baber/WOPTO huggingface dataset:
Patent CA-2116468-C (CA)
Inventor: GROLMAN ROBERT J
IPC: C01F7/0693
Filed: 1994-02-25
Granted: 1998-10-27
Abstract: A process for recycling spent potlining material from aluminum reduction cells contaminated with fluoride and aluminium values.  The process comprises first reducing the average particle size of the spent potlining material to smaller than 28 Tyler mesh to form a powder.  The powder is then treated with an aqueous sodium hydroxide solution containing about 10 to 60 g/L of sodium hydroxide at a temperature in the range of between 60 and 90°C to form a solution containing fluoride and sodium aluminate and a residual solid.  The solution is removed from the residual solid and the content of NaOH is adjusted in the solution to the range of about 10 to 60 g/L of NaOH, if the content differs from this range, to produce a solution suitable for cyanide destruction.  This solution is then heated to a temperature in the range of about 160 to 220°C at a pressure in the range of about 150 to 350 p.s.i. for a time of between about l/2 and 3 hours to destroy cyanide values in the solution.  Water is evaporated from the resulting solution to cause fluoride compounds in the solution to crystallize. The fluoride crystals are then separated from the sodium aluminate-containing solution and may be recrystallized or reacted with calcium hydroxide to precipitate calcium fluoride from a solution of sodium hydroxide.  The sodium hydroxide may then be used for the treatment of further potlining material.
Patent CA-2119508-C (CA)
Title: Connector with mounting collar for use in universal patch panel system
Inventor: ARNETT JAIME RAY
IPC: H04Q1/14
Filed: 1994-03-21
Granted: 1997-05-27
Abstract: In a preferred embodiment, a device which is capable of being mounted in an opening in a panel, and which is adapted to hold a component, comprises two parallel side portions each being made of a plastic material, each side portion including a depending portion at each end thereof. Each of two moveable arms extends between corresponding ends of said side portions and is hingedly connected thereto. Each moveable arm includes two detents projecting from an outer surface of the arm such that when forces are applied to free end portions of the arms to move the free end portions toward each other, the device is capable of being inserted into an opening in a panel until a face of the panel abuts the depending portions of the side portions whereupon the application of forces is discontinued to allow the arms to move outwardly and cause the detents of each arm to snap-lock into engagement with an opposite side of the panel. Furthermore, the present invention additionally includes means which allows the patch panel to adequately support the component in a position which provides ready frontal access to all wiring associated with any single component.
Patent CA-2123699-C (CA)
Title: An adsorbent for cellular fibronectin, a method for fractional purification of fibronectin and a method of hemocatharisis
Inventor: KOMAI TAKASHI
IPC: B01J20/24
Filed: 1993-09-22
Granted: 1999-12-07
Abstract: This invention provides a selective cellular fibronectin (cFN) adsorbent utilizing a nonwoven cellulose sulfate fabric and a method for fractional purification of FN which comprises contacting an FN matter containing both plasma fibronectin (pFN) and cellular fibronectin (cFN) with the nonwoven cellulose sulfate fabric to separate pFN and cFN from each other. By the fractional purification method of the invention, cFN and pFN can be fractionated in an expedient manner and with high efficiency and both pFN and cFN can be recovered in high purity and good yield.
Patent CA-2141871-C (CA)
Inventor: KIM HYUN S
IPC: A61P31/04
Filed: 1994-06-02
Granted: 1999-05-11
Abstract: La présente invention concerne de nouvelles souches de Pseudomonas aeruginosa atténuées inoffensives, obtenues par isolation de Pseudomonas aeruginosa dans un état pur selon l'immunotype de Fisher-Devlin et ensuite par purification répétée de la souche isolée, notamment des souches CFCPA 10142 (KCCM 10029), CFCPA 20215 (KCCM 10030), CFCPA 30720 (KCCM 10031), CFCPA 40057 (KCCM 10032), CFCPA 50243 (KCCM 10033), CFCPA 60534 (KCCM 10034) et CFCPA 70018 (KCCM 10035). En outre, la présente invention concerne un vaccin pour l'immunisation contre l'infection par Pseudomonas aeruginosa, qui comporte des protéines de paroi cellulaire ayant un poids moléculaire compris entre 10.000 et 100.000, lesquelles sont dérivées des souches de Pseudomonas aeruginosa atténuées, un agent thérapeutique permettant de traiter l'infection par Pseudomonas aeruginosa et contenant une ou des immunoglobulines induites par les protéines de paroi cellulaire chez un animal d'expérience, ainsi que des procédés pour leur préparation. Le constituant protéique de paroi cellulaire de la souche atténuée est non pathogène et inoffensif, présente une excellente formation d'anticorps et est utile pour la préparation d'un vaccin et d'un agent thérapeutique. Les protéines de paroi cellulaire présentent une excellente capacité de protection croisée contre diverses souches de Pseudomonas aeruginosa et des caractéristiques supérieures d'induction d'anticorps.
Patent CA-2147616-C (CA)
Inventor: JARVIK ROBERT
IPC: A61M60/183
Filed: 1993-10-18
Granted: 2004-01-20
Abstract: A cannula pump (10) is provided which incorporates a miniature rotary pump into a cardiac cannula of essentially the same size as currently utilized with routine cardiopulmonary bypass. The pump may be inserted via a single small incision in the heart to obtain both inflow and outflow cannulation simultaneously, and provide sufficient flow to completely unload the ventricle during its use. Because application of the device is extraordinarily simplified, it is suitable for rapid emergency insertion in any setting where the chest can be safely opened, including emergency room and battlefield applications. A small electric motor (16), implanted within the heart, provides power to the impeller (36) via a small shaft (34) supported on blood immersed bearings (42). A disposable cannula pump utilized with a reusable motor provides an inexpensive device for routine surgical use.
Patent CA-2153937-C (CA)
Title: Tricyclic pyrazole derivatives
Inventor: WICHMANN JURGEN
IPC: A61K31/415
Filed: 1995-07-14
Granted: 2007-04-10
Abstract: The invention is concerned with tricyclic pyrazole derivatives of the general formula (see formula I) wherein R1 to R4 ~each signify hydrogen, hydroxy, halogen, lower alkyl, lower alkoxy or phenyl;      R5 ~~signifies hydrogen or lower alkyl, R6 ~~signifies hydrogen, lower alkyl or lower alkoxy;      X ~~signifies -(CR7R8)n- or -CH=CH-;      R7 and R8 ~signify hydrogen or lower alkyl and n ~~signifies 1 or 2, as well as pharmaceutically acceptable salts of basic compounds of general formula I.      These compounds and salts are suitable for use as therapeutically active substances, especially for the treatment or prevention of central nervous disorders such as depressions, bipolar disorders, anxiety states, sleep and sexual disorders, psychoses, schizophrenia, migraine and other conditions associated with cephalic pain or pain of a different kind, personality disorders or obsessive-compulsive disorders, social phobias or panic states, mental organic disorders, mental disorders in childhood, aggressivity, age-related memory disorders and behavioural disorders, addiction, obesity, bulimia etc., damages of the nervous system by trauma, stroke,~ neuro-degenerative diseases etc., cardiovascular disorders such as~ hypertension, thrombosis, stroke etc. and gastrointestinal disorders such as dysfunction of the gastrointestinal tract motility.
Patent CA-2158256-C (CA)
Inventor: POTRATZ ROBERT S
IPC: A61B5/145
Filed: 1994-03-21
Granted: 2005-08-23
Abstract: A pulse oximeter which modifies the alarm condition when motion is detected.  Basically, if the lack of a pulse is determined to be as a result of motion artifact, the generation of an alarm is postponed. In addition, the display indicates that motion is present and that the last reading is questionable due to the presence of motion. The invention also determines if motion artifact is present from the pulse oximeter detector signal itself. The ratio of the positive and negative peaks of the derivative of the pulse signal are compared to a motion/blood pulse threshold.
Patent CA-2169695-C (CA)
Title: Substituted benzenesulfonylureas and -thioureas, processes for their preparation, their use for the production of pharmaceutical preparations and medicaments containing them
Inventor: ENGLERT HEINRICH
IPC: C07D303/48
Filed: 1996-02-16
Granted: 2008-05-20
Abstract: Substituted benzenesulfonylureas and -thioureas of the formula I   exhibit outstanding effects on the cardiovascular system.
Patent CA-2169940-C (CA)
Title: Training video method and display
Inventor: WEINREICH STEPHEN
IPC: A47F11/06
Filed: 1994-08-12
Granted: 2004-12-28
Abstract: Method and display for training and other uses, which may be in the form of a special video, diorama, or print format. The preferred embodiment shows a bright visual image against a dark background. This invention is particularly useful in the Illusion Apparatus of U.S. Patent 4,971,312 and in an electronic system also disclosed.</SDOA B>
Patent CA-2170684-C (CA)
Inventor: HENTILAE ESA
IPC: D21F1/48
Filed: 1996-02-29
Granted: 1999-08-10
Abstract: A rib construction for a draining device in a paper machine in which a loading rib is used to support and/or to load a wire or wires in a paper machine and/or to doctor water from the face of a wire or wires. The rib is loaded by pressure of a medium. Between the rib and its frame part, a pressure space is formed and defined by a flexible belt and into the loading pressure is passed into this pressure space. The flexible belt defines the pressure space so that the area of effect of the loading force is independent from the movement of the rib toward the wire(s).
Patent CA-2178666-C (CA)
Inventor: DEE MARK R
IPC: G07F17/24
Filed: 1996-06-10
Granted: 2002-01-01
Abstract: An electronic module for enhancing an operation of a conventional parking meter. The electronic module comprises a shell defining a hollow conformation and being attachable to a conventional parking meter, in substitution to an upper housing portion of that conventional parking meter.      The electronic module has a meter condition sensor for detecting from a distant point one of the time expiry indicator and the violative condition indicator of that parking meter, when the indicator is in an indicating mode, and a vehicle sensor affixed to the shell for detecting from a distant point, a parked vehicle. The electronic module further has: an electronic circuitry mounted inside the shell and having a power source for operating the module; means for receiving a first signal from the meter condition sensor and a second signal from the vehicle sensor; means for processing the first and second signals and means for transmitting a coded message to a remote receiver. Each side of the shell has a light operable into an ON mode by the electronic circuitry simultaneously to a transmission of the coded message. There is also provided on a front face of the shell, an electronic display screen for displaying an advertisement message to a user of this parking meter, and on a top portion thereof, a solar panel to recharge the battery of the electronic circuitry.
Patent CA-2185807-C (CA)
Inventor: MUELLER RUDOLF R M
IPC: F16B37/06
Filed: 1995-03-22
Granted: 2005-07-26
Abstract: Organe de fixation (10) comportant une partie tige (16) et une partie tête (12) faisant corps avec celle-ci, ensemble comportant une pièce en tôle métallique (52) et l'organe de fixation (10), procédé de fabrication de cet ensemble, et bouterolle (54) pour la fabrication dudit ensemble. La face inférieure (18) de la partie tête (12) comprend, au voisinage de la partie tige (16), un certain nombre de concavités peu profondes écartées les unes des autres (20) dans lesquelles vient s'engager la tôle métallique. La partie tige (16) comprend au moins un creux (28). La bouterolle (54) comprend une ouverture centrale (60) accueillant la partie tige (16), et une zone annulaire (64) entourant cette ouverture et comprenant des zones en saillie (72) et en retrait (74) aptes à déformer la pièce en tôle métallique (52) pour qu'elle s'engage dans les concavités (20) ménagées dans la partie tête (12) et pour qu'elle s'engage radialement vers l'intérieur dans le creux de la partie tige (16), de manière à constituer un ensemble fait d'un organe de fixation (10) et d'une pièce en tôle métallique (52).
Patent CA-2190857-C (CA)
Title: Micro-cellular radio communications systems
Inventor: GRANDHI SUDHEER A
IPC: H04W16/32
Filed: 1995-06-28
Granted: 1999-12-28
Abstract: A micro-cellular radio communications system (microsystem) is arranged to re-use radio frequency channels which are assigned for use in a cellular ra-dio system (macrosystem) in the same vicinity. The microsystem maintains a list (52) of each frequency channel which is in current use in any microcell of the microsystem. In each microcell of the microsys-tem a signal characteristic, for example received signal strength, of each frequency channel is repeatedly mea-sured when the channel is not in current use in any microcell of the microsystem, and the measurements are used by a cell spectrum scavenger (56) to deter-mine a long-term statistical preference (60) for re-use of a favoured set of the frequency channels in that mi-crocell. For each microcell, a cell spectrum manager (58) gives the frequency channels in the favoured set a short-term order for actual use in dependence upon frequent measurements of the signal characteristic for the microcell regardless of whether or not the channel is in current use in any other microcell.
Patent CA-2190941-C (CA)
Title: Low-cost light-weight head-mounted virtual-image projection display with low moments of inertia and low center of gravity
Inventor: CHEN CHUNGTE W
IPC: G09B9/36
Filed: 1996-05-08
Granted: 2001-01-02
Abstract: A head-mounted display device (10) offers light weight, a low center of gravity, and low moments of inertia about the azimuthal and elevational axes of head movement. The display device (10) employs an angulated beam splitter mirror (16) disposed between a user's (22) eye (20) and an inner combiner surface (18a) of a visor (28). A projector (36) is carried laterally of the user's eye with a low center of gravity and a position close to the horizontal axis of elevational movement of the head. This projector (36) includes an image source (12) and an compact light-weight relay optics module (14) along with a projection fold mirror (30) disposed at eye level and laterally of the beam splitter mirror (16) to project image light to the beam splitter mirror (16). The beam splitter mirror (16) reflects the light onto the inner surface (18a) of the combiner (18) for reflection back through the beam splitter mirror (16) and to the user's eye (20). Alternative embodiments provide for color correction, or for monochrome image projection at even lighter weight. An alternative embodiment provides for both color correction and a weight nearly as light as the monochrome version by use of diffractive lenses in the relay optics module.
Patent CA-2192397-C (CA)
Title: Method and system for performing speech recognition
Inventor: RAHIM MAZIN G
IPC: G10L21/0208
Filed: 1996-12-09
Granted: 2001-04-03
Abstract: Speech recognition processing is compensated for improving robustness of speech recognition in the presence of enhanced speech signals. The compensation overcomes the adverse effects that speech signal enhancement may have on speech recognition performance where speech signal enhancement causes acoustical mismatches between recognition models trained using unenhanced speech signals and feature data extracted from enhanced speech signals. Compensation is provided at the front end of an automatic speech recognition system by combining linear predictive coding and mel-based cepstral parameter analysis for computing cepstral features of transmitted speech signals used for speech recognition processing by selectively weighting mel- filter banks when processing frequency domain representations of the enhanced speech signals.
Patent CA-2194920-C (CA)
Inventor: LOCKRIDGE KATHLEEN A
IPC: A61M1/00
Filed: 1997-01-13
Granted: 1999-07-20
Abstract: A connector for use in single and double breast pumping modes of operation of a breast pump has a tubular housing with an internal wall extending across the housing interior and dividing it into two chambers. One chamber has a first nipple extending from the internal wall and into air communication with the second chamber, the first nipple being adapted for attachment of an air tube leading to a breast shield in a single-pumping mode. The other chamber has two nipples extending from the internal wall each of which are in air communication the first chamber.  Preferably, the three nipples are joined through a common air/vacuum junction. The second and third nipples are likewise adapted for attachment of an air tube thereto in a double-pumping mode.      A detachable connection is provided so that the tubular housing can be alternately attached into the vacuum line with either the first or second chambers exposed for attachment of one or more air tubes to the exposed nipples. An adapter is preferably provided which receives a vacuum tube from a vacuum source in one side and has a tubular part to which either side of the connector's tubular housing can be screwed together with the adapter to enclose one or the other of the two chambers, leaving the nipple(s) of the other chamber exposed for air tube attachment.
Patent CA-2195153-C (CA)
Inventor: LAM DENNIS K W
IPC: H04B10/077
Filed: 1997-01-15
Granted: 2003-12-30
Abstract: A surveillance system for in-service fault identification in an amplified passive branched optical network is provided. This system does not require any wavelength tunable light source as used in multi-wavelength OTDR. Fiber-Bragg gratings are placed at some strategic positions on different fiber branches to slice and reflect the optical amplifier's residual ASE power at some wavelength other than the signal wavelengths. The conditions of the fiber link and optical amplifier at each branch can be monitored by constantly checking the reflected power level of the corresponding wavelength without suspending the in-service channels.
Patent CA-2196777-C (CA)
Inventor: WELLINGHOFF STEPHEN T
IPC: A01N59/08
Filed: 1996-06-04
Granted: 2004-08-10
Abstract: A biocidal powder for sustained release of chlorine dioxide includes particles containing chlorite anions, and a hydrophobic core having the particles on a surface thereof, the hydrophobic core containing an acid releasing agent. The particles and the hydrophobic core are substantially free of water, and the particles are capable of releasing chlorine dioxide upon hydrolysis of the acid releasing agent.
Patent CA-2201448-C (CA)
Inventor: RAISSON GERARD
IPC: C25D5/34
Filed: 1997-04-01
Granted: 2004-06-22
Abstract: The external surface of a copper or copper alloy mould, which may comprise one or two rollers and is used for continuous casting of metal, is degreased, pickled in acid, polished and electrolytically coated with nickel, using an aqueous electrolyte solution of nickel sulphamate containing 60-100 gms. of nickel per litre with the mould acting as cathode. The mould is then used for a period, after which the coating is partly or wholly removed electrolytically, the mould acting as anode in an electrolyte comprising the same amount of nickel sulphamate plus 20-80 gms/litre of sulphamic acid giving it a pH of up to 2, and then a new nickel coating is applied.
Patent CA-2202172-C (CA)
Inventor: MARCHAL PAUL
IPC: D21F5/20
Filed: 1996-03-20
Granted: 2008-08-26
Abstract: PCT No. PCT/FR96/00414 Sec. 371 Date Sep. 19, 1997 Sec. 102(e) Date Sep. 19, 1997 PCT Filed Mar. 20, 1996 PCT Pub. No. WO96/29467 PCT Pub. Date Sep. 26, 1996A method for drying a cellulose web, in particular a moist paper web evincing a dry-state specific surface weight of between 10 and 80 g/m2 and initially a solids content between 8 and 30% approximately, and including supporting the web on a permeable conveying fabric and having a high-speed flow of hot air pass through the web, is characterized in that the flow of air is generated by a relative negative pressure of 100 to 500 mbars generated underneath the fabric.
Patent CA-2204673-C (CA)
Inventor: MCGIFFNEY GREGORY J
IPC: C02F5/10
Filed: 1997-04-25
Granted: 2008-08-19
Abstract: A method of treating water to inhibit the formation of salt scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of mineral salts in brine concentration and evaporation systems. The method comprises introducing into the system an alkyl epoxy carboxylate of the general formula:   where n ranges from about 2 to about 11, M is hydrogen or a water soluble cation such as Na+, NH4+ or K+ and R is hydrogen, C1-4 alkyl or C1-4 substituted alkyl.
Patent CA-2210024-C (CA)
Inventor: POPPER JAY D
IPC: H02J9/00
Filed: 1997-07-15
Granted: 2005-06-28
Abstract: A method and apparatus for providing power management functions in a computer or other electronic system which includes a primary power supply, a trickle power supply and a battery back-up power supply. A power management circuit includes a storage element which stores an indication of the current turn-on or turn-off condition of the primary power supply. The power management circuit also includes a group of logic gates which process signals which are supplied to the storage element under normal operating conditions to control the turn-on or turn-off condition of the primary power supply. The power management circuit senses when the trickle supply is deactivated due to a line power failure or the like, and subsequently switches the power supply inputs of the storage element and certain of the logic gates from the trickle supply to the battery back-up supply. A blocking signal is generated which prevents those signals which require the trickle supply for logic integrity from being applied to the storage element. In this manner, only signals which do not require the trickle supply for logic integrity are applied to the storage element while the trickle supply is deactivated.
Patent CA-2212342-C (CA)
Inventor: HALL BERTIE FORREST JR
IPC: H05B3/46
Filed: 1995-02-21
Granted: 2000-05-16
Abstract: A tubular heating element (10) having a metal tube (12) filled with a ceramic material (14). The metal tube has a near zero or slightly positive temperature coefficient of resistance. In an alternative embodiment, a wire (16) is coaxially supported within the metal tube (12) by the ceramic material (14).  This wire may be used to stiffen the tubular heating element (10) or may be used as an electrical conductor.
Patent CA-2222650-C (CA)
Title: Tnf-.alpha. converting enzyme
Inventor: CERRETTI DOUGLAS P
IPC: C12Q1/37
Filed: 1996-06-03
Granted: 2009-10-13
Abstract: A metalloprotease that converts TNF-.alpha. from the 26kD cell form to the cell form to the 17 kD form has been isolated and purified and the cDNA sequence known. In particular, the protease has a molecular weight of approximately 80 kD. The isolated and purified protease is useful for designing an inhibitor thereof, and may find use as a therapeutic agent. Assays for detecting the protease-inhibiting activity of a molecule are also an aspect of the invention.