baber/WOPTO huggingface dataset:
Patent CA-2044583-C (CA)
Inventor: GREY MICHAEL J
IPC: B65D5/56
Filed: 1990-10-26
Granted: 1998-08-11
Abstract: Système d'emballage d'expédition faisant appel à du carton ondulé et à des éléments en mousse de plastique qui sont retournés au fabricant après usage par l'utilisateur ultime. Dans certaines versions de l'invention proposée, la boîte de carton ondulé est repliable, ce qui réduit l'encombrement. Le fabricant assume la remise en état des composants de l'emballage et le recyclage des éléments usés ou abîmés. De préférence, des mousses polyoléfiniques, des adhésifs et des revêtements à base d'oléfines et des matériaux ondulés à base de fibres ligneuses sont utilisés dans ce système d'emballage dont les divers composants se prêtent à des procédés de recyclage compatibles. Le fabricant peut effectuer lui-même le boulettage des polymères recyclés pour accroître l'efficacité d'un système respectueux de l'environnement.
Patent CA-2046093-C (CA)
Title: Ventilated boot and in-line roller skate with the same
Inventor: OLSON BRENNAN J
IPC: A43B5/16
Filed: 1991-07-02
Granted: 1998-09-01
Abstract: A ventilated in-line roller skate providing improved performance and comfort to a skater skating on a skating surface, said skate comprising a boot including a sole, a tongue and a foot insertion aperture and roller means attached to said sole, said boot being formed from a stiff, resilient material and further including at least two ventilators.
Patent CA-2052073-C (CA)
Title: Sulfonamide fibrinogen receptor antagonists
Inventor: HARTMAN GEORGE D
IPC: C07C311/13
Filed: 1991-09-23
Granted: 1998-04-14
Abstract: A series of non-peptide derivatives that are antagonists of the fibrinogen IIb/IIIa receptor and thus are platelet anti-aggregation compounds useful in the prevention and treatment of diseases caused by thrombus formation, having the following structure:                           (see fig. I) wherein R1 is a piperidinyl moiety R4 is aryl selected from the group consisting of phenyl, pyridyl, thienyl, tetrazole or oxazole, or C1-10 alkyl, or C4-10 aralkyl;          Z is 0, (see fig. II), or (see fig. III), where m is an integer from two to six, and pharmaceutically acceptable salts thereof.
Patent CA-2053935-C (CA)
Title: Device for injecting preheated air into a shaft furnace and process for manufacturing ball-and-socket joints
Inventor: BENCK JEAN
IPC: C21B7/16
Filed: 1991-10-22
Granted: 2002-12-10
Abstract: The device for injecting preheated air into a shaft furnace consists of a plurality of tubular elements provided with a refractory lining, which are connected to each other by a ball-and-socket articulation (94, 96) and an expansion joint. The ball-and-socket articulations comprise a convex ball-part formed in the refractory material of the adjacent segment. They comprise a protective shell made of refractory steel which extends around the convex part up to the base of the ball-part. The radius of curvature of each ball-and-socket articulation is in the range of magnitude of half the diameter of the tubular elements.
Patent CA-2056625-C (CA)
Title: Easily dispersible carbon blacks
Inventor: MEDALIA AVROM I
IPC: C09D11/02
Filed: 1991-04-02
Granted: 1996-12-03
Abstract: Carbon blacks treated with a treating agent comprising at least one compound containing at least one long chain alkenyl or alkyl group and at least one amine group. Optionally, the compound contains at least one chemical group for linking the long chain alkenyl or alkyl group with the amine group. Also disclosed are ink compositions incorporating the treated carbon blacks and processes for preparing the compositions.
Patent CA-2058358-C (CA)
Title: Portable telephone
Inventor: HIRASAWA NAOKI
IPC: H04W52/00
Filed: 1991-12-23
Granted: 1996-02-20
Abstract: A portable telephone including a synthesized local oscillator using a voltage controlled oscillator in the receiver section and receiving its operation power from either built-in battery or an external power source. A first external voltage substantially equal to the output voltage of the built-in batteries and a second external voltage higher than the first voltage are used as the external power source voltage. The output voltage of the built-in battery and the second external voltage are supplied to the voltage controlled oscillator in response to the use of the built-in battery and the external power source, respectively.
Patent CA-2059399-C (CA)
Title: Process for preparing addition polymerization catalysts via metal center oxidation
Inventor: LAPOINTE ROBERT E
IPC: C08F4/6592
Filed: 1992-01-15
Granted: 2002-10-29
Abstract: Addition polymerization catalysts comprising a derivative of a Group 4-8 metal compound prepared by metal center oxidation.
Patent CA-2065584-C (CA)
Title: Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit
Inventor: MITSUTAKE HIDEAKI
IPC: G03B21/00
Filed: 1992-04-08
Granted: 1996-02-13
Abstract: This specification discloses a plate-like polarizing element for converting light into polarized light having a plurality of units arranged along a common plane across the light, each of the units being provided with dividing means for dividing the light into reflected light and transmitted light whose planes of polarization are orthogonal to each other, varying means for varying the polarized state of at least one of the reflected light and the transmitted light to thereby make the planes of polarization of the two lights coincident with each other, and reflecting means for reflecting one of the reflected light and the transmitted light and directing it substantially in the same direction as the direction of travel of the other.  The specification also discloses a polarizing conversion unit provided with such plate-like polarizing element, and a projector provided with such unit.
Patent CA-2067560-C (CA)
Title: Method and apparatus for resolving contention between multiple base units during a call setup in a public cordless telephone system
Inventor: COTSONAS GEORGE P
IPC: H04W72/00
Filed: 1992-04-29
Granted: 1996-11-26
Abstract: A cordless telephone public base unit employed in a public telephone system in close proximity with other public base units effectively avoids contention with these other base units for access to a cordless telephone handset unit generating a service request. Contention between the public base unit and the other public base units is resolved by assigning a specific one of a plurality of times during which the base unit may respond to the service  request from the handset  unit. The time in which  the base unit responds to  the service request  may advantageously be determined by a randomly generated number, the received signal strength of the service request or a combination of these two parameters. Once access to the handset unit is acquired by a base unit and communications  between these two units is established on a communications channel, all other handset units and base units are prevented from interfering with the communications between these two units.
Patent CA-2074107-C (CA)
Title: One-piece reclosable cable and wire duct
Inventor: SANTUCCI DONALD G
IPC: H02G3/04
Filed: 1992-07-17
Granted: 1999-01-26
Abstract: A one-piece reclosable ducting system for electrical wiring or the like. The duct system includes an elongated channel and a mating channel cover. The channel andchannel cover are formed as integral members in a dual-durometer plastics co-extrusion process. More specifically, the channel and channel cover are maintained in operative relationship along respective first edges by a flexible plastic hinge, again, co-extruded with the channel and cover. The flexible plastic hinge permits repeated access and closure of the channel without hinge fatigue. A cantilever tension arm or support beam is integrally formed in the ducting system and extends from the channel to bias and retain the channel cover in proper orientation thereby assuring latching of the cover while simultaneously maintaining overall ducting system structural integrity.
Patent CA-2075125-C (CA)
Title: Security device for securing a spare tire
Inventor: MCCLARY KIRBY L
IPC: B62D43/00
Filed: 1992-07-31
Granted: 2003-10-28
Abstract: A security device is disclosed for securing a spare tire mounted on a hoist having a hoist shaft accessible through, an opening in a bumper. The device has a cup that fits over the end of the hoist shaft to prevent access to the hoist shaft. A locking shaft extends from the cup and through the opening in the bumper. A padlock through an aperture on the locking shaft prevents removal of the device. If the device is moved to the rear, the cup prevents the locking shaft from moving out of the opening in the bumper. If the device is moved to the rear, the padlock prevents the cup from being removed from the end of the hoist shaft.
Patent CA-2083069-C (CA)
Inventor: FINDLAY IAIN S
IPC: A61M60/148
Filed: 1992-11-17
Granted: 2002-10-15
Abstract: A two stage centrifugal and shear pump is characterized by low turbulence for pumping delicate liquids, as blood.      Centrifugal first stage is a hollow shaft on which the shear pump discs are mounted. Offset slots in the shaft and disc hubs direct liquid out of the shaft to the discs.
Patent CA-2087344-C (CA)
Title: Impact resistant container for hazardous materials
Inventor: INSLEY THOMAS I
IPC: B65D81/26
Filed: 1991-08-07
Granted: 2002-01-15
Abstract: A container (10) has a self-sustaining hous-ing (11) filled with a first sorbent body (12) of com-pressed polyolefin microfibers, which body is formed with at least one pocket that snugly receives a vessel holding hazardous materials. The contain-er is closed by a lid (16) which is filled with a sec-ond sorbent body (18) of compressed polyolefin microfibers, and when the lid is in place, the sec-ond body presses against the vessel to hold it snug-ly in place. At least a portion of the first sorbent body has a solidity of less than 20 %, making it highly sorbent of liquids so that it can sorb any li-quid that might leak from the vessel and thus help to prevent the liquid from escaping from the con-tainer.
Patent CA-2089705-C (CA)
Title: Strip-till seed bed preparation apparatus
Inventor: ROGGENBUCK DAVID C
IPC: A01B49/02
Filed: 1993-02-17
Granted: 2002-11-19
Abstract: Seed bed preparation apparatus for the no-till preparation of longitudinal strips of soil for the planting of seeds in longitudinal rows including plurality of laterally spaced apart gang assemblies which are individually mounted on a draft vehicle such as a tractor or the like. Each gang assembly includes a main frame, adapted to the coupled to the draft vehicle, swingably mounting a chassis which follows the contour of the land via rotatable depth wheels which mount a forward, surface soil cutting disk for cutting a slot in the surface soil. A vertical tillage blade is received in the slot cut by the cutting wheel and includes an under surface soil lifting tillage point for lifting and partially breaking up strip of soil as the apparatus forwardly moves. A pair of rotatable soil crumbling disks are mounted on the chassis, parallel to the tillage blade, on opposite side of the blade for containing and further crumbling the portion of the lifted strip of soil between the disks and the blade.
Patent CA-2097358-C (CA)
Title: Process to enhance removal of polymer-containing filter cakes from wellbores and composition therefor
Inventor: MONDSHINE THOMAS C
IPC: C09K8/52
Filed: 1993-05-31
Granted: 1995-11-07
Abstract: The invention provides a process for the removal of filter cakes containing one or more polysaccharide polymers and bridging particles from the sides of a borehole in a hydrocarbon-producing formation which comprises contacting the filter cake with a novel soak solution comprising an aqueous liquid, a peroxide selected from the group consisting of alkaline earth metal peroxides, zinc peroxide, and mixtures thereof, and an acidic substance to provide the soak solution with a pH in the range from about 1 to about 8, and optionally, an activator for the peroxide, for a period of time at least sufficient to decompose the polysaccharide polymers therein to such an extent that the filter cake forms a loosely adherent mass on the sides of the borehole, and thereafter contacting the filter cake with a wash solution in which the bridging particles are soluble to remove the remaining filter cake solids from the sides of the borehole. Preferably the aqueous liquid in the soak solution has no appreciable solubilizing effect on the bridging particles.
Patent CA-2098020-C (CA)
Inventor: SCHIRLIN DANIEL
IPC: C07F7/08
Filed: 1991-12-20
Granted: 2003-10-21
Abstract: This invention relates to novel difluoro statone analogs of Formula 1, to the processes and intermediates useful for their preparation and to their use as anti-viral agents.   (see Formula I)
Patent CA-2099200-C (CA)
Title: Carbonylation of epoxides
Inventor: DRENT EIT
IPC: C07C69/675
Filed: 1993-06-25
Granted: 2003-10-28
Abstract: The invention relates a process for the carbonylation of epoxides by reaction with carbon monoxide at elevated pressure and temperature in the presence of a catalyst system comprising a source o.f cobalt and a hydroxy substituted pyridine compound, whereby .beta.-propiolactones and/or derivatives thereof, such as .beta.-propiolactone polymers, .beta.-hydroxy carboxylic acids and esters, and .beta.-alkoxy carboxylic acids and esters, are produced.
Patent CA-2100673-C (CA)
Title: Method and an apparatus for compacting material
Inventor: BRUKE RICHARD
IPC: B30B9/16
Filed: 1992-11-19
Granted: 2000-02-15
Abstract: The disclosure relates to an apparatus (1) and a method for compacting material, in which the apparatus comprises a path (10), an infeed device (40) which discharges in an opening (11) disposed in the path, and a spiral (30) which is rotary about its longitudinal axis and has no mechanical shaft. In connection with the discharge opening (12) of the apparatus, baffle means (13) are provided which impede displacement of the material. Between the free end (39) of the spiral and the discharge opening (12) of the apparatus, the casing forms a compaction cell (15). The spiral is disposed to at least intermittantly abut against the path, in addition to which the spiral and the path form, in the region of the opening (11), a feed compartment (35) for supplied material. this compartment directly merging into the compaction cell (15).
Patent CA-2105942-C (CA)
Title: Device for sealing the seed meter of a vertically folded planting unit
Inventor: WISOR DONALD RAYMOND
IPC: A01C7/04
Filed: 1993-09-10
Granted: 1996-07-09
Abstract: A device for sealing the seed meter from the seed hopper of the agricultural planting unit when the unit is pivoted from its vertical planting configuration to its horizontal transport configuration.  The device comprises a resilient and elastic sealing diaphragm that is located in the seed meter across from the seed meter disc.  A pivotable frame is located in the other side of the diaphragm away from the seed meter disc and is used to expand the diaphragm so that it contacts the seed meter disc and seals the seed meter form the seed hopper.  A counterweight is mounted to the pivotable frame for automatically pivoting the frame and sealing the seed meter when the planting unit is moved from its vertical planting configuration to its horizontal transport configuration.
Patent CA-2110197-C (CA)
Inventor: KASTENHOFER GERHARD
IPC: A61B50/30
Filed: 1993-11-29
Granted: 1998-06-16
Abstract: A packaging comprises a sealed peel-apart flexible pouch (4) in which the preshaped stem (101) of a medical appliance is maintained by elastic pressure of the walls of a sheath (60) open at its ends formed by a wall (61) having two parallel lateral edges forming slides (8) in which are engaged the lateral edges of two spaced apart portions of a second wall (71-72).  The two walls (61, 71-72) are flat and deformable by their own elasticity.  The spacing between the two portions of the second wall (71-72) constitutes a retaining window (100) for a handling and connecting hub (3) connected to the stem (101).
Patent CA-2111706-C (CA)
Title: Alliage ameliore d'aluminium
Inventor: GUPTA ALOK KUMAR
IPC: C22C21/16
Filed: 1992-07-22
Granted: 1999-12-28
Abstract: L'invention concerne un matériau en alliage d'aluminium se composant essentiellement de 1 % à 1,8 % en poids de Cu, de 0,8 % à 1,9 % en poids de Mg, de 0,2 % à 0,6 % en poids de Si, de 0,5 % à 0,4 % de Fe, de 0,05 % à 0,30 % en poids de Mn, le reste consistant en de l'aluminium avec des impuretés normales. L'alliage forme deux phases de précipitation lors du traitement thermique et du vieillissement : une phase bêta de Mg2Si et une phase S' de Al2CuMg. Cet alliage possède de meilleures caractéristiques de façonnage sans diminuer de façon significative la résistance, et s'applique notamment à la fabrication de pièces en tôle de carrosseries automobiles, telles que les capots, les coffres, et les pare-chocs.
Patent CA-2114697-C (CA)
Inventor: SHIMURA KENICHI
IPC: A61L27/34
Filed: 1994-02-01
Granted: 2006-06-13
Abstract: The invention provides a medical tool which comprises a water-swellable polymer which is a block or graft co-polymer which comprises a moiety which manifests lubricity and another moiety which has a reactive functional group selected from an epoxy group, an acid halide group and an isocyanate group in the molecular unit. A matrix material is chemically bonded to the water-swellable polymer by means of a proton-donating group in the matix material which is capable of reacting with the functional group. In preferred embodiments, the proton donating group is selected from an amino group, an imino group, a hydroxy group, a carboxyl group and a mercapto group. The invention provides a medical tool which exhibits continuous lubricity when in a wetted state.
Patent CA-2117085-C (CA)
Inventor: WILSON DENNIS R
IPC: E21B43/267
Filed: 1992-09-11
Granted: 2004-01-06
Abstract: This invention relates to a method and apparatus for perforating the formation (F) in a wellbore (W) wherein the wellbore is established for the production of hydrocarbons. The formation is perforated by explosive material carried in pistons (50) which are carried within either the pipe casing (60) bathe collars or moth and remain generally within the maximum outward profile of the pipe string so as not to interfere with the movement and placement of the pipe string in the wellbore. The pipe string may be rotated, reciprocated and circulated which enhances the ability of the installer to place the pipe string in a deviated or long reach wellbore: Once the pipe string is in place, the pistons may be deployed by one of several methods such that pistons mounted in openings in the peripheral wall of the pipe string move outwardly with sufficient force to move the pipe string way from the walls of the wellbore sufficient to form a complete annulus for cementing. Once the wellbore is cemented the explosive charges (671) in the pistons may be detonated to perforate the formation adjacent the piston.  The charge may be particularly designed to focus the explosion so that an extensive perforation extends away from the pistons so that the formation is opened up for production of hy-drocarbons.
Patent CA-2117277-C (CA)
Title: In bed infant scale
Inventor: KOCH ROBERT J
IPC: A61G11/00
Filed: 1994-05-19
Granted: 1998-10-27
Abstract: An in bed infant scale for use with an infant care center and which may be slid underneath  the  infant platform of the  infant  care  center while the infant is positioned within the center and which causes little disruption to the infant.  The infant scale is thus movable from infant care center to infant care center conveniently.   The  infant  scale  is easily slid into the infant care center and raises the infant platform on which the infant is positioned such that the infant platform is raised off of its position on its supporting frame and becomes fully supported on the infant scale.  Thus the infant scale can weigh the infant platform and the infant resting on that infant platform.
Patent CA-2123354-C (CA)
Title: Thermostable nucleic acid polymerase
Inventor: GELFAND DAVID H
IPC: C12N15/55
Filed: 1994-05-11
Granted: 2006-11-28
Abstract: The invention relates to purified thermostable DNA polymerases from Pyrodictium species, such as Pyrodictium occultum or Pyrodictium abyssi, which polymerases catalyze the combination of nucleoside triphosphates to form a nucleic acid strand complementary to a nucleic acid template strand. The preferred polymerases are characterized by their ability to function efficiently in a polymerase chain reaction, wherein said reaction includes repeated exposure to a denaturation temperature of about 100'C. Most preferably the polymerases display 5'.fwdarw.3' exonuclease activity, i.e. are proofreading enzymes. The invention also provides DNAs encoding the DNA polymerase activity of the said Pyrodictium species, which DNAs can be used to construct recombinant vectors and transformed host cells for production of polypeptides having said activity. The invention also relates to the preparation of said thermostable DNA polymerases, to the use of said polymerases to amplify nucleic acids as well as to kits comprising a polymerase of the present invention.
Patent CA-2129420-C (CA)
Inventor: DEMPSEY MICHAEL P
IPC: C08G18/32
Filed: 1994-08-03
Granted: 2004-06-22
Abstract: The present invention is directed to an improved internal mold release system for the production of low density molded foam parts.      The process comprises reacting a reaction mixture of an isocyanate and at least one organic compound containing isocyanate-reactive hydrogens in the presence of a blowing agent, a catalyst, a surfactant, an IMR, and, optionally, a reinforcing agent, in a closed mold. The IMR comprises: a) mixed esters comprising the reaction product of i) aliphatic dicarboxylic acids, ii) aliphatic polyols, and iii) monocarboxylic acids with 12 to 30 carbon atoms in the molecule.      The IMR may additionally comprise b) and/or c) wherein: b) represents a compound comprising the reaction product of i) N,N-dimethylpropylene diamine with ii) a compound selected from the group consisting of tall oil, C8-20 monofunctional carboxylic acids, and mixtures of C8-20 monofunctional carboxylic acids; and c) represents a compound comprising the reaction product of oleic acid, adipic acid, and pentaerythritol; with the proviso that the reaction product of a) is different than the reaction product of c).
Patent CA-2131152-C (CA)
Inventor: BURTON JOHN EDWARDS
IPC: B60Q1/068
Filed: 1993-03-19
Granted: 2001-05-22
Abstract: An angular adjusting mechanism for a headlamp assembly having a rigid two piece (30, 32) press fit molder gear housing assembly. The housing accepts a pair of angularly disposed bevel gears (116, 142) including a drive shaft (118) and drive gear (116) with the drive shaft (118) journaled in a bore (44) in one of the housing sidewalls (34) and the drive gear (116) positioned within the housing and bearing on the interior of the housing sidewall (34). A  tubular nut (134) and an adjusting gear (130) engaging said drive gear (116) with the tubular nut (134) journaled in a second sidewall bore (54) and said nut (134) telescopically accepting an elongated adjusting screw (16) which is axially adjusted when the tubular nut (134) is rotated by the adjusting gear (130).
Patent CA-2142428-C (CA)
Title: Titanium tube seal welding head enclosure
Inventor: MUTH DOREL
IPC: F28F9/18
Filed: 1995-02-13
Granted: 1998-06-09
Abstract: An arrangement for providing a seal fillet weld on a titanium tube sheet and tube includes an enclosure having a closed top and an open bottom opposite the top. The enclosure is positioned over the tubes to be welded on the tube sheet. A rotating seal welding head is contained within the enclosure for performing the welding operation on the tube and tube sheet. Trapped air is purged from the enclosure and inert gas is provided to the enclosure for creating an inert gas atmosphere for facilitating the welding operation. A rubber gasket is used to seal the enclosure to the tube sheet for ensuring a sealed inert atmosphere.