baber/WOPTO huggingface dataset:
Patent CA-2000665-C (CA)
Title: Procede et dispositif de diagraphie en puits de production non eruptif
Inventor: LESSI JACQUES
IPC: E21B47/10
Filed: 1989-10-13
Granted: 1999-12-28
Abstract: La présente invention concerne un procédé et un dispositif de diagraphie en puits de production non éruptif. Le procédé se caractérise en ce que l'on active le puits pour provoquer la production d'effluents, de part et d'autre de premiers moyens de mesure et en ce que l'on traite par lesdits moyens de mesure une partie au moins des effluents provenant de l'amont de l'écoulement, relativement auxdits moyens de mesure.
Patent CA-2001842-C (CA)
Title: Cyclohexone oxime ethers, their preparation and their use as herbicides
Inventor: ALBRECHT HARREUS
IPC: C07D309/28
Filed: 1989-10-31
Granted: 2000-04-25
Abstract: Cyclohexenone oxime ethers of the general formula I      where R1 is C1-C6-alkyl, A is substituted or unsubstituted C4-alkylene or C4-alkenylene, X is vitro, cyano, halogen, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-haloalkyl, C1-C4-haloalkoxy, carboxyl, C1-C4-alkoxycarbonyl, substituted or unsubstituted benzyloxycarbonyl and/or phenyl, n is from 0 to 3 or from 1 to 5 when x is halogen, R2 is C1-C4-alkoxy-C1-C6-alkyl or C1-C4-alkylthio-C1-C6-alkyl, substituted or unsubstituted C3-C7-cycloalkyl or C5-C7-cycloalkenyl, a substituted or unsubstituted 5-membered saturated heterocyclic radical which contains one or two oxygen and/or sulfur atoms as heteroatoms, a substituted or unsubstituted 6- or 7-membered heterocyclic radical which contains one or two oxygen and/or sulfur atoms and one or two double bonds, a substituted or unsubstituted 5-membered heteroaromatic radical containing one or two nitrogen atoms and an oxygen or a sulfur atom, substituted or unsubstituted phenyl or pyridyl, and their agriculturally useful salts and esters of C1-C10-carboxylic acids and inorganic acids, methods of manufacturing them, and their use as herbicides.
Patent CA-2005955-C (CA)
Title: Synthetic hiv-like peptides, their compositions and uses
Inventor: FORMOSO CARL
IPC: C07K19/00
Filed: 1989-12-19
Granted: 2000-10-24
Abstract: Highly immunoreactive regions of gp41 of HIV-1, gp32 of HIV-2 and p24 of HIV-1 were identified using synthetic peptides. Superior immunoassay performance is obtained with these peptides linked to carrier proteins as compared to use of the free peptides. Additional natural and unnatural variants of these reactive regions to define a set of peptides that, as cysteine-linked peptide-protein conjugates, provide optimal immunoassay performance including high immunoreactivity with HIV antibody positive samples, low reactivity with negative samples, high discrimination between positives and negatives, and high specificity. These peptide conjugates further permit simultaneous detection of HIV-1 and HIV-2 antibodies, and make possible rapid and simple test formats that require no instrumentation for detection of these antibodies.
Patent CA-2008309-C (CA)
Inventor: RANDOLPH GLENN EDGAR
IPC: B65H19/22
Filed: 1990-01-23
Granted: 2000-05-30
Abstract: A core holder for a winding apparatus for winding webs of material in the paper, printing, and textile industries, including a rotatable core-receiving spindle or mandrel, and a segmented friction core holder, expandable outwardly at selected paints, by which the core is tightly gripped when the mandrel is turning, and which readily releases its grip on the mandrel upon a simple manual maneuver by the operator, and is readily removable with little force. The pore holder assembly ie round, but the mandrel-receiving hole has segmented arcs which are not concentric with the outer surface of the core holder, creating steps which limit the movement of the segments about the mandrel.
Patent CA-2012401-C (CA)
Title: Focus-error detection using prism-enhanced spot size monitoring
Inventor: DEWEY ANTHONY G
IPC: G11B7/13
Filed: 1990-03-16
Granted: 1994-05-10
Abstract: An apparatus and method is described for detecting focus errors in an optical head by positioning a prism in the optical path of a return light beam reflected from an optical recording medium.  The prism reduces the beam in one dimension by a factor of M and concurrently increases the divergence/convergence angle associated with a focus-error of the beam by a factor of M in said dimension, thereby desirably enhancing the focus error signal by a factor of M2.  A focus error is detected by a segmented photodetector having inner and outer photosensitive regions.  The photodetector generates an electrical signal indicative of the focus error from the difference in light intensities at the inner and outer regions.  The photodetector preferably is segmented in such manner as to also provide a track error signal.
Patent CA-2012417-C (CA)
Title: Stainless steel sheet for exterior building constituent and method of making the same
Inventor: KINOSHITA NOBORU
IPC: C21D8/02
Filed: 1990-03-16
Granted: 1998-07-21
Abstract: A sheet metal made from a ferritic stainless steel alloy which has an improved corrosion resistivity and is suitable for use in manufacturing exterior building material, in particular, roofing material, by means of forming process such as roll-forming, without formation of pocket wave.  The steel alloy comprises 10-32 wt% of Cr and 0.005-0.1 wt%, in total, of C and N, the balance being Fe and unavoidable impurities.  The sheet metal has been processed to present a mechanical property that, when tested in a tensile test conducted for a test piece sampled in the widthwise direction of cold-rolling and measured at the elastic limit reached in the test, a strain ratio is equal to or greater than 2.5.    The method of making the sheet metal comprises the steps of: cold rolling a steel slab into a sheet metal, subjecting the thus obtained sheet metal to final annealing, subjecting the sheet metal to skin-pass rolling, and, subjecting the resulting sheet metal to aging process at a temperature of 200-550°C for a time period of more than 5 seconds and less than 48 hours.
Patent CA-2019876-C (CA)
Inventor: PELLEREAU BERNARD
IPC: C08L23/06
Filed: 1990-06-26
Granted: 1999-10-26
Abstract: At least one layer of a mono- or multilayered, bioriented film contains as film-forming polymers (A) from 75 to 100 percent of a linear ethylene/alpha-olefin copolymer having a density of from 0.890 g/cm3 to 0.930 g/cm3 and (B) from 25 to 0 percent of a high density linear polyethylene having a density of from 0.935 g/cm3 to 0.960 g/cm3. All percentages are based on the total weight of (A) and (B).      The total of the film-forming polymers (A) and (B) has a single melting point as determined by differential scanning calorimetry.      The bioriented film is produced by biorienting a flat film in at least two steps first in one direction and then in the other direction. The bioriented film is useful in a process for packaging an article wherein the film is wrapped around the article, heat-shrunk and sealed.
Patent CA-2020744-C (CA)
Title: Method and apparatus for the collection of reduced gases
Inventor: KLUSMAN RONALD W
IPC: G01N1/22
Filed: 1990-07-06
Granted: 1994-11-15
Abstract: A method of collecting reduced gases from the soil, water and outdoor and indoor environments but primarily for purposes of mineral, geothermal and petroleum exploration.  The method is practised by isolating a quantity of oxidizing liquid in a container which is constructed to permit selective gaseous communication with an outside environment, then situating the container within a medium containing the gases to be collected and within an airspace contiguous to the medium, then selectively opening  the  container  to  gaseous  communication  with  the environment and collecting in the container the reduced gases present in the environment, oxidizing the collected gases in the oxidizing liquid and storing the oxidized gases in aqueous form.
Patent CA-2021692-C (CA)
Title: Reactive bed plasma air purification
Inventor: MOORE ROBERT R
IPC: B01J19/08
Filed: 1990-07-20
Granted: 1999-08-03
Abstract: The Reactive Bed Plasma is a novel air purification and material processing device which can efficiently treat both toxic chemicals and hazardous aerosols. The Reactive Bed Plasma device embodies an active alternating current discharge plasma permeating a dielectric packed bed.
Patent CA-2033172-C (CA)
Inventor: MERALDI JEAN-PAUL
IPC: D01F6/60
Filed: 1990-06-27
Granted: 2001-02-06
Abstract: PCT No. PCT/CH90/00155 Sec. 371 Date Feb. 26, 1991 Sec. 102(e) Date Feb. 26, 1991 PCT Filed Jun. 27, 1990 PCT Pub. No. WO91/00381 PCT Pub. Date Jan. 10, 1991.An aramid monofilament (20), characterized by the fact that it has the following relationships: 1.7</=Ti</=260; 40</=D</=480; T>/=170-D/3; Mi>/=2000, Ti being the linear density in tex, D being the diameter in  mu m, T being the tenacity in cN/tex, and Mi being the initial modulus in cN/tex for this monofilament. A method of obtaining said monofilament (20) in which a solution (2) of aromatic polyamide(s) is extruded in a spinneret (9), the jet is drawn into a non-coagulating layer of fluid (13), and the drawn liquid vein is introduced into a coagulating medium (19). Assemblies of such monofilaments. Articles reinforced by these monofilaments or these assemblies, such articles being for instance tires.
Patent CA-2036312-C (CA)
Title: Nail chips arresting devices for nail clippers
Inventor: CHANG WILLIAM
IPC: A45D29/02
Filed: 1991-02-14
Granted: 1997-12-09
Abstract: A set of pinch jaws are attached to the cutting blades of a nail clipper. The pinch jaws securely hold the cut nail chips in place during manicure or pedicure such that the cut nail chips do not dispel uncontrollably away from the clipper.
Patent CA-2042350-C (CA)
Title: Shroud band for a rotor wheel
Inventor: BORUFKA HANS PETER
IPC: F01D5/22
Filed: 1991-05-10
Granted: 2000-08-15
Abstract: A shroud band for a rotor wheel having integral rotor blades wherein the shroud band has at least one Z-shaped separation gap at the band periphery, the Z-shaped gap having two parallel damping gaps which are axially spaced apart and which are inclined at an angle of from 70° to 90° relative to the axial direction. The damping gaps are narrow and are joined by an inclined wider free gap portion. During rotation, the damping gaps close up and the adjoining surfaces of the band come into frictional engagement whereas the free gap remains open.
Patent CA-2045748-C (CA)
Title: Lamp assembly
Inventor: CHEN SEN HONG
IPC: F21V17/10
Filed: 1991-06-26
Granted: 1998-08-11
Abstract: A lamp assembly, particularly used for a Christmas lamp string, having mainly a shade or shield at a first end, a hood with cover at a second end and an inter-connector joining in-between the shield and the hood and serves to retain a lamp bulb with or without a socket.  The socket is provided with self-contained conductor wires and fastening tab(s), single sided or double sided to be snap-locked by flap(s)  disposed correspondingly on the inter-connector. When the inter-connector takes a bulb without socket, the bulb is inserted directed into the inter-connector where terminals of a pair of conductor wires are spacedly disposed to be electrically contacted with the bulb base tightly inserted.
Patent CA-2045918-C (CA)
Title: Form retentive absorbent pads
Inventor: DAVIS MARTHA
IPC: A61F13/56
Filed: 1991-07-05
Granted: 2001-12-04
Abstract: Form retentive absorbent pads are disclosed which comprise fluid absorbent material and at least one bendable element which can be deformed by the user and which will retain its shape during use. The preferred embodiments, the bendable element provides at least a degree of conformation in the critical central area of the pad, most preferably at least in the longitudinal (y axis) direction. Conformability created in this area allows the user of the pad to mold the pad to the body to maximize comfort and fluid absorption, Preferred embodiments include bendable elements which form winglets which are bent around the edges of the undergarment to hold the pad in place during use.
Patent CA-2047061-C (CA)
Inventor: CAMBERLIN YVES
IPC: C08F12/00
Filed: 1991-07-15
Granted: 1996-10-22
Abstract: Polymères à groupements imides comprenant le produit de réaction entre:  (a) un NN'-bis-imide ou une association de plusieurs imides, (b) une ou plusieurs p-allylanilines encombrées, (c) éventuellement en présence d'un composé (c) choisi parmi les péroxydes organiques, l'azobisisobutyronitrile et un dérivé de l'imidazole, (d) éventuellement en présence d'un composé (d) choisi parmi les vinylpyridines,  la  N-vinylpyrrolidone,  l'isocyanurate d'allyle,  le vinyltétrahydrofuranne et leurs mélanges. L'invention concerne également un procédé de préparation de tels  polymères  et  leurs  utilisations  notamment  pour matériaux composites renforcés et imprégnés.
Patent CA-2047220-C (CA)
Title: Apparatus for generating a comb of optical teeth of different wavelengths
Inventor: SMITH DAVID WILLIAM
IPC: H04B10/43
Filed: 1990-02-26
Granted: 1996-10-01
Abstract: Apparatus for generating of a comb having a large number optical teeth and comprises an optical loop (3) including an optical amplifier (5) a frequency shifter (4) and an optical filter (6). A signal from a laser (9) is partially coupled into the loop by a coupler (7) such that a part of it is output at output port (10). The signal in the loop (the feedback signal) is amplified by the amplifier (5) and frequency shifted by the frequency shifter (4) and is then partially coupled out of the loop by coupler (7). The part coupled out of the loop (the output signal) exits via output port (10). This process is repeated to produce the desired number of output signals exiting via output port (10). The signal from the laser (9) may be continuous or pulsed.
Patent CA-2050362-C (CA)
Title: Photo-sensing device
Inventor: TONAI ICHIRO
IPC: H01L31/10
Filed: 1991-08-30
Granted: 1999-01-05
Abstract: A bottom-incidence type photo-sensing device has a pn junction, as a photo-sensing region, formed by selectively providing a first region of a second conductivity type in a portion of a semiconductive layer of a first conductivity type.  The first region is surrounded by a second region of the second conductivity type formed in the semiconductive layer, and the second region is of the same or larger depth as or than that of the first region.  Even when a light is directed to outside of the photo-sensing region, extra charges generated therein are absorbed by the second region and the flow of the extra charges into the photo-sensing region is prevented.
Patent CA-2051220-C (CA)
Inventor: STRACHAN ROBERT
IPC: B29C47/02
Filed: 1991-09-12
Granted: 1997-11-18
Abstract: Pultruded profiles are manufactured at a die station (8) which is fed with resin via a pump (27). The core of the profile is formed by granular material fed to station (8) from a hopper 10 through the interior of a hollow duct (13) which is essentially vertically disposed, above the station (8), so that the granular material is moYed under the influence of gravity. The exterior surface of duct (13) is profiled and the skin forming materials (9,9A) for the profile are guided by the profiled surface to the die station (8). The skin forming materials ara runs of cloth. The pultruded profile may be tubular or hollow so that it has both an external surface and an internal surface in which case the internal surface incorporates a further resin bonded cloth fed to the interior of the die station over the external surface of a mandrel.
Patent CA-2051741-C (CA)
Title: Method of end to end verification of primary and secondary data base in a process control system
Inventor: MCLAUGHLIN PAUL F
IPC: G06F11/20
Filed: 1991-09-18
Granted: 1998-05-26
Abstract: Data bases of a first and second input output processor (IOP), which are primary and secondary slave IOPs, respectively, are synchronized, and communications by a master controller is made only to the first IOP.   Each IOP is executing the same tasks utilizing their own clocking systems.  A method for periodically verifying that the first and second data base remain synchronized comprises the steps of sending a sync-verify type message to the first IOP.  The second IOP eavesdrops on the communications, and when the second IOP recognizes that the message is addressed to the corresponding primary slave IOP, accepts the message.  Upon detecting the message is of the sync-verify type by each IOP, operations by each IOP are suspended.  A number is generated by each IOP of its own data base, the number being indicative of the contents of the information stored in the data base.          A status request type message is issued by the master controller to the first IOP for the number generated by the first IOP, and a status request type message is issued by the master controller to the second IOP for the number generated by the second IOP.  Upon receipt of the numbers by the master controller, the value of the number generated by the first IOP is compared to the value of the number generated by the second IOP, thereby determining that the information stored in the first and second data bases are the same when the numbers compare.
Patent CA-2053433-C (CA)
Title: Detergent compositions
Inventor: GARVEY MICHAEL JOSEPH
IPC: C11D17/06
Filed: 1991-10-15
Granted: 1997-03-25
Abstract: A product for treating fabrics in the washing machine is in the form of a tablet of compressed particulate bleaching composition comprising a persalt, preferably sodium percarbonate;  a bleach activator having an observed pseudo-first order perhydrolysis rate constant (Kobs) of from 1.5 x 10-4 to 350 x 10-4 sec-1, for example, tetraacetylethylenediamine, glycerol triacetate, sodium benzoyloxy benzene sulphonate or 1-O-octanoyl-2,3-4,6-tetra-O-acetyl glucose;  and optionally detergent ingredients.
Patent CA-2054484-C (CA)
Inventor: OUCHI WATARU
IPC: F28D1/03
Filed: 1991-10-29
Granted: 2003-10-07
Abstract: A tube for heat exchangers is a flat tube which either comprises a pair of plane walls which are spaced a predeter-mined distance from one another, the plane walls respectively having one lateral ends integrally connected to each other by a U-shaped bent portion, the plane walls further having their other lateral ends which abut against to be tightly secured to one another, or alternatively, the flat tube comprises as the plane walls a pair of preformed plates having the abutted and soldered portions at both lateral ends. The tube further comprising one or more curved lugs integral with and protruding inwardly from an inner surface of each plane wall, and the curved lugs respectively having innermost tops so that the innermost tops protruding from one plane wall bear against the inner surface of the other plane wall or against the innermost tops of the other curved lugs protruding from said other plane wall. The tube is thus of an improved pressure resistance despite its minimized height or thickness, and the manufacturing process of the tube involves no difficulty to produce the tubes at a high productivity and lower manufacturing cost.
Patent CA-2055792-C (CA)
Title: Process and apparatus for manufacturing candles
Inventor: BOUCHARD PAUL-ANDRE
IPC: C11C5/00
Filed: 1991-11-18
Granted: 1997-05-13
Abstract: An apparatus and a method for producing pasty paraffin from liquid paraffin comprises the use of an agitator   for   mixing   the   paraffin   during   its solidification within a receptacle.  The viscosity of the paraffin is controlled by the monitoring of the power of a motor driving the agitator.   Also,  an apparatus  is provided for producing candles in bottles from the pasty paraffin produced hereinabove.  The apparatus comprises a filling head which receives  the pasty paraffin  and  a continuous wick.  A device is included for positioning a ferrule on the wick with the filling head being adapted for lowering into the bottle for positioning the ferrule at the bottom thereof and being also adapted to inject pasty paraffin in the bottle for setting the ferrule. The filling head is then retracted slowly from the bottle while injecting further paraffin therein for filling to a selected  level  the  bottle.    While  the  filling  head retracts from the bottle, the continuous wick is made to extend  from  the  bottom  of  the  bottle  centrally  and longitudinally  therein  and,  once  the  filling  head  is fully retracted from the bottle, the continuous wick is cut near or at the top of the bottle, thereby producing a candle in a bottle.
Patent CA-2057031-C (CA)
Inventor: BUSHNELL ANDREW H
IPC: A23L3/32
Filed: 1990-06-11
Granted: 1998-09-22
Abstract: Appareil de traitement à champs pulsés permettant d'appliquer des champs électriques pulsés à des produits alimentaires pompables. Comprend une chambre de traitement à champ électrique (108) dotée d'une première électrode (302) et d'une deuxième électrode (308). Un séparateur à diélectrique solide (318) sépare la première électrode (302) de la deuxième électrode (308) à l'extérieur de la chambre sur un trajet de surface d'une longueur minimale équivalant à au moins deux fois la distance minimale entre la première électrode et la deuxième électrode à l'intérieur de la chambre. Un conduit d'entrée (304) est connecté à la chambre pour y introduire des produits alimentaires pompables et un conduit de sortie (306) y est également connecté pour en évacuer les produits alimentaires pompables après leur passage dans la chambre de traitement à champ électrique. Un générateur d'impulsions à haute tension (112) transmet des impulsions électriques au rythme d'au moins 0,01 impulsion par seconde à la première et à la deuxième électrodes (302, 308) qui sont excitées par les impulsions électriques et produisent un champ électrique d'une intensité d'au moins 25 000 volts par centimètre. Une pompe raccordée au conduit d'entrée fait passer les produits alimentaires pompables à travers la chambre de traitement à champ électrique à une vitesse suffisante pour que tous reçoivent au moins une impulsion électrique pendant leur passage dans la chambre.
Patent CA-2058779-C (CA)
Inventor: WISZ MICHAEL WAYNE
IPC: F25J3/04
Filed: 1992-01-06
Granted: 1996-01-16
Abstract: A crude neon production system wherein a small neon-containing stream is taken from a cryogenic air separation plant and processed in a neon column and in a non-cryogenic pressure swing adsorption system to produce crude neon and wherein tail gas from the pressure swing adsorption is recycled back into the air separation plant.
Patent CA-2061935-C (CA)
Title: Cadmium free bug lamp
Inventor: REISMAN JULIANA PINKASOVICH
IPC: H01J61/38
Filed: 1992-02-27
Granted: 2002-07-02
Abstract: A cadmium free bug lamp which emits a yellow color when energized and which has very low emission in the range of from 310-380 nm employs a coating wherein the yellow emitting pigment is a rutile TiO2 containing minor amounts of antimony and chromium in the rutile crystal lattice.
Patent CA-2064440-C (CA)
Title: Electrostatic precipitator
Inventor: HARA KEIICHI
IPC: B03C3/76
Filed: 1992-03-30
Granted: 1998-09-01
Abstract: An electrostatic precipitator composed of a discharge section positioned in a casing for passage therethrough of gas to be treated containing unwanted materials such as dust and miscellaneous bacteria from a gas feeding duct to a gas exhaust duct and arranged across the flow path of the gas to be treated; dust collecting sections each having a gas permeable configuration installed parallel to each other and spaced at a distance to the front and to the rear of said discharge section; a high voltage application unit for said discharge section; a dust collecting chamber provided at a lower part of said dust collecting sections; said discharge section, said dust collecting sections, said high voltage application unit and said dust collecting chamber being provided in a frame to form an assembly; and a mounting flange provided on the peripheral surface of said frame, whereby said precipitator may be installed singly or in a row of said precipitators.