baber/WOPTO huggingface dataset:
Patent NO-174851-C (NO)
Inventor: JANSSENS FRANS EDUARD
IPC: C07D471/04
Filed: 1990-04-06
Abstract: Hydroxylalkylfuranyl derivatives of formula <CHEM>  wherein -A<1>=A<2>-A<3>=A<4>- is -CH=CH-CH=CH-, -N=CH-CH=CH-, -CH=N-CH=CH-, -CH=CH-N=CH-, -CH=CH-CH=N-, -N=CH-N=CH- or -CH=N-CH=N- ;  D is C1-4alkanediyl ;  R<1> is hydrogen, C1-6alkyl, arylC1-6alkyl or C1-6alkylcarbonyl ;  R<2> and R<3> are hydrogen or C1-6alkyl ;  n is 0, 1 or 2 ;  B is NR<4>, O, S, SO2 or CH2;  R<4> is hydrogen, C1-6alkyl, C3-6cycloalkyl or arylC1-6alkyl ; L is hydrogen, C1-12alkyl, C3-6cycloalkyl, C3-6alkenyl optionally substituted with aryl, C1-6alkylcarbonyl, C1-6alkyloxycarbonyl, arylcarbonyl, arylC1-6alkyloxycarbonyl, C1-6alkylsulfonyl, arylsulfonyl, or a radical of formula -Alk-R<5>, -Alk-Y-R<6>, -Alk-Z<1>-C(=X)-Z<2>-R<7>, or -CH2-CHOH-CH2-O-R<8>, the acid addition salts and stereochemically isomeric forms thereof, said compounds having antiallergic activity. Pharmaceutical compositions containing such compounds as an active ingredient; methods of preparing said compounds and pharmaceutical compositions.
Patent NO-178716-C (NO)
Inventor: BURNOUF-RADOSEVICH MIRYANA
IPC: C07K14/755
Filed: 1990-09-05
Abstract: The invention relates to a process for the preparation of a concentrate of factor VIII-von Willebrand factor complex having high specific activity from whole plasma (not cryoprecipitate). The process comprises a prepurification by a double treatment with barium chloride and aluminium hydroxide. The process then comprises a purification by chromatography on an anion exchange resin of the DEAE-Fractogel type. The process comprises a step of viral inactivation by a solvent/detergent treatment. The process also enables fibrinogen, albumin, immunoglobulins, antithrombin III, fibronectin and prothrombin complex to be recovered from the same plasma. The various concentrates obtained by the process of the invention are intended, in particular, for therapeutic use.
Patent NO-180285-C (NO)
Inventor: BOWKETT TREVOR GEORGE
IPC: B29L23/00
Filed: 1991-11-12
Abstract: A method of and apparatus for shaping thermoplastic tube (1) by external formers (5,6,7,8) uses pulsed emission of short wave infra-red radiation (33) to soften the thermoplastic material with the tube (1) held in the required configuration on the formers (5,6,7,8) followed by air cooling (33) to harden the thermoplastic material and retain the required configuration. A jig (3) for supporting the tube (1) in the desired configuration comprises a base table (4) on which the formers (5,6,7,8) are adjustably mounted for altering the desired configuration. <IMAGE>
Patent NO-180626-C (NO)
Inventor: LANG HANS-PETER DIPL-ING
IPC: B61F5/32
Filed: 1994-04-13
Abstract: Wheel set guide of a bogie (1), consisting of the helical spring (6), arranged individually or in pairs on a bearing housing of a wheel set (5), of the primary suspension and a rubber element (7) which is arranged individually or in pairs, the wheel set being guided jointly by the flexicoil effect of the helical springs (6) and the radial rigidity of the rubber element (7). <IMAGE>
Patent AU-778915-C (AU)
Title: Process for the purification of antithrombin-III
Inventor: WINGE STEFAN
IPC: C07K1/18
Filed: 2001-01-18
Granted: 2005-06-23
Abstract: A process for the preparation of a solution comprising substantially pure antithrombin-III (AT-III), or an isoform thereof, said process comprising the use of a cation exchange gel wherein the cation exchanger groups are attached to the gel matrix via a linear polymer chain.
Patent CA-2002780-C (CA)
Inventor: NIELSEN ELGAARD SCHANDORFF
IPC: E04D13/03
Filed: 1989-11-10
Granted: 1999-06-01
Abstract: The upper horizontal main frame member (1) of a roof window is designed as a hollow box-like structure comprising an inner ventilating compartment (12) which through a flow passage (18) provided with an adjustable damper  (19)   communicates with an outer ventilating compartment (13) with air exhausts (20, 21) positioned at both end walls (22, 23) of the box-like structure in the outer side of the roof.       An improved aeration is thereby obtained which is also effective when the window is provided with a rolling louver assembly (15).    An exhaust fan (26) may be accommodated in the inner ventilating compartment  (12)  and the structure may be provided with separate remote-controlled motors for the exhaust fan (26), the rolling louver assembly (15) and the damper (19).       In a large room installation with a number of windows more windows may, for instance by grouping, be operated from a single control unit.
Patent CA-2002967-C (CA)
Title: Metal cutting shear with changeable multiple cutting edge portions
Inventor: RAMUN JOHN R
IPC: B23D35/00
Filed: 1989-11-14
Granted: 1994-10-25
Abstract: An improvement in a shear for a backhoe having a boom with a controlled piston and cylinder assembly connected thereto, said shear having an elongated fixed cutting blade having a raised cutting edge portion and means for attaching said fixed cutting blade to said boom, said fixed cutting blade having horizontally spaced vertically positioned parallel beam portions and horizontal sections therebetween, a movable cutting blade having a plurality of cutting edge portions pivotally mounted between the beam portions of said fixed cutting blade, a slot in said fixed cutting blade forming a guide path for keeping said movable cutting blade and said cutting edge portions in shearing relation to said raised cutting edge portion of said fixed cutting blade;  the improvement comprising said plurality of cutting edge portions of said movable cutting blade being positioned to form a continuous cutting edge and being removably affixed to said movable cutting blade, at least one of said plurality of cutting edge portions including a plurality of sides and at least two sharp cutting edges on at least two of its sides and being mounted on said movable cutting blade to be changeably positioned on said movable cutting blade to be moved from a position having a sharp cutting edge of one side aligned with the sharp cutting edges of the remainder of the cutting edge portions to another position having a sharp cutting edge of another side in alignment with those cutting edges of the remainder of said plurality of cutting edge portions and wherein one of said cutting edge portions is directly adjacent said means pivotally mounting said movable blade.
Patent CA-2003077-C (CA)
Inventor: VANDERWERF DENNIS F
IPC: G02B3/08
Filed: 1989-11-16
Granted: 1997-09-30
Abstract: This invention consists of a Fresnel lens having focusing grooves on both sides of a single element.  The relative frequencies of the grooved surfaces are controlled such that Moire interference patterns between the two grooved surfaces are reduced. Specifically, the frequency of the Fresnel elements on one surface of the is at least four times that of the Fresnel elements on the other surface and not a integral multiple thereof.
Patent CA-2004680-C (CA)
Inventor: BADER MARK S
IPC: F01L13/08
Filed: 1989-12-06
Granted: 1994-11-22
Abstract: ABSTRACT    An internal combustion engine is provided with a mechanism to release engine compression at low speeds thereby facilitating starting of the engine.  The engine has an exhaust valve which is operated by a valve lifter following a cam surface.  A cam pin is positioned within a seat in that cam surface in a manner which allows the pin to rotate.  A drive pin extends orthogonally from the cam pin and passes through an aperture within a flyweight.  The flyweight causes a rotation of the cam pin in response to engine speed.  At relatively low engine speeds an eccentric portion of the cam pin extends above the cam surface so as to engage the valve lifter producing an opening of the exhaust valve during the compression portion of the engine cycle.  At higher engine speeds the cam pin is rotated so that the eccentric portion of the cam pin no longer extends above the cam surface so that the exhaust valve is not opened during the engine compression.  This operation produces a release of the compression at lower engine speeds.  The compression release mechanism is designed so that the noise attributable to the valve lifter engaging the cam pin will be minimized.
Patent CA-2005233-C (CA)
Title: Melamine-based light stabilizers for plastics
Inventor: NELSON RICHARD VICTOR
IPC: C07D401/14
Filed: 1989-12-12
Granted: 1999-04-13
Abstract: Melamine-based compounds having a multiplicity of 2,2,6,6-tetraalkyl piperidine moieties are useful as light stabilizers for organic polymers.  The compounds have the formula:           (see fig. I) wherein:    R is the group:        (see fig. II) R1 is selected from hydrogen and an alkyl group having 1-5 carbon atoms, R2 is selected from the group consisting of hydrogen, oxyl, hydroxyl, a straight or branched chain methylene-linked alkyl group having 1-18 carbon atoms, an alkanoyl group having 2-18 carbon atoms, an alkenyl group having 3-4 carbon atoms, an alkenoyl group having 3-6 carbon atoms, an alkynyl group having 3-6 carbon atoms, a cyanomethyl group, a 2,3-epoxypropyl group, a benzyl or alkylbenzyl group having 7-15 carbon atoms, a group having the formula -CH2CH(OR3)-R4, and a group having the formula -(CH2)m-C(O)-Z wherein Z is selected from OR5 and -N(R6)(R7) when m is 1 or 0 and when m is 0, Z can be the group -C(O)-OR8, R3 is selected from the group consisting of hydrogen, an aliphatic group having 1-18 carbon atoms, an araliphatic group having 7-15 and an alkanoyl group having from 2-18 carbon atoms, R4 is selected from the group consisting of hydrogen, an alkyl group having 1-16 carbon atoms and phenyl, R5 is selected from the group consisting of an alkyl group having 1-18 carbon atoms, a cycloalkyl group having 5-12 carbon atoms, allyl, benzyl, phenyl and a group of R, R6 and R7, may be the same or different, and each is selected from the group consisting of hydrogen, an alkyl group having 1-8 carbon atoms, a cycloalkyl group having 5-12 carbon atoms, an alkaryl group having 6-10 carbon atoms, an aralkyl group having 7-15 carbon atoms, and additionally R6 and R7, together with the N-atom to which they are attached, can form a 5-7 membered ring consisting of pyrrolidine, piperidine and homopiperidine, R8 is selected from the group consisting of an alkyl group having 1-18 carbon atoms, phenyl and benzyl, and B is a divalent alkylene group having 1-10 carbon atoms, and Y is selected from -O- and -NH-.
Patent CA-2005610-C (CA)
Inventor: RODRIGUEZ-CAVAZOS ENRIQUE
IPC: H04N3/18
Filed: 1989-12-14
Granted: 1999-04-20
Abstract: A dual power source output amplifier comprises at least one pair of first and second input voltage sources of like polarity, operating at low and high voltage magnitude levels respectively relative to one another, and selectively operably coupled to an output stage for driving a load, for example a convergence yoke coil, in low and high voltage modes respectively.  The first voltage input source is coupled to the output stage in the low voltage mode.  A circuit for directly sensing the output voltage couples a biasing voltage level to the output voltage for generating a high voltage demand control signal which varies directly with the output voltage.  A voltage regulator couples regulated high voltage from the second voltage input source to the output stage in the high voltage mode, responsive to the high voltage demand control signal.  The output stage operates substantially linearly in both voltage modes.  The first voltage input source is isolated from the second voltage input source during operation in the high voltage mode. High power demand is directly sensed and anticipated to preclude operational power output lags.
Patent CA-2009137-C (CA)
Inventor: LESSING RAINER
IPC: G01M11/08
Filed: 1990-02-01
Granted: 1996-11-12
Abstract: A measuring device with a light wave conductor-bending sensor for monitoring bridge structures comprises a light emitter and a light receiver, a  multi-mode light wave conductor  arranged to extend along a structural part and having two ends connected with the light emitter and the light receiver, respectively, an elongated plate having a lower side arranged to be placed on and connected with the structural  part and also  having an upper side provided with a longitudinal groove, two  sliding rails  arranged  in the longitudinal groove and having outer ends fixed to the plate and inner ends spaced from one another to form an intermediate space and movable relative to the plate.  The light wave conductor is fixed with one of the sliding rails, then extends through the  intermediate space and forms a freely movable curve, and then exztends along and is fixed to the other of the movable rails.
Patent CA-2016237-C (CA)
Title: Hot-air furnace
Inventor: KAMANAKA RYUSUKE
IPC: F24H3/06
Filed: 1990-05-08
Granted: 1995-11-07
Abstract: A hot-air  furnace  has  a  long-flame  burner  for combusting gas or liquid fuel with a combustion chamber connected to the burner and having its length (1) and width (W1) in relationship of w1<1.  A heat exchanger is located above the combustion chamber and has internally a gas flow guide plate which guides combustion gas flow discharged  from the combustion chamber to the heat exchanger.   The heat exchanger has a width (w2)  and length (1) in the relationship of W2<1. An exhaust port for exhausting the combustion gas flow is located at the front or rear of, right or left-hand side of or on the top side above said heat exchanger.  A casing has a drum integrally connecting the combustion chamber and the heat exchanger, an air flow guide and directing plate which covers the drum, a radiant heat absorber plate outside the combustion chamber, and a blower above or below the drum.  A discharge port is mounted in such a manner  that  the  direction  of  discharging  air  flow corresponds to the up or down position of the blower.
Patent CA-2021492-C (CA)
Title: Moulding machine transfer mechanism
Inventor: EMERY ROY WILLIAM
IPC: D21J5/00
Filed: 1990-07-18
Granted: 1995-09-26
Abstract: In a precision moulding or finishing machine operating in continuous motion to form fully finished products from materials such as wood pulp, an improved system for transferring a preform into a transfer mould and thence into precision mating with a finishing mould in a pressing operation suitable for manufacturing products such as bowls, cups, pots and boxes, the preform remaining in one pair of moulds throughout the pressing operation. Transfer mould assemblies are transferred sequentially from one transporting carrier to another for fully rotatable mounting on releasable mounts guided precisely through a preferred endless travel path and orientation program. The concept of a releasably mounted and freely transferable transfer mould assembly provides for the addition of such functions as printing and labelling in the same continuous production line.
Patent CA-2028804-C (CA)
Title: Biomosaic polymers and method for preparing same
Inventor: BUTTERY HOWARD J
IPC: C08F2/24
Filed: 1990-10-29
Granted: 2000-06-20
Abstract: A biomosaic polymer as provided. Biologically active materials axe bound at surfaces of such polymers polymerized from emulsions containing hydrophobic polymerizable monomers, such biologically active materials, and surface active agents. The biomosaic polymers may be formed into membranes, films, beads, or other structures for a variety of assays, bioseparations, or catalyzed reactions and other uses. A single step polymerization of the emulsion provides significant retention of the biologically active material bound and congregated at surfaces of the polymer.
Patent CA-2030100-C (CA)
Title: Scanning device
Inventor: BLAIS FRANCOIS
IPC: G02B26/10
Filed: 1990-11-15
Granted: 2000-08-08
Abstract: A scanning device has a drive system to angularly reciprocate a rotatable mirror about an axis in a desired waveform in accordance with an excitation signal supplied by a programmable waveform generator. A position sensor generates a signal representing the actual waveform of reciprocation of the mirror, and a microprocessor determines a signal representing the error between the actual waveform and the desired waveform. The microprocessor includes a waveform optimizer that receives this error signal and delivers an excitation correction signal to the waveform generator to adjust the excitation signal from the waveform generator to cause the mirror to have an actual waveform substantially in accordance with the desired waveform.
Patent CA-2030600-C (CA)
Title: Aircraft antenna with coning and banking correction
Inventor: HANNAN PETER
IPC: H01Q1/28
Filed: 1990-11-22
Granted: 2000-04-25
Abstract: Array antennas for aircraft use have a shiftable center of radiation. The antenna beam of a group of laterally spaced array antennas is steered and the beam shape is controlled by relative shifting of the centers of radiation of the arrays. Beam tilting in afuselage mounted system of array antennas uses controlled selection of active antennas.
Patent CA-2032271-C (CA)
Title: Process for making continuous films of ordered poly(aryl ether ketone ketones)
Inventor: MOSS ARTHUR ZENKER
IPC: B29C48/08
Filed: 1990-12-14
Granted: 2001-06-05
Abstract: A process for extruding a smooth and uniform film or sheet of an ordered poly(ether ketone ketone) having a thickness of about 2.5 to 250 micrometers, wherein the molten extrudate is quenched on a drum maintained at a temperature of about 100-170°C.
Patent CA-2037279-C (CA)
Inventor: KAWANAKA MASANOBU
IPC: B60K17/10
Filed: 1991-02-28
Granted: 1994-03-08
Abstract: Abstract of the Disclosure An operating speed change-over device is equipped with an automatic speed change-over valve which opens and closes a pilot fluid line that connects a pilot port of a capacity change-over valve of a capacity-variable hydraulic motor to a pilot pump.  The automatic speed change-over valve has one pilot port that is connected to a pressurized fluid feed line leading to the hydraulic motor and has another pilot port connected to the return fluid line of the hydraulic motor.  The automatic speed change-over valve is changed over by an effective differential pressure between the two fluid lines.
Patent CA-2040382-C (CA)
Title: Method to recover poly(arylene sulfide) polymers
Inventor: SCOGGINS LACEY E
IPC: C08G75/02
Filed: 1991-04-12
Granted: 1997-05-27
Abstract: A method is provided for recovering poly(arylene sulfide) polymers characterized by low ash and oligomer concentrations and having a larger particle size, which method comprises, during recovery, adding or maintaining a sufficient amount of a polar organic compound to the reaction mixture immediately after solidifying the poly(arylene sulfide) polymer.
Patent CA-2043815-C (CA)
Inventor: HENSLEY HARVEY DEAN
IPC: C07C5/333
Filed: 1991-06-04
Granted: 1997-04-01
Abstract: An apparatus and a method for integrating several petroleum refining processes so as to efficiently produce tertiary alkyl ether compounds from a feed stream containing both saturated and unsaturated hydrocarbons  is disclosed. An important step for forming isoolefins in the integrated process involves simultaneous catalytic conversion of an isoparaffin to an isoolefin and   an   n-olefin   to   an   n-paraffin   in   a   combination hydrogenation/dehydrogenation reactor.  The thus produced isoolefin is reacted with a primary alcohol to form the desired tertiary alkyl ether compound in an ether forming process.   Other conversion process included in the overall integration are  an  isomerization  process  to  convert  n-paraffins  to isoparaffins and optionally an alkylation process to convert isoparaffins and olefins to an alkylate product.
Patent CA-2044386-C (CA)
Title: Hub-mounted vehicle back-up alarm
Inventor: HUTCHISSON JAMES
IPC: B60Q1/22
Filed: 1991-06-12
Granted: 2000-05-02
Abstract: A self-powered back-up alarm for mounting to the wheel hub of a heavy truck or like vehicle. The alarm includes a housing adapted to be mounted to a vehicle wheel hub. Inside the housing is a magnetized stator that is held stable by a counterweight mounted for free rotation to a spindle in the housing. Also mounted in the housing is a power supply including a coil positioned adjacent the stator in the housing and attached thereto so that it rotates about the stator when the wheel hub turns. A battery stores the energy developed across the coil when the wheel hub rotates. Also mounted inside the housing are sensors located adjacent the stator that similarly rotate with the wheel hub. The sensors, in combination with an associated detect circuit, produce a reverse motion signal whenever the vehicle backs up. An audio alarm, located in the housing, is actuated by the reverse motion signal and emits an audible warning whenever the vehicle backs up.
Patent CA-2044733-C (CA)
Title: Plant seedling holding and dispensing mechanism
Inventor: HUBER ERNST
IPC: A01C11/02
Filed: 1991-06-17
Granted: 2001-10-02
Abstract: A seedling holding and dispensing mechanism used on planters having a planting arm which is intermittently extended downwardly into the soil. The seedling holder and dispenser is preferably mounted along the trailing edge of the planting arm. The seedling holder includes a first jaw and a second jaw. The first jaw is preferably mounted to the trailing edge of the planting arm in a fixed position. The second jaw is mounted for movement relative to the first jaw to allow clamping of the seedlings. The second jaw can be pivotally mounted, such as by using a connecting rod which is pivoted torsionally about a longitudinal axis. A proximate end of the connecting rod is adapted to have a lever arm. The mechanism preferably uses retraction and extension position actuators which automatically open the jaws in both the retracted loading position and the extended discharging position. A biasing spring biases the jaws together when not actuated to thereby hold the seedling as it is moved downwardly and inserted into the soil.
Patent CA-2047436-C (CA)
Title: Power panel structure
Inventor: DEFOUW JERRY A
IPC: H02G3/00
Filed: 1991-07-19
Granted: 2002-08-20
Abstract: A power panel for use with wall panels of a space-divider system includes a lightweight frame structure having vertically extending end plates and a central web. Front and rear spaces are defined on either side of the web to accommodate electrical and communication wiring and receptacles on both the front and the back of the panel. A rib, extending from the web, divides the front and rear areas and provides physical separation between electrical power and communication wiring. The portion of the web on one side of the rib has an offset curved section to accommodate electrical wiring conduits extending vertically from the top to the bottom of the power panel. The power panel includes an upper area, with a removable cover, above the upper edge of the frame structure to accommodate wiring to and from, and between wall panels adjoining the power panel. A U-shaped cover is removably attached to the lower edge of the frame structure to accommodate wiring to and from, and between, panels adjoining the power panel. Snap-fit removable covers are attached to the front and back of the frame structure. The removable front and back covers and removable upper and lower covers provide easy access to the wiring in the power panel, which accommodates wiring in both the horizontal and vertical direction. The power panel accommodates receptacles on both the front and back in a back-to-back relationship, without increasing the thickness of the power panel beyond that of the standard wall panel, thereby providing an aesthetically pleasing arrangement.
Patent CA-2049322-C (CA)
Title: Process for preparing kraft pulp
Inventor: TIKKA PANU
IPC: D21C1/00
Filed: 1991-02-11
Granted: 2002-08-20
Abstract: Processes for preparing kraft pulp are disclosed. The processes include pretreating cellulosic material or chips with spent cooking liquor at the temperature of about 20 to 100°C, followed by heating the impregnated chips at the temperature of from about 120 to 180°C, followed by digestion of the lignin with white liquor, which is facilitated by using this pretreatment process.