baber/WOPTO huggingface dataset:
Patent CA-2229091-A1 (CA)
Inventor: LONGBOTTOM JAMES R
IPC: E21B7/06
Filed: 1998-02-09
Abstract: A method of completing a subterranean well and associated apparatus therefor provide efficient operation and convenience in completions where production of fluids from a lateral wellbore and a parent wellbore is desired.      In one disclosed embodiment, the invention provides a method whereby a tubular member may be extended from a parent wellbore into a lateral wellbore, without the need of deflecting the tubular member off of a whipstock or other inclined surface. The tubular member may be previously deformed and initially constrained within a housing, so that as the tubular member extends outwardly from the housing, the tubular member is permitted to deflect laterally toward the lateral wellbore.
Patent CA-2230566-A1 (CA)
Inventor: YAMAMOTO MASAHIRO
IPC: B65D5/50
Filed: 1996-09-13
Abstract: A hollow connected body used as a carrier holding a cushioning material, a protective frame, a core for a hollow panel and an adsorber. This connector has a plurality of hollow parts (10) of an arbitrary cross-sectional shape arranged and connected parallel, and comprises a single sheet (a) bent multiple times so as to have a cross section like a figure drawn with one stroke. A hollow connector can have an elasticity and a pressure resistance suiting the use thereof, and have a lower bulk density by properly selecting the material of the sheet (a) and determining the cross-sectional shape and sizes of the hollow parts (10).
Patent CA-2231922-A1 (CA)
Title: Downhole sub with kick pad for directional drilling
Inventor: NOE PAUL
IPC: E21B7/06
Filed: 1998-03-11
Abstract: A downhole drill system comprising a drill string, a drill bit terminating the drill string, a bent sub in the drill string above the drill bit, a motor housing in the drill string above the drill bit and a downhole sub connected within the drill string to the motor housing. The downhole sub comprises an adaptor housing in the drill string above the motor housing, a mandrel connected to the adaptor housing, the mandrel having a shoulder facing the adaptor housing, the mandrel shoulder and the adaptor housing together forming an annular recess, a kick pad mounted for rotation in the annular recess and movable around the annular recess when the mandrel is disengaged from the adaptor housing and a lock mechanism for locking the kick pad in a fixed position relative to the adaptor housing when the mandrel is engaged with the adaptor housing.
Patent CA-2232972-A1 (CA)
Inventor: RODRIGUEZ FERRE JOSE MANUEL
IPC: A63H3/16
Filed: 1998-03-25
Abstract: Two modular parts (1) and (2), of an arbitrary number, combine to form a number of ogival arches (5) (5a) (5b) (5c) which are joined together in line one after the other simulating the rings of a centipede and configuring a tunnel fitted at both ends with flat, vertical parts (17) and (18) representing the centipede's head and tail, with openings (19) and (20) for the children to enter and exit the centipede. This structure is applicable for children's games of the type that allow the children to crawl through the inside or on top of the outside of the tunnel, said structure being easy to assemble and disassemble for storage requiring a small amount of space.
Patent CA-2233220-A1 (CA)
Inventor: RICKLI HANS-RUDOLF
IPC: A43D39/00
Filed: 1996-09-27
Abstract: The invention concerns an installation for the largely automatic manufacture of orthopaedic shoe inserts, the installation comprisisng a device for measuring the sole of the foot, a device for producing the inserts using the results of the measurement and a data-processing unit which takes the measurement results, and processes them, e.g. by smoothing them, if necessary and converts them into control data for the insert-production device. The measurement device scans the sole of the foot essentially line by line, thus establishing the topography of the sole in the form of vertical slices. To this end, one or more electro-mechanical sensors (13) travel in the longitudinal direction over the sole, following its vertical profile. The motion of the sensors (13) is converted by linear potentiometers (25) into electrical signals. The insert-production device has a machining head, e.g. a milling cutter, which is moved in a spiral over the insert blank. The cutter height-control data is determined largely automatically from the sole-measurement results by the data-processing unit.
Patent CA-2233235-A1 (CA)
Title: A trellis encoder for encoding a digital data stream
Inventor: TWITCHELL ED
IPC: H04N19/89
Filed: 1998-03-27
Abstract: A trellis encoder circuit comprises receiving means to receive a stream of digit al bits, loading means for loading M successive data bits into a first data register from one of said receiving means and another data register, N successive data registers, each suc cessive data register connected in series with one of said successive data registers and said first data register, means for cycling the digital bits in the last of said N successive data registe rs into said first data register, first multiplexer means for selecting one of plural sets of digital bi ts from said last data register, means for trellis encoding said one set of digital bits and providing a trellis encoded set of digital bits, and logic means for cycling the digital bits in said successive registers until all the digital bits have been trellis encoded and for reloading said successive registe rs from said stream of digital bits wherein N and M are integers greater than 1.
Patent CA-2233653-A1 (CA)
Inventor: GLANCY TODD P
IPC: C08G67/04
Filed: 1997-02-21
Abstract: Biodegradable poly(ester-anhydrides) designed to display two-stage degradation profiles are described. The presence of the anhydride linkages allows a relatively rapid decrease in molecular weight, the extend of which is governed by the concentration of the anhydride linkages along the chain, followed by possible dissolution and a slower degradation of the remaining oligomers, the rate of which is governed by the composition of the polyester prepolymers.  Methods for the preparation of the poly(ester-anhydrides) and their polyester precursors are also described.
Patent CA-2234173-A1 (CA)
Inventor: SYDANSK ROBERT D
IPC: C09K8/50
Filed: 1996-10-28
Abstract: On utilise un fluide formé de mousse enrichie en polymère pour effectuer des opérations de conditionnement, de reconditionnement et d'arrêt définitif de puits dans des puits pénétrant dans des formations souterraines. Pour produire la mousse on ajoute de manière appropriée un gaz dans une solution aqueuse constituée d'un polymère soluble dans l'eau sensiblement non réticulé et d'un tensio-actif. La solution et la mousse sont sensiblement dépouvues d'agents de réticultaion. La mousse peut être produite à la surface ou dans un puit de forage.
Patent CA-2237568-A1 (CA)
Inventor: R S NEN JUHA
IPC: H04W92/00
Filed: 1996-11-13
Abstract: The invention relates to a synchronous data transmission when the maximum data rate of the traffic channel equals one of the user data rates at the terminal interface. Such a situation may occur for example when a satellite system is connected as a base station system to a mobile system. A mobile station (MS) inserts the terminal interface status information (STATUS) in the redundant parts (REDUNDANT) of the protocol data units (PDU) of the transmission protocol used at the terminal interface and transmits the protocol units through a satellite traffic channel to a land earth station (LES). The land earth station (LES) is arranged to extract said status information from the protocol data units and to restore the original redundancy to the protocol data units.
Patent CA-2238612-A1 (CA)
Title: Laser marking system for gemstones and method of authenticating marking
Inventor: KAPLAN GEORGE R
IPC: B23K26/04
Filed: 1996-11-14
Abstract: A laser microinscribing system includes a Q-switched Nd:  YLF laser (1) with a harmonic converter producing an output of about 530 nm, an optical system including a focussing lens, a gemstone mounting holder (144) that is displaceable along three axes for moving a workpiece (11) such as a gemstone with respect to the optical system so that laser energy is presented to desired positions, an imaging system for viewing the gemstone from a plurality of viewpoints including a top CCD (28) and a side CCD (32), a processor controlling the position of the holder (144) based on marking instructions and a predetermined program, and a storage system (156) for storing information relating to images of a plurality of workpieces. A  rigid frame supports the laser (1), the optical system and the holder (144) to increase immunity to vibrational misalignments.  A secure certificate of authenticity of a marked workpiece (11) is preferably provided having an image of the marking as well as the outline of a girdle of the gemstone.
Patent CA-2242279-A1 (CA)
Inventor: HANSEN TRUMAN LEROY
IPC: C10B7/10
Filed: 1998-08-10
Abstract: This is a process, with the entailing equipment arrangement and machinery, designed to produce charcoal and graphite of selectable varying degrees of volatile content from all types of waste wood, bark, and vegetable matter. The procedures used in the past, or those current or planned for the future are obsolete, time consuming, inefficient, and dangerous, and require vast amounts of investment capital to bring into production. The process I have outline is continuous, 24 hrs. per day seven days a week, safe, non-pollutant, profitable, and requires the minimum capital expenditure necessary to produce a commodity of the highest quality. Instead of the huge vertical, gravity feed retorts, and the attendant costs and dangers they generate, this process is not reliant on gravity in vertical retorts but uses horizontal force fed, oxygen negligent tubes arranged in tiers of rows across the width of the refractoried oven, each tube independently controlled, vented, and monitored and small enough to prohibit massive volumes of exhaust gases at extreme temperatures thus eliminating dangerous conditions. With the requirement of only two people per shift to operate it, the machine is extremely cost efficient. Because it can use any and all wood waste, mixed up with bark in any ratio it is also a complete solution to the forest industry waste proliferation problem in any region with forest based industries. It can use the waste from the harvesting in the bush, to the manufacturing of finished products. It can use various other types of vegetable waste with minor modifications to the raw material handling procedures.
Patent CA-2242311-A1 (CA)
Title: Novel compounds
Inventor: PATEL LISA
IPC: A61K48/00
Filed: 1998-08-27
Abstract: Human p101 polypeptides and polynucleotides and methods for producing such polypeptides by recombinant techniques are disclosed. Also disclosed are methods for utilizing Human p101 polypeptides and polynucleotides in therapy, and diagnostic assays for such.
Patent CA-2242325-A1 (CA)
Title: Fsh and lh separation and purification process
Inventor: LUALDI PAOLO
IPC: C07K14/59
Filed: 1997-11-03
Abstract: A new process, particularly simple and economical, for FSH and LH separation and purification starting from crude HMG preferably urinary, comprising the following steps: optional exhaustion of crude HMG  viral charge in aqueous EtOH; ion-exchange chromatography on weakly basic anionic resins of DEAE type; affinity chromatography on resin having an antraquinone derivative as a ligand; optional ion-exchange chromatography on strongly basic anionic resins. Hormones obtained thereby, in particularly pure form and having high specific activity, may subsequently undergo a depyrogenation step.
Patent CA-2244515-A1 (CA)
Title: Ultrasonic dissection and coagulation system
Inventor: STONE CORBETT W
IPC: A61B18/00
Filed: 1998-08-05
Abstract: An ultrasonic dissection and coagulation system for surgical use is provided. The system includes an ultrasonic instrument, a control module, and a pedal actuator. The ultrasonic actuator has a housing and an elongated body portion extending from the housing. An ultrasonic transducer supported within the housing is operatively connected to a cutting blade by a vibration coupler. The vibration coupler conducts high frequency vibration from the ultrasonic transducer to the cutting blade. The cutting blade has a cutting surface which is angled with respect to the longitudinal axis of the elongated body portion and, thus, with respect to the axis of vibration. A clamp member having a tissue contact surface is positioned adjacent to the blade member and is movable from an open position in which the tissue contact surface is spaced form the cutting surface to a clamped position in which the tissue contact surface is in close juxtaposed alignment with the cutting surface to clamp tissue therebetween. The clamp member and the angled blade combine to enhance contact between tissue and the cutting surface of the blade member.
Patent CA-2244757-A1 (CA)
Inventor: OLIGMUELLER JEFF E
IPC: A01D41/14
Filed: 1998-08-12
Abstract: A harvesting machine includes a feed mechanism configured for being driven in a forward direction to feed crops into the harvesting machine and a reverse drive mechanism for driving the feed mechanism in a reverse direction. The reverse drive mechanism includes a cam surface, a plurality of cam engagement members, and a plurality of pistons connected to the engagement members. One of the cam surface in the plurality of cam engagement members is operatively coupled to the feed mechanism. Controlled movement of the pistons in a first direction forces the cam engagement members into engagement with the cam surface to drive the feed mechanism in the reverse direction. Movement of each of the pistons in a second direction allows the feed mechanism to rotate in the forward direction.
Patent CA-2252462-A1 (CA)
Title: Diffuseur holographique a transmission fabrique et utilise pour assurer une stabilite chromatique laterale dans des systemes d'affichage a ecran a projection arriere
Inventor: WENYON MICHAEL M
IPC: G03B21/62
Filed: 1998-02-11
Abstract: L'invention concerne un écran de projection dont la construction est adaptée pour assurer une stabilité chromatique latérale dans des systèmes d'affichage à écran de projection arrière. Ledit écran de projection (10) comprend une plaque avant rigide (20) transmettant la lumière et un élément diffuseur holographique (100) d'homogénéisation, à transmission, situé à proximité de ladite plaque avant. Ledit élément diffuseur holographique à transmission est conçu de sorte que, lorsqu'une de ses zones est éclairée au moyen d'un faisceau de lumière (116) ayant une longueur d'onde de 400 nm à 700 nm, et arrivant selon un angle d'incidence d'entrée de ± 0· à 30· par rapport à l'incidence normale, ledit élément élément diffuseur produise en transmission un seul lobe de sortie diffus (115) produit dans une zone dudit élément diffuseur ayant une distribution de l'intensité angulaire relative et un format sensiblement identique à ceux des lobes de sortie diffus produits dans sensiblement toutes les zones dudit élément de diffusion holographique à transmission.
Patent CA-2254722-A1 (CA)
Inventor: AMANI MOHAMMAD
IPC: E21B43/12
Filed: 1997-03-26
Abstract: An apparatus for supplying and venting gas to a downhole accumulation chamber (34) that includes a supply valve (70) having an open supply position to supply gas to the chamber (34) and a closed supply position, a vent valve (90) having an open vent position to vent gas from the chamber (34) and a closed position, and an actuator (109) communicating with a source of pressurized fluid (24) at the surface for actuating the supply (70) and vent (90) valves.  The actuator (109) moves the supply valve (70) to the open position and the vent valve (90) to the closed position, and alternately moves the vent valve (90) to the open vent position and the supply valve (70) to the closed supply position. The actuator (109) may include a single hydraulically actuated reciprocating member or a pair of hydraulically actuated reciprocating members. When a pair of reciprocating members is utilized and the apparatus is used in connection with a tubing string having a flowbore, the hydrostatic pressure from the tubing string flowbore may be utilized to provide pressure on one side of each reciprocating member. The apparatus may also include biasing members for biasing each valve to either the open or closed position.
Patent CA-2254818-A1 (CA)
Title: Detergent composition
Inventor: DODD IAN MARTIN
IPC: C11D1/44
Filed: 1997-05-16
Abstract: Detergent composition comprising peroxygen bleach, a bleach catalyst, a nonAQA surfactant and a bis-alkoxylated quaternary ammonium (bis-AQA) cationic surfactant.
Patent CA-2254994-A1 (CA)
Title: A test tube for biological analyses of organic liquids using electro-optical equipment
Inventor: COCOLA FRANCESCO
IPC: G01N21/03
Filed: 1997-05-13
Abstract: The test tube comprises a container body (1) with a cavity (3) which is essentially prismatic and has an essentially rectangular cross section, a cylindrical connecting part (5) for filling, and a flat laminar zone (7) developed as an extension of one of the walls of the said cavity. Information which can be read optically, such as bar codes or the like, may be accommodated on this flat laminar zone (7).
Patent CA-2255549-A1 (CA)
Title: Bluff body premixing fuel injector and method for premixing fuel and air
Inventor: MORFORD STEPHEN A
IPC: F23D14/82
Filed: 1998-12-14
Abstract: A tangential entry premixing fuel injector (10) for a gas turbine engine combustor includes a pair of offset scrolls (18) whose ends define a pair of entry slots (36) for admitting primary combustion air tangentially into a mixing chamber (28) bounded by the scrolls (18) and by longitudinally spaced endplates (14, 16). An array of fuel injection passages (42) extends along the length of the slots. The passage stray is configured to inject a primary fuel nonuniformly along the length of the air entry slots and to control the fuel penetration depth d in proportion to slot height H. The injector also includes a flame disgorging centerbody (48) having a bluff tip (54) longitudinally aligned with the injector's discharge plane (22) and a secondary fuel conduit (80) extending through .the centerbody for discharging a secondary combustible fluid, preferably gaseous fuel, through a series of fuel discharge openings (84) in the tip (54). The flame disgorging centerbody improves fuel injector durability by resisting ingestion of combustion flame into the mixing chamber (28) and reliably disgorging any flame that is ingested. The controlled fuel penetration depth reinforces the flame disgorging capability of the centerbody by preventing fuel from penetrating into the slowly moving boundary layer attached to the centerbody (48). The bluff character of the centerbody, in combination with its longitudinal alignment with the fuel injector discharge plane, makes the centerbody capable of anchoring the flame at the discharge plane so that combustion occurs aft of the discharge plane where the combustion flame is unlikely to damage the scrolls or centerbody. Introduction of fuel or fuel and air through the openings in the bluff tip encourage the flame to become anchored to the tip and therefore spatially stabilizes the flame, resulting in additional attenuation of acoustic oscillations and further improved combustor durability. The longitudinally nonuniform injection of primary fuel compensates for any mixing nonuniformities attributable to the flame disgorging centerbody and therefore augments flame stability. The injector and an associated method of premixing fuel and air prior to combustion suppress formation of nitrous oxides, and improve the durability of both the injector and the combustor.
Patent CA-2255969-A1 (CA)
Title: Method and apparatus for properly sequenced hand washing
Inventor: VUONG NHON T
IPC: A47K5/12
Filed: 1998-12-14
Abstract: An apparatus and method for controlling plumbing fixtures includes an electronic control board having a microprocessor that accepts four inputs and produces four outputs. Inputs at other than the microprocessor's operating voltage are converted thereto. Outputs having different voltages are controlled by latching relays. The control board can be used with a Smart Sink that requires a sequenced hand washing. The control board can form a node on a network that monitors and controls the functions of multiple boards throughout a facility.
Patent CA-2257999-A1 (CA)
Title: Stain inhibiting wood sealer
Inventor: SINKO JOHN
IPC: B27K3/52
Filed: 1998-02-11
Abstract: A process of treating wood to reduce the tannin staining of coatings subsequently applied includes the steps of providing a solution of a zirconyl compound in a carrier liquid such as water, applying the solution to a wood surface, and, drying the solution. The pore structure of the wood is modified or sealed so that staining of coating compositions applied subsequently over the surface is reduced. The process is particularly beneficial in cases where the coating composition is a clear or a light-colored latex paint, especially white. The preferred zirconyl compound is zirconyl acetate. The treating solution may be modified by addition thereto of a UV light protective compound and/or fungicide.
Patent CA-2259754-A1 (CA)
Title: Optional multi-ratio gear transmission system
Inventor: WANG JIFENG
IPC: B21B35/02
Filed: 1999-01-18
Abstract: Successive roll stands in a rolling mill are driven at selectively different drive speed ratios by a transmission system having a pair of drive shafts and a least one idler shaft journalled for rotation about parallel axes. First and second gear trains each include intermeshed drive gears freely rotatable on the drive shafts, and a pair of idler gears on the idler shaft; each being in meshed engagement with at least one of the drive gears of each drive train.  Clutches operated to selectively couple the drive gears of the first and second drive trains with their respective drive shafts.
Patent CA-2260004-A1 (CA)
Inventor: DAHLEN JOSEF
IPC: C11B1/06
Filed: 1997-07-03
Abstract: A process of producing glyceride oil having a very low content of non-hydratable phosphatides from fatty seeds and fruits is disclosed. In the process, the fatty material is instantaneously and for a very short time exposed to a high temperature at a controlled water content. The glyceride oil extracted from the thermally treated material has after water-degumming the same low contents of phosphorous, iron, calcium and magnesium as can be achieved by treatment with strong acid and alkali (superdegumming) of a conventionally produced glyceride oil.
Patent CA-2260068-A1 (CA)
Inventor: HEDBERG MATS
IPC: B29C45/00
Filed: 1997-07-11
Abstract: A failsafe interface circuit comprises at least one semiconductor switching circuit (1) with a first link terminal (2), a second link terminal (4) and a control terminal (6). To connect a first and second circuit (8, 10) attached to the first and second link terminal (2, 4), respectively, a potential difference between the control terminal (6) and one of the link terminals (2, 4) is raised above a predetermined threshold value. To avoid any flow of current from the second circuit (10) to the first circuit (8) or vice versa when the interface circuit is powered off, the maximum potential at the first and second link terminal (2, 4) is actively fed back to the control terminal (6) of the semiconductor switching circuit (1).