baber/WOPTO huggingface dataset:
Patent CA-2146872-A1 (CA)
Title: Heating system for barbecue grills and other gas appliances
Inventor: MOORE ROGER R JR
IPC: A47J37/07
Filed: 1994-08-12
Abstract: A heating system for barbecue grills (10) and other gas appliances is disclosed, the system having a U-shaped tubular burner (18) and shield (80). The system may also include a radiant material (92) disposed below the burner.
Patent CA-2148617-A1 (CA)
Inventor: ANDERSSON JAN ANDERS ROLAND
IPC: A61K31/167
Filed: 1993-12-07
Abstract: The use of an inhaler having the capacity to dispense a high proportion of pharmaceutical substance in inhalable powder particles of up to 10 microns in diameter permits the use of a lower metered dose of the pharmaceutical substance as compared with the metered dose required when a conventional MDI is used.
Patent CA-2149243-A1 (CA)
Title: Polybenzazole fibers with ultra-high physical properties and method for making them
Inventor: BUBECK ROBERT A
IPC: D01D5/06
Filed: 1993-11-30
Abstract: A process for making PBZ fibers of ultra-high physical properties is given~  Polybenzoxazole fibers made by the process of this invention have tensile strengths nearly double in value from what has bin reported previously.
Patent CA-2150325-A1 (CA)
Title: Multiphase flow meter
Inventor: ATKINSON IAN
IPC: G01F1/712
Filed: 1995-05-26
Abstract: The invention relates to a device for measuring flow rate of multiphase fluids such as oilwell effluents, containing liquid hydrocarbons, gas, and water. The device comprises: first and second sections situated at a distance one from the other in the flow direction, each including a passage provided with means for inducing a change of speed therein; and respective means for measuring the resulting pressure differences, the pressure different signals obtained in said respective sections being suitable for cross-correlation to produce a signal representative of the total volume flow rate.
Patent CA-2151181-A1 (CA)
Title: Multicast shared memory
Inventor: BENNETT JON C R
IPC: H04Q11/04
Filed: 1995-06-07
Abstract: A linked list for multicast in an ATM network.   The linked list comprises a first cell.  The linked list also comprises a plurality of read pointers.  Each read pointer is associated with a port.  Each read pointer points to the first cell.  A multicast system for an ATM network.   The system comprises a first port through which a cell passes.  The system also comprises a first read pointer associated with the first port.  The multicast system additionally comprises at least a second port through which the cell passes.  There is at least a second read pointer associated with the second port.  The multicast system is comprised of a cell to which each read pointer points.   Furthermore, the multicast system is comprised of a controller for controlling when a read pointer reads a cell.  The system preferably includes a plurality of cells.  Each cell has a cell pointer pointing to a next cell. The plurality of cells forms a linked list.  The controller points a read pointer to the next cell after the cell the read pointer was pointing to is read.   A method for multicasting.   The method comprises the steps of forming a first read pointer and at least a second read pointer.  Each read pointer corresponds to a first port and a second port, respectively.  Each read pointer points to a cell.  Then there is the step of choosing a port.  Next there is the step of locating the read pointer for the port.  Then there is the step of reading the cell to which the read pointer is pointing. Preferably, the cell includes data and the cell includes a cell pointer pointing to a second cell, if there is a second cell.  The first cell and at least the second cell forms a linked list.
Patent CA-2152567-A1 (CA)
Inventor: BUCKLAND KENNETH M
IPC: H04L49/111
Filed: 1995-06-23
Abstract: A method of transferring data from an ATM (asynchronous transfer mode) physical device to an application specific circuit (ASIC) comprised of receiving a continuous stream of ATM cells from the ATM physical device, identifying a virtual circuit from a header of each cell, providing an identification (address) of the virtual circuit to an output for reception by the ASIC, providing a continuous stream of payload contents of each cell received from the ATM physical device directly to an output for reception by the ASIC, calculating a cyclic redundancy check (CRC) on data carried by cells forming each packet for each to virtual circuit address and providing an indication to the ASIC of invalid data relating to a packet having a particular virtual circuit in the event the CRC is indicative that data in a packet is incorrect.
Patent CA-2154590-A1 (CA)
Title: Phase shift colloids as ultrasound contrast agents
Inventor: QUAY STEVEN CARL
IPC: A61K49/22
Filed: 1994-01-19
Abstract: Agents for enhancing the contrast in a diagnostic ultrasound procedure comprise colloidal dispersions of the liquid-in-liquid type, i.e., emulsions or microemulsions, in which the dispersed liquid phase is a liquid having a boiling point below the temperature of the animal to be imaged and which undergoes a phase change from a dispersed liquid to a highly echogenic dispersed gaseous foam or kugelschaum following administration to the animal. The liquid state of the dispersed phase allows one to manufacture extremely stable, pharmaceutically acceptable emulsions with particle sizes typically below 1000 nm. The gaseous state at body temperature yields highly echogenic microbubbles, typically below 10,000 nm in diameter, which are effective as ultrasound contrast agents. Intravenous, intraarterial, oral, intraperitoneal, and intrauterine dosage forms, methods of administration, and imaging techniques are described.
Patent CA-2156891-A1 (CA)
Title: Switched reluctance generators
Inventor: DAVIS REX MOUNTFORD
IPC: H02P9/40
Filed: 1995-08-24
Abstract: A switched reluctance generator is controlled such that flux growth in a phase winding occurs at a faster rate during the initial part of the phase inductance cycle and at a second, slower rate during the subsequent part of  the phase  inductance cycle.   The difference between flux growth and decay may be achieved either by applying different voltages during the two parts of the phase inductance cycle or by applying the same voltage over only part of the phase winding during the initial part of the phase inductance cycle and then applying that voltage across the phase winding thereafter.   It  is advantageous to make the increase in flux more rapid than its decay because minimising the length of time that the flux is present while the phase inductance is rising will minimise the production of unwanted (motoring) torque.
Patent CA-2159514-A1 (CA)
Title: Recovery and up-grading of bitumen from tar-sands
Inventor: JONES MANSEL E
IPC: B03B9/02
Filed: 1995-09-29
Abstract: This Patent relates to new or improved methods for recovery of bitumen and heavy oil from tar-sands and to upgrading the same into marketable petroleum products and energy producing fuels; and to tailings disposal in a more environmentaly acceptable way.       Bitumen and Heavy-Oil are found in many countries, but in Northern and central Alberta they constitute one of the largest Hydrogen-Carbon bodies in the world. These hydrogen carbons are resistant to flow at ambient temperatures and cannot be recovered by conventional oil well drilling.
Patent CA-2161962-A1 (CA)
Title: Adenovirus vectors for gene therapy
Inventor: WILSON JAMES M
IPC: A61K35/76
Filed: 1994-06-06
Abstract: The present invention comprises an improved adenovirus vector and methods for making and using such vectors. The adenovirus vectors of the present invention retain at least a portion of the adenoviral E3 region, carry a deletion of at least a portion of the adenoviral E1 region. Vectors of the present invention preferably also include an additional deletion to accommodate a transgene and/or other mutations which result in reduced expression or over-expression of adenoviral protein and/or reduced viral replication.  The vectors of the present invention further include a transgene operatively-linked thereto. By reducing or eliminating viral replication and viral protein expression, the immune response of the infected host to the virus and viral protein is decreased and persistance of transgene expression can be increased. The adenovirus vectors of the present invention are thus particularly useful in gene transfer and therapy.
Patent CA-2162339-A1 (CA)
Title: Low-pressure discharge lamp
Inventor: LAUTER FRIEDRICH
IPC: H01J61/54
Filed: 1995-11-07
Abstract: The invention relates to a low-pressure discharge lamp having an auxiliary or starting amalgam arranged within the discharge vessel (1). The starting amalgam is located on a support body (7), preferably designed as a metal plate or metal  grid,  which is  coated with an amalgamating partner and is partly sealed-in in the glass bead (6) of the electrode frame or in the stem-tube seal.
Patent CA-2163997-A1 (CA)
Title: Fluid delivery apparatus
Inventor: KRIESEL MARSHALL S
IPC: A61M5/14
Filed: 1994-05-17
Abstract: This invention is an apparatus for accurately infusing medicinal agents into an ambulatory patient at specific rates over extended periods of time. The apparatus is of a compact, low profile, laminate construction and includes either an elastic distendable membrane (50), or a thin barrier member (16) which, in cooperation with a thin planar base (12) defines a fluid chamber (R) having a fluid outlet (28). The apparatus includes an internal stored energy source (18) which functions to controllably expel the medicinal agents from the apparatus. The stored energy source (18) may comprise either a distendable elastomeric membrane (50), or an expandable sponge-like cellular mass (18).
Patent CA-2164303-A1 (CA)
Inventor: COLLARD JEAN-NOEL
IPC: C07C247/16
Filed: 1994-05-05
Abstract: Compounds of general formula (1), stereoisomers and pharmaceutically acceptable salts thereof, wherein each of Z and Z' are independently H or F; Q is (a), CH(OH), (b); X is H, Br, CL F or CF3; Y is H, Br, Cl, F, OH, OR5, OC(O)R4, N3, CN, NO2, SO3H, CO2R4, NH2. NHR9, NR9R9, C(R6)(R7)(V'R8) or C(O)R7, provided that when both Z and Z' are F, then Y is H or F; V and V' are each independently CH2 or O; R1 is H or CH3; R2, R9 and R'9 are each independently (C1-6)alkyl, or R2 and V-R3 taken together with the carbon atom to which they are attached form a 3-6 membered ring; R3, R6, R7 and R8 are each independently H, (C1-6)alkyl, or (C3-6)cycloalkyl: R4 is H,(C1-10)alkyl (C0-4) aryl or (C3-8)cycloalkyl; and R5 is (C1-10)alkyl benzyl, phenethyl or (C3-6)cycloalkyl, possess anticholinesterase activity and may be used in the treatment of Degenerativa Dementias.
Patent CA-2164573-A1 (CA)
Title: Papermaking fabric formed with yarns having a multi-lobed cross-section
Inventor: LINSTAD GARY H
IPC: D04H13/00
Filed: 1995-12-06
Abstract: A papermaking fabric for use in the forming, press or dryer section of a papermaking machine or the like includes a base layer formed at least partially of multi-lobed yarns. The multi-lobed yarns are defined by a plurality of strands fused together to form joints therebetween, with the strands cooperating to define an internal passage. The strands are locally separable so that, during a needling operation in which a fibrous batt layer is secured to the base layer, the needles locally separate one or more strands to force a penetrating portion of the fibrous batt layer therethrough. The portions of the yarn adjacent the local separation grip the penetrating portion of the batt layer, to signifi-cantly increase the batt locking properties of the base layer. The multi-lobed construction of the yarn defines longitudinal indentations which increase the overall void volume of the base layer.
Patent CA-2167066-A1 (CA)
Title: Sensor system
Inventor: MCBRIDE ROY
IPC: G01K5/52
Filed: 1994-06-27
Abstract: A sensor system (10) in an interferometric arrangement has a sensor arm (24) and a reference arm (28). The reference arm (28) is in a stable environment and the sensor arm (24) is arranged to be subject to variations in strain and/or temperature. Radiation from a broadband source (12) propagates through the arrangement and a broadband interferogram is generated as an air gap (114) is scanned. The grammeter is recorded on an oscilloscope (126) and analysed using signal processing software on a computer (128). From the analysis the changes in group delay and optical dispersion of the light in the sensor arm (24) due to strain and temperature changes is measured, and values for the strain and/or temperature changes calculated. A narrowband light source (86) may be used for accurate calibration of path length differences during scanning. The strain and temperature on the sensor arm (24) may be calculated or tested using clamps (30, 32) and a thermal enclosure (34). The system may also be configured in a tandem interferometry arrangement (200) including a sensing interferometer (202) and reference interferometer (204).
Patent CA-2167782-A1 (CA)
Title: Extrusion surge controller and method
Inventor: LUKER KEITH
IPC: B29C48/92
Filed: 1996-01-22
Abstract: An apparatus is provided for extruding a polymer which is subject to periodic surges.  The apparatus includes a barrel with a upstream portion for receiving a  polymer, a downstream portion and a discharge port near the downstream portion.  The apparatus also includes a shaft mounted for rotational movement about a longitudinal axis within the barrel as well as drive means connected to rotate the shaft.  The apparatus has a surge suppressor for urging polymer upstream toward the discharge port while permitting a portion  of polymer to flow downstream into the surge suppressor.  A sensor is positioned within the  apparatus to detect surges in the polymer and a controller is connected to the sensor and to the drive means for adjusting shaft rotation in response to polymer surges.
Patent CA-2170515-A1 (CA)
Title: Nucleotide sequences for novel protein tyrosine phosphatases
Inventor: GONEZ LEONEL JORGE
IPC: C12N5/10
Filed: 1994-09-01
Abstract: The invention relates to the cloning of two novel protein tyrosine phosphatases. Nucleic acid sequences encoding these phosphatases (PTPL1 and GLM-2) as well as anti-sense sequences also are provided. The recombinantly produced PTPL1 and GLM-2 proteins also are provided, as well as antibodies to these proteins. Methods relating to isolating the phosphatases, using the nucleic acid sequences, and using the phosphatases also are provided.
Patent CA-2172268-A1 (CA)
Title: Condom restrainer ring structure with retention notch
Inventor: HESS ROBERT
IPC: A61F6/04
Filed: 1994-09-09
Abstract: A condom retainer ring structure (20) is for use on a condom (10) that has an elongated thin walled tubular sheath of resilient material closed at one end and opened at the other end, with a bead surrounding the opening. The condom retainer ring structure has a first ring (22) for positioning at the periphery of the opening, adjacent the bead that surrounds the sheath. A second ring (24) is connected to and adjacent the first ring. A bridge (26) having a retention notch (28) therein joins the rings generally in a single unflexed condition. In use, when a condom (10) is worn on the penis of a user, the first ring (22) surrounds the sheath on the shaft of the penis, the second ring (24) encircles the scrotum to anchor the condom, and the bridge (26) is flexed thereby, constricting the retention notch (28). The retention notch (28), preferably positioned over the bead of the condom, grabs the bead to retain the condom.
Patent CA-2172978-A1 (CA)
Title: Arteriosclerosis remedy
Inventor: TAKAHASHI KATSUHITO
IPC: A61K48/00
Filed: 1994-02-28
Abstract: Therapeutic agents for arteriosclerosis, which comprise a calponin gene as an active ingredient are provided. The therapeutic agents for arteriosclerosis of the present invention are useful for suppressing the intimal hyperplasia of blood vessels. Hence, the therapeutic agents for arteriosclerosis of the present invention are effective against arteriosclerosis and ischemic heart diseases it induces, such as angina pectoris and cardiac infarction and, in particular, they are very effective in preventing restenosis after PTCA.
Patent CA-2173019-A1 (CA)
Inventor: PEVZNER BORIS
IPC: F17C7/02
Filed: 1996-03-29
Abstract: A cryogenic gas compression system including a storage container and a gas/liquid mixer coupled to the storage container which employs a controlled flow of cryogenic liquid from the storage container to provide gas cooling action, and compressor for compressing the output gas to a high pressure.  A sensor provides an indication of the gas entering the compressor and feeds it to a controller which controls the quantity of liquid cryogen fed from the storage container to the mixer.
Patent CA-2175028-A1 (CA)
Title: Process for the production of acetic acid by carbonylation
Inventor: BAKER MICHAEL JAMES
IPC: B01J27/10
Filed: 1996-04-25
Abstract: In a process for the production of acetic acid by carbonylation of methanol and/or its reactive derivative in the liquid phase in the presence of an iridium carbonylation catalyst, a methyl iodide co-catalyst and a promoter, the beneficial effect of the promoter is enhanced by continuously maintaining in the liquid reaction composition, no greater than 6. 5% by weight water, 1 to 35% by weight methyl acetate and 4 to 20 % by weight methyl iodide.
Patent CA-2176780-A1 (CA)
Title: Polarity-sensitive protector device
Inventor: FIGUEIREDO ANTONIO ALBINO
IPC: H05K1/02
Filed: 1996-05-16
Abstract: Disclosed is a voltage and current protector device (21) designed for insertion in connecting blocks (10). The current and voltage protection elements of the protector are mounted on a printed circuit board (26) which has a conductivepattern (60, 61, 64-70, 71, 72) on both major surfaces such that the elements can be mounted on either surface and the protector device (22) can be inserted into the top or bottom surface of a connecting block depending upon which surface the elements are mounted. (Fig. 5)
Patent CA-2180373-A1 (CA)
Inventor: DEPASQUALE DAVID
IPC: D21H17/56
Filed: 1996-07-02
Abstract: Filled paper is made by adding a cationising amount of cationic polymer to a slurry of precipitated calcium carbonate, mixing this slurry into a cellulosic suspension and forming a thin stock, adding anionic particulate material to the suspension before or after the slurry, mixing a polymeric retention aid into the thin stock which includes the precipitated calcium carbonate and the anionic particulate material, draining the thin stock on a screen to form a sheet and drying the sheet. A suitable slurry for this purpose is a slurry of 5 to 70% by weight precipitated calcium carbonate and cationic polymer selected from 0.1 to 1% cationic starch and 0.01 to 0.3% of a high charge density, relatively low molecular weight, cationic polymer.
Patent CA-2185515-A1 (CA)
Inventor: WOLTER JAMES
IPC: B05B15/06
Filed: 1996-09-13
Abstract: A tree watering device having an elongated tube constructed from tube sections connected end-to-end, a nozzle for spraying, a water inlet, and a hanger for securing the device to a limb of a tree.  The hanger may include a hook that swivels to adjust to the angle of the limb to hold the limb more securely.  Attachments with additional nozzles can be added between any two of the tube sections to spray water at intermediate heights.
Patent CA-2193978-A1 (CA)
Title: Apparatus and method for interstitial laser treatment
Inventor: ANDRUS W ANDRUS
IPC: A61B18/24
Filed: 1995-06-07
Abstract: An apparatus for delivering laser energy to a target through a radiation-transmitting waveguide having a distal end terminating in a tip which is in contact with the target during delivery, while protecting the tip from heat damage, which apparatus comprises a waveguide for transmitting laser radiation and having a distal end terminating in a tip adapted to be placed in contact with the target to deliver laser energy directly to the target at the site of contact, and means for delivering a controlled small amount of liquid to the target adjacent to the tip, which small amount is just sufficient to limit the temperature at the target to not more than the failure temperature of the tip.  An apparatus assembly for performing ILC incorporating a waveguide and a method for protecting the tip of a waveguide from damage is also disclosed.
Patent CA-2198630-A1 (CA)
Title: Acetaminophen sustained-release formulation
Inventor: SHAH SHIRISH A
IPC: A61K31/167
Filed: 1997-02-26
Abstract: An orally administrable sustained-release dosage form includes particles of an active pharmaceutical ingredient which is coated with a polymeric material that is water-insoluble, but water-permeable and water-swellable, so that the sustained-release dosage form provides controlled release which is independent of certain variable physiological factors such as pH. In accordance with one aspect of the invention, the active pharmaceutical ingredient is acetaminophen and the coated acetaminophen particles are combined with uncoated acetaminophen particles to provide a combination immediate-release/sustained-release dosage form. In accordance with another aspect of the invention, the active pharmaceutical ingredient is coated with a methacrylate ester copolymer, and the coated particles are combined with uncoated particles of an active pharmaceutical ingredient to provide a combination immediate-release/sustained-release dosage form, wherein the sustained-release component provides a release rate which is substantially independent of physiological factors such as pH. The final orally administrable dosage form can appear as compressed tablets, capsules or pouches.
Patent CA-2199587-A1 (CA)
Title: Anti-Leak an Anti-Contact Christmas Lamp
Inventor: HUANG SHUN-FENG
IPC: H01R33/965
Filed: 1997-03-10
Abstract: An   anti-leak  and  anti-contact  Christmas   lamp includes a bottom cap,  a tubular socket, a coil spring, an insulating disc and an anti-lead gasket.   The bottom cap   has  curved  recesses  abutting each  other  on  a projecting portion between two parallel walls and ridges between  two abutting curved recesses for  laying  wires therein.   The socket has a bottom annular wall with two opposite   openings  each  having  curved  recesses   to correspond with the curved recesses of the bottom cap so as  to tightly pressing wires therein.   the spring  and the  insulating disc are placed in the socket,  with the disc  pressed  down  by  a  lamp  and  with  the  spring compressed  down  to let the poles of the  lamp  contact with two conductors.   The anti-leak gasket is fixed  on and with an annular upper wall of the socket and tightly in  contact with the glass of the lamp to prevent  water from  leaking into the socket and persons from extending hands into the socket.
Patent CA-2200009-A1 (CA)
Title: Object oriented programming method
IPC: H04L12/70
Filed: 1997-03-14
Abstract: In a method of controlling a computer in an object-oriented environment, descriptors are implemented as an object oriented class to store meta information on other classes in the system.