baber/WOPTO huggingface dataset:
Patent CA-2052467-C (CA)
Title: Spectrophotometer having means for simultaneous modulation, switching and wavelength selection of a light source
Inventor: LOWNE ALAN JOHN
IPC: G01N21/31
Filed: 1991-09-30
Granted: 1995-09-19
Abstract: A spectrophotometer is described, comprising a single light source, a single detector, optics for dually and alternatively reading a sample and a reference, and only one moving part.  That moving part is a chopper containing multiple pass-through apertures, each filled with a unique bandpass filter to select wavelengths to specifically illuminate the sample or reference. To inform the spectrophotometer whether and when it is reading the sample or the reference, trigger means are provided in at least twice the number of the pass-through apertures.
Patent CA-2054459-C (CA)
Title: Apparatus for increasing the number of registers available in a computer processor
Inventor: KELLY EDMUND
IPC: G06F5/00
Filed: 1991-10-29
Granted: 1998-04-28
Abstract: A floating point processor including a first plurality of registers, each of the registers of the first plurality of registers containing a number of bit positions at least sufficient to store one single precision number, the registers of the first plurality of registers being addressable in storing single precision numbers by sequentially numbered addresses and being addressable in storing double precision numbers by alternate ones of the sequential numbers used in storing single precision numbers; and a second plurality of registers, each of the registers of the second plurality of registers containing a number of bit positions at least sufficient to store one single precision number, the registers of the second plurality of registers being addressable in pairs in storing double precision numbers by those alternate ones of the sequential numbers used in storing single precision numbers omitted in addressing the registers of the first plurality of registers.
Patent CA-2056254-C (CA)
Title: Bi-directional buffer line amplifier
Inventor: WARNER MICHAEL
IPC: H04M3/40
Filed: 1991-11-26
Granted: 1998-09-15
Abstract: An improved bi-directional buffer line amplifier is disclosed that provides a high performance analog interface between a Digital Network Interface Circuit (DNIC) and a transmission line.  The buffer line amplifier includes a transmit amplifier network including an input connected to a DNIC transmit signal output.  The input is arranged to receive transmit signals from the DNIC.  A transmit output is connected to a matching network via a selectable gain amplifying circuit.  The selectable gain amplifying circuit applies the transmit signals to the matching network in a first or a second gain level.  In the first gain level the gain amplifying circuit is removed from the transmit amplifier network and the transmit amplifier network operates as a unity gain amplifier. This allows the buffer line amplifier to work efficiently with transmission line loop lengths from zero to a nominal distance.  In the second gain level the gain amplifying circuit is connected in series between the transmit amplifier network and the matching network, thereby, significantly amplifying the transmit signals.  This allows the buffer line amplifier to work efficiently with transmission line loop lengths of a substantially greater distance than the nominal distance.  A receive amplifier network is also included that cancels the transmit signals from receive signals.  This provides the necessary phase error cancellation required by the DNIC for the error free reception of the receive signals.
Patent CA-2059216-C (CA)
Title: Paper coating resin and paper coating composition
Inventor: KAWANO HIROHARU
IPC: D21H17/00
Filed: 1992-01-13
Granted: 1999-01-12
Abstract: A paper coating resin has been provided which simultaneousy provides coated papers with improved ink receptivity, water resistance and blister resistance in a good balance.  The resin is obtainable by  introducing alicyclic amino and/or alicyclic epoxy compounds into a polyalkyl-enepolyamine-urea-aldehyde(epihalohydrin) resin or by introducing alicyclic amino and/or alicyclic epoxy compounds into a  polyalkylenepolyamine-urea-aldehyde(epihalohydrin) resin and/or an amine-epihalohydrin resin and reacting or mixing these resins.
Patent CA-2059861-C (CA)
Title: Terminal structure for an optical device
Inventor: KURATA KAZUHIKO
IPC: G02B6/24
Filed: 1992-01-22
Granted: 1998-05-05
Abstract: An optical terminal structure includes a single mode optical fiber having a short length, and a cylindrical member in which the single mode optical fiber is fixed. The cylindrical member is coaxial with the core of the single mode optical fiber. The cylindrical member has at each end a facet that is polished to a mirror finish. The core and a clad of the single mode optical fiber have refractive indexes such that the normalized frequency in the operation of the single mode optical fiber becomes at most 2.405 as a value converted at a wavelength in use of 1.28 µm. The wavelength in use is preferably in the range of 1.29 to 1.33 µm.
Patent CA-2060169-C (CA)
Title: Temporary transmission/engine support system
Inventor: GIBBS MYRON F
IPC: B60K17/00
Filed: 1992-01-28
Granted: 2001-03-27
Abstract: A vehicle power train support apparatus is provided for temporarily supporting from a vehicle frame a portion of a vehicle power train. The apparatus includes a telescoping transverse support arm assembly suspended by two eye bolts, arid optionally by two chains or straps, from a vehicle frame. A support table is adjustably mounted to the transverse support arm assembly at varying vertical increments. A spring-biased sliding lock plate or latch secures the table at a desired vertical position.      The table supports the portion of the vehicle power train.
Patent CA-2064261-C (CA)
Title: Antenna connector
Inventor: SAKURAI KAORU
IPC: H01R9/053
Filed: 1992-03-27
Granted: 2000-10-24
Abstract: An antenna connector comprises a first housing for housing an end of a coaxial cable, first and second contact to be connected to a core wire and a shield wire, respectively, of the coaxial cable housed in the first housing, a second housing for housing the first housing, and a pair of conductive feeding metal plates. The feeding metal plates are arranged on and secured to a conductive antenna pattern formed on an insulative substrate and each of them has a first holder for receiving and holding the second housing and a second holder for receiving and holding the first and second contacts. When the first housing is housed in the second housing, the first and second contacts are engaged with and held by the second holder to plugably connect the coaxial cable to the antenna without disturbing an impedance matching and with a sufficient mechanical strength.
Patent CA-2070414-C (CA)
Title: Detergent compositions
Inventor: SCHEPERS FREDERIK J
IPC: C11D17/00
Filed: 1990-10-23
Granted: 2001-03-06
Abstract: A liquid detergent composition comprising a dispersion of lamellar droplets in an aqueous continuous phase and a polymer consisting of nonionic monomers and ionic monomers wherein the ionic groups constitute from 0.1 to 20 % by weight of the polymer, and wherein the equivalent composition, minus the polymer has a significantly higher viscosity and/or becomes unstable.
Patent CA-2076084-C (CA)
Title: Adaptive mlse-va receiver for digital cellular radio
Inventor: CHENNAKESHU SANDEEP
IPC: H04B7/26
Filed: 1992-08-13
Granted: 1999-10-12
Abstract: A TDMA RF received signal is demodulated by first being filtered with a fixed transversal filter having a characteristic selected for matching a fixed square root raised cosine pulse characteristic of the received signal.   The filtered signal is then adaptively filtered for compensating for a time varying impulse response of the channel. The adaptive filtering is performed initially during a synchronizing portion (preamble) of the filtered signal in accordance with a fast recursive least squares algorithm.      Subsequent filter adaptation to a data portion of the filtered signal is accomplished in accordance with a computationally less expensive normalized least mean square procedure. The adaptive filter repetitively applies a modified Viterbi algorithm to blocks of 2D symbols, such that D symbols are released for adapting the adaptive filter means during the data portion of the filtered signal and the signal. The released symbols are also employed for adapting elements required in computing a metric for the modified Viterbi algorithm and the reconstructed signal used to form an error signal that drives the adaptation algorithms.
Patent CA-2081690-C (CA)
Title: Self-attaching fastening element and method of attachment
Inventor: LADOUCEUR HAROLD A
IPC: F16B13/00
Filed: 1992-10-29
Granted: 2003-12-30
Abstract: A self-attaching fastening element, such as a nut fastener, having a body portion and an integral annular riveting barrel portion.      The body portion includes axial grooves and, in the preferred embodiment of the nut-type fastener, the body portion includes a radial flange and the grooves extend radially from the body portion into the flange portion. In the most preferred embodiment, the body portion is polygonal and the axial grooves are located in the juncture of adjacent flat surfaces. The method of attaching the self-attaching fastening element of this invention to a panel includes forming an opening in the panel coaxially aligned with the barrel portion having a diameter less than the barrel portion, driving the barrel portion into the panel, thereby drawing a cone-shaped portion in the panel receiving the body portion, driving the body portion into the cone-shaped panel portion, deforming the panel portion into the body portion and the axial grooves. The free end of the barrel portion may be simultaneously deformed radially to form a mechanical interlock with the panel. Where the body portion includes a radial flange, the flange is driven into the panel and the panel is driven into the radial grooves, preventing relative rotation of the fastening element in the panel.
Patent CA-2097691-C (CA)
Inventor: LOMP MARTIN G
IPC: H04M11/06
Filed: 1991-12-17
Granted: 2000-08-01
Abstract: Communication apparatus is operative to switch communication dynamically between itself and a selected one of a predetermined plurality of mating communication devices of different configurations.      A memory is provided for storing a plurality of different sets of configurables with each set of the plurality corresponding to a communication configuration associated with a corresponding mating communication device of the predetermined plurality. Each set of configurables being indexed in the storing means by a unique memory address. A controller is also provided and is responsive to a command signal to select an index memory address for use by the communication apparatus to functionally configure itself in accordance with the set of configurables of the memory storage corresponding to the index memory address selected by the command signal. An entry device may be coupled to the controller for entering the index memory addresses of at least two sets of configurables into a portion of memory. Accordingly, the controller in response to the command signal may select an index memory address from that portion of memory for use by the apparatus to access and use the set of configurables of the memory corresponding thereto.
Patent CA-2102537-C (CA)
Title: Outil de simulation d'un code de reseau
Inventor: BONNET PASCAL
IPC: G06F15/16
Filed: 1993-11-05
Granted: 1999-12-28
Abstract: Outil de simulation (ES) d'un code de réseau (RE) caractérisé en ce que le code est porté dans un ordinateur (ORD) extérieur au système, l'outil constituant une application pour le système d'exploitation de ce dernier (NY) en étant considéré comme un noyau virtuel (CC) et comprenant au moins : - le code de couches de communication non modifié et compilé dans le langage interne de l'ordinateur (CC), - les services de base pour le noyau virtuel reliés au dit code (CONFIG, RA, SI, GH) - un nombre m de librairies (L1 à Lm) d'accès au code (CC) pour un nombre n d'applications de tests (A1 à An) de ce dernier.      Applicable à la mise au point de codes de réseau.
Patent CA-2107153-C (CA)
Title: Methode d'acquisition et de traitement de donnees sismiques enregistrees sur des recepteurs disposes verticalement dans le sous-sol en vue de suivre le deplacement des fluides dans un reservoir
Inventor: MOUGENOT DENIS
IPC: C07D501/00
Filed: 1993-09-28
Granted: 2005-01-25
Abstract: Méthode d'acquisition et de traitement de données sismiques, utilisée dans le cadre d'une surveillance répétitive du déplacement des fluides imprégnant un réservoir (1) situé en profondeur dans le sous-sol. Selon l'invention, elle comporte les étapes consistant à aménager en chaque point d'une grille prédéterminée en surface, un trou (100) vertical et de faible profondeur dans le sous-sol au-dessus du réservoir et traversan t la zone d'altération superficielle (2) ; positionner verticalement dans chaque trou des récepteurs (101,102,103,104,105,106,107,108) fixes, destinés à être connectés séparément à un enregistreur (300) placé en surface ; émettre à proximité de la verticale de chaque trou des ondes sismiques dans le sous-sol au moyen d'une source (200) placée en surface ; enregistrer pour chaque trou, au moyen des récepteurs, les ondes sismiques incidentes directes (10) et les ondes sismiques réfléchies (20) aux interfaces des couches profondes, chaque récepteur fournissant un enregistrement séparé d'une onde incidente et de plusieurs ondes réfléchies ; déconvoluer récepteur par récepteur les ondes réféchies par l'ondes incidente directe afin d'obtenir pour chaque récepteur une trace 0-phase ; additionner les traces 0-phase provenant des récepteurs pour obtenir une trace 0-phase à déport nul defaible couverture. Application dans le domaine de la géophysique appliquée.
Patent CA-2116658-C (CA)
Title: Surfactants used as contact lens processing aids
Inventor: DRUSKIS ROBERT J
IPC: B29C33/62
Filed: 1992-09-01
Granted: 1997-01-21
Abstract: An improved method for manufacturing hydrophilic polymeric devices wherein surfactants are added to the hydration bath to assist in the mold release and processing of hydrophilic polymeric devices, especially hydrophilic contact lenses.
Patent CA-2116721-C (CA)
Inventor: THORMAN CHRISTOPHER SCOTT
IPC: F16H61/42
Filed: 1994-03-01
Granted: 1996-02-13
Abstract: A control structure is provided for the swash plate of a hydraulic transmission pump.  The structure is adapted to return the swash plate to its neutral orientation and thereby prevent creep or slight movement in the vehicle when the transmission is returned to neutral.  The structure takes the form of a tapered hub adapted to be accurately mounted on a tapered swash plate control shaft and configured to be precisely received in a compatably shaped control lever.  The lever, in turn, is actuated by the operator foot pedals and returned to its neutral setting by a V-type neutral cam locator.  The hub is produced through a powder metal process and with its unique configuration for being mounted in a lever recess can be utilized with a variety of lever shapes and configurations to permit its use in a variety of vehicles and hydrostatic transmission models.
Patent CA-2116983-C (CA)
Title: Oily mist resistant electret filter media
Inventor: JONES MARVIN E
IPC: D06M101/16
Filed: 1994-03-04
Granted: 2004-12-14
Abstract: An oily mist resistant electret filter media is provided. The filter media comprises polypropylene electret fibers and a melt processable fluorochemical additive, said additive having a melting point of at least 25°C and a molecular weight of 500 to 2500.
Patent CA-2123493-C (CA)
Inventor: NARUO KAZUTERU
IPC: G01N29/24
Filed: 1991-11-22
Granted: 1999-09-21
Abstract: A reflector/vibrator plate is irradiated with an ultrasonic-generation pulsed laser beam to generate an ultrasonic wave therein, and the thus-generated ultrasonic wave is transmitted into an object to be inspected. The ultrasonic wave transmitted into the inspection object returns to the reflector/vibrator plate by being reflected by a defect such as a flaw present inside the inspection object, if any, thereby causing a vibration in the reflector/vibrator plate. By detecting this vibration with an ultrasonic-detection continuous laser beam, the presence of the defect is detected and located in the inspection object. The ultrasonic flaw-detection apparatus can be applied to a variety of inspection objects, including reflectors having irregularities on the surface or a poor reflectivity, inspection objects having on the surface thereof an opaque liquid which will not allow transmission of the laser beam therethrough, and inspection objects which do not permit generation of ultrasonic waves with a laser beam.
Patent CA-2123608-C (CA)
Inventor: REMMERS JOHN E
IPC: A62B7/00
Filed: 1992-11-13
Granted: 2007-04-03
Abstract: The present invention relates to systems and methods for automatically and continuously regulating the level of nasal pressure to an optimal value during OSA treatment. OSA therapy is implemented by a device which automatically re-evaluates an applied pressure and continually searches for a minimum pressure required to adequately distend a patient's pharyngeal airway. For example, this optimal level varies with body position and stage of sleep throughout the night.      In addition, this level varies depending upon the patient's body weight and whether or not alcohol or sleeping medicine has been ingested.
Patent CA-2124873-C (CA)
Title: Iodine-containing corrosion inhibitor for oil field acidizing operations
Inventor: WILLIAMS DENNIS A
IPC: E21B37/00
Filed: 1994-06-01
Granted: 2001-04-17
Abstract: Elemental iodine is used to improve the performance of conventional corrosional inhibitors in oil field acidizing operations. The iodine, because of its solubility, may be used in a formulation which includes a corrosion inhibitor and surfactants dissolved in a suitable organic solvent.
Patent CA-2130669-C (CA)
Inventor: CARL JAMES A
IPC: H01S5/062
Filed: 1993-02-18
Granted: 2003-08-19
Abstract: A method and apparatus for maintaining a controlled precise energy output level for a laser diode (12), particularly useful in a precision scanning environment, provide for a thermal stabilization current to be added to the normal bias exposure current of the diode (12). The thermal stabilization current is modeled to account for the temperature variation of the laser diode junction which affects the light energy optut as a function of current. The addition of the thermal stabilization current provides a substan-tially flat and constant, precise output energy from the laser diode (12) during its "on" time as a function of an input exposure value.
Patent CA-2135869-C (CA)
Title: Method and apparatus for shot blasting materials
Inventor: LEHANE WILLIAM BRIAN
IPC: B24C5/06
Filed: 1994-11-15
Granted: 2005-09-20
Abstract: A method and apparatus for shot blast cleaning a workpiece. The method comprising the steps of applying a composite stream of a slurry consisting of carrier liquid and particulate abrasive material under high velocity to the workpiece in a blast cabinet, reclaiming spent slurry after undersized abrasive material have been removed, cleaning the carrier liquid for reuse and pumping the cleaned carrier liquid at the workpiece for washing and conditioning the workpiece or pumping the cleaned carrier liquid together with the reclaimed abrasive material as a composite stream at the workpiece. A nozzle which has a divider within it for separating the abrasive material and carrier liquid is used in combination with a slurry discharge head to discharge the abrasive material and carrier liquid in a substantially overlapping blast pattern.
Patent CA-2139757-C (CA)
Title: Liposomes, method of preparing the same and use thereof in the preparation of drugs
Inventor: MAIERHOFER GUNTHER
IPC: A61K31/685
Filed: 1993-06-17
Granted: 2009-04-14
Abstract: The present invention relates to liposomes which can be obtained by mixing bilayer-forming lipids containing, at least in part, unsaturated fatty-acid chains, with an aqueous solution of bile acid and/or at least one derivative thereof and supplying mechanical energy, wherein before mixing, the lipids are present either as such or dissolved in water-miscible solvent. The invention further relates to a method of preparing such liposomes and their use in the preparation of drugs.
Patent CA-2141734-C (CA)
Inventor: RATNANI KEBIR
IPC: B01D53/86
Filed: 1995-01-25
Granted: 2000-06-06
Abstract: The selective catalytic reduction of nitrogen oxides to nitrogen is effected by reacting nitric oxide, nitrogen dioxide or a mixture thereof with a reducing agent consisting of an aliphatic carboxylic acid having 1 to 5 carbon atoms at a temperature ranging from about 250 to about 600 °C, in the presence of a catalyst comprising a metal oxide selected from the group consisting of vanadium oxide, copper oxide, nickel oxide and iron oxide, the catalyst being supported on a porous carrier. The process of the invention enables one to substantially completely reduce NOx to harmless N2 in an efficient, environmentally friendly and cost-effective manner.
Patent CA-2145397-C (CA)
Title: Group b streptococcus type ii and type v polysaccharide-protein conjugate vaccines
Inventor: JENNINGS HAROLD J
IPC: A61K/
Filed: 1993-09-24
Granted: 2007-10-30
Abstract: This invention relates to antigenic conjugate molecules comprising the capsular polysaccharide of Group B streptococcus type II which are covalently linked to protein. This invention further relates to antigenic conjugate molecules comprising the capsular polysaccharide of Group B streptococcus type V which are covalently linked to protein. This invention also relates to vaccines and methods of immunizing mammals, including humans against infection by Group B streptococcus type II (GBS II) and/or Group B streptococcus type V (GBS V). Multivalent vaccines comprising the conjugate molecules of this invention and antigens to other pathogenic bacteria are also claimed.
Patent CA-2147673-C (CA)
Inventor: REGIS HARRY J
IPC: H04M3/36
Filed: 1995-04-24
Granted: 1998-09-01
Abstract: A data acquisition apparatus, for use as a diagnostic tool in isolating the cause of chronic dropped telecommunication calls, monitors electrical signals associated with multiple telecommunication trunks.  It recognizes each occurrence of a terminated call based upon loop current cessation of a duration greater than a predetermined time interval.  Each occurrence of a terminated call, as well as electrical data indicative of which equipment terminated the call, is time-stamped and recorded.  The apparatus also time-stamps and records data regarding additional electrical events based upon pre-determined ranges of current and voltage.  It creates a chronological log of the recorded data. The apparatus interprets the recorded data and provides an easily intelligible message indicating which equipment terminated a particular call. The recorded data and the messages can then be conveniently analyzed by technicians or other personnel on a display screen to determine which equipment dropped a call and to identify significant trends regarding dropped calls.  The apparatus functions in a manner that is transparent to a customer so that it does not interfere with the customer's usage of the equipment being monitored.
Patent CA-2153428-C (CA)
Inventor: FOWLKES JEFFREY C
IPC: H02K15/16
Filed: 1995-07-07
Granted: 1999-10-19
Abstract: A hermetic compressor assembly is disclosed including a motor compressor disposed within a hermetically sealed housing, wherein the housing has an oil sump in the bottom thereof from which oil is drawn to lubricate the compressor mechanism.  An electric drive motor includes a vertical rotor having a lower axial end ring with rotor counterweight die cast therein, whereby turbulence and resulting agitation of the oil in the oil sump is prevented during rotation of the rotor.  By die casting the counterweight within the end ring additional attachment parts and manufacturing steps are eliminated.