baber/WOPTO huggingface dataset:
Patent CA-2185029-C (CA)
Inventor: THOMPSON LARRY W
IPC: G01V/
Filed: 1995-03-07
Granted: 2003-08-26
Abstract: La présente invention concerne la détermination de paramètres géophysiques de formations géologiques rencontrées lors du forage d'un puits. L'invention concerne plus particulièrement la détermination des propriétés géophysiques à partir de mesures des caractéristiques électromagnétiques des formations géologiques au voisinage du puits, soit pendant le forage, soit après le forage du puits. L'organe d'instrumentation de fond de puits comporte un ou plusieurs émetteurs et une pluralité de récepteurs espacés axialement le long d'un sous-ensemble de fond de puits, ledit organe d'instrumentation étant descendu en fond de puits au moyen d'une tige de forage. Pour éliminer les effets indésirables imputables aux variations d'impédance et au couplage inter-éléments des antennes réceptrices, on a amélioré les circuits électroniques et les procédés de traitement des données, le traitement parallèle des données permettant de réduire au minimum la propagation des erreurs systématiques dans les paramètres clés calculés. La qualité des paramètres clés mesurés ou calculés fait également l'objet d'un contrôle.
Patent CA-2187226-C (CA)
Title: Curable coating composition
Inventor: OHRBOM WALTER H
IPC: C09D161/20
Filed: 1996-10-04
Granted: 2004-12-07
Abstract: A curable coating composition is described comprising (A) a carbamate- or urea-functional compound that is the reaction product of (1) a compound comprising a carbamate or urea group or a group that can be converted to carbamate or urea, and a hydroxyl functional group that is the reaction product of (a) a compound comprising a carbamate or urea group or a group that can be converted to a carbamate or urea group, and an active hydrogen group that is reactive with a lactone or a hydroxy carboxylic acid, and (b) a lactone or hydroxy carboxylic acid, and (2) a component that is reactive with compound (A)(1) to convert a hydroxyl group on compound (A)(1) to a carbamate group, or a component comprising a group that is reactive with a hydroxyl group on compound (A)(1) and a carbamate or urea group or group that can be converted to carbamate or urea, (B) a compound comprising a plurality of groups that are reactive with carbamate or urea.
Patent CA-2192412-C (CA)
Inventor: EL-SOUDANI SAMI M
IPC: C22F1/00
Filed: 1996-12-09
Granted: 2005-12-06
Abstract: The invention is a process for simultaneously improving at least two mechanical properties of mill-processed (.alpha. + .beta.) titanium alloy, which may or may not contain silicon, which includes steps of heat treating the mill-processed titanium alloy such that the (.alpha. + .beta.) microstructure of said alloy is transformed into an (.alpha. + .alpha.2 + .beta.) microstructure, preferably containing no silicides. The heat treating steps involve subjecting the mill-processed titanium alloy to a sequence of thermomechanical process steps, and the mechanical properties which are simultaneously improved include (a) tensile strength at room, cryogenic, and elevated temperatures; (b) fracture toughness; (c) creep resistance; (d) elastic stiffness; (e) thermal stability; (f) hydrogen embrittlement resistance; (g) fatigue; and (h) cryogenic temperature embrittlement resistance. As a consequence of the process, the (.alpha. + .alpha.2 + .beta.) microstructure contains equiaxed alpha phase strengthened with .alpha.2 precipitates coexisting with lamellar alpha-beta phase, where the .alpha.2 precipitates are confined totally to the equiaxed primary alpha phase. The invention also encompasses a composition of matter produced by the inventive process, especially one comprising a titanium alloy having an (.alpha. + .alpha.2 + .beta.) microstructure.
Patent CA-2195002-C (CA)
Title: Method for steering a drill bit while drilling a bore hole
Inventor: GRAY BENJAMIN
IPC: E21B7/06
Filed: 1995-07-25
Granted: 2000-06-27
Abstract: A drilling system for controlling steering of a downhole drilling tool (23) includes a shallow bend (28) in the drilling tool and a system (22) for rotating the bent drilling tool slowly about a longitudinal axis (24) of the drilling tool while the drill bit rotates more rapidly. The system further allows the slow rotation to be halted at a predetermined orientation of the bend axis (28) so as to effect a change in drilling direction. The system for rotating and halting this slow rotation comprises a downhole swivel coupling between the drilling tool (23) and the drill string (100) so that torque from the drill bit tends to rotate the drilling tool in the opposite direction. A control device is provided to restrict the amount of torque communicated through the swivel coupling and to halt the swivel coupling as required to control the steering of the drill bit.
Patent CA-2198236-C (CA)
Title: Mode de montage de cylindres de rotation dans le bras d'une perforatrice
Inventor: LEMMETTY PAULI
IPC: E21B41/00
Filed: 1995-08-28
Granted: 2006-05-02
Abstract: Structure de montage de vérins de pivotement pour un bras de perforatrice de roches, qui comprend un châssis (1), un bras (2) relié pivotant autour d'un arbre vertical et d'un arbre horizontal (3, 4), par rapport au châssis (1), un vérin de levage (5) reliant le châssis (1) et le bras (2), un vérin de pivotement (6) reliant le châssis (1) et le bras (2), un support (7) pour une poutrelle d'avance, relié pivotant à l'autre extrémité du bras (2) autour d'un arbre horizontal et d'un arbre vertical (8, 9), un vérin d'inclinaison (10) reliant le support (7) et le bras (2), et un vérin de pivotement (11) transversal reliant le support (7) et le bras (2). Selon la présente invention, le vérin de pivotement (6) est couplé à un angle  alpha  par rapport à l'axe longitudinal du bras (2), entre le châssis (1) et l'extrémité du bras (2), verticalement vers le bas, si bien que lorsque le bras (2) se trouve au milieu de ses angles d'élévation supérieur et inférieur, le vérin de pivotement (6) est pratiquement horizontal.
Patent CA-2205140-C (CA)
Inventor: STEVENS CHRISTOPHER JOHN
IPC: B41J29/26
Filed: 1995-11-08
Granted: 2000-01-04
Abstract: A tape dispenser, e.g. a correction tape dispenser, has a tip element (4) defining an edge (5) around which passes the tape (1) including the correction composition carried on a carrier ribbon, the tip edge being used to press the tape against a surface onto which the correction composition is to be transferred as a strip or band, and the tip element (4) being mounted, such as by plastic hinge (10), to allow pivotal movement of the tip about an axis Y  substantially perpendicular to the surface and spaced in front of the tip edge (5).
Patent CA-2206565-C (CA)
Title: Contoured ventilation system for metal roofs
Inventor: ROTTER MARTIN J
IPC: E04D3/30
Filed: 1995-11-27
Granted: 2005-05-24
Abstract: A building structure adapted to allow for ventilation of vapors from within the structure so as to retard deterioration of the structure. A sloped roof (12) has a decking (14) and a sheet (16) overlying the decking . The sheet (16) has a plurality of projections (28) projecting upward away from the decking. The sloped roof has a vent slot (26) disposed along a roof ridge (20) adapted to permit air from an interior space under the roof to flow through the slot to the exterior. A strip (30) has a surface (44) shaped to match the projections (28) of the sheet. The strip has an air permeable and resilient portion. A ridge cap (24 ) overlies the slot (26) and the strip (30). The air permeable and resilient portion of the strip is adapted for the flow of vapors.</SDOAB >
Patent CA-2215645-C (CA)
Title: Universal telephone system and method
Inventor: RONEN YZHAK
IPC: H04L69/14
Filed: 1997-09-15
Granted: 2000-08-15
Abstract: A universal phone located in a foreign country provides home country telephone appearance and functions for a caller visiting the foreign country. The universal phone includes a database of national telephone features that are characteristic of the caller's home country. The universal phone includes a smart card adapter that receives a smart card presented by the caller, bearing information of the caller's ID, the caller's home country, and other information. When the caller inserts his smart cart into the universal phone, the caller's home country information is read from the card. The home country information is used to access the database to obtain the telephone appearance and functions of the home country. The text of messages in the language of the home country is displayed on a display screen of the universal phone. The image of the dialing key pad is also displayed on the display screen. The action to be performed in response to each key is provided to logic associated with a touch overlay membrane positioned on the surface of the display screen. When the caller presses the touch overlay membrane at a location over the image of a key,the corresponding action is performed by the logic. Actions include forming a string of dialing digits in the home country's format, for transmission to the universal server. The universal server translates the caller's dialed number in the caller's home country format, into a network code that enables establishmentof the call.
Patent CA-2217435-C (CA)
Inventor: CASTRO SALVATORE
IPC: A61B19/00
Filed: 1997-10-06
Granted: 2006-08-29
Abstract: An apparatus for applying a tissue fastener for fastening soft tissue to bone includes elongated members, one of which holds a loading unit having a tissue fastener mounted therein, and another of which is moved to expel the tissue fastener from the loading unit and expand legs of the tissue fastener to secure it within a predrilled hole in bone. The tissue fastener is preferably a two piece fastener including a body portion with legs flexibly expandable by a setting pin. The loading unit engages both the body and the setting pin.
Patent CA-2219912-C (CA)
Title: Procede de revetement avec un semiconducteur photocatalytique
Inventor: MEINZER RICHARD A
IPC: C23C26/00
Filed: 1996-04-25
Granted: 2007-01-30
Abstract: L'invention concerne un procédé simplifié de revêtement d'un substrat avec un semiconducteur photocatalytique consistant à mélanger une poudre de semiconducteur photocatalytique avec de l'eau pour former un mélange, à réduire le pH du mélange à un niveau inférieur à environ 4, à soumettre le mélange à une sonification, à revêtir le substrat avec ledit mélange et à exposer aux ultraviolets le substrat revêtu.
Patent CA-2222356-C (CA)
Inventor: VILTARD JEAN-CHARLES
IPC: B01D53/50
Filed: 1997-12-09
Granted: 2006-10-10
Abstract: Procédé de fabrication de soufre élémentaire par réaction d'hydrogène sulfur é et de dioxyde de soufre au sein d'un milieu (2) réactionnel liquide comprenant un solvant de ces deux composés, contenant au moins un composé basique soluble, par mise e n contact à co-courant du mélange gazeux (3) contenant du dioxyde de soufre et de l'hydrogène sulfuré et du solvant contenant le catalyseur (14).
Patent CA-2226066-C (CA)
Inventor: GABRIELE ANGELO
IPC: E06B7/086
Filed: 1997-12-30
Granted: 2002-01-22
Abstract: A plastic louver for a shutter comprises a main louver body with end caps which are made separately from the louver body.  The louver body before receiving the end caps has open ends, each of which is defined by a surrounding mouth wall and each end cap has an end face which is bordered by an outside edge wall of the end cap. The end caps are fitted into the louver ends such that the outside edge walls of the end caps are positioned interiorly of the louver end mouth walls.  This construction gives the plastic louver a one piece wooden look.
Patent CA-2227109-C (CA)
Inventor: JOHNSTON GREGORY L
IPC: B60T17/22
Filed: 1998-01-16
Granted: 2001-12-18
Abstract: A dual seal coupling apparatus enables quick measurement of brake cylinder pressure  through a  receiver  assembly of  a control valve.  The receiver assembly has a receiver body, a check valve housed in the body and a cover whose removal renders  the  check valve  accessible.   The  check valve  is normally compressed against a check valve seat to provide a first seal that prevents leakage of the pressure.  When moved away from its seat,  the check valve provides access to the pressure.  The apparatus includes a boss that protrudes from the cover and a male portion of a quick connect coupling.  The boss defines a threaded bore aligned with the check valve when the cover is secured to the receiver body.  The male portion includes a valve body and a valve stem.  The valve body defines a valve bore and has a threaded end for screwing into the threaded bore of the cover.  At its opposite end, the valve body is shaped to mate with a female portion of the quick connect coupling.  The valve stem moves within the bores and its head is normally compressed against a valve stem seat.  The head of the valve stem against the valve stem seat provides a second seal that further prevents leakage of the pressure.          When the male and female portions are mated, the valve stem is moved away from its seat thereby moving the check valve away from its seat and providing access to and enabling measurement of the brake cylinder pressure.
Patent CA-2228394-C (CA)
Inventor: CHANG LI-YEN EDWARD
IPC: A61L2/18
Filed: 1998-02-25
Granted: 2002-08-20
Abstract: The invention provides a novel catalase which is cloned from Bacillus theremoglucosidasius. The invention further provides a process for preparing catalase in high yield, which comprises constructing expression vectors and transformant cells with catalase genes cloned from microorganisms using genetic engineering technology, and obtaining the expression product. The invention also provides a novel recombinant plasmid and a novel transformant cell constructed in the process. In addition, the invention provides a composition for decomposing hydrogen peroxide contained in the residual disinfectant on contact lenses, which comprising the novel catalase of the invention.
Patent CA-2229758-C (CA)
Inventor: HU MING-CHUN
IPC: E02B11/00
Filed: 1998-02-17
Granted: 2005-06-28
Abstract: A drainage method comprises the step of absorbing liquid from soil, by capillary action, into a plurality of drain-collecting slots provided on at least one surface of a strap-like drain material embedded in the soil. The slots include a plurality of notches in the surface of the drain material that are sufficiently small to create a capillary effect and that extend to the slots which are larger than the notches. The slots are arranged in a spaced-apart fashion across a width of the drain material and extend along its length. The notches correspond to the plurality of slots; the notches extending from the slots to a surface of the drain material. Each notch is sized such that the notch is capable of creating a capillary action and is adapted to draw liquid from outside into the slot corresponding to the notch.
Patent CA-2230224-C (CA)
Inventor: VILLANUEVA APOLONIO III
IPC: A61K/
Filed: 1996-08-22
Granted: 2003-01-21
Abstract: An improved highly alkaline hair straightening emulsion and a two component system for preparing the emulsion are provided. The emulsion employs a combination of strong nitrogenous organic base and alkali metal hydroxide in the presence of an alkaline earth metal cation. Neither the amount of the alkali metal hydroxide nor the amount of organic base present in the emulsion is sufficient by itself to effectively permanently straighten naturally curly hair. Alkaline earth metal hydroxides are characteristically ineffective as permanent hair straighteners. However, surprisingly, the combination is effective for achieving permanent straightening of hair within a treatment time of not more than about 30 minutes. In use, the emulsion also substantially avoids scalp skin irritation. Also, hair discoloration and hair breakage are minimized.
Patent CA-2231529-C (CA)
Inventor: LASHER GABRIELLE R
IPC: C01B32/949
Filed: 1996-09-10
Granted: 2004-04-20
Abstract: Un carbure d'un métal de transition est formé à partir d'un mélange précurseur comprenant au moins l'un des éléments du groupe composé de: un métal de transition, un carbure d'un métal de transition et un oxyde d'un métal de transition. Ce mélange précurseur peut contenir le carbure de métal de transition désiré (par exemple WC), mais, si le carbure de métal de transition désiré est présent dans le mélange précurseur, il y a nécessairement une quantité importante d'un autre composé, tel qu'un oxyde de métal de transition, du carbure non désiré (par exemple W2C) ou du métal de transition. Ledit procédé consiste à former une composition en mélangeant le mélange précurseur avec une quantité suffisante de carbone pour transformer par carburation le mélange précurseur en carbure de métal de transition et en faisant réagir ladite composition dans une atmosphère inerte ou réductrice à une certaine température pendant une durée suffisante pour convertir en carbure de métal de transition ladite composition, laquelle est mise en réaction en présence d'un moyen destiné à stimuler le transfert de chaleur dans ladite composition, un gaz inerte ou réducteur s'écoulant à travers au moins une partie de ladite composition ou d'une combinaison de celle-ci.
Patent CA-2231648-C (CA)
Title: Polyurethane hydrogel drug reservoirs for use in transdermal drug delivery systems
Inventor: CHEN TUNG-FEN
IPC: A61K9/70
Filed: 1996-09-13
Granted: 2003-01-28
Abstract: High capacity drug reservoirs are provided for incorporation into transderma l drug delivery systems. The drug reservoirs are hydrogels formulated from polyurethanes crosslinked with diisocyanate crosslinking agents or cured wit h radiation in the presence of a photoinitiator. Drug loading as high as 65 to  70 wt.% or higher can be achieved by absorbing drug formulation into the reservoir after hydrogel synthesis. Methods for making and using transdermal  systems containing such reservoirs are provided as well.
Patent CA-2235102-C (CA)
Inventor: HOLZGRAFE JAMES R
IPC: H04N7/167
Filed: 1992-11-12
Granted: 2000-01-25
Abstract: A video-scrambling system induces a random wobble i.e., time shifting, in the location of active portion of the video frame, without affecting the horizontal sync signal and colorburst in each video line, thus providing both security and concealment.  The security is enhanced by filling in the gap between the nominal beginning of active video and the actual beginning of active video with a synthesized video signal which replicates the adjacent active video using a digitally generated filling pattern. Also, a random noise overlay further conceals the location of the gap.  Additional concealment is provided by wiggling in time the location of the horizontal sync signal using one or two frequencies and also by randomly altering the location of the vertical sync signal.  The NTSC digital encoding in accordance with the invention is simplified by using only two channels, chrominance and luminance, and by a heterodyne circuit for chrominance stability.  NTSC encoding is enhanced by providing detail normally lost, by use of the chroma channel.  Additionally, a non-standard video signal may be provided with a portion of the colorburst on the front porch of the horizontal blanking, thus allowing use of a relatively simple decoder.
Patent CA-2236843-C (CA)
Title: Retrieval device for insertion into a body lumen
Inventor: DEREUME JEAN-PIERRE GEORGES EM
IPC: A61F2/95
Filed: 1996-11-04
Granted: 2003-08-12
Abstract: Capturing device to be introduced into a tubular biological conduit of the human or animal body, includes a support sheath (1) having a first axial cavity (2), a pusher (3) capable of sliding in the said axial cavity, a first control permitting a relative displacement between the pusher and the support sheath, and flexible grippers including fastening elements (7) which are disposed peripherally on the pusher. The fastening elements extend forwards, inside the support sheath, and spread apart radially from one another outside the support sheath. The fastening elements (7) are each provided at their distal end with a hook capable of entering into engagement with an inner surface of a tubular article to be captured in the conduit and of compressing it radially by traction.
Patent CA-2240973-C (CA)
Title: Improved antioxidant system for lubrication base oils
Inventor: GATTO VINCENT JAMES
IPC: C10M137/10
Filed: 1998-06-18
Granted: 1999-08-03
Abstract: This invention relates to antioxidant compositions comprising (A) at least one secondary diarylamine, (B) at least one sulfurized olefin and/or sulfurized hindered phenol, and (C) at least one oil soluble molybdenum compound. These antioxidant compositions are highly effective at providing oxidative stability to lubricating compositions, especially for highly saturated, low sulfur lubrication base oils.
Patent CA-2241263-C (CA)
Title: N-arylsulfilimine compounds and their use as catalysts in the preparation of n-arylarylsulfonamide compounds
Inventor: SCOTT CARMEN A
IPC: C07C323/67
Filed: 1997-11-13
Granted: 2007-05-22
Abstract: N-arylsulfilimine compounds, such as S,S-dimethyl-N-(2,6- dichlorophenyl)sulfilimine, were prepared and found to catalyze the re-action of aromatic sulfonyl chloride compounds, such as 2-chlorosulfonyl- 7- fluoro-5-ethoxy[1,2,4]-triazolo[1,5-c]pyrimidine, with aromatic amine compounds, such as 2,6-dichloroaniline, to form N- arylarylsulfonamide compounds, such as N-(2,6-dichlorophenyl)-7-fluoro-5-ethoxy-[1,2,4]triazolo[1,5-c]pyrimidine-2- sulfonamide. The aryl moiety of the N-arylsulfilimine catalyst and the aryl moiety of the aromatic amine compound were generally chosen to be identical.
Patent CA-2241323-C (CA)
Inventor: GREMEL ROBERT F
IPC: A61M1/18
Filed: 1997-01-15
Granted: 2001-12-18
Abstract: A tight seal is achieved in a blood oxygenator (10) between the potting of t he heat exchanger fibers (22) and the rim (42) of the heat exchanger container (14) by extending the potting material (26) over the rim (42) and down, so that when the potting material (26) shrinks during cure, the potting (26) wi ll become prestressed in the sealing direction against an outwardly facing wall  of the container (14). The invention also provides a ring (50) coextensive with the rim (42) and spaced therefrom. The potting (26) extends into the ri ng (50). This forms an air gap (62) between the rim (42) and the ring (50) through which potting (26) can extend. As a result, there is no possible leakage path between the blood and the heat-exchange medium. Any leak that does occur discharges to atmosphere outside the container (14).
Patent CA-2246935-C (CA)
Inventor: LAUBY WILLIAM J
IPC: G01R15/12
Filed: 1998-09-11
Granted: 2001-11-20
Abstract: A multimeter having an elongated housing with a fixed recess for receiving a current-carrying conductor is provided. The multimeter is adapted to measure various parameters including a.c. and d.c. voltage, resistance, and a.c. current. On one end of the elongated housing of the multimeter is a C-shaped current sensor mounted around the fixed recess for measuring a.c. current in the current-carrying conductor and on the other end is a pair of test leads for measuring resistance, a.c. voltage, and d.c. voltage. The current sensor and the test leads provide input signals to an analog-to-digital converter (ADC) to obtain digital samples which are displayed as measurement results according to the selected measurement mode.
Patent CA-2249825-C (CA)
Inventor: REMES CORNELIU R
IPC: H04M9/08
Filed: 1998-10-08
Granted: 2002-08-06
Abstract: A digital signal processing algorithm to cancel howling in a telephone circuit, the telephone circuit being characterized by a receive path and a transmit path in an effective closed loop configuration. The algorithm monitors input samples taken from the receive path and, if a howling signal is detected, controlled amounts of attenuation are introduced to the loop until howling is cancelled. In a preferred embodiment a prediction logic is included in the algorithm to verify the howling signal.