baber/WOPTO huggingface dataset:
Patent CA-2173786-A1 (CA)
Inventor: IKEDA KYOICHI
IPC: G01L19/04
Filed: 1996-04-10
Abstract: This is a semiconductor differential pressure measuring device comprising two measurement diaphragms and two detection sensors provided in a semiconductor substrate using micromachining techniques, and a computing circuit which computes the differences between these two sensor outputs: for each of the two measurement diaphragms, the measuring pressure transmission communicating hole being provided respectively so that these two measurement diaphragms operate in opposite phases by the differential pressure; and the above two sensors being provided on each relevant measurement diaphragm and detecting the displacement or strain of each measurement diaphragm generated by the differential pressure applied to each measurement diaphragm. Detecting the differences in the displacement or strain of each of these two measurement diaphragms cancels the static pressure error and temperature error and, thus, offers a semiconductor differential pressure measuring device which is excellent in temperature and static pressure characteristics. Further, the computing circuit can be configured simply by composing a required bridge circuit using at least one first sensor and one second sensor, each located on each of the two measurement diaphragms, leading to a reduction in manufacturing costs.
Patent CA-2174500-A1 (CA)
Inventor: KINSMAN GRANT
IPC: B23K26/03
Filed: 1994-10-24
Abstract: L'invention concerne un procédé et un dispositif servant à commander en temps réel des variables de traitement au laser de matériaux au moyen de processus de commande à base de logique floue réunis sous forme de base de règles à l'intérieur d'un contrôleur à logique floue. Le procédé met en application un détecteur de lumière visible faisant partie de la boucle d'asservissement, afin de détecter la lumière émise par la roue d'interaction laser-matériau. La lumière est traitée, de façon à extraire l'information spatiale concernant la dimension de la zone d'interaction et, dans un mode de réalisation, à déterminer le nombre de pixels brillants au-dessus d'un nombre prédéterminé, ce qui indique la portée spatiale ou la zone de lumière visible émise par la zone d'interaction. On obtient deux variables d'entrée à partir de ce traitement élémentaire, notamment le nombre courant de pixels brillants #BP et la modification de ce nombre depuis le dernier calcul .DELTA.BP. Ces variables d'entrée sont introduites dans le contrôleur à logique floue, de manière à effectuer une déduction, la sortie étant utilisée pour commander une variable de traitement laser, telle que la puissance du laser, l'intensité du laser et la vitesse de traitement. On peut utiliser plus de deux variables, afin d'augmetner la stabilité du système. La combinaison du contrôleur à logique floue et d'un processeur d'image permet de commander la pénétration de soudure d'une tôle en acier à une vitesse de 28 Hz.
Patent CA-2176258-A1 (CA)
Title: Device and method for photoactivation
Inventor: SIMMS ROMILLY JOHN
IPC: A61K41/00
Filed: 1994-11-03
Abstract: Methods and compositions are described for treating contaminants in material intended for in vivo use, and in particular blood and blood products for human use.  Contaminants in blood cell preparations are inactivated prior to long term storage and transfusion. Inactivation is accomplished using a device having a unique temperature control design.
Patent CA-2178248-A1 (CA)
Inventor: JANISCH KLAUS
IPC: F16K31/44
Filed: 1996-06-05
Abstract: A manual control unit (30) is connected via a pressure water supply line (104), a return line and two control lines, all of which run within a spiral hose (28), to a valve device of a bath tub lift, which features two hydraulically actuated working valves, so as to fill or empty a lifting hose of the bath tub lift. The manual control unit (30) contains a valve spool (50) which is pushed into its central position by two compression springs (96, 98), in which position the two control lines are depressurised. Swivelling the handle (42) from its neutral position causes the valve spool (50) to be displaced so that a control line is opened to admit pressure water. The manual control unit is small in size, can be manufactured cheaply and is easy to dismantle for maintenance purposes.
Patent CA-2179251-A1 (CA)
Title: Adaptive switch resource allocation in a satellite communication system
Inventor: JAN YIH GUANG
IPC: H04B7/185
Filed: 1996-06-17
Abstract: A telecommunication network (10) includes satellites (12) in which cellular base station switches (42) are located. Each switch (42) is hardware configured to require the use of relatively few interconnection segments (72) but would suffer a significant amount of call blocking if operated in a conventional manner. A new call setup process (96) is performed whenever a request to setup a new call is received at the switch (42). The process (96) defines new connections through switch 42 for ongoing calls while simultaneously defining a new connection for the new call. In addition, the process (96) forces the new connections to use only those interconnection segments (72) that are reasonably required to implement the new connections. Segments (72) that are not required are deactivated (128) to reduce power consumption.
Patent CA-2181102-A1 (CA)
Inventor: WILKINSON DANIEL JR
IPC: B23B31/26
Filed: 1996-07-12
Abstract: An apparatus and method for securely, mechanically retaining an elongated tool holding arbor in the tapered bore formed in the spindle of a conventional, rotatable, power driven spindle machine.  The arbor is mechanically secured to the spindle by bridging it to a key via a threaded fastener.   The arbor includes a longitudinal hole formed therethrough having at least first and second concentric passageways of different diameters.   The rectangularly shaped key is sized to be operatively received within and set upon shoulders formed by first and second diametrically opposed openings formed through the spindle.  The key includes a tapped hole formed centrally, transversely therethrough. The arbor may be inserted into the spindle's bore, and a fastener having an enlarged head and a threaded shaft may be inserted through the arbor's hole with the threaded shaft passing freely through both first and  second  passageways,  and  the  head  passing  through  the  first passageway but not the second.   An allen head wrench may then be inserted through the arbor's hole until it engages the head of the fastener.  By rotating the wrench clockwise, the threaded shaft portion will engage the tapped hole formed through the key, thereby bridging the arbor to the key.  The wrench should be continuously rotated until the key and arbor are mechanically secured to the maximum extent possible.
Patent CA-2181134-A1 (CA)
Inventor: PASENOK SERGEJ
IPC: C07C17/16
Filed: 1996-07-12
Abstract: Process for the Selective Preparation of Monofluoro Derivatives Process for the preparation of compounds of the formula (1)                     (1) in which R1, R2 and R3 independently of each other are H, C1-C12-alkyl, PhCH2, CH2=CH-CH2, C5-C7-cycloalkyl, C6-C12-aryl, C6F5-, -CO2C2H5 or where two of the radicals R1, R2 or R3 together are = O, which comprises reacting alcohols or carboxylic acids of the formula (2)             (2) in which R1', R2' and R3' independently of each other are H, C1-C12-alkyl, PhCH2, CH2=CH-CH2, C5-C7-cycloalkyl, C6-C12-aryl, C6F5-, -CO2C2H5 or where two of the radicals R1', R2' or R3' are = O, with a fluorinating agent of the formula (3)             (3) where X = P, N, P (NR2) 3 or As and R = C1-C4-alkyl.
Patent CA-2181248-A1 (CA)
Title: Golf accessory
Inventor: BLOMGREN HANS
IPC: A63B57/00
Filed: 1995-01-24
Abstract: A golf accessory (10) is disclosed in the form of an elongate pitch mark repairer (12) extending along a longitudinal axis (14). The pitch mark repairer has a pair of spaced-apart prongs (16) extending from a body portion (18). The body portion (18) presents a transversely extending axis (20) about which a tee (22) is pivotally disposed.
Patent CA-2182816-A1 (CA)
Title: Microphone arm assembly
Inventor: VAGENAS TASSO
IPC: H04R1/00
Filed: 1996-08-07
Abstract: This invention relates to a hands-free microphone arm assembly of the type used for cellular phones and two-way radios for mounting in a vehicle. It comprises a base and an arm with a microphone on its free end. The arm is universally mounted for adjustment with respect to the base to dispose the microphone in proximity to the user's lips sufficiently close to transmit the user's voice in use and the microphone has a circuit that includes a microphone load of a magnitude to reduce microphone efficiency in use, thereby substantially eliminating transmission of ambient noise.
Patent CA-2185874-A1 (CA)
Title: Two-cycle internal combustion engine
Inventor: ISHIBASHI YOICI
IPC: F02B61/02
Filed: 1996-09-18
Abstract: A two-cycle internal combustion engine capable of preventing the blow-by phenomenon, thereby improving both fuel economy and exhaust purifying performance, and being superior in the responsivity of fuel injection volume. The two-cycle internal combustion engine includes a chamber 29 disposed in scavenging passages 14, 15 which provide communication between a crank chamber 9 and a combustion chamber 6. Sealable control valves 26 and 33 are disposed in an inlet and an outlet, respectively, of the chamber 29, and a fuel feeding system 37 for the supply of fuel into the chamber 29 is provided. The invention is characterized in that the chamber 29 is brought into communication with one scavenging passage 18 out of a plurality of parallel scavenging passages, and the control valve 33 disposed in the chamber outlet, which is on the combustion chamber side and on a scavenging downstream side, is positioned at the bottom part of the scavenging passage 18 communicating with the chamber 31 with respect to the control valve 26 disposed in the chamber inlet which is on the crank chamber side.
Patent CA-2186334-A1 (CA)
Inventor: PECORE RICK ALAN
IPC: G06F12/06
Filed: 1996-09-24
Abstract: A processing system including a processor and a peripheral wherein a configuration input of an address decoder or a device address input of a peripheral device which is not needed to set the peripheral's device address is used to increase the input capability of the processor.  A data input signal is coupled to the configuration input or to the device address input such that the peripheral has a plurality of possible device addresses dependent on the state of the data input signal.  The processor is configured to attempt communication with the peripheral by checking the plurality of possible device addresses of the peripheral until the peripheral gives a response to the processor. The device address to which the peripheral responds represents the state of the data input signal.
Patent CA-2186640-A1 (CA)
Inventor: COUTURE PIERRE
IPC: H02K15/06
Filed: 1995-05-12
Abstract: La section de conducteur est pour une armature de stator d'une machine dynamoélectrique polyphasée. L'armature de stator est munie d'une série d'encoches parallèles allongées pour recevoir respectivement des sections de conducteur. La section de conducteur comprend deux côtés parallèles (6, 8) de section rectangulaire adaptés pour se loger respectivement dans les encoches parallèles correspondantes de l'armature de stator, les deux côtes définissant un plan. La section de conducteur comprend également au moins une tête de conducteur de section rectangulaire (10) reliant deux extrémités adjacentes des deux côtés parallèles. La tête montre un corps en forme de U selon une vue de dessus perpendiculaire au plan, et un corps ondulé selon une vue de face contenu dans le plan. La tête a des surfaces opposées supérieure et inférieure. La surface supérieur fait face à un côté du plan alors que la surface inférieure fait face au côté opposé du plan Avantageusement, la section de conducteur permet simultanément d'augmenter l'efficacité d'un moteur grâce à un facteur de remplissage élevé de ces côtés dans les encoches du stator, et d'avoir des sections avec des petites têtes pour diminuer le poids du moteur et les pertes de chaleur.
Patent CA-2188672-A1 (CA)
Title: Methods for inducing t cell tolerance to a tissue or organ graft
Inventor: NOELLE RANDOLPH J
IPC: C12R1/91
Filed: 1995-04-25
Abstract: Methods for inducing T cell tolerance to a tissue or organ graft in a transplant recipient are disclosed. The methods involve administering to a subject: 1) an allogeneic or xenogeneic cell which expresses donor antigens and which has a ligand on the cell surface which interacts with a receptor on the surface of a recipient T cell which mediates contact-dependent helper effector function; and 2) an antagonist of the receptor which inhibits interaction of the ligand with the receptor. In a preferred embodiment, the allogeneic or xenogeneic cell is a B cell, preferably a resting B cell, and the molecule on the surface of the T cell which mediates contact-dependent helper effector function is gp39. A preferred gp39 antagonist is an anti-gp39 antibody. The allogeneic or xenogeneic cell and the gp39 antagonist are typically administered to a transplant recipient prior to transplantation of the tissue or organ. The methods of the invention can be used to induce T cell tolerance to transplants such as liver, kidney, heart, lung, skin, muscle, neuronal tissue, stomach and intestine. A method for treating diabetes comprising administering to a subject allogeneic or xenogeneic cells expressing donor antigens, a gp39 antagonist and pancreatic islets is also disclosed.
Patent CA-2191672-A1 (CA)
Title: Magnetoresistive device incorporating conductor geometry providing substantially uniform current flow for improved magnetic stability
Inventor: BHARTHULWAR SHRIDHAR
IPC: H01L43/08
Filed: 1996-11-29
Abstract: A magnetoresistive ("MR") device incorporating an improved  conductor  geometry  to  provide  enhanced magnetic stability by providing essentially uniform current flow through the device active region in order to effectively obviate the formation of undesired domain   walls,   particularly   during   read  back operations.  A pair of current conductors are provided in electrical contact with the magnetoresistive device and   configured   to   provide   current to   the magnetoresistive device at an angle of less than 90° to the easy axis.
Patent CA-2192271-A1 (CA)
Inventor: CHEN NING
IPC: C08F220/20
Filed: 1996-12-06
Abstract: A process is provided for the synthesis of N-vinylformamidopropionates by the reaction of NVF with acrylic and methacrylic acid esters in the presence of a metal hydride catalyst. This process allows for the improved production of mono-functional monomers and also for the synthesis of new multi-functional monomers which are useful as crosslinkers and chain extenders in photo-cure applications.
Patent CA-2192900-A1 (CA)
Inventor: MARTIN SCOTT D
IPC: B23P15/28
Filed: 1996-12-13
Abstract: Methods for preparing a cutting tool substrate material for diamond coating include providing a grooved pattern on selected portions of at least the top surface and preferably also the sides of the substrate material. The pattern may be a cross-hatching, a diamond-hatching, or another design. The pattern is preferably applied to the tool substrate by scribing with a laser ablation tool. The pattern is designed to optimize adhesion of CVD diamond on the portions of the tool substrate which areexpected to be most challenged during a cutting process. The dimensions of the pattern (e.g. the depth and spacing of scribe lines) are selected to provide the optimum combination of mechanical bonding and diamond nucleation during the CVD coating of the tool substrate. According to preferred aspects of the invention, the pattern is applied only to the portions of the surface not immediately adjacent to the cutting edge of the tool substrate, thereby sparing the geometry of the cutting edge itself. According to a one embodiment of the invention, the pattern includes a cross hatch on the top surface and on the side surfaces of the substrate. According to a another embodiment, the top surface is cross hatched in the center while the corners of the top surface are provided with parallel grooves. In another embodiment, the side surfaces are provided with parallel grooves parallel to the top surface.
Patent CA-2193368-A1 (CA)
Inventor: DELMAS MICHEL
IPC: C14C3/06
Filed: 1995-06-14
Abstract: Masking product for a chromium sulphate-based tanning agent ensuring the delayed association of chromium ions in solution to promote their absorption into the materials to be tanned. Said product comprises a mixture of alkaline formate and alkaline sulphite reacting synergically to ensure that the chromium sets almost completely and irreversibly on the skins. The invention is characterized by almost complete burnup of the tanning baths and a subsequent low salting out rate.
Patent CA-2195501-A1 (CA)
Title: Sole for a sport shoe
Inventor: DONNADIEU THIERRY
IPC: A43B13/12
Filed: 1997-01-20
Abstract: The boot sole consists of a front section (2) and a rear section (3) which covers at least the underside of the heel. The rear section is rigid, having a module of elasticity of 260 MPa to 200 GPa, and extends forwards as far as the metatarsal-phalangeal joint zone (5). The front and rear sections of the sole overlap where they join over a length (L) in or to the rear of the metatarsal-phalangeal joint zone. The front section has a connector for attaching to a ski and its lengthwise median axis lies at an angle to that of the rear section, while the latter can be made in one piece with a heel stiffener on the upper.
Patent CA-2198843-A1 (CA)
Title: Ejector device
Inventor: SAND KJELL
IPC: B65H54/88
Filed: 1995-07-31
Abstract: An ejection nozzle for transport of fibre thread pieces by means of com-pressed air, e.g. reinforcement material for manufacturing fibre reinforced plastic products, from a cutter to a moulding cavity. The nozzle is provided with a common flow duct for the compressed air and the fibre thread pieces. The flow duct runs past at least one reflector surface (15) for the air flow, and at least one opening (16) for evacuation of air to the surroundings is located along the flow duct.
Patent CA-2200257-A1 (CA)
Title: Downhole tool apparatus and method of limiting packer element extrusion
Inventor: HUSHBECK DONALD F
IPC: E21B33/129
Filed: 1997-03-18
Abstract: An improved downhole tool apparatus and method for limiting the extrusion of packer element seals of packers and bridge plugs which utilize segmented packer retaining shoes when such tools are of larger diameters, or when used at elevated differential pressures or elevated temperatures. Preferably the segmented packer shoes incorporate a plurality of gap-bridging disks to limit if not eliminate unwanted extrusion of the packer elements upon setting of the tool. By making the packer element shoes and disks of non-metallic material, the subject invention increases the ability to drill or mill downhole tools out of a well bore in less time than it would take with using conventional or non-conventional drilling or milling techniques or equipment while providing enhanced high temperature and high pressure performance, especially in larger nominal outside diameter downhole tools.
Patent CA-2202915-A1 (CA)
Inventor: ASSMUNDSON JARL
IPC: F16B23/00
Filed: 1995-10-16
Abstract: L'invention concerne un élément de fixation possédant une fonction de limitation de couple et comprenant, d'une part, un élément de fixation (2, 2') comportant des filets (4) exerçant un effet dans la fonction de fixation de l'élément et, d'autre part, un élément de serrage (3, 3') conçu pour être tourné à l'aide d'une clé à vis, d'un tournevis ou d'un autre outil de serrage de l'élément de fixation (1, 1') et s'accouplant à l'élément de fixation (2, 2') par l'intermédiaire d'un raccord fileté (5, 6/17, 18) transmettant un couple avec une force suffisante, de façon à pouvoir transmettre à l'élément de fixation un couple de la dimension pour laquelle l'élément de fixation est conçu, l'élément de serrage étant conçu pour être dévissé et tourné par rapport à l'élément de fixation, lorsqu'on serre ce dernier, uniquement quand le couple dépasse une limite prédéterminée. Les filets (5, 6/17, 18) du raccord fileté s'orientent dans un sens contraire à celui des filets (4).
Patent CA-2204153-A1 (CA)
Title: Hydrophobic peroxyacid bleach precursor compositions stabilised with a water soluble carboxylic acid
Inventor: HARTSHORN RICHARD TIMOTHY
IPC: C11D3/39
Filed: 1995-11-14
Abstract: There is provided a peroxyacid bleach precursor composition, and detergent composition containing it, comprising: a) a particulate peroxyacid bleach precursor of a size less than 100µm and selected from precursors which produce under perhydrolysis hydrophobic peroxyacid whose parent carboxylic acid has a critical micelle concentration less than 0.5 moles/litre; and b) a water-soluble organic acid compound; wherein said precursor and said organic acid are in close physical proximity. The compositions of the invention show enhanced storage stability as well as an enhanced perhydrolysis rate.
Patent CA-2204455-A1 (CA)
Inventor: BERIAULT RICHARD
IPC: H04W84/12
Filed: 1997-05-05
Abstract: A base station, having a processor, memory and software, for a local area network, includes means for interfacing with a PC having a traditional human input device,  a wireless interface for bidirectional communication with an equivalent auxiliary  wireless  human  input  device  and  means  for concurrently supporting the traditional human input device and the equivalent auxiliary wireless human input device. A method for using a base station to control traffic on a wireless LAN by assigning source and destination addresses based on device IDs and routing data between sources and destinations, the base station dynamically supporting a wireless keyboard and a PC's local human input/output devices, the LAN including a PC and a wireless keyboard, includes the steps of:  when the wireless keyboard is inactive, the PC receiving input device commands from the local keyboard/mouse/game port, all dual input/output ports of the base station being in loop mode; when the wireless keyboard  is  active  and  in  configuration  mode,  the  base station's RF transceiver receiving input device commands from the wireless keyboard, the data stream being de-modulated then de-packetized and used to control the base station, and the base station providing on-screen menus on a previously selected channel and help to guide the user through the configuration; when the wireless keyboard is active and in normal mode, the base station's RF transceiver receiving the keyboard/pointing device/game port inputs from the wireless keyboard, the data stream being de-modulated then de-packetized and forwarded to the PC onto the appropriate connector or as USB devices through the USB connector instead of the PC's local human input device, the base station converting the PC's VGA/SVGA signals to NTSC/PAL video and mixing it with the PC's audio signal to produce a full NTSC/PAL signal which is then modulated to the previously selected channel.
Patent CA-2204855-A1 (CA)
Title: Carrier with preformed end panels
Inventor: SUTHERLAND ROBERT L
IPC: B65D5/00
Filed: 1996-07-02
Abstract: An article carrier (10) which includes a handle (32) connected to and extending between opposite side panels (20). End panels (22) of the carrier are divided into halves by vertical fold lines (28), and the handle includes a fold line (38) which lies in the same plane as the end panel fold lines. This construction allows a collapsed carrier to be squared up from a folded condition. The carrier may take the form of a wrap-around carrier having a top panel or an open-top basket-style carrier (64).