baber/WOPTO huggingface dataset:
Patent CA-2027768-C (CA)
Title: Thermosetting mixtures utilizing araliphatic sulfonium salts
Inventor: MUNK KURT
IPC: C08G18/22
Filed: 1990-10-16
Granted: 2001-07-03
Abstract: Thermosetting mixtures containing (a) an epoxy resin having on average more than one 1,2-epoxide group in the molecule, (b) a di- or polyisocyanate compound and (c) a sulfonium salt of the formulae I to IV      in which A is C1-C12alkyl, C3-C8cycloalkyl, C4-C10cycloalkylalkyl or phenyl which is unsubstituted or substituted by one or more substituents from the group comprising C1-C8alkyl, C1-C4alkoxy, halogen, nitro, phenyl, phenoxy, alkoxycarbonyl having 1-4 C atoms in the alkoxy radical or acyl having 1-12 C atoms, Ar, Ar1 and Ar2 independently of one another are each phenyl which is unsubstituted or substituted by one or more substituents from the group comprising C1-C8alkyl, C1-C4alkoxy, halogen, nitro, phenyl, phenoxy, alkoxycarbonyl having 1-4 C atoms in the alkoxy radical and acyl having 1-12 C atoms, or are naphthyl which is unsubstituted or substituted by one or more substituents from the group comprising C1-C8alkyl, C1-8alkoxy, halogen, nitro, phenyl, phenoxy, alkoxycarbonyl having 1-4 C atoms in the alkoxy radical and aryl having 1-12 C  atoms, arylene in each case is phenylene which is unsubstituted or substituted by one or more substituents from the group comprising C1-C8alkyl, C1-C4alkoxy, halogen, nitro, phenyl, phenoxy, alkoxycarbonyl having 1-4 C atoms in the alkoxy radical and acyl having 1-12 C atoms, or is naphthylene which is unsubstituted or substituted by one or more substituents from the group comprising C1-C8alkyl, C1-C4alkoxy, halogen, nitro, phenyl, phenoxy, alkoxycarbonyl having 1-4 C atoms in the alkoxy radical and acyl having 1-12 C  atoms, and Q~ is SbF6~, AsF6~ or SbF5OH~, give moulded materials of high crosslinking density and thus high heat resistance on thermal curing.
Patent CA-2031506-C (CA)
Title: Protection system for a memory cartridge
Inventor: OKADA SATORU
IPC: G06F21/62
Filed: 1990-04-19
Granted: 1995-01-10
Abstract: A memory cartridge which may be loaded in an attachable/detachable manner to a data processing apparatus, such as a hand-held electronic game machine, includes logic control circuitry, a program read only memory (ROM), a bank changing circuit, and external random access memory (RAM). The external RAM is backed-up by a battery. First key data and second key data are prestored in the program ROM. After the data processing power source is turned-on and the power source voltagereaches a predetermined value, a reset signal is provided to the memory cartridge. Only when the first key data read from the program ROM and the reset signal are both detected is the external RAM accessible by the data processing apparatus. When second key data are detected, the data processing apparatus is inhibited from accessing the external RAM.
Patent CA-2031550-C (CA)
Title: Multi-type air heating apparatus utilizing phase variation of heating medium
Inventor: SAITO KAZUO
IPC: G05D23/19
Filed: 1990-12-05
Granted: 1994-05-10
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-2032894-C (CA)
Title: Connection for joining precast concrete panels
Inventor: BAUR KENNETH C
IPC: E04B1/04
Filed: 1990-12-20
Granted: 1998-04-14
Abstract: A connection for joining upper and lower precast concrete panels includes a molded plastic tubular body having closed ends and recesses formed in the inside and outside of the body.  The body is cast into the top of the lower panel with a sheet in place closing one end to prevent entry of water and debris into the interior of the body.  When the panels are erected, the sheet is broken open exposing the interior of the body, the body is filled with grout and a structural rod extending down from the upper panel is lowered into the body as the upper panel is placed on the lower panel.  Setting of the grout forms a strong connection between the two panels.
Patent CA-2033196-C (CA)
Inventor: RUDICK ARTHUR G
IPC: F25D17/08
Filed: 1990-06-05
Granted: 1994-09-20
Abstract: A carbonator refrigeration system for use in a conventional refrigerator (10) for dispensing a chilled carbonated liquid such as water or a beverage from the front door (14) of the refrigerator.  The system includes a compressor (44), and evaporator (38), a condenser (42), a carbonator (30) and a valve member (56) wherein the valve member is responsive to conditions detected within the refrigerator for selectively directing a source of cooling fluid to or away from a heat exchange device provided in connection with the carbonator. The carbonator refrigeration system enables cooling of the carbonator for home dispensing use in a time-share manner with the remaining mechanical refrigeration components.
Patent CA-2044252-C (CA)
Inventor: SAITO SHIGEKI
IPC: H04L1/00
Filed: 1990-10-19
Granted: 1999-08-17
Abstract: L'invention se rapporte à un démodulateur numérique, dans lequel une différence de phase est détectée entre un signal de référence et une onde à modulation d'angle, la différence de fréquence est détectée entre l'onde porteuse à modulation d'angle et le signal de référence sur la base de différence de phase, et la phase du signal de référence à établir est commandée sur la base de la différence de phase et la différence de fréquence. La détection de l'onde à modulation d'angle, la détection de la différence de phase et de la différence de fréquence et la commande de phase peuvent ainsi être effectuées au moyen de circuits numériques. Par conséquent, on obtient un excellent taux d'erreurs dans des conditions de bruit et d'évanouissement et il est possible de produire un démodulateur de petite taille et de faible coût nécessitant moins de puissance et aucun réglage.
Patent CA-2044291-C (CA)
Title: Non-yellowing polyurethane adhesives
Inventor: RUMON KENNETH A
IPC: D06M101/16
Filed: 1991-06-11
Granted: 2002-01-01
Abstract: A non-yellowing urethane adhesive based on a polyurethane prepolymer which is prepared by reacting a specific combination of polyhydroxy compounds and an isocyanate compound. The polyhydroxy compounds include a polyalkylene ether diol, a polyalkylene ether triol, and a polyester polyol. The combination of these polyhydroxy compounds and an isocyanate compound results in an adhesive composition which has exceptionally good resistance to high temperature, humidity, and sustained UV radiation, particularly when applied to fabric-like materials.
Patent CA-2044639-C (CA)
Inventor: SUZAKI TSUNETOSHI
IPC: C21D6/02
Filed: 1991-06-14
Granted: 2001-08-28
Abstract: Steel material containing by weight from 0.4 % to 0.8 % carbon, from 0.5 % to 2.5 % silicon, from 0.3 % to 2.0 % manganese, from 0.1 % to 1.5 % chromium, and from 0.1 % to 0.5 % molybdenum is hot-rolled to form a plate. The hot-rolled plate 1 is annealed and cold-rolled at a rolling reduction between 10 % and 80 %. The cold-rolled plate is heated at a temperature above Ac3 critical point for a time sufficient to austenitize carbide and annealed.
Patent CA-2048067-C (CA)
Title: Method for recycling discolored polyolefins
Inventor: PATEL AMBELAL R
IPC: C08J11/06
Filed: 1991-07-29
Granted: 2002-04-02
Abstract: Polyolefins, especially those containing a phenolic antioxidant, are prone to discoloration upon improper processing at elevated temperatures or upon prolonged aging. Such discolored polyolefins can be recycled as essentially non-colored useful polymers by the addition thereto of a hydroxylamine of the formula where T1 and T2 are independently e.g. alkyl, cycloalkyl, benzyl or substituted benzyl.
Patent CA-2049299-C (CA)
Title: Power amplifier
Inventor: JENSEN OLE HEDEVANG
IPC: H03G3/20
Filed: 1991-01-25
Granted: 1996-08-20
Abstract: This invention relates to power amplifiers, such as pulsed power amplifi-ers, for amplifying radio frequency sig-nals and to a method of amplifying radio frequency signals. The power amplifier in accordance with the invention is re-sponsive to a power level control signal so as to amplify radio frequency signals to define any one of a plurality of ampli-fier output power envelopes. The power amplifier comprises means (110, 112, 114) for generating a predetermined time varying signal which represents a prede-termined one of the plurality of amplifier output power envelopes, means (130) for modifying the time varying signal in re-sponse to the power level control signal (124) for definition of a selected output power envelope and control means (108) for controlling the amplifier output pow-er in response to the modified time vary-ing signal to amplify the radio frequency signal according to the selected one of said plurality of output power envelopes. The time varying signal may be a sequence of values stored in memory (114). The modi-fying means may be a clipper which clips the time varying signal at a value that depends on the power level control signal or a multiplier (130) that multiplies the times varying signal by a value that depends on the power level control signal or a subtractor that substracts a value from the time varying signal which depends on the power level control signal.
Patent CA-2050001-C (CA)
Title: Peg board hanger
Inventor: HOEFKES HEINER J
IPC: A47F5/08
Filed: 1991-08-27
Granted: 1995-02-14
Abstract: A peg board hanger comprises two extents diverging at an acute angle which meet at a bight, the two extents being adapted to the approximately parallel to one side of a peg board.  Each extent extends from the bight toward a free end.  At each free end there is an extension curved through approximately 90° in a plane generally perpendicular to the longitudinal axis of the extent. Each extent is curved in the same sense.  The extension is dimensioned to pass through the peg board so that the free end is on the opposite side of the peg board from the extent.  The arrangement is such that when the hanger has the extensions passing through spaced holes in a peg board, the hanger cannot be easily detached by accidental vibrations.
Patent CA-2052208-C (CA)
Inventor: FIELDING RANDY L
IPC: A01C15/10
Filed: 1991-09-25
Granted: 2003-11-25
Abstract: Material dispensing apparatus includes an elongate hopper having a flexible apertured bottom, and an agitator bar mounted for rotation within the hopper having a plurality of circumferentially spaced longitudinally extending rods supported on a rotating stabilizer shaft for material dispensing contact with the apertured bottom. The contact between the longitudinally extending rods and the flexible apertured bottom moves the bottom of the hopper in both an up-and-dawn and side-to-side direction such that the holes in the bottom change shape and material contained within the hopper is both vibrated and pushed through the apertures in the bottom of the hopper onto a product underlying the hopper.  The apparatus is designed to dispense moist pre-sized powder-like materials that tend to agglomerate and adhere together.
Patent CA-2054652-C (CA)
Title: Liquid electrophotographic development system
Inventor: MAIEFSKI ROMAINE R
IPC: G03G15/10
Filed: 1991-10-31
Granted: 1999-05-18
Abstract: A liquid electrophotographic development system has a plurality of removable cartridges (11) mounted on a rotatable support for selective engagement with an electrophotographic member (13) to be developed. Each cartridge (11) has a liquid developer reservoir (29) and a flexible toner concentrate container (26) from which concentrate is supplied to the developer in the reservoir as needed.  A fluted roll (30) pumps developer in a uniform manner from the reservoir (29) to the electrophotographic member (13).  After depletion of the toner concentrate and developer, any developer remaining in the cartridge (11) can be pumped into the flexible container (26) to prevent spillage on disposal of the cartridge.  The cartridge housing has only one opening (12) and minimum-size passages (32,33,34) between the reservoir (29) and the opening (12) to inhibit evaporation of developer liquid.
Patent CA-2055464-C (CA)
Title: Steam shower with reduced condensate drip
Inventor: SAWLEY DAVID
IPC: D21G7/00
Filed: 1990-03-09
Granted: 1998-06-16
Abstract: 2055464 9114045 PCTABS00007 A steam shower to supply steam to a web passing beneath it. There is a main supply header and a preheat chamber enclosing the main supply header. The steam is proportioned between the preheat chamber and the main supply header. There are at least two chambers to receive steam in sequence from the main supply header. In a preferred embodiment the at least two chambers are divided into compartments along the length of the shower. Profiling valves control flow from the main supply header to the first chamber in this preferred embodiment. There are outlets in the last of the at least two chambers through which steam passes to the web.
Patent CA-2058123-C (CA)
Title: Method and apparatus for separation of heavy and light particles from particulate material
Inventor: PARKER MICHAEL PATRICK
IPC: B07B4/02
Filed: 1991-12-19
Granted: 1998-05-05
Abstract: Apparatus for the separation of heavy and light particles from material which includes means for fluidising and agitating the material to cause heavy particles to sink from the acceptable material and comprising a deck adapted to receive material at a reception end and means for vibrating said deck to cause the material to move longitudinally along it to a discharge end, said deck having a number of longitudinally extending troughs separated by peaks and means for providing an upwardly directed air flow in the troughs characterised by means for causing two or more stratified material separation zones in each trough to classify the material two or more times.
Patent CA-2060131-C (CA)
Inventor: MALLORY JOHN
IPC: H01M50/262
Filed: 1992-01-28
Granted: 1995-06-27
Abstract: A battery housing comprising a main body portion, a socket in the main body portion shaped to receive a battery, contacts disposed at one end of the socket adapted to connect with correspondingly disposed electrodes on the battery, and a lid adapted to open and close over the socket, the lid including means for urging the battery electrodes into close connection with the contacts.
Patent CA-2062753-C (CA)
Title: Precipitate test for microorganisms
Inventor: WARD N ROBERT JR
IPC: C12R1/19
Filed: 1990-04-27
Granted: 2005-04-26
Abstract: An improved method for testing for the presence of a particular microorganism and/ or group of microorganisms characterized by a particular enzyme is provided. The method uses a dye-forming and/or fluorogenic-generating substrate throughout a polymer matrix or on the surface of a solid support member that forms a colored precipitate or fluorescent by-product when cleaved by the enzyme. The precipitate is concentrated on the polymer matrix and/or solid support member to create a visible reaction product, whereas the fluorescent by-product will normally be dispersed into the surrounding medium to some extent.      The amount of dye-forming substrate needed is.independent of the sample size. The present invention further comprises an enzyme indicator device comprising a dye-forming and/or fluorogenic-generating substrate throughout a polymer system or on the surface of a solid support member.
Patent CA-2065046-C (CA)
Title: Polymer recycling by selective dissolution
Inventor: NAUMAN E BRUCE
IPC: C08J11/08
Filed: 1990-08-29
Granted: 2001-03-27
Abstract: A method for separating polymers from a physically commingled solid mixture containing a plurality of polymers comprises dissolving a first one of the polymers in a solvent at a first lower temperature to form a first preferably single phase solution and a remaining solid component. The solid component contains additional polymers which are not solvable to the solvent at the first temperature but which may be soluble at higher temperatures. The method includes subsequently heating the solvent to dissolve additional polymer from the solid component to form subsequent solutions. The polymers are then separated from their respective solution either using flash evaporation techniques when more than one polymer has been dissolved at a single temperature, or conventional techniques for extracting a polymer from a solvent in a solution.
Patent CA-2071568-C (CA)
Title: Touchless automotive dryer control circuit
Inventor: MCELROY LUCIAN G
IPC: B60S3/00
Filed: 1992-06-18
Granted: 1996-11-26
Abstract: A drying apparatus (10) for a vehicle washing system maintains blower air bags (18) a predetermined distance from the vehicle without contacting same providing forced air against the vehicle. Ultrasonic sensor (66) are provided on front and back sides of the nozzle (26) for sensing objects within a predetermined distance in combination with control circuitry. The control circuitry controls a motor (42) to retract a cord (36) to in turn raise or move out of the path of the vehicle, the air bag (18) maintaining the predetermined distance from the vehicle. The signals from each of the sensors (66) are each combined to control the motor. The control circuitry includes and oscillator, counter circuit and integrator for producing a distance ramp, and an echo detector for receiving the reflected signal for comparison to the distance ramp to determine the distance of the sensor (66) from the object.
Patent CA-2078674-C (CA)
Title: Shelving/display system
Inventor: BLASS CLIVE JEREMY
IPC: A47F5/00
Filed: 1991-03-19
Granted: 2001-10-02
Abstract: A shelving/display system in which a support rail (1) with an upstanding lip (3) is attached to a wall or vertical surface and one or more hangers (11) with an arm (16) extending therefrom is releasably attachable thereto. Preferable each hanger (11) and arm (16) includes cooperating locating mean, (15, 18) whereby the location of the arm (16) can be adjusted intermediate the ends of the hanger (11).
Patent CA-2081051-C (CA)
Title: Distributed control of telecommunication network for setting up an alternative communication path
Inventor: OGURA TAKAO
IPC: H04L45/50
Filed: 1992-10-21
Granted: 2000-05-02
Abstract: A method for restoring a communication failure in a network comprises the steps of providing a predetermined order for selection to the links included in the network, searching an alternative communication path upon a failure in communication occurring in the network, producing, at a first arbitrary node included in the alternative communication path, a first path setup message containing at least information about the number of the paths to be selected in a first link extending from the first node for setting up the alternative communication path, and an identification code of the path that is to be selected at first in the first link for establishing the alternative communication path, transmitting the first path setup message to a second node also included in the alternative communication path and connected to the first node by a second link, for effecting a setup of connection therein. The second node selects paths with the number specified by the path setup message according to said predetermined order of selection and effects a connection to the paths in the first link according to the order of selection.
Patent CA-2082528-C (CA)
Title: Antitumor substance be-13793c derivatives
Inventor: OKANISHI MASANORI
IPC: C07H19/044
Filed: 1991-02-20
Granted: 2001-03-13
Abstract: This invention relates to 12,13-dihydro-6H-indolo[2,3-a]pyrrolo[3,4-c]carbazole-5,7(6H)-dione derivatives represented by the following general formula, pharmaceutically acceptable salts thereof, a method for preparation thereof and a use thereof:    [wherein R1 denotes a monosaccharide group having 5 to 7 carbon atoms, and the hydroxyl groups of this monosaccharide group can be replaced by the same or different 1 to 3 groups selected from the group consisting of a hydrogen atom, lower alkyl group, lower alkylcarbonyloxy group and lower alkoxy group.]
Patent CA-2086881-C (CA)
Title: Turbo exhaust pipe with exhaust gas and black smoke filters
Inventor: LIN CHING-CHIH
IPC: B01D46/26
Filed: 1993-01-07
Granted: 1996-02-13
Abstract: A turbo exhaust pipe 10 with exhaust gas and black smoke filters comprises mainly a casing 11, a chemical   filter 20,   a   turbine blade 23,  a smoke filter 25,  a  cleaning  element 29,  a  movable  member 31,  and  a  smoke  collector 17, characterized by the disposition of exhaust gas which is discharged to the casing 11 from the engine's exhaust  pipe through  an inlet 15 of the casing so that the exhaust  gas  flow drives    the  turbine  blade 23  to    rotate,    and consequently rotates  the spindle  19  and hence  smoke content in  the exhaust gas is filtered out by the smoke filter 25  and falls into the smoke collector 17 beneath the casing by  gravity, and the remaining exhaust gas is then  filtered by  the chemical filter 20 located at the back   section   of the   casing   to filter out carbon monoxide   and   nitride before   discharging   to the atmosphere to  minimize  air  pollution.
Patent CA-2093410-C (CA)
Title: Improved hydroconversion process employing catalyst with specified pore size distribution
Inventor: DAI PEI-SHING EUGENE
IPC: C10G47/12
Filed: 1993-04-05
Granted: 2002-09-03
Abstract: Heavy oils may be hydrotreated in the presence of a porous alumina support bearing metals of Group VIII and VI-B and optionally phosphorus, the catalyst having a Total Surface Area of 165-230 m2/g, a Total Pore Volume of 0.5-0.8 cc. g, and a Pore Diameter Distribution whereby less than about 5% of the Total Pore Volume is present as primary micropores of diameter less than 80A, and secondary micropores of diameter of ~ 20A of a Pore Mode of 100-135A are present in amount of at least about 65% of the micropore volume having pores with diameter less than 250A, and 22-29% of the Total Pore Volume is present as macropores of diameter >250A.      The process of the instant invention is particularly effective in achieving desired levels of hydrodemetallation, hydrodesulfurization, and hydrocracking of asphaltenes in the fraction of hydrotreated/hydrocracked petroleum resid product having a boiling point greter than 1000°F.