baber/WOPTO huggingface dataset:
Patent CA-2071491-C (CA)
Title: Tracheostomy method and apparatus
Inventor: GRIGGS WILLIAM MIDDLETON
IPC: A61M16/04
Filed: 1990-12-07
Granted: 2000-02-08
Abstract: Percutaneous tracheostomy. The trachea is penetrated by a hollow needle and a guide wire (43) is inserted into the trachea through the needle. The needle is removed leaving the wire (43) in the trachea. An instrument specifically adapted for use in tracheostomy operations, having two jaws (8) each with a groove (6) which cooperate when the jaws (8) are closed to form a passage, is inserted into the trachea opening with the guide wire (43) extending through the passage. The instrument is opened after insertion to widen the trachea opening. The instrument jaws (8) are curved so that when they are inserted into the trachea and spread to dilate the opening there is minimal risk of damage other than in the region of dilation. A tracheostomy tube is inserted into the opening via the wire (43) and the wire is withdrawn.
Patent CA-2073300-C (CA)
Title: Method of correcting range migration in image generation in synthetic aperture radar
Inventor: BAMLER RICHARD
IPC: G01S13/90
Filed: 1992-07-07
Granted: 1996-02-27
Abstract: In a method for correcting range migration in image generation in synthetic aperture radar (SAR) to eliminate the entire range migration or the residual range migration left by a conventional focussing method, prior to the range compression the data are transformed to the range-Doppler domain and there multiplied by a specific two-dimensional phase function; after an additional range Fourier transformatioin the range compression is then carried out with a specifically modified range transfer function and thereafter a range inverse Fourier transformation performed. Furthermore, a corresponding residual phase error is corrected. In addition, the data can if necessary be segmented in range or a range precompression performed.            With the method according to the invention the range migration is completely eliminated without having to perform an explicit interpolation.  Furthermore  with reduced processing expenditure improved image quality is obtained and moreover all known SAR focussing methods can be equipped with the method according to the invention.
Patent CA-2076754-C (CA)
Inventor: GOLDSTEIN ANDREW S
IPC: B01L3/00
Filed: 1991-02-27
Granted: 2000-07-25
Abstract: A method and device for collecting immunoglobulins and other analytes from the oral cavity for immunological and other testing. The device is a treated absorbent pad used to collect a specimen having a high concentration of immunoglobulins or other analytes, The specimen cap be subjected to a basic immunological testing technique which can be used as a tool for screening a patient for diseases. A test kit is also provided.
Patent CA-2077166-C (CA)
Title: Girth-welding process for a pipe and a high cellulose type coated electrode
Inventor: SUGINO TAKESHI
IPC: B23K35/365
Filed: 1992-08-28
Granted: 1999-11-02
Abstract: Chemical compositions of a base metal and a high cellulose type welding electrode are regulated within predetermined ranges, so that the chemical composition of the weld metal obtained from the welding can be regulated within a predetermined range. Particularly, with respect to the weld metal, the Mo content (Mo)1 in the weld metal and the Mo content (Mo)2 in the base metal are regulated such that the difference between the bath contents .DELTA. Mo (=(Mo)1-(Mo)2) is 0.03 or more, and PCM is 0.30 or less, where PCM is defined as follows: PCM =(C) + (Si)/30 + (Mn)/20 + (Cu)/20 + (Ni)/60 + (Cr)/20 + (Mo)/15 + (V)/10 + 5(B). Here, (M) denotes a content (weight %) of a component M in the weld metal.   On the other hand, a coating flux of the high cellulose type coated electrode contains relative to the total amount of the coating flux, 0.1 to 7.0% of MgO, 7 to 25% of iron oxides (in FeO equivalent), 8 to 19% of TiO2, to 30 % of SiO2 and 5 to 27% of Mn, and a core wire and/or the coating flux includes 0.06 to 1.10% of Mo relative to the total amount of the welding electrode. A ratio of the weight of the coating flux to the weight of the welding electrode being 0.10 to 0.19. By this; preferential corrosion resistance, toughness and crack resistance can be improved in the weld metal of a girth weld zone of a pipe which might be exposed in a corrosion environment containing CO2.
Patent CA-2077176-C (CA)
Title: Gas separation process and unit therefor
Inventor: TAKATSUKA TORU
IPC: C01B32/50
Filed: 1992-08-28
Granted: 1999-09-28
Abstract: A gas separation process and a unit therefor. The process comprises the steps of: introducing a gas consisting of two or more components into an adsorption system in which adsorbent particles circulate in a fluidized state, thereby to allow, at atmospheric pressure or an elevated pressure, the adsorbent particles to adsorb a gas component to be separated from the gas; transferring the adsorbent particles adsorbing the gas component to a desorption system; and then desorbing the gas component from the adsorbent particles in the desorption system which is regulated to have either a lower pressure or a lower pressure and a higher temperature than the adsorption system.
Patent CA-2077205-C (CA)
Inventor: NARASIMHAN KRISHNAN
IPC: C23C30/00
Filed: 1992-08-31
Granted: 2002-04-09
Abstract: A process for forming a titanium carbonitride coated stratified cobalt enriched cemented carbide cutting insert, said cemented carbide is comprised of more than 70 percent by weight tungsten carbide and has a matrix binder comprising cobalt with a cobalt enriched stratified surface. The process comprises chemically vapor depositing a layer of titanium carbonitride on said cemented carbide substrate by heating gaseous reactants comprising titanium chloride, methane, hydrogen, and nitrogen with an optimum methane/nitrogen ratio, under suitable conditions to form a titanium carbonitride coated insert having an eta phase in the cemented carbide substrate adjacent said titanium carbonitride coating. The eta phase comprises chemical compounds consisting essentially of cobalt, tungsten and carbon, and the titanium carbonitride surface is contacted with a carburizing gas for a sufficient time and at a sufficient temperature to convert substantially all of said eta phase to elemental cobalt and tungsten carbide.
Patent CA-2078930-C (CA)
Title: Register mark
Inventor: LEVIEN RAPHAEL L
IPC: B41F33/14
Filed: 1992-09-23
Granted: 1999-08-03
Abstract: A register mark and a system for bringing a pair of register marks into alignment is disclosed.  A first register mark comprises a plurality of dots of a first frequency, and a second register mark comprises a plurality of dots of a second, generally higher frequency.  When the first and second register marks are overlaid, an interference pattern resulting from the difference in frequency is observed.  The first and second register marks are in alignment when the interference pattern produces a maximum bright spot in the center of the register mark.  A small relative movement of the first and second register marks results in a larger relative  movement of center of the bright spot.  The position of the bright spot indicates which direction and how much to move the second register mark in order to achieve image registration.  In an alternate embodiment of the present invention, the frequency of dots in each register mark is warped with distance from the center of the mark.  The frequency of the dots of the second register mark is also warped with distance from the center, but overall has a generally higher frequency of dots as compared to the first register mark.  The interference pattern resulting from an overlay of the latter two register marks results in a bright spot which occurs unambiguously when the two register marks are in alignment.  At misalignments of more than one dot width, the bright spot breaks up so that the overlaid register marks may serve as quick visual check of proper alignment.
Patent CA-2081893-C (CA)
Title: Waistband construction featuring one-piece interior lap strip of differential elasticity
Inventor: D AMBROSIO ANTHONY H
IPC: A41F9/02
Filed: 1991-04-25
Granted: 1995-08-15
Abstract: A waistband (12) construction for garments including an elastic one piece flat strip (30) having upper (30a) and lower (30b) portions of different stretchability. The elastic strip (30) is connected to the fabric of the waistband (12) and the shell (14) of the garment so as to allow more expansion and comfort in fitting multiple sizes.
Patent CA-2086272-C (CA)
Inventor: CLELAND JOHN G
IPC: B25B7/12
Filed: 1992-12-24
Granted: 2008-01-22
Abstract: A pipe ring crimping tool providing significant mechanical advantage for applying force with a sufficient jaw opening and minimal external dimensions, minimal handle span and minimal handle length throughout the operational cycle. The tool is compact and lightweight to allow reach and access of the jaws into confined spaces. The tool utilizes a link and pin mechanism to translate the operator hand force in a manner which allows for smooth application of operator hand force while increasing the crimping force as the pipe ring is compressed. The tool configuration, by minimizing the handle spread, allows for single-handed operation of the tool or closely held two-handed operation. The tool includes a link mechanism designed to provide smooth crimping force and to preclude tool locking up and excess friction. The handles move laterally in opening the jaws to their maximum spread and are closed rotationally when crimping the pipe ring.
Patent CA-2088023-C (CA)
Title: Nouveaux materiaux plastiques formes de copolymeres heterogenes de fluorure de vinylidene et de chlortrifluorethylene, utilisation et procede de fabrication
Inventor: METZ JEAN-YVES
IPC: B29C48/21
Filed: 1993-01-25
Granted: 2004-03-23
Abstract: L'invention concerne de nouveaux matériaux plastiques formés de copolymères hétérogènes de fluorure de vinylidène et de chlortrifluoréthylène constitués de nodules élastomériques de copolymères hétérogènes de fluorure de vinylidène et de chlortrifluoréthylène dispersés dans une phase continue cristalline de quasi polymère de fluorure de vinylidène. Suivant un autre aspect, les matériaux plastiques sont formés de copolymères hétérogènes contenant globalement de 10 à 22 Y en poids environ de CTFE et présentant une température de fusion au moins égale à 165.degree.C et un module d'élasticité en flexion au plus égal à 1000 MPa. Les copolymères hétérogènes sont obtenus par copolymérisation radicalaire en milieu aqueux avec mise en oeuvre de la totalité des comonomères au départ de la copolymérisation. Les matériaux plastiques sont utilisables pour la confection d'articles souples tels que des articles tubulaires souples, des gainages pour câbles, des revêtements et des films.
Patent CA-2090884-C (CA)
Title: Cellulosic article containing an olefinic oxide polymer and method of manufacture
Inventor: MARKULIN JOHN
IPC: A22C13/00
Filed: 1993-03-03
Granted: 2001-10-16
Abstract: A tubular cellulosic casing comprising cellulose or a cellulose derivative which has incorporated therewith a polyethylene oxide composition having a molecular weight of at least 70,000 and a method of manufacturing the same.
Patent CA-2100427-C (CA)
Inventor: VAN DER HEYDE TANYA TITIA
IPC: H04M1/27475
Filed: 1993-07-13
Granted: 1997-10-14
Abstract: A graphical user interface workstation for use with a manager controller to control and implement changes to telephone sets of customer key telephone systems served by a telephone switching system. The workstation records high resolution graphical representation of each telephone set of a customer key telephone system and enables a customer to select and display a recorded high resolution graphical representation of each telephone set of the customer key telephone system. The workstation is interactive with the customer user and enables the customer user to selectively enter telephone lines, features and directory numbers changes into key button locations of a displayed telephone set graphical presentation. User entered key button changes are converted into program instructions and transmitted to the manager controller to control the telephone switching system to assign the selected key button telephone lines, features anddirectory numbers entered onto the displayed key telephone set presentations to corresponding telephone sets of the customer key telephone system.
Patent CA-2102509-C (CA)
Title: Immunostimulatory agent
Inventor: KONIG WOLFGANG
IPC: A61Q19/00
Filed: 1992-03-07
Granted: 2002-07-23
Abstract: There is disclosed an immunostimulatory agent comprising a peptide derived from lactoferrin having activity to modulate the release of inflammatory mediators from cells of the immune system. The peptide promotes the release of leukotriene B4 from polymorphonuclear neutrophils induced by activators such as the calcium ionophor A23187. It also promotes the release of histamine from mast cells induced by activators such as .alpha.-toxin-producing Staphylococcus aureus cells or the calcium ionophor A23187. The peptide is effective at low concentrations within the range of 1 to 100 ppm. By promoting the release of such inflammatory mediators the peptide can potentiate the cellular immune response and stimulate the host defense against infectious disease. This newly discovered immunostimulatory agent is useful as an active component of pharmaceuticals, hygiene products, clinical foods, etc., for prevention and treatment of bacterial, fungal, and viral infections in humans and animals.
Patent CA-2110221-C (CA)
Inventor: BOYD GEORGE P JR
IPC: E04D13/00
Filed: 1993-11-29
Granted: 1998-09-29
Abstract: A reinforcement system for mastic intumescent fire protection coatings.  Free floating hybrid mesh embedded in the coating is used to reinforce the coating.  The hybrid mesh is made from a combination of high temperature and low temperature yarns.
Patent CA-2116258-C (CA)
Inventor: JASPERSON STEVE J
IPC: E05D15/06
Filed: 1994-02-23
Granted: 1998-01-06
Abstract: A  support  assembly for  a  sliding  door  includes  an elongated track providing a track portion of generally inverted U-shaped cross section with spaced vertical walls.  A wheeled guide rides in this track portion and includes a mounting member and a body member of generally  inverted L-shaped configuration.   The vertical leg is secured to a door and extends upwardly therefrom; and the horizontal leg extends horizontally above the door.  A pair of wheels is rotatably mounted  on  the  horizontal  leg  for  rotation  about  axes perpendicular to the horizontal  leg and their peripheral portions extend beyond the opposite ends of the horizontal portion.  The axes of the wheels are oriented on an imaginary line extending at an angle of at least 30° to the central axis of the horizontal leg, and the circumferential portions of the wheels rotatably bear on the vertical walls of the track.
Patent CA-2118423-C (CA)
Inventor: HU HOPIN
IPC: B01D67/00
Filed: 1993-01-06
Granted: 2002-10-15
Abstract: A hydrophilic microporous membrane is provided comprising a hydrophobic membrane substrate exemplified by a polyo-lefin or partially fluorinated polyolefin membrane. A process is also provided for preparing a hydrophilic membrane by grafting a water soluble polymer to the hydrophobic membrane substrate surface by irradiation means, e.g., ultraviolet irradiation. The in-vention further concerns a method for making the membrane and process means for filtering a fluid through such membrane.
Patent CA-2118464-C (CA)
Inventor: TORONEN MARJO
IPC: D21C11/00
Filed: 1994-10-19
Granted: 2005-10-18
Abstract: The present invention relates to a method of processing white liquor (3) obtained from the causticization step of a pulp mill, in which method the infeed white liquor (3) principally contains sodium hydroxide (6) and sodium sulfide (7). The method according to the invention is characterized in that the sodium hydroxide (6) contained in the white liquor (3) is separated from the white liquor (3) either entirely or partly by means of a diffusion dialysis process (4). The invention is further characterized in that the sodium hydroxide (6) separated from the white liquor (3) is advantageously entirely returned back to the chemical circula-tion of the pulp mill.
Patent CA-2122317-C (CA)
Inventor: PEARSON JAMES EUGENE
IPC: F16H57/00
Filed: 1994-04-27
Granted: 1999-11-02
Abstract: A quieted motorized servoactuator with a sub-fractional horsepower high rpm, low voltage motor (30) driving a gear train with about 900:1 reduction overall. The motor shaft has a metal worm (32) meshing with a first stage gear (34) of elastomeric material, preferably polyamide polyester, of a hardness not greater than 72 on the Shore "D" scale. The first stage gear has an integral pinion (38) meshed with a second stage gear (40) of harder thermoplastic material, preferably acetal. The second stage gear has an integral pinion (42) meshed with an output sector gear (46) formed of harder thermoplastic material preferably comprising polyamide filled one-third by volume with fine glass particles.
Patent CA-2127599-C (CA)
Title: Gliding door latch assembly
Inventor: FIER DUANE T
IPC: E05C3/14
Filed: 1994-07-07
Granted: 1998-11-24
Abstract: The present invention provides an assembly for latching a moving panel relative to a frame in which the moving panel slides or glides.  A keeper is secured to the frame, and a latch is secured to the moving panel in such a manner that the keeper and latch are adjacent one another when the moving panel  is moved to a closed position within the  frame.          Rotation of a key or handle on the moving panel causes the latch to extend and capture the keeper and pull the moving panel toward the frame as it latches.   The latch cannot capture the keeper until a spike extending from the frame deflects a button on the moving panel.  When the moving panel is  latched,  the  spike  provides  resistance  to vertical movement of the moving panel relative to the frame.
Patent CA-2133349-C (CA)
Inventor: KASSAI KENZOU
IPC: B62B9/22
Filed: 1994-09-30
Granted: 1999-04-13
Abstract: A seat in a chair is suspended by two swingable links to be swingable with respect to a base with legs and a seat holder. The distance or spacing between lower ends of the two links is changeable or adjustable so that the links extend in parallel to each other or the links extend at an angle to each other, thereby varying a swinging mode of the seat. For this purpose the lower ends of the two links are connected to two sliders which are guided and operable to move in directions toward each other or away from each other, respectively.
Patent CA-2139393-C (CA)
Inventor: TANAKA NOBUO
IPC: A61M5/315
Filed: 1994-12-30
Granted: 2006-08-29
Abstract: An air- and liquid-tight container capable of storing different substances in different compartments sealingly separated by a front gasket having two separate parts independently slidable, and a rear gasket connectable to a push rod so as to function as a plunger, the front gasket being slidable in response to sliding of the rear gasket, thereby enabling the substance in the rear compartment to be introduced into the front compartment through a bypass, wherein the front and rear gaskets are encased in the tubular body at a compressibility C (%) of 2% to 10% with the product of the compressibility and the contact area (mm2) of the gaskets with the inside wall of the tubular wall falling within the range of 150 to 400.
Patent CA-2149059-C (CA)
Title: Terephthalic acid production using evaporative cooling
Inventor: KINGSLEY JEFFREY PAUL
IPC: B01F3/04
Filed: 1995-05-10
Granted: 2000-03-28
Abstract: The oxidation of p-xylene to produce terephthalic acid is carried out using pure or nearly pure oxygen and evaporative cooling.  By-product and waste generation are reduced, oxygen utilization is enhanced, desirable operating conditions are employed, and the need for direct contact heat exchange surfaces in the reactor vessel is obviated.
Patent CA-2152144-C (CA)
Title: Metal organic compounds and their use
Inventor: TATE PHILIP EDWARD RUSSELL
IPC: C08L21/00
Filed: 1995-06-19
Granted: 2005-04-05
Abstract: Metal organic compounds containing both cobalt and nickel bound to boron are effective adhesion promoters for bonding rubber to brass-coated metal used as a reinforcement.
Patent CA-2154504-C (CA)
Inventor: CRAIG FREDERICK YOUNG
IPC: A47K11/12
Filed: 1995-10-27
Granted: 1999-02-09
Abstract: Disclosed is portable urinal having a hollow base acting as a reservoir and a stand up tube connected to the reservoir. The tube is adjustable in height, and it's top open end has a luminous.
Patent CA-2165652-C (CA)
Inventor: HENSON WILLIAM DOUGLAS
IPC: B29C48/07
Filed: 1994-06-20
Granted: 1997-12-16
Abstract: Appareil et procédé pour la fabrication de produits alimentaires à base de pâte extrudée fondés sur une nouvelle filière d'extrusion (10) pour extruder, de préférence en continu, une masse de pâte multicouche laminée à partir d'une seule ouverture (30) dans la filière.  Une chambre (40) à l'intérieur de la filière comporte une diviseuse (60) pour séparer la masse de pâte en plusieurs masses qui sont réunies avant d'être extrudées par l'ouverture de la filière.  Une fois la masse de pâte cuite, elle se délamine partiellement pour donner la texture voulue.  La texture voulue, qui peut aller de relativement dense à relativement légère et feuilletée, est obtenue en réglant la position de la diviseuse de la filière d'extrusion et/ou en en modifiant la forme.
Patent CA-2166202-C (CA)
Title: Biaxial orientation blow molding method and preform holding jig
Inventor: SEKI NOBUICHI
IPC: B29C49/58
Filed: 1995-04-28
Granted: 2003-04-08
Abstract: The present invention is intended to prevent the deformation of a cylindrical mouth portion of a preform when a blow pressure acts thereon in a diameter expanding direction during biaxial orientation blow molding.  During biaxial orientation blow molding, sealing of the blow pressure is accomplished by means of a neck ring P1 circumferentially provided on a lower end of the circumferentially provided on a lower end of the circumferential surface of a cylindrical mouth portion  P2 of a preform to thereby make the blow pressure act uniformly on the whole area of the cylindrical mouth portion P2, whereby the unreasonable deformation of the cylindrical mouth portion P2 due to the ununiform application of blow pressure thereto can totally be eliminated.
Patent CA-2168342-C (CA)
Inventor: SCHILLER EDWARD E
IPC: C02F1/62
Filed: 1995-06-02
Granted: 2000-12-12
Abstract: An improved apparatus and method for recovering metal-lic silver from solutions containing silver ions by reducing sil-ver ions and oxidizing an element in the electromotive series above silver, such as iron. The apparatus provides plug flow of solution into the reaction media and thereby eliminates the principal cause of channelling and premature failure of the me-dia. A distribution chamber distributes solution uniformly to a porous pad of tangled threads or fibers ahead of the media. This ensures a planar flow front of solution as it enters and passes through the media. In a preferred embodiment, the pad is resilient and is supported by a highly open grating. By elim-inating the flow and pressure imbalances or gradients at the entry to the media which are inherent in previous apparatus designs, the invention prevents or greatly retards the onset of channelling or plugging of the media.