baber/WOPTO huggingface dataset:
Patent CA-2171354-A1 (CA)
Title: Method for monitoring quality of liquid in backwashing filter beds
Inventor: ANGELINO STEPHEN P
IPC: B01D29/66
Filed: 1996-03-08
Abstract: Improved  methods  are  disclosed  for  cleansing  a plurality  of  seriate  filter  beds  in  automatic  backwash filtering systems by backwashing the beds one at a time with backwash liquid from an effluent channel common to seriate effluent ports of the plurality of filter beds and pumping the backwash liquid seriatim through separate effluent ports of individual filter beds and then flowing filtered effluent from each bed through its effluent port into the effluent channel,  repeating such steps of backwashing and flowing filtered effluent on individual filter beds until all the filter beds  in the  system have been backwashed wherein, simultaneously with the backwashing of a second bed, waste liquid from the first bed is pumped through its port while the waste liquid is monitored for particle count and such waste liquid pumping is continued until the particle count thereof reaches a predetermined low level. Meanwhile,  the cleansing operation on the second bed is prevented from moving to a third bed until the particle count of the waste liquid from the  first bed reaches  the predetermined low level.   Such monitor control operation is applied to third and further ports until all filter beds in the system have been cleansed.
Patent CA-2172713-A1 (CA)
Title: Ultrahigh Frequency Mobile Antenna System
Inventor: DU XIN
IPC: H01Q1/12
Filed: 1994-09-28
Abstract: An improved glass mount antenna system (10) employs a pair of high dielectric constant, high Q, low loss dielectric resonators (66, 100) for TEO11 and TE111 resonance mode coupling to couple RF energy through the glass (12) to thereby provide an omni-directional communication antenna system (10) characterized by high radiation efficiency and low pattern distortion. The antenna assemblies (14, 16) are especially well suited for high frequency communication operations, for example at microwave bands of between about 1.5 GHz to 2.4 GHz, currently contemplated for PCN/PCS communications.
Patent CA-2172936-A1 (CA)
Title: Single-phase variable reluctance motor having permanent magnets embedded within a phase winding
Inventor: SMART JAMES CHRISTOPHER RUDD
IPC: H02K19/06
Filed: 1996-03-28
Abstract: A  single-phase  variable  reluctance  motor  is disclosed.  The motor includes a stator having a pair of projecting poles defining a principal axis and a rotor mounted on a rotatable shaft co-axial with the principal axis  of  the  stator.    The  stator may  have  inwardly extending poles that terminate in a central bore and the rotor may be rotatably disposed in the central bore.  In such  an  embodiment,  the  stator  poles  are  arranged generally diametrically opposed to one another.   The rotor is mounted on a shaft and has a pair of poles generally diametrically opposed from each other.   The stator and rotor may be formed from laminations of a ferromagnetic  material.    Energizing  coils  are  wound around one or more of the stator poles.  When energized, the energizing coil(s)  impart a torque on the rotor causing it to rotate.  One or more permanent magnets are inserted  into  the  winding(s)  forming  the  energizing coil(s)  to  park  the  rotor  in  a  preferred  starting position when the motor is turned off.  A pair of slot wedges is also provided to separate the energizing coils from the central bore.  The slot wedges are inserted into notches formed in the stator poles to retain the slot wedges in the central bore.  The slot wedges have cut-out portions which are aligned with the permanent magnets to expose them to the central bore.
Patent CA-2174660-A1 (CA)
Title: Catalyst composition for use in the polymerization and copolymerization of ethylene
Inventor: LO FREDERICK YIP-KWAI
IPC: C08F4/42
Filed: 1994-11-15
Abstract: An ethylene polymerization catalyst comprising two tran-sition metal components on a support with one of the two tran-sition metals in the form of a metallocene. An aluminum alkyl activator for the non-metallocene transition metal component is also present. The support is an anhydrous material prepared by reacting (i) a silanol-containing silica impregnated with a mag-nesium alkyl with (ii) an alcohol. The catalyst produces ethylene copolymer in a single reactor with a bimodal molecular weight distribution. The polymerization is practiced in a reactor (10) comprising a reaction zone (12), a velocity reduction zone (14) and a distributor plate (20). The reaction zone (12) comprises a bed of growing polymer particles and a minor amount of cata-lyst particles fluidized by the continuous flow of polymerizable and modifying gaseous components. The distribution plate dif-fuses the recycle gas. The recycle gas is separated in the cy-clone separator (22) from the catalyst particles, passes through the cooler (24), and is further compressed in compressor (25), passes through a heat exchanger (26), combines with a fresh feed and enters the reaction zone (12) through the distributor plate (20). When a desirable degree of polymerization has been ac-complished the polymer particles with bimodal molecular weight distribution are recovered from the reactor.
Patent CA-2175592-A1 (CA)
Inventor: KAHLBAU LUTZ
IPC: H01H50/02
Filed: 1994-11-02
Abstract: Ce composant possède un socle de boîtier (1) recouvert d'une couche d'élastomère (6; 9) dans la zone des perçages (4) ou d'une fente marginale (15) en face d'un couvercle (2). Lors de l'enfoncement d'éléments de connexion (11) ou lors de l'engagement du couvercle (2) par pression, une bonne étanchéité est obtenue sans opérations supplémentaires. Le socle peut être réalisé en deux matières synthétiques de propriétés différentes selon une technique de moulage par injection à deux composants.
Patent CA-2177590-A1 (CA)
Title: Chiral liquid crystal compounds having a perfluoroether terminal portion
Inventor: JANULIS EUGENE P
IPC: C09K19/34
Filed: 1994-11-16
Abstract: Fluorine-containing, chiral liquid crystal compounds comprise: a) an aliphatic fluorocarbon terminal portion containing at least two catenary ether oxygen atoms; b) a chiral, aliphatic hydrocarbon terminal portion, and c) a central core connecting the terminal portions. The compounds have smectic mesophases or latent smectic mesophases and are useful, for example, in liquid crystal display devices.
Patent CA-2177729-A1 (CA)
Title: Multi-piece railway wheel
Inventor: BROUCKE JACQUES
IPC: B21K1/28
Filed: 1996-05-29
Abstract: The wheel consists of a rim (1) and a centre (2) formed from a hub (22) and a flange (6), with a shock absorber (5) between the centre and the rim, held in place by side pieces (3, 4) and fixing bolts (7). The inner portion (9) of the rim has two concave surfaces (10, 11) on either side of the wheel's plane of symmetry and connected by a generally flat inner surface (12). The shock absorber (5) has a tulip-shaped cross-section, and is made from two rings (19, 20) of an elastic polymer material fixed between inner and outer metal linings, one co-operating with the inner part of the rim and the other with the hub side pieces. The polymer of the shock absorber is preferably of rubber charged with additives to control its rigidity. The sides of the shock absorber can be roughened to improved adhesion.
Patent CA-2180673-A1 (CA)
Inventor: REICH WOLFGANG
IPC: C07C69/96
Filed: 1996-07-05
Abstract: Radiation-curable (meth)acrylates obtainable by reacting com-pounds of the formula       I, in which R is C1-C4-alkyl, aryl or R1 and R1 is       II in which R2 to R6 independently of one another are H, C1-C4-alkyl, C1-C4-alkoxy, OH, phenyl, SH, SCH3, SC2H5, F, Cl, Br, CN, COOH, COO-(C1-C17-alkyl), COO-(C5-C10-aryl), CF3, N(alkyl)2, N(alkyl) (aryl), N(aryl)2, N?(alkyl)3 A?, N?H(alkyl)2A?, A? is the anion of an acid, and alkyl or aryl, unless indicated otherwise, is C1-C10-alkyl or C5-C10-aryl, respectively, and at least one but not more than 3 of R2 to R6 are   with hydroxy(meth)acrylates containing at least 1 free hydroxyl group and at least 2 (meth)acrylic groups in the molecule.
Patent CA-2187947-A1 (CA)
Title: Alarm tag
Inventor: HOLMGREN BERTIL
IPC: E05B73/00
Filed: 1995-04-11
Abstract: Alarm tag comprising two parts one of which (12) is provided with a pin (13) attached to said one part (12) to be located on one side of a product (11) with the pin extending through the product into locking engagement with the other part (10) located on the opposite side of the product. One of these parts has means for activating an alarm device in said other part and or an external alarm device by the alarm tag being carried into or out of an external field. Furthermore, one part comprises a contact element (26) operatively related to said alarm device or a second alarm device, said contact element normally being in a first position in which the alarm device is silent but being constructed to be switched via the pin attachment to a second position (26') in order to activate the alarm device at attempt to separate the two parts of the alarm tag.
Patent CA-2189225-A1 (CA)
Inventor: MCREYNOLDS KEN
IPC: E04H17/14
Filed: 1996-10-30
Abstract: A tensional core assembly constructed through the sequential assembly of individual components is disclosed. Two layers of longitudinal members are positioned in the assembly with two layers of transversal members such that their respective ends engage a frame of the assembly and the longitudinal members engage the transversal members. Locking members pass through cavities in the transversal members such that rotation of the transversal members relative to the longitudinal members causes deflection of the locking members and ultimately the locking of the longitudinal and transversal members relative to each other and relative to the frame. The assembly resists tensional forces pulling in various directions and may be easily assembled without the requirement of highly skilled workers. Several assemblies may be connected together to form a modular barrier system. The invention also relates to a method for making an assembly and a modular barrier system.
Patent CA-2197924-A1 (CA)
Title: Positioning apparatus for carriage on a support column
Inventor: BETTENHAUSEN ROGER V
IPC: B65B11/00
Filed: 1995-09-19
Abstract: Apparatus for tightly wrapping a package such as disposed on a pallet in a thin film such as for shipping or storage includes a rotating deck adapted to receive the pallet and package to be wrapped.  The deck is directly coupled to and supported by a gear box driven by an electric motor.  The apparatus further includes a film wrap supply in the form of a roll which lets out the film for wrapping around the package as the deck and package rotate.  A manually adjustable tensioner allows for adjusting the stretch of the wrapping film on the package, while the film wrap supply may be adjusted vertically to permit wrapping the package over its entire vertical dimension regardless of the width of the roll of film wrap.  A foot control allows an operator of the apparatus to rotate the deck and the package being wrapped while vertically moving the film wrap supply roll to fully enclose the package within the wrapping film.
Patent CA-2198055-A1 (CA)
Inventor: BROWN RANDALL L
IPC: H04M11/00
Filed: 1997-02-20
Abstract: An automated interactive telecommunication and television system in which a viewer telephonically responds via an interactive voice response system to a message transmitted on a television system. A representation of the aggregate of user responses is displayed in realtime on the television system as the user responses are received.
Patent CA-2198585-A1 (CA)
Title: High strength porcelain and method therefor
Inventor: KINSMAN KARIN M
IPC: C04B33/24
Filed: 1995-08-17
Abstract: A porcelain having 9 to 55% by weight of SiO2, 36 to 87 % by weight A12O3, 0 to 2.0 % by weight of Fe2O3, 0 to 1.0 %  by weight of TiO2, 0 to 0.5 % by weight of CaO, 0 to 0.5 % by weight of MgO, 1.0 to 4.0 % by weight of K2O and Na2O combined, and 0.25 % to 25.0 % by weight of bismuth oxide is disclosed. The porcelain has unexpectedly high unglazed bending strength and may be used for dielectric and structural applications.
Patent CA-2200748-A1 (CA)
Title: Hinged-lid cigarette pack
Inventor: JAMES ANTHONY GEORGE
IPC: A24F15/00
Filed: 1995-09-22
Abstract: There is provided a pack (10) for smoking articles, which pack (10) has an outer carton (15) having generally rectangular front, back, side, top and bottom panels and an inner frame (12). The outer carton (15) has an upper portion (16) and a lower portion (17) which are hingedly connected together about a hinge line which extends across the rear panel of the outer carton substantially parallel to the top and bottom edges of the rear panel.      The lower edge (20) of the front panel area of the upper portion (16) has at least a portion which is not parallel to said hinge line.
Patent CA-2202366-A1 (CA)
Title: Device for dewatering or washing and dewatering suspensions
Inventor: PETSCHAUER FRANZ
IPC: B30B9/20
Filed: 1995-10-12
Abstract: A device for dewatering and/or washing suspensions, in particular suspensions of fibrous materials, has two dewatering rollers (5, 6) that turn in opposite directions and at least two other guiding rollers (7, 8), in particular pressrollers. Each endless screen of a pair of endless sieve or filter screens (9, 10) is guided over a dewatering roller and a guiding roller. The suspension to be dewatered or washed flows through the gap between both screens and is dewatered therein. The device is mainly characterised in that the gap between both screens is vertical and in that screen guiding means (15) are provided in the area of said vertical gap.
Patent CA-2208124-A1 (CA)
Title: Polymer's electromagnetic dynamic injection molding method and the apparatus therefor
Inventor: QU JINPING
IPC: B29C45/50
Filed: 1997-06-18
Abstract: The present invention relates to polymer's electromagnetic dynamic injection moulding method and the apparatus therefor. The charging barrel and the screw as will as their associated components for carrying out the processes of plasticization, injection and pressure maintaining of the polymer are all disposed in the inner cavity of a metal moving body driven to rotate pulsatorily by an electromagnetic winding. At the time when the screw and the metal moving body are simultaneously rotating pulsatorily, the screw is at the same time making axial pulsative displaments, so that the processes of plasticization, injection and pressure maintaining are all carried out in a periodic oscillating state. This type of injection moulding method and apparatus have the advantages of small volume, light weight, low manufacturing cost, low energy consumption, low noises, wide adaptability to materials and excellent quality of the moulded products.
Patent CA-2209037-A1 (CA)
Title: Internal flexible dust seal
Inventor: HAMMOND STEPHEN E
IPC: F16L27/108
Filed: 1997-07-18
Abstract: An internal flexible dust seal for connecting and accomodating misalignment, expansion, contraction, and torsion between openings of adjacent ducts carrying dust and particulate laden hot gases. The internal flexible dust seal can undergo lateral, axial, angular, and torsional movements while at the same time keeping any particulate matter or dust from leaving the duct and/or entering the space between liner plates and the insulation cavity of an outer gas flexible seal or expansion joint. The internal flexible dust seat is fixed to the inside of the duct.
Patent CA-2209610-A1 (CA)
Inventor: HARDIN LARRY C
IPC: G01S11/14
Filed: 1995-01-18
Abstract: A passive optical speed and distance measuring system includes a pair of camera lenses (14, 18) positioned along a common baseline (60) a predetermined distance apart and controlled by an operator to capture images of a target at different times. The camera lenses (14, 18) are focused on light sensitive pixel arrays which capture target images at offset positions in the line scans of the pixel arrays. A video signal processor with a computer (30) determines the location of the offset positions and calculates the range to the target by solving the trigonometry of the triangle formed by the two camera lenses (14, 18) and the target. Once the range to the target is known at two different times the speed of the target is calculated.
Patent CA-2209924-A1 (CA)
Inventor: MUEHL THOMAS P
IPC: C23C22/83
Filed: 1996-01-11
Abstract: Procédé sans chrome pour obtenir une surface métallique résistant à la corrosion, hydrophile, à une faible odeur et biorésistant.  Le procédé comprend le traitement initial du métal avec une solution de fluorure, de zircone et d'acide protique.  Ensuite, le métal est traité avec une solution de silicate hydrosoluble et à pH alcalin.  Les rinçages après chaque étape sont optionnels, et on préfère un séchage au four comme dernière étape du procédé.
Patent CA-2213351-A1 (CA)
Inventor: BILLIMORIA ROHINTON P
IPC: G06F1/16
Filed: 1997-01-20
Abstract: There is described an integrated reconfigurable man-portable communication system (100), adapted particularly for use in military or law enforcement tactical situations, including a modular compact computer (201a) with mission oriented hardware and software which provides the focal point for integration of various peripheral systems. The reconfigurable man-portable system (100) provides a ballistic helmet (402) with an integrated audio headset assembly (450). The helmet (402) also includes a modular heads-up display assembly (432) for providing remote viewing via a helmet mounted laser detection system (408,410), weapon mounted thermal weapons site (525), remote video system (535), and laser range finder/digital compass assembly (530). The heads-up display assembly (432) and the audio headset assembly (450) provides the user with tactical information such as; 360 degree laser detection from helmet mounted detectors (408, 410), target location for direct and indirect target engagement from the weapon mounted laser range finder/digital compass assembly (530), and navigational positioning from a global positioning system (245) and individual radio module (243) integrated within a modular load carrying device (601). The integration and modularity of the man-portable system (100) provides a flexible, mission oriented system capable of providing the user with enhanced awareness and communications ability.
Patent CA-2215016-A1 (CA)
Title: Isolated nucleic acid molecules which are members of the mage-xp family and uses thereof
Inventor: BOON-FALLEUR THIERRY
IPC: C12Q1/68
Filed: 1996-03-11
Abstract: The invention relates to members of the MAGE-Xp family of nucleic acid molecules. These molecules differ from the previously described MAGE nucleic acid molecules in that members of the MAGE-Xp family do not hybridize to the previously identified MAGE sequences. Further, the members of the MAGE-Xp family are found on the Xp arm of the X chromosome rather than on the Xq chromosone, as was the case with the previously identified MAGE genes.
Patent CA-2216224-A1 (CA)
Title: Block algorithm for pattern recognition
Inventor: PETERS DAVID B
IPC: G10L15/08
Filed: 1997-09-19
Abstract: Comparing a series of observations representing unknown speech, to stored models representing known speech, the series of observations being divided into at least two blocks each comprising two or more of the observations, is carried out in an order which makes better use of memory. First, the observations in one of the blocks are compared (31), to a subset comprising one or more of the models, to determine a likelihood of a match to each of the one or more models. This step is repeated (33) for models other than those in the subset; and the whole process is repeated (34) for each block.
Patent CA-2217674-A1 (CA)
Title: Animal trap
Inventor: LEE DONALD R
IPC: A01M23/34
Filed: 1997-10-08
Abstract: An animal trap comprises a swing frame mounted on a base. The swing frame has a pair of laterally spaced-apart arms and is pivoted to the base for swinging movement from a generally horizontal position to a generally upright position. A spring urges the swing frame to the upright position. A retainer releasably holds the swing frame in the horizontal position. A cable has one end anchored and the other end formed in a loop with the cable extending through the loop to form a noose. Opposite sides of the noose are releasably connected to the arms to hold the noose in an open condition. A baited lure is placed within the noose when the swing frame is horizontal and is operative when pulled by an animal to release the retainer and allow the swing frame to move to its upright position and the noose to snare an animal by the neck and tighten when the animal pulls away.
Patent CA-2219335-A1 (CA)
Inventor: TULIP JOHN
IPC: B64D47/00
Filed: 1997-10-24
Abstract: A gas detector for use with a vehicle, for example a helicopter or motor vehicle, in which a laser absorption cell is carried on the exterior of the vehicle, and a laser transceiver and analyzer module is coupled to the laser absorption cell through light guides, for example optical fibers. The laser absorption cell preferably has the form of a Herriot cell, with opposed mirrors carried by a rigid frame, and with an open passageway for flow of air between the mirrors directly from the atmosphere through the laser absorption cell. Windows and/or a screen or other devices may be used to protect the mirrors from contamination. A method of detecting a target gas, comprising traversing a target area with a vehicle having an exterior; passing air through a laser absorption cell carried on the exterior of the vehicle; directing light through the laser absorption cell; and analyzing light that has passed through the laser absorption cell for a signal indicative of the presence of the target gas.
Patent CA-2219616-A1 (CA)
Title: Method of optimizing neighbor set during soft handoff of a mobile unit in a cdma cellular environment
Inventor: JALALI AHMAD
IPC: H04W48/20
Filed: 1997-10-27
Abstract: System and method for optimally updating a neighbor set for use by a mobile unit during soft handoff of the mobile unit in a CDMA cellular telephone environment is disclosed. A two-step process is used to ensure that the individual neighbor sets of active set members are combined in a manner such that only pilots representing the more important sectors are included in the updated neighbor set and pilots representing the less important sectors are excluded therefrom. In the first step, active set members whose RTD is more than twice as great as an OWD threshold are eliminated from consideration. In the second step, the neighbor set of the mobile unit is updated using the sectors included in the individual neighbor sets of the active set members that were not excluded by the first step, wherein those sectors are included in the updated neighbor set according to the number of individual sets in which they are found and their priority within those sets. In an alternative embodiment, a combined carrier-to-interference ratio for each of the individual neighbor set members is also used in updating the neighbor set. In an alternative embodiment, the individual neighbor set of the active set member having the shortest RTD is used as the updated neighbor set.
Patent CA-2226381-A1 (CA)
Title: Method and arrangement for levelling out the tension of optical fibres
Inventor: P IVINEN TEUVO
IPC: G02B6/44
Filed: 1996-07-03
Abstract: The invention relates to a method for levelling out the tension of optical fibres, in which optical fibres (3) are passed from starting reels (1) through an equalizer wheel structure (4) to the next stage of the process. In order to achieve a flexible and simple solution, the equalizer wheel structure (4) is formed of two wheels (5, 6) in sequence when viewed from the direction of movement of the fibres (3), of which wheels the first wheel (5) is adapted to supply more fibre to the space between the wheels (5, 6) than what passes over the second wheel (6).