baber/WOPTO huggingface dataset:
Patent CA-2150369-A1 (CA)
Title: Precipitated silica
Inventor: CHEVALLIER YVONICK
IPC: C01B33/193
Filed: 1994-09-29
Abstract: Silicas in the form of powder and substantially spherical beads or granules are characterized by a CTAB specific surface of 140 and 240 m2/g a high ultrasonic disaggregation factor, an average diameter, which is small after ultrasonic disaggregation, and optionally, a porous distribution, the porous volume formed by the pores with a diameter of 175 to 275 Å being less than 50% of the porous volume formed by the pores with diameters of 400 Å or less. The silicas may be used as reinforcing fillers for elastomers. The invention also concerns a method for preparing precipitated silica of the type comprising the reaction of an alkaline metal silicate M with an acidifying agent, resulting in a suspension of precipitated silica, and the separation and drying of said suspension, wherein precipitation is performed as follows: (i) an initial seed is formed comprising a portion of the total quantity of alkaline metal silicate M in the reaction, the silicate concentration (expressed as SiO2) in said seed being less than 20 g/l; (ii) an acidifying agent is added to the initial seed until at least 5% of the quantity of M2O in the initial seed is neutralized; (iii) the acidifying agent and the remaining quantity of alkaline metal silicate M are added simultaneously so that the ratio of the quantity of added silicate (expressed as SiO2) to the quantity of silica in the initial seed (expressed as SiO2) is greater than 4 and at most 100.
Patent CA-2153027-A1 (CA)
Title: Crankcase ventilator for internal combustion engines
Inventor: TREFZ WALTER
IPC: F01M13/02
Filed: 1995-06-29
Abstract: A  crankcase  ventilating  system  for  an  internal combustion engine includes a vent line issuing from the crankcase  and connected to a liquid separator.  The liquid separator has a collecting chamber for separated liquid and at least two drain lines returning to the crankcase.   The liquid separator also has a connection leading to the vacuum line of the internal combustion engine.
Patent CA-2158568-A1 (CA)
Inventor: HUNT ANDREW T
IPC: C23C16/30
Filed: 1994-03-24
Abstract: A method for applying coatings to substrates using combustion chemical vapor deposition by mixing together a reagent and a carrier solution to form a reagent mixture, igniting the reagent mixture to create a flame, or flowing the reagent mixture through a plasma torch, in which the reagent is at least partially vaporized into a vapor phase, and contacting the vapor phase of the reagent to asubstrate resulting in the deposition, at least in part from the vapor phase, of a coating of the reagent which can be controlled so as to have a preferred orientation on the substrate, and an apparatus to accomplish this method. The figure shows a schematic of a CCVD apparatus where the substrate (22) can be placed within the reducing region (32) of the Smithell separator (30) between the inner flame (18a) and the outer flame (18b) .
Patent CA-2160193-A1 (CA)
Inventor: WAWRZYNIAK WALTER W
IPC: B23B29/034
Filed: 1995-10-10
Abstract: A generating head assembly for cutting or machining a surface on a workpiece and including a  generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position for cutting or machining the surface of the workpiece and a radially retracted non-cutting on non-machining position; the generating head assembly includes an actuating structure for providing relative rotation between the generating head and the workpiece and a rotary motor mounted with the generating head; the rotary motor is selectively operable to rotate an actuating shaft relative to the generating head to actuate the cutting or machining members  to  their radially advanced and retracted positions without  axial  thrust  loads  being applied to  the generating head.
Patent CA-2167334-A1 (CA)
Inventor: MIKHAIL SHAHEER A
IPC: C21C5/36
Filed: 1996-01-16
Abstract: A thermally stable steelmaking slag is produced which is suitable for use in applications requiring dimensional stability, e.g. as aggregate in road construction. Fine particles of slag obtained from a basic oxygen furnace operation or from an arc furnace operation is firstly subjected to a thermal hydration at a temperature in the range of about 100 to 400°C. Thereafter, the hydrated slag particles are carbonated in the presence of carbon dioxide at a temperature in the range of about 500 to 900°C, whereby substantially all free calcium oxide in the slag particles is converted to calcium carbonate. The product obtained is well suited for road construction and cementitious applications.
Patent CA-2167341-A1 (CA)
Inventor: VATSKY JOEL
IPC: F23D1/00
Filed: 1996-01-15
Abstract: A burner assembly having an outer barrel formed into an inlet portion for receiving the fuel and a nozzle for discharging the fuel. An annular passage is provided in the nozzle through which fuel passes before being split up into a plurality of streams to produce a plurality of individual flame patterns upon ignition. The nozzle is tiltable relative to the inlet portion to enable the assembly to be utilized in multiple furnace configurations.
Patent CA-2167710-A1 (CA)
Inventor: GARENFELD ADNREAS JOHANNES
IPC: B26B19/28
Filed: 1995-04-19
Abstract: Un rasoir possède au moins une unité coupante (3) comprenant un élément coupant externe (4) et un élément coupant interne (5) pouvant être commandé par rapport à l'élément externe. L'élément coupant interne comprend au moins une nervure de coupe (11), et l'élément externe possède au moins une ouverture, par laquelle pénètrent les poils, en forme de fente (15), une partie de la nervure de coupe (11) s'étendant en permanence sur une ouverture (15) de pénétration des poils, et chaque point (A) de la nervure de coupe (11) effectue un déplacement selon une courbe fermée, en passant devant l'ouverture (15) de pénétration des poils au moins une fois lorsqu'il a effectué au moins une fois son parcours selon une courbe fermée. De préférence, la nervure de coupe (11) et l'ouverture (15) en forme de fente de pénétration des poils sont circulaires et le déplacement de la nervure de coupe se traduit par un mouvement circulaire excentrique.
Patent CA-2167775-A1 (CA)
Title: Optical fiber service cable
Inventor: NAVE SAMUEL D
IPC: G02B6/44
Filed: 1996-01-22
Abstract: An optical service cable includes a core tube containing a stack of optical ribbons and a filling compound. The filling compound may include a flame-retardant material, such as magnesium hydroxide or aluminum trihydrate.
Patent CA-2168880-A1 (CA)
Inventor: PARKINSON DAVID JOHN
IPC: C10G1/04
Filed: 1994-08-31
Abstract: PCT No. PCT/GB94/01889 Sec. 371 Date May 31, 1996 Sec. 102(e) Date May 31, 1996 PCT Filed Aug. 31, 1994 PCT Pub. No. WO95/07325 PCT Pub. Date Mar. 16, 1995Particles of sand coated with oil are loaded into a housing (1). A fluidizing unit (3) is provided towards the bottom of the housing. The fluidizing unit fluidizes the particles and discharges them from the housing to a separator, such as one or more hydrocyclones (8, 14), in which the oil and sand particles are separated. The coated particles can be introduced in the housing (1) via a cyclonic separator (50, 52) which provides some preliminary separation.
Patent CA-2172102-A1 (CA)
Title: Radio frequency choke for telecommunications transmission
Inventor: PAVLIC JOHN C
IPC: H01F5/00
Filed: 1996-03-19
Abstract: A first section of a radio frequency choke formed of 16 gage wire extends in fourteen turns around a ferrite coil form with a shunt resistor extending from the end of the coil connected to an AC or DC power signal transmission point to the midpoint of the 16 gage wire coil.   A second coil formed of 18 gage wire extends in 4.5 turns on the coil form and is connected to the end of the first coil on the form.  The 18 gage wire coil section is connected to the feed path that transmits both the power signal and the radio frequency signal.  The 16 gage wire coil section has increased current carrying capacity to withstand the adverse effects associated with telecommunica-tions signals transmitted at 15 amps and above.  The selected wire gage and number of turns is capable of operating at higher temperature and higher current without experiencing a reduction in the capability of the radio frequency choke to pass the AC power signal separated from the RF signal.  The total number of turns on the coil form provide sufficient inductance to the radio frequency signal path to promote a usable RF bandwidth from 5 MHz to 1 GHz for the diplexing circuitry.
Patent CA-2172352-A1 (CA)
Title: Circuit breaker
Inventor: NIEMEYER LUTZ
IPC: H01H33/72
Filed: 1996-03-21
Abstract: This  circuit  breaker  has  a  cylindrically designed arcing chamber  (1),  filled with an insulant medium, which has a power current path, arranged in an insulant   housing   (12)   and   stretched   along   a longitudinal axis (2), with a fixed contact arrangement (3)  arranged in the power current path,  and with a contact arrangement  (5)  having a moving contact cage (8),  both the fixed contact arrangement  (3)  and the contact  arrangement  (5)  each being  provided with  a fixed erosion-resistant covering (7, 10). In addition, a blast volume which accumulates the increased pressure of the insulant medium which occurs during a breaking process is provided.        The invention is to provide a circuit breaker in  which  the  contact  erosion  is  reduced  by  simple means. This is achieved in that in the on position, the contact cage (8) surrounds a guide part (4) designed to be  electrically  insulant,  and  in  that  the  insulant housing (12)  has a shoulder (13)  which projects into the region between a first covering (7)  and a second covering  (10),  and in that the two erosion-resistant coverings  (7,  10)  are arranged concentrically around the region of the moving contact cage (8).
Patent CA-2172877-A1 (CA)
Inventor: JACCARD ANDRE R
IPC: A22C9/00
Filed: 1996-03-28
Abstract: This   invention  provides  a  structure  for  meat tenderizers  which  substantially  reduces  the  time  and complexity of blade removal.  A stripper frame is used which not only has an open side but also has mating sections which will mate with a separator holder in a simple and convenient construction.
Patent CA-2175288-A1 (CA)
Title: Eye-controlled command system
Inventor: BUSHNAG KAMAL M
IPC: G06K11/00
Filed: 1996-04-29
Abstract: An eye-controlled command system (10) using the human eye to control the operation of a selected device or devices.  The control system (10) includes a digital camera (12) to follow the movement of one eye (42), and the opening and closing of that eyelid.  Another digital camera (14) is provided for monitoring the opening and closing of the other eye (42). The images detected by each camera (12,14) is viewed on a digitizer screen (20) by a scanning device (24).  The scanning device (24) delivers output to a control unit (26), that output including the color within each pixel (22) of the detected images.  The control unit (26) compares the location of the eye (42) with respect to a command template (16) such that when a selected initiating sequence is performed by the eyes (42) of the user, a command corresponding to that location on the command template (16) is performed.
Patent CA-2177493-A1 (CA)
Title: Concrete solar cell
Inventor: ARTHUR JOHN R
IPC: H01L31/0384
Filed: 1994-12-02
Abstract: An inexpensive, robust concrete solar cell (10) comprises a photovoltaic material embedded in and extending beyond the major surfaces (16 and 18) of a matrix layer (14). The matrix layer typically comprises a high strength, cementitious material such as a macrodefect free cement.  The photovoltaic material comprises particles (12) of high-resistivity single crystal silicon, typically ball milled from ingot sections unsuitable for slicing into silicon wafers.  The ingot sections include unprecipitated dissolved oxygen that is electrically activated by a low temperature annealing process to produce n-type silicon, even in silicon crystals that include a p-type dopant. An aluminum sheet (28) positioned on the backside of the matrix layer, is briefly melted together with the silicon particles to produce a p-type aluminum-doped silicon region (22) that forms a pn junction with the n-type region (24) of the particle. The aluminum sheet also provides the electrical contact to the p-type regions. The front surface of the matrix layer, from which the n-portion of the silicon particle protrudes, is covered with a translucent indium tin oxide conductive layer (30) that provides electrical contacts to the n-portion of the pn junction and digitated electrode (32) for conducting current off the cell.  A voltage is generated between the two conductive layers when light incident on the photovoltaic particle through the indium tin oxide conductive layer creates charge carriers.
Patent CA-2178492-A1 (CA)
Title: 2-spiro(2'-spirocycloalkyl)cyclopropyl cephalosporin sulfones as antiinflammatory and antidegenerative agents
Inventor: MAITI SAMARENDRA NATH
IPC: A61P31/04
Filed: 1994-12-06
Abstract: 2-spiro(2'-spirocycloalkyl)cyclopropyl cephalosporin sulfone compounds, methods of treating patients for elastase inhibition, and processes for preparing such compounds.
Patent CA-2179345-A1 (CA)
Inventor: GRIBKOV VLADIMIR NIKOLAEVICH
IPC: C01B21/072
Filed: 1996-06-18
Abstract: On produit des trichites de nitrure d'aluminium par réduction de l'alumine par le carbone en atmosphère d'azote, à une température de 1800 à 2000.degree.C, en présence d'un catalyseur de croissance contenant un élément-solvant, selon un procédé qui comprend essentiellement l'étape consistant à faire avancer périodiquement, à travers la zone de travail d'un four horizontal muni d'un dispositif de chauffage en graphite, à contre-courant d'un flux d'azote, un conteneur en graphite muni d'un mélange d'alumine, de carbone et de fer-carbonyle, en tant que catalyseur de croissance, présent en une quantité capable d'assurer la mise en oeuvre du mécanisme VLS, le temps de passage du conteneur dans la zone de travail étant dans la gamme de 20 à 120 minutes.
Patent CA-2181122-A1 (CA)
Inventor: TADA KEN-ICHI
IPC: H04W88/02
Filed: 1996-07-12
Abstract: A radio selective calling receiver that enables to restrain the vibration strength change of a warning vibrator independent of the supply voltage change of a dc power supply. This receiver contains a warning controller for controlling a specified warning operation including a warning vibration to give a warning to a user on receipt of a calling signal, a vibrator for producing the warning vibration by an electric power supplied from a dc power supply, and a switching transistor for switching the electric power supplied to the vibrator to thereby produce the warning vibration intermittently. The transistor has a first state in which the electric power is supplied to the vibrator and a second state in which the electric power is not supplied to the vibrator.          The both states are alternately effected by a control signal generated by the warning controller. The receiver further includes a power compensator for compensating change of the electric power supplied to the vibrator to thereby restrain change of a vibration strength of the warning vibration. The compensator adjusts the control signal so that a duration of the first state of the transistor is increased according to the decrease of the electric power supplied to the vibrator.
Patent CA-2182536-A1 (CA)
Inventor: MUKAIDA KOUHACHI
IPC: A23P1/08
Filed: 1996-08-01
Abstract: A process for preparing coating particles used for a fry food with a good taste and soft taste is disclosed.      The process is subjected to steps of making coating particles by mixing raw materials with the containment of one over selected from flour, starch, cereal powder or the like and, as desired, seasoning, together with a large amount of water, prefrying the mixture at a primary stage, by of pouring through a feeder 1 the mixture on the surface of an edible oil 31 resting in the other portion away from said one portion of a frying apparatus 2, so as to admit a deep penetration of the mixture into the edible oil, thereby forming prefried coating and frying the prefried coating particles at a secondary stage by an application thereto of a movement with a simultaneous agitation on the surface of the edible oil 31 of the frying apparatus 2, thereby forming coating particles.
Patent CA-2183240-A1 (CA)
Title: Living radical polymerization of vinyl monomers
Inventor: FRYD MICHAEL
IPC: C08F4/72
Filed: 1995-03-03
Abstract: This invention relates generally to a living free radical polymerization of alkene monomers through use of persistent metal centered radicals to attain control of the propagation and termination steps in radical polymerization. This process is useful for controlling the molecular weight of homopolymers or copolymers and for forming block copolymers.
Patent CA-2185250-A1 (CA)
Inventor: VILAIN BERNARD
IPC: H04Q3/00
Filed: 1996-09-10
Abstract: Il comprend des centres de gestion (CG1) fournissant les services de gestion, qui communiquent, par des messages de gestion, dans les deux sens, avec des éléments de réseau de télécommunications (NE1, NEn...) d'un réseau de télécommunications (RT), ainsi qu'un point de transfert de messages de gestion (PTMG), avec lequel communiquent, chacun selon ses propres spécificités, les centres de gestion comme les éléments de réseau de télécommunications. Le point de transfert de message (PTMG) comprend plusieurs dispositifs de transfert de messages de gestion (DTMG1, DTMG2) chacun d'eux desservant un ensemble d'applications de gestion (EAG1, EAGk) et chaque élément de réseau de télécommunications (NE1, NEn...) associé à un ensemble d'applications de gestion (EAG1) possède une interface (IN1) pour communiquer avec le dispositif de transfert de messages de gestion (DTMG1) desservant cet ensemble.
Patent CA-2185804-A1 (CA)
Inventor: MABBOTT ROBERT JOHN
IPC: G03G7/00
Filed: 1995-03-17
Abstract: A transfer material and method of use for transferring mono-chrome and full colour images produced by a xerographic process or dry toner printing onto a substrate.  The process requires the use of film form polymethylpentene material as the transfer material which is used to transfer the xerographic or dry toner image onto the sub-strate with the application of heat and pressure.
Patent CA-2187334-A1 (CA)
Title: Apparatus for preparation of cans for recycling
Inventor: JENNINGS JACK S
IPC: B08B9/30
Filed: 1995-03-27
Abstract: An apparatus (10) for preparing cans (70) for recycling which automatically feeds (12, 15, 16) cans one at a time into a cleaning station for cleaning (22) and draining (23) any remaining residue from the cans. At the completion of the cleaning cycle, the cleaned can is fed to a crushing station (34, 35, 36) where the can (70') is crushed to a predetermined thickness and then dropped into a hopper (54) for storage for recycling. In accordance with the invention, three or more aluminum or tinned steel cans may be cleaned and crushed per minute without operator intervention.
Patent CA-2187355-A1 (CA)
Title: An adjunctive polymer system for use with medical device
Inventor: DUNN RICHARD L
IPC: A61L24/00
Filed: 1995-03-15
Abstract: A medical device which is a surgically implantable device coated with an adjunctive polymer system. The adjunctive polymer system forms a solid matrix when introduced into a human or animal body. The adjunctive polymer system can contain a drug or a medicament which is released over time from the solid matrix. The adjunctive polymer system contacts body tissue into which the surgically implantable device is implanted.
Patent CA-2191806-A1 (CA)
Inventor: WASHIYAMA JUNICHIRO
IPC: C08L23/12
Filed: 1996-12-02
Abstract: A polypropylene resin composition comprising: a polypropylene, 50~70% by weight; a polystyrene-ethylene/propylene-polystyrene tri-block copolymer containing 15-40% by weight styrene, 3~15% by weight; a polystyrene-ethylene/butene-polystyrene tri-block copolymer containing 15~40% by weight styrene, 3~15% by weight; and a talc, 10-30% by weight; wherein the proportion of the above-mentioned polystyrene-ethylene/propylene-polystyrene tri-block copolymer with respect to the total amount of the above-mentioned polystyrene-ethylene/propylene-polystyrene tri-block copolymer and the above-mentioned polystyrene-ethylene/butene-polystyrene tri-block copolymer is 20~80% by weight; is a material with a superior balance of physical properties, having high rigidity, superior impact resistance and tensile elongation, and in particular, being excellent for use as a material for solid molded articles such as parts for automobiles, and the like.
Patent CA-2194390-A1 (CA)
Title: Serum paraoxonase
Inventor: HUDSON PETER L
IPC: C12N5/06
Filed: 1995-06-28
Abstract: Human serum paraoxonase enzyme and DNA (RNA) encoding such serum paraoxonase enzymes are disclosed. Also provided is the procedure for producing such polypeptides by recombinant techniques. Uses of such polypeptides include their use as an antidote for organophosphate poisoning and to prevent neuronal cell death. Diagnostic assays for identifying mutations in a nucleic acid sequence encoding a polypeptide of the present invention and for detecting altered levels of the polypeptide of the present invention are also disclosed.
Patent CA-2196306-A1 (CA)
Title: Sequence-specific binding oligomers for nucleic acids and their use in antisense strategies
Inventor: HERDEWIJN PIET ANDRE MAURITS
IPC: C07F9/6558
Filed: 1995-08-14
Abstract: The invention relates to oligomers consisting completely or partially of 1,5anhydrohexitol nucleoside analogues represented by general formula (I), wherein B is a heterocyclic ring which is derived from a pyrimidine or purine base, such as cytosine, 5-methylcytosine, uracil and thymine, or deaza derivatives thereof, or adenine, guanine, 2,6-diaminopurine, hypoxanthine and xanthine, or deaza derivatives thereof.
Patent CA-2197652-A1 (CA)
Title: Sheet material having a fibrous surface and method of making the same
Inventor: YOUNG TERRILL ALAN
IPC: D04H11/08
Filed: 1995-08-01
Abstract: A process for forming a sheet material having a fibrous surface and the sheet material produced thereby; the fibers are produced by deposition of a heated, thermally sensitive material on to a substrate, which is transported at a velocity approximately equal to the velocity of the material being deposited, by manipulating the fiber density and denier, the sheet material can be made to be either softer or rougher to the touch.
Patent CA-2197945-A1 (CA)
Inventor: THOMA STEVEN A
IPC: F23D1/02
Filed: 1997-02-19
Abstract: A spin vane for burners and over fire air ports in a furnace comprise a sheet-like vane element having a base and an extension extending perpendicularly off the base on the low pressure side of the vane element.  The extension reduces the formation and propagation of vortices on the low pressure side of the vane, increasing flow efficiency and reducing pressure loss across the spin vanes.