baber/WOPTO huggingface dataset:
Patent CA-2163282-A1 (CA)
Title: Threaded joint for oil well pipes
Inventor: YAMAMOTO MIYUKI
IPC: E21B17/042
Filed: 1995-11-20
Abstract: A threaded joint for an oil well pipe having (1) a tapered threaded having roughly the shape of a buttress thread, (2) a pin having a male thread and a box having  a female thread, (3) a seal and a torque shoulder, characterized in that (i) the load flank angle of the threads is -20 or greater and less than 0, the stab flank angle is greater than 30 and at most 60 (ii) there is a positive amount of interference between the male threads and the female threads, and (iii) during and at the completion of make-up, the load flanks and the stab flanks are contacting each other, and there is a gap between the crests and the roots.
Patent CA-2164125-A1 (CA)
Title: Twin rotor expansible/contractible chamber assembly
Inventor: GENNARO MARK A
IPC: F02B53/00
Filed: 1995-03-29
Abstract: Apparatus defining an expansible/contractible chamber includes a housing having a first housing portion and a second housing portion. A rotor rotates within the first housing portion in one direction while a block rotates in the second housing portion in an opposite direction. A vane disposed on the rotor registers with a recess in the block and defines with the block the chamber. The apparatus can function as an engine, a turbine, a pump, a compressor, or a vacuum pump. An associated method includes the steps of introducing a fluid into the chamber, rotating the rotor and associated vane in order to vary the volume of the chamber and performing work relative to the fluid in the chamber.
Patent CA-2165989-A1 (CA)
Title: Arrangement for a can with discharge upper opening
Inventor: GUARDA MANOEL JOSE
IPC: B65D39/02
Filed: 1995-04-28
Abstract: Arrangement for a can with discharge upper opening, said cans having an upper wall (11), provided with an opening (12) and a closing seat (12a), wherefrom a tubular wall (17) with a free end (18) is downwardly projected; a lid (20) having a peripheral edge (21) to be seated onto the closing seat (12a), the free end (18) of the tubular wall (17) being curved towards the inside of the central opening (12) and upwardly, till it reaches a position adjacent to said tubular wall (17), defining a tubular wall lower edge in the form of a continuous rib (19)
Patent CA-2167398-A1 (CA)
Inventor: BURNS DAVID W
IPC: G01L9/00
Filed: 1994-07-22
Abstract: A resonant strain gauge includes a silicon substrate, a polysilicon flexure beam fixed at both ends relative to the substrate, and a polysilicon rigid cover cooperating with the substrate to enclose the flexure beam within a sealed vacuum chamber. An upper bias electrode is formed on the cover, and a lower bias electrode is formed at the bottom of a trough in the substrate directly beneath the flexure beam. A drive electrode and a piezoresistive element are supported by the beam, formed over a silicon nitride thin film layer deposited onto the top surface of the flexure beam. A second silicon nitride layer covers the drive electrode and piezoresistor, cooperating with the first silicon nitride layer to dielectrically encapsulate the drive electrode and piezoresistor. The silicon nitride further extends outwardly of the beam to a location between the polysilicon layer that contains the beam, and the cover, to isolate the cover from the flexure beam. A polysilicon film is applied over the upper silicon nitride layer as a passivation layer to protect the silicon nitride during gauge fabrication. The process for fabricating the gauge includes a sequence of applying the various polysilicon and silicon nitride layers by low pressure chemical vapor deposition, in combination with selective, etching to define the flexure beam, electric circuit components and vacuum chamber.
Patent CA-2169831-A1 (CA)
Inventor: PAWELEK JOHN M
IPC: C08G65/38
Filed: 1994-08-11
Abstract: Synthetic melanins suitable for cosmetic uses are produced through oxidative polymerization of monomeric precursors that possess aromatic rings with ionizeable side groups. Agents that enhance adherence of the melanins to skin and hair are co-polymerized with the precursors to become part of the melanin molecules. Potential new precursors and adherence-enhancing agents are screened for efficacy by subjecting them to six separate synthetic procedures, and testing the resulting melanins for color, ultraviolet absorbance charcteristics, and substantivity (adherence) to skin and hair. Melanins of different colors can be blended together in cosmetic creams and lotions to complement the natural skin, eye, and hair colors of an individual. The synthetic procedures are amendable to industrial-scale production of cosmetic melanins. The materials reduce the incidence of solar damage to the skin.
Patent CA-2170339-A1 (CA)
Title: Member and Method for Protecting Ink Tank
Inventor: HINAMI JUN
IPC: B41J2/175
Filed: 1996-02-26
Abstract: A method and a member, by the provision of a simple structure, protect the elastic latch nail of an ink tank from external shocks, and/or prevent ink leakage from the ink tank. The ink tank protection member comprises a sealing tape 320 having a tab portion 325 needed for peeling it off, and an elastic latch nail fixing member 360 provided on the sealing tape to be nipped between the elastic latch nail 310 of the ink tank and the main body of the ink tank 350.
Patent CA-2171224-A1 (CA)
IPC: B09B5/00
Filed: 1996-03-07
Abstract: Les méthodes actuelles de traitement des bouteilles d'acétylène disqualifiées pour le service consistent à extraire l'acétone par vaporisation en chauffant les bouteilles entières. Les bouteilles débarrassées de leur acétone liquide sont ensuite mutilées pour empêcher qu'elles soient réutilisées illégalement. Elles sont ensuite enterrées dans un site d'enfouissement avec la masse qu'elles contiennent. Dans le présent procédé de notre invention une des extrémités de la bouteille est préalablement découpée afin que la masse puisse être retirée entière de la bouteille par soufflage à l'autre extrémité. La masse poreuse est ensuite comprimée à froid pour en extraire mécaniquement la plus grande proportion d'acétone. L'acétone résiduel contenu dans la masse compactée est éliminé par combustion ou par vaporisation à chaud en vue d'une éventuelle récupération. Le coût et la durée d'extraction de l'acétone est considérablement réduit. L'acier des bouteilles est récupérable pour la fonderie et ne se retrouve pas dans l'environnement. De plus, le pressage des masses réduit au tiers le volume de déchet à enfouir.
Patent CA-2173326-A1 (CA)
Title: Herbicidal heteroaryl substituted anilides
Inventor: DENES LUCIAN RADU
IPC: C07D241/12
Filed: 1994-09-21
Abstract: Compounds of formula (I) having herbicidal utility are disclosed; wherein Q is a variety of heteroaromatic groups; X is a single bond; O; S; or NR4; R1 is C1C5 alkyl optionally substituted with C1-C2 alkoxy, OH, 1-3 halogens, or C1-C2 alkylthio; CH2(C3-C4 cycloalkyl); C3-C4 cycloalkyl optionally substituted with 1-3 methyl groups; C2-C4 alkenyl; or C2-C4 haloalkenyl; R2 is H; chlorine; bromine; C1-C2 alkyl; C1-C2 alkoxy; C1-C2 alkylthio; C2-C3 alkoxyalkyl; C2-C3 alkylthioalkyl; cyano; nitro; NH(C1-C2 alkyl); or N(C1-C2 alkyl)2; R4 is H; CH3; or OCH3; and agriculturally suitable salts thereof.
Patent CA-2174199-A1 (CA)
Title: Fire door core
Inventor: BERNT JORGEN O
IPC: E06B5/16
Filed: 1996-04-15
Abstract: A core for fire doors comprises hydrated gypsum occupying about 40% to 46% of the core volume and bubbles occupying almost all the core volume which is not gypsum. The larger bubbles preferably comprise about 31% to 38% by volume of bubbles of between 1 and 4 mm and about 17% to 25% of smaller bubbles between .01 mm and .25 mm. The larger bubbles are formed using styrene spheroids.
Patent CA-2174258-A1 (CA)
Title: Method and System for Automatic Transcription Correction
Inventor: KOPEC GARY E
IPC: G06V30/262
Filed: 1996-04-16
Abstract: A method and system for automatically modifying an original transcription produced as the output of a recognition operation produces a second, modified transcription,  such as, for example, automatically correcting an errorful transcription produced by an OCR operation.  The invention uses information in an input text image of character images and in an original transcription associated with the input text image to modify aspects of a formal image source model that models as a grammar the spatial image structure of a set of text images. A recognition operation is then performed on the input text image using the modified formal image source model to produce a second, modified transcription. When the original transcription is errorful, the second transcription is a corrected transcription. Several aspectsof the formal image source model may be modified; in particular, character templates to be used in the recognition operation are trained in the font of the glyphs occurring in the input text image. When errors in the original transcription are caused by matching glyphs against templates that are inadequately specified for the given input text image, the subsequently performed recognition operation on the text image using the trained, font-specific character templates produces a more accurate transcription. Another image source model modification includes constructing a formal language model, based on a character n-gram technique, that models sequences of character n-grams occurring in the original transcription. In one implementation, the 2D image model is represented as a regular grammar in the form of a finite state transition network.
Patent CA-2174589-A1 (CA)
Inventor: OHKUMA NORIO
IPC: B41J2/16
Filed: 1996-04-19
Abstract: A liquid jet recording head comprises a constituting member formed from a cured product of a resin composition comprising (1) a curable epoxy compound, (2) a compound having a functional group reactive to the curable epoxy compound and a fluorocarbon moiety, and (3) a curing agent.
Patent CA-2178784-A1 (CA)
Title: Rouleau pour convoyeur motorise
Inventor: PETROVIC ZMAJ
IPC: B65G47/26
Filed: 1996-06-11
Abstract: Un rouleau pour convoyeur motorisé comporte un mécanisme de limitation de couple à friction latérale pour transmettre le mouvement rotatif d'un élément d'entraînement au rouleau. Le mécanisme de limitation de couple présente une première surface de friction associée au rouleau et une seconde surface de friction associée à l'élément d'entraînement. La seconde surface de friction est faite d'un matériau à la fois métallique et magnétique. Les première et seconde surfaces de friction sont appliquées l'une contre l'autre par un champ magnétique généré par des aimants permanents. Lorsque la force requise pour entraîner le rouleau en rotation est supérieure à la force de friction entre les première et seconde surfaces, il se produit un glissement relatif entre les première et seconde surfaces de friction, causant l'arrêt de la rotation du rouleau. L'élément d'entraînement présente des canaux de ventilation assurant le refroidissement des surfaces de friction.
Patent CA-2179712-A1 (CA)
Title: Crosslinked polymeric ammonium salts
Inventor: ROYCE SUSAN DURKEE
IPC: A61K31/787
Filed: 1995-01-18
Abstract: Disclosed are novel crosslinked polymeric ammonium salts wherein in said polymeric salt: about 25 % or more of the segments which link ammonium nitrogen atoms are group Y wherein Y is an n-alkylene group or alkyl substituted n-alkylene group, wherein said n-alkylene group has 7 to about 20 carbon atoms; zero to about 75 % of segments which link ammonium nitrogen atoms are group Z wherein Z is a hydrocarbylene radical containing 2 or more carbon atoms, said hydrocarbylene radical optionally containing one or more hydroxyl, ether, amino, thioether, keto, or silyl groups or heterocyclic rings; and about 25 % or more of the ammonium atoms are secondary ammonium atoms.
Patent CA-2180687-A1 (CA)
Title: Automated phrase generation
Inventor: GORIN ALLEN LOUIS
IPC: G06F17/28
Filed: 1996-07-08
Abstract: A methodology for automated task selection is provided, where the selected task is identified in natural speech of a user making such a selection. A set of meaningful phrases are determined by a grammatical inference algorithm which operates on a predetermined corpus of speech utterances, each such utterance being associated with a specific task objective, and wherein each utterance is marked with its associated task objective. Each meaningful phrase developed by the grammatical inference algorithm can be characterized as having both a Mutual Information value and a Salience value (relative to an associated task objective) above a predetermined threshold.
Patent CA-2184803-A1 (CA)
Inventor: ROBINSON DAVID LEE
IPC: B60N2/23
Filed: 1996-09-04
Abstract: A linear recliner is described for controllably adjusting the angular position of a seatback relative to a seat member in response to actuation by a seat occupant. The linear seat recliner includes a rod adapted to be operatively connected to one of the seatback and the seat member and a housing pivotably connected to the other of the seatback and the seat member. The housing is configured to receive a portion of the rod for linear movement relative thereto whereby linear movement of the recliner rod corresponds to angular movement of the seatback relative to the seat member. The linear seat recliner further includes a cam plate coupled for rotation with an actuator shaft and which is adapted to engage a toothed pawl so as to move the pawl to and from engagement with the toothed portion of the recliner rod, thereby establishing locked and released modes for the linear seat recliner. In one embodiment of the invention, substantially similar slave and master latch mechanisms are provided with the master latch mechanism connected to a release mechanism operable to shift both latch mechanism from their latched conditions.
Patent CA-2185527-A1 (CA)
Inventor: LIBERMANN BENNO E
IPC: A23L35/00
Filed: 1995-04-19
Abstract: Sont décrits un appareil et un procédé pour assurer la sécurité bactériologique lors de la production, dans le cadre de la restauration rapide, de hamburgers et d'autres aliments protéiques ou farineux. La présente invention concerne un procédé et un appareil pour transférer de la chaleur à des aliments, et est notamment conçue pour faire cuire et/ou maintenir des aliments pré-cuits à une température très voisine d'une température interne précise préférée pendant des durées prolongées. L'appareil décrit peut s'utiliser pour initialement faire cuire des aliments ou pour achever la cuisson d'aliments pré-cuits et pour les maintenir, pendant une durée prolongée, à une qualité optimale et à une température interne précise dans les limites de la plage étroite d'équilibre de ~ 2 ~F, assurant ainsi, en fonction de la durée et de la température, une gestion précise des risques pathogènes et l'innocuité des aliments en vue de la consommation publique. L'appareil permet un processus de thermalisation uniforme et précis destiné à assurer une reproduction cohérente de l'équilibre thermique interne dans les limites de la plage étroite de température interne de ~ 2 ~F, dans des galettes de boeuf fraîches congelées précuites ou réfrigérées, et constitue un moyen pour décongeler ou faire cuire des aliments à une température inférieure à 212 ~F et/ou pour maintenir les galettes et/ou d'autres aliments (qui peuvent être enveloppés dans des emballages plastiques appropriés), pendant une durée prolongée, à une plage de température interne équilibrée et garantissant l'innocuité, pouvant être choisie entre 130 et 185 ~F. Cette plage de température est optionnelle et maintenue afin d'assurer l'innocuité bactériologique des aliments par l'obtention d'une léthalité thermique de 99,999 % des agents pathogènes à l'état de traces tels que Salmonella et Escherichia coli 0157:H7 potentiellement présents dans les produits carnés hachés tels que les galettes de boeuf ou de poulet.
Patent CA-2185879-A1 (CA)
Inventor: HESS CHARLES J
IPC: G01N27/401
Filed: 1996-09-18
Abstract: An electrochemical sensor wherein an ion impermeable plug is interposed between the adjacent faces of the large plugs that are used in the salt bridge.  The salt bridge also includes a solid cylindrical plug that passes through the  ion  impermeable  plug  to  thereby  interconnect  the adjacent large plugs.  The large plugs have a central bore for receiving the glass sense electrode.  The impermeable plug has protrusions to provide a better seal between the impermeable plug and the glass sense electrode and the impermeable plug and the housing in which the salt bridge is inserted.  In addition, the sensor may also include a rigid liner between the large plugs and the glass sense electrode to act as a barrier to prevent damage to this sense electrode during and after impregnation.
Patent CA-2186632-A1 (CA)
Inventor: VARADARAJ RAMESH
IPC: B09C1/10
Filed: 1996-09-26
Abstract: A bioremediation process is provided comprising adding cedar pieces to a hydrocarbon contaminated soil in an amount ranging from about 5 to about 15 wt.% based on the weight of the contaminated soil and applying sufficient nitrogen and phosphorous nutrients to the soil to provide a C:N:P ratio in the range of about 100:10:1 to about 100:1:0:1.
Patent CA-2187958-A1 (CA)
Title: Decorative gift wrap
Inventor: BATES SHIRLEY
IPC: B65D30/04
Filed: 1996-10-16
Abstract: A decorative gift wrap is disclosed. The decorative gift wrap provides several species, encompassing a variety of differently shaped wraps. Fabric having a variety of decorative patterns is used to construct sack-like gift wraps. In several versions of the invention, a non-linear cut to the top opening results in the gathered fabric assuming decorative floral formations after a fastener is secured to the opening. Several versions of the invention provide for two sack-like wraps of fabric, within which the gift is contained. In one of these versions, a filler carried between the fabric layers creates a pleasing rounded appearance and tends to protect the gift and disguise its true appearance.
Patent CA-2188799-A1 (CA)
Title: Rectangular vacuum-arc plasma source
Inventor: WELTY RICHARD P
IPC: C23C14/22
Filed: 1995-04-25
Abstract: A rectangular vacuum-arc plasma source and associated apparatus for generating and di-recting a stream of plasma containing an ioz-ized vapor of a cathode material (30) toward a substrate (44) by vacuum arc evaporation of a rectangular planar cathode (32) mounted in a rectangular plasma duct (34). The rectangular duct (34) conducts the plasma from the cathode (31) to the substrate region (44), while inter-cepting the molten droplets of cathode material (30) also generated by the arc. Magnets (46, 48, 40) control the arc motion on the cathode sur-face (33) while simultaneously generating the magnetic field which guides the plasma through the duct (34). Benefits of a filtered cathodic arc (fully ionized vapor stream, elimination of splattered droplets) are combined with the bon-efits of a rectangular source (uniform evapora-tion from the source and uniform deposition on the substrate using linear motion). The rect-angular source may be extended indefinitely in length, thus allowing coating or ion implanta-tion on large or long substrates.
Patent CA-2189095-A1 (CA)
Title: Fall prevention system for top mount antenna
Inventor: ROY GILLES
IPC: A62B35/00
Filed: 1996-10-29
Abstract: In a vertical radio-frequency wave radiating structure to be climbed by a person, there is provided a fall prevention system. This fall prevention system includes a safety rope, made of a radio-frequency wave resistant material, to receive an individual rope grab. A first end of the safety rope is attached to an upper section of the vertical structure, while the second end of that safety rope is attached to a lower section of the vertical structure. Preferably, the safety rope comprises a polyurethane resin impregnated aramid fiber core protected with a thick extruded jacket of polyurethane.
Patent CA-2191621-A1 (CA)
Inventor: SCHMID RAIMUND
IPC: G07D7/00
Filed: 1995-05-17
Abstract: L'invention concerne l'utilisation de pigments d'interférence à base de lamettes de silicate recouvertes de dioxyde de titane, chauffées dans une atmosphère réductrice, pour produire des documents fiduciaires et des emballages infalsifiables.
Patent CA-2192699-A1 (CA)
Title: A system and method for equalization of forward and reverse channels of a communications highway network system
Inventor: ULM JOHN
IPC: H04N7/173
Filed: 1996-04-12
Abstract: A system and method for equalization for forward and reverse channels of a communication highway network system (10) having a branching tree topology (22). The system and method cause the forward channel (36) to be adjusted first for equalization, then the reverse channel (38) is adjusted for equalization.
Patent CA-2192847-A1 (CA)
Title: Defibrillator shock timing in fibrillatory cycle interval
Inventor: ALT ECKHARD
IPC: A61N1/39
Filed: 1996-04-18
Abstract: A defibrillator has a signal generator implemented to deliver output shock waveforms and housed in a case adapted to be implanted in the left pectoral region of a cardiac patient. The case is implemented to interact with internal circuitry of the generator to maintain the case active as an electrode. An electrical transvenous lead has a proximal electrode for electrical connection to the internal circuitry of the signal generator and a distal end adapted to be positioned in the right ventricle (RV) of the patient's heart. The lead includes a sensing tip for contacting the RV to sense the patient's ECG signal and a shocking coil arranged to be located in the RV when the transvenous lead is implanted in the patient. The internal circuitry of the signal generator includes triggerable output circuit for developing an output shock waveform when triggered in response to detection of ventricular fibrillation of the patient's heart from the sensed ECG signal. The internal circuitry also includes a timer responsive to the sensed ECG signal for timing the application of the shock waveform developed by the output circuit across the transvenous lead and the active case with a predetermined delay relative to the occurrence of an R-wave of the sensed ECG signal next following detection of fibrillation until at least about 50 % of the R-R cycle length of the ECG  signal has elapsed, to optimize the timing of delivery of an electric field vector derived from the shock waveform across a myocardial mass of the patient's heart between the shocking coil and the active case.
Patent CA-2193332-A1 (CA)
Title: Motorcycle towing apparatus
Inventor: GUILD NEVILLE
IPC: B60P3/12
Filed: 1996-12-18
Abstract: A motorcycle towing apparatus including a securing portion (2) for securing the front wheel (3) of a motorcycle (1) to the tow bar (12) of a towing vehicle. A clamping assembly (7) fastens the wheel (3) to the securing means (2). The securing means (2) can pivot relative to tow bar 12 in a substantially horizontal plane. Ramp (21) acts both as a stabilising means secured via a fastening means (24) to foot steps (26) on either side of the motorcycle and also as a ramp to assist in loading and unloading motorcycle (1). Ramp (21) may be rotated towardssecuring assembly (2) so that the assembly is compact and may be easily transported when not in use (see figure 7).
Patent CA-2193605-A1 (CA)
Inventor: KERWIN PAUL
IPC: C09B67/16
Filed: 1996-12-20
Abstract: The present invention provides a process for converting a crude pigment into pigmentary form which comprises kneading the crude pigment in the presence of a liquid carboxylic acid and optionally a salt.