baber/WOPTO huggingface dataset:
Patent CA-2000474-C (CA)
Title: Heat resistant polymers and blends of hydroquinone poly(iso-terephthalates)containing residues of p-hydroxybenzoic acid
Inventor: LAYTON RICHARD
IPC: A47J36/04
Filed: 1989-10-11
Granted: 1996-11-05
Abstract: This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (IV).         (I)                          (II)         (III)                         (IV) and blends of these polymers and articles made from both. Units (I), (II), (III), and (IV) are present in specified proportions as defined in the "Description  of the Invention."  The instant copolyesters display orientation in the molten state, good fiber ratings and high strength; they have melting points in the range of from about 340 to about 400°C and are melt-processible.  Advantageously, these compositions  filled with about 30 weight percent of glass fibers display heat distortion temperatures  of over 240°C up to about 280°C and higher, when measured  under a load of 264 psi.  When blended, certain properties are improved, particularly they are easier to melt fabricate, have a decreased tendency to blister and increased strength. These polymers  and blends may be used advantageously in ovenware, electronic components, electrical equipment,  and other end uses requiring high temperatures.
Patent CA-2006101-C (CA)
Title: Method and apparatus for pre-processing stainless steel strip intended to be cold-rolled
Inventor: KENMOCHI KAZUHITO
IPC: C21D8/02
Filed: 1989-12-20
Granted: 1996-11-12
Abstract: A method of pre-processing a stainless steel strip to be cold-processed comprising the steps of: annealing and pickling the stainless steel  strip  after  completing hot  rolling; applying liquid lubricant with a thickness of 1 µm or less to the surfaces of rolls before the rolls come into contact with the stainless steel strip; and rolling the stainless steel strip at a reduction ratio exceeding 5 %.  An apparatus for pre-processing a stainless steel to be cold-rolled comprising: annealing and pickling means having a mechanical descaling device and a pickling device; rolling means consisting of rolls arranged to be two or more stages; and means capable of applying liquid lubricant at a thin thickness to a work roll of the rolling means.
Patent CA-2007300-C (CA)
Title: Method and apparatus for determining the moisture content of a material
Inventor: JAKKULA PEKKA
IPC: G01N22/04
Filed: 1990-01-08
Granted: 2000-09-26
Abstract: In the method of the invention, a microwave signal is passed through a material whose moisture content is to be measured, the change in the velocity of the signal which has travelled through the material is measured and the moisture content is determined on the basis of the measured change and a known interdependence between the changes in the microwave signal velocity and the moisture content of the material. The apparatus comprises a transmitting device (1) which transmits a microwave signal through the material to be measured, and a detecting device {2) and a counting device (3) which measure the change of velocity of the signal transmitted through the material and determine the moisture content of the material on the basis of a known interdependence of the change of velocity of the microwave signal in question and change of moisture content of the material.
Patent CA-2014527-C (CA)
Title: Multifunctional viscosity index improver derived from amido-amine exhibiting improved low temperature viscometric properties
Inventor: CHUNG DAVID Y
IPC: C10M159/12
Filed: 1990-04-12
Granted: 1999-05-04
Abstract: Composition of matter useful as a multifunctional viscosity index improver for lubricating oil comprising reaction product of:        (i) (a)  copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer comprising intramolecularly heterogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains at least about 57 weight percent ethylene, wherein said low crystallinity segment contains not greater than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of Mw/Mn of less than 2 and a ratio of Mz/Mw of less than 1.8, and wherein at least two portions of an individual intramolecularly heterogeneous chain, each portion comprising at least 5 weight percent of said chain, differ in composition from one another by at least 7 weight percent ethylene, said copolymer grafted with (b) ethylenically monounsaturated carboxylic acid material having 1 to 2 carboxylic acid groups or anhydride group to form grafted ethylene copolymer; and (ii)      amido-amine or thioamido-amine comprising reaction product of (a) polyamine, and (b) alpha, beta-unsaturated compound represented by the formula   wherein X is oxygen or sulfur, Y is OR4, -SR4, or   and R1, R2, R3, R4 and R5 are independently selected from hydrogen, hydrocarbyl, and substituted hydrocarbyl.
Patent CA-2016451-C (CA)
Title: Apparatus and method for computer-aided decision making
Inventor: IRRGANG MICHAEL E
IPC: G06N5/04
Filed: 1990-05-10
Granted: 2001-10-16
Abstract: An apparatus and method for assisting persons in making decisions, using a computer programmed with artificial intelligence techniques. Real world objects and events pertaining to a particular domain are represented in a knowledge base (50). Best choices for solving problems are made according to the application of rules, which may be applied absolutely, comparatively, by weight, or ordered, according to methods selected by the user. the invention also permits the user to selected by the user. The invention also permits the user to select from among various decision making strategies (66) and permits the user to observe the effects (62) of choices in hypothetical scenarios.
Patent CA-2019704-C (CA)
Title: N,n-disubstituted phthalamic acids and their ammonium salts, and their uses thereof as surfactants, emulsifiers, and conditioning agents in shampoos
Inventor: MOHRING WILLIAM R
IPC: A23L29/10
Filed: 1990-06-28
Granted: 2000-11-14
Abstract: The invention encompasses formulated conditioning shampoos, surfactant solutions and emulsifier solutions comprising effective amounts of salts of the following general formula (see formula I) wherein R1, R2, R3, and R4 are the same or different and represent straight or branched chain alkyl groups having 10 to 40 carbon atoms, or aryl straight or branched chain alkyl groups having 10 to 40 carbon atoms.      The invention also encompasses formulated conditioning shampoos, surfactant solutions, and emulsifier solutions comprising effective amounts of mixtures of a salt of formula I and an acid of formula II (see fig II) wherein R1 and R2 are the same or different and represent straight or branched chain alkyl groups having 10 to 40 carbon atoms, or aryl straight or branched chain alkyl groups having 10 to 40 carbon atoms.
Patent CA-2026119-C (CA)
Title: Tubular reinforcement element and a method of making same
Inventor: SPINNER SAMUEL
IPC: B21D35/00
Filed: 1990-09-25
Granted: 1994-10-18
Abstract: A tubular reinforcement element between two hollow tubular members includes an internal lug located internally of the open end of the one hollow tubular member.  The internal lug includes a slotted side wall of the same configuration as, and bonded to the inner face of, the open end of one hollow tubular member, and a concave end wall integrally formed with the side wall and extending across the open end of the one hollow tubular member. The end wall of the internal lug has a concave surface complementary and bonded to the curved external surface of the second tubular member.
Patent CA-2031979-C (CA)
Title: Facsimile device enabling highly efficient data transmission
Inventor: KATSURADA MORIHIRO
IPC: G06V30/10
Filed: 1990-12-11
Granted: 1995-10-03
Abstract: Disclosed  is  a  facsimile  device  enabling  high-efficiency data transmission independently of the direction in which an original is drawn into the facsimile device.   The facsimile device includes a scanner for reading the original, an image memory for storing a read image signal, a circuit for detecting the direction of text lines of a read pixel signal, a circuit for determining whether or not the text line direction is close to a longitudinal direction or a lateral direction of arrangement of memory cells in the image memory, a circuit for executing an operation for rotating the image signal by a predetermined angle when a determination is made that the text line direction is closer to the longitudinal direction,  a compression circuit for reading the rotated image signal in the lateral direction of the arrangement of the memory cells, to compress the read image signal, and a transmission circuit for transmitting the compressed signal onto lines.
Patent CA-2032030-C (CA)
Title: Heat exchanger and method of assembly thereof
Inventor: RAWSON KEN
IPC: B23K1/08
Filed: 1990-12-12
Granted: 1997-09-30
Abstract: A method of affixing a plurality of tubes into a plurality of corresponding openings in the header wall of a heat exchanger in which the wall has an inner, liquid-facing side and an outer, air-facing side.   Ends of the tubes are welded to corresponding collar openings in the header wall, such that the tubes extend toward the air-facing side of the wall,  to form a plurality of welded tube-to-header joints.   Flux is applied by spraying or the like to the air-facing side of the tube-to-header joints.   Thereafter, a lead/tin or other molten solder is applied to the liquid-facing side of the tube-to-header joint by dipping or wave solder techniques and flowed into any voids in the welded joints to substantially seal the joints against leakage of liquid. Only those joints having potential liquid leaking voids receive the solder; sound, liquid-tight welded joints are not solder sealed.
Patent CA-2037489-C (CA)
Title: Mig welding torch reconditioning apparatus
Inventor: LEE JOHN RANDY
IPC: B23K9/16
Filed: 1991-03-04
Granted: 1998-06-30
Abstract: A MIG welding torch reconditioning apparatus comprises a chuck adapted to receive such a torch in releasably clamped relation between ones of a plurality of selectively moveable cooperative jaws of respective clamps.  The jaws are arranged in radially spaced relation around a central axis defining a longitudinal path of insertion for the torch.  The clamps is movable to translationally reposition the jaws between: a clamping position in which said jaws are clampingly extended into interfering relation in said path; and, a retracted position wherein said jaws are positioned out of clamping relation, and clear of said path.   The apparatus further comprises torch reconditioning tooling arranged in axial register along the common axis.   The  torch  reconditioning tooling  is  selectively movable relative to the chuck along a longitudinal extent of that axis, to be thereby selectively removably positionable within a clamped torches interior.  In this orientation the tooling is operable to remove at least some of any backsplash deposits laid down on torch surfaces during the course of the torches normal use.
Patent CA-2038813-C (CA)
Title: Electronic cribbage board
Inventor: RENAUD JOHN C
IPC: A63F3/00
Filed: 1991-03-21
Granted: 1994-04-19
Abstract: ELECTRONIC CRIBBAGE BOARD               ABSTRACT OF THE DISCLOSURE           An electronic cribbage board is provided which replaces the traditional pegs by LED's which light up to indicate each player's score.  A keyboard for entering each player's score is provided which has a key for every possible score obtainable during the play of a cribbage hand.  The score is entered by depressing a single key. Two LED's for each player are illuminated at the same time to present a present score and a previous score.
Patent CA-2043562-C (CA)
Inventor: BARONE HECTOR D
IPC: A61F2/06
Filed: 1991-05-30
Granted: 1999-09-14
Abstract: An aortic graft, and method and apparatus for repairing an abdominal aortic aneurysm includes a tubular graft which is intraluminally delivered through the aorta and secured to the aorta by the expansion and deformation of a thin-walled tubular member.
Patent CA-2045785-C (CA)
Inventor: LAPOINTE LARRY P
IPC: A47C1/0355
Filed: 1991-06-27
Granted: 1994-03-22
Abstract: ABSTRACT OF THE DISCLOSURE     The chair of the present invention includes a power-assisted linear actuation drive mechanism having a modified nut or "cam guide" which is linearly moveable upon rotation of the power screw for selectively actuating the lift and tilt linkage mechanism for causing forward lifting and tilting movement of the chair when the motor is operated in a first direction.  Rotation of the screw shaft in a second opposite direction acts to lower the chair to the normal seating position.  Continued rotation in the second direction causes sequential operative extension of the leg rest assembly followed by angular reclining movement of the chair.  This sequential operation of the leg rest assembly and the reclining linkage are independent and may be easily disabled to selectively eliminate either of the features.
Patent CA-2046979-C (CA)
Title: Automatic attachment of pre-closed elastic waist bands
Inventor: ADAMSKI MAXIMILIAN JR
IPC: D05B33/00
Filed: 1991-07-12
Granted: 1996-07-23
Abstract: An apparatus for and method of attaching an elastic band to the body of a garment is provided.  The workpieces are monitored and aligned during the attachment process by sensors and guide mechanisms, electrically coupled to a controlling means that facilitates the activities, while a tensioning mechanism maintains the workpieces in a desired configuration.  The use of the apparatus and method results in an efficient and automatic process of attachment that eliminates the need for an operator to manually align and guide the workpieces through the sewing instrumentality.
Patent CA-2056158-C (CA)
Inventor: HOLMES-FARLEY STEPHEN R
IPC: C09J4/06
Filed: 1991-11-25
Granted: 1998-09-22
Abstract: A one-component adhesive for metal surfaces such as iron, zinc, copper, cadmium and their alloys that will cure upon contact with the metal surface. The adhesive composition includes an olefinically unsaturated monomer; an acidic compound; a sulfonyl-containing compound; and a compound containing a transition metal. The adhesive composition may also optionally contain other additional polymeric materials and will cure rapidly upon contact with a metal surface to form an adhesive bond between metal surfaces. The adhesive composition avoids the use of halide-containing compounds which can be undesirable in certain applications.
Patent CA-2060295-C (CA)
Title: Herbicidal emulsifiable concentrate compositions of imidazolinone herbicides
Inventor: ONG CHUNGJIAN JERRY
IPC: A01N43/50
Filed: 1992-01-29
Granted: 2003-07-08
Abstract: The present invention provides herbicidal emulsi-fiable concentrate compositions of imidazolinone herbicides and dinitroaniline herbicides.
Patent CA-2062959-C (CA)
Inventor: EVANS DIANE M
IPC: G01N33/53
Filed: 1990-07-16
Granted: 1999-06-29
Abstract: On prévoit des hybridomes afin de produire des anticorps monoclonaux dressés contre les résidus de lysine acétylée de la somatotropine bovine recombinante. Les anticorps sont spécifiques à la présence d'au moins une seule lysine acétylée dans une protéine et peuvent différencier entre la lysine alpha-acétyle et la lysine epsilon-acétyle en tant qu'aminoacides libres.
Patent CA-2069870-C (CA)
Title: Treatment of atopic disorders with gamma-interferon
Inventor: LEUNG DONALD Y M
IPC: A61K38/21
Filed: 1990-11-29
Granted: 2000-08-22
Abstract: A method of treating patients having chronic, severe allergic disorders, such as atopic dermatitis or steroid-dependent asthma, with gamma interferon is disclosed. The method involves treating patients afflicted with atopic dermatitis or steroid-dependent asthma with effective dosages of gamma interferon, which reduces the clinical severity of their disease.
Patent CA-2076926-C (CA)
Title: Liquid container, recording head using same and recording apparatus using same
Inventor: NAKAJIMA KAZUHIRO
IPC: B41J2/175
Filed: 1992-08-26
Granted: 1997-04-29
Abstract: A liquid container includes a plurality of chambers; a liquid supply port provided in one of the chambers; an air vent provided in another one of the chambers; and a continuous liquid supply material, wherein adjacent ones of the chambers are in fluid communication with each other only through the liquid supply material.
Patent CA-2077367-C (CA)
Inventor: THEURER JOSEF
IPC: E01B27/00
Filed: 1992-09-02
Granted: 2003-03-11
Abstract: A machine arrangement (1) for picking-up, storing and distributing the ballast of a track (2) consists of a ballast pick-up device (24) composed of rotatable brushes, a ballast transporting device (25) coordinated therewith and projecting over one end of a machine frame (23), a ballast store (8) which has a conveyor belt (10) extending in the longitudinal direction of the machine or of the track, and a plough (16, 17) designed so as to be vertically adjustable. The ballast plough (4) and the ballast store (8) are disposed on a first machine frame (7), in the working direction of the machine arrangement (1), the ballast store (8) having outlet openings (11) located before the ballast plough (16, 17) and the conveyor belt (10) being located in the base region of the ballast store (8). The ballast pick-up device (24) is provided together with the ballast transporting device (25) disposed before it on a second machine frame (23) disposed thereafter. The machine arrangement (1) may be expanded by means of a bulk material loading vehicle (38) located between the ballast plough (4) and the ballast picking-up device (24).
Patent CA-2079632-C (CA)
Title: Method for the removal of chromium compounds from aqueous solutions
Inventor: JACKSON JOHN R
IPC: C02F9/00
Filed: 1992-10-01
Granted: 1994-10-18
Abstract: A process for precipitating and removing chromium compounds in which chromium is in the hexavalent state from aqueous liquids, particularly, alkaline earth metal or alkali metal chlorate-rich solutions containing chloride, chlorate, andbichromate produced by the electrolysis of brine. In the process,hydroxylamine, hydroxylamine sulfate, hyroxylamine formate or hydroxylamine hydrochloride is used as a reducing agent to react and co-precipitate at a neutral or acid pH with hexavalent chromium ions present in the aqueous liquid, the reaction and precipitation taking place, generally, at a pH of about 4.0 to about 6.5 and, a temperature of about 50°C to about 100°C. Precipitated oxides and hydroxides of divalent and trivalent chromium can be removed, for instance, by filtration. Reaction time to achieve a level of about 10 parts per million or less of chromium ions in the filtrate varies from less than about 5 hours to less than about 1 hour depending upon selection of reaction temperature and reaction pH. For instance to achieve a level of 2 parts per million or less chromium ion after removal of the precipitate formed during the reaction at a pH of 5.0 - 5.5, a reaction time of 10 minutes at a temperature of 90° - 95° C is required. A reaction time of 30 minutes at a temperature of 70° C or 120 minutes at a temperature of 60° C provides a similar level of chromium ion removal.
Patent CA-2081402-C (CA)
Title: Display of electronic self-test results using gauge dial pointers
Inventor: DANNENBERG ROBERT D
IPC: G01D18/00
Filed: 1992-10-26
Granted: 2003-03-11
Abstract: Results of self-testing of portions of an automotive vehicle's electronic instrument cluster are displayed on the cluster's speedometer and tachometer. A fault in a particular portion is indicated by operating the pointers of both meters in unison by repetitive sweeping from zero to a particular location corresponding to the particular portion containing the fault.      Detection of no faults is indicated by sweeping both pointers in unison from zero to maximum and back. A person can judge the movements of the meters by observing whether the pointers sweep smoothly in unison or in an erratic manner.
Patent CA-2082202-C (CA)
Inventor: FRINGELI WERNER
IPC: D06L4/664
Filed: 1992-11-05
Granted: 2003-07-29
Abstract: Storage-stable formulations of whitening mixtures comprising at least two anionic fluorescent whiteners, which preferably contain at least one sulfonic acid radical; an anionic polysaccharide; dispersants and water, and if appropriate auxiliaries.  These formulations are particularly suitable for the preparation of liquid washing agents.
Patent CA-2085733-C (CA)
Title: Polycyclic guanine derivatives
Inventor: NEUSTADT BERNARD R
IPC: A61P25/02
Filed: 1991-06-20
Granted: 1996-03-05
Abstract: Novel polycyclic guanine derivatives of formula (I) and (I'), wherein J is oxygen or sulfur, R1 is hydrogen, alkyl or alkyl substituted with aryl or hydroxy; R2 is hydrogen, aryl, heteroaryl, cycloalkyl, alkyl or alkyl substituted with aryl, heteroaryl, hydroxy, alkoxy, amino, monoalkylamino or dialkylamino, or -(CH2)mTCOR20 wherein m is an integer from 1 to 6, T is oxygen or -NH- and R20 is hydrogen, aryl, heteroaryl, alkyl or alkyl substituted with aryl or heteroaryl; R3 is hydrogen, ha-lo, trifluoromethyl, alkoxy, alkylthio, alkyl, cycloalkyl, aryl, aminosulfonyl, amino, monoalkylamino, dialkylamino, hydrox-yalkylamino, aminoalkylamino, carboxy, alkoxycarbonyl or aminocarbonyl or alkyl substituted with aryl, hydroxy, alkoxy, amino, monoalkylamino or dialkylamino; Ra, Rb, Rc and Rd independently represent hydrogen, alkyl, cycloalkyl or aryl; or (Ra and Rb) or (Rc and Rd) or (Rb and Rc) can complete a saturated ring of 5- to 7- carbon atoms, or (Ra and Rb) taken to-gether and (Rb and Rc) taken together, each complete a saturated ring of 5- to 7- carbon atoms, wherein each ring optionally can contain a sulfur or oxygen atom and whose carbon atoms may be optionally substituted with one or more of the follow-ing: alkenyl, alkynyl, hydroxy, carboxy, alkoxycarbonyl, alkyl or alkyl substituted with hydroxy, carboxy or alkoxycarbo-nyl; or such saturated ring can have two adjacent carbon atoms which are shared with an adjoining aryl ring; and n is zero or one. The compounds of formulas (I) and (I') are useful as antihypertensive, muscle relaxant and bronchodilating agents.
Patent CA-2085964-C (CA)
Title: Ball triplan constant velocity joint centering spring
Inventor: SCHNEIDER DEAN J
IPC: F16D3/20
Filed: 1992-12-21
Granted: 2003-09-23
Abstract: A triplan constant velocity joint has an outer member, an inner member, shoes, rolling elements between the shoes and the outer member, and a positioning spring to position the rolling elements in relation to the inner member. The spring has a body with first and second arms for retaining the rolling elements with respect to the inner member. The spring also includes a retaining mechanism which both secures the spring to the inner member and provides a restoring force to position the rolling elements in relation to the inner member.
Patent CA-2087607-C (CA)
Title: Bioreactor
Inventor: VELLINGA SJOERD HUBERTUS JOZEF
IPC: B01J4/00
Filed: 1991-07-05
Granted: 1999-09-14
Abstract: A bioreactor comprises a reactor vessel (1) having an inlet system for influent or a mixture of influent and recycled material and a reaction chamber located above this system. In order to produce an excellent distribution of the influent (which may be mixed with recycled material) without there being a risk of blockage and without excessive wear problems arising, the outflow openings of the influent inlet system (12) are at least partially tangentially oriented and the influent inlet system is located in a chamber (2) which is separated from the reaction chamber by a partition which has at least one radial slit (13), formed by two radial edge strips (4a; 4b) overlapping one another some vertical distance apart, which radial slit forms the connection between the said influent inlet chamber and the reaction chamber.