baber/WOPTO huggingface dataset:
Patent CA-2029216-A1 (CA)
Title: Process of producing modified superoxide dismutase
Inventor: NAKANO YOSHIYUKI
IPC: A61K8/00
Filed: 1990-11-02
Abstract: Abstract of the disclosure:    A modified superoxide dismutase represented by the formula:        (wherein R is as defined below; SOD is a residue of superoxide dismutase) is produced, in a shortened period of reaction with a high and constant modification ratio, by reacting a polymeric carbonyldiimidazole derivative represented by the foprmula:        (wherein R is a residue of a water-soluble polymer having an average molecualr weight of about 2,000 to 10,000) with superoxide dismutase in the presence of a buffer having a pH of 9.0 to 11.0 and a concentration of 0.1 M to 0.5 M, preferably 0.2 M to 0.4 M, at a temperature of 30 to 70°C, prefrably 45 to 60°C.     The modified superoxide dismutase thus produced exhibits a suitably prolonged blood half-life.
Patent CA-2029513-A1 (CA)
Title: Rotary cutter tool
Inventor: STE MARIE RAY M
IPC: B26D1/153
Filed: 1990-11-07
Abstract: Abstract of the Disclosure Provided is a rotary cutting tool for cutting elongated objects such as electrical cable armor.  The tool includes a  frame  or  yoke  with  a  rotary  cutting  element  supported thereon.    A  pair  of   spaced-apart  workpiece-contacting elements or guide  members are  supported on  the  frame and positioned on opposite sides of the cutting element to make contact   with   spaced-apart   portions   of   an   elongated workpiece  radially  outwardly  of  the  cutting  element's cutting   edge.    The   workpiece-contacting   elements   are yieldable  toward  the cutting edge  to an extent sufficient to allow relative movement of the cutting edge into cutting contact with the workpiece and to thereby guide and brace the  workpiece  against  substantially  tangential  movement relative to the rotary cutting element.
Patent CA-2029820-A1 (CA)
Title: System for whitening teeth
Inventor: ARNOLD MICHAEL J
IPC: A61K8/22
Filed: 1990-11-13
Abstract: Abstract A three component system and method for whitening teeth.  The first component is a pre-conditioning mouth rinse comprised of a dilute aqueous solution of acetic acid and N-L-alpha-aspartyl-L-phenylalanine methyl ester.   This component cleanses the pellicle film on the user's teeth and improves the uptake of molecular oxygen by the enamel from the second component which comprises a bleaching gel including hydrogen peroxide.  The preferred concentration of hydrogen peroxide is approximately six percent.  The third component is a polishing and pigmenting cream or paste that includes an abrasive substance and a pigmenting agent.  The abrasive agent is preferably an alumina silicate and the pigmenting agent is preferably titanium dioxide particles.
Patent CA-2034140-A1 (CA)
Inventor: GRITTI GIOVANNI
IPC: H01H50/30
Filed: 1991-01-15
Abstract: A direct current relay is disclosed, which is especially fit for railway type signalling systems. The said relay com-prises a core (7) extending horizontally through a coil (8), an iron yoke (6) disposed above the core (7), and fixed to the core fore end, and extending along the coil (8) to the core rear end, an armature (11) pivotally mounted at the free end of yoke (6), in front of the corresponding rear end of core (7), and sets of moving and stationary contact mem-bers (C1, C2, C3, C4, C5) carried by moving and stationary, elastically flexible strips (24) which project in superpos-ed and reciprocally spaced relationship from a contact carr-ier block fixed on the yoke (6). The free ends of the moving strips (24) are engaged with a vertically movable contact operator template (17) operatively connected with the arma-ture (11) for movement of the moving strips, to cause the moving contact members (C1, C2) to be moved into or out of electrical contact with the stationary contact members (C3, C4, C5) when the relay is energized. The moving and station-ary contact members are situated above the fore end of the yoke (6). Two counterweights (16) respectively arranged on either side of coil (8) are provided, which are operatively connected with the armature (11) for moving the same into rest position when the relay is de-energized.
Patent CA-2034222-A1 (CA)
Inventor: RHEN DENNIS
IPC: B61F5/14
Filed: 1991-01-15
Abstract: A railway vehicle side bearing has a housing adapted to be affixed to a railway vehicle truck intermediate the truck and a car body wear plate.  The housing has side and end walls enclosing a cavity adapted to receive a compliant elastomeric bearing having an upper end portion thereof extending vertically above the side and end walls.  A rigid spacer has an upstanding abutment portion disposed adjacent the upstanding elastomeric bearing and an upwardly facing surface adjacent the abutment portion.  A rigid bearing is supported on that surface for movement thereon between limits, the spacer and the rigid bearing having an overall vertical height that, when supported on that surface with the spacer disposed within the cavity the rigid bearing has an uppermost extent located above the highest elevation of the housing walls for contacting the wear plate so as to limit the vertically downward travel of the wear plate towards the side bearing.  The abutment portion extends vertically upward to an elevation sufficient to laterally confine a vertical extent of the elastomeric bearing extending intermediate the uppermost extent of the rigid bearing and the highest elevation of the housing walls for limiting movement of the vertical extent in at least one lateral direction throughout deformation of the elastomeric bearing in vertical compression.
Patent CA-2035567-A1 (CA)
Inventor: MORIYAMA TAKAMASA
IPC: C08L23/08
Filed: 1991-02-01
Abstract: DU CONTENU TECHNIQUE DE L'INVENTION COMPOSITION AMELIOREE DE COPOLYMERE ETHYLENE-ACETATE DE VINYLE SAPONIFIE ET SON UTILISATION Société dite : ATOCHEM 4 \A 8 Cours Michelet La Défense 10 92800 PUTEAUX Mandataire : Pierre POISSON Inventeurs : Takamasa MORIYAMA Hiroshi TAKIDA Tomoyoshi UEMURA L'invention concerne une composition à propriété barrière aux gaz comprenant un copolymère éthylène-acétate de vinyle saponifié, un copolymère de l'éthylène ayant une masse volumique de 0,90 - 0,94 g/cm3 et un agent compatibilisant défini dans la description. Utilisation de la composition pour la préparation de films utilisables notamment dans l'emballage.
Patent CA-2037309-A1 (CA)
Title: Device for fixing beater bars in peripheral cut-outs of impact crusher rotors
Inventor: BERGMANN WERNER
IPC: B02C13/28
Filed: 1991-02-28
Abstract: The invention relates to a device for fixing beater bars 9 in peripheral cut-outs 8 of impact crusher rotors 2., Provided in the peripheral cut-outs 8 and firmly attached to rotor 2 are securing means 10, 11, which engage with, corresponding parts of the fitted beater bar 9, securing it against radial movement outwards. Also, provided in the peripheral cut-outs are wedges 16, which force into engagement securing means 10, 11 with the beater bar 2 and which are held in their clamping position by thrust elements 17, 18 which press them against the rotor 2. Thrust elements 17, 18 allocated to one beater bar are connected via transverse holes with the longitudinal hole 20 of an axis-parallel-extending component 19. According to the invention, the component 19 is formed as a pressure line rail, which is arranged at the base of the peripheral cut-outs 8, whereby the thrust elements 17 are arranged on the side of the pressure line rail facing towards the wedges 16, so that they are supported against the pressure line rail and thus against the rotor 2:
Patent CA-2038380-A1 (CA)
Inventor: BALCOMBE ROY
IPC: B65B31/02
Filed: 1991-03-15
Abstract: A method of filling and sealing a bi-stable container, subjected to a gaseous environment, with a product, and a container containing the product.  The container has a bi-stable, unribbed bottom having a hoop member surrounding the side edges of the container and movable between a first position, in which the container bottom is moved into a stable downwardly extended position, and a second position, in which the container bottom is moved into a stable inverted domed configuration.  The container bottom is placed in its stable downwardly extended position and the product is charged into the container to a level having a volume less than the container volume but equal to the filled volume with such level defining a headspace opening.  The container is then placed in a vacuum environment chamber.  A generally flat lid is sealed to the container and the vacuum environment is removed from the container so as to return the container to atmospheric  pressure.    Hoop  stress  of  the  hoop  member overcomes the bending stress around said unribbed bottom such that the unribbed bottom of the container is inverted into said stable inverted domed configuration thereby forcing the product  into  close  contact  with  the  lid  to  reduce  the headspace between the product and the lid, the lid remaining in its generally flat configuration.
Patent CA-2040249-A1 (CA)
Title: Float chamber
Inventor: MARTIN CHRISTOPHER R
IPC: F16K31/18
Filed: 1991-04-11
Abstract: A Jumper valve for use in the float chamber of a boiling water unit.     The valve consists of a body of circular horizontal cross section having a vertical outer wall. The inner portion of the valve body includes a central circular cut-out seat portion to accommodate a cylindrical seal, the wall of the valve seat between the cut-out portion and the outer wall being sloped in the manner of the surface of the frustrum of a cone.
Patent CA-2041357-A1 (CA)
Title: Rewinder with means for changing the number of perforations provided around each log in the course of formation
Inventor: BIAGIOTTI GUGLIELMO
IPC: B26D9/00
Filed: 1991-04-26
Abstract: A  rewinder  for  producing  rolls  or  logs  (R)  of  web material (N) comprises at least a roller (5, 7, 8) rotating at a  speed proportional to the feeding speed of the web material (N), means (10, 11, 13) defining a winding space for the  formation  of  the  log  (R),  pusher  means  (15)  for introducing a core into said winding space, and cutting means (10, 21, 23, 25) for cutting the web material (N) at the end of. the winding of each individual  log  (R).   The rewinder further comprises means  (41,  61)  for automatically varying the phase of the motion of said cutting means (10, 21, 23, 25) with respect to the motion of the web material (N).
Patent CA-2041803-A1 (CA)
Title: Iontophoretic delivery device
Inventor: MYERS ROBERT M
IPC: A61N1/30
Filed: 1991-05-03
Abstract: An electrically powered iontophoretic delivery device (10, 20) is provided. The device (10, 20) utilizes electrodes (11, 12) composed of a polymeric matrix containing about 5 to 40 vol% of a conductive filler which forms a conductive network through the matrix, and about 5 to 40 vol% of a chemical species which is able to undergo either oxidation or reduction during operation of the device. Preferably, the conductive filler is carbon or graphite fibers. For the anode electrode, the chemical species should be able to undergo oxidation and is preferably either silver or zinc.      For the cathode electrode, the chemical species should be able to undergo reduction and is preferably silver chloride.
Patent CA-2045068-A1 (CA)
Title: T-carrier network simulator
Inventor: DARIANO MICHAEL A
IPC: G09B9/00
Filed: 1991-06-20
Abstract: T-Carrier Network Simulator Abstract of the Disclosure A  portable self-contained  T-carrier  network simulating device including multiple modules which are removably mounted and connected  and include a first customer premise simulation which includes an actual network smart jack and a repeater, a first T-carrier link  simulation which  provides  conductive  isolation between the ends thereof, bipolar violation removal and signal level change control to simulate a fiber link, a switching office simulation including an actual network digital signal cross-connect frame (DSX) and repeater, a second T-carrier link simulation which comprises wire T-carrier link simulation including an actual manhole repeater and line reversal device and also includes a simulation of bridge tap which is accessible from the front panel  to  simulate variation  in the effect of positioning of the bridge tap, and a second customer premise  simulation which  includes  an  actual  network smart jack and CPE jack.
Patent CA-2048583-A1 (CA)
IPC: G11B5/00
Filed: 1991-08-07
Abstract: A magnetic recording and reproducing apparatus using a recording medium made of a ferrimagnetic material, comprises a magnetic head having a width larger than that of an information recording track of the recording medium. For recording, light beams are radiated from a light source onto a selected information recording track to raise the temperature of the irradiated area to approximately a Curie temperature so as to allow recording only on that area. For reproduction,  light beams are radiated from another light  source  onto  areas on both  sides  of  a  selected information recording track to raise the temperature of the irradiated areas to approximately a magnetic compensation temperature so as to allow reproduction only from the desired track,  thus preventing crosstalk from the side tracks.
Patent CA-2053207-A1 (CA)
Title: Composite mailer form
Inventor: VIGNEAULT ANDRE
IPC: B42B2/02
Filed: 1991-10-10
Abstract: A composite mailer and a method of forming same.      The mailer has a front and a back panel interconnected together along the top, bottom and side edges thereof by glue edge portions to form an envelope. The side edges are glue bonded along an edge strip thereof. One of the top and bottom edges has a fold glue flap formed integral with one of the front and back panels and folded over and glued along an edge of the other of the front and back panels to form a reinforcing flap to provide increased rigidity to the envelope for handling thereof by automatic mail sorting machines. One or more information-carrying sheets are interposed between the front and back panels and each has a connecting end edge portion glued between a common edge portion of the front and back panels opposite the edge having the glue flap. The information-carrying sheets have their other edges spaced inwardly of the glue edge portions.      A perforated line is provided below the connecting end edge portion to form a tear tab to detach the connecting end edge portions to provide access to the interior of the envelope while simultaneously detaching the information sheet from the connecting edge portion for their removal from inside the envelope. The information-carrying sheets are individual sheets and some of these sheets have folded sections.
Patent CA-2056052-A1 (CA)
Title: Circuit for generating or demodulating a square wave and other wave forms
Inventor: TALMADGE PAUL C
IPC: H03K9/08
Filed: 1991-11-22
Abstract: CIRCUIT FOR GENERATING OR DEMODULATING A              SQUARE WAVE AND OTHER WAVE FORMS     ABSTRACT     A circuit for modulating or demodulating an input potential includes a first operational amplifier for receiving the input potential and a second operational amplifier for outputting an output potential. A resistor network is connected to the operational amplifiers. A switch with a first position and a second position is connected to the resistor network and to at least one of the operational amplifiers.  The circuit also includes a mechanism for repeatedly driving the switch between its first position and its second position.  When the switch is in its first position, the output potential equals the input potential.  When the switch is in its second position, the output potential equals minus one times the input potential.
Patent CA-2058659-A1 (CA)
Title: Cyclic hydraulic actuator
Inventor: DAVIES MICHAEL R
IPC: F01B7/18
Filed: 1991-12-31
Abstract: This invention relates to a cyclic hydraulic actuator, and more particularly to an actuator for a rock drill and includes: a housing; at least two chambers in the housing; a fluid passage between a first of the chambers and the outside of the housing for feeding a liquid at supply pressure to the chamber during operation of the actuator; a fluid passage between a second of the chambers and the outside of the housing for exhausting liquid from the second chamber during operation of the actuator; a piston reciprocable on an axis in at least the first and second chambers with the piston including an exposed piston area in each of the two chambers for causing, with the liquid at supply pressure, reciprocation of the piston; an inlet valve for opening and closing the second chamber to liquid at supply pressure in the first chamber;an exhaust valve for opening and closing the exhaust passage; the inlet and exhaust valves, chambers and exposed piston areas being so arranged that during cyclic operation of the actuator, when the inlet valve is closed and the exhaust valve is open, the piston is accelerated in one direction, and when the inlet valve is open and the exhaust valve is closed the piston is accelerated in the opposite direction; means on the piston for opening the inlet valve after closing the exhaust valve, means for closing the inlet valve independently of the exhaust valve, and means biasing the exhaust valve from a position in which it closes the exhaust passage to a position in which the exhaust passage is at least partially open once the inlet valve is closed irrespective of the position of the piston in the remainder of its first direction of acceleration, during the cyclic operation of the actuator.
Patent CA-2060257-A1 (CA)
Title: Monitoring and control of process streams at elevated temperatures
Inventor: ZBORIL VACLAV G
IPC: G01N27/416
Filed: 1992-01-29
Abstract: ABSTRACT OF THE DISCLOSURE            A method and apparatus for the monitoring and control of concentration of an ion in a solution at an elevated temperature of at least 100°C are disclosed.  The method comprises the steps of contacting a first electrode with a flowing first solution containing said ion at the elevated temperature,  and contacting a second electrode with a second flowing solution containing said ion at the elevated temperature.  The rate of flow of the second solution is substantially lower than the rate of flow of the first solution.    The  first  and  second  solutions  are  then contacted or admixed.  The electrodes must be capable of detecting the ion at the elevated temperature and have the same response characteristics to changes in concentration of the ion at the elevated temperature.  The concentration of  the  ion  in  the  second  solution  is  measured  at  a temperature  lower  than  the  elevated  temperature  under conditions   permitting   accurate  measurement   of   the concentration of the ion, and the concentration of the ion in the  first  solution  is monitored and controlled by adjusting the concentration of the ion in at least one of the first and second solutions.  The method is particularly adapted for the monitoring and control of salt solutions used is the manufacture of polyamides, using palladium hydride electrodes.
Patent CA-2060725-A1 (CA)
IPC: B27G19/02
Filed: 1992-02-05
Abstract: A feller head having a circular saw at the base thereof with a housing surrounding the circular saw,   and an  opening  in  the  housing  exposing the circular saw.   A movable guard can be rotated between an  open position  within the  housing  and  a  closed position where the guard extends across the opening protecting the circular saw.  The feller head also has a pair of grapple arms in the upper portion of the frame and an accumulator arm in the lower portion of the frame.
Patent CA-2067428-A1 (CA)
Title: Mechanism and Process to Extinguish Fires
Inventor: MARTINS DA SILVA FERNANDO
IPC: A62C3/06
Filed: 1992-04-28
Abstract: The present invention provides an apparatus and process to extinguish fires in oil wells by encircling the nucleus of the fire by creating a barrier of isolation of the fuel.  The apparatus expands gases in the gaseous and liquid states and directs such gases upon, under and around the nucleus of fire, encircling it at 360 degrees and isolating it completely from the atmospheric air, while at the same time causing the convenient cooling of the nucleus of fire, thereby avoiding any possibility of auto-ignition.  The process and apparatus of extinguishing fires in oil wells either in land or at sea, is also disclosed which uses a derrick type hoist, to place the apparatus around the fire, and to apply simultaneously a non-combustible gas in the liquid state (for example, carbon dioxide CO2 or bromochlorine-difluormetane, or nitrogen or any other commercially known gas like HALON 1211), and the same gas in the gaseous state.
Patent CA-2068935-A1 (CA)
Title: Air separator
Inventor: TYLER MIKE W
IPC: B07B4/00
Filed: 1992-05-19
Abstract: IMPROVED AIR SEPARATOR     ABSTRACT OF THE DISCLOSURE       An improved separator for use in separating aluminum and plastic articles from an entraining closed loop air stream includes an inlet duct emptying a high speed stream into an enlarged chamber.  The stream velocity is reduced by the chamber allowing articles to fall out through an air lock while the so-purged air stream is returned to the inlet of the closed loop blower for lifting plastic and aluminum away from the glass articles.  A porous conveyor may be used to further purge the air stream of very lightweight articles, such as paper articles and plastic film, bags and the like.
Patent CA-2069313-A1 (CA)
Title: Pyrimidine biosynthesis inhibitors useful as immunosuppressive agents
Inventor: ACKERMAN NEIL R
IPC: A61K31/12
Filed: 1990-10-22
Abstract: The pyrimidine biosynthesis inhibitors dichloroallyl lawsone, N-(phosphonoacetyl)-L-aspartic acid (PALA), pyrazofurin, and derivatives thereof, are useful as immunomodulatory and anti-inflammatory agents. Pharmaceutical formulations containing these compounds are useful for the treatment of autoimmune diseases, chronic inflammatory diseases, and of organ transplantation rejections.
Patent CA-2070313-A1 (CA)
Inventor: WEBER JAMES M
IPC: A61B19/02
Filed: 1992-06-03
Abstract: ABSTRACT OF THE DISCLOSURE             Disclosed herein is a surgical instrument transport tray for  handling,  moving,  sterilizing  and  storing wrapped instrument sterilization pans.  With the tray there is less risk of the wrapping being torn or otherwise breached after sterilization of the contents.   Without the tray,  the wrapping used to maintain the sterility of the contents is sometimes damaged, thereby necessitating the removal of the damaged wrap followed by rewrapping and re-sterilizing the pan and its contents.  The risk of such damage, increased cost and lost time are reduced by way of the present invention.
Patent CA-2073882-A1 (CA)
Title: Process and device for the manufacturing of an article equipped with a shaped rim
Inventor: CORNILS GERD
IPC: B29C48/155
Filed: 1992-07-15
Abstract: In order to fit a prefabricated article with a profiled strip, the surface is firstly pretreated and then an extruder (16) is fed with a thermoplastic elastomer. At the outlet of the extruder (16), a pressure-withstanding heating pipe (22) conveys the material to a heated extrusion head (8) which is guided to the surface of the article by a robot (4). Application to a motor-vehicle window (glazing article) (1) in order to fit it with a profiled frame (24) around the periphery. <IMAGE>