baber/WOPTO huggingface dataset:
Patent CA-2001707-C (CA)
Inventor: DE KOK JOPHN
IPC: F15B11/032
Filed: 1989-10-27
Granted: 1993-10-12
Abstract: ABSTRACT     A pressure intensifier comprising a housing incorporating a first floating piston-cylinder unit with means to supply a primary pressurized fluid medium to one side of the piston to apply pressure to a fluid medium in contact with the other side of the first piston, a second floating piston unit provided with a fluid medium communication port therethrough, there being direct communication between the medium contacting the other side of the first floating piston with one side of the second floating piston and through the port thereof to a fluid medium pressure power take-off chamber, the port of the second floating piston being closeable by means of a valve comprising two active parts, one part of which is incorporated in the second floating piston and the other part of which is provided with limited movement with respect thereto, there being means to apply primary fluid pressure to the other side of the said second floating piston to maintain the communication port open, the other part of the valve being constituted by a further ported piston the port of which is closeable by the said valve arrangement to allow the further ported piston to act as a high pressure creating piston on the fluid medium in the power take-off chamber.
Patent CA-2004863-C (CA)
Inventor: MEYERS CLIFFORD W
IPC: G01R29/06
Filed: 1989-12-07
Granted: 1994-11-08
Abstract: ABSTRACT OF THE DISCLOSURE     An automated process and device for testing both C.W. and swept output signal modulation of a system or unit under test.  The invention conditions the output signals to be compatible for measurement, measures incremental cycle periods of the signals using a continuous time counter, converts raw signal data into formatted tables, calculates prescribed parameters relating to the signals, aligns the calculated prescribed parameters relating to the signals, computes incremental signal frequencies from the incremental cycle periods as measured, substarts the incremental signal frequencies from the predicted signal frequencies to form a frequency residual model, constructs a curve using the incremental signal frequencies, and displays the curve.  A prediction model is created and used to predict expected results.  The prediction model defines ideal behavior of both C.W. and swept signals from a unit under test.  The ideal behavior data is subtracted from the actual data, leaving a coarse representation of non-linearities.  A combi-nation of digital filtering, least squares curve fitting and the Choelsky method for solving simultaneous equations is used to refine coarse data into a frequency vs. time continuous curve or for other uses by the unit under test.  The invention can be used for integrated circuit testing in manufacturing and incoming inspection for all types of fixed oscillators, all types of voltage controlled oscillators, and amplitude modulation and frequency modulation heterodyning chips, and instrument and module testing for manufacturing, incoming inspection, field test and diagnostics for function generators, sweep generators, oscillators and synthesizers.
Patent CA-2007623-C (CA)
Inventor: HOSONO HIROSHI
IPC: B32B27/30
Filed: 1990-01-11
Granted: 1999-03-23
Abstract: Divulgation concernant une pellicule antibuée, à structure multicouche, composée d'au moins deux couches d'une pellicule réticulée sur un substrat. Les principaux constituants de la pellicule réticulée sont (A) un poly(alcool vinylique) et (B) au moins un constituant choisi parmi (a) une silice colloïdale dont les particules mesurent en moyenne 5 à 200 microns, (b) un composé organique silicié de formule R1R2a SiX3-a, où R1 est un groupe organique de 1 à 10 atomes de carbone, R2 est un groupe hydrocarboné de 1 à 6 atomes de carbone, X est un groupe hydrolysable et a est 0 ou 1, et (c) un produit d'hydrolyse d'un composé organique silicié de formule R1R2a SiX3-a, où R1, R2, X correspondent aux définitions ci-dessus; la valeur S2/S1 du rapport pondéral S2 du constituant (A) au constituant (B) dans la couche contiguë à la couche superficielle la plus à l'extérieur, au rapport pondéral S1 du constituant (A) au constituant (B) dans la couche superficielle la plus à l'extérieur, est d'au moins 1,05.
Patent CA-2011101-C (CA)
Title: Method and apparatus for the rendering of geometric volumes
Inventor: MOSHER CHARLES EDWARD JR
IPC: G06T15/00
Filed: 1990-02-26
Granted: 1998-12-22
Abstract: A method and apparatus is provided to directly render volumes from volume data whereby the resolution of the volume is not lost and the volume data is completely interactive with geometric data.The volume or portion of the volume to be rendered is aligned to a geometric primitive and a mapping function is generated relating the geometric primitive to the volume or volume portion. The mapping function relates each voxel in volume space to an element or point of the primitive. Thus, the volume is displayed as a function of the geometric primitive the volume or volume portion is mapped to. In the preferred embodiment the volume or portion of volume to be rendered is bound by one or more geometric primitive and a mapping is generated relating the geometric primitive, such as a 3-D polygon, to the volume. Thereafter, any geometric operation performed on the volume is accomplished by performing the operation on the geometric primitive and using the mapping function to translate the volume into geometry space whereby the volume data is displayed. By defining the volume as a function of geometric primitives such as a polygon, geometric operations, such as clipping or rotating, may be performed easily on the primitive and the data is used to look up through the mapping function to determine the corresponding volume data to be displayed.
Patent CA-2021864-C (CA)
Title: Fully automatic washing machine
Inventor: KAMANO TOSHIYASU
IPC: D06F33/40
Filed: 1990-07-24
Granted: 1996-08-27
Abstract: A fully automatic washing machine comprising a washing/dehydration basket, an agitator rotatably disposed inside the washing/dehydration basket, a motor for rotating the washing/dehydration basket or the agitator, a detector for detecting the amount of wash corresponding to the washing load, a detector for detecting the level of water in the washing/dehydration basket, and a control circuit for controlling operations of washing and dehydration processes.  Water-reserved-starting of the dehydration process is effected in such a manner that dehydration is started while leaving a certain quantity of water in the washing/dehydration basket.  The amount of cloth is detected by the cloth amount detector before the start of the washing process or at an initial stage of the same, and a value thus detected is stored in the control circuit.  Washing water is discharged while reading a signal from the water level detector before the start of the dehydration process, thereby leaving a certain quantity of water corresponding to the cloth amount value previously stored.
Patent CA-2023293-C (CA)
Title: Tool apparatus for applying large forces
Inventor: STEUBE GARY J
IPC: B23D17/06
Filed: 1990-08-15
Granted: 1998-04-07
Abstract: A tool apparatus for applying a large closing force to an object is disclosed.  The tool apparatus, capable of improving the efficiency and ease of effort required to crimp nuts onto bolts and to cut materials such as multi-strand cables, bars and the like, comprises first and second jaws, each having first and second portions.  Each first portion has a linking end. A mechanism is provided for interconnecting the first and second jaws, and for providing a pivoting point for each of the first and second jaws.  A hydraulic cylinder drives a rod linearly along a drive axis from a first position to a second position with a drive force.  A scissor mechanism is provided for connecting the rod to the linking end of the first jaw and to the linking end of the second jaw, and for translating and multiplying the drive force to apply an opening force to each of the linking ends, whereby the first portions rotate from their closed position to their open position and the second portions rotate from their open position to their closed position to apply the closing force to the object.
Patent CA-2023664-C (CA)
Title: Flip-top cartons
Inventor: LAMM KLAUS PETER
IPC: B31B17/00
Filed: 1990-08-21
Granted: 1997-03-18
Abstract: A carton (11) with parallel flat front and rear surfaces joined by curved sides and a flip-top lid (10) hinged to the carton.  The carton is composed of two superimposed layers adhesively secured at a joint line at lapped edges.   The outer layer is slit along its front surface parallel to the carton ends and along upwardly extending curves around the sides to a fold line parallel to and raised above the front slit and the inner layer (12) has a cutout in its front surface above the front slit of the outer layer.  The cutout curves upwardly short of the sides where tags (13) are cut out of the sides of the inner layer and the outer layer overlaps the inner layer at the carton ends.  Top and bottom closures are adhesively secured to the outer layer at the ends of the carton.
Patent CA-2025232-C (CA)
Title: Carrier recovery system
Inventor: YOSHIDA SHOUSEI
IPC: H04L27/227
Filed: 1990-09-12
Granted: 1993-06-29
Abstract: ABSTRACT     A carrier recovery system combining a narrow band carrier phase estimater and a wide band carrier phase estimator, and a digital phase demodulator using this carrier recovery system.  The narrow band carrier phase estimator extracts a carrier phase having a low pulse slip rate from received signal.  This carrier phase, however, cannot track fast phase fluctuation due to fading.  On the other hand, the wide band carrier phase estimator tracks fast phase fluctuation due to fading, and extracts a carrier phase from the received signal.          From this carrier phase is subtracted the other carrier phase obtained by the narrow band carrier phase estimator, and the balance, after its fluctuating range is limited, is added to the carrier phase obtained by the narrow band carrier phase estimator, thereby making it possible to obtain a carrier phase which can track fast phase fluctuations due to fading without sacrificing the phase slip rate.  By using the carrier phase obtained in this manner, there can be structured a digital phase demodulator suitable for mobile communication systems based on coherent detection.  If carrier component is extracted by reversely modulating the received signal with reference signal obtained by subjecting to decision the signal demodulated by this digital phase demodulator, a carrier phase is recovered by filtering the extracted carrier component in a wide band, and the received signal is synchronously detected with this carrier phase, the error rate can be further reduced.
Patent CA-2037567-C (CA)
Title: Edge belt sander with swingable dust hood
Inventor: CROUCH ROBERT H
IPC: B24B55/08
Filed: 1991-03-05
Granted: 1994-07-12
Abstract: ABSTRACT OF THE DISCLOSURE      A swingable dust hood is provided for use in the dust removal system of an endless belt type working machine.  The dust hood has a jet air cleaner positioned on an inner wall which blows dust and other particles off the workpiece for exhaust via an outlet connected to the dust hood.  A pivot rod is fixed to the outer shell of the dust hood and is rotatably journalled in a pivot receptacle bracketed to the machine support table.  The hood can accordingly be positioned in three primary positions; namely, a first position wherein the hood completely encases a roll when the workpiece does not extend part the form platen; a second position wherein the hood partially encloses the piece when the workpiece is extended past the platen; and a third position wherein the hood is swung back to completely expose the drive roll to permit changing or repair of the endless belt and/or the roll.
Patent CA-2037645-C (CA)
Inventor: CHIEN SHI-HAI
IPC: F16H48/30
Filed: 1991-03-06
Granted: 1994-05-17
Abstract: Disclosed is an improved variable speed transmission system adapted for, in particular, an electrically powered vehicle.  The system is operated by a common manual gear shift.          The manual gear shift has a power source made up of a specially designed electric motor having a rotatable outer shell which is relatively moveable with respect to a core rotor so that the power from the rotatable outer shell and from the core rotor of the electric motor can be output respectively to front and a rear differential gear devices, and the vehicle can be powered to move via the differential gear devices.  Respective transmission shafts between the electric motor and the front and rear differential gear devices can be selectively locked so that the power from the motor to the differential gear devices can be selectively varied so that the rotational speed of the wheels of the automobile can be varied.
Patent CA-2042895-C (CA)
Title: Process for making preshrunk size-free denim
Inventor: GREEN JAMES RALPH
IPC: D06C21/00
Filed: 1991-05-17
Granted: 2000-12-05
Abstract: Denim fabric having warp yarns containing cotton and high shrinkage synthetic staple fiber is desized, preshrunk and compressively shrunk.
Patent CA-2044984-C (CA)
Title: Catalyst for purifying exhaust gas from diesel engines
Inventor: HORIUCHI MAKOTO
IPC: B01J23/46
Filed: 1991-06-19
Granted: 1996-04-02
Abstract: A catalyst for purifying exhaust gas from Diesel engines, having a catalyst component-carrying layer made of a refractory three-dimensional structure having carried thereon a catalyst component containing (a) a refractory inorganic oxide, (b) at least one noble metal selected from palladium and platinum, and (c) rhodium, wherein the rhodium is contained only in an upper layer portion of the catalyst component-carrying layer corresponding to no more than 80 % in thickness of the catalyst component-carrying layer.
Patent CA-2049963-C (CA)
Title: Electronic capacitive level with automatic electrode selection
Inventor: HEGER CHARLES E
IPC: G01C9/20
Filed: 1990-03-20
Granted: 2001-08-28
Abstract: A capacitive type, multi-electrode inclination sensor device (20) utilizes a conductive fluid (26) acting as a common capaci-tive electrode contained within a cylindrical cavity (24). Two or more coplanar sensor electrodes (21A-21D) are covered by a thin dielectric film (22) and are mounted on an end wall (32) of the cavity (24).  Each insulated electrode (21A,-21 D) forms one plate of a capacitive element with the conductive fluid (26) forming the other plate.  The geometry of the sensor electrodes is such that for a given physical position of the device (such as level or plumb), equal conductive fluid coverage of a given pair of sensor elec-trodes occurs, yielding two identical value capacitances. Any inclination of the device within the plane of the capacitive plates then increases one capacitance's. value while decreasing the other, with the differential change in capacitance being proportional to the angle of inclination.
Patent CA-2066090-C (CA)
Title: Multigas scrubber
Inventor: LILJA LAUNO LEO
IPC: B01D53/74
Filed: 1992-04-15
Granted: 1999-06-22
Abstract: The invention relates to an apparatus where the wet scrubbing of several different gas flows is carried out in at least three scrubbing towers, and the droplet separation of scrubbed gases takes place in a cyclonic, uniform droplet separator constructed of several cylinders, so that the obtained product is a pure and droplet-free gas.
Patent CA-2067581-C (CA)
Title: Equivalent inductance circuit
Inventor: HONDA FUMIAKI
IPC: H03H11/48
Filed: 1992-04-29
Granted: 2001-01-30
Abstract: An equivalent inductance circuit includes a feed-back type integration circuit and a differential amplifying circuit. An input signal applied to an input terminal is integrated by the feed-back type integration circuit and, a signal according to a difference component between an integrated output signal and the input signal is outputted by the differential amplifying circuit. By feeding the difference signal back to the input terminal, an input impedance equivalently represents an inductance characteristic. Such equivalent inductance can be changed by a current from a variable current source which supplies the current to the differential amplifying circuit and, a change of the equivalent inductance shows an inverse proportional manner.
Patent CA-2069995-C (CA)
Title: Olefin polymerization solid catalyst, olefin polymerization catalyst and olefin polymerization
Inventor: TSUTSUI TOSHIYUKI
IPC: C08F210/16
Filed: 1992-05-29
Granted: 1996-04-09
Abstract: The present invention relates to a solid catalyst composed of a specific solid catalyst component [A-1], the catalyst containing the solid catalyst and the olefin polymerization process using the solid catalyst, in which the solid catalyst component [A-1] comprises; (a-1) a particulate carrier composed of a specific oxide of a metal; (a-2) an organoaluminum oxy compound; and (a-3) a specific transition metal compound containing a specific ligand, wherein the organoaluminum oxy compound (a-2) and the transition metal compound (a-3) are supported on the particulate carrier (a-1) .    The catalysts are applicable to a suspension polymerization and a vapor phase polymerization, and capable of preparing spherical olefin polymers excellent in particle characteristics at high polymerization activity.
Patent CA-2071708-C (CA)
Title: Audio surround system with stereo enhancement and directivity servos
Inventor: GATES STEPHEN F
IPC: H04S5/02
Filed: 1992-06-19
Granted: 1998-01-06
Abstract: A audio surround system particularly arranged for use in a theater provides the enhanced ambience and wide sound image  advantages  of a  stereo enhancement  system  (SRS system) having directivity servos.  A stereo enhancement system known as the "SRS" enhancement system enables a pair of relatively closely spaced speakers to provide a wide sound image lacking in any apparent point source and having enhanced directivity.  A first SRS system (10) is modified for  use  with  a  set  of  front  speakers  (16,22,26)  by increasing speed of its directivity servos (80), minimizing "pumping" caused by the increased directivity servo speed, increasing  its  threshold,  and  providing  a  bleed  for minimizing reverberation effect.  A similar SRS system (34) drives a set of rear speakers (40,46,50) and is differently modified to eliminate certain high pass filters (86,110), increase speed of its directivity servos (80), and to feed only ambience signals to left and right rear speakers (40,46).  Center sound, the sum signal from the rear SRS system (34), is fed to a sub-woofer (50).
Patent CA-2073167-C (CA)
Title: Safety sleeve adaptor
Inventor: MONCADA ELIZABETH
IPC: A61M5/32
Filed: 1990-01-03
Granted: 2001-03-20
Abstract: An adapter (80) for mounting a protective sleeve (98) or needle guard on a syringe or other needle fitting is provided including a first locking portion (102) for engagement with a locking portion (118) at  an end of a syringe, a needle mount (94) at an opposite side of the adapter, and engaging means (100) for selectively engaging the protective sleeve or needle guard into at least a needle protecting position. The needle mount can be separable from the adapter, or can be integrally formed therewith.
Patent CA-2075791-C (CA)
Title: Brushless induction synchronous motor with two stators
Inventor: SATAKE TOSHIHIKO
IPC: H02K16/00
Filed: 1992-08-11
Granted: 1997-01-14
Abstract: Rotor windings are wound on the poles of each of two salient pole-type rotor cores, and the rotor windings on the salient poles axially-aligned on the two rotor cores are connected in series.  A diode is connected across each respective pair of lines connecting each respective axially-aligned pair of poles of the rotor cores.  A plurality of rotor conductors are provided on the periphery of, and extending through, the two rotor cores.  Two stators and two DC magnetic excitation windings surround and face the two rotor cores.  The number of poles of the stator is the same as that of the rotor core, and the number of poles of the DC excitation windings is different from that of the rotor core. A voltage phase shifter is provided to one of the two stators to selectively produce a phase difference of 0° or 180° between the two rotating magnetic fields produced around the two salient pole-type rotor cores.  The motor starts and accelerates according to the principles of an induction motor with a phase difference of 0°.  When the rotational speed of the motor approaches the synchronous speed, the motor is pulled into synchronous operation by having the phase difference switched to 180° and having the DC magnetic excitation windings become operational.  Alternating voltages induced in the rotor windings by the static magnetic fields of the DC excitation windings are rectified by the diodes, and magnetic poles are formed on the two salient pole-type rotor cores.  The motor produces a large starting torque since it starts on the same principle as that of the conventional induction motor and, therefore, does not require any special starting means.  Since the rotor windings function as field windings during the synchronous operation, the motor produces a large torque without requiring maintenance of, for example, brushes.
Patent CA-2076262-C (CA)
Title: Method of forming strip products from thermoplastic materials
Inventor: CEHELNIK EDWARD CHARLES
IPC: B29C48/06
Filed: 1992-08-17
Granted: 2002-04-23
Abstract: A method of forming an elongated trim strip product comprises extruding a first strip of thermoplastic material from a die having an outlet with an area at least substantially as great as the desired cross-sectional area of the strip product in planes perpendicular to the direction of extrusion. Immediately subsequent to the step of extruding and while the extruded strip is still in a plastic state, it is passed longitudinally between cooperating forming rolls to shape the cross section of the extruded strip to the desired shape and cross section of the strip product. While the extruded strip is passing between the cooperating forming rolls, a backing strip of foil or thin metal is directed between the rolls in alignment with the extruded strip to bond the backing strip to the extruded strip.
Patent CA-2078519-C (CA)
Title: Process for the preparation of chlorosulfate and sulfamate derivatives of 2,3:4,5-bis-0-(1-methylethylidene)-beta-d-fructopyranose and (1-methylcyclohexyl)methanol
Inventor: MARYANOFF CYNTHIA A
IPC: C07C303/34
Filed: 1992-09-17
Granted: 2003-09-16
Abstract: A process for producing chlorosulfate and sulfamate esters of 2,3:4,5-bis-O-(1-methylethylidene)-.beta.-D-fructopyranose and (1-methylcyclohexyl)methanol is disclosed. The process involves a two step procedure involving in the first step reacting of an alcohol with sulfuryl chloride in the presence of a tertiary or heterocyclic amine base in a solvent selected from the group consisting of toluene, t-butyl methyl ether or tetrahydrofuran, and in the second step reacting of the resulting intermediate with an amine in a solvent selected from the group consisting of toluene, t-butyl methyl ether, tetrahydrofuran and lower alkanol.
Patent CA-2080628-C (CA)
Inventor: WHITE NORMAN H
IPC: F16K31/70
Filed: 1992-10-15
Granted: 1994-12-13
Abstract: A cryogenic pilot valve comprising a thermal sensing element of two disparate thermal expansion materials on an actuator body joined to a control fixture having an integral valve wherein the actuator body and the control fixture are rigidly joined by loaded threads which simultaneously serve as the calibration set point device.