baber/WOPTO huggingface dataset:
Patent CA-2115814-C (CA)
Inventor: YOSHINO TERUO
IPC: H02M7/155
Filed: 1994-02-16
Granted: 1997-05-27
Abstract: A voltage-type self-commutated conversion system including a voltage-type self-commutated power converter with a plurality of anti-parallel circuits of a self-turn-off device and a diode.  DC terminals of the power converter are connected to DC bus lines of the voltage-type self-commutated conversion system.  The voltage-type self-commutated conversion system further includes a DC capacitor connected between the DC bus lines, a transformer connected between an AC system and AC terminals of the power converter and a control circuit for controlling the power converter.          The control circuit includes a gate control circuit for generating gate signals for determining conduction periods of the self-turn-off devices in the power converter, a first protection circuit for turning on the self-turn-off devices connected to positive side of the DC bus line in case of protective shutdown of the power converter and a second protection circuit for turning off the self-turn-off devices connected to negative side of the DC bus line in case of the protective shutdown of the power converter.
Patent CA-2121062-C (CA)
Inventor: CHECK JOSEPH A III
IPC: G02F1/19
Filed: 1994-04-12
Granted: 2007-01-09
Abstract: A light valve suspension contains a trialkyl trimellitate and/or trimesate and is used as such as the light modulating element of a light valve or droplets thereof are distributed in a light valve film used as the light modulating element of a light valve.
Patent CA-2128344-C (CA)
Inventor: SLACK WILLIAM E
IPC: C07C275/60
Filed: 1994-07-19
Granted: 2005-11-15
Abstract: The present invention relates to a process for the production of a allophanate-modified MDI which is a storage stable liquid at 25°C comprising (A) reacting (i) one equivalent of a diisocyanate and (ii) one equivalent of an aliphatic alcohol containing from 1 to about 36 carbon atoms or aromatic alcohol containing from 6 to 18 carbon atoms to form a diurethane of the diisocyanate, (B) reacting the product of (A) with 4,4'-diphenylmethane diisocyanate containing from 2 to 60% by weight 2,4'-MDI and less than 6% by weight of the 2,2'-MDI, in an amount sufficient to provide an allophanate having an isocyanate group content of about 12.0 to 30.0%.
Patent CA-2134008-C (CA)
Inventor: SUZUKI KATSUMI
IPC: H01L39/02
Filed: 1994-10-21
Granted: 1999-04-13
Abstract: An antenna array is adapted to handle an increased power of high-frequency signal. The antenna array includes a substrate, a plurality of unit wiring patterns, each consisting of a superconductor film wiring pattern formed on a plane extending in common with a major plane of the substrate and a non-linear elementformed within each unit wiring pattern. The non-linear element is connected at one end to an antenna pattern for radiating and absorbing a high-frequency electromagnetic field and is connected at the other end to a signal transmission path pattern. Each of the unit wiring patterns is connected to a signal detection means through a plurality of signal transmission path patterns.
Patent CA-2136334-C (CA)
Title: Seats for swings
Inventor: BRADY DAVID FRANK
IPC: A47C7/16
Filed: 1993-05-21
Granted: 2001-08-07
Abstract: A seat for a child's swing is disclosed. The seat is of the type comprising a plate-like substantially rigid member (1) to bear the weight of a user sitting on the seat, and resilient polymeric material (2) secured to the plate-like member (1), the resilient po-lymeric material (2) extending beyond the outline of the plate-like member (1) to form a border (30) around the edges of the plate-like member, and forming a peripheral dependent skirt (40) of substantial thickness. To achieve greater safety in use, the border (30) includes a hinge-like portion of the resilient material (2), the plate-like member (1) in the region of the hinge-like portion is configured to provide room for the dependent skirt (40) to hinge beneath the plate-like member (1), and in an impact between the edge of the seat adjacent the hinge-like portion and an object, the skirt (40) is progressively deformed and forced to hinge inwards against the resilience of the hinge-like portion.
Patent CA-2144311-C (CA)
Inventor: CONNOR DANIEL STEDMAN
IPC: C07C233/18
Filed: 1993-09-10
Granted: 1998-09-29
Abstract: Polyhydroxy amines reacted with fatty acid esters yield polyhydroxy fatty acid a mide surfactants, such as the C1-C17 fatty N-methyl glucamides, which may be contaminated with secondary amines. Such amine s are acylated by a reaction with acetic anhydride. The resulting "clean" polyhydroxy fatty acid amide surfactants are preferred for use in the presence of oxidants, especially in the formulation of modern, colorless liquid detergents.
Patent CA-2148074-C (CA)
Title: Cosmetic or pharmaceutical composition for topical use
Inventor: VOULTOURY ROBERT
IPC: A61K8/00
Filed: 1995-04-27
Granted: 1999-07-13
Abstract: The invention relates to a cosmetic or pharma-ceutical composition for topical use, comprising lipid vesicles obtained by crushing seeds of oleaginous plants, emulsification in an aqueous phase and filtration.
Patent CA-2148374-C (CA)
Inventor: ALDERLIESTEN LEENDERT
IPC: A23L1/308
Filed: 1993-10-28
Granted: 1998-11-17
Abstract: A spread containing one or more fibre ingredients, wherein: (a) the total level of fibre ingredients is 18 wt% or more; (b) the fibre ingredient is a non-starch polysaccharide having an average molecular weight of more than 800; (c) the fibre ingredient is a non-starch polysaccharide wherein the sugar units are predominantly connect ed via links which are non-degradable by the enzymes secreted by the human body; (d) the spread has a stress strain relation with a maximum stress occurring at a strain ~max of 0.001 to 0.3, and a stress .delta.max at a strain ~ max of 0.01 to 100 k Pa and a ratio of the plastic stress .delta.p to .delta.max (.delta.p/.delta.max) of 0.1 to 0 95.
Patent CA-2149787-C (CA)
Title: Instrument de marquage
Inventor: TALBOT JOHN MITCHELL
IPC: B43K8/24
Filed: 1994-01-13
Granted: 1999-02-16
Abstract: Un instrument de marquage, par exemple, un marqueur à pointe en feutre, possède une pointe (4) de marquage rétractable supportée par l'élément marqueur (5) logé dans le cylindre, et une membrane d'enroulement (10) connectée entre l'élément marqueur et le cylindre afin de former une enveloppe hermétique autour de la pointe (4) lorsque celle-ci se rétracte. Au moment où la pointe se rétracte, l'élément marqueur tourne pour enrouler la membrane et fermer l'enveloppe.
Patent CA-2150723-C (CA)
Title: Gaming machine and coupons
Inventor: BITTNER HAROLD G
IPC: G07F17/32
Filed: 1993-11-29
Granted: 2004-03-16
Abstract: A gaming machine (200) and game coupons (100) which allow an operator to redeem winning game coupons by inserting them directly into the gaming machine rather than by taking them to a cashier. The game coupons have machine-readable prize codes (114, 120) which represent a number of prize game credits. The gaming machine includes a bill validator (202) for accepting currency (244) and winning game coupons (248) from the operator. It also includes a code reader (224) for reading the coupon prize codes as the coupons are inserted. The gaming machine issues game credits to the player depending on the prize codes of the submitted game coupons. The gaming machine also incorporates a fraud prevention scheme. Each winning coupon is coded with a unique coupon identification code. The code reader records the coupon identification code of each winning coupon as it is submitted. Detected duplicate coupon identification codes are rejected.
Patent CA-2153481-C (CA)
Title: Multi-layered polymer based film structure for medical grade products
Inventor: ROSENBAUM LARRY A
IPC: A23L7/196
Filed: 1994-11-16
Granted: 2005-02-08
Abstract: A multiple layer structure comprising a skin layer composed of a polypropyle ne copolymer with styrene ethylene-butene styrene block copolymer within a rang e of 0-20 % by weight skin layer, and, a radio frequency ("RF") susceptible layer adhered to the skin layer. The RF layer has a first component of a propylene based polymer, a second component of a nonpropylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent.
Patent CA-2154333-C (CA)
Inventor: MITSUZUMI HITOSHI
IPC: C12P1/04
Filed: 1995-07-20
Granted: 2009-10-06
Abstract: Disclosed is a recombinant thermostable enzyme which has a molecular weight of about 54,000-64,000 daltons and a pI of about 5.6-6.6, and releases trehalose from non-reducing saccharides having a trehalose structure as an end unit and a degree of glucose polymerization of at least 3. The enzyme has a satisfactorily-high thermostability, i.e. it is not substantially inactivated even when incubated in an aqueous 0 solution (pH 7.0) at 85° C for 60 min, and this facilitates the production of trehalose on an industrial scale and in a satisfactorily-high yield.
Patent CA-2157895-C (CA)
Title: Interactive system for telephone and video communication including capabilities for remote monitoring
Inventor: KATZ RONALD A
IPC: H04N21/2187
Filed: 1994-03-11
Granted: 2004-05-18
Abstract: An interactive system for telephone and video communication between a plurality of widely distributed, remote locations and a central location is disclosed. The interactive system may be configured to provide remote monitoring capabilities, scheduling and processing capabilities, commercial product routing and video vending. In one embodiment, the interactive system selectively interfaces members of plural groups, as buyer groups and vendor groups, for video communication through a dial-up telephone system, to analyze and compile data, schedule appointments, implement conferences, consummate sales and the like. The interactive system comprises a telephonic interface apparatus for interfacing remote telephonic terminals of the dial-up telephone system identified with the members of plural groups, a video recording unit for recording and playing video transcriptions, a storage memory for storing data on the members, including telephonic terminal numbers and area-of-interest codes and a control computer to selectively interconnect the video recording unit with the remote telephonic terminals through the telephonic interface apparatus to record and receive video communication.
Patent CA-2159312-C (CA)
Inventor: SATO MASANORI
IPC: B66C1/12
Filed: 1990-09-29
Granted: 1997-05-06
Abstract: An automatic lifting angle adjuster for lifting wire rope having expandable arm members 12 which are connected to an expanding driving means 11 at the center thereof and fixing means 21 which is attached to the top end portion of each arm member 12, and provided with rope-fixing member 23 each of which fixes a wire rope 20, rope guide members 24 through each of which the wire rope 20 passes and tension springs 25 each of which connects each of them,  wherein the rope guide  member 24 is rotated inside and outside of arm member 12 for hooking a load to be lifted and for removing by itself from the transported load.  And, an automatic lifting angle adjuster for lifting wire rope  having an expanding  driving means 11 comprising a sliding  member 15 which is compressed by a central compression spring 17, a receiving member 18, and a vertical shaft 14  which connects these  members, and  allowing a simple  construction and small  height in total size.
Patent CA-2169202-C (CA)
Inventor: MA FRANK MAN SHEUNG
IPC: B27K3/15
Filed: 1996-02-09
Granted: 2002-05-07
Abstract: A method of treating wood by impregnation of the wood with wood-treating-compositions containing compounds which contain elements selected from copper, chromium and arsenic (CCA) and oxyalkylene polymer additives provides improved properties to the treated wood, better control of oxyalkylene polymer distribution, and reduced leaching of the CCA.
Patent CA-2169660-C (CA)
Title: Interstitial fluid collection and constituent measurement
Inventor: ERICKSON BRIAN J
IPC: A61B5/15
Filed: 1994-10-12
Granted: 2005-12-06
Abstract: An apparatus (10) and method is disclosed for obtaining and measuring constituents in a sample of body fluid. The apparatus (10) includes a member (12) which is sized to penetrate into at least the dermal layer (24) of skin to collect a sample of body fluid located within the dermal layer (24).
Patent CA-2174103-C (CA)
Inventor: BEIER SCOTT B
IPC: B01D29/01
Filed: 1994-10-18
Granted: 2002-04-23
Abstract: A fluid filter (10) includes a first batting (12) of high loft, non-woven, fibrous fluid-permeable material with a plurality of openings (14) formed through the thickness thereof across the length and width of the batting.  A second layer (16) of high loft, non-woven, fluid-permeable fibrous batting is attached to the first layer (12) and extends across the entire length and width of the first layer (12).  Preferably, the first and second layers are adhered together to form a single integral fluid filter (10).  In the preferred form of the invention, the openings in the first batting have side walls (48) which are perpendicular to the upper surface (36) of the batting, such that fluid flow impacts on the upper surface of the batting, rather than directly impacting on the side walls.
Patent CA-2189165-C (CA)
Title: Retroviseur non deformant a vision de l'angle mort
Inventor: UNG LY WENG
IPC: B60R1/06
Filed: 1995-07-31
Granted: 1999-04-06
Abstract: Rétroviseur non déformant à vision de l'angle mort, utilisant un miroir prismatique triangulaire (30) placé à proximité du conducteur (D) et lui permettant de voir sans distorsion la zone de l'angle mort. Ledit miroir présente trois surfaces planes (31, 32, 33) dont la postérieure (31) est réfléchissante. De ce fait, l'image pénétrant par l'une des surfaces antérieures (p. ex. 32), apparaît sur l'autre surface antérieure (p. ex. 33), et le miroir, s'il est correctement monté, fournit au conducteur de la zone une vision nette de la zone d'angle mort.
Patent CA-2193338-C (CA)
Title: Switchable power supply with electronically controlled output curve and adaptive hot start
Inventor: GEISSLER STEVEN J
IPC: H02M3/337
Filed: 1996-12-18
Granted: 2001-03-13
Abstract: A welding power supply that includes a switchable power source, including at least one switch and at least one capacitor is disclosed.  The converter includes a switching circuit including an enable input.  A voltage sensing circuit that determines the earliest safe switching time of the switch is provided.  The safe switching time is the time that will prevent a peak voltage on the capacitor from exceeding a predetermined threshold for a next cycle of the converter.  The voltage sensing circuit provides an enable signal to the enable input when the earliest switching time has passed, to enable the switching circuit.  A pair of welding output terminals connected to the switchable power source receives the output.  A controller including a curve shaper, for providing a constant current output in the welding range is also disclosed.  The controller also provides an adaptive hot start that provides varying amounts of energy in response to the welders skill.
Patent CA-2198823-C (CA)
Title: Method for controlling crystal morphology of inulin
Inventor: PRESTON LISA ANNE
IPC: A23L29/244
Filed: 1997-02-28
Granted: 2005-02-22
Abstract: A method for controlling and/or modifying the morphology of inulin is provided. Using this method, inulin can be produced having, as desired, a predominately needle-like morphology or a predominately obloid-type morphology.
Patent CA-2204487-C (CA)
Inventor: TOOKER JAMES MORRIS
IPC: H04L12/56
Filed: 1997-05-05
Granted: 2004-08-03
Abstract: In a packet network, message packets (130) are comprised of vacant or unused bits for future system enhancements or for remedying unknown design oversights or utilizing vacant portions of fixed length data packets.      Furthermore, message packets (130) comprise a message type identifier distinguishing message architecture. A transmit and receive packet network node (100) maintains an unused bit catalog (125) listing vacant or unused bits of particular message packet types. When a message packet type having vacant or unused bits is detected propagating through the packet network, background data is retrieved from a transmit background data queue (115) and interleaved into such message packets to form enriched message packets (130') for transportation through the packet network. Receiving packet network nodes (100) detect enriched message packets (130') and extract and buffer the background data. A lower data-rate background data transfer mechanism is maintained without impacting the performance of the existing packet network.
Patent CA-2207064-C (CA)
Inventor: BALL ROBERT J
IPC: B23C5/26
Filed: 1995-11-08
Granted: 2001-01-09
Abstract: A front-loading rotary ring cutter for face milling or face hobbing processes wherein the cutter ring (40) is secured to the cutter head (2) by means which eliminate the need to remove the entire cutter assembly from the spindle of a machine tool when changing cutter rings. Preferably the cutter ring (40) includes a radially inward extending base portion (44) through which mounting screws (62) may pass to engage the cutter head (2) for securing the cutter ring (40) to the cutter head (2). The cutter assembly may also include an adapter plate (65) for attaching the rotary cutter to a machine spindle.
Patent CA-2207248-C (CA)
Inventor: OLSON OGDEN R
IPC: A47C7/18
Filed: 1997-06-06
Granted: 2002-08-20
Abstract: A form for constructing a seat or back cushion of a padded chair comprises a rigid unitary body member having a central relatively flat portion between two marginal edges formed with updating ridges. The ridges define a central depressed portion which is capable of receiving layers of foam. A separate foam layer covers the central layers of foam and wraps over and around the edge ridges to pad the ridges. The ridges thereby serve to reduce precompression of the central foam layers after the form is finished with a covering of upholstery. A chair having cushions with enhanced softness is thereby achieved.
Patent CA-2208828-C (CA)
Inventor: BRAUER WOLFGANG
IPC: C08G18/10
Filed: 1997-06-25
Granted: 2006-10-31
Abstract: The present invention relates to a process for the continuous production of thermoplastically processable polyurethanes having improved processing behaviour, wherein in a multistep reaction A) one or more linear hydroxyl-terminated polyols a) having a molecular weight of from 500 to 5000 are mixed continuously with a proportion of an organic diisocyanate b) in an NCO:OH ratio of from 2.0:1 to 5.0:1, in a mixing unit at high shear energy, B) the mixture prepared in step A) is reacted continuously to form an isocyanate-terminated prepolymer in a reactor at temperatures of >  120°C, until a conversion of > 90%, referred to component a), is achieved, C) the prepolymer prepared in step B) is mixed with the remainder of component b), an NCO:OH ratio of from 2.05:1 to 6:1 being established overall in steps A) to C) and an NCO:OH ratio of 0.9 to 1.1 being established when all the components of steps A) to F) are included, D) the mixture prepared in step C) is cooled to a temperature of <  190°C, E) the mixture obtained in step D) is mixed continuously and intensively for a maximum of 5 seconds with one or more diol and optionally triol and/or diamine chain extenders c) having a molecular weight of from 60 to 500 and F) the mixture obtained in step E) is reacted continuously in a different reactor from that used in step B), to form the thermoplastic polyurethane.
Patent CA-2210376-C (CA)
Inventor: ITO AKIHIKO
IPC: B41J25/316
Filed: 1997-07-22
Granted: 2002-10-01
Abstract: A printer comprises a frame, a platen supported by the frame for undergoing rotation, and a printing head for printing on a recording medium fed between the platen and the printing head. The printing head is supported by the frame for undergoing pivotal movement into and out of pressure contact with the platen. A biasing member is mounted for movement between a first position in which the biasing member is in a neutral, unstretched state, and a second position in which the biasing member is in stretched state. The biasing member has a first end integrally connected to the printing head and a second end opposite the first end. An operation member is integrally connected to the second end of the biasing member and is supported by the frame for undergoing pivotal movement between a first position and a second position. When the operation member is pivoted to the first position, the biasing member is moved to the first position and the printing head is pivoted out of pressure contact with the platen. When the operation member is pivoted to the second position, the biasing member is moved to the second position and the printing head is pivoted into pressure contact with the platen.
Patent CA-2211258-C (CA)
Inventor: GORIAN IZRAIL S
IPC: G06V30/162
Filed: 1996-01-25
Granted: 2000-12-26
Abstract: A method and apparatus for thresholding gray-scale images containing text as foreground and dirt, colors, noise and the like as background. The method is adaptive in nature. The method uses multiple sets of thresholding process parameters in a contrast-based histogram evaluation to produce multiple candidate thresholded binary images. The method automatically selects the highest quality binary image, that is, the binary image that best represents text in the foreground, from among the multiple candidate binary images. The apparatus for implementing the method is a pipeline processor for highest speed.
Patent CA-2220832-C (CA)
Title: A system and method for managing packet-switched connections
Inventor: MACCALLUM LOUISE A
IPC: H04L12/56
Filed: 1997-11-12
Granted: 2001-05-29
Abstract: A system and method for managing connections between one or more local terminals and one or more remote systems over a packet-switched network is disclosed.  The invention includes a gateway computer that forms a bridge between the local terminals and the one or more host systems, the gateway and the local terminals including computer software instructions for embedding and filtering special connection identification information in each transaction request. The local terminals embed connection identification information into each request packet requesting a connection to a remote host system, and the gateway filters this information and verifies that the gateway and local terminal(s) are synchronized. The gateway then manages the communication to the host system using the native protocol of the host, thereby minimize communication over the packet-switched network. By synchronizing the connection attempts of the local terminals to the gateway, problems associated with connecting multiple transaction-generating terminals to one or more host systems via a packet-switched network are minimized.
Patent CA-2221984-C (CA)
Inventor: JADESJO GUNILLA
IPC: C11D3/36
Filed: 1997-11-24
Granted: 2004-01-27
Abstract: The invention relates to a composition suitable for cleaning disinfection and bleaching comprising an acidic aqueous solution of hydrogen peroxide, a surfactant, and a phosphonic acid based complexing agent selected from biodegradable 1-aminoalkane-1,1-diphosphonic acids, or salts thereof, of the formula: (See Formula I) wherein R1 is selected from hydrogen, C1-C4 alkyl and phenyl; R2 and R3, independently from each other, are selected from hydrogen, C1-C22 alkyl, C5-C6 cycloalkyl, phenyl, C7-C18 alkylphenyl, C7-C18 phenylalkyl, a C1-C10 alkanol radical, a carboxy alkyl radical having up to 10 carbon atoms, wherein R2 and R3 together with the nitrogen atom can form a piperidino, pyrrolidino or a morpholino group; and X1 to X4, independently from each other, are selected from hydrogen, alkali metal and ammonium. The invention also relates to use of such a composition for disinfection, bleaching, removal of stains from textiles, or removal of lime deposits.