baber/WOPTO huggingface dataset:
Patent CA-2015615-A1 (CA)
Title: Display composition, coloring pigment, and recording material
Inventor: ITO KENGO
IPC: G02F1/1516
Filed: 1990-04-27
Abstract: Disclosed herein is a display composition which com-prises a dye and a clay mineral in which quaternary ammo-nium ions are bound between layers through ion exchange, said display composition undergoing reversible color development and color, fading through the oxidation and reduction of said dye, the oxidation causing said dye to form a color and to be bound between the layers of said clay mineral through ion exchange with said quaternary ammonium ions, the reduction causing the dye to discolor and to be desorbed out of the interlaminar space of the clay mineral and also causing the quaternary ammonium ions to be bound again between the layers through ion exchange.      Disclosed also herein are a coloring pigment and recording material which employ the display composition.
Patent CA-2016511-A1 (CA)
Title: Process for bottling liquid products which will contain fragrance oils
Inventor: HOLSTON SYLVESTER
IPC: B65B55/24
Filed: 1990-05-10
Abstract: Abstract of the Disclosure A process for packaging, especially bottling,a liquid product which will contain a fragrance oil or other material capable of adversely affecting a capping or other package closure operation if said oil or material came in contact with a mating sealing edge thereof, the process comprising sequentially filling the liquid product and fragrance oil or other material into a package, the fragrances oil or other material being added to said package in temporarily bound form.     [DR-5185]
Patent CA-2018237-A1 (CA)
Inventor: WRIGHT ANTONY P
IPC: C09D183/10
Filed: 1990-06-05
Abstract: The present invention relates to a silicone coating composition which, when cured on a solid substrate either by ultraviolet or electron beam radiation, provides a transparent abrasion resistant coating firmly adhered thereon. The silicone coating is prepared by reacting in a polar solvent solution at least one multifunctional acrylate monomer with an amino-organofunctional silane to form a Michael adduct and optionally adding an acid to the reaction mixture, and thereafter adding colloidal silica.
Patent CA-2019572-A1 (CA)
Title: Aerosol dispensing device
Inventor: BACON RAYMOND J
IPC: A61M15/00
Filed: 1990-06-21
Abstract: ABSTRACT                  Aerosol dispensing device An  inhalation-actuable  dispensing  device  is provided for dispensing a metered dose of medicament in aerosol form.   The device comprises a compartment (6) for receiving a metered dose aerosol container  (10) having an outlet tube (12) at one end.   The device has a storage chamber (13;   120) which receives a metered dose from the container.    The storage chamber  (13; 120) has an outlet which is closed by a valve member (44;   124) under the pressure of the dose within the storage chamber.    Inhalation by a user causes a dose releasing device  (34,  40, 46;   138-140)  to move the valve member to an open position.
Patent CA-2021054-A1 (CA)
Inventor: MITSUMAKI HIROSHI
IPC: G01N35/04
Filed: 1990-07-12
Abstract: ABSTRACT     An annular train of reaction vessels is formed on an intermittently rotatable turntable,  In order to measure test items requiring different analysis times, samples and necessary reagents are successively added to the reaction vessels.  The analysis times for the test items assigned to the respective reaction vessels are stored in association with positions or numbers of the reaction vessels.  Reactions for the test items requiring different analysis times proceed in parallel on the turntable.  The reaction vessel whose required analysis time has expired is renewed by a vessel renew device such as a washing device and prepared for receiving the next sample.  When a sample for a test item requiring a short analysis time is added to a second reaction vessel after a sample for a test item requiring a long analysis time has been added to a first reaction vessel, the second reaction vessel is renewed earlier than the first reaction vessel.
Patent CA-2022523-A1 (CA)
Title: Chemically modified cd4 peptide fragments having anti-retroviral properties
Inventor: LIFSON JEFFREY D
IPC: C07K14/73
Filed: 1990-08-02
Abstract: HAVING ANTI-RETROVIRAL PROPERTIES          ABSTRACT OF THE DISCLOSURE           A general method of derivitizing and selecting fragments of CD4 peptides that exhibit enhanced (relative to the original fragment) capacity to modulate a CD4-dependent virus-induced cellular response.  In one aspect, peptide compositions comprising a sequence of human CD4 which includes at least a core sequence of seven consecutive amino acids of the N-terminal proximal sequence or a sequence including the cysteine at position 84 (C84) are provided.  At least one amino acid side chain is derivatized, such as the cysteine at position 84 (C84) or the glutamic acid at position 85 (E85).  Various groups may be used as derivatizing groups, including aryl-containing substituents, or in the case of cysteine, a thioether resulting from the reaction between the thio group of the cysteine and a maleimide.  The resulting compositions may be used prophylactically or therapeutically for inhibiting interactions between CD4 and retroviral proteins.   87.
Patent CA-2023442-A1 (CA)
Title: Antenna array
Inventor: ORTON RICHARD S
IPC: H01Q3/26
Filed: 1990-08-16
Abstract: (figure 2) ABSTRACT      Antenna Array A  log  periodic antenna array, each  consisting  of e.g.  five  dipoles  D1  -  D5  are  each  driven  by  a transmitter  Tx  by an amplifier A and phase  shifter  5.          Each antenna  radiates generally from one dipole only for example  dipole D4.  The Applicants have discovered  that the antenna may  behave as if the radiation  appears  to emanate  from  the position marked with a  cross.   Probe antennas  P1  -  P3  are used  to  derive  error signals representing the difference between the expected relative phase  between  a  dipole  and a probe  antenna  and  the measured  relative phase between the dipole and the probe antenna,  which  error  signals are then  used  to  apply corrections to the phase shifters PS.
Patent CA-2029079-A1 (CA)
Title: Process for preparing polyolefin fluff having controlled morphology using metallocene catalysts
Inventor: HASPESLAGH LUC
IPC: C08F2/04
Filed: 1990-10-31
Abstract: Olefin polymers and copolymers having controlled morphology are prepared by bulk or slurry polymerization using metallocene catalysts in the presence of an alumoxane cocatalyst. Prepolymerization at a temperature of -10°C to +35°C during 1.5 to 3.5 minutes is immediately followed by polymerization at 55-70°C.      The fluff has a narrow grain size distribution, a smooth surface and a high bulk density.
Patent CA-2029674-A1 (CA)
Inventor: SAKAI KEIJI
IPC: G02B5/18
Filed: 1990-11-09
Abstract: The   method   of   manufacturing   an   optical diffraction grating element, in which a diffraction grating having a serrated profile is formed upon a glass substrate through an ion beam etching method,  is characterized in adopting an ion beam made from a gas chemically reacting with the glass substrate.   Also, when manufacturing an optical diffraction grating element that is divided into a plurality of regions wherein diffraction gratings having different diffraction angles with respect to an incident light are provided, the method of the present invention is characterized in forming slits into a resist film disposed upon a transparent substrate such as a glass substrate, in accordance with the patterns of the diffraction gratings, such that the width of the slits is constant irrespectively of the regions.  Accordingly, the method of manufacturing an  optical diffraction grating element of the present invention enables an improvement of diffraction efficiency of the optical diffraction grating element, and enhancement of the optical efficiency of an optical head device.  The SN ratio of the output signals released by the optical head device may be thus improved and the servo error control executed accurately.
Patent CA-2031116-A1 (CA)
IPC: B65H29/68
Filed: 1990-11-29
Abstract: To  perform  the  transformation  between  the  first succession of copies (5) travelling at high speed (V) on the first conveyor (7) without overlapping and the second succession of copies (5) travelling at low speed (v) on the second conveyor (8) overlapping like the scales of a fish,  the  conveyors (7,  8)  are  so  disposed that  the copies (5)  leaving the first conveyor (7)  land directly on the second conveyor  (8),  and slowing means  (9)  are provided to slow each copy (5)  arriving at the second conveyor  (7)  at  the  appropriate  time  using  a  pincer member (15) which is moving at said low speed (v) when it grips a copy.
Patent CA-2032215-A1 (CA)
Inventor: WYMAN JOHN E
IPC: C08J7/048
Filed: 1990-12-13
Abstract: ABSTRACT    A method of imubing polymer films as of polyethylene and polypropylene with gas, aroma, fragrance, flavor, grease and oil impermeable surface characteristics involv-ing coating the film with appropriate silane compounds and cross-linking the same while providing physical adsorption adherence to the film, and in sufficient coating micron thickness to produce gas and related barrier characteris-tics; with chemical grafting, including by eb techniques, further providing improved bonding.  Preferred barrier-coated polymer films with reduced haze and clarity are formed by such method.  The method is also useful to increase the barrier properties of organo-polymer films that already possess initial barrier characteristics.
Patent CA-2033793-A1 (CA)
Title: Dna sequence conferring a plaque inhibition phenotype
Inventor: BALLOU MARGARET M
IPC: C12N15/76
Filed: 1991-01-08
Abstract: Abstract The present invention comprises an ~0.8 kb Sac II restriction fragment of phage FP43, which confers the pin phenotype.  The present invention allows transduction at high m.o.i. using the phage FP43 high frequency transduction system.
Patent CA-2040495-A1 (CA)
Title: Bagging machine with bag holding transfer and stretch means
Inventor: LIPES ARNOLD
IPC: B65B51/14
Filed: 1991-04-15
Abstract: BAGGING MACHINE WITH BAG HOLDING                TRANSFER AND STRETCH MEANS                 Abstract of the Disclosure A  bagging  machine  comprising   an   article discharge chute for releasing one or more articles in an open bag held thereunder at a bag loading position.   A plurality of collapsed plastic bags are supported under and adjacent the discharge chute.   The mouth of an outer one of the plastic bags is opened with a bag opening clamp and the rear and front wall of the bag are held spaced  apart  so  as  to  receive  one  or  more  articles therein through the discharge chute.    Bag holding and stretching fingers grip  the bag at opposed upper side edge portions thereof whereby to transfer the first bag filled with the articles to a sealing station after the front and rear walls of the bag are detached from their bag opening securement.   At the filling station, a clamp engages the stretched rear and front walls together below the mouth opening and the rear and front walls together are sealed across the mouth opening above the clamp after release and removal of the bag holding and stretching fingers to effectuate a substantially crease-free seal entirely across the mouth opening of the bag.
Patent CA-2041176-A1 (CA)
Title: Method and circuit arrangement for reducing the loss of message packets that are transmitted via a packet switching equipment
Inventor: FOGLAR ANDREAS
IPC: H04L12/56
Filed: 1991-04-25
Abstract: ABSTRACT OF THE DISCLOSURE     In order to reduce the loss of message packets that are transmitted in the course of virtual connections in an asynchronous transmission method and which comprise a packet header identifying the respective virtual connection, the message packets being respectively augmented by a continuous auxiliary identifier and, after multiplication, being separately transmitted via redundant switching matrices of a packet switching equipment, it is provided that, with reference to the auxiliary identifier, only that message packet transmitted without fault as a first of the multiplied message packets and having an auxiliary identifier that is the next one following the most recently-transmitted message packet is forwarded. In addition, that switching matrix by way of which the transmission of message packets respectively occurs most slowly is identified and message packets that are transmitted via the respective slowest switching matrix as the first of the multiplied message packets are forwarded.
Patent CA-2041719-A1 (CA)
Title: Process for the enhanced production of silver from gold and silver bearing ore
Inventor: ROWSON JOHN W
IPC: C01B31/08
Filed: 1991-05-02
Abstract: A PROCESS FOR THE  ENHANCED PRODUCTION OF SILVER FORM GOLD AND                      SILVER BEARING ORE                     ABSTRACT OF THE DISCLOSURE      There is disclosed a process for recovering gold and silver values from ore using activated carbon for adsorbing the values, wherein the activated carbon is treated with a suitable oxidant having an oxidation potential higher than that of oxygen.   A preferred oxidant is potassium permanganate.  Activated carbon so treated has an enhanced affinity for adsorbing silver, even under conditions which traditionally have favoured loading of carbon with gold.
Patent CA-2041938-A1 (CA)
Title: Process and facility for producing gas-containing hydrogen from methanol
Inventor: DUPONT RENE
IPC: C01B3/32
Filed: 1991-05-07
Abstract: An installation composed of a reforming reactor (12) fed with a vaporised and superheated methanol-water mixture, a means of heating the liquid methanol-water mixture by thermal exchange (5) with the gaseous reforming mixture (56), a means of vaporisation and superheating of the said mixture heated by thermal exchange (23) with a heat-transfer fluid (51), a means of reaction of the said vaporised methanol-water mixture by thermal exchange (28-29) also with the said heat-transfer fluid (31-32), means of separation (75) of the water from the reforming mixture by cooling and partial condensation (61-63-64), and means of producing pure hydrogen releasing combustible wastes, means of heating (15) the heat-transfer fluid (31-32) by combustion (15), especially of the combustible wastes, characterised in that the means of thermal exchange and means of heating the heat-transfer fluid are all situated at the periphery of the same enclosure which forms both combustion chamber (12) and reforming reactor (28-31) (29-32). 
<IMAGE>
Patent CA-2042849-A1 (CA)
Title: Curve approximation algorithms for rapid decomposition of outlines
Inventor: PRASAD BINDIGANAVELE A
IPC: G06T11/20
Filed: 1991-05-17
Abstract: ABSTRACT A faster method of generating a set of approximating outlines in the form of parabolic curves or straight lines from the original computer generated graphics which may be in the form of cubic splines, conics, circular arcs, etc. A two-step process is used. First, the number of approximating parabolas that will be required to the desired level of accuracy is determined, using a non-recursive mathematical equation. Second, The actual parabolas are generated using a simple stepper algorithm.
Patent CA-2043230-A1 (CA)
Inventor: BOYCHUK PETER
IPC: A47J36/02
Filed: 1991-05-24
Abstract: A cake pan is formed from a flat wooden base and upstanding  sides  formed  into  a  rectangular  receptacle  for receiving  a paper  liner  folded  from  a single sheet of wax paper.   The sides are formed from four panels of wood coupled together at right angle corners with the base slightly larger than the interior dimension of the frame so that the base can receive the whole of the frame.  The use of wood for the sides and base surprisingly provides an improved baking process which allows  more  even  cooking  and  a  better  consistency  in the product.
Patent CA-2043486-A1 (CA)
Title: Self-adhering chaplet
Inventor: SCHERER JOHN R
IPC: B22C21/14
Filed: 1991-05-29
Abstract: ABSTRACT OF THE DISCLOSURE A chaplet having an adhesive layer formed thereon for positioning a core within a mold during a molten metal casting operation is disclosed.  The chaplet includes a body portion which is preferably formed from a material which is vaporizable upon contact by molten metal, such as expanded polystyrene.  The adhesive layer is preferably covered with a removable release liner, such as paper.  The chaplet may be formed having a plurality of surfaces, each of which is covered by an adhesive layer and a release liner.
Patent CA-2043535-A1 (CA)
Title: Hybridoma and production of biologically active substance
Inventor: SAWADA HIDEKAZU
IPC: C12N15/09
Filed: 1991-05-30
Abstract: TITLE: HYBRIDOMA AND PRODUCTION OF BIOLOGICALLY ACTIVE       SUBSTANCE              ABSTRACT OF THE DISCLOSURE      Disclosed are (1) a hybridoma carrying a vector for expressing a fibroblast growth factor (FGF) protein gene;          (2) a method for producing the hybridoma of (1) which comprises transforming a hybridoma with the vector for expressing the FGF protein gene; and (3) a method for producing a biologically active substance which comprises cultivating in a culture medium the hybridoma obtained by the method of (2) using a hybridoma producing a biologically active substance other than the FGF protein, producing the FGF protein and producing and accumulating the biologically active substance in a culture, and recovering the biologically active substance, whereby the biologically active substance can be efficiently produced and recovered using the serum-free medium, which is advantageous for industrial production and very useful for an improvement in the breeding of the hybridoma.
Patent CA-2043788-A1 (CA)
Title: Movable article having expanding-contracting and revolving motion
Inventor: SATOH YASUTA
IPC: A63H29/00
Filed: 1991-06-03
Abstract: ABSTRACT OF THE DISCLOSURE       A movable article capable of exhibiting a unique and complicated motion sufficient to attract a viewer.  A motor is driven depending upon detection of sound by a sensor switch, so that the movable article may carry out a linear expanding-contracting motion in the vertical direction while simultaneously carrying out a revolving motion about a vertical axis.
Patent CA-2044354-A1 (CA)
Inventor: DESHPANDE NARAYAN V
IPC: B41J2/05
Filed: 1991-06-11
Abstract: A thermal ink jet printhead is disclosed having an ink channel geometry that controls the location of the bubble collapse on the heating elements. The ink channels provide the flow path between the printhead ink reservoir and the printhead nozzles. In one embodiment, the heating elements are located in a pit a predetermined distance upstream from the nozzle. The channel portion upstream from the heating element has a length and a cross-sectional flow area that is adjusted relative to the channel portion downstream from the heating element, so that the upstream and downstream portions of channel have substantially equal ink flow impedances. This results in controlling the location of the bubble collapse on the heating element to a location substantially in the center of the heating elements.
Patent CA-2046471-A1 (CA)
Title: Thermally activated vent damper
Inventor: KARABIN TADEUSZ
IPC: G05D23/08
Filed: 1991-07-08
Abstract: A thermally activated vent damper assembly  for a flue is adapted to be situated in relation to the flue for occluding the passage of gas through the flue.  A support member traverses the flue and suspends the damper member across the flue for movement between an open and a closed position.    A  thermally  activated  biasing  member  is operatively  coupled  between the  support member and the damper  member  to  bias  the  damper  member  in  the  open position in the presence of heat and to bias the damper member in the closed position in the absence of heat.  The coupling of the biasing member between the support member and the damper member is such that potential sites for frictional  inhibition  of  damper  member  movement  are eliminated.  Upon breakage or other failure of the biasing member to apply bias,  the damper member defaults to or remains in an open position under the force of gravity, providing for a unique fail-safe feature.
Patent CA-2047324-A1 (CA)
Inventor: RHEN DENNIS
IPC: B61F5/14
Filed: 1991-07-18
Abstract: A side bearing for a railway truck and car body assembly includes a compliant bearing disposed within a cavity defined by a housing of the assembly.  The compliant bearing includes a pair of elastomeric bearing elements each having a generally upwardly facing surface portion.  The compliant bearing also includes a unitary rigid friction element engageable with the bearing element surface portions and extending upwardly therefrom.  The friction element has a bearing surface disposed vertically above the housing walls for frictional engagement with a wear plate.          A rigid elongated spacer is disposed within the cavity and has an upwardly facing surface as well as an upstanding abutment which is cooperable with at least some of the cavity walls to confine the elastomeric bearings within the cavity.   A rigid bearing supported on the upwardly facing surface of the spacer is movable thereon in opposed directions within predetermined limits.  The rigid bearing is of an overall vertical height that, when supported on the spacer surface with the spacer disposed within the cavity the rigid bearing has an uppermost extent above the upper edges of the housing.  The elastomeric elements are vertically deformable in compression and have an overall vertical height at the bearing surface of the rigid friction element is disposed vertically above the uppermost extent of the rigid bearing so as to maintain a vertical spacing between the rigid bearing and the wear plate throughout a range of vertically downwardly directed loadings applied to the compliant bearing, and to permit the wear plate to engage the rigid bearing when the vertically downwardly directed loading equals a given load.
Patent CA-2048685-A1 (CA)
Inventor: MORIZONO TOSHIAKI
IPC: H04L12/46
Filed: 1991-01-25
Abstract: Système de communication entre des réseaux locaux (LAN) de différents types, constitué d'un LAN principal (1) et d'un certain nombre de LAN secondaires (7,7') connectés audit LAN principal (1) au moyen d'un noeud (2A, 2B, 2C, 2D). Une trame de LAN secondaire (30) transmise à partir d'un terminal (8, 9, 10, 15, 18, 21) est incorporée à une trame du LAN principal à l'intérieur du noeud (2A, 2B, 2C, 2D); l'adresse du noeud voisin en aval est alors communiquée à la trame du LAN principal (40), et ainsi, la trame du LAN principal (40) est transmise au moyen du LAN principal (1). Lorsque l'adresse contenue dans la trame du LAN principal correspond à la sienne, chaque noeud (2A, 2B, 2C, 2D) sépare la trame du LAN secondaire (30) de la trame du LAN principal (40). -53-
Patent CA-2048838-A1 (CA)
Title: Zirconia-molybdenum disilicide composites
Inventor: PETROVIC JOHN J
IPC: C01B33/06
Filed: 1991-08-08
Abstract: ZIRCONIA-MOLYBDENUM DISILICIDE COMPOSITES     ABSTRACT Compositions   of   matter   comprised   of   molybdenum disilicide  and  zirconium  oxide  in  one  of  three forms: pure,  partially stabilized, or fully stabilized and methods of  making  the  compositions.    The stabilized zirconia is crystallographically  stabilized  by  mixing it with yttrium oxide,  calcium  oxide, cerium oxide, or magnesium oxide and it may be   partially stabilized  or  fully  stabilized depending   on  the  amount  of  stabilizing agent  in  the mixture.