baber/WOPTO huggingface dataset:
Patent CA-2203537-A1 (CA)
Title: Diagnostic system for fiber grating sensors
Inventor: FALKOWICH KENNETH P
IPC: G01H9/00
Filed: 1994-11-28
Abstract: An optical sensor diagnostic system includes a tunable narrow wavelength-band source (9) which provides a variable wavelength light (44) into an optical fiber (32, 52). Reflective sensors (54, 58), such as Bragg gratings, are disposed along the fiber (52) in the path of tile variable light (44). The sensors (54, 58) transmit light (56, 60) having a minimum transmission wavelength which varies due to a perturbation, such as strain, imposed thereon. A tuner control circuit (42) drives the tunable light source (9) to cause the source light (44) to scan across a predetermined wavelength range to illuminate each sensor at its minimum transmission wavelength. The power of the transmitted light is converted to an electrical signal by a detector (64) and monitored by a signal processor (68) which detects drops in transmitted power level and provides output signals on lines (71) indicative of the perturbation for each sensor. The system may be configured in open loop mode to measure static strains, or closed loop mode to track static strains and measure dynamic strains. Also, the system may be used in a Fabry-Perot configuration to provide a very sensitive strain detection system. Further, the system may be configured in reflection or transmission mode.
Patent CA-2203707-A1 (CA)
Title: Use of slow sand filter with recycle
Inventor: PRINCE DENNIS SCOTT
IPC: B01D24/14
Filed: 1997-04-25
Abstract: A method of use of a slow sand filter system with recycle is disclosed.  The slow sand filter system is located under a body of water and has predetermined maximum vertical flow rate for water through the filter. The method comprises passing water through the slow sand filter system at a rate less than the maximum vertical flow rate, recycling a portion of said water passing through the slow sand filter system back to the body of water and removing the remainder of the water to another location.  The method permits operation of the slow sand filter system to provide a variable supply of water without minimal disruption of the filter system.
Patent CA-2207329-A1 (CA)
Inventor: BLANKERS HENDRIK J
IPC: H05B41/28
Filed: 1996-10-01
Abstract: La présente invention concerne un montage servant au fonctionnement d'une lampe à décharge haute pression, et équipé d'un organe de commutation, d'un élément inductif et d'un redresseur formant ensemble un convertisseur abaisseur de tension relié à des bornes d'entrée pour le branchement à une source d'alimentation et à des bornes de sortie pour le branchement de la lampe et comprenant un dispositif servant à alimenter la lampe en courant pendant toute la commutation périodique de l'organe de commutation, alternativement à l'état conducteur et à l'état non conducteur, au moyen d'un signal de marche et d'un signal d'arrêt. L'élément inductif comprend un enroulement primaire et un enroulement secondaire, ce dernier faisant partie d'un réseau d'intégration pour produire le signal de coupure. Le montage selon l'invention possède en outre un organe de détection d'un courant passant dans le redresseur.
Patent CA-2207821-A1 (CA)
Title: Modifiers for water-setting inorganic compositions and modified water-setting inorganic compositions
Inventor: MAILLET JEROME
IPC: C04B28/02
Filed: 1997-05-30
Abstract: This invention shows a method for improving water-proofing property of water-setting inorganic compositions such as plaster. The modifier is prepared by emulsifying (A) a copolymer of a vinyl monomer and unsaturated dicaboxylic acid (or anhydride) having an acid number of 200 - 400 mg KOH/g (SMA 2000 or 3000) and (B) organopolysiloxane or its derivatives into water by use of alkali compounds, where the ratio of (A) / (B) is in the range from 20/1 to 1/20. The modified water-setting inorganic compositions of claim contain (A) + (B) at 0.01~20 wt-%.
Patent CA-2212516-A1 (CA)
Inventor: RAJEWSKI ROBERT KARL
IPC: F23G7/08
Filed: 1997-08-07
Abstract: A flare stack with increased flow velocity of gases. The flare stack includes a pipe having a flare tip. The flare tip has a top edge. A conical shield having an apical end and a base is secured to and spaced from the flare tip to allow gas to flow between the conical shield and the flare tip. The conical shield is open at the apical end adjacent the top edge of the flare tip. A source of forced gas, preferably air, provides a flow of gas between the conical shield and the flare tip. Preferably, the base of the conical shield is closed.
Patent CA-2216716-A1 (CA)
Title: Power head for cleaning machine
Inventor: MONDIGO JESSE V
IPC: A47L11/40
Filed: 1997-09-29
Abstract: A motorized power head for a machine for cleaning upholstery, carpeting or hard floors includes a spray nozzle for distributing a clean spray solution on a selected area enclosed by the power head.  A cylindrical rotating brush is driven by a two-speed motor housed in the power head to work the solution into the carpet to clean the selected area.  A suction nozzle picks up the spent solution together with loosened dirt and grime.  The power head may be used as a close-up applicator with a handle adjacent the power head, or as a stand-up applicator with an extension inserted between the handle and the power head.  The brush is easily removed for replacement or for converting the apparatus for different applications.
Patent CA-2219315-A1 (CA)
Inventor: R CK ERICH
IPC: A47B88/493
Filed: 1997-02-11
Abstract: Monture de guidage pour extraire un tiroir, comprenant un rail porteur (1) côté corps du meuble, un rail d'extraction (2) côté tiroir, et un rail médian (3) disposé entre les deux rails précités, de chaque côté du tiroir. Entre les rails (1, 2, 3) sont disposés des galets de roulement (34, 38, 39) qui répartissent la charge du tiroir entre les rails (1, 2, 3). Sur au moins un côté du tiroir, un dispositif de verrouillage est logé sur le rail médian (3), dispositif au moyen duquel le rail médian (3) et le rail d'extraction (2) peuvent être accouplés dans la zone arrière de sa course. Un dispositif à renfoncement (10), monté sur le rail porteur (1) s'engage dans la zone arrière de la course, sur le rail médian (3) et déplace ce rail, lorsque le tiroir est repoussé, conjointement avec le rail d'extraction accouplé (2), en position arrière de fin de course. Il est prévu sur le rail médian (3), un galet de commande (4) qui roule sur les traverses de roulement (5, 6) du rail d'extraction (2). Sur le rail porteur (1), il est prévu une position libre mettant le galet de commande (4) hors fonction.
Patent CA-2219741-A1 (CA)
Title: Portable carrier for aerosol containers and method therefor
Inventor: BEGLEY DOUGLAS G
IPC: B65D83/14
Filed: 1997-10-30
Abstract: A portable container carrier for housing aerosol containers and other articles having disposed on one end portion thereof an actuatable or removable cap. The portable carrier includes generally a housing member having a first cover member slidably coupled to a first end portion of the housing member, and a second cover member slidably coupled to a second end portion of the housing member. The covermembers are movable relative to the housing member between an opened position and a closed position, wherein the aerosol container caps are enclosed within the carrier by the cover members in the closed position, and wherein the aerosol container caps protrude through apertures of the cover members in the opened position so that the containers are accessible without having to detachably remove the cover members from the housing member, and the containers are accessible and useable without having to remove the containers from the carrier.
Patent CA-2219918-A1 (CA)
Inventor: HANCOCK MICHAEL THOMAS
IPC: F16D1/08
Filed: 1996-05-30
Abstract: Cette invention concerne un accouplement d'arbres, lequel comprend un arbre (1) ayant une gorge sur sa circonférence (2) près de l'une de ses extrémités, un élément récepteur (3) d'arbre, ainsi qu'un élément de retenue (4) d'arbre à charge élastique, situé dans l'élément récepteur (3) de l'arbre. L'élément de retenue (4) de l'arbre peut effectuer un mouvement de va et vient dans une fente allongée dans le sens ou à l'encontre de la force élastique, de sorte que lors de l'insertion de l'arbre dans l'élément de réception de l'arbre, l'élément de retenue de l'arbre (4) s'enclenche dans la gorge (2) de l'arbre (1). Toute tentative de sortie de l'arbre de l'élément de réception de l'arbre a pour effet d'engager plus fermement l'élément de retenue de l'arbre dans la gorge (2). Dans un autre mode de réalisation, l'élément de retenue de l'arbre peut se présenter sous la forme d'un ressort de torsion (9) monté autour d'un boulon de serrage (4), une extrémité (9A) du ressort pénétrant dans la gorge (2) de l'arbre. L'arbre (1) peut être l'arbre de la colonne de direction d'un véhicule, et l'élément récepteur (3) de l'arbre peut être la fourche d'un joint de cardan.
Patent CA-2220050-A1 (CA)
Title: Method and valve for filling fluid system
Inventor: GRAHAM ROBERT W
IPC: F25B45/00
Filed: 1996-05-09
Abstract: A power steering fluid system (10) having fluid travelling through a fluid path (12) having first (24) and second (26) directions. The system includes a fluid pump (16) positioned to pressurize fluid in the fluid path, a gear box (18) positioned to receive pressurized fluid in the fluid path, a hydraulic boost (20), and a valve assembly (22) for injecting fluid into the fluid path in substantially only the first direction. The valve assembly includes a housing (32) having a fill port (56), a first orifice (40), and a second orifice (42). The valve assembly further includes a valve member (52) positioned within the housing and movable relative to the housing from a closed position, where the fill port is blocked from communication with the first and second orifices and where the first orifice is in communication with the second orifice, to an open position, where the fill port is in communication with the first orifice and where the second orifice is substantially blocked from communication the the first orifice.
Patent CA-2220289-A1 (CA)
Title: Optical transceiver
Inventor: RICHARD JENKIN A
IPC: G11B7/127
Filed: 1996-05-16
Abstract: An apparatus and method are provided for determining the position of a reflective target surface (60) using one or more laser cavities (40, 41). A transmitting laser cavity (40) produces a stable-resonator output beam (42) which is modulated with a compound beam pattern including a first wave of frequency f1 and a second wave of frequency f2. The reflected compound modulated beam enters a receiving laser cavity (41) and fundamental and harmonic waves f1 and f2 are generated in the receiving laser cavity. The power of the compound modulated output beam of the receiving laser cavity is measured by a photodiode (70) and a deconvolution system is connected to the photodiode for filtering the fundamental frequency of f1 and the second harmonic of wave f2. Time-dependent changes in the measured power of the modulated compound output beam are used to derive positional information of the target.
Patent CA-2221237-A1 (CA)
Inventor: VIRTANEN PEKKA
IPC: A23L3/36
Filed: 1996-05-07
Abstract: L'invention concerne un procédé de préparation d'une portion d'aliment cuisiné, ladite portion étant congelée à une température au moins égale à -15 ·C, la sauce étant elle-même congelée à la surface de la portion. Cette sauce est congelée sous la forme d'au moins deux couches différentes à la surface de la portion de sorte qu'une couche liquide sans graisse empêchant l'oxidation constitue la couche extérieure de ladite portion.
Patent CA-2221335-A1 (CA)
Title: Blended polyol ester lubricants for refrigerant heat transfer fluids
Inventor: SCHNUR NICHOLAS E
IPC: C10M105/38
Filed: 1996-06-06
Abstract: An ester blend, including an ester having neopentylglycol and a source of 2-ethylhexanoic acid as its reactive components and an ester having pentaerythritol and a source of 2-ethylhexanoic acid as its reactive components, is especially effective as a lubricant for chlorine-free fluorocarbon refrigerant heat transfer fluids, particularly Refrigerant 134a (1,1,1,2-tetrafluoroethane).
Patent CA-2221651-A1 (CA)
Inventor: SQUILLER EDWARD P
IPC: C08G18/78
Filed: 1997-11-20
Abstract: The present invention relates to polyisocyanate adducts containing allophanate groups, siloxane groups and optionally isocyanurate groups that are prepared by reacting compounds a) which i)   are substantially free of hydroxyl groups and isocyanate groups, ii)  have an average of at least two urethane groups per molecule and iii) contain 0 to 50% by weight of siloxane groups, based on the weight of the polyisocyanate adducts, with an excess quantity, based on the equivalents of urethane groups, of polyisocyanates b), which optionally contain siloxane groups, to form polyisocyanate adducts and optionally removing at least a portion of the unreacted excess polyisocyanates b), provided that compounds a) and polyisocyanates b) contain a total of at least 0.001% by weight, of siloxane groups, based on the weight of the polyisocyanate adducts. The present invention also relates to a process for preparing these polyisocyanates adducts, to blends of the polyisocyanates with other polyisocyanates that which do not contain siloxane groups and to the use of the polyisocyanate adducts or polyisocyanate blends, optionally in blocked form, in one- or two-component coating compositions.
Patent CA-2221661-A1 (CA)
Title: Transaction roll forward
Inventor: ZELSTER RAFAEL
IPC: H04L12/70
Filed: 1997-11-20
Abstract: In a method of monitoring transactions in a network application, a transaction log is maintained at a node, and a separate log is maintained. A playback is implemented which relies on the application to replay the original knowledge context of the transaction, and if this replayed mechanism fails, a transaction rollback mechanism is invoked to restore both the application and the node to a mutually consistent state.
Patent CA-2225589-A1 (CA)
Inventor: PETERSON DAVID
IPC: C11D1/72
Filed: 1997-12-23
Abstract: A cleaning composition for carpets, rugs and the like is provided. The dispensable cleaner includes: a) an effective amount of an organic solvent having a Hansen solubility parameter of less than about 10; b) an effective amount of an emulsifying or dispersing agent; c) an effective amount of a source of hydrogen peroxide; and d) the balance being water. Emulsifying or dispersing agents that are surfactants having an HLB of less than about 10 are particularly suited for removing oily from absorbent or adsorbent surfaces. Optional components include sequestering agents, fragrances, builders and soil retardants.
Patent CA-2226797-A1 (CA)
Inventor: VASUDEVA KAILASH C
IPC: F16D41/18
Filed: 1998-01-13
Abstract: The ratchet mechanism has a body which is secured to the tool's handle, and an output shaft which extends axially from the distal end of the body. The output shaft has a splined portion which is secured rotatably within a generally cylindrical axial cavity in the distal end of the body. Two pins are mounted to project through the body of the mechanism, on a rocker for example. Depending on the position of the rocker, one or the other or both of the pins extend(s) into the splines. The pins are configured such that one permits rotation of the splined portion in one direction and prevents rotation in the opposite direction, and the other pin permits rotation in the opposite direction and prevents rotation in the first direction. There are thus three operating positions, namely "left", "right" and "locked".
Patent CA-2227367-A1 (CA)
Title: Monitoring of a packet telephony device via a control device
Inventor: POLYZOIS CHRISTOS
IPC: H04M3/22
Filed: 1998-01-19
Abstract: A control device attached to both a primary packet device (such as a PC-based packet phone) and a network (e.g., telephone network or packet network) provides improved reliability for packet telephony and network maintenance.  The control device may have its own network address separate from that of the packet telephony device.  The control device enables monitoring of the operation of the packet telephony device and basic maintenance, such as re-booting of that device if it is no longer responding to input commands.
Patent CA-2228345-A1 (CA)
Title: Bicycle trailer hitch
Inventor: BEAUDOIN MAURICE
IPC: B62K27/12
Filed: 1998-02-26
Abstract: A bicycle trailer hitch is disclosed, for attaching a forward arm of a bicycle trailer to a rear frame of a bicycle.      The bicycle trailer hitch comprises a base mounting plate having two discs provided with grooves to position respectively the chain stay and the seat stay of a bicycle rear frame. A side plate covers and squeezes the chain stay and the seat stay against the base mounting plate under the action of tightening means which comprise a releasable-adjustable fastener coupled between the base mounting plate and the side plate. The base mounting elate is provided with flexible connecting means to link the forward arm of the trailer. The bicycle trailer hitch is easy and quick to install and release, and allows a firm and secure attachment.
Patent CA-2230162-A1 (CA)
Title: Phase locked loop circuit
Inventor: KOBAYASHI TOSHIAKI
IPC: H03L7/093
Filed: 1998-02-23
Abstract: A phase locked loop circuit includes a phase comparator, a temperature information output section, an arithmetic processing circuit, and a voltage controlled oscillator.  The phase comparator compares the phase of an input signal with that of a frequency division signal obtained by frequency-dividing an output frequency signal.  The frequency division signal has the same frequency as that of the input signal.  The temperature information output section outputs temperature information based on an ambient temperature.  The arithmetic processing circuit performs arithmetic processing by using the temperature information from the temperature information output section and an output from the phase comparator, and outputs the arithmetic processing result as a voltage control signal.          The voltage controlled oscillator outputs an output frequency signal in accordance with the voltage control signal from the arithmetic processing section.
Patent CA-2231933-A1 (CA)
Title: Inverseur de poussee de turboreacteur a portes a structure externe plaquee
Inventor: GONIDEC PATRICK
IPC: B64D33/00
Filed: 1998-03-11
Abstract: Un inverseur de poussée de turboréacteur à double flux comporte des portes pivotantes (7) intégrées en jet direct dans la paroi extérieure du conduit (15) du flux de soufflante et constituant des obstacles de déviation après pivotement en procurant une inversion de poussée. Une porte (7) est constituée d'un panneau (23) formant la structure externe et d'une structure interne (22) qui sont mécaniquement dissociées et reliées par une jonction formée d'au moins une liaison élastique (25,26).
Patent CA-2232654-A1 (CA)
Inventor: TAICHER GERSH ZVI
IPC: G01V3/32
Filed: 1998-03-18
Abstract: A nuclear magnetic resonance well logging apparatus including a magnet for inducing a static magnetic field in a substantially cylindrically shaped sector located in earth formations penetrated by a wellbore. The sector subtends an angle of about 60 degrees. The sector is located only on one side of the wellbore and has a longitudinal axis substantially parallel to the wellbore. The apparatus also includes a transmitter for generating a radio frequency magnetic field in the sector for exciting nuclei.  The radio frequency magnetic field and the static magnetic field substantially satisfy nuclear magnetic resonance excitation conditions substantially exclusively within the sector. The apparatus includes a receiver for detecting nuclear magnetic resonance signals from the excited nuclei. In one embodiment of the invention, the static magnetic field has a longer dimension along the longitudinal axis than the active length of the transmitter, and the active length of the transmitter is greater than the active length of the receiver so that only fully polarized nuclei are excited by the radio frequency magnetic field and NMR signals are detected only from fully radio frequency-excited nuclei.
Patent CA-2233737-A1 (CA)
Title: Flatbed trailer enclosure
Inventor: SCHOUTEN BEN H
IPC: B60J7/08
Filed: 1998-03-31
Abstract: A flatbed trailer enclosure comprising an upright frame member having a lower portion adapted for securing to a top surface of a flatbed trailer, and a pair of side frame members pivotally mounted to the upright frame member. A pair of actuators are provided for rotating the side frame members, one being directly coupled to a drive shaft, and the other having a reversing gear coupled to the drive shaft. Each actuator has an output shaft coupled to a respective side frame member.
Patent CA-2235955-A1 (CA)
Inventor: MURGIDA MATTHEW F
IPC: A61K8/895
Filed: 1997-07-24
Abstract: The present invention is directed to a composition comprising an antiperspirant salt suspended in a carrier vehicle thickened with a silicone latex. The composition typically comprises about 50 to 90 % carrier vehicle, which is advantageously substantially comprised of a volatile silicone, about 3 to 30 % antiperspirant salt, which is typically an aluminum chlorohydrate or aluminum-zirconium chlorohydrate, and about 3-25 % silicone latex. Preferably the composition will contain an auxiliary thickening agent such as a fumed silica, hydrated silica or trihydroxystearin, typically in an amount of 0.01 to 10 %. The composition will preferably have a viscosity of about 12,000 to 20,000,000 cP. The present invention also embraces an apparatus for delivering the above-described composition when formulated with a medium viscosity of about 12,000 to 50,000 cP, said apparatus having a porous dome with a porosity of about 150µm to 400µm through which the composition is delivered.
Patent CA-2236102-A1 (CA)
Title: Arrangement and method relating to telecommunications networks
Inventor: HASTER LARS-OLOF
IPC: H04M3/00
Filed: 1996-10-23
Abstract: The present invention relates to an arrangement and a method for providing access between a number of user stations connected by radio via a number of radio base stations (RFP) and a switching arrangement (LE) of a telecommunications network. At least one access network (AN) is provided and it connects to the switching arrangement (LE) over at least one interface. A radio access network (DRAN) comprising a number of base stations (RFP) is provided which also comprises the access network (AN). An address field of the addressing mechanism of the existing interface (V5.1) between the access network (AN) and the switching arrangement (LE) is so structured that it comprises a first part for addressing base stations (RFP) and a second part for addressing/identifying selected bearer channel on the existing interface (V5.1).
Patent CA-2236245-A1 (CA)
Inventor: HANELT ECKHARD
IPC: G02B5/30
Filed: 1998-04-29
Abstract: The invention relates to a process for the preparation of three-dimensionally crosslinked polymeric materials having a broad cholesteric reflection band, which comprises bringing polymeric materials having cholesteric properties and an extractable material content into contact with a solvent or solvent mixture.