baber/WOPTO huggingface dataset:
Patent CA-2221945-A1 (CA)
Inventor: TAKASHI SYUICHI
IPC: B24B19/22
Filed: 1997-11-21
Abstract: The present invention provides a polishing apparatus for optical fiber end surface making it possible to freely adjust the contact pressure between a polishing plane and the distal end face of a ferrule and capable of preventing a defective product from being produced under polishing.    A polishing apparatus for optical fiber end surface is constituted by including a base 14, a rotary disk 15 supporting a polishing member for forming a polishing plane and rotatably set to the base, ferrule holding means 21, 22, and 21A removably supporting one optical-fiber ferrule 23 or more, vertically guiding means 21, 22, and 21A vertically movably supporting the ferrule holding means in parallel with the polishing plane and moving between a preparation position and a polishing end position, urging means 33 and 34 for urging the vertically guiding means supporting the ferrule holding means 18 and 20 in the direction vertical to the polishing plane, vertically driving means 30 for vertically driving the vertically guiding means supporting the ferrule holding means 21, 22, and 21A, and a control circuit for driving the vertically driving means.
Patent CA-2223374-A1 (CA)
Inventor: WEST AL
IPC: F02D45/00
Filed: 1996-05-29
Abstract: L'invention concerne un procédé et un dispositif servant à déterminer si un véhicule, dont le moteur tourne, se trouve à un endroit particulier. Le dispositif comprend une antenne comportant un fil continu constituant au moins une boucle, ainsi qu'un moyen servant à déterminer quand l'antenne est exposée à un champ électromagnétique oscillant, dont la fréquence se situe entre 700 et 2100 Hz environ, et d'une intensité caractéristique d'un alternateur fonctionnant dans le voisinage de l'antenne. Dans un mode de réalisation préféré, ce dispositif de détection comprend, de plus, un moyen de génération d'un signal quand l'antenne est exposée au champ électromagnétique oscillant, dont la fréquence se trouve entre 700 et 2100 Hz environ, d'une intensité caractéristique d'un alternateur fonctionnant dans le voisinage de l'antenne, ledit signal étant utilisé en tant qu'entrée dans un système logique demandant que le signal ne soit pas généré, afin qu'un système de remplissage fasse le plein du véhicule dans le voisinage de l'antenne. Cette dernière est, de préférence, une antenne à boucle en 8 placée dans le trottoir au-dessous de l'emplacement où le véhicule est censé se trouver. Ce dispositif de détection est particulièrement efficace en tant qu'entrée permettant de mettre une pompe à essence hors service.
Patent CA-2223692-A1 (CA)
Inventor: LEE JAMES
IPC: A01N25/04
Filed: 1996-06-03
Abstract: An emulsified composition containing 1,4-bis(bromoacetoxy)-2-butene (BBAB) is disclosed which has the ability to disperse and/or dissolve uniformly in aqueous systems thereby effectively controlling the growth of microorganisms. The composition contains BBAB and a nonionic emulsifier. A method for inhibiting the growth of microorganisms with this composition in an amount effective to control the growth of microorganisms is also disclosed.
Patent CA-2226493-A1 (CA)
Title: Appareil de regulation et de pressurisation de pneus
Inventor: RENIER GRANT J
IPC: F04B35/00
Filed: 1996-07-05
Abstract: L'invention a pour objet un appareil (10) destiné à pressuriser un pneumatique (5) fixé sur la roue d'un véhicule (3, 11). Cet appareil comprend une pompe à air de type volumétrique (12) comportant un ensemble de piston chargé par ressort (16) et de cylindre (17) pour générer de l'air sous pression. La pompe à air (12) est fixée axialement (27) à la roue du véhicule (3, 11), et un conduit de raccordement à pression d'air (7, 15) introduit de l'air sous pression généré par la pompe dans le pneu (5). Une came (23) et un suiveur de came (28) sont prévus dans le carter (13) de la pompe (12) pour créer, entre les deux, un déplacement relatif commandé par came qui est utilisé pour entraîner la pompe à air (12). Un pendule (24) est fixé en vue de sa rotation axiale libre par rapport au carter (13) de pompe et le pendule (24) est relié à la came (23) ou au suiveur de came (28), tandis que l'autre élément est fixé au carter (13) de pompe en vue de sa rotation avec ce dernier pour assurer le mouvement d'entraînement commandé par came. L'axe (27) du mouvement alternatif du piston dans son cylindre (17) est sensiblement aligné axialement sur l'axe de rotation (27) de la roue (3, 11). En outre, le suiveur de came (28) est pourvu d'une surface (31) de suivi de rampe présentant des points de soulèvement maximal (31) et minimal (31) qui dictent les limites du déplacement alternatif du piston . Un gradin (29) est prévu dans la surface (31) du suiveur de came et relie les points maximal et minimal de soulèvement (31) pour assurer une course de compression rapide du piston (16) sous l'action de sollicitation exercée par le ressort.
Patent CA-2226798-A1 (CA)
Title: Tool case
Inventor: VASUDEVA KAILASH C
IPC: B25H3/00
Filed: 1998-01-13
Abstract: The case has a molded plastic card member, and a lid specifically configured to mate with the card member to define an enclosed area. The lid is connected to the card member by a hinge adjacent one edge thereof so as to be foldable between an open position away from the card member, and a closed position against the card member to define the enclosed area. The card member and the lid preferably each have tabs extending from side edges opposite the hinge, each tab having a hole generally alignable with a corresponding hole in the other tab, for the installing of a closure such as a thick plastic loop not generally severable without a tool. The card member and lid define between them a number of openings through the enclosed area particularly sized for portions of tool components and/or extra tool components to extend therethrough generally parallel to the card member, for visibility and preferably manipulation, without it beingpossible to remove them as long as the case is closed. At least one of the enclosed area and an area of the card member outside the enclosed area have tool components and/or extra tool components receivers configured such that removal of a tool component and/or extra tool components through the openings from the enclosed area is prevented when the lid is in the closed position, by a wall of a recess, or by a raised stop or the like.
Patent CA-2227399-A1 (CA)
Title: Wellhead equipment that use polymer sealing elements to seal off well pressure
Inventor: WIEDEMANN JIM LEE
IPC: E21B36/00
Filed: 1998-01-20
Abstract: Wellhead equipment includes a body having a drilling conduit passage, whereby drilling conduit is passed through the body. Polymer sealing elements are disposed within the body and disposed in relation to the passage to seal off well pressure. A circulation passage extends through the body in the vicinity of the polymer sealing elements. The circulation passage has an inlet and an outlet whereby warm fluid is circulated through the circulation passage from the inlet to the outlet thereby raising the temperature of the polymer sealing elements to improve their cold weather performance.
Patent CA-2227825-A1 (CA)
Title: Method of treating optical fibers and material for use as phase modulators and switches
Inventor: KINO GORDON
IPC: G02F1/355
Filed: 1997-06-03
Abstract: A process of poling a silica material such as an optical fiber whereby electro-optic non-linearities are induced so that the material can function as a phase modulator and switch in optical communications applications. The poling is effected at an elevated temperature on the order of 450 °C or higher, using an electric field on the order of 800 V/µm or higher for a period of time in the range of one minute to several tens of minutes.
Patent CA-2230430-A1 (CA)
Inventor: TZIDON AVIV
IPC: H04N9/75
Filed: 1998-03-31
Abstract: An improved method of tracking a camera in dynamic chroma-keying of the type in which a foreground object is photographed against a multicolored chroma-key screen. The multicolor patterns are created by projection oii a monochrome screen, for example by projecting light through a mask on a screen colored with the chroma--key color. The projection of multiple patterns can emulate the use of a single pattern having multiple levels of detail, and can enable lateral tracking of the camera. Sequentially projecting known transformations (for example, rotations) of a pattern adds an extra degree of freedom which further enhances the accuracy of the method.
Patent CA-2230614-A1 (CA)
Title: Non-foil polymer coated carton for packaging food and non-food products
Inventor: WHILLOCK ALAN A
IPC: B32B27/32
Filed: 1996-09-12
Abstract: A non-foil composite structure is provided having a substantial barrier to the loss of moisture, oxygen, and organic vapor and which is easily sealable with a shelf-life to at least one year for food and non-food products during dry shelf storage, and which is environmentally friendly. The laminate may have, from the outer atmosphere exposed surface to the inner surface contacting the contents of the container; a first exterior layer of a low density polyethylene polymer (22); a paperboard substrate (20); a first interior layer laminate coating of nylon (24) with a tie layer (26); a second interior layer of low density polyethylene polymer (28); a third interior layer of high density polyehtylene polymer (30); and an innermost and product contacting layer of low density polyehtylene polymer (32).
Patent CA-2231453-A1 (CA)
Title: Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it
Inventor: NAMBA TAKASHI
IPC: C09K23/00
Filed: 1996-05-30
Abstract: Disclosed herein are clathrate hydrate inhibitors and the method of inhibiting the formation, agglomeration, and deposition of clathrate hydrate using the inhibitors. The clathrate hydrate inhibitor comprises a macromolecular compound in which 3 - 15 membered ring pendant is connected to the polymer main chain via a specific spacer group such as homo- or co-polymer of (meth)acryloyl pyrrolidine, pyrrolidinocarbonylethyl (meth)acrylate, 2-oxo-pyrrolidino-ethyl (meth)acrylate, glyoxyloyl pyrrolidine, pyrrolidinocarbonyl aspartate.
Patent CA-2232750-A1 (CA)
Title: Peptides and peptidomimetics inhibiting the oncogenic action of p21 ras
Inventor: ABAJIAN HENRY BAXTER
IPC: A61K31/56
Filed: 1996-09-20
Abstract: The present invention provides peptides, cyclized peptides and peptidomimetics which inhibit the oncogenic and/or transforming activity of the p21 ras protein, pharmaceutical compositions containing at least one of the rasinhibiting peptides, cyclized peptides and peptidomimetics, and methods for inhibiting the ras-mediated oncogenic and/or transformation process in mammalian cells or tissues.
Patent CA-2234942-A1 (CA)
Inventor: POTTER MICHAEL D
IPC: G01B3/10
Filed: 1996-08-16
Abstract: An integrated system for measuring and marking on a surface (110) has a housing (15, 80), a measuring element (40) at least partially contained within the housing, and a marking element (60) for marking the surface. The system is characterized in that the marking element is initially retained within the housing (80) and is maintained in a spaced-apart relationship to the surface until a user moves the housing in a predetermined direction relative to the surface, whereupon the surface is marked at the measured point. The predetermined direction is preferably perpendicular toward the surface, and the marking element preferably operates through an aperture (70) in the bottom surface of the housing. Various embodiments have features including a cursor (30) aligned with which the marking element, a modular removable and replaceable marking element (60), and either a linear measuring tape or an arcuate angle-measuring element (40).
Patent CA-2235230-A1 (CA)
Inventor: MYERS RONALD GENE
IPC: H02M3/156
Filed: 1998-04-17
Abstract: A pulse load averaging power converter (10) provides low duty cycle, high amplitude power pulses while drawing substantially constant power from a power source.  A voltage peak detector (70) provides a pulse width modulator PWM (20) with a feedback signal proportional to the peak of the output voltage.  A regulated switching power converter (200) utilizes pulse load averaging power converter (10).  The resulting power converter provides high current, low duty cycle power pulses, while maintaining a substantially constant current draw on a battery (230).  An individual subscriber unit (400) which operates in a cellular communications system, utilizes pulse load averaging power converter (10) to prolong battery life.  Figure 1 to accompany abstract.
Patent CA-2235363-A1 (CA)
Title: Dispositif d'ajustement osseux
Inventor: MCCARTHY JOSEPH G
IPC: A61B17/60
Filed: 1996-10-18
Abstract: Procédé d'ostéogenèse en distraction angulaire consistant à percer des trous de broches osseuses dans le premier et le deuxième côtés d'un os segmenté, à introduire des broches dans les trous, à fixer les broches de chaque côté de l'os segmenté à un dispositif de distraction et à régler le dispositif de distraction, de sorte que la partie osseuse du premier côté de l'os segmenté ajuste sa position par rotation ou pivotement par rapport à la partie osseuse du deuxième côté de l'os segmenté, de façon précise, progressive et selon une augmentation prédéterminée, pendant la totalité d'une durée déterminée, de telle manière que le tissu osseux reste sain et que les vaisseaux sanguins, ainsi que les terminaisons nerveuses restent intacts pendant le processus de distraction par flexion. Dispositif servant à réaliser une ostéogenèse en distraction angulaire et possédant un élément de support s'étendant à travers un segment osseux, moyen servant à fixer le premier côté de l'os segmenté à l'élément de support et moyen d'ajustement angulaire de la première section d'os segmenté par rapport à la deuxième section d'os segmenté. Ce moyen d'ajustement angulaire comprend un engrenage et une vis de réglage coopérante qui fait tourner l'engrenage quand la vis est réglée, de manière à faciliter l'ajustement angulaire ou à faire tourner l'élément de support ou le moyen de fixation des morceaux d'os segmenté à l'élément de support de façon précise, progressive et selon une augmentation prédéterminée pendant la totalité d'une durée déterminée. Le moyen de fixation des morceaux d'os segmenté sur l'élément de support comprend des agrafes de broches osseuses qu'on peut régler de façon linéaire ou transformer en distances précises et progressives le long de l'élément de support. Dans un mode de réalisation, le dispositif possède deux bras, une articulation centrale servant à effectuer le réglage angulaire des deux bras et des deux agrafes de broches osseuses afin de fixer au moins une broche de chaque côté de l'os segmenté à un bras respectif. Les bras sont fixés à l'articulation centrale et effectuent un ajustement ou une rotation dans des plans orientés différemment et peut-être perpendiculaires l'un par rapport à l'autre, les agrafes de broches effectuant un mouvement de translation linéaire le long de chaque bras.
Patent CA-2236406-A1 (CA)
Inventor: ATALLA MARTIN M
IPC: H04L9/08
Filed: 1996-11-01
Abstract: Secure transmission of a message is achieved by using a one-time encryption key derived at the receiver and the sender from information present at both the sender and the receiver, but wherein the information from which the encryption key is derived is not transmitted between the sender and the receiver. A plurality of bytes, known as a master signature, is randomly generated and stored at the sender, wherein each byte is uniquely identified by an address. A first random subset of this plurality of bytes, called an access signature, and the addresses in the master signature of the bytes in this access signature, are stored at the receiver. To generate an encryption key, the receiver selects a second random subset of bytes, known as a session signature, from the access signature and sends the addresses in the master signature of the bytes in this session signature to the sender. The sender uses these addresses to identify the bytes in this session signature which bytes are used at both the sender and the receiver to derive the encryption key. If desired, these bytes can be used directly as the encryption key but preferably, these bytes are passed through a session signature-to-session key converter using an irreversible algorithm to generate a one-time encryption key to be used to encrypt the message to be sent between the sender and the receiver. The master signature can also be derived from the digitized video image of the user, which allows a card containing the master signature to be used as described above but also with a video monitor to visually identify the user.
Patent CA-2236491-A1 (CA)
Inventor: CLARY THOMAS A
IPC: F16G11/12
Filed: 1998-05-01
Abstract: A line in contact with an elongated mandrel has incremental lengths wrapped around the mandrel when the mandrel is rotated about a longitudinal axis.  The mandrel has at least one transverse handle receiving opening therethrough.  The handle when inserted into the handle receiving opening is employed to rotate the mandrel.  The device includes at least one member for engaging the line to prevent unwinding rotation of the mandrel.          The mandrel may also carry transverse flange plates to prevent the line from sliding off the mandrel.  And those flange plates may be adjustably positioned on the mandrel to accommodate lines of differing widths.
Patent CA-2238138-A1 (CA)
Inventor: ZINN NOEL DONALD
IPC: G01S5/18
Filed: 1998-05-20
Abstract: A high-order, polynomial regression curve is fitted to a global set of first-arrival pick times as a function of the nominal ranges between a plurality of acoustic sources having known geodetic coordinates and a plurality of acoustic detectors whose coordinates are imperfectly known.  The polynomial is applied to the pick times to provide pick time distances with the vertical velocity gradient removed.  The known source coordinates, the nominal detector coordinates and the pick time distances are combined to provide a quadratic surface to provide a common data block containing the coefficients for modeling the lateral velocity gradient. Using the so-determined coefficients, the imperfectly-known detector positions are iteratively updated using the Helmert blocking technique.
Patent CA-2240329-A1 (CA)
Inventor: MEHTA ATUL M
IPC: A61P25/28
Filed: 1998-06-11
Abstract: Dosage forms for oral administration of a methylphenidate drug are provided. The dosage forms provide a substantially immediate dose of methylphenidate upon ingestion, followed by one or more additional doses at predetermined times. By providing such a drug release profile, the dosage forms eliminate the need for a patient to carry an additional dose for ingestion during the day. The dosage forms and methods provided are useful in administering methylphenidate and pharmaceutically acceptable salts thereof, which generally require one or more doses throughout the day.
Patent CA-2240796-A1 (CA)
Title: Assembling set of elements for assembling scaffoldings
Inventor: BESANA MARCELLO
IPC: H01M50/262
Filed: 1998-06-16
Abstract: An    assembling   set    for    assembling scaffoldings for housing electric batteries comprises coupling  elements for coupling uprights  and cross-members each including a pair of symmetrical  section members   which  can  be  adjoined  one  another  and provided  with  a perforated  portion,  for  engaging therein a screw and locking nut, as well as a pair of L-shape  portions coupling each  perforated  portion, thereby,  as  the  section members  are  adjoined,  a cross-member  receiving  recess is  defined  therein. Each  cross-member  is provided in  its  inside  with threaded  elements, coaxial therewith,  and  provided for  receiving a connecting screw for connecting  the cross-member to a corresponding support element.  The supporting  feet  comprise  a  screw  embedded  in  a supporting element contacting the ground and a ring-nut  engaging with said screw in order to adjust  the height of the supporting element associated with said foot element.
Patent CA-2242018-A1 (CA)
Title: Composition de beton renforcee par des rubans metalliques, son procede de preparation et pieces obtenues a partir de cette composition
Inventor: PEIFFER GILBERT
IPC: E04C5/01
Filed: 1998-06-25
Abstract: La présente invention a pour objet une composition de béton renforcée par des fibres métalliques de structure amorphe comprenant en outre au moins du ciment, des éléments granulaires, des éléments ultrafins, de l'eau et u n agent dispersant caractérisée en ce qu'elle comprend à titre de fibres métalliqu es, au moins 4 à 40 % en masse de rubans métalliques. Elle se rapporte également à un procédé de préparation de ladite composition et aux pièces de béton obtenues par durcissement de cette composition.
Patent CA-2242166-A1 (CA)
Title: Display techniques for three dimensional virtual reality
Inventor: CARRARO GIANPAOLO U
IPC: G06T15/10
Filed: 1998-06-30
Abstract: A limitation of a three-dimensional world in which objects in the distance may be represented in only two dimensions as a video on a screen occurs when a computer graphic object represented by computer graphics, e.g., in front of, to the side, above, or below the video screen, undergoes a trajectory that takes it to a location in the world that is not represented as computer graphics, but instead is within the field represented by the video, because such an object would disappear from view by the viewer. This limitation is overcome by having such an object be represented as video on the screen, rather than computer graphics. Thus, the computer graphics object "goes into the video" as video and remains visible to a viewer in front of the video screen, rather than becoming invisible because it is blocked from view by the video screen if it were to be generated at its proper location using computer graphic techniques.
Patent CA-2242877-A1 (CA)
Title: Integrin receptor antagonists
Inventor: BRASHEAR KAREN M
IPC: C07D401/12
Filed: 1997-01-13
Abstract: Fibrinogen receptor antagonists having formula (I), for example (a), which are useful for inhibiting the binding of fibrinogen to blood platelets and for inhibiting the aggregation of blood platelets.
Patent CA-2243938-A1 (CA)
Title: Rock bit cutter retainer
Inventor: PRICE RANDALL R
IPC: E21B10/20
Filed: 1998-07-28
Abstract: A novel split threaded ring bearing member for rolling cutter drill bits with at least a portion of its threads having a different pitch than its mating threads is disclosed. The pitch difference is designed so that the threaded ring can be seated or otherwise located precisely with respect to the other bearing elements within the drill bit to effectively control the axial displacement of the rolling cutter on the bearing spindle within a given tolerance range. Upon assembly, the difference in thread pitch causes the opposite, opposing mating thread flanks to engage, effectively applying a tensile or compressive force to a portion of the threaded ring bearing member, which gradually increases as the assembly is tightened. The result is an improved rolling cutter drill bit with a threaded ring cutter bearing system with excellent resistance to back-off which will not allow significant radial movement between the engaged threads, even if some back-off of the threads occurs.