baber/WOPTO huggingface dataset:
Patent CA-2144943-A1 (CA)
Title: Syringe with incrementally actuated plunger
Inventor: NEILL PETER A
IPC: A61M5/315
Filed: 1993-09-20
Abstract: The present invention relates to a syringe for delivering only a single dose of a medicament at each actuation of the syringe.  The device of the invention comprises a cylinder adapted to contain the medicament and having a piston journalled in the bore of the cylinder for axial movement in the bore towards an outlet provided with a needle or adapted to receive a needle in mounting engagement therewith, the piston being adapted to be moved axially within the bore of the cylinder by means of a plunger member, which plunger member carries one or more drive teeth adapted to engage with teeth carried by an axially movable drive member adapted to be acted upon by the user, characterised in that: a) the axial spacing between axially adjacent teeth on one of the plunger member or the drive member corresponds to the forward axial movement of the plunger member required to discharge a single dose of medicament; and b) means are provided for retracting the drive member axially a predetermined distance corresponding to one said tooth spacing with respect to the plunger whereby forward axial movement of the drive member with the teeth of the drive and plunger members engaged is adapted to administer said single dosage of the medicament.
Patent CA-2146096-A1 (CA)
Title: Thermal dispersion probe
Inventor: ANDREAE PETER R
IPC: G01F1/696
Filed: 1995-03-31
Abstract: A controller for controlling the pumping unit for an oil well comprises a housing having a first and a second tip for placement in a flow of oil between the wellbore to holding tanks; means for generating a substantially constant power; a constant power heater in the first tip connected to the means for generating, for radiating a substantially constant heat; means for determining the temperature at each the first and second tips and for generating a digital signal indicative of the temperature of the first and second tips; supervising means for controlling the means for determining, processing the digital signal for determining a rolling average signal, and generating a control signal therefrom which is independent of ambient temperature of the oil flow; and means for switching the pumping unit on or off,according to the control signal. The controller furt her comprises means for calibrating the means for determining. The constant power heater is preferably a FET connected in series with a resistor. The invention also provides a optimizing method for controlling a pumping unit of an oil well.
Patent CA-2148423-A1 (CA)
Inventor: HAKALA HARRI
IPC: B66B7/00
Filed: 1995-05-02
Abstract: A traction sheave elevator consists of an elevator car moving along elevator guide rails, a counterweight moving along counterweight guide rails, a set of hoisting ropes on which the elevator car and counterweight are suspended, and a drive machine unit driving a traction sheave acting on the hoisting ropes and placed in the elevator shaft. The drive machine unit is of a flat construction. A wall of the elevator shaft is provided with a machine space with its open side facing towards the shaft, the essential parts of the drive machine unit being placed in said space. The hoisting unit of the traction sheave elevator consists of a substantially discoidal drive machine unit and an instrument panel mounted on the frame of the hoisting unit.
Patent CA-2150456-A1 (CA)
Title: Process and device for producing pig iron from iron ore or for thermally and/or chemically treating an easily decomposable material
Inventor: VULETIC BOGDAN
IPC: C21B13/14
Filed: 1993-11-29
Abstract: For the production of pig iron from metallic ores, the metallic ores and any required additives flow downwards through a reduction unit through which hot reduction gas containing carbon monoxide and hydrogen flows upwards.  The reduction product is removed at the lower end of the reduction unit and is supplied to another unit for ulterior treatment.  The reduction gas is generated in a gas generator by partial oxidation of carbon carriers or by splitting natural gas or petroleum.  In particularly for processing metallic ores containing at least a high proportion of powdery and/or granulated metallic ores, the metallic ore and any required additives are led downwards in the reduction unit over a series of slanted and staggered cascade gas distributing trays.  The metallic ore and any required additives are sorted into fractions according to their grain size.  The coarse grained fraction of the metallic ores and any required additives are introduced in the top section of the system of gas distributing trays, the finely grained fraction of metal oxides is introduced in the intermediate area of said system and the finely grained fraction of any additives to be added is introduced together with the finely grained fraction of the metal oxides in the lower section of said system.
Patent CA-2150844-A1 (CA)
Inventor: GOODFELLOW JOHN
IPC: B25J9/16
Filed: 1995-06-02
Abstract: A vision system for controlling welding robots and a method of controlling a welding robot using a vision system are disclosed. The vision system includes an ordinary unoriented light source, such as a fluorescent light source, to illuminate a part to be welded so that a light intensity gradient is created along a seam to be welded. An image of the light intensity gradient is captured by one or more fixed solid-state video cameras. The image is compared with a stored image of a reference part so that a deviation of the seam to be welded with respect to the seam of the reference part can be computed for each of a plurality of predefined reference points. The deviation at each reference point is translated by a microprocessor into a coordinate adjustment which is downloaded to a controller for the robot. The controller converts the learned coordinates of the reference part into the actual coordinates of the seam to be welded using the coordinate adjustments provided by the microprocessor, permitting the robot to weld the seam without vision sensing or weld path adjustments during the welding process. The advantage is a cost effective vision system which can be shared among robots, simpler equipment, simpler control software, and increased efficiency because real time weld path correction maneuvers are eliminated.
Patent CA-2151536-A1 (CA)
Title: Process for preparing an aqueous copolymer solution
Inventor: YOSHIDA YOSHIFUMI
IPC: C08F26/02
Filed: 1995-06-12
Abstract: A process for preparing an aqueous solution of an ionic copolumer having a copolymer concentration of 20 % by weight or less and a viscosity of 20 ps or more at 25 °C, which comprises conducting copolymerization of an acrylamide compound(B) with a diallylamine compound(A) by continuously adding an aqueous solution of (B) having a concentration of 30% by weight or less to an aqueous solution of the diallylamine compound(A) having a concentration of 5 % by weight or more and less than 10 % by weight, and this process exhibit high conversion of diallylamine compounds, of which reactivity is low, and a copolymer having a high molecular weight can be obtained.
Patent CA-2154553-A1 (CA)
Title: Washing method and composition
Inventor: MARCUS THOR
IPC: C11D11/00
Filed: 1994-02-24
Abstract: It is disclosed a process for cleaning vehicles, especially cars, with an alkaline washing composition, preferably comprising one or more surfactants, where the washing composition is sprayed onto the vehicle with one or more nozzles or foam generator and where the allcaline washing composition in connection with the spraying onto the vehicle is combined with an aqueous solution of a cellulose derivative forming a semi-stable composition with congeals and absorbs/adsorbs the dirt particles removing them from the surface when the composition is rinsed off. It is preferred to add fibers in the rinsing water when hosing the composition off or in the cleaning solutions, and it is also preferred to perform the process at a pressure, e.g. 1-150 bars. The two components forming the cleaning composition are preferably combined by using an ejector system operated with water for obtaining the relevant concentrations of each component. The fiber dispersion may also be used separately with convientional washing compositions.
Patent CA-2156530-A1 (CA)
Title: Active pixel image sensor
Inventor: DICKINSON ALEXANDER GEORGE
IPC: H04N5/374
Filed: 1995-08-18
Abstract: An active pixel image sensor according to the invention includes multiple sensing elements and active pixel circuitry for controlling the capture and transfer of the video signals.  The active pixel circuitry is shared by the multiple sensing elements.  A plurality of the active pixel image sensors form an imaging array for imaging an object.  Preferably, the imaging is in color.
Patent CA-2159545-A1 (CA)
Inventor: MATSUNO MITSUYOSHI
IPC: F16H41/24
Filed: 1995-09-29
Abstract: A drive plate (E) for an automotive vehicle for transmitting a torque from a crankshaft (6) to a torque converter (7), while absorbing a thrust load applied from the torque converter to the crankshaft is formed with: a central mount portion (11) for mounting a crankshaft; an outer gear (20) formed in an outermost circumference of the drive plate; a plurality of weight reducing holes (30) formed between the central mount portion and the outer gear at regular angular intervals; and a plurality of the outer mount portions (12) for mounting a torque converter (7) formed near an outer circumference of the drive plate at regular angular intervals. In particular, the outer mount portions (12) are formed in such a way as to project radially inward from the outer gear (20) into the weight reducing holes (30), respectively. Since the virtual bending radius (deformation length L) of the drive plate can be increased, the bending angle (DA1) can be reduced when a thrust load is applied from the torque converter to the drive plate, so that it is possible to reduce a bending stress concentrated at the central mount portion (11) as small as possible, for prevention of the drive plate from being damaged.
Patent CA-2160131-A1 (CA)
Inventor: LAMBERT BART
IPC: A01N63/00
Filed: 1994-02-25
Abstract: The present invention relates to transformed microrganisms comprising DNA molecules encoding Bacillus thuringiensis proteins with insecticidal activity. The invention relates more particularly to transformed microrganisms comprising DNA molecules encoding the protease resistant toxins BTS02618Aa or BTS02618Ab.
Patent CA-2160547-A1 (CA)
Inventor: BUTLER WALT R
IPC: A01D42/00
Filed: 1994-04-15
Abstract: A mulch plate (10) for mounting over the chute outlet of existing mowers (12) to contain mows clippings so that said clippings may be drawn back under the mower for recalling by the circulation of air induced by covering the mower chute (22) with the mulch plate (10).
Patent CA-2163980-A1 (CA)
Title: Tree stand
Inventor: KALMAN JEFFREY M
IPC: A47G33/12
Filed: 1994-05-28
Abstract: A Christmas tree stand (10) which comprises a receptacle (12) and a two-piece base (14) is provided. The receptacle (12) is placed over the trunk (T) of a tree and a clamping assembly is used to secure the tree within the receptacle (12). The receptacle (12) is then inserted into a top portion (16) of the base (14). The top portion (16) of the base (14) is moveable with respect to a bottom portion (18) of the base (14). A movement assembly (20) is provided which enables one person to easily move the top portion (16) with respect to the bottom portion (18). Additionally, the top portion (16) of the base (14) includes a cavity (24) for holding water.
Patent CA-2166803-A1 (CA)
Title: Cup
Inventor: ALBREKTSSON BJOERN
IPC: A61F2/46
Filed: 1994-12-21
Abstract: The invention relates to a cup-shaped member for a hip joint prosthesis, for implantation into a cavity in the bone tissue in the acetabulum, comprising an acetabular cup (1) made of metal, a ceramic material or any other suitable material, preferably of titanium, the outside of said cup being rotationally symmetrical around a central axis of symmetry. The outer side of the cup (1), that is the side which is to face the bone tissue, is provided with at least one circumferential bead (5) close to the edge of the cup (1), said bead (5) having a barb-like shape in section and consequently allowing the cup (1) to be pushed into said cavity but counteracting the removal of said cup (1) from said cavity, said outer side including said bead(s) (5) being provided with a rough structure serving as a file when said cup (1) is moved or rotated in said cavity.
Patent CA-2168935-A1 (CA)
Inventor: GRIPPI NICHOLAS A
IPC: B01L3/14
Filed: 1996-02-06
Abstract: A  blood  collection  assembly  includes  an  evacuated container having an open end with a puncturable stopper therein.  A liquid impermeable receptacle in the container contains an additive and is removably immobilized in the stopper.    In a method for preparing a blood sample for analysis, the stopper is punctured by a cannula connected to a blood supply.   The cannula is then advanced until it contacts and dislodges the receptacle from the stopper causing the additive to be released directly into the container where it mixes with incoming blood.
Patent CA-2169578-A1 (CA)
Title: Wheelbarrow
Inventor: BISAILLON GERARD J
IPC: B62B1/18
Filed: 1996-02-15
Abstract: Conventional wheelbarrow are difficult to steer, particularly when fully loaded. The wheelbarrow of the present invention provides a simple solution to this problem. The wheelbarrow includes a pair of L-shaped axles carrying wheels (or skis for winter use) rotatably mounted in vertical sleeves on the frame of the wheelbarrow. A crossbar on the front end of a pair of handles carries a shaft rotatable in cylindrical bushings on the frame. A linkage connects the front end of the shaft to levers on the vertical arms of the axles, so that rotation of the handles results in rotation of the shaft and consequently rotation of the axles and wheels around the vertical axes of the vertical arms of the sleeves to steer the wheelbarrow.
Patent CA-2169852-A1 (CA)
Title: Self-addressable self-assembling microelectronic systems and devices for molecular biological analysis and diagnostics
Inventor: HELLER MICHAEL J
IPC: C12Q1/6816
Filed: 1995-07-05
Abstract: A self-addressable, self-assembling microelectronic device is designed and fabricated to actively carry out and control multi-step and multiplex molecular biological reactions in microscopic formats. These reactions include nucleic acid hybridizations, antibody/antigen reactions, diagnostics, and biopolymer synthesis. The device can be fabricated using both microlithographic and micro-machining techniques. The device can electronically control the transport and attachment of specific binding entities to specific micro-locations. The specific binding entities include molecular biological molecules such as nucleic acids and polypeptides. The device can subsequently control the transport and reaction of analytes or reactants at the addressed specific micro-locations. The device is able to concentrate  analytes and reactants, remove non-specifically bound molecules, provide stringency control for DNA hybridization reactions, and improve the detection of analytes. The device can be electronically replicated.
Patent CA-2170997-A1 (CA)
Title: Optical fibre organizer
Inventor: MACKEN LUK JOZEF
IPC: G02B6/44
Filed: 1994-09-02
Abstract: A base for an optical fibre organizer, which comprises: a first passage along one longitudinal edge portion for incoming fibres; a second pasage along an opposite longitudinal edge portion for outgoing fibres; a plurality of first fibre guides separated from one another along the length of the base and extending from the first passage across the base towards the second passage where fibres in said guides are directed away from the plane of the base; a plurality of second fibre guides separated from one another along the length of the base and extending from the second passage across the base towards the first passage where fibres in said guides are directed away from the plane of the base.
Patent CA-2171936-A1 (CA)
Title: Electrodialytic conversion of complexes and salts of metal cations
Inventor: VAUGHAN DANIEL J
IPC: C25B1/22
Filed: 1993-09-16
Abstract: Complexes and salts of metal cations in aqueous solutions are electrodialytically converted into a solution of acids substantially free of metal cations and insoluble metal hydroxides. Metal cations are insolubilized by hydroxyl ions formed in a catholyte while anions are electrotransported from the catholyte and converted into a solution of acids by hydrogen ions formed in an anolyte of an electrodialytic process. The conversion process is carried out electrically without the electrotransport of metal cations and is especially useful for reforming solutions of acids that form complexes when etching and finishing metal surfaces.
Patent CA-2171993-A1 (CA)
Inventor: LINARD DANIEL
IPC: B01D53/02
Filed: 1996-03-18
Abstract: Procédé de séparation de composants d'un mélange de gaz par adsorption sélective sur une matière adsorbante dans des réacteurs fonctionnant en cycles d'adsorption et de désorption séquentiels, comportant des étapes successives d'admission des gaz à traiter et de mise sous pression en vue de réaliser une adsorption sélective, un échappement préférentiel du composant moins adsorbé et une désorption au moins partielle à pression réduite du composé adsorbé préférentiellement, suivie de préférence d'une purge de désorption finale, caractérisé en ce que les phases d'adsorption et de désorption sont commandées à l'aide de vannes déroulantes.
Patent CA-2172103-A1 (CA)
Title: Safety interlock system for telecommunication amplifiers
Inventor: FISHER LAWRENCE R JR
IPC: H01H9/10
Filed: 1996-03-19
Abstract: AC power at 15 amps and a radio frequency signal are transmit-ted in a coaxial cable to a telecommunications amplifier.  The AC signal is separated from the RF signal by a radio frequency module.  The AC signal is converted to a regulated DC voltage for supplying power to condition and amplify the radio frequency signal transmitted from the amplifier.  A power supply module in the amplifier is connected through a bank of fuses and a power switch to the RF module.  A cover plate overlies the fuses and the electrical connection between the power supply module and the RF module.  The power switch includes a toggle lever movable between power on and power off positions to transmit power between the modules.  To prevent exposure of operating personnel and the electrical equipment to the hazards of high voltage and electric shock, the toggle switch obstructs movement of the cover plate exposing the fuses in a power on position.  The toggle switch must be pivoted to the power off position before the cover plate can be moved to allow access to the fuses and the line voltage test points.  Retaining screws and hold-down screws lock the cover plate in the power on position.
Patent CA-2172206-A1 (CA)
Inventor: JAEGER GERARD
IPC: H01L23/40
Filed: 1996-03-20
Abstract: The present invention concerns an electronic power module comprising several integrated power circuits which may, for example, be insulated gate bipolar transistors (IGBT).
Patent CA-2178817-A1 (CA)
Title: Multi-component packaging system
Inventor: HUDSON SIMON JOHN
IPC: B65D81/32
Filed: 1994-12-14
Abstract: A package comprising a plurality of filled sealed containers containing dispensable materials, adjacent containers (20a, 20b) being connected by a joint (40) which comprises a tear means (50) allowing both container to be torn open with a single tearing action.
Patent CA-2178988-A1 (CA)
Title: A venturi flow meter for measurement in a fluid flow passage
Inventor: HIRON STEPHANE
IPC: E21B47/10
Filed: 1996-06-14
Abstract: The invention relates to a device for measuring the flow rate Q of a fluid in a fluid passage, in a well, the device comprising a first venturi section and first means responsive to the pressure difference .DELTA.P1 across the first venturi section between two points that are separate from each other in the flow direction. It comprises a second venturi section, and second means responsive to the pressure difference .DELTA.P2 across the second venturi section between two points that are separate in the flow direction, the two venturi sections being disposed relative to each other in such a manner that for a given direction of fluid flow, the diameter of one of them increases whereas the diameter to the other one of them decreases, said venturi sections being further arranged in such a way that the static pressure components present in said pressure differences .DELTA.P1 and .DELTA.P2 can be cancelled out.
Patent CA-2182260-A1 (CA)
Title: Apparatus and methods for multiplexing, recording and controlling the display of image data, and recording medium therefor
Inventor: KAWAMURA MAKOTO
IPC: H04N21/488
Filed: 1996-07-29
Abstract: Digital image data which has been compressed in accordance with the MPEG system and corrected for aspect ratio is multiplexed with correction data provided as PSM data for correcting the aspect ratio of such digital image data in the letterbox mode, squeeze mode or the like. The PSM data is detected from the bit stream by a PSM detector and a control signal is generated in response to the detected PSM data for controlling filters of a display so that the latter displays an image in the correction state.
Patent CA-2183289-A1 (CA)
Title: Differential Pressure Sensing Device for Pneumatic Cylinders
Inventor: RASMUSSEN JOHN
IPC: F15B15/28
Filed: 1996-08-14
Abstract: A differential pressure control switch system for use in determining the relative position of a piston in a pneumatic cylinder in relation to a pre-set threshold pressure sensing by the differential pressure in the supply side and exhaust side of a double acting pneumatic cylinder and a four-way directional control valve associated therewith. The control switch system of the invention determines end of stroke dynamic rather than absolute piston position which can vary depending on application parameters.
Patent CA-2185379-A1 (CA)
Title: Method for serial analysis of gene expression
Inventor: KINZLER KENNETH W
IPC: C12N15/10
Filed: 1996-09-12
Abstract: Serial analysis of gene expression, SAGE, a method for the rapid quantitative and qualitative analysis of transcripts is provided.  Short defined sequence tags correspond-ing to expressed genes are isolated and analyzed.  Sequencing of over 1,000 defined tags in a short period of time (e.g, hours) reveals a gene expression pattern characteris-tic of the function of a cell or tissue.  Moreover, SAGE is useful as a gene discovery tool for the identification and isolation of novel sequence tags corresponding to novel transcripts and genes.
Patent CA-2187607-A1 (CA)
Title: Internal pollution preventing apparatus for handpiece
Inventor: TSUKADA YOSIRO
IPC: A61C1/05
Filed: 1996-10-10
Abstract: The invention provides an internal pollution preventing apparatus for a handpiece wherein a valve itself is small and compact and a housing is small in size and which is small in number of parts and superior in assembling facility, airtightness and economy. The apparatus has an air turbine drive air circuit A for supplying, when the handpiece operates, air of a comparatively high pressure via a valve 1, an exhaust air circuit D for exhausting air after having driven an air turbine of the handpiece, a chip air circuit B for supplying air for the atomization of cooling water via valves V1, V2, V3, V4 and V5, and a low pressure air feeding circuit E for feeding air turbine stopping and circuit internal pressure keeping air of a low pressure to the drive air circuit and the chip air circuit via further valves. An exhausting change-over valve V6 for opening and closing the exhaust air circuit with respect to the atmospheric air is provided in the exhaust air circuit D in such a manner as to be directly opened or closed by a pilot pressure in the drive air circuit A or the chip air circuit B. The apparatus is characterized in that each valve is formed in a mushroom shape.