baber/WOPTO huggingface dataset:
Patent CA-2006598-A1 (CA)
Inventor: THIJSSEN STAN
IPC: C09K21/14
Filed: 1989-12-22
Abstract: ABSTRACT       The flameproof product contains fibre material and/or fillers and a reaction resin as binder and several flameproofing agents.  The flameproofing agent are  a  combination  of  organic  borates,  salts  of phosphoric acids and oxide hydrates of magnesium and/or of aluminium, the total amount of which in the product is 3-35%  by weight.    Products which  contain  this combination of flameproofing agents and up to 50% by weight  of  reaction  resin  are  resistant  to glowing combustion  according  to  DIN  53,459  and  have subsequent glowing combustion time of less than 1 min according to Nordtest NT-Fire 002.
Patent CA-2009353-A1 (CA)
IPC: B65D6/24
Filed: 1990-02-05
Abstract: ABSTRACT OF THE DISCLOSURE The present invention is a container for transportation and storage.  It comprises a base and side panels for posi-tioning on the base to form a universal storage container.          The side panels have a panel structure for maintaining the structural integrity of the side panel, with at least one latch near a lower edge for securely attaching the panel to the base.  The vertical edges of the side panels have universal joints to interconnect the panels.  Also, a cover can be provided and the panels can include at least one latch near an upper edge for securely attaching the side panel to the cover.  In another embodiment, plastic support braces extend between side panels to support articles, boxes, or shelves inside the container.  The support braces are held in place by tether pins located in shelving recesses of the side panels.
Patent CA-2009952-A1 (CA)
Title: Ovoid atherectomy cutter
Inventor: FARR ANDREW F
IPC: A61B17/32
Filed: 1990-02-13
Abstract: ABSTRACT    A rotatable atherectomy cutter  for  removing obstructive tissue from a body vessel includes a hollow cylindrical base having an outer wall, a hollow cylindrical guide tip coaxially distanced from the base for slidably receiving a guide wire and a pair of diametrically opposed blades each having a distal end and a proximal end.  The distal end of each blade is connected to the guide tip and the proximal end connected to the base for alternately cutting the tissue with a first cutting edge and a second cutting edge longer than the first cutting edge.   The proximal end of each blade is connected to an ovoid portion formed in the base for allowing the second cutting edge of the blade to extend beyond the outer diameter of the cylindrical base to cut a diameter of tissue larger than the diameter of the base.  The base includes a straight wall portion connecting the pair of blades to establish the first cutting edge on each of the blades.   The blades are inclined to the longitudinal axis of the cutter at an angle in the range of between thirty (30)  and  seventy  (70)  degrees  and  are  preferably  made  of stainless steel.   Also included is a mechanism for removing debris through an opening in the top of the base.  The ovoid portion extends the second cutting edge of the blades beyond the outer wall a distance of approximately five (5) to ten (10) percent of the diameter of the base.
Patent CA-2010082-A1 (CA)
Title: Dermic conductive net used for the application of currents to a person for therapeutic or esthetic purposes, and apparatus using such a net
Inventor: RAMOND GERARD
IPC: A45D44/22
Filed: 1990-02-14
Abstract: The conductive film, in this case in the form of a mask (1), is used for the application of pulsed electric currents, delivered by the generator (9) and applied via conductive plates (4a, 4b) at the ends of an elastic hoop (3), to the facial skin. The mask (1) is formed by application of a polymerisable gel consisting typically, by weight, of 20% of polyvinyl alcohol (Rhodoviol TM  30/70), 10% of ethanol, 2% of water-soluble lanolin and 1% of glycerol. The gel remains conductive until polymerisation is complete, in the space of approximately half an hour, which corresponds to the normal treatment period. When polymerised, the mask (1) is insulating and flexible, and is removed in one piece. 
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Patent CA-2011064-A1 (CA)
Inventor: FRITZ HANS-GERHARD
IPC: G01N33/44
Filed: 1990-02-27
Abstract: Method and apparatus for detecting in conformity with process time mixing ratios in plastics and rubber compounding A method and an apparatus have been found, with the aid of which important properties can be determined during the extrusion of polymer melts: - continuous measurement of the density of pure polymers (density constancy) - plotting of p, v, T diagrams of plastics - determination of percentages by volume and weight in polymer/filler or polymer/reinforcing agent mixtures - determination of proportions by weight of pigment in masterbatch preparation - determination of measuring data for statements going further regarding mixing and thermal homogeneity of the material. Furthermore, the apparatus as a sensor is suitable as basic module for a closed control loop for monitoring and keeping constant proportions of filler.
Patent CA-2011229-A1 (CA)
Inventor: LEONARDI GIOVANNI MICHELE
IPC: H02M3/28
Filed: 1990-03-01
Abstract: In a switch mode power supply, a first switching transistor is coupled to a primary winding of a transformer for generating pulses of a switching current. A secondary winding of the transformer is coupled via a switching diode to a capacitor of a control circuit for developing a control signal in the capacitor. The control signal is applied to a mains coupled chopper second transistor for generating and regulating supply voltages in accordance with pulse width modulation of the control signal. During standby operation, the first and second transistors operate in a burst mode that is repetitive at a frequency of the AC mains supply voltage such as 50Hz. In the burst mode operation, during intervals in which pulses of the switching current occur, the pulse width and peak amplitude of the switching current pulses progressively increase in accordance with the waveform of the mains supply voltage to provide a soft start operation in the standby mode of operation within each burst group.
Patent CA-2011719-A1 (CA)
IPC: B01F7/00
Filed: 1990-03-08
Abstract: ABSTRACT OF THE DISCLOSURE      Improved mixing equipment of the wall-baffled, cylindrical, mixing-vessel type is provided.  The novel baffles employed have a uniform cross-sectional form corresponding generally to a small geometric segment of a circle, the radius of which circle is substantially equal to that of the inner wall of said mixing vessel.  A plurality (e.g., 2 to 4) of such baffles mounted at uniformly spaced locations around the periphery of said inner wall are employed together with a concentrically located, multi-bladed impeller capable of providing good axial and radial mixing within said vessel.  The subject mixing equipment can deliver outstanding performance in terms of speed and completeness of mixing, as well as economy in power consumption and peak power requirements.    Results  are  especially  noteworthy when  the equipment is used to mix chemical reagents (gaseous or liquid) with thick, non-Newtonian suspensions of solids and liquids; e.g., wet wood pulps and similar compositions containing fine, fibrous solid matter.
Patent CA-2014565-A1 (CA)
Title: Satellite antenna mounting apparatus
IPC: H01Q1/12
Filed: 1990-04-12
Abstract: SATELLITE ANTENNA MOUNTING APPARATUS               Abstract of the Disclosure Antenna mounting apparatus especially for use in connection with satellite dishes comprises a base assembly with an antenna extending upwardly therefrom, multiple ballast means extending radially from the base assembly, outer end plates disposed respectively adjacent the end of the ballast means remote from the base assembly, an aperture formed in each ballast means, and tie rods extending respectively through the apertures and interconnecting the base assembly and the associated outer end plate.
Patent CA-2015536-A1 (CA)
Inventor: BOLT IAN J
IPC: A61K9/46
Filed: 1990-04-26
Abstract: A chewable tablet comprises a medicament dispersed in a chewable base, such as mannitol, together with an effervescent couple, such as citric acid - sodium bicarbonate. The combination of effervescence and chewability with optional flavourings improves the taste characteristics of the medicament in oral adminstration. A disintegrant such as microcrystalline cellulose may be added to give the patient the option of dispersing the tablet in water.
Patent CA-2016015-A1 (CA)
Inventor: SEMBER JAMES W
IPC: H02P6/16
Filed: 1990-05-03
Abstract: ABSTRACT      A  method  of controlling a  switched  reluctance motor  during high speed operation in  an  operational range when the counter electromotive force exceeds the available  DC  source  voltage  and,  therefore,   the maximum desired converter current cannot be  obtained, establishes torque control in a feedforward manner  by controlling current pulse position.
Patent CA-2016048-A1 (CA)
Inventor: LOBLICH KARL-RICHARD
IPC: C01F11/46
Filed: 1990-05-04
Abstract: A description is given of a process for the production of potassium magnesium phosphate hexahydrate by reacting calcium dihydrogen phosphate with potassium sulfate and a basic magnesium compound.
Patent CA-2017044-A1 (CA)
Title: Pyrrolidone derivatives, process for their preparation and pharmaceutical composition containing same
Inventor: REGNIER GILBERT
IPC: A61K31/40
Filed: 1990-05-17
Abstract: New pyrrolidone compounds of the formula:  <IMAGE>  in which: R is OR'', SR'' or N (R3R4) R' is optionally substituted alkyl or aryl, and the carbon in the 5-position of the pyrrolidone ring, which is substituted by CH2R has the R or S configuration. These new compounds and their physiologically tolerable salts may be used therapeutically especially in the treatment of asthenias, ischaemic syndromes and nervous disorders associated with normal or pathological ageing.
Patent CA-2017134-A1 (CA)
Title: Steering axis forming an anti-theft blockage device
Inventor: BARNABE JEAN-PIERRE
IPC: B62D1/16
Filed: 1990-05-18
Abstract: This steering column having a cylindrical tubular body (1) of circular cross-section comprises a profiled part (8) forming a locking device. In this part (8) longitudinal grooves (10) having a width which corresponds to that of a locking sliding bolt have a depth at least equal to the thickness of the wall of the initial tube and are separated by solid ribs (12). On the inner face of the device (8) circular projections delimit V-grooves between them, whose peaks correspond substantially to the mid-part of the ribs. Each rib (12) thus has sufficient strength to counteract the torque exerted during an attempted theft. Each groove can receive the sliding bolt in one locking position. The column comprises at least two grooves (10). <IMAGE>
Patent CA-2017233-A1 (CA)
Title: Polymers of carbon monoxide with olefinically unsaturated compounds
Inventor: DRENT EIT
IPC: C08G67/02
Filed: 1990-05-22
Abstract: A B S T R A C T            POLYMERS OF CARBON MONOXIDE WITH OLEFINICALLY UNSATURATED COMPOUNDS      Polymers of carbon monoxide with one or more olefinically unsaturated compounds, a)   which can be obtained by polymerizing carbon monoxide with one or more monoolefinically unsaturated bicyclic compounds which contain a cyclohexane ring in which the carbon atoms 1 and 4 are interconnected through one oxygen or carbon atom, in which the carbon atoms 5 and 6 are interconnected through an olefinic double bond and which may be substituted at the carbon atoms 2 and/or 3, b)   which have a linear structure, c)   in which the units originating in carbon monoxide on the one hand, and the units originating in the monoolefinically unsaturated bicyclic compounds on the other hand, occur in alternating order, and d)   in which more than 75% of the units originating in carbon monoxide is present in the spiroketal structure, and a process for their preparation.
Patent CA-2018098-A1 (CA)
Title: Hiv p24 quantitation panel
Inventor: STEWART JAMES L
IPC: C07K14/16
Filed: 1990-06-01
Abstract: ABSTRACT   The present invention is directed to improved immunoassay methods, and compositions and kits for carrying out the methods, for quantitating HIV p24 antigen in a biological sample. The method involves contacting a sample with an antibody specific for HIV p24 antigen, whereby a detectable antigen-antibody complex is formed, and quantitating the amount of the complex formed by employing a quantitation panel as a standard with which the amount of the complex formed can be compared. The method involves utilizing purified HIV p24 antigen in the quantitation panel. Preferably, the quantitation panel comprises lyophilized standards containing immunoaffinity-purified viral p24 antigen. The composition includes purified viral HIV p24 and a buffer. The kit includes a panel of purified viral HIV p24 compositions.
Patent CA-2018693-A1 (CA)
Inventor: DOLLHOPF RUDIGER
IPC: B29C48/40
Filed: 1990-06-11
Abstract: ABSTRACT OF THE DISCLOSURE:         A gearing with two axis-parallel output shafts rotating in the same direction, for operation of a double screw extruder, has two pinions of equal size which are arranged in the annular space between an internally toothed ring gear and an intermediate gear in the spacing of the screws of the double screw extruder and mesh with the intermediate gear and with the ring gear.  The first of the two pinions is arranged on the driving shaft, which is extended as output shaft.  The second pinion is arranged on the  second  output  shaft.    The gearing permits  torque division of the torque from the driving shaft to the two output shafts.
Patent CA-2020742-A1 (CA)
Title: Process for preparing a layered hydrogel product
Inventor: KOHARA SABURO
IPC: A23P20/20
Filed: 1990-07-09
Abstract: An industrially advantageous process for preparing a layered hydrogel product, which comprises pouring into a mold of a desired shape an aqueous solution (I) containing at least one gelling agent, and an aqueous solution (II) containing xanthan gum and at least one thickening agent selected from a group of locust bean gum, tara gum, cassia gum and glucomannan, separately or simultaneously; and cooling the resultant to dive a layered hydrogel product.
Patent CA-2021228-A1 (CA)
Title: Online energy flow measuring device for natural gas
Inventor: THOMPSON WILLIAM L
IPC: G01N33/22
Filed: 1990-07-16
Abstract: ABSTRACT OF THE DISCLOSURE          A method and device for measuring energy in fuel gas  comprises  a  solid  electrolyte  oxygen  pump  for generating  an  amount  of  oxygen  in  response  to  current being supplied to the pump.  A sample of the gas is mixed with the oxygen from the pump to produce a mixture which is  subjected  to  complete  combustion  in  a  catalytic combustor.  An oxygen sensor is connected to the catalytic combustor for measuring excess oxygen in the exhaust gas from the combustor. A signal from the oxygen signal  is compared to a known and desired amount of excess oxygen in the exhaust  gas.   If  there  is  too  much  or  too  little oxygen in the exhaust gas,  a feedback signal is used to adjust the amount of current being supplied to the oxygen pump until the actual amount of excess oxygen is equal to the selected amount of excess oxygen.  The selected amount of excess oxygen is indicative of complete combustion of the sample mixture.  With the excess oxygen equaling the desired oxygen in the exhaust gas,  the amount of current being supplied to the pump is used to calculate the energy in the fuel sample.
Patent CA-2022003-A1 (CA)
Inventor: MATSUMOTO YASUHIKO
IPC: B05C17/00
Filed: 1990-07-26
Abstract: A machine for applying a floor-coating agent has body supported on wheels at least some of which are driven. An application device for applying floor-coating agent onto a floor surface by an application member is mounted for vertical movement on the machine body between a "free-lift" state where the device is lowered, by its own weight, relative to the machine body to place the application member into pressure contact with the floor surface and a "lift-up" away from the floor surface. A control member is provided for selectively bringing the application device into the free-lift state or the lift-up state.
Patent CA-2024036-A1 (CA)
Inventor: IMAEDA MINORU
IPC: G01R33/032
Filed: 1990-08-27
Abstract: A high sensitivity optomagnetical sensor comprising a light source, a magnetic field-detecting section, a light-receiving section for receiving light emitted from the light source through the magnetic field-detecting section, a measurement-controlling section for controlling the light source, the magnetic field-detecting section, and the light-receiving section, and for measuring an intensity of light received by the light-receiving section, and light transmission paths using optical fibers for optically connecting the light-source section and the magnetic field-detecting section and optically connecting the magnetic field-detecting section and the light-receiving section.  The magnetic field-detecting section is constituted by a polarizer, an analyzer and a magnetooptical element arranged between the polarizer and the analyzer.  A garnet type ferrite polycrystal is used as a magnetooptical element of the sensor. The ferrite polyarystal has a Verdet constant of not less than 1 deg/cm~Oe, a thickness of not less than 100 µm, a light transmittance of not less than 10%, a temperature dependency on detecting the magnetic field in a temperature range of -20 to +60°C being within ~1.0%, a magnetic field-detecting precision of not more than 1/10,000, and a composition of BixGdyYzFe5O12 (x + Y + Z = 3).
Patent CA-2026902-A1 (CA)
Title: Process for nitrocarburizing components made from steel
Inventor: WAHL GEORG
IPC: C23C8/56
Filed: 1990-10-04
Abstract: Steel pieces can be nitrocarburised within relatively short times in salt baths containing cyanate and cyanide, if the treatment is carried out at 600 to 700 DEG C in a first stage and at 560 to 590 DEG C in a second stage. The pieces show the same or better properties as in considerably longer treatment at 560 to 590 DEG C.
Patent CA-2027001-A1 (CA)
Title: DC Braking of Inverter-Driven AC Motors
Inventor: GRITTER DAVID J
IPC: H02P3/24
Filed: 1990-10-05
Abstract: A DC braking system for an inverter-driven induction motor, (e.g., three-phase).  When a braking command occurs, the normal gating sequence of the inverter stops.  Mode 1 of the braking procedure starts.     In Mode 1, two semiconductor phase switches of the group connected with one of the DC buses and the semiconductor switch of the third phase that is connected with the other DC bus are latched in a conducting state.  The motor essentially receives DC current, which increases until it actuates a current limit device, clearing the latch. Then all six switches are turned off.  That drives the motor current through the back-biased parallel diodes.  The negative DC bus voltage is available to suppress motor current despite large motor speed voltages.  The apparatus repeats the Mode 1 procedure for a predetermined time interval, after which Mode 2 of the braking procedure starts.     In Mode 2, just as in Mode 1, two switches of one bus and one switch of another bus conduct until an overcurrent limit is reached.  Then the one switch which is connected to a different bus turns off and its complement (same phase, other bus) turns on, allowing motor current to circulate in the motor windings.  This allows current to decay at a slower rate than it would in Mode 1.  The procedure of Mode 2 is repeated for a predetermined time interval.     If the motor speed is below a predetermined threshold when the braking command occurs, Mode 1 is skipped and only Mode 2 is used.
Patent CA-2028111-A1 (CA)
Title: Method of and apparatus for laser beam machining employing an off-axis parabolic reflector
Inventor: TORII NOBUTOSHI
IPC: B23K26/08
Filed: 1990-02-28
Abstract: ABSTRACT      A laser beam machining method employing an off-axis parabolic reflector, and an apparatus for carrying out the same.  The laser beam machining apparatus comprises: a laser beam path 920, 42, 46) for guiding a laser beam emitted by a laser along a fixed path of incidence; an off-axis parabolic reflector (22, 50) having a parabolic reflecting surface (24) on which the laser beam is incident; a mirror holding unit (74, 90) for holding the off-axis parabolic reflector (22, 50) in a fixed posture and a fixed orientation; and drive means (80, M6 , M7) for moving the off-axis parabolic reflector (22, 50) held on the mirror holding unit (74, 90) along a circular locus included in a plane including the optical axis of the incident laser beam or in a plane parallel to the former plane.  The focus of the reflected laser beam reflected by the off-axis parabolic reflector is moved along a circular locus of a diameter equal to that of the circular locus along which the off-axis parabolic reflector is moved on the objective surface (32) of a workpiece for machining.
Patent CA-2030545-A1 (CA)
Title: Sliding gate valve at the outlet of a vessel containing, in particular, metal melt and associated refractory valve members
Inventor: LUCHS WILLI
IPC: F27D3/14
Filed: 1990-02-07
Abstract: ABSTRACT       SLIDING GATE VALVE AT THE OUTLET OF A VESSEL CONTAINING, IN PARTICULAR, METAL MELT AND    ASSOCIATED REFRACTORY VALVE MEMBERS            Provided in a sliding gate valve (20) in the outlet of a vessel (22) containing,  in particular,  metal melt, are valve members (23,24) with flow openings (32,33) which extend into the interior of the vessel and each have therein two parallel,  approximately flat sliding surfaces (25,26,27,28) at which they are movable with respect to one another to open and close the flow opening.  (Fig. 3)
Patent CA-2031763-A1 (CA)
Title: Process for purification of a 69000 dalton antigentic protein from bordetella pertussis
Inventor: GOTTO JOHN W
IPC: C07K16/00
Filed: 1990-12-07
Abstract: 31,156 PROTEIN FROM BORDETELLA PERTUSSIS             ABSTRACT A process  for  extracting  and  purifying  a protein having an apparent molecular weight of about 69,000 daltons from the outer membrane of the bacterium Bordetella pertussis is provided.  The process includes inactivating  Bordetella   pertussis   cells   with   a bacteriostatic   agent,   repetitive   extraction,   and purification of the 69,000 dalton protein from extract by    dye    ligand    chromatography    followed    by chromatofocusing.   The  process  results  in  improved yield and stability of the 69,000 dalton protein.
Patent CA-2031821-A1 (CA)
Inventor: PAULET MARC
IPC: F41G7/26
Filed: 1990-12-07
Abstract: ABR?G? DESCRIPTIF Système de transmission d'ordres de guidage pour missile téléguidé en mode optoélectronique Ce système comporte un détecteur optoélectronique recevant d'un poste de conduite de tir distant un signal de guidage transmis par un faisceau optique. Selon l'invention, il est prévu un porteur aérodynamique (6), non propulsé, relié au corps du missile (1) par une liaison non rigide (7) lui permettant d'être tracté par le missile pendant la phase de propulsion de celui-ci. L'ensemble est configuré de manière que, sous l'effet de cette traction, le porteur aérodynamique prenne une incidence (.alpha.) lui permettant, en direction transversale, de s'écarter du corps du missile d'une distance (x) supérieure à l'étendue de la zone (4) dans laquelle 18 transmission du faisceau est essentiellement perturbée par la flamme du propulseur du missile. Le porteur aérodynamique est pourvu à son extrémité arrière, tournée dans la direction d'incidence du faisceau optique, d'un transducteur optique propre à capter le signal optique de guidage transmis par ce faisceau (3). La liaison non rigide (7) comprend de préférence une fibre optique couplée optiquemant, à l'une de ses extrémités, au transducteur disposé sur le porteur aérodynamique, de manière à injecter dans la fibre le signal optique reçu par ce transducteur et, à son extrémité opposée, au détecteur optoélectronique (2) disposé dans le corps du missile, de manière que ce détecteur reçoive de la fibre le signal optique reçu injecté dans celle-ci à son autre extrémité, et transforme en signal électrique de guidage ce signal optique reçu. Figure 2