baber/WOPTO huggingface dataset:
Patent CA-2040840-C (CA)
Title: Recycle spray gas-liquid contactor
Inventor: LERNER BERNARD J
IPC: B01D47/00
Filed: 1991-04-19
Granted: 2000-03-07
Abstract: This invention relates to a novel gas-liquid contacting apparatus and method utilizing recycle spray contact trays disposed within a substantially vertical vessel. Each contact tray contains one or more housings defined by upstanding vertical wall members, said housings being open to gas flow at top and bottom. Within the housings, liquid spray is continuously generated by means of gas flowing upward past a first array of horizontally spaced-apart gas venturi-generating liquid conductors. Liquid flows from the tray floor outside the housing through the liquid conductors, is distributed into the gas, and is entrained upward as spray by the gas venturi action. Horizontally-disposed foraminous or perforated flow-restrictive elements, vertically spaced apart, mounted on top of the housing, cause the liquid spray to coalesce and regenerate at the first flow-restrictive barrier element which occupies the cross-sectional area of the vertical housing. A mayor portion of the gas and contained spray is then caused to flow laterally, normal to the upward gas flow direction, through the high-voidage space between the elements. The flow-restrictive elements are comprised of foraminous or perforated plate or tubes, or anisotropic material such as layered mesh. The spray issuing laterally impinges on the vessel walls and liquid therefrom drains downward or falls by gravity to the tray floor, where the process is repeated. The method of invention encompasses spray contacting with automatic and continuous recirculation of liquid spray in a controlled manner at rates that are multiples of the liquid throughput rate, and is capable of operation at high gas velocities and low pressure drop.
Patent CA-2046128-C (CA)
Title: Method of purifying ferment-produced riboflavin
Inventor: GRIMMER JOHANNES
IPC: C12P17/18
Filed: 1991-07-03
Granted: 2001-05-08
Abstract: A method of purifying ferment-produced riboflavin, wherein the impure riboflavin is suspended in water or dilute aqueous acid, and the suspension is heated at a temperature of from 75° to 130°C for from 0,3 to 3 hours with stirring, during which time crystal transformation takes place, after which the mixture is cooled and the purified product is isolated in known manner.
Patent CA-2048560-C (CA)
Inventor: WATANABE HIROKAZU
IPC: A44B17/00
Filed: 1991-08-07
Granted: 1995-10-24
Abstract: A snap button for attachment to a garment fabric comprises a socket member, a plug member snappingly engageable therewith and a spring member accommodated in the socket.  The socket member includes a cylindrical hub and a bottomless collet having an annular flange which has a plurality of ridges adapted to be folded radially inwardly over the spring and over the hub, respectively.
Patent CA-2049196-C (CA)
Title: Ink jet recording apparatus using the thermal energy and recovery method therefor
Inventor: EBISAWA ISAO
IPC: B41J2/165
Filed: 1991-08-14
Granted: 1997-03-18
Abstract: A recovery method for an ink jet recording apparatus comprising recording means for recording by discharging the ink with bubbles formed by the thermal energy applied to a heat acting area in an ink holding portion, and energy supply means for forming said thermal energy on said recording means, including a compulsory recovery mode in which more than 103 predischarges are accomplished by supplying the energy exceeding 1.48 times the minimum energy Eo necessary for producing said bubbles.
Patent CA-2056952-C (CA)
Title: Catalyst for purifying exhaust gas
Inventor: INOUE SHUNJI
IPC: B01J29/064
Filed: 1991-12-04
Granted: 2000-10-10
Abstract: A catalyst for purifying an exhaust gas comprising: a crystalline aluminosilicate containing a rare earth or alkaline earth metal produced by allowing a rare earth or alkaline earth metal salt to exist in reactants for a synthesis of a crystalline aluminosilicate, and introduced therein, at least one element selected from the consisting of the group Ib metals and VIII metals of the periodic table.
Patent CA-2061254-C (CA)
Title: Planar antennas
Inventor: ZUERCHER JEAN FRANCOIS
IPC: H01Q13/08
Filed: 1992-02-14
Granted: 2001-07-03
Abstract: A flat antenna is disclosed which consists of a substrate having applied thereto an electrically conductive elements, or patches, in a pattern and a metal layer having a slot pattern aligned with the patches, as well as a distribution network mounted on both sides thereof a layer of foamed material. The antenna further includes a reflector consisting of a metal plate. The external surface of the antenna, consisting of a glass substrate surface, can easily be cleaned. Such an antenna can be manufactured inexpensively by using glass and a foamed material.      The various patch patterns can be created by screen printing or metallization. The propagation pattern may be shaped as desired the antenna constructed according to the present invention.
Patent CA-2073149-C (CA)
Title: Method of formulating dairy cow rations based on rumen-available protein and rumen-available carbohydrate
Inventor: NOCEK JAMES E
IPC: A23K1/18
Filed: 1992-07-03
Granted: 1996-12-17
Abstract: A method of formulating dairy cow rations based on the amounts  of ruminally  available  protein  (RAP)  and carbohydrates  (RAC)  in  the  total  daily  ration,  which includes both grain and forage components.   Quantities necessary  for  determining  RAP  and  RAC  values  are obtained from conventional chemical analysis and in situ techniques.    Statistical  analysis  of  experimentally obtained  data  showed  optimized  lactation  response  is obtained from a total  daily ration containing RAP and RAC  in  the  ranges  of about  10.5 -  12.5% and  35.0 -45.0%,   respectively.     Other  important  nutritional factors  such  as  microbial  synthesis  and  feed  escape protein were also shown to be optimized by total daily rations containg RAP and RAC levels within or near the lactation optimization ranges.
Patent CA-2076347-C (CA)
Title: Improved antibody-enzyme direct conjugates and method of making same
Inventor: GUPTA RAVINDER K
IPC: C07K19/00
Filed: 1991-02-12
Granted: 1996-11-26
Abstract: A direct antibody-enzyme conjugate which enzyme to antibody ratio is approximately 3. The method of producing the di-rect antibody-enzyme conjugate comprises adding sulfhydral groups to the antibody and maleimide groups to an enzyme and then conjugating the so-modified antibody and enzyme.
Patent CA-2078685-C (CA)
Title: Process and device for detecting the load angle of a generator connected to an electric supply network
Inventor: LERCH EDWIN
IPC: H02J3/24
Filed: 1990-03-21
Granted: 1996-07-09
Abstract: Critical fluctuations in the real power can occur between the generator (3) and the supply network (2) in an electrical supply network (2) which contains a genera-tor (3). It is valid to determine the load angle of the ganerator (3) as a measure for these fluctuations in the real power. It is proposed according to the invention to measure the real and reactive power flow P and Q and the voltage V on a line (1) to the generator (3), and to feed the measured values together with the reactance values YL and YQ of the yenerator and of the line to a computing device (5) in order to solve a mathematical relationship in which an output signal .delta. is formed which is used as an angular measure for the load angle or of fluctuations in the real power. The output signal .delta. is fed to an indicat-ing device (5c) and/or to a control device (12) of a reactive power compensator (6).
Patent CA-2081956-C (CA)
Title: Apparatus for reburning ash material of a previously burned primary fuel
Inventor: PIEKOS STANLEY J
IPC: F23J3/06
Filed: 1992-11-02
Granted: 1995-10-31
Abstract: Apparatus for reburning ash material of a pre-viously burned primary fuel includes a reburn combustion vessel having an inlet for receiving ash material from a primary combustion unit such as a boiler or furnace and an outlet for discharging the products of combustion from the vessel produced from burning the ash material. The outlet of the ash reburn vessel is connected to the primary combustion unit at an elevated height above the firing level.  The reburned ash material moves in a com-bustion path or loop that is in parallel with at least a portion of the combustion path of the primary fuel in the primary combustion unit.  A floor is provided in the ash reburn vessel for supporting a discrete bubbling bed of burning ash material and the floor includes a plural-ity of spaced apart openings distributed relatively uni-formly over substantially all of the area of the floor. Combustion air is introduced into the reburn vessel at a relatively low velocity to provide a source of underfire combustion air for the bubbling bed.  Combustion air is also introduced at an upper level in the vessel above the bubbling bed to provide an overfire source of com-bustion for the upwardly moving unburned components of ash material carried along with the products of combus-tion rising out of the bubbling bed.  The bubbling bed includes an air injector assembly in each of the floor openings comprising a central conduit that is open at its upper end above the level of the floor and a bubble cap is mounted over the end of the conduit for directing incoming combustion air downwardly towards the adjacent floor to form gas bubbles that tend to float or rise upwardly in the burning bed of ash material of the bub-bling bed.  A control system is provided for sensing the temperature of the products of combustion of the reburn vessel and for sensing the height of the discrete bub-bling bed of burning ash material above the floor so that the flow of combustion air is selectively control-lable in response to the sensory inputs.
Patent CA-2086393-C (CA)
Title: Method of continuous modulation of a fluid flow rate by means of an electrically controlled sequential valve
Inventor: MESLIF ALAIN
IPC: G05D7/06
Filed: 1992-12-29
Granted: 2003-07-01
Abstract: A method of continuously modulating a fluid flow rate by means of an electrically controlled sequential valve, consisting in reciprocating the electrically controlled valve provided in a passageway conveying the fluid towards an apparatus to be fed therewith, between a position opening and a position closing said passageway, the frequency of the displacements towards either one of the valve positions being constant whereas the period of holding of the valve in the other position varies in accordance with the flow rate to be obtained, the method being applicable to the adjustement of the flow rate of a fluid such as a gas for a cooking apparatus for instance.
Patent CA-2095407-C (CA)
Title: Modular luminaire assembly
Inventor: EWING ROBERT L
IPC: F21Y101/00
Filed: 1993-05-03
Granted: 1998-08-18
Abstract: A modular luminaire assembly for receiving assorted optical  assemblies  and assorted electrical assemblies.  The modular luminaire assembly includes a base unit having an opening on one side and a platform for receiving and supporting a selected optical assembly, and a removable panel assembly mountable within the base opening.  The panel assembly is adapted to receive and support a selected electrical assembly.  The base unit, optical assembly, and panel assembly form respective first, second and third unitary modules.
Patent CA-2100192-C (CA)
Inventor: PETERSON A LESLIE
IPC: C08G18/76
Filed: 1993-07-09
Granted: 2004-09-21
Abstract: In accordance with the foregoing, the present invention encompasses an improved process for the production of flexible polyurethane foams by the reaction of a polyol and water with polyisocyanate in the presence of a blowing agent, the improvement wherein the polyisocyanate comprises toluene diisocyanate having a 2,4-isomer to 2,6-isomer ratio is greater than 80:20.      In a presently preferred embodiment, the invention encompasses an improved process for increasing softness of flexible foams by reacting a secondary hydroxyl terminated polyol with a polyisocyanate in the pre-sence of a blowing agent, the improvement comprising the blowing agent consisting essentially of carbon dioxide derived from the polyisocyanate/ water reaction, a substantially low amount of an auxiliary blowing agent, and the polyisocyanate comprising toluene diisocyanate having a 2,4-isomer to a 2,6-isomer ratio greater than 80:20.      It has been found that by the present invention that there is obtained flexible polyurethane foams having the unexpected properties of 15% to 23% softening, increased tear strength, increased tensile strength, and increased percent elongation, and very little change in compression set properties.
Patent CA-2100567-C (CA)
Title: Protein s chromogenic assay
Inventor: VAN DE WAART PIET
IPC: C12Q1/56
Filed: 1992-11-20
Granted: 1997-09-30
Abstract: A chromogenic assay for determination of Protein S, using an indicator of Factor Xa as a measure of Protein S concentration. This technique utilizes the dependency of activated Protein C on Protein S in order to inactivate a known portion of Factor VIII. Residual Factor VIII is then activated and acts with Factor IXa to activate Factor X. The chromogenic substrate is then cleaved by Factor Xa and the rate of conversion of the indicator molecule is an indirect indicator of free Protein S.
Patent CA-2103607-C (CA)
Title: Heat seamable flame retardant roof sheeting with highly crystalline thermoplasticity promoters and method for covering roofs
Inventor: DAVIS JAMES A
IPC: C08K3/00
Filed: 1993-08-09
Granted: 1998-11-03
Abstract: A heat seamable flame retardant sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of apolymer blend comprising from about 50 to 90 parts by weight of halogenated polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof and from about 10 to 50 parts by weight of a highly crystalline thermoplasticity promoter selected from the group consisting of polymeric olefins prepared from monomers consisting of at least two carbon atoms; from about 50 to 250 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; from about 20 to 105 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend; and from about 15 to 90 parts by weight of an additive selected from the group consisting of flame retardant materials and mixtures thereof, per 100 parts of the polymer blend. A method for covering a roof comprises the steps of applying layers of sheet material as described above to the roof being covered; overlapping adjacent edges of the layers; heating the overlapped areas to slightly above the softening point of the sheet material and seaming the overlapped areas using heat and sufficient pressure to provide an acceptable seam, the composition of matter having sufficient self-adhesion without the use of an adhesive.
Patent CA-2103802-C (CA)
Title: Multi-axial weaving
Inventor: MOOD GEOFFREY INGLES
IPC: D03D13/00
Filed: 1992-02-12
Granted: 2002-01-29
Abstract: A process for weaving using a reed having vertically aligned upper and lower reed portions, the reed portions being rela-tively movable in the weft direction, the process including the steps of transferring warp yarns between said reed portions and moving the transferred warp yarns in the weft direction to define a selected array of warp yarns and then shedding the array of warp yarns for insertion of weft yarn.
Patent CA-2107585-C (CA)
Inventor: LAZAROU JIM
IPC: B23Q35/10
Filed: 1992-04-29
Granted: 2000-01-11
Abstract: A guiding assembly is described for guiding a manually controlled cutting tool relative to a lathe axis. The guiding assembly includes a longitudinally extending tool rest (12) which can be fixed to a lathe by mounting spigots (17,18) and which is fixed to a longitudinally extending guide (13) along which a cutting tool mount (42) can freely slide. The cutting tool (27) slides freely within the mount (42). A follower (29) is attachable to the cutting tool to follow a template (16) mounted on the tool rest (12).
Patent CA-2116059-C (CA)
Inventor: LEVESQUE CLAUDE A
IPC: A63B69/36
Filed: 1994-02-21
Granted: 1999-01-05
Abstract: The invention relates to a golf training aid to be used in combination with a golf club to assist in the visualizing of the action of the golf club head during the arc of a golf swing.  The training aid is adapted to be attached to the shaft of the golf club so as to maintain the club head in the proper position during the arc of a swing.  The device includes a body block and attachment portion for removable securement to a golf club shaft by sliding gate and lock means.  The body block has a flat surface and is positioned at 90° to the golf club head, acting as a level to help maintain the club head in a proper position throughout the arc of a golf club swing, thereby maintaining the club head in a proper position for striking a golf ball.  A rubber plug secures the attachment means to the golf club so as to prevent slipping or movement of the training aid during a golf club swing.
Patent CA-2116765-C (CA)
Title: Vacuum cup control apparatus
Inventor: BLATT JOHN A
IPC: B65G47/91
Filed: 1992-09-08
Granted: 1996-10-29
Abstract: A vacuum cup control apparatus (10) for applying and releasing vacuum in a vacuum cup (12) includes a venturi passage (16) for inducing a vacuum within the vacuum cup (12) upon the flow of pressurized air therethrough. Another air flow passage (44) extends through the housing (14) for injecting a flow of air under pressure to the vacuum cup (12) to relieve the vacuum therein. A sensor (90) senses the vacuum level attained in the vacuum cup (12). A feedback signal is sent by the control apparatus (10) to the external controller (80) as an indication that a predetermined, selectible vacuum level has been achieved. The control apparatus (10) is responsive to the sensor (90) and signals from an external controller (80) for applying vacuum to the vacuum cup (12).
Patent CA-2120308-C (CA)
Title: Sulfide ion-selective electrodes for control of chemical feed of organic sulfide products for metal ion precipitation from waste water
Inventor: SIEFERT KRISTINE S
IPC: C02F1/66
Filed: 1994-03-30
Granted: 2005-03-29
Abstract: A wastewater treatment system and method for chemical precipitation and removal of metals from wastewater in a continuous or batch treatment process includes an ion-selective sulfide electrode and a reference electrode disposed in a precipitation tank for measuring an electrochemical potential therebetween in a predetermined range. A controller unit is provided which is responsive to the electrochemical potential in the predetermined range and is connected to a precipitant feed unit for automatically controlling the chemical precipitant fed into the precipitation tank.
Patent CA-2121579-C (CA)
Inventor: LAY YU-CHIN
IPC: G02C7/04
Filed: 1992-11-03
Granted: 1999-10-12
Abstract: Hydrogels améliorés contenant du silicone, à mouillabilité accrue, qui comprennent un monomère contenant du silicone, des monomères hydrophiles et un monomère contenant des composés cycliques capable d'être converti par hydratation en un acide aminé hautement polaire.
Patent CA-2122478-C (CA)
Inventor: CRISANTI MARK MATTHEW
IPC: C07F9/94
Filed: 1992-11-16
Granted: 1998-08-25
Abstract: Compositions pharmaceutiques en formes posologiques, notamment en capsules et  en comprimés pour administration orale; elles renferment du salicylate basique de bismuth et une source d'ions chlorure (p. ex. chlorure de calcium), le rapport molaire ions chlorure/salicylate étant supérieur à environ 1/5.
Patent CA-2127521-C (CA)
Inventor: BUCKLAND KENNETH M
IPC: H04J3/06
Filed: 1994-07-06
Granted: 2002-02-05
Abstract: A method of converting a variable bit rate of a transmitted sequence of cells having F cells per frame and a peak cell transmission rate P into an effective peak rate of transmitted cells for each frame.  The steps include  determining a  number of  ghost  cells  for  each frame which when added to the actual number of cells in each such frame produce a peak rate of cells for that frame and transmitting in cells of a subsequent frame a number  corresponding  to  the  number  of  ghost  cells determined for the preceding frame.
Patent CA-2129993-C (CA)
Title: Soft tissue augmentation material
Inventor: HUBBARD WILLIAM G
IPC: A61L27/46
Filed: 1993-02-05
Granted: 2008-08-05
Abstract: A permanent, biocompatible material for soft tissue augmentation. The biocompatible material comprises a matrix of smooth, round, finely divided, substantially spherical particles of a biocompatible ceramic material, close to or in contact with each other, which provide a scaffold or lattice for autogenous, three dimensional, randomly oriented, non-scar soft tissue growth at the augmentation site. The augmentation material can be homogeneously suspended in a biocompatible, resorbable lubricious gel carrier comprising a polysaccharide. This serves to improve the delivery of the augmentation material by injection to the tissue site where augmentation is desired. The augmentation material is especially suitable for urethral sphincter augmentation, for treatment of incontinence, for filling soft tissue voids, for creating soft tissue blebs, for the treatment of unilateral vocal cord par-alysis, and for mammary implants. It can be injected intradermally, subcutaneously or can be implanted.
Patent CA-2133235-C (CA)
Title: Reflective digitally tunable laser
IPC: H01L33/44
Filed: 1994-09-29
Granted: 1999-03-09
Abstract: REFLECTIVE DIGITALLY TUNABLE LASER            ABSTRACT     A tunable laser formed on a semiconductive wafer comprising a plurality of monolithically integrated optical amplifiers and a planar optical multiplexer is disclosed.  According to the invention, one of the optical amplifiers is activated by energy, which amplifier produces a signal.  The signal is carried along a waveguide associated with the optical amplifier and enters a reflective Dragone router, which is the preferred optical multiplexer.  The reflective Dragone router functions, in conjunction with the activated optical amplifier, to define a wavelength selective optically transmissive pathway to create lasing action.  Facet mirrors are cleaved in the semiconductive wafer defining the lasing cavity which includes the optical amplifiers, associated waveguides and the reflective Dragone router.
Patent CA-2139080-C (CA)
Title: Snow gun
Inventor: WERNER RICHARD
IPC: F25D3/04
Filed: 1994-12-23
Granted: 2007-03-13
Abstract: The present invention relates to snow guns and improvements thereto. The improved snow gun has a large boom which receives liquid under pressure and forces it through small nozzles. The structure does not require high pressure compressed gas or large fan guns, and thus, is much more cost effective to install and operate. In a preferred form, the boom responds to changes in wind direction, which otherwise could reduce the effectiveness of the system.
Patent CA-2140744-C (CA)
Title: Aqueous resin composition for can outer surface
Inventor: MIZUTANI MANABU
IPC: C08L33/00
Filed: 1994-06-02
Granted: 1998-12-22
Abstract: An aqueous resin composition for outer surface coating of can, which comprises 30-70 parts by weight of a crosslinking agent (A) and 70-30 parts by weight of a film-forming resin (B).  This resin composition has been developed so as to have excellent resistance to pasteurization, an excellent hardness and excellent processability and to give reduced fuming.         In the resin composition, A is a co-condensation product between an alkyl-etherified amino resin and a hydroxycarboxylic acid and contains a mononuclear component in an amount of 40% or less; B is an acrylic resin or a polyester resin; and both A and B must be soluble or dispersible in an aqueous medium.