baber/WOPTO huggingface dataset:
Patent CA-2071114-A1 (CA)
Inventor: DUC JEROME
IPC: A61F2/82
Filed: 1992-06-12
Abstract: 1. A device for transluminal extraction or implantation of a substantially tubular, radially expansible stent (3), comprising central tube (5) surrounded by an exterior tube (7) axially displaceable relative said central tube (5), and a plurality of axially extending gripping members (9) attached to said central tube at a distal end (11) thereof, said gripping members (9) being substantially evenly distributed around the periphery of said central tube (5) and capable of outward expanding action of their distal ends when retracting said exterior tube (7) from the distal end (8) of said central tube. Said gripping members (9) are arranged in at least two concentric sets (13,15), wherein every other set (13) is circumferentially displaced relative the adjacent one (15) so as to substantially cover the gaps between two adjacent members (9) of the adjacent set when in an expanded position, said sets (13,15) of gripping members (9) thereby forming a substantially closed distal end periphery when in said expanded position permitting a substantially omnidirectional engagement around said stent (3).
Patent CA-2073980-A1 (CA)
Title: Ignition Device
Inventor: SHIKE TSUTOMU
IPC: F23Q2/28
Filed: 1991-11-29
Abstract: A gas reservoir 7, a valve mechanism 8 for controlling gas supply from the reservoir 7 and a piezoelectric unit 20 are incorporated into a body portion assembly 2.  A rod portion 3 is formed by connecting a hard gas pipe 28 to a gas injection nozzle 26 provided in a tip of a rod-like metal tubular member 25 and electrically connecting the gas injection nozzle 26 on one end of the gas pipe 28 and a terminal member 34 on the other end of the same by way of a wire 33 which extends through the gas pipe 28.  The body portion assembly 2 and the rod portion 3 are assembled into a unit by engaging the base portion of the rod portion with an engagement portion 6c of the body portion assembly, thereby connecting the gas pipe 28 in the rod portion 3 to the valve mechanism 8 in the body portion assembly 2 and electrically connecting the metal tubular member 25 in the rod portion 3 to the piezoelectric unit 20 in the body portion assembly 2.
Patent CA-2074127-A1 (CA)
Title: Optical imaging system with a plurality of image planes
Inventor: DIEHL HERMANN
IPC: H04N3/15
Filed: 1992-07-17
Abstract: In this optical imaging system the same object section is imaged by optical means on three spatially separate image planes.          Surface sensors A, B, C of identical width which in turn comprise optoelectronic sensor elements arranged in the manner of a matrix are arranged in the three image planes at a distance from one another in parallel rows and are offset relative to one another from one row to the other.  The three grids of surface sensors which are accordingly formed are offset relative to one another from one image plane to the other in such a way that the object section is detected without gaps by means of the surface sensors A, B and C during optical superposition.  Thus, large surface area pictures with high resolution can be taken with the use of conventional surface sensors, e.g. of the CCD type.  Due to the special arrangement of the surface sensors, three image planes with the corresponding optical means, e.g. three lenses or less than three lenses and additional beam splitter systems such as semipermeable mirrors or prisms, are sufficient.
Patent CA-2075054-A1 (CA)
Title: Fluid detection device
Inventor: CHURCHOUSE STEPHEN J
IPC: G01N31/22
Filed: 1991-02-06
Abstract: A device of the type which uses a moving boundary for detecting a fluid analyte. The device includes an impervious container (10, 12, 14) having a fluid entry aperture (20) and containing two contiguous layers. One of the layers is a detection layer (16) in the form of a sheet comprising a reagent to generate a signal by a reaction initiated by the analyte. The other layer (18) is a spreading layer permeable by the analyte position such that analyte entering the container spreads within the spreading layer. The device can be used, for example, as a gas monitor for indicating exposure to hazardous gases or vapours.
Patent CA-2078918-A1 (CA)
Title: Process for the preparation of organopolysiloxane resins
Inventor: MAUTNER KONRAD
IPC: C08J3/12
Filed: 1992-09-23
Abstract: PROCESS FOR THE PREPARATION OF ORGANOPOLYSILOXANE RESIN      Abstract of the Disclosure A process for preparing an organopolysiloxane resin, which comprises reacting in a first stage at least one silane of the formula RaSi(OR1)4-a                       (I) in which a is 0, 1, 2 or 3, R is a monovalent organic radical, and/or a partial hydrolyzate thereof, with the proviso that at least one silane of formula (I) in which a is equal to 0 or 1, and/or a partial hydrolyzate thereof, is employed, and, if appro-priate, an organo(poly)siloxane with water in the presence of acid and, if appropriate, other substances, in a second stage reacting the reaction mixture obtained from the first stage in the presence of base and, if appropriate, other substances, and in a third stage adding with stirring, the reaction mixture obtained in the second stage into water, and if appropriate mixed with additives.
Patent CA-2079917-A1 (CA)
Inventor: HERBERT WILLIAM G
IPC: C25D1/02
Filed: 1992-10-06
Abstract: An endless metal belt resistant to failure due to stress induced by bending contains an internal stress gradient of radially outward increasing compressive stress which opposes external stress applied to the belt. The belt can be made by an electroforming process.
Patent CA-2088614-A1 (CA)
Title: Method and apparatus for obtaining the topography of an object
Inventor: CAMBIER JAMES L
IPC: A61B3/10
Filed: 1991-07-15
Abstract: A system, method, and apparatus for obtaining the topography of an object using computer analyzed rasterstereographic images. The object may be nontransparent and diffusing, or it may be transparent and nondiffusing, such as cornea. Rasterstereographic images of a cornea are produced by staining the cornea with a fluorescein solution which projects a light and dark line pattern onto the cornea through a grid. When obtaining the topography of a cornea, several different filters are used for producing and obtaining a grid image. An image processor uses unique software to store and analyze data extraced from the grid pattern. A video camera, an illuminator, the filters, and the grid may be mounted on a microscope. One embodiment uses a grid with vertical lines. Another embodiment uses a grid having intersecting horizontal and vertical lines for exhibiting surface details in a two-dimensional x-y plane. A computerized method and associated apparatus uses the data from the x-y plane to determine the projected grid intersection points on the surface of the cornea by intersecting a light ray formed by the grid intersection points on the actual grad in the projected system with a light ray formed by the grid intersection points of the image in the camera system.
Patent CA-2091499-A1 (CA)
Title: Large angle broadband multilayer deflectors
Inventor: NORMANDIN RICHARD J F
IPC: G02F1/295
Filed: 1993-03-11
Abstract: An optical signal deflector comprising an optical signal waveguide formed of plural layers of optically non-linear semiconductor material, apparatus for launching a first optical signal in the waveguide in a first direction which is parallel to the layers, apparatus for applying a second optical signal to the waveguide in a second direction parallel to the layers but at an angle to the first direction, the thickness and indexes of refraction of the layers being predetermined to cause non-linear field contributions of the signals to add in phase in the for field, whereby a third optical signal is obtained having an angle of emission which is the three dimensional vector addition, at a harmonic sum frequency, of the first and second signals.
Patent CA-2093444-A1 (CA)
Title: Hollow electrode for an electrochemical cell provided with at least one inlet and one outlet opening for gases, and also electrochemical cell which contains such an electrode
Inventor: JASPERS BLANDIKUS C
IPC: H01M8/12
Filed: 1991-10-01
Abstract: The invention relates to a hollow electrode (2, 6) for an electrochemical cell which is provided with at least one inlet (3, 7) and one outlet opening (4, 8) for gases, which electrode is made from an inorganic (ceramic) material and is provided on the outside with a gastight layer, which inorganic (ceramic) material is a mixed conductor. The electrochemical cell is preferably of plate-type construction, top and bottom sections being flat. The invention further encompasses an electrochemical cell containing at least an electrode according to the invention.
Patent CA-2096285-A1 (CA)
Title: Dipole Moment Detection and Localization
Inventor: EATON WILBUR W JR
IPC: G01R33/00
Filed: 1993-05-14
Abstract: An array of magnetic sensors (11) and a digital signal processor (70-80) are used to break a target magnetic dipole field into its components, and a magnetic signature of the present magnetic field is created. Predicted target signatures are precomputed for multiple magnetic orientations of the dipole (13) at each of a plurality of range locations, expressed in terms of Anderson functions (75), which are a set of equations that decompose the magnetic field in each of the magnetic response locations (12), and are stored in a lookup table for reference. Input data measured by the sensors are processed and each sensor's magnetic value is predicted to process against background noise using the other sensors of the array. A long term time average (71, 72) consistent with the relative motion of the target is computed using bandpass filtering of the signals from the sensor array, The bandpass filtered data is used to update the predicted data so that anomalies and other non-target data is removed from the signals that are processed. The data are then expressed in terms of Anderson functions (74). The data are matched filtered (76), wherein it is correlated with the stored precomputed predicted target signatures. The correlation yields a set of values that is then thresholded (78) If a target is present at any of the locations, then the correlated normalized value computed as stated above will be higher than the chosen threshold. The target locations (79) that are above the threshold are then displayed on a monitor (81) showing the relative location and dipole orientation.
Patent CA-2102752-A1 (CA)
Inventor: KOVACS LOUIS J
IPC: E04B1/35
Filed: 1993-11-09
Abstract: A building block building system is based upon novel building blocks having a rectangular face portion, with a projecting leg portion extending normal thereto, also of rectangular shape, and having a recess through its thick-ness.   The block edges include tongue and groove keying elements,  while the block L-section or T-section plan-form  provides,  on  assembly,  a  wall  of  considerable section modulus, the leg portions being mutually verti-cally aligned to form adjacent parallel vertical bays, and  the  leg  portion  through-recesses  constituting  a series of horizontal channels lying parallel with the block face portions, within which channels structural and other building components may be located.   The vertical bays may contain insulation, or may be enclosed with a simple form, and filled with concrete, as a solid pier. Simple seals,  such as O-rings may be used to seal the face of the wall.
Patent CA-2102955-A1 (CA)
Inventor: MAIN LAUREN O
IPC: A61B17/28
Filed: 1993-11-12
Abstract: A sealed surgical stapling instrument for performing a circular anastomosis stapling operation is provided.      The surgical instrument includes a stapling head assembly mounted by a curved shaft to an actuator handle assembly and incorporates an improved actuator mechanism for transmitting the required operating forces and movements from the actuator handle assembly through the curved shaft to an anvil and staple driver of the stapling head assembly. Various mechanisms for sealing the instrument are disclosed.
Patent CA-2103961-A1 (CA)
Title: Compositions which contain active substances and are in the form of solid particles
Inventor: GRABOWSKI SVEN
IPC: A61K9/14
Filed: 1993-08-12
Abstract: Compositions which contain active substances and are in the form of solid particles can be obtained by intimately mixing the active substance with a water-soluble melt composed of a) 10 - 90% by weight of a water-soluble polymer A with a viscosity V a of 1,000 - 120,000 cps and b) 10 - 90% by weight of a water-soluble polymer B with a viscosity V b of 1 - 500 cps as carrier substance, where the viscosities V a and V b are those of a 2% by weight aqueous solution at 20°C, measured by the ASTM D 2363-72 capillary method (European Pharmacopoeia, Vol. III, p. 37), and processing the melt with shaping to give the particles.
Patent CA-2105837-A1 (CA)
Title: High cohesion waterborne pressure sensitive adhesives
Inventor: MUDGE PAUL R
IPC: C08L101/00
Filed: 1993-09-09
Abstract: ABSTRACT   Waterborne pressure sensitive adhesive multipolymers exhibiting very high cohesive  strength may be prepared by a two stage emulsion polymerization procedure (overpolymerization) in which the first stage is a low Tg (i.e., less than about -20°C) copolymer having good adhesive properties, and the second stage is a high Tg (i.e., greater than about +25°C) non-pressure sensitive homopolymer or copolymer and wherein the ratio of the first stage to the second stage are between 80 to 20 and 99 to 1.
Patent CA-2108719-A1 (CA)
Title: Mixed zeolites and method for producing same
Inventor: PATIL MALLANGOUDA D
IPC: C01B39/26
Filed: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE Mixed  zeolites  embedded  in  and  strongly bound to a substrate and method for producing same are disclosed. The method comprises providing a plurality of seed zeolites, raw material for forming zeolites, the raw material comprising a source of silica, and  a substrate, and combining the above, heat-treating the combination at a temperature and for a time sufficient  to  insure  the  formation  of  stable SiO2, and hydrothermally treating the heat-treated combination with alkali hydroxide,  and optionally,  a source of alumina as additional raw material at least when the combination is absent a source of alumina, to produce the mixed zeolites. The substrate can either enter into the reaction to form the zeolites, or they can be non-reactive.
Patent CA-2109145-A1 (CA)
Inventor: GOERTZEN WILLIAM
IPC: B60G17/016
Filed: 1993-10-25
Abstract: Abstract of the Disclosure A self steering axle system for motor coaches and similar commercial vehicles having a truss which hingedly supports an axle beam for pivotal movement between a normal positive caster angle and a negative caster angle when the vehicle is driven in reverse. The pivotal or rocking movement is achieved by a centrally positioned shift actuator acting through a yoke arm assembly and a latch which absorbs brake reaction forces. The system includes a caster lock for rendering the axle non-steerable in the event of a system failure or above predetermined operational speeds.
Patent CA-2111919-A1 (CA)
Inventor: SANKEY STEPHEN W
IPC: B65D65/40
Filed: 1993-12-20
Abstract: Abstract Polymeric Sheet A composite sheet having a thickness in the range from 30 to 400 µm, has an opaque crystalline polyester first layer having a deformation index of greater than or equal to 2.5%, and a transparent crystalline polyester second layer.  The first layer preferably contains titanium dioxide.  The composite sheet is suitable for use as a replacement for aluminium foil, being particularly useful as a lid for a container.
Patent CA-2113767-A1 (CA)
Title: Electrical Half Connector with Contact-Centering Vanes
Inventor: SANDERS STUART E
IPC: H01R13/629
Filed: 1994-01-19
Abstract: This inexpensive, small half connector includes at least one electrical terminal (usually a female contact).  The half-connector body defines a hole to receive each terminal.  Each terminal has at least one retaining element for engaging the half connector (e. g., a springy tang that snaps into place behind an internal flange) to retain the terminal in the half connector.  Each hole has a segment of relatively large transverse dimension to receive its terminal, generally with transverse clearance about the circumference of the terminal.  Each hole also has a segment of reduced transverse dimension to receive the terminal and engage the retaining element(s) of that terminal to retain the terminal.  Each hole has some integral feature -- in other words, some structural element(s) integral with the half-connector body -- for centering the terminal in the large-dimension segment of the hole.  Preferably the integral element includes at least two and preferably three radially inward-extending protrusions from an inner wall of the large-dimension segment of the hole.  Each of these is preferably very thin, ideally about 0.2 to 0.23 millimeter thick.
Patent CA-2114771-A1 (CA)
Title: Method and apparatus for providing dual language captioning of a television program
Inventor: SALOMON AMNON M
IPC: H04N5/445
Filed: 1994-02-02
Abstract: A method of decoding data for a language having the Roman alphabet or a language having a syllabic alphabet from a composite video signal comprises the steps of receiving the data in the form of data packets and determining from bit values stored at particular bit positions whether the data is control data or represents printable character data comprising a head code or a tail  code.    Once  it  is  determined  that  the  data represents either a head code or a tail code of a printable character,  the data bytes are valued for parity and, from that determination, a letter component is generated which points to a letter component or complete  character  for  one  or  the  other  alphabet. Because characters of a syllabic language may be quite complex, the step of displaying the syllabic language character includes the steps of overlaying two or more letter components to form the syllabic character image. Furthermore,   the  syllabic  language  character  is displayed  having  a  height  of  approximately  three quarters  inch on a standard resolution NTSC signal television screen.
Patent CA-2119013-A1 (CA)
Title: Hepatitis c assay
Inventor: LESNIEWSKI RICHARD R
IPC: G01N33/576
Filed: 1992-09-16
Abstract: The present invention provides an improved assay for detecting the presence of an antibody to an HCV antigen in a sample by contacting the sample with at least one polypeptide containing at least one epitope of an HCV antigen. Preferred assay formats include a confirmatory assay, a combination assay, a synthetic polypeptide-based assay, an immunodot assay and a competition assay.
Patent CA-2120038-A1 (CA)
Title: Production of cadmium
Inventor: PRESTON JOHN S
IPC: C22B3/40
Filed: 1994-03-25
Abstract: ABSTRACT     A process for the recovery of cadmium from other metals with which it is mixed, in particular zinc, nickel,   or   both,   by   solvent   extraction   is described.  The solvent extractant is a synergistic combination of a trialkylphosphine sulphide  (R3PS) and  a  carboxylic  acid  extractant  in  an  organic diluent.    A  preferred  extractant  combination  is triisobutylphosphine          sulphide          and 3,5-diisopropylsalicylic acid.
Patent CA-2125351-A1 (CA)
Inventor: MALLOW WILLIAM A
IPC: C04B28/18
Filed: 1994-06-07
Abstract: A low cost cement composition that can be admixed with water and hydrothermally closed cured to give acid-resistant products of high compressive strength consisting essentially of, in parts by weight, 1 to 1.5 parts of a calcium oxide material containing at least about 60% CaO, 10 to 15 parts of pozzolanic material containing at least about 30% by weight amorphous glass or vitreous silica, and 0.025 to 0.075 parts by weight of an alkali metal catalyst and building materials made therefrom as well as the method of making such building materials by closed curing.
Patent CA-2132693-A1 (CA)
Inventor: KOSEKI TERUO
IPC: B29C33/42
Filed: 1994-09-22
Abstract: To form a surface of a thermoplastic film with a nonwoven fabric-like pattern, a mold is provided with a nonwoven fabric-like layer composed of many individual metal fibers intertwined at random and a previously heat-softened thermoplastic film is conformed to a pattern carrying the surface of the nonwoven fabric-like layer under a vacuum effect by a vacuum pump or a squeezing effect by a squeezing roll.
Patent CA-2133075-A1 (CA)
Title: CD28 Pathway Immunoregulation
Inventor: THOMPSON CRAIG B
IPC: A61K35/14
Filed: 1993-04-06
Abstract: 2133075 9319767 PCTABS00027 Immunotherapy of the present invention involves the regulation of the T cell immune response through the activation or suppression/inactivation of the CD28 pathway. Induction of activated T cell lymphokine production occurs upon stimulatory binding of the CD28 surface receptor molecule, even in the presence of conventional immunosuppressants. Inhibition of CD28 receptor binding to an appropriate stimulatory ligand or inactivation of the CD28 signal transduction pathway through other means down-regulates CD28-pathway related T cell lymphokine production and its resulting effects.
Patent CA-2133840-A1 (CA)
Title: Derives de perhydroisoindole comme antagonistes de la substance p
Inventor: ACHARD DANIEL
IPC: C07D209/44
Filed: 1993-04-08
Abstract: 2133840 9321155 PCTABS00164 Nouveaux dérivés de perhydroisoindole de formule (I) dans laquelle les radicaux R sont des radicaux phényle pouvant être substitués par un atome d'halogène ou un radical méthyle en position 2 ou 3, R1 est phényle éventuellement substitué, cyclohexadiényle, naphtyle, indényle, ou hétérocyclyle pouvant être substitué, R2 est H, halogène, OH, alcoyle, aminoalcoyle, alcoylaminoalcoyle, dialcoylaminoalcoyle, alcoyloxy, alcoylthio, acyloxy, carboxy, alcoyloxycarbonyle éventuellement substitué, benzyloxycarbonyle, amino ou acylamino, R3 est phényle pouvant être substitué en position 2, R4 est OH ou fluor si R5 est H, ou R4 et R5 sont OH, ou R4 et R5 forment une liaison sous leurs formes isomères ou leurs mélanges, éventuellement leurs sels lorsqu'ils existent et leur préparation. Les nouveaux dérivés selon l'invention sont particulièrement intéressants comme antagonistes de la substance P.
Patent CA-2134389-A1 (CA)
Title: Method and apparatus for feeding hoses into mining boreholes and the like
Inventor: PRESTON CHRIS
IPC: E21D1/08
Filed: 1994-10-26
Abstract: Abstract A method and apparatus are described for feeding a hose having a corrugated exterior surface into a mining borehole and the like.  The apparatus includes a support frame and a rotatable drive wheel having an annular groove for receiving the hose and ridges extending therefrom for meshing with the corrugated surface of the hose.  An idler wheel having an annular groove for receiving the hose is disposed of the support frame to bias the hose against the drive wheel.  A reversible, variable speed motor coupled to the drive wheel is provided for causing the drive wheel to rotate in a selectable direction and at a selectable speed.  The apparatus is mountable on an implement used in a mining operation.  The hose is couplable to a source of liquid explosive and to an inflatable wand for charging boreholes with explosive.