baber/WOPTO huggingface dataset:
Patent CA-2101132-A1 (CA)
Inventor: SUNDELL DAVID R
IPC: C21B7/06
Filed: 1993-07-22
Abstract: A mix for forming a magnesite-carbon refractory shape comprising from about 70 to 97 wt.% deadburned magnesite and about 3 to 30 wt.% flake graphite, and for each 100 wt.% of said magnesite and graphite, from about 1.5 to 6 wt.% of a carbon-containing bonding agent; said graphite containing from 90 to 99 wt.% carbon and having a lime/silica ratio greater than 0.2 in its ash and said magnesite containing greater than 95 wt.% magnesia, and the  resultant magnesite-carbon refractory  shapes  and liners for metal processing equipment made from such shapes and the method of increasing the life of liners for such equipment.
Patent CA-2101251-A1 (CA)
Title: Rust preventive material and method of application
Inventor: CARR DODD S
IPC: C23F13/06
Filed: 1992-01-24
Abstract: Perforated sheets (13) of rolled zinc, held against steel reinforced concrete highway piers (11) in seawater intertidal zones (30), provide sacrificial cathodic protection to the embedded steel (12). Unique grooved, recycled plastic/wood composite extrusions (14) press the perforated zinc sheets firmly against the four faces of the concrete piers by means of durable stainless steel binding strips (16).
Patent CA-2101794-A1 (CA)
Inventor: KAWAKAMI TATSURO
IPC: G06F3/033
Filed: 1993-08-03
Abstract: A vibration transmission board for a coordinate inputting device suitable for use with a computer.  The vibration transmission board is provided with a member having directionality in a direction of vibration transmission, whereby the vibration is suppressed in a predetermined direction to improve accuracy of positional detection of vibrations produced by an input pen.
Patent CA-2102688-A1 (CA)
Inventor: NEE HAN H
IPC: G11B7/253
Filed: 1993-11-08
Abstract: ABSTRACT OF THE DISCLOSURE    A method for removing the lacquer and aluminum coatings from the polycarbonate substrate of scrap compact discs so as to reclaim the polycarbonate includes the steps of immersing the discs in a an alkaline solution, heating the solution to a predetermined temperature and mechanically agitating the immersed discs by applying ultrasonic energy to the solution at a sufficient energy density and for a sufficient time to dissolve the lacquer and the aluminum into the solution.          The solution containing the dissolved lacquer and aluminum is decanted from the stripped polycarbonate discs, the discs are washed with water to remove remanent alkaline solution, and then dried.
Patent CA-2103670-A1 (CA)
Title: Laser systems
Inventor: EPSTEIN HAROLD M
IPC: H01S3/30
Filed: 1992-02-25
Abstract: Apparatus for improving properties of a solid material by providing shock waves therein. A laser oscillator (10a) provides a plurality of pulses (112) of coherent radiation. The leading edge of each pulse is sharpened either by a metal foil (18) or by phase conjugation reflection means (18a, 18e) including a stimulated Brillouin scattering cell (18d, 18e) and optionally a Faraday isolator (18b). Each pulse is directed onto an amplifier (123) comprising first and second laser amplifier rods (23a, 23b) in series. At least a major portion of the radiation (112) amplified by the first amplifier rod (23a) is directed to the second amplifier rod (23b), where it is amplified and then directed to a surface of the solid material. Substantially uniform spatial amplitude is achieved in the radiation (112) in at least one of these ways: a pair of flashlamps (70, 71) are included with each laser amplifier rod (23a, 23b) for pumping the rod; the axis of each flashlamp (70, 71) and the axis of the first rod (23a) are substantially parallel to each other and substantially in the same (first) plane; and a (second) plane containing the axis of the second rod (23b) and the parallel axes of its associated flashlamps (70, 71) is substantially perpendicular to the first plane; and/or the oscillator (10c) provides a beam of unpolarized coherent radiation (12T) in which the spatial amplitude pattern of each succeeding pulse is substantially a mirror image of the pattern in the pulse that preceded it, or is rotated about its axis by a predetermined smaller angle from the pattern in the pulse that preceded it.
Patent CA-2107787-A1 (CA)
Title: 14.alpha., 17.alpha.-(propano and 17²-propeno)estratrienes
Inventor: BULL JAMES R
IPC: C07J53/00
Filed: 1992-04-30
Abstract: ABSTRACT OF THE DISCLOSURE   14.alpha., 17.alpha.- (propano and 172-propeno) estratrienes of the general formula (I), in which R1 is a hydrogen atom, a methyl or acyl group with 1-12 carbon atoms, R2 is a hydrogen atom or an acyl group with 1-12 carbon atoms and (a) is a C-C single or double bond.  The novel compounds of the general formula (I) are oestrogenically active like ethinyl estradiol.
Patent CA-2109573-A1 (CA)
Title: Drum washer
Inventor: OJALA ALPO
IPC: B01D33/44
Filed: 1992-06-17
Abstract: The invention concerns a drum washer. The washer has two plates (14; 18) located after each other in parallel with the drum, and the pulp to be washed is conducted between these plates. Between the plates there is a gap (22) closed by a flap valve (25) by way of which gap washing liquid is conducted through the mat. The washer is especially suitable for washing cellulose pulp.
Patent CA-2111369-A1 (CA)
Title: Catalytic system and use thereof for the (co)polymerization of olefins; process for preparing said catalytic system and process for the (co)polymerization of olefins
Inventor: ZANDONA NICOLA
IPC: C08F4/643
Filed: 1993-12-14
Abstract: Method for (co)polymerization of olefins, preferably ethylene and/or propylene, using a novel. The catalyst prepared from mixture of a neutral metallocene compound and a catalytic solid which is then contacted with an aluminum derivative and the olefin, followed by the addition of an ionizing agent. Method for polymerizing olefins is claimed in which the catalytic system used comprises an aluminum derivative of general formula AlXnT3-n X = halogen; T = hydrocarbon (optionally oxygenated); n = 0 - 3; an ionizing agent; and a neutral transition metal metallocene derivative. The method involves preparing a mixture of the metallocene compound and catalytic solid containing at least a Group IVB element, magnesium and halogen; and bringing this mixture into contact with at a hydrocarbon diluent, the aluminum derivative and the olefin; and then adding the ionizing agent.
Patent CA-2113322-A1 (CA)
Title: Process for preparing cyclopentenones
Inventor: LEE JOHN Y
IPC: C07C49/597
Filed: 1994-01-12
Abstract: A process for preparing a cyclopentenone by forming a two-phase mixture of a 1,4-diketone, a water immiscible organic solvent, and an aqueous base solution, and heating the mixture so as to convert the 1,4-diketone to a cyclopentenone which collects in the organic solvent phase.
Patent CA-2113397-A1 (CA)
Title: Inflatable Restraint System Reaction Canister with Integral Inflator Chamber
Inventor: LAURITZEN DONALD R
IPC: B60R21/26
Filed: 1994-01-13
Abstract: A reaction canister body part having an integral inflator chamber and an inflatable restraint system using reaction canister assemblies with such a body part are provided.
Patent CA-2114668-A1 (CA)
Title: Positively charged polyvinylidene fluoride membrane
Inventor: DEGEN PETER J
IPC: B01D71/34
Filed: 1994-02-01
Abstract: ABSTRACT A   filter   medium   comprising   a  microporous polyvinylidene fluoride membrane and a polymer containing positively charged quaternary ammonium groups covalently bonded to the membrane, and a method of using the filter medium to treat a composition, particularly a biological or pharmaceutical   composition   such   as   an   ophthalmic composition.
Patent CA-2114703-A1 (CA)
Title: Directional light filter and holographic projector system for its production
Inventor: BAKER KENNETH M
IPC: G02B5/32
Filed: 1994-02-01
Abstract: DIRECTIONAL LIGHT FILTER AND HOLOGRAPHIC   PROJECTOR SYSTEM FOR ITS PRODUCTION             ABSTRACT OF THE DISCLOSURE        A photosensitive optical body is exposed by a   diverging   three-dimensional   standing   wave interference  pattern  generated  by  a  holographic projector system.  The projector system, using binary optics, creates a diverging lattice of hexagonal or square rod-like intensity maxima extending through the optical  body.   After the standing wave  image  is recorded and fixed, the optical body will contain a honeycomb-like grid or pattern that will cause either an absorption or a refractive index modulation effect on light that differs in incidence to the direction of normal propagation through the created channels to a focus or convergence point.  This produces either a volume-absorption hologram or a volume-phase hologram (transmittance function modulated by the permittivity [index of refraction]) with such properties as depth of focus, high resolution, and a one-way (directional perspective)  and  anti-glare  effect  with  reduced diffraction.   Unique photosensitive aromatic diazo compounds which possess high thermal stability and soluble in non-polar solvents are provided.  In the volume-absorption hologram, the compounds react with couplers within the optical body during development to form azo dye in the areas corresponding to destructive interference during exposure.  While chiefly intended for use in eyeglass lenses, the optical body may also find use in telescopes,  detectors,  film and video cameras,  and various other optical devices.   The holographic projector system also affords a production method of writing highly-corrected peripheral as well as center-field mesh patterns on planar or non-planar surfaces.
Patent CA-2116615-A1 (CA)
Title: Two-Frequency Impedance Matching Circuit for an Antenna
Inventor: ITOH RYOH
IPC: H03H7/38
Filed: 1994-02-28
Abstract: In order to achieve two-way communications at two different frequencies, and impedance matching circuit is provided between an antenna and a feeder for impedance matching at first and second resonant frequencies.  The circuit includes a first inductor which is directly coupled to the antenna.  The first inductor induces an impedance of the antenna and first antenna to be capacitive at the first resonant frequency and induces that impedance to be inductive at the second resonant frequency. The first resonant frequency is lower than the second resonant frequency.  A first capacitor is coupled to the first inductor. The capacitance of the first capacitor is selected to substantially equalize reactance components of the antenna and the first inductor and the first capacitor at the first and second resonant frequencies.  A combination of a second inductor and second capacitor are coupled between the first capacitor and the feeder.  The values of the second inductor and second capacitor are selected to match an impedance of the antenna and the first inductor and the first capacitor to an impedance of the feeder at both of the first and second resonant frequencies to thereby allow the antenna to resonate at the first and second resonant frequencies.
Patent CA-2116859-A1 (CA)
Title: Methods and compositions for the treatment and repair of defects or lesions in cartilage or bone
Inventor: HUNZIKER ERNST B
IPC: A61K31/727
Filed: 1992-08-19
Abstract: Methods and compositions are provided for the treatment and repair of defects in the cartilage or bone of humans and other animals as in full-thickness defects in joints. The defect in bone is filled with a matrix having pores large enough to allow cells to populate the matrix and to form blood vessels. The matrix filling the bone defect contains an angiogenic factor and also contains an osteogenic factor in an appropriate delivery system. To induce cartilage formation, a defect in cartilage is filled with a matrix having pores sufficiently large to allow cartilage repair cells to populate the matrix. The matrix filling the defect in carti-lage contains a proliferation agent and also contains a transforming factor in an appropriate delivery system. The matrix may al-so contain a chemotactic agent to attract cartilage repair cells. In a full-thickness defect, the defect sites in bone and cartilage are separated from each other by a membrane, which is sealed to the cartilage-bone junction and which prevents blood vessels and associated cells from penetrating from one site to the other.
Patent CA-2117581-A1 (CA)
Inventor: SUZUKI SHINTARO
IPC: C07K19/00
Filed: 1993-12-23
Abstract: Polynucleotide sequences encoding novel cadherin-like polypeptides, designated protocadherins, and variants thereof are provided by the invention as well as methods and materials for the recombinant production of the same. Antibody substances specific for protocadherins are also disclosed as useful for modulating the natural binding and/or regulatory activities of the protocadherins.
Patent CA-2117763-A1 (CA)
Title: Supersaturated topical composition
Inventor: DAVIS ADRIAN F
IPC: A61K9/06
Filed: 1993-04-02
Abstract: Two-component pharmaceutical compositions for topical application to the human or animal body comprising two misci-ble liquid phases having different lipophilicities and a drug dissolved in at least one liquid phase, each phase comprising at least one topically acceptable non-aqueous and non-volatile solvent.
Patent CA-2119958-A1 (CA)
Title: Micro-controller based high voltage power supply
Inventor: HOWE VARCE E
IPC: B05B5/10
Filed: 1994-03-25
Abstract: MICRO-CONTROLLER BASED          HIGH VOLTAGE POWER SUPPLY     ABSTRACT OF THE DISCLOSURE     A  high  voltage  power   supply   for  use   in electrostatically-aided  coating  material  application equipment  for dispensing  electrostatically  charged particles of coating material includes a control module having a controller operated under a stored program to perform  control  functions,   safety  and  operating diagnostics.   A non-volatile memory is provided for storing current parameter settings, turn on table values, and a constants table for use by the controller.   A personal computer is connectible to the controller over a communication link to permit changing dynamically of the values stored in the non-volatile memory while in operation so as to facilitate engineering development and service.
Patent CA-2120451-A1 (CA)
Title: Differential current sensing method and apparatus
Inventor: COBURN DAVID C
IPC: G01R21/06
Filed: 1994-03-31
Abstract: DIFFERENTIAL CURRENT SENSING METHOD AND APPARATUS     Abstract of the Disclosure A current sensor includes first and second conductors and an annular current comparator magnetically coupled to the first and second conductors for producing an output signal related in magnitude and phase to an input current.  The first and second conductors have first and second predetermined resistances, respectively, for conducting first and second portions of the input current along first and second directions, respectively.  The first direction is substantially opposite the second direction within a bore of the annular current comparator.  A current is induced in the annular current comparator, preferably a toroidal winding, in relation to the current difference between the first and second portions of the input current.  Secondary windings, preferably feedback and sense secondary windings, are wound about and magnetically coupled to the annular current comparator for producing an output signal responsive to the current induced within the annular current comparator while preventing the annular current comparator from being saturated.
Patent CA-2122450-A1 (CA)
Title: Solid phase amplification process
Inventor: MORRIS CHARLES P
IPC: C12Q1/6834
Filed: 1992-10-30
Abstract: An assay and method of use thereof for amplification and detection of target nucleic acids in patient samples, which is rapid, simple and accurate is described. The assay and method utilizes any one of a variety of amplification methods, in combination with primers immobilized onto either the container containing the patient sample, such as a microtiter welt plate, or a dipstick which is readily immersible into the container. Amplification occurs in the presence of both the first, immobilized primer and a second, labelled primer which hybridizes to the target nucleic acid in the opposite direction to the first. Examples demonstrate the effectiveness of the method in detecting a specific species of mycoplasma, as well as the gene characteristic of cystic fibrosis.
Patent CA-2122687-A1 (CA)
Inventor: APPLE HOWARD P
IPC: A61B5/022
Filed: 1994-05-02
Abstract: A method and apparatus are described for determining characteristics of peripheral arterial volume and compliance. A blood pressure cuff is inflated and deflated around a limb of the body and pressure measurements are taken. The volume of air removed from the cuff is determined in a quantifiable manner, such as by expelling air through an orifice of known characteristics or by means of a volume of know characteristics. The detected pressures and volume of air removed are used to compute oscillation volume, which in turn is used to display arterial capacity and compliance as a function of transmural pressure and time. Arterial capacity may be displayed in terms of arterial radius, arterial cross-sectional area, or arterial volume. Also, systolic and pulse pressures are determined using only these determined values.
Patent CA-2123424-A1 (CA)
Inventor: NISHIMURA KUNIO
IPC: B60R21/233
Filed: 1993-09-14
Abstract: An air bag having reinforcing belts and exhibiting a high burst strength and excellent safety, comprises a circular top cloth, a circular bottom cloth seam-joined to the top cloth and having an inflator-joining circular hole located in the center portion thereof, top and bottom reinforcing cloths seam-joined to center portions of the top and bottom cloths, and a plurality of reinforcing belts located on inside faces of the top and bottom cloths, in which air bag an end portion of each reinforcing belt is connected to the top reinforcing cloth or a top belt catcher seam-joined to the top cloth, the opposite end portion of the reinforcing belt is connected to the bottom reinforcing cloth or a bottom belt catcher seam-joined to the bottom cloth, and each of the top and bottom cloths is seam-joined to a corresponding reinforcing cloth and optionally a corresponding belt catcher by a plurality of concentrically closed seam lines satisfying the relationship (I):               0.45 ~ .PHI./L ~ 2.95             (I) In (I) .PHI. is the shortest straight line distance between two intersecting points of an outermost circumferential seam line with a straight line extending through a center of the circular top or bottom cloth, and L is a straight line distance between an intersecting point of a longitudinal center line of a reinforcing belt with the outermost circumferential seam line of the top reinforcing cloth and an intersecting point of the longitudinal center line with the outermost circumferential seam line of the bottom reinforcing cloth.
Patent CA-2125259-A1 (CA)
Inventor: GIORDANI ATTILIO
IPC: F16K5/06
Filed: 1994-06-06
Abstract: An improved zone valve is provided in which a motor-driven actuator assembly rotates a ball valve through about a 90° rotation, between a first, normal position, and an opposite position, e.g., between closed and opened positions.  The actuator assembly includes a torsional spring configured to be tightened as the ball valve is rotated by the motor from its normal position to the opposite position.  When the motor is de-energized, the spring provides a restoring torque that is sufficient to overcome the resisting frictional torque of the ball valve and inertia and friction of the de-energized motor, causing the drive shaft to rotate counter to the direction of rotation of the motor, thereby returning the valve to its normal position.  Preferably, the torsion spring is positioned so that, in the normal position, it is preloaded sufficiently to provide adequate restoring torque to overcome the frictional resistance of the valve.  The motor is coupled to the valve stem so that electrical energization of the motor rotates the ball valve through about a 90° rotation, i.e., from its normal position to the opposite position.
Patent CA-2126006-A1 (CA)
Title: Reducing redundant symbolic debug information in computer systems
Inventor: PENNELLO TOM
IPC: G06F11/36
Filed: 1994-06-16
Abstract: REDUCING REDUNDANT SYMBOLIC DEBUG INFORMATION                 IN COMPUTER PROGRAMS                             ABSTRACT    A single copy of symbolic debug information is generated and given a name. The name is derived from the name of the High Level Language construct for which symbolic debug information must be generated. All references to the symbolic debug information are through that name. Standard linker technology is used to connect the references to the single named copy. How to identify a single source module to contain particular symbolic debug information is also disclosed.
Patent CA-2127646-A1 (CA)
Title: Process for the preparation of modified phenol resins, their use and phenol resin foams produced therefrom
Inventor: MIRGEL RALF
IPC: C08G8/00
Filed: 1994-07-08
Abstract: ABSTRACT         A process for the preparation of modified phenol resols is disclosed.  The process comprises incorporating polyhydroxy modifiers into the starting materials for the resol resin preparation.  The modifiers are selected from the group comprising monosaccharides, disaccharides, sugar alcohols, urea/formaldehyde condensates and mixtures thereof.  The modified phenol resols are useful for the preparation of thermosetting foams, in particular for the insertion of flowers, which foams are biodegradable.
Patent CA-2132222-A1 (CA)
Inventor: MATSUDA HIROSHI
IPC: G02F1/1333
Filed: 1990-08-31
Abstract: The present invention provides a liquid crystal material disposed between said pair of substrates, wherein at least one of said substrates is provided with a film comprising a polyimide compound having in its polyimide main-chain structural unit at least one alkyl side chain containing an alkyl chain moiety having a length of 2 to 10 carbon atoms.
Patent CA-2134012-A1 (CA)
Inventor: PREDKO MICHAEL
IPC: G06F11/28
Filed: 1994-10-21
Abstract: An interface is provided in the form of a card, for plugging into an expansion bus socket of a personal computer main board including a microprocessor, the card having an external interface through which it may be connected to a further personal computer acting as a test controller.  The card carries random access memory which can be written sequentially through the external port and located to a portion of the memory space of the microprocessor normally occupied by a read only memory on the main board.   Once written, the content of the memory can be accessed in a random access  basis  by the main board  in response to addresses appearing on the expansion bus which are in that portion of the memory space.  The board also provides for communication between the test controller and the main board via  an address  in the  input/output port space of  the microprocessor.     This  arrangement  enables  the  test controller to test both programs for use in said read only memory space, and the hardware of the main board, without a substantial investment in specialized hardware.
Patent CA-2137351-A1 (CA)
Title: Laminating resin having low organic emissions
Inventor: SMEAL THOMAS W
IPC: C09D4/02
Filed: 1994-03-14
Abstract: A lamination resin comprising (A) an acrylated or methacrylated cycloaliphalic epoxide, (B) an acrylated or methacrylated alkoxylated bisphenol-A, in a weight ratio of (A) to (B) of about 3 to 1 to about 1 to 5, and (C) about 5%, to about 50%, based on the total composition, cyclohexyl methacrylate.  Vinyl toluene and ethylene glycol dimethacrylate are also used to modify certain properties of the resin.