baber/WOPTO huggingface dataset:
Patent CA-2200142-A1 (CA)
Title: Multitrack architecture for computer-based editing of multimedia sequences
Inventor: HERMANSON DAVID
IPC: G11B27/034
Filed: 1997-03-17
Abstract: A multitrack architecture for computer-based editing of multimedia sequences is disclosed herein. The multimedia sequences are formed of a plurality of collated segments representing audio or video scenes. The architecture contains sequence tracks for ordering the segments of the multimedia sequence and process tracks for applying transformations and/or animations to some of these segments. The output of the process tracks may be supplied to other process tracks and/or to a sequence track. Scope controls are provided to determine which portion of the output of a process track is supplied to another process track and/or to a sequence track.
Patent CA-2202077-A1 (CA)
Inventor: CLAPPER ROBERT C
IPC: G09F7/18
Filed: 1997-04-07
Abstract: A sign has an elongated cabinet having an open side covered with a translucent fabric stretched by a stretching apparatus joinable to the ends of the cabinet. Point light source illuminating lamps are spaced along the cabinet and are employed in conjunction with reflectors and diffusers to provide uniform backlighting to the fascia fabric.  The lamps and associated ballasts may be inserted and removed from the cabinet as a unit.  The cabinet is formed to permit gross and fine incremental increases in the length of the cabinet when mounting the sign on a building or other structure.  The fascia sign is maneuvered into position with a lifting device that orients the fascia sign to facilitate installation.  A mounting molding and strap may be employed to position the sign on the structure to which it is mounted.
Patent CA-2202128-A1 (CA)
Inventor: THOMPSON JAMES H
IPC: H01Q3/40
Filed: 1996-08-09
Abstract: A quadrifilar antenna is comprised of four radiators which, in the preferred embodiment, are etched onto a radiator portion of a microstrip substrate. The microstrip substrate is formed into a cylindrical shape such that the radiators are helically wound. Also etched onto the microstrip substrate is a feed network that provides 0.degree., 90.degree., 180.degree. and 270.degree. signals to the antenna radiators. The feed network utilizes a combination of one or more branch line couplers and one or more power dividers to accept an input signal from a transmitter and to provide therefrom the 0.degree., 90.degree., 180.degree. and 270.degree. signals needed to drive the antenna. For receive operations, thefeed network utilizes these same components to receive the 0.degree., 90.degree., 180.degree. and 270.degree. signals from the antenna radiators and to provide a single output signal to a communications receiver. The power divider accepts an input signal and provides therefrom two output signals differing from each other in phase by 180.degree.. The branch line coupler accepts an input signal and provides therefrom two output signals differing from one another in phase by 90.degree..
Patent CA-2202464-A1 (CA)
Title: Am-fm transmitter power amplifier using class-bc
Inventor: DENT PAUL W
IPC: H03F3/60
Filed: 1995-10-10
Abstract: A power amplifier circuit for efficiently generating an output signal into a load at more than one alternative power level has at least two amplifiers, each having optimum efficiency at different power output levels. The power amplifier circuit may be operated in several modes, including activating one amplifier during an entire cycle of an input signal to be amplified, or alternatively activating one amplifier based on a control signal that is independent of the amplified output signal. In either case, remaining amplifiers are deactivated. - Coupling between the amplifiers prevents deactivated amplifiers from impeding the flow of power from the activated amplifier to the load. In another aspect of the invention, optimum efficiency at different power output levels is achieved by means of coupling each amplifier to a common power source and to the load via a impedance matching circuit, the impedance transformation being different for different amplifiers. The impedance matching circuit may comprise a push-pull transformer having taps to provide different turns ratios between respective amplifiers and the load. Alternatively, the matching circuit may comprise a number of quarter-wavelength lines each coupled at one end to the load and at the other end to one of the amplifiers via a balun.
Patent CA-2204994-A1 (CA)
Title: A method for enhancing outflow of aqueous humor in treatment of glaucoma
Inventor: BRANDT JAMES D
IPC: A61K31/44
Filed: 1995-12-08
Abstract: Elevated intra-ocular pressure is reduced by administration directly to the eye of compounds that inhibit function of a Na+-K+-2Cl-2 cotransporter mechanism discovered in trabecular meshwork cells of mammalian eyes. These compounds are useful in treatment of diseases of the eye associated with elevated intra-ocular pressure, such as ocular hypertension and glaucoma. A screening method is provided to discover additional compounds with utility for lowering intra-ocular pressure by substantially inhibiting the Na+-K+-Cl-2 cotransporter mechanism in trabecular meshwork cells.
Patent CA-2209101-A1 (CA)
Inventor: FRIEDMAN JEROME
IPC: B65D90/04
Filed: 1997-06-27
Abstract: A method for relining a swimming pool including a deck, the deck being edged by a coping, the deck and coping surrounding a well defined by at least one continuous wall and floor.  The well is lined by a semiflexible first liner having a shape substantially conforming to the shape of the well, the first liner being attached to the coping by a bead formed along a top edge of the first liner, the bead being inserted into the coping.          The first liner is substantially filled with pool water.   The method substantially comprises the steps of:  [a]   slicing away an upper portion of the first liner at a determined distance from the top edge of the first liner and the coping;  [b]   removing the upper portion of the first liner from the coping;  [d]   attaching weighted pulling means for pulling the liner to the edge at a second position;  [e]   pulling the remainder of the second liner along the floor of the well to a position opposite the first end and up the wall;  [f]   removing the weighted pulling means from the second liner and attaching the edge of the second liner at the second position to the coping at a second end of the pool opposite the first end; and [g]   inserting the edges of the second liner between the first position and the second position into the coping.
Patent CA-2210165-A1 (CA)
Title: Brace for fence post
Inventor: MAUFORT KENNETH A
IPC: E04H17/06
Filed: 1997-07-10
Abstract: A brace for attachment between two cylindrical fence posts comprises a pair of sliding tubular members which can be pinned to define a length of a brace. Each end of the brace carries a strap which can be bent slightly to follow the curvature of the respective fence post so that the strap wraps around the fence post and is nailed thereto. The brace is thus attached across the top of the fence posts and can be simply mounted in place without the necessity for notching the fence posts.
Patent CA-2210265-A1 (CA)
Title: Piston for compressors
Inventor: MURAO KAZUSHIGE
IPC: F04B27/08
Filed: 1997-07-14
Abstract: A piston for use in a compressor that compresses gas containing lubricating oil is disclosed.  The compressor includes a housing having a crank chamber and cylinder bores for accommodating the pistons.  A swash plate is located in the crank chamber and is supported on a drive shaft.  The swash plate is operably connected to the pistons by shoes to convert the rotation of the drive shaft to reciprocation of each piston.  Each piston has a head for compressing the gas supplied to the cylinder bore and a skirt projecting from the head toward the crank chamber and connected to the swash plate.  A restrictor provided on the skirt slidably contacts an inner surface of the housing to prevent the piston from rotating in the cylinder bore.  A sloped surface extends along the edge of an end face of the restrictor.  The sloped surface guides the oil in the crank chamber toward the shoes when the piston moves from a top dead center position to a bottom dead center position.
Patent CA-2210881-A1 (CA)
Inventor: STIDHAM WARREN DARIUS JR
IPC: C09D7/00
Filed: 1996-01-11
Abstract: Composition renfermant : a) un latex naturel ou synthétique; b) un agent épaississant renfermant un ou plusieurs polysaccharides, l'agent épaississant représentant entre 0,01 et 15 parties par 100 parties de polymère dans le latex naturel ou synthétique, et le polysaccharide ne comprenant pas uniquement un dérivé d'amidon ou de cellulose. La composition est utile pour les applications relatives aux adhésifs et aux textiles. On présente également une méthode pour préparer les compositions.
Patent CA-2211278-A1 (CA)
Inventor: CONTE M JOSEPH
IPC: A24F13/26
Filed: 1997-07-23
Abstract: A  cigar  punch  and  tobacco  ejector   apparatus comprising  a housing having  a cylindrical  hollow body attached to a base and having an open circular end, and a cutter having a barrel removably connected to a handle and a slot formed on the barrel adjacent to the handle. The housing is for storing the cutter when not in use. The  cutter has  a  sharp,  open-mouthed edge  adapted  to receive a tip of a cigar, to cut a piece from the cigar, to form hole in the cigar's tip,  and to hold the cut piece when the cigar is moved away from the cutter.   A plunger assembly is removably connected to the cutter. The plunger  assembly has  a plunger  adapted  to  travel within the cutter's barrel,  a collar adapted to being placed over the barrel and to be connected to the plunger through the barrel's  slot.   A dowell pin  is  used to connect the collar to the plunger through the slot.   The collar slides along the barrel as the dowell pin moves along the slot, thereby allowing the plunger to eject the cigar's cut piece from the cutter.
Patent CA-2212642-A1 (CA)
Title: A portable, personal breathing apparatus
Inventor: HOUGEN EVERETT D
IPC: A61M16/00
Filed: 1996-02-09
Abstract: A respiratory exercise apparatus (10) for providing resistance and percussion during inspiration and expiration. The apparatus includes a main body (12) having an inner cavity (18), an orifice (22) in communication with the inner cavity, and at least one aperture (26) in communication with the cavity. A movable member (44) disposed relative to the main body. Upon movement of the member, the aperture (26) in the main body is opened and closed. In one embodiment, the member (44) has a plurality of circumferentially spaced apertures (62, 64) which can be of different sizes. The user can select different sized apertures to align to provide varying degrees of resistance. Moving the member during inspiration and expiration creates a percussion effect. The user can control movement of the member (44) with a lever (76) pivotally disposed within a mouthpiece (92) disposed over the orifice in the main body (12). The inner end of the lever (76) engages the member (44).
Patent CA-2212777-A1 (CA)
Title: Eliminating flow wrinkles in compression molded panels
Inventor: FISHER JOHN M
IPC: B29C43/36
Filed: 1995-02-21
Abstract: A large surface shaped structure having a smooth surface is formed by compression molding a charge (26) of reinforced molding material containing a thermoplastic material by placing a heated mold charge (26) in a mold (12, 14) which has its peripheral surfaces spaced apart to provide a shear gap (34).  The width of the shear gap (34) is adjusted to accept a quantity of molding material sufficient to dissipate residual energy in the flow front of the charge to prevent rebound of the flow front as the structure solidifies.
Patent CA-2213946-A1 (CA)
Title: Handling fibrous material used to produce cellulose pulp
Inventor: PROUGH J ROBERT
IPC: D21C7/06
Filed: 1997-08-20
Abstract: Untreated wood chips are fed to treatment, e.g. steaming at substantially atmospheric pressure, using a mechanical conveyor. Steaming may be accomplished utilizing a vertical chip bin with one dimensional convergence and side relief fed by a horizontal conveyor (e.g. screw conveyor) having a physical restriction which insures formation of a chip plug to prevent leakage of gas through the conveyor housing inlet. The physical restriction may be a generally vertical hinged plate, with an opening containing elastomeric material through which the shaft of the conveyor may pass, or a stationary generally vertical plate with one or more openings, which openings also may be covered with yielding flexible material and with the degree of sealing provided controlled by the speed of rotation of the conveyor shaft.
Patent CA-2214885-A1 (CA)
Title: Supported catalyst component, supported catalyst, preparation process, polymerization process, complex compounds, and their preparation
Inventor: JACOBSEN GRANT B
IPC: C07F7/28
Filed: 1996-03-04
Abstract: A supported catalyst component comprising (a) a support material, an organometal compound, and (b) an activator compound comprising b.1) a cation which is capable of reacting with a transition metal compound to form a catalytically active transition metal complex, and b.2) a compatible anion having up to 100 nonhydrogen atoms and containing at least one substituent comprising an active hydrogen moiety; a supported catalyst comprising the supported catalyst component and a transition metal compound; process for making the same; an addition polymerization process using the supported catalyst;  complex compounds, and a method for preparing the same.
Patent CA-2216882-A1 (CA)
Inventor: TRIVEDI MAHIMA
IPC: C07D309/06
Filed: 1996-04-19
Abstract: L'invention concerne des dérivés amidino utiles comme inhibiteurs de synthase de l'oxyde nitrique, de la formule (I), où R1 est choisi dans le groupe qui comprend cycloalkyle, hétérocyclyle et aryle, pouvant être éventuellement substitués; L est choisi dans le groupe qui comprend alkynylène inférieur, et (CH2)m-D-(CH2)n-; D est choisi dans le groupe qui comprend O, S, SO, SO2, SO2NR7, NR7SO2, NR8, POOR7, PON(R7)2, POOR7NR7, NR7POOR7, C(O), C(O)O; B est choisi dans le groupe qui comprend (CH2)v, CH=CH; A est choisi dans le groupe qui comprend O, NR7, (CH2)q, CH=CH; X est choisi dans le groupe qui comprend NH, O, S, (CH2)p, et CH=CH.
Patent CA-2219841-A1 (CA)
Title: Cellular extension service
Inventor: ALFRED JOSEPH ANDERSON
IPC: H04W8/26
Filed: 1997-10-31
Abstract: Multiple cellular telephones, each having a unique ESN, share the same cellular telephone number (MIN). Data records at the mobile switching center (MSC) are modified to reflect the parent and extension cellular telephones configuration. Incoming calls are delivered to all telephones sharing a MIN simultaneously, sequentially, or in accordance with a caller's selection. An extension wireless telephone may interrupt a call in progress of another extension wireless telephone. Cellular telephones sharing a MIN may call each other using intercom extension numbers.
Patent CA-2222933-A1 (CA)
Inventor: MOHTADI MASOUD
IPC: A45D2/14
Filed: 1998-02-12
Abstract: This invention is an adjustable hair roller. It is possible to make it large or small (diameter wise for bigger or smaller curls). Contrary to the existent rollers in the market that are non adjustable in diameter.
Patent CA-2223783-A1 (CA)
Inventor: BERNATCHEZ MICHEL
IPC: C07B61/00
Filed: 1996-06-06
Abstract: L'invention concerne un procédé permettant de préparer un composé de la formule (I), où un sel de celui-ci, formule dans laquelle: X représente un groupe protecteur; R¿1?, R¿2?, R¿3? et R¿4? représentent indépendamment hydrogène, alkyle C¿1?-C¿6? ou perfluoroalkyle C¿1?-C¿6?; R¿5? représente hydrogène ou, lorsque n vaut 1, R¿5? comprend avec R¿3? une liaison double; m vaut 1, 2 ou 3; n vaut 0 ou 1; et p vaut 0, 1 ou 2. Ledit procédé consiste à faire réagir un composé de la formule (II), ou un sel de celui-ci, formule dans laquelle les groupes R¿1? à R¿5?, m, n et p correspondent à la définition donnée ci-dessus et R¿6? est un groupe chloro, bromo ou iodo, avec un composé de la formule (III), ou un sel de celui-ci, formule dans laquelle X représente un groupe protecteur et R¿7? représente une fraction zinc ou étain (telle que ZnCl, ZnBr ou Sn(alkyle C¿1?-C¿6?)¿3?), en présence d'un catalyseur au palladium ou au nickel.
Patent CA-2227006-A1 (CA)
Title: Wireless communication system, fixed station device and mobile station device
Inventor: YOSHIKAWA MUNEHIRO
IPC: H04W28/18
Filed: 1998-01-15
Abstract: In a wireless communication system, a fixed station device and a mobile station device, the efficiency of data communications is easily improved. In the present invention, the mobile station device comprises a connecting means to which a data terminal is connected, a transmitting means for transmitting first digital data inputted from the data terminal to the fixed station device, and a receiving means for receiving second digital data transmitted from the fixed station device and moreover, the fixed station device comprises a receiving means for receiving the first digital data, a modulating/demodulating means for modulating the first digital data and transmitting the resultant first modulated wave signal to the telephone network and for demodulating a second modulated wave signal inputted from the telephone network to form second digital data, and a transmitting means for transmitting the second digital data, so that the transmission data can be transmitted at the preset transmission rate in the wireless zone, and thus the efficiency of data communications can be easily improved.
Patent CA-2230745-A1 (CA)
Inventor: KUSANAGI RYUICHI
IPC: B21C37/29
Filed: 1998-03-02
Abstract: A member for a high pressure fluid or a member for a high pressure fluid with a built-in slider having higher quality which can be provided at a low price, and by which the generation of tensile stress in the lower end inner peripheral edge part of a branch hole can be canceled by compressive residual stress to be effectively restrained, the internal pressure fatigue strength in the branch hole part can be improved to be excellent in durability, prevent a fluid leakage due to the occurrence of cracks and then exhibit a sure and stable function, further only the addition of the pressing force applying process to the ordinary manufacturing process will be sufficient, and complicated equipment is not required to hardly cause the problems of an increase in the equipment cost due to an increase in the number of processes and lowering of productivity.     The method of forming a branch hole communicating with a hollow part in a member for a high pressure fluid having the hollow part, which is characterized in that before or after, or simultaneously with a process of pressing inward the member for a high pressure fluid from the outside to form a part where compressive stress remains on the hollow part side inner peripheral surface, a process of boring a branch hole opened to the hollow part is executed to make the compressive residual stress exist in the peripheral edge of the branch hole, and a branch hole part of a member for a high pressure fluid formed by the described method.
Patent CA-2231604-A1 (CA)
Title: Sintered abrasive tools
Inventor: ELLINGSON THOMAS
IPC: B24D3/16
Filed: 1998-03-09
Abstract: Light weight metal bonded abrasive tools consisting of an annular rim of metal bonded superabrasive joined to a central core or hub made from a dissimilar metal, such as aluminum powder, are manufactured in a single sintering step that yields a near net shape abrasive tool. The abrasive tools are useful for the grinding of optical components made of plastic or glass.
Patent CA-2232782-A1 (CA)
Title: Centrifugal separator with improved quiescent collection chamber
Inventor: FORD STEVEN D
IPC: B01D21/00
Filed: 1996-09-23
Abstract: A centrifugal separator (10) of the type for separating particulate matter from a whirling liquid stream, in which the centrifugal separator has an improved quiescent collection chamber (30). A plurality of vertical baffles (80, 82) extend downwardly into the centrifugal separator's collection chamber (30), thereby reducing turbulence and circular flow of the solidladen liquid introduced into the centrifugal separator and also reducing reentrainment of solids into the separation chamber of the centrifugal separator.  A conduit (50) may also extend from the quiescent region (46) above the centrifugal separator's spin plate (20) to a region immediately above the spin plate, thus enabling removal of clarified liquid from the collection chamber's quiescent region (46).
Patent CA-2232877-A1 (CA)
Title: Method for producing an optoelectronic semiconductor component
Inventor: WAITL GUENTHER
IPC: H01L31/0203
Filed: 1996-09-13
Abstract: The invention relates to an optoelectronic semiconductor component (1), comprising a chip carrier (3), which has an approximately planar chip carrier surface (2) and on which an optoelectronic semiconductor chip (4) is fastened with predetermined alignment of its optical axis (5), and a base part (6), which is assigned to the chip carrier (3), supports the latter and is produced from a plastic material, the semiconductor chip (4) being electrically conductively connected to at, least two electrode terminals (7, 8) routed through the base part (6), and the semiconductor chip (4) being assigned a lens (10), which engages over the base part (6). The lens (10) which engages over the base part (6) is designed as part of an independently configured cap (11) produced from plastic material, the cap (11) having a holding means (13) for a positively locking mechanical connection to a supporting means (14) of the base part (6). When the cap (11) is placed onto the base part (6), the holding means (13) and the supporting means (14) alternately engage with one another. The holding means (13) and the supporting means (14) are configured in such a way that when the cap (11) is placed onto the base part (6), these are automatically positioned with respect to one another in such a way that the optical axes (12) of the lens (10) and of the semiconductor chip (4) arranged on the chip carrier (3) coincide at least approximately.
Patent CA-2233946-A1 (CA)
Title: Procede de preparation de particules pigmentaires magnetiques modifiees
Inventor: KWAN WING SUM VINCENT
IPC: C09D11/02
Filed: 1996-10-02
Abstract: L'invention se rapporte à un procédé de préparation de particules pigmentaires magnétiques modifiées qui sont utilisées dans des compositions d'encre magnétique et des supports d'enregistrement magnétiques. Les particules pigmentaires magnétiques sont préparées à partir d'une pâte fluide aqueuse. Un agent de dérivatisation de surface est ajouté à la pâte fluide pour rendre les particules pigmentaires magnétiques hydrophobes. Les particules tombent alors au fond de la pâte fluide et l'eau libre est ensuite retirée. Après séchage à l'air, on obtient des particules pigmentaires magnétiques sèches. Les particules deviennent hydrophobes et ont, par conséquent, une meilleure résistance à l'eau comparé aux particules pigmentaires magnétiques connues.
Patent CA-2236727-A1 (CA)
Inventor: GALLANT JAMES O
IPC: B05D1/38
Filed: 1998-05-05
Abstract: A release coating suitable for on bowed rolls, press rolls, and other machine elements comprises an adhesive layer and a release layer.  The adhesive layer includes an acrylated monomer, an acrylated urethane, and a diacrylated aromatic monomer. The release layer includes these three components and an acrylated polysiloxane.  With these components, the release coating has superior release properties as well as good abrasion resistance and hardness.