baber/WOPTO huggingface dataset:
Patent CA-2091652-C (CA)
Title: Channel allocation in radio systems
Inventor: GREN MATS
IPC: H04W16/18
Filed: 1993-03-15
Granted: 1997-01-21
Abstract: A method of allocating radio channels, between the base stations of a multi-base station radio system, uses a mathematical model of the radio system which is derived from an analog of the radio system. The analog is a thermal bath containing a plurality  of interacting particles, each particle in a particular spin state. The number of particles at a given location in the thermal bath, corresponding to the traffic demand at an equivalent location in the radio system, each occupied spin state corresponding to the particular radio channel. The model is operated by allowing the spin states to relax, by means of a stochastic reduction in temperature of the thermal bath, from an initial infinite temperature, to a minimum energy, which equates to an acceptable level of interference between radio channels, operated in the different cells of the radio system. The distribution of spin states at the minimum energy determines the allocation of radio channels. Apparatus for implementing the method includes a central control unit which runs the mathematical model and issues commands to the individual base stations allocating channels.
Patent CA-2098915-C (CA)
Title: Echo contrast agent
Inventor: BELLER KLAUS-DIETER
IPC: A61K49/22
Filed: 1992-01-04
Granted: 2005-05-17
Abstract: An aqueous preparation for receiving and stabilising micro gas bubbles for use as echo contrast media containing polyoxyethylene/polyoxypropylene polymers and negatively charged phospholipids, which is suitable for demonstration of the left ventricle, is indicated.
Patent CA-2101165-C (CA)
Title: Conveyor device
Inventor: LANDUA WERNER
IPC: B65G7/08
Filed: 1991-12-21
Granted: 1997-02-25
Abstract: The invention concerns a conveyor device, preferably for conveying workpieces (1) between work stations, the device having an upright (2) and at least one holder (3) mounted on the upright (2) and holding the workpiece (1).  The holder (3) is fitted in turn with at least one holding element (4) which can be brought into engagement with the workpiece (1).  In order to increase the work rate, at the same time keeping the dimensions of the device as small as possible, in particular in the handling of foundry cores and moulds, the device is designed in such a way that the holder (3)  can be continuously rotated about a vertical axis (5) so that the holding element (4) executes a substantially arcuate motion.
Patent CA-2105935-C (CA)
Inventor: MUSSIVAND TOFY
IPC: A61M60/878
Filed: 1993-09-10
Granted: 2001-03-27
Abstract: The invention is directed to a unified system for an electrohydraulic ventricular assist device adapted for implantation in the thorax and for cannulation to the blood circulatory system comprising an internal electronic controller for generating an actuating signal actuating means for converting the actuating signal into a back and forth rhythmic displacement of a fluid, a blood pumping chamber having an inflow blood port and an outflow blood port for converting the back and forth displacement of the fluid into a rhythmic unidirectional displacement of blood through the inflow and outflow ports, coupling means for supplying the internal electronic controller with a supply voltage, detecting means for generating the actuating signal in response to the status of the blood pumping chamber, a volume displacement chamber (VDC) acting as a reservoir for the back and forth rhythmic displacement of a fluid, and a support with a surface curvature compatible with the internal human sagittal and transverse chest wall curvatures for supporting the internal electronic controller, the actuating means, the blood pumping chamber, the hermetic coupling means and the detecting means in a compact structure with the blood pumping chamber arranged with the inflow and outflow ports oriented away from the support and the structure with an overall size that when the unified system is placed within the human thorax with the the support surface adjacent the chest wall, the structure does not adversely compress adjacent organs.
Patent CA-2118705-C (CA)
Inventor: JUERGENS TRISTAN E
IPC: H01M50/541
Filed: 1992-09-09
Granted: 1999-09-07
Abstract: An end connector (24) for a battery (10) in which a set of interleafing battery plates (20, 40) is electrically and mechanically connected with a cast-on element to form a secure attachment with no discontinuities. The preferred embodiment utilizes a set of lead or lead alloy plates having an age that is immersed into a mold of molten material that forms the end connector.
Patent CA-2119850-C (CA)
Inventor: KANJO WAJIH
IPC: B61F5/16
Filed: 1994-03-24
Granted: 1996-10-08
Abstract: A wear and lubricating liner having a cup-shaped wear liner assembly which includes a first bottom plate portion.  An aperture is formed centrally through such first bottom plate and a first upstanding wall portion is connected at a bottom thereof to an outer perimeter of such first bottom plate.  A lubricating liner assembly having  at  least  one  substantially  solid  lubricating material with a bottom surface thereof disposed adjacent and in contact with an upper surface of such bottom plate and a vertically disposed ring-like solid lubricating material.  An outer surface of such ring-like lubricating material is disposed adjacent and in contact with an inner surface of such upstanding wall of the wear liner.  A protective cover member includes a second bottom plate portion having a bottom surface disposed adjacent and in contact with an upper surface of such at least one solid lubricating material. Another aperture is formed centrally through such second bottom plate.  A second upstanding wall portion, located on the protective cover, is connected at a bottom thereof to an outer perimeter of such second bottom plate and an annular lip-like portion is connected adjacent an inner edge thereof to an upper edge of such second upstanding wall.  Such lip-like portion extends outwardly from such upper edge of the second upstanding wall and downwardly toward a top surface of such bolster bowl.  A space is disposed between an inner surface of such ring-like lubricating material and an outer surface of such second upstanding wall.
Patent CA-2121896-C (CA)
Inventor: DAVIS ANDREW GORDON
IPC: H04M11/06
Filed: 1992-11-13
Granted: 1998-06-30
Abstract: A digital coder receives (input 100) either speech or voice-band data. When receiving speech this is coded by a digital speech coder (102) formatted into frames with parity bits (106). If modulated data are present this is recognized by a detector (107) which routes the signals instead via a demodulator (108). Parity bits are generated from the same frame portions but parity is inverted (110) so that a parity checking unit at a receiver (not shown) can readily recognize the change. Preferably means (111) are provided to insert into data frames codewords identifying the start and end and indicating the type of modulation in use. Additional detectors (107) and demodulators can be added for different types of modulation.
Patent CA-2136154-C (CA)
Title: User control of multiple memory heaps
Inventor: BENAYON JAY WILLIAM
IPC: G06F9/50
Filed: 1994-11-18
Granted: 1999-08-24
Abstract: The present invention provides the user with the ability to control and administer the supply of memory managed in multiple heaps by a library heap management facility. The control data used by the heap management facility is located in the user-supplied memory. Heaps are created dynamically through calls from the application to the runtime library. Allocation within a heap is performed through calls to the runtime library that canvass the available heap memory for each allocation request. If no suitable block of heap memory is located, additional user supplied memory is requested for the application through a callback function. A second callback function notifies the user when a supplied unit of memory is no longer required by the heap and may he disposed of. The callback functions are specified separately for each heap. The invention also provides the user with means for setting the default heap in the runtime library for use by allocation requests from a vendor library that do not specify a heap. This can be done on a per thread basis in multithreaded applications so that different executing threads can use different default heaps in a non-interfering manner.
Patent CA-2136217-C (CA)
Inventor: SMITH DANIEL E
IPC: H01F7/14
Filed: 1993-07-16
Granted: 1998-10-13
Abstract: Présentation d'une structure améliorée de clapets pivotants pour fluides dans laquelle un bras pivotant allongé (22) est monté de manière à pivoter à travers une membrane (24) souple et élastique résistant à la corrosion qui sert à soutenir et à équilibrer le bras pivotant (22) et qui joue le rôle de support de pivot sans frottement. Une extrémité du bras pivotant permet une restriction modulée d'un orifice à l'intérieur de la chambre de vanne (14) pour régler l'écoulement du fluide; l'autre extrémité opposée du bras pivotant (22) est reliée à une force motrice (38) pour actionner le bras pivotant (22).
Patent CA-2136843-C (CA)
Inventor: PHADKE DEEPAK S
IPC: A61K9/14
Filed: 1993-07-09
Granted: 1999-01-26
Abstract: Divulgation de compositions laxatives mucilagineuses, en poudre, sans sucre et dispersibles dans l'eau. Ces compositions forment dans l'eau des dispersions lisses et appétentes qui contiennent une quantité thérapeutiquement efficace d'éther de cellulose.
Patent CA-2140835-C (CA)
Inventor: TARDY MICHEL
IPC: A61L24/00
Filed: 1995-01-23
Granted: 2001-11-20
Abstract: The invention relates to a biocompatible, bio-resorbable and non-toxic adhesive composition for surgical use, for the bonding, in particular, of biological tissues to one another or to an implanted biomaterial, characterized in that it comprises a reactive acidic solution of non-crosslinked and potentially crosslinkable collagen or gelatin modified by oxidative cleavage, at a concentration which is prefer-ably between approximately 5 and 30% by weight.      It also relates to reactive acidic solutions and powders based on non-crosslinked collagen or gelatin modified by oxidative cleavage which are used as inter-mediate products in the preparation of the abovementioned composition, and to the process for their preparation.      It also relates to adhesive kits which comprise, on the one hand, the abovementioned reactive acidic solution and, on the other hand, a neutralizing solution and which are intended for extemporaneous mixing.      Finally it relates to a method of application of the adhesive composition according to the invention.      The invention is particularly useful in the areas of adhesion, haemostasis, leaktightness with respect to liquids or gases, cicatrization, filling, avoiding adhesion in surgery, embolization, as a local system for release of medicamentary active principles, etc.
Patent CA-2143189-C (CA)
Title: Flexible barrier member useful in aerosol dispensers
Inventor: ABPLANALP ROBERT HENRY
IPC: G02F1/13357
Filed: 1994-06-29
Granted: 2006-10-03
Abstract: A barrier for use in a pressurized container comprising a unitary flexible and expandable member having an outer wall segment terminating in a sealing flange and an inner wall segment joined to the outer wall segment through a fold and a central piston region emerging from the terminus of the inner wall segment distal to the fold; the barrier being sufficiently thick and rigid to be free-standing before incorporation into a pressurized container. The outer and inner wall segments are oppositely-directed frustoconical shapes forming a small acute angle with each other. The outer and inner wall segments expand outwardly to progressively conform to the container inner wall surface as product is evacuated from the container. The outer wall segment may be thicker and more rigid than the inner wall segment. The barrier is nestable with like barriers.
Patent CA-2151995-C (CA)
Inventor: CHIU BERNARD
IPC: F24F6/02
Filed: 1995-06-16
Granted: 2001-12-04
Abstract: A humidifier having a reservoir, an exhaust opening, and a humidification unit including a motor driven fan with a suction tube attached thereto, a diffusion screen, and an intake opening.  Water is drawn from the reservoir through the suction tube and dispersed towards the diffusion screen to cause mist which is combined with air drawn through the intake opening by the fan and expelled through the exhaust opening.  An integral latch mechanism removably and replaceably attaches the suction tube to the fan to facilitate cleaning of the tube.
Patent CA-2153916-C (CA)
Title: Gas phase fluidized bed polyolefin polymerization process using sound waves
Inventor: PAINTER ROGER BRADY
IPC: C08F210/18
Filed: 1995-07-14
Granted: 1997-12-23
Abstract: An improved method for polymerizing one or more polyolefins in the presence of a transition metal catalyst in at least one gas phase fluidized bed reactor, the improvement comprises generating at least one low frequency, high pressure sound wave inside a reactor system, which wave has sufficient frequency and pressure to dislodge and/or prevent particle build-up on interior surfaces of the reactor system.
Patent CA-2157144-C (CA)
Inventor: THANNER THOMAS
IPC: H04L45/02
Filed: 1995-08-29
Granted: 2006-07-25
Abstract: The communication network has a plurality of mutually connected network nodes (NR1,...,NK5), in which in each case network data relating to the network topology of the entire communication network are maintained and, depending on said network data, routing tables for connection paths to all remaining network nodes are created. If an event that influences the network topology of the communication network occurs, on the one hand the network data maintained therein are updated by the network node detecting said event. On the other hand a broadcast message corresponding to the event is transmitted to the other network nodes, following the reception of which the respective network nodes update the network data maintained therein. It is provided here that, for the transmission of the broadcast message within the communication network, a connection path network is defined from the plurality of possible connection paths between the individual network nodes, via which network the broadcast message reaches the respective network node via only a defined number of independent connection paths.
Patent CA-2158478-C (CA)
Title: Stabilized magnesium hydroxide slurry
Inventor: RICHMOND ALVIN
IPC: C01F5/14
Filed: 1994-04-12
Granted: 2000-11-28
Abstract: A method for producing a stabilized magnesium hydroxide slurry comprising physically deflocculating the magnesium hydroxide solids in a starting slurry to produce a stabilized magnesium hydroxide slurry. Depending on the chloride level of the starting slurry, a cationic polymer may be added to the slurry. Optionally a thickening agent may be added to the deflocculated slurry. Also disclosed is a stabilized magnesium hydroxide slurry produced by the method which may be transported and stored without substantial agglomeration of the magnesium hydroxide solids.
Patent CA-2159680-C (CA)
Inventor: BESESTY PASCAL
IPC: G01S17/10
Filed: 1995-10-02
Granted: 2002-04-02
Abstract: This laser telemetry device operating on the principle of the measurement of the transit time of a light pulse, is characterized in that it com-prises: - a passive switching microlaser (2), - means (6, 10) for receiving a light pulse (18, 19) reflected by an object (4) and for the detection of the reception time of said pulse, - means (8, 10) for the detection of the emission time of a pulse from the microlaser (2), - means (12) for measuring the time interval or slot separating the microlaser pulse emission time and the reflected beam reception time.
Patent CA-2160413-C (CA)
Inventor: SKANTAR ELMER THOMAS
IPC: B61H13/02
Filed: 1995-10-12
Granted: 1998-08-11
Abstract: An automated terminal test system and method for performing a terminal test of brake equipment on a train is disclosed.   The system includes a test control box connected to a head of train locomotive and accessible from outside of such locomotive.  Linked to such brake equipment, the test control box has a control for activating the test control box, applying and releasing such brake, and charging and venting such brake pipe.  The system also includes an end of train transceiver device connected to such brake pipe on a last railcar of such train.  The end of train transceiver device monitors pressure within such brake pipe on such last railcar, senses movement of such last railcar, and communicates signals representative of such pressure monitored and such movement sensed.          The system further includes a head of train transceiver device linked to such brake equipment and connected to such brake pipe on such locomotive.  The head of train transceiver device monitors pressure within such brake pipe on such locomotive and transmits to such brake  equipment  the resulting head of  train brake  pipe pressure.  The head of train transceiver device also relays to such brake equipment such last railcar brake pipe pressure data and such last railcar motion data both received from the end of train transceiver device.   Through  appropriate manipulation  of  the control,  a  railyard worker can apply and release  such brake automatically and charge and vent such brake pipe automatically from outside such cab of such locomotive during such terminal test.
Patent CA-2160834-C (CA)
Inventor: SANKEY BRUCE M
IPC: C10G9/00
Filed: 1995-10-18
Granted: 2000-07-18
Abstract: A process for the thermal conversion of the organic component of naturally occurring carbonaceous material such as tar sands or oil shale. The conversion is achieved by subjecting organic component, in the presence of about 1 to 20 wt.% native solids, to thermal conversion at temperatures from about 425 to 565°C. Compared to conventional visbreaking, much higher conversion of heavy components can be achieved, primarily because of the presence of the native solids on which coke is deposited instead of fouling the process equipment. The higher conversion is also associated with enhanced removal of sulfur and metals.
Patent CA-2161741-C (CA)
Inventor: NOGGLE GARY C
IPC: G10K11/16
Filed: 1995-10-30
Granted: 1999-05-11
Abstract: A noise-reduction system for a vehicle wheel assembly which is comprised of a usual rim and a tubeless pneumatic tire having a pair of sidewalls and bead areas mounted  thereon.    A plurality  of  flexible,  non-self-supporting pieces of cloth or other sheet material are attached to the rim or are attached to the bead areas and extend  therebetween,   preferably  at   equally spaced intervals, and form baffles within the annular air chamber of the wheel assembly to reduce noise by changing the characteristics of the sound waves created within the wheel assembly.   When the wheel assembly is stationary,  the baffles collapse on the rim, and when the wheel assembly is rotating, the baffles move outwardly by centrifugal force and substantially conform to the transverse cross section of the air chamber to obstruct the movement of acoustic waves traveling with the chamber to reduce tire noise.
Patent CA-2163126-C (CA)
Inventor: KAPEC JEFFREY
IPC: B05C17/005
Filed: 1994-04-06
Granted: 2000-09-19
Abstract: Methods and apparatus (100) are set forth for preparing and delivering bone cement from a powdered polymer component and a liquid monomer component by simultaneously injecting the powdered and liquid components, stored in separate component chambers (102, 103) into an evacuated mixing chamber (123) under the effect of the vacuum; by uniformly mixing the components in the mixing chamber (123) (to thoroughly wet the powder); and by delivering the cement formed by the polymerization process, as needed in an operative setting, utilizing a single ready to use device. The uniform mix is achieved by simultaneously subjecting the contents of the component chambers (102, 103) to the effects of the mixing chamber's (123) vacuum via separate one way nozzles (114, 115) interconnecting the component chambers (102, 103) to the mixing chamber (123), which cause the powder to be broadcast and liquid to be sprayed into the mixing chamber (123). The nozzles (114, 115) are designed and oriented in a predetermined manner (depending on the typed and quantity of the constituent bone cement component being mixed), to cause the components to interact at a preselected distance within the mixing chamber (123), to assure uniform powder saturation and a thorough mix which yields a homogeneous reaction product.
Patent CA-2164073-C (CA)
Inventor: KUBOTA OICHI
IPC: H04J14/02
Filed: 1995-11-29
Granted: 1999-10-12
Abstract: In a wavelength-multiplexing communication system, an optical transmitter detects at least either one wavelength of a transmission wavelength of a self optical transmitter and a wavelength adjacent to the transmission wavelength of the self optical transmitter on a wavelength axis either on a longer wavelength side or on a shorter wavelength side than the transmission wavelength of the self optical transmitter by a wavelength-variable band-pass filter capable of changing a passing wavelength thereof, and controls the transmission wavelength of the self optical transmitter so that a wavelength spacing between the transmission wavelength of the self optical transmitter and the wavelength adjacent thereto may become a predetermined wavelength spacing.
Patent CA-2164351-C (CA)
Inventor: SIROKY JOHN ALLEN
IPC: G06F13/40
Filed: 1995-12-04
Granted: 2000-03-07
Abstract: A laminated cylindrical backplane is constructed using disks with a conductive material mounted on a top surface, and a conductive material mounted on a secondsurface. Each disk and its conductive surfaces are separated from adjacent disks and their conductive surfaces by a dielectric material. The laminated structure forms a cylindrical backplane where circuit cards are radially mounted to the backplane by inserting the cards into slots in the perimeter of the cylindrical structure. The slots contain contacts where similarly positioned contacts of a particular disk are electrically connected to form a bus structure. As a result, similarly positioned conductive surfaces on circuit cards are electrically connected when the cards are inserted into the slots.
Patent CA-2164848-C (CA)
Title: Interleukin-2 stimulated t lymphocyte cell death for the treatment of autoimmune diseases, allergic disorders, and graft rejection
Inventor: LENARDO MICHAEL J
IPC: A61K39/00
Filed: 1993-06-09
Granted: 2010-08-03
Abstract: A method for the treatment or prevention of autoimmune diseases, allergic or atopic disorders, and graft rejection is provided, comprising inducing the death by apoptosis of a subpopulation of T lymphocytes that is capable of causing such diseases, while leaving substantially unaffected the majority of other T lymphocytes Cell death is achieved by cycle(s) comprising challenging via immunization these T cells with antigenic substance at short time intervals or by immunization followed by administering interleukin-2 (IL-2) when these T cells are expressing high levels of IL-2 receptor so as cause these T cells to undergo apoptosis upon re-immunization with the antigenic peptide or protein. These methods are applicable to the treatment of autoimmune diseases such as, for example, multiple sclerosis, uveitis, arthritis, Type I insulin-dependent diabetes, Hashimoto's thyroiditis, Grave's thyroiditis, autoimmune myocardis, allergic disorders such as hay fever, extrinsic asthma, or insect bite and sting allergies. food and drug allergies, as well as for the treatment or prevention of graft rejection.