baber/WOPTO huggingface dataset:
Patent CA-2057828-A1 (CA)
Title: Cytotoxic t lymphocyte-inducing lipopeptides and use as vaccines
Inventor: BOUTILLON CHRISTOPHE
IPC: A61P31/12
Filed: 1991-12-17
Abstract: Cytotoxic lymphocyte-inducing lipopeptides com-prising a peptide part having between 10 and 40 amino acids approximately and comprising at least one antigenic determinant. The lipopeptides also comprise one or more chains derived from fatty acids and one or more modified steroid groups.     Said lipopeptides may be used for immunizing the human or animal body against pathogenic agents such as viruses or parasites. The peptide part may, in particular, be a fragment of the protein encoded by the ENV gene of HIV viruses, in particular the 312-327 fragment or the 302-336 fragment of this protein.
Patent CA-2062258-A1 (CA)
Inventor: EBINUMA TAKAO
IPC: E21B43/01
Filed: 1992-03-04
Abstract: ABSTRACT OF THE DISCLOSURE    A method for dumping carbon dioxide gas into the ground of the sea bottom comprises injecting carbon dioxide gas into the ground of the sea bottom to fix the carbon dioxide gas in the ground of the sea bottom.   A method for dumping carbon dioxide gas into the ground of permafrost regions comprises boring a well and injecting carbon dioxide into the ground to fix carbon dioxide in the ground.   A method for recovering and consuming natural gas found in the ground of permafrost regions with low pollution comprises exploiting and consuming hydrate of natural gas present in permafrost regions to produce carbon dioxide as a by product and injecting the carbon dioxide by-product into the ground of permafrost.  A method for gathering natural gas by using dumped carbon dioxide gas as a heat generating source comprises injecting carbon dioxide gas or liquefied carbon dioxide gas into layers of hydrate of natural gas present in the ground of the sea bottom or in permafrost regions.  An apparatus for gathering natural gas by using carbon dioxide gas as a heat generating source comprises an injection pipe for injecting carbon dioxide, a pressure injection apparatus for injecting carbon dioxide, a gathering pipe for gathering a mixed gas containing natural gas separated from the layers of hydrate of natural gas and carbon dioxide and a gas separator for separating natural gas from the gathered mixed gas.
Patent CA-2062896-A1 (CA)
Inventor: MERCER FRANK B
IPC: E02B3/12
Filed: 1992-03-12
Abstract: Abstract A starting material is provided having a rectangular grid of holes and the starting material is stretched in the MD to such an extent that the junctions are not significantly oriented, is stretched in the TD to such an extent that the junctions are not significantly oriented, and is finally stretched in the MD to such an extent that the junction centres thin down by at least 30% and there is significant narrowing down of the junction.  The resultant MD stretch is substantially greater than the resultant TD stretch.  The MD strands, having thinned down and oriented to a substantial degree, cause the orientation to pass into the ends of the junctions and right through the junctions.  The junctions increase in length by a ratio of at least about 2.5:1 and narrow down substantially.  The ends of the junctions are not stretched more than 100% more than the centres.  At each junction there is a thicker, parallel-sided, long zone which is oriented in the MD and has thinned down less than the mid-points of the MD strands so that there is continuous MD orientation running from end to end of the mesh structure.  There are no dips in the junctions and the centres of the junctions are not substantially thinner than any other part of the junction on the MD centre line.  There are biaxially-oriented zones on either side of the thicker zones, and oriented crotches connecting respective MD strands and TD strands, the biaxially-oriented zone merging gradually with the crotches.
Patent CA-2066705-A1 (CA)
Title: Instrumentation amplifier with automatic gain control
Inventor: OLKKONEN HANNU
IPC: H03G3/12
Filed: 1990-09-26
Abstract: This invention concerns an instrumentation amplifier capable of implemenating automatic control means for the gain of an amplifier (1), which can further be read as the value of the set gain in conjunction with the readout of the amplifier output voltage. The amplifier uses parallel feedback resistors (3) of which only one at a time is connected. The selection is performed on the basis of comparison of the output voltage against a reference voltage level (6, 7). An up/down counter is used to monitor the result of the comparison and to control a multiplexer (2) that connects the resistors (3) over the amplifier (1). The amplifier is best suited to measurements in which multiple low-cost amplifiers must be used and the amplitude of the incoming analog signal varies by several orders of magnitude.
Patent CA-2071498-A1 (CA)
Inventor: BRIDGE ANDREW W
IPC: A61P3/06
Filed: 1990-12-11
Abstract: Imidazole derivatives of formula (I) wherein A represents methylene or a group -CH2-A'-CH2- wherein A' represents a direct bond, linear alkanediyl, alkenediyl or alkynediyl, hydroxymethylene, or optionally substituted phenylene; R1 and R2 each represents hydrogen, halogen, alkyl, alkoxy, alkylthio, alkylamino, carboxy or alkoxycarbonyl; a and b are 0, 1 or 2; and Het represents a heterocyclic group containing from 5 to 7 ring atoms chosen from carbon, nitrogen, sulphur and oxygen atoms, and salts thereof are inhibitors of acyl coenzyme-A: cholesterol-O-acyl transferase useful for the treatment of conditions such as atherosclerosis, hyperlipidaemia, cholesterol ester storage disease and atheroma in vein grafts.
Patent CA-2072330-A1 (CA)
Title: Magnetic recording medium and a method of fabricating the same
Inventor: SATO KENICHI
IPC: G11B5/72
Filed: 1992-06-25
Abstract: ABSTRACT OF THE DISCLOSURE     A magnetic recording medium comprises a nonmagnetic support; a magnetic metal thin film formed on one major surface of the nonmagnetic support; and a protective film consisting of a corrosion-resistant protective film of a corrosion-resistant metal or a protective film of a multi-layer structure consisting of at least one corrosion-resist-ant protective film of a corrosion-resistant metal and one durable protective film of a hard material.  A sputtering process of forming the protective film of a multilayer structure consisting of at least one corrosion-resistant protective film and one durable protective film over the magnetic metal thin film formed on the nonmagnetic support traveling along the circumference of a cooling cylinder uses at least one target of a corrosion-resistant metal and at least one target of a hard material, or a composite target composed of at least one corrosion-resistant metal and one hard material.  The protective film suppresses the corrosion of the magnetic metal thin film and improves the corrosion resistance and durability of the magnetic recording medium.          The method of fabricating the magnetic recording medium can be carried out without requiring the modification of an existing manufacturing line, enables the fabrication of the magnetic recording medium at a high productivity and is of high industrial utility.
Patent CA-2074348-A1 (CA)
Inventor: CADY SUSAN M
IPC: A61K9/16
Filed: 1992-07-21
Abstract: The invention relates to cartels stable microsphers compositions containing a fat or was or mixture thereof: an active ingredient selected from LL-F28249.alpha.-.lambda. compounds, 23-oxo and 23-imino derivatives of LL-F28249.alpha.-.lambda. compounds, milbemycin compounds and avermectin compounds; an oil, semi-soft fat, fatty acid derivative or mixture thereof; and an antioxidant. The invention also relates to a method for introducing and maintaining levels of the active compound in the blood of warm-blooded animals for extended periods of time and for the prevention or treatment of infections and infestations caused by helminths, nematodes, acarids and endo- and ectoparasitic arthropods in warm-blooded animals by the parenteral administration of compositions of the invention.
Patent CA-2076776-A1 (CA)
Title: Orthodontic device for expansion of arches with imbedded wire
Inventor: BERGERSEN EARL O
IPC: A61C7/08
Filed: 1992-08-25
Abstract: A tooth positioner which is formed out of molded plastic to conform about arches defined by upper and lower rows of teeth, the positioner being generally U-shaped in plan and H-shaped in cross-section, the positioner having troughs sized and shaped to conform to the arches, the troughs being defined by lingual and labial-buccal flanges joined together by an isthmus including a wire embedded in the lingual flange to alter the shape of at least one of the arches.
Patent CA-2077160-A1 (CA)
Title: Subscriber line interface circuit with differential voltage sensing and compensation
Inventor: MOISIN MIHAIL S
IPC: H04M19/00
Filed: 1992-08-28
Abstract: Abstract SUBSCRIBER LINE INTERFACE CIRCUIT WITH DIFFERENTIAL          VOLTAGE SENSING AND COMPENSATION           A Line Interface Circuit (Figure 1) for connection to a telephone line at TIP and RING terminals (2, 3), the circuit having d.c. feed TIP and RING feed amplifiers (20, 30) for controlling energizing direct current via the telephone line, TIP and RING feed resistors (21, 31) connected between the TIP and RING terminals and the TIP and RING feed amplifiers respectively, TIP and RING taps (23, 33) coupled between the TIP and RING feed resistors and the TIP and RING feed amplifiers respectively, a line a.c. terminating impedance means connected between the TIP and RING taps, and a differential amplifier (50) having differential inputs coupled respectively to the TIP and RING taps and having an output coupled to inputs of the TIP and RING feed amplifiers.  The circuit provides longitudinal impedance balance between the TIP and RING terminals without requiring matching TIP and RING feed resistors, The circuit also produces a high degree of independence between the a.c. and d.c. terminating impedances and provides a.c. transmission performance which is independent of d.c. energizing current, the circuit suitable for ON-HOOK transmission applications such as telemetering of subscriber terminal equipment.
Patent CA-2078466-A1 (CA)
Inventor: KUO ELIZABETH A
IPC: A61P37/00
Filed: 1992-09-17
Abstract: The invention relates to new 3-cycloalkyl-2-propenamide derivatives of formula (I): 
<IMAGE>
 in which 
 
  R1 represents H or (C1-C3)alkyl, 
  W represents O or optionally oxidised S, 
  Y and Z represent -CH- or one of Y and Z represents -CH and the other represents N, 
  R2, R3, R4, R5 and R6 represent H, halogen, (C1-C4)alkyl, - OCH3, -SCH3, -WCF3, NO2, CN, -W(CH2)n-CF3, -W(CF2)n-CF3 , -(CH2)n-CX3 or -(CF2)n-CF3, in which n is 1, 2 or 3 and X represents halogen or R3 and R4 together form -O-CH2-O-, 
  R7 and R8 represent H or (C1-C6)alkyl, 
  R9 represents (C3-C6)cycloalkyl, 
 to their tautomeric forms and to their addition salts with bases, as well as to their process of preparation, to their application as medicaments and to the compositions which contain them.
Patent CA-2079297-A1 (CA)
Inventor: LOGAN ERNEST F
IPC: A61D9/00
Filed: 1992-09-28
Abstract: A surgical slipper for cleft footed animals in either left or right claw configuration comprising a sole (3) and upper (1,2) which together define a cavity into which one claw of the cleft footed animal is, in use, fitted, and a lattice (4) in the form of an array of intersecting ribs projects from the underside of the sole. The ribs are thick enough to hold the claw away from the ground and the sole is arranged to be thin enough in voids between the ribs so that a hole can be readily punched for drainage purposes.
Patent CA-2082240-A1 (CA)
Title: Process for the fabrication of a composite moulded product
Inventor: BOISSONNAT PHILIPPE
IPC: B29C48/285
Filed: 1992-11-05
Abstract: Prod. comprises a thermoplastic organic material; e.g. polypropylene, polyamide or polyester; with fibre reinforcement eg. glass fibre; mineral and organic additives is made by moulding extrusion or injection from material supplied from an extruder where at least part of the organic material is fed in the form of strands or continuous filaments. The organic material and reinforcing fibres may be fed at the same or via two different feed entries, also the input may be a continuous filament which itself is a composite of reinforcement and organic material.
Patent CA-2083500-A1 (CA)
Title: Sigma binding site agents
Inventor: ERICKSON RONALD H
IPC: A61P25/18
Filed: 1991-06-04
Abstract: ABSTRACT                           (I) Sigma binding site agents having formula (I), which are useful to inhibit sigma binding site-induced activity, pharmaceutical compositions including these agents,  and methods of using these agents to inhibit sigma binding site-induced activity in mammals.  Also disclosed are novel intermediates useful in preparing the presently invented agents.
Patent CA-2083929-A1 (CA)
Inventor: CARGNEL GIUSEPPE
IPC: D06F37/26
Filed: 1992-11-26
Abstract: A plastic washtub used preferably in household clothes washing machines having a rigid structure (1) formed by a cylindrical wall (2), a circular bottom wall (3), and a circular front wall. A hub (6) is inserted through the central part of the bottom wall. It is called a hub because it is inserted into a central circular hub-housing (7) of the bottom wall (3) and supports the central shaft (11) of the rotor (8) in a known manner. This hub-housing's central portion (7) has around and adjacent to it one or more closed, empty chambers so that the hub-housing (7) does not enter into contact with the washing liquid. It is preferred that, inside the tub, said hub-housing (7) be protected by a plate (15), preferably of plastic, which is attached to ribs on the bottom wall to prevent the washing liquid from directly contacting the hub-housing.
Patent CA-2086828-A1 (CA)
Title: Closure with irreversible color change system
Inventor: HEILMAN ROBERT J
IPC: B65D41/04
Filed: 1991-07-03
Abstract: This relates to a color change system to be incorporated in a flexing area of an end panel of a closure (10). The color change system includes a dark background coating (40) on a flexing portion (28) of the closure end panel (12) to which there is bonded by way of an adhesive such as a varnish, ink or coating a brittle layer (44) which due to the flipping action of the flexing portion of the end panel will fracture. The brittle layer is preferably of a tight color and is colored utilizing a fluorescent dye. The combination of the background color and the fluorescent color of the brittle layer produces a first color in the original closure and when the end panel flexes and the brittle layer fractures to not only crack but also tear apart or delaminate from itself, to ref-lect its own light color much more brilliantly, the color of the color change system drastically changes to indicate tampering. This color change is irreversible. The color change system may also include a message indicia.
Patent CA-2088190-A1 (CA)
Title: Pizza Oven
Inventor: NEVIN IRA
IPC: A21B1/26
Filed: 1993-01-27
Abstract: An oven for pizza and other baked goods includes auxiliary heating means positioned in the baking chamber.      By designing the auxiliary heater to simulate a burning log viewable through the baking chamber access door, the ambience of a wood burning oven is presented to customers.      By control of activation of the auxiliary heater, faster responsiveness and improved control of baking chamber heating is achieved, resulting in improved quality control of baked goods and significantly faster baking times for increased efficiency. By provision of a front central exhaust vent, the need for an oven door is avoided.
Patent CA-2090254-A1 (CA)
Title: Dust collection
Inventor: STIRM MICHAEL
IPC: B24B31/12
Filed: 1993-02-24
Abstract: ABSTRACT               IMPROVEMENTS IN DUST COLLECTION           A  dust collection bag 1 for a power tool comprises a box-like container 10 which is separable into two parts 11, 12 along a plane of the box-like container and the interfitting portions 13, 14 of the two parts are rigid. One part 11 which is suitably a rigid plastics moulding has means 15 for connecting the container to the power tool outlet and the other part 12 has at least part of its wall surface formed of filter material 12a.  The parts 11, 12 may be hinged together 16 and have connection means 17, 18 for releasably connecting them to close the container (Figure 1).
Patent CA-2095115-A1 (CA)
Title: T-cadherin adhesion molecule
Inventor: RANSCHT BARBARA
IPC: C07K16/00
Filed: 1991-10-30
Abstract: The invention provides substantially purified T-cadherin polypeptides and isolated nucleic acids which encode the T-cadherin polypeptides. Antibodies reactive with various forms of T-cadherin, but not reactive with N-, E- or P-cadherin are also provided. The invention provides methods for detecting the various forms of T-cadherin in a subject as well as a method of inhibiting tumor cell migration which consists of increasing tumor cell adhesion with an effective amount of T-cadherin. A method of repairing traumatized neurons is provided. The method entails treating traumatized neurons with a therapeutically effective dose of T-cadherin.
Patent CA-2099207-A1 (CA)
Title: Tubing and humidification systems
Inventor: TURNER MARK W
IPC: A61M16/04
Filed: 1993-06-25
Abstract: ABSTRACT OF THE DISCLOSURE   A patient breathing device such as a tube or face mask is often connected to a humidifier by flexible, corrugated tubing. In the present invention the tubing has an outer uncorrugated tube extending along its length that traps air between the corrugations so as thermally to insulate the tubing and reduce condensation.
Patent CA-2100654-A1 (CA)
Title: Diamondoid polymeric compositions
Inventor: CHAPMAN ORVILLE L
IPC: C08G61/00
Filed: 1991-02-12
Abstract: A polymeric composition comprises at least one monomer which has the structure of diamantane, triamantane or a higher adamantalog and which is bonded through at least one double bond extending through a methylene position of said monomer.
Patent CA-2102050-A1 (CA)
Inventor: VITA GIANDOMENICO
IPC: D01F6/32
Filed: 1993-10-29
Abstract: A multifilament yarn of a thermoplastic polymer based on tetrafluoroethylene, having high mechanical strength and dimensional stability at high temperatures (200-250°C), is prepared by melt extrusion through a die characterized by a hole density comprised between 10 and 150 holes/cm2 and pro-vided with a cooling system of the emerging yarn of high effi-ciency and uniformity. The multifilament yarn can be subsequently drawn to obtain a fiber with even further improved tensile strength and modulus.
Patent CA-2103627-A1 (CA)
Title: Variable frequency electronic ballast of high power factor and stabilized output voltage
Inventor: WEI-QUN CHEN
IPC: H05B41/14
Filed: 1993-08-09
Abstract: ABSTRACT OF THE DISCLOSURE      The  present  invention  relates  to  a  variable frequency electronic ballast of  high power-factor and stabilized  output-voltage  which is  used  for  fluorescent lamps  and  other  gas discharge lamps.   A rectifying  circuit changes input AC  power voltage  to full-wave  rectified   pulsating  DC  voltage.    A voltage-controlled  oscillator  is  used   to  produce  a  high-frequency signal and the variation of the frequency is  based on the  pulsating  DC  voltage.    The  high-frequency  signal   is amplified in the driving  circuit to drive an electronic switch. The electronic  switch inverts the pulsating  DC voltage into  a variable  high-frequency square-wave  voltage, but  this voltage still  pulsates  with  the  pulsating  DC  voltage.    Then  the variable high-frequency  square-wave  voltage  passes through  a resonant  circuit to  become a   constant-amplitude wave voltage and supplies a constant power to  lamp.  Because the  system can operate  in the  condition of  variable voltage,  the rectifying circuit  does  not  need  a big volume  filter  capacitor,  the distortion  of  input current  waveform  is  decreased, and  the power-factor is increased.   Moreover, the power at the lamp  is a  constant  value when  input  voltage  changes, therefore  the system has an equivalent stabilized output-voltage.
Patent CA-2105464-A1 (CA)
Title: Methods for the continuous deposition of semiconductor thin films
Inventor: SHI SHAOLIN
IPC: H01L31/032
Filed: 1993-09-02
Abstract: METHODS FOR THE CONTINUOUS DEPOSITION               OF SEMICONDUCTOR THIN FILMS               ABSTRACT OF THE DISCLOSURE      The present invention describes  methods for the continuous deposition of semiconductor thin films. A flexi-ble, conducting ribbon is partly immersed in an electrolyte containing ions or complexes of the elements to be deposit-ed. A voltage is applied between the ribbon and an anode, which is also immersed in the same electrolyte. The ribbon is fed so that the semiconductor thin film deposition is achieved in a continuous manner. Methods to achieve the desired compositional depth profile and uniform average elemental composition are described. The present methods may be advantageously used for low cost and large area semiconductor device fabrication.
Patent CA-2108072-A1 (CA)
Title: Secure event tickets
Inventor: COE ROBERT P
IPC: B44F1/12
Filed: 1993-10-08
Abstract: ABSTRACT OF THE DISCLOSURE      Tickets for concerts, conventions, sports, and like events, have a security feature to assist in preventing counterfeiting.  A stretchable security thread is disposed in a piece of paper stock extending so that it intersects, with portions lying on either side of, a line of separation in the piece of paper stock (and/or is parallel to the length of the ticket).  The line of separation typically is a perforation.  The security thread is a stretchable material, such as polyester, and may have microprinting.  When the ticket is detached at the line of separation, the security thread does not initially separate but rather stretches to provide a visual (and tactile) indication between the separated portions of the paper stock before it breaks.  Such tickets are produced from a web of material having the security threads, which web is printed, and then cut into sheets for delivery to a customer who then can apply variable printing.  If making perforations, care is taken not to make a perforation gap at the intersection of a security thread with a line of separation.
Patent CA-2109940-A1 (CA)
Inventor: CORBETT KEVIN M
IPC: G01N33/483
Filed: 1992-06-11
Abstract: A method is provided for auto-positioning auto-focusing reaction wells for optically imaging purposes within a programmable random access automated apparatus for performing assays wherein the apparatus includes a reaction cartridge (10) having a plurality of reaction wells requiring precision location of the reaction wells (16) within an image allowing accurate transfer of the optical images to a logic system for analyzing the optical information. The optical imaging system (185) provides a generated visual indication of the results of the assays being performed. A micro processor is provided to assist in the operation of the apparatus as well as the imaging processing.
Patent CA-2110322-A1 (CA)
Title: Choke
Inventor: ERMAN LESLIE E
IPC: E21B34/00
Filed: 1993-11-30
Abstract: A choke for controlling fluid flows in oil wells has a choke body with a cylindrical inner chamber and two discs in the chamber. One of the discs is stationary and has a fixed bore through it. The other disc rotates and has a series of bores of different sizes. The bores are all spaced the same radial distance from the axis of the chamber so that as the rotary disc is rotated, the various bores are brought into axial alignment with the bore in the fixed disc. This use of multiple bores and their alignment with the fixed bore reduces turbulence in the choke and consequently wear on the choke and the downstream piping.