baber/WOPTO huggingface dataset:
Patent CA-2006419-A1 (CA)
Inventor: CAMENZIND HUGO
IPC: C10M135/18
Filed: 1989-12-21
Abstract: A composition comprising a) a lubricant or a hydraulic fluid and b) at least one compound of the general formula I    in which x = 1 or 2 and, if x=1, R is as defined for R1 or R3-O- or, if x=2, R is as defined for R8, and R1 and R3 are, for example, alkyl, cycloalkyl, alkenyl, phenyl, naphthyl, aralkyl or alkaryl, or alkyl, cycloalkyl, alkenyl, phenyl, naphthyl, aralkyl or alkaryl, which are monosubstituted or polysubstituted by groups from the series comprising halogen, cyano, nitro, e.g. -OCH3 or e.g. -COOCH3, or alkyl, cycloalkyl, alkenyl, aralkyl or alkaryl which are interrupted by one or more groups from the series comprising -O-, -S-, -NH-,  , or alkyl, cycloalkyl, alkenyl, aralkyl or alkaryl which are monosubstituted or polysubstituted by groups from the series comprising halogen, cyano, nitro, e.g. -OCH3 or e.g. -COOCH3 and interrupted by one or more groups from the series comprising -O-, -S-, -NH-,  or ; , and R2 is NR4R5, -OR6 or -SR7, and R4 and R5 are identical or different and are, for example, -H, alkyl, phenyl, naphthyl, aralkyl or alkaryl, or R4 and R5, together with the N atom linking them, form, for example, a piperidine or morpholine radical, and R6 and R7 can be alkyl which may be interrupted by one or more groups from the series comprising -O-, -S-, -NH-,   or  , or are, for example, phenyl, naphthyl, alkaryl or aralkyl, and R8 can be alkylene which may be interrupted by at least one -O- group or alkylidene which may be interrupted by at least one -O- group. Some of the compounds of the formula I are novel. The compositions show an improved stability towards oxidative degradation, confer protection under extreme pressures and reduce frictional wear.
Patent CA-2011909-A1 (CA)
Title: Lightweight cooling tower with cruciform columns
Inventor: BARDO CHARLES J
IPC: F28C1/00
Filed: 1990-03-09
Abstract: A structural column has a generally cruciform cross section. The column includes a generally rectangular core section formed by four orthogonally related walls and four flange portions.  Each flange portion is provided by a pair of spaced-apart parallel flanges which are extensions of a pair of parallel walls.  The column is particularly suited for a cooling tower which includes at least four verticularly extending columns.  A horizontal beam extends between each pair of adjacent columns, and the ends of each beam are inserted between the parallel flanges of the columns.  A side panel is supported by each beam, and a cover is supported by the side panels and the columns.
Patent CA-2013726-A1 (CA)
Title: Hydraulic impedance test method
Inventor: MELLOR DAVID W
IPC: E21B43/26
Filed: 1990-04-03
Abstract: Case 7141(2) ABSTRACT OF THE DISCLOSURE              HYDRAULIC IMPEDANCE TEST METHOD      A method for determining the height and length of a fracture (3) in a borehole (1) involves generating pressure waves in the fluid in the wellbore using a valve (4) and measuring the response at the well-head by means of a transducer (5).  A theoretical model of the wellbore-fracture system is generated and compared with the measured response to determine the height and length of the fracture.
Patent CA-2017643-A1 (CA)
Inventor: CALLAHAN KATHLEEN C
IPC: A23C19/08
Filed: 1990-05-28
Abstract: Premium quality, rich melting mozzarella/cheddar cheese products such as hot-packed slices having a mozzarella-like firm texture and a cheddar flavor profile.
Patent CA-2019441-A1 (CA)
Title: Frame member for supporting multiple bearings
Inventor: MORNER ROBERT W
IPC: F16C25/04
Filed: 1990-06-20
Abstract: FRAME MEMBER FOR SUPPORTING MULTIPLE BEARINGS          Abstract of the Disclosure A  frame  member,  or  bearing  block,  for supporting bearings for two or more parallel shafts includes two spaced bearing receiving bores and a heat barrier  slot.    The  heat  barrier  slot  includes  a transverse segment which extends between the two bearing receiving bores and longitudinal segments which extend outwardly beyond the centers of at least one of the bores.  The bearing block can be provided with three or more bores for supporting three or more parallel rolls.          In the latter case the heat barrier slot includes a center  section  of  Y-shaped  configuration  including transverse segments disposed between each pair of bores and endwise  segments extending outwardly beyond the center of each bore.
Patent CA-2021555-A1 (CA)
Title: Support table for bench saw
Inventor: ROUSSEAU TONY
IPC: B27B5/16
Filed: 1990-07-19
Abstract: SUPPORT TABLE FOR BENCH SAW                    ABSTRACT OF DISCLOSURE    A foldable table structure to releasably support the peripheral undersurface of the table portion of a commercial bench saw to provide both support for and additional table top space about the bench saw table.  The foldable table provides an opposed rail, ladder-type frame to support both the undersurface of a bench saw table and modular top elements to allow various table top configurations.  The foldable table releasably carries a lateral extension element and releasably supports an auxiliary table that is selectively positionable either perpendicularly or in an elongate orientation relative to the principal table.  The configuration of the saw mounting structure allows use with most bench saws of modern commerce.          The principal table provides an adjustably positionable fence structure and allows use of the traditional amenity structures commonly associated with ordinary table saws.
Patent CA-2022174-A1 (CA)
Title: Reduction of transient thermal stresses in machine components
Inventor: LORETT JERZY A
IPC: F04D29/12
Filed: 1990-07-27
Abstract: ABSTRACT OF THE DISCLOSURE    A method of treating a surface of a machine element to permit the outer layers thereof to freely expand when repeatedly subjected to sudden temperature variations without thermal stressing the inner layers thereof.
Patent CA-2023537-A1 (CA)
Title: Package for perishable fruits and vegetables
Inventor: BELL LAURENCE D
IPC: B65D81/26
Filed: 1990-08-17
Abstract: PACKAGE FOR PERISHABLE FRUITS AND VEGETABLES               ABSTRACT OF THE DISCLOSURE         A package for perishable respiring fruits or vegetables or a combination of respiring fruits and vegetables includes a substantially rigid, substantially inflexible container adapted to hold the perishable; a substantially rigid, substantially inflexible cover for the container which, when placed on the container, forms a package permeable to gaseous oxygen and to gaseous carbon dioxide; oxygen-permeable and carbon dioxide-permeable flexible packaging film surrounding the container and its cover; and within the packaging film, an equilibrium gaseous atmosphere dictated by an atmosphere quotient or range of quotients sufficient to optimize and sustain the shelf life of the perishables inside the package for a time period of at least about three days.
Patent CA-2024047-A1 (CA)
Title: Display tube assembly and mounting process thereof
Inventor: OHKOSHI AKIO
IPC: G09F9/313
Filed: 1990-08-27
Abstract: A display tube assembly is provided, in which plug pins are mounted on a printed circuit board, this printed circuit board having the plug pins soldered thereto is attached to a display tube and the display tube is accommodated in a case thereby being made watertight. According to this arrangement, the plug pins, the printed circuit board and the display tube are coupled together in the outside of the case so that a working property in the assembly process can be improved considerably. Further, since a window portion is not provided at the rear surface of the case, the reliability in the watertight process in the display tube can be improved considerably.
Patent CA-2025255-A1 (CA)
Title: Transillumination method and apparatus for the diagnosis of breast tumors and other breast lesions
Inventor: GRENIER LEONARD E
IPC: A61B8/08
Filed: 1990-09-13
Abstract: ABSTRACT OF THE DISCLOSURE           A method and apparatus for enhancing the contrast of a local area of interest within an electronic image of an object, such as a female breast, which has been transilluminated by non-ionizing radiation such as light or sound.  The area of interest may be a cancerous tumor, cyst or another object which differentially absorbs or transmits the radiation.          Enhancement of contrast is by normalization of the electronic image.  Normalization includes modeling the illumination field of the image to compensate for the non-uniformity of the illumination field, and then combining the modeled field with the original image.          Four normalization processes are disclosed: Gaussian curve fitting, geometric mean smoothing, arithmetic mean smoothing, and arithmetic mean smoothing only within the boundary of the local area of interest.  Also disclosed is a process for highlighting local areas which are the result of enhanced transmission of the radiation, such as potential cyst sites, and color mapping more than one displayed image.  The normalized image may be displayed for analysis.
Patent CA-2028971-A1 (CA)
Title: Solutions of polyimidesiloxanes in butyrolactone
Inventor: LEE CHUNG J
IPC: C09D183/10
Filed: 1990-10-31
Abstract: Case 5886 RDF/dka SOLUTION OF POLYIMIDESILOXANES        IN BUTYROLACTONE                      Abstract of the Disclosure Disclosed is a solution in butyrolactone of a diglyme-insoluble polyimidesiloxane.  The polyimidesiloxane is the reaction product of a dianhydride selected from the group consisting of 3,3',4,4'-benzophenone tetracarboxylic acid dianhydride, 3,3',4,4'-oxydiphthalic anhydride, and mixtures thereof, with a mixture of a non-siloxane diamine and a siloxane diamine in a molar ratio of about 0.1 to about 16, where said non-siloxane diamine is selected from the group consisting of 2,3-diaminotoluene, 3,5-diamino-tert-butylbenzene, 2,5-diamino-trifluoromethyl benzene, 2,6-diamino-4-trifluoromethyl pyridine, and mixtures thereof.
Patent CA-2031449-A1 (CA)
Inventor: HENSE ULRICH
IPC: C09D5/34
Filed: 1990-12-04
Abstract: Abstract of the Disclosure Cycloaliphatic compounds, which have one or more ethylenically unsaturated substituents, have proven their value as components of borehole-filling masses, optionally together with other curable components.
Patent CA-2031550-A1 (CA)
IPC: G05D23/19
Filed: 1990-12-05
Abstract: Abstract of the Disclosure An outdoor unit at least possesses a combustion unit for presenting combustion heat, a heating medium heating part for heating the heating medium with the combustion heat to vary in phase from liquid to gas, and a heating medium transferring part.  A plurality of indoor units each has at least an indoor heat exchanger, and a required heating capacity detecting part for detecting a required heating capacity in a region to be heated requested to the indoor heat exchanger.  The detecting part comprises a room temperature setting part, a room temperature detector, and a required heating capacity data output part for delivering required heating capacity data in the region to be heated depending on the difference between the preset room temperature the detected room temperature.  The distributing part couples the plural indoor units parallel to the outdoor unit so as to form individual enclosed heating medium circulation cycles.  The controller controls the combustion quantity of the combustion unit and the heating medium transferring capacity according to the sum of the required heating capacity data, and controls the heating medium distri-bution amount of the distributing part for distributing the heating medium into each indoor heat exchanger depending on the ratio of the required heating capacity data.
Patent CA-2033964-A1 (CA)
Title: Process for the preparation of spherical particles of magnesium alkoxide
Inventor: HORNS UDO
IPC: C07C31/30
Filed: 1991-01-10
Abstract: ABSTRACT           A process for the preparation of finely divided, spherical magnesium alkoxide is disclosed.  The product is prepared by spray drying of an alcoholic solution of the corresponding carboxylated magnesium alkoxide and subsequent drying and decarboxylation of the resulting finely divided carboxylated magnesium alkoxide.  The solution is sprayed via a two-material nozzle with inner atomization, which is operated in the part-load range at 10 to 30% of its capacity into an inert accompanying gas which is under a pressure of 1.0 to 1.2 bar, has been preheated to 100-140°C and if fed concurrently.  The magnesium alkoxide so prepared is used for the preparation of a catalyst for the polymerization of .alpha.-olefins.  Polypropylene prepared using such a catalyst has a high stereospecificity and a high bulk density.
Patent CA-2034350-A1 (CA)
Title: Axial thermal shield support for a mr magnet
Inventor: HERD KENNETH G
IPC: H01F6/04
Filed: 1991-01-17
Abstract: AXIAL THERMAL SHIELD SUPPORT FOR A              MR MAGNET        Abstract of the Disclosure Two pair of thermal shield axial supports are provided.  Each support includes a strand of wire brazed on either end into threaded studs.  One stud is threaded into a topped hole in the end of the magnet cartridge.  The stud on the other end extends through a clearance hole on the end flange of the thermal shield.  Belleville spring washers are compressed against the shield by a nut.  Prior to cool down, the Belleville washers are compressed.  As the shield and magnet cool down, the shield contracts axially with respect to the magnet cartridge, thus relaxing the washer stack compression.  The wire tension relaxes from the maximum pretension to a nominal tension at operating temperature.
Patent CA-2034550-A1 (CA)
Title: Process for making metallized polyethylene plexifilamentary film-fibril sheet
Inventor: JONES DAVID C
IPC: C08J7/06
Filed: 1991-01-18
Abstract: Abstract A metallized high specular gloss polyethylene plexifilamentary film-fibril sheet with very low emissivity is made by a process of calendering a polyethylene film-fibril sheet between a smooth metal roll and a soft, resilient roll to form a sheet of high specular gloss, followed by vacuum metallization of the smooth high specular surface. Such metallized sheets are useful as radiant barriers or roof liners for energy savings purposes.
Patent CA-2034642-A1 (CA)
Title: A process for making simulated fruit pieces
Inventor: LUGAY JOAQUIN C
IPC: A23L21/12
Filed: 1991-01-21
Abstract: The present invention is concerned with a simulated fruit piece suitable for combination with a dry food product having a moisture typically of from 2-3% and wherein the fruit piece maintains its softness and the food product maintains its crispness after various storage conditions, said fruit consisting of fruit solids, a fruit concentrate, a thickening agent, edible food grade acid, sweeteners, coloring, and glycerol. The glycerol/sweetener combination functions as a humectant system which.produces a fruit product with an Aw of between about 0.2 to 0.50. A process for preparing said fruit piece is also disclosed wherein a solid phase comprising a fruit solids is combined with a hot liquid phase and the mixture extruded into fruit ropes or strands and cut into the desired shape or form.
Patent CA-2036127-A1 (CA)
Title: Circuit element measuring apparatus and method
Inventor: WAKAMATSU HIDEKI
IPC: G01R27/02
Filed: 1991-02-11
Abstract: ABSTRACT        The circuit element being measure disconnected to a signal source, a volt meter, a range resistance in a zero detection amplifier by means of four shielded lines. Compensation network is provided to increase the accuracy of measurements and easily correct the changes, if any, in the shielded lines and/or range resistance.
Patent CA-2037849-A1 (CA)
Title: Procede de formation du diagramme d'une antenne active a haut rendement pour radar a balayage electronique et antenne mettant en oeuvre ce procede
Inventor: CAILLE GERARD
IPC: H01Q21/00
Filed: 1991-03-08
Abstract: L'invention  vise  un  procédé  de  formation  du diagramme d'une antenne active à haut rendement pour radar à balayage électronique, et une antenne mettant en oeuvre ce procédé.  Le procédé comprend des étapes dans lesquelles on dissocie les lois d'illumination, donc des diagrammes, en émission et en réception; et on réalise une illumination équi-amplitude en émission pour maximiser le rendement des amplificateurs émission tous identiques, et minimiser  leur consommation en énergie continue et leur dissipation.   La présente  invention  se rapporte également à une antenne mettant en oeuvre ce procédé.  La présente invention peut être appliquée notamment au domaine des radars spatiaux.
Patent CA-2038403-A1 (CA)
Inventor: MICHAUD MARK D
IPC: C23F3/00
Filed: 1991-03-15
Abstract: A composition for use in the physicochemical surface refinement of objects having surfaces of titanium, nickel, and alloys of each, normally in a vibratory mass finishing process, comprises the combination of sulfamic acid, ammonium bifluoride, and hydrogen peroxide.  The maximum concentration of the peroxide is controlled to avoid inhibiting or arresting the reaction with the metal; maintaining a minimum concentration prevents excessive metal dissolution, pitting and other undesirable surface defects.
Patent CA-2038930-A1 (CA)
Title: Thermal atherectomy device
Inventor: TAYLOR JAMES M
IPC: A61B18/08
Filed: 1991-01-09
Abstract: ABSTRACT OF THE INVENTION         A thermal atherectomy catheter is provided with a heated temperature self regulating tip (1) for insertion in an artery to vaporize an atherosclerotic plaque obstruction particularly in coronary and peripheral arteries.  The heater (101) is located at the distal end of the catheter and has a winding of fine wire (7) around a ferromagnetic core (2) with the wire being connected via a transmission line (20) to a high frequency constant alternating current source in the megahertz range.  The catheter, which may or may not employ a guide wire, is inserted into and through the lumen of a vessel and guided usually with the assistance of fluoroscopy to the location of the stenosis.  The heater (101) is energized to vaporize the plaque, the temperature not exceeding a desired temperature as determined by the Curie temperature of the ferromagnetic material.
Patent CA-2040038-A1 (CA)
Title: Silicone sealants
Inventor: REVIS ANTHONY
IPC: C08G77/38
Filed: 1991-04-09
Abstract: SILICONE SEALANTS                           ABSTRACT          A silicone sealant prepared by curing and cross-linking methylhydrosiloxanes by contacting and forming a mixture of an allyl amide or an allyl ester with at least one methylhydrosiloxane in the presence of a Group VIII metal catalyst and heating the mixture of the allyl amide, the methylhydrosiloxane, a filler and the Group VIII metal catalyst, in the presence of ambient moisture until the methylhydrosiloxane becomes cured and cross-linked.
Patent CA-2043605-A1 (CA)
Title: Process for the partial combustion of cellulose spent liquors
Inventor: STIGSSON LARS
IPC: F23G7/04
Filed: 1991-05-30
Abstract: The present invention relates to a process for partial combus-tion of cellulose spent liquors using a burner connected to a reactor while adding an oxygen containing gas, maintaining a temperature of more than 700°C within the reactor and that at least half of the non-fuel related amount of oxygen which shall be added to the reactor to partially combust the cellulose spent liquor added through the burner, is added to the reactor as a hot oxygen containing gas added through a channel arranged coaxially around a liquor lance provided for the addition of said cellulose spent liquor, whereby the weight ratio between the oxygen of the oxygen containing gas and the cellulose spent liquor solids is in the range of 0.1-0.7:1.
Patent CA-2045344-A1 (CA)
Title: Polybutene based foam control compositions for aqueous systems
Inventor: NGUYEN DUY T
IPC: B01D19/04
Filed: 1991-06-25
Abstract: ABSTRACT         A composition to control foam in aqueous systems such as those found in papermaking operations comprising a polybutene and at least one surfactant having a melting or pour point below 20°C. The surfactants include polyethylene glycol esters, sorbitan ester, polyoxyalkylene ester, oleic diethanolamide and block copolymers of ethylene oxide and propylene oxide.  Due to their low melting point, these surfactants may be blended with the polybutene at room temperature resulting in a foam control composition that is translucent, resistant to deposition and highly effective.
Patent CA-2046842-A1 (CA)
Title: Process for the removal of ammonia from gases
Inventor: STAFFEL THOMAS
IPC: B01D53/58
Filed: 1991-07-11
Abstract: Process for the removal of ammonia from gases Abstract of the disclosure:          In order to remove ammonia from water vapor-containing gases, in particular offgases, the gases are brought into intimate contact with warmed polyphosphoric acid, the polyphosphoric acid advantageously having a P2O5 content of from 70 to 84 % by weight and a temperature of from 120 to 170°C.
Patent CA-2050945-A1 (CA)
Inventor: NAGABAYASHI RETSU
IPC: C22B3/10
Filed: 1991-09-09
Abstract: Abstract of the Disclosure Disclosed herein is a method for treating nickel magnesium silicate ores which includes a leaching step consisting of leaching a magnesium nickel silicate ore with hydrochloric acid, thereby separating the ore into a leach containing nickel, iron, and magnesium, and residues composed mainly of silica; a drying-calcining step consisting of drying up the leach and roasting the residues, thereby making all of nickel and iron and part of magnesium water-insoluble and also recovering hydrochloric acid, and a washing step consisting of washing the roasted product with water, thereby separat-ing it into a water-insoluble mass composed of all of nickel and iron and a portion of magnesium and an aque-ous solution of magnesium chloride, wherein said method being  characterized in that the roasting is carried out at a temperature from 150 °C to 250 °C.
Patent CA-2053019-A1 (CA)
Inventor: BALASKO MICHAEL M
IPC: C08L27/06
Filed: 1991-10-08
Abstract: ABSTRACT     Often common thermal stabilizers when used alone with commercial PVC resins are not sufficient for use in systems where thermal stability is required for extended periods of time, e.g., accumulator blow molding or hot runner (injection) molding. The incorporation of a metal salt of phosphoric acidinto a PVC formulation, or compound, having a primary stabilizer results in a substantial improvement in the thermal stability of the formulation during subsequent processing thereof. The PVC was polymerized at lower temperatures in the presence of a solvent. This provides polyvinyl chloride formulations which have increased thermal stability.
Patent CA-2054509-A1 (CA)
Inventor: BEGNIS MAURO
IPC: H01H31/16
Filed: 1991-10-30
Abstract: INTERRUPTEUR ROTATIF MULTIPOLAIRE. Un interrupteur rotatif multipolaire à enceinte (10) en matière isolante moulée, portant sur son pourtour interne des contacts fixes d'entrée et de sortie (15,16) et d'un contact fixe de mise à la terre (17), comporte une cloison isolante (29) intercalée entre le contact d'entrée (15) et le contact de mise à la terre (17). Un arbre de commande porte les ponts de contacts en forme de couteau constitués de deux lames s'étendant parallèlement, et dont les extrémités sont agencées en pinces. Les lames de contacts comportent dans leur partie centrale une échancrure qui évite toute venue en contact lors d'un fléchissement et de ce fait toute annulation de l'effet d'attraction dû aux forces électrodynamiques. Se référer à la figure 4.