baber/WOPTO huggingface dataset:
Patent CA-2031870-C (CA)
Inventor: TOMITA NOBUO
IPC: H04B10/071
Filed: 1990-12-10
Granted: 1995-08-08
Abstract: The present invention discloses a fault distinguishing device for establishing whether fault exists in an optical fiber cable and in another optical system.  The disclosed device is intermediate between the optical fiber cable and the another optical system and optically coupled with the optical fiber cable and the another optical system.  The disclosed device is composed of at least one intrinsic optical fiber and at least one optical filter.  The optical filter is internal to a corresponding intrinsic optical fiber, and forms an angle of between 0 and 4.7 degrees inclusive with respect to a plane perpendicular to the longitudinal axis of the intrinsic optical fiber, such that the optical fiber is cable of reflecting a first light component and of transmitting a second light component.  The first light component and the second light component differ from one another in terms of wavelength.
Patent CA-2036720-C (CA)
Title: Process for obtaining sec-butyl acrylate
Inventor: PEREZ PASCUAL MIGUEL A
IPC: B01J31/10
Filed: 1991-02-20
Granted: 1997-03-04
Abstract: Process for obtaining sec-butyl acrylate comprises reacting, both continuously and discontinuously, acrylic acid and 1-butene in the presence of an ionic exchange resin that contains sulfonic acid groups, carrying out the reaction at a temperature between 50 and 120°C, at a pressure between 10 and 30 kg/cm2, for a reaction or contact time between 0.5 and 4 hours and using an olefin/acrylic acid molar ratio between 0.3 and 10.  The sec-butyl acrylate obtained is useful in polymerization processes yielding very hard polymers with a high thermal resistance and high resistance to hydrolysis.
Patent CA-2037140-C (CA)
Title: Multidirection multiplex communication system
Inventor: SHINMYO SABURO
IPC: H04J3/00
Filed: 1991-02-26
Granted: 1995-08-22
Abstract: A TDM/TDMA (Time Division Multiplex/Time Division Multiple Access) multidirection multiplex communication system of the type using a demand assignment protocol. The system has a multiframe arrangement in which each unit frame is constituted by a frame synchronization signal, a connection control signal for setting up radio channels, N conversation channels, and a single additional bit transmission channel shared by the N conversation channels. When N unit frames are combined in a multiframe format by a frame synchronization signal, N additional bit transmission channels are provided in total.
Patent CA-2037801-C (CA)
Inventor: ORLOWSKI THOMAS E
IPC: B29C70/52
Filed: 1991-03-08
Granted: 2001-04-24
Abstract: An electrical component for making electrical contact with another component comprising a pultruded composite member having a plurality of small diameter conductive fibers in a polymer matrix said plurality of fibers being oriented in said matrix in a direction substantially parallel to the axial direction of said member and being continuous from one end of said member to the other to provide a plurality of potential electrical contacts at each end of said member at least one end of said member having a fibrillated brush-like structure of said plurality of fibers providing a densely distributed filament contact wherein the terminating ends of the fibers in the brush-like structure defines an eleetrically contacting surface. In a preferred embodiment the brush-like member is a laser fibrillated structure.
Patent CA-2038159-C (CA)
Title: Location registration system enabling a radio telephone set to automatically start location registration after travel for use in a mobile radio telephone network
Inventor: NAGASHIMA NORIAKI
IPC: H04W60/04
Filed: 1991-03-13
Granted: 1995-05-30
Abstract: For starting a registration operation of location information of movable radio telephone sets into a subscriber's file in a line connection unit connected to radio connection devices in a mobile telephone network system after travel of each of the radio telephone sets, each radio telephone set is provided with a unit for measuring a travel amount.  The radio telephone set produces a request signal for the location information registration when the travel amount measured exceeds a first threshold value.          Alternatively, the radio telephone set reset the measuring unit when the travel amount measured exceeds a first threshold value and thereafter produces a request signal for the location information registration when the travel amount measured does not exceed a second threshold value smaller that the first threshold value.          Radio connection devices announce location information signals and each radio telephone set holds, as a held location information, the location information registered in the subscriber's file.  When the telephone set receives one of the location information signals which has location information different from the held location information, the radio telephone set produces another request for registration of the different location information.
Patent CA-2047311-C (CA)
Title: Operating mechanism for a blind or shielding device
Inventor: OSKAM HERMAN
IPC: E06B9/36
Filed: 1991-07-17
Granted: 1995-06-13
Abstract: An operating mechanism for a blind or shielding device having angularly adjustable and retractable slats 12, said mechanism comprising a first driven element 27 for pivotally adjusting the angular orientation of the slats and a second driven element 30 for transversely moving the slats towards and away from the retracted position, a common actuating member 22 for driving said first and second driven elements, a coupling device 24 directly coupling said first driven element to said common actuating member, a final engagement and lost motion mechanism 28,30 for releasibly engaging said common actuating member to said second driven element and allowing entraining of said second driven element after a predetermined number of revolutions of said actuating member neither of two different rotational senses, the final engagement associated with said lost motion mechanism in each rotational sense inducing a reactive force in an axial direction, said reactive force assisting in declutching of said coupling device.
Patent CA-2050579-C (CA)
Title: Apparatus for coagulating treatment
Inventor: TOTOKI TOSHIO
IPC: B01D21/30
Filed: 1990-02-20
Granted: 1999-10-05
Abstract: An apparatus for coagulating treatment which is capable of controlling the amount of addition of a coagulant to the optimum level thereby minimizing the water content of the dehydrated cake comprises coagulant adding devices (6), (7), and (8) for causing the coagulant to be added in a variable amount to a liquid subjected to the coagulating treatment, a heat transfer detecting meter (12) disposed so as to contact the liquid to which the coagulant is to be added, the liquid to which the coagulant has been added, or the filtrate from the liquid to which the coagulant has been added and adapted to detect a feeble change in the physical property of the liquid in the form of a change in voltage, and a control device (16) for controlling the amount of addition of the coagulant in the coagulant adding device (8) so that the value of detection of the heat transfer detecting meter (12) is minimized or kept within a desired range.
Patent CA-2058835-C (CA)
Title: Stable pharmaceutical composition and method for its production
Inventor: YANO YOSHIAKI
IPC: A61K9/127
Filed: 1992-01-07
Granted: 2002-03-19
Abstract: The present invention is directed to a stable pharmaceutical composition wherein the absorbability of a lipophilic drug which is insoluble or practically insoluble in water or another drug such as a bioactive peptide in oral administration has been improved to such extent that a high level of blood concentration can be retained, and to a method for producing such a stable pharmaceutical composition. The pharmaceutical composition of the present invention offers improvements in the absorbability, for example, a high level of blood concentration can be retained for a long time in oral administration because it is highly resistant to lipase. Also, the pharmaceutical composition is highly safe because the emulsifier used is derived from mammalian milk.
Patent CA-2060880-C (CA)
Title: Hydraulically driven crawler vehicle
Inventor: AKAHANE FUMIHIRO
IPC: B62D11/18
Filed: 1992-02-07
Granted: 1995-09-05
Abstract: This invention provides a hydraulically driven crawler vehicle in which pilot pressure for controlling the discharge of right and left variable displacement pumps is produced in response to the engine speed by throttle valves disposed in the discharge oil circuit of a fixed displacement pump, variable throttle valve in a branch circuit each installed in a pilot circuit for controlling the right and left crawlers is operated by a cam rotated by the steering wheel, and when the steering wheel is turned exceeding a certain angle, a direction change-over solenoid valve of variable displacement pump at the steering wheel turning side is energized to the reverse side so that the right and left crawlers are driven in the reverse direction to each other.  Also, this invention provides a hydraulically driven crawler vehicle in which the oil pressure to a swash plate angle control cylinder which changes the angle of swash plate in the variable displacement pump producing oil pressure to the motor for traveling is controlled by feeding back the actual angle of swash plate so that the angle of swash plate corresponds to the command pressure based on the engine speed.
Patent CA-2064152-C (CA)
Title: Limited slack railcar connector
Inventor: RADWILL ROBERT P
IPC: B61G9/24
Filed: 1992-03-26
Granted: 1996-08-13
Abstract: A railcar connector assembly includes an elastic pad held in a cage that is interposed between parts of the assembly to provide limited slack of an amount approximately equal to a dimension that the pad extends from the cage.
Patent CA-2069126-C (CA)
Title: Process for fluorinating halogenated hydrocarbon
Inventor: SHIBANUMA TAKASHI
IPC: C07C17/25
Filed: 1992-05-21
Granted: 2002-02-19
Abstract: The present invention is directed to a halogenated hydrocarbon which is effectively fluorinated by reacting the halogenated hydrocarbon with hydrogen fluoride in the presence of a fluorination catalyst. The catalyst comprises a partially fluorinated chromium oxide containing at least one metal selected from the group consisting of ruthenium and platinum.
Patent CA-2070312-C (CA)
Title: Apparatus and method for sprue removal and grinding of railway wheels
Inventor: CHRISTIE DALE C
IPC: B22D31/00
Filed: 1992-06-03
Granted: 1996-08-27
Abstract: A method and apparatus for grinding cast steel railroad wheels is provided.  The apparatus comprises a railroad wheel support assembly that includes a roller assembly to receive and grasp the railroad wheel and rotate the railroad wheel about its center axis.  A grinding assembly is also provided that includes a motor operatively connected to a grinding wheel.  The motor and grinding wheel are mounted to a support assembly.  The railroad wheel support assembly oscillates about an axle assembly during grinding.  The grinding assembly is designed to advance the grinding wheel laterally into the railroad wheel during grinding.  The lateral advancing of the grinding wheel and oscillating of the railroad wheel are controlled to achieve a finish grinding of the selected surface of the railroad wheel to a preselected contour.
Patent CA-2072894-C (CA)
Title: Off-line web finishing system
Inventor: FOKOS ROBERT
IPC: B65H23/04
Filed: 1991-01-15
Granted: 1997-01-21
Abstract: An off-line web finishing system performs plural functions on a pre-printed and rewound web at a series of pieces of equipment arranged in a line. Tension in the web is set at a variable infeed at a constant value that is sufficient to facilitate handling of the web.  A common web-transport system drives all draw rolls in the line in unison, at the same speed, and without slippage between the web and the rolls.  In the preferred form, a second drive line rotates in unison the function cylinders of pieces of equipment that are registration sensitive.  The second line is driven by a main line shaft of the web transport system via a variable transmission that is adjusted in response to at least one optical scanner that senses misregistrations between the printed pattern on the web and the function cylinders.  The registration sensitive function cylinders operate on the web only intermittently.  Each function cylinder preferably has an associated scanner that operates a variable transmission between the second line and the associated function cylinder to further control the registration of the equipment to the web.
Patent CA-2074183-C (CA)
Inventor: MELBER GEORGE E
IPC: B01J13/22
Filed: 1991-02-21
Granted: 1996-12-10
Abstract: Microsphere (10) wet cake, is mixed with a surface barrier coating (14) effective to prevent agglomeration and surface bonding of the microspheres. Water is removed by drying at high shear with continuous mixing. In a subsequent step, by controll-ing the application of heat to balance temperature and coupling this with low shear mixing, blowing agent (12) will produce con-trolled expansion of the microspheres. The surface barrier coating (14) in the present invention is any one of a wide diversity of materials which meet the requirements of the intended function, i.e., to prevent the agglomeration of the microspheres during the process. Suitable materials (14) include by way of example, dry inorganic pigments or filler materials, and the like, and related inorganic materials.
Patent CA-2074235-C (CA)
Title: Hardenable composition, aqueous gel and applications thereof
Inventor: ITOH HIROSHI
IPC: C08F220/54
Filed: 1992-07-17
Granted: 2000-02-08
Abstract: The present invention provides an aqueous gel comprising a polymer of (meth)acrylamide or particular (meth)acrylamide derivative(s), particulate metal oxide(s) and an aqueous medium, a process for producing said gel, and products utilizing said gel.      This aqueous gel can be produced so as to have transparency, has fire resistance and can prevent the spreading of flames, and is highly elastic. The aqueous gel, when produced as a transparent gel, becomes cloudy when heated or cooled and is useful for the shielding of heat rays or cold radiation.
Patent CA-2080243-C (CA)
Inventor: KATO EIICHI
IPC: B32B27/10
Filed: 1992-04-03
Granted: 2000-09-26
Abstract: A packaging laminate material comprising a paper substrate and a polyester resin layer provided on at least the inmost surface side, wherein the polyester resin comprises specific dicarboxylic acid base units and specific dihydroxy compound base units and if necessary constituent units derived from a polycarboxylic acid of 3 or more valences and constituent units derived from polyglycol of 3 or more valences, and has a high heat-sealing strength.  The packaging laminate material has small decrease in the heat-sealing strength even after the laminate material is subjected to a hot water treatment or a hot hydrogen oxide treatment, and is excellent in scent (odor) retention properties.
Patent CA-2083913-C (CA)
Inventor: CATT JOHN D
IPC: C07D295/096
Filed: 1992-11-26
Granted: 2000-11-07
Abstract: Novel piperazinyl- and piperidinyl-cyclohexanols of the formula: (see formula I) and pharmaceutically acceptable salts thereof, wherein R1 and R2 are independently selected from H, halogen, CF3 or C1-4 alkoxy groups except that R1 and R2 cannot both be H simultaneously, and R1 and R2, when on adjacent carbon atoms, can be taken together to form a (see formula II) bridge with n being an integer from 1 to 3; R3 is H or C1-4 alkyl; R4 and R5 are each independently selected from H, C1-4 alkyl or phenyl; Y is N or CH; and Ar is a heteroaryl, an unsubstituted phenyl ring, or a substituted phenyl ring of the formula: (see formula III) wherein X and X' may be halogen, nitro, amino, carboxamido, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 alkylthio or X and X' can be taken together to form a (see formula IV) bridge (n=1-3) are useful as anxiolytic agents and have other psycho-tropic properties.
Patent CA-2087043-C (CA)
Title: Web former for a paper machine
Inventor: ODELL MICHAEL
IPC: D21F1/48
Filed: 1993-01-11
Granted: 1998-08-04
Abstract: The invention concerns a twin-wire web former for a paper machine, whose wires (10,20) form a twin-wire forming zone (V1-V2) between them, on which zone water is drained out of the web (W) through both of said wires (10,20). After the twin-wire zone the web (W) is separated from the covering wire (20) and is transferred on the carrying wire (10) to its pick-up point. In hybrid formers (Fig. 1), after the single-wire forming zone (10a), and in gap formers (Fig. 2), after the curved forming zone (a0) placed directly after the forming gap (G), there is a forming shoe (30;30A) provided with a ribbed deck (31) and fitted inside one of the wire loops (10/20). This forming shoe (30;30A) is followed by dewatering and web forming units which include forming ribs and are placed inside both of the wire loops (10,20), of which units at least one is loaded by means of a pressure-hose arrangement.
Patent CA-2091807-C (CA)
Inventor: FARMERIE JOSEPH G
IPC: B23D51/16
Filed: 1993-03-17
Granted: 2003-08-12
Abstract: A drive gear is mounted for rotation in a plane parallel with the axis of rotation of the output member of the motor. The gear includes an annular series of beveled gear teeth in meshing engagement with beveled pinion teeth on the end of the motor output member. The drive gear includes a crank pin roller and an annular cam surface eccentric to the axis of rotation of the gear. The roller is received within a rectilinear slot in the plunger assembly thereby defining a scotch-yoke drive for reciprocating the plunger assembly. The plunger assembly includes planar cam follower formations engaged by the annular cam surface to provide an oscillating component of movement to the plunger assembly. The crank pin mounts a disk in eccentric relationship to the drive gear; this disk supports another crank pin and roller. A counterweight having a mass substantially the same as the plunger assembly has a rectilinear slot receiving the last-mentioned roller thereby constituting a second scotch-yoke drive for reciprocating the counterweight. The counterweight includes planar cam follower surfaces engaged with peripheral portions of the disk thereby imparting an oscillatory component to movement of the counterweight.
Patent CA-2092150-C (CA)
Title: Mine roof support system
Inventor: LONG LAWRENCE E
IPC: E21D21/00
Filed: 1993-03-22
Granted: 1996-09-10
Abstract: A mine roof support system is disclosed having a connector.  The connector has a first hole through which one end of a first roof supporting rod is inserted and a second hole through which one end of a second roof supporting rod is inserted.  The first and second roof supporting rods are fastened to the connector so as to support the roof of the mine.  In order to increase the bending arcs of the connector along which the first and second roof supporting rods bend without increasing the weight of the connector, the holes of the connector may be bevelled to form elliptical openings in the connector and the connector may be canted.
Patent CA-2095904-C (CA)
Inventor: RIPLEY BRIAN
IPC: A47L15/42
Filed: 1993-05-10
Granted: 1995-10-10
Abstract: The present invention relates to a snap fit end cap for a control console  positioned  within  a  domestic  appliance, particularly a washing or drying machine.  Each of the end caps include mounting pins which extend through and support the control console.   A stop surface  is provided adjacent the mounting pins to limit the penetration of the pins into the control console and to prevent inward movement of the end cap relative to the control console. Resilient fastening devices are also provided by the end caps.   The fastening devices extend through apertures provided by the control console, a shoulder surface of the fastening devices engaging an inner surface of the control console to prevent removal of the fastening device once installed therein as well as to prevent outward movement of the end cap relative to the control console.  The distance between the shoulder surface and the stop surface is generally equal to the thickness of the control console,  trapping the console therebetween and preventing the end cap from moving relatively towards or away from the control console.  The end caps of the present invention eliminate or otherwise greatly reduce the amount of labor and hardware necessary to attach the end caps to the control console of the appliance.
Patent CA-2098698-C (CA)
Title: Microbiological process for preparing mevinolin
Inventor: JEKKEL ANTONIA
IPC: C07D309/30
Filed: 1993-06-17
Granted: 1998-05-19
Abstract: The invention refers to a new a microbial process for preparing .beta.,.delta.-dihydroxy-7-[1,2,6,7,8,8a-hexahydro-2.6-dimethyl-8-(2-methyl-butyryloxy)-naphthalen-1-yl]-heptanoic acid .delta.-lactone of formula (I) and .beta.,.delta.-dihydroxy-7-[1,2,6,7,8,8a-hexahydro-2.6-dimethyl-8-(2-methylbutyryloxy)-naphtalen-1-yl]-heptanoic acid of formula (II),   (I)   (II) by the aerobic fermentation of the submerged culture of an imperfect fungus strain biosynthesizing the above compounds, in a nutrient medium containing utilizable carbon and nitrogen sources as well as mineral salts, and by isolating the product of formula (I), which comprises cultivating a strain of the new Aspergillus obsecurus fungus species producing the above compound(s) of formulas (I) and/or (II), in a temperature range of 25 to 30°C and, if desired, separating the product(s) formed from the fermentation broth, then isolating it in the lactone form of formula (I) and, if desired, purifying the same.
Patent CA-2101687-C (CA)
Inventor: REMPEL GARRY LLEWELLYN
IPC: C08F236/12
Filed: 1993-07-30
Granted: 2004-11-09
Abstract: An improved process is provided for the catalytic hydrogenation of nitrite rubber using a ruthenium catalyst wherein the improvement is that the nitrite rubber is provided as an aqueous emulsion and a solvent and a selected organic additive are present during the hydrogenation, whereby the molecular weight increase in the hydrogenation process is minimized and controlled.
Patent CA-2101996-C (CA)
Inventor: BLAIS FRANCOIS
IPC: G01S17/89
Filed: 1993-08-05
Granted: 2000-02-29
Abstract: To provide a system for the optical ranging of a selected point on a target surface irradiated with light while avoiding false signals from other sources in a cluttered. environment, the system employs a combination of the triangulation ranging technique with the Biris ranging technique, i.e. imaging onto a position sensitive photodetector through an apertured mask.      This combination enables the respective equations for range that apply to the respective techniques to be combined to generate an equation that is true only for target surface points that are directly on the light beam, hence enabling rejection of false signals on the basis of those that fail to satisfy this latter equation. The system has the advantage of flexibility, in that it permits the light beam to be directed onto the target surface from a wide range of locations relative to the detector. In addition, three dimensional data on the target surface can be obtained by using at least one further light beam inclined to the first beam and a mask with more than two apertures. For many practical applications this latter arrangement avoids a need to scan the target surface relative to the detector.