baber/WOPTO huggingface dataset:
Patent AU-738197-C (AU)
Title: Carbocyclic and heterocyclic substituted semicarbazones and thiosemicarbazones and the use thereof
Inventor: WANG YAN
IPC: A61P9/06
Filed: 1998-04-22
Granted: 2002-05-16
Abstract: This invention is related to carbocyclic and heterocyclic substituted semicarbazones and thiosemicarbazones represented by Formula I:or a pharmaceutically acceptable salt or prodrug thereof, wherein:Y is oxygen or sulfur; R1, R21, R22 and R23 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl; or R22 and R23, together with the N, form a heterocycle; A1 and A2 are independently aryl, heteroaryl, saturated or partially unsaturated carbocycle or saturated or partially unsaturated heterocycle, any of which is optionally substituted; X is one or O, S, NR24, CR25R26, C(O), NR24C(O), C(O)NR24, SO, SO2 or a covalent bond; where R24, R25 and R26 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl. The invention also is directed to the use of carbocycle and heterocycle substituted semicarbazones and thiosemicarbazones for the treatment of neuronal damage following global and focal ischemia, for the treatment or prevention of neurodegenerative conditions such as amyotrophic lateral sclerosis (ALS), for the treatment and prevention of otoneurotoxicity and eye diseases involving glutamate toxicity and for the treatment, prevention or amelioration of pain, as anticonvulsants, and as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy and urinary incontinence.
Patent CA-2013632-C (CA)
Title: Antenna pointing device
Inventor: LABRUYERE GILLES
IPC: H04B7/185
Filed: 1990-04-02
Granted: 1994-05-24
Abstract: ABSTRACT          An  articulated device  to  be used  for pointing satellite  antennas,  especially  of  data  relay  or  like telecommunication satellites.  It comprises at least three articulations rotatable about their respective axes coupled in pairs by arms.  These rotation axes intersect at a remote virtual rotation center coinciding with the antenna's focus. The device allows pointing of an antenna by moving its reflector, while maintaining the antenna feed at its focus, thus avoiding antenna radiation pattern distortion.
Patent CA-2023306-C (CA)
Title: Laser alignment control system
Inventor: HAMAR MARTIN R
IPC: B23Q3/18
Filed: 1990-08-15
Granted: 1999-09-14
Abstract: A laser alignment control system comprises a method and apparatus wherein a rotating member such as a spindle can be properly aligned with a workpiece for manufacturing operations thereon. The system comprises a laser whose beam impinges on a target with the laser and target being interchangeably mounted on a spindle and a "master part". Information from the target is fed through interface circuitry to a computer which calculates an "effective target" relative to the shim feet under the movable master part or spindle. This "effective target" gives the system capability for aligning the operating member both as to coincidence of location and appropriate incident angle with points within the workpiece which are physically inaccessible. The computer outputs information onto a multiplicity of display screens wherein an operator can align the spindle with the "master part" axis by a series of shimming movements. The major steps of spindle alignment comprise making the ways of the wingbase supports for the spindle straight, adjusting the wingbase ways such that they are parallel to the "master part" axis, making the spindle axis parallel to the "master part" axis, and centering the spindle to the "master part" axis.
Patent CA-2027550-C (CA)
Inventor: PAWLISZYN JANUSZ B
IPC: G01N30/32
Filed: 1990-02-16
Granted: 1995-12-26
Abstract: A method and apparatus for delivering supercritical fluids uses one or two high pressure vessels.  Each vessel is cooled below the critical temperature of the fluid while the vessel is being filled.  The inlet is then closed and the vessel is heated to attain a predetermined pressure.  The outlet of the vessel is then opened and supercritical fluid flows from the vessel for use in various processes such as extraction or chromatography.  As the fluid flows from the high pressure vessel, the pressure is controlled by adjusting the temperature of the high pressure vessel.  Usually, the temperature of the vessel will be increased as the supercritical fluid exits from the vessel.  When two high pressure vessels are used, the vessels can be refilled on an alternating basis so that a continuous supply of supercritical fluid can be made available as long as it is required.  The high pressure vessels can be two pieces of stainless steel tubing.  The system is essentially maintenance free as there are virtually no moving parts.  With previous delivery systems for high pressure fluids, high pressure pumps are used.  These pumps are relatively expensive and can be subject to problems such as noise and leakage.
Patent CA-2028231-C (CA)
Title: Communication system comprising a called receiver and a communication apparatus
Inventor: MAKITA HIROSHI
IPC: H04W84/02
Filed: 1990-10-22
Granted: 1994-10-04
Abstract: ABSTRACT OF THE DISCLOSURE         A  communication  system  is  disclosed  having  a portable radio called receiver and a communication apparatus for calling this receiver.  The portable radio called receiver includes a display and a tone generating circuit.   The communication apparatus includes a determination circuit, a control circuit, a voice signal recording device, a facsimile device,  a memory,  and a data processing  circuit.    The determination circuit determines whether a signal entered through a telephone line is a facsimile signal or a voice signal.   The memory stores display data  indicating the reception of an image signal, display data indicating the reception of a voice signal, and telephone number data of the portable radio called receiver. The control circuit is responsive to the output of the determination circuit to select one of the plurality of display data stored in the memory.  The data processing circuit modulates the calling number of the portable radio called receiver and the selected display data and transmits the same on the telephone line. With such a structure, the display of the portable radio called receiver can display whether the received signal of the communication apparatus is an image signal or a voice signal.
Patent CA-2038792-C (CA)
Title: Rising brace for invalid walker and method
Inventor: CUNNINGHAM THOMAS W
IPC: A61H3/00
Filed: 1991-03-21
Granted: 2002-01-01
Abstract: A portable aid for assisting an invalid or elderly person in rising from a sitting position includes a portable vertical support and a brace member attached and stored with the portable vertical support. The brace member extends away from the vertical support and has a dimension in the horizontal direction sufficient to extend across the seat of the chair to permit a sitting person to push downwardly upon the brace member for assistance in rising to a standing position.
Patent CA-2039946-C (CA)
Title: System for controlling the grinding of roast coffee
Inventor: ILLY ERNESTO
IPC: A23N12/12
Filed: 1991-04-08
Granted: 1999-07-06
Abstract: System  for controlling the  grinding  of  roast  coffee consisting of -    A coffee grinder (3); -     A  conveyor  (T) for  transporting  ground  coffee  to packing machinery; -     A  test-meter  (5) which uses a  laser  beam  (R)  and compares ground coffee samples with a reference sample; -    A first device (1) which receives ground coffee samples from the stream of ground coffee (2) coming fro- the grinder (3) and releases these samples into a second device; -     A  second compressed-air operated  device  (II)  which disperses  the samples before delivering then to  the test-meter (5); -     A  third co-pressed-air operated  device  (III)  which protects  the lenses (25) of the test-meter (5) from  coffee grains, and; -    A fourth device (IV) which recovers ground coffee  from the  analysis area and delivers it to the conveyor (T)  used to transport ground coffee to the packing machinery.
Patent CA-2045677-C (CA)
Inventor: CZERWONIAK ERICH
IPC: D21D5/16
Filed: 1990-12-05
Granted: 2001-08-21
Abstract: In a screen for pressure sorters for fiber suspensions which is of rotationally symmetrical shape in relation to a screen axis and the screen wall of which is pro-vided with screen opening channels connecting the screen inlet side with the screen outlet side and on its inlet and outlet sides with recesses into which the screen opening channels open, in order to improve the through-put capacity of the screen, to simplify its manufacture, to achieve good fatigue strength of the screen and to generate turbulences at the screen inlet side, each of the recesses on the inlet side extends over several screen opening channels and is in the form of a groove extending transversely to the circumferential direction of the screen, a recess is provided for each screen opening channel on the screen outlet side, and the largest width of the recesses on the outlet side is at least as large as the largest width of the grooves on the inlet side.
Patent CA-2056533-C (CA)
Title: Optical fiber component, optical coupler and method of producing thereof
Inventor: HOSHINO SUMIO
IPC: G02F1/35
Filed: 1991-11-28
Granted: 2000-02-15
Abstract: There is disclosed an optical fiber component having amplifying capabilities and a method of producing the same.      The optical fiber component includes a light amplifying portion which serves as an optical amplifier. In the method of manufacture the amplifying portion is, for example, formed by utilizing sol-gel to introduce the active elements.
Patent CA-2066336-C (CA)
Inventor: WESTON JOHN D
IPC: D21B1/02
Filed: 1992-04-16
Granted: 2003-01-21
Abstract: The proper pressure conditions are maintained within an atmospheric pre-steaming chips bin used in the production of paper pulp. Extending upwardly from the top of the chips bin is a vertical section of conduit, an elbow section, and a horizontal section. A door guide with a door opening in it is disposed in the horizontal section and precludes passage of gas through the horizontal section except through the door opening. A pivot pin mounts a door at its top so that it normally assumes a vertical orientation closing off the opening, and it is adjustably biased into that orientation by a counterweight mechanism. The counterweight includes weight discs which mount on a vertical section of rod having external screw threads, and a horizontal section of rod is connected by a flange to a flange of the pivot pin. The door remains closed unless the pressure differential between the chips bin and the surrounding environment is greater than about 2 psig, in which case gas may flow from the environment to the chips bin, or vice versa, to bring the pressure differential within the desired range.
Patent CA-2066463-C (CA)
Title: Edge strip
Inventor: WEBB WAYNE K
IPC: C25C7/02
Filed: 1992-04-21
Granted: 1999-11-30
Abstract: The invention relates to an edge strip for a cathode plate. The edge strip comprises a non-inflatable elongate body of a thermoplastic material which body includes a longitudinal opening to accommodate an edge of the cathode plate and at least one continuous longitudinal internal groove on an inside surface of the opening.
Patent CA-2071063-C (CA)
Title: Plastics packaged optical fibre
Inventor: SHACKLETON NIGEL
IPC: G02B6/44
Filed: 1992-06-11
Granted: 2001-10-30
Abstract: An optical fibre, comprising a glass core 10 surrounded by a glass cladding (II) of lower refractive index, is provided with inner and outer relatively high modulus plastics layers (12 and 14) spaced apart by a relatively low modules layer 13. The low modules layer is applied from an aqueous dispersion, and is dried but not sintered. This leaves the layer (13) in a form in which it has little adherence to the underlying inner plastics layer (12), thereby enabling the outer layer (14) to be readily peeled by mechanical means.
Patent CA-2073589-C (CA)
Title: Biooxidation process for recovery of metal values from sulfur-containing ore materials
Inventor: BRIERLEY JAMES A
IPC: C22B3/18
Filed: 1992-07-10
Granted: 2006-09-12
Abstract: A process for biooxidation of sulfides in a heap of mineral ores by freeing precious metals dispersed or occluded within said ores as pyritic or arsenopyritic sulfides and the like; the process comprises forming particulates from ore particles with an inoculate comprising bacteria capable of attacking, by biooxidation, sulfides and/or elemental sulfur in said or. particles; agglomeration aids may be used for forming particulates in conjunction with the foregoing which are acid resistant and not attacked by the bacteria; from these particulates a heap is constructed; and the biooxidation takes place in such heap by further adding to or dispersing within the heap the biooxidation solution and thereafter a leaching solution, circulating the leaching solution within the heap and recovering the precious metal values from the heap; recovery may be accomplished with a cyanide, thiourea, or a thiosulfate lixiviant.
Patent CA-2077627-C (CA)
Title: Method and means to prevent condensation in monocoque structures
Inventor: NORDSTROEM CHRISTER
IPC: F24F3/14
Filed: 1991-02-13
Granted: 1999-12-07
Abstract: In order to prevent moisture from condensing into water in an intermediate space between an outer hermetic shell and an inner partition of an airplane, or for removing any water present in the intermediate space, dry air having a relative humidity of less than 50% is directed into the intermediate space from a dehumidifying device which accepts humid air from inside the passenger compartment.
Patent CA-2078632-C (CA)
Title: Sts-1 signal processing method and device which can prevent subsequent terminal equipment from generating unnecessary alarm
Inventor: NAKAGAWA TATSUHIKO
IPC: H04J3/14
Filed: 1992-09-18
Granted: 1997-12-30
Abstract: .     Abstract of the Disclosure:     In a processing device for processing an STS-1 signal (10) into a DS-3 signal (11), an output circuit (19) outputs an idle code signal when a judging circuit (16) judges that a detected STS path signal label part indicates that an STS synchronous payload envelope of the STS-1 signal is unequipped or unused.  The idle code signal represents an idle code prescribed for the DS-3 signal and is generated by a generator (18).  The detected STS path signal label part is produced by a detecting circuit (12, 15) which detects an STS path signal label part from STS path overheads of successive subframes of the STS synchronous payload envelope.  The judging circuit judges whether or not the detected STS path signal label part indicates that the STS synchronous payload envelope is unequipped.  An extracting circuit (17) successively extracts information parts of payloads of the subframes of the STS synchronous payload envelope from the STS-1 signal as a succession of extracted information parts.  The output circuit outputs the succession of the extracted information parts as the DS-3 signal when the judging circuit judges that the detected STS path signal label part indicates that the STS synchronous payload envelope is not unequipped.  On processing a VT into a DS-1 signal, use is made of another idle code prescribed for the DS-1 signal.
Patent CA-2078812-C (CA)
Inventor: PERRON CLAUDE
IPC: F16K35/06
Filed: 1992-09-22
Granted: 1998-05-19
Abstract: Le dispositif de verrouillage immobilise la manette de commande de soupape aussi bien en sa position fermée qu'en sa position ouverte. Il consiste en une partie mâle et en une partie femelle. La partie mâle comprend une cavité allongée, afin de recevoir à plat et librement la manette de soupape, et un prolongement en forme de U, s'allongeant transversalement à partir d'une extrémité du corps principal de la partie mâle. La partie femelle définit un canal permettant un engagement coulissant de la partie mâle et de la manette de soupape reliée à la partie mâle, afin de les verrouiller les uns aux autres. Un cadenas barre les parties mâle et femelle en y engageant des oreilles en regard les unes aux autres.
Patent CA-2081488-C (CA)
Title: Ultrasonic bolting control apparatus
Inventor: HOLT WILLIAM J
IPC: G01L5/24
Filed: 1992-10-27
Granted: 1995-12-05
Abstract: Apparatus (10) for measuring and controlling the tensile load on a fastener (F).  The fastener is positioned to connect together two or more components (X) of a workpiece.  A drive unit (12) couples to the fastener to thread it into place.  The fastener exerts a clamping force on the components to connect them together.  The clamping force created by the fastener produces an equal and opposite tensile force on the fastener.          A controller (16) starts and stops operation of the drive unit.  The controller controls the drive unit to thread the fastener into place until it exerts a predetermined amount of clamping force on the components.  A test unit (18) generates ultrasonic waves and transmits them lengthwise through the fastener.  The transit time of the waves through the fastener is then measured.  The transit time of the waves is a function of the tensile force on the fastener and, in turn, a function of the clamping force exerted by the fastener.
Patent CA-2081853-C (CA)
Title: Preparation of alkanolamines and use of the reaction product as a motor fuel or lubricant additive
Inventor: HOELDERICH WOLFGANG
IPC: C10L1/2387
Filed: 1992-10-30
Granted: 1998-01-20
Abstract: Alkanolamines prepared from epoxides and amines using solid catalysts are useful as motor fuel and lubricant additives.
Patent CA-2083725-C (CA)
Inventor: CALDERBANK ARTHUR ROBERT
IPC: H04N21/2383
Filed: 1992-11-25
Granted: 2000-02-22
Abstract: In a time-division-multiplexing communications system, which transmits information from various sources in different time-slots, additional information is transmitted by varying the pattern of time slot assignments in accordance with a set of rules. As a result, the assignment pattern by which time slots are assigned to each of the various sources of information, conveys additional information. Specifically, a High Definition Television (HDTV) transmission system is constructed in which picture information is transmitted by time-division-multiplexing between two different, and disjoint, signal point constellations. Additional information is conveyed by the rule for switching between the different signal point constellations.
Patent CA-2088058-C (CA)
Title: Miniaturized switching power supply having unidirectional spike filter
Inventor: KAYSER KENNETH W
IPC: H03K17/16
Filed: 1991-07-12
Granted: 2000-11-07
Abstract: A high frequency miniaturized switching power supply has a unidirectional spike filter (17) which removed spikes appearing on a feedback signal (53) before such feedback signal (53) is provided to a comparator (14) of the switching power supply. The spike filter (17) removes voltage spikes of one polarity without lengthening the reset time of the comparator (14) in response to a wavefront of the opposite polarity.
Patent CA-2091196-C (CA)
Title: Bag labelling machine
Inventor: RAUTENBERG HORST
IPC: B65C9/40
Filed: 1993-03-08
Granted: 2000-07-18
Abstract: The invention concerns an apparatus in a bag labelling machine for the attachment of strip sections such as labels to a passing bag surface, comprising an application cylinder with a gripper which can be actuated to open and close, and with a blade interacting with this gripper. according to the invention, in this bag machine the blade is arranged on a diversion cylinder running parallel to and cooperating with the application cylinder. The diversion cylinder also includes a gripper which interacts with a blade arranged on the application cylinder for removing unused strips or labels on the occasions when a bag is not simultaneously provided. Reliably removing these excess strips or labels helps to prevent jamming or malfunctioning in the machine.
Patent CA-2093519-C (CA)
Inventor: WATERLAND ALFRED F
IPC: F28F3/10
Filed: 1991-11-19
Granted: 2001-07-03
Abstract: A shielded gasket assembly is provided for use in corrosive environments having a synthetic rubber gasket as a core (6) and a shielding material of expanded high density polytetrafluoroethylene (5) with an adhesive on at least one surface of the shielding material at least partially enveloping the surface of the core gasket.
Patent CA-2100476-C (CA)
Title: Hdtv receiver
Inventor: KNAUER SCOTT CARROLL
IPC: H04N19/89
Filed: 1993-07-14
Granted: 1998-09-01
Abstract: The effects of perturbations in a decoder responsive to a signal encoded in a predictive coding schema are reduced by shortening the time needed to converge the decoder's prediction signal to that of the encoder. This is accomplished by temporarily altering the leak factor when it is known that a perturbation is about to manifest itself and by, in some situations, altering the incoming encoded signalitself.
Patent CA-2104233-C (CA)
Inventor: MAGNABOSCO LOUIS M
IPC: C01F7/162
Filed: 1992-02-21
Granted: 1997-09-30
Abstract: Des spinelles peuvent être synthétisées en dispersant uniformément des quantités prédéterminées de composés ingrédients sous forme de particules dont la taille n'excède pas environ 5 nanomètres dans un milieu liquide, en immobilisant les composés ingrédients dans une matrice solide par séchage par pulvérisation dudit milieu liquide et en procédant à la calcination des particules ainsi obtenues pour former une solution solide d'oxydes desdits composés dans un réseau cristallin qui est substantiellement exempt de complexes non voulus formés avec les composés ingrédients.
Patent CA-2104581-C (CA)
Inventor: COLTMAN JOSEPH W
IPC: B64D17/48
Filed: 1993-01-05
Granted: 1999-11-16
Abstract: An environmentally-sealed parachute deployment system for bail-out parachutes comprising a spring-loaded pilot parachute (36), an environmentally sealed vacuum bag (22), a deployment bag (21) having one or two elastic closure loops (65), and a man-rated parachute. The drag force exerted by the pilot parachute tears open the environmentally sealed bag (22), initiating deployment of the parachute.
Patent CA-2105300-C (CA)
Title: Process for the development of binding mini-proteins
Inventor: LADNER ROBERT C
IPC: C12N15/62
Filed: 1992-02-27
Granted: 2008-12-23
Abstract: Genes encoding disulfide-bonded micro-proteins and metal ion-coordinated mini-proteins are semi-randomly mutagenized and expressed in suitable cells so as to result in the simultaneous display of the different mutant proteins on the surfaces of bacterial cells, spores or phage; the resulting display library is screened for members having the ability to bind to a target of interest.
Patent CA-2106701-C (CA)
Title: Polyurethane coating composition derived from long-chain aliphatic polyol
Inventor: SERDIUK PAUL
IPC: C09D175/04
Filed: 1993-09-22
Granted: 2000-10-24
Abstract: A coating composition is disclosed comprising: (a) an aqueous medium, (b) a water-dispersible polyurethane resin that is the reaction product of a mixture comprising: (1) a long-chain aliphatic polyol having greater than 18 to 60 carbon atoms, (2) a multifunctional compound having at least one active hydrogen group and at least one raster-stabilizing group, (3) an active hydrogen-containing capping and/or chain extending agent, and (4) a polyisocyanate, and (c) an aminoplast crosslinking agent.