baber/WOPTO huggingface dataset:
Patent CA-2297709-A1 (CA)
Inventor: AKROUF ALI
IPC: H04M1/72513
Filed: 2000-02-02
Abstract: A symmetrical communication protocol allows handsets to operate as a master unit or a slave unit and operate independently of any base station.  Remote units may contact each other directly with the calling unit being temporarily designated as a master unit and the called unit being designated temporarily as a slave unit. A wireless communication link is established between the two units and the units frequency-hop in synchronization in accordance with FCC requirements.  The units independently monitor tile signal strength of the incoming signal and can transmit power change commands to the other unit to increase or decrease transmission power as required. A calling unit initially transmits a call request on a limited number of the available frequency channels in order to decrease the acquisition time period. An idle unit has a sleep cycle and an awake cycle. When entering the awake cycle, the idle unit is programmed for operation at one of the acquisition channels and monitors for an incoming data frame intended for that unit. If a data frame is not detected, the unit returns to the sleep cycle. If a data frame is detected, the handsets synchronize and communicate over the entire range of operational frequency channels utilizing a predetermined pseudo-random sequence.
Patent CA-2297820-A1 (CA)
Title: Methods for improving meat tenderness and related meat products and feedstuffs
Inventor: OWENS FREDRIC N
IPC: A23K1/16
Filed: 1998-07-23
Abstract: A method for increasing the tenderness of livestock meat tissues and meat products produced from animals treated in accordance with the method. The method involves increasing the calcium concentration in livestock muscle tissue prior to harvest of the animal to a degree sufficient to activate or enhance postmortem tenderization mechanisms. This is accomplished, most preferably, through the administration of Vitamin D, its analogs or derivatives, or combinations thereof, at concentrations above those required nutritionally to livestock in order to decrease shear force (increase tenderness) of meat tissues. Feedstuffs doped with the supplement are also provided.
Patent CA-2298815-A1 (CA)
Title: Capacitive pressure sensor cells or differential pressure sensor cells and methods for manufacturing the same
Inventor: VELTEN THOMAS
IPC: G01L13/06
Filed: 2000-02-16
Abstract: These capacitive pressure sensor cells have joints between substrates and diaphragms being both pres-sure- and/or tension-proof and high-vacuum-tight and long-term-stable.      The sensor cell comprises a ceramic substrate (1) having a cylindrical surface (11), a major surfaces (12, 13). The major surface (12) includes a concave central area (121) merging, in the direction of and up to said cylindrical surface (11), into a convex surface (124) having a vertex line (125) and forming a planar ring surface (126) in its area. An electrode (122) is located in the concave area (121). An electrical connection (123) extends from electrode (122) through the substrate (1) to surface (13). A ceramic diaphragm (5) has a planar inner surface (51) on which an electrode (52) is located and which rests on the ring surface (126) of the substrate (1). The diaphragm (5) is joined to the substrate by an active brazing solder forming a circumferential wedge zone (91) in the area of the substrate between the ring surface (126) and the cylindrical surface (11). An electrical connection to the electrode (52) is made through the wedge zone (91).       Respective differential pressure sensors can comprise a central substrate (2) and two outer diaphragms (61, 71) or a central diaphragm (8) and two outer substrates (3, 4).
Patent CA-2299120-A1 (CA)
Title: Paper cup bottoms and methods and apparatus for forming same
Inventor: BROWN DAVID C
IPC: B31B50/00
Filed: 2000-02-17
Abstract: A bottom for a paper cup is formed by advancing a punch against a paperboard web to push the web against a cutting edge which cuts out a circular cup bottom blank from the web. The punch is kept in a forward state to clamp an outer peripheral portion of the blank immovably against a surface of a sleeve. A reciprocable draw is advanced against a center portion of the blank to push the center portion into a circular opening of the sleeve while maintaining the clamping force, to cause the center portion of the blank to become stretched. The clamping force is then progressively released to permit the outer peripheral portion to enter the opening and become bent to form a lip extending at a substantially right angle. The lip is compressed within a gap formed between the draw and a surface of the opening. Because of the stretching of the blank, pleats formed in the lip are only in the form of micropleats that are flattened in a non-folded over state.
Patent CA-2299653-A1 (CA)
Inventor: VANDERLINDEN ROGER P
IPC: E01H1/04
Filed: 2000-02-22
Abstract: A debris lifting apparatus for use in a surface sweeping vehicle comprises an isolated debris lifting receptacle mounted on the surface sweeping vehicle for arrested positioning in a lower debris receiving position, whereat the debris lifting receptacle is disposed to receive and retain the debris propelled forwardly by a rotating sweeping broom, and for positioning in a raised debris dumping position, whereat the debris lifting receptacle is disposed to dump the debris into a hopper. A drive mechanism mounted on the surface sweeping vehicle is connected in driving relation to the debris lifting receptacle to effect movement of the debris lifting receptacle between the lower debris receiving position and the raised debris dumping position. A dumping mechanism mounted on the surface sweeping vehicle effects dumping of the debris from the debris lifting receptacle into the hopper when the debris lifting receptacle is in the raised debris dumping position. A method of lifting debris into the hopper of a surface sweeping vehicle comprises the steps of arrestedly positioning an isolated debris lifting receptacle in a lower debris receiving position; propelling debris via a rotating sweeping broom; receiving the forwardly propelled debris in the debris lifting receptacle; transferring the debris lifting receptacle to a raised debris dumping position, while the rotating sweeping broom is propelling the debris forwardly; dumping debris from the debris lifting receptacle into the hopper; and returning the debris lifting receptacle to the lower debris receiving position; and, repeating the above steps during the operation of the surface sweeping vehicle.
Patent CA-2300276-A1 (CA)
Title: Procede de phosphatation accelere par n-oxydes
Inventor: MAYER BERND
IPC: C23C22/36
Filed: 1998-07-25
Abstract: L'invention concerne une solution de phosphatation acide aqueuse contenant entre 0,2 et 3 g/l d'ions de zinc, entre 3 et 50 g/l d'ions de phosphate, figurant sous PO¿4??3-¿, ainsi que comme médiateur, entre 0,05 et 4 g/l d'un N-oxyde organique. Le N-oxyde est de préférence sélectionné dans les N-oxydes substitués ou des pyridines et des morpholines non substituées, notamment dans le groupe de pyridine-N-oxyde, 2-méthylpyridine-N-oxyde, 4-méthylpyridine-N-oxyde, morpholine-N-oxyde et N-méthylmorpholine-N-oxyde. La solution de phosphatation contient comme comédiateur, de préférence du chlorate, du peroxyde d'hydrogène, de la nitroguanidine et/ou du sulfonate de m-nitrobenzène.
Patent CA-2302938-A1 (CA)
Inventor: WILLAUER DARRIN L
IPC: E21B33/127
Filed: 2000-04-05
Abstract: A compensating system for an inflatable element is disclosed which can be responsive to a temperature increase or decrease and still regulate the inflate pressure of the inflatable element, despite fluctuations in pressures above or below the element. A compensating piston with an atmospheric chamber is used. The compensating piston is coupled to a balancing piston.   The balancing piston is ported to receive pressure from above the element on one side, and below the element on the other side. When the apparatus is run in the hole, wellbore pressure causes the compensating piston to be in the collapsed position. Upon inflation, the compensating piston strokes. A  positioning mechanism positions the compensating piston in the center to allow it to handle both temperature increases and decreases. Upon complete inflation of the element, the positioning mechanism releases the balancing piston to let it float and porting is opened from above and below the inflated element to the balancing piston. The balancing piston applies an opposite load on the compensating piston to counteract either a change in inject pressure from above or formation pressure from below.
Patent CA-2305353-A1 (CA)
Title: Heterocycles useful in the treatment of benign prostatic hyperplasia and intermediates thereof
Inventor: PROUTY CATHERINE
IPC: C07D213/38
Filed: 1998-10-09
Abstract: This invention relates to a series of heterocyclic substituted piperazines of Formula (I) pharmaceutical compositions containing them and intermediates used in their manufacture. The compounds of the invention selectively inhibit binding to the .alpha.-la adrenergic receptor, a receptor which has been implicated in benign prostatic hyperplasia. As such the compounds are potentially useful in the treatment of this disease.
Patent CA-2307539-A1 (CA)
Inventor: EVANS IAN JEFFREY
IPC: C07K19/00
Filed: 1998-11-09
Abstract: The expression of proteins is improved by post-translational transport to a cellular membrane, especially transport to the extracellular space, by the use of membrane-targeting sequences. One specific use of this method is in the expression of the DNA coding sequence for the sweet-protein brazzein:  transport to the extracellular space greatly increases the expression levels.
Patent CA-2312970-A1 (CA)
Title: An omnidirectional imaging apparatus
Inventor: NAYAR SHREE K
IPC: H04N5/74
Filed: 1998-12-04
Abstract: The invention disclosed herein is an omnidirectional imaging apparatus for sensing an image of a scene (130) from a single viewpoint. The omnidirectional imaging apparatus includes a truncated, substantially paraboloid-shaped reflector (135) positioned to orthographically reflect principal rays of electromagnetic radiation radiating from said scene, said paraboloid-shaped reflector having a focus coincident with said single viewpoint of said omnidirectional imaging apparatus, including said paraboloid-shaped reflector. The omnidirectional imaging apparatus also includes telecentric means (112, 113), optically coupled to said paraboloid-shaped reflector, for substantially filtering out principal rays of electromagnetic radiation which are not orthographically reflected by said paraboloid-shaped reflector. The omnidirectional imaging apparatus also includes one or more image sensors (111) positioned to receive said orthographically reflected principal rays of electromagnetic radiation from said paraboloid-shaped reflector, thereby sensing said image of said scene.
Patent CA-2314843-A1 (CA)
Inventor: LAUTZENHISER JOHN L
IPC: G06F3/042
Filed: 2000-08-02
Abstract: A light-sensitive voltage divider includes a light-sensitive device. Preferably, two series connected light-sensitive devices and two resistors are used to provide a light-sensitive voltage divider that not only is lumen balanced, but that also provides a null voltage in the absence of light. A  single-axis input device includes one of the light-sensitive voltage dividers, a lamp as a source of light, and means for selectively controlling transmission of light from the lamp to the light-sensitive voltage divider in response to a mechanical input. The means for controlling transmission of light includes light-control caps, a mirrored surface, and a light-restricting fluid. Joystick X-Y input devices and tilt-actuated X-Y input devices each include two of the light-sensitive voltage dividers. Selective control of proportionality, selective control of the rate of start-up, and selective control of the rate of shut-down are achieved by selectively controlling the rate of change of lumens of light produced from the lamps. Selective control of the lumens of light is achieved by a light-intensity control which is, optionally, a part of each one of the X-Y input devices.
Patent CA-2316603-A1 (CA)
Title: Device for supplying coolant of machine tool
Inventor: KOBAYASHI TAKASHI
IPC: B23Q1/00
Filed: 2000-08-24
Abstract: The present invention is characterized by a device for supplying coolant of a machine tool that supplies coolant to a mist generating device (10) at the tip of a spindle (9) through a coolant supply line (40). A coolant forcing means (11) is provided to the tip of the spindle near the mist generating device to force out the coolant inside a cylinder chamber (21) through a valve path (20). The coolant inside the supply line is repeatedly supplied into the cylinder chamber, whereas the coolant forced out from the cylinder chamber is supplied into the mist generating device at proper pressure. When the coolant pressure inside the supply line is below a fixed level, the coolant inside the supply line flows into the cylinder chamber. When the coolant pressure inside the supply line is over a fixed level, the coolant inside the cylinder chamber is forced out to the mist generating device.   According to the present invention, liquid dropping and various bad influences are prevented, and a fixed amount of coolant is intermittently supplied to the mist generating device. Moreover, a proper amount of coolant is timely supplied into the mist generating device by controlling actions of a coolant supply pump.
Patent CA-2316647-A1 (CA)
Title: Treatment or prevention of coccidiosis
Inventor: EVANS NIGEL ANTHONY
IPC: C07H17/00
Filed: 2000-08-25
Abstract: Coccidiosis in a bovine animal is prevented by administration of an effective amount of a macrolide antibiotic.
Patent CA-2317756-A1 (CA)
Title: Method, bag and disposable set for recirculation washing of blood cells
Inventor: JOHNSON CRAIG L
IPC: A61M1/34
Filed: 1999-01-07
Abstract: A bag (5) or reservoir for recirculation washing of blood cells having a top outlet port (2) and bottom inlet port (1). A  method of recirculation washing of blood cells using the bag (5) in conjunction with a spinning membrane filter (6). The method can be used in an instrument for magnetic cell selection or a stand-alone cell washing apparatus.
Patent CA-2318535-A1 (CA)
Inventor: SAFADI REEM
IPC: H04N7/16
Filed: 1999-01-15
Abstract: Cette invention a trait à un système permettant d'insérer des messages publicitaires (340) dans un train numérique audiovisuel par fourniture de commandes de repérage (320) en réaction à des tonalités de repérage (315) dans un signal analogique préexistant et/ou en réaction à des signaux de commande émanant d'un site à liaison montante (100) (/programmateur/réseau) ou d'une tête de bus (200) (/station affiliée). Des versions améliorées de microprogrammation sont fournies à un codeur numérique (120) afin de faciliter la production de trains numériques pouvant être raccordés et la production de commandes de repérage. Ces dispositions permettent l'insertion de messages publicitaires sur un site à liaison montante (/programmateur/réseau) (100) ainsi qu'au niveau d'une tête de bus de télévision par câble (/station affiliée) (200). Ce système assure une compatibilité fonctionnelle entre un train numérique (150) et les tonalités analogiques de repérage. Les commandes de repérage sont, de préférence, transportées dans la couche transport du train numérique de sorte qu'il n'est pas nécessaire de décodeur et de traiter plusieurs couches du train numérique. Il est ainsi possible d'ajouter, de manière compatible en amont, une nouvelle fonction d'insertion de messages publicitaire à des liaisons montantes existantes et à un équipement de tête de bus tout en réduisant au maximum les dépenses liées à une extension, ce qui permet, en outre, d'utiliser des techniques différentes de raccordement au gré de l'alternative coût-performance selon la qualité audiovisuelle souhaitée après raccordement.
Patent CA-2321477-A1 (CA)
Title: Board game
Inventor: GRUNDY VANESSA ELLEN
IPC: A63F3/00
Filed: 2000-09-29
Abstract: A board game comprising: a board having marked thereon a plurality of positions representing features in a real and/or imaginary region of space and with paths between said positions; a number of playing pieces for use by respective players of the game for movement along said paths in accordance with rules of the game; randomly operable indicating means for determining moves which may be made by said playing pieces; and randomly selectable indicating means associated with at least some of said positions on the board for determining further factors associated with movement of said playing pieces.
Patent CA-2324290-A1 (CA)
Title: Droplet deposition apparatus and method of manufacture
Inventor: PATON ANTHONY DAVID
IPC: H01L41/09
Filed: 1999-03-10
Abstract: A method of polarising a portion of a monolithic piezoelectric actuator element for use in droplet deposition apparatus where the element has first (46) and second portions (48) includes the steps of placing the first portion (46) of the element at en equipotential and generating a polarising electric field across the second portion (48) between said first portion (46) and a further conducting layer.
Patent CA-2327882-A1 (CA)
Inventor: MANSOUR HAMZA
IPC: A61K8/00
Filed: 1999-04-09
Abstract: La présente invention a pour objet un procédé de préparation de collagène à l'état natif, comportant une étape de prétraitement du collagène dans un mélangeur à double couteaux transversaux équipé d'un système de contrôle de la vitesse d'agitation et de cisaillement ainsi que d'un thermostat, et une étape subséquente de stérilisation du collagène en milieu liquide. La présente invention a également pour objet un collagène stérile, en particulier un collagène majoritairement de type I, à l'état natif ainsi que des compositions et applications notamment pharmaceutiques et/ou para-pharmaceutiques et/ou médico-chirurgicales et/ou ophthalmologiques et/ou cosmétiques de ce dernier.
Patent CA-2328098-A1 (CA)
Inventor: EUYBOGLU M VEDAT
IPC: H04L27/36
Filed: 1999-04-09
Abstract: A system, device and method for improving a defined property of transform- domain systems; the device includes: a signal mapper (23) which maps input data into blocks of symbols in a first domain and which generates offset bit s corresponding to each block of symbols; and a perturbation/transform device (27), responsive to the blocks of symbols in the first domain and the corresponding offset bits, which produces blocks of perturbed transform doma in symbols in order to improve the defined property of the transformed symbols.
Patent CA-2328196-A1 (CA)
Title: Apparatus for mounting an electronic device for use in directional drilling
Inventor: WENTWORTH STEVEN W
IPC: E21B47/01
Filed: 2000-12-13
Abstract: The present invention provides an improved apparatus for mounting an electronic device such as a sonde therein for use in directional drilling.  Such an apparatus includes an elongated housing having projections at opposite ends of the housing for connecting the housing to other components of the boring machine, an elongated internal chamber configured to receive an electronic device therein and having an elongated access opening which extends along an exterior surface of the housing, and a cover sized to close the access opening, the cover having a first hole extending therethrough. The housing includes a second hole which comes into alignment with the first hole when the cover is in a position to close the access opening, arid has a third hole at least partially intersecting the second hole, whereby when a pin having a head for holding down the cover is inserted in the first and second holes, a retainer such as a roll pin for engaging the pin may be inserted in the third hole in a manner effective to engage the pin so that the pin holds down the cover. According to preferred form of the invention, the pin preferably has an enlarged diameter head which seats against a step in the first hole to hold dow the cover, and a concave groove that comes into alignment with a round interior surface of the third hole when the pin is fully inserted so that the head engages the step. The retainer can then extend into the concave groove in the pin to prevent removal of the pin from the first and second holes. A side load sonde housing according to the invention has improved strength yet remains easy to open and close.
Patent CA-2330904-A1 (CA)
Inventor: SHERMAN BERNARD CHARLES
IPC: A61K31/675
Filed: 2001-01-11
Abstract: Stable tablets comprising fosinopril sodium are prepared by employing either stearic acid or zinc stearate as the lubricant.
Patent CA-2331195-A1 (CA)
Inventor: WATTS GERALD D
IPC: E21B33/06
Filed: 2001-01-17
Abstract: A variable bore ram packer designed for use in a standard ram-type blowout preventer used in oil and gas drilling operations is disclosed, The variable bore ram packer is molded of an elastomeric material having a central semi-circular opening sized to fit closely about a tubular member. The packer member includes a plurality of pillar inserts molded within the elastomeric material around the central semi-circular opening. The packer member and the plurality of pillar inserts are molded into a unitary structure allowing the plurality of pillar inserts to move and seat against different diameter tubular members to prevent extrusion of the elastomeric material between the pillar inserts and the tubular member. The pillar inserts include a top plate, a bottom plate and a spacer pin positioned therebetween. The top and bottom plates are a substantially triangular shape and in the preferred embodiment are free to rotate relative to the spacer pin independently of one another. The independent movement of the top and bottom plates allows the top and bottom plates to move and seat against different diameters.
Patent CA-2332148-A1 (CA)
Title: Method for detecting delayed data frames in a transport function
Inventor: REZAIIFAR RAMIN
IPC: H04L29/06
Filed: 1999-05-19
Abstract: A method for detecting delayed data frames in a transport function includes the steps of comparing a frame sequence counter with a predetermined threshold value (304), detecting a delayed frame if the sequence counter exceeds the threshold value, and processing the detected delayed frame accordingly (306). In an RLP data transport protocol, the delayed frame may be processed as a retransmitted frame.  The threshold value may be proportional to the maximum number of frames sent in a given bundle times the maximum delay, in units of frame intervals, between frames sent simultaneously over the air in the same frame interval.
Patent CA-2334746-A1 (CA)
Title: Process for producing optically active hemiesters
Inventor: SOUDA HIROSHI
IPC: C07D233/32
Filed: 2001-02-08
Abstract: There is disclosed a process for producing an optically active hemiester of formula (1):      wherein R1, R2 and R5 represent the same meanings as described below, which comprises reacting a cyclic acid anhydride of formula (2):      wherein R1 and R2 are different and independently represent a hydrogen atom, a halogen atom, an alkyl group optionally substituted with an alkoxy group or a halogen atom, and the like, with a hydroxy compound of formula (3):       R3OH (3) wherein R3 represents an alkyl group optionally substituted with an alkoxy group, a phenoxy group, a dialkylamino group or a halogen atom and the like, in the presence of an asymmetric catalyst.