baber/WOPTO huggingface dataset:
Patent CA-2260138-A1 (CA)
Title: Electric connection
Inventor: B TTCHER BODO
IPC: H01R13/658
Filed: 1997-07-25
Abstract: An electrical interconnection arrangement for connecting together two pieces of electrical equipment, comprising: (a) a first connection component (110) comprising a first elongate conductive member (114) which in use is at a relatively high voltage, enclosed within insulating material (116) and protruding at one end beyond an end surface thereof, the other end (120) of the first member (110) being arranged for electrical connection with one of the pieces of electrical equipment, wherein said one end of the first conductive member (114) has an enlarged radiussed region within the insulating material (116) adjacent the protruding portion (118) thereby to provide electrical stress relief at the exposed surface of the insulating material, and (b) a second connection component (112) comprising a second elongate conductive member (126) enclosed within insulating material (128) and having a socket (130) exposed at an end surface thereof for receiving the protruding end (118) of the first conductive member (114), the other end (132) of the second member (112) being arranged for electrical connection with the other of the pieces of electrical equipment; wherein a respective conductive layer (122, 134) extends over the surface of the insulating material (116, 128) of each connection component at its said one end and extends therealong towards it other end, thereby to provide electrical screening, which in use is substantially at earth potential, at said one end region of the component, each conductive layer terminating in respective first and second connection portions at respective one ends.
Patent CA-2260939-A1 (CA)
Inventor: DIJSTELBERGEN HARMEN HEIN
IPC: G01F3/08
Filed: 1999-02-05
Abstract: Measuring device with a rotary piston gauge which is placed in a pressure chamber, which pressure chamber comprises a supply opening and a discharge opening, in which a slack flexible membrane divides the space in the pressure chamber in a first sub-space in which the inlet opening of the measuring module ends, and a second sub-space in which the discharge opening ends. The membrane forms a loop-shaped wall which envelopes the measuring module while leaving open the discharge opening of the measuring module, in which the extremities of the cylinder formed by the flexible wall are covered by means of a lid, in which the area enveloped by the wall and the lids ends in a passage opening. A feed-through pipe connects the passage opening with the supply opening of the pressure chamber. Both the supply opening and the discharge opening of the pressure chamber are provided with restrictions. The passage opening is arranged in one of either lids or in the flexible wall in the extension of the discharge pipe.
Patent CA-2262640-A1 (CA)
Title: Fiber optics apparatus and method for accurate current sensing
Inventor: BLAKE JAMES N
IPC: G01R15/24
Filed: 1997-08-01
Abstract: A fiber optics sensor (10) and method for attaining accurate measurement are provided. A polarization maintaining optic fiber (22) forms a linear optical path. An optical element (40) is used to convert linearly polarized light waves to circularly polarized light waves which propagate along the optical path and pass through a sensing medium (32).  Because of external stresses and disturbances, the optical element (40) introduces light of the wrong state of polarization into the optical path. The result is a scale factor error in the measurement and an extra incoherent D.C. light detected at the detector (46). The presence and magnitude of the extra incoherent D.C. light is used to provide a normalizing factor to compensate for the scale factor error.
Patent CA-2262802-A1 (CA)
Title: Heat insulating paper cups
Inventor: PENN DIANA L
IPC: B31B15/00
Filed: 1999-02-24
Abstract: A heat insulating paper cup with improved insulation in areas where printed matter exists. The printed matter is applied using a water-based alkyd or epoxy ink.  In one embodiment the cup can include a body member having an inside surface and an outside surface, and a bottom panel member having a upper surface and a bottom surface. The body member is coated on its outside surface with a foamed synthetic resin, and on its inside surface with an unfoamed synthetic resin. The bottom panel member is optionally coated on its upper surface with a foamed or an unfoamed synthetic resin. The body member and bottom panel member are oriented and joined to form a seal at an interface between a portion of inside surface of the body member and a portion of the upper surface of the bottom panel member. The printed matter is applied prior to foaming of the synthetic resin on the outer surface of the cup.
Patent CA-2263216-A1 (CA)
Title: Atmospheric detection system for an automated mining system
Inventor: STICKEL DANNY L
IPC: E21C27/24
Filed: 1999-02-26
Abstract: An atmospheric detection system for use in a mine that includes a continuous miner used in highwall applications. The continuous miner includes a rotary cutter head attached to a frame and one or more motors for driving the rotary cutter head. A methane sensor adapted to detect an atmospheric condition is mounted to the continuous miner and positioned in close proximity to the rotary cutter head. A display is coupled to the methane sensor for displaying the atmospheric condition of the mine at a location remote of the methane sensor. A tramming conveyor and a load-out vehicle can be coupled to the continuous miner. The atmospheric detection system is adapted to be used in an underground mine where the continuous miner is positioned in a portion of the mine having an unsupported roof. The atmospheric detection system can be used in wing mining applications as well as highwall mining applications.
Patent CA-2263407-A1 (CA)
Title: Time-based media processing system
Inventor: LEVITT DAVID
IPC: G06F3/048
Filed: 1997-07-28
Abstract: Existing media signals are processed to create new media content by defining content representations for the existing media and establishing functional dependencies between the representations. The content representations comprise different data types which determine the kinds of operations that can be performed and dependencies that can be established. Among the types of transformation that can be achieved are synchronization, sound substitution, and the creation of parametric special effects. The content representations and their functional dependencies are combined to construct a functional dependency network which causes the desired transformations to occur on input media signals. The inputs to the functional dependency network are parametrically specified by media data types to construct a template that can be used to create adaptive media productions.
Patent CA-2264187-A1 (CA)
Inventor: LEE RICHARD J
IPC: A47B23/00
Filed: 1997-08-29
Abstract: A collapsible music stand (100) with optional multiple desks having dualangular and vertical adjustability. The music stand includes a height adjustment mechanism comprising a guide wire (216) which frictionally engages a groove (252) rendering the mechanism one with continuous height frictional force adjustability. The music stand further includes a plurality of arrangements of single and multiple desks, dowels (204) with tapered ends (764) for ensuring the firm coupling of its components, an optional tray with a further optional candelabra (1172), an optional bracket (1286) for coupling a lamp (1288) to the stand, pivotally adjustable tabs (1405) to accommodate wide pieces of sheet music, and detachable legs (1508) facilitating portability. A versatile music stand can be adjusted to support music at a variety of angles and is configurable as a larger and more stable conductor's stand, or to hold a musical instrument, or as a lecturn. A durable and high quality music stand includes a desk (102) manufactured using a bookmatching method.
Patent CA-2265707-A1 (CA)
Inventor: HELLUM PAL
IPC: H04L12/70
Filed: 1997-09-11
Abstract: The present invention relates to an apparatus and a method for synchronization, of at least two time stamping clocks (213; 214; 310, 311) in a network, with high accuracy as well as a method for measuring transmitting delays of packets, with high accuracy. In more detail the present invention comprises a GPS-receiver (207; 307) which supplies TOD (Time of Day) and PPS (Pulse per second) to a synchronization function (209, 210; 308, 309). The synchronization function uses TOD to be able to calculate an absolute time for said time stamping clock. This arrangement allows for a synchronized absolute time between the time stamping clocks in the different nodes (101, 102; 201, 202; 301, 302) with a resolution of 1 second. The PPS pulse is used to synchronize the clocks with an accuracy of 1 microsecond. The time stamping clocks in the different nodes in the network is phase-locked to networksynchronization clocks (205; 305). By adjusting the frequency of the time stamping clocks a suitable resolution can be obtained within each second.
Patent CA-2266128-A1 (CA)
Title: Improved method for purifying acrylic acid
Inventor: ESCH MARC
IPC: C07C51/487
Filed: 1997-09-12
Abstract: Process for purifying acrylic acid in order to remove the polymer-type impurities in those places in the distillation columns in which they have a tendency to accumulate, and more particularly a process directed towards removing the polymeric impurities which are formed during a step for removing the aldehyde impurities from acrylic acid, according to which step the medium containing the acrylic acid to be purified is distilled by adding to this medium at least one amino compound of hydrazine type and by flushing away, at the foot of the distillation column, the heavy compounds formed by the said hydrazine-type amino compound(s) with the impurities.According to the invention, the acrylic acid to be purified is also distilled in the presence of at least one compound from the class of nonionic surface agents and of at least one polymerization inhibitor. Polysaccharide ethers and acetates, in particular ethers derived from cellulose or starch, may be mentioned as nonionic surface agents.
Patent CA-2266671-A1 (CA)
Inventor: WILKINSON DAVID P
IPC: H01M8/02
Filed: 1997-09-18
Abstract: A method and apparatus detects and locates perforations in membranes used in electrochemical cells. The membrane has first and second oppositely facing major planar surfaces. The first surface is exposed to a first reactant fluid, preferably a gaseous mixture comprising hydrogen, while the second surface is exposed to a second reactant fluid, preferably ambient air comprising oxygen.  The first and second reactant fluids are substantially fluidly isolated from each other by the membrane when no perforations are present in the membrane.  The first reactant fluid contacts the second reactant fluid when at least one perforation is present in the membrane. The first and second reactant fluids exothermically react upon contact, preferably in the presence of a catalyst, to generate heat, which is then detected using an infrared thermal detector or thermal imaging device or a layer of thermally sensitive film positioned in proximity with the membrane.
Patent CA-2267174-A1 (CA)
Title: Dual compartment package
Inventor: MILIO RONALD JOHN
IPC: B65D83/76
Filed: 1997-10-09
Abstract: A dispenser having at least two compartments (12, 54) wherein the amount of product dispensed by pumps (14, 48) from at least one of the compartments (12, 54) can be adjusted prior to dispensing. Advantageously, products in both compartments (12, 54) are dispensed using the same actuator. Different volumes of product can be dispensed from at least one of the chambers (12, 54) even through the volume of product dispensed from the other chamber need not be varied and even though the same actuator may be used to effect the dispensing of product.
Patent CA-2267562-A1 (CA)
Title: Systeme et procede servant a augmenter la duree d'une fenetre en saphir dans des environnements presentant des contraintes importantes
Inventor: GOTTLIEB JAMES H
IPC: B64G1/36
Filed: 1998-08-17
Abstract: Ensemble dôme (50) conçu pour être utilisé sur un missile (32) dont l'axe longitudinal (42) est parallèle à un de ses vecteurs de poussée. Ce dôme (50) comprend un pseudo-saphir (30) dont la structure cristallographique comporte des plans n positifs (12), des plans r positifs (14) et un plan c (16). Une surface autour d'un capteur du missile constitue un emplacement servant à monter le pseudo-saphir (30, 50), de sorte qu'un desdits plans r positifs se trouve de face sous le vent par rapport au vent (36) venant frapper ledit missile (32) pendant son vol. La projection d'un des normales du plan r positif sur le vecteur (36) du vent est orientée vers l'arrière. Dans des conditions nominales, un plan r (14) est coupé approximativement par un plan constitué par la normale du plan c (16) et par un vecteur (36) de l'écoulement du vent. Dans le mode de réalisation illustré, l'ensemble dôme (50) comprend un dispositif à rayons X servant à localiser les plans r à l'intérieur du dôme (50) du capteur. Une plaque oscillante (non représentée) oriente le dôme (50) du capteur, de sorte qu'un premier plan r (14) se trouve de face sous le vent par rapport à l'impact de l'air (36) sur le missile. Une normale (38) d'un deuxième plan r constitue un angle d'environ 60 degrés par rapport à l'impact du vent (36). La table oscillante comprend un moteur (non représenté) servant à orienter de façon stratégique le réseau de plans (12, 14, 16) du dôme (50), de manière à optimiser la résistance de ce dernier par rapport aux contraintes exercées.
Patent CA-2270665-A1 (CA)
Inventor: ETIENNE LAURENT
IPC: C12Q1/68
Filed: 1997-11-07
Abstract: The invention relates to a biosensor for the diagnosis of plant diseases, which is suitable for recognising plant diseases, as well as its use in the course of this process, as well as a sensor platform as a component of a biosensor for the diagnosis of plant diseases, whereby the biosensor as an analytical measuring unit consists of the sensor platform according to the invention, which may be modified and on which immobilised biochemical recognition elements are immobilised, whilst in close contact with an appropriate transducer arrangement. The said biochemical recognition elements are structures which are specific for the plant pathogens to be evaluated, and therefore allow individual detection of these plant pathogens to be carried out in the course of the diagnostic process according to the invention.
Patent CA-2273273-A1 (CA)
Title: White ink security feature for mailer type business forms
Inventor: WAGNER DAVID G
IPC: B42D15/00
Filed: 1998-10-19
Abstract: A business form, particularly a mailer type business form, is constructed from a sheet of paper. The paper has first and second areas, the first area having security indicia positively imaged in non-fluorescent white ink. The second area, which is preferably immediately adjacent the first area, is substantially covered by non-fluorescent white ink, with security indicia reverse imaged on it. Some security indicia may extend from the first area to the second area, being positively imaged white ink in the first area, and reverse imaged indicia surrounded by white ink in the second area. The mailer may be formed into panels by lines of weakness, and may have areas with security pantographs thereon, or areas with security printing over a portion thereof and portions distinct from the security printing receiving outgoing address indicia and postage indicia, and possibly return address indicia.
Patent CA-2276546-A1 (CA)
Inventor: MOSCARELLI EDOARDO
IPC: B60J11/00
Filed: 1999-06-29
Abstract: A method of and an apparatus for storing aircrafts, helicopters, tanks and generally armaments and/or parts thereof under controlled atmosphere of inert gases, comprising envelopes for sealingly enclosing the single armament, means for blowing inert gases under a light overpressure into said envelopes, and a means for the remote detection of the pressure in said envelopes in order to actuate said blowing means automatically and at the right time so that the optimum conditions for keeping the inside atmosphere under control are restored. The apparatus can be used everywhere, indoors, on natural ground or paved yards.
Patent CA-2278285-A1 (CA)
Title: Aqueous metallic coating composition and method for forming topcoat
Inventor: SUZUKI KENYA
IPC: C09D133/06
Filed: 1998-01-20
Abstract: A water-base metallic paint composition comprising (A) 100 parts by weight (solid content) of a film-forming water-base acrylic polymer obtained by neutralizing a copolymer having a number-average molecular weight of 2,000 to 200,000 an acid value of 10 to 110 mg KOH/g, and a hydroxyl value of 20 to 100 mg KOH/g, and obtained by copolymerizing (a) 10 to 35 % by weight of styrene, (b) 5 to 25 % by weight of alkyl (meth)acrylate having 6 to 18 carbon atoms, (c) 0.1 to 10 % by weight of a polymerizable unsaturated monomer containing a phosphate group and represented by general formula (I), wherein X represents a hydrogen atom or a methyl group, and m represents an integer from 1 to 3, (d) 2 to 10 % by weight of a polymerizable unsaturated monomer containing a carboxylic group, (e) 5 to 20 % by weight of a polymerizable unsaturated monomer containing a hydroxyl group, and (f) 0 to 77.9 % by weight of another polymerizable unsaturated monomer and (B) 2 to 100 parts by weight of a scaly metallic pigment; and a method of forming an overcoat from the composition.
Patent CA-2278428-A1 (CA)
Title: Marked contact lens bearing optical marking element
Inventor: MARIE ROBERT
IPC: G02C7/04
Filed: 1999-07-23
Abstract: The marked contact lens has at least one microlens optical marking element integrally formed on the surface of the contact lens in a peripheral area thereof. The microlens marking elements are of shallow depth, yet focus light to appear as relatively bright (or dark) marking objects. The marking elements may be spherical or cylindrical microlens formations. The dimensions of the microlenses are chosen so as to avoid any irritation when worn by the user. The marking objects identify the lens source, proper orientation or, in the case of soft lenses, inversion.
Patent CA-2281345-A1 (CA)
Title: Automated in situ testing of railroad telemetry radios
Inventor: GLISTA HANS
IPC: H04B17/00
Filed: 1999-09-03
Abstract: Railroad telemetry radios are tested by an automated method for in situ testing, so that only those units requiring adjustment and maintenance are removed. A multi-function test set is programmed to automate testing of the radios used in a telemetry system in conjunction with other test software embedded in the host telemetry devices. The radios contain both a transmitter and a receiver. Both are individually tested to verify proper performance. Receiver sensitivity testing of the radio is tested by bit error rate (BER) measurement with test software and a dedicated BER modulator. A known low amplitude message comprised of a short pseudorandom pattern continuously repeated by the test set BER modulator is demodulated by the radio receiver. The test software processes the received data and counts the number of errorless messages received over a specific period of time. The receiver sensitivity is known to be acceptable if the number of correct messages received is higher than a predetermined minimum value. The transmitter performance is tested by measuring radio frequency (RF) carrier frequency, modulation frequency, deviation and RF output power. The test set is programmed to automatically measure these parameters, determine whether they meet minimum requirements, prompt the technician as to pass/fail status, and optionally display measured test data for use in radio repair, if required, or for statistical purposes.
Patent CA-2285193-A1 (CA)
Title: Method and apparatus for deploying a well tool into a lateral wellbore
Inventor: BROOKS ROBERT T
IPC: E21B7/08
Filed: 1998-04-03
Abstract: A deployment tool (42) for communicating a well tool from a generally vertical wellbore ( 12) to a lateral wellbore (14) includes a hollow tube (44) having a generally uniform inside diameter. The tube includes at least one flex portion (50) disposed intermediate a first end and a second end of the tube to allow for angular deflection of the second end (48) of the tube with respect to the first end (4b) of the tube. The flex portion also maintains the generally uniform inside diameter of the tube during the angular deflection. The deployment tool also includes a locking device (64) attached to the first end of the tube for releasably securing the first end of the tube at a selected location in the vertical wellbore adjacent to the lateral wellbore. The tube of the deployment tool includes a length selected to allow the second end of the tube to extend into a portion of the lateral wellbore when the first end is releasably secured at the selected location in the vertical wellbore.
Patent CA-2285266-A1 (CA)
Inventor: CRAMPTON SHERI L
IPC: A61K9/22
Filed: 1998-03-06
Abstract: Disclosed is a pharmaceutical composition for extended release of an erythromycin derivative in the gastrointestinal environment. The composition comprises an erythromycin derivative and a pharmaceutically acceptable polymer so that, when ingested orally, the composition induces statistically significantly lower Cmax in the plasma than an immediate release composition of the erythromycin derivative while maintaining bioavailability and minimum concentration substantially equivalent to that of the immediate release composition of the erythromycin derivative upon multiple dosing. The compositions of the invention have an improved taste profile and reduced gastrointestinal side effects as compared to those for the immediate release composition.
Patent CA-2286652-A1 (CA)
Inventor: HEGLUND WILLIAM S
IPC: H02P9/02
Filed: 1998-04-02
Abstract: A method of commutation of a switched reluctance machine to allow operation in a generate mode comprises the steps of closing upper and lower switches coupling a stator winding to a power bus during an increase in the inductance of a stator winding to allow a flow of current from the power bus through the winding, opening one of the upper and lower switches when the current reaches a first predetermined value, opening the closed of the upper and lower switches during a decrease in the inductance of a stator winding, and closing one of the upper and lower switches during a period of non-alignment of the rotor and stator pole. The method further includes the step of closing both the upper and lower switches if the monitored current falls below a second predetermined value. In this way, the current through the stator winding is not allowed to decay to zero.
Patent CA-2286693-A1 (CA)
Title: Combustion chamber system having an improved valve arrangement
Inventor: FEULING JAMES J
IPC: F02B1/04
Filed: 1997-06-10
Abstract: An intake and exhaust system that uses two intake valves (14) and one exhaust valve (16) for each engine combustion chamber (12) spaced around the cylinder centerline in the cylinder head (10). One or more spark plugs (18) or other ignition devices are provided in the head (10) on the cylinder centerline and/or between pairs of adjacent valves. Preferably, the ratio of exhaust valve diameter to intake valve diameter is from about 0.95:1 to 1:1.2. A substantially hemispheric depression may be provided for each valve (14, 16). Squish areas are preferably provided around the periphery of combustion chamber (12).