baber/WOPTO huggingface dataset:
Patent CA-2200285-C (CA)
Inventor: MANN JOHN
IPC: B65G25/04
Filed: 1997-03-18
Granted: 2001-04-24
Abstract: A stoker rod assembly employs a stoker rod having a longitudinally extending bore. A holddown device has a base which is mounted in the trough of the discharger floor, an engagement assembly which is inserted through a slot in the bottom wall of the stoker rod and a connecting part extending between the base and the engagement assembly. The slot comprises a first region having a width selected to allow the passage of the engagement assembly into or out of the bore. A second longitudinally extending region has a width selected to allow longitudinal movement of the connecting part. The width of the engagement assembly is greater than the width of the second region, wherein the engagement assembly is retained in the bore when the engagement assembly is positioned above the second region. Bearing wheels or bearing pads in the engagement assembly slidably engage the internal surface of the stoker rod to hold down the stoker rod as the rod oscillates longitudinally in the trough.
Patent CA-2201208-C (CA)
Title: Foraging unit for avian, mammalian and reptilian species and method of use
Inventor: NURMIKKO MIKA
IPC: A01K5/01
Filed: 1997-03-27
Granted: 2003-03-25
Abstract: A stimulative feeding device for use by animals. The device is designed as a function of the specific animal for which it is intended, with the underlying characteristic that the animal is required to use its natural foraging capabilities to recover food from the device. The device includes a basic structure having a plurality of cavities for retaining a supply of food for the animal. The basic structure is opaque so that the animal cannot see through it to observe some or all of the food. A portion or all of the cavities are hidden so that the animal is required to manipulate any hiding component in order to expose the food. The means for hiding the food can be as varied as the skill level of the animal for which it is intended. The device is not designed to teach the animal, but is instead designed to occupy that animal's time through activities that it would ordinarily carry out while in its natural environment. Although the device may be configured to suit most any animal, particularly those in captivity, attention is directed to avian, mammalian, and reptilian species.
Patent CA-2204783-C (CA)
Title: Procede de production de pastilles de produits de lavage ou de nettoyage par traitement aux micro-ondes et a l'air chaud
Inventor: KLEMM MANFRED
IPC: C11D17/00
Filed: 1995-10-30
Granted: 2007-04-03
Abstract: L'invention concerne un procédé de production de pastilles de produits de lavage ou de nettoyage, faisant appel à la technique des micro-ondes et à un traitement à l'air chaud. Les constituants de produits de lavage et de nettoyage, sous forme de poudre ou de granulés, sont tout d'abord soumis à un traitement aux micro-ondes, permettant d'obtenir des pastilles dont la résistance à la rupture peut être augmentée par un traitement à l'air chaud.
Patent CA-2206964-C (CA)
Title: Process for preparing alkyl halogenodifluoroacetates
Inventor: GILLET JEAN-PHILIPPE
IPC: C07C67/54
Filed: 1997-05-15
Granted: 2002-03-26
Abstract: Preparation of an alkyl halodifluoroacetate of formula CF2X-C(O)-OR (I) involves (i) contacting a 1,1-difluoro-tetrahaloethane of formula CF2X-CY2-Z (II) with an alcohol R-OH (III) at a molar ratio (III)/(II) of not more than 30 (preferably 5 - 20) in the presence of O2 and a small quantity (p) of a chemical free radical initiator (IV); (ii) heating the mixture to at least 40 degrees C (preferably 60-80 degrees C) ; (iii) introducing a major quantity (q) of (IV), continuously or by successive additions whilst maintaining temperature as in (ii) and in the presence of O2, such that the molar ratio (p+q)/(II) is 0.01-0.2 (preferably 0.05 - 0.1) ; (iv) cooling the reaction mixture to ambient temperature, removing the crude product by distillation and distillating in the presence of an aliphatic, cycloaliphatic or aromatic solvent ; and (v) recovering (I). X = F, Cl, Br or I ; R = 1-10C aliphatic hydrocarbyl; Y,Z = Br, Cl or I.
Patent CA-2209614-C (CA)
Title: Dryer-activated fabric conditioning articles with soft polyester substrate
Inventor: ROBERTSON ALVIN MICHAEL
IPC: D06M13/463
Filed: 1995-04-05
Granted: 2001-10-16
Abstract: Dryer-activated fabric softening articles having improved spun-bonded polyester substrates having improved feel characteristics as compared to conventional polyester substrates and/or feel characteristics that are not significantly different from conventional rayon substrates, after use in an automatic clothes dryer, said articles comprising: (A) at least about 5 % fabric conditioning composition comprising fabric conditioning active; and (B) a polyester non-woven fabric substrate prepared from a polyester fiber having a denier of from about 2 to about 6, said substrate having a basis weight of from about 0.52 oz/yd2 to about 0.58 oz/yd2, a thickness of from about 0.16 mm to about 0.22 mm, and, preferably, a tear strength of at least about 3 lbs/in2, preferably from about 4 to about 7 lbs/in2 in the cross direction and from about 3.1 to about 6 lbs/in2 in the machine direction, and "belt fuzz" and "jet fuzz" grades, as described herein, of from about 1.8 to about 2.9, preferably from about 2 to about 2.7, more preferably from about 2.2 to about 2.5, said polyester having improved feel characteristics as compared to conventional substrates of this type, after said article is used in said automatic clothes dryer and after said fabric conditioning composition has been substantially completely removed from said substrate.
Patent CA-2211325-C (CA)
Title: Preparation de clonidine a liberation prolongee
Inventor: HORACEK H JOSEPH
IPC: A61K9/36
Filed: 1995-01-26
Granted: 2006-08-15
Abstract: La présente invention concerne un procédé permettant d'apporter, à un patient qui nécessite un apport de clonidine, une quantité thérapeutique de clonidine pendant une période de temps prolongée. Ce procédé consiste à administrer audit patient une unité posologique orale comportant un mélange homogène d'une quantité thérapeutiquement efficace de clonidine, environ 30 à 70 pour cent en poids d'au moins un éther de cellulose tel que de l'hydroxypropylméthyl cellulose, et environ 30 à 70 pour cent en poids d'une substance inerte telle que de l'amidon de maïs. L'unité posologique orale peut être contenue dans une capsule de gélatine ou peut se présenter sous la forme d'un comprimé.
Patent CA-2214232-C (CA)
Title: Variable rotary engine
Inventor: LINNEL JEAN
IPC: F02B53/00
Filed: 1997-08-27
Granted: 2000-10-10
Abstract: A rotary engine contains a laterally displaceable rotary member which is sealably and slidably engaged by a rotor plate which has been modified for sealing, travels in an eccentric circle along with the rotor, but provides sealing against the rotor using corner seals and surface seals, and is also further sealed against the engine housing so that combustion gasses in the vicinity of the rotor and rotor plate do not escape either between the rotor and rotor plate surfaces nor between the rotor plate surfaces and the engine housing surfaces.  The other end of the rotor rotatably depends from a reducing piston which is sealably engaged against the internal portion of the engine so that it can travel laterally, in order to laterally displace the rotor.  During engine operation, the rotor can be made to be axially displaced or pushed through the rotor plate to lower the effective combustion volume. The reducing piston is physically manipulated from outside of the engine by actuation of a plurality of push-pull rods which connect the reducing piston ultimately to an actuator.   An actuator is used to operate the push-pull plate and a sensor can be utilized to measure the displacement of the push-pull rods and plate to better control the resulting engine displacement.
Patent CA-2220611-C (CA)
Title: Attachment element
Inventor: RASS FRANZ
IPC: F16B43/00
Filed: 1997-11-10
Granted: 2002-01-15
Abstract: A plate-shaped cambered attachment element for attaching a constructional element to a foundation and having a central bore for receiving an anchoring element, an abutment shoulder spaced from the base of the attachment element and extending toward the base, and an edge region which extends toward the plate edge of the attachment element and extends to a plane, extending perpendicular to the axis of the core, at a shallow angle (W).
Patent CA-2221822-C (CA)
Inventor: LUNDBERG ROBERT S
IPC: C04B35/63
Filed: 1996-04-25
Granted: 2001-02-27
Abstract: La présente invention concerne une meule qui contient un abrasif aggloméré dans une matière vitreuse. La partie de cette meule constituée de grains abrasifs comporte un abrasif d'oxyde d'aluminium et sa roue présente une amélioration des caractéristiques de tenue d'arrondi ou de forme et des propriétés mécaniques. Cette invention concerne en outre la composition de liaison qui permet d'améliorer les propriétés mécaniques et de tenue d'arrondi ou de forme avec les grains abrasifs d'oxyde d'aluminium.
Patent CA-2224507-C (CA)
Title: Orthopedic prosthesis employing bone screws and cement
Inventor: BUECHEL FREDERICK F
IPC: A61F2/30
Filed: 1997-12-10
Granted: 2000-05-02
Abstract: A prosthetic system is provided for secure mounting of a prosthetic component to a bone, and particularly to a bone that may be diseased,  damaged or deteriorated.   The prosthetic  system includes a plurality of screws that are mounted to healthy bone stock.  Each screw includes a threaded portion extending from one end and a non-threaded portion extending from the opposed end.  The non-threaded portion includes a discontinuous surface configuration thereon.    Ends  of  the  screws  are  positioned to  support  the prosthetic component.  The bone cement is then disposed between the prosthetic component and the bone and in surrounding relationship to portions of the screws that project from the bone.  The cement surrounds and attaches to the protrusions on the screws so that the screws and the cement reinforce one another in response to loads imposed thereon during use of the prosthesis.
Patent CA-2225225-C (CA)
Title: Satellite antenna system
Inventor: SAUCIER MARCEL
IPC: H01Q15/14
Filed: 1997-12-18
Granted: 2005-06-28
Abstract: A stationary antenna for receiving non-geostationary satellite signals comprised of a plurality of supporting members and an array of reflective members comprising an upper and a lower array of reflecting members for focussing the signals on a focal axis for processing.
Patent CA-2228958-C (CA)
Inventor: VANSTONE SCOTT A
IPC: G07F7/12
Filed: 1998-02-03
Granted: 2016-05-03
Abstract: A method of verifying a pair of correspondents in electronic transaction the correspondents each including a first and second signature schemes and wherein the first signature scheme is computationally more difficult in signing than verifying and the second signature scheme is computationally more difficult in verifying than signing. The method comprises the step of the first correspondent signing information according to the first signature scheme and transmitting the first signature to the second correspondent, the second correspondent verifying the first signature received from the first correspondent, wherein the verification is performed according to the first signature scheme. The second correspondent then signs information according to the second signature scheme and transmits the second signature to the first correspondent, the first correspondent verifies the second signature received from the second correspondent, wherein the verification is performed according to the second signature algorithm; the transaction is rejected if either verification fails. The method thereby allows one of the correspondents to participate with relatively little computing power while maintaining security of the transaction.
Patent CA-2237922-C (CA)
Inventor: EVANS SAMUEL
IPC: C09K15/00
Filed: 1998-05-15
Granted: 2008-09-23
Abstract: Products are described which can be obtained by reacting components a), b), c) and optionally d), where component a) is a compound of the formula I or a mixture of compounds of the formula I, component b) is a compound of the formula II or a mixture of compounds of the formula II, component c) is a compound of the formula III (IIIa/IIIb) or a mixture of compounds of the formula III  (IIIa/IIIb) and component d) is a compound of the formula IV or a mixture of compounds of the formula IV, (see formula I) (see formula II) (see formula IIIa) (see formula III) (see formula IIIb) (see formula IV) in which the general symbols are as defined in claim 1, the compound of the formula I being, for example, pentaerythritol, thiodiethylene glycol, 1,4-butanediol, 1,2-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, rapeseed oil, coconut fat or castor oil, the compound of the formula IIIa being, for example, 3-tert-butyl-hydroxy-5-methyl-benzylsulfanyl-acetic acid-methylester and the compound of the formula IIIb, for example, 3,5-di-tert-butyl-4-hydroxybenzylsulfanyl-acetic acid-methylester and the compound of the formula IV, being for example, sulfur, diisopropyl dithiophosphate, toluoltriazols or (see formula V) The abovementioned products can be used as liquid antioxidants in fuels, polymers and lubricants and events which lead to friction increase in engines.
Patent CA-2241264-C (CA)
Inventor: AUSTIN I MARK
IPC: G03G21/04
Filed: 1996-12-27
Granted: 2010-03-02
Abstract: La présente invention concerne un procédé de création de modèles et de motifs multicolores, agréables sur le plan esthétique, dans des matières moulées (6), en particulier les matières comportant du ciment, qui peuvent être utilisées pour imiter l'aspect de la pierre naturelle. Le procédé selon l'invention comprend la préparation de teintes multiples de la matière à mouler (6), le chargement géométrique de ces teintes, selon un système à trois dimensions, dans un récipient (2), suivant des formules correspondant à des motifs particuliers à réaliser, la mise en place de ces teintes, chargées géométriquement, dans un moule (16), par versement, extrusion et pulvérisation, la consolidation des mélanges (6) dans le moule, où l'on les laisse faire prise, et l'extraction de l'objet moulé, après quoi il est poli et pourvu d'un revêtement d'étanchéité. Une matrice amovible (1), dans le récipient (2), permet de répéter de manière sûre les motifs conformément aux formules de chargement.
Patent CA-2247178-C (CA)
Title: Mist oil lubricant
Inventor: ZIELINSKI JAMES
IPC: C10N20/02
Filed: 1997-03-14
Granted: 2003-10-14
Abstract: Mist oil lubricants are disclosed based on polycarboxylic acid esters as the base oil which have added 1 to 5 % of polyisobutylene Mn 400-2500 as stray mist suppressants.
Patent CA-2249498-C (CA)
Inventor: STEBNICKI JAMES C
IPC: F16G13/06
Filed: 1998-10-02
Granted: 2005-07-26
Abstract: Disclosed herein is a conveyor having an intended direction of travel and comprising a link module extending transversely of the intended direction of conveyor travel and comprising a plurality of ears including a laterally located outer side ear having a bore extending transversely of the direction of intended conveyor travel, and a pair of gripping surfaces extending in spaced parallel relation to each other to define a gripping portion extending along the direction of intended conveyor travel, and a plug fabricated of resilient material and including a cylindrical barrel portion extending in said bore, and spaced surfaces extending parallel to and inwardly of said outer side surface to define a notch resiliently engaging said gripping portion of said outer side ear.
Patent CA-2257868-C (CA)
Inventor: LAYNE JAMES L
IPC: B65G17/08
Filed: 1997-04-28
Granted: 2005-04-12
Abstract: A modular link conveyor including a plurality of modular link assemblies (10) made up of links (11) of an improved design assembled to create a closely interdigitating conveying surface is disclosed. The improved links (11) eliminate undesirable gaps or openings in the conveying surface. Particularly, the improved links include a forwardly extending tongue (21), projecting from the leading apex (13) of the link, which occupies an open space between the trailing apexes (16) of the legs (15) of the next forward link, thus minimizing the tendency of foreign objects from falling into the open space. The topside (23) of the tongue (21) is tapered downward so as to lift free any objects present in the open spaces primarily while the conveyor is maneuvering through a turn. A forwardly projecting finger (29), positioned between adjoining links (11), is also provided for filling a void between the adjoining links.
Patent CA-2259109-C (CA)
Inventor: PALEOLOGOU MICHAEL
IPC: D21C11/04
Filed: 1999-01-18
Granted: 2009-04-14
Abstract: Sodium chloride is removed from pulping chemicals used in a Kraft pulping process by the use of a snake-cage polyelectrolyte ion exchange resin, coupled with removal of sulfide prior to treatment, or treatment of chemicals which are already low in sulfide. In one aspect of the invention, dust is collected from exhaust gases produced in the black liquor recovery cycle and is dissolved in water to produce a solution containing sodium chloride and sodium sulfate. The solution is filtered to yield a solid product and a filtrate solution. The filtrate solution is fed to an ion exchange unit which removes chloride and produces a purified sodium sulfate product. The sodium chloride is removed from the ion exchange resin by water elution, and useful recovered chemicals are recycled to the recovery cycle of the Kraft process. In one embodiment, only a portion of the dust is dissolved so that the solid product produced by filtering is primarily sodium sulfate, and that sodium sulfate is recycled to the recovery cycle of the Kraft process. In another aspect of the invention, white liquor from the pulping process is treated directly after oxidizing sulfide to sulfate. After removal of sodium chloride in the ion exchange unit, the treated white liquor can be used as a source of sodium hydroxide for oxygen delignification, and the effluent from the oxygen delignification stage can be returned to the process.
Patent CA-2260223-C (CA)
Title: Arme a feu electronique et procede de commande de ladite arme
Inventor: DANNER DALE R
IPC: F41A19/58
Filed: 1997-07-14
Granted: 2002-11-26
Abstract: Arme à feu électronique conçue pour tirer des munitions amorcées électriquement; elle comprend un système de commande (5, 6) servant à commander et à réguler le tir et la consommation d'énergie ainsi qu'à faire le diagnostic; description d'un procédé d'utilisation de ladite arme.
Patent CA-2262531-C (CA)
Inventor: PASCOE EDWARD WILLIAM
IPC: C07K16/28
Filed: 1997-08-05
Granted: 2007-03-13
Abstract: A method of determining abnormality in a tissue sample containing cells of the cervix, the method comprising determining binding of specific binding substances to the sample and comparing the binding with the pattern of binding of said specific binding substances to a normal cervical cell sample. The specific binding substances may be antibodies. Hybridomas which produce suitable antibodies have been deposited at the European Collection of Animal Cell Cultures (ECACC), Centre for Applied Microbiology & Research, Salisbury, Wiltshire SP4 0JG, United Kingdom on 6 February 1995 under the accession numbers ECACC 95020718, 95020716, 95020720, 95020717 and 95020719.
Patent CA-2262690-C (CA)
Title: Vacuum extrusion system and method
Inventor: SADINSKI ROBERT L
IPC: B29C48/92
Filed: 1997-08-11
Granted: 2005-08-09
Abstract: A horizontal vacuum extrusion line includes a fixed bulkhead (23), a die (24) inside the bulkhead, a telescoping vacuum chamber section (27) and a fixed chamber section (28, 29). A dam (33) in the fixed section forms a pond (72) for immersion cooling of the extrudate. A truss (35) extends from the dam to the bulkhead supporting, shaping and calibration equipment and extends through the telescoping section. Fluid pressurizable seals at each end of the telescoping section are operable after the telescoping section is closed against the bulkhead and the telescoping and fixed sections are locked together. The telescoping section provides a more compact line and easier access to the complex equipment downstream of the die. The extrudate from the die passes down into the pond (72) and then through an orifice (74) in a hood (75) projecting from the chamber into a lower level portion of the pond (78) exposed to atmosphere. The hood also includes a tractor drive (88) to push the extrudate through the underwater orifice. The hood and its contents are accessible through the atmospheric pond. A tractor haul-off and the tractor drive in the hood are the only extrudate drives between the calibration equipment and atmosphere. The higher level of the pond (72) within the chamber downstream of the dam is controlled by a valve in turn controlling the output of a pump. The valve control senses the pond level and operates independently of the vacuum controls.
Patent CA-2271353-C (CA)
Inventor: DORN PAUL J
IPC: F16B21/08
Filed: 1999-05-07
Granted: 2003-09-02
Abstract: The retainer pin includes a plurality of longitudinal rows of radially extending wings about a circumference of a shank.      The radially extending wings within any one row are longitudinally offset from longitudinally adjacent wings by a pitch. The wings of circumferentially adjacent rows are offset by a distance equal to one half of the pitch thereby forming a helix. The helix configuration of the radially extending wings creates a screw-like configuration which is used to engage a partially threaded aperture.
Patent CA-2282255-C (CA)
Title: Improved method for producing crystalline carboxylic acids and apparatus therefor
Inventor: DEAN RICHARD PAUL
IPC: C07C51/43
Filed: 1998-04-08
Granted: 2007-12-04
Abstract: Improved process for producing purified aromatic carboxylic acid in the form of dried crystals which comprises cooling the crystals in a fluidized state after the drying step to a temperature at or below 100 ° C prior to packaging and an apparatus therefor.
Patent CA-2286416-C (CA)
Title: Montage de resistance de fermeture pour appareillage electrique a haute tension
Inventor: RAYNAUD BERNARD
IPC: H01R13/15
Filed: 1999-10-08
Granted: 2006-12-12
Abstract: Le montage de résistance de fermeture pour un appareillage électrique à haute tension, comprend un multiplicité de composants résistants électriques (1) alignés en une rangée le long d'un axe (D), et un moyen pour exercer sur les composants électriques une force de compression dirigée selon l'axe pour maintenir le contact électrique entre eux. Le moyen pour exercer ladite force de compression comprend un tube rigide (2) à l'intérieur duquel sont empilés lesdits composants électriques et une structure flottante à accumulation d'énergie disposée dans le tube à une extrémité de la rangée de composants électrique, cette structure flottante étant constituée d'une première pièce (9) disposée entre ladite extrémité de la rangée de composants électriques et une seconde pièce (11) montée fixe dans le tube et d'un ressort maintenu en compression entre la première et la seconde pièce, ladite première pièce étant en outre montée semi-mobile entre deux butées espacées suivant l'axe D.
Patent CA-2288148-C (CA)
Title: A process for the preparation of 1,4,7,10-tetraazacyclododecane
Inventor: RIPA GIORGIO
IPC: C07D257/02
Filed: 1998-04-16
Granted: 2008-12-23
Abstract: A process for the preparation of 1,4,7,10-tetraazacyclododecane of formula (I), starting from decahydro-2a,4a,6a,8a-tetraazacyclopent[fg]acenaphthylene of formula (II), comprising the direct step of hydrolysis in aqueous solution, in conditions of slightly acid, neutral or slightly basic pH, with a primary diamine of formula (V), in which x ranges between 0 and 2, and Q is -CH2CH(OH)CH2-, -(CH2)2NH(CH2)2-, or -[(CH2)2NH]2(CH2)2, whe n x is 1, or Q is -CH2- when x is 2.