baber/WOPTO huggingface dataset:
Patent CA-2049236-C (CA)
Inventor: HAUT RICHARD C
IPC: F25J3/02
Filed: 1991-08-15
Granted: 2000-04-04
Abstract: The invention relates to a method and apparatus for start-up, transformation from start-up to normal operation and normal separation of carbon dioxide and other acid gases from methane using a distillation column with a controlled freezing zone. Normally, the feedstream is treated in at least one distillation zone, a controlled freezing zone, and another acid gas stripping apparatus. The freezing zone produces a carbon dioxide slush which is melted and fed into a distillation section and a methane-enriched stream which is fed to a separate stripping unit. Start-up is accomplished by refluxing the product stream from the separate stripping unit to the distillation column. Transformation is accomplished by separating the methane-enriched stream produced by the freezing zone into a liquid component for refluxing to the column and a vapor component to be fed to the separate stripping unit.
Patent CA-2056226-C (CA)
Title: Improved high voltage elbow
Inventor: LUZZI GLENN J
IPC: H02G15/103
Filed: 1991-11-26
Granted: 2001-08-07
Abstract: A connector for connecting a high voltage electrical cable to a high voltage electrical terminal.        A generally L-shaped elbow housing of a resilient insulating material with a central bore therethrough provides a cable receiving leg and a terminal receiving leg. A fastening means captivated within the terminal receiving leg, but free to rotate, is operated by an external tool inserted through a selectively capped access to join a terminated high voltage cable inserted through the closely fitting bore of the cable receiving leg to a terminal inserted in the terminal receiving leg. The fastening means engaging its captivating lock acting to assist in the assembly or disassembly of connector to said terminal.
Patent CA-2060621-C (CA)
Title: Coherent jet combustion
Inventor: SNYDER WILLIAM JOSEPH
IPC: F23D14/32
Filed: 1992-02-04
Granted: 1996-02-06
Abstract: Combustion method and apparatus establishing coherent jet oxidant flow within a cavity recessed from the main combustion area enabling operation without need for water cooling.
Patent CA-2060845-C (CA)
Title: Method and device for separating pieces of wood
Inventor: GEIGER BERTRAM
IPC: B07C5/14
Filed: 1992-02-07
Granted: 2000-09-12
Abstract: A method and apparatus for separating pieces of wood into different qualities in a wood sorting process is characterized in that the brightness as well as the texture of the surface of the wood are measured, and the pieces of wood are separated into different quality groups according to the measurements results obtained.
Patent CA-2064071-C (CA)
Inventor: PERDELWITZ LEE E JR
IPC: A47K10/02
Filed: 1990-07-20
Granted: 1994-04-12
Abstract: Unfused core forming fibers, indicated at (28), together with the facing sheet (24), are carried by the belt (20) into a thermobonder (22). The thermobonder (22) heats the fibers to a temperature above the melting point of at least one thermoplastic fiber material in the core. This heat fuses the core and also bonds the core to the facing sheet. At forming zone (54), the multilayered or composite web is typically bonded or densified along at least a section of the eventual peripheral edge margin of an article to be formed. Typically, the entire eventual peripheral edge margin of the article is densified. In addition, field bonds are also formed within the eventual field of the article intermediate the peripheral edge margin. The preferred approach is to emboss these bond areas. To this end, opposed sets of embossing rolls (70, 72, 74 and 76) are positioned as shown. The illustrated roll (70) comprises a field bond feature forming roll having a projecting pattern of field bond forming contacts (80) which press against the face sheet and other layers of the composite material.
Patent CA-2067035-C (CA)
Inventor: POETKER PHILIP JOHN
IPC: B25G1/00
Filed: 1992-04-24
Granted: 1998-08-11
Abstract: Attachment means for handles include a flexible strip which passes around a tool shaft or the like, and has oposed ends which mate to form a cylindrical male thread.  This thread is engaged by a female thread in a hollow handle. Between the hollow handle and the shaft is a saddle through which the strip passes, it is rotatably mounted by a cylindrical tube in a recess in the hollow handle.  It has a distortable rim which engages the tool shaft on tightening of the female screw.  Another version mounts an angled D handle rotatably on the saddle cylindrical tube, by a concentric outer cylindrical tube.  A nut engages the male cylindrical thread, and pushes the saddle against the tool shaft.  The strip can accommodate tool shafts over a diameter range varying by a factor of four.
Patent CA-2073779-C (CA)
Title: Medical securing tape
Inventor: TOLLINI DENNIS RUDOLPH
IPC: A61M25/02
Filed: 1991-01-03
Granted: 1999-01-26
Abstract: A securing tape (10) for securing to a patient's skin or to a support, a medical device such as tubing, a catheter, an intravenous needle, or the like, including an elongated tape having base portions (12, 13) a nd a central tab (16) formed integrally therewith, pressure-sensitive tape (20, 21) on the base portions (12, 13) and on an exposed portion (33) of the tab, and hook and pile fastener portions (35, 37) on opposite sides of the exposed adhesive (33) on the tab (16) and on the base portion (12) facing the exposed adhesive (33). Other embodiments have a separate tab (77) secured to the base as by a heat seal, stitching or by adhesive. A method of fabricating a securing tape consisting of the steps of providing a s trip of pressure-sensitive tape with release paper thereon, cutting out a window in a central portion of the strip of tape, removin g release paper from the central portion of the pressure-sensitive tape, folding the central portion on itself to cause the faci ng exposed pressure-sensitive adhesive parts to adhere to each other and to provide a window of pressure sensitive tape defined by the win dow which was cut out with the remainder of the strip forming a base, and securing hook and pile fastener material on opposite s ides of the window of pressure-sensitive tape on the tab and on the portion of the securing tape adjacent thereto which constitut es a base.
Patent CA-2078022-C (CA)
Title: Method of drawing large-size elongate cable for installation
Inventor: HORIUCHI TADANORI
IPC: B65H51/14
Filed: 1992-09-11
Granted: 1998-09-15
Abstract: A large-size is continuously drawn from a container with a plurality of spaced cable drawing machines associated with respective slave controllers controlled by a master controller.  A control signal is supplied from the master controller to the slave controllers to actuate the cable drawing machines at substantially the same variable speed for thereby drawing the electric cable from the container along a predetermined cable laying route.  The speed at which the cable drawing machines are actuated may selectively be varied.  A slack may be formed in the electric cable between two of the cable drawing machines which are closer to the container than the other cable drawing machines.
Patent CA-2080433-C (CA)
Inventor: ANDERSON H KIM
IPC: H01L31/08
Filed: 1992-10-13
Granted: 2000-05-16
Abstract: A device for generating pulses of radio frequency energy in response to pulses of laser light comprises a circular wafer of GaAs having metallized annular layers ohmically bonded to the wafer by epitaxial GaAs layers, and an epitaxial layer of AlGaAs in the center of one of the annular epitaxial layers through which laser light is to be directed, there being a plurality of apertures in the metallized layer in contact with the AlGaAs epitaxial layer.      In addition, an AlGaAs epitaxial layer may be formed opposite the first AlGaAs layer and an optical fiber brought into contact with it so that laser light can be introduced at both sides of the wafer.
Patent CA-2082377-C (CA)
Title: Composition for the treatment of overspray in paint spray booths
Inventor: ZUERNER EDWIN C
IPC: C09D7/00
Filed: 1992-11-06
Granted: 1998-05-19
Abstract: A composition for treating oversprayed paints that contains an effective amount of a carbonyl compound such as alcohol esters and alcohol ester derivatives in water together with a suitable emulsifier.  The carbonyl compound is capable of dissolving paint while remaining nonreactive with water.  The alcohol ester employed has the general formula:       The alcohol ester derivative employed has the general formula:       R' and R" are a substituted or unsubstituted linear alkyl group containing 1 to 8 carbon atoms, R and R"' are linear or branched alkyl groups containing 1 to 10 carbon atoms, and R and R"' are either identical or different alkyl functionalities.
Patent CA-2082915-C (CA)
Title: Summer damper for fireplace
Inventor: SCHROETER WOLFGANG
IPC: F24B1/189
Filed: 1992-11-13
Granted: 1995-08-08
Abstract: A fireplace comprises a firebox having a top panel, bottom panel,  rear panel and a flue. An outer casing  is  spaced  from  and  surrounds  the  firebox.  A combustion air feed passage for supplying combustion air to the firebox is provided. A heat exchanger, which is located  downstream  from  the flue  for  receiving  the combustion gases and for transmitting the heat from the combustion gases to air to be heated, is also provided. The  fireplace  includes  a  passage  for  conveying  the combustion  gases  from  the  flue  to  a  conduit  in communication with a source external to the room in which the fireplace is situated for exhausting the combustion gases from the fireplace and a switch for selectively coupling the heat exchanger in series with the passage. The switch is operable between a first position which the flue gases pass through the heat exchanger before being vented to the outside and a second position which the flue gases  pass  through  the  passage,  bypassing  the  heat exchanger, and are then vented to the outside. A second passage is provided between the outer casing and the firebox for circulation of air to be heated along with the heat exchanger.
Patent CA-2087225-C (CA)
Inventor: BIROS JEAN-LOUIS
IPC: B65G3/02
Filed: 1993-01-13
Granted: 2003-04-08
Abstract: L'invention a trait au domaine de stockage de déchets toxiques, sous forme solidifiée, sans créer de pollution, sur des sites artificiels appropriés.  En résumé, sur un sol (1) stabilisé en profondeur, on coule un radier de béton constitué par des plaques (2 à 5) jointoyées et disposées en damiers, ce radier pouvant supporter un matériau d'étanchéité (6); puis on entasse sur le radier les déchets en respectant une forme de tumulus (8), la mise en place s'effectuant sous la protection d'une couverture mobile comprenant un pont roulant (9) muni de rouleaux (11, 12, 13) de film de matière plastique.
Patent CA-2087660-C (CA)
Title: Thixotropic adhesive gel
Inventor: ANDERSON JOHN
IPC: C08K3/20
Filed: 1993-01-20
Granted: 1998-04-07
Abstract: A water based thixotropic adhesive gel is disclosed which consists essentially of: water;   partially hydrolyzed polyvinyl alcohol,  or wherein a portion of the polyvinyl alcohol is replaced with  polyvinylpyrrolidone;   a  water-soluble  high  viscosity thickening agent polymer which is compatible with the polyvinyl alcohol and which imparts thixotropic properties to the gel; a water-soluble plasticizer for the polyvinyl alcohol; and a water-soluble defoamer in proportion of ingredients so that the viscosity of the adhesive will break down when a flexible tube or squeeze bottle dispenser is finger-pressed and have a sufficiently low viscosity to allow for easy extrusion from an orifice having a diameter of about 0.06 to 0.15 inches.  When pressure is released, after  the  desired  amount  of  adhesive  has  flown  out  of  the dispenser,  the adhesive quickly reverts to very close to its original gel state so that it will not run on a vertical surface on porous and semiporous surfaces such as paper.   An article of manufacture is also provided whereby the adhesive gel  containing the above ingredients is in a flexible dispenser from which the adhesive can be dispensed by finger-pressure.
Patent CA-2090092-C (CA)
Inventor: MCINNIS EDWIN LEE
IPC: C08F8/00
Filed: 1993-02-22
Granted: 2000-01-11
Abstract: Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine.      Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine.      Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.
Patent CA-2090306-C (CA)
Title: Oil and gas well operation fluid used for the solvation of waxes and asphaltenes, and method of use thereof
Inventor: THORSSEN DONALD A
IPC: C09K8/524
Filed: 1993-02-24
Granted: 1996-12-03
Abstract: A wax and asphaltene solvation fluid for use in oil and gas wells is derived as a residual fluid from a feedstock that includes a greater mass percentage of trimethylbenzene than decane, and is preferably sour. Mass percentage of both aromatics and asphaltenes in the residual fluid is in the 30% - 70% range, and a complex mixture of both is described.
Patent CA-2091165-C (CA)
Title: Polymers containing diester units
Inventor: KLAVENESS JO
IPC: A61K31/765
Filed: 1991-09-07
Granted: 2003-08-19
Abstract: Polymers containing diester units of formula (I), where R1 and R2 each represents a hydrogen atom or a carbon-att-ached monovalent organic group or R1 and R2 together form a carbon-attached divalent organic group, with the proviso that where such units are attached at both ends to carbon atoms and the polymers are polyolefinic, then the polymers are biode-gradable and/or are water-swellable and/or are associated with a biologically active or diagnostic agent.
Patent CA-2106032-C (CA)
Title: Methods for the manufacture of fluconazole and forms thereof, intermediates useful in the manufacture thereof, and combinations comprising fluconazole
Inventor: WEERATUNGA GAMINI
IPC: C07C17/14
Filed: 1993-09-13
Granted: 1995-11-07
Abstract: A process for making Fluconazole comprising the steps of:     an Acid and         Source of Bromine        VII                                                              VIII   heat in the order of about 140 - 160 degrees C                 Source of Bromine   R-CH2COOH wherein R is selected from H and CH3(CH2)n where n = 0 to 4 inclusive IX                                                                 II    appropriate solvent appropriate base   III
Patent CA-2106338-C (CA)
Title: Noise controller
Inventor: TERAI KENICHI
IPC: G10K11/178
Filed: 1993-09-16
Granted: 1999-11-30
Abstract: An active noise controller includes a prediction filter which comprises a delayer for delaying the noise or error detection signal by a predetermined period of time, a first adaptive filter for processing the output of the delayer to deliver its periodic component, and a subtractor for subtracting the output of the first adaptive filter from the noise detection signal to deliver a random component of the signal. More specifically, the prediction filter is capable of dividing the noise or error detection signal into two, periodic and random, components. In addition, two, second and third, adaptive filters are provided for processing the periodic and random components respectively. Accordingly, the second and third adaptive filters become responsive precisely to their respective periodic and random components regardless of the ratio in level between the two components, whereby any undesired noise consisting of the two discrete components will be suppressed.
Patent CA-2108446-C (CA)
Inventor: WALTERS ROBERT N
IPC: B42F7/08
Filed: 1993-10-14
Granted: 1998-12-15
Abstract: An expansion pocket is provided for use with folders, binders or the like which allows large quantities of materials to be securely inserted into theexpansion pocket. The expansion pocket cover member is provided with a series of slits which run along the two adjacent edges of the cover member secured to the folder or ring binder, along with a relief cut-out made in the cover member at the corner defined by these two adjacent sides.
Patent CA-2109330-C (CA)
Inventor: VASSILICOS ACHILLES
IPC: B22D11/10
Filed: 1992-06-01
Granted: 1996-11-26
Abstract: A pouring pad (18) is provided for use in a tundish (10) during sequence continuous casting.  The pouring pad (18) has a plurality of concentric primary ridge portions (23, 24) adjacent to the location of impact of a pouring stream from a ladle with the pad. The primary ridge portions are of a height within a range for creating pockets of recirculation so as to dissipate turbulence without deflection of molten metal from its radially outward flow along the pad.  The radial spacing between  adjacent  primary ridge portions as measured between top inner edge surfaces at corresponding radial points is at least 2.0 times the height of the inner of the adjacent primary ridge portions.
Patent CA-2111717-C (CA)
Title: Device for trimming flat products, especially multi-sheet printed products
Inventor: STAUBER HANS-ULRICH
IPC: B26D7/06
Filed: 1993-12-17
Granted: 2004-07-20
Abstract: An apparatus for trimming folded multi-sheet printed products along the bloom edge and along each of the opposite side edges of each product. The apparatus comprises a first cellular wheel (2) which is mounted for rotation about a vertical axis and which receives the products in upwardly open cells and trims their bloom edges. A second cellular wheel (4) is mounted for rotation about a horizontal axis and receives the products from the first wheel in radially open cells and trims the products along their opposite side edges.        The second cellular wheel (4) is divided, in a plane (40) perpendicular to its rotational axis, into two cellular wheel halves (4', 4 "), which are mounted on respective bearing elements (32). The two bearing elements (32) can be adjusted relative to each other along the central axis (5). The edge trimming blades (36, 39) are mounted to the wheel halves, and thus the relative adjustment of the two cellular wheel halves (4', 4 "), permits the apparatus to be easily adapted to different-format products to be trimmed.
Patent CA-2112418-C (CA)
Title: Automatic riveting machine
Inventor: BOTHA RUEDIGER
IPC: B21J15/10
Filed: 1993-12-24
Granted: 2000-08-22
Abstract: An automatic riveting machine produces squeezed precision rivet connections in any working direction, including an overhead working direction, while using rivets of different lengths. A rivet bore having a precision fit and linear squeezing motions result in a precision rivet connection. The rivets are also pressed into the rivet bore by a linear motion. For this purpose, the automatic riveting machine includes a drilling unit with a drill bit, a lubricator, a rivet supply unit including a rivet feeder pipe and rivet transfer tongs journalled to a journal axis, and a squeezing rivet setter. The rivet transfer unit is held in a fixed position on a support console which in turn is docked to a positioning robot. The drilling unit and the rivet setter are movable along the support console on guides for positioning in a working position or in a back rest position. The riveting arms the rivet setter perform the linear squeezing motion. The upper arm has a rivet clamp for receiving a rivet from the supply unit and for transporting a received rivet into position in alignment with a drilled rivet hole into which the rivet is pressed with a press fit.
Patent CA-2112661-C (CA)
Inventor: INOUE FUJIO
IPC: A61J1/10
Filed: 1993-04-28
Granted: 2002-02-26
Abstract: A vessel having a plurality of chambers for use mainly in the medical field, wherein the interior of the main body of a flexible plastic vessel is partitioned into a plurality of chambers by use of a partitioning means permitting suitable communication between the chambers, out of respective vessel portions of the main body of the plastic vessel, which constitute the plurality of chambers, at least one vessel portion has no cover and at least another vessel portion has a cover, said cover covering the peripheral surface of said vessel portion through a tightly sealed space portion and being formed of flexible film having a moisture-proof and gas barrier properties, so that the easily disposable vessel having the plurality of chambers, which is inexpensive and high in quality and performance can be provided.
Patent CA-2114358-C (CA)
Title: Method for stripping contaminants from wastewater
Inventor: VON KLOCK BYRON
IPC: C02F1/20
Filed: 1994-01-27
Granted: 2000-04-04
Abstract: A method has been discovered for stripping aromatic hydrocarbon contaminants from wastewater and retaining the aromatic hydrocarbons on activated carbon. The wastewater is contacted countercurrently with stripping gas. The stripping gas is passed over a bed of activated carbon to regenerate the stripping gas. The entire volume of stripping gas is recycled to the stripping vessel. There is no purge of stripping gas or aromatic hydrocarbons to the atmosphere. The removed aromatic hydrocarbons are retained by the activated carbon and periodically recovered. An activated carbon particularly adapted for retaining and recovering aromatic hydrocarbons has been found.
Patent CA-2114439-C (CA)
Inventor: ALLEN ANTHONY PETER
IPC: C22B1/244
Filed: 1992-08-03
Granted: 2004-04-27
Abstract: Particulate ore is pelletised by forming an intimate mixture with particulate binder in the presence of moisture, forming green pellets by agitation of the mixture and then firing these to produce ore pellets and the particulate binder comprises particles of a water soluble, partly cross-linked, polymer formed from water soluble, ionic, ethylenically unsaturated monomer or monomer blend, wherein the extent of cross-linking is insufficient to render the particles predominantly water insoluble but is sufficient to increase the dry strength of the ore pellets.
Patent CA-2115734-C (CA)
Title: Method of distributing heat in food containers adapted for microwave cooking and novel container structure
Inventor: MAHEUX DAVID
IPC: B65D81/34
Filed: 1994-02-15
Granted: 1998-10-20
Abstract: An improved technique for uniformly distributing crisping or browning heat supplementation in disposable paper food carton or containers and the like used for microwave cooking, in which metallized susceptor film is employed mounted to butintermediately spaced from the adjacent inner wall of the container to define and seal an air pocket which, in heating, improves the uniformity of the browning result through conviction into air pocket and responsive flexing of the film.