baber/WOPTO huggingface dataset:
Patent CA-2087722-A1 (CA)
Title: Systeme d'authentification pour reseau de communication cellulaire numerique
Inventor: DENT PAUL W
IPC: H04L9/06
Filed: 1991-07-18
Abstract: Système d'authentification de stations mobiles et de stations de base dans un réseau de télécommunications cellulaires. Le système comprend un algorithme qui, à la suite d'une interrogation aléatoire, génère non seulement une réponse dépendant d'une clé, mais aussi une clé temporaire pour la conversation ou une variable d'appel, qui peut servir à chiffrer le trafic du réseau. Pour se protéger contre des clones dans le réseau, l'algorithme se sert d'une clé à codage roulant qui contient de l'information antérieure. Une procédure d'authentification bilatérale peut être utilisée pour mettre à jour la clé et pour générer une nouvelle clé pour la conversation.
Patent CA-2092027-A1 (CA)
Title: Operating mechanism usable with a vacuum interrupter
Inventor: WAINIO RONALD A
IPC: H01H33/666
Filed: 1993-03-19
Abstract: An operating mechanism for producing controlled linear motion includes means for producing a dynamic motive force, and at least one static energy storage means including means for releasing said static energy within controlled parameters to thereby carry out the function requiring said controlled linear motion. The controlled linear motion is utilized e.g. to open and close electrical contacts and to provide a consistent high force required up to and at contact separation. Contact rebound after opening or contact separation is controlled within predetermined parameters.
Patent CA-2094725-A1 (CA)
Inventor: BROWN JOHN E
IPC: C22C12/00
Filed: 1991-10-18
Abstract: A firearm bullet, at least a major portion of which is formed of a one-piece element having a continuous all-metal structure primarily made up of bismuth or a bismuth alloy.
Patent CA-2096694-A1 (CA)
Title: Vessel level sensor mounting structure with positive mechanical lock
Inventor: JOHNSON TERENCE C
IPC: G01F23/296
Filed: 1993-05-20
Abstract: ABSTRACT OF THE DISCLOSURE A  mounting  structure  is  provided  which  is particularly adapted for holding a level sensor in place at an opening on vessels containing pressure above or below the ambient pressure.   First and second fitting members are provided which are installed on the vessel at the opening provided thereon.  The level sensor is releasably  attached  to  the  second  fitting  member positioned on the exterior of the vessel so it is in communication with the interior of the vessel.   The first and second fitting members are mechanically locked together so that the vessel wall is held captive between the fitting members.  The mounting structure provides a positive mechanical lock between the vessel and the level sensor ensuring that the level sensor will not be blown out of, or sucked into, the vessel even if the fluid tight seal between the mounting structures fails.     a:?427.pat
Patent CA-2098149-A1 (CA)
Inventor: NICHOLS JOHN W
IPC: B21D43/18
Filed: 1993-06-10
Abstract: Compliance apparatus, for gripping and transporting workpiece sheets such as appliance door blanks to be formed to and from a work station having precision locator sheet stop surfaces, is mounted on a carrier for travel in a generally horizontal path toward the work station.  The compliance apparatus includes a plurality of generally horizontally spaced apart, workpiece-aligned suction grippers for collectively gripping the top surface of a workpiece sheet.  Resilient mechanism connecting each of the grippers to the carrier provides for relative individual lateral movement of the sheet carrying grippers from neutral positions to positions displaced therefrom in any required direction, as dictated by the sheet engaging one of the locator sheet stop surfaces and being forced to a correctly aligned position in engagement with the other locator sheet stop surface as the carrier moves in its said path of travel.          The resilient mechanism restores each gripper to original neutral position when the workpiece leaves the work station and normally maintains it in neutral position.
Patent CA-2098556-A1 (CA)
Title: Extensible handle bag apparatus
Inventor: DAVIS TOMMY L
IPC: B65D33/10
Filed: 1993-06-16
Abstract: ABSTRACT                 EXTENSIBLE HANDLE BAG APPARATUS      An extensible handle bag apparatus capable of being manufactured on conventional high-speed manufacturing equipment, wherein the handles of the bag apparatus are constructed from an extensible material which provide comfort to a person's hands when carrying the apparatus, as well as which provide substantial load carrying capabilities to the bag itself.  One or more extensible handles are attached in a retracted position below the top peripheral edge of the bag until the handles are manually deployed by an individual making initial use of the fully constructed apparatus.  The handles comprise a gripping member and two leg members operably attached to the gripping member.  The handles further include at-tachment regions which are initially stretched, inde-pendent of the remainder of the handles so as to in-crease the surface area for adherence directly to the bag itself and/or to corresponding handle attachment patches.
Patent CA-2099370-A1 (CA)
Title: Apparatus and method for digitizing and segmenting a handwriting movement based on curvilinear and angular velocities
Inventor: PLAMONDON REJEAN
IPC: G06K9/24
Filed: 1992-02-10
Abstract: The apparatus and method for digitizing and segmenting a handwriting movement comprises an electrical transducer for generating three electrical digital position signals characterizing a trajectory of the handwriting movement. The apparatus comprises a device for low-pass filtering the electrical signals; a device for deriving the electrical signals by predetermined time and transfer functions for generating V x and V y electrical components which represent respectively speeds of the point according to X and Y axes of a Cartesian reference; and a device for calculating V.sigma. and V~ values from the V x and V y. values. The apparatus also comprises a device for calculating handwritten components and handwritten strings, where each of the handwritten components is delimited by two successive liftings of the point along the trajectory, and each of the handwritten strings is delimited by two successive portions of the trajectory where the V~ value is higher than a predetermined angular speed value and the V .sigma. value is lower than a predetermined curvilinear speed value.
Patent CA-2101432-A1 (CA)
Title: Perfluoroether graft copolymers
Inventor: ROLANDO RICHARD J
IPC: C08F299/02
Filed: 1992-01-24
Abstract: A fluorochemical graft copolymer comprising: a base polymer comprising polymerized units derived from monomers having terminal olefinic double bonds, having grafted thereto a plurality of polyfluoropolyether groups. Also disclosed is a process for preparing such a graft copolymer, and a method for reducing the surface energy of a polymer comprising polymerized units derived from monomers having terminal olefinic double bonds.
Patent CA-2101890-A1 (CA)
Title: Abrasive product
Inventor: MIDDLEMISS STEWART N
IPC: B27B5/22
Filed: 1993-08-04
Abstract: A method of producing an abrasive product comprises the steps of providing a mixture of diamond and discrete carbide particles, the diamond particles being smaller than the carbide particles and present in the mixture in an amount of more than 50 percent by volume, and subjecting the mixture to diamond synthesis conditions in the presence of a binder metal such as cobalt, nickel or iron. The abrasive product thus produced has a substantial amount of direct diamond-to-diamond bonding and many of the characteristics of a diamond compact, but improved impact resistance due to the presence of the carbide particles.      The abrasive product has particular application in the machining of wood products such as natural wood, chipboard, fibreboard and hardboard.
Patent CA-2102648-A1 (CA)
Inventor: JOHNSON DAPHNE R
IPC: C09B67/10
Filed: 1993-11-08
Abstract: The present invention relates to a process for conditioning quinacridone pigments by (a) preparing an aqueous slurry of a crude quinacridone; (b) thoroughly mixing the aqueous slurry with about 0.3 to about 2.9 parts by weight, relative to the quinacridone, of at least one C1-C12 alkyl ester of a C7-C12 aromatic carboxylic acid at a temperature of between about 70°C and about 200°C; (c) hydrolyzing the alkyl ester used in step (b); and (d) collecting the quinacridone pigment.
Patent CA-2103343-A1 (CA)
Inventor: BOBERG TORE
IPC: C06B33/00
Filed: 1993-11-17
Abstract: A pyrotechnic delay charge for providing delays in the millisecond and second ranges, comprising the components bismuth oxide as an oxidation agent and silicon as a fuel. The invention also relates to a pyrotechnic delay element having an enclosure containing the pyrotechnical delay charge, and to a detonator having a housing, ignition means disposed at one end of the housing, a base charge of a secondary explosive disposed at the other end of the housing and the pyrotechnic delay charge disposed therebetween.
Patent CA-2104028-A1 (CA)
Inventor: PINHAS HANNA
IPC: G03G15/01
Filed: 1992-01-21
Abstract: Imaging apparatus including an image forming surface, image forming apparatus for defining an electrostatic latent image on the image forming surface, the latent image having image portions and background portions, development apparatus for deve-loping the electrostatic latent image in a reversal mode, using electrically charged pigmented toner particles to form a developed image overlying the image portions, whereby the developed image on the image forming surface is at a first electrical potential and the background portions on the image forming surface are at a second electrical potential, discharge apparatus for partially discharging the image forming surface so that the developed image is at a third electrical potential and the background portions are at a fourth potential and an image receiving surface at a fifth potential, for receiving the developed image from the image forming surface, wherein the difference between the fourth potential and the fifth potential is low enough such that substantially no electrical discharge occurs between the image receiving surface and the background portions.
Patent CA-2104901-A1 (CA)
Inventor: MERCOLINO THOMAS J
IPC: G01N15/14
Filed: 1993-08-26
Abstract: CONTROL PARTICLES FOR CELL COUNTING                   AND INSTRUMENT LINEARITY     Abstract This invention describes methods and kits for determining instrument linearity of a flow cytometer and is particularly useful  as  a  control  particle  for  use  in  conjunction  with absolute  cell  counting  methods.   The  particle  used  in  the practice of this invention comprises a small fluorescent bead.
Patent CA-2105021-A1 (CA)
Title: Fluorescent lamp with improved phosphor blend
Inventor: HUNT ROGER B JR
IPC: H01J61/46
Filed: 1993-08-27
Abstract: A fluorescent lamp comprises at least one layer of a quad-phosphor blend for emitlang visible illumination having a white color. The quad-phosphor blend comprising a first and second green emitting phosphor component with each green emitting phosphor component having different visible emission spectrum principally in the 520 to 560 nm wavelength range. A third blue emitting phosphor component has an emission spectrum principally in the 440 to 470 nm wavelength range. A fourth red emitting phosphor component has an emission spectrum principally in the 590 to 620 nm wavelength range: The first green emitting phosphor component is a alkaline earth metal activated phosphor and the second green emitting phosphor is a rare earth activated phosphor wherein the relative proportions of the phosphor components are such that an enhanced color rendering index is produced as compared to tri-component blends formed from three of the phosphor components.
Patent CA-2109367-A1 (CA)
Inventor: GUNNELL LYLE P
IPC: B23K31/12
Filed: 1993-10-27
Abstract: A method of testing a filler material to be used in an arc welding process, the method comprising the steps of providing first and second test plates, the first test plate having a generally planar surface, and the second test plate having opposed, parallel, generally planar surfaces and a beveled edge forming a generally planar beveled surface extending at an angle from one of the opposed surfaces and forming a generally planar land which extends between the beveled surface and the other of the opposed surfaces and which extends generally perpendicular to the opposed surfaces, placing the land in abutment with the first plate surface, providing a restraining fillet weld at the junction of the other surface of the second plate and the first plate surface, and using the filler material to provide a test fillet weld at the junction of the beveled surface and the first plate surface.
Patent CA-2110046-A1 (CA)
Title: Polymer optical fiber amplifier
Inventor: SASAKI KEISUKE
IPC: H01S3/17
Filed: 1993-03-26
Abstract: Abstract A polymer optical fiber amplifier consisting of Gl type fibers of polymers containing stimulated emission compounds.   An amplifier which is useful as an amplifier of high efficiency and wide bandwidth through the use of Gl type plastic fibers is realized.
Patent CA-2111411-A1 (CA)
Inventor: ARTECHE IGNACIO ECHEVARRIA
IPC: C01B33/023
Filed: 1993-12-14
Abstract: Procédé pour la fabrication en continu de silicium métallique ou de ferrosilicium dans une cuve à courant continu (ouverte ou fermée) caractérisé en ce que les réactifs donnent naissance dans la région de température de 700.degree.C à 800.degree.C à une couche sintérisée filtrante pouvant sensiblement réduire les émanations de monoanydride silicilique (SiO).
Patent CA-2113134-A1 (CA)
Title: Method and assembly for preventing air entry between a moving material web and a roll
Inventor: PALOVIITA PETRI
IPC: B05C11/00
Filed: 1994-01-10
Abstract: Investigations have shown that curtailing the entry of air between the coater backing roll (3) and the web (5) being coated can offer a significant reduction in the number of uncoated blotches. By virtue of preventing the occurrence of such coat defects, the rotational speed of the kiss roll (2) in kiss roll coaters can be reduced.      The invention is based on pressing the web (5) being coated against the backing roll (3) from the opposite side of the web (5) relative to the backing roll (3) at a point preceding the nip between the kiss roll (2) and the backing roll (3), whereby air is prevented from entering between the web (5) and the backing roll (3). The means employed for pressing the web (5) against the backing roll (3) is an air jet to avoid imposing additional stress on the web.
Patent CA-2115087-A1 (CA)
Inventor: KEYES DENIS E
IPC: A61F5/443
Filed: 1994-02-07
Abstract: The ostomy pouch has a coupling member that can be removed from the pouch envelope to permit flush disposal of the envelope without the coupling member.  Flushability of the pouch is further enhanced by forming the pouch with converging side walls. Thus when the pouch is deposited in a toilet bottom end first in a carrier sleeve, the pouch can flow in streamlined fashion through the passages of a toilet and any sewer pipe or septic line connected to the toilet.         Depending upon the flush capacity of the toilet and the flow rate of water through the toilet and sewer line, the ostomy pouch can be deposited in the toilet without a carrier sleeve.
Patent CA-2115145-A1 (CA)
Inventor: MAEDA HIROKAZU
IPC: A23L29/10
Filed: 1993-06-14
Abstract: An emulsifier comprising as an active ingredient a water-soluble hemicellulose derived from a soybean cotyledon, an emulsion composition comprising the emulsifier, and a powder composition produced by powdering the emulsion composition.  The emulsifier of the present invention can provide a very stable emulsion composition.
Patent CA-2115259-A1 (CA)
Title: Herbicidal composition
Inventor: LOJEK JOHN STANLEY
IPC: A01N37/36
Filed: 1992-08-06
Abstract: A herbicidal composition, which can be formulated for selective or total kill of vegetation, comprises a synergistic combination of acetic acid and another organic acid, notably citric acid.
Patent CA-2119075-A1 (CA)
Inventor: ITAKI YOHICHI
IPC: H04N3/27
Filed: 1994-03-15
Abstract: In a convergence error detecting apparatus for use in combination with a display system of a projection type which displays, onto a display panel, a projected image signal which has a first synchronization signal of a predetermined frequency, and for detecting a convergence error signal representative of a convergence error appearing on the projected image signal, image pickup device is operated by a second synchronization signal of a frequency different from the predetermined frequency, for picking up the projected image signal to produce a pickup image signal by the use of the second synchronization signal, and processing unit processes the pickup image signal to detect the convergence error and to produce a convergence error signal representative of the convergence error.  The convergence error signal is supplied to the display system to remove the convergence error in the display system.
Patent CA-2119974-A1 (CA)
Inventor: REID ROBERT A
IPC: C12N15/12
Filed: 1994-03-25
Abstract: A human brain glycoprotein homologous to the mouse F3 and the chicken contactin/F11 adhesion molecules, nucleic acid sequences encoding the human brain glycoprotein and antibodies directed against the human brain glycoprotein.
Patent CA-2120308-A1 (CA)
Inventor: SIEFERT KRISTINE S
IPC: C02F1/66
Filed: 1994-03-30
Abstract: A wastewater treatment system and method for chemical precipitation and removal of metals from wastewater in a continuous or batch treatment process includes an ion-selective sulfide electrode and a reference electrode disposed in a precipitation tank for measuring an electrochemical potential therebetween in a predetermined range. A controller unit is provided which is responsive to the electrochemical potential in the predetermined range and is connected to a precipitant feed unit for automatically controlling the chemical precipitant fed into the precipitation tank.
Patent CA-2120969-A1 (CA)
Title: In situ marine fish incubator
Inventor: HUGUENIN JOHN E
IPC: A01K61/17
Filed: 1994-04-11
Abstract: A fish-cage incubator has a light source for attracting zooplankton therein a mesh barrier that admits zooplankton and excludes predators of fish larvae.
Patent CA-2121672-A1 (CA)
Title: Scalable three-dimensional borders
Inventor: BUTLER LAURA J
IPC: G09G5/14
Filed: 1994-04-19
Abstract: Scalable three-dimensional borders are provided in the user interface of an operating system. The borders are scalable in several respects. First, the dimensions of the borders are scalable relative to the resolution of a video display upon which the borders will be drawn. Second, the colors used in the borders are scalable based upon the range of luminances available on the video display. The borders are colored to provide the visual illusion of depth such that the borders appear to be three-dimensional.
Patent CA-2124674-A1 (CA)
Inventor: RENLUND GARY M
IPC: H01M8/12
Filed: 1993-02-24
Abstract: A solid ceramic composition provides high oxygen ion conductivity, and includes a metal oxide combined with multiple dopants.  The oxide may, for example, include zirconia, bismuth trioxide, thoria or halfnia.  The dopant oxides are chosen such that they are of similar ionic radius to the oxide, but such that they generally have different valences.  It has been found that choosing the dopants such that they exist in the composition at specified ratios results in surprising ability to transport oxygen ions.  Also disclosed are methods and apparatus for using the composition in removing oxygen and water from a mixture of gases. The doped ceramic composition (18) is formed into a tube (12) having electrodes (14, 16) coated thereon and is mounted in an insulated enclosure (24) which can be heated.  Mixed gases flow through the tube (12) and oxygen is transported through the cylinder walls when an electrical potential is applied.
Patent CA-2125290-A1 (CA)
Title: Abrasive article having abrasive composite members positioned in recesses
Inventor: BRUXVOORT WESLEY J
IPC: B24D3/28
Filed: 1992-11-30
Abstract: This invention relates to abrasive articles, and more particularly, to a coated abrasive article having an embossed backing containing recesses that carry abrasive composite members therein.  There is a need for an abrasive article that can provide a predictable, consistent, repeatable finish to a surface. There is also a need for an abrasive article in which abraded material can be easily removed from the surface of the abrasive article. The present invention provides an abrasive article that has abrasive composite members secured firmly in recesses in a backing sheet in a precise pattern whereby there is desired lateral spacing between each abrasive composite member. The present invention also provides a method for preparing the abrasive article comprising the steps of providing an embossed backing sheet having a plurality of recesses in the front surface of the backing sheet. The recesses are filled with an abrasive slurry that includes a plurality of abrasive grains dispersed in a binder precursor. An expanding agent is also provided in the recesses, either separated from the slurry or dispersed in the slurry. The expanding agent, when activated, expands the abrasive slurry outward and above the front surface of the embossed backing sheet. After the binder precursor of the abrasive slurry is hardened, individual abrasive composite members extend above the front surface of the embossed backing sheet. An alternative embodiment provides recesses that extend completely through the embossed backing sheet, so that abrasive composite members protrude from the front surface and from the back surface of the embossed backing sheet.
Patent CA-2130398-A1 (CA)
Inventor: LISOWSKY RICHARD
IPC: C07F17/02
Filed: 1994-08-18
Abstract: Disclosed are new bridged cyclopentadienylmagnesium compounds of the general formula Q(CpRa) (Cp'R'a')Mg, processes for the preparation thereof, and the use thereof for preparing bridged metallocenes.
Patent CA-2130518-A1 (CA)
Title: Dispersion and method for producing same
Inventor: DANDREAUX GARY F
IPC: C08L91/06
Filed: 1994-08-19
Abstract: The specification discloses an aqueous dispersion for coatings consisting essentially of water and a water dispersible component, wherein the water dispersible component is provided by reacting maleic anhydride with a rosin ester to provide a maleated rosin ester,  adding wax and preferably also an ethylene vinyl acetate copolymer to the maleated rosin ester,  and adding  a tertiary  amino  alcohol  to  the  mixture  to  yield  the  water dispersible component as a reaction product thereof.  When used in a coating formulation for paper, clay and/or latex may be added to the formulation. In one preferred embodiment, the dispersion is applied as a coating to paper to enhance toner adhesion to the surface of the paper while also providing a relatively low friction surface.
Patent CA-2130809-A1 (CA)
Inventor: WHEATLEY JOHN A
IPC: B29C48/12
Filed: 1992-11-25
Abstract: A multilayered reflective polymeric body of alternating layers of polymers wherein at least a portion of the layers are in a folded-over relationship is provided along with a coextrusion apparatus and method of preparing the multilayer polymeric body. The reflective polymeric body includes at least first and second diverse polymeric materials having a sufficient number of alternating layers of the first and second polymeric materials such that a portion of the light incident on the body is reflected. The first and second polymeric materials differ from each other in refractive index by at least about 0.03. The reflective body is thermoformable and may be fabricated into wall panels, dishware and decorative trims, and may also find use in security applications such as credit cards, credit card emblems, or on currency.