baber/WOPTO huggingface dataset:
Patent CA-2098069-A1 (CA)
Title: Diacylglycerol nicotinates, their preparation process and pharmaceutical compositions containing the same
Inventor: CORDI ALEX
IPC: A61P9/10
Filed: 1993-06-09
Abstract: Compounds of formula (I): <IMAGE>  in which:   R1 and R2, which are identical or different, represent a higher alkyl or higher alkenyl radical,   R3 represents a pyridyl or pyrazinyl radical, their isomers and their addition salts with a pharmaceutically acceptable acid. Medicaments.
Patent CA-2098511-A1 (CA)
Title: In-situ treatment system for inhibiting the formation of, and for alleviating, acidity in water
Inventor: CHESWORTH WARD
IPC: C02F1/467
Filed: 1993-06-16
Abstract: Treatment is described for acidity caused by water seeping down through a seam of acid-generating mineral such as pyrite. The pyrite oxidises through exposure to the atmosphere (as a result of mine workings). The treatment system creates an electrolytic cell, using the submerged portion of the pyrite seam as the cathode, the water in the aquifer as the electrolyte, and a body of scrap iron immersed in the water as the (sacrificial) anode. Contact rods are inserted into the pyrite seam, and are connected, via a cable, to the body of scrap iron, which is placed in a nearby pond. Hydrogen ions migrating to the cathode bubble off as hydrogen gas, thereby raising the pH. The acid generating reactions in the pyrite seam are inhibited, and acid concentrations in the already contaminated water in the pond and in the aquifer are reduced. In an alternative, the exposed beaches of pyrite in a tailings pond are provided with grids of metal mesh in place of the inserted rods.      The grids provide a better contact with the pyrite.
Patent CA-2101003-A1 (CA)
Title: Piston Mold
Inventor: PARSLEY CLOVIS L
IPC: F02F3/00
Filed: 1993-07-21
Abstract: A piston casting mold for casting all pistons in a single series with little weight variation one from the next, wherein spacers of fixed dimensions are employed to locate a dome-forming core of the mold a fixed distance from a stationary portion of the mold from one casting to the next.  Increasing or decreasing the dimensions of the spacer permits increasing or decreasing the as-cast weight of the piston.
Patent CA-2103234-A1 (CA)
Title: Antenna structure for personal locator beacon
Inventor: WILSON ROBERT F
IPC: H01Q1/27
Filed: 1993-11-16
Abstract: ABSTRACT         A retractile antenna assembly for an electronic apparatus  housed  within  a  casing  which  includes  a flexible  electrically  conductive  antenna,  an  antenna conduit in the casing shaped so as to guide the antenna into  and  out  of  a  coiled  position,  an  electrically conductive slidable contact affixed to the casing and in slidable contact with the antenna,  and an electrically conductive fastener coupling the slidable contact and a signal pad on an interior of the casing.
Patent CA-2108949-A1 (CA)
Title: Filter assembly
Inventor: MILLS STEVEN L
IPC: B01D29/11
Filed: 1993-10-21
Abstract: ABSTRACT      A filter assembly includes a disposable filter element, a reusable perforated supporting core, and first and second end caps.
Patent CA-2109035-A1 (CA)
Inventor: AKHTAR MASOOD
IPC: A61N1/362
Filed: 1993-10-22
Abstract: An algorithm for classifying cardiac arrhythmias comprising multiple stages and dual chamber sensing. A first stage includes the steps of comparing ventricular and atrial rates and declaring that the heart is in atrial tachycardia or atrial fibrillation on the one hand, or that the heart is in ventricular fibrillation on the other hand. The second stage is entered if no determination is made in the first stage and, in particular, when the atrial rate equals the ventricular rate. A third stage is entered in which the heart is paced (ventricular, atrial or both) at a predetermined rate for a set period of time. Cardiac rhythm classification is made based on heart responses during and after pacing.
Patent CA-2110098-A1 (CA)
Title: Air conditioning and refrigeration methods and apparatus utilizing a cryogen
Inventor: ROEHRICH ROLAND L
IPC: F25B29/00
Filed: 1993-11-26
Abstract: ABSTRACT OF THE DISCLOSURE        Methods and apparatus for controlling the tempera-ture of a conditioned space to a predetermined set point temperature, utilizing a supply of cryogen in liquid and vapor states. The two states are drawn from the supply in two separate flow paths.  The liquid cryogen is vaporized in a heat exchanger,  and the two flow paths are then combined.  The combined cryogen is used to drive a vapor motor connected to a fan, with the fan moving air between the conditioned space and the heat exchanger.   Heat is applied to the cryogen as required to hold the set point temperature or to defrost  the  heat  exchanger.    In a preferred embodiment,  the cryogen is added to a first vessel at the pressure provided by ground support appara-tus, and expanded into a second vessel as a function of system conditions, to provide the supply of cryogen in both the liquid and vapor states.
Patent CA-2110371-A1 (CA)
Title: Capacitive coupled power supplies
Inventor: VOLLIN JEFFREY L
IPC: H02M7/17
Filed: 1993-11-30
Abstract: IMPROVEMENT TO CAPACITIVE COUPLED POWER SUPPLIES                 ABSTRACT OF THE DISCLOSURE      A rectifying power supply having an AC current source (11, 211, 311) operating at a frequency of at least 100 KHz, a plurality of capacitors (12, 14, 19, 21, 25, 27, 31, 33, 217, 219, 223, 225, 229, 231, 317, 319, 323, 325, 329, 331) responsive to the AC current output of the AC current source for providing DC isolation and for providing capaci-tively coupled AC currents, and a plurality of AC current to DC voltage rectifying circuits (17, 23, 29, 35, 221, 227, 233, 331, 327, 333).  The outputs of the rectifying circuits are coupled in series or in parallel.
Patent CA-2113722-A1 (CA)
Title: Method for co-forming an absorbent structure having a transfer layer and a reservoir layer and the resulting product thereof
Inventor: CHAUVETTE GAETAN
IPC: A61F5/44
Filed: 1992-07-20
Abstract: A method for manufacturing a structurally integral, compound fluid-absorbent structure having superposed transfer and reservoir layers united in an intimate fluid-communicative relationship. The method comprises the steps of laying in a superposed relationship and in physical contact a slurry of cellulosic fibrous material forming the transfer layer and a slurry of peat moss material forming the reservoir layer. The resulting laminated composite slurry layer is dewatered and calendered to enhance the drying power of the reservoir layer. Subsequently, the laminated composite web is subjected to perf-embossing to relax the fibrous network of the transfer layer and enhance its ability to rapidly take-up fluid. To render the transfer layer responsive to the perf-embossing operation, a debonding agent is incorporated therein. The invention also extends to a fluid-absorbent component manufactured by the aforementioned method, which can be used as an absorbent core for disposable absorbent products such as sanitary napkins, diapers, urinary pads, adult briefs, wound dressings, and the like.
Patent CA-2115919-A1 (CA)
Title: Batch deposition of polymeric ion sensor membranes
Inventor: BROWN RICHARD B
IPC: G01N27/414
Filed: 1992-08-20
Abstract: Screen printing technology is employed in the batch fabrication of the contacts and polymeric membranes of solid-state ion-selective sensors. The process achieves high yield with very reproducible results. Moreover, membrane thickness can easily be predetermined, as it is directly related to the thickness of the screen or stencil. The process of the present invention is compatible with many integrated circuit manufacturing technologies, including CMOS  fabrication. Advantageous polymeric membrane paste compositions include a polyurethane/hydroxylated poly(vinyl chloride) compound and a silicone-based compound in appropriate solvent systems to provide screen-printable pastes of the appropriate viscosity and thixotropy.
Patent CA-2116149-A1 (CA)
Inventor: BARDSLEY JUDY H
IPC: C02F5/08
Filed: 1994-02-22
Abstract: ABSTRACT OF THE DISCLOSURE       A method for solubilizing colloidal silica in aqueous systems containing silica is provided wherein a silica-containing sample is diluted, one or more chelants are added and the pH is above 10Ø
Patent CA-2116364-A1 (CA)
Inventor: CALMETTES LIONEL
IPC: F16L33/02
Filed: 1994-02-24
Abstract: A B S T R A C T      A spring clamping collar constituted by a rolled-up metal strip (1) with the end portions (1a-1b) of said strip each being of a width that is substantially equal to half the width of the strip, said portions being disposed beside each other and being provided with tabs that extend radially outwardly from the collar, thereby forming abutments for engaging a pliers-like tool.  Each tab extends over substantially the entire width of the strip and possesses, on its side remote from its connection to the corresponding end portion of the strip, an extension (2a-3a) which extends over the other end portion of the strip and is directed away from the tab carried by said other end portion.
Patent CA-2117293-A1 (CA)
Title: Neuroblastoma-associated regulator gene
Inventor: ELLMEIER WILFRIED
IPC: C12Q1/6886
Filed: 1992-12-19
Abstract: Described is a gene situated in the region of the neuroblastoma consensus deletion 1p36.2-p36.1 and which codes for a helix-loop-helix protein with the designation HEIR-1. The gene is affected significantly by allelic tumour deletions in neuroblastomas and correlates inversely both with N-myc overexpression in tumours and with N-myc expression in normal development. The cDNA and antibodies coding for HEIR-1 are used for the diagnosis of pathological conditions associated with aberrations in the region of the neuroblastoma consensus deletion.
Patent CA-2117601-A1 (CA)
Inventor: GEERTS ROLF L
IPC: C08F4/69
Filed: 1994-08-29
Abstract: A catalyst system for the polymerization of alpha-olefins comprising a chromium-containing catalyst and an yttrium-containing catalyst wherein the yttrium-containing catalyst is represented by the formula (Cp2YXx)y~MzLn, wherein Cp is cyclopentadienyl or cyclopentadienyl substituted with an alkyl or alkyl silyl radical, X is a halogen, M is an alkali metal, L is a suitable electron donor ligand, x is 1 or 2, y is 1 or 2, z is 0 or 1, and n is a number corresponding to the value needed to form a stable complex, with the proviso that when y is 2, z and n are 0 is provided. Also disclosed is a polymerization process employing such a catalyst system, and novel olefin polymers. Polymers thus produced exhibit high bulk density and a broad molecular weight distribution.
Patent CA-2120454-A1 (CA)
Title: Remote control system for a locomotive
Inventor: HORST FOLKERT
IPC: B61C17/12
Filed: 1994-03-31
Abstract: A locomotive control system comprising a remote transmitter issuing binary coded commands and a slave controller mounted on the locomotive that decodes the transmission and operates various actuators to carry into effect the commands remotely issued by the operator.
Patent CA-2121037-A1 (CA)
Title: Wet disc brakes
Inventor: PARSONS FRANCIS E
IPC: F16D55/22
Filed: 1992-10-09
Abstract: A disc brake assembly having a single rotor disc (3) with at least one friction pad (10) acting on opposed braking surfaces (40). The assembly is immersed in a liquid filled sealed housing (1, 2). The pad (10) is configured to have a leading edge angled rearwardly from an inner leading corner region of the pad (10) and rearwardly angled open ended grooves on the friction surface.
Patent CA-2122122-A1 (CA)
Inventor: CHOUDHURY HRISHIKESH
IPC: B29C65/00
Filed: 1992-10-14
Abstract: A multi-tubing ribbon (8) wherein the side-by-side lengths of plastic tubing (18a-18d) are ultrasonically welded together at spaced intervals (30) along the length of the ribbon (8) whereby to provide a multi-tubing ribbon (8) having non-welded sections (20, 22) spaced along its length which renders it very adaptable for use in a variety of situations and a process and apparatus for fabricating same.
Patent CA-2123110-A1 (CA)
Inventor: LUCICH TODD C
IPC: F16H57/02
Filed: 1992-11-13
Abstract: A variable speed belt drive (20) of the type having a pair of shiftable discs (22, 24) received on respective input and output shafts (26, 34) with a drive belt (36) entrained thereabout further includes a cooperating housing backbone and support bracket (46, 58). The housing backbone supports one axial end of the output shaft, and supports the support bracket (58), which extends through the loop of the drive belt to support the opposite end of the output shaft. The straddle support arrangement permits use of a nonload bearing housing cover and permits the performance of maintenance procedures for the drive belt (36) and input shaft (26) without disengaging alignment and support of the output shaft (34).  One end of the input shaft (26) is supported by the housing and the opposite end is supported with a thrust bearing which is received in a pivot mounted shifting yoke.
Patent CA-2123420-A1 (CA)
Title: Protease vaccine against heartworm
Inventor: GRIEVE ROBERT B
IPC: A61K39/002
Filed: 1992-11-12
Abstract: The transition between the L3 and L4 larval stages of the nematode filarial parasites such as Dirofilaria immitis occurs after introduction into the animal host and is mediated by at least one metalloprotease and/or cysteine protease unique to the L3 or L4 larval stage. Methods to prevent and treat filarial infection are provided by vaccines comprised of the immunogenic determinants of the characteristic L3 or L4 proteases and by administration of inhibitors of these proteases.
Patent CA-2123621-A1 (CA)
Title: Structural part for a motor vehicle and method of construction
Inventor: BORYS TADEK
IPC: B62D25/22
Filed: 1994-05-16
Abstract: This invention provides a structural part, such as a running board, a tailgate, a door, a frame, a window or other structural part for a motor vehicle. The structural part consists of a composite of polymer and metal and may be made using a plurality of modular moulds, most of which are suitable for use with any motor vehicle. One example of a structural part made according to this invention is a running board. The running board is lightweight and has fewer parts than conventional running boards. Under the same loads, it deflects about ten times less than conventional runningboards. The parts of the running board include a waffle that provides support to a person exiting or entering the vehicle, at least two brackets to attach the waffle to the vehicle, a cover for the waffle which may include tread means or other means to provide a slip resistant surface, and an end cap for each of the two ends of the waffle.
Patent CA-2124106-A1 (CA)
Inventor: SAPP GORDON K
IPC: B65G13/075
Filed: 1994-05-20
Abstract: A  gravity  conveyor  system  is  disclosed including means for actively stopping the rotation of the conveyor rollers  following disengagement with a conveyed  article  after  it  passes  thereover  and  in advance of a next succeeding article.  This allows each article to accelerate an engaged roller from a rest position so that precise transport control is effected without the use of positive drive mechanisms.  Accurate control for throughput and accumulation results from cooperation between brake assemblies associated with each conveyor roller, a sensor assembly and a pneumatic control assembly, each combination of which acts in an operational  zone.   The  rotation  of  the rollers  is preferably stopped as a function of the sensed position of articles along the system.  The pneumatic control assembly further includes a logic control mechanism that operates  to  selectively  control  the  application  of braking action either momentarily to allow continued controlled throughput or for a prolonged period of time to allow controlled accumulation.  The gravity control system acts to practice a method for controlling the transport of articles without positive drive assistance in reliance on stopping the rotation of the rollers after an article has passed thereover and in advance of a next succeeding article.  The apparatus and method further provide a means for stopping articles at the discharge point of the conveyor system without the need for extraneous stop mechanisms.
Patent CA-2124497-A1 (CA)
Title: Polymer enhanced grease compositions
Inventor: SLACK DAVID A
IPC: C10M169/06
Filed: 1994-05-27
Abstract: ABSTRACT OF THE DISCLOSURE          A grease composition having improved water resistance, adhesion and low temperature pumpability properties which comprises:          (a)  from 50 to 98 wt%, based on grease, of a lubricating oil;          (b)  from 1 to 30 wt%, based on grease, of a thickener; and (c)  from 0.5 to 2.0 wt%, based on grease of polymer selected from the group consisting of (1) a block copolymer of the structure A-B where A is a polymer block comprising at least about 75 percent by weight of condensed styrene units, no more than 25 percent of the aromatic unsaturation in said block being reduced by hydrogenation and B is hydrogenated polymer block comprising, prior to hydrogenation, at least 75 percent by weight of condensed isoprene units, at least 95 percent of the olefinic unsaturation in said block being reduced by hydrogenation, and (2) a hydrogenated star-shaped polymer having a poly(divinylbenzene) nucleus and at least seven hydrogenated poly-isoprene arms linked to said nucleus;   wherein the grease has an apparent viscosity of less than about 3500 poise at 20 sec-1.
Patent CA-2125970-A1 (CA)
Title: Core biopsy needle units for use with automated biopsy guns
Inventor: BENNETT LAVON L
IPC: A61B10/02
Filed: 1992-12-15
Abstract: Core biopsy needle units used with automated biopsy guns are disclosed. The needle units comprise an elongate solid needle (10) having a notch (14) formed adjacent to the end of the needle (10).  A hub (18) is securely attached to the other end of the needle (10). An elongate cannula (14) is received over the notched end of the needle (10) such that the needle (10) slides longitudinally through the cannula (14). A second hub (20) is securily attached to the first end of the cannula (14), and engagement means are formed in the hub (18) on the needle (10). The hub (18) on the needle and the second hub (20) on the cannula (14) are adapted to be received in respective receiver cavities of an automated biopsy gun, with the engagement means in the hub (18) on the needle (10) making firm, releasable, interlocking engagement with corresponding engagement means associated with the receiver cavity in which the hub (18) on the needle (10) is received. In addition, a mechanism is provided for releasably interlocking the needle (10) and cannula (14) at a proper position and orientation for insertion into the receiver cavities of an automated biopsy gun. The mechanism is released once the needle unit is properly received in the biopsy gun to allow telescopic movement of the needle (10) within the cannula (14).
Patent CA-2128568-A1 (CA)
Title: Improved sunglasses and safety eyewear and method of making the same
Inventor: DAVIS JOHN K
IPC: G02C7/02
Filed: 1994-07-21
Abstract: A sunglass or eye protector molded from suitable optical material with inner and outer surfaces, both of which are noncircular in the horizontal direction and curved in the vertical meridian to provide substantially uniform thickness throughout.
Patent CA-2129813-A1 (CA)
Title: 5-aminoflavone derivatives
Inventor: AKAMA TSUTOMU
IPC: C07D311/30
Filed: 1994-08-09
Abstract: The present invention is directed to 5-aminoflavone derivatives represented by the formula (I):   (see formula I) wherein R1 and R2 are the same or different and represent hydrogen or substituted or unsubstituted lower alkyl, X represents substituted or unsubstituted lower alkyl, lower alkenyl, lower alkynyl, halogen, hydroxy, substituted or unsubstituted lower alkoxy, NR3R4 (wherein R3 and R4 are the same or different and represent hydrogen, or substituted or unsubstituted lower alkyl, or R3 and R4 are taken together to form a heterocyclic group containing the nitrogen atom in the ring), lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, carboxy, lower alkoxycarbonyl, lower alkanoyl, azido, cyano, substituted or unsubstituted carbamoyl or lower alkylthiothiocarbonyl, Y1 and Y2 are the same or different and represent hydrogen, halogen or lower alkyl: or pharmaceutically acceptable salts thereof. The derivatives of the present invention are suitable for use as antibacterials and in anti-estrogenic and antitumour compositions.
Patent CA-2130759-A1 (CA)
Inventor: MAURER ROBERT
IPC: G02B5/30
Filed: 1994-08-24
Abstract: The invention relates to optical elements having image-forming, color- and polarization-selective reflection and containing cholesteric liquid crystals, and to the preparation and use of these elements.      In the wavelength- and polarization-selective elements which form an optical image, at least one cholesteric liquid crystal is enclosed in the cavity of constant thickness between two light-transmitting substrates having curved surfaces in such a way that the helix axis of the liquid crystal is aligned perpendicular to the curved surface of the light-transmitting substrates.      The elements are suitable for use as beam splitters or recombiners in projection displays.
Patent CA-2131519-A1 (CA)
Title: Contoured fitment for a container forming a three dimensional seal
Inventor: CHASE JAMES E
IPC: B65D33/16
Filed: 1994-09-06
Abstract: ABSTRACT OF THE DISCLOSURE  A contoured fitment is provided for securing to a container holding a solution.  The contoured fitment is secured to the container by a seal.   The seal formed across the fitment secures the fitment to the container and reduces stress at a juncture between the seal across the fitment and a point of the seal between the fitment and the container where the fitment meets the seal.  A method  is provided for securing the fitment to the container  by  providing  a  contoured  fitment  and  a resultant contoured seal across the fitment.
Patent CA-2131774-A1 (CA)
Inventor: BENAZZI ERIC
IPC: B01J27/182
Filed: 1994-09-09
Abstract: BREVET D'INVENTION INSTITUT FRANCAIS DU PETROLE CATALYSEUR D'ALKYLATION D'ISOPARAFFINE C4-C5 PAR AU MOINS UNE OLEFINE C3-C6 Invention de Eric BENAZI, Jean-François JOLY, Frédéric CHAIGNE, Jeau-Yves BERNHARD et Christian MARCILLY La présente invention concerne un catalyseur comprenant de la silice et une phase acide comportant de l'acide sulfurique et le composé HB(HSO4)4, la silice ayant été imprégnée par ladite phase acide, ledit catalyseur étant tel qu'il est constituéessentiellement de particules de diamètre moyen compris entre 0,1 et 150 .mu.m, en ce que sa teneur pondérale en phase acide est supérieure à 40 %, en ce que la silice, avant son imprégnation par ladite phase acide, possède un volume poreux total compris entre 0,5 et 6 cm3/g, et en ce qua ladite phase acide comprend entre 0,4 % et 68,8 % poids du composé HB(HSO4)4 et entre 31,2 % et 99,6 % poids du composé H2SO4, ladite phase acide étant caractérisée par le fait qu'elle ne contient pas d'anhydride sulfurique ni d'acide borique. L'invention concerne aussi la préparation et l'utilisation dudit catalyseur en alkylation catalytique d'isobutane et/ou d'isopentane en présence d'au moins une oléfine comportant de 3 à 6 atomes de carbone par molécule.
Patent CA-2131777-A1 (CA)
Title: Sealed electrical device with unitary fill port and terminal construction
Inventor: SHKURATOFF ALLEN
IPC: H01M50/618
Filed: 1994-09-09
Abstract: Unitary fill port and terminal constructions and methods  for  filling  and  sealing  are  disclosed  for electrical devices comprising liquids.   The invention is particularly  suited  for  use  in  prismatic  batteries comprising non-aqueous organic electrolytes.