec-tric devices and electronic devices.  The secondary battery of the present invention is especially advanta-geous in that a portable electronic device containing an IC element operative at a voltage of from 2.6 to 3.5 V can be drived by the use of a single battery of the present invention.
Patent CA-2123663-C (CA)
Inventor: STINE ALAN CHARLES
IPC: F16H37/04
Filed: 1994-05-16
Granted: 2000-02-29
Abstract: A compound transmission comprising a main section and and auxiliary section is disclosed. The main section provides five forward gears. The auxiliary section includes an auxiliary drive gear rotatably mounted on an input shaft, and two splitter gears rotatably mounted on an output shaft. Each of the auxiliary section gears is engaged with a corresponding auxiliary countershaft gear. A first splitter clutch rotatable with the input shaft couples either the auxiliary drive gear or the first splitter gear to the input shaft. A second splitter clutch rotatable with the output shaft couples either the first splitter gear or the second splitter gear to the output shaft. Other embodiments having an auxiliary drive gear rotationally fixed to the input shaft are also disclosed.
Patent CA-2132425-C (CA)
Title: Modular filing and storage system
Inventor: BILLINGHAM PAUL RICHMOND
IPC: B65D21/02
Filed: 1993-03-18
Granted: 2000-01-04
Abstract: A blank for constructing a box file, card index box, or the like which, in the made up form comprises a pair of similar half shells hinged together along a common edge, the blank including a pair of base members (2, 2a) each having outwardly extending side portions (4, 6, 16; 4a, 6a, 16a) on at least three sides which can be bent up to form side walls, with each side portion (4, 6; 4a, 6a) being joined to the adjacent side portion (16, 16a) by an inwardly foldable connection section (18, 20; 18a, 20a) which is adapted to form a right angled corner when the blank is folded into shape. An interconnecting or stacking system for file storing boxes is also provided which comprises a body (56; 58) having a slot or aperture (90; 102) and adapted to be mounted on the wall of the box and a generally "U-section" clip member (104), having a pair of legs (106) each of which is adapted to fit in one of the said slots (90; 102), whereby when two such connector members are suitably positioned in the adjacent walls of two corresponding boxes, they may be clipped together by inserting the legs of the clip member into the adjacent slots.
Patent CA-2133552-C (CA)
Title: Video time code synchronized robot control apparatus
Inventor: BOYLE WILLIAM M
IPC: H04N7/18
Filed: 1993-04-08
Granted: 1999-11-09
Abstract: The stored robot control program defining the path of movement of a robot arm (64) carrying a video camera (52) is synchronized to time code information recorded on a video tape. Video signals from the video camera are recorded on the video tape by a video tape recorder (74) along with time code information from a time code generator (70). A time code reader (76) decodes the time code information from the video tape or from the video tape recorder and supplies the decoded time code information to a robot controller (56). The time code information specifying the address of each frame of video signal is synchronized with the robot control program to unable the robot arm to be positioned in the same identical positional coordinates corresponding to the position of the robot arm when a particular frame of video signal was originally generated.
Patent CA-2133873-C (CA)
Title: Tnf inhibitors
Inventor: WALLACH DAVID
IPC: C07K16/42
Filed: 1994-10-07
Granted: 2010-08-03
Abstract: Ligands to Tumor Necrosis Factor receptors (TNF-Rs) which inhibit the effect of TNF but not its binding to the TNF-Rs, and ligands interacting with other receptors of the TNF/NGF family, are provided together with methods of producing them.
Patent CA-2137214-C (CA)
Inventor: FISHER LUKE
IPC: B65D83/00
Filed: 1994-12-02
Granted: 2004-02-03
Abstract: A wash bottle (10) for dispensing solvent comprises a squeezable plastics container (12) with a cap (16). A syphon tube (36) extends from near the bottom of the container to a nozzle (20) extending through the cap. As a continuation of the syphon tube is a valve body (34), whereby pressure above the solvent can be relieved and which closes when the bottle is squeezed for solvent to be dispensed via the syphon tube and nozzle.
Patent CA-2146367-C (CA)
Title: Calcium channel blocking polypeptides from heteropoda venatoria
Inventor: KELBAUGH PAUL R
IPC: A61P9/08
Filed: 1993-08-16
Granted: 1999-07-20
Abstract: Polypeptides isolated from the venom of the Heteropoda venatoria spider block ca lcium channels in cells of various organisms and are useful in blocking said calcium channels in cells, per se, in the treatm ent of calcium channel-mediated diseases and conditions and in the control of invertebrate pests.
Patent CA-2149888-C (CA)
Inventor: BARRON BENNY G
IPC: C08G59/56
Filed: 1993-10-26
Granted: 2003-12-23
Abstract: Polyurea polymers prepared from formulations including a polyisocyanate, a polyamine and a polyepoxide can have good heat stability and good physical properties. The polymers can be prepared in one step of admixing and heating at greater than 150 °C or in a two step process by first admixing the components at less than 130 °C and then postcuring the product at greater than 150 °C. The polyurea polymer, after postcuring, can have substantially no residual epoxy or oxazolidinone groups. These polymers were particularly useful for applications which require the exposure of the polyurea polymers to both intermittent high temperatures and high humidity. The polyurea polymers of the present invention can withstand higher temperatures than conventional polyurea polymers without blistering.
Patent CA-2150949-C (CA)
Title: Process for the refining of edible oils
Inventor: VAN DALEN JOSEF PETRUS
IPC: C11B3/14
Filed: 1993-11-16
Granted: 2000-07-18
Abstract: A method for refining triglyceride oils, preferably of natural origin. The method is particularly suitable for the refining of oils meant for direct consumption such as are sunflower oil, palm oil and olive oil. The method consists of a two-step treatment comprising a heating treatment and a subsequent stripping treatment. The stripping temperature is at 30-200 °C and the heating treatment consists of keeping the oil at an elevated but moderate temperature (30-180 °C). A stable oil results, which may be characterised further either by a specific flavour profile which may be appraised as natural and attractive or by the absence of any flavour.
Patent CA-2151372-C (CA)
Title: A rapid tree-based method for vector quantization
Inventor: ACERO ALEJANDRO
IPC: G10L19/02
Filed: 1993-12-29
Granted: 2005-04-19
Abstract: A fast vector quantization (VQ) method and apparatus is based on a binary tree search in which the branching decision of each node is made by a simple comparison of a pre-selected element of the candidate vector with a stored threshold resulting in a binary decision for reaching the next lower level. Each node has a preassigned element and threshold value. Conventional centroid distance training techniques (such as LBG and k-means) are used to establish code-book indices corresponding to a set of VQ centroids. The set of training vectors are used a second time to select a vector element and threshold value at each node that approximately splits the data evenly. After processing the training vectors through the binary tree using threshold decisions, a histogram is generated for each code-book index that represents the number of times a training vector belonging to a given index set appeared at each index. The final quantization is accomplished by processing and then selecting the nearest centroid belonging to that histogram. Accuracy comparable to that achieved by conventional binary tree VQ is realized but with almost a full magnitude increase in processing speed.
Patent CA-2153233-C (CA)
Title: Distributeur de liquide ameliore
Inventor: BANKS STEWART
IPC: A47K5/12
Filed: 1994-01-04
Granted: 2000-05-16
Abstract: L'invention concerne un distributeur de fluide (20) conçu pour distribuer du fluide en provenance d'une poche (200) présentant un passage de décharge s'étendant le long d'une voie tortueuse. Le distributeur (20) est constitué d'une station de distribution dans laquelle est prévu un mécanisme de distribution qui, dans un mode de réalisation, comprend un plot de repos (80) d'un côté de la voie d'écoulement du distributeur et un galet (62) cylindrique à cames (60) en face dudit plot de repos (80), de l'autre côté de la voie d'écoulement du distributeur. Le galet (62) est fixé à un support à galet (68) fixé pivotant à l'intérieur d'un bouton-poussoir creux (44). Ledit bouton-poussoir (44) est monté dans une ouverture située dans le couvercle frontal (14) du distributeur. Des ressorts (78) sont fixés audit support (68) et au couvercle frontal (14) qui maintiennent le galet (62) contre le compartiment flexible (132) de distribution de la poche (200). Lorsque le bouton-poussoir (44) est enfoncé, le galet (62) recouvre la partie supérieure du compartiment de distribution (132) flexible de la poche entre le galet (62) et le plot de repos (80) de manière à fermer hermétiquement le compartiment (130) en son extrémité supérieure. De plus, une pression supplémentaire sur le bouton-poussoir (44) fait descendre le galet (62) dans le compartiment de distribution (132) et provoque l'expulsion du fluide emprisonné dans ce dernier.
Patent CA-2154969-C (CA)
Title: Injection molding nozzle with radial vanes
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/27
Filed: 1995-07-28
Granted: 2005-02-01
Abstract: An integral injection molding nozzle having a highly thermally conductive intermediate portion formed between an inner core portion and an outer shell portion.      The inner core portion and outer shell portion are formed of materials having high strength which are wear and corrosion resistant. One of the inner core portion and outer shell portion has a plurality of spaced vanes extending radially across the highly conductive intermediate portion to provide more impact strength.
Patent CA-2157384-C (CA)
Title: Vecteurs particulaires synthetiques et procede de preparation
Inventor: SAMAIN DANIEL
IPC: A23L27/00
Filed: 1994-03-01
Granted: 2007-05-22
Abstract: La présente invention a pour objet un vecteur particulaire synthétique, caractérisé en ce qu'il comporte: un noyau hydrophile non liquide, une couche externe constituée au moins en partie de composés amphiphiles, associée au noyau par des interactions hydrophobes et/ou des liaisons ioniques. Elle a également pour objet un procédé de préparation d'un vecteur particulaire par encapsulation d'un principe actif ionisable, ainsi que les vecteurs pouvant être obtenus par ce procédé. Elle concerne enfin des compositions pharmaceutiques, cosmétologiques ou à usage alimentaire contenant de tels vecteurs.
Patent CA-2158156-C (CA)
Inventor: JOHNSON DAVID L
IPC: G01V1/44
Filed: 1994-11-17
Granted: 2005-05-10
Abstract: Methods and apparatus are provided for determining an indication of a nonlinear property of the formation. A sonic tool is used in a borehole to generate a signal having multiple cycles of a wave of a predetermined frequency. The amplitude of a tube wave resulting from the signal is measured.  The measured amplitude is then used to determine an indication of the nonlinearity of the formation according to a relationship which relates the measured amplitude to the amplitude of a second harmonic tube wave which is generated in the borehole by the tube wave of the predetermined frequency due to the nonlinear property of the formation. The indication of nonlinearity may then be utilized to give an indication of the relative consolidation of the formation surrounding the borehole.
Patent CA-2158346-C (CA)
Title: Non gellable bitumen/polymer compositions
Inventor: GERMANAUD LAURENT
IPC: C08L95/00
Filed: 1994-03-24
Granted: 2006-05-09
Abstract: Non-gellable, high-temperature storage-stable bitumen/polymer compositions produced by stirring a sulphur-cross-linkable elastomer, an antigelling admixture and a sulphur-donating coupling agent into a bitumen or bitumen mixture at 100 - 230  DEG C. Said admixture has formula R-X wherein R is a C2-50 monovalent organic radical and X is grouping (a), (b) or (c), wherein Y is H or a radical R. Said bitumen/polymer compositions may be used directly or in diluted form in a bitumen or bitumen mixture to form bitumen/polymer binders for producing road surfaces, coated materials and sealing coatings.