baber/WOPTO huggingface dataset:
Patent CA-2046107-C (CA)
Title: Laterally and vertically staggered horizontal well hydrocarbon recovery method
Inventor: BRANNAN GERYL O
IPC: E21B43/30
Filed: 1991-07-03
Granted: 1994-12-06
Abstract: A  method  which  combines  fluid  drive  and  gravity drainage  to  produce  hydrocarbons  from  a  subterranean formation comprises injecting a fluid through at least two upper horizontal wells out into the formation for moving hydrocarbons from the formation into at least one lower horizontal well through which the hydrocarbons are produced, wherein each lower horizontal well is spaced laterally and vertically below and between two respective upper horizontal wells; and producing hydrocarbons through the at least one lower horizontal well at a cumulative rate faster than the cumulative  rate  of  the  fluid  injected  into  the upper horizontal wells.  The method further comprises injecting a fluid and producing hydrocarbons as just described but with additional upper and lower horizontal wells longitudinally spaced from the first-mentioned upper and lower horizontal wells so that each of the lower horizontal wells operates as a discrete production well.
Patent CA-2050026-C (CA)
Inventor: HAVENS MARVIN R
IPC: B29C48/08
Filed: 1991-08-27
Granted: 2001-04-17
Abstract: Striped films of the invention can have two or more preferably polymeric layers, of which at least one continuous or discontinuous layer includes a pigmented resin. The striped film is produced by modifying conventional coextrusion dies to restrict the flow of a pigmented melt stream. The result is a striped film useful for identifying the contents of a package made from the film, tamper evidence, counterfeit protection and verification of properties.      The stripes can be of one or more colors, and vary in width and spacing. The pigment can be a material visible in ordinary light, or a material invisible in ordinary light but visible in e.g. ultraviolet light.
Patent CA-2052277-C (CA)
Title: Hand operated sprayer with multiple fluid containers
Inventor: PROCTOR RUDY R
IPC: B05B11/00
Filed: 1991-09-25
Granted: 2003-01-07
Abstract: A dispensing device or trigger sprayer which selectively draws fluid out from at least two containers, mixes the fluids in a desired concentration or ratio and expels the mixture of fluids out a nozzle. The trigger sprayer is equipped with a metering device for variably controlling the ratio of the fluids being mixed. The containers or bottles connected to the trigger sprayer are selectively detachable for refilling a container with fluid or exchanging one of the containers with another container having an alternate fluid.
Patent CA-2057219-C (CA)
Title: Packoff nipple
Inventor: MCLEOD RODERICK D
IPC: E21B33/126
Filed: 1991-12-06
Granted: 1994-11-22
Abstract: A packoff nipple for use on the mandrel of a wellhead isolation tool features a two step extrusion sealing  arrangement  activated  by  a  primary  element forcing the expansion of a packing ring to fill voids in the tubing or casing brought about by pipe erosion, corrosion, out of round or off center mandrel conditions. Extremely  high  pressures  are  sealed  off  from  the wellhead.  The  packoff  nipple  sealing  elements  are protected from damage when running the nipple through restricted areas  in the wellhead and the tubing or casing.
Patent CA-2062444-C (CA)
Title: Turbine exhaust arrangement for improved efficiency
Inventor: SILVESTRI GEORGE JOSEPH JR
IPC: F01D3/02
Filed: 1992-03-06
Granted: 2004-11-02
Abstract: Steam exhaust outlets of a low pressure steam turbine are fitted with a divider plate to separate exhaust steam into isolated flow paths in fluid communication with a condenser. Separation of the flow paths is maintained through the condenser so that heat rate is improved by lower average back pressure and higher temperature condensate exiting the condenser. In a double flow turbine, a further divider plate separates steam from one exhaust outlet from that of the other exhaust outlet thereby creating four steam flow paths to the condenser.
Patent CA-2063825-C (CA)
Title: Magnetic head suspension apparatus for use with photographic film
Inventor: DEMARTI JACK C JR
IPC: G11B5/48
Filed: 1990-08-07
Granted: 1994-11-08
Abstract: A head suspension system for use in a photofinishing operation com-prises a fixed support (14) and a pair of magnetic head suspension assemblies (10, 12) each rotatably mounted on the support. A spring (56) causes surfaces (54) of the suspension assemblies to engage opposite edges of the film respec-tively. Each head suspension assembly (10, 12) is rotatable relative to the sup-port (14) to compensate for film width variations and film edge irregularities to insure constant orientation of the magnetic heads (24) with respect to the film edges.
Patent CA-2068517-C (CA)
Title: Preform for polyester bottle
Inventor: MREIJEN HUBERTUS
IPC: B65D1/00
Filed: 1990-09-13
Granted: 2001-01-16
Abstract: The invention relates to a preform for a polyester bottle, having applied to its surface a coating of a material that lowers the coefficient of friction of the polyester and to a method of producing a preform for a polyester bottle, provided with a coating of a material that lowers the coefficient of friction of the polyester used, comprising producing a preform by means of extrusion or injection moulding, followed by applying said coating to the preform.
Patent CA-2070219-C (CA)
Title: Pie or pastry crust
Inventor: MOORE KATHERINE LOUISE
IPC: A21D13/16
Filed: 1992-06-02
Granted: 1997-10-14
Abstract: This invention relates to a pie or pastry dough, which provides a flaky tender pie crust when baked.  The product is a laminate of two phases, a dough like mixture of flour, water, salt and oil, and a shortening and starch phase.  One or both phases can contain a polyol.  These phases are laminated to make a heterogeneous pastry dough which has a flaky tender texture when baked.  The dough is characterized by having multiple, discontinuous layers which are interrupted by regions of gluten and the starch/fat/polyol phase, an increased dough strength and less water absorption over 24 hours.
Patent CA-2073142-C (CA)
Title: Thermochromic laminate member, and composition and sheet for producing the same
Inventor: SHIBAHASHI YUTAKA
IPC: A45D31/00
Filed: 1992-07-03
Granted: 1999-09-28
Abstract: A thermochromic laminate member capable of reversible change from a metallic luster color to a colorless state, comprises a first layer for regulating the wavelength of reflected light, composed of a metal luster pigment, which consists of natural mica surfacially covered with titanium oxide and has a grain size of 5 to 100 µm, and a film forming material; and a second layer composed of a thermochromic material, which consists of an electron donating compound, an electron accepting compound, and an organic medium enabling a reversible color-forming reaction between said compounds and has a luminocity value of 6 or lower in the colored state and a luminocity value of 8 or higher in the colorless state, and a film forming material.
Patent CA-2073614-C (CA)
Title: Shut-off seal for a rotatable shaft
Inventor: LARKINS DAVID J
IPC: F16J15/00
Filed: 1992-07-10
Granted: 2003-05-06
Abstract: A shut-off seal for a rotatable shaft penetrating a fluid-holding tank through an opening below the fluid surface. The shut-off seal has a collar secured to the shaft inside the tank and a positionable annular shut-off ring which may be moved into engagement with the collar.      The invention enables leakage-free shutdown for servicing an associated rotary seal without moving the rotary seal axially along the shaft.
Patent CA-2076976-C (CA)
Title: Private telephone system with simplified command feature
Inventor: DAS TAPAN KUMAR
IPC: H04M19/00
Filed: 1991-04-17
Granted: 1996-09-24
Abstract: A line interface circuit supplies energizing direct current from a power source via tip and ring leads of a two wire communications line connected with a telephone apparatus, and also couples alternating current signals between the telephone line and an associated telephone facility.  The line interface circuit is provided with tip and ring terminals for connection to the tip and ring leads, and power terminals for connection to the power source.  Coupling circuitry is connected in series with the tip and ring terminals for providing paths for the energizing direct current and for the alternating current signals. An active tip feed circuit is connected in series between the tip terminal and the coupling circuitry for providing a tip feed path having a predetermined resistance while the telephone apparatus is in an OFF HOOK state and having a much higher resistance in response to an excess of voltage at the tip terminal.  An active ring feed circuit is connected in series between the ring terminal and the coupling circuitry for providing a ring feed path having a predetermined resistance while the telephone apparatus is in the OFF HOOK state and having a much higher resistance in response to an excess of voltage at the ring terminal.
Patent CA-2080973-C (CA)
Title: Stackable drawer system
Inventor: ROMICK JEROME M
IPC: A47B88/00
Filed: 1992-10-20
Granted: 1999-08-24
Abstract: STACKABLE DRAWER SYSTEM            ABSTRACT OF THE DISCLOSURE        A base drawer which has been modified to allow non-permanent attachment of an extender to increase the vertical dimension of the drawer. Additional extenders can be stacked one on top of the other, in order to increase the vertical dimension of the drawer to any height desired. In one embodiment, the base drawer has three receptacles along the top edge of its two side walls, and each extender has three matching locking prongs along the lower edge of its two side walls as well as three receptacles along the upper edge of each side wall which allow extenders to be stacked one on top of the other. When one or more extenders are attached to a base drawer (i.e., receptacles and prongs are interlocked), the receptacles and prongs on each side of the resulting stackable drawer assembly are in line.
Patent CA-2081043-C (CA)
Title: Antitumor vaccines comprising il-6 transfected cells
Inventor: FELDMAN MICHAEL
IPC: A61K39/39
Filed: 1992-10-21
Granted: 2006-01-10
Abstract: An anti-tumor vaccine includes cells into which a gene encoding human IL-6 has been inserted. A method of treatment of a patient suffering from cancer to prevent and/or inhibit the development of metastases by administering to the patient the anti-tumor vaccine including the above mentioned cells is provided.
Patent CA-2081784-C (CA)
Inventor: ARAMAKI TOSHIYA
IPC: H04L12/54
Filed: 1992-10-30
Granted: 1998-06-09
Abstract: In a packet switching system having input ports (20-1-1 to 20-8-8) supplied with input packets and output ports (21-1-1 to 21-8-8) producing output packets, each of time stampers (22-1-1 to 22-8-8) connected to the input ports assigns a time stamp to the input packet supplied thereto to produce a time stamped packet.          Connected to the time stampers, each of primary switches (23-1 to 23-8) carries out a primary switching operation on the time stamped packets supplied thereto so as to connect input lines thereof and output lines thereof in one-to-one correspondence to produce primary switched packets.  Connected to the primary switches in a cross link connection fashion, each of secondary switches (24-1 to 24-8) carries out a secondary switching operation on the primary switched packets on the basis of destination addresses thereof in sequence to produce secondary switched packets.  Connected to the secondary switches in the cross link connection fashion, each of ternary switches (25-1 to 25-8) corrects sequence of the secondary switched packets on the basis of the time stamps assigned thereto to produce sequence corrected packets and then carries out a ternary switching operation on the sequence corrected packets on the basis of the destination addresses thereof to produce ternary switched packets.  Each output port produces each ternary switched packet as each output port.
Patent CA-2084977-C (CA)
Title: Skinning apparatus
Inventor: DESPOINTES SIMON HUYGHUES
IPC: A22C25/17
Filed: 1992-12-09
Granted: 1997-05-20
Abstract: A  skinning  machine  for  removing  a  layer  of predetermined thickness from a body.   The skinning machine comprising a downwardly sloping first table with feeding means  to feed the body to a cutting station where a blade removes the layer from the body and a discharge station.
Patent CA-2087184-C (CA)
Title: Implant with pressing surface
Inventor: DURR WALTER
IPC: A61B17/58
Filed: 1992-04-07
Granted: 1996-10-29
Abstract: Implant with a basic body which can be implanted into bone mate-rial having an internal thread to take an implant post, an implant exten-sion, a post for attachments or the like via a screw connection, in which there is a pressure surface substantially transverse to the axis of the basic body and extending beyond its transverse section on the basic body or connectable thereto.
Patent CA-2092462-C (CA)
Title: Winder for rewinding a web, especially a paper web
Inventor: FISSMANN HANS-JOACHIM
IPC: B65H18/20
Filed: 1993-03-25
Granted: 2000-10-24
Abstract: This invention rollers to a winder for rewinding a running paper web with the following features: 1.1 Two support rollers that together form a winding bed to hold the paper roll; 1.2 The paper web is wound around one of the support rollers during operation; 1.3 The other of the two support rollers is lower than the first support roller so that a plane through the axes of the two support rollers from an angle with the horizonal.      The invention is characterized by the following features: 1.4 The winding bed is exclusively of the support rollers 1.5 The second support roller has a liner that is considerably more deformable than the liner of the second support roller; 1.6 The two support roller are fixed in location
Patent CA-2092561-C (CA)
Title: Compositions detergentes renfermant des surfactifs anioniques, des amides d'acides gras polyhydroxyles et un agent ameliorant le savonnage, judicieusement choisi
Inventor: MAO MARK H
IPC: C11D3/00
Filed: 1991-09-25
Granted: 1998-01-20
Abstract: Compositions détergentes renfermant un ou plusieurs sulfates ou sulfonates anioniques surfactifs; un ou plusieurs amides d'acides gras polyhydroxylés de formule (I), où R1 est H ou un groupe hydrocarboné C1-C4, 2-hydroxyéthyle, 2-hydroxypropyle, ou un mélange de ceux-ci, R2 est un groupe hydrocarboné C5-C31, et Z est un groupe polyhydroxyhydrocarboné à chaîne hydrocarbonée linéaire, avec au moins 3 hydroxyles liés directement à la chaîne, ou un dérivé alcoxylé de ce groupe; et un agent soigneusement choisi, améliorant le moussage. L'invention présente également une méthode pour nettoyer la vaisselle à l'aide de ces compositions.
Patent CA-2097071-C (CA)
Title: A process for preparing dinitrotoluene
Inventor: QUAKENBUSH ALLEN B
IPC: C07C201/08
Filed: 1991-10-24
Granted: 2002-06-18
Abstract: Described herein is a continuous one pot process for the production of dinitrotoluene by: a) reacting toluene with concen-trated nitric acid to produce a product mixture containing dinitrotoluene, unreacted nitric acid and water; b) then mixing the pro-duct mixture from step (a) with a substantially dehydrated molten nitrate salt; c) then adding additional nitric acid to the mixture of step (b); d) then separating nitric acid from the mixture from step c) in the form of a vapor to form a two phase liquid mixture; e) then separating the dinitrotoluene phase from the liquid hydrated salt phase; f) then treating the acid vapor from step d) and the hydrated salt-liquid phase of step (e) to separate and concentrate nitric acid for recycle to step (a); g) dehydrating the nitrate salt solution; and h) recycling the dehydrated nitrate salt to step (b).
Patent CA-2099041-C (CA)
Inventor: NENCINI PIERGIORGIO
IPC: C01F11/46
Filed: 1993-06-23
Granted: 2003-09-09
Abstract: A simple process for preparing acicular calcium sulphate dehydrate is provided in which a slurry of calcium carbonate containing 100 to 800 grams per litre calcium carbonate is mixed with a solution of sulphuric acid containing 80 to 500 grams per litre sulphuric acid in proportions which produce a calcium sulphate slurry having a pH from 0.5 to 1.5. The process can be used to neutralise by-product sulphuric acid from the preparation of titanium dioxide with crushed limestone. Preferably the calcium sulphate slurry is stirred after formation to reduce the level of unreacted carbonate. The calcium sulphate produced has an aspect ratio of at least 4:1 and has excellent properties for use in paper. The process enables the production of acicular calcium sulphate without employing special crystallisation procedures.
Patent CA-2103580-C (CA)
Title: Orthomolecular method of treating sickle cell disease
Inventor: WILBURN MICHAEL
IPC: C07H19/167
Filed: 1992-01-31
Granted: 2002-11-26
Abstract: A method for preventing the sickling of sickle cells in a patient having sickle cell disease, the method which comprises ad-ministering to the patient a therapeutically effective amount of a compound having formula (I) wherein X- is selected from the group consisting of iodide, chloride, bromide, hydroxyl, nitrite, phosphate and acetate.
Patent CA-2104170-C (CA)
Title: Beverage containers
Inventor: RIGNEY PATRICK
IPC: B65D21/02
Filed: 1993-08-16
Granted: 2005-10-11
Abstract: A liquid container 1 comprises a larger glass bottle 2 and a smaller glass bottle 3 which are separately formed and adhesively bonded together. A base 11 of the smaller bottle 3 is spaced slightly above the base 10 of the larger bottle 2 so that in use, the base 10 of the larger bottle 2 forms a standing surface for the container 1 to prevent rocking.
Patent CA-2107932-C (CA)
Title: Handle bag
Inventor: MALDOFF GERALD
IPC: B65D33/00
Filed: 1993-10-07
Granted: 1996-12-24
Abstract: A T-shirt bag pack having apertures in the lateral handles for suspending the T-shirt bag pack from laterally spaced-apart support rods on a support rack.  Each of the handles has an aperture formed by a cold punch leaving a peripheral edge of the aperture securely bonded to an adjacent handle section such that the apertures remain in registry when the bag pack is being handled and the adjacent sections remain retained to adjacent handle sections.
Patent CA-2110645-C (CA)
Inventor: CELLARIO LUCA
IPC: G10L19/12
Filed: 1993-12-03
Granted: 1998-06-16
Abstract: An optimum excitation signal for each subframe is determined in a speech coder based on analysis-by- synthesis techniques and operating  on  frames  of  samples  divided  into  a  number  of subframes. The excitation signal includes a shape contribution (innovation)  and an amplitude contribution  (gain)  which are quantized  separately.  A circuit       for  gain  quantization includes  means       for determining a gain  index  for each subframe;  a comparison logic network        for detecting the maximum value taken by the gain index in the frame; and means for  computing  a  normalized  index  for  each  subframe  as  a difference  between  the   maximum index  and  the  gain  index relevant to that subframe. The coded signal includes the coded values of the  maximum index  and of the normalized indexes as information on the gain relevant to a frame.
Patent CA-2120224-C (CA)
Title: Polyurethane thickener compositions and their use for thickening aqueous systems
Inventor: THIES UWE
IPC: C09D7/45
Filed: 1994-03-29
Granted: 2006-03-14
Abstract: The present invention is directed to a thickener composition for thickening aqueous systems which contains a mixture of a) a water-soluble or water-dispersible thickener containing urethane groups, b) a non-ionic emulsifier and c) a compound corresponding to the formula (see formula I) wherein R1 and R3 may be the same or different and represent hydrocarbon radicals and R2 and R4 may be the same of different and represent hydrogen or hydrocarbon radicals, Q represents alkylene oxide units obtained by the alkoxylation of alcohols with alkylene oxides having 2 to 4 carbon atoms, and n represents a number from 0 to 120.        The invention also relates to the use of this thickener composition as a thickener for aqueous systems.
Patent CA-2124844-C (CA)
Title: Flatness measuring roller for a continous web
Inventor: JEUNIAUX FRANCOIS
IPC: G01B11/24
Filed: 1992-12-02
Granted: 2002-04-16
Abstract: A roller is rotatably mounted about its axis and comprises a hollow, cylindrical roll face, a ring and two hollow shafts. The roller is provided with a force measuring fiber optical device which uses the double refraction in an optical fiber subjected to a lateral force. The optical fibers of the measuring device form coils, each having at least one turn and the cylindrical roll face.
Patent CA-2132566-C (CA)
Title: Flashlight wand attachment
Inventor: PASCH RICKY C
IPC: F21L4/00
Filed: 1994-09-21
Granted: 2002-09-10
Abstract: A flashlight wand attachment including a wand member having a truncated generally conical portion and an opposing member. The attachment also includes threads for fastening the wand member to the opposing member when the wand member is disposed at one end of a wide portion or lamp housing of a handy member or flashlight, and the opposing member is disposed at an opposite end of the wide portion or lamp housing. Fastening the wand member to the opposing member in this way operably connects the wand attachment to the handle member. The present invention also includes a method of attaching a wand attachment to a flashlight.
Patent CA-2134814-C (CA)
Inventor: NOBLE GARDINER A
IPC: F02P5/152
Filed: 1994-11-01
Granted: 2002-06-25
Abstract: An engine ignition and control system for an internal combustion engine. The system includes an ignition transformer mounted directly to a spark plug and adapted to rapidly re-fire the spark plug during a combustion cycle enabling the performance of various ignition diagnostic procedures. A controller provides signals to a circuit which causes charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit, connected to the transformer, which can detect the occurrence of electrical discharges across the spark plug electrodes as a result of the diagnostic charges. The detection circuit either outputs a signal ar omits a signal to the controller which allows the controller to diagnose conditions within the combustion cylinder. Additionally, the diagnostic circuit is capable of outputting a signal which can be correlated to the load on the engine.
Patent CA-2138041-C (CA)
Title: Process for the production of a two-coat finish, and powder coatings suitable for this process
Inventor: KRANIG WOLFGANG
IPC: C09D167/02
Filed: 1993-06-23
Granted: 2004-02-24
Abstract: The invention relates to a process for the production of two-coat finishes, in which a pigmented basecoat is first applied, the resulting basecoat film is coated with a powder clearcoat, and basecoat and clearcoat are subsequently baked together. In accordance with the invention, the powder clearcoat employed is a powder coating which contains an epoxide group-containing polyacrylate resin as binder and a mixture of (A) a polyanhydride and (B) a carboxyl group-containing polyester resin as crosslinking agent.      The polyester resin can be prepared by reacting a diol (b1), a compound (b2) which contains per molecule at least three functional groups selected from hydroxyl, primary amino, secondary amino, carboxyl and acid anhydride groups, and (b3) a dicarboxylic acid in a molar ratio of (b1) : (b2) : (b3) = 0.0 to 3.0 : 1.0 : 1.5 to 9.0 to give a polyester resin having an acid value of 40 to 300.