baber/WOPTO huggingface dataset:
Patent CA-2133301-A1 (CA)
Inventor: KUMAR RAVI
IPC: B01D53/04
Filed: 1994-09-29
Abstract: ABSTRACT   A pressure swing adsorption (PSA) process is set forth for purifying a high pressure (greater than 200 psig) feed gas mixture with respect to its less strongly adsorbed component.  In addition to the basic adsorption, depressurization and repressurization steps, the process of the present invention utilizes a low pressure purge step and one or more pressure equalization transfers.  A key to the present invention is that the depressurization step is performed to a sub-ambient pressure level.  An important application of the present invention is the purification of a high pressure natural gas feed stream with respect to its methane/C2 hydrocarbon component wherein said methane/C2 hydrocarbon component is produced at high purity and high recovery.
Patent CA-2133832-A1 (CA)
Title: Heavy liquid for material separations
Inventor: PATRICK JENNIFER MARY
IPC: C01G41/00
Filed: 1993-04-07
Abstract: A dense or heavy liquid for material separations comprising an aqueous solution including a salt having anionic moieties having the formula [(a)n+(b)m O k]x- where (a) is selected from group IV  elements, group V elements, transition metal elements, and rare earth elements; (b) is one or more transition metal elements having an atomic weight between 50 and 201 inclusive, where O is oxygen, where m is an integer between 6 and 18 inclusive, and where k is an integer between 24 and 62 inclusive, said dense liquid also comprising in said aqueous solution cationic moieties capable of forming said salt of said anionic moieties. The cation values may be lithium, sodium, or a mix thereof, with a small amount of hydrogen cations pro-vided by free acid anionic moieties. The most preferred anionic moiety is [SiW12O40]4-. The atom designated (b) alternatively may be molybdenum, vanadium, niobium or tantalum.
Patent CA-2134544-A1 (CA)
Title: Binding peptides which interact with ligand growth factors of the epidermal growth factor receptor and erbb-2 receptor
Inventor: LUPU RUTH
IPC: C07K14/71
Filed: 1993-04-29
Abstract: The present invention relates to blocking peptides which are capable of binding to ligands for the erbB-2 receptor or the epidermal growth factor receptor (EGFR). The blocking peptides of the invention are used to detect the presence of such ligand molecules.  In addition, the blocking peptides are useful in inhibiting or preventing the growth of adenocarcinoma cells which express the erbB-2 receptor or the EGFR.
Patent CA-2136805-A1 (CA)
Inventor: AVERY STEVEN C
IPC: H03K19/096
Filed: 1994-11-28
Abstract: CMOS  logic circuitry powered by the clock signals wherein the addition of strategically placed diodes enables the circuits to behave in an adiabatic-like fashion.
Patent CA-2138129-A1 (CA)
Title: Novel benzodiazepine derivative
Inventor: SATOH MASATO
IPC: C07D401/12
Filed: 1993-06-22
Abstract: A novel benzodiazepine derivative represented by the general formula (I) or pharmaceutically acceptable salts thereof.  These compounds are useful as medicines, in particular, for treating and preventing diseases in which CCK-B receptor and gastrin receptor participate, because they have CCK-B receptor antagonism, gastrin receptor antagonism and the effect of inhibiting gastric juice secretion.               (I)
Patent CA-2138314-A1 (CA)
Inventor: DOKI HIROTOSHI
IPC: D21H21/18
Filed: 1994-12-16
Abstract: Provided by this invention are an acrylamide polymer which has a weight-average molecular weight (a) of from 1,500,000 to 10,000,000 and a weight-average inertial radius (b) of from 30 to 150 nm, the ratio (b)/(a) of the weight-average inertial radius (b) to the weight-average molecular weight (a) being 0.00004 or smaller; and an aqueous solution of an acrylamide polymer which solution has a polymer concentration ranging from 22 to 60%, a Brookfield viscosity at 25°C of 50,000 cps or smaller and a weight-average molecular weight of from 500,000 to 10,000,000. They are useful as paper strength agents.
Patent CA-2142304-A1 (CA)
Inventor: HASHEMI REZA
IPC: E21B33/068
Filed: 1994-06-08
Abstract: L'invention concerne un procédé de nettoyage de puits de pétrole ou de gaz par insertion d'un tube, tel qu'un tube enroulé (60), dans un puits de forage (10), par exemple, dans la colonne de production (30) de celui-ci (10). On introduit dans le puits un fluide de nettoyage contenant un floculant lequel se mélange à des particules solides (11) dans le puits de forage (10) pour les floculer. On évacue ensuite du puits le fluide de nettoyage et les particules floculées. Dans un mode de réalisation, on décharge dans le puits le fluide de nettoyage contenant le floculant par la partie inférieure du tube (60), et on évacue du puits ce fluide avec les particules floculées par la colonne de production (30). Alternativement, on peut introduire dans le puits le fluide de nettoyage contenant le floculant par la colonne de production (30), et on peut évacuer ce fluide avec les particules floculées par le tube (60). Le floculant peut également servir de réducteur de friction pour réduire celle-ci entre le fluide de nettoyage, les solides, la colonne de production (30) et le tube (60).
Patent CA-2143609-A1 (CA)
Title: A dishwashing detergent containing a selected builder system
Inventor: ENGELSKIRCHEN KONRAD
IPC: C11D17/06
Filed: 1993-08-21
Abstract: Solid, weakly alkaline, phosphate- and chlorine-free products for dish-washing machines contain organic water-soluble builders, alkali carbonate, oxygen-based bleaching agents, surfactants and if required further usual components. In order to avoid the inconvenient formation of lime deposits in the dish-washing machines used, and in particular on the washed dishes, washing products are disclosed which contain oxidation products of polyglucosanes and/or their soluble salts as builder compo-nents.
Patent CA-2144102-A1 (CA)
Inventor: CHEN JUIN-HWEY
IPC: G10L19/08
Filed: 1995-03-07
Abstract: A speech coding system robust to frame erasure (or packet loss) is described. Illustrative embodiments are directed to a modified version of CCITT standard G.728. In the event of frame erasure, vectors of an excitation signal are synthesized based on previously stored excitation signal vectors generated during non-erased frames. This synthesis differs for voiced and non-voiced speech. During erased frames, linear prediction filter coefficients are synthesized as a weighted extrapolation of a set of linear prediction filter coefficients determined during non-erased frames. The weighting factor is a number less than 1. This weighting accomplishes a bandwidth-expansion of peaks in the frequency response of a linear predictive filter. Computational complexity during erased frames is reduced through the elimination of certain computations needed during non-erased frames only. This reduction in computational complexity offsets additional computation required for excitation signal synthesis and linear prediction filter coefficient generation during erased frames.
Patent CA-2146679-A1 (CA)
Title: Locking plate and bone screw
Inventor: TREBING LINDA
IPC: F16B5/02
Filed: 1995-04-10
Abstract: The present invention relates to a bone plate for the treatment of the spine, to a bone screw having particular applicability with said plate and to an orthopaedic system including the plate and screw.  The bone plate is preferably curved in its longitudinal dimension.  It has an anterior edge with a notch to make it easily grasped and manipulated with a forceps or similar tool and a posterior edge which is generally convex, there being threaded screw holes at the ends of the anterior and posterior edges.  The invention further includes a bone screw, particularly adapted for use with the plate described, comprising a threaded shaft having a head and a tip, the threading comprising a single start buttress section at the tip end of the shaft and a two start machine screw thread at the head end of the shaft.
Patent CA-2147508-A1 (CA)
Title: A method of promoting wound healing and compositions useful for same
Inventor: SCHULZ MARK WERNER
IPC: A61K35/44
Filed: 1993-10-27
Abstract: The present invention relates to a method of inducing, stimulating, enhancing, accelerating or otherwise promoting wound healing by the application of vitreous from mammalian ocular tissue or an extract on one or more components of the vitreous. The present invention is also directed to a topical composition comprising vitreous or an extract or one or more isolated components thereof capable of differentially stimulating growth and proliferation of granulation tissue but with substantially no effect on skin tissue.
Patent CA-2149692-A1 (CA)
Inventor: DE SMEDT ERIC
IPC: H01T19/00
Filed: 1995-05-18
Abstract: A bag-in-process assembly having a plurality of plys of bag material, one ply of material laying over others of said plurality of plys of material; a strong electro-static charge in a first zone of said bag-in-process assembly causing said one ply of material to be electro-statically attracted to said others of said plurality of plys of material.
Patent CA-2149830-A1 (CA)
Title: Structure legere en pa12 carbone pour le stockage de fluides sous pression
Inventor: GROSJEAN FRANCOIS
IPC: B29C53/60
Filed: 1995-05-19
Abstract: - Structure légère pour contenir des fluides sous pression, comportant une gaine composée d'un matériau composite résistant à la pression différentielle existant entre la pression du milieu extérieur environnant la structure et la pression du fluide sous pression, la gaine reste étanche jusqu'à une pression très proche de la pression d'éclatement de la structure légère. - Le matériau de la gaine est notamment composé d'une matrice en polyamide et de fibres de carbone noyées dans la matrice résistant aux composantes longitudinales et transversales de la pression différentielle.
Patent CA-2150539-A1 (CA)
Title: Audience Measurement System
Inventor: THOMAS WILLIAM L
IPC: H04N7/00
Filed: 1994-10-17
Abstract: An audience measurement system (10) collects data representative of tuned programs rather than of tuned channels, and includes (i) a household metering apparatus (14) which records ancillary codes or extracts program signatures from the programs if no ancillary codes are found therein, (ii) a reference apparatus (32) which monitors broadcast programs to be monitored, which extracts reference signatures therefrom, which records whatever ancillary codes may be associated with these broadcast programs and, if no ancillary codes are present, which compresses and stores a digital replica representative of the braodcast programs to be monitored, (iii) a data collection apparatus (36) which compares the household and reference data to determine (a) which of the broadcast programs to be monitored were selected for viewing and/or listening, (b) which of the metered households selected the braodcast programs to be monitored for viewing and/or listening, and (c) at which times the broadcast programs to be monitored were slected for viewing and/or listening.
Patent CA-2155385-A1 (CA)
Title: Magnetic field therapy apparatus
Inventor: KOLT STANLEY
IPC: A61N2/04
Filed: 1995-08-03
Abstract: Apparatus for the treatment of arthritis utilizing magnetic field therapy includes an adjustable voltage source adapted to be connected to a source of line voltage and a coil connected to the adjustable voltage source.  The coil is wound on a bobbin having a centrally disposed  opening  suitable   for  receiving  therein appendages of a human being as well as body portions thereof.  The bobbin is formed of copper or one of its alloys.
Patent CA-2156065-A1 (CA)
Title: Macrocyclic amide and urea immunomodulators
Inventor: WAGNER ROLF
IPC: A61P37/06
Filed: 1994-03-11
Abstract: Immunomodulatory macrocyclic compounds having formula (I) and pharmaceutically acceptable salts, esters, amides and prodrugs thereof, as well as pharmaceutical compositions containing the same, which possess immunosuppressive, antimicrobial, antifungal, antiviral antiinflammatory and antiproliferative activity, as well as the ability to reverse chemotherapeutic drug resistance.
Patent CA-2158570-A1 (CA)
Title: Opposable-element chromatographic assay device
Inventor: CHANDLER HOWARD M
IPC: B01L3/00
Filed: 1994-03-31
Abstract: A chromatographic assay device for use with immunoassays allows rapid and convenient assays of analytes of biological interest, and permits extractions to be carried out in situ avoiding the use of separate extraction vessels. The device has a wide dynamic range and avoids interference from particulates or colored components. In one form, the device comprises: (1) a first opposable component (11) comprising a sample preparation zone adapted to receive a sample to be assayed; and (2) a second opposable component (12) comprising a chromatographic medium (14). The first and second opposable components can be brought into opposition so as to cause the sample preparation zone (13) to apply the sample to be tested to the chromatographic medium. Preferably, the analyte is detected with a visually detectable label. Other variations of the device vary the arrangement of components to provide optimal chromatography for a variety of analyzes, as well as to permit bidirectional chromatography; still other variations are suitable for competitive immunoassays. The devices can be incorporated in test kits, and assay methods, both sandwich and competitive, using the devices are also disclosed.
Patent CA-2160817-A1 (CA)
Title: Subsurface safety valve
Inventor: JOHNSTON RUSSELL A
IPC: E21B34/10
Filed: 1995-10-18
Abstract: A subsurface safety valve 10 has a tubular valve housing 12, a valve closure member 18 movable between an open position and a closed position, an axially shiftable flow tube 24 for opening the valve closure member 18, a spring 38 for biasing the flow tube 24 to a closed position, a piston and cylinder assembly 26 to move the flow tube 24 to an open position, and a plug inserted within an opening in the valve housing 12. This opening is in fluid communication with the piston and cylinder assembly 26.  The plug is adapted to be displaced from the opening to lock out the safety valve, and to establish secondary hydraulic fluid communication with an interior of the safety valve in order to operate secondary tools, such as wireline set secondary valves, inserted into the locked out safety valve. This provides a low cost and relatively uncomplicated lockout mechanism.
Patent CA-2161631-A1 (CA)
Title: Security device
Inventor: JAMES WILLIAM KEITH
IPC: E05C19/18
Filed: 1994-05-09
Abstract: An alarm and locking device (1) for sliding doors and windows is provided. The device incorporates a suction pad (3) for attachment to a fixed door or window frame adjacent to an edge of the sliding section of the door or window, such that movement of the sliding door or window into contact with the device (1) actuates alarm means associated with the device. The method of attachment of the alarm and locking device (1) employs a flexible suction pad (3) enclosing the lower end of the device, which is applied to the glass panel of the door and then distented at its centre by the action of an over-centre lever (4), causing a partial vacuum between the pad and the glass panel.
Patent CA-2162698-A1 (CA)
Title: Drill pipe for directional drilling
Inventor: STEWART ARTHUR DEACEY
IPC: E21B17/10
Filed: 1994-05-09
Abstract: A drill pipe (10) having first and second end portions (12, 14) at opposite longitudinal ends thereof and a middle portion (16) extending between said first and second end portions; said end portions having a first outside diameter and said middle portion having a second outside diameter less than said first outside diameter; and said drill pipe having a plurality of centraliser means (22, 24 26) spaced along the length of said middle portion. The centralisers have an outside diameter greater than the outside diameter of the middle portion and, preferably, equal to or greater than the outside diameter of die end portions. The centralisers may be formed integrally with the drill pipe and are preferably arcuate in longitudinal cross section and formed with hard-faced spiral flutes.
Patent CA-2164034-A1 (CA)
Title: Respiratory nose-only device and system for laboratory animals
Inventor: VINCENT RENAUD
IPC: A61D7/04
Filed: 1995-11-29
Abstract: An apparatus for exposing laboratory animals to test substances comprises, generally, at least two supply manifolds for supplying each a gaseous or a vaporous substance, an exhaust manifold for removing an exhalate of said animals and unused portion of said test substance, and a plurality of inhalation chambers. Each chamber is dimensioned to accommodate a nasal part of the animal's head and is in fluid communication with the at least two supply manifolds and with the exhaust manifold.      The apparatus is designed to prevent the streams of test substances hitting the animal's nostrils and causing an avoidance reaction.
Patent CA-2166556-A1 (CA)
Title: Microwave transmission system
Inventor: KOOL LEO
IPC: H03D9/06
Filed: 1995-05-04
Abstract: In a microwave transmission system a microwave signal is transmitted by a transmitter (1) using an antenna (2) to a receiver (4) which employs an antenna (3).  The received signal is coupled to a mixer (17) via a waveguide section (15) having a cut off frequency being higher than the frequency of the signal generated by the local oscillator unit (18).  In this way, undesired emission of local oscillator signal is avoided.  Furthermore no additional image rejection filter is required.
Patent CA-2169165-A1 (CA)
Inventor: FOGH KENNETH
IPC: F16L58/10
Filed: 1995-06-07
Abstract: A process for treating metal pipe in the field is provided, for repair, rehabilita-tion of protection. The process comprises coating at least part of a pipe surface with first an undercoat of a thermosetting poly-mer such as a polyurethane or polyepoxide and second with an overcoat of a polyolefin composition e.g. a grafted polyolefin or ethylene/acrylic acid copolymer. The over-coat is applied by thermospraying.
Patent CA-2170983-A1 (CA)
Title: Game play media dispenser
Inventor: TAKEMOTO TAKATOSHI
IPC: G07D1/00
Filed: 1994-08-22
Abstract: A game play media dispenser comprises a ball passage 10 for allowing game play media (pachinko balls) 90 to flow, a gear 20 formed with a plurality of recesses 21 engaging with the pachinko balls 90 on an outer peripheral surface and rotating while causing the recesses 21 to engage with pachinko balls 90 flowing through the ball passage 10 in sequence, detection means 70 for detecting the pachinko balls 90 discharged through a discharge port 11, a first stopper 30 that can move to a first engagement position where it can engage with the gear 20 and a first saving position where it does not engage with the gear 20, a second stopper 40 that can move to a second engagement position where it can engage with the gear 20 and a second saving position where it does not engage with the gear 20, first drive means for moving the first stopper 30, second drive means for moving the second stopper 40, and control means for controlling the first drive means and the second drive means for causing the first stopper 30 and the second stopper 40 to engage with the gear 20 alternately.
Patent CA-2171002-A1 (CA)
Title: Submersible boat
Inventor: LOPEZ IBOR ALINO JOSE
IPC: B63G8/08
Filed: 1995-07-05
Abstract: Submersible boat is capable of navigating both on the water surface and submerged, the diving taking place by dynamic effect when the operator requires it, the boat having a catamaran type structure, containing two side floats (1-1') which are maintained partially under the water-line (2), while its cabin (3) is kept totally above said water-line when the boat navigates at the water surface. Fins (4) situated between the floats (1) provide for the steerability of the boat, both submerged and at the water surface, while the thrust is generated by a pair of propellers situated at the lower end of the floats (1) and actuated by diesel engines (9) when the boat navigates on top of the water or is submerged in shallow waters, but in deep waters the engines (9) are substituted by electric motors (12) supplied by batteries (13).
Patent CA-2172995-A1 (CA)
Inventor: MUKHERJEE RANJAN
IPC: C12N15/09
Filed: 1994-10-19
Abstract: L'invention concerne un gène récepteur activé de prolifération du péroxisome humain, qui est décanté de l'environnement dans lequel il se forme naturellement, et se présente de préférence dans un vecteur d'expression.
Patent CA-2174067-A1 (CA)
Title: Portable fire escape
Inventor: MATISI STEVE
IPC: E06C9/14
Filed: 1996-04-12
Abstract: A portable fire escape comprising a framework.  A structure is for mounting the framework across an opened window internally within a building adjacent a window sill.          An elongated extendable flexible ladder is provided.          Paraphernalia is for attaching a top end of the flexible ladder to the framework.  The flexible ladder can hang down externally against the building to the ground, to allow a person to exit through the opened window of the building during a fire.
Patent CA-2179123-A1 (CA)
Title: Pressure venting trigger sprayer
Inventor: BARRIAC JACQUES J
IPC: B05B11/00
Filed: 1996-06-13
Abstract: A trigger actuated pump dispenser includes a housing mounted on a container of gas/vapor producing liquid product capable of generating a superatmospheric pressure in the container, the housing including a piston/cylinder unit and a container air vent which includes a vent chamber and a vent port establishing communication between the vent chamber and the interior of the container. The air vent has a pressure vent outboard of the vent seal connected to the piston for releasing pressure from the container via the vent port and the vent chamber upon outboard movement of the piston to such outboard location in response to the superatmospheric pressure in the container.
Patent CA-2180639-A1 (CA)
Title: Exhaust gas purifier
Inventor: ISHIBASHI YOICHI
IPC: B01J35/04
Filed: 1995-11-06
Abstract: An exhaust purification apparatus comprising an expansion pipe and a thin catalyst in the exhaust system of an internal combustion engine.  Two openings for discharging an exhaust gas are formed in the peripheral wall of the expansion pipe at the end thereof on the upstream side in its longitudinal direction, and center portions of gas-permeable thin catalyst in their transverse direction are disposed separately round the expansion pipe in such a manner as to oppose the openings for the exhaust gas.  Both side portions of the thin catalyst are curved towards the expansion pipe and are welded integrally to the outer peripheral surface.  The outer periphery of the thin catalyst is sealed by a thin sealing plate as a seal member, and an opening is formed in the sealing plate on the opposite side to the openings for the exhaust gas of the expansion pipe.  A communication pipe whose upper end is fitted into the opening of the thin sealing plate penetrates through an opening of a muffler casing which is disposed substantially adjacent to, and in parallel with, the expansion pipe.  The lower end of the communication pipe has a U-shaped section which is open towards the downstream side of the muffler casing.  According to this construction, the exhaust gas can come into contact with the thin catalyst without being cooled by the expansion pipe or affected by the catalytic reaction heat. Therefore, a purification ratio and scavenging efficiency can be improved, and the size of the purification apparatus can be reduced.
Patent CA-2181251-A1 (CA)
Title: Modem control and communication arrangement
Inventor: GORDON ALASTAIR
IPC: H04N1/327
Filed: 1994-12-14
Abstract: The present invention discloses a method and apparatus for retrieval of information from a remote computer by a PC equipped with a facsimile modem where the PC initiates the communication. The method and apparatus in a preferred embodiment take advantage of the standard fields associated with facsimile transmission for exchange of information. The invention also provides a simple arrangement for changing the transmit mode of a facsimile modem to a receive mode.