baber/WOPTO huggingface dataset:
Patent CA-2079973-A1 (CA)
Title: Metallic oxides
Inventor: DRANSFIELD GRAHAM P
IPC: C04B41/52
Filed: 1992-10-06
Abstract: ABSTRACT OF THE DISCLOSURE                   METALLIC OXIDES       A process for coating particulate zirconia for use in ceramics is claimed. The particulate zirconia is coated with a hydrous oxide of a stabilising metal such as yttrium, an alkaline earth metal or a rare earth metal by hydrolysis of a salt of the metal. An initial dispersion of the zirconia is prepared at a pH above 7.5 and, preferably, in the presence of an organic dispersing agent.  The coated zirconia produced according to the process has been shown to form ceramic bodies with a higher strength than those prepared from particulate zirconia coated by prior known processes.
Patent CA-2080970-A1 (CA)
Title: Short stroke casing valve with positioning and jetting tools therefor
Inventor: SZARKA DAVID D
IPC: E21B23/00
Filed: 1992-10-20
Abstract: A short stroke casing valve with positioning and jetting tools therefor.  The casing valve has a sliding sleeve within a housing.  The housing defines a housing communication port therethrough,  and  a  seal  is  disposed  on  longitudinally opposite sides of the housing communication port.  The sleeve has a selective latch profile therein adapted for engagement by the positioning tool.  The positioning tool has outwardly biased  positioner  blocks  which  automatically  engage  the sliding sleeve.  The positioner blocks have a selective latch profile thereon which is adapted for engagement with the latch profile in the sliding sleeve.   This latch profile in the positioner  tool  prevents  undesirable  engagement  of  the positioner blocks with any other portion of the casing string except the  latch profile  in  the  casing valve.    In  one embodiment, a non-rotational jetting tool includes a plurality of circumferentially spaced jetting orifices therein.  There is a sufficient number of orifices so that at least one of the orifices is substantially radially aligned with the housing communication port when longitudinally aligned therewith, so that jetting through the housing communication port may be accomplished without rotation of the tool string.  A jetting tool having rotational jetting is also disclosed.
Patent CA-2081367-A1 (CA)
Title: Batch treatment process and apparatus for the disinfection of infectious waste
Inventor: PEARSON ERICH H
IPC: B09B3/00
Filed: 1991-02-28
Abstract: ABSTRACT           A process and apparatus for the batch treatment of infectious waste material in a fluidized bed reactor utilizing gas oxidation, preferably ozone gas diluted in air.  The process and apparatus provide for the disinfecting of infectious waste in a rapid, cost efficient manner allowing for disposal of such infectious waste material in an environmentally acceptable manner.
Patent CA-2083151-A1 (CA)
Title: Low friction, abrasion resistant polymer coating
Inventor: CROSS VIRGINIA R
IPC: B60J1/02
Filed: 1991-05-16
Abstract: The invention relates to certain low friction abrasion resistant polymer coatings. The polymer coatings consist of thermoplastic materials based on blends of elastomers with high density polyethylene comprising a high molecular weight component. The appropriate balance of crystallinity, durability and flexibility can be achieved by selecting the proper amount of low, medium and high molecular weight high density polyethylene. The coating is particularly useful for weather-stripping material for automobile window channels.
Patent CA-2083308-A1 (CA)
Title: Power factor matching in an ac power meter
Inventor: VOISINE JOHN T
IPC: G01R21/133
Filed: 1992-11-19
Abstract: A solid-state AC energy consumption meter includes an array of AC signal transducers which provide voltage and current signals to a watt transducer chip. The watt transducer chip operates on the multi-phase voltage and current signals to produce AC energy consumption data which is fed to a register for visual display.  In one aspect of the invention, a calibrating resistive component is placed in series with the input to the primary coil of the potential transformer for each phase.  The value of the resistive component is calibrated to produce an appropriate change in the phase angle difference between the potential transformer secondary voltage and current transformer secondary current. More particularly, the addition of the resistance of the primary of the potential transformer provides the necessary amount of phase lead to the potential transformer to account for this phase error difference.
Patent CA-2083389-A1 (CA)
Inventor: COSTELLO DAVID J
IPC: A61B5/1459
Filed: 1991-05-22
Abstract: A method for making an optical probe comprises forming a fibre bend in an optical fibre, placing the fibre bend over a mandrel, holding the optical fibre taut, applying potting material to the optical fibre, curing the potting material, removing the mandrel, applying further potting material to inter alia fill the space previously occupied by the material, and curing the potting material.
Patent CA-2083802-A1 (CA)
Inventor: GARCIA-GOLDING FERNANDO
IPC: G01N33/28
Filed: 1992-11-25
Abstract: The present invention relates to an apparatus and a method for determining the water content of an oil-in-water emulsion.  The apparatus includes a first sensor for measuring the real part of specific admittance of the emulsion, a second sensor which acts as a temperature compensation device and electronic circuitry for producing a signal representative of the water content of the emulsion.  The method for determining the water content comprises measuring the real part of specific admittance of an oil-in-water emulsion and providing a signal representative thereof, providing a reference signal indicative of the emulsion temperature, adjusting the measured real part of specific admittance signal with the reference signal and converting the adjusted signal into a current signal representative of the percentage water content of the emulsion.
Patent CA-2084929-A1 (CA)
Title: Catalyst and process for cracking hydrocarbons with highly attrition resistant mesoporous catalytic cracking catalysts
Inventor: WACHTER WILLIAM A
IPC: B01J29/06
Filed: 1992-12-09
Abstract: A catalytic cracking catalyst and process for converting a hydrocarbon feedstock at elevated temperature in the substantial absence of hydrogen, into lower average molecular weight, lower boiling hydrocarbons useful as transportation fuels. The catalyst is a composite of a crystalline aluminosilicate zeolite in concentration ranging as hi gh as about 80 percent, based on the total weight of the catalyst, within a mesoporous silica-alumina matrix. The matrix, preferably, is constituted of silica sols modified by alumina and clay and it is characterized as of polymodal pore size distribution, as measured by mercury porosimetry, a first mode wherein at least 75 percent, preferably about 80 percent to 90 percent, of the pore volume measured between 45 Angstroms and 2000 Angstroms is in pores greater than 160Angstroms in diameter, and a second mode wherein up to about 20 percent of the pore diameters are greater than 100 Angstroms but less than 160 Angstroms in diameter. These catalysts are highly active, and selective in the production of olefins without high coke made. The attrition-resistance of these catalysts, as measured by the Davison Index, is quite low, ranging generally from about 1 to about 8, more generally from about 1 to about 5, or less.
Patent CA-2087478-A1 (CA)
Title: Latent curing agent for epoxy resin and its preparation
Inventor: TSAI HSI-CHUAN
IPC: C08G59/18
Filed: 1993-01-18
Abstract: Abstract of the Disclosure A latent curing agent for epoxy resins in the form of finely divided particles is disclosed, along with its method of preparation.  An amine/epoxy adduct is formed in small particles with an encapsulating layer of polyfunctional epoxy or isocyanate on the surface by an emulsion precipitation method.
Patent CA-2088158-A1 (CA)
Title: Pacemaker with optimized rate responsiveness and method of rate control
Inventor: BEGEMANN MALCOLM J S
IPC: A61N1/365
Filed: 1991-08-08
Abstract: A pacemaker system is provided for rate responsive pacing, wherein rate is controlled as a function of two or more sensor inputs (61, 62), each sensor providing a signal representing a respective different control parameter. Preferably a first sensor signal represents a physiologically accurate although slow response signal such as QT interval, and a second sensor represents a relatively fast response such as activity. The two parameter signals are processed so that they are directly comparable and can be compared as indicators of pacing rate throughout the desired pacing range (63, 64). The algorithm utilizes a parameter control reference curve for each respective parameter, such reference curve representing the desired correlation between pacing rate and the parameter signal (65). Rate control is accomplished by determining the difference between each processed parameter signal and its corresponding reference point for the current pacing interval (76), and logically analyzing the two differences to determine which is used to indicate change in pacing rate (77, 79, 80, 82). Each parameter reference curve is automatically adjustable to correspond to patient conditions (Fig. 17). Automatic drift correction of the fast response parameter, such as activity, is used to compensate for conditions where the fast response signal is not likely to be physiologically reflective of the patient condition (67, Fig. 18A).
Patent CA-2091169-A1 (CA)
Title: Homogeneous tar and cementitious composition and process
Inventor: SCHNEIDER JOHN F
IPC: C04B7/26
Filed: 1991-08-29
Abstract: Improved cementitious compositions having increased flexural, tensile and shear-bond strength, increased wear resistance, decreased water permeability and enhanced workability than previous cement compositions, which are prepared with water treated with an emulsified tar component, and preferably a residual amount of sodium tripolyphosphate, are provided. Methods of forming shaped articles therefrom are also provided.
Patent CA-2091704-A1 (CA)
Title: Process for the production of molded parts
Inventor: WAGNER JOACHIM
IPC: C08J11/06
Filed: 1993-03-16
Abstract: Mo-3866 LeA 28,906 PROCESS FOR THE PRODUCTION OF MOLDED PARTS         ABSTRACT OF THE DISCLOSURE A process for the production of molded parts from reaction mixtures of a) crosslinked isocyanate polyaddition products having densities of from 0.005 to 1.8 g/cm3, containing urethane and/or urea groups, and, optionally, containing fillers and/or reinforcing materials; b) from 0.1 to 10,000 parts by weight, per 100 parts by weight of component a), of thermoplastic plastics; optionally, containing fillers and/or reinforcing materials, and c) recycling additives selected from the group consisting of c1) amorphous polyolefins, c2) chemically modified amorphous polyolefins, c3) chemically modified partially crystalline polyolefins, and mixtures thereof. The reaction mixture for the production of molded parts may optionally contain d) auxiliary substances and additives. Molded parts produced according to this process are also the subject of this invention.      Le A 28 906-Foreign Countries
Patent CA-2094978-A1 (CA)
Title: Device for heat shrinking film onto an open-topped container
Inventor: BAKKER WILLIAM J
IPC: B65B7/16
Filed: 1993-04-27
Abstract: A device for heat shrinking thin film onto open-topped containers to form spill-resistant covers is shown.      A radiant energy source is intermittently energized in association with timers to direct radiant energy towards the thin film. An energy absorbing body is associated with the thin film to absorb energy and create heat adjacent to the film which in turn causes the thin film to shrink. The energy absorbing body can be the adaptation of the thin film to be opaque to the radiant energy by either being coated with an energy absorbing coating such as printing, or being made partially opaque by means of tinting. The container can also be adapted to absorb energy by including a darkened band adjacent the upper edge of the rim. The device can also interpose an energy absorbing body, such as a darkened aluminum screen adjacent to the film to be heated to cause the thin film to shrink. The device shrinks the thin film around the rim first, then shrinks the film across the top of the container to form a spill-resistant cover. In one embodiment, printed patterns on the film can be used to create perforations.
Patent CA-2095600-A1 (CA)
Title: Casting of metal objects
Inventor: LEGGE RODNEY A
IPC: B22D27/04
Filed: 1991-11-04
Abstract: The mould assembly comprises mould segments of generally non-thermally conductive material which define a mould cavity for receiving liquid metal through at least one ingate. A thermal extraction member of a high thermally conductive material contacts a portion of the mould cavity through which heat can be extracted rapidly from said liquid metal and transferred to said thermal extraction member to establish positive thermal gradients in the casting and thereby promote directional solidification. The heat extraction from said liquid metal may optionally be enhanced by heat extraction from said thermal extraction member. The mould assembly is also provided with a seal to selectively isolate the mould assembly from the liquid metal source to allow the mould assembly to be removed from the casting station to the cooling station before any substantial solidification has occurred, providing a more efficient use of the casting station.
Patent CA-2100490-A1 (CA)
Title: Process for crushing raw lignite
Inventor: KASSECK KLAUS
IPC: B02C15/00
Filed: 1993-07-14
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a process for crushing raw lignite.  The normally moist raw lignite is dried with an exit temperature after drying of approximately 70 to 85°C.  The dried raw lignite is then conveyed to an air-swept roller mill wherein the raw lignite  is  crushed between a crushing pan and crushing rollers.   Crushed lignite is directed outwardly from the crushing pan to an annulus wherein a fluidized bed of crushed lignite in cold and/or ambient air is formed.   The air flow reduces the temperature of the crushed lignite to a temperature below 60°C.
Patent CA-2100854-A1 (CA)
Title: Interchangeable pneumatic connector for blood pressure monitors
Inventor: SUTTON THOMAS K
IPC: A61M39/00
Filed: 1993-07-19
Abstract: INTERCHANGEABLE PNEUMATIC CONNECTOR FOR BLOOD PRESSURE MONITORS            ABSTRACT OF THE DISCLOSURE     A  fitting  for  a  blood  pressure  cuff  providing  an interchangeable pneumatic connection for attachment to different types of devices.  The fitting has a first end which attaches to the cuff tubing set and, for example, may have a barbed outer surface.   The second end is provided with a female luer fitting as well as a threaded bayonet-style  connection.    Thus,  the  cuff  will  be attachable to either a male luer fitting on a tubing set or a female threaded, bayonet-style connection on a tubing set, each coming from a device.
Patent CA-2101771-A1 (CA)
Inventor: REZKALLAH KAMIEL
IPC: F24F12/00
Filed: 1991-12-09
Abstract: A heat exchange process and apparatus are especially suited for use in heat recovery applications, especially in a run-around heat exchanger. The run-around heat recovery system has two liquid to gas heat echangers (10, 12), one for heat transfer with stale air being exhausted and one for heat transfer with fresh air being taken in. The two heat exchangers (10, 12) are linked with a common coupling liquid so that heat may be extracted from one of the air flows and added to the other. To improve the heat transfer process, a gas is injected into the liquid just before it enters one or both of the heat exchangers. The resultant mixed phase flow produces a much higher heat transfer coefficient in the heat exchangers (10, 12), yielding a significant improvement in the system performance.
Patent CA-2101774-A1 (CA)
Title: Test and model for alzheimer's disease
Inventor: HARDY JOHN A
IPC: C12Q1/68
Filed: 1992-01-21
Abstract: Model systems of Alzheimer's disease comprise a DNA sequence encoding an amy-loid precursor protein (APP) isoform or fragment that has an amino acid substitution. The substituted amino acid may be other than valine at the amino acid position corresponding to amino acid residue position 717 of APP770. Methods of determining genetic predisposi-tion to Alzheimer's disease are also disclosed.
Patent CA-2101828-A1 (CA)
Title: Electronic antitheft device for a motor vehicle
Inventor: SELLEM ALBERT
IPC: B60R25/34
Filed: 1993-08-03
Abstract: Electronic antitheft device for a motor vehicle ABSTRACT     The electronic antitheft  device  for  a  motor  vehicle provided with conventional functional elements allowing  the control of the operation of the vehicle, namely for  example an electric battery for the general electric power supply of the vehicle, an electric starter and brakes, comprises: a remote control box for  transmitting  a  digital  code carried for example by an infrared beam, said remote control box cooperating with a receptacle disposed  in  the  driving compartment of the vehicle so that said digital code is only transmitted if the remote control box  is  disposed  in  the receptacle; an electronic centre comprising on the input side  means for receiving said digital code, and connected on the output side to one or more of said functional  elements  so  as  to control their operation in the case of the reception of said digital code.     Figure 1
Patent CA-2102464-A1 (CA)
Title: Method for visual authentication by images transmitted over a telecommunication system
Inventor: WITSCHORIK CHARLES A
IPC: G06Q20/00
Filed: 1993-11-04
Abstract: METHOD FOR VISUAL AUTHENTICATION BY IMAGES TRANSMITTED OVER A TELECOMMUNICATION SYSTEM Abstract A merchant transmits over a channel in a telecommunications system the credit card number of a person seeking to making a credit card purchase. Therequest is received by a database and utilized to locate a record corresponding to the credit card number. A visual image stored in the database which corresponds to the credit card number is transmitted to a visual display terminal at the merchant location to assist the merchant in authentication of the authority of the personpresenting the credit card.
Patent CA-2102953-A1 (CA)
Title: Link piece for bony elements
Inventor: BERTHOLET MAURICE
IPC: A61B17/86
Filed: 1993-11-12
Abstract: ABSTRACT               LINK PIECE FOR BONY ELEMENTS       A link piece for bony elements comprises a central portion (2) and at least two anchoring portions (3, 4) rigidly connected to the central portion. The central portion (2) is made of a shape memory effect material and the central portion comprises a central hole (5), whereby a shape variation of this central portion (2) causes a variation of the distance between said at least two anchoring portions (3, 4) while these at least two anchoring portions move from each other along a straight line.                                (figure 1 )
Patent CA-2105378-A1 (CA)
Title: Compositions and methods of treatment of a variety of disorders utilizing etianate and agonists thereof
Inventor: PACIUCCI PAOLO A
IPC: A61K38/00
Filed: 1992-03-20
Abstract: A method is presented whereby the side effects but not the activity of biological response modifiers are diminished by the administration of etianate or agonists thereof to a patient receiving with biological response modifiers such as interleukins and tumor necrosis factor.
Patent CA-2106376-A1 (CA)
Title: Cylinder lock assembly
Inventor: BEST WALTER E
IPC: E05B19/00
Filed: 1992-03-27
Abstract: A cylinder lock assembly (11) includes a core (82), a key plug (80) mounted for rotation in the core (82), and a key (10). The key plug (80) is formed to include a keyway (108) and a plurality of tumbler pin bores (110) opening into the keyway (108). The key (10) has a bow (12) and a blade (14) appended to the bow (12). The blade (14) includes a bitted portion (22) and a stop shoulder (56) at the tip of the blade (14) for positioning the bitted portion (22) in alignment with the tumbler pin bores (110). A separate drive member (16) is provided on the key (10) for rotating the key plug (80) relative to the core (82) to actuate the cylinder lock assembly (11). The drive member (16) is located between the bitted portion (22) and the bow (12) and is configured to cooperate with a bottom portion of the key blade (14) to provide the primary torque or force for rotating the key plug in response to turning of the key (10) in the cylinder lock assembly (11) so that the bitted portion (22) and an offset portion (26) of the blade (14) do not carry substantial torque transmission load between the key (10) and the key plug (80) to rotate the key plug (80) in the core (82).
Patent CA-2107215-A1 (CA)
Title: Cooling and heating device using a solid-gas reaction
Inventor: CASTAING JEAN
IPC: F25B17/08
Filed: 1993-02-10
Abstract: PCT No. PCT/FR93/00135 Sec. 371 Date Oct. 7, 1993 Sec. 102(e) Date Oct. 7, 1993 PCT Filed Feb. 10, 1993 PCT Pub. No. WO93/16339 PCT Pub. Date Aug. 19, 1993.A cooling and heating device using a chemical reaction comprising at least four reactors, each containing a salt capable of chemically reacting with a gas, an enclosure for receiving gas from the reactors and an enclosure for conveying gas to the reactors. The device is arranged so that, during the chemical reaction, two reactors are at the same higher pressure level, while two reactors are at the same lower pressure level. According to the invention, the device also comprises a heat-transporting fluid circuit for transferring heat between the reactors, operating at the same presure level.
Patent CA-2108193-A1 (CA)
Title: Ladder stabilizer
Inventor: KENNETT DOUGLAS A
IPC: E06C7/48
Filed: 1993-10-12
Abstract: Abstract of the Disclosure A stand off brace of preferably one-piece tubular construction for use with ladders in which the brace includes a central generally V-shaped apex which is adapted to extend into and between the ladder rails such that increased rigidity between the brace and ladder is brought about.
Patent CA-2109228-A1 (CA)
Inventor: CODY IAN ALFRED
IPC: C10G45/62
Filed: 1992-05-05
Abstract: Nouveau catalyseur à porosité et à aire de surface élevées utilisé dans les procédés d'isomérisation de cire, notamment pour la production d'huiles de base ou d'huiles mélangées à indice de viscosité élevé et à point d'écoulement faible. Le catalyseur contient un métal aux propriétés catalytiques sélectionnées dans le groupe composé de métaux du groupe VIB et du groupe VIII, et de leurs mélanges, de préférence des métaux nobles du groupe VIII, et leurs mélanges, ou mieux de platine, lequel métal est présent en quantité comprise entre environ 0,01 et 5,0 % en poids; ce métal comprend également une quantité de fluor comprise entre environ 0,01 et environ 10,0 % en poids. Le catalyseur comprend un support métal-oxyde réfractaire constitué de préférence en majorité (c'est-à-dire au moins 50 % en poids) d'alumine ou mieux, composé complètement d'alumine, par exemple d'alumine gamma ou êta. Le catalyseur fini présente une porosité exprimée en volume des pores, d'au moins environ 50 cc/gramme et une aire de surface telle que lorsque l'on multiplie la porosité par l'aire de surface, on obtient au moins environ 107, de préférence au moins environ 110, ou mieux au moins environ 115, ou mieux encore au moins environ 120. Ce processus à rendement élevé permet de transformer, par isomérisation, la cire en produits liquides, de préférence des huiles de lubrification de base ou mélangées à indice de viscosité élevé et à point d'écoulement faible.
Patent CA-2110612-A1 (CA)
Inventor: GUSIK MEINHARD
IPC: B29C43/10
Filed: 1993-12-03
Abstract: In order to produce mouldings from ultrahigh-molecular-weight polyethylene, the polymer is heated to from 160 to 280@C in a mould without pressure or under a pressure of up to 0.5 MPa and then cooled to room temperature under a pressure of from 4 to 20 MPa.