baber/WOPTO huggingface dataset:
Patent CA-2100716-A1 (CA)
Title: Detonation arrestor with cooling section and quenching section, and method of cooling and quenching a flame front travelling in a line carrying flammable gas
Inventor: RAJEWSKI ROBERT K
IPC: F21L17/00
Filed: 1993-07-16
Abstract: DETONATION ARRESTOR WITH COOLING SECTION AND QUENCHING  SECTION, AND METHOD OF COOLING AND QUENCHING A FLAME  FRONT TRAVELLING IN A LINE CARRYING FLAMMABLE GAS     ROBERT KARL RAJEWSKI            ABSTRACT  A detonation arrestor for a line carrying a combustible gas includes a cell housing having a portion that is directed to quenching a detonation front and a portion that is directed primarily to heat absorption so that the heat of a continuous or prolonged burn can be withstood.  The  quenching  portion  may  be  a  porous quenching medium. The heat absorption section contains a large mass of metal with porous channels through or between them. An example is a plurality of closely spaced stacked plates, which may be helically wound or plane parallel plates.  Crimped ribbon or other spacers may separate them. As an alternative to the quenching medium, the plates may extend long enough to allow flame fronts to be quenched between them. The detonation arrestor is symmetrical and may be placed in the flare line in either direction. If particulate quenching medium is used, a deflector ring encircles the interior of the cell housing and prevents flame fronts from flashing along the edge of the cell housing.
Patent CA-2102174-A1 (CA)
Title: Clip on Fastener
Inventor: RATTMANN HANS R
IPC: F16B37/04
Filed: 1993-11-01
Abstract: A clip on fastener (100) is provided that features a pair of spaced apart legs (2) and (6) extending from a closed end (9) to an open end (10) of fastener(100). Leg (6) includes a pair of resilient arms (16 and 18) that extend away from the side of the leg (6) facing away from leg (2) and end in overhanging relationship to an opening (7) through arm (16). Arm (18) extends towards closed end (9) and includes a guide tab (20) that extends angularly away from leg (2) towards open end (10). Tab (20) is operative to initiate separation of legs (2 and 6) to enhance receipt of an edge of a panel or plate (P) into open end (10).
Patent CA-2103937-A1 (CA)
Title: Method and apparatus for fusion splicing optical fibers
Inventor: SUZUKI ISAO
IPC: G02B6/255
Filed: 1993-08-12
Abstract: Abstract of the Disclosure A method of fusion splicing optical fibers.   Cores of the optical fibers to be fusion spliced are arranged in such a manner that the ends of the corresponding cores of optical fibers opposingly face to each other between discharge electrodes for fusion splicing.  Discharge current flowing between the discharge electrodes is automatically adjusted  according to a number of the cores of the optical fibers to substantially provide an optimal correction to the discharge current in relation to the number of the cores of the optical fibers.  The discharge current is further adjusted to a variation in atmospheric pressure to substantially provide an optimal correction to the discharge current in relation to the variation in atmospheric pressure.
Patent CA-2106434-A1 (CA)
Title: Eye protection for welding
Inventor: BENNETT JONATHAN R
IPC: A61F9/06
Filed: 1993-09-17
Abstract: WELDING HELMET EFFICIENCY IMPROVEMENT DEVICE        ABSTRACT   Disclosed herein is a kit for improving a welding helmet of the type having face protecting shroud. The shroud having an aperture, a first filter plate sized to fit in and be secured to the aperture, the kit comprising a second filter plate, attachment means for removably attaching the second filter plate to the first filter plate, the second filter plate being relatively smaller than the first filter plate, so that together, the filter plates provide a pair of adjacent viewing ares, the first of which enables a welding operator to view a workpiece during a welding operation while protecting the welding operator's eyes from harmful rays of light, and the second of which enables a welding operator to view the workpiece following a welding operation without having to remove the shroud.
Patent CA-2106812-A1 (CA)
Inventor: BINZER LOTHAR
IPC: F24B1/18
Filed: 1993-09-23
Abstract: A fireplace insert far a fireplace cavity that includes a venting passage comprising an enclosure dimensioned to be insertable within the fireplace cavity and fill substantially the entire cavity to define a combustion chamber. A passage and an aperture are provided for communicating the combustion chamber with the venting passage. There is a connection system for quickly and efficiently connecting the enclosure to the venting passage while the enclosure is within the fireplace cavity. The ability to connect the insert to the existing venting passage while in place permits the full fireplace cavity to be used. Previous inserts of this type were substantially smaller since there had to be room to manoeuvre and attach the vent by physically reaching into the fireplace cavity.
Patent CA-2109363-A1 (CA)
Inventor: ITOH HIROSHI
IPC: G05B19/19
Filed: 1993-10-27
Abstract: High-speed, high-precision course control can be performed without increasing the loop gain of each control system.  A target value for moving a controlled object as a reality axis by a desired amount is produced.  A virtual target value for moving a virtual controlled object as a virtual axis based on the reality axis is also produced.  A control input and a virtual control input which optimize a predetermined first evaluation function are calculated upon reception of the produced virtual target value, the produced target value, a virtual state amount from the virtual controlled object, a state amount from the controlled object, a first disturbance signal with respect to the virtual controlled object, and a second disturbance signal with respect to the controlled object.  The calculated control input and the calculated virtual control input are input to the virtual controlled object and the controlled object, respectively.
Patent CA-2109853-A1 (CA)
Title: Polyether-substituted imide compounds and their use
Inventor: POHMER KLAUS
IPC: C09K23/42
Filed: 1993-11-24
Abstract: Polyether-substituted imide compounds and their use Abstract The present invention relates to novel polyether-substituted compounds of imides and their use as surface-active agents.
Patent CA-2110352-A1 (CA)
Title: Calling Terminal Controlled Call Coverage
Inventor: BALES BRUCE MERRIL
IPC: H04Q3/62
Filed: 1993-11-30
Abstract: A system that allows a calling party to quickly select a call coverage system to be utilized if a call is unanswered. The calling party can preselect the call coverage before the call is placed, and the called telephone terminal automatically transfers the call to the selected call coverage service if the called party does not answer. Alternatively, the called telephone terminal transmits back the available call coverage options if the incoming call is not answered. In response, the calling telephone terminal displays the available call coverage options to the caller, and the caller selects the call coverage option desired. The calling telephone terminal then transmits the selected call coverage option to the called telephone terminal which transfers the call to the selected call coverage service. Also, when the caller wants only to leave a message on a particular call coverage system and not talk to thecalled party, the caller preselects the call coverage option and requests to only leave a message for the calling telephone terminal (call coverage only). Upon receiving a message defining call coverage only, the called telephone terminal immediately transfers the call to the selected call coverage system.
Patent CA-2111674-A1 (CA)
Inventor: HAUSER JEAN-LUC
IPC: A61M25/00
Filed: 1993-04-28
Abstract: 2111674 9321972 PCTABS00164 L'invention concerne un cathéter externalisé à fermeture étanche comprenant une partie (10) implantée dans le corps du patient, un manchon d'ancrage (14) à la traversée de la peau, et une partie (12) externe au patient munie à son extrémité libre d'un septum auto-cicatrisant (20) réalisé en un matériau pouvant être traversé de nombreuses fois par un instrument de perfusion sans perdre son étanchéité. Le septum peut comporter deux ailettes (18) formant une embase plate permettant une fixation aisée sur la peau du patient. Le cathéter selon l'invention, du fait de l'existence d'un bouchon étanche, ne présente pas de risques d'infection comme un cathéter externalisé ouvert.
Patent CA-2113703-A1 (CA)
Title: Water filter cartridge
Inventor: KOOL DENNIS J
IPC: C02F1/32
Filed: 1994-01-18
Abstract: A self-contained, disposable water filter cartridge for a water treatment system for treatment of potable water has one-way ball check valves at the water inlet and water outlet to the cartridge. The generally cylindrical water filter cartridge is generally spherical on one end while substantially planar on the other end and is of a welded plastic construction. Asymmetrical lugs radially disposed about the periphery of the planar end are adapted to mate with an apertured deck of a water treatment system.
Patent CA-2114070-A1 (CA)
Title: Automatic blood pressure monitor having reduced data loss sensitivity to cuff pressure changes
Inventor: BROOKS JAMES R
IPC: A61B5/0225
Filed: 1994-01-24
Abstract: Abstract of the Disclosure AUTOMATIC BLOOD PRESSURE MONITOR HAVING REDUCED       DATA LOSS SENSITIVITY TO CUFF PRESSURE CHANGES             An automatic blood pressure monitor having a blood pressure cuff, an air pump applying pressurized air to the cuff, an air valve selectivelyventing the cuff, and a pressure transducer generating an output signal having a D.C. component indicative of the steady-state pressure in the cuff, and an A.C. component indicative of oscillometric pulses. The pressure transducer output is amplified and applied to an analog-to-digital converter which generates a digital word indicative of the steady-state cuff pressure. The amplified pressure transducer output is also applied to one input of a differential amplifier having an output that is applied to an analog-to-digital converter having a limited operating range. The other input of the amplifier receives an offset signal from a voltage source to offset the amplified pressure transducer output so that the output of the differential amplifier willnot exceed the operating range of the analog-to-digital converter.
Patent CA-2114098-A1 (CA)
Title: Sediment removal from holding tanks
Inventor: PAROHL KENNETH R
IPC: B01F33/40
Filed: 1994-01-24
Abstract: A method and an apparatus are disclosed for removing sediment from containers, for example, settled sand from a crude oil holding tank. With the tank containing the sediment and a quantity of liquid, air is injected into the tank adjacent the bottom to agitate the sediment and the liquid to form a slurry of the sediment in the liquid. This slurry is then drained or pumped fromthe tank. The injector mechanism is preferably a pipe that extends across the bottom of the tank and may be rotated in a circular tank.
Patent CA-2115650-A1 (CA)
Title: Determining brain activity including the nature of brain lesions by electroencephalography
Inventor: LEUCHTER ANDREW F
IPC: A61B5/374
Filed: 1992-08-12
Abstract: 2115650 9303670 PCTABScor01 Determining brain lesions by quantified electroencephalography is effected by obtaining absolute power data in a primary frequency domain for a brain region. Power data in the primary frequency domain in relation to power in a secondary frequency domain is determined. The two sets of data are related to obtain a value representative of the electrical ouput in the brain region. The representative value is compared to as selected base value and quantified departures are mapped topographically. This map is used to identify and assess lesions associated with disorders and afflictions including dementia and demyelinating diseases. Mapping is used to determine activation during tasks such as motor and memory task, cognitive processing or other conditions, and also to assess the level of perfusion of the brain. The apparatus includes electrodes (11, 12, 13, 14, and 15) attached to the head of a patient.
Patent CA-2116210-A1 (CA)
Inventor: EDGAR KEITH
IPC: A61B18/14
Filed: 1994-02-22
Abstract: ABSTRACT OF THE DISCLOSURE            An instrument for the painless removal of unwanted hair which operates efficiently on an electrical input of only 12 volts, 500mA DC, does not require a foot switch, is fully automatic and voice activated.                             (2)
Patent CA-2116377-A1 (CA)
Title: Magic mirror
Inventor: MITRI TONINO
IPC: A47G1/02
Filed: 1994-02-24
Abstract: In this object for viewing the back side of one's scalp, it is known that the average person needs to use a hand held mirror as well as a vanity mirror to view all angles of one's head and shoulder area. In this invention, it eliminates the need to use any additional manually operated device. This object being fully secured to the wall enables an individual to view one's head and shoulder area easily and conveniently without additional apparatus.
Patent CA-2117826-A1 (CA)
Title: System and Method for Measuring Polarization Dependent Loss
Inventor: FAVIN DAVID LEONARD
IPC: G01M11/00
Filed: 1994-10-11
Abstract: Polarization dependent loss (PDL) of an optical component is computed in a deterministic method that requires only four measurements, each having a unique input state of polarization.
Patent CA-2120069-A1 (CA)
Title: Moteur-turbine
Inventor: LETOURNEAU CLAUDE
IPC: F01C1/22
Filed: 1994-03-28
Abstract: Les moteurs conventionnels (piston, rotatif, turbine) comportent des caractéristiques avantageuses et désavantageuses qui leurs sont propres. Dans la présente invention, le moteur est muni de pistons qui, à partir de l'axe centrale, tourne de façon concentrique avec le centre du moteur, tout en gardant la même orientation. Ces pistons sont séparés entre eux par des segments de couronne circulaire. Ce qui permet deconserver les avantages des bonnes caractéristiques des moteurs conventionnels tout en éliminant certains de leurs inconvénients.
Patent CA-2124611-A1 (CA)
Title: Water resistant high amylose corrugating adhesive with improved runnability
Inventor: PHILBIN MICHAEL T
IPC: C09J103/00
Filed: 1994-05-30
Abstract: A water resistant, starch-based, alkaline corrugating adhesive is provided having improved tack or runnability and comprises using a chemically treated or modified high amylose starch having at least 40% by weight amylose content as the raw starch component.
Patent CA-2124874-A1 (CA)
Inventor: ANDERSEN KENNETH D
IPC: G01V1/00
Filed: 1994-06-01
Abstract: A method for producing simple seismic wavelet shapes with minimal side lobe energy for use as reference signals for seismic vibrators is disclosed.
Patent CA-2127477-A1 (CA)
Title: Non-contact measurement of displacement and changes in dimension of elongated objects such as filaments
Inventor: PERCHAK ROBERT M
IPC: G01B11/10
Filed: 1994-07-06
Abstract: Abstract of the Disclosure Methods and apparatus for measuring the lateral displacement and changes in the lateral dimension of thin long objects, particularly filament materials such as wire or various fibers. The material may move quasi-statically or at a high rate of speed. The simplest embodiment of this invention utilizes a light source such as an incandescent lamp, a laser, a light emitting diode, etc., to produce a collimated beam of light. The light traverses the sample region and impinges on a detector including least two precisely separated photosensors arranged at a predetermined angle to the object to monitor and/or measure changes in lateral dimension and displacement detection.  Displacement information which can be derived from the method and apparatus can be utilized to determine the vibration and also the tension in a monitored filament or the like.  A beam splitter can be used to produce multiple output beams directed to separate detectors.
Patent CA-2127614-A1 (CA)
Title: Absorption resonant rare earth-doped micro-cavities
Inventor: GLASS ALASTAIR M
IPC: H01S3/16
Filed: 1994-07-07
Abstract: ABSORPTION RESONANT RARE EARTH-DOPED MICRO-CAVITIES          Abstract Absorption properties of an optically active medium can be changed drastically by a Fabry-Perot microcavity. Optically active medium of the cavity includes a host material which is not optically active and at least one rare earth ion which provides optical activity to the medium. The Fabry-Perot cavity is designed to be resonant with excitation wavelength of an absorption band of the host material. The excitation is provided by a source of radiation positioned such that the radiation impinges on the cavity at an angle within a range of from zero to less than 90 degrees from the normal to the top surface of the cavity. In one embodiment Er-implanted SiO2 is used as the optically active medium. SiO2:Er has an absorptionband at 980 nm and an emission band at 1.55 µm due to 4f intra-atomic transitions of Er3+ ions. The Fabry-Perot cavity is designed to be resonant with the 980 nm absorption band of SiO2:Er. The efficiency of the cavity structure is much higher as compared to a no-cavity structure, while the spectral features of the active SiO2:Er emission are unaltered. The structure can be used for optically pumped semiconductor devices, such as optical amplifiers or lasers, which could be operated with a higher overall efficiency.
Patent CA-2129050-A1 (CA)
Title: Method for teaching the body gesture
Inventor: KATAYAMA MUNEOMI
IPC: A63B69/36
Filed: 1994-07-28
Abstract: ABSTRACT OF THE DISCLOSURE    The invention relates to a method for teaching basic motions for sports, performances or other behaviors.  A preferred teaching method includes the steps of taking pictures of trainees playing sports and performing actions with a video camera, giving guidance to them on the spot while analyzing the video image screens, sometimes in comparison with the gestures made by a trainer playing sports, and allowing the trainee to understand the correct forms and timings of the gestures or movements of the body and body members.
Patent CA-2129154-A1 (CA)
Title: Electrical switch for automotive vehicle deck lid latches and the like
Inventor: MARTUS CHARLES R
IPC: E05B65/19
Filed: 1994-07-29
Abstract: The present invention provides an electrical switch that is adapted to compensate for dimensional variations in the alignment between a resilient switch member and a movable actuation member. To this end, the electrical switch has genera! utility but is primarily intended for use in automotive applications.  More specifically, the improved electrical switch is incorporated into a latching mechanism for controlling an electrical circuit that is provided for indicating whether the latching mechanism is in a latched or an unlatched condition. The electrical switch has a pair of overlapping and offset terminal blades and further includes a biasing arrangement for biasing each terminal blade into a predetermined alignment relative to the other. The biasing arrangement is further operable for biasing both blades relative to the movable actuation member of the latch mechanism. The actuation member is made of an electrically insulative material and has a reference surface which, due to the pre-load biasing exerted on the terminal blades, is maintained in continuous engagement with at least one of the terminal blades during movement of the actuation member.
Patent CA-2132811-A1 (CA)
Title: Antimicrobial dish washing liquid
Inventor: GRAUBART BETH T G
IPC: C11D1/825
Filed: 1994-09-23
Abstract: ANTIMICROBIAL DISH WASHING LIQUIDS                 Abstract of the Disclosure Herein is disclosed a nonionic aqueous dishwashing liquid that has good foaming capability and antibacterial action.  The liquid contains:           a)  about 0.5 to 15, preferably 2, weight percent of a quaternary disinfecting compound;           b)  0.5 to 20, preferably 13-14, weight percent of a C12-C13 alcohol ethoxylate nonionic surfactant;           c)  0.0 to 20, preferably 3-5, weight percent of a C13- C15 alcohol ethoxylate nonionic surfactant;           d)  0.5 to 20.0, preferably 2, weight percent of a nonionic surfactant selected from the group consisting of cocomonoethanolamide or cocodiethanolamide or combinations thereof;           e)  0.5 to 12, preferably 4-5, weight percent cocoamidopropyl betaine nonionic surfactant;           f)  0 to 2.0, preferably 1, weight percent of the sodium salts of EDTA.
Patent CA-2134436-A1 (CA)
Title: Method and apparatus for determining the assignment of a mobile station to equipment lists
Inventor: PFUNDSTEIN MATTHIAS
IPC: H04Q7/38
Filed: 1994-10-26
Abstract: ABSTRACT OF THE DISCLOSURE          Method and Apparatus for Determining the Assignment of a Mobile Station to Equipment Lists Prior Art:   Equipment lists (B, G, W) are searched successively, or a list is searched which contains all equipment numbers (MEI1 to MEIn) along with the respective equipment lists to which they are assigned.          Technical Problem:  Mobile  stations  (ME1  to  MEn)  are assigned to one of several equipment lists  (B,  G,  W;  black,  grey,  white list).  This assignment must be checked by the mobile switching center (MSC) prior  to  the  establishment  of  a connection.            Basic Idea:         By means of a search key (KEY1 to KEYp) a number of different structural elements (S1 to Sq) is accessed.            Solution:           Each of a number of blocks of one thousand equipment numbers (MEI1 to MEIn) is addressed with a search key (KEY1 to KEYp). Within this block, individual equipment numbers (MEI1 to MEIn) or blocks of equipmentlnumbers (MEI1 to MEIn) are assigned to one list each.            Advantage:          - Requires little storage space - Few search steps
Patent CA-2134836-A1 (CA)
Title: Powdered automatic dishwashing composition containing enzymes
Inventor: DIXIT NAGARAJ S
IPC: C11D17/06
Filed: 1994-11-01
Abstract: ABSTRACT OF THE DISCLOSURE A phosphate-free powdered dishwashing composition containing a mixture of a protease enzyme and an amylase enzymes have been found to be very useful in the cleaning of dishware. The compositions contain nonionic surfactants and aalkali metal silicate and bleaching agent.
Patent CA-2137568-A1 (CA)
Title: Miniband Transport Quantum Well Detector
Inventor: LITTLE JOHN W JR
IPC: H01L27/146
Filed: 1993-06-29
Abstract: (see fig.1) A semiconductor device for detecting radiation includes a plurality of quantum well layers, each of which has bound ground and excited states, interleaved with a plurality of superlattice barrier layers, each of which has a miniband of energy states. By selection of the thicknesses and compositions of the layers, the excited states of the quantum wells have energies that are approximately equal to energies of states in the minibands. Thus, the excited states and minibands form a band of energy states that is substantially continuous across the pluralities of layers. Carriers are excited from the quantum wells' ground states to the excited states by photon absorption and are swept into and through the minibands by an externally applied electric field. The carriers are collected as photocurrent. The excited states may be selectively positioned in the minibands to tailor the properties of the devices, which can have both n-type and p-type dopants. Devices that respond to more than one wavelength band are also disclosed.
Patent CA-2139322-A1 (CA)
Title: Method of preparing boron carbide/aluminum cermets having a controlled microstructure
Inventor: PYZIK ALEKSANDER J
IPC: C22C21/00
Filed: 1993-05-27
Abstract: Subject boron carbide to a heat treatment at a temperature within a range of 1250°C to less than 1800°C prior to infiltra-tion with a molten metal such as aluminum. This method allows control of kinetics of metal infiltration and chemical reactions, size of reaction products and connectivity of B4C grains and results in cermets having desired mechanical properties.