baber/WOPTO huggingface dataset:
Patent CA-2083538-C (CA)
Title: A method and equipment for cleaning waste water
Inventor: SAARENKETO TAPIO
IPC: C02F1/52
Filed: 1992-11-23
Granted: 2005-05-24
Abstract: The invention is concerned with a unique waste water tank or water treatment plant and a method to purify water. The plant has at least one sedimentation space for waste water limited by a wall. The wall of the sedimentation space is made, at least partly, of spirally coiled pipes. These, at least partly, act as flocculation pipes, at the same time providing structural stiffness. In one embodiment the waste water is mixed with a flocculent, and led through a long pipe to the sedimentation space. The waste water separates to form a sludge blanket on the bottom, and clarified water on the surface, which are removed from the space to maintain the liquid and sludge levels within predetermined limits. The waste water with the flocculent is led into the sedimentation space from beneath the sludge blanket while the clarified water is made to move through the sludge blanket.
Patent CA-2084395-C (CA)
Title: Scarfing method and apparatus
Inventor: SHOWALTER MICHAEL S
IPC: B23K7/06
Filed: 1992-12-02
Granted: 1998-08-04
Abstract: A thermochemical scarfing method and apparatus are disclosed which allows a greater diagonal standoff distance from the metal workpiece during preheating.  The method includes preheating the end of the metal workpiece, and then scarfing the workpiece by directing a scarfing oxygen stream onto the workpiece at an acute angle and while moving the workpiece past the oxygen outlet port.  The preheating step includes generating a high speed stream of oxidizing gas and a concentric stream of fuel gas coaxially about the central stream, so that the momentum of the central stream is maintained.  As a result, the effective flame heating distance may be extended, and the manifold and head assembly which supports the preheating gas nozzles may be moved back from the workpiece a significant standoff distance so as to avoid damage from dislodged molten metal slag.
Patent CA-2088650-C (CA)
Title: Cosmetic composition
Inventor: STEER DAVID C
IPC: A61Q19/10
Filed: 1993-02-02
Granted: 1997-11-04
Abstract: A liquid, aqueous shampoo composition, e.g. a hair or body shampoo, comprises:          (a)  as a principal surfactant component, at least one alkyl polyglycoside; and (b)  at  least one short chain fatty acid soap having a carbon chain length of up to C16, preferably C8 to C12.
Patent CA-2089371-C (CA)
Title: Lateral edge coated controlled release pharmaceutical compositions
Inventor: SHAH ASHOK CHANDULAL
IPC: A61K9/22
Filed: 1991-08-13
Granted: 2001-12-25
Abstract: The invention provides a controlled release composition comprising a compressed core containing a drug having two par-allel planar surfaces (i.e, the top and bottom), and a seal coating surrounding the core except on said planar surfaces (i.e. on all lateral surfaces). The seal coating comprises a film coating of an impermeable material.
Patent CA-2091084-C (CA)
Inventor: LAI FU-YUNG Y
IPC: H04L12/28
Filed: 1993-03-05
Granted: 1998-05-12
Abstract: A   terminal   adapter   interfaces   between   a   Data Terminating Equipment (DTE) and either a Frame Relay (FR) or a    Switched    Multimegabit    Data    Service    (SMDS) telecommunications network so that the type of network over which the DTE is communicating is transparent to the DTE. The TA performs mapping from one protocol to another so that a native FR DTE can access an SMDS network and so that a native  SMDS  DTE  can  access  a  FR network.   The  address mapping method performed by the TA uses a parallel table look-up technique which  reduces  the  chance  of  collision (when two or more addresses hash into the same table entry), eliminates the traditional comparison function to detect a collision, and eliminates the traditional pointer technique when a collision occurs.
Patent CA-2091106-C (CA)
Title: Flashlight holder for protective helmets, hardhats, or the like
Inventor: JAMIESON JIM
IPC: F21V21/084
Filed: 1993-03-05
Granted: 1996-02-20
Abstract: The present invention is related to a flashlight holder for protective helmets, hardhats or the like, which may be attached to the helmet by means of standard adaptors or by means of a specially designed separate adaptors. The holder comprises a carrier element adapted to accommodate within its inner walls a standard flashlight, an adjustment means connected to the carrier element and provided to adjust the carrier holding the flashlight in the position required by the protective helmet wearer and a mounting adaptor means connected to the carrier element by the adjustment means and provided to releasably attach the holder to the protective helmet. The holder is attached to the side of the helmet and is made of a non-conductive material. In the preferred embodiment the adjustment means are located at the lower extremity of the carrier and comprises a swivel ball-socket arrangement.
Patent CA-2092229-C (CA)
Title: Dispositif et methode d'exploration sismique
Inventor: STARON PHILIPPE
IPC: G01V1/22
Filed: 1993-03-23
Granted: 2004-08-03
Abstract: On utilise un dispositif de réception de signaux sismiques comportant un très grand nombre de capteurs élémentaires associés chacun à des moyens de réglage, télécommandables depuis une station centrale de commande et d'enregistrement par l'intermédiaire éventuellement de boîtiers d'acquisition de données sismiques répartis sur le terrain, Depuis la station centrale il est possible très rapidement de modifier à tout instant le nombre de capteurs formant chaque trace sismique, les coefficients de pondération des différents signaux élémentaires constituant une trace ou bien encore de commander des pré-traitements des signaux captés avant leur transmission au laboratoire d'enregistrement. En modelant ainsi les caractéristiques du dispositif de réception, on peut simplifier grandement l'interprétation des enregistrements. Application à la prospection sismique terrestre ou dans des puits par exemple.
Patent CA-2092834-C (CA)
Inventor: HANAO SHIRO
IPC: B27N3/00
Filed: 1993-03-29
Granted: 1997-09-16
Abstract: Wood fiber, inorganic cellular material, flame retardant and an organic binder for binding these materials, are mixed together and hot press formed to give a wood based panel.      The resultant panel has a wood like texture, is light weight, has excellent sound absorption properties, and is semi-incombustible, and has a good insulating property for use as a wall or ceiling material.
Patent CA-2093428-C (CA)
Title: Methods for treating cotton-containing fabrics with cellulase
Inventor: CLARKSON KATHLEEN A
IPC: C11D11/00
Filed: 1991-10-04
Granted: 1996-06-11
Abstract: Disclosed are improved methods for treating cotton-containing fabrics as well as the fabrics produced from these methods. In particular, the disclosed methods are directed to contacting cotton-cotaining fabrics with an aqueous solution containing a fungal cellulase composition which comprises one or more EG type components and one or more CBH I components wherein said cellulase composition has a protein weight ratio of all EG type components to all CBH I type components of greater than 5:1. Cotton-containing fabrics so treated possess decreased strength loss as compared to fabrics treated with a cellulase composi-tion containing greater amounts of CBH I type components.
Patent CA-2094415-C (CA)
Inventor: TANJI HIROYUKI
IPC: A61F13/49
Filed: 1993-04-20
Granted: 1998-07-14
Abstract: A method of forming a skin-contacting topsheet of a disposable diaper with an elastic opening, is described.   The method comprises feeding first and second continuous elastic members in a specific orientation to form crests and troughs which are offset from one another.  These elastic members are glued  onto  the  first  continuous  web  and  form  therewith  a composite web.  A second continuous web is bonded on the first web and forms a second continuous composite web.   Part of the second continuous  composite web  is  cut  away  in  a  specific manner so as to form cut-outs destined to define openings and thereby  form  third  and  fourth  continuous  composite  web members.    These  third  and  fourth  web  members  are  shifted longitudinally   so   that   their   respective   crests   are symmetrically  opposed  to  each  other  in  an  overlapping relationship with the troughs also symmetrically opposed to each  other  but  define  openings.    The  third  and  fourth continuous composite web members are cut transversely along imaginary lines vertically dividing the respective pairs of mutually opposed crests in halves.
Patent CA-2094449-C (CA)
Title: Recovery of natural gases from underground coal formations
Inventor: SHIRLEY ARTHUR I
IPC: E21B43/00
Filed: 1993-04-20
Granted: 1996-08-13
Abstract: Methane is produced from a coal seam penetrated by an injection well and a gas production well by first introducing liquefied or gaseous carbon dioxide through the injection well and into the coal seam and subsequently introducing a weakly adsorbable gas through the injection well and into the coal seam. As the weakly absorbable gas passes through the coal seam, it forces the carbon dioxide through the seam. If the carbon dioxide is in liquefied form, it evaporates as it moves through the seam, and the carbon dioxide gas desorbs methane from the coal and sweeps it toward the production well.  The methane is withdrawn from the seam through the production well.
Patent CA-2096823-C (CA)
Title: Electrophoresis with chemically suppressed detection
Inventor: DASGUPTA PURNENDU K
IPC: G01N30/60
Filed: 1992-09-23
Granted: 1995-11-07
Abstract: Improved capillary electrophoresis apparatus of the type that generally includes a capillary tube, the capillary tube having a sample inlet end and an outlet end, a first electrode in electrical communication with the inlet end of the capillary tube, a sec-ond electrode in electrical communication with the outlet end of the capillary tube and a high voltage power supply in electrical communication with the first and second electrodes. The improvement is to connect a miniature Ion Chromatography membrane suppressor to the outlet end of the capillary tube, to connect a conductivity detector to the membrane suppressor and to place the second electrode in the regenerant compartment of the membrane suppressor. The method embodiment of the invention for anion analysis includes the steps of: (a) separating anions of interest by capillary electrophoresis in a buffer solution; (b) exchanging cations of the buffer for regenerant cations using an ion chromatography membrane suppressor to reduce the electrical conductiv-ity of the buffer to produce a suppressed buffer; and (c) measuring the electrical conductivity of the suppressed buffer to deter-mine the separated anions. Similarly, the method embodiment of the invention for cation analysis includes the steps of: (a) sepa-rating cations of interest by capillary electrophoresis in a buffer solution; (b) exchanging anions of the buffer for regenerant anions using a stationary means for exchanging anions thereby reducing the electrical conductivity of the buffer to produce a sup-pressed buffer; and (c) measuring the electrical conductivity of the suppressed buffer to determine the separated cations.
Patent CA-2097593-C (CA)
Title: Method for obtaining phospho-nitrogenous products and products thus obtained
Inventor: ACHARD PATRICK
IPC: C05B1/02
Filed: 1991-12-04
Granted: 1999-08-10
Abstract: PCT No. PCT/FR91/00965 Sec. 371 Date Sep. 15, 1993 Sec. 102(e) Date Sep. 15, 1993 PCT Filed Dec. 4, 1991 PCT Pub. No. WO92/10443 PCT Pub. Date Jun. 25, 1992.The method relates to the production of phospho-nitrogenous products soluble in neutral ammonium citrate and wherein free urea does not remain in significant amount in such products. Most of the free urea is involved in a ureic combination of calcium sulphate. Tricalcic phosphate is reacted with a reactant obtained by mixing sulfuric acid and urea. The process is particularly useful for the manufacture of fertilizers.
Patent CA-2097846-C (CA)
Title: The improvement of the frost-de-icing salt-resistance of concrete constructions
Inventor: JAKLIN HANS
IPC: C04B28/26
Filed: 1993-06-07
Granted: 2000-04-04
Abstract: According to the present invention an aqueous alkali silicate solution, appropriately modified, has been found to be particularly useful in coating of concrete to protect the concrete from winter salt damage. The silicate solution has approximately the following composition: silicic acid~~calculated as SiO2~30 - 32   moles alkali metal ions~     "        Na+1~23 - 24.3 moles C1 - C3 - alcohol~     "        ethanol    2 - 2.1  moles carbonate   "        CO3-2     1.6- 2.1  moles water                      "        at least     400    moles The alkali metal ions are preferably present as sodium or potassium ions. The solution has a viscosity of 10 - 12 mPa.sec. Ethanol is the preferred alcohol.
Patent CA-2104055-C (CA)
Inventor: MISSIMER DALE J
IPC: B01D8/00
Filed: 1993-08-13
Granted: 2001-07-24
Abstract: A vapor recovery apparatus which withdraws multicomponent vapor mixtures from processing apparatus (such as gas sterilizers) by condensation at two or more progressively colder levels while maintaining an appropriate balance between components during steps of capture and phase change. Two cold traps provide progressive partial condensation at multiple temperature levels and serve to reduce input energy requirements at least 50% compared to a single cold level. The components in the recovered mixture may include (a) recyclable ozone depleting, global warming and valuable CFCs or HCFCs, (b) hazardous materials and (c) contaminants such as water vapor and air. The system maintains safe balance of component materials by immediately and constantly draining the condensate from a warmer temperature stage into the liquid holding section of a colder trapping zone. The system separates vestigial air or air used as a carrier gas from the condensed mixture and purges it without an unacceptable release or recyclable materials and also it controls water vapor so that frost or ice can not impair performance. After the cryocondensation procedure, valves isolate the system from the processing apparatus, and the system warms the captured condensate to above room temperature. Warming the condensate pressurizes it for transfer to a vessel used for shipping the captured mixtures for reclaiming and reuse. Opening a drain valve in the second cold trap allows captured condensate to flow from the now higher pressure recovery system to the transport vessel without any mechanical pump. The only mechanical device employed for fluid transfer is a small vacuum pump for evacuation of air stripped of condensible materials.
Patent CA-2105170-C (CA)
Title: Needle shielding device, safety syringe incorporating the same and method of use thereof
Inventor: TALONN DANIEL ANDREAS
IPC: A61M5/31
Filed: 1992-02-27
Granted: 1999-01-05
Abstract: A safety syringe preferably for use on a small diameter syringe (210) and including a needle shield (240) that is slidable between a needle exposing retracted position and a needle protecting extended position and wherein the needle shield is rotatable in the extended position to a locked and extended position. The safety syringe includes a collar (222) mounted on the distal end of the syringe and a plurality of elongate keys (242) on the interior surface of the needle shield. The keys are slidably received in various protrusions and slots (225, 231) on the collar (222) to releaseably retain the needle shield in the retracted and extended positions and to retain the needle shield in the locked and extended position. A needle sheath (264) is also removably mounted on the distal end of the needle shield adjacent to a flange (260) on the needle shield to cover the needle of the syringe when the needle shield is in the initial retracted position.
Patent CA-2106799-C (CA)
Inventor: HENDRIKS IVO G
IPC: B65D71/14
Filed: 1993-09-23
Granted: 1996-08-13
Abstract: A method which comprises sequentially depositing individual shirred food casing strands into a holder, which, when filled, holds the strands in a desired configuration; stretching a tubular resilient plastic film having a stretched diameter large enough to accommodate the configuration and having a relaxed diameter small enough to tightly engage the external surfaces of strands located proximate the external surface of the configuration; inserting the configuration of strands into the tubular resilient plastic film when at least a portion of the film is so stretched and allowing the film to relax to tightly secure the strands in said configuration.      The particular configuration comprises the configuration wherein, in the configuration, each strand has a strand diameter D, said strands being oriented such that central longitudinal axes of the strands are parallel; external surfaces of the strands contact external surfaces of adjacent strands; ends of the strands terminate in approximately the same plane; said plane being perpendicular to the longitudinal axes of the strands, lines passing perpendicularly through the central axes of strands located proximate the external surface of the configuration intersect to form a hexagon; and strands internally within the configuration encompassed by adjacent contact six adjacent strands; and the sides of the hexagon have side lengths such that said lengths vary by less than 1D from each other.
Patent CA-2108757-C (CA)
Title: N-acyl-n-phenyltetrahydrophthalamic acid derivatives, methods of producing same, and herbicides containing same as effective components
Inventor: TAKEMATSU TETSUO
IPC: C07D265/36
Filed: 1993-02-26
Granted: 1996-10-22
Abstract: An N-acyl-N-phenyltetrahydrophthalamic acid derivative represented by general formula (I), a process for producing the same, a herbicide containing the same as the active ingredient, an imidoyl chloride derivative as an intermediate for producing the same, and a process for producing the chloride derivative, wherein R1 represents alkyl, alkenyl, alkynyl, alkoxyalkyl, ha-loalkyl, haloalkenyl, haloalkynyl or cyanoalkyl; R represents lower alkyl or lower haloalkyl; and R3 represents lower al-koxy, lower alkenyloxy, lower alkynyloxy, lower alkoxyalkoxy, (un)substituted benzyloxy, lower haloalkoxy or lower alkox-ycarbonyalkoxy. The herbicide is very useful because it can be widely applied to upland field, lowland field, orchard, pasture, lawn, forest and non-crop land, and is highly safe for crops.
Patent CA-2113662-C (CA)
Inventor: ARROYO CANDIDO JOHN
IPC: G02B6/00
Filed: 1994-01-18
Granted: 2000-10-31
Abstract: The present invention provides a dielectric optical fiber cable which is capable of being remotely detected while buried. Specifically, this invention incorporates magnetic materials into existing superabsorbent tapes which are commonly used to provide water-blocking capabilities in nearly all optical fiber cables. One embodiment of the present invention includes a tape which has been treated with a blend of neodymium iron boron and superabsorbent powders.
Patent CA-2115626-C (CA)
Title: Biomedical electrode having a secured one-piece conductive terminal
Inventor: RIAZZI TIMOTHY JAMES
IPC: A61B5/0408
Filed: 1994-02-14
Granted: 1999-07-20
Abstract: A disposable biomedical electrode having a one piece terminal secured therein without washers, retaining rings or other securement means is provided.  The electrode also includes an electrolytic gel which exhibits greater patient comfort without any decrease in electrical performance.  The gel layer is preferably a hydrogel material formed from an aqueous mixture of polyhydric alcohol, aliphatic diisocyanate terminated prepolymer, polyethylene oxide based polyamine, and sodium chloride.
Patent CA-2122476-C (CA)
Title: Electrosurgical clip applicator
Inventor: NARDELLA PAUL C
IPC: A61B18/12
Filed: 1992-10-14
Granted: 2005-01-11
Abstract: A clip applicating device (10) deploys surgical clips (24) to ligate ducts and/or vessels during surgical procedures. While the clip (24) is deployed the device (10) simultaneously delivers electrosurgical energy to the affected tissue through the clip (24). This causes the clip (24) and the adjacent tissue to be fused together, resulting in more secure surgical clips. The clipping device (10) may be configured either as a bipolar or a monopolar instrument. The clip applicating device (10) has a handle portion (12) with a trigger mechanism (14), and an electrical connector port (18). The connector port (18) is able to be connected to insulated wire (20) which communicates electrosurgical energy from generator (26). The generator (26) is also connected to ground element (34) through conductive wire (36). The energy is delivered to the jaws (22a, 22b) through barrel (16) by activating switch (30).
Patent CA-2123483-C (CA)
Title: Method and apparatus for forming articles made of polyurethane
Inventor: CARSON SCOTT
IPC: C08G18/08
Filed: 1993-01-05
Granted: 1998-08-18
Abstract: 2123483 9314137 PCTABS00024 A method and apparatus for forming articles made of polyurethane.  The apparatus (10) includes a polyol weigh tank (12), an isocyanate weigh tank (20), an additive tank (26) and a mix tank (16) enclosed by a vent chamber (50). The vent chamber (50) is in communication with inlet (58) and outlet (60) pipes to move air and fumes from the interior of the vent chamber (50) past a filter (64).  The apparatus (10) further includes a containment vessel (80) also having inlet (88) and outlet (90) pipes for movement of air and fumes. The containment vessel (80) is in communication with a pump (P) for creating a vacuum in the vessel (80) to reduce pressure in the interior of the vessel (80) in which a mold (110) is placed. The method includes the steps of: creating a vacuum around a mixture of at least one polyol, at least one isocyanate and at least one additive, to lower the pressure on the mixture below atmospheric pressure as the mixture expands; allowing the mixture to expand; reducing the vacuum to increase the pressure on the mixture in proportion to any further expansion of the mixture caused by the generation of a blowing influence in the mixture; and returning the pressure to atmospheric pressure.
Patent CA-2128886-C (CA)
Title: Hand-actuated retention catheter
Inventor: CONWAY ANTHONY J
IPC: A61M25/00
Filed: 1993-01-29
Granted: 2005-12-27
Abstract: A hand-actuated retention catheter (5) is disclosed. The retention catheter includes a tube (12), an overcoat layer (14} encircling the tube (12) and a cavity (16) interposed between the tube (12) and the overcoat layer (14). The cavity (16) encircles the tube and includes a bulbous balloon portion (24) and an enlarged fluid reservoir portion (22) interconnected and separated by a catheter sleeve portion (26) which has a narrowed outside diameter. The expandable balloon portion (24) can be expanded by compressing the fluid reservoir portion (22). Methods of making the hand-actuated retention catheter and methods of using the same are also disclosed.
Patent CA-2131880-C (CA)
Title: Vector quantizer
Inventor: ONO SHIGERU
IPC: G10L19/00
Filed: 1994-09-12
Granted: 1998-11-17
Abstract: A vector quantizer is disclosed which performs low bit rate coding of time sequential signals such as speech signals and image signals. Means are provided for providing a basis vector set consisting of basis vectors greater in number than a predetermined number of bits and correspondingly forming, from the basis vector set, subsets corresponding in number to at most a predetermined number of bits.  The subsets thus formed include those consisting of at most a single basis vector and coefficient vector subsets formed from the coefficient vector set and determined according to the formed basis vector subsets.