baber/WOPTO huggingface dataset:
Patent CA-2214217-A1 (CA)
Inventor: TSUJI HITOSHI
IPC: H02M3/28
Filed: 1997-08-28
Abstract: A  switching  power  supply  apparatus  designed  for suitably controlled stabilization of its output.   The apparatus has a charge control circuit.   If the voltage across an input capacitor is lower than a set voltage when a main power supply switching element turns on, a control circuit  switching  element  turns  on  and  energy  is transferred  from an  input  power  source  by  conduction through  the  control  circuit  switching  element  and  an inductance, and the inductance stores transferred energy. When the main switching element turns off,  the charge control circuit turns off the control circuit switching element to supply the stored energy in the inductance to the input capacitor.  If the voltage across the input capacitor is equal to or higher than the set voltage when the main switching element turns on, the control circuit switching element is maintained in the off state and the inductance cannot store energy.   The voltage across the input capacitor is thereby limited.  In this manner, the voltage across the input capacitor is controlled so as to be stabilized at the set voltage.  This stabilizes the output voltage of the apparatus and improves its circuit efficiency.
Patent CA-2224441-A1 (CA)
Inventor: KURA HISATOSHI
IPC: G03F7/038
Filed: 1997-12-10
Abstract: Compounds of formula I, II or III          ,                  wherein X is a divalent radical;          Y is C1-C6alkylene, cyclohexylene or a direct bond;          Ar1 is an aromatic radical as defined in claim 1, R1 and R2 are each independently the other, inter alia, a radical of formula           , in which p is zero or 1, or a radical of formula           , R3 is, inter alia, hydrogen, C1-C12alkyl, C5-C12cycloalkyl or phenyl-C1-C3alkyl;R4 is, inter alia, C1-C12alkyl, C5-C12cycloalkyl, phenyl-C1-C3alkyl or phenyl; or an acid addition salt of a compound of formula 1, II or III; are useful as photosensitive base catalysts in base crosslinking compositions.
Patent CA-2224675-A1 (CA)
Title: Coaxial testing and provisioning network interface device
Inventor: NULTY GREGORY M
IPC: H04N7/10
Filed: 1996-06-14
Abstract: A broadband network (121) for providing broadband signals, such as cable television signals, to a subscriber location includes a network interface device (108) installed at the subscriber's end of the broadband network. The network interface device (108) includes circuitry that provides for the selective provisioning of services to the subscriber location from the broadband network, and a test circuit that can be selectively connected for testing signals appearing on the broadband network (121).
Patent CA-2226824-A1 (CA)
Title: Cartridge valve with vacuum breaker
Inventor: O'HARA ROBERT P
IPC: F16K11/078
Filed: 1998-01-09
Abstract: A cartridge valve 116 includes a fixed disk 80 and a movable disk 118 mounted in a housing 66.  A lever 46 extends through a major opening 72 axially located at one end of the valve 116.  The lever 46 is attached to a coupler 130 for facilitating movement of the movable disk 118 relative to the fixed disk 80 to control the flow and temperature of water passing through the valve 116.  A flexible valve 144 is attached to the coupler 130 and, in normal use of the valve 116, prevents holes 136 formed therethrough from communicating with a passage formed through the movable disk 118. Air from the environment surrounding the valve 116 can enter the major opening 72, and upon the occurrence of a negative pressure in the water supply, will flex the valve 144 to allow air to enter the supply line to negate the undesirable effects thereof.  In another cartridge valve 160, holes 166 are formed through the side wall of the housing 66 to provide further air communication through the holes 136 of the coupler 130.  In still another cartridge valve 168, the lever 46 occupies the major opening 72 to the extent that there is no effective communication between the major opening and the holes 136 formed in the coupler 130.  In this instance, the holes 166 formed in the side wall of the housing 66 provide the communication between the holes 136 of the coupler 130 and the environment surrounding the valve 116.
Patent CA-2230071-A1 (CA)
Title: Data hiding and extraction methods
Inventor: KOBAYASHI MEI
IPC: H04N1/44
Filed: 1997-02-13
Abstract: A data hiding method for hiding message data in media data and a data extracting method for extracting message data hidden in the media data. In the data hiding method, the message data are dispersedly hidden in the media data so that no third person can alter the message data. Specifically, the array elements of a message array are dispersedly hidden in a media array based on a status value S designating a specific array element in the media array when the media data and message data are expressed as the media array and the message array, respectively. The hiding method includes (a) a step of determining the j-th (j0) status value Sj, (b) a step of determining the (j+1)th status value Sj+1 based on the value Sj, the array element of the media array designated by the value Sj and the above-mentioned array element of the message array, and (c) a step of hiding data to be hidden in the array element of the media array designated by the value Sj+1.
Patent CA-2230525-A1 (CA)
Inventor: HICKMAN JOHN
IPC: G02F1/13
Filed: 1998-02-25
Abstract: A liquid crystal display device having a liquid crystal layer interposed between a pair of substrates, said substrates being coupled to each other through an insulative sealing material at the peripheral portions thereof, one of said pair of substrates being a transparent front substrate through which viewing of the display device occurs, and a graphite containing matrix coating on an inside surface of the front substrate, said coating having a matrix of apertures therein, said coating being applied by application of a composition comprising in weight percent, about 1% to about 30% colloidal graphite, about 0.1% to about 20% binder material for the coating, and about 10% to about 98% of a fluid carrier, said applied coating having a thickness of less than about 20 microns.
Patent CA-2231298-A1 (CA)
Title: Retractable screen system and improvements therefor
Inventor: DAVIES SEAN
IPC: E06B9/54
Filed: 1998-03-05
Abstract: A continuous roll of screen which may be payed out from said roll by an installer or manufacturer to a required predetermined window size, or alternatively patio door size, said screen comprising a free end which allows the installer to pay the screen off of the roll upon which the screen is accumulatedcourse upon course, one end of said screen being disposed at the end of the courses accumulated on the roll from which the screening is payed off and the other end being a free end, said screen having side edges and preferably being manufactured from preferably vinyl-coated fiberglass, the edges of said screen having affixed thereto a generally preferably T-shaped key manufactured from a flexible material, for example polyvinyl chloride, which is affixed preferably by radio frequency welding (or RF welding) with the edges and preferably each of the edges, and in one embodiment at least one edge of said screen, wherein the vinyl coating provided on the screen melds with the polyvinyl chloride key to form a resilient anchor for the screen device within any screen roller assembly.
Patent CA-2233130-A1 (CA)
Inventor: BRADANINI KATHRYN
IPC: C09D10/00
Filed: 1998-03-25
Abstract: The invention is directed to a water based correction fluid that contains an anionic, self-crosslinking polymer resin having a glass transition temperature of no more than about -10°C, an opacifying pigment, and water.  The resin is present in a concentration of about 9 to about 25 percent by weight, preferably about 15 to about 19 percent, and the pigment is present in an amount of from about 40 to about 65 percent by weight, preferably about 52 to about 56 percent, based on the total weight of the water based correction fluid.  The pigment is normally titanium dioxide, and may also include at least one extender, such as natural ground calcium carbonate, precipitated calcium carbonate, or aluminum silicate.  The water based correction fluid of claim 1 generally includes up to about 0.01 percent by weight of a biocide and up to about 0.01 percent by weight of a toner, such as a dispersion of carbon black.  The water based correction fluid may optionally include up to 5 percent by weight of a freeze/thaw stabilizer, such as a glycol or an alcohol, up to about 5 percent by weight of a pH adjuster to adjust the pH to a range of from about 7.5 to about 10, up to 5 percent by weight of a dispersant, and up to about 5 percent by weight of a defoamer, and up to about 5 percent by weight of a low foaming anionic surfactant that has no cloud point.
Patent CA-2233181-A1 (CA)
Inventor: DE BERNARDI ERNESTO
IPC: G03D3/13
Filed: 1998-03-26
Abstract: Photographic material grasping and dragging device for photographic material developing machine, in particular of photographic paper, shaped as a fork provided with a first and a second portion (26, 27) respectively for the photographic material winding and for the hooking and unhooking with respect to the guide band (leader) of the machine. Device which comprises clamping means (grasping jaws 32) co-operating with the guide band (28) and sprung articulated means (31) adapted to drive the clamping means (32) from a first to a second operative position, in which they are respectively disengaged and engaged with respect to the guide band (28), and vice versa. Device which assures always a feed of photographic material at any operative condition and mechanical stress exerted by such material on the device referred to
Patent CA-2233940-A1 (CA)
Title: Gritting systems and methods
Inventor: WILLIAMS BRIAN
IPC: E01H10/00
Filed: 1996-10-07
Abstract: Methods and systems for controlled gritting of routes, e.g. roads, are disclosed. A gritting vehicle (3) has a continuously-operating position detection arrangement e.g. GPS and has an on-board information processor (MDT) in which route data such as forecast thermal map data are stored. The stored data can be transmitted to the vehicle (3) from a control station processor via a radio link. Real-time positional data are compared with the route data in the vehicle's processor and generate gritting instructions to control whether and how much grit is deposited at a given location. Positional and gritting status information may be transmitted back to the control station (1) progressively for recording. On-board sensors (S) may be used to supplement forecast data.
Patent CA-2235465-A1 (CA)
Title: Dispositif actif/passif pour la reeducation fonctionnelle des extremites des membres inferieurs et superieurs
Inventor: SARINGER JOHN H
IPC: A63B69/16
Filed: 1996-11-14
Abstract: L'invention concerne des dispositifs de mouvement passifs continus et actifs pour rééduquer et/ou soigner les extrémités des membres inférieurs et supérieurs. Ce type de dispositif comprend un cadre, un disque fixé en vue de sa rotation sur le cadre et des éléments de support des mains ou des pieds, fixés au disque. Un moteur est également prévu et couplé au disque pour assurer sa rotation en mode actif. Un circuit de commande permet de régler la vitesse du disque en mode passif et de régler la résistance au mouvement du disque en mode actif.
Patent CA-2240729-A1 (CA)
Title: Emploi d'un medicament et utilisation d'un melange de substances pour la production d'un medicament
Inventor: STEINBECK-KLOSE ANNEMARIE
IPC: A61K45/06
Filed: 1996-12-18
Abstract: L'invention concerne l'utilisation d'un médicament avec un mélange de substances et l'utilisation d'un mélange de substances à base de principes actifs de la plante hypericum (millepertuis) pour la production d'un médicament. On utilise depuis longtemps des extraits du millepertuis en médecine, mais jusqu'ici exclusivement dans l'éventail des indications des troubles psychogènes et du sommeil. Lesdits extraits contiennent de faibles quantités de diones polycycliques (hypéricine, pseudohypéricine et/ou des sels de celles-ci). Récemment, on a observé l'efficacité antivirale et plus particulièrement antirétrovirale de l'hypéricine et de la pseudohypéricine sous une forme très pure. L'administration de ladite préparation provoque toutefois des effets secondaires importants, ce qui interdit une utilisation thérapeutique de celle-ci. Dans le procédé d'utilisation selon l'invention, le principe actif hypéricine/pseudohypéricine n'est pas administré sous sa forme très pure mais mélangé avec d'autres constituants connus comme constituants de l'extrait végétal. La concentration d'hypéricine/pseudohypéricine est comprise entre 0,05 % et 50 %. Ainsi, on obtient un bon effet antirétroviral et on supprime dans une large mesure les effets secondaires indésirables.
Patent CA-2241260-A1 (CA)
Inventor: ARNAUD PASCAL
IPC: A61K8/894
Filed: 1998-06-25
Abstract: Cosmetic or dermatological composition containing as one ingredient at least one fluorinated alkylsilicone of formula (I) and/or (II): (I) in which R<1> and R'<1> independently = 1-6C linear or branched alkyl radical or phenyl; R<2> = R<1>, OH, or -(CH2)fRf in which f = a whole number 0-10; R<3> = 6-22C linear or branched alkyl; Rf = -(CF2)q-CF3 in which q = a whole number 0-15; m and n = a whole number 1-50 and p = a whole number 0-2000; (II) in which R<4> = 1-6 C linear or branched alkyl radical or phenyl; R<5> = 6-22 C linear or branched alkyl; R'F = -(CF2)s-CF3 in which s = whole number 0-15 and t = a whole number 1-2000.
Patent CA-2242882-A1 (CA)
Title: Gas delivery sensor and respiratory aid appliance comprising such a sensor
Inventor: CHALVIGNAC PHILIPPE
IPC: G01F1/40
Filed: 1998-07-06
Abstract: The invention comprises a gas delivery sensor, of the type in which two upstream (26) and downstream (28) pressure pick-up conduits, which are each connected to a pressure sensor, open into a gas flow duct, in which a permeable element (40) extends axially at least between opening ends (34, 36) of the two pressure pick-up conduits (26, 28), characterized in that the permeable element is produced in the form of a body (40) which has, in cross-section, a shape complementary to that of the duct (20) and which comprises slots extending radially about its axis (A1), so as to open radially onto an outer lateral surface (44) of the body (40), and in that the slots (42) extend axially over the entire length of the permeable body (40).
Patent CA-2246856-A1 (CA)
Title: Seal device between fastening bolt and bolthole in gas turbine disc
Inventor: CHIKAMI RINTARO
IPC: F01D5/10
Filed: 1998-09-11
Abstract: Seal device between fastening bolt and bolthole in gas turbine disc reduces cooling steam leaking from gap between the fastening bolt and the bolthole. In the gas turbine disc 31 carrying moving blades, fastening bolt 33 for fixing the disc 31 passes through in the bolthole 32. On low pressure side of the disc 31, bolthole diameter enlarged portion 39 having larger diameter than that d2 of the bolthole 32 is provided. Fastening bolt 33 is provided with shaft diameter enlarged portion 33a. Seal piece 1 is fitted at its one end around the shaft diameter enlarged portion 33a and is engaged at the other end with stepped portion of the bolthole diameter enlarged portion 39. In operation of gas turbine, the bolt 33 is biased outwardly by centrifugal force and the gap between the bolt 33 and the bolthole 32 deforms.      Nevertheless, the seal piece 1, having flexibility, deforms at bent portions R1 and R2 to maintain close contactability and steam 43 is prevented from leaking from high pressure side to low pressure part 38 and sealing ability is maintained.
Patent CA-2247900-A1 (CA)
Title: Methods and apparatus for particle precipitation and coating using near-critical and supercritical antisolvents
Inventor: RAJEWSKI ROGER A
IPC: A61K9/50
Filed: 1997-02-28
Abstract: Improved method and apparatus (110) for particle precipitation and coating using near- or supercritical fluid conditions. A fluid dispersion (128) having a continuous phase dispersant and at least one precipitable substance therein is contacted with a supercritical fluid (SCF) antisolvent (126) so as to generate focused high frequency antisolvent sonic waves, breaking up the dispersion into extremely small droplets. The enhanced mass transfer rates between the droplets and the antisolvent causes precipitation of very small particles on the order of 0.1-10 microns. In coating processes, a turbulent fluidized flow of core particles is created using SCF antisolvent in an enclosed zone. The core particles are contacted therein at or near supercritical conditions by fluid dispersion containing a dispersant and together with a precipitable substance. The antisolvent depletes the dispersant and the substance is precipitated onto fluidized particles.
Patent CA-2248138-A1 (CA)
Title: Combination computer mouse and game play control
Inventor: RIFKIN ANDREW
IPC: G06F3/033
Filed: 1997-01-31
Abstract: A computer mouse supports a body configuration to replicate a miniature automotive vehicle (31). The vehicle body includes a pair of push buttons for right and left operation (32, 33). The mouse further includes a conventional track ball unit together with conventional right and left click switches. A selector switch (53) supported upon the vehicle body figures the game play control for operation as a conventional computer mouse or a game play control unit. In the game play control position, a vibrating motor and sound system (60, 61) are operative to provide vehicle sounds and vibrations.
Patent CA-2251342-A1 (CA)
Title: Room temperature storable immunoglobulin preparation for intravenous injection
Inventor: UEMURA YAHIRO
IPC: C07K16/06
Filed: 1998-10-23
Abstract: A  method   for  producing   an   immunoglobulin preparation for intravenous injection, which comprises the steps of: fractionating an immunoglobulin-containing solution with 4 to 10 w/v% of polyethylene glycol having a molecular weight of from 1,000 to 10,000,  at a pH value of from 4.5 to 6.5,  an ionic strength of from 0.0001 to 0.1 M and a temperature of from 0 to 4°C to recover a supernatant fraction;  and concentrating the supernatant fraction at a pH of from 3.5 to 5Ø
Patent CA-2251883-A1 (CA)
Title: Electrical inverter with a silicon controlled rectifier full-bridge circuit
Inventor: WU FU NING
IPC: H02M7/521
Filed: 1997-03-18
Abstract: An inverter for converting a DC voltage into an AC voltage comprising a full-bridge circuit having four silicon controlled rectifier (SCR) switches, two pulse control circuits for generating control voltage signals to turn on alternate pairs of said switches, a time sequencing circuit, and a power switch circuit. The full bridge circuit is directly connected to a positive DC  input terminal and is coupled through the power switch circuit to a negative DC input terminal. The time sequencing circuit generates a first pulse signal for controlling the first pulse control circuit and a second pulse signal for controlling the second pulse control circuit so that the first pulse signal and the second pulse signal are in phase opposition. The time sequencing circuit further generates an intermittent cycle pulse signal for turning the power switch circuit off during periods between a pulse of the first pulse signal and a pulse of the second pulse signal. The inverter according to the present invention may be of a size and weight which are compatible for use in small type UPS systems, while still providing safe and reliable operation.
Patent CA-2256101-A1 (CA)
Title: Method for improving the accuracy of nmr relaxation distribution analysis with two echo trains
Inventor: GEORGI DANIEL T
IPC: G01R33/44
Filed: 1998-12-15
Abstract: The total porosity is calculated by summing over the effective porosity and the CBW porosity. With the correction described in this patent, an overcall of the total porosity from some part of the clay bound water signal being counted twice is avoided. The effect will be more significant in shaley sand where CBW porosity is abundant. The correct T2 distribution is essential to BVI and SBVI estimation. The same data correction concept can be applied to make a meaningful comparison of logs or laboratory core NMR data that are obtained with different sampling periods TE.
Patent CA-2256908-A1 (CA)
Title: Snow wings
Inventor: WESSMAN BRIAN
IPC: E01H5/06
Filed: 1998-12-21
Abstract: A pair of wing assemblies for attachment to a snow thrower or snow blower employing an impeller within a housing and having a forward opening therein to facilitate the feeding of snow to the impeller. The wing assemblies are each adjustably pivotally attached to a horizontal rack provided on each side of the housing. The position of each wing assembly is determined by the position of an arm connecting the back of the wing with the rack. In a first operative position, suitable for use after a light snowfall, the wings are positioned so as to diverge forwardly and thus increase the catchment area of the snow to be fed to the impeller, thereby improving the efficiency of operation of the snow thrower. In a second operative position, the wings are positioned so as to diverge rearwardly so as to push snow away from the snow thrower and increase the width of the path cleared. An inoperative third position with the wings folded laterally in front of the snow thrower permits compact storage of the snow thrower without having to remove the wing assemblies.
Patent CA-2257060-A1 (CA)
Inventor: CHAN ALBERT WAI
IPC: G04G13/02
Filed: 1998-12-30
Abstract: An alarm clock comprises two parts which can communicate with each other to perform certain actions at preset alarm times. When the current time and alarm time are set on one part, internal clocks in each part are synchronized to permit the parts to begin communication at preset times, or to perform certain actions at preset times even in the absence of communication, to simulate interaction. Audible simulated voice instructions may be used for ease of programming.
Patent CA-2261019-A1 (CA)
Inventor: KLEE GEORGE G
IPC: C07K16/40
Filed: 1997-07-15
Abstract: L'invention concerne des méthodes diagnostiques mettant en oeuvre des anticorps qui se fixent sur l'antigène prostatique phk2 ou hk2, mais ne réagit pas sensiblement au contact de l'antigène prostatique hk3. Le procédé est utilisé pour diagnostiquer le cancer de la prostate.
Patent CA-2262423-A1 (CA)
Title: Human monoclonal antibodies specific for hepatitis c virus (hcv) e2 antigen
Inventor: PERSSON MATS AXEL ATTERDAG
IPC: C07K16/10
Filed: 1997-04-18
Abstract: The present invention relates to compositions derived from immunoglobulin molecules specific for the hepatitis C virus (HCV). More particularly, the invention is related to molecules which are capable of specifically binding with HCV E2 antigen. The molecules are useful in specific binding assays, affinity purification schemes and pharmaceutical compositions for the prevention and treatment of HCV infection in mammalian subjects. The invention thus relates to novel human monoclonal antibodies specific for HCV E2 antigen, fragments of such monoclonal antibodies, polypeptides having structure and function substantially homologous to antigen-binding sites obtained from such monoclonal antibodies, nucleic acid molecules encoding those polypeptides, and expression vectors comprising the nucleic acid molecules.