baber/WOPTO huggingface dataset:
Patent CA-2072269-A1 (CA)
Title: Compressor assembly
Inventor: WENZEL HARALD
IPC: F04C23/00
Filed: 1992-06-25
Abstract: ABSTRACT                       A COMPRESSOR ASSEMBLY         A compressor assembly for generating compressed gas, especially compressed air, comprises an internal combustion engine, a com-pressor and at least one exhaust gas turbo charger. The com-pressor is interposed between a suction conduit and a pressure conduit and is driven by the internal combustion engine by sub-stantially the entire mechanical energy output thereof. The or each exhaust gas turbo charger includes a drive portion and a compressor portion, the drive portion being connected to an exhaust gas pipe of the internal combustion engine. The com-pressor portion of the exhaust gas turbo charger is arranged in one of the said conduits of the compressor. This arrangement improves the overall efficiency of the compressor assembly, i.e. the ratio between the drive energy required and the quan-tity of gas compressed at a predetermined pressure ratio.
Patent CA-2072604-A1 (CA)
Title: Process for purification of off-gases from nitrogen oxides
Inventor: BOBROVA LJUDMILA N
IPC: B01D53/86
Filed: 1990-08-31
Abstract: ABSTRACT OF THE DISCLOSURE      The present invention relates to processes for purification of off-gases from nitrogen oxides.  It solves the problems of the atmosphere protection from pollution with toxic contamination with nitrogen oxides (NOx).  The present invention can be useful in neutralization of nitrogen oxides in the off-gases resulting from different production processes.
Patent CA-2073491-A1 (CA)
Title: Salts of n-nitrosophenylhydroxylamine
Inventor: UPMACIS RITA K
IPC: C08F2/00
Filed: 1992-07-08
Abstract: ABSTRACT   Disclosed are salts of N-nitrosophenylhydroxylamine and their use as polymerization inhbitors.
Patent CA-2074906-A1 (CA)
Inventor: HIRABAYASHI HIROMITSU
IPC: B41J2/05
Filed: 1992-07-29
Abstract: An ink jet recording apparatus includes a recording head for ejecting an ink from an ejection unit to cause a change in temperature in a recording period, a temperature keeping unit for maintaining a temperature of the recording head at a predetermined keeping temperature higher than an upper limit of a surrounding temperature range in which recording is possible, a temperature prediction unit for predicting an ink temperature in the ejection unit in the recording period prior to recording, and an ejection stabilization unit for stabilizing ink ejection from the ejection unit according to the ink temperature in the ejection unit predicted by the temperature prediction unit.
Patent CA-2075216-A1 (CA)
Title: Matte-finished polymethacrylate films
Inventor: GROSS HEINZ
IPC: B29K9/00
Filed: 1992-08-03
Abstract: The invention relates to a polymethacrylate matte-finish surface and comprised of: -- A thermoplastic polymer matrix A, in the amount of 99.9-30 wt.%, comprised of a hard phase (a1) and a tot phase (a2); and -- Latex particles of a thermoelastic polymer B, in t. of 0.1-70 wt.%, incorporated in the said matrix A, which particles give rise to the matte effect.      Preferably the hard phase (a1) may contain low molecular weight and/or polymer-bound UV-absorbers. The difference between index of refraction of the thermoplastic polymer A and that of the thermoelastic polymer B is at most 0.02.      Despite its matte finish, the film has high transparency, is weather resistant, has low incidence of white fracture when buckled or folded, and has impact strength which does not degrade upon cooling or heating. At the same time, the film is effective as a UV filter, to protect substrates which are sensitive to UV irradiation.      If necessary the film can be bonded to the substrate by roll-lamination, pressing, deep drawing, or adhesive bonding.
Patent CA-2078500-A1 (CA)
Inventor: HAWRYLKO ROMAN B
IPC: B29C48/395
Filed: 1992-09-17
Abstract: This invention discloses an improved method for powder PVC extrusion using particulate PVC resin specified herein which enables smooth, dull surfacesfor extrudates under broad processing conditions, in particular at relatively lower shear and temperature. The resins are characterized as having an average particle size ranging from 50 to 125 microns, a DOP porosity of from about 0.27 cc/gm to about 0.5 cc/gm, and a friability rating of 5 or less, preferably 2 or less depending on the stock temperature range during extrusion.
Patent CA-2078878-A1 (CA)
Title: Process for the preparation of high-purity tetrahydrofuran
Inventor: FALLING STEPHEN N
IPC: B01J23/755
Filed: 1991-03-28
Abstract: Disclosed is a process for the preparation of high-purity tetrahydrofuran from a mixture of 2,5-dihydrofuran and 3,4-epoxy-1-butene and/or crotonaldehyde wherein the mixture is hydrogenated in the presence of a nickel or platinum catalyst to obtain a product consisting essentially of tetrahydrofuran and 1-butanol which are readily separable.
Patent CA-2082326-A1 (CA)
Inventor: KOTANI TOMOYUKI
IPC: B32B27/36
Filed: 1992-11-06
Abstract: ABSTRACT OF THE DISCLOSURE          A laminated polyester film for a magnetic recor-ding medium having at least three layers, in which each of a top layer and a bottom layer of the at least three layers contains inorganic particles having a Moh's hardness of at least 8 and an average particle size of 0.005 to 0.5 µm in an amount of 0.25 to 5 % by weight based on the weight of the polyester of the respective layer and, in total, not larger than 0.20 % by weight based on the whole weight of the polyesters of all the layers including an intermediate layer, and exposed surfaces of the top and bottom layers have coefficients of friction and surface roughness which satisfy which satisfy the specific conditions.
Patent CA-2082676-A1 (CA)
Title: Air separation
Inventor: RATHBONE THOMAS
IPC: F25J3/04
Filed: 1992-11-12
Abstract: ABSTRACT AIR SEPARATION   An air stream is compressed in compressor 2 and purified in unit 4.  One subsidiary stream of this air is cooled in heat exchanger 10 to a temperature suitable for its separation by rectification.  This subsidiary air stream is separated in a double rectification column 24 comprising a higher pressure stage 18 and a lower pressure stage 20.  A secondary subsidiary air stream is further compressed in compressors 42, 44, 46 and 48.  It is cooled in heat exchanger 10 to a first temperature intermediate ambient temperature and the operating temperature of the column 24.  The second subsidiary stream is expanded in an expansion turbine 50 and leaves that turbine 50 at a second intermediate temperature lower than the first intermediate temperature.  The expanded second subsidiary stream enters a second expansion turbine 52 at such second intermediate temperature and is expanded therein.  The expansion turbine 52 feeds the second subsidiary air stream to the lower pressure stage 20 of the double column 24.  Oxygen and nitrogen products are withdrawn from the lower pressure stage partly in liquid state.
Patent CA-2084053-A1 (CA)
Title: Method of disposing of medical sharps
Inventor: FUNK CHARLES F SR
IPC: B09B3/00
Filed: 1992-11-27
Abstract: A METHOD OF DISPOSING OF MEDICAL SHARPS     ABSTRACT OF THE DISCLOSURE    A method of successfully disposing of,  or recycling, waste metals  comprising placing the waste metals  in  an aluminum container,  placing the  container  in  a  crucible containing a mixture of powdered aluminum and iron oxide, initiating a self-sustaining reaction between the oxide and the metal that oxidizes the aluminum and reduces the iron and heats the contents of the crucible to 4,000°F or higher to melt the waste metals and the iron and produce an ingot of the iron and the metal from the sharps and aluminum oxide slag, and trapping the heat and reaction products above the crucible with a hood of refractory material which covers the crucible and is sealed by partial immersion in loosely packed sand. The hood enables complete containment and incineration of the reaction products.  The ingot and the slag can be recycled.
Patent CA-2085056-A1 (CA)
Title: Process to recycle aluminum salt cake waste and to convert aluminum oxide to hydrated aluminum
Inventor: DANIELS EDWARD J
IPC: C22B21/00
Filed: 1992-12-10
Abstract: ABSTRACT OF THE DISCLOSURE      A system process for treating aluminum salt cake containing water soluble halide salts and aluminum.  The salt cake is contacted in a treatment tank with water having a temperature not less than about 250°C for a time sufficient to dissolve halide salts to form a saturated brine solution and to hydrate aluminum oxide.  The hydrated aluminum oxide may be separated from the saturated brine solution and aluminum oxides and thereafter mixed with caustic to form sodium aluminate which is separated for further treatment.  The saturated brine solution is cooled to a temperature of less than about 20°C to precipitate halide salts, which are separated.  The brine solution may be cooled again to about 0°C to precipitate additional salts.  Then the brine is reheated to a temperature not less than about 250°C by passing the cooled brine solution in heat exchange relationship with heated saturated brine solution leaving the treatment tank.  The heated brine solution is introduced into the treatment tank with aluminum salt cake previously in the treatment tank for a time sufficient to form a saturated brine solution at a temperature in the range of from about 250°C to about 375°C.
Patent CA-2085272-A1 (CA)
Title: Partial-response-channel precoding
Inventor: WEI LEE-FANG
IPC: H04N7/015
Filed: 1992-12-14
Abstract: Digital data is transmitted over partial-response channels using a precoding technique which allows for the use of a wide variety of transmit constellations.  A sequence of signal points is selected from a predetermined base constellation (FIG. 5) meeting particular criteria. A so-called combined signal point is developed for a present symbol interval by a) selecting (in 9511) a signal point from the base constellation as a function of input bits associated with the present symbol interval and b) combining the signal point thus selected (in 9514) with afeedback signal (9513) which is a function of one or more combined signal pointsthat were developed for previous symbol intervals, that function being determined by the characteristic the partial-response channel. A transmit signal which represents the combined signal points is then provided (by 19). In one implementation, the processing steps are performed explicitly using an integrated precoder/constellation mapper (951). In another implementation those steps are performed implicitly using table look-up (FIG. 13).
Patent CA-2086390-A1 (CA)
Title: Golf ball retriever
Inventor: NIHRA THOMAS E
IPC: A63B47/02
Filed: 1992-12-29
Abstract: GOLF BALL RETRIEVER   Abstract Of The Disclosure A golf ball retriever comprising a molded body having two outer and a middle opening formed in one end thereof.   The middle opening has oppositely disposed tapered sides formed thereon.   A molded  flipper  is pivotally mounted in the middle opening between the tapered sides.  A molded partial ring-like member having two legs formed thereon is mounted in the two outer openings.   A spherical pocket is formed in the inner surface of the ring-like member opposite the two legs.          A single pin is mounted through aligned openings formed in the molded body, the legs and the molded flipper.  An extension is formed on the other end of said molded body, with a cylindrical groove formed therein.  A solid stem extends from the extension through the cylindrical groove and beyond the end of the extension.  A tubular section  is  secured  on  the  solid  stem  in  the  said cylindrical groove.  In an alternate embodiment the two legs of the partial ring-like member are integrally molded on the end of the body in lieu of the two outer openings for receiving same,  and protrusions  formed adjacent the end of the flipper replace the single pin.
Patent CA-2088547-A1 (CA)
Title: Method and apparatus for encoding a digital image signal
IPC: H04N21/236
Filed: 1993-02-01
Abstract: A digital image signal is encoded for recording by placing in a sync block approximately an integer number of macro blocks representing orthogonally transformed image data for a certain portion of the image. When a sync block is reproduced at high speed, the reproduced data therein corresponds to a displayable portion of the image including DC components and both low and high frequency AC components. Also, each sync block contains fixed length areas for the orthogonal transform coefficient data according to the 4:1:1 (or 4:2:0) format in which four blocks of luminance coefficients and two blocks of color difference coefficients represent a certain portion of an image, and also contains at least one fixed length overflow area for the high frequency coefficients which exceed the capacity of the fixed length coefficient areas. An error in the low frequency coefficients in the fixed length areas does not harm the high frequency coefficients since they are in separately addressed areas. Before a set of macro blocks is compressed into variable length encoded data, with the amount of encoded data for each set being kept within a target value so as to fit into fixed length recording tracks, the macro blocks are shuffled so that the central portions of an image are at the beginning of the set for reducing the noticeability of errors in a reproduced image.
Patent CA-2089874-A1 (CA)
Title: High velocity electric-arc spray apparatus and method of forming materials
Inventor: MARANTZ DANIEL R
IPC: H05H1/42
Filed: 1991-08-30
Abstract: A high velocity arc spray apparatus includes a transferred-arc-plasma torch assembly (10) which forms a transferred-arc column. A metal feedstock (122) is fed into the transferred-arc column at an angle, such that no portion of the metal feedstock (122) is closer to the transferred-arc-plasma torch assembly (10) than the leading edge of the metal feedstock (122) in the feeding direction. A power source (27) is coupled to both the metal feedstock and transferred-arc-plasma torch assembly (10) for creating an electrical potential difference between the metal feedstock (122) and the transferred torch assembly (10).
Patent CA-2094867-A1 (CA)
Inventor: HEIDEMANN ROLF
IPC: H04B10/291
Filed: 1993-04-26
Abstract: Abstract Optical Communication System with Monitoring Device for Avoiding Giant Pulses If, in optical communication systems using fiber-optic amplifiers, the optical isolator at the input is omit-ted on cost grounds and because of the deterioration of the noise characteristics caused by the insertion loss, a giant pulse may be developed when a fiber-optic connector at the input is being separated.            To avoid this, use is made of a monitoring device (7) which, when the power input to the fiber-optic amplifier (4, 5, 3, 6) drops below a given threshold, quickly turns off the current of the pump laser (4) or interrupts the light path of the pump laser (4).            (Fig. 1 )
Patent CA-2096025-A1 (CA)
Title: Muscle powered cardiac assist system
Inventor: GUIRAUDON GERARD M
IPC: A61M60/882
Filed: 1991-09-19
Abstract: A method and apparatus for providing assistance to a patient's heart using a surgically prepared skeletal muscle. A skeletal muscle, such as the latissimus dorsi, is carefully separated from the skeletal structure leaving innervation and vascularization intact. The muscle tissue is then separated into two independent contractile masses. Alternatively, two separate skeletal muscles may be used. The first of these is wrapped about the atria. The second is wrapped about the ventricles. Each muscle mass is individually stimulated using an implantable pulse generator. Stimulation to the muscle mass is synchronized to the naturally or artificially paced contractions of the heart to provide the maximum in assistance. During each complete heart cycle, the muscle mass assisting the ventricles is stimulated at the same time as contraction of the ventricular myocardium. The muscle mass assisting the atria is then stimulated at the same time as contraction of the atrial myocardium. Various sensing and stimulating modes may be used to optimize cardiac assistance.
Patent CA-2100984-A1 (CA)
Title: Enhancing detergent performance with polysuccinimide
Inventor: FREEMAN MICHAEL B
IPC: C11D17/00
Filed: 1993-07-21
Abstract: ABSTRACT OF THE DISCLOSURE   Detergent compositions containing from 0.5 to about 50 percent by weight polysuccinimide are provided. These compositions have enhanced anti-encrustation, soil removal and anti-redeposition properties.
Patent CA-2103094-A1 (CA)
Inventor: SOREM ROBERT M
IPC: E21B33/127
Filed: 1993-11-15
Abstract: ABSTRACT     The strength of slats attached to an inflatable packer assembly by welding is increased by forming the slats of an age-hardening materials, welding the slats to the inflatable packer assembly in an annealed condition followed by age-hardening of the welded slats.  A slat structure having much greater strength than welded cold-worked material is realized.
Patent CA-2103472-A1 (CA)
Inventor: BOTT RICHARD H
IPC: C08F2/44
Filed: 1993-11-18
Abstract: ABSTRACT         A method for preparing aqueous polymer emulsions in the presence of a poly[(vinyl alcohol)-co-(vinyl amine)] copolymer as a protective colloid and aqueous polymer emulsions containing a poly[(vinyl alcohol)-co-(vinyl amine)] copolymer.
Patent CA-2104716-A1 (CA)
Title: Method for calibrating inertial navigation instruments of aircraft
Inventor: DIESEL JOHN W
IPC: G01C19/00
Filed: 1993-08-24
Abstract: A method and apparatus for minimizing the effect of lateral velocity transients upon an aircraft inertial instrument calibration process of the type in which cross-track velocity is measured and utilized to correct for the east component of gyro bias error. A "cross-track position" value is obtained by integration of the cross-track velocity. A Kalman filter calculates a plurality of gain values corresponding to measurements of crab angle, lever arm, north and east velocity, heading angle and rate of change of heading angle and those gain values are applied to the cross-track position value to obtain error values for each of such parameters. The calculated error values are then employed as corrections to, or calibrations of, the inertial instrument outputs.
Patent CA-2107251-A1 (CA)
Title: Apparatus for applying two-part surgical fastener in laparoscopic or endoscopic procedures
Inventor: GREEN DAVID T
IPC: A61B17/068
Filed: 1993-09-29
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus is disclosed for applying two-part surgical fasteners during endoscopic or laparoscopic procedures.  The apparatus includes a handle assembly, an endoscopic portion which extends from the handle assembly, and a tool assembly pivotally associated with a distal end of the endoscopic portion for applying a two-part surgical fastener.  A mechanism is provided for effectuating articulated pivotal movement of the fastener applying tool assembly within an angular sector of rotation to increase the operational range of the instrument.
Patent CA-2107820-A1 (CA)
Title: Low-power wireless system for telephone services
Inventor: O'NEILL KEITH D
IPC: H04W36/08
Filed: 1993-10-06
Abstract: LOW-POWER WIRELESS SYSTEM FOR TELEPHONE SERVICES            Abstract of the Disclosure A small telephone system provides telecommunications services for personal wireless telephone sets over an area which is divided into service cells. Each of the cells is defined by reception characteristics of a plurality of radio base stations within the cell. During a call progress, if thewireless telephone set is mobile, a radio link with the set is handed off from one cell to another as the wireless telephone set moves along. The telephone system includes a service controller and a port being wireline connected between each radio base station and the service controller. The service controller selects radio base stations for setting up radio links with wireless sets of a calling or called persons, and responds to received signal strengths for handing a radio link from radio base station to radio base station, to maintain the quality of the radio link with an active mobile wireless telephone set.          -i-
Patent CA-2108150-A1 (CA)
Inventor: BAKER RICHARD J
IPC: A63B69/36
Filed: 1992-06-01
Abstract: An instructional aid (10) for enabling and assisting a person to emulate a predetermined movement such as a golf swing including an image/data capturing device (11) for scanning capturing and storing the image/data signals of the person's golf swing or movement, and a transceiver (14) for transmitting the image/data signals over a communications network (15) to a remote computer (17). The computer (16) contains a database (17) which stores in digital form image signals and bio-mechanical data of a number of preselected swings or movements. The computer (16) analyses the person's image/data signals against image/data of a preselected swing and generates in digital form further visual images/data signals which can be transformed so as to assist or enable a person to be able to emulate the preferred swing. The instructional aid may also be used for analysing or reporting on particular geographical regions or objects and provides a specialized presentation for development of that region or object from information stored in the computer database.
Patent CA-2108392-A1 (CA)
Title: Polymer blends of polyglutarimides
Inventor: HALLDEN-ABBERTON MICHAEL P
IPC: C08L67/02
Filed: 1993-10-14
Abstract: ABSTRACT   A polymer blend of a polyglutarimide and liquid crystalline copolyester polymer or benzimidazole polymer. The blend is a melt-compoundable polymer blend.
Patent CA-2108832-A1 (CA)
Title: Process for making shearform matrix
Inventor: BOGUE B ARLIE
IPC: A61K9/70
Filed: 1993-10-20
Abstract: ABSTRACT       The present invention is a unique process and apparatus for making a new matrix material called a shearform matrix which results in transformation of the morphology of a feedstock.  The process is characterized by increasing the temperature of a nonsolubilized feedstock carrier to a point where it will undergo internal flow, followed by ejecting a stream of the feedstock and then subjecting it to disruptive fluid shear force  which separates it into separate parts or masses which have a transformed morphology.  The shearform matrix may include other ingredients such as oleaginous material and actives.
Patent CA-2111900-A1 (CA)
Title: Ractopamine for pre-and peripubertal female bovidae
Inventor: HANCOCK DEANA LORI
IPC: A23K1/18
Filed: 1993-12-20
Abstract: The present invention is directed to a method for increasing the milk producing capacity of a female bovidae, by administering an effective amount of an active agent to the bovidae during its mammary glands' allometric growth phase preceding first conception. The active agent is ractopamine or a physiologically acceptable salt.
Patent CA-2113150-A1 (CA)
Title: Hay Saving Round Bale Feeding Apparatus and Method
Inventor: RUMBAUGH EARNEST F
IPC: A01K1/10
Filed: 1994-01-10
Abstract: A hay saving round bale feeder includes a rectangular framework constructed around a central round bale cradle.  The framework comprises a pair of side frames, an end frame, and a cradle access gate, each of which accommodates a number of livestock feeding stations.  Each feeding station is defined by a pair of parallel side bars which are spaced to allow a feeding animal to insert its head and neck but not its shoulders.  The feeding stations are spaced from the bale cradle to provide an interim hay saving space into which dropped hay will fall.  A hay deflector, with a cross section shaped as an inverted V, is positioned beneath the bottom center of the bale cradle to deflect any dropped hay to within easy reach of the feeding livestock.
Patent CA-2114359-A1 (CA)
Title: Aminocycloalkanobenzodioxoles as beta-3 selective adrenergic agents
Inventor: EPSTEIN JOSEPH W
IPC: A61K31/36
Filed: 1994-01-27
Abstract: Title:  AMINOCYCLOALKANOBENZODIOXOLES AS BETA-3 SELECTIVE ADRENEROEXC AGENTS                     ABSTRACT OF THE DISCLOSURE         The invention is antiobesity/antidiabetic/ beta-3 agonists of the formula   I   wherein the substituents R0, R1, R4, R4', R5, R6 or n are as defined in the specification.