baber/WOPTO huggingface dataset:
Patent CA-2245947-A1 (CA)
Inventor: BAKKE STIG
IPC: E21B23/04
Filed: 1997-02-05
Abstract: Hydraulically releasable coupling (1) of the kind arranged to releasably connect a tool to a coiled tube, and which coupling (1) is provided with two or more hydraulic channels (12, 14) and (13, 15), arranged to convey hydraulic fluid from hydraulic lines, arranged in the coiled tube, to the tool; and in which the coupling (1) is held in coupled position by a locking device (4) which is secured by means of an axially displaceable sleeve (6), which again is fixed in locking position by shear pins (11). The sleeve (6) is arranged to work as a sleeve-shaped hydraulic piston, the sleeve (6) being provided with annular seals (7, 8, 9) of different seal diameters, whereby the seals (7, 8, 9) define annular areas, each assigned to a hydraulic channel (12, 14) and (13, 15). The sleeve (6) is subjected to an axially acting force equalling the sum of the products of the pressure in each of the hydraulic channels and the thereto assigned annular area. The shear pins (11) are arranged to break, whenever both annular areas are subjected to hydraulic working pressure.
Patent CA-2246661-A1 (CA)
Title: Novel daylight lamp
Inventor: MCGUIRE KEVIN P
IPC: F21V14/04
Filed: 1997-02-25
Abstract: A lamp (600) for producing a spectral light distribution which is substantially identical in uniformity to the spectral light distribution of a desired daylight throughout the entire visible light spectrum from about 380 to about 780 nanometers. The lamp (600) contains a lamp envelope (604) comprised of an exterior surface, a light-producing element (602) substantially centrally disposed within said lamp envelope (604), and a coating (620) on said exterior surface of said lamp envelope (604).
Patent CA-2247602-A1 (CA)
Inventor: LETTS JOHN B
IPC: E04D3/35
Filed: 1998-09-14
Abstract: A composite recovery board (10) comprises a foam core (11) selected from the group consisting of polyisocyanurate and polyurethane materials and mixtures thereof; a facer (15), applied to one major surface (13) of the foam core and comprising a sheet selected from the group consisting of polymer materials, reinforced polymer materials, cellulosic materials, paper, aluminum foil and trilaminates thereof, wherein the reinforced polymer material and the cellulosicmaterial are reinforced with a material selected from the group consisting of glass strands, glass fibers, and mixtures thereof; and, gypsum board (14), applied to the opposite major surface (12) of the foam core. A method of reroofing a roof comprises applying composite recovery  boards of the present invention to a roofdeck; and, applying a weather protective layer over the recovery boards. A continuous method of making a composite recovery board comprises feeding gypsum board (14) into a laminator assembly (21); depositing a foamable polymer liquid (36) onto the gypsum board; feeding a facer material (15) into the laminator assembly above the foamable polymer liquid; allowing the polymer liquid to rise between the gypsum board and facer material forming polymer foam of a predetermined thickness; curing the polymer foam under heat (44) to create the composite board; and cutting the composite board to desired lengths.
Patent CA-2247638-A1 (CA)
Inventor: HELWIG GREGORY S
IPC: D04H1/70
Filed: 1997-03-19
Abstract: La présente invention se rapporte à un mat de fibres non tissé convenant au renforcement de revêtements de sol élastiques en nappe, du type revêtements de sol en vinyle. Ce mat de fibres non tissé prend la forme d'une nappe de fibres de renforcement (14) qui comporte au minimum des fibres (18) à demi spiralées et des fibres légèrement courbes (20). Il est souhaitable que la plupart des fibres de renforcement (14), sinon toutes, soient constituées de verre. Cependant, il peut être également souhaitable que les fibres de renforcement (14) comportent des fibres de verre et des fibres synthétiques. Il serait même possible que les fibres de renforcement (14) ne comprennent que des fibres autres que des fibres de verre. On utilise au moins un liant polymère pour lier entre elles les fibres de renforcement (14) de façon à faire du mat de fibres un substrat approprié au renforcement des revêtements de sol élastiques en nappe, tel qu'une couche intermédiaire pour revêtements de sol en vinyle. L'utilisation d'un mat de fibres non tissé contenant des fibres de renforcement (14) qui ne sont pas entièrement droites et peuvent s'interpénétrer les unes les autres, permet d'améliorer la compressibilité en structure plane d'un revêtement de sol élastique en nappe comportant un tel mat.
Patent CA-2247699-A1 (CA)
Inventor: GEE DAVID MARTIN
IPC: H05B44/00
Filed: 1998-09-22
Abstract: The present invention relates to a circuit for driving a solid state optical emitter device such as a laser diode, and in particular a circuit which limits the maximum current which may be drawn through the device. The circuit comprises a current supply path and a current return path to which the optical emitter may be connected, and current limit means (20) to limit a maximum current (Imax) that may flow through one of the current paths. The current limit means (20) has a current mirror with an input portion (21) and an output portion (23), the circuit being arranged so that when a first current (I R) flows through the input portion (21) the second portion (23) is predisposed to supply a second current (I O) up to a maximum which mirrors the first current (I R). The maximum current (Imax) through the paths is thereby limited in accordance with the maximum of the second current (I O).
Patent CA-2247814-A1 (CA)
Inventor: BANTICK JOHN
IPC: A61K31/4353
Filed: 1997-03-20
Abstract: Dérivés de 2-arylpyrazolisoquinoline et de cinnolinone, procédés de préparation de ces dérivés, leur utilisation comme médicament et formulations pharmaceutiques renfermant ces dérivés.
Patent CA-2250758-A1 (CA)
Title: Priority call on busy
Inventor: BEGEJA LEE
IPC: H04Q3/66
Filed: 1998-10-20
Abstract: A method and a system for setting a priority level of a call in which a request is received for changing a priority level of a call to one of a plurality of available call priority levels, the priority level of the call is changed based on the received request, and the call is handled based on the changed priority level of the call. The request for changing the priority level of the call can be a request for a central office service feature for changing the priority of the call, receipt a call routed to a predetermined telephone number, such as an 800, an 888, a 900 or a charge-to-caller number, or receipt of a DTMF signal indicating the requested priority level. A message can be generated providing a menu for changing the priority level of the call having at least one available priority level with an associated charge rate for each available priority level. When the priority level of the call is changed, the call can be advanced in a call holding queue, a lower priority call can be interrupted or the call can be routed on a high-priority trunk capacity available for highpriority calls.
Patent CA-2250948-A1 (CA)
Title: Inferential measurement of photoelectric absorption cross-section of geologic formations from neutron-induced, gamma-ray spectroscopy
Inventor: ODOM RICHARD CHARLES
IPC: G01V5/10
Filed: 1998-10-20
Abstract: A method for inferring the photoelectric absorption of a formation by directly mapping spectroscopic measurements of gamma rays induced in the formation using a fast neutron source. The mapping is accomplished by creating a polynomial function based on counts of gamma-ray events in the gamma-ray energy spectrum; the coefficients of the polynomial function are determined in known calibration environments, and the value of the polynomial is the inferred photoelectric absorption parameter. The spectroscopic measurements are preferably generated by sorting gamma-ray counts of the gamma-ray spectrum into a plurality of energy-dependent channels, and measuring these gamma-ray energy distributions during different portions of the firing cycle where different types of dominant gamma-ray production reactions occur.
Patent CA-2252301-A1 (CA)
Inventor: ADINOLFE ROSE
IPC: C07C53/50
Filed: 1998-10-30
Abstract: In a method of making an acid chloride having the general formula (see fig. I) where each R contains no unsaturated groups and is preferably independently selected from aliphatic from C1 to C7 and aryl from C6 to C15, a solution is formed in an inert solvent of an aldehyde having the general formula (see fig. II) and chlorine gas is sparged into said solution. The reaction between the aldehyde and the chlorine gas to produce the acid chloride is performed in the absence of a catalyst, in the absence of an initiator, and in the absence of ultraviolet light. A chlorinated acid chloride can be prepared from the acid chloride by reacting it with additional chlorine in the presence of a chlorine free radical generator.
Patent CA-2254977-A1 (CA)
Title: Parametric control in pulsed light sterilization of packages and their contents
Inventor: LIERMAN JAMES C
IPC: B65B55/02
Filed: 1997-05-09
Abstract: An approach for sterilizing microorganisms at a target object employs a flashlamp system including means for generating pulses of light, and for deactivating microorganisms within the target object by illuminating the target object with the pulses of light having been generated; a photo-sensitive detector positioned so as to receive a portion of each of the pulses of light as a measure of an amount of light illuminating the target object, for generating an output signal in response thereto; and a control system, coupled to the flashlamp system and the photo-sensitive detector, for determining, in response to the output signal, whether the pulses of light are sufficient to effect a prescribed level of deactivation of microorganisms in the target object. In accordance with this approach sterilizing microorganisms involves steps of generating a pulse of light; deactivating microorganisms at the target object by directing the pulse of light having been generated at the target object; receiving a portion of the pulse of light as a measure of an amount of the pulse of light illuminating the target object; generating an output signal in response to the receiving of the portion of the pulse of light; and determining, in response to the generating of the output signal, whether the pulse of light is sufficient to effect a prescribed level of deactivation of microorganisms in the target object.
Patent CA-2257059-A1 (CA)
Inventor: PICIACCIA STEFANO
IPC: H04B10/297
Filed: 1998-12-30
Abstract: An optical fiber amplifier and filtering apparatus and method for a bidirectional wavelength-division-multiplexing (WDM) system having odd and even interleaved channels is disclosed. The apparatus uses optical circulators, in-fiber Bragg gratings, and erbium-doped fiber amplifiers to amplify channels traveling in opposite directions in a WDM system and to filter unwanted ASE and back reflection noise between the channels. Interface circulators positioned at opposite ends of the apparatus respectively receive odd and even channels traveling in opposite directions in the WDM system and pass the channels through an erbium-doped fiberamplifier. Other circulators direct the amplified channels to two series of Bragg gratings that respectively reflect only the odd channels and pass only the even channels or vice versa, thereby filtering ASE and other noise located between the channels. An additional amplifier may boost the channels before they exit the apparatus via the interface circulators.
Patent CA-2257125-A1 (CA)
Title: Polyolefin films having increased gas permeability and method for making
Inventor: BRANT PATRICK
IPC: C08J5/18
Filed: 1997-07-24
Abstract: Films, made of polyethylenes, and articles made therefrom exhibit, for a given density, improved oxygen transmission. The polyethylenes are produced in a metallocene-catalyzed production process. The films may be made by a cast film process, and may be made under conditions that raise the birefringence and the oxygen transmission rate of the film, such as increasing strain rate decreasing melt temperature, increasing quench rates, or may be post-extrusion treated, for instance annealed or cold drawn. Combinations of both extrusion techniques and post-extrusion techniques may also be used. Polyethylenes utilized for making such films typically have a Composition Distribution Breadth Index above 50 %, a Mw/Mn below 3, and a Mz/Mw below 2. The permeability of the films so made will be 50 % or more above the permeability of the films based on similar resins based on previously used film formation techniques.
Patent CA-2258827-A1 (CA)
Title: Method and system for half-duplex wireless communication
Inventor: WOO THOMAS YAT CHUNG
IPC: H04B7/26
Filed: 1999-01-05
Abstract: The present invention is a method and system of half-duplex wireless communication where a premises has a base station that services a defined communication cell. The base station transmits and receives Request to Send and Clear to Send announcements to and from mobile stations to indicate that the base station can send and receive data. A plurality of mobile stations send and receive data after transmitting and receiving Clear to Send and Request to Send announcements to and from the base station based on the respective time period in which the base station has received the Clear to Send and Request to Send announcements from respective mobile stations.
Patent CA-2258958-A1 (CA)
Title: Internally cooled glass gob deflector
Inventor: WOOLDRIDGE LARRY J
IPC: C03B7/16
Filed: 1999-01-14
Abstract: A deflector assembly for conveying gobs of molten glass to a glass forming machine, the deflector assembly having a longitudinally extending deflector formed from a suitable metallic material by casting with a cross-sectional configuration of a downwardly facing U. The deflector has a cooling passage formed internally of the metallic material and extending therethrough, the cooling passage being formed along the centerline of the deflector and adjacent to a bight of the U. The deflector assembly further comprises a thin-walled tube inserted into the cooling passage of the deflector, the thin-walled tube extending through the deflector, and a coolant is circulated through the thin-walled tube to thereby cool the deflector.
Patent CA-2259649-A1 (CA)
Title: Dual dispensing valve assembly
Inventor: ATKINSON GORDON E
IPC: B05B11/00
Filed: 1997-06-27
Abstract: A dual valve assembly (26) for use with a dispensing apparatus including a pump (18) and a plurality of fluid containers (12, 14). The valve assembly (26) includes a housing containing an elastomeric regulator (36) wherein the regulator (36) includes a diaphragm portion (56) for controlling fluid flow through the housing, and a vent valve structure for opening and closing air passages (100, 102) to supply air to the containers (12, 14). The diaphragm portion (56) includes an orifice (68), and the diaphragm portion (56) is movable into and out of contact with a seat (62) defined on the housing to control fluid flow from the containers and through the orifice during actuation of the pump (18). In addition, the vent value structure includes a pair of vent membranes (108, 110) which open vent openings (100, 102) to the containers (12, 14) in response to negative pressure applied from the pump (18).
Patent CA-2263466-A1 (CA)
Inventor: GOLDSBERRY FRED L
IPC: G01V1/44
Filed: 1997-08-05
Abstract: A method of producing images of the limits of a geologic reservoir from measurements of fluid pressure in a well controlled to produce from the reservoir at a constant flow rate. The measurements are taken over a period of time, which includes initiation of well flow and recorded in a plot of well pressure v. time. The method includes detecting abrupt changes in slope of the pressure v. time function, where each abrupt change signifies the arrival of a primary shock wave at a discrete section of a boundary limit of the reservoir;  and calculating the minimum radial distance to the discrete section from the well bore as a function of wave travel time. The changes in the slope of the pressure v. time function are used to calculate the curvature of the boundary at the minimum radial distance. The angular disposition of each discrete section or reservoir limit is then adjusted about the origin and adjustably re-positioned on its point of contact with its associated distance radial limits to provide with the other discrete sections a simulation of the reservoir boundary. Observations from multiple wells reduce any ambiguity in the interpretation.
Patent CA-2268899-A1 (CA)
Title: Method of controlled blasting
Inventor: BRENT GEOFFREY FREDERICK
IPC: F42D1/00
Filed: 1997-10-13
Abstract: The invention of the present application provides a method of controlled blasting comprising dispersing an explosive within a blasthole to form a dispersed explosive having a lower average bulk density than said explosive prior to dispersion and detonating said dispersed explosive. Typically the explosive is dispersed in air, however the explosive may be dispersed in other matrices such as other gases or liquids or in gases comprising particulate matter. The explosive may be dispersed using a number of different techniques such as, using a discharge of pressurised fluid or by detonation of a small propellant charge or by falling under gravity in the blasthole. The invention of the present application is particularly useful where a reduced concentration of explosive energy is required such as in perimeter control, presplitting or soft rock conditions, can be controlled by a method which involves dispersing the explosives composition within a blasthole prior to initiating the blast. The dispersion of the explosive composition within a blasthole provides an in situ low density explosives composition.
Patent CA-2270891-A1 (CA)
Title: Presentoir promotionnel pour bouteilles
Inventor: HWANG PHILIP C
IPC: A47F7/28
Filed: 1997-11-07
Abstract: Cette invention se rapporte à un dispositif distributeur d'articles à alimentation par gravité, qui comprend au moins une glissière en plastique (30) capable de soutenir en tandem une rangée de bouteilles similaires (B) du type comportant une collerette annulaire (R) sur leurs goulots, ce dispositif distributeur comprenant en outre un panier de support (60) pour la bouteille de tête qui est suspendu à l'extrémité avant de la glissière et qui est amovible et interchangeable avec d'autres supports pour bouteille de tête, afin qu'on puisse y loger des bouteilles de différentes hauteurs. Les rails (30) de la glissière comportent à l'extrémité avant de la glissière une section de transition en pente (46a, 46b), qui rend plus aisé le mouvement des bouteilles hors de la glissière (30) et dans le panier (60) et facilite le chargement par l'avant des bouteilles dans la glissière.
Patent CA-2271404-A1 (CA)
Title: Smokeless glass pipe and method of construction
Inventor: DANFORTH LEWIS J
IPC: A24F1/28
Filed: 1999-05-10
Abstract: A device for smoking combustible materials includes a tubular body member constructed entirely of heat-resistant glass material. The device has an internal bore with an integrally formed venturi that separates the bore into a smoke chamber and a loading chamber. A method of forming the device includes providing a tubular body member constructed entirely from a heat-resistant glass material; forming a constricted passage in a bore of the tubular body member by applying heat to a predetermined location on the tubular body member until the glass material expands into the bore at the predetermined location; and smoothing the outer surface of the tubular body member at the predetermined location.
Patent CA-2274066-A1 (CA)
Title: Vascular wound closure system
Inventor: KIRSCH WOLFF M
IPC: A61B17/00
Filed: 1997-12-05
Abstract: A system which facilitates the closure of puncture wounds in the vasculature of a patient by helping locate and isolate the site of the puncture wound in the patient. A tube or catheter having an indicator hole for aspirating blood assists in locating the exact site of the wound. A retractor moves the surrounding tissue laterally forming an access path to the wound, and acts as a guide for the wound closure device. The retractor and accessories are preferably used in combination with a surgical clip applicator which delivers clips to the site of the wound, but can also be used with other methods of wound closure such as suturing and stapling.
Patent CA-2275611-A1 (CA)
Title: Substituted pyrazole-3-yl benzazoles
Inventor: MENKE OLAF
IPC: C07D417/04
Filed: 1997-12-01
Abstract: The invention concerns substituted pyrazole-3-yl benzazoles of formula (I) and salts thereof, in the formula R1 designating H, C1-C4 alkyl, C1-C4 alkyl halide; R2 designating CN, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, C1-C4-haloalkylthio, C1-C4-alkylsulphinyl, C1-C4-haloalkylsulphinyl, C1-C4-alkylsulphonyl, C1-C4-haloalkylsulphonyl; R3 = H, CN, NO2, halogen, C1-C4-alkyl, C1-C4-haloalkyl; R4 designating H, halogen; R5 designating H, CN, halogen, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy or C1C4-haloalkoxy; Z designating -N=C(XR6)-O- or -N=C(XR6)-S-, bonded to .alpha. by the nitrogen, oxygen or sulphur; X designating a chemical bond, oxygen, sulphur, -S(O)-, -SO2-, -NH- or -N(R7); R6, R7 designating C1-C6-alkyl, C1-C6-haloalkyl, cyano-C1-C4-alkyl, hydroxy-C1-C4-alkyl, C3-C6-alkenyl, cyano-C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkinyl, cyano-C3-C6-alkinyl, C3-C6-haloalkinyl, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-haloalkoxy-C1-C4-alkyl, C3-C4-alkenyloxy-C1-C4-alkyl, C3-C4-alkinyloxy-C1-C4-alkyl, C3-C8-cycloalkyloxy-C1-C4-alkyl, amino-C1-C4-alkyl, C1-C4-alkylamino-C1-C4-alkyl, di(C1-C4-alkyl)amino-C1-C4-alkyl, C1-C4-alkylthio-C1-C4-alkyl, C1-C4-haloalkylthio-C1-C4-alkyl, C3-C4-alkenylthio- C1-C4-alkyl, C3-C4-alkinylthio-C1-C4-alkyl, C1-C4-alkyl-sulphinyl-C1-C4-alkyl, C1-C4-haloalkylsulphinyl-C1-C4-alkyl, C3-C4-alkenylsulphinyl-C1-C4-alkyl, C3-C4-alkinylsulphinyl-C1-C4-alkyl, C1-C4-alkylsulphonyl-C1-C4-alkyl, C1-C4-haloalkylsulphonyl-C1-C4-alkyl, C3-C4-alkenylsulphonyl-C1-C4-alkyl, C3-C4-alkinylsulphonyl-C1-C4-alkyl, hydroxycarbonyl-C1-C4-alkyl, C1-C4-alkoxycarbonyl-C1-C4-alkyl, which can carry a CN oder C1-C4-alkoxycarbonyl group, C1-C4-alkylthiocarbonyl-C1-C4-alkyl, aminocarbonyl-C1-C4-alkyl, C1-C4-alkylaminocarbonyl-C1-C4-alkyl, di(C1-C4-alkyl)aminocarbonyl-C1-C4-alkyl, di(C1-C4-alkyl)-phosphonyl-C1-C4-alkyl, C1-C4-alkoxyimino-C1-C4-alkyl, C3-C4-alkenyloxyimino-C1-C4-alkyl, optionally substituted C3-C8-cycloalkyl, C3-C8-cycloalkyl-C1-C4-alkyl, phenyl, phenyl-C1-C4-alkyl, 3- to 7-member heterocyclic or heterocyclyl-C1-C4-alkyl, wherein each cycloalkyl ring and each heterocyclyl ring contain a CO or CS ring member; if X is a chemical bond, -O-, -S-, -NH- or -N(R7)-, R6 also being C1C4 alkylcarbonyl, C1-C4 haloalkylcarbonyl, C1-C4 alkoxycarbonyl, C1-C4 alkylsulphonyl or C1-C4 haloalkylsulphonyl; if X is a chemical bond, R6 additionally designating CN, SH, NH2, halogen, -CH2-CH(halogen)-R8, -CH=CH-R8 or -CH=C(halogen)-R8, R8 designating COOH, C1-C4 alkoxycarbonyl, C1-C4 alkylthiocarbonyl, CONH2, C1-C4 alkylaminocarbonyl, di(C1-C4 alkyl)aminocarbonyl or di(C1-C4 alkyl)phosphonyl; or R6 plus R7 designating an optionally substituted 1,3-propylene, tetramethylene, pentamethylene or ethylene oxyethylene chain. The invention alsoEncerns the use of these substances as herbicides and for the desiccation and/or defoliation of plants.
Patent CA-2276246-A1 (CA)
Inventor: OW SAY KYOUN
IPC: D21B1/14
Filed: 1999-06-25
Abstract: The present invention relates to a method for recycling of old corrugated container (OCC) using flotation and kneading treatment and more particularly, to a method for recycling of OCC, wherein OCC is treated withflotation and kneading treatment, and thereby removing fines and ink spot in the waste pulp and improving the strength and drainage property. As a result, it can be recycled similar to the expensive virgin unbleached kraft pulp.