baber/WOPTO huggingface dataset:
Patent CA-2135877-A1 (CA)
Inventor: FINE DAVID H
IPC: G01N1/22
Filed: 1993-05-19
Abstract: Disclosed is a method and apparatus for sampling and determining the presence of certain substances, such as residues of contaminants in containers. The method includes steps of: injecting compressed air into said containers in order to displace at least a portion of the contents thereof; evacuating a sample of the container contents so displaced by applying suction thereto; and analyzing the sample evacuated to determine the presence or absence of the certain residues therein. The compressed air is injected through a nozzle into an opening in the containers to displace a portion of the container contents and form a sample cloud outside of the container. The sample cloud is then at least partially evacuated by suction and the sample is analyzed for the presence of contaminants such as nitrogen containing compounds or hydrocarbons. In one embodiment about 90 % of the sample evacuated is diverted from the analyzer and recirculated into the air injector. In another embodiment a fan is provided to blow remnants of the sample cloud downstream of the test station. A hood may be provided in a shroud assembly at the test station to provide proper aerodynamics for the region for removal of those remnants.
Patent CA-2136011-A1 (CA)
Title: Apparatus and method for reversed permeation membrane extraction of compounds from sample solutions
Inventor: MELCHER RICHARD G
IPC: G01N30/06
Filed: 1993-05-28
Abstract: A reversed permeation membrane assembly and method for analyzing one or more compounds of interest from a sample solution. The membrane assembly includes a semi-permeable membrane (15) of predetermined thickness and length, and having inner and outer surfaces.  The membrane (15) is attached adjacent its outer surface to a substantially rigid membrane support (17), and a non-porous barrier (18) contacts the outer surface of the membrane to prevent permeation of compounds beyond the outer surface in use. In a preferred embodiment, the semi-permeable membrane assumes a substantially tubular conformation through which sample solution may be passed. The membrane support (17) also preferably features a tubular conformation within which the semi-permeable membrane (15) is mounted. Because of its unique structure and improved efficiency, the assembly of the present invention may be incorporated for in-line use with liquid and gas chromatography devices and GC/MS units.  In some applications, the extractant can even be flowed through the membrane cell to collect analytes and directly to an LC column for analysis in a substantially non-stop manner.
Patent CA-2136500-A1 (CA)
Title: Protective headgear and detachable face protector
Inventor: COPELAND STEVE
IPC: A42B3/20
Filed: 1991-11-20
Abstract: ABSTRACT        A faceguard frame for securement to a protective sport head gear is disclosed.  A visor of clear plastic material is hingedly connected to the frame by pivot connections so that the visor may be hinged upwardly of the frame.  A resilient lock is provided in opposed side sections of the frame to immovably secure the visor in its position of use in front of a wearer's face.
Patent CA-2139392-A1 (CA)
Inventor: BENTON GENE A
IPC: C12N5/071
Filed: 1994-12-30
Abstract: A multiple-loop temperature controller using RTD sensors is continuously calibrated by performing a zero or full scale calibration during each operating cycle. An arrangement of four multiplexers is used to successively connect each RTD sensor to a pair of current sources and an A/D converter, thereby allowing the current sources and A/D converter to be shared among all of the RTD sensors.      Measurement errors are minimized by using the same multiplexers for temperature measurement and calibration, with calibration being performed by connecting the multiplexers to a ground reference or precision resistor.  Interrupt-driven temperature loop processing is used to reduce A/D conversion delays, thereby allowing high-precision A/D converters with long settling times to be used. The multiple-loop temperature controller is advantageously utilized in an automated blood culturing system requiring precise control of sample temperatures.
Patent CA-2140284-A1 (CA)
Title: Built dye transfer inhibiting compositions
Inventor: FREDJ ABDENNACEUR
IPC: C11D3/00
Filed: 1993-06-30
Abstract: The present invention relates to dye transfer inhibiting compositions comprising a) a polymer selected from polyamine N-oxide containing polymers which contain units having structural formula (I) wherein P is a polymerisable unit, whereto the N-O group can be attached to or wherein the N-O group forms part of the polymerisable unit or a combination of both. A is (1), (2), (3), -O-, -S-, (4); x is 0 or 1; R is aliphatic, ethoxylated aliphatics, aromatic, heterocyclic or alicyclic groups or any combination thereof whereto the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-O group forms part of these groups. b) a builder.
Patent CA-2141067-A1 (CA)
Inventor: ALLGEIER CHRISTOPHER L SR
IPC: B41J2/175
Filed: 1995-01-25
Abstract: A new method of refilling ink, into an empty ink-jet printer cartridge is intended to minimize leakage and waste during the refilling process. A fill hole of the printer cartridge is opened and a predetermined quantity of ink is introduced therethrough with, for example, a first syringe. Air is then introduced into inflatable bladders provided in the printer cartridge with a second tool, preferably a second syringe. The amount of air is carefully measured to correspond with the predetermined ink quantity so that no overflow occurs. The fill hole remains open to atmosphere during the air introduction step. While the syringe is still in place, the fill opening is then closed with a new plug and thereafter the second syringe removed from the equalize opening. This exerts a slight negative pressure which acts to provide a suction force and urge any ink in open ports inwardly into the housing, thus minimizing overall leakage and waste during the refill process.
Patent CA-2142909-A1 (CA)
Title: Electronic information aid
Inventor: PAPADOPOULOS MARIOS G
IPC: G09B15/00
Filed: 1994-03-11
Abstract: An electronic information aid displays and calcu-lates the relationship between a series of individual in-tegers which may comprise alphabetical and/or numerical indicia or a series of visual and/or aural indicia or a com-bination of any one or more of the integers. The aid has a number of reference rings (23a-23g) each of which is independently rotatable but maintained in a predetermined spatial relationship with each other. Each reference ring (23) includes a number of segments each of which dis-plays indicia which corresponds to an integer. When the rings (23a-23g) are rotated so the segments are aligned into an active strip in accordance with a coding system, the segments will display the interrelationship between the integers. Each segment within the active strip can be ac-tivated to initiate an aural or a visual response.
Patent CA-2142982-A1 (CA)
Title: Articles for sustained release of medications
Inventor: LO JULIAN BELKNAP
IPC: A61K9/22
Filed: 1993-07-12
Abstract: An article for controlled release of medication from a dosage form wherein the article comprises a core containing said me-dication and a coating on the core having a non constant thickness.
Patent CA-2145584-A1 (CA)
Title: Styrene-isoprene-styrene copolymer-based transdermal matrix system for the administration of an oestrogen and/or a progestogen
Inventor: MIKLER CLAUDE
IPC: A61F13/02
Filed: 1995-03-27
Abstract: This invention is concerned with a new transdermal matrix system for the percutaneous administration of a hormone, said matrix system, which has a support and a self-adhesive matrix, comprising a matrix containing: (a)   20 to 42 parts by weight of a poly(styrene-isoprene-styrene) triblock copolymer, (b)      35 to 55 parts by weight of a tackifying resin. (c)      5 to 25 parts by weight of a plasticizing agent selected from the group consisting of oleic alcohol, peglicol 5-oleate, propyleneglycol laurate or a polypropoxyl ether of cetyl alcohol, (d)      5 to 15 parts by weight of at least one compound selected from the group consisting of:  - crotamiton, and - N-substituted 2-pyrrolidones of formula I,   (I) wherein R represents a (C1-C15)-alkyl, cyclohexyl or 2-hydroxyethyl group, (e)      0,01 to 1 part by weight of a stabilizing agent and, (f)      0,1 to 5 parts by weight of a hormone selected from the group consisting of oestrogen components, progestogen components and mixtures thereof. It also relates to a method for prepararing said system.
Patent CA-2146705-A1 (CA)
Inventor: HOOGESTEGER JAMES L
IPC: B04C5/28
Filed: 1995-04-10
Abstract: A gas/air bubble separator is disclosed, particularly for use with supplying air/gas bubble free coating liquid to a paper coater. The separator includes three cast elements containing three formed chambers, a distribution chamber at the top of the device which supplies incoming liquid to a plurality of separators which operate on the vortex principle, a liquid collection chamber for collecting the essentially or substantially air/gas bubble free liquid at the bottom of the device, and an air/gas bubble collection chamber above the vortex separators for collecting the gas/air bubble containing liquid. These chambers are of cast construction and made of stainless steel so that no weld need be used. The device has essentially inline flow for the bulk of the liquid from inlet to outlet and clean streamline design with no dead spaces to prevent accumulations, build ups and problems associated with the same. The vortex separators are made in parts and they can be replaced or individually optimized to achieve air/gas bubble free operation at high coater speeds of 3,000 to 6,000 feet per minute.
Patent CA-2146983-A1 (CA)
Title: Water jet propulsion unit for use in a jet boat
Inventor: DAVIES RICHARD GWYN
IPC: B63H5/10
Filed: 1993-10-13
Abstract: A water jet propulsion unit intended for use in jet boats, the unit comprising an intake section (10), a pump section (12) and a nozzle section (16). In the pump section (12) there are two counter-rotating impellers (14, 15) on concentric counter-rotating shafts (26, 27) calibrated so that any radial flow created in the upstream impeller (14) is converted into axial flow by the down-stream impeller (15). In one embodiment the nozzle section (16) has a throttled outlet (17) to allow for a high mass/low pressure operation while maintaining pump priming. There are no support structures or stators downstream of the intake section ( 10) in the preferred embodiment.
Patent CA-2148134-A1 (CA)
Title: Belt accumulator
Inventor: STEINMAIR KARL
IPC: B65H20/30
Filed: 1994-08-12
Abstract: The described strip accumulator comprises an outer circular set of carrying rollers (3), which extend radially with respect to a vertical axis of the set and serve to carry an upright outer strip coil (4a), rich receives strip on the outside from a strip feeder (21), a concentric inner circular set of freely rotatably mounted, radially extending inner carrying rollers (5) for carrying an inner strip coil (4b), which is connected to the outer strip coil (4a) by a reversing loop (19), and a roller cage (6), which constitutes a core for the inner strip coil (4b) and comprises axially parallel rollers (10), one of which serves as a payout roller (9) for guiding the strip to an inclined delivery roller (7) disposed within the roller page (6). In order to render the design of the strip accumulator substantially independent of the dimensions and material properties of the strip (8), it is proposed that a looping roller (11) for forming the reversing loop (19) is provided between the outer and inner circular sets of carrying rollers (3 and 5) and is adapted to be driven to revolve about the axis of said circular sets at a velocity that is equal to one-half of the difference between the velocities of the incoming and outgoing strips and that the accumulator comprises on the inside of the outer circular set of carrying rollers (5) a circular set of inclined rollers (26), which either increase radially inwardly in diameter and/or relative to a radial orientation with respect to the axis of the circular set are inclined in a sense which is opposite to the sense of rotation of the outer strip coil (4a).
Patent CA-2148782-A1 (CA)
Title: Heat-curable reaction resin mixtures and the use thereof
Inventor: SCHRADER LUTZ
IPC: C08G18/00
Filed: 1995-05-05
Abstract: The present invention relates to heat-curable reaction resin mixtures comprising at least one organic polyisocyanate, at least one organic compounds having epoxy rings, and mixtures of certain tertiary amines as reaction accelerators. These reaction resin mixtures are suitable as casting resins for mold making and for the production of various kinds of composites. The curing of the resins takes place in economically reasonable time periods, without excessive evolution of heat, while avoiding shrinkage and the formation of cracks and bubbles.
Patent CA-2149046-A1 (CA)
Title: Purified ceramide-activated protein kinase, assay for identifying agents which act on same, and methods of using said agents
Inventor: KOLESNICK RICHARD N
IPC: C12N9/99
Filed: 1993-11-12
Abstract: A purified membrane-bound ceramide-activated protein kinase having an apparent molecular weight of about 97 kD as determined by SDS polyacrylamide gel electrophoresis is provided. This protein kinase specifically phosphorylates the threonine residue in a Pro-Leu-Thr-Pro containing polypeptide. A method of determining whether an agent is capable of specifically inhibiting the phosphorylation activity of the ceramide-activated protein kinase is also provided. A method of determining whether an agent is capable of specifically stimulating the phosphorylation activity of the ceramide-activated protein kinase is further provided. A method of treating a subject having an inflammatory disorder is further provided. A method of treating a human subject infected with HIV so as to reduce the proliferation of HIV in the human subject is further provided. Finally, a method of treating a subject having a disorder associated with poor stem cell growth is provided. The figure shows the effect of phospholipases on the ceramide-activate protein kinase catalyzed phosphorylation in the presence of TNF-.alpha..
Patent CA-2153695-A1 (CA)
Title: Optically active .beta.-aminoalkoxyborane complex
Inventor: KASHIHARA HIROSHI
IPC: C07C/
Filed: 1994-01-17
Abstract: An optically active .beta.-aminoalkoxyborane complex of formula (I), wherein R1 is C1-C8 alkyl, C3-C7 cy-cloalkyl, C7-C11 aralkyl or C6-C10 aryl, R2 is hydro-gen, C1-C8 alkyl, C3-C7 cy-cloalkyl or C7-C11 aralkyl, or R1 and R2 together form (CH2)n wherein n is 3 or 4, and Ar is naphthyl, anthryl or phenanthryl, which may be substituted by from 1 to 3 substituents selected from the group consisting of halogen, nitro, C1-C6 alkyl, C3-C7 cycloalkyl, C2-C6 alkenyl, C2-C6 alkynyl, C7-C11 aralkyl, C6-C10 aryl, C1-C6 alkoxy and styrene polymer substituents.
Patent CA-2154859-A1 (CA)
Title: Silica reinforced rubber preparation and tire with tread thereof
Inventor: SANDSTROM PAUL HARRY
IPC: C08K5/548
Filed: 1995-07-24
Abstract: A rubber composition comprised of elastomer, silica, a silica coupler, 2-mercaptobenzothiazole and, optionally, carbon black, in which the silica, silica coupler and at least a portion of the 2-mercaptobenzothiazole are added in a non-productive mix stage.     Pneumatic tires having treads comprised of such rubber composition are provided.
Patent CA-2156805-A1 (CA)
Title: Breast-Milk Absorbent Pad
Inventor: MURAKAMI MASAKI
IPC: A41C3/04
Filed: 1995-08-23
Abstract: A breast-milk absorbent pad comprising a liquid-permeable inner sheet, a liquid-impermeable outer sheet and a liquid-absorbent core disposed between these two sheets wherein the core has a gradient of fiber density lower in a central region than in a peripheral region of the core.
Patent CA-2157074-A1 (CA)
Title: Injection molding parts with pinholes
Inventor: CAMPBELL MICHAEL T
IPC: B29C45/37
Filed: 1995-08-28
Abstract: A mold for molding thermoplastic parts having a plurality of pinholes wherein at least one of the mold cavities has a number of projections in the form of three-dimensional tapering shapes, for example, cones, which extend to a point near to but spaced from the confronting surface of the other mold half cavity. The taper of the angle of the projection and spacing between the apices of the projection and the surface of the other mold half are selected so that molten thermoplastic freezes before it covers the apices of the projections during the molding process to thereby form pinholes in the resulting plastic part. A method for molding plastic parts with pinholes with the use of the mold cavity with multiple projections is also disclosed.
Patent CA-2158526-A1 (CA)
Title: Step floor for a small snowmobile
Inventor: NAGATA TADAAKI
IPC: B62M27/00
Filed: 1995-09-18
Abstract: A pair of upright portions are provided on the opposite side portions of a floor on which a driver of a small snowmobile stands. A pad extends inwardly from an upper portion of each of the upright portions to securely hold the feet of the driver while maintaining adequate floor surface area for the feet. Further, a radiator for cooling an engine is disposed along a lower face of the floor so that it melts snow lying on the floor.
Patent CA-2158733-A1 (CA)
Title: Gas driven gene delivery instrument
Inventor: MCCABE DENNIS E
IPC: C12M3/00
Filed: 1995-01-20
Abstract: A gas driven apparatus (10) for accelerating particles (16) coated with a genetic material into a target, comprises a reservoir (12) for releasably retaining a gas at a sufficiently high-pressure to detach the particles from the surface of a sample cartridge (14) and to carry the particles through the apparatus (10) toward the target. When leaving the apparatus (10), the particles (16) entrained in the gas stream pass through a substantially conical exit nozzle (24) which causes the pattern of distribution of the particles to greatly expand. Methods for using the apparatus and for preparing the sample cartridges (14) are also described.
Patent CA-2159750-A1 (CA)
Inventor: JARLOT REGIS MARIE DOMINIQUE
IPC: C09J133/04
Filed: 1995-10-03
Abstract: Remoistenable adhesive compositions comprising an aqueous emulsion of a polymer containing at least about 60% by weight of vinyl acetate, the polymer having been polymerized in the presence of at least about 20% by weight of the monomer(s) of a polyvinyl alcohol, the alcohol characterized in that a 4% solution thereof has a viscosity of 1 to 70 cps at 20°C, and that it is hydrolyzed to a level of 70-100%.
Patent CA-2159828-A1 (CA)
Title: Process to prepare amino-carboxylic acid salts
Inventor: KADONO YUKIO
IPC: C07C229/08
Filed: 1994-04-06
Abstract: An improved process is disclosed to prepare an amino carboxylic acid salt According to die process, an aqueous solution of an amino alcohol is contacted with an alkali metal hydroxide in the presence of an effective amount of a copper catalyst that has from about 10 parts per million to about 50,000 parts per million of an element selected from the group consisting of chromium, titanium, niobium, tantalum, zirconium, vanadium, molybdenum, manganese, tungsten, cobalt, nickel, bismuth, tin, antimony, lead, germanium, and mixtures thereof.
Patent CA-2161037-A1 (CA)
Inventor: NOE OSKAR
IPC: B21B1/22
Filed: 1995-10-20
Abstract: Method and apparatus for producing large-area metal, especially steel, plates.  The metal strip unwound from a coil is continuously treated by a heat treatment followed by stretch-bend leveling and then stretcher-leveling, the latter being discontinuously carried out by clamping the strip at two locations and urging those locations apart.  Only subsequently is the strip cut to form the plates.
Patent CA-2164086-A1 (CA)
Inventor: EPPLE ULRICH
IPC: C09D157/00
Filed: 1995-11-29
Abstract: Processes for the preparation of a functional polymer of low molar mass, which includes initially charging a first quantity M1 of a mixture including at least one component selected from olefinically unsaturated monomers B and compounds A which are not themselves copolymerizable but which are able to react with at least one of the monomers B to form a copolymerizable addition compound,  metering in prior to or during polymerization a second quantity M2 of a mixture whose composition can be identical to or different from that of the first mixture M1 and which includes   at  least  one   component   selected   from olefinically unsaturated monomers B and compounds A, initiating polymerization by use of a polymerization initiator  and  optionally  a  chain  transfer  agent, conducting polymerization in the presence of an oligomer or polymer C, wherein the oligomer or polymer C is either formed in situ from one or more of A and B or is dissolved in at least one of the quantities M1 and M2, wherein at least one of M1 and M2 includes a monomer B. The polymers are useful in coating compositions.
Patent CA-2167954-A1 (CA)
Title: Method for accounting for user terminal connection to a satellite communications system
Inventor: MONTE PAUL A
IPC: H04B7/26
Filed: 1996-01-24
Abstract: This invention provides a method and system for accurately accounting for an amount of satellite communications system resources that are allotted to and utilized by a user terminal on a per call or connection basis. The method accumulates data at periodic intervals during a connection, the data indicating what portion of the overall system resources are utilized on both a forward link (gateway to satellite(s) to user terminal) and on a reverse link (user terminal to satellite(s) to gateway). The usage data can include power levels, data rates, user terminal location, and user terminal type. A Gateway (18) that is assigned to handling the call for the user terminal (13) accumulates the  data  and  subsequently transfers  the data  over  a terrestrial  data  network  (39)  to a Ground Operations Control Center (38). The center uses the data to determine an amount to be billed to a service provider associated with a service area that includes the gateway. The center may also uses this data to derive statistical information describing  the  communications  traffic  handled  by  the gateway, and to derive predicted resource allocation and resource scheduling information for the gateway.
Patent CA-2168412-A1 (CA)
Title: Lysin derivatives; process for preparing the same; use thereof and compositions containing the same
Inventor: BORDIER THIERRY
IPC: A61Q1/02
Filed: 1996-01-30
Abstract: N(epsilon)-(polyfluoroalkoxycarbonyl or polyfluoroalkyl-sulphonyl)-lysine derivs. of formula (I) HOOC-CH(NH2)-(CH2)4-NH-X-(CH2)n-R and their salts and D- or L-optical isomers (and mixts.) are new. In (I), n is 0-4; X is COO or SO2; and R is 4-20C perfluoroalkyl.
Patent CA-2168808-A1 (CA)
Inventor: HUMPHREYS REGINALD D
IPC: B03B9/02
Filed: 1996-02-05
Abstract: A hot water extraction process for extracting bitumen from tar sands is taught using a conditioning agent containing an alkali metal bicarbonate and an alkali metal carbonate. A source of calcium and/or magnesium ions can also be added. The conditioning agent replaces the caustic soda agent previously used intar sand extraction. The use of the alkali metal bicarbonate and carbonate substantially eliminates the production of sludge in tar sand extraction and maintains or improves bitumen recovery. The process allows for hot conditioning agent solution to be recycled to the process by use of a recycle storage tank.
Patent CA-2168980-A1 (CA)
Title: Loudspeaker
Inventor: GAIDAROV ALEXANDR SERGEEVICH
IPC: H04R5/02
Filed: 1994-08-05
Abstract: The loudspeaker particularly comprises two-aperture radiator (1) containing paired in-phase counter-radiating apertures (4) and reproducing middle frequencies. Apertures (4) face each other, and their geometrical axis F is positioned vertically, while the distance between apertures (4) equals to at least the radius of aperture (4) but does not exceed the wavelength of the lowest frequency reproduced by paired apertures (4).