baber/WOPTO huggingface dataset:
Patent CA-2010146-C (CA)
Title: Switched reluctance motor drive system and laundering apparatus employing same
Inventor: MACMINN STEPHEN R
IPC: D06F34/10
Filed: 1990-02-15
Granted: 1994-07-26
Abstract: SWITCHED RELUCTANCE MOTOR DRIVE SYSTEM AND LAUNDERING APPARATUS EMPLOYING SAME                    Abstract of the Invention A microcomputer-based drive system for a switched reluctance motor requires no rotor position sensor and no discrete current sensors.  Phase excitation is synchronized with rotor position by indirectly estimating rotor position according to instantaneous phase inductance.  Current regulation is achieved by incorporating pilot devices for current sensing into the switching devices of the power converter and by employing a fixed off-time current chopping strategy.  One application is for use in a laundering machine.
Patent CA-2016638-C (CA)
Title: Data communication bypass apparatus and method
Inventor: TYRRELL RAYMOND E
IPC: H04Q11/04
Filed: 1990-05-11
Granted: 1994-05-10
Abstract: ABSTRACT OF THE DISCLOSURE      A low speed channel bypass apparatus is described for reprovisioning the time slot multiplexer associated with an add/drop multiplexer so as to insure that particular low speed channel(s) within a high speed channel are passed through the add/drop multiplexer via the time slot multiplexer when the operation of an associated network controller is determined to be faulty.  The low speed channel bypass apparatus is particularly directed for use with a high speed channel conforming to the synchronous optical network communication standard (SONET).  A watchdog timer is used to monitor the performance of the network controller.  The watchdog timer when timed out not only prevents further operation of the network controller, but instructs an associated reprovisioning apparatus to instruct the time slot multiplexer to connect through selected channel(s) from the east high speed interface to the west high speed interface.
Patent CA-2019773-C (CA)
Title: Assembly for testing printed circuit boards and its use for testing digital signal multiplexing-demultiplexing printed circuit boards
Inventor: BEAUFILS JEAN-MARIE
IPC: G06F11/22
Filed: 1990-06-26
Granted: 1993-11-30
Abstract: This test device for a printed circuit board includes a printed circuit board, termed a test card, capable of being connected to the printed circuit board to be tested. At least one of these two boards is equipped with circuits for selecting the type of signals processed by the board to be tested. These circuits are capable of putting the board to be tested either in the test configuration or in the normal configuration. The test card is fitted with configuration control ports and is equipped with circuits for connecting these ports to the said selection circuits. 
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Patent CA-2024667-C (CA)
Title: Process for preparing a concentrate of blood coagulation factor viii-von willebrand factor complex from total plasma
Inventor: BURNOUF THIERRY
IPC: G01N33/86
Filed: 1990-09-05
Granted: 2001-07-31
Abstract: The invention relates to a process far preparing a concentrate of Factor VIII-von Willebrand factor complex having high specific activity from total (non-cryoprecipitated) plasma.      The process comprises pre-purifying by means of a double treatment with barium chloride and with aluminium hydroxide.  The process then comprises purification by chromatography on an anion exchange resin, of the DEAE-Fractogel type.      The process includes a step of viral inactivation by means of a treatment with solvent-detergent.      The process also makes it possible to recover fibrinogen, albumin, immunoglobulins, antithrombin III, fibronectin and prothrombin complex, from the same plasma.      The different concentrates obtained using the process according to the invention are intended, in particular, for therapeutic use.
Patent CA-2024847-C (CA)
Title: Reduced sized hydraulic motor
Inventor: WHITE HOLLIS N JR
IPC: F03C2/08
Filed: 1990-09-07
Granted: 2002-06-25
Abstract: In a hydraulic motor having an orbiting valve, the improvement of the orbiting valve being connected to the wobble stick for rotation therewith and the orbiting valve being non-circular with a series of discreet valving openings and notches formed therein.
Patent CA-2026448-C (CA)
Title: Spreads containing chlorophyll
Inventor: DECIO MAURIZIO
IPC: A23D7/00
Filed: 1990-09-28
Granted: 2000-07-04
Abstract: oil processing for spread manufacture is a complex and expensive process. During the refining process many of the trace components of the original unrefined oil are lost. The invention concerns the use of unrefinined oils to prepare edible emulsions without the necessity of refining. The products according to the invention are characterised as being edible emulsion comprising at least 1ppm chlorophyll on fat phase. Such levels of chlorophyll are found for example in spreads prepared as blends of olive oil and butter.
Patent CA-2029274-C (CA)
Title: Automatically shifting stair climber structure for a repositionable hand truck
Inventor: MORTENSON CARL N
IPC: B62B5/02
Filed: 1990-11-05
Granted: 1996-10-15
Abstract: A two-wheeled hand truck has a vertically inclined upright frame with a load supporting nose at its lower end.  The frame is supported on a pair of wheels mounted on an axle by brackets which are pivotally connected to the frame for movement from a first load supporting position adjacent the frame to a rearward second position for supporting higher center of gravity loads.  A stair climber structure is pivotal on the axle, and a link structure automatically shifts the position of the rear inclined linear surfaces of the stair climber structure to maintain them in a plane extending tangentially to the peripheries of the wheels when the brackets and wheels are moved.
Patent CA-2039591-C (CA)
Title: Hue compensation apparatus for a color hard copy machine
Inventor: MACHIDA TOSHIO
IPC: H04N9/00
Filed: 1991-04-02
Granted: 1996-06-25
Abstract: A hue compensation apparatus outputs hue-compensated data of a color designated by an input color selection signal of red, green and blue, responsive to red, green and blue input signals. The hue compensation apparatus uses first, second and third lookup table cir-cuits, a decoder, a polarizing circuit and a synthesizing circuit. The lookup table circuits output hue-compensated red, green and blue sig-nals in response to input red, green and blue signals, respectively. The decoder decodes the input color selection signal, and the polariza-tion circuit polarizes outputs from the first, second and third lookup table circuits according to an output of the decoder. The synthesizing circuit synthesizes the polarized output from the first, second and third lookup table circuits. The synthesizing circuit thus outputs a hue-compensated color signal whose color is designated by the color selection signal by synthesizing the polarized outputs from the polar-ization circuit.
Patent CA-2044558-C (CA)
Title: Methods and apparatus for cymk-rgb ramdac
Inventor: SMITH DAVID M
IPC: H04N9/74
Filed: 1991-06-13
Granted: 1995-06-13
Abstract: A thirty-two bit frame buffer provides real time conversion of CYMK color data to RGB color data for display on a video monitor.  The frame buffer operates at a video rate of 100 mHz and includes pipelined arithmetic using look up tables for some of the CYMK to RGB conversion steps.  Also provided are look up tables providing gamma correction and pixel-by-pixel selection of CYMK to RGB conversion, to allow display of an RGB window in a CYMK information display.
Patent CA-2045040-C (CA)
Title: Sheet-processing machine and coupled transportation arrangement for sheet piles
Inventor: ZAHN ERICH
IPC: B65H31/30
Filed: 1991-06-20
Granted: 1995-12-26
Abstract: In   a   sheet-processing  machine   and   a   coupled transportation arrangement for sheet piles, a carrying device for a sheet pile,  which carrying device is allocated  to  the  machine  and  can  be  raised  and lowered,  comprises  first  transportation devices by means of which a pile support designed as a flat pallet and accommodated by the carrying device can be moved horizontally. In addition, second transportation devices allocated to the first transportation devices are provided on both sides of the machine. Together with the first transportation devices that are moved down to a lower level, these form a conveyor section composed of aligned partial conveyor sections, which conveyor section  is equipped with guide devices -directly interacting with the said flat pallet - for straight-line motion of the  flat pallet along the conveyor section.
Patent CA-2048545-C (CA)
Title: Post stabilization of buildings
Inventor: HARKE ALFONS
IPC: E04G23/04
Filed: 1991-08-07
Granted: 2004-10-26
Abstract: Described herein are a procedure and aids for past stabilization of buildings with free-floating floors that incorporate a plurality of longitudinal beams (1) that rest with their ends on the building walls. In order to achieve greater safety in the case of earthquakes or gas explosions it is proposed that the ends of the longitudinal beams (1) be clamped to each other and to the building end walls (5, 5) that support them and, in addition, the two outermost longitudinal beams (la, lb) of the floor area that is to be stabilized are clamped to each adjoining parallel building side wall (6, 6) by means of injection anchors (14, 16) such that the floor area that is to be stabilized is enclosed by a stable ring anchor. The total floor area can be reinforced by means of longitudinal and transverse anchors (16, 25, 26) that are inserted so as to form a grid.
Patent CA-2050801-C (CA)
Title: Method for producing glass article
Inventor: DANZUKA TOSHIO
IPC: C03B37/018
Filed: 1991-09-06
Granted: 1998-06-30
Abstract: A glass article is produced at a high production rate and a high yield by jetting a glass-forming raw material from a multi-port burner, synthesizing glass soot through hydrolysis of the glass-forming raw material, depositing the glass soot to form a soot preform, and heating and vitrifying the soot preform to produce a transparent glass article.  The glass-forming raw material is vaporized by heating it at a temperature higher than its boiling point and it is directly supplied to the burner.  The vaporized glass-forming raw material and a fuel gas for synthesizing glass soot are supplied to an inner port of the multi-port burner, and a fuel gas for heating the preform is supplied to an outer port of the multi-port burner.  The molar ratio of water generated by reaction of the fuel gas for synthesizing glass soot to the glass-forming raw material is from 2 to 3.
Patent CA-2051564-C (CA)
Title: Junction box with protection function to protect from overvoltage and overcurrent
Inventor: TANAKA YOSHIYUKI
IPC: H01T4/06
Filed: 1991-09-17
Granted: 1996-08-06
Abstract: A junction box, for connecting communication lines to an electronic device, protects the electronic device as well as the communication lines from alightning surge, overvoltage, and/or overcurrent. The junction box includes a first pair of sockets for connecting to the communication lines, a second pair of sockets for connecting to the electronic device, a pair of lines connecting the first pair of sockets to the second pair of sockets, and at least one combination of a surge-absorbing element and an associated low-melting-point wire connected in direct thermal contact with a surface of the surge-absorbing element. The surge-absorbing element heats up if the voltage or current across it becomes too high, and that heat melts the associated low-melting-point wire which forms a portion of the pair of lines.
Patent CA-2052540-C (CA)
Title: Method of producing optical fiber coupler
Inventor: SUGANUMA HIROSHI
IPC: G02B6/28
Filed: 1991-09-30
Granted: 2000-10-31
Abstract: In a method of producing an optical fiber coupler, in which glass portions of a plurality of optical fibers are heated to be fusion bonded to each other and are then heated for stretching, the improvement comprising using a gas burner as the heat source, the burner having a plurality of gas nozzles arranged in the axial direction of the optical fibers and being fixed in position during the heating process. The result is improved uniformity of heating, bonding and stretching.
Patent CA-2055287-C (CA)
Inventor: DURFEE LAVERNE R JR
IPC: B23B51/00
Filed: 1991-11-12
Granted: 1998-12-22
Abstract: A cutting tool consists of a cutting body extending from a front end to a rear end and defined by at least an exterior surface.  A shank is connected to the cutting body at the rear end.          The cutting body is provided with a slightly concave base surface positioned at the front end.  A pilot unit extends outwardly from the base surface and is defined by at least an outside surface thereof.   First and second surfaces extend inwardly from the exterior surface of the cutting body and intersect each other to form a flute.   The first surface, second surface and the flute extend into the pilot unit.  A cutting edge of the cutting tool is formed at the intersection of the first surface with the base surface of the cutting body.
Patent CA-2055646-C (CA)
Inventor: LUROIS PATRICK
IPC: B60C11/11
Filed: 1991-11-15
Granted: 1998-06-16
Abstract: Radial tyre tread for heavy goods vehicle comprising at least one groove in a broken circumferential line (1) and grooves in wide broken transverse lines (2) defining blocks, the wide transverse grooves (2) possessing walls whose inclination is constant and symmetrical over a mid zone (6) extending either side of the mid plane to a width of between 40 % and 75 % of the tread width and beyond said mid zone and as far as the edges possess walls whose inclination is variable and asymmetrical and two narrow circumferential lateral grooves (5) situated at a distance from the edges not exceeding one third of the tread width and possessing a depth of between 10 % and 70 % of the depth of the transverse grooves. 
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Patent CA-2060048-C (CA)
Title: Skin cream preparation for external use
Inventor: NAKAGAWA AKIRA
IPC: A61K47/00
Filed: 1990-07-27
Granted: 1995-11-07
Abstract: A W/O skin cream preparation for external use useful as a remedy for skin diseases which consists of a cream base comprising a diglycerol fatty acid ester and/or a sorbitan fatty acid ester having an HLB value of from 3 to 7, a polyvalent metal salt of a saturated or unsaturated fatty acid having 10 to 22 carbon atoms, an inorganic or organic acid salt, an oily phase component, and water together with an active ingredient.
Patent CA-2065665-C (CA)
Title: Preventing unauthorised use of a credit card
Inventor: HAYMANN FRANK VICTOR
IPC: G06F19/00
Filed: 1992-04-09
Granted: 1998-06-09
Abstract: ABSTRACT A method of validating a credit card includes the steps of issuing a credit cardto a holder, the card having an account number on it.  The holder is issued with a personal identification number (PIN). Before a transaction involving the credit card can be authorised, a validation transaction must be carried out in which the credit card is inserted into an electronic terminal and the PIN code is entered.  The PIN code and the account number are compared with information stored in a database, and only if the PIN code corresponds correctly to the account number is use of the credit card authorised.  The method prevents credit cards being used for transactions involving amounts greater than an unauthorised transaction limit applying to the card in question.
Patent CA-2071694-C (CA)
Title: Crystalline olefin polymers and copolymers in the form of spherical particles at high porosity
Inventor: GOVONI GABRIELE
IPC: C08F4/42
Filed: 1992-06-19
Granted: 1997-01-21
Abstract: Crystalline olefin polymers and copolymers in the form of spherical particles having porosity (expressed in percentage of voids) higher than 15%, with more than 90% of the pores having a pore diameter greater than one micron.   These polymeric particulate materials find many applications, including, e.g., the preparation of masterbatches containing significant quantities of additives and/or pigments.
Patent CA-2077104-C (CA)
Title: Reception of tdma digital data signal with compensation for channel variations
Inventor: OKANOUE KAZUHIRO
IPC: H04B3/04
Filed: 1992-08-28
Granted: 1998-08-18
Abstract: When time-division multiplexed digital data signals are to be demodulated, symbols in a time slot and symbols in the next time slot are stored in memory.  The digital data signal in each time slot includes a training sequence.  Channel estimators extract channel information regarding stored signals from the signals themselves as well as from the training sequences in succeeding time slots  and output the channel information to a channel information generator which combines the channel information from the channel estimators into channel information regarding the signal in the time slot.  A demodulator receives the combined channel information and the stored signals and demodulates the signal in the time slot.
Patent CA-2078321-C (CA)
Title: Multiplexing system for plural channels of electromagnetic signals
Inventor: HALL JOE
IPC: H01P7/06
Filed: 1992-09-15
Granted: 1998-04-07
Abstract: A multiplexing system combines a plurality of electromagnetic signals to propagate along a common path, preferably a square waveguide which can be connected to an antenna feed horn of square cross section which can support both circularly and linearly polarized electromagnetic waves. The system is operative with a plurality of sets o signal channels including a firstset of A-channel signals and a second set of B-channel signals. A circular polarizer connects with a first end of the waveguide. All of the A-channel signals are fed into an input port of the polarizer. The B-channel signals are coupled into the waveguide by a plurality of couplers located at positions arranged serially along the waveguide, individual one of the couplers operating at different ones of the B-channel frequencies for selectively coupling respective ones of said B-channel signals into the waveguide to propagate toward the second end of the waveguide. Each of the couplers has a rectangular waveguide and plural cylindrical cavity filters interconnecting a broad and a narrow wall of the rectangular waveguide with two contiguous walls of the square waveguide. Slotted apertures act to couple directionally the B-channel signal into the square waveguide to propagate towards the second end of the square waveguide. In one embodiment, an end of one filter contacts one waveguide, and an end of the second filter contacts the other waveguide. In a second embodiment, ends of both filters contact the square waveguide.
Patent CA-2079577-C (CA)
Title: Pedestal-mounted rocker arm with bushing
Inventor: ABBAS SHERKOH A
IPC: F01L1/18
Filed: 1992-09-30
Granted: 2003-11-04
Abstract: A rocker arm has a cold-formed, one-piece metal body of generally U-shaped cross section throughout most of its length.      The body has a bottom wall and two generally parallel side walls which extend upwardly therefrom and are structurally integral therewith. The rocker arm body has a recess at one end to engage an end of a push rod and a surface at the other end to engage an end of a valve stem. The side walls of the body have aligned circular openings therein through which a cylindrical bushing extends and is affixed to the side walls by brazing or the like. For a pedestal mount, the bushing has an elongate opening facing downwardly to receive a pedestal and has a large upper opening for clearance around a portion of the pedestal. Small oil reservoirs are formed between the bottom wall of the rocker arm body and edge portions of the bushing adjacent the large upper opening.
Patent CA-2083169-C (CA)
Title: Frette de cablage revetue partiellement
Inventor: CAVENEY JACK E
IPC: B65D63/00
Filed: 1992-03-17
Granted: 2001-01-02
Abstract: Attache de câble comportant un revêtement partiel (10) situé uniquement le long des bords latéraux de la courroie (18) de l'attache, ce qui laisse une partie médiane non revêtue s'étendant dans le sens de la longueur de la bande et s'introduisant dans un mécanisme de verrouillage situé au bout (12) de ladite attache (10). De ce fait, l'attache de câble comportant un revêtement sélectif présente des bords latéraux lisses et non abrasifs ne diminuant pas, de façon importante, l'efficacité de son mécanisme de verrouillage.
Patent CA-2084054-C (CA)
Title: Papermakers fabric with flat machine direction yarns
Inventor: LEE HENRY J
IPC: D21F7/08
Filed: 1991-03-15
Granted: 1996-06-04
Abstract: A papermakers fabric having a system of flat monofilament machine direction yarns (hereinafter MD yarns) which control the permeability of the fabric. The present weave provides for usage of high aspect ratio yarns as structural weave components. The system of MD yarns comprises upper and lower yarns which are vertically stacked. Preferably, the upper MD yarns define floats on the upper surface of the fabric and each upper MD yarn is paired in a vertically stacked orientation with a lower MD yarn. At least the upper MD yarns are flat monofilament yarns woven contiguous with each other to reduce the permeability of the fabric and to lock in the machine direction alignment of the stacking pairs of MD yarns. The stacked, contiguous woven ma-chine direction system provides stability and permits the MD yarns to have a relatively high aspect ratio, cross-sectional width to height, of greater than 3:1. A seam for the fabric comprised of loops from selected flat MD yarns is provided to render the fabric endless during use in papermaking.
Patent CA-2085670-C (CA)
Title: Molded case circuit breaker-process loop unit
Inventor: DOUGHERTY JOHN JAMES
IPC: H01H71/12
Filed: 1992-12-17
Granted: 2004-04-06
Abstract: An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the integrated protection unit cover from the environment. A combined overcurrent-trip actuator and accessory unit is either field-installed or factory-installed within the integrated protection unit. One such actuator-accessory responds to a process current loop signal upon command to interrupt circuit current to associated electrical equipment.
Patent CA-2086120-C (CA)
Title: Topical ophthalmic suspensions
Inventor: CHANDRASEKARAN SANTOSH KUMAR
IPC: A61Q19/00
Filed: 1991-06-25
Granted: 2001-09-04
Abstract: Lightly cross-linked polymer, of which at least about 60 % by weight of the polymer, has been prepared by suspension or emulsion polymerizing at least about 50 % by weight of a carboxyl-containing monoethylenically unsaturated monomer acrylic acid with from about 0.1 % to about 5 % by weight of a non-polyalkenyl polyether difunctional cross-linking agent having a dry particle size of not more than about 30 µm in equivalent spherical diameter are formulated with water and at least one ophthal-mic demulcent; or at least one ophthalmic demulcent and at least one ophthalmic vasoconstrictor, into aqueous suspensions in which the amount of polymer ranges from about 0.1 % to about 6.5 % by weight.