baber/WOPTO huggingface dataset:
Patent CA-2218545-A1 (CA)
Title: Method and apparatus for thoracoscopic intracardiac procedures
Inventor: ROTH ALEX T
IPC: A61B5/344
Filed: 1996-03-12
Abstract: Devices, systems, and methods are provided for accessing the interior of the heart, and performing procedures therein while the heart is beating. A tubular access device (22) is positioned through an intercostal space and through a muscular wall of the heart. The access device (22) includes a balloon or flange for sealing (32) the penetration to prevent leakage of blood. An obturator (52) is positionable in the access device, and includes cutting means (60) located at its distal end. Elongated instruments are introduced through the access device to perform surgical procedures including septal device repair, ablation, and electrophysiological mapping.
Patent CA-2218624-A1 (CA)
Title: Method and apparatus for machining holes in crankshafts
Inventor: EGBERT JAMES
IPC: B23Q3/157
Filed: 1996-04-16
Abstract: A crankshaft is mounted in a fixture (30) which rotates the crankshaft about its longitudinal axis and which tilts the crankshaft about a horizontal axis to allow machining of holes such as oil holes at various rotational positions and at various tilt angles to the longitudinal axis. Preferably, a cutting tool (36) moves along a horizontal plunging axis Z to machine holes on or offset from the longitudinal axis. Preferably, a pair of crankshafts are mounted side-by-side in the fixture to machine two crankshafts simultaneously.  The fixture is mounted for tilting by trunnions (124). The pair of crankshafts are spun about the longitudinal axes by a motor carried on the tiltable fixture. An automatic tool changer and loading apparatus (34) store cutting tools and associated guide bushings for the cutting tools.
Patent CA-2221273-A1 (CA)
Title: Screen and method of manufacture
Inventor: FREJBORG FREY
IPC: D21D5/16
Filed: 1996-05-24
Abstract: A screen cylinder, screen, method of manufacture of the screen cylinder, and method of use of the screen cylinder, allow screen capacity to be maximized without sacrificing screen cylinder strength, and while achieving a clean accepts flow. A screen cylinder (10) is constructed in a conventional manner except that at least one reinforcing ring (14) is permanently fastened (typically by continuous or spot laser or electron beam welding, or direct resistance welding) to at least a majority of (and typically essentially all of) the land areas (22) which separate grooves (18) in a row from each other, at the outlet surface of the cylinder. The welds each typically have a width of about 1 to 3 mm (that is they are very small), but that width is typically at least about 75 % of the width of a land area in which it is formed, and the weld has a length of at least about 50 % of the width of the reinforcing ring (14) at the weld. In this way effective slot length of screen cylinders may be about 65 - 90 % of the total screen length, compared to only about 45 - 55 %  for conventional screen cylinders. The screen cylinders are particularly effective in screening cellulose pulps from the pulp and paper industry.
Patent CA-2221332-A1 (CA)
Title: Contraceptive transcervical fallopian tube occlusion devices and their delivery
Inventor: THURMOND AMY
IPC: A61B17/12
Filed: 1996-05-21
Abstract: The invention provides intrafallopian devices and non-surgical methods for their placement to prevent conception. The efficacy of the device is enhanced by forming the structure at least in part from copper or a copper alloy. The device is anchored within the fallopian tube by imposing a secondary shape on a resilient structure, the secondary shape having a larger cross-section than the fallopian tube. The resilient structure is restrained in a straight configuration and transcervically inserted within the fallopian tube, where it is released. The resilient structure is then restrained by the walls of the fallopian tube, imposing anchoring forces as it tries to resume the secondary shape.
Patent CA-2223731-A1 (CA)
Inventor: RAKITSKY WALTER
IPC: C08L1/00
Filed: 1996-06-05
Abstract: L'invention concerne une composition stable d'hydrocolloïde dans laquelle un hydrocolloïde, de préférence de la résine de welan, est dispersée de manière homogène dans un superplastifiant, tels que le naphtalène sulfoné, la mélamine sulfonée, le lignosulfate modifié, leurs dérivés et leurs mélanges, puis dispersée dans un agent régulateur rhéologique qui est une composition de fibres de cellulose produites par des microbes. La composition peut être rapidement hydratée et est utile comme additif stabilisateur dans de nombreuses applications de ciment et de fluide de forage, dans des fluides isolants et dans des compositions de dégivrage.
Patent CA-2223910-A1 (CA)
Title: Aminosterol compounds useful as inhibitors of the sodium/proton exchanger (nhe), pharmaceutical methods and compositions employing such inhibitors, and processes for evaluating the nhe-inhibitory efficacy of compounds
Inventor: SHINNAR ANN
IPC: A61K31/575
Filed: 1996-06-07
Abstract: Aminosterol compounds are described that are useful as inhibitors of the sodium/proton exchanger (NHE). Methods of using such aminosterols compounds are also enclosed, including those employing compounds that are inhibitors of a spectrum of NHEs as well as those using compounds that are inhibitors of only one specific NHE. Advantageous screening techniques and assays for evaluating a compound's therapeutic activity are also disclosed.
Patent CA-2225266-A1 (CA)
Title: Adap-tronic
Inventor: THELLAND RENE
IPC: B60Q1/30
Filed: 1998-02-02
Abstract: Dispositif électronique permettant de rendre compatible tout feux de signalisation entre un véhicule ( domestique ou d' importation ) et une remorque.
Patent CA-2227348-A1 (CA)
Inventor: RITCHART MARK A
IPC: A61B10/02
Filed: 1998-01-19
Abstract: This invention provides an inventive tissue sampling probe which offers many advantages over probes available in the prior art. Unexpectedly superior results are obtained in connection with the retrieval of intact tissue specimens, because of a unique combination of cutting features, including, in particular, the employment of an electrosurgical cutting element which is extendible to permit ready severance of the distal end of the tissue specimen, without impact to surrounding tissue.  Additionally, the inventive instrument is advantageously designed so that portions of the instrument which contact the patient's tissue or fluid discharge (i.e. blood) during a procedure are modular and disposable, to permit ready replacement of those portions with a new module for an ensuing procedure, without the necessity of cleaning and sterilizing the instrument. The versatility of the invention permits its use in many applications, including, for example, breast biopsies, intraoperative staging, laparoscopic surgery, and lymphadenectomy procedures.
Patent CA-2229303-A1 (CA)
Title: Combination lawn/garden ornament and cremation container
Inventor: PARKER DANIEL J
IPC: E04H13/00
Filed: 1998-02-10
Abstract: A combination lawn/garden ornament and cremation container comprises a decorative structure adapted to be displayed outdoors on a lawn or in a garden of a loved one of a deceased and an openable and closable compartment adapted to contain cremated remains of the deceased. In one embodiment the combination comprises a hollow pedestal upon which is mounted a sundial, and a tube positioned within the pedestal with a cap removably secured on an end thereof.  In another embodiment the combination comprises a stepping stone, a portion of which is adapted to be displayed above a ground surface, and a container, integral with the stepping stone, extending downwardly from a lower surface thereof, and a cover removably secured to the container. In yet another embodiment the combination comprises a planter box and a container forming a part of the planter box and a cover removably secured to the container. In still another embodiment the combination comprises a wind chime assembly including a plurality of chimes and a container forming either a part of an upper support from which the chimes are suspended or a part of a chime motion inducing pendulum of the assembly.
Patent CA-2229957-A1 (CA)
Inventor: HOFFMANN REINHARD
IPC: B02C13/284
Filed: 1998-02-20
Abstract: The invention relates to a hammer mill or hammer crusher which is provided with two rotors 2, 3 inside the housing 1. The rotors are essentially encircled by grinding paths 13, which are laterally retractable from the housing in an essentially horizontal direction. Provision is thereby made for the section 23 of the grinding path located behind the vertical sectional plane through the rotor axis and projecting upwards from the lowest part of each rotor to be tilted downwards on retraction of the grinding path 13 and thus freeing this part from the rotor. According to the invention, curved flanges 24, 25 are provided on the downwardly tiltable section, which are supported by a counter-support 30.
Patent CA-2231232-A1 (CA)
Title: Channel mounted activating mechanism for an endoscopic ligator
Inventor: SIMMONS MICHAEL K
IPC: A61M1/00
Filed: 1996-09-06
Abstract: An activating mechanism (20) for activating an endoscopic ligator is disclosed. The activating mechanism (20) includes a mounting component (21) and an activating component (22) coupled thereto. The mounting component (21) inserts directly into the proximal opening of an operating channel of an endoscope and is dimensioned to fit within the operating channel to mount the mechanism (20) to the endoscope. The mounting component (21) includes a channel receiving an activation line of the ligating device which is threaded through the operating channel and the channel in the mounting component, and onto the activating component (22) of the activating mechanism (20). The activation line attaches to a spool (50) of the activating component (22). The activating component (22) further provides a drive pin (40) and a roller clutch (70) for setting the activating component (22) in an engaged or a disengaged position and a knob (60) for rotating the drive pin (40). When the drive pin (40) is engaged with the roller clutch (70), the knob (60) can only rotate in one direction. When the drive pin (40) is in the disengaged position from the roller clutch (70), the knob (60) can rotate in either direction.
Patent CA-2232437-A1 (CA)
Title: Windshield visor for motor vehicles
Inventor: LUND DAVID M
IPC: B60J1/20
Filed: 1996-10-22
Abstract: Windshield visor (10) for motor vehicles having windshield, roof, and driver and passenger side door frames. The windshield visor includes a forward wing (19), a first mounting plate (50), and a second mounting plate (52). The forward wing provides shading from sun light and shielding from precipitation, and has left (21) and right (23) wing tips, top (24) and bottom (26) surfaces, and leading (31) and trailing edges (33). The first mounting plate is connected to the left wing tip of forward wing and attaches to a motor vehicle's drives side door frame. The second mounting plate is connected to the right wing tip of the forward wing and attached to the motor vehicle's passenger side door frame.
Patent CA-2234093-A1 (CA)
Title: Propylene/1-butene random copolymer composition and composite film using the same
Inventor: TANAKA YASUO
IPC: B32B27/32
Filed: 1998-04-06
Abstract: A laminating propylene/1-butene random copolymer composition comprising a propylene/1-butene random copolymer and a low-density polyethylene in a specified proportion. With respect to the propylene/1-butene random copolymer, the content of structural units derived from propylene, content of structural units derived from 1-butene, MFR, Mw/Mn and B-value as a parameter indicating the randomness of copolymer monomer chain distribution fall within specified ranges. With respect to the low-density polyethylene, the MFR and density fall within specified ranges. The invention also provides a composite film comprising a substrate film such as a crystalline polypropylene film and, laminated onto at least one side thereof, a resin layer of the above composition having a thickness of 2 to 200 µm. The above composition is excellent in laminate moldability and enables producing a composite film having excellent low-temperature sealing properties, blocking resistance and hot tack. The composite film is characterized by having excellent low-temperature sealing properties, blocking resistance, slip properties and hot tack.
Patent CA-2235593-A1 (CA)
Inventor: GOATE ALISON M
IPC: G01N33/573
Filed: 1996-10-25
Abstract: Methods are described for detecting the presence or absence of a four amino acid motif (VRXQ) in expressed proteins that arise from aberrant alternative splicing of pre-mRNA in genes associated with normal neurological function.  The presence of these variants suggest that mutational events in these genes have occurred. Nucleotide sequences and nitron-exon junctional sequences of examples of this splicing variant are provided.
Patent CA-2236191-A1 (CA)
Inventor: BANKS RODNEY H
IPC: G01N21/49
Filed: 1998-04-28
Abstract: The concentration of the active ingredient in a rolling oil emulsion can be rapidly determined, and correction of the concentration of the active ingredient can be undertaken by measuring the measuring the amount of light reflected from the emulsion at the peak absorbing wavelength of the dye to obtain a first reflectance value and measuring the amount of light reflected from said emulsion at a wavelength other than the peak absorbing wavelength of the dye to obtain a second reflectance value for at least two different concentrations of the rolling oil in the rolling oil emulsion, establishing a calibration curve, and then monitoring the rolling oil emulsion in like manner. The results may be utilized to feed additional additive to the emulsion, or may be used to feed water into the emulsion system.
Patent CA-2236707-A1 (CA)
Title: Fused tropane-derivatives, their preparation and use
Inventor: SCHEEL-KRUEGER JORGEN
IPC: A61P25/04
Filed: 1996-11-04
Abstract: The present invention discloses compound of formula (I) or any of its enantiomers or any mixture thereof, a pharmaceutically acceptable addition salt thereof or the N-oxide thereof wherein X and Y together form =O, =S, =NOR2, =CR3R4, =N-CN, =N-NR7R8, -(CH2)m-, or -W'-(CH2)p-W"-, or one of X and Y  is hydrogen and the other is -OR5, -SR5, or -NR5R6, Z is hydrogen, -COOR9; R3 and R4 are independently hydrogen, halogen, alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, alcoxy, aryl, arylalkyl, or -(CH2)q-COOR2;  R2, R5 and R6 are independently hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, aryl, or arylalkyl, -CO-alkyl, or -SO2-alkyl; R7 and R8 are independently hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, aryl or arylalkyl; R9 is alkyl, alkenyl or alkynyl; R1 is alkyl, alkenyl, alkynyl, aryl, or arylalkyl; where said aryl groups may be substituted one or more times with substituents selected from the group consisting of halogen, CF3, CN, alkoxy, cycloalkoxy, alkyl, cycloalkyl, alkenyl, alkynyl, amino and nitro; W' and W" are each independently O or S; n is 1, 2, 3 or 4; m is 2, 3, 4 or 5; p is 1, 2, 3, 4, or 5; and q is 0, 1, 2, 3, or 4. The compounds possess valuable properties as monoamine neurotransmitter, i.e dopamine, and serotonine, reuptake inhibitors.
Patent CA-2240689-A1 (CA)
Inventor: OLLIKAINEN AHTO
IPC: E04B1/84
Filed: 1996-11-22
Abstract: The present invention relates to a horizontal frame structure for supporting adjacent areas (4, 4', 4'') in buildings. The structure comprises joists/beams (1, 1', 1''; 2, 2') in at least one layer that can be grouped into isolated staggeredly supporting subarrays of joists/beams over a certain area. The areas (4, 4', 4'') to be sound-insulated from each other are supported each by only one subarray, respectively, of the staggered subarrays formed by the joists/beams (1, 2; 1', 2'; 1'').
Patent CA-2240756-A1 (CA)
Title: Multistage gas and liquid phase separation type condenser
Inventor: PARK TAE-YOUNG
IPC: F28D1/053
Filed: 1998-06-16
Abstract: A multistage gaseous and liquid phase separation type condenser has a pair of headers disposed in parallel with each other, and a plurality of flat tubes each connected to the headers at opposite ends thereof and corrugated fins interposed between adjacent flat tubes. Each header is divided by baffles into four chambers. The second header has a receiver and chambers of the second header have communication passageways for placing the chambers of the second header in flow communication with the receiver. The first header has an inlet pipe connected to a middle chamber thereof so as to form an inlet path and an outlet pipe connected to a lower chamber thereof. While the refrigerant flows through the paths defined by a plurality offlat tubes, a first separation of gaseous and liquid phases of the refrigerant occurs within the second header so that the separated gaseous refrigerant is recondensed flowing through an upper path above the inlet path and introduced into the receiver via the communication passageway, whereas the separated liquid refrigerant is introduced into the receiver. A second separation of gaseous and liquid phases of the refrigerant occurs within the receiver in connection with a certain amount of the liquid refrigerant stored in the receiver. The liquid refrigerant in the receiver is communicated with the lower path via a lower communication passageway formed in the lower chamber of the second header.
Patent CA-2247372-A1 (CA)
Title: Road vehicle sensing apparatus and signal processing apparatus therefor
Inventor: LEES RICHARD ANDREW
IPC: G08G1/042
Filed: 1997-02-05
Abstract: A road vehicle sensor provides an output signal having a magnitude which varies with time through a plurality of values as a vehicle passes the sensor. Signal processing apparatus monitors the timing of sensor signals generated from sensors in adjacent lanes of a highway and provides an indication when such sensor signals could correspond to a double count with a single vehicle being detected by both sensors. Then, the geometric mean of the amplitudes of the sensor signals from the sensors in adjacent lanes is calculated and is used to indicate a double count if the geometric mean is below a threshold value.  Signal processing arrangements are also described to detect tailgating vehicles which may be simultaneously detected by a sensor, and for determining the length of slow moving or stationary traffic.
Patent CA-2247572-A1 (CA)
Inventor: HUBER CLARK N
IPC: G01R19/02
Filed: 1998-09-16
Abstract: An rms (root mean square) converter for obtaining fast rms measurements of power line signals having a frequency of either 50 Hertz or 60 Hertz is provided. The digital samples of the power line frequency signal that arrive at the rms converter are squared and summed in an averaging circuit At the end of each rms measurement period, an average value is provided to a square root circuit which calculates the rms value. The rms measurement period has been chosen to be 50 milliseconds to span the minimum integer number of cycles of the squared of the power line signal, either six cycles for the 60 Hertz frequency or five cycles for the 50 Hertz frequency, to provide rms values at a rate up to 20 rms values per second.
Patent CA-2248860-A1 (CA)
Title: Yankee hood with integral air heating system
Inventor: NOWAKOWSKI GEORGE Z
IPC: D21F5/04
Filed: 1997-02-19
Abstract: A Yankee hood comprises an integral air heating system combining the hood with circulating fans, air heaters and an air flow duct work distribution system into one assembly with the air system apparatus located inside the hood.  Motors for circulating fans and the burner assemblies are mounted on the external face of the hood drive side.
Patent CA-2252418-A1 (CA)
Title: A method to solve the swelling sludge problem in waste treatment plants by controlling mycelium bacteria
Inventor: MAUNUKSELA JYRI JOHANNES
IPC: C02F1/50
Filed: 1997-03-18
Abstract: The objective of the invention is to offer a method to control mycelium bacteria in waste water treatment, in which method the waste water is treated with peracetic acid.
Patent CA-2252749-A1 (CA)
Inventor: ADKINS RICK L
IPC: C07C263/20
Filed: 1998-11-04
Abstract: A process for the production of polymethylene polyphenyl polyisocyanates is disclosed. The process comprises phosgenating the corresponding polyamines in solution in an inert organic solvent, removing excess phosgene, and stripping the solvent, the improvement wherein at least 0.00015 percent by weight of hydrazine or hydrazine derivative per 100 percent by weight of polyamine are added to the polyamines at any time prior to the stripping step.
Patent CA-2256004-A1 (CA)
Title: Domestic oven adapted for use in dehydrating food products
Inventor: SAUTER KENNETH E
IPC: F26B25/12
Filed: 1998-12-14
Abstract: An oven is provided with structure which maintains a door, adapted to extend acorss and seal against an open frontal portion of a heating cavity of the oven, slightly ajar from a fully closed position so as to just break a seal between the door and the oven cavity in order to enable moisture to escape the oven cavity when utilizing the oven for dehydrating food products.      For this purpose, the oven incorporates a spacer element that is movable between a de-activated position, wherein the oven can be used in a conventional manner, and an activated position for use in a drying mode of operation. In a preferred embodiment of the invention, a pivotally mounted spacer element is positioned between the door and a cabinet portion of the oven for movement between the de-activated and activated positions. In this preferred embodiment, the spacer element is automatically movable from the activated to the de-activated position due to gravity upon the opening of the door. The oven also includes a control system for establishing the drying mode of operation and inputting a desired dehydration temperature. In addition, the control system includes an arrangement for overriding the desired dehydration temperature if the set temperature is outside a predetermined temperature range by establishing a predetermined default temperature.
Patent CA-2256928-A1 (CA)
Title: Liquid ejection method
Inventor: TACHIHARA MASAYOSHI
IPC: B41J2/14
Filed: 1998-12-23
Abstract: A liquid ejection method includes a step of preparing a liquid ejection head including an electrothermal transducer element for generating thermal energy contributable to ejection of liquid, an ejection outlet for ejecting liquid, the ejection outlet being provided at a position opposed to the electrothermal transducer element, a liquid flow path in fluid communication with the ejection outlet to supply the liquid to the ejection outlet and having the electrothermal transducer element on its bottom side; a step of applying the thermal energy to the liquid to cause state change to the liquid to create a bubble, wherein the liquid is ejected through the ejection outlet by a pressure of the bubble; wherein the bubble is first in communication with the ambience in a process of reduction of the volume of the bubble after the bubble reaches a maximum volume.
Patent CA-2256971-A1 (CA)
Title: Optical fibre coupler, method for producing the same and optical amplifier using the same
Inventor: OKUTA MICHITAKA
IPC: G02B6/287
Filed: 1998-12-23
Abstract: Disclosed is an optical fiber coupler for multiplexing pumping laser light and signal laser light having ordinary optical fibers on an input side and at least one rare-earth doped optical fiber on an output side. Also disclosed is a method of producing an optical fiber coupler comprising the steps of fusing an ordinary optical fiber and a rare-earth doped optical fiber end to end at a connected section to form a single joint fiber, disposing a pair of single joint fibers in parallel contact with the connected sections thereof aligned, heating to fuse a region of the pair into a fused fiber region, and elongating the heated fused fiber region creating a fused and elongated region to adjust a diameter thereof.