baber/WOPTO huggingface dataset:
Patent CA-2212942-A1 (CA)
Title: Gas actuated slide valve in a screw compressor
Inventor: LAKOWSKE RODNEY L
IPC: F25B49/02
Filed: 1995-12-06
Abstract: The position of a slide valve in a screw compressor in a refrigeration system is controlled using a gaseous medium sourced from the higher pressure of two or more sources of such fluid. Preferred sources are refrigerant gas in a closed compression pocket in the working chamber of the compressor and refrigerant gas in the discharge passage downstream of the compressor's discharge port. The multiple sources of such gas are connected to a solenoid valve which, when open, permits gas to act on the piston which controls the position of the slide valve. Due to a check valve arrangement, it is always the one of the sources of gas which is at higher pressure that acts on the slide valve actuating piston. The adverse affects of refrigerant gas out-gassing and gas bubble collapse associated with use of hydraulic fluid rather than a gaseous medium to modulate compressor capacity are avoided while advantageous use is made of compressor overcompression in the control of slide valve position.
Patent CA-2213837-A1 (CA)
Inventor: HAMBURG MARK
IPC: G06T11/00
Filed: 1997-08-25
Abstract: A system for providing a "copy on write" function for images represented as tiles such that creation of a new "target" version of an existing "source" image is performed by (1) allocating memory for a set of target image tiles corresponding to the tiles in the source image; and (2) using a special flag associated with each of the tiles of the target image to indicate a linkage (directly or indirectly) between corresponding tiles in the source image and the target image until such time as changes are made in the target image tiles or the target image is to be finalized. The invention eliminates or substantially reduces the amount of copying of data required to generate a new version of an existing image, and provides for an easy means for "undoing" an operation on the user-perceived image by swapping references to internal images, while conserving the use of memory and storage.
Patent CA-2214696-A1 (CA)
Inventor: PHELPS DANIEL R
IPC: H04N7/14
Filed: 1996-03-06
Abstract: A camera positioning system for rotating a video camera about a rotation axis. The system includes a camera platform (14) to which the camera is rotatably attached; a motor (18) mounted to a base (13) for driving the camera platform to effect rotation of the platform about the axis and relative to the base; a drive (20) for coupling the motor to the camera platform; an electrically driven capacitive sensor assembly (28) for generating electrical position signals for determining a rotational position of the camera platform relative to the base; and a feedback control circuit for using the position signals from the capacitive sensor assembly to control rotational positioning of the motor, resulting in rotating the camera to a desired camera position. The capacitive sensor has a conductive guard plate (34) which helps immunize the capacitive sensor assembly from noise and from ground potentials. The rotation axis can be horizontal or vertical with the camera rotated to effect pan or tilt respectively.
Patent CA-2216078-A1 (CA)
Title: Mesoporous fcc catalyst formulated with gibbsite
Inventor: FITZPATRICK CAROL P
IPC: C10G11/05
Filed: 1997-09-25
Abstract: A FCC catalyst having improved coke selectivity and greater catalyst strength, and a FCC process for converting hydrocarbon feedstocks to lower boiling products. The catalyst comprises a crystalline aluminosilicate zeolite, gibbsite, and a silica matrix prepared from at least one of a silica sol made by an ion-exchange process and an acidic silica sol prepared by mixing sodium silicate, an acid and an aluminum salt of an acid.
Patent CA-2217498-A1 (CA)
Title: Ice confection containing water ice particles
Inventor: BEE RODNEY DAVID
IPC: A23G9/32
Filed: 1996-04-12
Abstract: A deformable ice confection giving a smooth mouth feel and refreshment from a high ice content which comprises smooth convex faced ice particles in a deformable medium, e.g. a syrup or ice cream.
Patent CA-2219645-A1 (CA)
Title: Process for reducing the electric steelworks dusts and facility for implementing it
Inventor: ZOPPI GIANNI
IPC: C21C5/52
Filed: 1997-10-30
Abstract: The present invention relates to a process for processing the electric steelworks dusts and zinc-bearing,  high-iron,  oxidized materials  in  a low-frequency  induction  furnace  of  coreless  type, resulting in: - reduction of contained iron oxides to cast iron, - concentration of non-ferrous metal oxides in fumes recovered from the process, and - formation of slag suitable for being disposed of in normal dumps.   The cast iron bath,  kept at high temperature and rapidly circulated by the induced currents which flow through it, constitutes the "reducing section" of the  furnace,  inside which the reduction takes place of the oxides of metal which constitute the feed: Zn, Pb, Cd, Fe.     The  bath  covering  layer,  occupied  by  the feedstock  (pelletized  steelworks  dusts,  granular coal,  slagging  agents)  constitute  the  oxidizing section of the furnace inside which coal is burnt yielding  CO,  and  and  vapours  of  Zn  and  other feedstock metals leaving the bath are oxidized again and turn into fumes.     A  proper  fume  collection  unit  collects  the dusts and recovers Zn, Pb, Cd oxides concentrated to more than twice as high levels relatively to their initial concentrations at process beginning.
Patent CA-2221547-A1 (CA)
Title: Reinforced hub, pulley and method
Inventor: HODJAT YAHYA
IPC: F16H55/44
Filed: 1997-11-18
Abstract: A pulley with an integral hub spun-roll formed of a disc of sheet metal where the hub has an annular ring extending radially outward of the hub and reinforcing the hub. Optionally, the hub has as integral flange that facilitates removal of the pulley from a shaft.     A process for making a one piece pulley by pressing a shaping roller and a finishing roller against a side of a disc and displacing metal and forming a hub with an annular ring that is integral to the hub and reinforces the hub. Optionally ,the process includes pressing the shaping roller and finishing roller against displaced metal and forming a flange integral to the hub.
Patent CA-2221768-A1 (CA)
Title: Display unit for data dependent on a vehicle's energy consumption
Inventor: BIGALKE MANFRED
IPC: B60R16/02
Filed: 1997-02-20
Abstract: The invention concerns a display unit for data dependent on a vehicle's energy consumption. DE-PS-3 046 076 discloses a fuel-display device in which the instantaneous tank limit is displayed and the driver can see at a glance whether the fuel consumption falls within a predetermined range. The object of the invention is to provide a display unit for data dependent on a vehicle's energy consumption which clearly displays the most important data dependent on energy consumption and the contents of the energy store. This object is achieved in that the display device displays a tank limit range in dependence on the instantaneous amount of energy available in the storage system and on a vehicle-specific consumption spectrum, the tank limit range resulting from the minimum and maximum average consumption of the engine.
Patent CA-2227790-A1 (CA)
Title: Roller
Inventor: KUESTERS KARL-HEINZ
IPC: F16C13/00
Filed: 1996-07-09
Abstract: A roller assembly has a rotating hollow roller which surrounds with clearance a longitudinally extending non-rotatable crosshead. The hollow roller is carried on supporting elements on the crosshead acting on the inner circumference of the roller. Each supporting element defines a hydrostatic bearing pocket which is supplied with hydraulic fluid that flows over the edge of the bearing pocket to form a supporting film between the bearing head and the roller. The dimension of the bearing pocket longitudinally of the roller is at least twice the dimension in the circumferential direction, and further stabilizing bearing pockets are arranged one at each of the four corners of the rectangular head part of the supporting element and supplied with fluid through throttling ports. These stabilizing bearing pockets preferably have a diameter that is at most equal to half the circumferential dimension of the main bearing pockets.
Patent CA-2231271-A1 (CA)
Inventor: HEGELE RICHARD G
IPC: C12N15/10
Filed: 1998-03-05
Abstract: Reverse   transcription   employing   pooled   short oligonucleotides of random sequence as primers is used to obtain cDNA from viral RNA in a extract of cells suspected of being infected by RNA pathogens.   The cDNA may be amplified in a  single  PCR procedure  employing primers specific for two or more pathogens in order to detect the presence of multiple RNA pathogen infection in the cells.          DNA so amplified may incorporate bromo-deoxyuridine which facilitates a convenient and non-radioactive means  for detecting the amplified product.
Patent CA-2231430-A1 (CA)
Inventor: BORER TIMOTHY JOHN
IPC: H04N7/01
Filed: 1996-09-19
Abstract: This invention provides a way of performing improved motion compensated interpolation of moving images, such as television, using motion vectors of variable reliability. By taking into account the reliability of the motion vectors, produced by a separate motion estimation device, a subjectively pleasing interpolation can be produced. This is in contrast to simple motion compensated interpolation, taking no account of motion vector reliability, which is often degraded by objectionable switching artifacts due to unreliable motion vectors. The invention can be used, for example, to improve the performance of motion compensated standards converters used for converting between television standards with different picture rates. The invention allows a gradual transition between motion compensated and non-motion compensated interpolation depending on the reliability of the motion vector used. This is achieved by modifying the temporal interpolation timing, using a look up table, controlled by a vector reliability signal produced by the motion estimator. Effectively this adapts the motion trajectory of the interpolated output pictures.
Patent CA-2231570-A1 (CA)
Title: Processor performance counter for sampling the execution frequency of individual instructions
Inventor: BERC LANCE M
IPC: G06F11/34
Filed: 1998-03-09
Abstract: A processor includes an execution pipeline and a retire unit coupled to an end of the execution pipeline.  The processor executes instructions of a program.  An apparatus for collecting performance data while the instructions are executing includes a register coupled to the retire unit of the processor.  Means are provided for incrementing the register whenever an instruction is retired from the execution pipeline.  In addition  the apparatus includes means for generating an interrupt to an interrupt handler whenever the register is incremented to a predetermined value.
Patent CA-2232465-A1 (CA)
Inventor: CHAGNON FERNAND MICHEL
IPC: G09F7/18
Filed: 1998-05-14
Abstract: A tool to attach temporarily or permanently to an existing structure of any circular shape (not limited to a round shape like a circle) such as a pole, column, beam of any shapes, stake, post, lamp-post, tree etc.... a mounting base to which a fix or detachable sign or advertisement unit of various size, shape or thickness can be mounted.      Such a tool will use a binding strap to wrap around the existing structure, tension will be applied by tightening through the closing of a lever which will pull the binding strap and consequently applying pressure on the existing structure, Such a tool will have a lockable capability.
Patent CA-2232822-A1 (CA)
Title: Connection arrangement between an implant and an abutment
Inventor: GRANDE VINCENZO
IPC: A61C8/00
Filed: 1996-10-11
Abstract: The connector between an implant (1) and a straight or angled abutment (800) can be produced by means of a locking screw (400) and a spreader ring (500). There is an inlet (830) in the abutment (800) which is widened by a radial groove (835) near its lower outlet. The spreader ring (500) is supported in the groove (835) and through it passes the locking screw (400), the head (410) of which presses on the spreader ring (500) and the threaded section (430) of which engages in the threaded drilling (21) in the implant (1). The locking screw (400) with the spreader ring (500) fitted on it and the head (410) can be inserted into the inlet (830) from below beforehand. The implant (1) may have a non-rotationally symmetrical accomodating contour on the inner cone, preferably a polygonal recess, and the abutment (800) advantageously has a matching shape. A special screwdriver is used for screwing.
Patent CA-2233059-A1 (CA)
Inventor: KATOOT MOHAMMAD W
IPC: C12N5/06
Filed: 1996-10-02
Abstract: This invention relates to biologically-active polymers that are useful for analyte detection and isolation and delivery of substances. The biologically-active polymers are capable of specifically and reversibly binding to analytes, including molecules and cells. The biologically-active polymers are also capable of releasing substances upon electrical stimulation. The present invention provides compositions comprising biologically-active polymers membranes and methods for making these biologically-active polymers membranes that may be specifically designed to selectively bind cells and specific cell types, to affect cell growth characteristics, and to modulate cellular differentiation. These biologically-active polymers membranes may be controlled electrically to induce controlled cellular differentiation and modulate the cell growth cycle. These biologically-active polymers have many applications in biological and chemical fields.
Patent CA-2236466-A1 (CA)
Title: Bleach catalyst particles
Inventor: AQUINO MELISSA DEE
IPC: C11D17/06
Filed: 1996-10-16
Abstract: The present invention relates to bleach catalyst-containing composite particles suitable for incorporation into granular detergent compositions, said composite particles comprising: (a) from about 1 % to about 60 % of bleach catalyst (preferably a cobalt catalyst); and (b) from about 40 % to about 99 % of carrier material that melts within the range of from about 38 ° C to about 77 ° C (preferably selected from the group consisting of polyethylene glycols, paraffin waxes, and mixtures thereof), and to processes for making these particles. These particles are particularly useful components of detergent compositions, such as laundry detergent compositions, hard surface cleaners, and especially automatic dishwashing detergent compositions.
Patent CA-2236724-A1 (CA)
Inventor: TCHAKAROV BORISLAV J
IPC: E21B17/10
Filed: 1998-05-05
Abstract: A measurement while drilling tool has upper and lower centralizers secured to an upper end. Each centralizer comprises three major components: a housing, a tapered nose, a shaft which is slides in a bore of the housing, and a set of fingers around the shaft. The nose of the lower centralizer is tapered at a greater angle than the nose of the upper centralizer. An upper end of each finger is pivotally attached to the shaft. The fingers slidingly engage the nose when they are not in a retracted position. The centralizers are suspended in a drill pipe so that the shafts are fully extended from their housings. With the shafts extended, the fingers retract. Prior to drilling, the tool is lowered until it lands in a sub which causes the lower shaft to slides downward into the housing. The lower fingers move outward to engage the drill pipe without wedging against it. The upper shaft then slides downward into its housing, causing its fingers to move to an extended position and frictionally wedge between the upper nose and the pipe. The tool may be retrieved by running the line back down to the tool to jar the upper fingers loose from the pipe. Once the upper fingers disengage, the upper shaft slides upward out of its housing to allow the lower shaft to move upward. The lower fingers then fall into the retracted position before the tool is lifted out of the pipe.
Patent CA-2240420-A1 (CA)
Title: Fixing device of tools for transferring metallic films onto a substrate and process for realizing a template for the positioning of these tools
Inventor: STEINER JEAN-PIERRE
IPC: B41F17/00
Filed: 1998-06-12
Abstract: This positioning and fixing device of plate-shaped tools (3) for the hot-pressure transfer of portions of strap-like metallic films onto a substrate, comprises a supporting and heating plate (1) of said tools (3), having a plurality of apertures (2) adapted to receive fixing means of said tools (3).  This device includes positioning means for said tools (3) comprising, a template (9) covering said supporting and heating plate (1), provided with first distinctive marks of the position of each of said tools (3) on said plate (1), the latter carrying removable positioning and fixing means of this template (9) and second marks (12), provided on the upper surface of each of said tools (3) and the positions of which correspond to the positions of said respective first marks of said template (9).
Patent CA-2242319-A1 (CA)
Title: Nozzle for dispensing a liquid or pasty material
Inventor: HENNEMANN PASCAL
IPC: B65D47/20
Filed: 1997-01-07
Abstract: The invention relates to a nozzle for dispensing a liquid or semi-liquid substance (P) and designed to be mounted on a tank (R) suitable for being put under pressure, the nozzle being of the type comprising: .cndot. a thimble (1) provided firstly with a coupling end (11) for coupling to the tank (R) and secondly with an ejection orifice (10); and .cndot. a moving shutter (2) housed inside said thimble (1), the shutter being constituted by a rod (21) carrying a plug (20) at its outer end which co-operates with the ejection orifice (10) to form a delivery valve, and carrying a transverse wall (22) at its inner end that leaves a passage for the substance (P) and that cooperates with resilient return means (3) for returning the moving shutter (2) towards a closed position in which the plug (20) is engaged in sealed manner in the delivery orifice (10); the nozzle being characterized in that it further comprises an admission valve constituted by a deformable peripheral lip (23) subdividing the passage for the substance around the rod (21) in sealed manner into an upstream compartment and a downstream compartment.
Patent CA-2242752-A1 (CA)
Title: Polysulfides of n-methylpyrrolidinone
Inventor: FUTAMURA SHINGO
IPC: C07D207/273
Filed: 1998-07-09
Abstract: The present invention relates polysulfides of N-methylpyrrolidinone and to rubber compositions containing such polysulfides.  Addition of the polysulfides to rubber improves the hysteresis, accelerates the cure rate and improves filler dispersion.
Patent CA-2243230-A1 (CA)
Title: A device and method for the determination of protein domain boundaries
Inventor: EDWARDS ALED
IPC: C12Q1/37
Filed: 1998-07-15
Abstract: A method and device to assist in the determination of protein domain boundaries is described. In particular the device is designed to provide a high throughput of proteolytic digestion of proteins to identify domains and their boundaries, for use in protein structure determination, in a manner that is amenable to automation. Proteases are immobilized in a convenient format such as a microtitre plate and preferably arranged in a matrix thereby allowing for simultaneous degradation of a protein by a number of proteases at a number of concentrations.
Patent CA-2244530-A1 (CA)
Title: Light duty liquid cleaning compositions
Inventor: JAKUBICKI GARY J
IPC: C11D1/75
Filed: 1998-08-04
Abstract: A light duty liquid detergent with desirable cleansing properties and mildness to the human skin comprising: at least one sulfonate surfactant, an alkali metal orammonium salt of a C8-18 ethoxylated alkyl ether sulfate anionic surfactant, a betaine surfactant, an alkyl polyglucoside surfactant, an ethoxylated alkyl C12-C14 monoalkanol amide, optionally, C12-C14 monoalkanol amide and water.
Patent CA-2245008-A1 (CA)
Title: Tensioning device for a belt scraper
Inventor: MOTT GEORGE T
IPC: B65G45/16
Filed: 1997-12-02
Abstract: A tensioning device for adjusting the contacting/cleaning force of a scraper blade on the surface of an endless conveyor belt is provided for use on a shaft supporting the scraper blade. The tensioning device allows the shaft to be rotated and locked in a position which is very close to its optimum cleaning position, thereby increasing the efficiency of the scraper assembly. The disclosed tensioning device has three collars with a spring located in between the rotatable collar and adjusting collar.      Sequences of axially-directed apertures on the adjusting collar and the stationary collar move into and out of registry with each other as the adjusting collar is rotated.      A locking pin is through the aligned holes in adjusting collar and stationary collar when the desired amount of torsion is applied to the shaft.
Patent CA-2245806-A1 (CA)
Inventor: ADAMS JOHN S
IPC: C07K14/47
Filed: 1997-02-12
Abstract: The invention relates to the discovery and purification of novel estrogen response element binding proteins. Estrogen response element binding proteins are distinct from the estrogen receptor and other intracellular receptors, e.g. estrogen receptor. Estrogen response element binding proteins can interfere with the biological activity of the estrogen receptor and other related intracellular receptor proteins. One aspect of the invention is to provide purified estrogen response element binding proteins. Another aspect of the invention is to provide antibodies capable of binding to the estrogen response element binding proteins of the invention. Another aspect of the invention is to provide assays for the detection or screening of therapeutic compounds that interfere with the interaction between estrogen response element binding protein and estrogen response elements.
Patent CA-2255351-A1 (CA)
Title: Preparation of syndiotactic 1,2-polybutadiene using a chromium-containing catalyst system
Inventor: HALL JAMES E
IPC: C08F4/69
Filed: 1998-12-09
Abstract: The instant invention teaches a method for forming a syndiotactic 1,2-polybutadiene product having a syndiotacticity of more than 66.5 % and a melting temperature of more than about 100~C. The method includes polymerizing 1,3-butadiene in solution with a solvent, in the presence of catalytically effective amounts of: (a) an organomagnesium compound; (b) a chromium compound; and, (c) a dihydrocarbyl hydrogen phosphite. The present invention also contemplates a product of the method and an article made from the product.
Patent CA-2256407-A1 (CA)
Title: Oblate spheroid shaped gasification apparatus
Inventor: HILLIARD WESLEY P
IPC: C10J3/48
Filed: 1997-05-06
Abstract: Apparatus and method for gasification of feedstock material are disclosed. The apparatus includes an oblate spheroid gasification chamber (12) having inlets (14) for feedstock material and gaseous oxidizer. A combustion gas outlet (16) permits removal of combustion gases, and an ash collection region allows for collection and removal of ash produced in the gasification chamber. A  plurality of recirculating venturi tubes (35) recirculate combustion gases and particulates into and out of a gasification zone (32). Each venturi tube includes a plenum (40) having a gaseous oxidizer inlet (18) and a plurality of orifices are capable of producing high velocity air flow towards the feedstock material bed in the gasification zone. A plurality of air cannons (50) coupled to one or more pulse valves provide pulsed air flow into the gasification zone. Gaseous oxidizer inlet (18, 20, 22) in the ash collection region allow control of the ash carbon content.
Patent CA-2258048-A1 (CA)
Title: Process of preparing phenyl heterocycles useful as cox-2 inhibitors
Inventor: DOLLING ULF H
IPC: C07D307/58
Filed: 1997-06-27
Abstract: The invention encompasses a process for making compounds of Formula (I) useful in the treatment of inflammation and other cyclooxygenase-2 mediated diseases.