baber/WOPTO huggingface dataset:
Patent CA-2216633-C (CA)
Title: Synthesis of bis-indolylmaleimides
Inventor: SINGH UPINDER
IPC: C07D209/42
Filed: 1996-03-27
Granted: 2002-08-13
Abstract: The present invention provides an efficient process of reacting a bis-indolyl acid of Formula (II), wherein R1 is a hydrogen or C1-C4 alkyl and R, X, and Y  are optional substitutions; to produce a bis-indolyloxallic acid of Formula (III). Compounds of Formula (III) are readily converted to the bis-indolylmaleimides.
Patent CA-2217037-C (CA)
Inventor: GAYLORD KELLY JEAN
IPC: H04W88/00
Filed: 1996-04-04
Granted: 2000-06-06
Abstract: In an Advanced Intelligent Telephone Network system, switching points are programmed to trigger a query to a Service Control Point ("SCP") in response to a dialed "500" number. The SCP performs a data request of an outside database store service provider information, obtaining a service provider identification or a routing number corresponding to the dialed "500" number. The SCP then transmits a switching instruction to the service system point to route the call to the appropriate destination number.
Patent CA-2219533-C (CA)
Inventor: BANHOLZER ROLF
IPC: C07D451/14
Filed: 1996-04-29
Granted: 2006-03-28
Abstract: Precursors of anticholinergically active quaternary compounds can be synthesised from optically active tropic acid by acetylation, conversion into the acid chloride, reaction with amino alcohols of formula (I) (see formula I) (as the methanesulphonate; Q and R are explained in the specification), deacetylation and isolation of the reaction product.
Patent CA-2222717-C (CA)
Inventor: OWEN HARROLD D
IPC: E21B43/117
Filed: 1996-05-31
Granted: 2007-08-21
Abstract: A perforating gun (33) having an elongated mounting strip (35) and a selecte d wave or non-linear, zig--zag form as seen in a plan view, with an outer surface diameter sized f or convenient insertion and removal from a well. The mounting strip (35) has a series of openings spaced in intervals for mounting capsule explosive charges (49) in a phased relationship between 0 and 360 degrees. T he cross-sectional area of the mounting strip (35) around each opening is selected to prevent fragmentation of the carrier upon detonation of the charges. The mounting strip (35) is preferably metallic with a select ed amplitude and wavelength. In each opening is an explosive charge (49) with a hollow cap (51) with a nose (53) for attachment to one of the openings. The cap (51) has an annular, interior thread with a thread run - out (61) of selected width. The explosive capsule (49) has a hollow body having an open end with exterior threads (59) and a width less than the width of the thread run-out (61) in the cap (51) to permit free spinning of the body in the cap (51) after thread makeup for convenient threading and connection with the detonating co rd (43).
Patent CA-2223851-C (CA)
Inventor: CARROLL TIMOTHY J
IPC: A47C21/08
Filed: 1997-12-05
Granted: 2006-02-07
Abstract: An improvement is provided in a bed having a side rail framework, and at least one dual-position rail assembly which is secured on one side of the bed. The improvement includes a rotatable structure upon which the dual-position rail assembly, is mounted in order to enable the dual-position rail assembly to move between two positively-stopped and automatically locked positions. A first of such positively-stopped and automatically locked positions disposes the dual-position rail assembly in an assist, vertically-oriented, position which is perpendicular to the longitudinal axis of the bed. A second of such positively-stopped and automatically locked positions disposes the dual-position rail assembly in a guard, horizontally-oriented, position which is parallel to the longitudinal axis of the bed. The lock structure for assuring such stopped and locked position is one which automatically locks and maintain the assist dual-position rail in a selected one of the positively-stopped and automatically locked first position, or the positively-stopped and automatically locked second position. The dual-position rail assembly is not adopted to be operated by the occupant of the bed, but it can be selectively, otherwise operated to aid a person in getting in or out of bed, or to restrain the person within the bed.
Patent CA-2224505-C (CA)
Inventor: CUPPEN NOLAN W
IPC: E21B33/04
Filed: 1997-12-10
Granted: 2005-05-03
Abstract: A tubing rotator and hanger is used in a wellhead of an oil well. The rotator has a rotator body including a flange and a sleeve projecting from the bottom end of the flange. The flange engages between the wellhead flange and the upper wellhead components, adding a very short height to the overall height of the wellhead. A mandrel extends through a bore in the rotator body and is supported in the body by a bearing supporting a load shoulder on the mandrel. A ring gear is keyed to the mandrel and is driven by a worm extending into a bore in the rotator body flange. In preferred embodiments, the load shoulder and ring gear can be removed from the mandrel, allowing the rotator body to be lifted off the mandrel and a BOP  installed when necessary.
Patent CA-2224531-C (CA)
Title: Conversion of stripped roof material into useful products
Inventor: DE ZEN VIC
IPC: B29C43/02
Filed: 1997-12-09
Granted: 2006-07-11
Abstract: A method of converting stripped roofing material into a useful product comprising feeding roofing material removed during repair or reroofing of a building roof into a shredder introducing particles of material from said shredder together with particles of thermoplastic material and a particulate filler material into a high intensity mixer to form a batch of material to be mixed, intensely mixing said batch of material to produce a heated mass of hot particles of roofing material and filler material coated with molten thermoplastic, then molding said heated mass under pressure into a desired end product. The invention also includes products produced utilizing said stripped roofing material.
Patent CA-2228145-C (CA)
Inventor: WOBBEN ALOYS
IPC: F03D80/40
Filed: 1996-08-05
Granted: 2003-11-04
Abstract: In order to de-ice a wind turbine rotor blade having inter-connected cavities, s heat transfer medium, pre-warmed if necessary, is circulated through the cavities.   A means for introducing a heat transfer medium into at least one cavity behind the leading edge of the blade is installed in the root end of the rotor blade, which is connected to a rotor hub.       There are flow channels which channel the heat transfer medium and connect neighbouring cavities in the end sections of the chambers at the rotor tip end.
Patent CA-2234768-C (CA)
Inventor: WITZIGRUETER JOHN D
IPC: H01M8/04
Filed: 1996-10-17
Granted: 2003-09-16
Abstract: A ventilation system for a metal-air battery having a housing for enclosing at least one metal-air cell (10). The housing (20) has at least one air inlet opening (30) and at least one air outlet opening (35). A fan (40) is positioned to force air into the air inlet opening and out of the air outlet opening when the fan is turned on. The openings are sized with a length in t he direction through the thickness of the housing being greater than a width in the direction perpendicular to the thickness of the housing. The openings ar e unobstructed and are sized to eliminate substantially the air flow into the air inlet opening and out of the air outlet opening when the fan is turned off. According to another aspect of the invention, a fan (80) within the battery housing (72) is positioned to distribute air to two separate sets (7 6- 79) of metal-air cells at the same time. In this configuration, all cells of both sets of cells receive air quickly, and the air received is richer in oxygen because the air paths are shorter than in previous configurations utilizing the same number of cells.
Patent CA-2234984-C (CA)
Inventor: HENRICK ROBERT F
IPC: H04N1/00
Filed: 1998-04-16
Granted: 2001-02-06
Abstract: A system and method for providing a status/confirmation report associated with a facsimile message transmitted by an originating facsimile machine over a telecommunications network. A local or first communication path is provided between the originating facsimile machine and a double dialer and a network or second communication path is provided between the double dialer and a point of presence associated with the telecommunications network. The facsimile message is routed over the local and network communication paths from the originating facsimile machine to the point of presence for subsequent transmission to a destination facsimile machine. After receipt of the facsimile message at the point of presence, the local communication path is disconnected while maintaining the connection of the network communication path. The originating facsimile machine is then caused to change from transmission mode to receiving mode and a status/confirmation report is generated and transmitted over the local and network communication paths to the originating facsimile machine.
Patent CA-2235008-C (CA)
Inventor: MOORE ROLAND S
IPC: F16D65/00
Filed: 1998-04-16
Granted: 2002-01-08
Abstract: A brake actuator and slack adjuster subjected to axial vibration includes a slack adjusting mechanism circumferentially engaging a brake actuating mechanism. A circumferential elastomer bushing is disposed about the brake actuating mechanism for damping axial vibrations experienced by the slack adjuster. One washer having a recess sized to receive and seat one end of the bushing while a shim washer is located at the other end of the bushing and against a bearing race of the slack adjuster.
Patent CA-2238451-C (CA)
Inventor: LEE MYEONG-HWAN
IPC: H04B3/06
Filed: 1998-05-22
Granted: 2001-07-31
Abstract: A co-channel interference canceler and a method therefor. The co-channel interference canceler includes: a co-channel interference rejection filter for outputting a second input signal by removing co-channel interference from a first input signal; a first post processor for removing interference other than co-channel interference from the second input signal; a second post processor for removing interference other than co-channel interference from in the first input signal; and a selection controller for selecting the output of the post processor which has less error by comparing the output of the first post processor with the output of thesecond post processor. Therefore, other interference such as ghost and phase noise included in an input signal are removed or reduced via the extra second post processor which is different from the first post processor of the signal path. The selection of the NRF is controlled using the signal from which other interference has been removed or decreased, thereby minimizing the effects of the other interference. As a result, error in selection of the NRF, which may be caused by the other interference, can be prevented, and selection of the NRF is reliably controlled.
Patent CA-2238784-C (CA)
Title: Bioabsorbable marker having radiopaque constituents and method of using same
Inventor: STINSON JONATHAN SWIFT
IPC: A61F2/86
Filed: 1998-05-27
Granted: 2003-08-05
Abstract: A temporary bioabsorbable-radiopaque marker (14) for use on an implantable endoprosthesis (16). The bioabsorbable-radiopaque marker (14) is adapted to be disposed on or adjacent an implantable endoprosthesis (16) in a body lumen (12) for a predetermined amount of time until the bioabsorbable and radiopaque materials are absorbed or dispersed in the body.
Patent CA-2239693-C (CA)
Title: Anti-tip assembly for power wheelchair
Inventor: PULVER DALE A
IPC: A61G5/04
Filed: 1998-06-05
Granted: 2005-09-13
Abstract: The power wheelchair includes an anti-tip assembly extending from the frame. The anti-tip assembly includes a plate secured to the frame via a dampening mechanism. A first arm extends from the plate and is mounted thereto for a limited amount of relative movement. A grounding engaging wheel disposed on a distal end of the arm is urged toward the ground surface by a biasing spring interposed between the arm and the plate. As the wheelchair begins to tip, anti-tip or resistive forces are generated initially by the biasing spring. This resisting force continues in a linear fashion until relative movement between the arm and the plate ceases. Thereafter, further resistive forces are provided by the dampener as movement of the plate toward the frame is resisted in a linear fashion by the dampener.
Patent CA-2241672-C (CA)
Inventor: MARIK GREGORY C
IPC: H01R4/38
Filed: 1998-06-26
Granted: 2002-02-26
Abstract: A vibration-tolerant torque limiting fastening lug whereupon tightening of the set-screw produces a parasitic torque at the thread plane defining the set-screw/housing interface. The resulting parasitic torque acts in opposite direction to the installation torque such that the actual torque below the thread plane is less than the installation torque. As a result, the tensile force experienced by the set-screw and which acts against the housing of the lug is reduced.
Patent CA-2246392-C (CA)
Title: Procede permettant d'accroitre la vitesse de carbonisation du charbon
Inventor: LEE DAEL WHEI
IPC: C10B57/12
Filed: 1997-12-19
Granted: 2003-05-13
Abstract: Cette invention concerne un procédé permettant d'accroître la vitesse de carbonisation du charbon. Lors de la fabrication de fer doux à l'aide de charbon, on utilise de l'oxyde de magnésium ou de la castine en qualité d'additif permettant de carboniser le charbon. Cet additif permet d'accroître la vitesse de carbonisation du charbon sans avoir d'incidence en ce qui concerne les scories. Une suspension de MgO ou de castine est mélangée au charbon, le mélange ainsi obtenu étant ensuite séché de manière à fixer le MgO ou la castine à la surface du charbon. L'effet de carbonisation est ainsi accru et permet de réduire la quantité de coke utilisée.
Patent CA-2248753-C (CA)
Inventor: BEASLEY CHARLES MERRITT JR
IPC: A61K31/55
Filed: 1996-12-04
Granted: 2008-11-18
Abstract: The invention provides a method for treating extreme aggression comprising administering an effective amount of olanzapine to a patient in need thereof.
Patent CA-2250174-C (CA)
Inventor: ROTH JONATHAN N
IPC: C12Q1/10
Filed: 1997-03-21
Granted: 2003-09-16
Abstract: L'invention concerne un procédé d'analyse et un milieu permettant d'identifier et de différencier quantitativement des substances biologiques dans un échantillon analysé contenant une pluralité de substances biologiques. Une première substance biologique de l'échantillon présente une spécificité enzymatique pour un premier substrat chromogénique, une deuxième substance biologique présente une spécificité enzymatique pour un deuxième substrat chromogénique, et une troisième substance biologique présente une spécificité enzymatique pour l'un des substrats chromogéniques. Ces substrats chromogéniques forment respectivement les premier et second composés insolubles dans l'eau, colorés, obtenus lors de la réaction avec des enzymes spécifiques provenant des substances biologiques. Les première et deuxième substances biologiques sont capables de fermenter un sucre, et la troisième substance biologique ne fermente pas le sucre. Le milieu d'analyse est ajusté à un niveau de pH destiné à modifier la couleur d'un indicateur de pH au cours de l'acidification d'une partie du milieu d'analyse du fait de la fermentation du sucre. Ce changement de couleur entraîne la formation d'une zone colorée autour des composés insolubles dans l'eau des substances biologiques fermentant le sucre, la zone colorée pouvant se distinguer des couleurs des composés insolubles dans l'eau.
Patent CA-2254604-C (CA)
Title: Method of forming metal matrix fiber composites
Inventor: BELL JAMES ALEXANDER EVERT
IPC: C22C49/04
Filed: 1998-11-27
Granted: 2002-08-20
Abstract: The method provides a process for fabricating metal matrix composites. First theprocess coats the fibers with nickel by electrodeposition or gaseous deposition to form nickel-coated fibers. Over-plating the nickel-coated fibers with aluminum by either electrodeposition in a non-aqueous electrolyte or gaseous deposition forms aluminum-coated-nickel-coated fibers. Sintering this product under compression, perpendicular to the fiber's central axis, forms the final metal matrix composite. The metal matrix composite has a nickel-aluminum matrix, very few voids and extended unbroken lengths of fibers within the nickel-aluminum matrix.
Patent CA-2256063-C (CA)
Inventor: BROWN MARK P
IPC: F16H25/22
Filed: 1998-12-15
Granted: 2003-02-04
Abstract: A ball nut and screw system has a ball nut with adjacent helical groove turns providing a helical raceway with a screw for load bearing balls received in the raceway. The nut has an opening extending from its exterior to its interior to permit balls to be fed into the raceway. A compressible snap-in crossover, sized for compressed insertion into the opening, provides an axially diagonal, ball return passage in its underface for channeling balls from one portion of one of the adjacent turns over an intervening land surface on the screw to a portion of another turn to recirculate them. The crossover has opposed portions with nut groove entering projections thereon shaped to be snapped into the turns to define unoccupied turn portions on opposite sides of ball-occupied turn portions when the projections clear the opening upon insertion. For some purposes, wedging retainers can be received in the crossover once it is installed.
Patent CA-2256606-C (CA)
Title: Procedure for subtractive hybridization and difference analysis
Inventor: SCHUELER PAULA
IPC: G01N33/53
Filed: 1998-03-24
Granted: 2008-10-07
Abstract: Improved methods for obtaining polynucleotides comprising sequences which differ between two populations of DNA or cDNA are provided. Improvements include reduction in the number of amplification cycles, use of a nuclease digestion step prior to amplification, a novel oligonucleotide adapter for the practice of the improved method, and novel methods for selective amplification of the desired unique fragments and selective degradation of fragments containing sequences common to both populations. Fragments of a sample population are amplified using a primer that endows the amplification products with resistance to nuclease degradation. Fragments of a control population are amplified using a primer that targets the amplification products for preferential degradation. Multiple cycles of hybridization, nuclease treatment and amplification are utilized to provide enrichment of fragments unique to the sample population. Such unique fragments may represent new or amplified sequences in the sample population, sequences that are differently arranged in the sample population compared to the control population, and sequences that are differentially expressed in a cDNA population. A variation of the technique also allows the isolation of fragments representing deletions in the sample population.
Patent CA-2257011-C (CA)
Title: Tractor hydraulic fluid
Inventor: ZAKARIAN JOHN A
IPC: C10M171/02
Filed: 1998-12-21
Granted: 2011-07-19
Abstract: The invention includes a tractor hydraulic fluid composition containing a major amount of a base oil mixture. The base oil mixture includes a first mineral oil having a kinematic viscosity at 100°C of at least about 4.0 centistokes and a second mineral oil having a kinematic viscosity at 100°C of at least about 7.0 centistokes. The tractor hydraulic fluid composition also contains a first polymethacrylate viscosity index improver and a second polymethacrylate viscosity index improver having a lower shear stability index than the first polymethacrylate viscosity index improver. The tractor hydraulic fluid composition has an unsheared kinematic viscosity at 100°C of at least about 9.1 centistokes, a sheared kinematic viscosity at 100°C of at least about 7.1 centistokes, and an unsheared kinematic viscosity at -40°C of not more than about 20,000 centipoise.
Patent CA-2257959-C (CA)
Title: Device for heating and cooling a beverage
Inventor: OSTERHOFF MICHAEL
IPC: A47J36/24
Filed: 1997-06-10
Granted: 2005-01-11
Abstract: A beverage heating and cooling device (10) has at least one removable beverage con-tainer holding chamber (52A). Each chamber has a spring mechanism assembly (80) to bias a beverage container against a heat transfer member (30) protruding through the chamber-side-wall opening (66). An electronic con-troller (100) controls the operation of a ther-moelectric heating and cooling element (20) connected to the heat transfer member (30).     The controller (100) has a thermal fuse (F1) to protect the device from overheating in the event that the thermal switches (TSC) fail to maintain the heat transfer member (30) at a desired temperature range. When used in a motor vehicle with the ignition off, an auto-matic timer within the controller (100) shuts off the unit after a predetermined time to con-serve power.
Patent CA-2260874-C (CA)
Title: Operation for processing piece goods as well as control process and facility for carrying out the processing operation
Inventor: REIST WALTER
IPC: B65G37/02
Filed: 1997-07-16
Granted: 2004-11-30
Abstract: The claimed processing operation is used to process piece goods. Large numbers of at least similar objects are processed by feeding objects into the operation in streams (PS) of starting products (A), feeding the starting products and/or intermediate products in product streams (PS) to processing steps (7, 8, 12, 14, 15...) where they are processed and then carried away from the processing steps, and discharging the processed objects from the operation in streams of end products (EP). In the incoming and outgoing product streams individual products or product groups are conveyed in a sequence. At each processing step at least one property of a processed product or product group is changed. The claimed operation is charaterized by sequence changes (4, 5, 6, 10, 13, 16, 17...) in which the sequence of products or product groups can be changed by transferring products in or out or combinations of both. As a result, the processing steps can be linked to any degree of complexity and nevertheless the operation can be carried out with great flexibility. Sequence changes as well as at least some of the processing steps can then be controlled according to relevant properties of the incoming products or product groups and/or according to a predetermined sequence to be established.
Patent CA-2261594-C (CA)
Inventor: NITTA KAZUFUKU
IPC: F24F6/18
Filed: 1997-07-08
Granted: 2008-10-14
Abstract: To provide a unit for adjusting humidification capable of improving inconveniences that may otherwise be caused to occur due to damages, while sustaining the humidifying ability and other performance that are to be originally achieved by the humidification adjusting unit. Around the outer surface of the exothermic member (13) are wound multiple hollow fibers (14) each having a minute diameter and having a peripheral wall with minute openings each being large enough to allow water vapor to permeate therethrough yet small enough to fail to permeate water therethrough, and the multiple hollow fibers (14) and the exothermic member (13) are inserted tightly into an extendable mesh cover tube (15) in engagement therewith. In order to perform humidification, water to be supplied to the multiple hollow fibers (14) is warmed by the exothermic member (13) to generate water vapors.  Even if the multiple hollow fibers (14) would be broken or damaged, the water to be leaked from the multiple hollow fibers can be made extremely small in volume by taking advantage of the minuteness of each of the multiple hollow fibers (14), thereby failing to cause to occur any substantial problems that may otherwise cause inconveniences due to the leakage of water.