baber/WOPTO huggingface dataset:
Patent CA-2281958-C (CA)
Inventor: MOORE BOYD B
IPC: H01R13/533
Filed: 1993-04-29
Granted: 2003-06-10
Abstract: The present invention relates to a ferrule-type fitting for forming a fluid-tight seal between an insulated electrical conductor extending from outside a well to a wellhead barrier and a rigid tube that projects outside the wellhead barrier. The rigid tube surrounds the electrical conductor and extends through the wellhead barrier for routing the electrical conductor. The ferrule-type fitting is comprised of a tubular body fitting with an elongated opening sized and shaped to fit around the rigid tube. The opening includes a conical counter bored section adjacent to one end for forming a gap between the body fitting and the rigid tube. The body fitting includes an outer threaded surface on the one end. A ring shaped ferrule bushing is formed of a material softer than the material of the rigid tube, which has the tendency of returning to its original shape after being deformed. The ferrule bushing is sized and shaped to fit around and directly contact the rigid tube and interface the conical counter bore section with the gap. A nut fitting is provided which includes a threaded inner surface for engagement with the outer threaded surface of the body fitting. The nut has a shoulder for engaging the ferrule bushing. The shoulder engages the ferrule bushing so that the ferrule bushing is deformed to engage and crimp the rigid tube. This provides a fluid-tight seal between the inner surface of the rigid tube and the insulated electrical conductor after the nut fitting is tightened onto the body fitting. The ferrule bushing is not hard enough to permanently engage the rigid tube, but returns to its original shape so that it can be removed from the crimped rigid tube when the nut fitting is loosened and removed from the body fitting.
Patent CA-2288098-C (CA)
Inventor: LINDSTROM LARS
IPC: A61B5/0488
Filed: 1997-07-17
Granted: 2007-04-17
Abstract: To control a lung ventilator (54) comprising an inspiratory implement (56) to be worn by the patient (14), an air supply system (55) for supplying air to the inspiratory implement (56), and a control unit (53) for controlling the air supply system (55), electromyographic signals (24, 25) produced by the patient's diaphragm (11) are detected by an array of electrodes (12) passing through the center of the patient's diaphragm depolarizing region (DDR).      The position of the center of the patient's diaphragm depolarizing region (DDR) is determined through detection of a reversal of polarity of the electromyographic component of the electrode-detected electromyographic signals (24, 25). First and second electromyographic signals (24, 25) detected by the electrodes of the array (12) on opposite sides of the patient's diaphragm depolarizing region (DDR) are subtracted from each other, this subtraction cancelling the noise components of the first and second electromyographic signals (24, 25) but adding the respective electromyographic components of these first and second signals (24, 25) together to produce an electromyographic signal (62) having an improved signal-to-noise ratio having a reduced electrode-position-induced filter effect and being representative of a demand to inspire from the patient's brain. The electromyographic signal (62) of improved signal-to-noise ratio is finally supplied as input signal to the control unit (53) of the lung ventilator (54) for controlling the air supply system (55) and therefore the inspiration assist in relation to the electromyographic signal of improved signal-to-noise ratio and of reduced electrode-position-induced filter effect, and therefore in relation to the demand to inspire from the patient's brain.
Patent CA-2294164-C (CA)
Title: Optical logic element and methods for respectively its preparation and optical addressing, as well as the use thereof in an optical logic device
Inventor: NORDAL PER-ERIK
IPC: G02F3/02
Filed: 1998-06-05
Granted: 2003-04-22
Abstract: In a multistable optical logic element with a light-sensitive organic materi al (1) which undergoes a photocycle with several physical states by irradiation  with light, and wherein a physical state is assigned a logical value which c an be changed by addressing the element optically, the element initially before  the addressing is in a metastable state generated in advance. A multistable optical logic element has been made proximity-addressable by providing at least a colour light source (1) for optical addressing and at least one colo ur- sensitive optical detector (5) adjacent to the light-sensitive material. In a method for preparing of the light-sensitive material (1) a desired initial metastable state is generated in the photocycle and assigned a determined logical value for the element. In a method for optical addressing of the optical logic element steps for respectively writing and storing, reading, erasing and switching comprises generating transitions between states in the  photocycle and detection of the states. Use in an optical logical device for  storing and processing of data.
Patent CA-2294323-C (CA)
Title: Traversee a orientation bloc et bande dans le rendu d'un triangle a trois dimensions
Inventor: ZHAO RANDY X
IPC: G06T11/40
Filed: 1998-06-18
Granted: 2006-05-30
Abstract: On décrit un système et un procédé permettant d'effectuer la traversée et le rendu d'une primitive graphique représentée dans un espace écran, dans lesquels on utilise dans le mappage de textures, des algorithmes de traversée (1208, 1203) orientés bloc et orientés bande. On améliore la performance par un accès à la texture en mode rafale et par la mise en mémoire cache de la texture en combinaison avec une carte de la texture subdividsée en carrés. La traversée orientée bloc et orientée bande permet de réduire au maximum les sauts de page et les extractions de la mémoire cache de texture. Le déterminisme amélioré résulte de l'élimination des algorithmes de triage (1201) des pixels. Ce système facilite la réutilisation améliorée de segments (1202) de données récupérés en mode d'accès par rafales.
Patent CA-2295269-C (CA)
Title: Torsion spring connections for downhole flapper
Inventor: WILLIAMS RONALD D
IPC: F16K17/04
Filed: 2000-01-12
Granted: 2008-04-08
Abstract: A torsion spring return system for a valve closure member, preferably for downhole use in an SSV, is described. The closure member or flapper uses torsion springs which can be wrapped circumferentially within the body of the downhole tool, generally following the periphery of the flapper. Downward rotation of the flapper stresses the torsion springs so that subsequently, when a flow tube or other device holding the flapper in one position is released, the torsion springs return the flapper to its seat. The connection between the torsion springs and the pin supporting the flapper is either a universal joint or involves an alignment rod running through the torsion spring, as well as other mechanisms which facilitate stress relief in the connection between the torsion spring and pivot pin.
Patent CA-2296975-C (CA)
Inventor: RING CURTIS PHILLIP
IPC: E21B33/04
Filed: 2000-01-24
Granted: 2004-12-14
Abstract: An apparatus for rotating a tubing string within an oil well. The apparatus includes an outer housing having an upper end, a lower end and a generally hollow interior where the lower end may be used to attach the outer housing to the casing bowl of an oil well. The apparatus further includes a drive assembly and a tubing string hanger generally disposed within the interior of the outer housing. The drive assembly has a generally hollow rotating gear mandrel and a drive gear. The tubing string hanger has a lower end for attaching to and supporting a tubing string. The tubing string hanger engages the rotating gear mandrel such that rotation of the rotating gear mandrel causes rotation of the tubing string hanger. The tubing string hanger, and a tubing string attached thereto, may be withdrawn from the oil well and through the outer housing without withdrawal of the rotating gear mandrel or the drive gear.
Patent CA-2301814-C (CA)
Title: Lamine de film charge respirant
Inventor: HAFFNER WILLIAM BELA
IPC: A61F13/15
Filed: 1998-09-15
Granted: 2006-11-21
Abstract: L'invention concerne un laminé (10) barrière respirant qui comporte une première couche de film comprenant un film (4) barrière respirant microporeux; une deuxième (16) couche de film comprenant un film chargé respirant qui comporte d'environ 50 % à environ 70 % en poids de matière de charge et un polymère amorphe tel qu'un polymère d'éthylène élastomère présentant une densité inférieure à 0,89 g/cm<3>; et une troisième couche fibreuse comprenant une couche (22) extérieure respirante, tel un voile non tissé de fibres filées-liées. Les couches multiples peuvent être laminées thermiquement, le laminé présentant une résistance à la séparation supérieure à 200 grammes et un taux de transmission de la vapeur d'eau (WVTR) supérieur à 300 g/m<2>/jour.
Patent CA-2305133-C (CA)
Inventor: ROGERS WILFRED R
IPC: H01R25/14
Filed: 1997-11-20
Granted: 2004-07-20
Abstract: An extruded track or base (30) has exposed conductor segments (L1, L2) molded into the polymeric base (30b). A socket defining adaptor (10) is releasably secured to the base in any location therealong by twisting it through only 45 degrees or less.
Patent CA-2305410-C (CA)
Title: Artificial dura mater and process for producing dura mater
Inventor: YAMADA KEISUKE
IPC: A61L27/18
Filed: 1998-10-05
Granted: 2007-08-21
Abstract: The present invention provides an artificial dura mater characterized by comprising at least a sheet of a biodegradable and bioabsorbable synthetic polymer and having a storage modulus at ordinary temperature of from 1 x 10 7 to 5 x 10 8 (Pa); and a process for producing an artificial dura mater characterized by dissolving a lactide/ .epsilon.-caprolactone copolymer (in a molar ratio ranging from 40/60 to 60/40) in a solvent, filtering the resultant solution and casting the same followed by air drying.
Patent CA-2307103-C (CA)
Title: High pressure fuel supply system for natural gas vehicles
Inventor: NOBLE STEPHEN DUNCAN
IPC: F04B37/02
Filed: 1998-11-06
Granted: 2007-10-23
Abstract: This invention relates to a medium and high pressure liquid natural gas fuel system for internal combustion engines and for other cryogenic systems. A cryogenic pump comprising: (a) a vessel for containing compressed gas and liquid; (b) a first chamber in said vessel with an inlet therein for receiving gas and liquid; (c) a second chamber communicating with said first chamber for receiving and dispelling gas and liquid; (d) a third chamber communicating with said second chamber for receiving and dispelling gas and liquid; (e) a reciprocating means separating said first, second and third chambers from one another and for drawing and compressing gas and liquid in any one of the first, second and third chambers; (f) one-way inlet means for enabling gas and liquid to pass into the first chamber (g) one-way means between said first and second chambers for enabling gas and liquid to pass from said first chamber to said second chamber, (h) one-way means for enabling gas and liquid to return from the second chamber to the first chamber; (i) one-way means between said second and third chambers for enabling gas and liquid to be passed from said second chamber to said third chamber; and (j) one-way means for enabling gas and liquid to be expelled from said third chamber to the exterior of the vessel. The invention also relates to a single action suction and double action discharge pump which can be readily removed from a confined space.
Patent CA-2309941-C (CA)
Inventor: MCKEE JIM
IPC: E04D13/17
Filed: 2000-05-29
Granted: 2009-07-28
Abstract: A vent for venting a building enclosure having a perimeter flange having a nailing means being made of a material with a low coefficient of thermal expansion, such as for example sheet aluminum. The vent further includes a grill structure and a cap. The cap is made from dent resistant plastic to facilitate mass production and low return rates. In a preferred form of the invention the grill structure is also plastic and is molded onto the low coefficient of thermal expansion nailing means. A method of molding the grill structure onto the nailing means is also shown.
Patent CA-2317192-C (CA)
Title: Clip with flexible locking arms
Inventor: KWILOSZ MARK J
IPC: F16L3/13
Filed: 2000-08-31
Granted: 2003-11-25
Abstract: The clip includes two locking arms with proximal segments joining the outer periphery, distal segments forming a tube pocket, and hinge elements between the proximal segments and the distal segments. The distal segments include outwardly turned locking elements. An interior frame joined to said outer periphery includes locking pockets complementary to the locking elements. A tube pocket is formed between the distal segments of the locking arms and a portion of the interior frame. As the distal segments of the locking areas flex outwardly in response to the insertion of a tubular element, the outwardly turned locking elements are urged into the locking pockets.
Patent CA-2317553-C (CA)
Inventor: MURRAY GEOFFREY NEIL
IPC: E21B17/00
Filed: 1999-01-05
Granted: 2007-06-12
Abstract: A drill pipe (1; 12) has a journal (2; 15) formed thereon. Integrally formed stop collars (10, 11; 16, 17) are provided at each end of the journal (2; 15). The arrangement enables rotatable tools (18) to be fitted directly to a journal (2; 15) to reduce friction between the rotatable tool (18) and the journal (2; 15). The journal (2; 15) may be of a substantially greater length than the length of the rotatable tool (18) to facilitate lubrication and cooling. Alternatively removable stop collars (30; 31) are secured adjacent the ends of a journal (28) formed on the drill pipe (25). Methods of forming the journal surface (2; 15) during manufacture of a drill pipe are disclosed.  There are also disclosed methods for reconditioning an existing drill pipe (20) to form a journal (21) thereon.
Patent CA-2317830-C (CA)
Inventor: GRAHAM LISA
IPC: B01D45/08
Filed: 2000-09-08
Granted: 2009-10-20
Abstract: Particles in a fluid flow are concentrated by a combination of electrical charging and focussing and passage through a virtual impact concentrator. The fluid is passed through an electrical charging section and an electrical focussing section and then to a virtual impact concentrator. The majority of charged particles in a selected size range are collected through a minor discharge passage extending axially from the virtual impact concentrator. The invention is particularly suitable for sampling engine exhaust gases.
Patent CA-2320047-C (CA)
Inventor: DELVAUX PIERRE
IPC: B01D39/08
Filed: 1999-01-25
Granted: 2004-04-06
Abstract: There is provided a filtration and distribution device for a molten metal, which is in the form of a bag having parts made of a solid heat-resistant fabric and open areas made of an open weave heat-resistant fabric. At least some of the parts made of the solid heat-resistant fabric are replaced by rigid parts made of a moldable or thermo-formable composite consisting of an open weave heat-resistant fabric embedded into a matrix made of a heat-resistant inorganic material compatible with the open weave heat-resistant fabric. Preferaby, the open weave heat-resistant fabric forming the open areas of the bag, is made of yarns that are rigidified and protected by application thereto of a heat-resistant coating. This coating is preferably made of a heat-resistant inorganic material applied by spraying or dipping after the yarns are weaved. The rigidification can be achieved naturally or by thermal treatment. There is also provided a distribution device for a molten metal, which comprises a hollow body provided with an outlet connectable to a molten metal feed pipe and at least one outlet through which the molten metal fed into the body may escape. This hollow body is made of the very same moldable and thermo-formable composite already mentioned hereinabove. Thanks to its structure, this device can be immersed into the molten metal and thus used as a diffuser.
Patent CA-2322302-C (CA)
Inventor: WATTS ROBERT JOHN
IPC: F22D11/02
Filed: 2000-10-05
Granted: 2009-12-08
Abstract: A steam-raising system comprising a boiler having (a) a passageway for water and/or steam, (b) an inlet to the passageway through which water is introduced continuously for given periods when the boiler is in use, (c) a burner to heat the passageway from the outside thereof, and (d) an outlet from the passageway from which steam emerges continuously as water is introduced through the inlet. The system further comprises a pump connected by a flow-path to the said inlet to pump water thereto along the said flow-path. The pump is a variable-flow-rate pump constructed to provide a flow-rate through it which is substantially independent of its downstream pressure.
Patent CA-2323099-C (CA)
Title: Correction of signal-interference ratio measurements
Inventor: POPOVIC BRANISLAV
IPC: H04B1/04
Filed: 1999-03-05
Granted: 2007-06-12
Abstract: Using measured estimates of received signal energy and interference values, a measured signal-to-interference ratio (SIR) value is determined. The measured SIR value is corrected for non-linearity to obtain a corrected SIR value using a correction function. That corrected SIR value may then be used in any number of applications such as to control the transmit power of mobiles in a mobile radio communications system.
Patent CA-2325175-C (CA)
Inventor: RAWLINGS CLIFFORD CRAIG
IPC: B60B29/00
Filed: 2000-11-03
Granted: 2009-01-13
Abstract: An apparatus particularly designed to receive, support, transport and/or position tire and wheel assemblies of vehicles, particularly large vehicles, is described. One embodiment of the apparatus comprised a lower frame, an upright support coupled to the lower frame, a vertical positioning device, and a tire and wheel assembly support operably coupled to the vertical positioning device.  Working embodiments included a lower U-shaped frame, generally having plural casters attached thereto, for easy positioning about tires attached to vehicles. A  method for receiving, supporting, transporting and positioning tire and wheel assemblies also is described. The method comprises first providing a suitable apparatus. The apparatus is positioned adjacent a tire and wheel assembly of a vehicle. The vertical position of the tire and wheel support assembly is adjusted to engage the tire and wheel assembly. The tire and wheel assembly is then placed on the apparatus, which supports the tire and wheel assembly. This allows an operator to transport the assembly to another location, work on the assembly while it is supported by the apparatus, and/or rotate the assembly while supported by the device for inspection and repair.
Patent CA-2327149-C (CA)
Title: Blade with optimized vibration behaviour
Inventor: HUEBNER NORBERT
IPC: F01D5/14
Filed: 2000-11-29
Granted: 2005-03-15
Abstract: Blade with optimized vibration behaviour for turbomachinery components in an axial type of construction, having a solid, thin and elongated blade body.      At a distance from the radially inner blade-body end and the radially outer blade-body end, at least one plate-like rib which is disposed in an upright position on the blade-body surface and is oriented in a neutral manner with regard to the flow is integrally connected to the blade body on the suction and/or pressure side.
Patent CA-2330061-C (CA)
Title: Nutritionally complete low ph enteral formula
Inventor: MAZER TERRENCE B
IPC: A23L33/00
Filed: 1999-04-30
Granted: 2008-01-08
Abstract: This invention is directed to a low pH nutritional formula that contains hig h levels of macronutrients, vitamins and minerals. The pH of the enteral formula is from about 3.0-4.6 and delivers at least 25 % of t he RDI for selected vitamins and minerals in a 237 ml. serving. The enteral formula uses a stabilizing system comprising a high methoxy pect in to stabilize the protein and a unique process to produce the formula.
Patent CA-2332813-C (CA)
Inventor: HENG MADALENE C Y
IPC: A61G10/04
Filed: 1998-05-26
Granted: 2004-08-17
Abstract: A disposable hyperbaric oxygen chamber (16) which is constructed of a flexible, thin-walled, polyethylene plastic bag which is of a size to permit the entry of almost the entire body of an animal, most frequently that of a human, within the bag. The mouth (20) of the bag is pleated (28) so the pleats can be bunched together into localized bulges to concentrate a volume of oxygen over an area of a wound such as a skin ulcer, lesion, or injury.
Patent CA-2334419-C (CA)
Title: A method and an apparatus for thermally coating the cylinder barrels of a combustion engine
Inventor: KELLER SILVANO
IPC: C23C4/12
Filed: 2001-02-06
Granted: 2004-12-21
Abstract: The invention provides a method and an apparatus for thermally coating the cylinder barrels of a cylinder block of a combustion engine. During the coating operation, air flows through the cylinder bore whose barrel is to be coated with a flow velocity of between 7 m/s and 12 m/s. This air flow is generated by means of extraction, whereby the air is extracted from the bottom of the cylinder bore through the crankcase of the cylinder block. For extracting the air, a plurality of extraction collars are provided that are connected to an extraction fan and are moved from the bottom through the crankcase to the lower end of the cylinder bores. During the coating operation, the pressure of the air flowing through extraction conduits to the extraction fan is measured and the value of the velocity of the air flow through the cylinder bore is calculated. An adjustment mechanism controls air chokes in the air conduits in response to the calculated flow velocity present in the cylinder bores.
Patent CA-2335330-C (CA)
Title: Method and apparatus for the beneficiation of ores
Inventor: MACKIE DAN
IPC: C22B3/04
Filed: 2001-02-09
Granted: 2011-01-04
Abstract: The invention provides an apparatus for treating a particulate ore for the recovery of contained values therefrom. The apparatus has a tank for receiving a liquid, the tank having a feed end and a discharge end and a bottom means for feeding the particulate ore to the tank at the feed end, and a manifold head tank for receiving the liquid for fluidizing the particulate ore. The apparatus also includes distribution means for intermittently distributing the liquid in the tank, means for withdrawing the ore particles at the tank discharge end, and means at the bottom of the tank at the base of the bed of coarse particulate material for withdrawing the liquid therefrom.
Patent CA-2336244-C (CA)
Title: Thermocouple for use in gasification process
Inventor: POWELL DAVID L JR
IPC: G01K1/08
Filed: 1999-06-25
Granted: 2009-10-13
Abstract: An improved apparatus comprising a thermocouple for measuring the temperature in a gasification process is provided. The improvement comprises a sapphire envelope for enclosing at least a portion of the thermocouple. The sapphire envelope may be in the form of a sapphire sheath fitted over the thermocouple. The apparatus may also comprise a thermowell, with the sapphire envelope being provided by the thermowell.