baber/WOPTO huggingface dataset:
Patent CA-1289608-C (CA)
Title: Electrical household appliance for steam cleaning
Inventor: GIANNELLI GIUSEPPE
IPC: A47L11/34
Filed: 1988-10-18
Granted: 1991-09-24
Abstract: AN ELECTRICAL HOUSEHOLD APPLIANCE FOR STEAM CLEANING            An  electrical  household  appliance  for  steam  cleaning comprises, within a monocoque body, a steam generator having a boiler and a steam delivery conduit extending from the boiler and a suction device  arranged  to  draw  up  liquids  and  including  an  electrical aspirator and a  tray  for  collecting  the  matter  drawn up.    This appliance facilitates removal of the condensate and dirt dissolved by the steam from steam cleaned surfaces.
Patent CA-1295381-C (CA)
Title: Methods and apparatus for providing reciprocal impedance conversion
Inventor: CHAMBERS CHARLES W
IPC: H03H11/40
Filed: 1988-11-01
Granted: 1992-02-04
Abstract: ABSTRACT          A reciprocal impedance conversion network is disclosed.  Such conversion network preferably is used in a reciprocal negative impedance repeater for the nonloaded cable facilities of a telephone system.  Two independent voltage sources for generating reciprocal negative impedance are connected between a first port and a second port.  The first port is operably connected to the first voltage source such that a series negative impedance appears at that port.  This port is specifically connected to the switching equipment of the telephone system.  The second port is operably connected to the second voltage source such that a shunt negative impedance appears at that port.  The second port is specifically connected to the nonloaded cable facilities of the telephone system.  The invention further provides a frequency dependent gain circuit which is useful for equalizing the losses along the nonloaded cable facilities.  In addition, the invention provides an unconditional stability test for the reciprocal negative impedance repeater which may be performed substantially without test equipment.
Patent CA-1336029-C (CA)
Inventor: KITABATAKE MICHIHARU
IPC: C08G59/50
Filed: 1988-11-02
Granted: 1995-06-20
Abstract: A coating resin composition comprising mainly an epoxy-polyamine resin obtained by adding (d) an amine compound having active hydrogen to an epoxy resin, said epoxy resin being a reaction product of (a)  a diepoxide compound represented by the following formula (I)                    (I) wherein R represents a lower alkyl group or -CH2OR' wherein R' represents a hydrocarbon group having 1 to 10 carbon atoms, and m+n is an integer of 1 to 6 (b)  a bisphenol, and (c)  as required, a bisphenol diglycidylether.
Patent CA-1327938-C (CA)
Inventor: ANDERSON JAMES S
IPC: A61K8/00
Filed: 1988-11-15
Granted: 1994-03-22
Abstract: Abstract of the Disclosure The dyeing of keratinaceous fibers can be carried out using certain isatin and amine reactants which are reacted before or during contact with the fibers.
Patent CA-1325196-C (CA)
Title: Disposable make-up kit
Inventor: GUERET JEAN-LOUIS
IPC: A45D34/04
Filed: 1988-12-28
Granted: 1993-12-14
Abstract: A makeup set (1) includes a package, formed of two sheets of plastic material (2a, 2b) partially welded together, in which package and applicator is disposed, comprising an element (8) for holding in the hand and a distributor device (9) in a chamber prefilled with the composition to be tested. The package has two separate portions (13, 14): a first portion (13) capable of being opened, the two sheets (2a, 2b) being joined by a perforated welded bead (6), and a second portion (14) in which the sheets (2a, 2b) are welded. A constriction zone (7) is formed in the plastic sheets (2a, 2b) at the level of the welded portion (14) in order to assure the wiping of the distributor device (9) when it is removed from the package. This makeup set may be presented in the form of small plates (15) on which a plurality of packages (1) disposed side by side are disposed together.
Patent CA-1316763-C (CA)
Title: Boiler pan with easy-out extraction box
Inventor: FALCONNET CLAUDE
IPC: F23J1/02
Filed: 1989-01-10
Granted: 1993-04-27
Abstract: An ashbox for the hearth of a furnace adapted to burn solid fuel, descending along in inclined grate as it burns. The ashbox comprises an extractor chamber having a concave bottom which is part-cylindrical with horizontal generatrices. This chamber is normally filled with water to a level below the upper edge of the chamber. A vertical clinker well terminates at a lower lip below the upper edge of the chamber and is immersed in the water in the chamber. A scraper blade is reciprocated perpendicularly to the generatrices of the concave bottom. An inclined wall merges at its lower end with the concave bottom of the chamber and has an overflow at its upper end above the normal level of the water in the chamber. The arrangement is such that the scraper blade pushes ash up over the overflow lip. The extractor chamber is in two parts and can be opened by relative displacement of these parts to provide vertical access to the ash well. One part of the chamber is a tilting part comprising the concave bottom and the scraper blade.
Patent CA-1302234-C (CA)
Title: Pressure lock bleeder for a well head giving access to a hydrocarbon deposit or to an underground store of gas
Inventor: LE GAC JEAN-YVES
IPC: E21B33/072
Filed: 1989-01-27
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE      The bleeder comprises a hydraulically remotely controlled bleed valve       and means for guaranteeing that during bleeding, the gas is exhausted away from the well head zone. The bleed valve       is advantageously situated at the top end of the pressure lock and comprises a valve body     defining a main channel      of sufficient cross-section to pass a wireline tool, a gas exhaust lateral orifice      for being put selectively into communication with a first transverse channel opening out into the main channel      by means of a closure member constituted by a valve seat and a valve member formed at one end of a piston    , a second transverse channel putting the main channel      into communication with a rear face of the piston    , said rear face having a greater section than its valve-forming front face, and a lateral hydraulic fluid receiving control orifice      connected to a hydraulic remote control flexible hydraulic pipe and opening out into a bore defining an annular space around a portion of the piston    , said bore being of smaller section than the rear face of the piston in contact with the gas present in said second transverse channel   .
Patent CA-1327284-C (CA)
Inventor: MACDONALD STEWART F
IPC: B25H1/00
Filed: 1989-02-21
Granted: 1994-03-01
Abstract: ABSTRACT           An optical drill guide and a drill guide support for electric hand drills.   The drill guide consists of a front sight aperture framed with a light colour and a rear sight aperture formed by a translucent ring.   The line of sight through  the  guide  is  arranged  to be  aligned  with  the longitudinal axis of the drill.  The drill guide is used in conjunction with a mirror placed on the work surface so that when the guide is aligned a reflected image of the front sight surrounds the translucent ring. The guide is adapted to be integral with or detachable from the electric hand drill.  When detachable, a drill guide support is provided which includes mounting means the ends of which are resiliently biased towards each other and adapted to be received in the housing of the drill to align the guide with the axis of the drill.
Patent CA-1326057-C (CA)
Inventor: KUROTORI TSUNEO
IPC: G03G15/20
Filed: 1989-03-31
Granted: 1994-01-11
Abstract: ABSTRACT OF THE DISCLOSURE An image fixing unit for use in a wet-type electro-photographic copying machine capable of forming a latent electrostatic image on a photoconductor element, developing said latent electrostatic image to a visible toner image and transferring said visible toner image to a transfer sheet, comprising (a) a first image-fixing section for heating directly an unfixed toner image formed on a transfer sheet by a developer comprising a toner and a carrier liquid, thereby fixing the toner image to the transfer sheet, which transfer sheet may have a carrier liquid absorbing capacity A or B with respect to the carrier liquid, where A > B; (b) a second image-fixing heating section for minimizing the content of the carrier liquid in the developer by which the toner image is formed, thereby fixing the toner image to the transfer sheet by application of heat thereto; and (c) a switching device for selectively making operable at least one of the first image-fixing heating means or the second image-fixing heating means, depending upon the carrier liquid absorbing capacity of the transfer sheet.
Patent CA-1329480-C (CA)
Inventor: THOMSON IAN H
IPC: D04D9/00
Filed: 1989-04-03
Granted: 1994-05-17
Abstract: ABSTRACT OF THE DISCLOSURE         A device and method for fabrication of military ribbons.  The method comprises wrapping ribbon fabric about a rigid ribbon-forming blank having rearwardly positioned fold-over grooves along its upper and lower edges, and flattening those edges about a ribbon form back plate, in which mounting pins have been positioned, to hold the ribbon form back plate and fabric in position.  The device comprises a frame having a channel within which sits the ribbon-forming blank, with ribbon wrapped thereabout and ribbon form back plate in position in the fold-over grooves, so that a press bar may be depressed onto the ribbon-forming blank, in the groove, to flatten the edges of the fold-over grooves.
Patent CA-1320216-C (CA)
Title: Preparation of bisphenols
Inventor: VAN SHAW PAUL
IPC: B01J31/10
Filed: 1989-05-03
Granted: 1993-07-13
Abstract: A B S T R A C T             PREPARATION OF BISPHENOLS      A process for the preparation of bisphenols which comprises reacting a phenol with a ketone in the presence of a cation exchange resin catalyst and a mercaptan co-catalyst in a reactor or a series of reactors wherein all of the phenol and a portion of the mercaptan is injected into the beginning of the reactor or the first reactor and the remaining mercaptan is injected along the reactor length or in the subsequent reactors whereby cyclic dimers formation is reduced.            ML2.T4183FF
Patent CA-1313730-C (CA)
Title: Circular ring shaped brush section for sweeping machine, and procedure for the production of such a brush section
Inventor: MALTARP KIM F
IPC: A46B3/10
Filed: 1989-05-03
Granted: 1993-02-23
Abstract: SUMMARY   Circular ring shaped brush section for sweeping machines and procedure for production of such brush section. The individual wires (4) in the brush section are held in position mutually in an area close to the internal periphery of the brush section by means of a ring-shaped layer (7) of a thermoplastic material and by a ring (6) which is clamped round the wires (4) and the ring-shaped layer (7).         The brush section can be produced as follows: a sheaf of wires (4) is first creased and cut to length whereafter the wires (4) are cut to accurate length and then a layer (7) of a thermoplastic material is moulded or ex-truded on ore end of the wires (4). The wires (4) are then given the shape of a coherent wire matting. The material (7) is surface cooled in a cooling device (12) whereafter it is forced into shape in a compression and shaping device (13). Then the matting is cut to length and can either be taken out of the machine as semi-manufactures or passed on to a hydraulic press (15) where they are folded to a circular ring shape and fitted into a ring (6).            The brushes in the brush section will be homogeneous. The learning timefor operators is short and the speed of production can be increased. Such a brush section is therefore cheap to produce.
Patent CA-1326973-C (CA)
Title: Railway car body and method of fabricating a railway car body
Inventor: OKUNO SUMIO
IPC: B61D17/04
Filed: 1989-06-06
Granted: 1994-02-15
Abstract: Abstract The present invention relates to a car body for railway rolling stock and a method of fabricating the same.  In particular, the present invention relates to a car body for railway rolling stock which travels at high speeds and a method of fabricating the car body.  In order that a variation of external pressure produced when the rolling stock travels at high speeds is not propagated into the vehicle, the car body is of an air tight structure. However, in the conventional body, no great consideration has been taken with respect to a reduction in weight of the underframe portion or an improvement in rigidity.  The present invention provides a car body for a railway rolling stock which can be reduced in weight and which can withstand a variation of external pressure by providing a construction in which the underframe, constituting the car body, has a curved surface having at least one or more radii of curvature over the width of the car body.
Patent CA-1332386-C (CA)
Title: Transition duct for centrifugal fan
Inventor: KAPLAN VLADIMIR
IPC: F24F5/00
Filed: 1989-06-20
Granted: 1994-10-11
Abstract: ABSTRACT OF THE DISCLOSURE       A curvilinear transition duct for use with a centrifugal fan that affords optimal fan efficiency without undue duct length.  The duct comprises a top section of generally concave planar shape when viewed from above and a bottom section.  Side sections join the top and bottom sections to form a four sided structure having an inlet opening at one side and an outlet opening at the other side.  The preferred bottom section is of a generally longer longitudinal length than the top section.          Further, the preferred duct has a plane in contact with the edges of the inlet opening which intersect a plane in contact with the outlet openings at a level above the duct.  The angle formed between the planes is 1° to 60°.
Patent CA-1318755-C (CA)
Title: Process for producing cyanopsia-correctable lens
Inventor: DAICHO MASANORI
IPC: A61F2/16
Filed: 1989-06-22
Granted: 1993-06-08
Abstract: ABSTRACT       The present invention relates to a process for producing a cyanopsia-correctable intraocular lens, which process is characterized by, in polymerizing a monomer capable of forming a transparent lens material upon polymerization to obtain an intraocular lens, adding, as an essential component, at least one member of yellow, yellowish brown and orange colorants and, as an optional components, an U.V. absorber and a crosslinking monomer.  The intraocular lens obtained by the present invention has a light absorption characteristic close to that of human crystalline lens and is effective for correction of cyanopsia.
Patent CA-1320253-C (CA)
Title: Procede de demodulation et demodulateur de signaux numeriques d'amplitude d'enveloppe constante modules en phase et/ou en frequence de facon continue
Inventor: TANGUY YANNICK
IPC: H04L27/233
Filed: 1989-06-23
Granted: 1993-07-13
Abstract: Procédé de démodulation et démodulateur de signaux numériques d'amplitude d'enveloppe constante modulés en phase et/ou en fréquence de façon continue. L'invention s'applique à la démodulation de signaux numériques composés par des suites de symboles de durée T transmis au moyen de sauts de phase et/ou de fréquence. Le procédé consiste à échantillonner (1), 1R phase du signal modulé détecté, à l'intérieur de chaque durée symbole T au moyen d'un peigne d'impulsions d'échantillonnage obtenu à partir de N impulsions d'horloges régulièrement espacées d'un intervalle de temps égal à T/N; à calculer (1) l'angle de phase différentielle d? intersymbole pour chaque échantillon de phase du symbole courant détecté; à coder (4) chaque angle de phase différentielle d? en lui attribuant un coût de codage; à calculer (4) les sommes des coûts de codage pour les échantillons de même rang symbole appartenant à un nombre déterminé L de symboles consécutifs; à mémoriser (4), parmi les N sommes obtenues celle qui donne le résultat le plus grand; à prendre (4) comme horloge de synchronisation symboles, l'horloge qui dans le peigne d'impulsions possède le même rang que le rang des échantillons qui ont conduit à la somme la plus grande et à décoder (5) l'angle de phase différentielle qui possède le même rang que l'échantillon mémorisé. Application: transmissions numériques de sig?aux radioélectriques. FIGURE 7.
Patent CA-1307750-C (CA)
Title: Composite thread coupling for reinforced pipe
Inventor: ELLSWORTH PHILLIP G
IPC: F16L15/06
Filed: 1989-06-28
Granted: 1992-09-22
Abstract: ABSTRACT    A joint for  fiberglass pipes is provided wherein mating female and male threads are ground or scribed into the ends of the pipes to be joined.   At least one of the ground, threaded surface has a paste thread contact molded onto it so that the root or base of the paste thread is below the crest of the ground thread.  Upon mating of the coupled pipe ends, the paste thread surface provides a smooth finish and a relatively low, consistent engagement and disengagement torque.  The overlapped projections of the ground male and female threads provide for mechanical interlock and correspondingly enhanced tensile strength in the joint.
Patent CA-1319328-C (CA)
Title: Froth removing system
Inventor: MERCIER ROBERT
IPC: C02F1/40
Filed: 1989-06-30
Granted: 1993-06-22
Abstract: ABSTRACT OF THE DISCLOSURE:         There is disclosed a system for removing froth at the surface of the water in a decantation basin of a water-treatment plant.  One end of the basin is formed with a froth-collecting trough having an operative wall of which the top includes a froth landing ramp positioned to extend above and below the water surface in the basin so that  the froth may be pushed over it and into the trough.   A heating chamber is  formed above the trough with a vertical opening which is  closed by a flexible or rigid skirt  extending down  to  the  ramp,  the  skirt being free of the ramp and being able to yield to pressure from froth moving on the ramp to allow the said froth to enter into the chamber and be dropped into the trough. A radiant heating installation is provided in the chamber to heat the froth that accumulates on the ramp, to prevent it from freezing.
Patent CA-1326270-C (CA)
Inventor: GESCHKA MARTIN
IPC: H02G5/04
Filed: 1989-06-30
Granted: 1994-01-18
Abstract: ABSTRACT OF THE DISCLOSURE            A contact line for the transmission of data and/or energy for conveyors, robots, or the like, with a pickup that incorporates a wiper head that is connected to the conveyor, is made of an electrically conductive plastic.  As a result, the transmission of data and/or energy is enhanced and made less costly.
Patent CA-1341036-C (CA)
Inventor: JANULIS EUGENE P
IPC: C09K19/20
Filed: 1989-08-24
Granted: 2000-06-20
Abstract: Achiral fluorine-containing liquid crystal compounds are provided. These compounds are of the general formula I    where M, N and P are each independently   a, b, and c are independently zero or an integer of from 1 to 3 with the proviso that the sum of a + b + c be at least 2; each A and B are non-directionally and each independently nil,    , -CH2CH2-, -CH=CH-, -C~C-, CH=N-, -CH2-O-, -CO-or -O-; each X, Y and Z are independently -H, -Cl, -F, -Br, -I, -OH, -OCH3, -CH3, -CN or -NO2; each l, m and n are independently zero or an integer of 1 to 4, D is  , -O-(CH2)r-, -(CH2)r-, -OSO2-, -SO2-, -SO2-(CH2)r-, -O(CH2)r-O-(CH2)r,   where r and r' are independently 1 to 20, and p is 0 to 4;      R is -O-C4H2q-O-C q'H2q'+l' -C q H2q-O-C q'H2q'+l' -C q H2q-R', -O-c q H2q-R',   where R' is -Cl, -F, -CF3, -NO2, -CN, -H,   and q and q' are independently 1 to 20, and R can be straight chain or branched, and R f is C q F2q+1 where q and q' are independently 1 to 20.      The compounds comprise a fluorocarbon terminal portion and a hydrocarbon or another fluorocarbon terminal portion, the terminal portions being connected by a central core, the compounds having smectic mesophases or having latent smectic mesophases. The compounds are useful in smectic liquid crystal display devices bath alone and in mixtures with other materials. Also provided is a process for preparing these compounds.
Patent CA-1333281-C (CA)
Inventor: CLAYTON CHARLES H
IPC: E21B17/22
Filed: 1989-09-07
Granted: 1994-11-29
Abstract: A drilling assembly comprises a matched bit and stabilizer in which the maximum outer diameter of the bit and stabilizer have been measured and machined to be within predetermined tolerances.  The maximum stabilizer diameter is in the range of .003 - .025 inches in diameter less than the measured bit O.D. Preferably, the maximum stabilizer diameter is in the range of .005 - .010 inches in diameter less than the measured bit O.D.  A series of stabilizer assemblies are provided, including a single stabilizer assembly, a double stabilizer assembly,  a hole straightening assembly, a large bit O.D. drilling assembly and a small bit O.D. drilling assembly.
Patent CA-1300763-C (CA)
Title: Semiconductor device radiation hardened mesfet
Inventor: NISHIGUCHI MASANORI
IPC: H01L29/10
Filed: 1989-09-20
Granted: 1992-05-12
Abstract: ABSTRACT  This invention is for improving the radiation hardness or radiation resistance of GaAs MESFETs.          According to this invention, an n-type active layer is formed by doping GaAs crystal evenly depthwise of the GaAs crystal, and a Schottky gate electrode is provided on the active layer, so that the carrier concentration in the active layer and the thickness of the active layer are set required values.  According to this invention, not only in the case of a total dose of exposure radiation of R=1x109 roentgens but also in the case of a higher total dose, at least one of the threshold voltage Vth of the GaAs MESFET, the saturated drain current Idss there of, and the transconductance gm are in their telerable range.  Consequently a semiconductor device comprising the GaAs MESFET and a signal processing circuit cooperatively combined therewith can operate normally as initially designed, with a result of conspicuously improved radiation hardness.
Patent CA-1332851-C (CA)
Inventor: MATSUURA MITSUYUKI
IPC: C08F10/00
Filed: 1989-09-27
Granted: 1994-11-01
Abstract: In a process  for producing  granular  propylene block copolymers by Ziegler-Natta polymerization of an .alpha.-olefin wherein  the  Ziegler-Natta  catalyst  comprises  a granular solid transition metal catalyst component and an organometal component  in two steps wherein a  resinous homopolymer of propylene is produced in the first step and an elastomeric copolymer of propylene with ethylene is produced in the second step,  the improvement which comprises the use as the granular solid transition metal component of a mixture of  the solid transition metal components,  one made up substantially of particles of particle size of more than 5 microns and the other made up substantially of particles of particle size of 1 to 5 microns thereby to produce granular propylene copolymers endowed with an improved granulometric properties such as lowered  tackiness and  thus  improved  flowing characteristics.    The  component  (B)  is  preferably produced from the particles  for  the component  (A)  by reducing the particle size of its particles.
Patent DK-159059-C (DK)
Inventor: STERNER FRANZ
IPC: B29C45/77
Filed: 1985-03-20
Granted: 1991-01-28
Abstract: An injection mold comprises two or more mold sections, which enclose a cavity for molding an injection-molded part. The mold cavity is adapted to be supplied with the molding material through at least one entrance opening. The injection mold is maintained at a temperature at which the molding material is set. Said molding material is injected in a liquid state at a greatly differing temperature. To simplify the injection molding operation, to avoid damage by the removal of sprues, and to accelerate the manufacture,the molding material is injected through the entrance opening directly into the cavity by means of at least one injection nozzle. The injection mold comprises an injection nozzle having a nozzle tip which fits the entrance opening.