baber/WOPTO huggingface dataset:
Patent CA-1289837-C (CA)
Title: Dual coil steerable guidewire
Inventor: GAMBALE RICHARD A
IPC: A61B6/00
Filed: 1988-01-06
Granted: 1991-10-01
Abstract: DUAL COIL STEERABLE GUIDEWIRE                ABSTRACT OF THE DISCLOSURE     A steerable guidewire has an elongate main wire having a tapered distal portion and a helical coil mounted about the distal portion.  The distal end of the coil extends beyond the distal tip of the tapered distal portion of the main wire.  An inner helical coil is disposed within the outer coil is secured at its proximal end to the distal tip of the tapered distal portion of the main wire and at its distal end to the distal end of the outer coil.  The device does not have a separate safety wire, the inner coil serving as the sole safety connection between the main wire and the outer coil.  The omission of the conventional safety wire and the use of the dual coil construction provides a tip which is equally flexible in all directions.  Gradual selected transitions in stiffness may be achieved by varying the spacing of the individual turns of the inner and outer coils.  The guidewire also provides for a change in the radiopacity of the distal portion of the guidewire to provide a more radiopaque segment at the distal portion than at the more proximal portions by forming the inner coil from a more radiopaque material than the outer coil.
Patent CA-1316540-C (CA)
Title: Aminohydrocarbyl-substituted ketoximosilanes
Inventor: GORNOWICZ GERALD A
IPC: C07F7/18
Filed: 1988-01-22
Granted: 1993-04-20
Abstract: NOVEL AMINOHYDROCARBYL-SUBSTITUTED KETOXIMOSILANES   ABSTRACT OF THE DISCLOSURE     This invention pertains to novel silanes wherein the silicon atom is bonded to at least one ketoximo group and a carbon atom of a primary or secondary amino group.  The remaining substituents on the silicon atom are alkoxy groups  and/or  monovalent  hydrocarbon  radicals.  The aminohydrocarbyl-subskitutedketoximosilanesofthepresent invention are useful as curing agents for moisture curable polyorganosiloxane compositions.
Patent CA-1291515-C (CA)
Title: Eddy current retarders for vehicles
Inventor: CHARBONNIER MARC
IPC: H02K49/04
Filed: 1988-02-12
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE           An electric retarder for vehicle  is provided , comprising on the one hand an inductor stator comprising a ring of electric coils  (3)  supported by an annular framework (1), which framework includes a central socket (5),radial arms (6) extending this socket and a ring (8) carried  by  these  arms  and  supporting  the  coils,  and on  the  other  hand,  an armature  rotor  comprising  two magnetic disks (20) both connected, through rings of bent arms  (14),  to  a  central  collar  (15),  itself  secured angularly to a section (17) of the shaft of the vehicle to be slowed down. The socket has a truncated cone shape, the collar is connected to a central cylindrical pot (16) covering  the narrow  end of  the  socket  and  the  shaft section is mounted in this socket via a small bearing (19) housed in the pot and a large bearing (20), of the axial thrust type,  disposed at the widened end of the socket.
Patent CA-1310162-C (CA)
Title: Method and device for laying out profiled sheet
Inventor: ERIKSSON ANDERS
IPC: E04D3/36
Filed: 1988-02-15
Granted: 1992-11-17
Abstract: ABSTRACT The invention relates to a method of laying out profiled sheet (1) for building purposes, the profiled sheet beeing re-inforced by means of supporting members (10) in an area of a beam (2) carrying the profiled sheet (1). The supporting mem-bers (10) consist of a profiled band intended to be placed be-tween the beam (2) and the profiled sheet (1). According to the invention a supporting member is first placed on the beam and a profiled sheet is thereafter laid on top of the support-ing member after which another supporting member is placed on the beam, said further supporting member connecting to the previously laid-out profiled sheet and/or the previously placed supporting member in an upwardly guiding way, after which another profiled plate is laid out on top of the further supporting member etc. The invention also relates to support-ing members for carrying out the method.            _______________ (Fig. 1)
Patent CA-1293659-C (CA)
Title: In-line power venter
Inventor: GUZOREK STEVEN E
IPC: F23L17/00
Filed: 1988-02-25
Granted: 1991-12-31
Abstract: ABSTRACT OF THE DISCLOSURE         An in-line power venter insertable into a vent pipe and having a housing attachable to the vent pipe. The housing has separate negative and positive pressure  chambers  provided  by  a  separator  plate positioned within the housing and having an opening for flow of gas to a blower wheel in the positive pressure chamber.  The separator plate has a pair of generally semicircular, oppositely-extending sections disposed above the housing for insertion into the vent  pipe  to  positively  separate  negative  and positive pressure  zones within  the vent pipe.   A flow-regulating plate for draft control is mounted within  the  housing  and  is  manually-adjustable externally of the housing for movement toward and away  from  an  opening  in  the  separator plate  to control the  flow rate through the opening to the central area of the blower wheel.
Patent CA-1295149-C (CA)
Inventor: HOSHIRO TAKESHI
IPC: F16G5/18
Filed: 1988-03-03
Granted: 1992-02-04
Abstract: POWER TRANSMISSION BELT                Abstract of the Disclosure A power transmission belt having a flexible chain link midportion  11  defining  a  longitudinally  continuous  belt structure having opposite laterally outer  side portions. Mounting elements 14,15 protrude from the side portion at spaced intervals longitudinally of the belt and side ele-ments 16 are freely adjustably mounted one each to the pro-truding mounting element portions 15.  The side elements define an outer surface for engaging the sidewall of a drive pulley V-groove.  The invention further comprehends the pro-vision of positioning elements 26 for retaining the side elements on the mounting elements, with the outer surfaces 17 of the side elements generally parallel to the V-groove sidewalls of the pulley for facilitating facial engagement of the side elements with the sidewall of the pulley groove when brought thereinto.
Patent CA-1333318-C (CA)
Title: Method of sealing shoe in the sole region
Inventor: HUBNER THORGER
IPC: A43B7/12
Filed: 1988-04-14
Granted: 1994-12-06
Abstract: This invention relates to a method of sealing in a water-impermeable manner, the connecting region between a waterproof shoe upper and the insole region of a shoe by means of a layer of liquefiable material that is waterproof in the hardened state.  The layer is injection molded onto the connecting region with the aid of an injection mold, characterized in that the injection mold is applied to the bottom sole of the shoe upper, connected to the insole region.  The mold has sealing lip assembly upstanding towards the insole region and extends on both sides of the connecting region to be sealed so that the layer is injection molded into the portion confined by the sealing lip assembly.
Patent CA-1328206-C (CA)
Title: Wound dressing
Inventor: BAY MICHAEL
IPC: A61L2/26
Filed: 1988-04-22
Granted: 1994-04-05
Abstract: ABSTRACT                      WOUND DRESSING      A  sterile  sealed  flexible  package  contains  a transparent sheet form wound dressing which comprises a wholly synthetic hydrophilic water-insoluble cross-linked polymer swollen with an aqueous liquid. The package is formed by introducing the sheet form polymer and aqueous liquid into the flexible package, sealing the package and then  sterilising  it  in  an  autoclave  in  which  the temperature and pressure and independently variable. The polymer is usually formed by polymerising ethylenically unsaturated  monomers,  usually  acrylic  monomers,  e.g. hydroxy  alkyl  (meth)  acrylates  and/or  (meth)  acrylic acid,  with  copolymerisable  ethylenically  unsaturated cross-linking agent, and is capable of absorbing at least its own dry weight of 0.9% by weight saline. The swollen polymer gel is used as a wound dressing.
Patent CA-1296606-C (CA)
Title: Vacuum bagging process and apparatus
Inventor: RACHAL DUANE M
IPC: B29C43/12
Filed: 1988-05-10
Granted: 1992-03-03
Abstract: ABSTRACT OF THE DISCLOSURE A forced jet convection oven is utilized for the production of thermoplastic composite laminates containing reinforcing fiber. A special gas jet arrangement to accommodate the high temperatures involved is also disclosed. Further disclosed is a multiple vacuum bagging layup and novel vacuum bagging techniques.
Patent CA-1319454-C (CA)
Title: Method and system for eliminating cross-talk in thin film transistor matrix addressed liquid crystal displays
Inventor: CASTLEBERRY DONALD E
IPC: G02F1/133
Filed: 1988-05-12
Granted: 1993-06-22
Abstract: RD-17,357 METHOD AND SYSTEM FOR ELIMINATING CROSS-TALK   IN THIN FILM TRANSISTOR MATRIX ADDRESSED        LIQUID CRYSTAL DISPLAYS                 Abstract of the Invention In a liquid crystal display, and more particu-larly, in a thin film transistor matrix addressed liquid crystal display, a method and means are provided for assur-ing the presence of a constant RMS voltage waveform on the data lines.  This eliminates uncertainty in the voltage levels on a pixel element caused by parasitic capacitance effects between the data lines and the pixel electrodes. The present invention is also particularly applicable to both binary level and gray scale level devices.  Means for carrying out the present method are illustrated in both analog and digital form.
Patent CA-1295845-C (CA)
Title: Jewelry device
Inventor: DEBOER GAIL
IPC: A44C15/00
Filed: 1988-05-16
Granted: 1992-02-18
Abstract: ABSTRACT OF THE DISCLOSURE        A jewelry device for converting a button of the type including a rear lug with a hole therethrough into an earring or other article of jewelry includes a thin, elongated body with one inverted V-shaped end for insertion into the hole in the button lug and an arm perpendicular to such one end for insertion through a pierced ear or carrying a conventional ear clip for non-pierced ears.  The arm can also be inserted into a conventional keeper or catch when the device is to be used for converting the button to a broach, or other article of jewelry.
Patent CA-1298148-C (CA)
Title: Electrostatic powder spray gun with adjustable deflector and electrostatic shield
Inventor: MURPHY JAMES C
IPC: B05B5/03
Filed: 1988-06-13
Granted: 1992-03-31
Abstract: Abstract of the Disclosure An electrostatic spray device having a gun barrel formed with a powder delivery passageway connected to a source of particulate powder material, a nozzle mounted at the forward end of the gun barrel which is formed with a discharge opening for emitting coating particles, a deflector carrying an electrode which produces an electrostatic field in the path of the coating particles emitted from the discharge opening and a pattern adjustment sleeve carried by the gun barrel which is radially outwardly spaced from the deflector and discharge opening.  Both the deflector and pattern adjustment sleeve are axially movable relative to one another, and relative to the discharge opening, to vary the width of the spray pattern of coating particle emitted from the discharge opening while controlling the concentration of the electrostatic field produced by the electrode, and, accordingly, the level of ionic bombardment of the powder particles, so as to obtain an optimum electrostatic charge on the coating particles emitted from the discharge opening.
Patent CA-1336391-C (CA)
Title: Fungicidal toxin and method and inoculum for controlling root rot and damping off
Inventor: HANDELSMAN JO
IPC: A01N63/22
Filed: 1988-07-14
Granted: 1995-07-25
Abstract: The invention includes a substantially pure preparation of Bacillus cereus antibiotic. The invention further includes a seed inoculum for application to seeds to be protected from damping off and root rot including a non-interfering carrier and an effective quantity of Bacillus cereus antibiotic, and a method for protecting plants in a growing medium from damping off and root rot including the step of placing in the growing medium in the immediate vicinity of the plant to be protected an effective quantity of Bacillus cereus antibiotic.
Patent CA-1290865-C (CA)
Title: Hot electron transistor
Inventor: LEVI ANTHONY F J
IPC: H01L29/68
Filed: 1988-07-18
Granted: 1991-10-15
Abstract: HOT ELECTRON TRANSISTOR     Abstract An improved compound semiconductor hot electron transistor (HET) having room temperature current gain .beta.>10 is disclosed. Disclosed are also means by which improved HET performance can be obtained. Among these means is choice of the base layer material such that the hot electrons injected into have ki,2/ki,1 < 0.2, where ki,1 and ki,2 are the components of the electron wave vector respectively normal and parallel to the emitter/base interface. A further means is choice of collector material such that the hot electron velocity component normal to the base/collector interface remains relatively unchanged upon passage of the hot electron through the base/collector interface. For instance, an appropriate superlattice in the collector region may be used to achieve such matching. Causing quantization of the ambient charge carrier states in the base can reduce hot electron scattering in the base. In bipolar HETs such scattering can also be reduced if the effective heavy hole mass in the base is much larger (e.g., x10) than the effective electron mass in the forward direction. A strained base layer may be used to achieve this.
Patent CA-1318908-C (CA)
Title: Low pressure catalytic hydrogenation of carbonyl- containing compounds and catalysts therefor
Inventor: GUSTAFSON BRUCE L
IPC: C07C31/02
Filed: 1988-08-02
Granted: 1993-06-08
Abstract: LOW PRESSURE CATALYTIC HYDROGENATION OF     CARBONYL-CONTAINING COMPOUNDS      AND CATALYSTS THEREFOR                       Abstract Process for the hydrogenation of carbonyl-containing compounds at mild conditions of tempera-ture and pressure to produce alcohols or amines is disclosed, employing palladium and zinc-containing catalysts.  Methods for the preparation of the palladium and zinc-containing catalysts useful for the desired reductive conversion are also disclosed.     le0378F
Patent CA-1335618-C (CA)
Title: Curable polyurethane compositions
Inventor: ANSELL CHRISTOPHER W G
IPC: C08G18/80
Filed: 1988-08-26
Granted: 1995-05-16
Abstract: A radiation curable composition for an adhesive includes a polyurethane, for example a polyurethane comprising residues of a polyether diol or a polyester diol, capped with residues of a hydroxyalkyl acrylate or methacrylate and non-polymerisable residues of a primary or secondary alcohol.  The compositions may be cured to form a pressure sensitive adhesive and can be employed to produce adhesive dressings by coating a suitable substrate with the composition and thereafter curing the coated composition by, for example, electron beam or ultra violet irradiation.
Patent CA-1321746-C (CA)
Title: Method and kit for assaying gene expressions
Inventor: WANG CHIA-GEE
IPC: C12Q1/6813
Filed: 1988-08-26
Granted: 1993-08-31
Abstract: A B S T R A C T A method of assaying gene expressions comprises linking mRNA molecules, including certain target mRNA molecules to be assayed, to a solid substrate; contacting said solid substrate with an aqueous suspension of labelled microbeads to which gene probe molecules are linked, said gene probe molecules comprising sequences which hybridize with sequences comprised by and characteristic of said certain target mRNA molecules to be assayed, thereby selectively linking said labelled microbeads to said certain target mRNA molecules to be assayed which are linked to said substrate; separating the solid substrate from microbeads which are not linked to said target mRNA molecules; and determining the presence or quantity of said labelled, linked microbeads: thereby selectively assaying said gene expressions.
Patent CA-1336683-C (CA)
Inventor: CARTER WILLIAM A
IPC: A61P31/12
Filed: 1988-09-01
Granted: 1995-08-15
Abstract: A diagnostic procedure for determining a double-stranded RNA (dsRNA) deficiency state in a patient's sample, quantifying this deficiency (if any), and therpeutically restoring any deficiency by the administration of exogenous dsRNA, optionally in combination with a lymphokine is provided.          Patients with unresolved and indolent viral infections often have specific defects in vital intracellular dsRNA-dependent pathways which can be reversed or ameliorated at least in part by an exogeneously supplied dsRNA.
Patent CA-1333164-C (CA)
Inventor: BAIRD WILLIAM R
IPC: C10B43/04
Filed: 1988-09-12
Granted: 1994-11-22
Abstract: A coke oven door cleaner including a wire rope cleaning assembly which is oscillated by a mechanical drive structure and which is in engagement with the seal on a coke oven door to clean the seal as well as the side of the refractory plugs provided on coke oven doors.  The cleaner includes a mainframe with guide rollers mounted therein with the guide rollers supporting a carriage that supports the wire rope cleaning assemblies which engage the seal and refractory plugs on the coke oven door.  The cleaner can be used with various types of coke oven doors having various types of seals associated therewith.
Patent CA-1293776-C (CA)
Title: Phase detector
Inventor: ROSS MICHAEL
IPC: H03L7/00
Filed: 1988-12-01
Granted: 1991-12-31
Abstract: PHASE DETECTOR            Abstract of the Disclosure A phase detector includes a bridge of FETs which are simultaneously rendered conductive by pulses of a reference signal having a very small duty cycle.  A higher frequency signal, whose phase in relation to the reference signal is to be detected, is supplied to a gate of one of the FETs.  A bridge output signal is low pass filtered and differentially amplified to produce a phase detector output signal.  The phase detector output signal can be used directly to control the frequency of a voltage controlled oscillator which produces the higher frequency signal.                             - i -
Patent CA-1313519-C (CA)
Title: Self-closing valve for sanitary installations
Inventor: HART THOMAS G
IPC: E03D3/04
Filed: 1989-01-16
Granted: 1993-02-09
Abstract: ABSTRACT    A self-closing valve, having means to discharge a predetermined volume of water for each cycle of operation, is disclosed.  The valve includes the arrangement of timing means which determines the elapsed time for its operational cycle, a one-way valve means to expel air from the metering chamber during the actuating cycle of the valve, and air metering means which replaces air entering the mixing chamber at a constant uniform rate, all of which cooperate with the valving means to discharge a predetermined volume of water.
Patent CA-1337189-C (CA)
Title: Electrical conductor, in particular suitable for  use as an insoluble anode in electrowinning  processes, and in electrochemical processes in  general, and process for producing it
Inventor: OLPER MARCO
IPC: C25C7/02
Filed: 1989-02-09
Granted: 1995-10-03
Abstract: The invention describes a process for manufacturing an electrical conductor by: (a) inserting a copper bar inside a tantalum, titanium or niobium tube, wherein the thickness of the tube is substantially less than the diameter of the copper bar; (b) inserting the tube containing the copper bar inside a copper tube; (c) drawing the product of step (b) until the diameter thereof is reduced and a corresponding three-metal wire is obtained, which has a predetermined diameter, and is composed of an inner copper core coated by a thinner layer of tantalum, titanium or niobium, which layer is in its turn clad by an outer copper layer; and (d) removing the outer copper layer by any suitable method, e.g., by dipping in a suitable copper solvent, which is chemically inert towards the tantalum, titanium or niobium, to obtain a bimetallic wire composed of an inner copper core coated by an outer, thinner layer of tantalum, titanium or niobium.  The process overcomes prior art difficulties associated with the softness of, e.g., tantalum in manufacturing such bimetallic electrodes.
Patent CA-1275998-C (CA)
Inventor: WEDER DONALD E
IPC: D01G29/00
Filed: 1989-02-15
Granted: 1990-11-06
Abstract: APPARATUS AND METHOD FOR PRODUCING WEIGHED CHARGES   OF LOOSELY AGGREGATED FILAMENTARY MATERIAL FROM         COMPACTED BALES OF THE MATERIAL         Abstract of the Disclosure Bales of filamentary material are separated into weighed charges of the material by disintegrating the bales in a rotating drum to produce tufts that are passed to a picking chamber wherein a toothed roll strips individual filaments from a supply roll formed from the tufts and passing the filaments to scales upon which the charges are accumulated.  Each time a charge is accumulated on a scale, air is blown across the scale to discharge the scale.  The charges are delivered to a magazine having a plurality of vertically stacked chambers, each chamber underlain by a moveable gate, through which the charges are passed sequen-tially to be discharged at a fixed schedule from the lower-most chamber.  Spikes mounted on the interior of the drum are shaped to loosen portions of bales entering the drum, tear tufts from each portions, and finally deposit the tufts into an air stream passing through the drum to expel the tufts.  Between the drum and the picking chamber, the tufts are treated with an anti-static compound in a chamber through which the tufts fall while a mist of the compound is injected into the chamber.  Above the picking chamber. the tufts enter a deflection tower and are deflected to one side or the other of the picking chamber to concentrate the supply roll at one side of the picking chamber and filaments to each of two scales are drawn from opposite sides of the picking chamber.
Patent CA-1312089-C (CA)
Title: Ion exchange recovery of l-lysine
Inventor: JAFFARI MARK D
IPC: C07C229/26
Filed: 1989-03-06
Granted: 1992-12-29
Abstract: ION EXCHANGE RECOVERY OF L-LYSINE        Abstract L-lysine is recovered using an ion exchange resin.  A liquid solution containing L-lysine and possibly impurities is contacted with the resin and is then soaked in elutant for at least about 15 minutes.  The elution of L-Lysine from the resin is then continued.
Patent CA-1337059-C (CA)
Inventor: MATSUNAMI HIROSHI
IPC: C25C3/04
Filed: 1989-03-29
Granted: 1995-09-19
Abstract: An electrolytic cell for recovery of metal comprising a first partition wall provided with partition openings situated beneath the level of an electrobath and disposed between a dissociated metal recovery chamber and an electrolytic chamber having an anode and a cathode and a second partition wall adapted to constitute an intermediate chamber between the first and second partition walls for recovery of dissociated C12 gas; and also the arrangement of bipolar electrodes in the electrolytic cell and the shape of a control plate for preventing the deposition of sludge.