baber/WOPTO huggingface dataset:
Patent CA-2197936-C (CA)
Title: Vacuum cleaner and method
Inventor: ANTHONY PHILIP M
IPC: A47L11/40
Filed: 1997-02-19
Granted: 2005-05-17
Abstract: Disclosed is a wet/dry carpet cleaner having a large tank assembly for fluids. A bladder containing fresh or cleaning water is positioned in the large tank. Means for dispensing the cleaning water to a brush, and then vacuuming the same and returning the soiled fluid to the recovery tank portion of the tank assembly are also provided. The present invention stems from the development of a brush head assembly which is pivotally secured to the chassis assembly and includes the driving motor, rotating brush, and spray mechanism. The pivotal securement results in the weight of the brush head assembly applying a constant force on the brush throughout the entire cleaning cycle, independent of the amount of fluid contained in the recovery tank or the bladder. Secondarily, the present invention is addressed to configurating and proportioning the bladder to insure a relatively constant load on the nozzle. By balancing the nozzle loading and, therefore, the downward pressure per square inch on the nozzle throughout the cycle to compensate for fluid loss or fluid re-distribution; with the brush loading remaining constant throughout the cycle, consistency is maintained during the entire period while the carpet is being cleaned.
Patent CA-2198026-C (CA)
Inventor: TEISSIER REMY
IPC: C07C49/17
Filed: 1997-02-19
Granted: 2000-07-18
Abstract: L'invention concerne un procédé d'obtention de composés carbonylés .beta. hydroxy et/ou de composés carbonylés .alpha. - .beta. insaturés, caractérisé en ce que l'on met au moins un aldéhyde ou une cétone au contact d'un catalyseur solide de formule générale (I): ¢( Mg2+)1-x (Al3+)x(OH-)2!X+ ¢(OH-!x-(H20)n (I) dans laquelle: 0,20 ~ x ~ 0,33 et n < 1. Les composés carbonylés .alpha. - .beta. insaturés obtenus peuvent être soumis soit à une hydrogénation sélective, en utilisant des catalyseurs connus, pour donner les composés carbonylés saturés correspondants comme des aldéhydes ou cétones ayant un poids moléculaire plus élevé que ceux ou celles qu'on met en oeuvre, soit à une hydrogénation totale pour donner les alcools saturés correspondants. Ces aldéhydes ou cétones ou alcools sont employés industriellement comme intermédiaires de synthèse ou comme solvants ou dans l'industrie des parfumeries.
Patent CA-2213013-C (CA)
Inventor: HART JAMES E
IPC: B60T13/66
Filed: 1997-08-13
Granted: 2001-05-29
Abstract: A valve device is used to reduce the air pressure in a brake pipe disposed on a railroad car in a train consist at a location in the train consist remote from the locomotive of the train consist.  The valve device defines a primary supply passage, a branch supply passage and an exhaust passage.  The primary and branch passages communicate with the brake pipe.  All of the passages communicate with an elongated bore defined within the valve device.  The valve device includes an adjustable first valve, a second valve, an electric motor drive and an pneumatic drive.  The adjustable first valve and the second valve are both part of an elongated valve body member that can move reciprocatingly within the elongated bore.  The adjustable first valve is used to vent air pressure from the brake pipe via the primary and exhaust passages at various rates of discharge.  The rate of discharge is in proportion to the extend the adjustable first valve is commanded open.  The electric motor drive responds to a drive signal for a service brake pipe air pressure reduction through which it opens the adjustable first valve, but not the second valve.  The second valve is used to quickly vent air pressure from the brake pipe via the branch and exhaust passages.  The pneumatic drive responds to an actuating signal for an emergency brake pipe air pressure reduction through which it fully opens the second valve thereby also fully opening the adjustable first valve.
Patent CA-2217883-C (CA)
Inventor: NILSSON STEFAN
IPC: A61B5/083
Filed: 1996-04-11
Granted: 2001-08-07
Abstract: A device for detecting one or more components in exhalation air includes a tubular element into whose one end exhalation air is introduced and at whose  other end there is attached an absorbent plate which absorbs the component(s ), wherein the plate can be detached for determination of the components in a measuring apparatus.
Patent CA-2221522-C (CA)
Title: Quenching reagents and assays for enzyme-mediated luminescence
Inventor: SHERF BRUCE A
IPC: C12Q1/66
Filed: 1996-06-06
Granted: 2003-10-07
Abstract: The present invention relates to single and dual-reporter luminescence assays utilizing general and specific reagents to quench enzyme-mediated reactions.  In one embodiment of the invention, a reagent is added to the assay which non-specifically quenches enzyme-mediated luminescent reactions. In another embodiment of the invention, a reagent is added to the assay which simultaneously quenches one enzyme-mediated luminescent reaction while activating another distinct enzyme-mediated luminescent reaction. An assay kit containing specific quench reagents, and the reagents themselves are also disclosed.
Patent CA-2233806-C (CA)
Inventor: MATHISEN ALLEN E
IPC: H04N5/232
Filed: 1998-03-31
Granted: 2004-10-12
Abstract: A method and apparatus for generating a viewport definition for a computer generated image using sensor information relating to a video camera's pan, tilt, zoom, and focus controls. The method generally comprises the steps of: (a) establishing reference points within an enclosed space which is to be used for recording images with the camera: (b) positioning the camera within the enclosed space relative to the reference points such that the camera position can be determined through triangulation with respect to the reference points: (c) developing position data through triangulation which identifies the camera position in a coordinate system relative to the reference points; (d) recording camera orientation data from sensors disposed to detect camera parameters defining the camera's pan, tilt, zoom, and focus settings; and (e) developing a database defining a viewport for the camera defined from a combination of the position data and the camera orientation data. Calculating the viewport (i.e., a nodal point or eyepoint, an orientation, a field of view, a focal plane distance, and a focus of expansion) as the camera moves is the ultimate goal of the camera tracking device.
Patent CA-2234303-C (CA)
Inventor: REID BRENT
IPC: E06C7/46
Filed: 1998-04-07
Granted: 2005-06-21
Abstract: A ladder anchor for stabilizing a ladder relative to the ground includes a pair of hooks attached to the lower rungs of a ladder, and a plurality of spikes extending below the base of the ladder for insertion into the ground. The spikes are arranged in parallel and lie in a common plane with the ladder when the ladder anchor is attached to the ladder. The hooks are attachable to the ladder by way of brackets, which are adjustable in length.      The ladder anchor holds the ladder in place when it is being used. The ladder anchor thus forms a rigid support between the ladder anchor the ground, preventing the base of the ladder from sliding or slipping relative to the ground. The ladder anchor also helps to prevent the ladder from tipping backwards away from an object against which the ladder is leaning.
Patent CA-2234514-C (CA)
Inventor: FOSTER RAYMOND KEITH
IPC: B65G25/06
Filed: 1994-03-31
Granted: 2000-02-01
Abstract: A reciprocating floor conveyor includes a plurality of floor members (2) divided into sets and groups. Each group includes at least two adjacent independent floor members (2). Each set includes one floor member (2) from each group. There are a plurality of linear motors (6), one for each set of floor members (2). Each motor (6) includes a rear end attached to a fixed support and an opposite forward end attached to one of the floor members (2) in the corresponding set. Each said one of the floor members (2) includes a top portion (94) and opposite side portions (96) defining a downwardly opening channel (98). A reinforcing bar (150) is attached to and extends forwardly from the forward end of each motor (6). The bar (150) is received into the channel (98) of the corresponding floor member (2) and is attached to the top portion (94) to reinforce the floor member (2). There are a plurality of transverse drive beams (104), one for each set of floor members (2). Each drive beam (104) is positioned below each floor member (2) of its set of floor members (2), and is attached to, and positioned below, the reinforcing bar (150) for its set of floor members (2).
Patent CA-2237297-C (CA)
Title: Process for the preparation of (1s,4r)-or(1r,4s)-4-(2-amino-6-chloro-9h-purin-9-yl)-2-cyclopentene-1-methanol
Inventor: BIRCH OLWEN MARY
IPC: C12P41/00
Filed: 1998-05-11
Granted: 2008-03-11
Abstract: A novel process for the preparation of (1S,4R)- or (1R,4S)-4-(2-amino-6-chloro-9H-purin-9-yl)-2-cyclo- pentene-1-methanol of the formula:   is described. This entails in a first stage acylating (~)- 2-azabicyclo[2.2.1]hept-5-en-3-one of the formula:   to give a (~)-2-azabicyclo[2.2.1]hept-5-en-3-one derivative of the general formula:   in which R1 denotes C1-4-alkyl, C1-4-alkoxy, aryl or aryloxy, the latter being reduced in a second stage to give a cyclopentene derivative of the general formula:   in which R1 has the stated meaning. The cyclopentene derivative V is then converted in a third stage biotechnologically into a (1R,4S)- or (1S,4R)-1-amino-4- (hydroxymethyl)-2-cyclopentene of the formula:   the latter being converted in a fourth stage with N-(2- amino-4,6-dichloro-5-pyrimidinyl)formamide of the formula:   into a (1S,4R)- or (1R,4S)-4-[(2-amino-6-chloro-5- formamido-4-pyrimidinyl)amino]-2-cyclopentene-1-methanol of the formula:   Finally, the compound of forumula IX or X is cyclized in a fifth stage in a known manner to form the final product of formula I or II.
Patent CA-2239967-C (CA)
Title: Runway reservation system
Inventor: NAKAJIMA TOSHIKAZU
IPC: G08G5/06
Filed: 1998-06-08
Granted: 2002-07-30
Abstract: Weather information is stored in a weather information storage unit.  Information of aircraft flight situation, flight plan, ATFM, and condition status is stored in an aircraft information-storage unit.  On the basis of information stored in the weather information storage unit and the aircraft information storage unit, arrival time of each of arriving aircraft and departing aircraft is predicted by an arrival time prediction unit and a departure time prediction unit.  The information of the estimated time thus predicted in stored in an estimated time of takeoff and landing storage unit.  On the other hand, on the basis of information stored in information storage units, runway use time is assigned to each of arriving aircraft and departing aircraft by-a takeoff and landing assignment unit in accordance with Control System Standards.  Runway reservation information thus obtained is stored in a reservation information storage unit.  The information stored in the reservation information storage unit is displayed on a screen by a reservation display unit.  The information stored in the estimated time of takeoff and landing storage unit is suitably displayed on the screen by a flight situation display unit.
Patent CA-2243797-C (CA)
Inventor: BRADENBAUGH KENNETH A
IPC: A47J27/21
Filed: 1998-07-24
Granted: 2005-12-06
Abstract: A water heater having a water tank and a electric resistance heating element extending into the water tank for heating water in the tank. The water heater includes a proportional band temperature controller for conducting electric power to the electric resistance heating element in bursts. Each burst of electric power is followed by a period during which the temperature controller does not conduct power to the electric resistance heating element. In one embodiment, each burst of electrical power lasts for about 95% or less of a cycle comprised of one burst of electric power followed by the period during which the temperature controller does not conduct electric power.
Patent CA-2245808-C (CA)
Title: Dispositif de communication mobile, procede de communication de donnees mobiles et support d'enregistrement
Inventor: OKAJIMA ICHIRO
IPC: H04W28/00
Filed: 1997-12-09
Granted: 2003-01-28
Abstract: Le PAD (1a) d'une section d'interface (13) terminale de données possède une fonction chargée lui permettant de sélectionner soit le protocole d'une couche liaison de données A, soit le protocole d'une couche liaison de données B. Selon le protocole de la couche liaison de données (A45) d'une section (11) terminale de données, une trame de données formatées provenant d'une couche supérieure et entourées de séquences de délimitation de trame (31) avec un schéma de bits spécifique, est normalement émise, et, lorsqu'il n'y a pas de données à transmettre au moment de la communication, une série de séquences (33) de délimitation de trame est émise ne donnant lieu à aucune transmission de données. Lorsqu'une séquence (33) de délimitation de trame ne donnant lieu à aucune transmission de données est émise à partir de la section (11) terminale de données, le PAD (1a) élimine une partie de la séquence (33) de délimitation de trame et n'envoie pas la séquence (33) à une section (12) radio. Ainsi, une partie ou la totalité de la séquence (33) de délimitation de trame n'est pas envoyée à une section radio, ce qui permet de réduire la consommation d'énergie d'un dispositif de radio mobile, etc., et d'utiliser efficacement le canal radio.
Patent CA-2251226-C (CA)
Title: Use of 2,5-dihydroxybenzenesulphonic derivatives in the manufacture of drugs for normalising the endothelial function and treating sexual dysfunctions, the vascular complications of diabetes and vascular disorders of endothelial origin
Inventor: ESTEVE-SOLER JOSE
IPC: A61K31/00
Filed: 1997-04-03
Granted: 2007-09-11
Abstract: The use of 2,5-dihydroxybenzenesulphonic derivatives of general formula (I), wherein R is H or SO3-, B is Ca++ or H2N(C2H5)2, n is 1 or 2, and m is 1 or 2, in the manufacture of drugs for normalising the endothelial function and treating sexual dysfunctions, the vascular complications of diabetes and vascular disorders of endothelial origin, is disclosed.
Patent CA-2264437-C (CA)
Inventor: FLORENZ HANS-JOERG
IPC: G05F1/575
Filed: 1999-03-03
Granted: 2001-12-04
Abstract: A voltage regulator circuit for generating a regulated output DC voltage from a non-regulated DC or AC voltage, comprises an input rectifier circuit for rectifying the non-regulated AC voltage and a series regulator, containing a gate-controllable transistor, which regulates the output voltage supplied to it by the rectifier to a first voltage value. The transistor of the series regulator is a field-effect transistor (20) which in the ON condition charges a charging capacitor (46), the charging voltage of which forms the regulated output voltage. Connected to the gate terminal (21) of the field-effect transistor is a first threshold circuit (26, 28, 30, 32) receiving the non-regulated DC voltage which applies to this gate terminal (21) a voltage turning OFF the field-effect transistor (20) as soon as the non-regulated DC voltage exceeds a predetermined threshold value. Furthermore, connected to the gate terminal (21) of the field-effect transistor (20) is a second threshold circuit (36, 38, 40, 42) receiving the regulated output DC voltage which applies to this gate terminal (21) a voltage turning OFF the field-effect transistor (20) as soon as the regulated output DC voltage exceeds a predetermined design value.
Patent CA-2270097-C (CA)
Inventor: OKAMOTO ATSUMU
IPC: B21C37/08
Filed: 1999-04-23
Granted: 2006-01-24
Abstract: It is an object of the present invention to provide a novel roll-forming method for steel pipes and equipment for same with which (1) the evidence that forming work in the FF forming method is mainly carried out at the cluster forming portion showing the poor formability is modified and improved without any deteriorating the advantage of the common-utilization of rolls in the FF forming method which employs basically the circular-bend method, and (2) the forming function at the breakdown forming portion is enhanced. Accordingly, the pinch-point formed by the upper and lower rolls is set at a boundary area between the target forming zone in the material's width direction and previously-formed zone or un-formed zone. The target forming zone is wound around a certain caliber of the upper roll on the bend-inner side, and bend-formed in such a way that the target forming zone is almost in non-contact with the lower roll. As a result, the formability is remarkably improved and occurrences of roll flaws and roll marks or buckling can be prevented.
Patent CA-2272220-C (CA)
Title: Electronic energy management system
Inventor: VOSS THOMAS R
IPC: G06F17/00
Filed: 1999-05-18
Granted: 2003-05-13
Abstract: An electronic energy management system is suitable for use with an energy distribution network that provides energy from an energy resource to user sites. A plurality of energy usage meters, at least one at each user site, monitors energy usage at each user site. The system comprises a data acquisition subsystem that acquires energy usage data from the energy usage meters.      The energy usage data comprises multiple increments of total energy usage over defined periods of time. An electronic data storage located at a central location remote from the energy usage meters stores the acquired energy usage data. An electronic communication subsystem provides user access to the stored acquired energy usage data from the electronic data storage.
Patent CA-2274518-C (CA)
Title: Apparatus and method for selectively diverting sheets
Inventor: HEILMAN ROBIN L
IPC: B65H29/58
Filed: 1997-07-25
Granted: 2003-12-30
Abstract: A guide apparatus and method are provided for selectively guiding sheet articles into a first, second or third conveying path. In a preferred embodiment, the first and second conveying paths are the upper (P1 ) and lower (P2) conveying paths, respectively, of a dual-deck accumulator (DDA) and the third conveying path is a divert path. The guide apparatus includes a guide member having a pair of spaced-apart divert plates (20 and 30) which are elongated and parallel so as to define a slot therebetween for passage of sheet articles (S1) therethrough. The divert plates are fixedly positioned with respect to one another and selectively pivotal in a first position for guiding sheet articles into a first conveying path (P1), a second position for guiding sheet articles in to a second conveying path (P2) and a third position for guiding sheet articles into a third conveying path.
Patent CA-2281603-C (CA)
Title: Disposable safety device for transferring blood
Inventor: DIETRICH EMMANUEL
IPC: B01L99/00
Filed: 1998-02-13
Granted: 2005-08-09
Abstract: The invention concerns a disposable safety device for transferring blood contained in a container characterised in that it consists of a hollow body (4) with a transverse median partition run through by a needle (8) bevelled at one of its ends.
Patent CA-2281807-C (CA)
Title: Method of treating a tumor
Inventor: RAKE JAMES B
IPC: A61K33/243
Filed: 1998-02-17
Granted: 2007-10-16
Abstract: In accordance with the present invention there is provided a method of treating a mammal having a solid tumor, the method comprising: a) administering to the mammal an effective amount of 3-amino- 1,2,4-benzotriazine 1.4-dioxide; b) administering to the mammal an effective amount of paclitaxel; and c) administering to the mammal an effective amount of a platinum complex. The method provides unexpected synergistic efficacy. The invention further provides a kit for treatment of a mammalian tumor comprising 3-amino-1,2,4-benzotriazine 1.4-dioxide, paclitaxel and a platinum complex.< /SDOAB>
Patent CA-2284291-C (CA)
Title: Improved insulated shipping container
Inventor: DERIFIELD RODNEY M
IPC: B65D81/38
Filed: 1998-03-25
Granted: 2006-01-31
Abstract: A shipping container (10) including an insulated body (12) having a cavity for holding a product (22) being shipped, and having one or more cavities for holding coolant (24) in a predetermined relationship to the product. The container (10) also includes an insulated cover (40) adapted to sealably engage an open end of the insulated body after product and coolant are received therein. The cover includes one or more blocks or prongs (42) extending therefrom that are adapted to slidably engage the coolant cavities and/or the product cavity to substantially minimize air spaces in the cavities and/or seal them. The insulated body (12) and cover (40) preferably are formed from injection molded polyurethane, wrapped in a plastic film and inserted into a cardboard shipping carton (60).</SDOAB >
Patent CA-2285805-C (CA)
Title: System for converting jet aircraft to parabolic flight operation
Inventor: MAHAFFEY MICHAEL L
IPC: F15B21/04
Filed: 1999-10-12
Granted: 2003-12-23
Abstract: A system and method is provided for rapidly reconfiguring a jet aircraft from a cargo or passenger configuration into a parabolic flight configuration.  In the parabolic flight configuration, a zero-gravity condition is created in the aircraft cabin to simulate a weightless atmosphere which can be provided as entertainment to paying customers. Various aspects of the invention include a hydraulic system design change which prevents loss of hydraulic function during a zero-gravity condition and a strap-down accelerometer which provides a visual indication of the parabolic flight condition. Additional interior modifications include removable padding areas, a dual-purpose interior gill liner, modified oxygen systems, handrail attachment fixtures, modified emergency lighting systems, and a palletized floor assembly.
Patent CA-2290816-C (CA)
Inventor: JACKSON BRUCE
IPC: C03B37/075
Filed: 1998-05-08
Granted: 2006-10-31
Abstract: Fine-grained aragonite precipitated calcium carbonate is produced on a commercial scale by seeding with a coarse-grained aragonite precipitated calcium carbonate. The coarse-grained seeding material is produced by interrupting, after the production of 0.1 to 0.6 g/L min. of calcium carbonate, the supply of carbon dioxide to the quicklime slurry early in the reaction to allow subsequent nucleation of the crystals and then continuing the supply of carbon dioxide at reaction rates of 0.1 g/L min. to 0.6 g/L min. This coarse-grained seeding material has a Blaine surface area which may be less than 30,000 cm2/g, the solids of which are 35 to 70 weight percent aragonite, and is added to subsequent batches as a slurry at about 1 weight percent, based on the total weight of the slurry of the material to be seeded. For the seeded batches, carbonation is carried out at reaction rates of up to 1.8 g/L min. at the commercial scale resulting in fine-grained aragonite product. This final seeded product need not be ground, has solids in which the weight percent of aragonite is greater than 90, has a median particle size between 0.30 to about 0.5 microns, a particle size distribution where about 60 to 70 weight percent are less than 0.5 micr on equivalent spherical diameter, and a Blaine surface area which may begreater than 35,000 cm2/g.