baber/WOPTO huggingface dataset:
Patent CA-2208080-C (CA)
Title: Acetylation of lignocellulosic fibres
Inventor: RICHARDS DAVID IAN
IPC: C08H8/00
Filed: 1995-12-18
Granted: 2006-11-28
Abstract: This invention relates to a process for acetylation of lignocellulosic fibre s (LF) using an acetylating agent comprising acetic anhydride at a temperature of above 140 .degree.C and a pressure of 100-150 kPa wherei n raw or substantially raw LFs are treated with a superheated acetylating agent comprising at least 20 % w/w acetic anhydride for a durati on of at least 1.5 minutes in an acetylation reactor (3), the treatment with superheated acetylating agent also ensuring that the acetylat ed LFs are substantially free from occluded, adsorbed or absorbed acetylating agent, the amounts of which are less than 5 % w/w of the acetylated LFs recovered from the base of a circulation cyclone (5), so as to substantially acetylate the LFs to achieve a weight gain of at leas t 2 %. The LFs may optionally be pre-treated, prior to being treated with the superheated acetylating agent, with a liquid acetylating agent, preferably by spraying, for a very short period of time.
Patent CA-2209875-C (CA)
Inventor: DEWEY GEORGE G
IPC: B25C1/00
Filed: 1997-07-09
Granted: 2001-06-05
Abstract: A fastener detection system is provided for both internal combustion and powder actuated fastener driving tools, and similar powered fastener driving tools. A sensor disposed at a portion of a fastener supply path detects the presence or absence of a fastener. In the combustion tool, either or both of fuel delivery and combustion ignition are disabled when no fastener is detected. In the powder actuated tool an indicator notifies an operator when the sensor detects the absence of a fastener. The indicator may also be incorporated into the combustion tool.
Patent CA-2210951-C (CA)
Title: Modified thermostable dna polymerase
Inventor: GELFAND DAVID HARROW
IPC: C12Q1/6848
Filed: 1997-08-01
Granted: 2009-02-10
Abstract: The invention provides thermostable DNA polymerase enzymes that comprises the amino acid sequence SerGlnIleXaaLeuArgXaa (SEQ ID NO: 1), wherein "Xaa" at position 4 of this sequence is any amino acid residue but not a glutamic acid residue (Glu), preferably a glycine residue and "Xaa" at position 7 of this sequence is a valine residue (Val) or an isoleucine residue (Ile). The thermostable DNA polymerases of the invention have enhanced efficiency for incorporating unconventional nucleotides, such as ribonucleotides, into DNA products and are advantageous in many in vitro synthesis applications. Such enzymes are particularly useful for use in nucleic acid sequencing protocols and provide novel means for DNA sequence analysis with cost and efficiency advantages. Also claimed are nucleic acids encoding said polymerases, vectors and hoste cells comprising such a nucleic acid, as well as compositions for use in a DNA sequencing reaction, kits and methods for sequencing including such polymerases.
Patent CA-2213124-C (CA)
Inventor: MISSLITZ ULF
IPC: C07D263/32
Filed: 1996-02-13
Granted: 2005-04-26
Abstract: The invention concerns benzoyl derivatives of formula (I) in which the substituents have the following meanings:      L and M represent hydrogen, C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkinyl, C1-C4 alkoxy (these groups being optionally substituted by one to five halogen atoms or C1-C4 alkoxy), halogen, cyano, nitro, a -(Y)n-S(O)m R7 or -(Y)n-CO-R8 group;      Z represents a five to six-membered heterocyclic saturated or unsaturated group containing one to three heteroatoms selected from the group comprising oxygen, sulphur and nitrogen and which can optionally be substituted by halogen, cyano, nitro, a -CO-R8 group, C1-C4 alkyl, C1-C4 alkyl halide, C3-C8 cycloalkyl, C1-C4 alkoxy, C1-C4 alkoxy halide, C1-C4 alkyl thio, C1-C4 alkyl thio halide, di-C1-C4 alkyl amino, phenyl optionally substituted by halogen, cyano, nitro, C1-C4 alkyl or C1-C4 alkyl halide, or an oxo group which can be present in the tautomeric form as a hydroxy group, is substituted or, together with a condensation-bound phenyl ring which is optionally substituted by halogen or, cyano, nitro, C1-C4 alkyl or C1-C4 alkyl halide, with a condensation-bound carbocycle or with a condensation-bound second heterocycle which can optionally be substituted by halogen, cyano, nitro, C1-C4 alkyl, di-C1-C4 alkyl amino, C1-C4 alkoxy, C1-C4 alkoxy halide or a C1-C4 alkyl halide, forms a bicyclic system; Y represents O or NR9; n is 0 or 1; m is 0, 1 or 2; R7 represents C1-C4 alkyl, C1-C4 alkyl halide or NR9R10; R8 represents C1-C4 alkyl, C1-C4 alkyl halide, C1-C4 alkoxy or NR9R10; R9 represents hydrogen or C1-C4 alkyl; R10 represents C1-C4 alkyl; Q represents a cyclohexane-1,2-dione ring connected at position 2 and of formula (II) in which R1, R2, R4 and R6 represent hydrogen or C1-C4 alkyl, R5 represents hydrogen, C1-C4 alkyl or a -COOR10 group, R3 represents hydrogen, C1-C4 alkyl, C3-C6 cycloalkyl, these groups optionally including one to three of the following substituents: halogen, C1-C4 alkyl thio, C1-C4 alkoxy, or R3 represents tetrahydropropanyl-3, tetrahydropropanyl-4 or tetrahydrothiopyranyl-3, or R3 and R5 together form a bond or a three to six-membered carbocyclic ring. The invention also concerns standard agricultural salts of compounds of formula (I) usually utilized in agriculture.
Patent CA-2219685-C (CA)
Inventor: JAMIESON DONALD REGINALD
IPC: F24B1/18
Filed: 1997-10-28
Granted: 2006-12-19
Abstract: A draft hood is provided for mating alignment with a fireplace assembly. The mating alignment is facilitated by the location of alignment hardware fixed to the rear surface of the fireplace and to the inside of the draft hood. In use the hardware permits alignment of the draft hood in a fireplace enclosure without the need to see the fitting, without the need for a long runin slide, and without the need vertically to pivot the draft hood on installation or to pull the flue termination forward of the firebox flue before attachment. For this purpose an updraft detection warning spill tube may also function as one of the alignment fittings since it is, due to its function, located near or at the junction of the draft hood and fireplace.
Patent CA-2219938-C (CA)
Inventor: BAFFORD RICHARD ANTHONY
IPC: B32B7/12
Filed: 1997-10-31
Granted: 2001-02-06
Abstract: This invention relates to improved flexible laminates formed from at least one corona treated polyolefin or polyester film bonded to another polymeric or cellulosic film via an aqueous based laminating adhesive. The improvement in the flexible laminates resides in the aqueous based laminating adhesive used to bond the respective films. The aqueous based laminating adhesive is comprised of an acrylic interpolymer prepared by emulsion polymerizing alkyl (meth)acrylates, .alpha.-.beta. unsaturated olefins, such as styrene and suitably substituted styrenes, and/or .alpha.-.beta. unsaturated nitriles, such as acrylonitrile with a glycidyl (meth)acrylate and having the pendent epoxy group converted to the hydroxy amine. The preferred pendant units are hydroxy propylamine groups.
Patent CA-2222150-C (CA)
Inventor: HILL JOHN W
IPC: B25J1/12
Filed: 1996-06-05
Granted: 2008-09-16
Abstract: L'invention concerne un ensemble manipulateur (2) servant à maintenir et à manipuler un instrument chirurgical (14) dans un système de télérobotique. L'ensemble manipulateur comprend un élément de maintien de l'instrument accouplé de façon amovible à un ensemble d'entraînement de sorte que l'élément de maintien puisse être stérilisé. Cet ensemble manipulateur comprend en outre un élément détecteur de force (52) monté de façon distale par rapport à l'élément de maintien et à l'ensemble d'entraînement pour détecter les forces exercées sur l'instrument chirurgical et donner des indications en retour au chirurgien. L'invention concerne également un support d'instrument servant à bloquer automatiquement des broches de montage sur l'instrument à l'intérieur de fentes de blocage sur l'élément de maintien de l'instrument afin d'accoupler de façon amovible l'instrument et son élément de maintien. En effectuant un mouvement de rotation de verrouillage/déverrouillage sur l'élément de maintien, le chirurgien peut rapidement engager divers instruments dans l'élément de maintien et les désengager, pendant une intervention chirurgicale, par exemple une chirurgie ouverte, une laparoscopie ou une thoracoscopie.
Patent CA-2224638-C (CA)
Inventor: HANDLEY RICHARD ARNOLD
IPC: E21B19/14
Filed: 1997-12-12
Granted: 2004-02-24
Abstract: An improved pipe handling apparatus, which incorporates a catwalk assembly and trough, the trough portion of which is movable at a proximal end thereof to allow positioning proximate a rig floor to present drill pipe, collars and the like thereto. The assembly also receives drill pipe and the like from the rig floor for subsequent handling by the catwalk assembly. The assembly has a kicker assembly for ejecting pipe. In a further refinement, a pivoting leg member is provided which is releaseably coupleable to a distal end of the trough to permit raising of the trough. In another refinement, an integrated dump assembly may further be provided to receive pipe which has been ejected from the trough.
Patent CA-2228914-C (CA)
Inventor: CHEUNG JOSEPHINE HO-WAH
IPC: B02C23/06
Filed: 1996-07-12
Granted: 2002-08-27
Abstract: A grinding aid and an enhanced roll press method of grinding granulated blast furnace slag by treating the slag feed of the roll press with from about 0.002 to 0.2 weight percent of polyacrylic acid or its alkali metal salt in combination with up to about 4 weight percent water.
Patent CA-2230405-C (CA)
Inventor: FRIESEN HAROLD WAYNE
IPC: H01B11/02
Filed: 1998-02-24
Granted: 2001-02-06
Abstract: A cabling media which is suitable for high performance data transmission includes a plurality of metallic conductors-pairs, each pair including two plastic insulated metallic conductors which are twisted together. The present invention describes how the selection and incorporation of metallic conductors having different diameters within a single communication cable can significantly enhance the operational performance of the cable. More specifically, given a first conductor-pair having a certain conductor diameter and twist length, and at least one other conductor-pair with a different twist length, the present invention purposely selects metallic conductors for this other conductor-pair with a different diameter than that of the first conductor-pair so as to ensure that the insertion loss exhibited by the additional conductor-pair is essentially equal to the insertion loss exhibited by the firstconductor-pair. The differing conductor diameters allows compensation for the variance in insertion loss from one conductor-pair to the next due to changes inthe twist length employed for the plurality of conductor-pairs. Additionally, it is described herein that the insulation thickness of the conductors may be altered from conductor-pair to conductor-pair to ensure that the characteristic impedance measured for the additional conductor-pair is essentially equal to the characteristic impedance measured for the first conductor-pair. As a result of the particular selection of conductors with differing diameters and/or insulation thicknesses for at least two of the conductor pairs, the operational performance of the resulting cable is improved.
Patent CA-2230615-C (CA)
Title: Impression system for an implant end protruding from the human tissue structure
Inventor: GRANDE VINCENZO
IPC: A61C9/00
Filed: 1997-01-31
Granted: 2000-05-30
Abstract: The impression system comprises an impression cap (4) for transferring an end, protruding from a human tissue structure, of an implant (1) which is fitted in the human body, including possible superstructures, to a master cast.      The outwardly directed implant end has an undercut contour on its outside, and the impression cap (4) has a geometry which complements the undercut contour and engages therein.      The undercut contour is formed either by an implant geometry tapering in a trumpet shape towards the implant bed, or by a recess near the implant end. Taking an impression and producing a master cast are greatly simplified with the impression system. In addition, the actual geometrical situation on the patient can be transferred to the master cast with greater precision.
Patent CA-2233838-C (CA)
Title: Epl scheduled price verification system and method
Inventor: ZIMMERMAN TERRY L
IPC: G06Q10/02
Filed: 1998-04-01
Granted: 2009-06-30
Abstract: A scheduled price verification system and method which ensure that a scheduled price change has been scheduled for an electronic price label (EPL) associated with an item. The system includes a storage medium for storing an EPL data file and a spool file, and a computer. The computer executes a scheduled price verifier program which reads the EPL data file to obtain identification information for the item associated with the EPL, reads a price file to obtain a new price and a time that the new price is to be effective, reads the spool file after the time to determine whether it contains a record of the one price change to the new price for the EPL, and schedules a price change message containing the new price if the spool file does not contain the record of the one price change to the new price for the EPL.
Patent CA-2234980-C (CA)
Inventor: GOODMAN SIMON LAWRENCE
IPC: G01N33/68
Filed: 1996-10-14
Granted: 2009-05-05
Abstract: The invention relates to compounds of the formula (I) R1-Q1-X-Q2-R2, in whic h: Q1, Q2, each independent of one another, are missing or are -NH-(CH2)n-CO-; R1, R2, each independent of one another, are missing or are cyclo-(Arg-Gly-Asp-Z), wherein Z is missing in the side chain of Q1 or Q2 or if Q1 and/or Q2 are missing, is bound to X, at lea st one of the groups R1 or R2 always having to be included; X is -CO-R18-CO-, and if R1-Q1- or R2-Q2- are missing is R10, R13, R16, Het-CO or a fluorescent pigment residue linked through a -CONH-, -COO-, -NH-C(=S)-NH-, -NH-C(-O)-NH-, -SO2NH- or -NHCO- bond; and Z, R10, R13 , R16, R18, Het and n have the meanings given in claim 1. The invention also relates to the salts of said compounds. Said compounds and their salts can be used as integrin inhibitors, in particular for the prevention and treatment of circulatory diseases, thrombosis, heart infarct, coronary heart diseases, arteriosclerosis, angiogenic diseases and in tumour therapy.
Patent CA-2235673-C (CA)
Inventor: TRIGIANI PHIL
IPC: F16N37/02
Filed: 1997-06-06
Granted: 2002-08-13
Abstract: L'invention concerne un procédé et un appareil pour charger avec un fluide (44) approprié un système fermé (40) à fluide sous pression. Ledit procédé consiste à: a) (16) brancher au système (40) un conteneur (42) à la pression atmosphérique et fermé, qui renferme une quantité prédéterminée dudit fluide (44); b) (18) expulser mécaniquement le contenu hors du conteneur (42) de sorte qu'il soit envoyé dans le système (40) en train d'être rechargé; et c) (19) débrancher le conteneur (42). De préférence, le conteneur (42) est une cartouche cylindrique ayant un piston moulé étanche dans celle-ci et servant à déplacer le contenu de la cartouche. Le procédé et l'appareil permettent de recharger efficacement différents systèmes sous pression, tels que des tuyauteries de conditionnement d'air, des tuyauteries de réfrigération ou des injecteurs de colorants avec différents fluides, tels que des huiles, des produits chimiques ou des colles.
Patent CA-2238356-C (CA)
Title: Compliant foil fluid film thrust bearing with a tilting pad underspring
Inventor: BOSLEY ROBERT W
IPC: F16C27/02
Filed: 1998-05-22
Granted: 2008-09-09
Abstract: A compliant foil fluid film thrust bearing including a thrust disk rotor, fluid foils, spring foils, a thrust plate, and a housing thrust surface The non-rotating but compliant fluid foils, mounted on the thrust plate and/or housing thrust surface and positioned adjacent to the thrust disk, have open faced channels that induce regenerative vortex flow patterns in the process fluid. The multiple spring foils together provide a tilting pad support for the fluid foils but allow them to follow the axial and overturning motion of the thrust disk The interaction of the tilting pad underspring supports and the circumferential fluid pressure gradients in the process fluid between the fluid foils and the thrust disk rotor assure that the fluid foils will assume hydrodynamically efficient convex shapes on the surfaces adjacent to the rotor regardless of the load applied to the thrust bearing
Patent CA-2238457-C (CA)
Title: Refrigerator shelving assembly
Inventor: AVENDANO JOSE G
IPC: F25D25/02
Filed: 1998-05-22
Granted: 2003-03-04
Abstract: A refrigerator shelving assembly includes a universal frame adapted to support various different shelving units thereon.  The frame is defined by interconnected front, rear and side frame members, and preferably a pair of intersecting cross frame members. Each of the frame members, in at least an opposing pair of the front, rear and side frame members, is provided with a ledge portion located in a first plane and a trough portion arranged below the first plane at a position between the ledge portions and a respective cross frame member.  Each of the cross frame members has an upper surface also located in the first plane. With this construction, the frame can universally support various types of shelving units, including a basic shelf constituted by a plate of glass or a premium shelf formed by encapsulating an annular portion of a plate of glass by a rim defining element that extends below a plane defined by the glass plate, upon the cross frame members and either the ledge or trough portions of the shelving assembly.  Furthermore, the frame members can carry guide rails for slidably supporting one or more refrigerator bins below a selected shelving unit.
Patent CA-2241449-C (CA)
Inventor: HEWITT FREDERICK G
IPC: G01N21/88
Filed: 1996-12-26
Granted: 2004-01-27
Abstract: A method of establishing a lighting system and viewing environment for conduct of visual task is provided. The method generally includes steps of providing a visual performance lab (1) which includes a visual performance test system (2) wherein the test system (2) includes an observation or viewing station (3), task positioning equipment (5) and lighting equipment (6, 7, 8).
Patent CA-2241484-C (CA)
Title: Method for manufacturing knitted items with a passage for the insertion of support elements, and item obtained with the method
Inventor: LONATI TIBERIO
IPC: D04B9/42
Filed: 1998-06-22
Granted: 2007-11-13
Abstract: A method for manufacturing knitted items, particularly for manufacturing items of underwear, with a passage for the insertion of support wires or other insertion elements, in circular knitting machines, and an item obtained with the method. The method consists in forming the passage for the insertion of the wire or other insertion element in an intermediate production step during the knitting of the item, by knitting additional row portions with a preset number of needles alternated with needles excluded from knitting during the formation of the additional rows. In this manner, on one side of the item, a tunnel is obtained which is part of the item and inside which it is possible to insert a support wire or other insertion elements.
Patent CA-2245067-C (CA)
Inventor: ARTHOFER FRANCOIS
IPC: G07C1/24
Filed: 1998-08-13
Granted: 2006-02-14
Abstract: The present invention is directed to a system for timing races. The system is installed in the extension of a line across which objects or persons pass such system and includes an optical device for projecting an image of such line onto a photosensitive sensor, means for processing the image signal and display means. The invention is also directed to a method for adjusting the alignment of such system with a line across which objects or persons pass such as a finish line of a race.
Patent CA-2248420-C (CA)
Title: Improved method for phase unwrapping in imaging systems
Inventor: GLASS CARTER M
IPC: G01S13/90
Filed: 1998-09-25
Granted: 2002-01-22
Abstract: An improved method is provided for phase unwrapping in coherent imaging systems which use two complex images to form an interferogram. In the improved method, the interferogram of phase differences is divided into a relatively large plurality of transform blocks, wherein each transform block comprises a matrix of o x p data samples, with o and p = 2" + 1, and n being an integer greater than 2. Further, adjacent transform blocks are preferably defined to partially overlap. The wrapped phase values of adjacent data samples within each transform block are then compared and if the difference therebetween exceeds a predetermined value, the entire block of data samples may be discarded for further use. Data samples of the retained transform blocks are then unwrapped to obtain phase values via an unweighted, least-squares technique implemented by Fast Fourier Transform.  Using a known height value corresponding with a single data sample, an integration constant can be determined for a corresponding first transform block. Path-following may then be used to determine an integration constant for the other retained transform blocks. The phase values and integration constants may then be employed to determine height values for the interferogram. The disclosed method yields enhanced accuracy with reduced computational burden.
Patent CA-2250376-C (CA)
Title: Waste treatment apparatus and method
Inventor: LEWIS ROBERT W
IPC: B02C23/00
Filed: 1998-10-15
Granted: 2007-05-15
Abstract: Containerized medical waste (12) is treated by shredding, and then passing the shredded material, by means of a screw conveyor (34), through a direct steam impingement stage and a dehydration stage in which the material is brought into contact with a hot surface to vaporize moisture and thereafter passed through a low pressure chamber in which the vapor is drawn off.
Patent CA-2259039-C (CA)
Title: Package having cooked food product packaged in film having food adhesion layer containing high vicat softening point olefin/acrylic acid copolymer
Inventor: RAMESH RAM K
IPC: A22C13/00
Filed: 1997-06-24
Granted: 2002-11-12
Abstract: A packaged product has a film configured around a cooked meat product. The c ooked meat product is adhered to a meat-contact surface of the film. The meat-contact surface of the film comprises an olefi n/acrylic acid copolymer having a Vicat softening point,  in .degree.F, of at least 232 minus 5 multiplied by the weight percent of acrylic acid mer  in the olefin/acrylic acid copolymer. The cooked meat p roduct comprises at least one member selected from the group consisting of sausage,  bologna, mortadella, braunschweiger, and high-water-add ed ham. The olefin/acrylic acid copolymer has been found to adhere well to high  fat/low protein meat products, is orientable for the fo rmation of heat-shrinkable films, and provides a stronger seal than previously avail able olefin/acrylic acid copolymers.
Patent CA-2259240-C (CA)
Title: Microfinishing machine
Inventor: PILLA ANTONIO
IPC: B24B49/00
Filed: 1997-07-15
Granted: 2003-12-30
Abstract: A sizing and finishing machine includes a mechanism for rotating an associat ed workpiece (50) and a first microfinishing belt (16) for selectively contacti ng the associated workpiece (50). The belt (16) has a maximum grit size of 60 microns. A structure is provided for rotatably holding the first microfinishing belt (16) and a housing (42) is provided on which the structu re is mounted. A mechanism moves the first housing (42) and hence the first microfinishing belt (16) toward and away from the associated workpiece (50). The mechanism is timed to the rotation of the associated workpiece (50) to maintain a substantially constant pressure of the first microfinishing belt (16) on the associated workpiece (50). If desired, a second microfinishing belt (16) can be provided with the two housings (42) and their respective belts (16) being separately controlled. The force exerted by the microfinishing belt (16) on the associated workpiece (50) is limited to a pressure of less than approximately 25 psi.