baber/WOPTO huggingface dataset:
Patent CA-2193075-C (CA)
Inventor: HOJNOSKI DAVID E
IPC: B65D39/16
Filed: 1994-06-16
Granted: 2003-09-23
Abstract: There is provided a new and useful combination of a bottle stopper and stopper-remover comprising cylindrical stopper means (10) of resilient material, the stopper means (10) having top, bottom and side surfaces and a deep well (14) extending into the stopper (10) from the top surface (I6); a hollow sleeve (30) in and substantially conforming in cross section to the well (14), the sleeve (30) having top and bottom ends and inner and outer surfaces; a series of protruding interference members (36) on the outer surface, at least one defeat member (46) on the inner surface (43, 44) spaced a predetermined distance from the top and bottom; a pair of openings (47) through opposite sides of the sleeve (30) adjacent the detent (46) on a side of the detent (46) remote from the top end; a pair of longitudinal slits (45) extending from respective ones of said openings (47) to a position spaced from said top end; and puller means (50) for insertion inro the sleeve (30), the puller means (30) comprising a top gripper member (52), an elongated stem (54) and a bottom locking means (56) the locking means (56) configured to cause the sleeve (30) to expand to allow passage through the detent (46) of the locking means (56) when the stem (54) is inserted into the top end of the sleeve (30), but to prevent withdrawal of the stem (54) once inserted; whereby when the stopper (10) is radially compressed, as by insertion into a neck (72) of a bottle, an interference fit occurs between the interference members (36) and the resilient surface of the well (14), such that, when the pulling means (50) has been inserted into the sleeve (30), upward pulling of the puller means (50) will cause the stopper (10) to be removed from the bottle by reason of interference between the locking means (56) and the detent (46).
Patent CA-2196016-C (CA)
Title: Increasing turbulent mixing in a uv system
Inventor: WHITBY G ELLIOTT
IPC: B01F5/00
Filed: 1997-01-27
Granted: 2001-01-02
Abstract: Turbulent mixing in a UV system is increased by positioning one or more ring-shaped devices, such as washers, at one or more predetermined locations on the exterior surface of each lamp unit in the system. The washers may have the same or different diameters. Turbulent mixing is also increased by retaining the upstream end of each lamp unit in a ring-shaped device, alone or in combination with washers positioned on each lamp unit exterior surface as described above.
Patent CA-2197436-C (CA)
Inventor: PRATSINIS SOTIRIS EMMANUEL
IPC: C01G23/07
Filed: 1995-08-25
Granted: 2000-05-02
Abstract: L'invention concerne un procédé de production en phase gazeuse de poudres de dioxide de titane présentant des caractéristiques très maîtrisées en ce qui concerne leurs phases cristallines et leurs surfaces efficaces. Selon ledit procédé, qui est, de préférence, mis en oeuvre dans un réacteur à flamme à diffusion laminaire, du TiCL¿4? en phase vapeur et de l'oxygène sont mélangés dans une zone de réaction qui est chauffée extérieurement. La poudre de dioxide de titane formée est ensuite recueillie. La source de chaleur utilisée est, de préférence, une flamme de combustible hydrocarboné (par example du méthane). Un dopant en phase vapeur (tel que du SiCL¿4?) peut être ajouté au mélange de réaction pour modifier de façon désirée les propriétés physiques du dioxide de titane produit. Selon un mode de réalisation particulièrement préféré, un champ électrique en couronne est produit à travers la zone où se fait la réaction de combustion (c'est-à-dire la zone de réaction). Les poudres de dioxide de titane, à haute teneur en anatase et présentant une grande surface efficace, obtenues selon ce procédé, constituent d'excellents photocatalyseurs. L'invention concerne également les produits obtenus selon le procédé présenté et leur utilisation comme photocatalyseurs. Le procédé selon l'invention peut également être utilisé pour produire d'autres poudres céramiques (telles que du dioxide de silicium et de l'oxyde stanique), ainsi que des poudres d'aliages ou de métaux pures.
Patent CA-2199077-C (CA)
Inventor: BUSCHHAUS MICHAEL C
IPC: B65H3/28
Filed: 1997-03-04
Granted: 2000-07-04
Abstract: A rotating separator disk is movable between sheet material articles in a stack of sheet material articles.  A variable speed drive which is connected with the separator disk and rotates the separator disk.  The variable speed drive is operable to vary the speed of rotation of the separator disk between a high speed and a low speed during each revolution of the separator disk.  First and second restrictor members engage a sheet material article in the stack of sheet material articles.  A suction applicator head is operable to disengage one sheet material article from the first restrictor member.  A leading edge of the rotating separator disk is then moved between the one sheet material article and an adjacent sheet material article. As this occurs, the speed of rotation of the separator disk is increased and the one sheet material article is disengaged from the second restrictor member by the separator disk.
Patent CA-2200124-C (CA)
Inventor: BAILLARGEON JAMES N
IPC: H01L33/30
Filed: 1997-03-17
Granted: 2000-04-18
Abstract: Heteroepitaxial growth of phosphorus-containing III/V semiconductor material (e.g., InGaAsP) on a non-planar surface (11) of a different phosphorus-containing III/V semiconductor material (e.g., InP) is facilitated by heating the non-planar surface in a substantially evacuated chamber to a mass-transport temperature, and exposing the surface to a flux of at least phosphorus form a solid phosphorus source. This mass-transport step is followed by in situ growth of the desired semiconductor material, with at least an initial portion of the growth being done at a first growth temperature that is not greater than the mass transport temperature. Growth typically is completed at a second growth temperature higher than the first growth temperature. A significant aspect of the method is provision of the required fluxes (e.g., phosphorus, arsenic, indium, gallium) from solid sources, resulting in hydrogen-free mass transport and growth, which can be carried out at lower temperatures than is customary in the prior art. An exemplary and preferred application of the method is in grating formation and overgrowth in InP-based DFB lasers.
Patent CA-2203783-C (CA)
Inventor: FUJIMOTO HISAYOSHI
IPC: B41J2/045
Filed: 1995-10-26
Granted: 2000-08-15
Abstract: An ink jet printhead of the present invention includes a plurality of printhead elements (1) each having a plurality of ink injecting holes (10), a flat flexible cord (2) electrically connected to the respective printhead elements (1), and ink distributing member (5) to supply the respective printhead elements (1) with ink. Each printhead element (1) has a head element body (11) made of a resin material, and the head element body (11) has a front wall portion (1a) in which the plurality of ink injecting holes (11) are formed. The head element body has side surfaces (11a) formed with a plurality of dented groove-shaped ink passageways communicating with the respective ink injecting holes (10), and each side surface supports a diaphragm (12) carrying a plurality of piezoelectric elements (13) corresponding to the respective ink passageways. The flexible cord (2) is inserted between neighboring printhead elements (1) and provided with a conductive wiring pattern (22) having output terminals (25) electrically connected to the piezoelectric elements (13) of the respective printhead elements (1).
Patent CA-2204955-C (CA)
Title: Weld root closure method for friction stir welds
Inventor: COLLIGAN KEVIN J
IPC: B23K37/06
Filed: 1997-05-09
Granted: 2005-07-12
Abstract: A method of root closure of friction stir welds in all types of stir weldable materials, especially difficult to weld materials, such as non-extrudable aluminum alloy 2024, 2014, 2090 and 7075. The method includes providing a backing device that has a recess, such as a groove or channel, sized to receive the tip of the pin of the welding tool and to contain the bead of the weld being formed. The workpiece rests on the backing device, with the proposed weld line aligned with the recess.  Thus, as the weld is formed, material is extruded into the recess, completing closure of the weld root, and forming a small bead on the rear side of the workpiece.  Optionally, this bead may be removed by a machining process. In one embodiment, the backing device is a plate with a channel machined in its surface so that the workpiece may be temporarily affixed to the plate, with weld line aligned with the channel, for welding. In an alternative embodiment, the backing device is a roller, mounted beneath the rotating pin of the friction stir welding tool, with a circumferential grove on its exterior surface, sized to receive the pin tip and contain the weld bead as the weld is being formed.
Patent CA-2206223-C (CA)
Title: Desulfurization and decarbonation process
Inventor: TANAKA HIROSHI
IPC: B01D53/75
Filed: 1997-05-27
Granted: 2000-07-11
Abstract: This invention provides a process for effecting desulfurization and decarbonation in two stages wherein an amine-containing absorbing solution is regenerated in a thermally advantageous way and the salts (such as calcium carbonate and calcium sulfate) formed during regeneration are effectively utilized.  More specifically, this invention provides a desulfurization and decarbonation process wherein a gas containing sulfur oxides and carbon dioxide is first treated in a desulfurization step so as to cause sulfur oxides to be absorbed in the form of calcium-sulfur oxide compounds; the gas is then treated in a decarbonation step so as to cause carbon dioxide and any sulfur oxides escaping from the desulfurization step to be absorbed in the form of amine salts; the absorbing solution containing the amine salts is treated in a regeneration step to liberate carbon dioxide therefrom; a part of the absorbing solution having liberated carbon dioxide is recycled to the decarbonation step for use as the absorbing solution; the remainder of the absorbing solution having liberated carbon dioxide is fed to a secondary regeneration step where it is treated with a basic calcium substance to regenerate the absorbing solution containing a basic amine compound and to form a solid containing calcium-sulfur oxide compounds and calcium carbonate.
Patent CA-2211048-C (CA)
Title: Method for preparing pyridine-2,3-dicarboxylic acid esters
Inventor: BESSARD YVES
IPC: C07D213/803
Filed: 1997-07-22
Granted: 2007-03-06
Abstract: A method is described for preparing pyridine-2,3-dicarboxylic acid esters of the general formula: (See formula I) wherein R is C1-6-alkyl, C3-6-cycloalkyl, aryl or arylalkyl, and R1 to R3, independently of one another, each represent hydrogen, C1-6-alkyl, fluorinated C1-6-alkyl, C1-6-alkoxy, (C1-6-alkoxy)-C1-6-alkyl or (C1-6-alkoxy)carbonyl. These are obtained from the corresponding 2,3-dichloropyridine, the corresponding alcohol ROH and carbon monoxide in the presence of a palladium-diphosphine complex and a weak base. Pyridine-2,3-dicarboxylic acid esters are herbicides or intermediates for the preparation of herbicides.
Patent CA-2211985-C (CA)
Title: Glass vial opener for liquid intravenous medications and liquid solutions
Inventor: DANKWARDT WILLIAM
IPC: B01L99/00
Filed: 1997-09-25
Granted: 1999-07-06
Abstract: The present invention is a device and method for breaking a glass vial. In particular,  the device is preferably composed of an apparatus capable of holding multi-sized glass vials in place while a cylinder apparatus is utilized to fit onto the vial neck such that the neck of the vial is cleanly snapped with the application of the appropriate amount of manual force, thus enabling the vial's liquid contents to be efficiently drawn out by syringe. The device also incorporates a means of holding the needle cap of the syringe and a means of ejecting the vial base and the severed vial neck for disposal after usage. The method of employing the device minimizes the manual contact required with the needle of the syringe, the glass vial, and the potentially hazardous liquid contents.
Patent CA-2212027-C (CA)
Title: Systeme et methode de facturation
Inventor: IWAMURA KEIICHI
IPC: H04N7/16
Filed: 1997-08-01
Granted: 2002-10-15
Abstract: Afin de permettre à un utilisateur de modifier à des fins personnelles une information fournie, l'invention présente une méthode et un système de facturation permettant de recevoir de l'information multimédia ainsi que des données de facturation et de modification de ladite information multimédia. Les données de facturation reçues et les données pécuniaires qui sont sur un support permettent de vérifier si ladite information multimédia peut être utilisée ou non. Les données pécuniaires et les données de modification reçues permettent de vérifier si l'information multimédia peut être modifiée ou non.
Patent CA-2213321-C (CA)
Inventor: BROWN DAVID AMOS
IPC: G06F3/16
Filed: 1997-08-18
Granted: 2000-05-16
Abstract: An accessory connector and adapter assembly that utilizes a connection to the reference voltage line of the interface between a personal computer and its keyboard or other accessory, thereby avoiding the need to provide an independent power supply circuit for peripheral devices and accessories such as microphones, speakers, and the like. The adapter assembly is configured with a first interface having, by way of illustrative example, a male connector portion dimensioned for insertion into the keyboard port of a personal computer and a female connector portion dimensioned to accommodate the male termination of a conventional keyboard cable. The adapter assembly further includes a second interface for providing power to the one or more external peripheral devices. By way of illustrative example, the second interface may include one or more jacks, male or female, to accommodate the terminating connector of a cable associated with one or more audio speakers and/or a loudspeaker. A reference voltage terminal within the first interface is electrically connected to the jack(s) of the second interface to thereby provide power to the external peripheral device(s).
Patent CA-2214742-C (CA)
Title: System and method for contraband detection using nuclear quadrupole resonance
Inventor: MOELLER CHARLES R
IPC: G01R33/387
Filed: 1996-03-05
Granted: 2008-05-20
Abstract: A system for detecting a target substance within a class of explosives and narcotics containing quadrupolar nuclei through the use of nuclear quadrupol e resonance (NQR). The system applies an RF signal to a coil (34) to excite the substanc e under test. If the target material is present, an NQR signal will be picked up by the same coil. That signal is compared with known NQR signals in frequency and amplitude. A signal is displayed in an appropriate way if a threshold value of the NQR signal is equalled or exceeded. The empty coil is statically tuned by means of adjusting the location or capacitance values, or both, of static tuning capacitors (102) in the coil. The coil is tuned after the specimen is inserted into the coil by means of an auto-tune feature (36). Effective RFI shielding (37) is provided to prevent external contaminating signals from being detected by the coil and to prevent RF signals from escaping from the scanner. The invention also includes the method for performing tests with the system.
Patent CA-2217018-C (CA)
Title: Procede et dispositif permettant d'effectuer des expositions iteratives
Inventor: OUDERKIRK ANDREW J
IPC: G02C13/00
Filed: 1996-03-29
Granted: 2006-10-17
Abstract: Système d'ablation par projection d'un laser excimère assurant un éclairage du substrat qui est moins important que l'illumination nécessaire à l'ablation complète de cette structure. Le dispositif assure ensuite le déplacement du substrat selon une distance inférieure au champ de l'image au niveau de ce substrat puis fournit un niveau supplémentaire d'illumination. Il continue de déplacer le substrat et fournit une nouvelle illumination jusqu'à ce que les structures soient entièrement enlevées. Ce procédé et ce dispositif permettent de réaliser dans de meilleures conditions un processus itératif utilisé de préférence pour obtenir des structures répétitives ou tridimensionnelles uniformes.
Patent CA-2220995-C (CA)
Title: New derivatives of substituted 7,12-dioxa-benzo¬a|anthracenes, their preparation process and the pharmaceutical compositions they contain
Inventor: RENARD PIERRE
IPC: A61K31/357
Filed: 1997-11-06
Granted: 2002-10-08
Abstract: 7,12-Dioxabenz(a)anthracene derivatives of formula (I) and their isomers and addition salts are new: R1 = H or OR; R = H or 1-6C alkyl (optionally substituted by aryl or heteroaryl); R2 = H, halo, OH, 1-6C alkoxy, CHO, CF3SO3, CN, 2-7C alkyloxycarbonyl, aryloxycarbonyl, NRa'Rb' or BNRa''Rb''; Ra', Ra'' = di(1-6C alkyl)amino(1-6C alkyl); or Ra'' = 1-6C alkyl optionally substituted by OH; Rb', Rb'' = H or 1-6C alkyl; B = CO or CH2; X = N (optionally substituted by Rc') or X'; X' = CR3; Rc' = 1-6C alkyl; R3 = H, 2-7C alkoxycarbonyl or BNRa''Rb'' or CX'R2 = a group of formula (a): Y = N or CR4; R4 = H or OR''; R'' = H, 1-6C alkyl (optionally substituted by OH), aryl or heteroaryl; aryl = Ph or naphthyl (optionally substituted by halo, 1-6C alkyl, OH, 1-6C alkoxy or trihalomethyl); heteroaryl = mono- or bicyclic aromatic group containing 1-2 heteroatoms comprising O, S and/or N (optionally substituted by halo, 1-6C alkyl, OH, 1-6C alkoxy or trihalomethyl); provided that when X = N and Y = CH, or when X = CH and Y = N, or when X=Y = CH, then R1 and R2 are not both H. N2-(7,12-dioxa-3-hydroxybenzo(a)anthracene-5,6-maleimido)-N1,N1-dimeth ylethylenediamine hydrochloride is specifically claimed.
Patent CA-2221717-C (CA)
Inventor: VOGEL EDMOND
IPC: B01J2/16
Filed: 1997-12-16
Granted: 2005-03-29
Abstract: A process is claimed for the manufacture of porous ammonium nitrate granules using a rotary drum granulator with a fluidised bed. Caps of solid ammonium nitrate are introduced and a solution of 94 - 98% ammonium nitrate is sprayed at 135 - 170 degrees C. Part of the water in the course of granulation is removed by the heat of crystallisation of the nitrate and an airflow blown under the bed.The remaining water is eliminated in a drying operation after granulation. Also claimed is the installation for the process.
Patent CA-2222118-C (CA)
Inventor: ABHAU CHERYL L
IPC: C08L23/16
Filed: 1997-11-25
Granted: 2002-05-07
Abstract: Embossed sheets having improved grain retention can be made from a polyolefin composition containing a propylene polymer material and a partially crosslinked thermoplastic olefin elastomer composition. Large parts such as automobile door and instrument panels can be formed from these sheets.
Patent CA-2223034-C (CA)
Inventor: STARNES ROBERT L
IPC: A01N63/50
Filed: 1996-05-30
Granted: 2008-01-08
Abstract: This invention is directed to a method for obtaining a factor which potentiates the pesticidal activity of a Bacillus related pesticide, a chemical pesticide and/or a virus with pesticidal properties.
Patent CA-2224522-C (CA)
Inventor: HODGKINSON IAN
IPC: C02F1/58
Filed: 1996-06-27
Granted: 2006-12-05
Abstract: La N-phosphonométhylglycine (glyphosate), ou un sel ou une forme ionique de celle-ci, est éliminée d'un mélange aqueux tel qu'un courant effluent dans lequel elle est présente par addition au mélange d'ions capables de former un sel complexe de glyphosate insoluble ou partiellement soluble, puis par élimination de ce sel du mélange. Les ions ferriques (III) conviennent particulièrement bien à cet effet. Dans l'un des procédés intégrés préférés, le glyphosate est récupéré dans du sel complexe de glyphosate.
Patent CA-2227498-C (CA)
Title: Sound processing circuit
Inventor: SUZUKI TATSUYA
IPC: H04S5/02
Filed: 1998-01-20
Granted: 2004-06-01
Abstract: A sound processing circuit for distributing low frequency signal components of multichannel audio signals. The sound processing circuit filters low frequency signal components from the digital audio signals of m (m <= n) specified channels using an exclusive channel having low frequency signals and n (n > 1) multiple independent channels, and outputs the filtered low frequency signal components as part of a low frequency signal channel. The sound processor circuit cornprises m high-pass filters to receive digital audio signals from m of specified channels, and allows the signal components having a frequency higher than a cut-off frequency fc to pass; m first coefficient multipliers receive the digital audio signals of the m of specified channels and multiply the signals by a multiplication coefficient ai (0 < ai < 1); a second coefficient multiplier receives the digital audio signal of the exclusive channel, and multiplies the signal by a multiplication coefficient aL (0 < aL < 1); an adder for adding each output of the m first coefficient multipliers and the output of the second coefficient multiplier to produce a synthetic audio signal; and a low pass filter which receives the synthetic audio signal from the adder, and allows the signal components having a frequency lower than the cut-off frequency fc to pass.
Patent CA-2227945-C (CA)
Title: Knitted protective fabric and garments made therefrom
Inventor: ROSEN ARTHUR
IPC: D04B1/14
Filed: 1998-01-27
Granted: 2006-04-18
Abstract: A protective knitted fabric, and garments made therefrom, having superior resistance to wear and abrasion, as well as good flexibility and stretchability enabling the fabric to be conformed to the structure intended to be protected. The knitted fabric and garments made therefrom comprise a monofilament polymer having a gauge of 0.03 to 0.08 inches interknitted to form a structure of repeated interconnected loops or coils. The structure may be honeycomb-like in appearance . The monofilament polymer may be from a material selected from the group consisting of polyamide, Teflon, polyester or viscose.
Patent CA-2233322-C (CA)
Inventor: LYNDE GERALD D
IPC: E21B29/00
Filed: 1997-08-20
Granted: 2004-11-09
Abstract: The present invention provides a downhole cutting tool (20) for cutting materials at a worksite in a wellbore (22). The cutting tool includes a cutting end (32) that is adapted to discharge a high pressure fluid therefrom. A pow er unit (34) in the tool includes a plurality of serially arranged pressure stages, wherein each such stage increases the fluid pressure above its preceding stage. The high pressure fluid is discharged through the cutting end as a je t stream. A pulsar (35) in the tool is provided to pulse the fluid before it i s discharged through the cutting end. A control unit (36) controls the positio n and orientation of the cutting end relative to the material. The downhole cutting tool can be programmed to cut materials according to predetermined patterns. The cutting tool may be utilized to cut support members of offshor e structures, either from the inside or the outside of such support members. In a preferred method, the cutting tool is utilized to remove the earth en material from around the embedded support members and then to cut the support members below the sea bed. The cutting tool may be utilized in cutting nested pipes after pulling a selected length of such nested pipes fr om the wellbore.