baber/WOPTO huggingface dataset:
Patent CA-2140444-A1 (CA)
Title: Sensor devices
Inventor: VADGAMA PANKAJ M
IPC: G01N27/40
Filed: 1993-07-23
Abstract: Sensor devices for detecting components in fluid samples, especially by electrolytic analytical methods, comprising a de-tecting means (usually an anode, especially one of platinum) surrounded by a selectively permeable membrane barrier composed of a mixture of polyvinyl chloride and polyaryl sulphone polymers. Preferred proportions of the polymers are 1 to 9 parts of poly-aryl sulphone for each part of polyvinyl chloride, and the mixture may be formed into membranes by solution casting. Preferably this barrier is used with an inner membrane, especially of porous polycarbonate. In use, these polymer mixtures are especially useful in their selective permeability to glucose. Also provided are methods for their use in analysis, and the polyvinyl chloride/ polyaryl sulphone polymer compositions themselves and membranes made from them.
Patent CA-2140605-A1 (CA)
Title: Current limiter unit ampere rating module
Inventor: ARNOLD DAVID
IPC: H02H9/02
Filed: 1995-01-19
Abstract: A self-contained current limiter unit allows lower short-circuit rated circuit breakers to be utilized within industrial applications. The current limiter unit includes a rating module in the form of a positive temperature coefficient material connected in series with an ohmic resistor. The rating module is connected in parallel with the current limiter components to limit short current to a fixed value. A circuit breaker connected in series with the current limiter unit responds to interrupt the circuit current. Additional rating modules are connected in a ladder logic array to meet the distribution circuit short-circuit rating requirements.
Patent CA-2141560-A1 (CA)
Title: Method and circuit arrangement for electric compensation of signal distortion caused by laser chirp and fiber dispersion
Inventor: GOTTWALD ERICH
IPC: H04B10/2513
Filed: 1993-08-05
Abstract: For the purpose of electric compensation of signal distortion in an optical telecommunication system caused by laser chirp and fiber dispersion, a correction signal is derived from the electric transmission and/or reception signal by squaring followed by differentiation and added to the electric transmission signal and/or reception signal, respectively, after necessary attenuation.
Patent CA-2143199-A1 (CA)
Title: Bias Control Apparatus for a Data Slicer in an Auxiliary Video Information Decoder
Inventor: TULTS JURI
IPC: H04N7/087
Filed: 1993-07-29
Abstract: An auxiliary video information decoder for extracting an auxiliary video information signal from a video signal includes a data slicer (230) and apparatus (220) for adjusting the slicing level of the data dicer (230). The slicing level is adjusted rapidly until a reference component of the auxiliary information signal is detected during a display interval of the video signal in which auxiliary video information is expected to occur. A count is incremented after display intervals in which the reference component is detected and is decremented after display intervals in which the reference component is not detected. Slicing level adjustment ceases while the count is at least a predetermined number. The apparatus rapidly adapts the slicing level to long-term video signal amplitude changes of significant magnitude (e.g. following a channel change) and maintains a constant slicing level when transient variations occur in the video signal amplitude.
Patent CA-2144088-A1 (CA)
Title: Hermetically sealed circuit modules having conductive cap anchors
Inventor: PAI DEEPAK K
IPC: H01L23/057
Filed: 1993-09-08
Abstract: A hermetic seal (50) is sealed to the top layer of the multilayer circuit board, and the circuit paths and/or vias are selective-ly connected to external pads (68) by vias (64, 66) extending through the multilayer circuit board, one via (66) terminating at a pad (70) internal to the sealed region and another via terminating at the external pad. In one form, the vias providing the external connection extend into a substrate (16) supporting the board, and circuit paths (72) in the substrate electrically connect the vias together. In second form, the vias providing the external connection are electrically connected together by selected circuit paths (80) in the circuit board. A conductive anchor (60) extends through the circuit board to the substrate to provide an anchor for the seal. Where the vias providing external connection are connected by selected circuit paths in the circuit board, the conductive an-chor comprises posts (82) having openings through which the selected circuit paths pass.
Patent CA-2144177-A1 (CA)
Title: Method and device for transverse distribution of a flowing medium
Inventor: FREDRIKSSON BOERJE
IPC: F15D1/08
Filed: 1993-10-06
Abstract: A method and a device for achieving uniform transverse distribution and spreading of a flowing medium, such as liquids, gases, foam or mixtures of different types of material. The device comprises a distribution housing (1) with a wide outlet opening (2) and line (3) for the medium feed. In a distribution chamber (5) the medium flow is deflected while being spread in lateral direction to a transversely curved passage (8) where the medium flow again is deflected to an outlet chamber (6). In this outlet chamber (6), which extends to the outlet opening (2), an outgoing substantially uniformly distributed and parallel flow is obtained.
Patent CA-2146118-A1 (CA)
Title: Hearing aid microphone with modified high-frequency
Inventor: HOLESHA KENNETH G
IPC: H04R25/00
Filed: 1993-09-14
Abstract: A microphone for a hearing aid having a modified high-frequency response is disclosed. The hearing aid comprises a hollow housing having an upper wall, a lower wall and a depending wall disposed betwen the upper wall and the lower wall. The upper, lower and depending walls de-fine a main chamber. The microphone further comprises an inlet tube ex-tending outwardly from the depending wall for receiving sound and a di-aphragm in continuous peripheral contact with the depending wall for substantially entirely dividing themain chamber into an input chamber in communicating relationship with the inlet tube and an output chamber. The input chamber presents an effective inertance to sound entering via the inlet tube. A structure is disposed within the input chamber between the diaphragm and the upper wall forming an elongated sound path. The elongated sound path increases the effective inertance of the input cham-ber to thereby lower the frequency of the peak response of the micro-phone to a frequency lower than the frequency of the peak response of a conventional receiver coupled thereto, to eliminate high frequency oscil-lations.
Patent CA-2149253-A1 (CA)
Title: Process for the recovery of oxygen from a cryogenic air separation system
Inventor: HOWARD HENRY EDWARD
IPC: F25J3/04
Filed: 1995-05-12
Abstract: A process for recovery of oxygen from a cryogenic air separation system in which measured data at the input or output of a latent heat exchanger and measured data within a column is compared with preselected data so that any deviation therebetween can be used to produce a signal that will vary the input parameters of the system until there is no deviation between the measured data and preset data thereby insuring that the system will operate under preselected optimum conditioning.
Patent CA-2150880-A1 (CA)
Inventor: NOZIK ZINA
IPC: C08K5/18
Filed: 1995-06-02
Abstract: Resilient elastomeric mounts and in particular, natural rubber engine mounts, which maintain good mechanical and dynamic properties at temperatures in excess of 250°F, are provided. The natural rubber engine mounts of the present invention are thus ideal for use in underhood applications which require durability at high temperatures, i.e. from about 250°F to about 280°F. The mounts generally comprise rubber produced by an efficient vulcanization (EV) system, which employs a curing system having a sulfur accelerator and sulfur donor. In a preferred composition, the accelerator is a sulfant amide and thiazole present at a level of about 1.2 phr to about 1.8 phr, and the sulfur donor is tetramethyl thuiram disulfide present at a level of about 0.1 phr to about 0.4 phr.
Patent CA-2151507-A1 (CA)
Title: Pharmaceutical composition containing bicyclic type compounds
Inventor: CHAN WAI NGOR
IPC: A61P25/00
Filed: 1993-12-08
Abstract: A compound of formula (I) or pharmaceutically acceptable salt thereof wherein: either Y is N and R2 is hydrogen, or Y is C-R1 where: either one of R1 and R2 is hydrogen and the other is selected from the class of hydrogen, C3-8 cycloalkyl, C1-6 alkyl optionally interrupted by oxygen or substituted by hydroxy, C1-6 alkoxy or substituted aminocarbonyl, C1-6 alkylcarbonyl, C1-6 alkoxycarbonyl, C1-6 alkylcarbonyloxy, C1-6 alkoxy, nitro, cyano, halo, trifluoromethyl, CF3S, or a group CF3-A-, where A is -CF2-, -CO-, -CH2-, CH(OH), SO2, SO, CH2-O, or CONH, or a group CF2H-A'- where A' is oxygen, sulphur, SO, SO2, CF2 or CFH; trifluoromethoxy, C1-6 alkylsulphinyl, perfluoro C2-6 alkylsulphonyl, C1-6 alkylsulphonyl, C1-6 alkoxysulphinyl, C1-6 alkoxysulphonyl, aryl, heteroaryl, arylcarbonyl, heteroarylcarbonyl, phosphono, arylcarbonyloxy, heteroarylcarbonyloxy, arylsulphinyl, heteroarylsulphinyl, arylsulphonyl, heteroarylsulphonyl in which any aromatic moiety is optionally substituted, C1-6 alkylcarbonylamino, C1-6 alkoxycarbonylamino, C1-6 alkyl-thiocarbonyl, C1-6 alkoxythiocarbonyl, C1-6 alkyl-thiocarbonyloxy, 1-mercapto C2-7 alkyl, formyl, or aminosulphinyl, aminosulphonyl or aminocarbonyl, any amino moiety being optionally substituted by one or two C1-6 alkyl groups, or C1-6 alkylsulphinylamino, C1-6 alky1sulphonylamino, C1-6 alkoxysulphinylamino or C1-6 alkoxysulphonylamino, or ethylenyl terminally substituted by C1-6 alkylcarbonyl, nitro or cyano, or -C(C1-6 alkyl)NOH or -C(C1-6 alkyl)NNH2, or one of R1 and R2 is nitro, cyano or C1-3 alkylcarbonyl and the other is methoxy or amino optionally substituted by one or two C1-6 alkyl or by C2-7 alkanoyl; or R1 and R2 together sit -(CH2)4- or -CH=CH-CH=CH-, or form an optionally substituted triazole or oxadiazole ring; and X is oxygen or NR10 where R10 is hydrogen or C1-6 alkyl with the proviso that the compound is not racemic cis-4-benzoylamino-6-cyano-3,4-dihydro-2,2-dimethyl-2H-benzo[b]pyran-3-ol.
Patent CA-2153842-A1 (CA)
Title: Quick connector with check valve
Inventor: BROWN LANNY
IPC: F16L41/16
Filed: 1995-07-13
Abstract: A fluid connector assembly includes a male member, a female member and a one-way check valve. A first resilient elastomeric member is disposed between the male and female members for retaining the connection between the two members. A second resilient elastomeric member is disposed between the male and female members for sealing the connection between the two members. The one-way check valve is disposed between the male and female members to prohibit fluid flow through the connector assembly in one direction when the male and female members are coupled together.
Patent CA-2156069-A1 (CA)
Title: Air purification and pollution control cyclonic exchanger
Inventor: PARMENTIER MICHEL
IPC: B03C1/00
Filed: 1994-12-15
Abstract: Device for air purification and pollution control using a cyclonic-type exchanger (3). Said exchanger is characterized by means (4, 13, 15) for combining a cyclonic centrigual action with that of at least one field that accentuates the path of partially electrified particles before they enter said field.
Patent CA-2156665-A1 (CA)
Title: Wrist pin-piston assembly
Inventor: DREIMAN NELIK I
IPC: F04B39/00
Filed: 1995-08-22
Abstract: A compressor containing a reciprocating piston connected to a connecting rod by a wrist pin.  The wrist pin is floatingly disposed within the wrist pin bore in the piston by two transverse pin members disposed within bores in the piston which locate the wrist pin therebetween. Incidental cylinder bore contact by the wrist pin is prevented by the pin members.
Patent CA-2159280-A1 (CA)
Inventor: CHESS DAVID DURHAM
IPC: C07C27/00
Filed: 1995-09-27
Abstract: Tertiary butyl alcohol is recovered from a higher boiling fraction  of  an  epoxidation  reaction  product  comprising tertiary butyl alcohol, unreacted tertiary butyl hydroper-oxide,  molybdenum catalyst and by-products formed by the removal of unreacted propylene and propylene oxide from the epoxidation product by: distilling the higher boiling fraction to provide an overhead tertiary butyl alcohol fraction and a higher boiling fraction, charging the higher boiling fraction to a tertiary butyl hydroperoxide decomposition zone and catalytically decomposing the tertiary butyl hydroperoxide contained therein to provide a decomposition product comprising unreacted tertiary butyl hydroperoxide, tertiary butyl alcohol, oxygen, and oxygen-containing by-products including methanol and acetone, distilling  the  decomposition  product  to  provide  an overhead contaminated tertiary butyl alcohol fraction, and distilling  the  contaminated  fraction  to  provide  an overhead impurities fraction and a higher boiling purified tertiary butyl alcohol fraction.
Patent CA-2161875-A1 (CA)
Title: Process for modifying the shape selectivity of a zeolite catalyst and use of the modified catalyst
Inventor: BECK JEFFREY SCOTT
IPC: C07C6/12
Filed: 1994-05-13
Abstract: In a process for modifying the shape selectivity of an aluminosilicate zeolite catalyst having a silica to alumina molar ratio less than 500, the catalyst is exposed to at least two ex situ selectivation sequences, wherein each ex situ selectivation sequence includes the steps of contacting the catalyst with a selectivating agent, normally an organosilicon compound, in a carrier and subsequently calcining the catalyst.
Patent CA-2164575-A1 (CA)
Title: Electromagnetic induction driving method and device
Inventor: ARIMOTO SATOMI
IPC: H02K1/00
Filed: 1995-12-06
Abstract: A drive member is rotatable or movable straight on a principle different from the principle of conventional three-phase or single-phase induction motors.  The drive member 4 of the device of the invention is made of electrically conductive nonmagnetic material, supported rotatably or movably straight and uniform in wall thickness and width.  An outer magnetic member 2 and an inner magnetic member 3 are arranged respectively at the outer side and the inner side of the drive member which are orthogonal to the direction of movement thereof.         At least one of the outer and inner magnetic member has at least three magnetic poles 22 or 32 to provide closed magnetic circuit extending from the respective poles and penetrating the drive member and the magnetic members along a round path.  The poles have a smaller width than the drive member and are arranged centrally of the drive member, so that the drive member has edge portions 41, 41 which are not opposed to the poles, at opposite sides thereof which are orthogonal to the direction of movement.  When fluxes with at least three phase differences are produced at the respective poles of the magnetic circuits, each flux generates an induced current in the drive member, whereby an electromagnetic force acting on the drive member is produced between the flux and the current to move the drive member relative to one or both of the outer and inner magnetic members.
Patent CA-2166708-A1 (CA)
Title: Device for manufacturing pastilles
Inventor: ROCHE MICHEL
IPC: A61J3/06
Filed: 1995-04-01
Abstract: The invention pertains to a device used to manufacture pastilles or pellets by shearing a stream of an extruded mass subject to forces of inertia. The invention consists of a curved tube (2) in which the mass is circulated and which is provided with numerous drilled holes (3) which are situated along a generatrix and through which the mass is expelled at high speed. The tube is forcefully moved (agitated) in order periodically to divide the extruded stream into pieces and in this way break off "drops", which can then be cooled on a flat surface to form pastilles or shaped in free fall into a spherical granulate. An advantageous design involves a percussive device, where the movement is sustained by piezoelectric ceramics: the tube alternately strikes against two rows of metal stops (5) which are reinforced with piezoelectric ceramics (11) and thus impart to the tube the energy lost at the moment of impact and as a result of friction. The device is primarily suited for the pharmaceutical chemical and agricultural feed industries.
Patent CA-2167520-A1 (CA)
Inventor: DENOYA CLAUDIO D
IPC: C12N15/53
Filed: 1994-05-30
Abstract: The present invention relates to DNA sequences that encode for the branched-chain alpha-ketoacid dehydrogenase complex of an organism belonging to the genus Streptomyces and to polypeptidesproduced by the expression of such sequences. It also relates to methods of enhancing the production of natural avermectin and of producing avermectin through fermentation.
Patent CA-2168393-A1 (CA)
Inventor: FRANCES JEAN-MARC
IPC: C08G77/08
Filed: 1996-01-30
Abstract: La présente invention concerne la synthèse de résines polyorganosiloxanes (POS),éventuellement alcoxylées, par condensation non hydrolytique. Le but visé est de fournir un procédé offrant la possibilité d'une maîtrise de la réticulation. Ce but, parmi d'autres, est atteint par le procédé selon l'invention, qui prévoit la mise en oeuvre d'une condensation non hydrolytique entre des motifs alcoxysilyles (Mol) et des motifs halogénosilyles (Mo2) portés tous deux par des silanes identiques ou différents, en présence d'un catalyseur du type acide de Lewis, ladite condensation engendrant essentiellement des liaisons caractérisé en ce que les POS visés comprennent des unités siloxyles D, T et/ou Q voire M, en ce que le catalyseur est choisi parmi les composés métalliques ou les mélanges de ceux-ci, à base d'au moins un métal appartenant au groupe IIIB, IVB ou VB de la classification périodique, et en ce que la température réactionnelle et le ratio initial OR/X sont ajustés de telle sorte que la condensation intervienne sensiblement exclusivement entre les motifs Mo1 et Mo2 avec une extrême minimisation de la condensation parasite entre deux alcoxy OR, donnant le sous-produit R2O.
Patent CA-2169540-A1 (CA)
Title: Magnetic filter assembly
Inventor: BRUNSTING WILLIAM J
IPC: B03C1/28
Filed: 1994-09-06
Abstract: An apparatus for removing metallic particles (53) from lubricating oil used in engines, comprised   of a    magnetic member (34) positioned around a typical engine oil filter (10), a flux amplifier band (36) positioned around the magnetic member (34) and an optional mechanism (38) for adjustably securing the magnetic member (34) and the flux amplifier band (36) to the oil filter (10). Alternatively,  the   magnetic member (34) can be mounted on the inside surface of the canister (14) so that the canister (14) itself acts as the flux amplifier (36). The magnetic member (34) is magnetized so that it has alternating regions of polarity (50, 51) on inside and outside surfaces thereof. The flux amplifier band (36) extends over substantially the entire outer surface of the magnetic member (34) and it increases the intensity of the magnetic field inside the oil filter (10) generated by the flexible magnetic member (34).
Patent CA-2171915-A1 (CA)
Inventor: BOYER JEAN-PIERRE
IPC: F16K15/02
Filed: 1996-03-15
Abstract: Un dispositif anti-retour permettant la diffusion d'un gaz sous pression dans un liquide et comprenant un conduit d'arrivée du gaz pourvu d'une valve anti-retour présentant une face interne et une face externe, cette valve pouvant adopter deux positions distinctes, à savoir une position ouverte permettant le passage d'un flux gazeux de la face interne vers la face externe, et une position fermée. Le dispositif comprend également un boîtier de protection de la valve qui recouvre la face externe de celle-ci. Ce boîtier a un intérieur et un extérieur et est pourvu d'une ouverture principale disposée en regard du flux gazeux provenant de la valve lorsque celle-ci est en position ouverte. Le boîtier comprend également une pluralité d'ouvertures périphériques disposées non en regard du flux gazeux de sorte que lorsque l'extérieur du boîtier est constitué de gaz, le flux gazeux provenant de la valve en position ouverte et passant par l'ouverture principale, provoque une dépression à l'intérieur dudit boîtier. Cette dépression provoque l'aspiration du gaz présent de l'extérieur du boîtier vers l'intérieur de celui-ci par les ouvertures périphériques ce qui produit une purge de l'intérieur dudit boîtier. Ce dispositif anti-retour est notamment utilisable dans des appareils d'hydromassage pour éviter la stagnation de l'eau entre la valve et le boîtier et ainsi la prolifération de moisissures et de bactéries.
Patent CA-2172188-A1 (CA)
Title: Stem Seal
Inventor: NICHOLSON TERENCE PETER
IPC: F16J15/52
Filed: 1996-03-20
Abstract: A valve stem seal comprising a cylindrical stem-sealing membranes 6 and a membrane supporting flange 7. The membrane has a corrugated profile which defines on or more loop-shaped channels 11 bounded by contact surfaces 13 on a radially inner face and each channel is inclined at 5 DEG -10 DEG  with respect to a plane perpendicular to the longitudinal axis. The channels form a labyrinth seal for any fluid leaking along the outer surface of the stem. A support bearing 8 for the stem is provided on the membrane supporting flange. <IMAGE>
Patent CA-2172662-A1 (CA)
Title: Method of playing game and gaming device with an additional payout indicator
Inventor: ADAMS WILLIAM R
IPC: A63F5/04
Filed: 1996-03-26
Abstract: Gaming devices comprising a standard gaming unit, e.g., three reels, and a discernible additional payout indicator, e.g., a rotatable wheel. A preferred bonus payout indicator is clearly visible by the player and is actuatable when the reels of the slot machine stop on certain predetermined indicia. A preferred embodiment further comprises a payout multiplier which displays a plurality of values by which a payout may be multiplied.
Patent CA-2174873-A1 (CA)
Title: Chip pumping to a continuous digester
Inventor: PROUGH J ROBERT
IPC: D21C7/06
Filed: 1996-04-24
Abstract: A system for feeding wood chips entrained in cooking liquor to a high pressure feeder connected to a continuous digester includes a vertical treatment (e.g. steaming) vessel, a metering device connected to the discharge from the steaming vessel, a generally vertical chip chute extending downwardly from the metering device, and a slurry pump having an inlet. The slurry pump pumps the slurry from an outlet thereof to a high pressure feeder low pressure inlet. In order to minimize the effect of changes in liquid volume upon the operation of the system, and to provide separate control of liquor volume and chip volume, a substantially vertical liquor tank having a top and bottom the bottom including a discharge opening above the slurry pump inlet is provided. A conduit directly connects the liquor tank discharge opening with the slurry pump inlet. A pressure isolating device may be used in the system if it is to operate at superatmospheric pressure rather than atmospheric pressure.
Patent CA-2178323-A1 (CA)
Inventor: BIAGIOTTI GUGLIELMO
IPC: B05C1/02
Filed: 1994-12-05
Abstract: PCT No. PCT/IT94/00202 Sec. 371 Date May 24, 1996 Sec. 102(e) Date May 24, 1996 PCT Filed Dec. 5, 1994 PCT Pub. No. WO95/15902 PCT Pub. Date Jun. 15, 1996A device for gluing the tail end of a reel of wound web material, comprises: conveying means for moving the reel, unwinding means for unwinding the tail end of the web material, a dispenser of glue for applying the glue to the reel, and means for rewinding the tail end after the glue has been applied. Said dispenser includes an upwardly oriented aperture from which the glue is dispensed and includes a container for the glue with said upwardly oriented aperture and a moving member positioned inside said container which is immersed in the glue contained in the container and moved towards said upwardly oriented aperture in order to dispense the glue to the reel as it rolls over said aperture.