baber/WOPTO huggingface dataset:
Patent CA-2229619-C (CA)
Inventor: KOSKINAS JOHN
IPC: F16K5/20
Filed: 1996-09-05
Granted: 2006-11-14
Abstract: A self-adjusting ball valve assembly having a ball valve body, a shaft assembly or shaft mounted to the ball valve body, a spherical segment carried by the shaft, and elements for adjusting the position of the shaft. The ball valve body (12) has a port (10a, 10b) for fluid transit therethrough and a first through passage, located concentrically about a body axis. The shaft (34) rotatably mounts through the first through passage along a shaft axis (16), which is maintained parallel but offset from the body axis (42). The spherical segment (14) mounts to the shaft and radially extends from the shaft axis within the ball valve body, and includes a portion (14b) for sealing engagement with the port, upon rotation of the shaft through a predefined angle. The adjustment elements automatically adjust the offset between the body axis and the shaft axis to enhance the sealing engagement between the spherical segment and the port. A drive unit coupled to the shaft carriage reactively translates the shaft as the ball segment rotates enhancing seating of the valve and reducing the load on wear surfaces during valve operation. The segment is keyed to the shaft with dowel pins (36) and the shaft itself may be locked against rotation with pins that are selectively moved into cross-apertures. A shear coupling prevents damage to the shaft or drive unit when the shaft is locked.
Patent CA-2230357-C (CA)
Inventor: NORLIN LARS PETER
IPC: B62D29/02
Filed: 1998-02-24
Granted: 2006-10-03
Abstract: An engineering wood based laminated panel for use as structural flooring for vehicle decking systems replaces a traditional hardwood decking and is cheaper plus having superior structural and wear properties. The panel has a plurality of layers in order down from a top surface, comprising a surface layer having at least two high density wood veneer plies oriented parallel to one side of the panel, a load distribution layer having at least one high density wood veneer ply cross oriented to the one side of the panel; a core layer having from about 8 to 14 wood veneer plies oriented parallel to the one side of the panel with centre plies of the core layer being high density wood plies, and a resin impregnated reinforcement layer.
Patent CA-2243206-C (CA)
Title: Tubular fallopian sterilization device
Inventor: KERMODE JAMES R
IPC: A61B17/12
Filed: 1998-07-16
Granted: 2007-11-06
Abstract: An apparatus and method for human female sterilization. The apparatus includes an occlusive device configured from an elongate tubular member having a central lumen and a flange formed at the proximal end. The occlusive device is formed with a plurality of flexible ribs configured to provide a plurality of seals within the interstitial portion of a Fallopian tube. A valve member is preferably disposed within the lumen of the tubular member. The occlusive device may further include a plurality of copper rings disposed between the ribs of the tubular member, or ribs may be coated with a material containing copper. The method includes placing the occlusive device within a delivery catheter having a lumen and placing the distal end of the delivery catheter within the uterus. After the occlusive device and distal end of the delivery catheter are placed in the Fallopian tube, the occlusive device is removed from the delivery catheter and ejected into the Fallopian tube. In addition, a guide wire may be inserted through the vagina and into a Fallopian tube of the uterus such that the occlusive device and the delivery catheter are threaded over the guide wire.
Patent CA-2244765-C (CA)
Inventor: LE LETTY RONAN
IPC: H01L41/107
Filed: 1998-08-12
Granted: 2008-10-21
Abstract: The transformer (1) includes a body (2) made of piezoelectric material having an outer lateral surface (E) in the shape of a circular cylinder. Primary electrodes (5, 7, 10, 12, 17, 19, 22, 24) are arranged on the body (2) so that, when the primary voltage (Up) which is applied thereto has a determined frequency (fr), the outer lateral surface (E) alternately takes the shape of a first and a second elliptical cylinder, the major axes of these latter being perpendicular to each other and perpendicular to the axis (A) of the circular cylinder. This vibration mode of the body (2) has a lower fundamental resonance frequency than that of the vibration mode of known transformer bodies having the same space requirement. The transformer (1) is thus well suited to being used in devices where the available space is limited for providing a relatively high AC voltage but having a relatively low frequency.
Patent CA-2245621-C (CA)
Inventor: PATTERSON HAROLD E
IPC: F16F3/10
Filed: 1998-08-14
Granted: 2007-03-06
Abstract: An isolation component for vibratory equipment such as a vibratory trough or feeder includes an isolation spring for supporting the dynamic load of the equipment, and a damper element, preferably an elastomeric ring, arranged against an end of the isolation spring. The damper element prevents excessive motion of the isolation spring due to the vibratory equipment's operating frequency being close to any of the natural frequencies of the bending mode of the isolation spring by applying an opposing load to any such motion. The damper element is preferably an elastomer ring and is arranged along an axis of the support spring. A connector extends from a first end of the isolation spring, adjacent the damper element, toward and past a second end of the isolation spring and is connected to the vibratory equipment. The second end of the isolation spring is supported by a housing supported by external structure such that the weight and dynamic load of the equipment compresses and expands the isolation spring, and excessive expansion of the support spring acts on damper element which is braced against the housing.
Patent CA-2245622-C (CA)
Title: Web tension equalizing roll and tracking apparatus
Inventor: HARRIS J C
IPC: B21B39/00
Filed: 1996-12-05
Granted: 2003-06-03
Abstract: An equalizing roll and web tracking apparatus to be used in manufacturing for providing equal tension across a web during winding operations. The equalizing roll (10) utilizes a common axis shaft (12) mounted horizontally on two bearings (16) or clamped rigid supports (17) allowing for rotation. Mounted in the center of the shaft is a bearing assembly (18) having convex and concave portions (20, 22) disposed within a sleeve (26). The bearing assembly is centrally mounted inside a hollow cylinder or roll (30) machined to be in balance with respect to the centrally disposed bearing assembly. The equalizing roll tracking apparatus (100) utilizes an adjustable control arm assembly (102) having a pair of adjustable pivots (134, 136) with steering arms (140) linked to sensor arms (106). The distal ends (112) of the sensor arms are in contact with the edges of a web of material (116).
Patent CA-2247824-C (CA)
Inventor: LEWANDOWSKI SYLVETTE
IPC: C02F3/34
Filed: 1997-02-03
Granted: 2007-04-24
Abstract: This aerobic waste pretreatment process comprises inoculating a milk industry effluent with a mixture of bacteria and yeasts both classes of microorganisms capable of living an growing in symbiosis in the effluent, the population of the bacteria being, in most cases, several times greater than the population of the yeasts, maintaining the temperature and pH of the inoculated effluent between 0 °C and 50 °C and between 1.7 and 9, aerating the effluent while varying, if necessary, the pH at maximum rate of 1.5 pH units per minute and also, if required, modulating the aeration of the inoculated effluent at a maximum rate of 130 micromoles of oxygen per minute. A biomass is obtained which has a good nutritional value suitable for animal feed.
Patent CA-2259346-C (CA)
Title: Mine fire and emergency warning stench injector
Inventor: KITCHING WAYNE WILLIAM
IPC: E21F11/00
Filed: 1999-01-15
Granted: 2008-12-09
Abstract: A mine fire and emergency warning device for the protection of personnel working underground. The device will inject a (rotten egg) stench into fans blowing fresh air to workers underground, as well as into compressed air systems used to operate drilling equipment underground. The automated device disperses the stench at a metered rate, and simultaneously to a multitude of sites, which may be kilometres apart.
Patent CA-2271702-C (CA)
Title: Washing machine
Inventor: MYERSCOUGH MARTIN WILLIAM
IPC: D06F37/04
Filed: 1997-11-07
Granted: 2005-06-07
Abstract: Washing machine having a rotatable inclined drum which contains the water for washing items together with the items to be washed. Outlet holes (5) are provided on the back end (7) of the drum so that at least one of the holes (5) is below the front opening of the drum when the drum is at any angular position. Due to the inclination of the drum, water in the drum will flow to the back of the drum under gravity, and will be discharged through the outlet holes (5). Collectors (18) may additionally be provided to lift the water to the holes (5) where these are not provided at the side of the rear end (7) of the drum.
Patent CA-2282299-C (CA)
Title: Enhanced video programming system and method for incorporating and displaying retrieved integrated intermet segments
Inventor: SPIVACK NOVA T
IPC: H04N7/16
Filed: 1997-03-07
Granted: 2004-09-21
Abstract: A system for integrating video programming with the vast information resources of the Internet. A computer-based system receives a video program and uniform resource locators (URLs). The URLs, the effective addresses of locations or Web sites on the Internet, are interpreted by the system and direct the syst em to the Web site locations to retrieve related Web pages. Web pages related to the video programming appear upon receipt through the user's browser. The video progra m signal can be displayed on a video window on a conventional personal compute r screen. The actual retrieved Web pages can be time stamped to also be displayed, on another portion of the display screen, when predetermined related video content is displayed in the video window. The computer-based system can receive the URL s embedded in the video program or directly through an Internet connection, at times specified by TV broadcasters in advance. The system interprets the URLs and retrieves the appropriate Web pages. The Web pages are synchonized to the video content for display in conjunction with a television program being broadcast to the user at that time. This system allows the URLs to be entered for live transmission to the user.
Patent CA-2282769-C (CA)
Inventor: NOTHDURFT KARL F
IPC: A63B69/36
Filed: 1999-09-24
Granted: 2000-09-12
Abstract: Improvement in a golf training device having a guide bar having a horizontally disposed straight portion thereof for guiding the back and forth movement of the shaft of a golf club while a golfer practices therewith, the improvement being in the arrangement supporting the guide bar, such arrangement utilizing the weight of the golfer to steady the position thereof during use of the golf training device and including a foot mat upon which the golfer can stand, the foot mat having top and bottom surfaces, a straight front edge and front corners at opposite ends of the front edge, a pair of support structures at such front corners, respectively, which upstand from the top surface of the foot mat for gripping opposite ends of the guide bar, respectively, to hold it in place, the support structures holding the straight portion of the guide bar disposed above such top surface and forwardly of such front edge, the golfer being able to stand upon the foot mat behind the pair of support structures, whereby his weight steadies the position of the guide bar during use of the golf training device.
Patent CA-2288647-C (CA)
Inventor: VILLA MARCO
IPC: C07B63/02
Filed: 1998-05-04
Granted: 2006-07-18
Abstract: A method for the removal of heavy metals from solutions of organic compounds by treatment with cysteine or with an N-acylcysteine is described. Organic compounds with a content of heavy metal, for example palladium, particularly low and suitable for the preparation of compounds with pharmacologic activity can be isolated from the resultant solutions.
Patent CA-2297685-C (CA)
Inventor: ROLLER JOSEPH A
IPC: E01F15/14
Filed: 1998-08-13
Granted: 2001-11-27
Abstract: L'appareil (100) est un composant semi-cylindrique (200) présentant un corps délimité par une paroi, une tête et une base. La paroi présente au moins une face plate et entoure un intérieur creux. Il est prévu, sur au moins une face plate, une découpure destiné à recevoir un support de construction. Il est également prévu des moyens (510, 520) pour la fixation du composant profilé sur ledit support et pour l'appui rigide d'un composant sur sa face plate à l'encontre d'un second composant (300), sur sa face plate, lorsque deux composants sont présents. De préférence, chaque composant présente une pluralité de découpures absorbant les chocs, chacune d'elles présentant une ouverture, une base et une paroi s'étendant de la base vers une entrée de l'ouverture. Ces découpures ont pour fonction de redistribuer l'énergie d'un choc en cas de collision entre l'appareil et un objet en déplacement. De préférence, chaque composant est formé par moulage par rotation d'une résine de matière plastique.
Patent CA-2298319-C (CA)
Title: Extruded permanent form-work for concrete
Inventor: RONDIN CLIFFORD
IPC: E04B2/86
Filed: 2000-02-09
Granted: 2007-10-02
Abstract: A set of extruded panels is provided which can be assembled on site to create a permanent form-work for concrete. The set includes inside and outside extruded side wall panels which are arranged to be connected edge to edge to form inside and outside walls. Longitudinally spaced connecting wall panels span between the inside and outside walls at spaced positions across the width of the walls to hold the walls apart and define a hollow interior therebetween including a plurality of interconnected cells with a plurality of holes for communication of concrete and reinforcing bars between each cell and the next. Each connecting wall panel has T-shaped connectors at each edge for attachment to corresponding C--shaped receptacles on the side wall panels. Rigid foam insulation is inserted at the outside wall. The inside wall panels are arranged to support without bowing cast concrete poured into the interior within each cell and a support wall identical to the connector walls spans between the inside and outside walls to hold the panels against bowing.
Patent CA-2298944-C (CA)
Title: Intermediates for synthesis of vitamin d
Inventor: DANIEWSKI ANDRZEJ ROBERT
IPC: B01J23/72
Filed: 2000-02-18
Granted: 2009-01-13
Abstract: The invention relates to an improved process for preparing [(3aR,4S,7aS)-4- bromooctahydro-7a-methyl-1H-indene-1,5-dione]. (S)-(+)-2,3,7,7a-tetrahydro-7a- methyl-1H-indene-1,5(6H)-dione is reduced by reaction with diisobutylaluminum hydride and hexamethylphosphoric triaminde in the presence of a catalyst of the formula R-Cu, wherein R is (see formula I) and R1, R2 and R3 are each, independently, selected from the group consisting of C1-7 alkyl, phenyl, phenyl substituted by at least one C1- 4 alkyl group, benzyl, or benzyl substituted by at least one C1-4 alkyl groups to form a reductate. The reductate is then treated with a bromine-containing electrophile to yield (3aR,4S,7aS)-4- bromooctahydro-7a-methyl-1H-indene-1,5-dione.
Patent CA-2299196-C (CA)
Inventor: KORTE JORN
IPC: B60K15/00
Filed: 2000-02-16
Granted: 2006-05-30
Abstract: For determining the adequate perviousneas of venting tube nipples (4) on fuel tanks (3) made of plastics material a test duct (12) is connected to the nipple (4) and air drawn into the test duct (12) from the tank (3). From measuring the partial vacuum of e.g. approx. 5 mbar or the volume flow rate in the test ducts (12) it can be determined whether the nipple (4) and its joint (9) to the tank (3) are sufficiently permeable. This test is very precise and silent and needs only little consumption of compressed air. Thereby the load on the sealing seat (14) between the test duct (12) and nipple (4) is only slight.
Patent CA-2301506-C (CA)
Inventor: ALBERTSEN HENRIK
IPC: F03D1/06
Filed: 1998-09-04
Granted: 2008-10-14
Abstract: With conventional windmills the wing blades used have a certain resilient flexability which, in connection with "front runners", implies that the wings in strong wind are bent inwardly towards the mill tower, i.e. the wing rotor should be placed with a required safety spacing from the mill tower. An associated forward displacement of the entire rotor involves high costs and has already been avoided in various unsuccessful manners. The invention provides for an improved solution of the problem in disclosing that the wing blades, per se, are designated with such a forwardly curved configuration that the wing tips, when the wings are mounted in a conventional manner on the wing hub, will be located with increased spacing from the side of the tower.
Patent CA-2303757-C (CA)
Inventor: CROCKER LAWRENCE WILLIAM
IPC: E06C7/16
Filed: 2000-04-04
Granted: 2006-05-30
Abstract: Scaffolds usually are large structures consisting of a framework of detachable light tubular members that support a platform. A less complicated platform support, for use with spaced-apart ladders, consists of four members, three of which are adapted so as to be capable of connection to adjacent rungs of a ladder. Each of these three members are attached to bushing-bearings A fourth member is an axle around which all three members can turn in an arc, independently. Two of these three members, horizontal to the ground, support one end of a plank, used as a platform or walkway. A third, a vertical member, supports two horizontal members and prevents transverse movement of a platform or walkway.
Patent CA-2303960-C (CA)
Title: Hitch control system with adjustable slip response
Inventor: LIVDAHL RICHARD JAMES
IPC: A01B63/111
Filed: 2000-04-06
Granted: 2003-02-25
Abstract: A vehicle/implement hitch control system is responsive to a wheel slip signal indicative of the slippage of the driven wheels of the vehicle. The control system generates an integrated slip signal using an integration function, generates a proportional slip signal using a proportional function, and generates a combined slip signal as a combination of the integrated slip signal and the proportional slip signal. An operator-controllable slip response adjuster generates slip response signals. A hitch control signal is generated as a function of the slip response signal and the combined slip signal, so that the operator can vary the response of the hitch control signal to the integrated slip signal, to a mixture of the integrated slip signal, and to various multiples of the proportional slip signal only.
Patent CA-2317308-C (CA)
Title: An optical waveguide element, a three-dimensional optical waveguide circuit and an optical system
Inventor: MORITA SHINZO
IPC: G02B6/32
Filed: 2000-08-29
Granted: 2005-01-25
Abstract: An optical waveguide element has plural spherical bodies arranged in straight or curve with diameters of not more than 100 µm made of transparent uniform glass. The optical waveguide element may have plural spherical bodies arranged in straight or curve as are viewed from their ends with diameters of not more than 100 µm made of transparent uniform glass.
Patent CA-2322093-C (CA)
Inventor: GRACIK CHARLES S
IPC: C08G18/48
Filed: 2000-10-02
Granted: 2009-09-29
Abstract: A soft, transparent and processable thermoplastic polyurethane resin suitable in optical application is disclosed. The resin is the product of reacting a diisocyanate, a chain extender, and a mixture of polyether polyols. The mixture of polyether polyols comprise (A) a C4 polyether polyol and (B) a C2-C3 polyether polyol where the weight ratio A/B is in the range of about 85/15 to 15/85.
Patent CA-2327591-C (CA)
Title: Desulfurization of exhaust gases using activated carbon catalyst
Inventor: UMEHARA YOICHI
IPC: B01J31/06
Filed: 1999-04-06
Granted: 2005-07-05
Abstract: Intended is to improve the activity and stability of an activated carbon catalyst for use in recovering and removing sulfur oxides contained in exhaust gases as sulfuric acid using a catalytic oxidation. An activated carbon is mixed with a fluororesin and the resultant mixture is kneaded with application of a shearing force, and is molded into a given shape such as a granule, a plate or a cylinder, to thereby impart water repellency to the surface of the wall of a gap formed between activated carbon particles. When exhaust gases are flowed through a tower packed with this catalyst, it is preferred that the gases ar e flowed downwards, and that use is made of an activated carbon catalyst formed into a honeycomb shape which is composed of planes parallel to the direction of a gas flow mentioned above. Introduction of dilute sulfuric acid or water from the top of the tower to wash the surface of the activated carbon catalyst is effective for maintaining high activity and allows a catalyst layer to avoid closing or being contaminated even when exhaust gases contain dust.
Patent CA-2338672-C (CA)
Inventor: COREY JEFFREY S
IPC: B60R5/00
Filed: 2001-02-27
Granted: 2007-10-02
Abstract: A storage compartment for a vehicle capable of being coupled to a trailer via a coupling. When in a coupled state, a space is defined between the trailer and the vehicle. The space includes a swing clearance area for the trailer. The swing clearance area is bounded by a front portion of the trailer, and an arc traversed by the front portion of the trailer, about the coupling, within the space when the vehicle and the trailer are combined and in transition between a straight configuration and a turning configuration. The storage compartment is adapted to attach to the vehicle within the space such that at least a portion of the storage compartment extends rearward beyond a forwardmost point on the arc, but without extending into the swing clearance area.
Patent CA-2338899-C (CA)
Inventor: SOUVIE JEAN-CLAUDE
IPC: C07D209/44
Filed: 2001-02-16
Granted: 2007-07-24
Abstract: L'invention concerne un procédé de synthèse industrielle de l'isoindoline pa r hydrogénation catalytique du phtalonitrile. Selon l'invention, on soumet une solution de phtalonitrile dans le tétrahydrofurane, dans un mélange tétrahydrofurane/eau ou dans le diméthoxyéthane à une pression d'hydrogène comprise entre 100 et 180 bars, à une température comprise entre 30 et 100.degree.C et en présence de Pt/C à 5 %. L'isoindoline ainsi obtenue est utile pour la synthèse de l'acide 2-(S)-benzyl-4-oxo-4-(cis- perhydroisoindol-2- yl)-butyrique, de ses sels pharmaceutiquement acceptables et de ses hydrates .
Patent CA-2348327-C (CA)
Inventor: WU ARTHUR
IPC: B25B13/12
Filed: 2001-05-24
Granted: 2005-09-20
Abstract: An adjustable wrench adjustable wrench includes a frame, having a handle, a fixed jaw and a track at one end of the handle.      An adjusting worm pivoted to the frame for free rotation. An adjustable jaw, having one end received in the track and meshed with the adjusting worm for moving relative to the fixed jaw upon rotating the adjusting worm. Two spaces defined at the two sides of the adjustable jaw within the track. At least one packing device provided in each of the two spaces, having one end fastened to the adjustable jaw and the other end being against the frame.