baber/WOPTO huggingface dataset:
Patent CA-2183868-C (CA)
Inventor: KAVANAGH PATRICIA F
IPC: G10L21/0208
Filed: 1994-03-04
Granted: 2002-01-15
Abstract: An improved siren detector for detecting siren sounds which process at known  warble rates, such as yelp, wail, and high-low, within a selected frequency band. A transducer detects the siren sounds and produces a corresponding electrical output signal. This electrica l output signal is filtered to reject signals outside of the selected siren frequency  band. The signal is processed to determine the amplitud e of the electrical signal, and hence the sound level of the siren sound at the trans ducer input. This signal is also processed by an amplitu de limiter and frequency discriminator to determine the instantaneous frequency of the siren sound. This discriminator is followed by a non-lin ear filter to remove the FM clicks characteristic of siren sounds having a low s ignal to noise ratio. Selection filters are used to anal yze the precession rates, maximum frequency, minimum frequency, and shape of the pro cession characteristic to classify the siren as to its t ype, such as yelp, wail, and high-low. A sound which meets the selection criteria  and has a sound level above a predetermined threshold c auses the siren detector to trigger signal which drives a preempt output. This pre empt output signal is input to a traffic light control s ystem. This alerts the traffic light control system to control thePedestrian Walk/D on't Walk and traffic lights to cause pedestrians to cl ear the intersection and to provide a preemptive traffic control signal to a vehicle  eqquipped with the appropriate siren.
Patent CA-2186413-C (CA)
Title: Animal trap
Inventor: MEADE JOSEPH F JR
IPC: A01M23/20
Filed: 1996-09-25
Granted: 2001-01-23
Abstract: An animal trap comprising an elongated, U- shaped cage with a cover and vertically slideable doors at each end is disclosed. The trap further includes a triggering mechanism that results in the activation of at least one trap door when an animal removes bait from a bait tray. The triggering mechanism includes a vertical bait pin positioned above a hole in the bait tray, a flexible linking means connecting the bait pin to a latch pin that holds the trap door in an open position. When the bait is removed from between the bait tray and the lower end of the bait pin, the bait pin falls and accelerates through the hole in the bait tray creating tension in the flexible member which actuates the latch pin allowing the trap door to fall and lock in a closed position.
Patent CA-2190600-C (CA)
Inventor: BLANK WERNER J
IPC: C08G71/04
Filed: 1995-05-10
Granted: 2000-07-11
Abstract: Cette invention se rapporte à des polymères et à des revêtements améliorés résistants aux attaques à l'acide, ainsi qu'à leur procédé de préparation, dans lequel des polyols de polyuréthane, en raison de la présence de longues chaînes latérales d'alkyle qui contiennent un seul groupe éther dans la chaîne, une fois mis en réaction avec un composé de mélamine, tel que l'hexakisméthoxyméthylmélamine, forment des revêtements ayant une excellente solubilité dans les solvants hydrophobes et constituent des films ayant une excellente résistance aux attaques à l'acide. Grâce à leur excellente résistance aux attaques à l'acide et à leur excellente durabilité en milieu extérieur, ces polymères peuvent être utilisés comme couches de finition transparantes ou comme revêtements simples dans l'industrie automobile.
Patent CA-2198408-C (CA)
Inventor: LA PORTA THOMAS F
IPC: H04M1/57
Filed: 1997-02-25
Granted: 2000-05-23
Abstract: A method and apparatus for interactive call identification of a call to a calledparty. Identifying messages, either text and voice, can be entered on a call-by call basis by the calling party to provide information regarding the call to enable the called party to screen the incoming call. Such identifying messages can include descriptive information about the identity of the caller, the subject matter of the call or any other user-user information. The identifying message is transmitted in the form of a real-time message sent by the caller and received by the party being called in advance of their accepting the call. The identifying message is created on a call-by-call basis by the calling party. The called party receives the identifying message and, after receiving the message, the called party can accept, forward or reject the incoming call based on the information provided in the identifying message. The calling party has the option of using either real-time or pre-recorded message functions. The calling party can select, via a predetermined access code, to enter a personal message (voice or text) directly from the location from which the call is being placed after dialing the desired number. Interactive call identification can be initiated either by the called or calling party.
Patent CA-2207144-C (CA)
Title: A novel composition for transdermal administration of an estrogen, a progestin or a mixture thereof
Inventor: CARRARA DARIO
IPC: A61K47/10
Filed: 1997-06-05
Granted: 2008-07-29
Abstract: Pharmaceutical formulation in the form of a gel suitable for the transdermal administration of an active agent of the class of estrogens or of progestin class or of a mixture of both, comprising: - as permeation enhancers of the above said active agents a combination consisting substantially of an aliphatic alcohol having general formula CH3(CH2)n CH2OH wherein n = 8-16 and of a monoalkylether of diethylene glycol; - as a vehicle or carrier, a combination of an alkanol of 2÷4 C atoms, a glycol and water; - as gelling agent a polymer or copolymer of acrylic acid; - a tertiary amine as a thickening and neutralizing agent.
Patent CA-2216983-C (CA)
Title: Valve-gated injection moulding device
Inventor: VORKOPER RAINER
IPC: B29C45/28
Filed: 1997-09-30
Granted: 2003-12-09
Abstract: The invention relates to a valve-gated injection moulding device in which an actuating device of the valve pin comprises a sliding member having its walls in sliding engagement with an axial guide track. The sliding member comprises a radial opening defined by an upper and a lower contact surface.  A free end of an actuating lever having two curved actuating surfaces extends  radially into the opening of the sliding member. By means of this construction, a compact and accurate actuating device is provided which reduces radial forces on the valve pin, such that it can be operated without friction or wear. Residual radial forces are taken up by the sliding member. The stroke of the actuating device can be adjusted after mounting in a cavity plate of an injection moulding device.
Patent CA-2217444-C (CA)
Title: Dispositif d'affichage
Inventor: HAKKERT ROELOF MARTINUS
IPC: G09F19/02
Filed: 1996-01-17
Granted: 2001-12-04
Abstract: L'invention concerne un dispositif d'imagerie comprenant une source de lumière, un support d'image et un générateur d'effervescence comprenant une unité contenant un liquide et un moyen de propagation du gaz et du liquide contenu dans ladite unité. Le générateur d'effervescence et la source de lumière sont disposés d'un premier côté du support d'image, et des moyens conçus pour commander la projection de lumière à travers au moins une partie du générateur d'effervescence et du support d'image sont prévus pour produire une image combinée au niveau du second côté situé à l'opposé du premier côté du support d'image. Le liquide est de l'eau purifiée à laquelle un agent de réduction de la tension est ajouté.
Patent CA-2223586-C (CA)
Inventor: BARRY JAMES J
IPC: A61L29/16
Filed: 1996-06-06
Granted: 2009-02-17
Abstract: This invention features a method for triggering release of a drug from a hydrogel polymer (55) to tissue at a desired location of the body using a catheter. A portion of the catheter (51) is coated on its outer surface with a polymer (55) having the capacity to incorporate a predetermined substantial amount of drug which is immobilized in the polymer until released by a triggering agent or condition that is different from physiological conditions. Upon contact with a triggering agent or condition, the polymer reacts, e.g., swells or contracts such that the drug is delivered to the desired body tissue. A balloon catheter (51) is shown in which the hydrogel (55) is carried on the exterior surface of the balloon (54).
Patent CA-2228612-C (CA)
Title: Vinyl window screen frame
Inventor: VESSIO DOMENIC
IPC: E06B9/52
Filed: 1998-02-04
Granted: 2000-08-15
Abstract: A vinyl window or door screen frame which does not require clips or hooks for installation. The frame contains corner keys formed at angles greater than 91° which provide a slight bow along each side of the screen frame. This feature allows the screen frame to fit snugly into the window frame. The use of vinyl makes the screen frame flexibly rigid and thus allows for the bow in the frame. The frame stays in place due to the compression force between the window frame and the bowed edges of the screen frame.
Patent CA-2229129-C (CA)
Title: A differential pressure modulated gas valve for single stage combustion control
Inventor: ROY WILLIAM J
IPC: F23N5/18
Filed: 1998-02-09
Granted: 2000-07-11
Abstract: An apparatus senses the pressure changes in a collector box or relief box of a furnace due to changing wind conditions, and adjusts the gas flow accordingly. The apparatus controls the main gas valve of the furnace through a regulator loop. The regulator loop has a first port that communicates with a chamber below the main diaphragm of the valve, and a second port that communicates with a chamber above the main diaphragm. The regulator includes two diaphragms linked rigidly. A feedback pressure channel is connected to the collector box or the relief box, at one end, and to a feedback pressure tap at the other end. An increase in wind at the furnace vent causes changes in pressure in the collector box and the relief box. This change in pressure is delivered to the feedback pressure tap. When the pressure at the feedback pressure tap increases, the top diaphragm and the bottom diaphragm both move upward. As the pair of diaphragms move upward, there is relatively more flow through the second port and relatively less through the first port, causing a pressure differential across the main diaphragm; a higher pressure then exists above the main diaphragm compared to the pressure below the main diaphragm. The main valve then moves toward the closed position. When the pressure at the feedback pressure tap decreases, the diaphragms move down. This causes relatively more flow through the first port and relatively less flow through the second, causing the valve to open.
Patent CA-2241968-C (CA)
Title: Production and secretion of proteins of bacterial origin in filamentous fungi
Inventor: VEHMAANPERA JARI
IPC: D21C5/00
Filed: 1997-01-24
Granted: 2008-12-23
Abstract: The present invention is related to an improved production of bacterial proteins in filamentous fungus, e.g. in Trichoderma and Aspergillus. The improvement is achieved by constructing expression vectors, which comprise the bacterial protein encoding DNA sequences fused in frame with a DNA sequence encoding a filamentous fungus secretable protein or one or more functional domains of said protein. Filamentous fungus hosts transformed with such expression vectors secrete th e desired proteins or enzymes, especially xylanases or cellulases originating from bacteria or more preferably from actinomycetes into the culture medium of the host. The desired proteins or enzymes can be used directly from the culture medium after separation of host cells or recovered and treated using down-stream processes, which are appropriate for the respective application. Xylanases or cellulases from actinomycetes produced using the above expression vectors are most suitable for treating plant derived materials, e.g. in pulp and paper industries.
Patent CA-2243778-C (CA)
Inventor: PIEPHO ROBERT R
IPC: B02C15/12
Filed: 1998-07-20
Granted: 2003-07-08
Abstract: An improved main shaft and assembly for a coal pulverizer having a circumferential groove at a predetermined location on the main shaft and in the yoke bushing to provide improved fretting resistance to reduce the occurrence of main shaft failure.
Patent CA-2243965-C (CA)
Inventor: BAKER ELLEN SCHMIDT
IPC: C11D3/37
Filed: 1997-01-29
Granted: 2003-04-22
Abstract: Compositions additives de lessive et leurs procédés d'utilisation. Ces compositions renferment une polyoléfine dispersible, de préférence un polyéthylène et, au moins un composé choisi dans le groupe constitué par des agents fixateurs de colorants, des agents chélatants, des agents inhibiteurs de transfert de colorants, des agents entraîneurs de chlore, des agents entraîneurs à radical libre, des enzymes de cellulase et leurs mélanges. Cette composition est de préférence une composition liquide ajoutée lors du cycle de rinçage d'une opération de lessive non commerciale ou lors du cycle de prétraitement qui précède le cycle de lavage.
Patent CA-2246530-C (CA)
Title: Condoms
Inventor: RUDGE JANETTE MARY
IPC: A61F6/06
Filed: 1997-02-14
Granted: 2005-08-09
Abstract: A condom has a ring (6) adjacent the open end (1) for expanding the condom to a maximum diameter to maintain the open end outside the vagina, and a tubular portion (3) extending between the ring and the closed end is of a size to form a loose fit around the penis and is formed with a series of circumferential grooves (5), e.g. 3 to 5 grooves around 0.8 cm wide and 1.0 cm deep, so that the condom naturally folds in a bellows like manner for the condom to collapse to a substantially flat condition prior to use.
Patent CA-2251673-C (CA)
Inventor: WEINER AMY J
IPC: C12Q1/68
Filed: 1997-04-11
Granted: 2005-10-25
Abstract: A heteroduplex tracking assay (HTA), a hybridization based method of determining the genetic relationship between two or more viral genomes, for genotyping HCV is disclosed. The HTA for genotyping HCV was developed using single stranded probes derived from the carboxyl terminus of core and part of the E1 for HCV subtypes (1a, 1b, 2a, 2b, and 3a). HTA is more accurate than RFLP for sub-typing HCV and has potential for identifying new variants and is useful for epidemiological studies.
Patent CA-2252442-C (CA)
Inventor: IVERS BARRY ALAN
IPC: F02M37/54
Filed: 1998-10-29
Granted: 2001-08-14
Abstract: A fuel system and method for priming a diesel engine fuel system after assembly or when run out of fuel in which the system has a filter that can trap air allowing drainback of fuel to the tank. The system is provided with a fuel priming connection to the injection pump inlet, the connection having a closure for shutting the connection when not in use. A mechanically openable check valve, such as a Schraeder valve, is a preferred form of closure. The system is primed by reverse flow of fuel from the priming connection through the filter to the fuel tank to virtually eliminate trapped air from the system. The engine may then be started with a minimum of cranking. The engine may be restarted after running out of fuel by partially filling the tank and operating the normal feed pump while bleeding air from the system through the priming connection, which is closed prior to engine starting. The engine may then be reprimed after shutdown if required.
Patent CA-2253435-C (CA)
Title: Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
Inventor: MASLEN ERIC H
IPC: F04B17/00
Filed: 1997-05-05
Granted: 2006-04-11
Abstract: An apparatus and method for a centrifugal pump (10) for pumping sensitive biologic fluid, which includes (i) an integral impeller and rotor (21) which is entirely supported by an integral combination of permanent magnets and electromagnetic bearings (52, 54) and rotated by an integral motor (40), (ii) a pump housing and arcuate passages (32, 34, 36) for fluid flow and containment, (iii) a brushless driving motor (40) embedded and integral with the pump housing, (iv) a power supply, and (v) specific electronic sensing of impeller position, velocity or acceleration using a self-sensing method and physiological control algorithm for motor speed and pump performance based upon input from the electromagnetic bearing currents and motor back emf -- all fitly joined together to provide efficient, durable and low maintenance pump operation. A specially designed impeller and pump housing provide the mechanism for transport and delivery of fluid through the pump to a pump output port with reduced fluid turbulence.
Patent CA-2255106-C (CA)
Inventor: GICKLHORN DOROTHEE
IPC: G01N33/68
Filed: 1998-12-16
Granted: 2010-01-12
Abstract: The present invention relates to immunoreactive peptides which are homologous with the region of amino acid positions 12 to 235 of the varicella zoster virus protein VP26, to nucleic acids which encode these peptides and to the use of the peptides or nucleic acids for diagnosing an infection with varicella zoster virus.
Patent CA-2258139-C (CA)
Title: Game of chance kit
Inventor: SUCH DAVID A
IPC: A63F9/00
Filed: 1999-01-06
Granted: 2001-03-27
Abstract: A game package comprises a lottery ticket set, a plastic or glass bowl or container for holding the entire lottery ticket set and having an opening to accommodate most human hands, a lid for the bowl and a tamper proof seal comprising a tape with an adhesive backing that cannot be removed from the bowl and cover once applied without the use of a solvent.
Patent CA-2264512-C (CA)
Inventor: HAYAKAWA YOSHIYUKI
IPC: E04G9/05
Filed: 1999-03-04
Granted: 2004-11-23
Abstract: A form member comprises a strip-shaped main plate portion, which is flat at least on its front surface, a horizontal pair of strip-shaped side plate portions extending from both sides of the main plate portion toward its rear surface perpendicularly to the main plate portion, and a reinforcing plate provided to extend from the rear surface of the main plate portion substantially in parallel with the horizontal pair of side plate portions.      Each of the side plate portions and the reinforcing plate includes an enlarged end portion over a prescribed width from its opening end. An end plate body having an engaging portion of a shape for tightly engaging with an end of the form member body engages with this end, to form a single form member. A concrete form member reduced in thickness and weight and enabled to suppress inconvenient deformation in concrete placing can be provided due to this structure.
Patent CA-2268107-C (CA)
Title: Device for dosed introduction of fine particle material into a reactor vessel
Inventor: KEPPLINGER LEOPOLD WERNER
IPC: C22B5/14
Filed: 1997-10-06
Granted: 2009-09-29
Abstract: An arrangement (29) for the dosed introduction of fine-particulate material into a reactor vessel (10) comprises a primary fluidized bed sluice (31), into which a material supply means (9) enters from above and into which a gas duct feeding a fluidization gas (33) runs in the lower end region thereof and which includes an overflow tube (34) for conveying on the fine-particulate material. In order to allow a dosed introduction of fine-particulate material into the reactor vessel (10), a plurality of secondary fluidized bed sluices (36) are provided outside of the reactor vessel (10), whose overflow ducts (37) project into the interior of the reactor vessel (10).
Patent CA-2271667-C (CA)
Title: Method and apparatus for controlling condensation of gaseous hydrocarbon stream
Inventor: DEVERS BARNARD JAMES
IPC: B01D53/00
Filed: 1997-10-14
Granted: 2003-07-22
Abstract: In a cryogenic condensation scheme used for benzene removal in a process for liquefying natural gas, two series connected separation columns (10, 12) are provided with a feedstream (44) precooled in a heat exchanger (16) to a temperature that will at least condense the benzene component. In the first column (50), benzene is absorbed and vapor/liquid is separated with the liquid passed to the second column (60). The second column (60) provides an overhead vapor stream (68) conserved for processing to LNG, and a bottom stream comprising NGL. The cooling for condensation of gaseous feed in the heat exchanger is controlled by automatically manipulating bypass flow (38) around the heat exchanger responsive to measured vapor flow (80) from the second separation column. Accordingly, the amount of liquid (36) condensed is responsive to the flow rate of vapor withdrawn overhead from the second separation column.
Patent CA-2272379-C (CA)
Title: Mechanical interface having multiple grounded actuators
Inventor: MARTIN KENNETH M
IPC: A61B19/00
Filed: 1997-10-16
Granted: 2001-12-11
Abstract: An apparatus (14) and method for interfacing the motion of a user-manipulable object (12) with a computer system includes a user object (12) physically contacted or grasped by a user. A 3-D spatial mechanism is coupled to the user object (12), such as a stylus (35) or a medical instrument, and provides three degrees of freedom to the user object (12). Three grounded actuators (54) provide forces in the three degrees of freedom. Two of the degrees of freedom are a planar workspace provided by a closed loop linkage of members, and the third degree of freedom is rotation of the planar workspace provided by a rotatable carriage (34). Capstan drive mechanisms transmit forces between actuators and the user object and include drums coupled to the carriage (34), pulleys coupled to grounded actuators (54), and flexible cables transmitting force between the pulleys and the drums. The flexibility of the cable allows the drums to rotate with the carriage (34) while the pulleys and actuators (54) remain fixed to ground. The interface also may include a floating gimbal mechanism (32) coupling the linkage (30) to the user object (12). The floating gimbal mechanism (32) includes rotatably coupled gimbal members (32) that provide three degrees of freedom to the user object (12) and capstan mechanisms coupled between sensors and the gimbal members (32) for providing enhanced sensor resolution.
Patent CA-2276377-C (CA)
Inventor: KANETAKE TATSUO
IPC: H04B10/032
Filed: 1999-06-28
Granted: 2008-10-21
Abstract: The present invention relates to an optical network. An optical network in accordance with the present invention comprises at least: a plurality of transmission equipment components; and optical paths which connect said plurality of transmission equipment components to one another, wherein said optical paths are assigned wavelengths of predetermined transmission light and at least a transmission frame having overhead information is used to perform digital transmission, and wherein said overhead information has switching control information about a failure, and wherein each said transmission equipment component has memory means constituting a wavelength address map for storing therein at least information of wavelength addresses on said respective optical paths and failure information on said respective optical paths, and is constructed such that when a failure occurs in a working optical path, optical-path switching is done based on the switching control information about the failure, the wavelength address information and the failure information on the optical paths.
Patent CA-2277377-C (CA)
Title: Controlled release composition
Inventor: LARSSON KARE
IPC: A61K47/14
Filed: 1998-01-08
Granted: 2007-12-18
Abstract: A controlled release composition for a biologically active material, which composition is liquid or liquid crystalline and comprises at least one medium or long-chain fatty acid ester of diglycerol as a carrier for said biologically active material, said biologically active material being dissolved or dispersed in said carrier. Said composition is especially useful as a medical composition.