baber/WOPTO huggingface dataset:
Patent CA-2134082-C (CA)
Inventor: MATHIOWITZ EDITH
IPC: A61K47/48
Filed: 1993-04-23
Granted: 2007-04-03
Abstract: Bioadhesive polymers in the form of, or as a coating on, microcapsules containing drugs or bioactive substances which may serve for therapeutic, or diagnostic purposes in diseases of the gastrointestinal tract, are described. The polymeric microspheres all have a bioadhesive force of at least 11 mN/cm2 (110 N/m2).  Techniques for the fabrication of bioadhesive microspheres, as well as a method for measuring bioadhesive forces between microspheres and selected segments of the gastrointestinal tract in vitro are also described. This quantitative method provides a means to establish a correlation between the chemical nature, the surface morphology and the dimensions of drug-loaded microspheres on one hand and bioadhesive forces on the other, allowing the screening of the most promising materials from a relatively large group of natural and synthetic polymers which, from theoretical consideration, should be used for making bioadhesive microspheres.
Patent CA-2142550-C (CA)
Title: Machine for finishing printed sheets
Inventor: COYETTE LUC
IPC: B65H29/68
Filed: 1995-02-15
Granted: 1998-10-20
Abstract: A finishing machine is proposed for printed sheets delivered individually in rapid succession by a reproduction machine such as a printing press or a copier. The machine renders possible the manufacture in a production line in a complete-ly automatic manner of brochures, leaflets or booklets with-out trimming edges. The machine comprises as its main part a station for takeover of the delivered sheets; a device for controlled retardation of the sheets received from the take-over station; a station for horizontal stacking of the retarded stacks; means for the alignment of the stacked sheets; a device for gripping the stack of aligned sheets a device for pivoting of the gripped stack from a horizontal position to an on-edge position; and a device for encasing the stack in a cover.
Patent CA-2148342-C (CA)
Title: Encapsulation with water soluble polymer
Inventor: LEW CHEL W
IPC: A01N25/26
Filed: 1995-05-01
Granted: 2003-02-25
Abstract: Molten, water soluble polymer is used as a binder for agriculturally effective active ingredients in a water free encapsulation process. For finely divided solid active ingredients, a solvent for the binder can be used to increase the amount of bound active ingredient. For water insoluble active ingredients, the binder provides a method for rendering the active ingredient dispersable in water.
Patent CA-2149539-C (CA)
Title: Improved material for the fabrication of sails and method of manufacture therefor
Inventor: DOWNS ROLAND J
IPC: B63H9/06
Filed: 1993-11-17
Granted: 2002-02-12
Abstract: An improved reinforced laminate for use in sails or other flexible sheet or membrane applications utilizes a pull-truded thin lightweight reinforcing sheet of unidirectional extruded monofilaments in which the reinforcing sheet or sheets (32, 34, 36) form one or more uni-tapes laminated to a polymer film (40) such as Mylar®, or other extended sheet of material. The monofil-aments (38) are uniformly embedded in the uni-tape via an elastomeric polymer matrix, with the reinforcing sheet, when in-corporated into sails via lamination resulting in sails with reinforcing monofilaments having diameters 5 times less than conventional strands or threads. The use of small diameter monofilaments greatly increases the monofilament-over-mono-filament crossover density, resulting in a dramatic increase in shear strength, and Young's Modulus, with an accompanying dramatic decrease in weight. In one embodiment the improvement in specific modulus over conventional sail laminates is about six-fold. For example, at only one-third the weight, stretch resistance is two times better. In a preferred embodiment, autoclaving is used in the lamination process to rid the laminate of voids which dramatically reduce shear strength by as much as 30 percent. Alternative void-free laminating processes include a silicone interliner/heated platen technique.
Patent CA-2149978-C (CA)
Inventor: MCALISTER STEVEN A
IPC: B04B15/12
Filed: 1995-05-23
Granted: 1999-12-07
Abstract: A centrifugal concentrator for separating higher density particles from a slurry provides reduced water consumption by providing a fluidized capture zone in the upper section of the bowl only,  and provides an unob-structed interior migration surface in the lower part of the bowl to provide a preliminary separation of heavier particles.
Patent CA-2151332-C (CA)
Title: Automated method and apparatus for hydrating soft contact lenses
Inventor: ANDERSEN FINN THRIGE
IPC: B65B25/00
Filed: 1995-06-08
Granted: 2007-01-09
Abstract: An automated apparatus for hydrating a molded hydrophilic contact lens. The apparatus comprises a first robotic assembly for removing a plurality of contact lens molds from a carrier. Each mold has a contact lens therein. The molds are assembled with a lens transfer plate to form a first hydration carrier. A second robotic assembly is provided for immersing the first hydration carriers in a hydration bath to hydrate the lens and release the lens from the mold and allow the lens to transfer from the mold to the lens transfer device. A pick unit is provided for removing the first hydration carriers from the bath after a predetermined time. A third robotic assembly is provided for removing the molds from the lens transfer plate and transporting the lens transfer plate and the lenses to a subsequent processing station.
Patent CA-2152048-C (CA)
Inventor: WATSON KEVIN DREW
IPC: C25C3/06
Filed: 1993-12-17
Granted: 2004-06-29
Abstract: An electrolytic reduction cell for metal production includes an anode structure (6) and a cathode (2) located beneath the anode. The upper surface of the cathode includes an aggregate of particles having a particle size distribution and particle shapes such that, in use of the cell, liquid metal penetrates at least part way into the aggregate to form a slurry (3) of liquid metal and particles. The slurry has a high viscosity and remains relatively immobile during operation of the cell.  Preferably, the slurry is a plastic fluid that has a yield stress higher than the shear stresses to which it is exposed in the cell.
Patent CA-2153469-C (CA)
Inventor: TEICH DANIEL E
IPC: E05D1/02
Filed: 1995-07-07
Granted: 1999-12-14
Abstract: An appliance hinge connects a cabinet top to a cabinet base for pivotal movement therebetween.  The hinge includes a first hinge member attached to the cabinet top and a second hinge member attached to the cabinet base.  The first and second hinge members are pivotally connected to one another.  One of the first and second hinge members includes a leg extending between the cabinet top and the cabinet base to prevent contact therebetween.
Patent CA-2156341-C (CA)
Inventor: TANIKAWA TSUYOSHI
IPC: F16K11/048
Filed: 1995-08-17
Granted: 1999-02-16
Abstract: A three way switching controller (1) for handling high purity gas, and the like, used for a semiconductor manufacturing plant, and the like, prevents lines on switching sides thereof from communicating with each other at time of switching. The three way switching controller includes a body (2), first and second valves (3 and 4), a cylinder (5), and a linking mechanism (6), with the linking mechanism including a disengagement device (7). The cylinder, operating through the linking mechanism, alternately opens and closes normally-closed valves. The disengagement means prevents a driving force of the cylinder from being applied at once to the valves upon initiation of operation of the cylinder, thereby allowing both of the valves to be in a free state (closed state).
Patent CA-2156558-C (CA)
Title: Speech-coding parameter sequence reconstruction by classification and contour inventory
Inventor: HAAGEN JESPER
IPC: G10L19/00
Filed: 1995-08-21
Granted: 2001-01-16
Abstract: A method and apparatus which allows the transmission of the perceptually important features of a speech-coding parameter at a low bit rate. The speech coding parameter may, for example, comprise the signal power of the speech. The parameter is processed on a block by block basis. The parameter value at the block boundaries is transmitted by conventional methods such as, for example, by means of differential quantization. The shape of the reconstructed parameter contour within block boundaries is based on a classification. The classification determines perceptually important features of the parameter contour within a block. Based on the result of the classification as well as the parameter values at the block boundaries, a parameter contour (within the block) is selected from an inventory of possible parameter contours.
Patent CA-2160182-C (CA)
Inventor: IMAZATO SATOSHI
IPC: A61K6/884
Filed: 1995-10-10
Granted: 2007-01-16
Abstract: The present invention is directed to an antimicrobial adhesive composition for dental use comprising (A) 0.01 to 25% by weight (wt%) of an antimicrobial polymerizable monomer (B) to 40 wt% of a polymerizable monomer having at least one acidic group, (C) 10 to 50 wt% of a polymerizable monomer having at least one alcoholic hydroxy group, (D) 20 to 75 wt% of water, and a polymerization catalyst. The composition of the present invention prevents microbial invasion while improving adhesion between a tooth and restorative material used to treat the tooth.
Patent CA-2160308-C (CA)
Title: Shopping cart having clips fastening plastic basket to wheeled chassis
Inventor: MAINARD TOMMY DOYLE
IPC: B62B3/14
Filed: 1995-10-11
Granted: 2001-09-11
Abstract: In a shopping cart comprising a wheeled chassis, a handle structure including two handle uprights extending upwardly from the wheeled chassis, and a basket supported on the wheeled chassis and fastened to the handle uprights, two clips are employed for fastening the basket to the wheeled chassis.  Each clip is fastened to an associated, generally horizontally extending portion of a frame of the wheeled chassis, beneath one of the side walls of the basket. Each clip has an upper, flanged end, which extends at least partly into an associated recess provided in one of the side walls of the basket and a lower, curved end, which conforms generally to and extends at least partly beneath the associated, generally horizontally extending portion of the frame. The frame of the wheeled chassis includes a tubular member defining the generally horizontally extending portions, to which the clips are riveted.
Patent CA-2163473-C (CA)
Inventor: AGAZZI OSCAR ERNESTO
IPC: G11B5/09
Filed: 1995-11-22
Granted: 1999-06-15
Abstract: A method and apparatus for the processing of magnetic recording data signals which provides for the cancellation of the effects of precursor intersymbol interference (ISI) in the data signals. According to one illustrative embodiment, an adaptive filter is used to produce a replica of the precursor ISI, which is then subtracted from a delayed version of the data signal. The amount of the delay is advantageously equal to the delay between the main peak of the channel impulse response and the leading undershoot (i.e., the precursor ISI effect) which is to be canceled. The signal which is provided to the adaptive filter (to produce the precursor ISI replica) may be based on tentative decisions generated by a symbol-by-symbol detector, and may first be converted from three levels to two levels by a three-to-two level converter. Theresultant signal (after the aforementioned subtraction), which is essentially precursor ISI-free, may then be processed by a conventional Viterbi decoder to produce the decoded symbol data.
Patent CA-2165205-C (CA)
Title: Low pressure process for the manufacture of cyclohexanedicarboxylate esters
Inventor: TENNANT BRENT ALAN
IPC: B01J35/02
Filed: 1994-06-03
Granted: 1999-05-11
Abstract: Disclosed is a process for the manufacture of dialkyl cyclohexanedicarboxylates by the low pressure, catalytic hydrogenation of the corresponding dialkyl benzendicarboxylate wherein the formation/accumulation of carbon monoxide is suppressed to maintain the activity of the precious metal catalyst.
Patent CA-2167800-C (CA)
Title: Filter backflushing system
Inventor: BOLTON JOSEPH A
IPC: B01D17/022
Filed: 1994-07-18
Granted: 2001-04-24
Abstract: A filter backflushing system (10) including either a pneumatically-driven piston (16) or pneumatic accumulator for propelling a supply of a filtered backflushing fluid, con-tained in a backflushing fluid chamber (34), in a reverse di-rection through a filter element (14). The filter backflushing system (10) provides a high intensity, substantially instanta-neous, constant pressure backflushing flow which effectively removes clogging contaminants from the filter element (14).
Patent CA-2170628-C (CA)
Title: Computer system for use with a wireless data communication network
Inventor: LAZARIDIS MIHAL
IPC: H04M11/06
Filed: 1994-08-29
Granted: 1999-08-17
Abstract: The present invention provides a method for enhancing service signals transmitted by a DCE, such as a Modem, to a DTE user.  Since any transmission from a remote computer to a DTE user through a wireless communication network can be encoded   with additional  information,    use of an AT compatible   modem in conjunction  with a  wireless communication  network  adds a new   dimension  of  information that can be displayed to the DTE user. The present invention also includes a method for ensuring effective data transfer from a DCE to a DTE user.   When  a DTE receives a connection  service signal it will often require several internal adjustments before it can accept data. Because data received by a radio-based modem is received in packets, under certain conditions data will be waiting to be transmitted to the user immediately after the modem enters a data transfer state. The method of this invention includes the steps of transmitting a service signal to the DTE indicating that the modem has entered a data transfer state and delaying for a predetermined time after transmitting the data-transfer-state signal before transmitting data from the modem to the DTE.
Patent CA-2175084-C (CA)
Inventor: BUONGIORNO LIVIO
IPC: C08L23/02
Filed: 1994-10-28
Granted: 2003-07-08
Abstract: Multilayers, bioriented and heat shrinkable films, method for manufacturing them and their use for packaging food products and consumer goods. Said films are extruded from a flat die, comprise at least one layer comprising at least one ethylene/alpha olefin C4-C12 copolymer having more than one melting point and are stretched both in machine direction and cross-direction.
Patent CA-2175575-C (CA)
Title: Actuators for electrostatically charged aerosol spray systems
Inventor: INCULET ION I
IPC: B05B5/16
Filed: 1994-11-04
Granted: 1999-06-15
Abstract: An actuator (20) for electrically charging an aerosol spray has an inductor (34) located adjacent to the spray nozzle (18) to induce a charge on the atomized fluid. Charge to the inductor (34) is provided by a piezoelectric crystal (46) which is stressed by movement of an operating member (26) to open the spray valve (16). Inductor charging utilizes negligible electrical power so that additional power sources are not required. The crystal may be stressed continuously such as by squeezing, or intermittently, such as by striking. When an intermittent stressing is utilized, the electrical circuit includes a switch between the crystal and inductor which is opened as the valve is opened to isolate electrically the inductor during spraying.
Patent CA-2176565-C (CA)
Inventor: KAALI STEVEN G
IPC: A61B19/00
Filed: 1994-07-29
Granted: 1997-03-18
Abstract: Nouvel ensemble perfectionné comportant un trocart laparoscopique (21) et une gaine (11). Le trocart (21) est pourvu d'une extrémité transparente (22) éventuellement dotée d'une arête coupante (78), et accueille un télescope éclairant (24) relié à une console vidéo, de sorte que lorsqu'on introduit ce trocart (21) par voie chirurgicale dans la cavité abdominale au travers de la paroi abdominale, on peut visualiser l'intervention sur la console vidéo et éviter toute lésion des vaisseaux sanguins de la paroi abdominale ou de tout organe interne situé dans la cavité abdominale. Un manche (32, 33) prévu sur le trocart (21) facilite la manipulation et la régulation de la pénétration de l'extrémité (22) du trocart. Dès que l'on a obtenu une visualisation nette, on peut pratiquer en toute sécurité des interventions laparoscopiques traditionnelles.
Patent CA-2185837-C (CA)
Title: Solvent-assisted method for mobilizing viscous heavy oil
Inventor: FRAUENFELD THEODORE J W
IPC: E21B43/16
Filed: 1996-09-18
Granted: 2001-08-07
Abstract: The invention provides a solvent-assisted method for mobilizing viscous heavy oil or bitumen in a reservoir under reservoir conditions without the need to adjust the temperature or pressure. The invention utilizes mixtures of hydrocarbon solvents such as ethane, propane and butane, which dissolve in oil and reduce its viscosity. Two or more solvents are mixed in such proportions that the dew point of the solvent mixture corresponds with reservoir temperature and pressure conditions. The solvent mixture, when injected into a reservoir, exists predominantly in the vapor phase, minimizing the solvent requirement. The invention can be practised in the context of paired injector and producer wells, or a single well cyclic system.
Patent CA-2193044-C (CA)
Inventor: MURAKAMI MASAKI
IPC: A47L13/24
Filed: 1996-12-16
Granted: 2001-12-04
Abstract: A sweeper device including a head, a stick mounted on an upper surface of the head and a sweeping sheet detachably attached to the head, a pair of clamping members being provided in a transversely symmetric relationship with respective inner ends thereof being opposed to each other, each of the clamping members being pivotally mounted at an inner end thereof on the upper surface of the head so that the clamping member can be pivotally opened upward from the upper surface of the head.
Patent CA-2193543-C (CA)
Title: Sodium hyaluronate based ophthalmic formulation for use in eye surgery
Inventor: BUNTER RENE-PIERRE
IPC: A61K9/08
Filed: 1996-12-20
Granted: 2006-02-21
Abstract: The present invention relates to an ophthalmic formulation, for use in eye surgery, comprising sodium hyaluronate, citrate, at least one antioxidant tolerated by the intraocular tissues and a phosphate buffer.
Patent CA-2203741-C (CA)
Title: Injection molding apparatus with a one-piece gate insert locating a cylindrical valve member
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/26
Filed: 1997-04-25
Granted: 2007-02-20
Abstract: Valve gated injection molding apparatus having a valve member with a cylindrical front end portion. A one-piece insert mounted at the front end of a nozzle has both a gate and locating blades extending inwardly from an outer body into a central opening leading to the gate. The inner surfaces of the blades fit around the front end portion of the reciprocating valve pin to guide and very accurately locate it in alignment with the gate. Very accurately maintaining the front end portion of the reciprocating valve pin in alignment with the gate allows it to be cylindrical rather than tapered which produces a much cleaner gate mark.
Patent CA-2208930-C (CA)
Inventor: DAY R NOLAN
IPC: F42B39/08
Filed: 1997-06-27
Granted: 2000-10-17
Abstract: A powder-actuated tool cartridge clip comprising generally an elongate body member having a major and minor dimensions, a plurality of explosive chargeretaining receptacles arranged in series and an indexing member both disposed along the major dimension of the elongate body member. The cartridge clip is disposable generally in a feed channel of a powder-actuated tool of the typed having an indexing mechanism for engaging and advancing the cartridge clip through the feed channel to sequentially position explosive charges retained in the cartridge clip in a discharge position. The cartridge clip also includes an indicator mark disposed along the elongate body member for indicating that a last remaining explosive charge retained in the cartridge clip is positioned in the discharge position or has been discharged when the portion of the cartridge clip having discharged explosive charges protrudes from the powder-actuated.
Patent CA-2213107-C (CA)
Title: Container having an adjustable inner base wall
Inventor: NOBAKHT JAMSHID
IPC: B65D81/22
Filed: 1997-08-14
Granted: 2006-04-18
Abstract: A container 10 comprising a circumferential sidewall 12 having an integral base wall 14 for support of the container. The container 10 has an open top end 7 closeable by a lid 34. An article support base 24 is displaceable in the container in a guided manner and is provided with a biasing structure 38, 40 which urges it in an upward direction towards the open top end 7 to expose one or more objects 8 placed on the support base 24 and immersed in a liquid 9 which is placed within the container. The support base 24 has a projection 32 which is engageable by the lid 34 to maintain the support base 27 into the liquid 9. Passages 6 permit liquid to be displaced from opposed top and bottom ends of the support base 24. The biasing structure 38, 40 in one embodiment is constituted by a floatation casing 38 and in a further embodiment is constituted by a spring member 40.
Patent CA-2213957-C (CA)
Inventor: UTO YOSHIHIRO
IPC: H05K3/36
Filed: 1997-08-21
Granted: 2000-07-18
Abstract: A tape carrier package is used as a controller for controlling a liquid crystal display panel, and the liquid crystal display panel and the tape carrier package are connected to each other with use of a heat seal. The liquid crystal display panel is stack to one face of a liquid crystal display panel substrate via spacer, on the other hand, the tape carrier package is stack to the other face thereof, and then, the liquid crystal display panel substrate is attached to a main circuit board by means of a retaining member, thereby the liquid crystal display panel being attached to a display window of a telephone housing. Therefore, a structure around the liquid crystal display panel is simplified, so that the number of components can be reduced, and also an assembling work can be readily performed.
Patent CA-2224380-C (CA)
Inventor: WARNER MARK D
IPC: F16D1/112
Filed: 1997-12-08
Granted: 2008-04-01
Abstract: A coupling for transferring power from a drive shaft to a driven shaft includes a first coupling member, having a substantially cylindrical body, with a cylindrical bore at a first end, longitudinal key arrangement within the bore for being rotatably driven by a keyed motor drive shaft, and a solid cylindrical portion at a second end having a distal face with an alternating plurality of longitudinally projecting drive lugs and longitudinally recessed pockets; and a second coupling member for installation on a driven shaft having a substantially cylindrical body with a first proximal face, providing a non-cylindrical socket means for receiving and for drivably engaging the driven shaft, and a second distal face with an alternating plurality of longitudinally recessed pockets and longitudinally projecting drive lugs, the longitudinally projecting drive lugs of the first coupling member fitting into the longitudinally recessed pockets of the second coupling member, and vice versa, to complete the coupling. Preferably both coupling members are molded from a 30% glass filled long fiber polyphenylene sulfide resin.