baber/WOPTO huggingface dataset:
Patent CA-2243307-A1 (CA)
Title: Method and apparatus for handling multiple real-time service events
Inventor: BUCKLER CRAIG L
IPC: H04Q3/00
Filed: 1998-07-15
Abstract: A large number of real-time events are efficiently processed using an integer field incremented based on a periodic timer tick and functioning as a global counter. Other integer fields are created for each received real-time event having a value equal to the value of the global counter plus the period of the event. These other fields are stored at the end of a queue that stores all events having the same period. To determine whether any fields in a particular queue have expired, the system checks only the first field in the queue.
Patent CA-2244280-A1 (CA)
Inventor: MARSCHKE CARL R
IPC: D21F5/10
Filed: 1998-09-14
Abstract: A steam heated web processing roll includes a fully enclosed steam and condensate flow-through system which maintains the roll end walls at approximately the same operating temperature as the functional cylindrical outer roll shell at normal rotational speeds.  The closed loop system also assists in purging non-condensible gases from the steam path.  At low roll speeds or when the roll is stopped, a valving system closes all of the condensate return paths except one or more of the lowermost paths from which condensate pooling in a sump at the bottom of the roll is withdrawn.  This prevents undesirable cooling of the lower portion of the roll as compared to the remaining portion, thereby reducing the possibility of bowing of the roll by thermal distortion.
Patent CA-2244459-A1 (CA)
Inventor: POPP ALBRECHT
IPC: B60R1/06
Filed: 1998-07-31
Abstract: A holding arm for an external motor vehicle mirror is provided with an integrated swivel articulation (1) between two arm segments (2, 3) capable of snapping in in at least one position, its swivel axis (14) being at a right angle to the longitudinal direction of the arm segments (2, 3), whereby - a snap-in element (22, 38) is non-rotatably installed on one arm segment (2), - a counter-snap-in element (25, 42) cooperating with it and subjected to the force of a spring in the direction of engagement with the snap-in element (25, 42) is installed on the other arm segment (3) and is also non-rotatable but capable of being displaced in the direction of engagement in relation to the arm segment (3) and - the counter-snap-in element (25, 42) is suspended on the free end (48) of a leaf-spring-like bearing brace (26, 26') which is attached by its fixed end (~~) to its appertaining arm segment (3).
Patent CA-2245120-A1 (CA)
Inventor: SCHOEBRECHTS JEAN-PAUL
IPC: C07C21/04
Filed: 1998-09-18
Abstract: Le 2-chloroprop-1-ène est préparé par hydrochloration catalytique de méthylacétylène et/ou de propadiène dans un milieu liquide renfermant au moins un catalyseur choisi parmi les composés des métaux du groupe VIIIa et des lanthanides et au moins un solvant organique capable de solubiliser le catalyseur.
Patent CA-2252756-A1 (CA)
Title: Hot-melt adhesives for disposable items and articles made therefrom
Inventor: DIEHL CHARLES F
IPC: A61L15/58
Filed: 1997-05-20
Abstract: Hot-melt adhesive compositions containing high molecular weight linear styrene-isoprene-styrene block copolymers or high molecular weight linear styrene-butadiene-styrene copolymers, having little or no residual diblock, and articles made therefrom. The resulting adhesive composition may include solid tackifying and liquid tackifying resins.
Patent CA-2258384-A1 (CA)
Title: Data slicers
Inventor: POPPLEWELL Andrew
IPC: H03L7/091
Filed: 1999-01-07
Abstract: An input signal is received on a digital line 10 connected to the input of a threshold slicer 60. The threshold slicer 60 provides on an output line 65 a sliced value, as is conventional, which is thereby provided to a first input of the switch 62. The threshold dicer 60 also provides a digital signal on a digital line 66 which identifies the starting state of a state machine. The starting state is determined by observing the sliced valves for two successive slicer levels which correspond to a valid succession of slicer levels, and is passed to a state logic device 63. The state logic device 63 initiates itself using the starting state received and thereafter cycles sequentially through logic states 1 to 8, corresponding to valid successions of slicer levels, with the frequency of the sampling clock. A digital value in the range 1 to 8 corresponding to the current state present in the device 63 is provided on an output line 68. The signal provided on an output line 69 of the switch 61 is, when the line 67 is at a logical 1, that provided on the output line 68 of the state logic device 63. In this way, a state to slice converter 64 is provided, after the initial state determination, with a value corresponding to the current state of the state logic device 63, and provides on its output line 70 a slice value which corresponds to a dicer level corresponding to the current state of the state logic device 63. A  switch 62, after the starting state determination, provides on an output line 27 the signal received on the line 70. In this case the output of the data dicer 22 is determined by the state logic device 63.
Patent CA-2259714-A1 (CA)
Inventor: POTTER GERARD ANDREW
IPC: C07D205/04
Filed: 1997-07-15
Abstract: Procédé de fabrication pour acides N-acylazétidine-2-carboxyliques à enrichissement énantiomorphe, qui repose sur la crystallisation sélective d'un sel diaséstéroisoméique formé entre l'énantiomère requis de l'acide N-acylazétidine-2-carboxylique et un énantiomère de 1-phényléthylamine.
Patent CA-2259776-A1 (CA)
Title: Magnetic assembly for use with a downhole casing perforator
Inventor: BORGSTROM DENNIS V
IPC: E21B31/06
Filed: 1999-01-21
Abstract: A magnetic assembly is used in wells that are lined with a metal casing so as to attract and collect resulting metal debris after perforation of the metal casing by a perforating tool. When the perforating tool was activated in the past, the metal debris typically fell downward inside of the metal casing and needed to be retrieved by a flushing or similar procedure. The present invention involves attaching a magnetic assembly to the bottom end of the perforator tool to collect the metal debris as it falls after perforation of the metal casing. The magnetic assembly includes a steel pipe filled with spaced magnetic discs, and also includes a guide shoe on one end of the pipe and a thread adaptor on the other end. The guide shoe facilitates insertion of the magnetic assembly into the mouth of the well casing, and centres the assembly once inside. The thread adaptor is used to attach the magnetic assembly to the bottom end of the perforator tool.
Patent CA-2260989-A1 (CA)
Title: Method of production and method of separation of 2,4'-dipyridyl derivatives and methods of production of benzoxazepine derivatives and salts thereof
Inventor: KAMEI KATSUHIDE
IPC: C07D413/14
Filed: 1998-05-22
Abstract: A method of production of 2,4'-dipyridyl derivatives by a cross coupling reaction of a 2-halopyridine derivative and a 4-halopyridine using a nickel complex catalyst and a method of separation of a 2,4'-dipyridyl derivative from a mixture of dipyridyl isomers containing a 2,2'-dipyridyl derivative, 2,4'-dipyridyl derivative, and 4,4'-dipyridyl by using a dilute aqueous copper sulfate solution to insolubilize and remove the 2,2'-dipyridyl derivative and 4,4'-dipyridyl are disclosed.
Patent CA-2261795-A1 (CA)
Inventor: HIRAYAMA SHOZO
IPC: G09F9/37
Filed: 1998-05-28
Abstract: An optical dot image display provided with a plate erected on the front and having many light-permeable pores, light-shielding members provided for the respective pores so as to open or close the pores, and a source of light disposed behind the light-shielding members and adapted to illuminate the whole plate. The light-shielding members are moved rearward by a predetermined writing means to open the pores, thereby passing light from the light source to the front and displaying a desired character or a picture on the plate. The light-shielding members are moved forward by a predetermined erasing means to close the pores, thereby blocking light from the light source and erasing the character or the picture displayed on the plate. Plate-like magnets, spherical magnetic members or spherical light-shielding members are used as the light-shielding members. A magnetic rod, a hair pencil, a blowing utensil or the like is used as the writing means. A magnet or an air-sucking member is used as the erasing means.
Patent CA-2264559-A1 (CA)
Title: Balloon catheter with occluded segment bypass
Inventor: GLICKMAN MORTON G
IPC: A61F2/958
Filed: 1997-07-28
Abstract: This invention is an improved balloon catheter (10) wherein an inferior vena cava blood shunt or bypass (22) is provided. Posterior (20) and anterior (25) ports in the wall of the catheter (10) connect to a common lumen (22) within the catheter (10) forming a shunt or bypass (22) for blood flowing in the blood vessel (27). The blood shunt or bypass (22) spans the blockage in the blood vessel (27) generated by enlargement of the balloons (12, 14) of the balloon catheter (10). Bypass port closure apparatus (32, 36, 40) is provided which is operated at the external end of the catheter (10). The bypass port closure device (32, 36, 40) functions to open (Figs. 3a, 3c, and 3e) and close (Figs. 3b, 3d and 3f) at least one of the ports (20, 25) of the bypass (22), effectively opening and closing the bypass (22).
Patent CA-2267790-A1 (CA)
Title: Rapid fabric forming
Inventor: TAM ALBERT S
IPC: D04H3/04
Filed: 1997-10-17
Abstract: The invention is a process and apparatus to rapidly form a flat or shaped fabric and the fabric formed thereby.
Patent CA-2268444-A1 (CA)
Title: Apparatus and method for drilling boreholes
Inventor: HARRELL JOHN W
IPC: E21B47/00
Filed: 1996-10-11
Abstract: The present invention provides a drilling system (10) for drilling of boreholes. The drilling system contains a drill string (20) having a drill bit (50) driven by a mud motor (55). Sensors placed at selected locations in the drill string continually measure various downhole operating parameters, including the diffential pressure across the mud motor, rotational speed of the mud motor, torque, temperature, pressure differential between the fluid passing through the mud motor and the annulas between the drill string and the borehole, and temperature of the circulating fluid. A downhole control circuit processes signals from these sensors and transmits the processed data uphole to a surface control unit (40), which is programmed to operate the drilling system or aid an operator to control the drilling operations in various operating modes. The system also provides means for monitoring the wear condition of the mud motor and to estimate the remaining life of the mud motor during the drilling operations. The drill string also preferably contains formation evaluation and testing devices, such as a resistivity device for determining the formation resistivity, gamma ray device for determining the gamma ray intensity of the formation, an inclinometer for determining the inclination of the drill string near the drill bit and means for determining the drill string azimuth.
Patent CA-2268695-A1 (CA)
Title: Apparatus and method for analyzing information in arrays of information sites
Inventor: WANG EUGENIA
IPC: G16B25/10
Filed: 1999-04-08
Abstract: An apparatus and method for analyzing differences in the information contained in arrays of information sites are provided and which are particularly applicable to the analysis of arrays biological molecular species, for example the expression levels of individual genes. The apparatus and method comprises the means for and steps of, respectively, assigning a numerical value representing the information contained at each site in first and second arrays of information sites, making a ratiometric comparison of the respective numerical values representative of the information contained at corresponding sites in the first and second arrays, generating a numerical result from each ratiometric comparison and outputting the numerical result of the ratio metric comparison of at least one corresponding site in the first and second arrays.
Patent CA-2269937-A1 (CA)
Title: Method for extraction of metals and metal oxides from minerals, industrial by-products and waste materials
Inventor: BODNAR LOU
IPC: C22B13/02
Filed: 1997-10-23
Abstract: A method for separation and recovery of metals and metal oxides from industrial minerals and waste materials containing zinc, lead, cadmium, arsenic, iron, mercury and selenium. The metals and metal oxides in dust form are mixed with a reducing agent and additives, agglomerated, heated above 800 ~C, and contacted with a flow of inert, reducing or slightly oxidizing gases to volatilize the metals and metal oxides for recovering separate from solid residual product.
Patent CA-2270237-A1 (CA)
Title: Refrigerator cabinet incorporating a plastic kickface
Inventor: WOLANIN GERALD L
IPC: A47B95/00
Filed: 1999-04-27
Abstract: A plastic kickface, that consolidates a conventional metal face plate and a plastic kickplate, extends across a lowermost frontal portion of a shell of a refrigerator cabinet assembly. At least one lower door hinge bracket is secured to reinforcement structure of the cabinet shell by fasteners that extend through tubular spacers located in holes formed in the plastic kickface. Provisions are made for creating a seal along a lower section of a door of the refrigerator cabinet assembly by interconnecting the kickface with a sealing strip that is adapted to be engaged by a section of an annular gasket attached to the door of the refrigerator cabinet assembly. When the door incorporates a magnetic sealing gasket, a metal strip is provided, with the strip being integrated into a face portion of the kickface in accordance with certain embodiments of the invention while, in accordance with another embodiment, the strip is first attached to the cabinet shell and then the kickface is interconnected to both the strip and the reinforcement structure.
Patent CA-2272230-A1 (CA)
Title: Blends comprising thermoplastic polyurethane
Inventor: BRUENING INES
IPC: C08L75/04
Filed: 1999-05-18
Abstract: The blends comprise (a) thermoplastic polyurethane having a Shore hardness of from 60 A to 50 D and (b) ethylene-propylene (EPM) rubbers and/or modified ethylene-propylene (EPM) rubbers, where the weight ratio of (a):(b) is from 3:1 to 999:1.
Patent CA-2272745-A1 (CA)
Title: 2-alkyl-19-nor-vitamin d compounds
Inventor: DELUCA HECTOR F
IPC: A61P17/06
Filed: 1998-02-11
Abstract: This invention provides a novel class of vitamin D related compounds, namely, the 2-alkyl-19-nor-vitamin D derivatives, as well as a general method for their chemical synthesis. The compounds have formula (I), where Y1 and Y2, which may be the same or different, are each selected from the group consisting of hydrogen and a hydroxy-protecting group, R6 is selected from the group consisting of alkyl, hydroxyalkyl and fluoroalkyl, and where the group R represents any of the typical side chains known for vitamin D type compounds. These 2-substituted compounds are characterized by low intestinal calcium transport activity and high bone calcium mobilization activity resulting in novel therapeutic agents for the treatment of diseases where bone formation is desired, particularly low bone turnover osteoporosis. These compounds also exhibit pronounced activity in arresting the proliferation of undifferentiated cells and inducing their differentiation to the monocyte thus evidencing use as anti-cancer agents and for the treatment of diseases such as psoriasis.
Patent CA-2272796-A1 (CA)
Inventor: CAMP WILLIAM P JR
IPC: A47L13/144
Filed: 1999-05-26
Abstract: A mop for use on a surface to be cleaned includes a handle and a mop head attached to one end of the handle.      A pair of parallel, spaced apart, uniquely-shaped rollers are rotatably mounted on the mop head. Each roller has an essentially round first surface and an essentially flat second surface extending tangently from the first surface.      A sponge material is interposed and selectively movable between the first surfaces of the pair of rollers and includes a tip for contacting the surface to be cleaned.      The first and second surfaces of the rollers are capable of selectively wringing the sponge material, including the tip, of water.
Patent CA-2273448-A1 (CA)
Title: Roll, calender, and process for operating a roll
Inventor: VAN HAAG ROLF
IPC: D21G1/02
Filed: 1999-06-02
Abstract: Roll for a paper calender. The roll includes a core having opposed end faces and a barrel intermediate the opposed end faces, the barrel having a barrel region. Also included is an elastic cover extending over a working width of the core and a plurality of roller pins, each roller pin engaging a respective end face and having a pin region. Also provided is a temperature control device adapted to supply heat to and/or dissipate heat from the pin regions to a first temperature, and further adapted supply heat to and/or dissipate heat from the barrel region to a second temperature, wherein the first and the second temperatures are different. The present invention also provides a calender that employs such a roll having an elastic cover. Additionally provided is a process for operating such a roll having an elastic cover.
Patent CA-2274741-A1 (CA)
Inventor: DECAUDIN DIDIER
IPC: A61K45/06
Filed: 1999-06-14
Abstract: La présente invention concerne notamment un produit de combinaison comprenant au moins un composé possédant une affinité pour le récepteur mitochondrial des benzodiazépines, et au moins un agent inducteur de l'apoptose pour une utilisation simultanée, séparée ou étalée dans le temps, destiné au traitement du cancer. Un autre aspect de la présente invention porte sur l'utilisation dudit composé et/ou dudit produit de combinaison pour la fabrication d'un médicament notamment destiné à faciliter l'induction de l'apoptose.
Patent CA-2275756-A1 (CA)
Title: Dosing pump and method for enhancing dosing precision
Inventor: HABERLANDER ALBERT
IPC: F04B49/02
Filed: 1997-12-15
Abstract: The invention relates to a method for increasing the dosing precision of a dosing pump which is driven by an asynchronous motor via an eccentric gear. A supply voltage to the motor is switched on for driving the dosing pump for an actuation interval. The supply of the motor is switched off about half a cycle time before it is required to stop the motor to terminate dosing by the dosing pump. The motor is allowed to run freely in an unpowered mode for about one quarter of the cycle time after the switching off step and a DC voltage is applied to it for approximately the next one quarter cycle time to induce an eddy current is induced in a rotor of the motor to generate a counter-magnetic field for braking the rotor to a stand still.
Patent CA-2277144-A1 (CA)
Inventor: CRICHTON JASON M
IPC: B67C3/22
Filed: 1997-12-22
Abstract: Disclosed is a fluid flow nozzle for dispensing fluids from a container filling machine, the nozzle being capable of transforming substantially turbulent fluid flow to substantially laminar fluid flow. The nozzle includes a hollow housing which attaches to the filling machine, and a fluid exit port for dispensing fluid into containers. A torpedo-like member is positioned within the housing so as to restrict fluid flow through the nozzle in such a way as to dampen turbulence out of the fluid in the nozzle. An actuator located within the torpedo-like member functions so as to open and close the fluid exit port.
Patent CA-2279385-A1 (CA)
Title: Surgical instruments with improved traction
Inventor: URQUIDI LUIS
IPC: A61B17/122
Filed: 1998-02-03
Abstract: A surgical instrument (10) is adapted to contact tissue of a patient, and to provide traction with the tissue in order to inhibit migration of the instrument relative to the tissue. The instrument may include a pair of opposing jaws (16, 18) with at least one of the jaws (16, 18) comprising a substrate having a particular surface facing the tissue, and a plurality of discrete elements (26, 28) disposed on the particular surface for increasing the traction of the instrument relative to the tissue. These discrete elements (26, 28) may include a multiplicity of granules, bristles, or projections, and may be formed of materials having various properties such as hydrophilic characteristics. The discrete elements in the form of bristles can be oriented too so that the column strength of each bristle provides increased traction in a predetermined direction.
Patent CA-2279875-A1 (CA)
Title: Applicator for semi-solid medications
Inventor: FERRER FRANCISCO
IPC: A61M31/00
Filed: 1998-02-06
Abstract: An applicator for semi-solid medications comprises a tubular body (20) having a rounded dispensing end (21) provided with at least one opening (26) and a grasping end (22), the inner surface of a proximal portion of said tubular body defining a reservoir for the medication, a plunger (30), initially housed inside the tubular body, which plunger is provided with a rod (31) and grasping means (33), a piston (40), positioned in sealing contact with the inner surface of said tubular body providing a closure for the medication reservoir, wherein said piston has a longitudinal hole (45) through which rod (31) of the plunger is disposed, and wherein said piston initially abuts on a stop means (25) when the applicator is received by the user, a coupling means (35, 46) between rod (31) and piston (40), a closure means for sealingly closing off said opening (26) on said dispensing end, wherein the plunger (30) is extractable from the tubular body until the rod (31) becomes engaged with the piston (40) by the coupling means, where upon the plunger together with the piston is displaceable along the tubular body towards the dispensing end (21) for expelling the medication through opening (26), and wherein the stops means (25) is provided in the form of a projection on the inner surface of the tubular body.
Patent CA-2280007-A1 (CA)
Title: A surface functionalized mesoporous material and method of making same
Inventor: LIU JUN
IPC: B01J20/28
Filed: 1998-02-06
Abstract: According to the present invention, an organized assembly of functional molecules with specific interfacial functionality (functional group(s)) is attached to available surfaces including within mesopores of a mesoporous material. The method of the present invention avoids the standard base soak that would digest the walls between the mesopores by boiling the mesoporous material in water for surface preparation then removing all but one or two layers of water molecules on the internal surface of a pore. Suitable functional molecule precursor is then applied to permeate the hydrated pores and the precursor then undergoes condensation to form the functional molecules on the interior surfaces(s) of the pore(s).
Patent CA-2280805-A1 (CA)
Inventor: JEREBIC SIMON
IPC: H01J61/30
Filed: 1998-12-11
Abstract: The invention relates to gas discharge lamps with electrode structures for dielectrically impeded discharges, in which the electrodes arc divided into groups which can be operated separately and therefore switched independently of each other.
Patent CA-2283169-A1 (CA)
Title: User input device for a computer system
Inventor: FRANCIS DANIEL A
IPC: G06F3/042
Filed: 1998-03-12
Abstract: A user input device for an electronic device is disclosed. The user input device provides positional information using a grid of light. The grid of light is produced from a light source and waveguides. The grid of light is also received and processed using waveguides and a light detector. Optionally, optics may be used to enhance the operation of the user input device. The user input device is particularly suited for use as a user input device for a computer system or the like.