baber/WOPTO huggingface dataset:
Patent CA-2152041-A1 (CA)
Inventor: MOUREY JEAN-CHARLES D
IPC: G06F9/40
Filed: 1993-12-14
Abstract: The invention provides a method and apparatus for switching between execution of a plurality of object code types having different conventions for invoking program procedures and performing stack manipulations. The invention may also be used to switch between different calling conventions within a single object code type. Briefly according to the invention, a computer system comprises a routine descriptor, a stack switch frame, a mode switching mechanism for switching from a first processor, code or calling convention type to a second processor, code or calling convention type and means for executing instructions in various code types.A routine descriptor describes a program or code segment and its code type and calling conventions. A routine descriptor contains, among other information, a "mixed mode" field which is set to a specific, predetermined value such as a value indicating an instruction which is not legal in the runtime environment of a first processor, code or calling convention type. When that instruction is encountered, control is transferred to the mode switching mechanism. A routine descriptor also contains a "procedure information" field which is set to a value indicating the convention for invoking a program segment and performing appropriate stack manipulations.When a routine calls a routine having a different stack model, the mode switching mechanism uses a stack switch frame to provide a transition between the two different stack types.
Patent CA-2153949-A1 (CA)
Title: Bias tire having an improved crown reinforcement arrangement
Inventor: SOUTHAREWSKY ALEX
IPC: B29D30/30
Filed: 1995-07-14
Abstract: A bias tire includes a reinforcement member disposed between a first carcass and an additional carcass in the crown region of the tire for restricting the circumferential growth of the tire. The reinforcement member includes a plurality of cords oriented at zero degrees. The total circumferential strength of the reinforcement member is about 20 to 150% of the circumferential strength of the carcass plies. The reinforcement member, first carcass, and additional carcass are formed on a tire building drum as green tire component in a method of making the tire.
Patent CA-2154201-A1 (CA)
Title: Use of magnesium hydroxide as a stool softener
Inventor: O'KEEFFE KENNETH J
IPC: A61K9/48
Filed: 1995-07-19
Abstract: Magnesium hydroxide,  when used at subeffective laxative doses is an effective stool softener.
Patent CA-2157071-A1 (CA)
Title: Skate sharpening gauge
Inventor: TIMMS ALFRED REID
IPC: B24B41/06
Filed: 1995-08-28
Abstract: A device for accurately locating the blade of a skate mounted in a skate holder so that it may be ground correctly. The device includes a base block mounted to a base of a skate sharpener, a lever pivotally mounted to the block, the block having a blade contacting surface which is substantially perpendicular to the sharpener base, a deflection gauge for measuring the deflection of the lever from a neutral position. A pivotal axis of the lever is parallel to a plane through grinder wheel and parallel to the sharpener base.
Patent CA-2157312-A1 (CA)
Title: Highly active double metal cyanide catalysts
Inventor: LE-KHAC BI
IPC: C08F4/26
Filed: 1995-08-31
Abstract: Highly active double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC complex, and organic complexing agent, and from about 5 to about 80 wt.%, based on the amount of catalyst, of a polyether having a number average molecular weight greater than about 500. A method of preparing the catalysts is also disclosed. The catalysts are easy to prepare, have exceptional activity, and are readily removed, if desired, from polymer products.
Patent CA-2158802-A1 (CA)
Title: Pneumatically powered, fastener-driving tool
Inventor: MCGREAL TIMOTHY R
IPC: B25C1/04
Filed: 1995-09-21
Abstract: In a pneumatically driven, fastener-driving tool, a housing structure has an upper chamber, and a tubular cylinder is mounted within the housing structure.  A driving piston is movable axially within the cylinder, between an upper position and a lower position, and a valve member is movable axially within the housing structure, above the cylinder, between an upper position and a lower position.  The valve member has an upper surface facing the upper chamber.  A sealing member is arranged to provide a seal between the sealing member and the valve member under certain conditions and to provide seal between the sealing member and the cylinder under certain conditions.  An annular, elastomeric member located within the upper chamber of the housing structure is engaged with the lower surface of the upper portion of the housing structure and with the upper surface of the valve member for biasing the valve member downwardly to the lower position of the valve member, for permitting the valve member to be upwardly moved to the upper position of the valve member, and for functioning as a bumper between the valve member and the upper portion of the housing structure when the valve member is moved upwardly.
Patent CA-2158979-A1 (CA)
Title: Fixed-bed bioreactor and carrier body for purifying fluids
Inventor: HERDING WALTER
IPC: B29C48/35
Filed: 1994-03-24
Abstract: A fixed-bed bioreactor with porous carrier bodies (14) for microorganisms. The carrier bodies are sheet-like structures with a small thickness in comparison with the carrier body surface. The carrier bodies are kept spaced apart by means of spacing bars  (28), defining flow paths (36) between the carrier bodies. In a pro-cess for producing porous carrier bodies for micro-organisms, plastics particles (70) are introduced into a moulding space  (52)  and bonded together therein by application of heat.  With this process,  an endless extrudate  (46)  of carrier body material may be pro-duced, from which the individual carrier bodies may be cut off. Alternatively, the process may be carried out by means of a series of pairs of mould halves passing through a mould filling station and a heat  supply station.
Patent CA-2159453-A1 (CA)
Title: Ultra high speed parallel data fusion system
Inventor: KRONE NORRIS
IPC: G06F15/16
Filed: 1994-04-01
Abstract: A high speed data collection processing and distribution  system (Fig. 1) for coupling a plurality of digital data sources (16, 22) to a plurality of digital data processors (13, 19, 20). The system (Fig. 1) includes a plurality of segmented parallel data paths (DPS1, DPS2, DPS3, DPSn) and a plurality of nodes (Node-1, Node-2, Node-3, Node-n) connecting said parallel data paths (DPS1, DPS2, DPS3, DPSn) in an endless ring. Each node (Node- 1, Node-2, Node-3, Node-n) includes an input connector (IPC2) for connecting the end of one of said segments of parallel data paths (DPS1) on a one-for-one basis; a data multiplexer (31-2), a plurality of node parallel data paths (NPDS2) in the node (Node-2) corresponding to the segmented parallel data paths (DPS1), respectively, connected to the input connector of the data  multiplexer (31-2) such that data input to the  multiplexer (31-2)  corresponds to respective ones of the segmented parallel data paths (DPS1). A control processor (32-2) is coupled to said node parallel data paths (NPDS2), and a second input of the processor (31-2). A common source clock (30) and slot signals (CSC1, CSC2, CSC3, CSCN) is independently connected to said control processor (32-1, 32-2) in each node, respectively, for controlling the timing thereof.  Each node also includes transmit (53) and receive FIFO (43) buffer memories address (44), exclusive source (45) and pattern matching (46) circuits and a local clock distribution circuit (40).
Patent CA-2165547-A1 (CA)
Inventor: MACOMBER STEVEN H
IPC: G02B6/124
Filed: 1995-04-18
Abstract: Surface-emitting distributed feedback (SEDFB) lasers (10) having a curved grating (30) with a shape that produces good beam quality. A preferred shape is one for which the grating curves away from the center of the gain region (31) of the laser (10). The use of the curved grating (30) of the present invention produces good beam quality from broad area SEDFB lasers with high power and high efficiency. The present invention overcomes self-induced filament formation and dynamic instabilities that limit achievable beam quality. The present invention provides for a holographic method for fabricating curved gratings (31) for the SEDFB lasers (10) that is consistent with laser batch processing.
Patent CA-2169258-A1 (CA)
Title: Easy lift container opening
Inventor: HANNON CHARLES N
IPC: B65D17/34
Filed: 1994-08-05
Abstract: The top of a metal beverage container, opened with a non-removable fulcrum-type lift tab (2), is modified, by the inclusion of a shallow channel (7) in order to facilitate initial lifting of the tab (2). The channel is positioned directly adjacent the pushing end of the tab (2) and configured such that operative lifting of the tab causes the pushing end of the tab to fit within the channel and into pushing engagement with the container top at the base of the channel. The channel (7) is configured into mirrored conformity with the pushing end of the tab (2), with the depth of the channel conforming to the shape of the pushing end of the tab to maintain full pushing engagement.
Patent CA-2175185-A1 (CA)
Inventor: WOOD W GARY
IPC: B24C1/10
Filed: 1994-10-17
Abstract: A method for enhancing the rust resistance and the surface finish of a non-ferrous workpiece, such as aluminum, is disclosed.  The method comprises the step of impinging the workpiece surface for a predetermined amount of time with a high velocity stream of ferrous particles.  The ferrous particles preferably have a hardness less than approximately 40 Rockwell C, preferably 20-40 Rockwell C, and still more preferably 30-40 Rockwell C.  The particles are not tempered before impinging.  This substantially eliminates stress cracks in the ferrous particles, thus substantially preventing any particulate ferrous matter from becoming imbedded in the impinged workpiece surface, which imbedded particulate matter may be prone to rust.
Patent CA-2175462-A1 (CA)
Title: Process for manufacturing cellulose moulded bodies
Inventor: RUEF HARTMUT
IPC: D01F2/00
Filed: 1995-09-04
Abstract: In a process for manufacturing cellulose moulded bodies, cellulose is dissolved in a mixture of a tertiary amine oxide and a non-solvent for cellulose, for example water, the solution is extruded through a shaping tool and the thus obtained filaments are drawn through an air gap into a regenerating bath. The process is characterised in that the regenerating bath essentially consists of a non-aqueous solvent for tertiary amine oxide having a molecular weight higher than that of the tertiary amine oxide. Solvent-spun fibres with hardly any fibrillation tendency may thus be obtained. Polyethylene glycols are preferably used.
Patent CA-2179316-A1 (CA)
Inventor: LANOYE THIERRY
IPC: C09J109/00
Filed: 1994-12-08
Abstract: Des compositions destinées à être utilisées en tant que matériaux d'étanchéité, colles et/ou revêtements, contenant du 3,4-polyisoprène ainsi que des mélanges de caoutchoucs liquides et/ou solides et/ou de poudres polymères finement divisées et éventuellement de plastifiants, de charges ainsi que d'autres matériaux bruts classiques, présentent des propriétés d'amortissement des vibrations supérieures à celles de compositions traditionnelles ne contenant pas de 3,4-polyisoprène. Ces compositions peuvent être durcies de la même manière que des compositions classiques d'étanchéité/adhérence et/ou de revêtement.
Patent CA-2179509-A1 (CA)
Inventor: BARAZANI GIDEON
IPC: B23B29/00
Filed: 1995-10-20
Abstract: A cutting tool assembly comprising an elongated tool shank (1) having a shank holding portion (8) and an exchangeable adaptor (2) having an insert retaining portion for retaining a replaceable cutting insert (3) and an adaptor mounting portion (42) releasably secured to the shank holding portion (8) by two clamping screws (4). The clamping screws (4) are inserted into the respective adaptor mounting portion through bores (53, 54) and threaded bores (22, 23). The threaded bores (22, 23) being substantially aligned with the respective adaptor through bores (53, 54) in a reference plane through an axis of relative rotation of a workpiece with respect to the tool assembly. One of the adaptor mounting (42) and shank holding portions (8) is formed with a recess and the other one is formed with a protrusion (10) mating with the recess and received therein.
Patent CA-2182359-A1 (CA)
Inventor: BIERMANN WENDELL J
IPC: C09K5/04
Filed: 1995-04-25
Abstract: Absorption-type refrigeration methods and systems are utilized to minimize decomposition of heat transfer additive by removing, in generators (22, 72) operating below the additive's thermal decomposition temperature, the additive from the fluid before it reaches portions of the cycle (70) operating above its thermal decomposition temperature. Inverse series and inverse series-parallel connected triple effect methods and systems operate at lower temperatures that minimize decomposition and yield improved performance by reducing the pumping ratio and by decreasing the effectiveness of certain heat exchangers below standard practice.
Patent CA-2184910-A1 (CA)
Inventor: KATZMANN STEVEN P
IPC: B01L3/00
Filed: 1996-01-22
Abstract: A reagent segment (10) including a body and trough (30) formed therein with the floor of the trough sloped towards a drainage zone (40). The reagent segment is adapted for transporting reagents within an automated analyzer by having at least two protrusions (55A, 55B) on the exterior wall of the trough that fit within corresponding cavities of a transport arm. The reagent segment is retained by a latching mechanism through a protuberance (52) on the exterior surface of the trough that conforms with a hole in the latching mechanism. The reagent segment can further comprise a concave depression (42) on the interior surface of the trough at the drainage zone. The depression (42) can coincide with the protuberance (52) on the exterior surface of the trough that associates with the hole in the latching mechanism. Further, the reagent segment may include at least one indexing rib (62A, 62B), between the exterior surface of the trough and the rim of the body, that can be inserted within an indexing slot of a holding means. Thus, the reagent segment is uniquely adapted for automated handling and processing of reagents in an automated analyzer.
Patent CA-2186863-A1 (CA)
Title: Heterofunctional, mucoadhesive dosage form
Inventor: BROMET NORBERT EMILE
IPC: A61P25/24
Filed: 1995-03-31
Abstract: Mucoadhesive dosage form combining at least two controlled release formulations, with different release rates, selected from fast, medium, slow and very slow release forms.
Patent CA-2187246-A1 (CA)
Title: Cable driven conveyor system
Inventor: BESTGEN MICHAEL J
IPC: B65G17/02
Filed: 1996-10-07
Abstract: There is disclosed a cable driven conveyor system having a plurality of hangers connected to a cable and conveyor belt disposed on the plurality of hangers. The conveyor system is capable of hauling material in more than one direction. The ends of the conveyor system may be easily transportable, allowing for flexibility in the setup of the conveyor system. Their is also shown an idler assembly for use in a cable driven system.
Patent CA-2187324-A1 (CA)
Title: Process for forming pipe of improved construction
Inventor: WISE JOHN
IPC: B29C48/90
Filed: 1995-04-07
Abstract: A plastic pipe of an improved construction such that the pipe has apertures formed therein when the pipe is viewed in cross section, the pipe being made by a process including extruding a hot plastic flow through a die head (17) having a plurality of first sized gaps and second sized gaps, the second sized gaps having an aperture located inside each gap. A die (15) is secured to a manifold assembly (10), with the manifold assembly (10) having sets of tubes located centrally of one another, each set of tubes including a water inlet tube (150), a tube through which a vacuum is pulled (140) and a water return tube (130). Each set of tubes is positioned longitudinally within a respective die manifold tube (165) which extends through the die (15).
Patent CA-2188048-A1 (CA)
Inventor: HUNG HENRY H
IPC: G02B6/14
Filed: 1995-06-02
Abstract: A proton exchange polarizer with a spatial filter positioned to reduce cross coupling of unguided radiation. A photoconductor substrate is fabricated from LiNbO3 or LiTaO3. The substrate has a spatial filter located at a primary reflection point on a bottom of the substrate so as to block unguided TM mode light from reaching the output of the substrate. The spatial filter is fabricated by physical or chemical methods such as saw cutting, diamond machining, etching, micro-machining, laser-machining and/or damaging the surface of the substrate. The unguided TM mode light is attenuated by blockage or interruption of the transmissive region.
Patent CA-2189849-A1 (CA)
Title: Three-dimensional imaging detector employing wavelength-shifting optical fibers
Inventor: WORSTELL WILLIAM A
IPC: G02B6/02
Filed: 1995-05-08
Abstract: A detector structure having one or more inorganic scintillating crystals (210) coupled through wavelength shifting optical fibers (WLSFs) (310, 320) to position sensitive photomultipliers (PMTs) (330). By using WLSFs the detector structure can operate with a significant reduction in the number of PMTs and electronic channels, while potentially improving the resolution of the system by allowing three-dimensional reconstruction of energy deposition positions.
Patent CA-2194531-A1 (CA)
Inventor: SCALZO JOSEPHINE E
IPC: A61C5/00
Filed: 1997-01-07
Abstract: A universal occlusal matrix for application to the occlusal surface of a tooth having a central groove forming a V-shape in cross-section, the universal occlusal matrix being transparent to ultraviolet rays and to rays of the  visible  spectrum  to  permit  rapid  hardening  by polymerization of the filling material and of a material which does not adhere to that of the said filing.  The universal occlusal matrix has an elastic lamina having a central groove forming a V-shape in cross-section with first and second curved concave wings extending outward from the central groove. The elastic lamina extends away from the central groove sufficiently far to cover the occlusal surface of the various teeth to which it may be applied. The angle of the V-shape of the groove of the lamina is greater than the angle of the V-shape of the groove of the various teeth to which it may be applied. The elastic  lamina is  characterized by having wings whose radius of curvature is less than the radius of curvature of the cusps of the various teeth to which it may be applied.
Patent CA-2194884-A1 (CA)
Title: Convertible in-line/parallel skates
Inventor: COCHIMIN JIMMY
IPC: A63C17/06
Filed: 1995-07-25
Abstract: The present invention involves a skate that can be converted from an in-line wheel configuration in which all of the skate wheels are coplanar to a parallel or quad wheel configuration, and vice versa. The skate includes a foot or shoe enclosure (4), a wheel chassis (10), a wheel support (52), at least two wheels (50), and mechanisms which position the wheel chassis at a center point and allows the wheel chassis to pivot the wheels from an in-line to a parallel configuration. The positioning mechanisms include tie rods (18), yokes (84, 86), gear sets (106), and externally mounted rods or panels (116).  A post (30) on the bottom of the enclosure may include a threaded portion which is engaged by a nut (36) to rotationally secure the position of the wheel chassis, or the post may include a portion (94) of enlarged diameter supporting a spring (104) which biases the wheel chassis into the post. A  brake (122) is provided to allow the user to slow or stop the skate in a controlled manner.
Patent CA-2195858-A1 (CA)
Inventor: EDWARDS SIMON JOHN
IPC: G02C7/04
Filed: 1995-10-20
Abstract: L'invention concerne un verre ophtalmique progressif comprenant une surface comportant une zone de vision inférieure présentant une bonne qualité optique avec une puissance de surface élevée prédéterminée, sur une large zone de vision. Cette puissance prédéterminée est conditionnée par la prescription pour la vision de près (R¿x?) de l'utilisateur. La position de fixation horizontale est normalement déterminée par l'écart interpupillaire pour la vision de près de l'utilisateur et la position de fixation verticale est normalement déterminée par le point central de la monture verticale. Cette surface comprend en outre une zone de vision supérieure, présentant une puissance de surface inférieure, offrant une plage de vision améliorée pour la vision intermédiaire ou de loin. Cette surface comprend enfin un couloir de progression, d'astigmatisme relativement faible, s'étendant entre les deux zones mentionnées précédemment. Les contours de la puissance de surface moyenne et/ou de l'astigmatisme de surface à l'intérieur de la zone de vision inférieure, de la zone de vision supérieure et du couloir de progression sont généralement symétriques par rapport à un méridien de verre vertical, le verre étant en position de montage.
Patent CA-2197731-A1 (CA)
Title: Appareil de levage de garde-boue
Inventor: NICKELS DEAN R
IPC: B62D25/18
Filed: 1997-02-17
Abstract: Appareil de levage de garde-boue destiné aux camions ou autres véhicules permettant de lever les garde-boue et de les écarter des roues lorsque le camion recule ou déverse sa charge. Un vérin de commande pneumatique est rattaché à un châssis allongé et fixé sur le camion, au-dessus des garde-boue. Un câble relie le piston du vérin de commande aux garde-boue. Des rouleaux sont  fixés au châssis de sorte que le vérin soulève les garde-boue, les faisant passer de la position allongée à la position repliée et surélevée. Afin d'en faciliter l'utilisation, l'appareil de levage peut fonctionner avec le système pneumatique existant du véhicule, et le dispositif de commande peut être installé dans la cabine du camion.
Patent CA-2199115-A1 (CA)
Title: Api estimate using multiple fluorescence measurements
Inventor: SPILKER KERRY KENNEDY
IPC: G01N33/24
Filed: 1997-03-04
Abstract: Disclosed is a method for evaluating the API gravity of a sample of underground formation which comprises:         Solvating a known volume of an underground formation sample in a known volume of a solvent which will solvate hydrocarbons;         Quantitatively measuring with a changeable filter portable fluorometer the emission fluorescence of the solvated sample at a fixed excitation wavelength with measurements of emission intensities at two points; characterizing the oil by the ratio of two emission intensities obtained at a fixed excitation wavelength; determining the yield; applying regression analysis to a data base of oils to obtain an equation which results in an algorithm value; and interpreting the value of the algorithm to give a value for API gravity and estimate in-situ oil concentration.