baber/WOPTO huggingface dataset:
Patent CA-2166161-A1 (CA)
Inventor: HOLMAN JAMES LYNN
IPC: F04C15/00
Filed: 1995-12-27
Abstract: An improved system for lubricating the gears and bearings in a vehicle transmission is provided including an improved gerotor pump mounted on the interior of the transmission housing. The gerotor pump includes an inner pump element and an outer pump element. One end of the outer element is provided with a radially inwardly extending portion which extends over the end of the inner element. This end of the outer element also includes a radially outwardly extending toothed portion which meshes with and is driven by one of the countershaft gears of the transmission. The inner and outer elements are both piloted on a flanged nut and pilot pin assembly which is secured to an interior wall of the transmission housing by a threaded stud. The gerotor pump of the invention thus eliminates the need for a pump housing and permits the use of a higher displacement set of gerotor elements in a given amount of space. In addition, by driving the outer element rather than the inner element, a higher pump speed and increased pump flow are achieved.
Patent CA-2168367-A1 (CA)
Title: Treatment to improve corrosion resistance of autodeposited coatings on metallic surfaces
Inventor: ROBERTO OSCAR E
IPC: C09D5/08
Filed: 1994-07-27
Abstract: A process of retaining or enhancing corrosion resistance of autodeposited coatings on metallic surfaces by contacting the uncured coating on the metallic surface with a reaction rinse solution containing hydrofluorozirconic acid or a salt thereof, such as a nickel or cobalt salt. The metallic surface may be cold rolled steel or galvanized steel. The resinous autodeposited coatings are poly{vinylidene chloride} polymers. Copolymers containing at least 50 % by weight poly{vinylidene chloride} are suitable. Because the protective properties of the autodeposited coatings are improved on both types of steel, both may be processed simultaneously, providing practical and economic advantages.
Patent CA-2170604-A1 (CA)
Title: Nucleic acid purification compositions and methods
Inventor: PADHYE VIKAS V
IPC: C12Q1/6806
Filed: 1994-08-30
Abstract: The present invention provides compositions and methods for isolating nucleic acids with lengths greater than about 50 bases, from cells, gels, solutions and other media, in which nucleic acids occur in vivo or in vitro. The compositions of the invention are mixtures of the silica materials silica gel and glass particles, particularly glass microfibers; such mixtures combined with chaotropic salts, such as guanidinium chloride or guanidinium thiocyanate; and suspensions of such mixtures in aqueous solutions of chaotropic salts. In the methods of the invention, an aqueous solution comprising nucleic acid is mixed with an aqueous solution of chaotropic salts and the resulting solution is contacted with a mixture of the silica materials, whereupon the nucleic acid in the solution binds to the silica materials. The chaotropic salts and components, other than the nucleic acid adsorbed to the silica materials, from the aqueous solution treated by the method of the invention are washed from the silica materials. Finally, the nucleic acid can be obtained by elution from the silica materials. The methods provide nucleic acid in water or buffer, such as TE buffer, free of contamination by any salt or macromolecule that would interfere with further processing or analysis.
Patent CA-2172957-A1 (CA)
Title: Method for Molding Contact Lenses
Inventor: APOLLONIO ATTILIO
IPC: B29D11/00
Filed: 1994-09-15
Abstract: A method of molding a series of contact lenses having a range of optical powers using a matrix of posterior and anterior molds having varying surface characteristics such that the optical powers vary while maintaining constant fitting characteristics, and using a number of mold types which is less than the total number of contact lenses produced in the series.
Patent CA-2175241-A1 (CA)
Title: Apparatus and Method for Manufacturing a Double-Sided Embossing Fibrous Web and Such Double-Sided Web
Inventor: KROYER KARL KRISTIAN KOBS
IPC: D04H1/54
Filed: 1994-10-28
Abstract: A double-sided three dimensional embosssed web is provided by passing an uncured paper or plastic web (15), through a nip between an embossing roller (18) and a pressure roller (19), the pressure roller having a smooth and hard surface to create the effect of a double-sided three dimensional embossing on the web. Such double-sided embossing gives the web a good hand and feel and a good drapability, thereby making the method suitable for manufacturing cloth, curtains, diapers and other products which should feel soft and pleasant and which should have a good drapability comparable with that of knitwear and textiles. The embossed web has embossing or impressions (24) provided on two surfaces as a mirror image around a plane of symmetry (23) passing through the middle of the web (15). In the same way raised areas (26) are opposed by raised areas (26).
Patent CA-2176857-A1 (CA)
Title: Waterfast primary color dyes for ink jet recording fluids
Inventor: BOTROS RAOUF
IPC: C09D11/00
Filed: 1996-05-17
Abstract: An ink jet ink composition comprises a liquid vehicle, a dye, a  co-solvent for  improved waterfastness, and  a  branched  N-hydroxyalkyl polyethyleneimine  polymer  substituted at about 80% of  the available nitrogens.  Alternatively, the  N-hydroxyalkyl  polyethyleneimine  polymer  could  be replaced with  an  N-hydroxyalkyl  diphenylguanidine substituted at about 80% of the available nitrogens. Additionally,  the polyethyleneimine  polymer or diphenylguanidine could be epicholorohydrin modified (1-chloro 2,3 epoxypropane) to  form the corresponding  N-hydroxypropyl  derivative.   The co-solvent preferably comprises N-methyl-pyrrolidone or N,N-dimethylformamide.
Patent CA-2178387-A1 (CA)
Title: Speed control system for an ac locomotive
Inventor: KUMAR AJITH KUTTANNAIR
IPC: B60L3/00
Filed: 1996-06-06
Abstract: A speed control system for an AC electric locomotive of the type having a plurality of wheel-axle sets with each wheel-axle set being coupled to an independently controllable AC electric traction motor and each motor having a corresponding speed sensor, each speed sensor providing a pair of signals which are resolvable to determine the speed and direction of rotationof the associated motor rotor, wherein the control system is arranged for maintaining torque control during failure of one of the signals from an associated speed sensor. The system detects the presence of each of the pair of signals from each speed sensor and responds to detection of only one of the pair of signals from one of the speed sensors for setting motor speed in response to the detected one of the signals. Direction is then determined by using signals from another of the speed sensors.
Patent CA-2179413-A1 (CA)
Title: Automatic teller machine having half width trays
Inventor: RAMACHANDRAN NATARAJAN
IPC: G07F19/00
Filed: 1995-03-07
Abstract: An automated teller machine (10) in-cludes a housing (12) with a top assem-bly (40). Rollout trays (46) are mounted in the top assembly and have components that require periodic servicing mounted thereon. An ATM fascia (18) is pivotally mounted to enable servicing of the components on the trays during servicing. The fascia is tilted upward and a technician is enabled to stand under the fascia and to selectively extend the trays to service the components thereon. As a result, the amount of clearance space that must be provided around the ATM for ser-vicing is minimized.
Patent CA-2180678-A1 (CA)
Inventor: SID-AHMED MAHER AHMED
IPC: H04N7/01
Filed: 1996-07-08
Abstract: Methods and apparatus for enhancing the definition of television images in real-time is presented. Television video signals are digitized and processed, preferably through 3-D filtering, to increase the number of pixels per line, horizontal lines per frame and frames per second and provide an output in progressive-scan format. The system accepts an interlaced scanned image of any transmission standard (NTSC, PAL, etc.), and can be adapted to work on progressively scanned images or digitally stored or digitally stored/transmitted images in real-time or off-line.
Patent CA-2184627-A1 (CA)
Inventor: CHAKRABARTI SARBANANDA
IPC: C08K5/3492
Filed: 1996-08-30
Abstract: Flame-resistant flexible polyurethane foams are produced by reacting a)  organic and/or modified organic polyisocyanates, b)  relatively high molecular weight compounds containing at least twa reactive hydrogen atoms and c)   if desired, low molecular weight chain exteders in the presence of catalysts, e)  blowing agents f)   flame retardants, and, if desired g)   auxiliaries and/or additives, where the flame retardants f) used are melamine in combination with at least one anionic dispersant.             Isocyanate:  MDI prepolymer NCO cvrltent 24 - 28% based on MDI
Patent CA-2185076-A1 (CA)
Title: Heat exchanger for a hydrocarbon fuelled motor vehicle
Inventor: BENNETT EASTON
IPC: F02N19/10
Filed: 1996-09-09
Abstract: A heat exchanger of a hydrocarbon fuelled motor vehicle includes an exhaust pipe and a length of conduit formed into a heat exchange coil by wrapping several times around the exhaust pipe.  The conduit has a first end and a second end, whereby the conduit is connected to a fluid circulation conduit.
Patent CA-2186268-A1 (CA)
Title: Computer physical security device
Inventor: CARL STEWART R
IPC: F16M13/00
Filed: 1996-02-07
Abstract: Several apparatus embodiments (Figs 1-24) which inhibit the theft of equipment (5) such as personal computers is disclosed. The equipment typically includes an external wall (10) provided with a specially designed, approximately rectan-gular slot (15) having preselected dimensions. An attachment mechanism (particularly Figure 17) in-cludes a housing (800) for a spindle (840) having a first portion (350) rotatable within the housing, a shaft (840) extending outwardly from the hous-ing (800), and a crossmember (845) at the end of the shaft having peripheral dimensions closely conforming to the internal dimensions of the slot. The spindle (840) is rotated 90 degrees to mis-align the crossmember (845) with the slot or slid to attach the attachment mechanism (800) rigidly to thexternal wall (10). A cable (30) is secured to the housing (800) and to an immovable object so that the equipment (5) can not be stolen.
Patent CA-2188249-A1 (CA)
Title: Variable cross section extruding die and variable cross section extrusion molding method
Inventor: KATO MASATSUGU
IPC: B29C48/13
Filed: 1996-03-14
Abstract: A variable cross section extruding die comprises a die for varying an area of an extrusion molding hole provided movably in a direction perpendicular to a direction in which a molding material is extruded for extrusion of the molding material and a mandrel provided in the extrusion molding hole in such a manner as to freely move back and forth in the above extruding direction and having a tapered portion on its outer circumferential portion tapered such that the outer diameter thereof gets gradually smaller from one of the back and forth directions to the other. With this variable cross section extruding die, while a molding material is being pressed against the die, the die is moved such that the configuration of the extrusion molding hole is deformed, and the tapered portion of the mandrel is moved in and out of the extrusion molding hole, whereby a tubular molded article is extruded whose outside and inside diameters vary along its longitudinal direction.
Patent CA-2189461-A1 (CA)
Title: System monitoring programmable implantable transponder
Inventor: URBAS DONALD J
IPC: H04B1/59
Filed: 1991-08-02
Abstract: A passive transponder includes a receive antenna for receiving an input signal. A frequency generator and modulator receives the input signal and outputs a data carrier signal having a frequency independent of the input signal frequency. A programmable memory and thermistor are provided to produce user ID data and temperature data which is combined with the output signal.
Patent CA-2189977-A1 (CA)
Title: Anti counterfeit apparatus
Inventor: LEWIS KEITH LODER
IPC: G01V8/10
Filed: 1995-05-09
Abstract: Apparatus for distinguishing between genuine and counterfeit articles whereby a first optical filter is applied to genuine articles and suspect articles are scanned with the aid of a suitable second optical filter. Scanning of genuine articles incorporating first optical filter with the aid of suitable second optical filter gives rise to optical effects which would not otherwise be apparent.
Patent CA-2190173-A1 (CA)
Title: Molded polyurethane srim articles
Inventor: TURNBACH JAMES
IPC: C08G18/66
Filed: 1996-11-12
Abstract: The invention provides polyurethane components and compositions capable of providing internal mold release properties in SRIM applications. The polyol composition of the invention has an isocyanate reactive polyol (A) having a number average molecular weight from 100 to about 10,000 and an effective amount of internal mold release composition (B) having a silicon-containing polymer (a) and an at least diester functional compound (b) which is the reaction product of (i) an aromatic carboxylic acid, and (ii) alcohols having from 2 to 30 carbons.      The invention further provides an SRIM polyurethane composition useful in the preparation of molded polyurethane articles having internal mold release properties, the composition comprising an isocyanate component (I) and the isocyanate reactive polyol composition (component (II)) disclosed above.      In another aspect of the invention, the invention provides methods of using the claimed compositions as well as the rigid cellular polyurethane SRIM articles resulting from such processes.
Patent CA-2190555-A1 (CA)
Title: Connecting Element for a Stabilizing System for a Human Spine
Inventor: METZ-STAVENHAGEN PETER
IPC: A61B17/70
Filed: 1996-11-18
Abstract: Connecting element for fixing a rod at a pedicle screw or the like for a stabilizing system for a human spine, the element having a first section for receiving a pedicle screw and a second section for receiving and fixing by clamping the rod passed therethrough, wherein the second section is formed at a tension member having a thread shank, further a sleeve is slidingly arranged on the second section, the sleeve having a through-opening for the shank and two openings opposed to each other in the wall or recesses being closed towards the shank for the rod, and a nut screwable onto the shank is provided in order to fix the sleeve at the head of the pedicle screw.
Patent CA-2190767-A1 (CA)
Title: Air Infiltration Inhibitor in Fuel Dispensing Lines
Inventor: BROLINE RUSSELL L
IPC: B67D7/76
Filed: 1995-07-13
Abstract: A device used in liquid fuel dispensing systems to inhibit the infiltration of air into the product dispensing line due to thermal contraction. A fluid tight container (44) is connected with the product line (24) and supplied with fuel in an amount sufficient to make up the liquid volume loss caused by thermal contraction. A vent (78) for the container (44) is normally closed by a valve (62) under normal pressures of the dispensing system. When thermal contraction reduces the product line (24) pressure far enough to create a vacuum, the valve (62) opens the container vent (78) so that the fuel in the container (44) can flow into the product line (24) to keep it full or liquid and avoid drawing air into the line.
Patent CA-2191148-A1 (CA)
Title: Apparatus for measuring formation resistivity through a conductive casing having a coaxial tubing inserted therein
Inventor: GISSLER ROBERT W
IPC: E21B17/10
Filed: 1996-11-25
Abstract: An apparatus for measuring the resistivity of earth formations penetrated by a wellbore having a conductive conduit. The apparatus includes an elongated sonde mandrel, a plurality of electrodes positioned at axially spaced apart locations along the mandrel, the electrodes being electrically insulated from the mandrel and from each other, the electrodes adapted to electrically contact the conduit and positioned collinearly so that the electrodes contact the conduit when the mandrel is radially displaced towards the wall of the conduit. Some electrodes are for injecting electrical current into the conduit, other electrodes are for measuring voltage drop along the conduit at axially spaced apart locations. The mandrel includes selectively extensible locking arms for urging the mandrel into contact with the conduit. The arms are radially positioned opposite to the electrodes. The apparatus includes a source of electrical current connected to the current injector electrodes, a circuit for measuring output of the source of electrical current, voltage measuring circuits connected to the voltage drop electrodes, and means for recording measurements of current and voltage drop.
Patent CA-2191612-A1 (CA)
Inventor: IMMER HANSUELI
IPC: C07K14/47
Filed: 1995-05-30
Abstract: The invention relates to a process for the preparation of cardiodilatin fragments, to highly purified cardiodilatin fragments, and to appropriate intermediates for the preparation of said fragments. Furthermore, the invention relates to highly purified cardiodilatin fragments which are free of peptide impurities and exhibit a single migration peak in capillary electrophoresis, as well as to appropriate processes for the preparation of same.
Patent CA-2194643-A1 (CA)
Title: Orthodontic device
Inventor: WILLIAMS MICHAEL O
IPC: A61C7/00
Filed: 1997-01-08
Abstract: A orthodontic appliance having a midarch expander positioned between two forward orthodontic bands to effect intercanine arch length development and bilateral spring-loaded telescopic rod and tube assemblies for molar distalization and added arch length development in the mandibular or maxillary bicuspid area. In one embodiment of the invention the midarch expander is an jackscrew complex connecting a bilateral palate plate. Each side of the palate plate is attached to a canine and a molar with an orthodontic band. In another embodiment of the appliance, a molded palate plate is divided into four sections, two forward sections and two rear sections. Each forward section is attached to a canine tooth and each rear section is attached to a molar with an orthodontic band. The midarch expander is positioned between the two forward sections and the two rear sections are attached to their respective forward section by a spring--loaded telescopic rod and tube assembly.
Patent CA-2196750-A1 (CA)
Inventor: TISCHENDORF ANDREW
IPC: E05B47/06
Filed: 1996-05-28
Abstract: A keyless locking mechanism for use in a door. An operator activates the system by means of a portable remote handheld controller (900, 1000) which transmits coded signals to a door lock device (29). The electronic and electromechanical device components are mounted within the void or hollow portions of existing door locking apparatus, such as within the hollow interior doorknob (30), or hollow cylindrical sleeve latch actuators, or beneath the interior rose or escutcheon plates. A sensor (510) or receiver/antenna is mounted within the outer doorknob receives and forwards the coded signals to a processor which compares them with a stored signal. If a match is made, the processor generates control signals for the electromechanical device, which acts solely along or about the locking axis to enable or disable the door locking assembly, according to the command initiated by the operator.
Patent CA-2197273-A1 (CA)
Title: Low profile flanged tee
Inventor: SISK DAVID E
IPC: F16L41/02
Filed: 1997-02-11
Abstract: A one piece, low-profile hopper tee is provided having a transverse, elongated hollow pipe section with an inlet opening formed at a midpoint in the top side and an integral flange formed around the inlet opening for attaching the hopper tee to an outlet end of a hopper. The distance from the longitudinal axis of the elongated hollow pipe to the top of the flange is not greater that 1.25 times the distance from the longitudinal axis of the elongated pipe section to the top surface of the elongated pipe section. There are wear saddles formed on each side of the flange between the flange and the elongated pipe section. The elongated pipe section has an inner diameter that is uniform at each and gradually increases to the midpoint so as to create a ramp from the inlet opening into the hollow pipe at the area of the wear saddles to facilitate flow of material into the pipe. An alternative embodiment of the low profile hopper tee includes an outflow opening in the bottom side of the elongated pipe and a swing-away door to seal the opening. The low profile swing-away door has a recessed central gasket for sealing the outflow opening when the door is in place.
Patent CA-2198996-A1 (CA)
Title: Thermal ink jet printhead driver overcurrent protection scheme
Inventor: BOLASH JOHN PHILIP
IPC: B41J2/05
Filed: 1997-03-03
Abstract: Disclosed is a method and apparatus for detection of low to moderate impedance short circuits on any driven line of a thermal ink jet printer to inhibit damage to printer driver circuitry, principally active elements thereof. The printer includes a printhead having a plurality of thermally activated print nozzles therein for ink ejection upon thermal agitation of the ink within the nozzle, and data and address drive lines driven by data line and address line drivers for selection and activation of nozzle heater active elements associated with each of the nozzles by effecting current flow through a heater element associated with each of said nozzles upon selection by associated address and data line activation. One method includes the steps of energizing one of a data line and address lines associated with at least one thermal ink jet nozzle on the printhead, detecting a lower than normal impedance on the energized line, and inhibiting further activation or energization of at least one of the data and address line drivers. The inhibiting step may be accomplished, for example, by disabling the power supply associated with driver associated with the line having lower than normal impedance and/or by preventing the printer driver circuit from providing data and/or address signals to the printhead.
Patent CA-2203494-A1 (CA)
Title: Energy transfer dyes with enhanced fluorescence
Inventor: LEE LINDA G
IPC: C09B11/08
Filed: 1997-04-23
Abstract: Novel linkers for linking a donor dye to an acceptor dye in an energy transfer fluorescent dye are provided. These linkers faciliate the efficient transfer of energy between a donor and acceptor dye in an energy transfer dye. One of these linkers for linking a donor dye to an acceptor dye in an energy transfer fluorescent dye has the general structure R21Z1C(O)R22R28 where R21 is a C1-5 alkyl attached to the donor dye, C(O) is a carbonyl group, Z1 is either NH, sulfur or oxygen, R22 is a substituent which includes an alkene, diene, alkyne, a five and six membered ring having at least one unsaturated bond or a fused ring structure which is attached to the carbonyl carbon, and R28 includes a functional group which attaches the linker to the acceptor dye. <IMAGE>
Patent CA-2203949-A1 (CA)
Inventor: GROSHENS PIERROT
IPC: A41D27/06
Filed: 1997-04-29
Abstract: The present invention concerns a reinforcing base fabric (1) for fabrics, cloths, clothing, consisting of a weft knit fabric (2) comprising an insertion of reinforcing and stabilising yarns (3) extending in the direction of the weft between the rows, the reinforcing and stabilising yarns being flat and free from crimp stress.