baber/WOPTO huggingface dataset:
Patent CA-2025082-C (CA)
Title: Polymetallic catalysts, method of preparing and polymers produced thereby
Inventor: SMITH CRYSTAL A
IPC: C08F4/68
Filed: 1990-09-11
Granted: 1995-12-19
Abstract: Disclosed is a polymetallic supported catalyst component comprising an activated anhydrous MgCl2 solid support which has been treated with at least one treatment of at least two halogen-containing transition-metal compounds, wherein one is a halogen-containing titanium metal compound and one is a halogen-containing non-titanium transition metal compound, optionally, in the presence of an electron donor and the processes for producing the component.  A catalyst for the polymerization of at least one alpha-olefin of the formula CH2-CHR, where R is H or a C1-12 branched or straight chain alkyl or substituted or unsubstituted cycloalkyl, by reacting this supported catalyst component with an organometallic cocatalyst, optionally in the presence of an electron donor, and the polymerization of at least one alpha-olefin with the catalyst are also disclosed.  The resulting polymers, particularly propylene polymers, have a controllable atactic content, which is expressed herein in terms of its xylene solubility at room temperature (XSRT), wherein the ratio of the I.V. of the XSRT fraction to the I.V. of the bulk polymer is greater than or equal to 0.50.
Patent CA-2026617-C (CA)
Title: Method and apparatus for measuring multiple optical properties of biological specimens
Inventor: KAMENTSKY LOUIS A
IPC: G01N33/53
Filed: 1990-10-01
Granted: 2001-12-18
Abstract: The invention relates to an apparatus and methods for generating multiparameter optical data that characterize a population of cells. The invention includes the steps of scanning the cell population with a beam to produce sets of digital data samples, each sample set of digital data representing multiparameter optical interactions from a specific location within the cell population; storing the digital data, e.g., in a computer memory; locating a cell within the population, e.g., by comparing the digital data to a preselected threshold value; defining a neighborhood around the digital data representing the located cell; estimating a background level for the neighborhood based upon digital data corresponding to locations outside the neighborhood; and correcting each of the samples corresponding to the neighborhood with the estimated neighborhood background level to generate the optical data. The invention further relates to specific methods of background correction and data calibration as well as specific sampling features to enable precise estimates of multiple cellular constituents or other cell properties at high rates of speed.
Patent CA-2033177-C (CA)
Title: Continuous rail section welding process, and mobile welding apparatus used therefor
Inventor: VALDITERRA SERGIO
IPC: E01B29/17
Filed: 1990-05-08
Granted: 2000-09-26
Abstract: A process for the continuous welding of railway track sections (3) during installation, in which a set of wagons, especially equipped for the purpose (5-5'), and made up of one or more wagons (5, 5') with an extra-low load plane, is introduced into the line of operation, between the wagons (1) carrying the new track sections (3) and the new cross beams (2) and the operating machine installing said beams and sections. The operations aligning, levelling and butting successive track sections (3) take place on said set of wagons (5-5'), as does the welding of said sections, which involves the movement of welding machines (15-17) on a trolley (8) along the set of wagons (5-5'). The welding operations are carried out during a run of the trolley (8) along with the welding machines (15-17) in the opposite direction to that of the advancing line of operation. This welding run is then compensated by a return run of the trolley (8) and welding machines (15-17) in the same direction as the line of operation. In this way, all the welding takes place on the operation line itself, installation being carried out by the corresponding operating machine on tracks which are now continuous.
Patent CA-2034017-C (CA)
Title: Scanning device for optically scanning a surface along a line
Inventor: VAN AMSTEL WILLEM D
IPC: G06K7/10
Filed: 1991-01-11
Granted: 2001-08-21
Abstract: An optical scanning device comprises an optical system for imaging a part of the surface (10) to be scanned on the detection system (22-25; 122-125). The optical system comprises an objective system (43) and two cylindrical lenses (41, 42) and/or two systems of cylindrical mirrors (141a, 141b, 142a, 142b). In the direction in which the cylindrical lenses (41, 42) have their optical power, the objective system (43) functions as an imaging lens so that a light-intensive and spatial image of the surface is formed at the detection system (22-25).      Due to the achieved large numerical aperture, the image formed can also be observed three-dimensionally so that information about the profile of the surface can be obtained by means of the scanning device.
Patent CA-2034915-C (CA)
Inventor: GRASSO GIORGIO
IPC: H04B10/29
Filed: 1991-01-24
Granted: 1999-01-19
Abstract: An optical fiber transmission line which includes units for injecting into, and units for extracting, optical service signals from the line's optical fiber.  The units include optical service signal emitters and receivers for receiving from the optical line and/or injecting into the optical line service signals in the form of optical signals having a wavelength which is substantially different from the wavelength of the telecommunication signals also transmitted over the optical line, each of the units is associated with an optical coupler which is inserted in the line and which is suitable for coupling it with the line fiber and/or for extracting the optical service signals from the line fiber.
Patent CA-2040827-C (CA)
Title: Heat exchanger for a pulp drier
Inventor: SATHER STANLEY H
IPC: F28F19/00
Filed: 1991-04-19
Granted: 1995-07-11
Abstract: A steam heat exchanger for a wood pulp dryer. The heat exchanger has a plurality of tubes extending between the ends of the heat exchanger in parallel,spaced-apart relationship to each other. A plurality of fins is connected to the tubes. There is an outlet header near the bottom of the heat exchanger, the outlet ends of the tubes being connected to the outlet header. There is a steam inlet header near the top of the heat exchanger. The inlet header has an inner conduit with a plurality ofopenings spaced-apart therein for discharging steam from the inner conduit. There is an outer conduit extending about the inner conduit. The inlet ends of the tubes are connected to the outer conduit.
Patent CA-2050846-C (CA)
Title: Hybrid matrix amplifier systems, and methods for making thermally-balanced hybrid matrix amplifier systems
Inventor: HEINZELMANN CHRISTINE
IPC: H03F3/68
Filed: 1991-09-06
Granted: 1994-11-08
Abstract: A hybrid matrix amplifier system that yields balanced thermal loads with minimal input signal constraints includes an input multiport hybrid coupler system having outputs joined to a plurality of amplifiers, and an output multiport hybrid coupler system joined to the outputs of the amplifiers. The input multiport hybrid coupler system, and the output multiport hybrid coupler system, each include n stages where n is an integer equal to or greater than 1, with each stage including 2n-1 couplers. These coupler systems may also include strategically-placed phase shifters. Such systems also include N amplifiers where N is equal to 2n, with N inputs from the outputs of the input multiport hybrid coupler system, and with the outputs of the amplifiers connected as inputs to the output multiport hybrid coupler system. This configuration permits a division of the N amplifiers into two groups that each dissipates substantially the same quantity of heat energy.
Patent CA-2051146-C (CA)
Title: Integrated services digital network (isdn) terminal having diagnostic function
Inventor: YAMADA MASAYUKI
IPC: H04L69/40
Filed: 1991-09-11
Granted: 1996-08-20
Abstract: An  Integrated  Services  Digital  Network  (ISDN) adapter having a diagnostic function includes a terminal adapter section,  an S/T pointer interface section,  a D channel control section, a sub-address identifying section, and a remote monitor section.  The terminal adapter section has a data rate converting function for communication with an office terminal of a distant station connected to an ISDN.   The S/T point interface section converts an output signal from the terminal adapter section into a protocol of the ISDN.  The D channel control section receives D channel information from the distant station through the S/T point interface section and extracts a sub-address from the D channel information.   The sub-address identifying section determines  whether  the  sub-address  of  the  D  channel information  input  from  the  D  channel control  section coincides with a predetermined code.   The remote monitor section for sets a remote monitor state in response to a control   signal   generated   in   accordance   with   the determination  result  from  the  sub-address  identifying section.
Patent CA-2053729-C (CA)
Title: Apparatus and method for controlling cells input to atm network
Inventor: TACHIBANA TETSUO
IPC: H04L47/20
Filed: 1991-10-18
Granted: 1998-11-17
Abstract: An apparatus for controlling cells which are to be input to an ATM switch includes a buffer circuit for storing a cell directed to the ATM switch, and a memory for storing, for each of different calls, the number of cells which are in the ATM switch.  The apparatus includes a periodic calculation circuit for periodically changing the number of cells for each of the different calls by an operation value, and a control part for determining whether the cell stored in the buffer circuit should be output to the ATM switch or discarded by referring to the number of cells which is stored in the memory and related to the cell stored in the buffer circuit.
Patent CA-2054960-C (CA)
Title: Forward control tube with sequenced ignition
Inventor: WARREN JOHN B
IPC: F42B5/045
Filed: 1991-11-05
Granted: 1999-08-31
Abstract: A cased telescoped ammunition with a perforated forward control tube in which the main propellant gas and flame front ignites a propellant surrounding the tube through the perforations. Seals form annular segments of consolidated propellant surrounding the tube separated from each other and the main propellant charge. these seals prevent gas and flame front propagation from the main or rearmost charge of propellant, except through the control tube perforations or ports which have beers passed by the obturator.
Patent CA-2055019-C (CA)
Title: Pyrazole-containing pigment derivatives
Inventor: CAMPBELL COLIN D
IPC: C09B1/00
Filed: 1991-11-06
Granted: 2003-01-14
Abstract: Pyrazole derivatives of a variety of polycyclic pigments, particularly quinacridone pigments, corresponding to the general formula (see Formula I) wherein Q is the primary pigment structure can be used as additives to pigment systems to provide a broad range of performance benefits to the resulting pigment compositions.
Patent CA-2055246-C (CA)
Title: Coupe metal
Inventor: LEVESQUE CLAUDE
IPC: B23D45/04
Filed: 1991-07-05
Granted: 1995-12-05
Abstract: L'invention décrit une scie ronde coupe métal. Comprend une base supportée par quatre pattes au centre de la base un trou est perforé dans lequel un cylindre est descendu et soudé. Sur le dessus avant de la base est boulonnée une table sur laquelle sont inscrits les degrés angles. Au centre de la base est posée une table tournante à laquelle est soudé un arbre qui est supporté par des coussinets fixés à chaque bout du cylindre de la base. L'assemblage est ajusté et maintenu à l'aide d'un écrou visé sur l'arbre de la table tournante. Au bout de l'arbre est boulonné un secteur d'engrenage jumelé à une vis sans fin qui est accouplée à un moteur électrique qui fait tourner la table à angle désire. A la table tournante est soudé un récupérateur de brin de sciure. Sur le récupérateur de brin de sciure est fixée avec une penture une table qui supporte un moteur de 5 c.v. qui fait tourner l'arbre de la scie qui est supporté par des coussinets fixés à la table basculante. Une poignée permet de descendre la scie sur la pièce à couper qui est sécurisée dans la serre de retenue. La serre de retenue est fabriquée de trois pièces, une pièce fixe boulonnée sur la base, une deuxième pièce coulissante qui sécurise la pièce à couper, la troisième pièce une tige boulon est inséré dans la pièce coulissante pour enlever le jeu entre la pièce et la serre. Un ressort maintient la scie en position élevée.
Patent CA-2057654-C (CA)
Title: Method and apparatus for screening peat moss material
Inventor: LEMAY MARTIN
IPC: B07B1/55
Filed: 1991-12-13
Granted: 1996-09-03
Abstract: Method and apparatus for screening peat moss material. The method comprises the steps of forming an aqueous slurry of peat moss material and flowing the slurry on a screen to separate fines from coarser particles in the slurry.  A spray of relatively large water drops is directed at the slurry to agitate the coarser particles blocked by the screen in order to dislodge fines adhering thereto, whereby the fines freed from the coarser particles are allowed to egress the slurry through the screen. The water spray also has the effect of clearing the screen of fines which clog the screen openings.  The invention also comprehends a method and apparatus for screening peat moss material, comprising the steps of flowing an aqueous slurry of peat moss material on a sieve to extract from the slurry excessively large particles, and washing the rejects remaining on the sieve to    dislodge   therefrom    smaller   particles of acceptable size which are returned  to the slurry.
Patent CA-2058165-C (CA)
Inventor: PARKER JEFFERY R
IPC: C09J161/24
Filed: 1991-12-29
Granted: 2001-03-13
Abstract: The invention comprises a method for joining pieces of unseasoned or dried wood, by finger jointing or other joining technique. The wood may have a moisture content above the fibre saturation point of the wood, and as high as 50% or 100% or higher moisture content. A formaldehyde based adhesive is used. Ammonia or an amine or amine derivative compound or chromic acid or sodium periodate is applied to the joint. The adhesive may be applied to one side of the joint and the ammonia or amine compound or similar to the other side.
Patent CA-2059411-C (CA)
Title: Circuit for suppressing white noise in received voice
Inventor: EHARA TATSUJI
IPC: H04M1/60
Filed: 1992-01-17
Granted: 1996-03-26
Abstract: A white noise suppressing circuit for suppressing white noise contained in a received voice of a speaker telephone apparatus includes a filter for suppressing white noise contained in an aural input signal input to an aural signal line, a switch for short-circuiting the filter, a detecting circuit for detecting the aural input signal, and a comparator for comparing an output of the detecting circuit with a preset voltage and for controlling the switch on the basis of the results of the comparison.  When it is determined by the comparator that there is a voice input, the switch is short-circuited to make the filter inoperable.  When there is no voice input, the switch is opened so as to make the filter operate.
Patent CA-2063878-C (CA)
Inventor: LOBAN JERRY M
IPC: H04N5/74
Filed: 1992-03-24
Granted: 1997-12-02
Abstract: A  multi-facetted  dome  imaging  system  (10) utilizes rear projection imaging techniques to present a moving or still image to each screen facet (12).   The trapezoidal facets  (12)  are arranged with a series of lower facets (16), upper facets (18), and a top facet (20) generally forming a dome (11).   Each facet (12) has a projector (30) disposed at its rear to project the image. Visibility of facet joints is minimized by joining the facets (12) by a pair of transparent stiffeners (42, 44) which hold the mating portions of the screen facets (12). The stiffeners (42,  44)  are suspended by springs  (48), which are held by a support structure (50).
Patent CA-2071811-C (CA)
Title: Improved meningococcal polysaccharide conjugate vaccine
Inventor: JENNINGS HAROLD J
IPC: A61K39/02
Filed: 1990-12-13
Granted: 2003-11-04
Abstract: Neisseria meningitidis group B polysaccharide (GBMP) modified by having sialic acid residue N-acetyl groups replaced by N-aryl groups exhibits enhanced immuno response thereto. In addition, induction of antibodies which cross-react with un-modified group B meningococcal and E. coli K1 capsular polysaccharide and other tissue cells having a common epitope is mini-mized. Conjugation of the modified polysaccharides with a physiologically acceptable protein such as tetanus toxoid induces the production of specific protective antibodies with negligible levels of GBMP-cross reactive antibodies, to thereby afford protection against infections caused by group B meningococci and E. coli K1.
Patent CA-2074986-C (CA)
Title: Shoulder adjuster apparatus and assembling method of the same
Inventor: SUGIMOTO MUTSUMI
IPC: B60R22/20
Filed: 1992-07-30
Granted: 1996-01-30
Abstract: A  shoulder  adjuster  apparatus  to  be  attached  to  an attaching portion of  a vehicle body comprises  an adjuster rail  assembly  to  be  attached  to  and  along  the  attaching portion of the vehicle body, a slide garnish for covering a front surface side of the adjuster rail assembly,  a slide assembly  accommodated  slidably  in  a  guide  route  formed within the adjuster rail assembly, a latch unit for causing the   slide   assembly   to   be   detachably   latched   at   a predetermined  position  of  the  adjuster  rail  assembly,  an operation  mechanism  for  releasing  the  latch  unit  from  a latched state,  and a webbing anchor unit fixed on the slide assembly for supporting a webbing.  The slide assembly,  the latch means,  the operation mechanism and the webbing anchor unit are assembled on a side of the slide garnish to form an  integrated  slide  adjuster  assembled  body.   In  the assembling of the apparatus,  the latch unit is mounted into a latch hole of the slide garnish,  the operation mechanism is attached to a face side of the slide garnish,  a slide anchor  base  bady  is  set  to  a back  surface  of  the  slide garnish,  a anchor nut is  assembled with the  slide  anchor base body,  the slide anchor cover body is overlapped with the anchor nut to engage the slide anchor cover body at an assembly mounting portion on the back surface side of the slide  garnish,  the  slide  assembly  is  inserted  into  the guide  route  of  the  adjuster  rail  assembly  form  one  side thereof  to  assemble  the  slide  assembly with  the  adjuster rail  assembly as a slide adjuster assembled body,  and the adjuster  slide  adjuster  assembled  body  is  mounted  to  the attaching portion of the vehicle body.
Patent CA-2076302-C (CA)
Title: Gasoline engine fuels of enhanced properties
Inventor: LEEPER THOMAS ALBERT
IPC: C10L1/30
Filed: 1992-08-18
Granted: 2003-05-27
Abstract: Methods and compositions for reducing toxic compounds emissions and the maximum reactivity of exhaust products emitted by spark-ignition internal combustion engines. Gasoline having a minimum target octane number is formed by blending together base fuel blending components and at least one cyclopentadienyl manga-nese tricarbonyl compound in an amount equivalent to up to about 0.03 gram of manganese per gallon. The manganese compound is used in lieu of an amount of one or more aromatic gasoline hydro-carbons required to achieve the same target octane number so that there is a more than proportionate decrease in toxic aromatic compounds in the tailpipe exhaust and the maximum reactivity of the tailpipe exhaust products produced by the manganese-con-taining gasoline is less than the maximum reactivity of the tailpipe exhaust products produced by the same base fuel blending components not containing any such manganese compound but containing in lieu thereof an amount of one or more aromatic gasoline hydrocarbons required to achieve the same target octane number. There is thus provided a way of providing and using gasolines of suitable octane values while concomitantly reducing toxic compound emissions and the potential for ground ozone formation, smog formation, and other grievous consequences of atmospheric pollution.
Patent CA-2088346-C (CA)
Title: Process for preparing metal cyanide complex catalyst
Inventor: HINNEY HARRY R
IPC: C08G59/68
Filed: 1993-01-28
Granted: 2003-04-01
Abstract: Highly active double metal cyanide complex catalysts suitable for use in ring-opening polymerization reactions may be prepared in filterable form by controlling the order of reagent addition, the temperature of the reaction medium, and the stoichiometric ratio of the reactants.
Patent CA-2092424-C (CA)
Title: Method and means for generating synthetic spectra allowing quantitative measurement in near infrared measuring instruments
Inventor: ROSENTHAL ROBERT D
IPC: G01N21/25
Filed: 1991-09-11
Granted: 1995-08-22
Abstract: A method and means for generating synthetic spectra allowing quantitative measurement utilizes dual chip (12, 14) alternatively energized IREDs with optical bandpass filter(s) (22,24)  passing two optical bands which could be combined with curvilinear interpolation to be utilized in a low cost small size quantitative measuring instrument.
Patent CA-2095370-C (CA)
Title: Apparatus for collecting blood sample
Inventor: BROWN BRADLEY V
IPC: A61J1/05
Filed: 1993-05-03
Granted: 1997-06-17
Abstract: A blood sample collection apparatus includes a removable plug adapted to fit within the open end of a blood collection tube.  A vacuum tube extends through the plug for evacuating air from the collection tube.  A pickup tube protrudes outwardly from the plug for supplying blood to a drop tube extending downwardly from the plug with its lower end positioned within the collection tube substantially below the lower end of the vacuum tube.  A primary filter is sealed against the underside of the plug to filter the air drawn through the vacuum tube by a portable hand-held vacuum source.  The primary filter is a hydrophobic microporous membrane operative to allow airflow therethrough but to block liquid flow therethrough.  A secondary filter is operatively interposed between the vacuum tube and the vacuum source  for  increased  safety.          Installation of the secondary filter bypasses a bleeder port which renders the apparatus inoperative in the absence of the secondary filter.
Patent CA-2096737-C (CA)
Inventor: NARA SEIKOU
IPC: B22D11/115
Filed: 1992-09-25
Granted: 2004-01-27
Abstract: A process for continuously casting steel slabs employing a molten steel containing an oxygen concentration of 30ppm or less, preferably, 20ppm or less, using a straight immersion nozzle to which an inert gas is not injected, and disposing a static magnetic field generator on the back surface of the mold for applying the strong static magnetic field to the molten steel within the mold, thereby restricting the flow of the molten steel. With this process, it is possible to prevent the nozzle blocking, and hence to obtain the steel slabs excellent in the internal and surface qualities.
Patent CA-2098192-C (CA)
Title: Damped actuator and valve assembly for an electronically-controlled injection
Inventor: AUSMAN THOMAS G
IPC: F02M59/46
Filed: 1991-12-23
Granted: 2004-11-16
Abstract: An actuator and valve assembly for an electronically-controlled injector is disclosed which comprises an electrically-energizable actuator assembly and a device for communicating, collecting and draining damping fluid with respect to at least one cavity of the actuator assembly. If too much damping fluid remains in the actuator assembly after engine shutdown, that damping fluid may cool off and cause slow response of the actuator and valve assembly during cold engine starting. The end result is that quick starting and/or operation of the engine may be hindered, particularly under cold engine conditions. The communicating, collecting and draining means permits at least a portion of the hot damping fluid to automatically drain from the cavity after the engine has been shutdown.