baber/WOPTO huggingface dataset:
Patent CA-2108683-C (CA)
Inventor: OLOMAN COLIN
IPC: F16N11/10
Filed: 1992-04-24
Granted: 2004-01-27
Abstract: A gas generator particularly useful as a component in a fluid dispensing apparatus. The generator produces gas at a relatively constant rate and, in a preferred embodiment, at a rate which has a reduced dependence on ambient temperature. The gas generator comprises a liquid and a solid composition. The solid composition may be a first reagent dispersed in an inert solid or may consist essentially of the first reagent. In either case the solid composition, following contact with the liquid, reacts to generate a gas for at least about 20 hours during which at any elapsed time, t, of the reaction V=Y't m where V = volume of gas produced as measured at constant temperature and pressure; Y = a rate constant related to the rate of reaction; m = any value between about 0.5 to about 1.3 when the temperature is constant.  Preferably, the reaction has an m value within the foregoing range when the temperature is constant at some value within the range of about -30 °C to about 40 °C. The reaction is also preferably selected such that the apparent activation energy is no greater than about 40 kJ/mole, and preferably no greater than about 30 kJ/mole.
Patent CA-2111298-C (CA)
Inventor: ELLIS DAVID A
IPC: G06F3/16
Filed: 1993-12-13
Granted: 1999-07-27
Abstract: The combination of a portable computer and hand set for dictation and transcription.  The hand set has a digital signal processor that compresses voice samples after voice signals have been converted from analog to digital.  The digital signal processor is connected to a serial communication link through which communication can be held directly with a portable computer.  Both voice samples and control data are carried by the same communication link.  Controls are provided in the hand set for carrying out the normal dictation operations.
Patent CA-2111925-C (CA)
Title: Thermoplastic polyurethanes modified by siloxane block copolymers
Inventor: PUDLEINER HEINZ
IPC: C08G18/61
Filed: 1993-12-20
Granted: 2004-09-14
Abstract: The invention relates to thermoplastic polyurethanes modified with segmented siloxane block copolymers which are based on relatively high molecular weight dihydroxy compounds, diisocyanates, and difunctional chain extenders. The application also relates to their use in the medical field, and particularly as a catheter material.
Patent CA-2119087-C (CA)
Inventor: LUM SANFORD S
IPC: H04N5/202
Filed: 1994-03-15
Granted: 1999-06-01
Abstract: The present invention relates to a method of processing video signals comprised of gamma correcting pixel data of a first signal, gamma correcting pixel data of a second signal, adding the gamma corrected first and second signals to form a sum signal, dividing the sum signal by a factor to form a processed signal, and reverse gamma correcting the processed signal, whereby merged pixel data is produced for generation of a display.
Patent CA-2126103-C (CA)
Title: Transfection of lung via aerosolized transgene delivery
Inventor: DEBS ROBERT J
IPC: C12P21/02
Filed: 1992-12-17
Granted: 2002-12-03
Abstract: Methods and compositions for producing a mammal capable of expressing an exogenously supplied gene in cells of the airway are disclosed. Lipid carrier-nucleic acid complexes are prepared then delivered via aerosol to the lung airway. The inven-tion provides a direct method for transforming pulmonary cells as a means for treating disorders of the lung as for providing a means for delivering substances systematically following expression in the lung.
Patent CA-2132470-C (CA)
Title: Mixed resolution printing for color and monochrome printers
Inventor: HARRIS DONALD G
IPC: B41J3/54
Filed: 1994-09-20
Granted: 2004-03-09
Abstract: A printer with mixed base resolution capabilities, having a higher resolution monochrome component such as black and lower resolution components such as cyan, magenta and yellow. The different resolution components are integrated into the same printing mechanism for composite printing of higher resolution black and lower resolution color at the same time. For increased throughput, a higher resolution black printhead has a wider swath.
Patent CA-2132664-C (CA)
Title: Process for chemically treating reservoir pyrobitumen to improve permeability
Inventor: SHAW JERRY CHIN
IPC: C09K8/60
Filed: 1994-09-22
Granted: 1998-06-30
Abstract: The process involves a well stimulation treatment of a hydrocarbon reservoir containing solid pyrobitumen. A strong oxidant, preferably sodium hypochlorite, is injected into the reservoir as an aqueous solution containing 5 wt. % or higher concentration of the oxidant. The oxidant is retained in contact with the formation for a predetermined retention period and the well is then backflowed or pumped to remove oxidation products. The permeability of the reservoir is improved, apparently by conversion of the solid pyrobitumen to removable gaseousand liquid products.
Patent CA-2140439-C (CA)
Title: Trunked communication system with automatic repeater talk-around
Inventor: DIAZ RAFAEL
IPC: H04W16/14
Filed: 1994-06-03
Granted: 2001-05-01
Abstract: A method to implement multiple talk-around communication links using the communication resources of one repeater. A system resource controller (13) determines whether talk-around is possible for any two communication units (11) intending to engage in a point-to-point communication link. Assignment of a talk-around repeater (15) depends on the geographic locations of the two communication units, and a predetermined range criterion between them. In addition, the talk-around communication must not interfere with any existing talk-around communication already in the system. When talk-around communication is possible, an enabling communication grant is issued to the units, and the talk-around repeater's communication resources are assigned to support the link. Otherwise, a repeater (16) for normal trunking is assigned.
Patent CA-2140568-C (CA)
Title: Reduced bit number motion vector detection
Inventor: OGURA EIJI
IPC: H04N19/50
Filed: 1995-01-19
Granted: 2004-10-26
Abstract: In image compression using motion compensated predictive coding, the number of bits of pixel data is reduced before the pixel data are supplied to a motion vector detecting apparatus. Motion vectors are detected using a pipelined operation in which pixel by pixel differences between a reference block and a search block are obtained and summed. At each stage of the pipeline, the sum of differences is limited to a predetermined maximum number of bits.
Patent CA-2144901-C (CA)
Title: Spoolable coiled tubing mandrel and gas lift valves
Inventor: PRINGLE RONALD E
IPC: F04F1/20
Filed: 1995-03-17
Granted: 1998-11-03
Abstract: A spoolable, flexible sidepocket mandrel positioned in a coiled tubing having an orienting sleeve, a sidepocket, and a deflector guide in which the pocket includes a plurality of separate pocket parts and the guide includes a plurality of separate guide parts, all secured to the inside of a housing for allowing the mandrel to be longitudinally flexible and spoolable. A retrievable longitudinally flexible, spoolable gas lift valve is adapted to be inserted into and retrieved from the sidepocket. The gas lift valve may be of various types including an adjustable flow gas lift valve.
Patent CA-2149376-C (CA)
Title: Biaxially highly oriented polypropylene film, process for its production and use thereof
Inventor: PEIFFER HERBERT
IPC: C08J5/18
Filed: 1995-05-15
Granted: 2006-10-03
Abstract: The disclosed biaxially oriented propylene polymer film contains, in its single ply (or, if it is a multi-ply film, in its base ply) a low molecular weight resin, and the film has improved stretchability and other desirable physical properties, even though the propylene polymer of the sole or base ply is preferably a homopolymer. The n-heptane-insoluble fraction of the film has a chain isotaxy index, measured by means of 13C-NMR spectroscopy, of at least 85 to 94%. The sole or base ply contains less than 10% by weight of resin. The film is stretched in such a way that the product of tensile strength in the longitudinal and transverse direction is greater than 50,000 (N/mm2)2. The film is made by, among other steps, carrying out the orientation in the longitudinal and transverse directions such that the product of the longitudinal stretching ratio and the transverse stretching ratio is >= 60.
Patent CA-2151591-C (CA)
Title: Dispenser
Inventor: VEVERIS MICHAEL
IPC: B01F1/00
Filed: 1993-12-14
Granted: 1998-02-24
Abstract: A dispenser for powdered, granular, pellet, briquette or tablet-like material is provided. The dispenser comprises a dispenser head through which the material dissolved in water can be dispersed. A spray device is provided at the head to spray water onto the material provided in the dispenser head. A suspension device is provided to suspend a bag containing the material above the dispenser head. The bag in its suspended orientation has a fastener along its bottom end which closes the bottom end of the bag. The fastener is not, however, releasable until after the bag is mounted in the dispenser. Then the fastener is releasable to allow the contents thereof to fall by gravity onto thedispensing head. The dispenser provides a system, which normally avoids contact of the toxic contents of the bag with the user. At the same time, the only waste is in the form of a bag which may be made of recyclable plastic hence minimizing waste associated with the system.
Patent CA-2156021-C (CA)
Title: Equal lift self-loading controlled deflection roll and method for operating same
Inventor: BROWN DALE A
IPC: D21F3/00
Filed: 1995-08-14
Granted: 1998-12-15
Abstract: A self-loading controlled deflection roll has movable shoes disposed inside the roll shell, at the opposite ends and at the center of a central shaft, for displacing the external surface of the roll shell toward and away from a mating roll forming a nip with the controlled deflection roll. In order to ensure that both ends of the controlled deflection roll shell move evenly in a radial direction into nipping engagement with the mating roll, and to also ensure that the ends retract evenly away from nip engagement, a control system and method are provided for automatically adjusting the flow of hydraulic fluid, such as oil, which is used to displace the shoes at the opposite end of the central shaft. The control system and method make use of a mechanical linkage which is operated by movement responsive displacement of the shoes, the linkage positioning relatively movable parts of a control valve so as to increase or decrease the flow of hydraulic fluid to the respective end shoes, thereby ensuring that the end shoes move uniformly relative to each other.
Patent CA-2158182-C (CA)
Inventor: SHIOMI HIROMU
IPC: H01L29/80
Filed: 1995-09-13
Granted: 2006-03-14
Abstract: A field effect transistor comprises a buffer layer made of a highly resistant diamond on a substrate; an active layer made of conductive diamond on the buffer layer with a dopant concentration such that conduction of carriers is metallically dominated a thickeness such that dopant distribution is two-dimensionally aligned; a cap layer made of a highly resistant diamond on the active layer; a gate electrode layer formed on the cap layer so as to make Schottky contact therewith; and a source electrode layer and a drain electrode layer which make ohmic contact with a laminate structure of said buffer, active and cap layers. The active layer is formed as a .delta.-dope layer or pulse-dope layer doped with a conductive dopant, while being held between both highly resistant buffer and cap layers. When the dopant concentration in the conductive diamond layer is increased, a high gain, can be obtained.
Patent CA-2158976-C (CA)
Title: Telescoping serial elastic band ligator
Inventor: WATSON THOMAS E JR
IPC: A61B17/12
Filed: 1995-02-07
Granted: 2005-05-24
Abstract: A ligating band dispenser for dispensing a plurality of elastic ligating bands onto at least one internal tissue site within a patient's body, comprising an inner cylinder having proximal and distal portions, the inner cylinder being adapted to support at least one ligating band in a stretched condition about the distal portion thereof; an intermediate cylinder having proximal and distal portions and a distal end, the intermediate cylinder being positioned about at least the proximal portion of the inner cylinder and adapted to support at least another ligating band in a stretched condition about the distal portion thereof, the inner and intermediate cylinders comprising axially sliding cylinders; and an outer cylinder positioned about at least the proximal portion of the intermediate cylinder, the outer cylinder having a distal end, the sliding cylinders being axially slidable mounted with respect to the outer cylinder. A trip wire is connected to the inner cylinder and extends proximally therefrom, the trip wire being adapted to cause an axially sliding motion of the sliding cylinders during an application of force to the trip wire. Restraining means associated with each sliding cylinder are provided for restraining the sliding motion thereof during the application of force to the trip wire. Releasing means are also provided for releasing the restraining means associated with one of the sliding cylinders upon the application of the pulling force, whereby the released sliding cylinder slides and the distal end of one of the intermediate and outer cylinders pushes the ligating band therefrom during the application of the pulling force.
Patent CA-2159719-C (CA)
Inventor: YAMAO YASUSHI
IPC: H04W88/18
Filed: 1995-02-02
Granted: 2005-08-02
Abstract: L'invention concerne un système qui émet un signal d'appel vers des zones radioélectriques pour appeler sélectivement un récepteur radio. Le nombre de fois où le signal d'appel est émis depuis une station de base est variable, d'où la possibilité d'aménager une station de base relativement peu coûteuse même lorsque la zone de service n'a pas beaucoup d'abonnés.
Patent CA-2161449-C (CA)
Title: Method for manufacturing eptfe products
Inventor: ZDRAHALA RICHARD J
IPC: B29C48/10
Filed: 1995-03-09
Granted: 2005-04-05
Abstract: An improved method is provided for extruding ePTFE tube (12) for use in medical applications. A tube (12) of PTFE is extruded, preferably in an extrusion process, using counter-rotated die components (22, 26). The die component (16) is maintained at a constant temperature during processing.   The resulting green tube (12) has enhanced fibrous state formation in a direction perpendicular to the direction of extrusion. The PTFE green tube (12) is then subjected to secondary operations such as stretching and expansion to yield medical product. The ePTFE tube (12) structure is defined by nodes interconnected by elongate fibrils.   Both the nodes and fibrils are substantially randomly tilted with respect to the longitudinal axis of the tube (12). This particular structure yields a tube (12) which exhibits a high degree of radial tear strength useful in medical applications.
Patent CA-2161704-C (CA)
Inventor: KLEMT VOLKER
IPC: G01N21/76
Filed: 1994-04-27
Granted: 2002-01-22
Abstract: Method for measuring electrochemiluminescent phenomena using certain detergents and, if necessary, alkali chlorides and reagents suitable for this purpose.
Patent CA-2164218-C (CA)
Inventor: GRAY BRUCE E
IPC: H04M19/00
Filed: 1994-06-03
Granted: 2002-05-07
Abstract: The present invention is a dial in-bound MIU (100) capable of deriving its operating current from a telephone line (120). The MIU is coupled to the telephone line using conventional practices. The MIU has the capacity to initiate data transmission at a predetermined time or upon demand by the customer or the utility company. The MIU includes a microprocessor (u22) which serves as the command processing center for the MIU. The microprocessor also manages all time-dependent functions for the MIU. When the microprocessor determined that data transmission is required, the MIU dials up a central computer using a modem (150) built into the MIU circuitry.
Patent CA-2164751-C (CA)
Title: Video transmission rate matching for multimedia communication systems
Inventor: YAN LI
IPC: H04N21/61
Filed: 1995-12-08
Granted: 2000-02-15
Abstract: Improved bit rate reduction techniques are disclosed. When incorporated into an existing video processing system having a DCT coefficients processor, the motion vector processor disclosed herein provides enhanced computational and memory storage efficiencies over prior art designs. The motion vector processor includes a microprocessor and associated motion vector memory. The motion vector memory is adapted to store a plurality of motion vectors corresponding to at least one image frame containing a plurality of macro blocks. Each motion vectoris represented by an X value and a Y value, the X value and the Y value signifying image changes within a given macro block from a given frame to the immediately preceding frame.
Patent CA-2165830-C (CA)
Inventor: YORK PETER
IPC: A61K9/16
Filed: 1994-06-30
Granted: 2005-04-26
Abstract: L'invention se rapporte à des produits particulaires que l'on peut préparer selon des procédés et avec un appareillage utilisant des fluides supercritiques. L'inventon se rapporte plus spécialement à des produits pharmaceutiques, en particulier à des formes cristallines de xinafoate de salmétérol que l'on peut aisément manipuler et facilement fluidifier, dont la forme et la dimension des particules sont contrôlées.
Patent CA-2166300-C (CA)
Title: Aqueous lubricant and surface conditioner for formed metal surfaces
Inventor: BERSHAS JAMES P
IPC: C10M173/02
Filed: 1994-01-04
Granted: 2003-10-21
Abstract: A lubricant and surface conditioner for formed metal surfaces, particularly aluminum and tin beverage containers, reduces the coefficient of static friction of said metal surfaces and enables drying sai d metal surfaces at a lower temperature. The conditioner includes (i) a water-soluble organic material selected from amine oxides and quaterna ry ammonium salts, ethoxylated castor oil derivatives, a nd imidazoline moiety-containing phosphonates and preferably also includes (ii) at least one of fluozirconate, fluohafnate, or fluotita nate ion, and (iii) phosphate and/or nitrate ions. Good resistance to damaging the fri ction reducing effect by overheating and to staining of the domes of treated containers during pasteurization can be achieved.
Patent CA-2182933-C (CA)
Inventor: GUELL RONALD R
IPC: B60S1/38
Filed: 1996-08-08
Granted: 2001-05-15
Abstract: This invention relates to a new and useful improvement in a wiper blade and blade carrier which is electrically heated for use on the windshields of vehicles, such as automobiles, trucks, trains, boats, airplanes and the like so as to prevent the accumulation of ice, sleet or snow on the wiper blade and wiper blade carrier. More particularly, this invention has references to an improved heating arrangement designed to be used in windshield wiper assemblies with minimum modification or redesign of blade supporting, oscillating means, etc. A heating element of resistance wire is disposed the entire length of the passageway of the wiper blade and beyond into the blade carrier. The heating arrangement is connected to the vehicle battery to heat the heating element allowing the entire outer circumference of the entire wiper blade body and blade carrier to melt frozen precipitation on the wiper and blade carrier.
Patent CA-2183053-C (CA)
Title: Carpet extractor fluid supply system
Inventor: CROUSER DARWIN S
IPC: A47L11/30
Filed: 1996-08-09
Granted: 2008-02-26
Abstract: A gravity feed liquid cleaning solution supply system particularly suitable for use on an upright hot water carpet extractor having a free floating brush assembly is disclosed. The unique system generally comprises a stationary fluid supply manifold positioned above a free floating brush assembly having multiple laterally disposed rotary brushes rotatable about vertical axle shafts suspended from a laterally disposed brush support beam. The support beam includes open top troughs, one above each individual brush, into which liquid cleaning solution cascades from the overhead manifold. From each fluid trough, the cleaning solution is conveyed to the center cup of an associated rotary brush through a conduit integrally molded into the brush support beam. By this unique structure liquid cleaning solution is supplied to the free floating brush assembly without restricting the floating movement of the scrubbing brushes over the surface being cleaned.
Patent CA-2190268-C (CA)
Inventor: MUELLER-DERLICH JUTTA
IPC: A61K35/14
Filed: 1995-05-15
Granted: 2000-01-25
Abstract: The invention provides a method for producing a sterile and pyrogen-free column coupled to protein for use in removing a predetermined substance from the blood of a human subject. The method abrogates sterilization of the finished protein-containing product by providing sterile and pyrogen-free raw materials at each production step. The method provides a pathogen-free, purified solution of protein which binds to a predetermined substance in human blood such as LDL or immunoglobulin.  Typically, the protein is anti-human LDL immunoglobulin or anti-human Ig immunoglobulin.  The method also provides a sterile and pyrogen-free column matrix material such as an agarose which is chemically activated, either using CNBr and triethylamine or using 1,1'-carbonyldiimidazole. The sterile and pyrogen-free, activated matrix material and the pathogen-free, purified protein solution are combined under aseptic conditions to effect the coupling of the protein to the matrix material, and the protein-coupled matrix material is filled under aseptic conditions into a sterile and pyrogen-free housing to produce a sterile and pyrogen-free column.
Patent CA-2195411-C (CA)
Inventor: POWELL RICHARD LLEWELLYN
IPC: C09K5/04
Filed: 1995-07-24
Granted: 2006-06-13
Abstract: A composition for use in a heat transfer device such as a refrigeration or air conditioning system is described which comprises: (A) at least one hydrofluorocarbon selected from the group consisting of difluoromethane (R-32) and 1,1,1-trifluoroethane (R-143a), (B) pentafluoroethane (R-125), (C) at least one hydrocarbon, and optionally (D) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,2-tetrafluoroethane (R-134a) and 1,1,2,2-tetrafluoroethane (R-134).
Patent CA-2195591-C (CA)
Inventor: KAUSER NICOLAS
IPC: H04W64/00
Filed: 1997-01-21
Granted: 2001-09-04
Abstract: A method and apparatus for determining the location of a mobile telephone within the serving area of a mobile telephone system are disclosed. A mobile switching center analyzes the calling mobile telephone number and called telephone number to determine if a location function is required. Upon initiation of the location function by the mobile switching center, a mobile location module calculates a location estimate of the mobile telephone. The mobile location module receives a list of signal strengths received by the mobile telephone from cell site antennas within the serving area. The distance between the mobile telephone and a plurality of cell site antennas is calculated using a technique which reduces the error component of the calculated distances. These reduced error distances are used togeometrically determine an estimate of the location area. In addition, the mobile telephone comprises a GPS receiver/processor for sending the most recent GPS coordinates of the mobile telephone which are within a predetermined confidence level to the mobile location module. These GPS coordinates are compared with the calculated location area to increase the accuracy of the location determination.