baber/WOPTO huggingface dataset:
Patent CA-2123392-A1 (CA)
Inventor: DESTEFANIS MARIO P
IPC: A61C13/00
Filed: 1994-05-11
Abstract: A molten wax applicator for use in building up wax patterns and forms, particularly in dental applications. A hollow, heated stock provides a reservoir for holding molten wax. A nozzle having a wax-dispensing tip connects to the stock. A conduit through the nozzle interconnects the reservoir with the dispensing tip.      A valve raceway intercepts the conduit. A valve incorporating resilient, polymeric conduit-sealing elements works in the raceway. A valve actuator with associated lock is connected to the valve for shifting it between open and closed positions permitting, in the open position, controlled dropwise or continuous flow of molten wax to the work.
Patent CA-2125144-A1 (CA)
Title: Htlv-1 probes for use in solution phase sandwich hybridization assays
Inventor: KOLBERG JANICE A
IPC: C12Q1/70
Filed: 1992-12-21
Abstract: Novel DNA probe sequences for detection of HTLV-1 in a sample in a solution phase sandwich hybridization assay are described.  Amplified nucleic acid hybridization assays using the probes are exemplified.
Patent CA-2132529-A1 (CA)
Title: Stowable telescoping seat belt mechanism
Inventor: MILLS ROY L
IPC: B60R22/22
Filed: 1993-04-28
Abstract: A telescoping seat belt device comprising: a support (42, 142);  and a buckle plate (70) for supporting a seat belt buckel (74);  and a pivoting and sliding mechanism (50, 90, 150, 190) for telescopically moving the buckle plate and a buckle from an extended position to a stowed position. The mechanism includes an activation bar (50) rotationally mounted on the support (42) and a slide link (60) pivotally supported at one end of the first pivot (52); a second link (90) rotatably secured to the second pivot, wherein the buckle plate (70) is slidable on the slide link (60) from a first position to a second position, and wherein the second link (90) is connected to the buckle plate (70) such that the buckle plate moves on the slide link (60) in response to the movement of the second link. A first spring (58) joins the activator bar (50) and the second link (90) coupling the motion of the activator bar (50) to the second link such that in response to the movement of the activator bar the first spring urges the second link to rotate towards the first pivot (52) such motion causing the buckle plate (70) to slide toward the second position along the slide link, wherein as the buckle plate moves toward the second position the slide link (60) is caused to rotate toward the second pivot carrying the buckle plate with it and moving the buckle (74) to the stowed position.
Patent CA-2135434-A1 (CA)
Title: Vibrator alerters
Inventor: BAILEY KEVIN J
IPC: H04B1/16
Filed: 1994-11-09
Abstract: Vibrator alerter for a portable communications device having a diaphragm forming part of one mass and a second mass including a rigid body of a solenoid. The diaphragm has a marginal edge secured to the second mass and the two masses are relatively movable. The solenoid upon energization acts against the diaphragm stiffeners to cause relative reciprocation of the masses with the movable mass being such a size as to limit its reciprocating movement to frequencies below audio frequencies so as to provide a tactile vibrational characteristic. Either mass is movable, but if the first mass is to move, the diaphragm may need to carry a weight to ensure the first mass is sufficiently large to provide the required vibrational frequency.
Patent CA-2139441-A1 (CA)
Title: Process and apparatus for neutralisation of acid streams
Inventor: WALSH STEPHEN P K
IPC: A62D3/36
Filed: 1993-08-19
Abstract: A process for the neutralisation of an acid stream by (a) feeding the acid stream and calcium hydroxide through a first reaction zone, preferably a plug flow reactor (1) to a second reaction zone, preferably a stirred tank reactor (12) so that the cal-cium hydroxide partially neutralises the acid stream during feed of the stream to the second reaction zone, the second reaction zone being provided with means for measuring the pH of the solution within the second reaction zone (14) and means for feeding aqueous base to the second reaction zone. The apparatus comprises a plug flow reactor (1) provided with means for feeding the acid stream (4) and calcium hydroxide stream (8) thereto under ratio feed-forward control (7), and a stirred tank reactor (12) pro-vided with means for measuring the pH of the solution therein (14), an aqueous base feed (15) and feedback control means (17) for controlling the addition of aqueous base thereto.
Patent CA-2142159-A1 (CA)
Inventor: SUGIURA NORIYASU
IPC: B62D1/28
Filed: 1995-02-09
Abstract: A magnetically guided unmanned vehicle system to carry various loads along a guide path of a closed loop which comprises guide path consists of magnetic tape, a magnetic guide type steering drive unit having a magnetic sensor to detect magnetism from said tape and a drive wheel, said steering drive unit having a driving means to drive said drive wheel and a steering means controlled automatically by signals detected by said magnetic sensor, a trolley which has wheels at each of the four corners of the lower surface of a chassis thereof, the front said wheels having a universal casters, and a carriage shelf assembly which has one or a plurality of horizontal automatic roller conveyer(s) as shelves. The magnetically guided vehicle can be constructed by combining the trolley, the steering drive unit and the carriage shelf assembly and the trolley can be used for its original purposes by disassembling such parts. The drive wheel can be changed from a position wherein the wheel touches the floor with a pressure sufficient for running to a position wherein the wheel is suspended with a clearance above the floor.
Patent CA-2143962-A1 (CA)
Title: Synthesis gas preparation by partial oxidation-steam reforming
Inventor: LONG DAVID C
IPC: C01B3/36
Filed: 1995-03-06
Abstract: Synthesis gas is produced by reacting a hydrocarbon feed, oxygen, steam, and optionally carbon dioxide in a solids containing reactor where a portion of the oxygen is premixed with a substantial portion of the feed in the absence of catalytic solids.
Patent CA-2152351-A1 (CA)
Title: Combination of a cholesterol biosynthesis inhibitor and a .beta.-lactam cholesterol absorption inhibitor
Inventor: DAVIS HARRY R
IPC: A61K31/395
Filed: 1993-12-21
Abstract: Methods of reducing plasma cholesterol levels and treating or preventing atherosclerosis comprising administering an effective amount of a combination of a cholesterol biosynthesis inhibitor and a .beta.-lactam cholesterol absorption inhibitor, as well as pharmaceutical compositions and kits useful in those methods, are disclosed.
Patent CA-2154635-A1 (CA)
Title: Halobutyl/solution polymerized sbr innerliner
Inventor: BEERS ROGER NEIL
IPC: B60C1/00
Filed: 1995-07-25
Abstract: The present invention relates to a tire innerliner and pneumatic tires containing the same, which are prepared from a composition comprising, based on 100 parts by weight of rubber, a blend containing 30 to about 50 parts by weight of a solution polymerized styrene-butadiene rubber having a Tg ranging from -45°C to -65°C and 70 to 50 parts by weight of a halobutyl rubber.
Patent CA-2155912-A1 (CA)
Inventor: CALKINS DENNIS EARL
IPC: E21B33/043
Filed: 1995-08-11
Abstract: A  fixed,  non-compliant,  non-floating  offshore  platform subject to lower wave, wind, current, and rig loadings resulting from a configuration that supports the portion of the well casings that extend from near the seafloor to a deck level above the water surface using tension instead of intermediate lateral supports.  Only the smallest one or two well casings among all those that comprise the well casing system are extended back from the seafloor, which further reduces the lateral loadings on the structure.
Patent CA-2164199-A1 (CA)
Title: Evacuation system
Inventor: O'BRIEN DANIEL P
IPC: B63B23/32
Filed: 1994-06-03
Abstract: A system for launching and retrieving boats from an offshore work platform (12), the system comprising a deployment arm (20) adapted to be rotatably secured at one end thereof to superstructure of the platform for rotation between a first pre-lunch position and a second post-launch position, means (38) for controlling rotation of the arm between the first and second positions, and boat support means mounted adjacent an outer end of the arm, the support means comprising a spaced pair of support members (50) each having thereon an open claw structure for receiving a support pin associated with a respective side of a boat.
Patent CA-2164268-A1 (CA)
Title: Electronic sound source having reduced spurious emissions
Inventor: FURUHASHI MAKOTO
IPC: G10H7/06
Filed: 1995-12-01
Abstract: An electronic sound source comprises an adder which calculates  a sum of volume data and differential volume data in response to each dock signal supplied at equal intervals of time and transfers it to a limiter and a volume register.  The sum volume data is then limited to a predetermined value by the limiter and passed across a volume register to a volume controller where it is multiplied by an output of a mute processor.
Patent CA-2165072-A1 (CA)
Title: Method and Apparatus for Controlling Zebra Mussels in Water Conduits
Inventor: CHANG TIAO J
IPC: C02F1/20
Filed: 1994-06-15
Abstract: A method is disclosed for removing dissolved oxygen from water containing zebra mussels. An apparatus for carrying out the method is also disclosed. Oxygen is removed from water to a level below that which is sufficient to support the survival respiration of the zebra mussels. A flow of water (6) from inlet conduit (3) enters a vacuum chamber (2) which is adapted to maintain an air space (5) above water (6). A vacuum pump (7) maintains a vacuum in air space (5) so as to extract dissolved gases, including oxygen, from water (6). An agitation device (8) and a dissolved oxygen sensor (9) may be included within the vacuum chamber (2). An additional vacuum unit (20) may be used to increase the throughput and discharge rate of water entering and leaving the system.
Patent CA-2168072-A1 (CA)
Title: Device and method for cleaning the fluid conduit of a whirlpool
Inventor: VILLEMAIRE ROBERT
IPC: A47K3/022
Filed: 1996-01-25
Abstract: The device is used for cleaning a fluid conduit of a whirlpool. The device comprises an elongated tube to be set within the conduit and the tube is provided with a plurality of perforations along its length. The tube has  an inlet for receiving a cleaning liquid under pressure, such as hot water, into the tube and thereby causing the cleaning liquid to be sprayed through the perforations inside the fluid conduit of the whirlpool during a   cleaning operation mode.  The device also comprises a liquid inlet valve for controlling a flow of the cleaning liquid through the inlet and a drain valve for directing the  cleaning  liquid  sprayed  into the conduit towards a drain.  The present invention also relates to a whirlpool provided with such a device for cleaning  its fluid conduit and a method thereof. The device and the method allow to clean rapidly the fluid conduit of a whirlpool without requiring use of a great amount of detergent.
Patent CA-2170331-A1 (CA)
Inventor: FARMERY RICHARD A
IPC: B01F35/00
Filed: 1996-02-26
Abstract: The invention provides a unique and novel vessel and process that concentrate solids, produces paste and stores paste from mixtures of solids and liquids. The vessel or tank includes a vertical shaft mounted within the tank and a means for rotating the shaft for circulating paste. The shaft includes a meansfor lifting the paste and a rake arm extending outwardly from a lower portion ofthe shaft for moving the paste radially inward. A vertical flow director within the tank is connected to the shaft for maintaining paste flow and facilitating pastecirculation at outer portions of the tank. A paste exit port through a lower portion of the tank is used for removing paste. The method of the invention forms a paste by first introducing a mixture of solids and liquids into a tank. A portion of the solids and liquids are lifted vertically to establish a circulation pattern within the tank. The circulation of the mixture of solids and liquids ismaintained within outer portions of the tank with at least one flow director. The mixture of solids and liquids is then circulated at a controlled rate to form paste.
Patent CA-2170801-A1 (CA)
Title: Message carrier
Inventor: WOODLAND BRADLEY GRANT
IPC: G04B45/00
Filed: 1996-03-01
Abstract: The invention relates to a message carrier which is in the form of a wrist watch.  The watch face has the Medic Alert logo applied thereto, whereas the rear face of the watch, as defined by the watch body, can have certain medical information applied thereto.  The Medic Alert logo, in use, can serve to identify a person having a medical condition, whereas details of this condition is applied to the rear face of the watch.
Patent CA-2170924-A1 (CA)
Title: Method and arrangement in cooling medium circulation of a recovery boiler
Inventor: KUUKKANEN KARI
IPC: F23G7/04
Filed: 1996-03-04
Abstract: A method in cooling medium circulation, whereby the recovery boiler comprises a furnace limited by wall tubes provided with cooling medium circulation and substantially horizontal floor tubes; a supply system for combustion air; and a supply system for black liquor, whereby a so-called smelt layer is formed in a combustion process on the floor composed of the floor tubes. At least in some of the floor tubes, at least on a section of their length, is arranged a longitudinal flow - particularly a spiral flow - for mixing the liquid and steam phases of the cooling medium.
Patent CA-2172520-A1 (CA)
Title: Environmental monitoring of organic compounds
Inventor: BARBER CHRISTOPHER
IPC: G01N33/18
Filed: 1995-07-26
Abstract: Environmental monitoring of low concentra-tion of organic compounds in a medium such as ground water is effected by using a diffusion cell (112) having a polymeric membrane formed into a helical tube (125) and immersed in the envi-ronmental fluid so that organic compounds at ppb and ppt concentrations diffuse into and through the polymeric material. A carrier gas in the polymeric tube acquires a concentration of the organic com-pounds substantially in equilibrium with the con-centration of the organic compounds in the en-vironmental fluid. For the purpose of permitting monitoring with detectors (116) which are not sen-sitive to extremely low levels of organic com-pounds, a concentrating device such as a thermal desorption tube (114) can be provided for process-ing the gas and periodic thermal activation to dis-charge therefrom organic compounds to be detected at a sensor.
Patent CA-2174495-A1 (CA)
Inventor: BOWMAN JOHN H
IPC: B65G45/18
Filed: 1996-04-18
Abstract: Conveyor cleaning assemblies are disclosed for cleaning endless conveyors such as for conveyor belts or chains. Each assembly includes a cleaning head which carries brushes for engaging one or more adjacent surfaces of the conveyor and a head support for holding the cleaning head in a fixed position adjacent a predetermined portion of the conveyor path. The cleaning head is engaged on the head support by sliding engagement movement in a direction generally parallel to the direction of movement of the conveyor that is contacted by the cleaning head, with the cleaning head and the head support having abutment stops to limit this engagement movement. Accordingly, the friction forces of the conveyor hold the cleaning head in position on the support without requiring any further attachment devices. In one embodiment, a cleaning head with brushes and a scraper is so mounted for cleaning a conveyor belt. In other embodiments cleaning heads with brushes are so mounted on opposites sides of large conveyor chains.
Patent CA-2174996-A1 (CA)
Inventor: ERWIN RONALD DEAN
IPC: B29C48/06
Filed: 1996-04-25
Abstract: A process for fabricating an article having a rigid foam core and a resilient outer plastic shell by extruding a heated thermoplastic material to form the shell, partially hardening the extruded plastic shell, injecting a liquid foam material into the interior of the partially hardened plastic shell, and cooling the shell and the liquid foam material to fully harden the plastic shell and the foam under conditions which cause the article to have a predetermined shape and size.
Patent CA-2176871-A1 (CA)
Title: Small hand-held electronic apparatus with field effect light emitting device
Inventor: TAKAHASHI TOMOHIRO
IPC: H05B44/00
Filed: 1996-05-17
Abstract: A drive circuit for a field effect light emitting device (EL panel) for a small hand-held electronic apparatus is disclosed.  When a control signal from a charge/discharge frequency control means is driven low, a first step-up selection switch (SW) is turned on and a first discharge means is turned off.  A voltage step-up device and a first voltage step-up means are then connected, and the first step-up means begins a voltage step-up operation in response to a step-up clock signal.  A reverse induction voltage generated by the voltage step-up operation is rectified by a first rectifier and is input to the EL panel.  The EL panel accumulates reverse induction voltage input at each clock signal of the step-up clock and emits light to provide illumination.  When the control signal is switched from low to high, the first step-up selection switch (SW) is turned off and the first discharge means is turned on.  Thus, the accumulated charge is discharged.  This cycle is uninterruptedly repeated and the EL panel continuously  emits light.  The advantage is a more efficient and compact light source that includes fewer parts, is less expensive to manufacture, and the life of the EL panel of the light source is prolonged.
Patent CA-2179782-A1 (CA)
Title: Bursting device for latex toy balloons
Inventor: NAGY SANDOR A
IPC: A63H27/10
Filed: 1996-06-24
Abstract: A balloon bursting device for mass releasing of latex toy balloons for special occasions in banquett halls, ballrooms, stadiums or any other location. The balloon bursting device comprises a main torsion spring actuator colubined with a winding lever and a puncturing pin. The main spring stores the energy needed to puncture and burst the large latex balloon storing the great number of small latex balloons to be released. The bursting cycle is initiated by the electromagnetic actuator which releases the energy stored in the spring when the coil of the electromagnet is energized. This releases the built in latching device and causes the bursting pin to puncture and burst the large storage balloon and then to release the small balloons stored. This subject bursting device is suitable for actuation by remote control.
Patent CA-2185125-A1 (CA)
Title: A turbine engine ignition exciter circuit
Inventor: WILMOT THEODORE S
IPC: H01L29/06
Filed: 1995-03-09
Abstract: An improved turbine engine ignition exciter circuit.  Energy stored in an exciter tank capacitor is subsequently switched to the load (igniter plug) through a novel thyristor switching device specifically designed for pulse power applications.  The switching device is designed and constructed to include, for example, a highly interdigitated cathode/gate structure.  The semiconductor switching device is periodically activated by a trigger circuit which may be comprised of either electromagnetic or optoelectronic triggering circuitry to initiate discharge of energy stored in exciter tank capacitor to mating ignition lead and igniter plug. Likewise, the present invention allows new flexibility in the output PFN (Pulse Forming Network) stage, eliminating need for specialized protective output devices such as saturable output inductors. Due to considerably higher di/dt performance of the device, true high voltage output pulse networks may be utilized without damage to the semiconductor switching device.  An exemplary embodiment of invention contains a novel feedback network which causes thyristor timing (trigger) and DC-DC converter circuits to compensate for varying igniter plug wear and dynamic engine combustor conditions, tailoring exciter spark rate, output voltage and energy to account for dynamic load conditions.
Patent CA-2187899-A1 (CA)
Title: Combination roll and die coating method and apparatus with improved die lip
Inventor: BROWN OMAR D
IPC: B05C9/06
Filed: 1995-03-17
Abstract: A die coating method and apparatus includes a die (40) having an upstream bar (64) with an upstream lip (60) and a downstream bar (66) with a downstream lip (62). The upstream lip is formed as a land (68) and the downstream lip is formed as a sharp edge (70). Coating fluid exists the die (40) from the slot to form a continuous coating bead between the upstream die lip, the downstream die lip, and the surface being coated. A metering roller (332) removes excess coating fluid from the coated web. The apparatus cam include a roller (330) on which the coating fluid is initially coated and which contacts a web. A doctor blade (338) or a metering roller removes excess coating fluid from the roller.
Patent CA-2188256-A1 (CA)
Title: Improved performance cast detergent
Inventor: LENTSCH STEVEN E
IPC: C11D17/04
Filed: 1995-02-24
Abstract: A solid cast warewashing composition having improved soil removing properties is produced for use in automatic washing machines. A liquid detergent composition is cast and solidified in a mold. The solid cast detergent, surrounded on all but its upper surface by the mold, is used in automatic washing machines having a dispensing device designed to dispense a liquid aqueous detergent formed from the solid cast detergent using an impinging liquid spray. The liquid aqueous detergent flows out of the dispensing device generally simultaneously with its formation in the dispenser. The cast detergent composition includes at least about 0.1 wt.% of a selected nonionic surfactant, an alkali metal hydroxide, a sequestrant, water of hydration and optionally further an available chlorine source, a defoamer, or the like.
Patent CA-2188458-A1 (CA)
Inventor: PEREZ C SERGIO
IPC: F16K31/383
Filed: 1996-10-21
Abstract: A fluid valve operating by pressure differentials and having flow transfer meanswhich regulates small flows of control fluid. This valve is sensitive to small changes of pressure and resistant to great working pressures, having only a few components of simple design. The valve has a rigid valve body with an opening for flow inlet and an opening for flow outlet, oriented substantially transversely to the inlet. The body has a main cavity between the inlet and the outlet. A valve seat is adjacent the flow inlet. The valve body has passages for the inlet of the control fluid and for its discharge, which are associated with the flow transfer means for the control of the valve. The valve also has anelastomeric body which engages the valve seat for varying the main fluid flow. The elastomeric body is located inside a main cavity of the valve, and is hollow and open at one of its axial sides and has a control fluid passage in the other side end. This elastomeric body is at least made up of two coaxial zones: one sealing zone and a second zone of radial seal. A third intermediate thin wall zone may be included. These zones of the elastomeric body fulfil specific functions during the operation of the valve, thus avoiding the need for additional separate components which would make the designcomplex and increase the manufacturing cost.