baber/WOPTO huggingface dataset:
Patent CA-2220372-C (CA)
Inventor: WURMLINGER ERNEST H
IPC: A47C4/00
Filed: 1997-11-06
Granted: 2007-01-09
Abstract: The present invention provides a collapsible wall mounted seat comprising a linkage mount for fixing to a wall, a seat for supporting a person, and a linkage connecting the seat to the linkage mount. The linkage includes a first end and a second end and is connected at the first end to the linkage mount and at the second end to the seat. The linkage is movable between a folded position with the seat lying adjacent and substantially parallel to the wall, and an extended position with the seat extending outwards from and substantially perpendicular to the wall. The collapsible wall mounted seat includes a releasable lock for locking the linkage in the extended position.
Patent CA-2226908-C (CA)
Inventor: GLEASON JAMES S
IPC: B23F9/10
Filed: 1996-08-29
Granted: 2001-11-27
Abstract: A method of feeding a tool (2) to a predetermined depth in a workpiece (14) in a machining process for producing at least one tooth surface on the workpiec e. The workpiece (14) being rotatable about a work axis (W) and the tool (2) being rotatable about a tool axis (T) and including at least one stock removing surface (4). The method comprises rotating the tool (2) about the tool axis (T) and contacting the rotating tool (2) and the workpiece (14). T he tool is fed relative to the workpiece along a feedpath (FT) to the predetermined depth wherein at least a portion of the feedpath (FT) is defin ed by a feed vector comprising at least first and second feed vector components  (Ft1, Ft2). The first and second feed vector components are positioned in a plane (PT) defined by the work axis (W) and the direction of the tool axis ( T) with the first feed vector component (Ft1) being substantially in the direction of the tool axis (T) and the second feed vector component (Ft2) being substantially in the direction of the face width of the workpiece (14) .
Patent CA-2229541-C (CA)
Title: Procede pour la desinfection de solutions aqueuses
Inventor: HUSS MICHAEL
IPC: C02F1/72
Filed: 1996-08-07
Granted: 2007-07-03
Abstract: L'utilisation de solutions d'acide peracétique de type commercial, à haute teneur en acide peracétique (PES) et en acide acétique, pour la désinfection de solutions aqueuses en grandes quantités, telles qu'elles se présentent dans les effluents d'installations d'épuration, est étroitement limitée en raison de problèmes posés par le stockage, le transport, les matériaux et la manipulation, et également, du fait qu'une reprolifération des germes est insuffisamment retardée. Le procédé selon l'invention permet de désinfecter des solutions aqueuses, même en grandes quantités, de façon économique, sans les inconvénients précités et tout en retardant une reprolifération des germes, grâce au fait qu'on utilise comme agent désinfectant, une solution d'acide peracétique avec une teneur de 1,5 à 2,5 % en poids d'acide peracétique et de 40 à 60 % en poids de peroxyde d'hydrogène et une teneur en acide acétique inférieure à 2 % en poids. On utilise de préférence une solution d'acide peracétique renfermant moins de 1 % en poids d'acide acétique.
Patent CA-2235019-C (CA)
Title: A power-conserving linear broadband rf amplifier
Inventor: EMBREE MILTON LUTHER
IPC: H04B1/40
Filed: 1998-04-16
Granted: 2001-02-13
Abstract: A power-conserving, linear and broadband RF amplifier, suitable for use at more than one band in the ultra-high frequency regions allotted to radiotelephone transceivers, employs an emitter-follower output transistor to deliver the nominal 1.0 milliwatt RF power to a single-ended load from a low voltage battery, typically 2.7 v. dc, without the use of output coupling transformers. The amplifier receives only a small differential input signal from the preceding mixer or multiplier stage having a typical peak-to-peak magnitude of 0.3 v. The differential input signal is applied to the emitters of a pair of transistors whose bases are interconnected, one transistor of which is diode-connected in a current-mirror configuration and the other of which is configured in a common-base connection with emitter degeneration. The signals are summed at the collector of the common-base transistor to deliver a substantial voltage swing, illustratively 1.7 volts peak to peak, which is large enough to drive the base of the emitter-follower output transistor without requiring the high standby current in the emitter-follower normally required to maintain an emitter-follower in class A operation.
Patent CA-2243363-C (CA)
Title: Process for producing chromans
Inventor: TAMAI YOSHIN
IPC: C07C43/178
Filed: 1998-07-16
Granted: 2002-01-29
Abstract: The present invention is directed to a process for producing chromans, comprising reacting a phenol, a formaldehyde and an alcohol in the presence of a secondary amine and an acid, to generate an alkoxymethylphenol compound with the ortho position to the phenolic hydroxyl group being substituted with an alkoxymethyl group, and reacting the alkoxymethylphenol compound with an unsaturated compound having a carbon-carbon double bond. Among the alkoxymethylphenol compounds generated as the intermediate products during the aforementioned reaction, specific ones are novel compounds of the formula: (see formula I) wherein R5 represents an alkoxyl group; R6 represents an aliphatic acyl group, an aromatic acyl group, benzyl group or a hydrogen atom; R7 and R8 each independently represent a hydrogen atom or a methyl group.
Patent CA-2252348-C (CA)
Title: Electrical switching apparatus employing battery-powered indicator
Inventor: MATSKO JOSEPH J
IPC: H02H3/04
Filed: 1998-11-04
Granted: 2007-07-24
Abstract: A circuit breaker includes separable contacts for movement between a closed position and an open position. An operating mechanism moves the separable contacts between the closed and open positions and has a closed state and an open or tripped state which corresponds to the open position. A trip circuit senses electrical current flowing through the separable contacts, employs the sensed current t o trip the operating mechanism to the tripped state to move the separable contacts to t he open position, and provides plural status signals. A display circuit cooperates with the trip circuit and includes light emitting diodes for outputting the status signals . A battery powers the display circuit which further includes an oscillator circuit for modulating the LEDs to reduce power from the battery to the display circuit.
Patent CA-2256926-C (CA)
Title: Tunable chirped fiber grating device and method for forming chirped fiber grating
Inventor: PARK MOO-YOUN
IPC: G02B26/00
Filed: 1998-12-23
Granted: 2002-02-05
Abstract: A tunable chirped grating device an optical fiber having the same spacings between index perturbations, a piezoelectric element bonded to the optical fiber, for changing the perturbation spacings according to an applied voltage, and a voltage source for applying the voltage to the piezoelectric element. Since a predetermined piezoelectric element is bonded to an optical fiber provided with a grating having regular spacings and the perturbation spacings can be differentlydeformed by applying different electric field to respective perturbation positions by the piezoelectric element, and the chirping rates of the reflected wavelengths waves can be adjusted, a chirped grating device whose manufacturing procedure is simple and which has flexibility can be provided.
Patent CA-2262084-C (CA)
Inventor: KOH KYUNG CHEON
IPC: A47J27/08
Filed: 1999-02-24
Granted: 2004-08-10
Abstract: An electrical thermostatic pressure cooker and cooking control method thereof is disclosed. The method includes the steps of determining whether a frying (roasting) cooking is set, setting a cooking time period when the frying (roasting) cooking is determined, continuing the heating operation for a predetermined time until the temperature in the cooker reaches a predetermined temperature (T4) after a start button is pressed, halting the heating operation and generating a buzzer sound when the temperature in the cooker has reached the predetermined temperature (T4), determining whether the cooking is completed while controlling the heating operation so as to maintain a temperature range (T5-T6) when the cooking proceeds after the material to be cooked is input, and completing the cooking operation after generating the buzzer sound when the cooking is completed, and wherein T4>T6>T5. The cooker allows a user to make a random setting on cooking period as well as enabling a frying style cooking in addition to the conventional pressure-applied cooking.
Patent CA-2262355-C (CA)
Title: Protection of gas communication in an electrochemical sensor
Inventor: MALLORY JOHN
IPC: G01N27/49
Filed: 1999-02-23
Granted: 2004-06-01
Abstract: An electrochemical sensor for detection of a gas in an atmosphere containing the gas. The sensor has a housing having an electrochemical gas sensor with an electrolyte and at least two electrodes, one electrode being a gas sensing electrode. The housing has an orifice between the sensing electrode and the atmosphere for transmission of gas from the atmosphere to the sensing electrode, the orifice being protected by a hydrophobic membrane, and connected to at least two radial channels extending from the orifice. Each of the radial channels is connected to a common channel, such that gas communication from the atmosphere through the orifice to the sensing electrode is through the common channel and the radial channels, in addition to the covering membrane if the membrane is gas permeable.
Patent CA-2265647-C (CA)
Inventor: MIWA KUNIHIKO
IPC: H04N5/913
Filed: 1997-08-12
Granted: 2003-09-23
Abstract: Système de gestion d'accès à des données qui permet d'empêcher efficacement l'accès illégal à des données. Ledit système est doté d'un système d'enfouissement d'informations de gestion d'accès dans lequel les informations de gestion d'accès aux données sont préparées, puis sont enfouies dans les données par déformation des données sans changement de leur qualité. La présente invention concerne un procédé de gestion d'accès à des données dans lequel les informations de gestion enfouies dans les données par déformation des données, sans changement de la qualité desdites données, sont extraites et l'accès aux données est géré selon les informations extraites. La présente invention concerne également un procédé permettant de modifier l'accès à des données selon le type de support (RAM ou ROM) sur lequel les données sont stockées. Lesdites informations de gestion comprennent les informations de commande d'enregistrement, de réception, de reproduction, d'entrave de sortie, de copiage de l'historique des données ou de changement des informations de gestion. Selon le présent procédé, on peut empêcher le copiage illégal, etc., de données, ce qui permet de protéger efficacement une oeuvre littéraire.
Patent CA-2266322-C (CA)
Title: High current protection circuit for telephone interface
Inventor: WONG WAYNE KWOK-WAI
IPC: H02H3/087
Filed: 1999-03-23
Granted: 2011-10-25
Abstract: A telephone test set protected from an excessive current condition by a protection circuit that maintains sufficient loop current flow for continuous operation of the telephone equipment's functional circuitry. A series current-limiting element installed in the loop current path between a tip and ring interface and the circuitry of the telephone test set. A current shunting circuit installed across the tip - ring ports of the protected circuit downstream of the current-limiting element. A current sense circuit monitors the loop current and controls the operation of the shunting circuit. If a substantial overcurrent condition persists for an extended period of time, the resulting power dissipation associated with the high current flow will cause the current limiting element to change to a high impedance state. Once the overcurrent condition terminates, the series element will revert to its low impedance state.
Patent CA-2266807-C (CA)
Title: A method for evaluating the ability of a compound to inhibit the protoporphyrinogen oxidase activity
Inventor: SHIMOKAWATOKO YASUTAKA
IPC: C12Q1/6897
Filed: 1999-04-09
Granted: 2012-03-13
Abstract: The present invention provides: A method for evaluating the ability of a compound to inhibit the protoporphyrinogen oxidase activity, which comprises the steps of: (1) culturing a transformant expressing a protoporphyrinogen oxidase gene present in a DNA fragment in a medium containing substantially no protoheme compounds in each comparative system of the presence and absence of a test compound to measure a growth rate of the transformant under each condition, said transformant being resulted from a host cell deficient in the growing ability based on the protoporphyrinogen oxidase activity transformed with the DNA fragment in which a promoter functionable in the host cell and a protoporphyrinogen oxidase gene are operatively linked, and (2) determining the ability of the compound to inhibit the protoporphyrinogen oxidase activity by comparing the growth rates; and the like.
Patent CA-2271800-C (CA)
Title: Intervertebral prosthetic device
Inventor: BUTTERMANN GLENN R
IPC: A61F2/44
Filed: 1997-11-06
Granted: 2005-01-18
Abstract: An intervertebral prosthetic device (10, 76) for replacement of an intervertrebral disc includes a first fixation member (14, 78) for fixation within a first vertebral body (20) and a second fixation member (16, 80) for fixation within a second vertebral body (22) adjacent the first vertebral body (20).  The present prosthetic device (10, 76) also includes a compressible member (18, 82) for positioning between the first (14, 78) and second (16, 80) fixation members. The compressible member (18, 82) has an outer periphery less than or substantially equal to a diameter of a nucleus pulposus of the intervertebral disc. The compressible member (18, 82) thus essentially fits within the annulus fibrosis of the intervertebral disc. The compressible member (18, 82) also has at least one spring (40, 54, 58, 62) that can be pre-loaded to place the annulus fibrosis under tension and to reproduce the mechanical properties of a natural disc.
Patent CA-2272961-C (CA)
Inventor: ROBERTS NEIL
IPC: F25B1/00
Filed: 1997-11-28
Granted: 2006-09-19
Abstract: L'invention concerne une composition réfrigérante non azéotropique possédant une pression de vapeur comprise, à -20  DEG C, entre 70 et 190 kPa (de 0,7 à 1,9 bar), à +20  DEG C, entre 510 et 630 kPa (de 5,1 à 6,3 bar) et, à +60  DEG C, entre 1620 et 1740 kPa (de 16,2 à 17,4 bar), et comprenant: (a) entre 60 et 99 % en poids, calculé sur la base du poids de la composition, de 1,1,2,2-tétrafluoroéthane (R134), de 1,1,1,2-tétrafluoroéthane (R134a), de difluorométhoxytrifluorométhane (E125) ou d'un mélange de deux ou de plusieurs d'entre eux; (b) de 1 à 10 % en poids, calculé sur la base du poids de la composition, d'un hydrocarbure non substitué de formule CnHm, où n représente au moins 4 et m, au moins 2n-2; et (c) jusqu'à 39 % en poids, calculé sur la base du poids de la composition, d'un composé susceptible d'abaisser la pression de vapeur.
Patent CA-2278519-C (CA)
Inventor: BRANCHI VALENTINO
IPC: B65D75/30
Filed: 1998-01-21
Granted: 2006-11-21
Abstract: Emballage de type plaquette thermoformée conçu pour enfermer un ou plusieurs éléments (1) pris en sandwich entre une partie dorsale (2) et un film thermoplastique (3) scellé à ladite partie le long d'une ligne fermée (4), extérieurement par rapport à l'élément ou aux éléments à emballer. Le film thermoplastique a une orientation monoaxiale ou biaxiale lorsqu'il est appliqué sur la partie dorsale et, après application, il est thermorétracté de manière à être tendu au-dessus du ou des éléments à emballer, qui sont ainsi calés sur la partie dorsale. On décrit aussi un procédé relatif à l'élaboration d'un tel emballage.
Patent CA-2278546-C (CA)
Title: Freeze-dried composition of bone morphogenetic protein human mp52
Inventor: ICHIKAWA HIDEKI
IPC: A61K38/18
Filed: 1998-01-29
Granted: 2008-04-01
Abstract: A stable freeze-dried composition of a bone morphogenetic protein human MP52 wherein coloration and shrinking of MP52 during storage and aggregation at the re-dissolution can be prevented. The composition is obtained by mixing MP52 with mannitol at a weight ratio of 1 : 5 to 1 : 50 followed by freeze-drying.
Patent CA-2284910-C (CA)
Title: Pharmaceutical combined preparations containing erythropoietin and iron preparations
Inventor: LEHMANN PAUL
IPC: A61K31/715
Filed: 1997-03-18
Granted: 2003-01-28
Abstract: The invention relates to a pharmaceutical combined preparation comprising 250 -20,000 U of an EPO preparation in an individual form of administration and 5-20 mg of an Fe(III) complex. Said EPO preparation and said Fe(III) complex can be made available in a separate or homogeneous form of administration. Said pharmaceutical preparation is used for treating anemic or hemodialysis patients.
Patent CA-2285305-C (CA)
Inventor: MALMSTROM SVEN
IPC: F16D65/28
Filed: 1998-03-26
Granted: 2007-03-13
Abstract: L'invention concerne un système de freinage destiné à un déambulateur à roues doté de deux montants possédant deux tubes supports (10, 11, 20, 21, 30, 31, 40, 41) réglables de façon télescopique, le premier portant dans sa partie supérieure une poignée (12, 412) et un levier (13, 413) de frein, l'autre étant doté dans sa partie inférieure d'un organe de freinage (18, 420) permettant de freiner une roue (19). Le système de freinage comprend une tige (17, 217, 317, 47) de frein réglable de façon télescopique placée à l'intérieur des tubes supports entre le levier de frein et l'organe de freinage et dotée de deux tiges parallèles (17a, 17b; 217a, 217b; 317a, 317b; 47a, 47b), la première étant reliée au levier (13, 413) de frein et l'autre à l'organe de freinage (18, 420). Le réglage axial de la longueur du tube support, permettant de régler la poignée à la hauteur souhaitée, entraîne simultanément une modification correspondante de la longueur de la tige de frein. Le système de freinage comprend également au moins un organe (110-112; 113-115; 211, 216; 311, 316) destiné au verrouillage des tubes supports et des tiges (17a, 17b; 217a, 217b; 317a, 317b; 47a, 47b) des tiges (17, 217, 317, 47) de frein.
Patent CA-2286498-C (CA)
Title: Cup with separable coupon
Inventor: BRUCH CHRIS T
IPC: B65D3/28
Filed: 1999-10-14
Granted: 2004-12-28
Abstract: A beverage cup with an integral coupon panel extending from an outer seam edge of the cup and overlying the outer face of the cup wall. The coupon panel includes a central vertically downward strippable coupon integral with vertical side retaining strips along severance lines with the retaining strips bonded to the cup wall and the coupon free of the cup wall and secured solely by the side retaining strips.
Patent CA-2286818-C (CA)
Inventor: BARTSCH ERIC RICHARD
IPC: B65D41/48
Filed: 1998-04-14
Granted: 2003-06-10
Abstract: This invention relates to an improved design for the tear handle of a tamper  evident closure. Specifically, the invention relates to a design for a closu re tear handle (28) which prevents damage to the closure tear skirt (24) under large application forces when the closure is applied to the bottle; this invention also provides a tear skirt which is easier for consumers to remove . A weak region (46) is placed at the base (38) of the intersection of the tea r handle (28) and the wall of the tear skirt. This weak region (46) of the closure is designed such that upon contact with the neck finish of a bottle,  which puts the tear skirt into tension, it attracts the tensile forces and relieves stress from the adjacent weak point (42) of the closure tear skirt to prevent damage to this area that would be offensive to consumers and result in wasted product.
Patent CA-2288402-C (CA)
Title: Solid state laser master oscillator gain module
Inventor: HILYARD RODGER C
IPC: H01S3/06
Filed: 1999-11-03
Granted: 2002-09-17
Abstract: A gain module is provided for a master oscillator pumped amplifier system of a solid state laser including a ceramic housing supporting a Nd:YAG lasing slab therein. The slab is fixed relative to the housing by a pair of oppositely disposed compliant and optically transmissive securing members fictionally wedged between the housing and the lasing slab. A plurality of fluid passages are formed in the housing so as to communicate with the lasing slab. As fluid overflows the slab, the compliant securing members prevent the slab from vibrating. Preferably, the securing members are formed as U-shaped polycarbonate bars frictionally engaging the slab on a first surface and positionally adjustable driver bars coupled to the housing via a set screw block on a second surface.
Patent CA-2289312-C (CA)
Title: Telescoping hitch for planting implement
Inventor: HUNDEBY DAVID R
IPC: A01B73/06
Filed: 1999-11-10
Granted: 2009-05-19
Abstract: An agricultural planter is provided with forwardly folding wing members that allow conversion of the planter from a laterally extending operating position to a compact transport position. To increase stability for the planter, the draw bar telescopes as the wing members are folded forwardly into the transport position. Brace members interconnect a forward portion of the draw bar and the wing members. As the wing members fold forwardly, the brace members are arranged to cause a rearward portion of the draw bar to extend rearwardly from the forward portion and effect the telescopic action in the draw bar. A draw bar hitch lock linkage is provided to keep the draw bar compacted when the wing members are in the operating position. A hitch lock actuator is tied into the hydraulic system for the movement of the wing members into the transport position to permit the telescopic action of the draw bar in concert with the forward folding of the wing members.
Patent CA-2292618-C (CA)
Title: Improved precipitation process of 7-aminocephalosporanic acid (7-aca)
Inventor: WAGNER HELMUT
IPC: C07D501/12
Filed: 1998-06-02
Granted: 2007-07-31
Abstract: A process in the isolation of 7-aminocephalosporanic acid (7-ACA) of formula (I) from an alkaline, neutral or slightly acidic medium in the presence of an additive, e.g. selected from the group comprising organic carboxylic acid esters, polymeric glycols, polyacryls, amines and polyamines, melamin-formaldehyde resins or amino acids and esters thereof to obtain 7-ACA agglomerates and/or rosettes.
Patent CA-2293277-C (CA)
Inventor: OH JAE-SEUNG
IPC: C08F4/18
Filed: 1999-04-09
Granted: 2008-07-22
Abstract: L'invention concerne un procédé de fabrication d'un catalyseur à métallocène supporté, conformément à la formule de réaction 4. Ledit procédé consiste à faire réagir un catalyseur à métallocène possédant un groupe alcoxysilane avec des groupes siloxanes très réactifs, sur des matériaux de support. Ledit catalyseur est produit lorsque les matériaux de support sont séchés à une température élevée, sans groupes superficiels OH. Ledit procédé permet d'éliminer des réactions secondaires induites par la réaction des composés métallocènes avec les groupes hydroxyles.
Patent CA-2302926-C (CA)
Inventor: HAUGHTON DAVID B
IPC: E21B31/20
Filed: 2000-03-29
Granted: 2004-11-02
Abstract: A one-trip system for removing casing from a wellhead is described. The string includes a cutting device spaced at the required depth and a grappling device above it at the appropriate location. A swivel tool, such as a marine swivel, is used in conjunction with a seal-pulling assembly so that after cutting the casing, the seal assembly can be pulled without an additional trip into the well. The grappling device or spear can be hydraulically actuated to grab the casing for removal from the wellbore. The spear features a drop-in restrictor which allows sufficient flow during cutting operations with a mechanical cutter without actuating the spear, while at the same time allowing actuation of the spear by circulation after dropping in the restrictor after the casing section has been cut.