baber/WOPTO huggingface dataset:
Patent CA-2032538-C (CA)
Title: Microcomputer-controlled electronic postage meter having print wheels set by separate d. c. motors
Inventor: SALAZAR EDILBERTO I
IPC: G07B17/00
Filed: 1990-12-18
Granted: 1996-07-30
Abstract: An electronic postage meter is disclosed which comprises a plurality of print devices each individually settable to a desired position so that the print devices may print a desired postage value; a plurality of d.c. motors, one for each of the plurality of the print devices, a different one of the d.c. motors being coupled to a different one of the print devices for setting the respective print device to a respective desired posi-tion; actual position sensing means for providing signals related to the actual positions of the print devices; and a microcomputer coupled to the d.c. motors and to the actual position sensing means.  The microcomputer in response to signals from the actual position sensing means, a desired postage value and programming of the microcomputer sequentially controls the d.c. motors to set the print devices to respective desired positions for printing the desired postage value.  The microcomputer includes a single microprocessor which performs all electronic control functions of the postage meter including time-intensive closed loop control of the d.c. motors, printing control and accounting.  The control loops include low cost, low bandwidth incremental quadrature en-coders.
Patent CA-2035274-C (CA)
Title: A wastewater treatment mechanism
Inventor: GRAVES JAN D
IPC: B01D21/00
Filed: 1991-01-30
Granted: 2000-04-18
Abstract: A mechanism for wastewater treatment which includes a plurality of solids settling chambers, at least a primary, secondary and a tertiary filter for selectively filtering waste-water and effecting settling of solids of different sizes in the settling chambers and flow equalization ports for effecting demand flow of wastewater through the mechanism and the eventual discharge of high quality effluent. Chlorination and optionally dechlorination are effected as integral process functions of the wastewater treatment mechanism.
Patent CA-2035321-C (CA)
Inventor: INAJI TOSHIO
IPC: H02P6/18
Filed: 1991-01-30
Granted: 1995-08-08
Abstract: A full wave drive brushless DC motor system detects zero-crossing points of counter electromotive forces respectively induced by the stator windings, and then pulse-shapes the thus detected zero-crossing points to obtain a pulse signal train, and then measures the period of the thus obtained pulse signal train to determine a conducting phase of the stator windings in response to the thus counted period.  The system is thereby capable of supplying an electric current bidirectionally to each of the stator windings without using a position sensor for detecting a position of a rotor.
Patent CA-2052793-C (CA)
Inventor: YAHIAOUI ALI
IPC: C04B41/48
Filed: 1991-10-04
Granted: 1998-02-10
Abstract: A method for modifying the surface of a material by: a.   exposing  the  surface  to  a  glow  discharge plasma to activate the surface, b.   exposing  the  surface  to  an  ethylenically unsaturated monomer or mixture of monomers; and c.   irradiating the activated surface with gamma radiation or electron beam radiation in the presence of the ethylenically unsaturated monomer to form a graft polymerized coating thereon.
Patent CA-2059389-C (CA)
Title: Thermoplastic resin composition
Inventor: YAMAMOTO YOHZOH
IPC: C08L33/06
Filed: 1992-01-15
Granted: 2000-03-07
Abstract: A thermoplastic resin composition according to the present invention comprises a polymer comprising recurring units derived from a polycyclic (meth)acrylate represented by the following formula [I] and a soft polymer in the proportion by weight of the polymer to the soft polymer of 99:1 to 90:60   wherein m is 0 or a positive integer, n is 0 or 1, R is hydrogen or methyl, R1-R18 are each independently an atom or a group selected from the group consisting of hydrogen, halogen and hydrocarbon groups, R15-R18, linked together, may form a monocyclic or polycyclic group which may have a double bond, or an alkylidene group, p is 0 or 1, and R a and R b each independently represent a hydrogen atom or a hydrocarbon group when p is 1.
Patent CA-2072507-C (CA)
Title: Power mine door system
Inventor: KENNEDY WILLIAM R
IPC: E05F15/04
Filed: 1992-06-26
Granted: 1999-07-06
Abstract: A power mine door system including a door frame to be installed in a mine passageway to define a generally rectangular doorway.  A mine door is defined by a pair of generally rectangular door leafs which are hinged on the door frame at opposite sides of the doorway for swinging between an open position to permit passage through the doorway and a closed position in which the door leafs are generally coplanar and close the doorway.  The door leafs are so dimensioned that there is a substantial vertical gap between the door leafs when they are closed to accommodate convergence of side walls of the passageway.  A relatively wide vertical sealing flap is secured to one of the door leafs for overlapping a face of the other door leaf when the door is closed for covering the gap between the door leafs.  A power mechanism for opening and closing the door leafs is operable to control the sequence in which the door leafs close so that the door leaf carrying the sealing flap closes after the other door leaf for ensuring that the sealing flap closes against the face of the other door leaf
Patent CA-2074355-C (CA)
Title: Method of producing fertile transgenic corn plants
Inventor: LUNDQUIST RONALD C
IPC: C12N5/10
Filed: 1991-01-14
Granted: 2008-10-28
Abstract: Fertile transgenic Zea mays (corn) plants which stably express recombinant DNA  which is heritable are provided wherein said DNA preferably comprises a recombinant gene which encodes a seed storage protein, so that the amino acid profile of the corn is improved.
Patent CA-2076652-C (CA)
Title: Methods and compositions for the identification, characterization and inhibition of farnesyl protein transferase
Inventor: BROWN MICHAEL S
IPC: A61P35/00
Filed: 1991-04-18
Granted: 2003-06-10
Abstract: Disclosed are methods and compositions for the identification, characterization and inhibition of farnesyl protein transfer-ases, enzymes involved in the farnesylation of various cellular proteins, including cancer related ras proteins such as p21ras. One farnesyl protein transferase which is disclosed herein exhibits a molecular weight of between about 70,000 and about 100,000 up-on gel exclusion chromatography. The enzyme appears to comprise one or two subunits of approximately 50 kDa each. Methods are disclosed for assay and purification of the enzyme, as well as procedures for using the purified enzyme in screening protocols for the identification of possible anticancer agents which inhibit the enzyme and thereby prevent expression of proteins such as p21ras. Also disclosed is a family of compounds which act either as false substrates for the enzyme or as pure inhibitors and can therefore be employed for inhibition of the enzyme. The most potent inhibitors are ones in which phenylalanine occurs at the third position of a tetrapeptide whose amino terminus is cysteine.
Patent CA-2077441-C (CA)
Title: Production of synthetic rutile
Inventor: HOLLITT MICHAEL JOHN
IPC: C22B3/10
Filed: 1991-03-01
Granted: 2005-05-10
Abstract: The specification describes a process for producing synthetic rutile from a titaniferous ore or concentrate.      The process involves three basic steps which are reduction, removal of iron by leaching or aeration and removal of other impurities by leaching in a solution of a strong mineral acid such as hydrochloric acid or sulphuric acid. The conditions of reduction are controlled to promote the formation of metallic iron, a major rutile phase and a minor impurity bearing phase.      The minor impurity phase may be a metatitanate, an anosovite or a pseudobrookite. However, formation of a metatinatate is normally preferred. Suitable reductants include carbonaceous materials or hydrogen bearing gases such as natural gas or synthesis gas. The process is capable of removing more than 80% of each of the contained iron magnesium and manganese remaining as oxides after reduction. Substantial proportions of contained aluminium can also be removed.
Patent CA-2081135-C (CA)
Inventor: KRULIK GERALD A
IPC: G03F7/30
Filed: 1992-10-22
Granted: 1997-08-12
Abstract: The use of aluminum sulfate to neutralize alkaline solu-tions yields a gelatinous precipitate.  When neutralization of the solution causes other materials to precipitate along with the gel, filtration of the precipitated materials is very difficult because of the gel.  The addition of water soluble magnesium, aluminum, and/or calcium salts as primary neutral-izing agents for an alkaline stripper solution of a photoresin, followed by the acidification of the resulting slurry to a pH of from about 2 to about 4 gives a slurry of the precipitated resin which may be filtered quickly.
Patent CA-2083237-C (CA)
Title: Stacked termination resistance
Inventor: GALLUSSER DAVID OTIS
IPC: H01C1/14
Filed: 1992-11-18
Granted: 2002-07-09
Abstract: A resistance stack for terminating a data bus cable includes a stack of resistor chips, each having two conductively plated through holes. The resistance elements are kept in alignment and electrically connected to leads of the data bus cable by elongated members extending through the through holes. The elongated members may be discrete conductive rods, or soldered and pre-tinned leads of the cable. To facilitate assembly, solder preforms are provided between each of the resistor chips. The resistance stack is enclosed in a package which includes a cylindrical shell, a cable clamp, a cable strain relief member, and an end cap including a track for accommodating extensions of the elongated members beyond the last resistor in the stack, thereby aligning the elongated members. The package may be both electrically shielded and environmentally sealed.
Patent CA-2085153-C (CA)
Inventor: PORTAS FRANCESCO
IPC: H02G15/18
Filed: 1992-12-11
Granted: 2000-07-11
Abstract: A tubular supporting element for supporting an elastic sleeve for covering a junction of cables which is provided with a well which has a groove or incision directed according to a helical line and which has a radial depth from the outer surface of the supporting element less than the radial thickness of the supporting element. The incision has a mouth at the outer surface of the supporting element with a width of less than 0.1 mm, preferably less than 0.05 mm, so as to provide a strip between the incision having a substantially rectangular cross-section. Also, a process and an apparatus for making the tubular supporting element have been developed.
Patent CA-2086646-C (CA)
Title: Deformable label
Inventor: SCHULTZ MARVIN I
IPC: G09F3/02
Filed: 1993-01-04
Granted: 1995-07-18
Abstract: A deformable label for application to a surface comprises a film containing from about 50 wt.% to about 70 wt.% high density polyethylene; from about 5 wt.% to about 15 wt.% filler; from about 5 wt.% to about 10 wt.% polypropylene or an ionomer resin derived from a copolymer of ethylene and methacrylic acid; and from about 5 wt.% to about 15 wt.% colorant.
Patent CA-2088180-C (CA)
Title: Ladder climbing safety clamp
Inventor: CASEBOLT SCOTT C
IPC: E06C7/18
Filed: 1993-01-27
Granted: 1995-09-05
Abstract: A ladder climbing saftey clamp that may be easily operated by a worker with one hand while overcoming many potential safety hazards of prior devices.  The safety clamp includes a body with a U-shaped cable sleeve.   A channel is included on one side of the body to permit the introduction  of  the  safety line  in  the  cable  sleeve. However, if the cable is too large to operate properly with the safety clamp,  it will not fit through the channel, thereby helping to prevent inadvertent usage of the safety clamp with a cable of a diameter for which it is not intended.  A gravity stop is also provided to prevent the safety  clamp  from being  inadvertently  installed  in an upside-down position,  since the safety clamp would not operate correctly in that position.
Patent CA-2093449-C (CA)
Title: Electronic film development
Inventor: EDGAR ALBERT D
IPC: G03B27/80
Filed: 1993-04-06
Granted: 1997-06-17
Abstract: A method,  system  and process  for  developing  a  film  to produce a digital image by scanning an image on the film as it develops and creating a digital representation of the image on the film.
Patent CA-2095130-C (CA)
Title: Deflection compensated forming wire turning bar
Inventor: EWALD JAMES L
IPC: D21F1/48
Filed: 1991-10-28
Granted: 1995-07-18
Abstract: A mechanism and method for initially dewatering a paper stock slurry between looped traveling forming wires (10, 11) wherein the wires pass over turning bars (14, 15; 16, 17), controlling the cross-machine curvature of the turning bars to compen-sate for variations in curvature due to temperature effects on the turning bar and to control the cross-machine curvature of the turning bar to a predetermined fixed shape for wide machines to control the travel of the wire over the bars by applying bending moments to a support beam (18, 19; 55, 56) for the turning bar such as by providing separate liquid chambers (30, 31; 34, 35) in the beam and directing (18a, 18b, 19a, 19b) heated or cooled water into the chambers to bend the bar to either a positive crown, to be straight or to a negative crown.
Patent CA-2099048-C (CA)
Title: Cosmetic dispenser with long lasting swivel drag effect
Inventor: HOLLOWAY THOMAS F
IPC: A45D40/06
Filed: 1993-06-23
Granted: 1995-04-11
Abstract: A cosmetic preparation dispenser is provided that has a resilient tab formed on the lower end of the innerbody that presses against the cam sleeve to provide a desirable swivel drag, and which tab is prevented from undesirable deformation that reduces the swivel torque by providing a relaxation zone in the cam sleeve where the tab can recall its original shape.   The relaxation zone is preferably a thin walled section of the cam sleeve that is formed by the combination of a flat outer wall  and a circular inner wall, which thin walled section is deformable by pressure from the tab when the tab is seated against the thin walled section.  The tab presses against the cam sleeve which causes the cam sleeve to move up a bevelled shoulder to enhance swivel drag between the cam sleeve and a retaining lip on the innerbody.   The bevelled shoulder also engages the cam sleeve when force is applied to the elevator.
Patent CA-2113064-C (CA)
Title: Multilayer, extended text label
Inventor: COWARD ROD
IPC: B32B7/06
Filed: 1994-01-07
Granted: 1998-09-15
Abstract: A label  is disclosed which includes a first,  base layer coated with a pressure sensitive adhesive for attachment to a selected product.  A layer of release material is coated onto a portion of the base layer.  A second layer is coated on a portion of its underside with a pressure sensitive adhesive for permanent attachment to the base layer in regions thereof that are not coated with release material,  and temporary attachment to the base  layer  in  regions  thereof  that  are  coated with  release material.
Patent CA-2113843-C (CA)
Title: Self-opening polyethylene bag stack and process for producing same
Inventor: BEASLEY M WAYNE
IPC: B29C48/32
Filed: 1993-05-10
Granted: 1996-06-11
Abstract: The invention provides self-opening polyethylene film bag stacks which do not require a separate adhesive layer between adjacent bags.  The self-opening bag stack according to the invention preferably include a plurality of stacked t-shirt type high density polyethylene film bags releasably adhered together.  At least an upper portion of the outer surface of the front and rear walls of each of the bags in the bag stack has been corona treated and at least one localized compressed area extends transversely through the bag stack in the upper portion of the bags such that the stack has a decreased thickness in the localized compressed area and so that adjacent outer wall corona treated surfaces defined by the localized compressed area are releasably adhered together.
Patent CA-2120771-C (CA)
Inventor: LIGHT HERBERT M
IPC: G10D3/00
Filed: 1992-09-18
Granted: 1996-07-02
Abstract: A humidifier for a wooden stringed instrument. The humidifier comprises a stiff, vapor-permeable tubular member having a cap attached to one end thereof. The humidifier is supported in a hole in the sidewall of the stringed instrument, the stiffness of the tubular member allows the humidifier to be cantilevered within the sound box so that the tubular member does not contact the interior of the sound box. In a preferred embodiment, the humidifier is mounted in a hole extending through the string anchor insert of the instrument.
Patent CA-2124295-C (CA)
Title: Selective clogging of failed fibers
Inventor: SOFFER ABRAHAM
IPC: B01D63/02
Filed: 1994-05-25
Granted: 2001-04-10
Abstract: A method of selectively clogging failed hollow fibers of a membrane module packed together with a plurality of non-failed fibers in a shell-and-bore arrangement comprises: (i) Holding the module vertically and bringing the module end into contact with a liquid sealant; (ii) Causing the liquid sealant to rise into the failed fibers to a height greater than that of the failure; (iii) Allowing the sealant to solidify at least partially; (iv) Cutting off a length of the fiber bundle of such height that non-failed fibers bores are exposed while failed fibers remain clogged.
Patent CA-2128925-C (CA)
Title: Bonded seat assembly
Inventor: NIXON JAMES FRANCIS
IPC: B29C65/48
Filed: 1994-07-27
Granted: 1999-04-06
Abstract: Seat cushions and backs comprising a foam bun and a trim cover are made by applying a hot melt bead to the trim cover or the foam bun in a predetermined pattern that matches or produces style conformations in the seating portion, pressing the trim cover and the foam cushion together in localized areas within a predetermined amount of time with a tool that has railsarranged in the same predetermined pattern to establish intimate contact of the cover and bun with the hot melt bead, and holding the trim cover and the foam cushion in intimate contact with the hot melt bead for a predetermined amount of time while the hot melt bead cools and bonds the trim cover to the foam cushion beneath the style conformations. The tool or at least the rails preferably provide a heat sink to facilitate cooling the hot melt adhesive bead.The bonding method can be used with a wide variety of seating materials including heat-sensitive seating fabrics and laminates and foam-backed seating materials.
Patent CA-2130618-C (CA)
Title: Stereoselective process for preparing .beta.-anomer enriched 2-deoxy-2,2-difluoro-d-ribofuranosyl-3,5-hydroxy protected-1-alkyl and aryl sulfonate intermediates
Inventor: JONES CHARLES DAVID
IPC: C07H11/00
Filed: 1994-08-22
Granted: 2006-02-14
Abstract: A stereoselective process for preparing a .beta.-anomer enriched 2-deoxy-2,2-difluoro-D-ribofuranosyl-3,5-hydroxy protected-1-alkyl and aryl sulfonate intermediates by contacting an .alpha.-anomer enriched 2-deoxy-2,2-difluoro-D-ribofuranosyl-3,5-hydroxy protected-1-fluoroalkyl and fluoroaryl sulfonate with a conjugate anion of a sulfonic acid containing the desired alkyl or aryl sulfonate.
Patent CA-2135766-C (CA)
Title: Flexible container with nonstick interior
Inventor: QUICK JAMES R
IPC: B65D30/02
Filed: 1993-05-14
Granted: 2004-07-20
Abstract: A flexible container for the packaging of products having a pressure sensitive adhesive (92) thereon, such as sanitary napkins. The container is formed of paper or plastic film (16) coated on one side with a layer of silicone, the container construction being such that the silicone coating defines the interior surfaces of the container. Due to the nonstick characteristic of the silicone coating, the usual protective layer for the adhesive on the packaged product can be omitted.      The side seams of the container are formed by the application of heat or ultrasonic energy in combination with mechanical deformation of the paper or film to produce embossments (18) in the seam areas. The side seams may comprise two or three layers of material. The nature of the side seams may be such that the container may be opened by peeling apart the seams, or the seams may be sealed so tightly that the container can be opened only by tearing the material.
Patent CA-2143837-C (CA)
Title: Wide load matching capability power supply
Inventor: HAVAS GEORGE
IPC: H02M7/523
Filed: 1993-12-01
Granted: 1997-11-18
Abstract: <IMG> <IMG> <IMG> A high frequency power inverter comprises a power supply (20), a thyristor (SCR5 or SCR6) for switching the energy from the power supply to a load (10) and a neutral capacitor (C3) for storing energy cyclically to assure reverse voltage is applied to the thyristor (SCR5 or SCR6). A clamp circuit (L9, L10, D3, D4) is comprised of an inductor (L9 or L10) having a relatively large value for permitting a gradual leaking of the capacitor voltage during an inverting of the power supply voltage to the load (10) so that the capacitor (C3) can ring-up to a higher value than the supply voltage. The inductor (L9, L10) is selected so that under all conditions, the voltage on the capacitor (C3) will be safely larger than the power supply voltage plus a load voltage peak for a time long enough to assure thyristor turn off.
Patent CA-2147342-C (CA)
Title: Food products packaging and food preparation prepacked using thereof
Inventor: COUPE JAMES
IPC: B65D77/22
Filed: 1995-04-19
Granted: 2001-08-14
Abstract: The valve (15), set in one wall (12a) of the container, has one chamber (38) in communication with the outside atmosphere and containing a shut-off element (35), and a second chamber (40) which is linked to the first by a passage (31) covered by the shut-off element. The second chamber is connected to the interior of the container through a channel (41) and holds a block (44) of a thermo-fusible material. The valve housing (18) has an annular collar (17) to attach it to the container wall. As the food product inside the container is cooked the steam and vapours are able to escape through the valve. At the same time the block of easily-fusible material (44) becomes molten. At the end of the cooking process it is drawn into the channel (41) and seals it, preventing the ingress of external air. <IMAGE>
Patent CA-2154246-C (CA)
Title: Production of particle-stabilized metal foams
Inventor: THOMAS MARTIN
IPC: C22C1/08
Filed: 1994-01-21
Granted: 2004-04-06
Abstract: The invention relates to a process for producing a particle-stabilized metal foam from a composite capable of acting as a precursor composite for the metal foam. The precursor composite is formed by heating a matrix metal, e.g. aluminum or an aluminum alloy, above its liquidus temperature to form a liquid matrix metal, adding to the liquid matrix metal stabilizer particles capable of remaining dispersed within the matrix metal, e.g. MgO particles preferably in the form of agglomerates of particles and some fine particles, and mixing the liquid matrix metal and stabilizer particles under a covering gas, e.g. air, in such a way that bubbles of the gas, as well as the stabilizing particles, ace dispersed throughout the matrix metal. The precursor composite can then be foamed by the introduction of a gas by a known technique to form a particle-stabilized metal foam. The entrainment of gas bubbles means that a microporosity may be introduced into see of the cell walls of the composite, which is retained when the composite is transformed into a metal foam.     The foam product has improved crush and machining properties.