baber/WOPTO huggingface dataset:
Patent CA-2221327-A1 (CA)
Title: Removable seat cushion system
Inventor: ZAMMIT JOHN
IPC: A47C31/11
Filed: 1998-01-21
Abstract: A removable seat cushion system for movable furniture includes a seat cushion generally in the shape of a rectangular parallelepiped having a bottom surface, a rear top edge, and a front bottom edge.  Attached to the seat cushion is a rear tab for securing the seat cushion to the frame, the rear tab extending from the seat cushion adjacent the rear top edge of the seat cushion, and having a free edge and a bottom surface.          Also attached to the seat cushion is a front tab for securing the seat cushion to the frame, the front tab extending from the seat cushion adjacent the front bottom edge of the seat cushion, and having a free edge and a rear surface.  Attached to the rear and front tabs are fasteners for securing the tabs to the frame.
Patent CA-2224557-A1 (CA)
Title: Absorbent article
Inventor: DOKAN AKI
IPC: A61F13/53
Filed: 1996-06-03
Abstract: An absorbent article comprising a liquid pervious topsheet (4), a liquid impervious backsheet, and an absorbent core (8) surrounded by the topsheet (4) and the backsheet is improved in such a manner as to be deformed in the width direction without being distorted inappropriately when undergoing a widthwise compressive force. The absorbent core (8) includes a central core piece (12) and a pair of side core pieces (14) disposed on both sides of the central core piece; or includes a central core portion, a pair of connecting portions extending downwardly from the opposite side edges of the central core portion, and a pair of side core portions extending widthwise outwardly from the connecting portions. When a widthwise compressive force is exerted, the side core pieces or the side core portions are displaced widthwise inwardly and caused to sink below the central core piece or the central core portion.
Patent CA-2225008-A1 (CA)
Title: Thermostat reset with additional electrical switch
Inventor: JACKSON MARK D
IPC: H01H37/70
Filed: 1997-12-17
Abstract: An electric coffee maker having a hot water heater,  a resettable  thermostat,  a  mechanism  for  resetting  the thermostat, and an electrical switch connected in series with the thermostat.  The resetting mechanism has a user actuated button movably mounted to a housing of the coffee maker and a lever connected to the button.  The lever moves a plunger of the thermostat when the button is moved by a user.  The switch has an actuator located under a portion of the button that is moved by the button, to open the switch, when the button is moved towards a thermostat reset position.
Patent CA-2225232-A1 (CA)
Inventor: HONKASALO HARRI
IPC: H04B7/005
Filed: 1996-07-11
Abstract: The invention relates to methods, transmitters and transceivers for transmitting a user signal, particularly a speech or video signal on a circuit-switched connection in a cellular radio network when the bit rate of the user signal varies during transmission. The transmitter comprises a source (2) of a variable bit rate user signal, such as a speech or video encoder, and a channel encoder (3) and a radio transmitter unit (7) having an adjustable transmitting power. The capacity allocated for the circuit-switched connection corresponds to the maximum rate of the user signal. The channel encoder (3) has, for the maximum bit rate of the user signal, a first, relatively the least efficient channel coding or no channel coding at all, and for each lower bit rate of the user signal a relatively more efficient channel coding that utilizes the capacity of the circuit-switched connection, released by the lower transfer rate, for improving the interference tolerance of the connection. The transmitting power of the radio transmitter unit depends on the channel coding used by the channel encoder so that the transmitting power is reduced with the increased efficiency of the channel coding, while the bit-error-rate remains substantially constant. This results in a lower average power level and thus in a reduced interference level in the cellular network.
Patent CA-2226158-A1 (CA)
Inventor: COHN ALAN R
IPC: B60P1/44
Filed: 1997-12-30
Abstract: A platform-type wheelchair lift for mounting in the stairwell of a vehicle, suchas a bus or train. The wheelchair lift includes a platform frame that is movable from a retracted position in which it is stowed underneath the vehicle to an extended position in which it extends out from the side or back of the vehicle. A wheelchair platform is movably coupled to the platform frame by a parallelogram linkage that allows thewheelchair platform to move between a lowered and a raised position. The wheelchair platform includes foldable outer, side, and inner wheelchair barriers that prevent a wheelchair from moving off of the wheelchair platform during operation of the wheelchair lift. The outer and inner wheelchair barriers are capable of absorbing part of the energy of an impact between a wheelchair and the barriers and in ways cause barriers to fold out.
Patent CA-2226880-A1 (CA)
Title: Cyclosporin derivatives with anti-hiv effect
Inventor: LUECHINGER JEAN M
IPC: C12P21/04
Filed: 1996-07-17
Abstract: The invention concerns new cyclic peptides of general formula (I) in which the letters A to K signify residues of the following amino acids: A a substituted homothreonine of the general formula (II): R1-CH2CH(CH3)-CH(OH)-CH(NHCH3)-COOH in which R1 is n-propyl or propenyl in which the double bond is preferably in the trans configuration, B .alpha.-aminobutyric acid, valine, norvaline or threonine, C a D-amino acid of the general formula (III): CH3NH-CH(R)-COOH in which R is straight-chain or branched-chain C2-C6 alkyl, alkenyl or alkinyl, whereby these groups may be substituted by hydroxy, amino, C1-C4 alkylamino, C1-C4 dialkylamino, alkoxy or acyloxy, COOR2 or CONHR2 in which R2 is straight-chain or branched-chain C1-C4 alkyl, X-R3 in which X is O or S and R3 is straight-chain or branched-chain C1-C4 alkyl, alkenyl or alkinyl and, when X is S, R3 may also be aryl or heteroaryl, halogen, preferably fluorine, cyano, CHR4R5 in which R4 is hydrogen, methyl, ethyl or phenyl and R5 is hydrogen, hydroxy, halogen (preferably fluorine), amino, C1-C4 alkylamino, C1-C4 dialkylamino, acyloxy (preferably acetyloxy), tert-butoxycarbonylamino-ethoxy-ethoxy-acetyloxy or alkoxycarbonyl (preferably butoxycarbonyl), D is N-methyl-gamma-hydroxyleucine or N-methyl-gamma-acetyloxyleucine, E is valine, F, I and J are each N-methylleucine, G is alanine, H is D-alanine or D-serine and K is N-methylvaline. The invention also concerns the preparation of such peptides and their use in the prevention of infection by the human immunodeficiency virus (HIV).
Patent CA-2228070-A1 (CA)
Title: Anchor for guard rail system on structural grating floors
Inventor: WEBER BERT
IPC: E04H12/22
Filed: 1998-01-26
Abstract: An anchor system for removably mounting a stanchion to a grating floor formed from spaced grating members comprising a plate having upper and lower surfaces, a mounting location on the upper surface for releasably supporting the stanchion, and at least one locking member extending from the lower surface to releasably lock the plate to the grating floor.  The locking member is formed with an extension adapted for movement from a position that allows the extension to be introduced between and below the spaced grating member to a position in which extension engages beneath one or more grating members to lock the plate onto the grating floor.
Patent CA-2228097-A1 (CA)
Title: Noise cancelling method and apparatus for the same
Inventor: IKEDA SHIGEJI
IPC: H04B1/10
Filed: 1998-01-28
Abstract: A noise canceler of the present invention is of the type including an adaptive filter for generating a pseudo noise signal, subtracting the pseudo noise signal from a received signal to thereby output an error signal, and sequentially correcting the filter coefficient of the filter in accordance with the error signal. A second adaptive filter produces a second pseudo noise signal and a second error signal. A first and a second power mean circuit each calculates the signal power of the respective signal. A divider performs division with the resulting two kinds of signal power, so that a signal-to-noisepower ratio is estimated. A comparator compares the estimated signal-to-noise power ratio and a delayed version of the same and outputs greater one of them as an extended signal-to-noise power ratio. A step size output circuit corrects,based on the extended signal-to-noise power ratio and reference noise signal power output from a power mean circuit, a step size used to adaptively vary the filter coefficient of the first adaptive filter.
Patent CA-2228909-A1 (CA)
Inventor: SHIBAMORI MASAHUMI
IPC: A61K38/21
Filed: 1996-07-23
Abstract: A remedy for Coxsackie virus B infection for which there has been no efficacious therapeutic means, which contains .gamma. interferon as the active ingredient.
Patent CA-2229735-A1 (CA)
Title: Process for nitrating diphenyl ether compounds
Inventor: MUXWORTHY JAMES PETER
IPC: C07C205/45
Filed: 1996-08-06
Abstract: A process for the preparation of a compound of general formula (I) wherein R1 is hydrogen or C1-C6 alkyl, C2-C6 alkenyl or C2-C6 alkynyl (any of which may optionally be substituted with one or more substituents selected from halogen and OH) or COOH, COH, COOR4, COR6, CONR4R5 or CONHSO2R4; R4 and R5 are each independently hydrogen or C1-C4 alkyl optionally substituted with one or more halogen atoms; R6 is a halogen atom or a group R4; R2 is hydrogen or halo; R3 is C1-C4 alkyl, C2-C4 alkenyl or C2-C4 alkynyl, any of which may optionally be substituted with one or more halogen atoms, or halo; the process comprising reacting a compound of general formula (II) wherein R1, R2 and R3 are as defined for general formula (I); with a nitrating agent comprising nitric acid or a mixture of nitric and sulphuric acids in the presence of an organic solvent and in the presence of acetic anhydride, characterised in that the molar ratio of acetic anhydride to compound of general formula (I) is from about 1:1 to 3:1.
Patent CA-2229809-A1 (CA)
Title: Twisting-cylinder display
Inventor: CROWLEY JOSEPH M
IPC: G02B26/02
Filed: 1997-06-25
Abstract: A gyricon or twisting-particle display based on nonspheroidal (e.g., substantially cylindrical) optically anisotropic particles disposed in a substrate. The particles can be bichromal cylinders, preferably aligned parallel to one another and packed close together in a monolayer. A rotatable disposition of each particle is achievable while the particle is thus disposed in the substrate; for example, the particles can already be rotatable in the substrate, or can be rendered rotatable in the substrate by a nondestructive operation performed on the-substrate. In particular, the substrate can be made up of an elastomer that is expanded by application of a fluid thereto so as to render the particles rotatable therein. A particle, when in its rotatable disposition, is not attached to the substrate. The close-packed monolayer configuration of particles provides excellent brightness characteristics and relative ease of manufacture as compared with certain other high-brightness gyricon displays. The substrate containing the cylinders can be fabricated with the swelled-elastomer techniques known from spherical-particle gyricon displays, with a simple agitation process step being used to align the cylinders within the sheeting material. Techniques for fabricating the cylinders are also disclosed.
Patent CA-2230242-A1 (CA)
Title: Apparatus for transferring objects from a first to a second conveyor
Inventor: PERSSON AGNE CLAES
IPC: A22C25/08
Filed: 1996-08-21
Abstract: An apparatus and a method for transferring an irregular stream of objects from a first conveyor (10) to a second conveyor (12) in such a way that the objects form a regular stream of objects on the second conveyor (12). The first conveyor (10) operates with a higher conveying speed than the second conveyor (12) and for some distance in parallel with the second conveyor. A deflection means (15; 18;  32) for movable deflection of objects (14) between the two conveyors (10, 12) is provided with means (21-25; 34) for synchronization with the movement of the second conveyor (12). The objects (14) being conveyed upon the first conveyor (10) are deflected from this conveyor over to the second conveyor (12) at various points along the above mentioned distance, depending upon how closely the objects are transported upon the first conveyor (10).
Patent CA-2231228-A1 (CA)
Title: Atm transport system
Inventor: CHRISTIE JOSEPH MICHAEL
IPC: H04J3/12
Filed: 1996-09-03
Abstract: An ATM transport system (105, 110, 115) transports user information from a continuous signal transport system (100). The ATM transport system (105, 110, 115) uses telecommunications signaling associated with the continuous signals to determine if the continuous signals are transporting any user information.  If so, ATM cells containing user information are generated and transmitted. An ATM interworking multiplexer (105) and a processor (110) are included in the system.
Patent CA-2232383-A1 (CA)
Title: Compositions detergentes
Inventor: JONES LYNDA ANNE
IPC: C11D3/386
Filed: 1996-09-13
Abstract: L'invention concerne des compositions détergentes à base de constituants détergents classiques, caractérisées en ce qu'elles renferment des enzymes de type polygalacturanase sensiblement dépourvues d'autres enzymes pectiques. De préférence, on incorpore l'enzyme polygalacturanase à la composition dans une proportion qui représente de 0,0001 à 2 % en poids d'enzyme actif, cela par rapport à la composition.
Patent CA-2232977-A1 (CA)
Title: Speech signal coder
Inventor: OZAWA KAZUNORI
IPC: G10L19/113
Filed: 1998-03-23
Abstract: In a speech signal coder according to the present invention, spectral or pitch parameters of a speech signal are quantized, and impulse responses thereof are predicted by using a filter constituted thereby. An orthogonal transform of the speech signal or a signal derived therefrom or the impulse responses or signals derived therefrom is obtained, and the result is entirely or partly quantized to obtain a plurality of pulses. More preferably, these pulses are retrieved recurrently by also using codevectors retrieved from a codebook or collectively quantizing their senses or amplitudes. Optimization is achieved in this way.
Patent CA-2233053-A1 (CA)
Title: High efficiency hydronic heating system
Inventor: MAYER KARL W
IPC: F24H8/00
Filed: 1998-03-25
Abstract: An improved high efficiency space heating system that extracts latent and sensible heat from exhaust gases to warm incoming combustion air. The system includes a heat exchanger having an exhaust gas compartment and an adjacent water chamber. A series of corresponding baffles within the exhaust gas compartment and the waterchamber define a counter cross-flow heat transfer pattern. The heat exchanger isfabricated from cast aluminum in a process that utilizes at least two cores suspended within a mold. The cores form the exhaust gas compartment and the water chamber and thebaffles disposed therein. At least one core includes one or more support rods and a series of posts for supporting and stabilizing the core within the mold during the casting process. The system further includes a draft fan preferably located at the discharge end of a heat recovery unit in order to generate a negative pressure in the system. The heat recovery unit is used to extract the latent and sensible heat from the exhaust gases. A control apparatus governs the operation of the system in response to signals received from a thermostat disposed in the space being heated. The control apparatus includes a two-stage fuel valve which may be moved between a high fuel flow position and a normal fuel flow position. The control apparatus initially starts the system with the valve at the high fuel flow position in order to ensure reliable ignition. Thereafter, the valve is moved to the normal fuel flow position for continued operation.
Patent CA-2234683-A1 (CA)
Inventor: THURMOND JENNIFER MARIE
IPC: A61P31/04
Filed: 1996-11-06
Abstract: La présente invention concerne un procédé de production, dans une cellule bactérienne, de .beta.-caséine humaine recombinante et phosphorylée portant de 3 à 5 phosphates. On procède pour cela en utilisant un unique vecteur contenant en tandem, d'une part la séquence nucléotide codant la .beta.-caséine, et d'autre part une séquence codant l'enzyme CKII .beta..alpha. qui est capable de phosphoryler la .beta.-caséine humaine.
Patent CA-2235258-A1 (CA)
Inventor: MATHIS WILLIAM DEAN
IPC: A01N47/14
Filed: 1998-04-21
Abstract: Stable dispersions of certain pesticides in agricultural oil are provided. In particular, the dispersions include a particulate pesticide, agricultural oil, and an agricultural oil-soluble polymer, the polymer in some instances containing a copolymerized polar monomer. Also provided is a method for forming the stable dispersion.
Patent CA-2235394-A1 (CA)
Title: Isolats antiviraux pouvant etre obtenus a partir de sangsues
Inventor: VOERMAN GERARD
IPC: C07F7/10
Filed: 1996-11-13
Abstract: La présente invention concerne des procédés, des substances et des compositions obtenues à partir de sangsues, de bactéries qui leur sont associées ou de combinaisons des unes et des autres, dans le but de prévenir les infections rétrovirales de cellules hôtes. Plus particulièrement, l'invention concerne l'inhibition de la réplication du VIH. Par conséquent, l'invention fournit des procédés et des substances destinés au traitement et à la prévention de l'infection par le VIH et du SIDA. Les composés ou mélanges s'obtiennent par des techniques d'extraction par solvants et des opérations de séparation, et ils ont été essayés de la manière suivante. Deux isolats de VIH formant du syncytium, le VIHAms55 et le VIHAms37, ont été inoculés dans PBMC et dans des monocytes. Pendant 14 jours, le VIH a produit des effets cytopathiques (ECP) (formation de syncytium) et la production de virus, telle qu'elle était déterminée par un ELISA de capture p24, a été surveillée après addition d'extraits de têtes de sangsues. Le résultat de ces essais avec la ou les substances inhibitrices de VIH partiellement purifiées est le suivant: trois fractions ont inhibé à la fois la formation de syncytium et l'antigène p24 à 100 %, pour une concentration de: 0,067 µM, 0,5 µMand 0,17 µM, respectivement, dans les deux isolats de VIH. Une quatrième fraction a subi une série de dilutions et elle a inhibé aussi bien les ECP que l'antigène p-24 à 100 % à partir de 0,5 µM, dans les deux isolats de VIH.
Patent CA-2242676-A1 (CA)
Title: Athermal optical device
Inventor: WEIDMAN DAVID L
IPC: G02B6/122
Filed: 1996-08-07
Abstract: An athermal optical device and a method for producing the device, such as an athermal optical fiber reflective grating (20), are described. The athermal optical fiber reflective grating device (20) comprises a negative expansion substrate (22), an optical fiber (24) mounted on the substrate (22) surface, and a grating (26) defined in the optical fiber (24). The method for producing the athermal optical fiber reflective grating (20) device comprises providing a negative expansion substrate (22), mounting an optical fiber (24) with at least one reflective grating (26) defined therein onto the substrate (20) upper surface, and affixing the optical fiber (24) to the substrate (22) at at least two spaced-apart locations (30, 32).
Patent CA-2243675-A1 (CA)
Title: Trailer-mounted latching mechanism for a boat
Inventor: HYSLOP WILLIAM J
IPC: B60P3/10
Filed: 1998-07-21
Abstract: A latching mechanism for attachment to a boat trailer and for securely latching onto the U-bolt typically found on a boat bow includes an integral weldment providing a pair of oppositely-disposed side plates and a cooperating support plate positioned therebetween.  Assembled to the side plates are a pair of alignment cones which help to guide and direct the bow of the boat and in particular the U-bolt into the latching mechanism.  The support plate defines a receiving channel having a closed base and an open entrance.  A pair of spring- biased latching jaws are pivotally attached to the support plate on opposite sides of the receiving channel and are normally positioned in a closed and latching condition.  Each latching jaw includes a tip portion and the two tip portions are oriented so as to extend inwardly toward each other and across the open end of the receiving channel.  As the U-bolt moves into the open end of the channel and pushes against the tip portions, the latching jaws spring open, allowing the U-bolt to position itself within the receiving channel.  At this point the latching jaws close back and prevent the U-bolt from exiting the receiving channel.  In order to free the U-bolt from the latching mechanism, a release member is provided which is manually pushed in between the two latching jaws to separate those jaws and allow removal of the U-bolt.
Patent CA-2244746-A1 (CA)
Inventor: GRAF HERMANN
IPC: A61K31/44
Filed: 1997-01-31
Abstract: On décrit des taxanes possédant la formule générale (I) dans laquelle Sk peut avoir la formule (i), R?1¿ peut représenter hydrogène ou acyle C¿1?-C¿10?, R?2¿ peut représenter .alpha.-OH ou .beta.-OH, R?3¿ peut représenter alkyle C¿1?-C¿10?, phényle substitué par X, alcoxy C¿1?-C¿10?, X peut représenter hydrogène, halogène, -N¿3? ou -CN, et les groupes hydroxy libres de la formule (I) peuvent être ultérieurement modifiés de manière fonctionnelle par éthérification ou estérification. On décrit également des clathrates d'.alpha.-, .beta.- et .gamma.-cyclodextrine de ces composés, de même que des composés de la formule générale (I) encapsulés dans des liposomes. Les composés de la formule (I) de l'invention, par comparaison avec le taxol, présentent un profil d'activité avantageusement modifié. Outre le fait qu'ils présentent une meilleure stabilisation des microtubules, ces composés de la formule (I) possèdent une influence supplémentaire sur la polymérisation de la tubuline.
Patent CA-2247274-A1 (CA)
Inventor: HANDA AKIHIRO
IPC: H04N1/21
Filed: 1997-12-19
Abstract: Pattern data-like illustrations is stored in a ROM (24) in a printer (200). This pattern data is sent via a communication cable (30) to a digital camera (100) from the printer (200). In the digital camera (300), image data representing a still picture stored in a compressed form in an image memory (9) and pattern data sent from the printer (200) are both expanded by a compressing/expanding section (8) after which they are synthesized with each other, and an image corresponding to the synthesized data is displayed on a color LCD (19). This synthesized data is compressed by the compressing/expanding section (8), and is then sent to the printer (200) from the digital camera (100) via the communication cable (30). The printer (200) expands the compressed synthesized data and then activates a color printer section (26) to print an image corresponding to the expanded synthesized data on a recording sheet.
Patent CA-2247715-A1 (CA)
Title: A screen crusher for soil, waste or manure materials
Inventor: JONNINEN MARKKU
IPC: B02C4/10
Filed: 1998-09-18
Abstract: Soil materials are screened and crushed simultaneously in a bucket of an excavating machine having its back wall replaced by crushing and screening elements including rotatable drums, disc plates mounted around the drums, and radially projecting bits between the disc plates. There are further non-rotatable screening and/or crushing means removably mounted between the side walls of the bucket for co-operation with said rotatable crushing and screening elements. The crushed and screened materials fall down through the back wall and the non-crushable materials with size exceeding the size of screen openings remain in the bucket for dumping in the pile of a coarse pieces.