baber/WOPTO huggingface dataset:
Patent CA-2001631-A1 (CA)
Title: Abrasive product having binder comprising and aminoplast resin
Inventor: LARSON ERIC G
IPC: B24D3/28
Filed: 1989-10-27
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to abrasive products having a resinous binder which holds and supports abrasive grains on a backing sheet or in a fibrous sheet. Generally, thermally curable binders provide coated abrasives having excellent properties, e.g., heat resistance.  In order to obtain the proper coating viscosities, solvent is commonly added to these binders. When polyester backings are used, curing temperature is limited to about 130°C, resulting in long cure times.  The long cure time along with solvent removal necessitate the use of festoon curing areas.  Disadvantages of festoon curing areas include the formation of defects at the suspension rods, inconsistent cure due to temperature variations in the ovens, sagging of the binder, wrinkling of flexible webs, and shifting of abrasive grains. Although radiation curable resins solve the problems associated with thermally curable resins, with respect to festoon ovens, radiation curable resins are generally more expensive than thermally curable resins.          This invention provides an abrasive product comprising abrasive grains bonded together or bonded to at least one major surface of a backing sheet, by a binder formed from a precursor comprising an aminoplast resin having on average at least 1.1 pendant .alpha.,.beta.-unsaturated carbonyl groups per molecule.  The binder is formed by curing the precursor at the .alpha.,.beta.-unsaturated site of the carbonyl group, by radiation energy or by heat, in the presence of an appropriate initiator system.  The aminoplast resin can also contain pendant amino or hydroxy functional qroups, which allow polymerization with condensation curable resins, such as phenolic, melamine, urea, urethane, and furfural resins.  Polymerization at the unsaturated site of .alpha.,.beta.-unsaturated carbonyl group can be effected either by radiation energy or by heat, and curing at the sites of the amino or hydroxy functional group can be subsequently effected by heat.
Patent CA-2003101-A1 (CA)
Title: Clam shell armrest
Inventor: REEDER RYAN A
IPC: A47C1/03
Filed: 1989-11-16
Abstract: Abstract of the Disclosure A chair having a seat, an adjustable back, and pivotable armrests.  The armrests are pivotally mounted such that a front portion of the armrests may be pivoted in a horizontal plane toward a person seated in the chair.  A locking lever is provided such that the rotation of the lever will lock the armrest at a desired position in its pivotal movement.
Patent CA-2006755-A1 (CA)
Title: A method for safening gramineous crops against pyridine imidazolinone herbicides
Inventor: BIRK JEFFREY H
IPC: A01N43/50
Filed: 1989-12-28
Abstract: 31,004 A METHOD FOR SAFENING GRAMINEOUS CROPS AGAINST           PYRIDINE IMIDAZOLINONE HERBICIDES                       ABSTRACT OF THE DISCLOSURE                The present invention provides a method for protecting a gramineous crop from injury caused by a pyridine imidazolinone herbicidal compound by applying to the crop a chemical safener in a non-phytotoxic antidotal amount.
Patent CA-2008424-A1 (CA)
Title: Resource allocation arrangement
Inventor: DUFFANY JEFFREY L
IPC: G06Q10/06
Filed: 1990-01-24
Abstract: A method for allocating resource use to a process having a plurality of tasks in which a set of signals identifying the interferences in resource use among the plurality of tasks is generated and a signal representing an initial non-interfering allocation is produced. The allocation signal is iteratively improved by 1) determining the correlations among the identified interferences, 2) comparing the determined correlations to prescribed criteria, 3) modifying the allocation signal in accordance with the determined correlations, and 4) reforming the interference signal set responsive to the determined correlations, When the determined correlations meet the prescribed criteria in the correlation determination, the correspondingallocation signal is selected as the optimum non-interfering allocation.
Patent CA-2008701-A1 (CA)
Title: Fungicides
Inventor: CLOUGH JOHN M
IPC: A01N31/08
Filed: 1990-01-26
Abstract: Compounds having the formula (I):    (see fig. I) in which any two of K, L and M are nitrogen and the other is CE; X and Y are independently hydrogen, halogen, C1-4 alkyl, C3-6 cycloalkyl, C2-4 alkenyl, C2-4 alkynyl, C2-4 alkynyloxy, phenyl, benzyloxy, cyano, isocyano, isothiocyanato, nitro, NR1R2, NR1OR2,N3, NHCOR1, NR1CO2R2, NHCONR1R2, N=CHNR1R2, NHSO2R1, OR1, OCOR1, OSO2R1,   SR1, SOR1, SO2R1, SO2OR1, SO2NR1R2, COR1, CR1=NOR2, CHR1CO2R2, CO2R1, CONR1R2, CSNR1R2, CH3O2C.C:CH.OCH3, 1-(imidazol-1-yl)vinyl, a 5-membered heterocyclic ring containing one, two or three nitrogen heteroatoms, or a 5- or 6-membered heterocyclic ring containing one or two oxygen or sulphur hetero-atoms, optionally a nitrogen heteroatom and optionally one or two oxo or thioxo substituents; or X and Y, when ortho to one another, join to form a 5-or 6-membered aliphatic or aromatic ring optionally containing one or two oxygen, sulphur or nitrogen atoms or one, two or three nitrogen atoms; A, B, D, E, G, U and  V are independently hydrogen, halogen, C1-4 alkyl C1-4 alkoxy, cyano, nitro or trifluoromethyl; and R1 and R2 are independently hydrogen, C1-4 alkyl, C2-4 alkenyl or phenyl; the aliphatic moieties of any of theforegoing being optionally substituted with one or more of halogen, cyano, OR1, SR1, NR1R2, SiR1 3 or OCOR1 and the phenyl moieties of any of the foregoing being optionally substituted with one or more of halogen, C1-4 alkyl, C1-4 alkoxy, nitro or cyano.  The compounds are useful as fungicides.
Patent CA-2011957-A1 (CA)
Title: Device for fastening lining parts to motor vehicles
Inventor: DRAXLMAIER FRITZ SR
IPC: F16B5/12
Filed: 1990-03-12
Abstract: ABSTRACT OF THE DISCLOSURE    A device for releasably fastening lining or covering parts to structural components of a motor vehicle body using conventional support elements in the form of clips.  Within the foamed plastics material, a free space is provided for the head part of the fastening clip, the free space having a border zone which is capable of bearing a load.
Patent CA-2014141-A1 (CA)
Inventor: MATIERE MARCEL
IPC: F16L9/22
Filed: 1990-04-09
Abstract: The conduit has a large transverse cross-section, constituted by the assembly onto an installation surface of a plurality of prefabricated longitudinal elements placed one after another and comprising, in cross-section, a lower base and a roof comprising two lateral edges linked to the base by leak-tight longitudinal joining members. 
<??>According to the invention, the longitudinal joining members are constituted by two parallel metal sectional bars linked rigidly together by at least one bracing part and fixed onto a slab 1 constituting the base of the conduit, and the roof is constituted by at least one thin wall element and is fixed in a leak-proof fashion by its two lateral edges along the two longitudinal sectional bars. 
<??>The invention applies especially to the production of a conduit for conveying a fluid under pressure, for example for water supply, urban heating or pen stocks. 
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Patent CA-2016722-A1 (CA)
Title: Mixing nozzle apparatus and method of use
Inventor: ORAVA JOHN
IPC: B01F13/00
Filed: 1990-05-14
Abstract: ABSTRACT OF THE DISCLOSURE   Generally there is provided a nozzle assembly including an outer cylindrical casing member and an inner cylindrical selection member. Inlets are provided along the casing and corresponding openings are provided in the selection member such that they may be selectively aligned with the casing inlets. The internal portion of the cylindrical selection member functions as a film forming chamber where films are developed on the surface for mixing contact. Programmable pulsing pumps connected to the inlets are sequentially operated to inject constituents into the mixing chamber in the desired order and quantity. Air pressure is periodically injected to clear the chamber of mixed constituents. With this programmable apparatus foam density and reaction time are variable during operation.             .               ;        -
Patent CA-2016905-A1 (CA)
IPC: A61M39/06
Filed: 1990-05-16
Abstract: A device  for  establishing  a fluid-tight  seal  around a rotatable drive shaft has a housing which  is formed with a straight bore through which the drive shaft is positioned.  The bore has a narrow portion, a wide portion and a tapered portion between the narrow and wide portions.  A beveled annular seal is positioned in the wide portion of the bore around the drive shaft with the bevel abutting the side of the tapered portion of the bore.   An actuator is engaged to the housing and is movable to urge the seal against the tapered portion of the bore to constrict the seal around the drive shaft and establish a  fluid-tight seal  between the drive shaft and the annular seal.   The  housing  further  includes an expanded conforming portion.  A flexible seal valve is positioned in the expanded portion  to  receive  the drive shaft.   The seal valve has a deformable  wedge-shaped  portion  terminating  in  a  normally closed slit when the shaft is removed.  The seal valve prevents leakage when the shaft is inserted into or withdrawn from the housing.
Patent CA-2016939-A1 (CA)
Inventor: REYNOLDS MARTIN M
IPC: A23B4/08
Filed: 1990-05-16
Abstract: Scalded, defeathered and eviscerated poultry is exposed to a cryogen atmosphere at a temperature of about -30°F. or below, by moving the poultry for about 5 minutes through an atmosphere created by expanding liquid cryogen to create a blizzard of cryogen snow and vapor. The skin and a part of the meat immediately therebeneath is chilled to form a soft outer crust, and the crusted poultry is equilibrated in a cold zone until the carcass reaches 40°F. or below.         The crust may be created while the carcasses move along an endless belt in a freezer enclosure while fans and liquid cryogen spray nozzles create the blizzard of snow.  The crusted poultry may be sprayed with water during equilibration to preserve an attractive appearance of the outer skin, or alternatively, the crusted poultry may be moved through an ice-water bath.  Evaporative air chilling may also be used to initially lower the temperature of the poultry prior to the formation of the soft outer crust.
Patent CA-2022774-A1 (CA)
Title: Thermoplastic olefins
Inventor: RIFI MAHMOUD R
IPC: C08L23/12
Filed: 1990-08-07
Abstract: THERMOPLASTIC OLEFINS                  Abstract of the Invention A composition useful in the preparation of thermoplastic olefins comprising:             (a) isotactic polypropylene;             (b) a copolymer of ethylene and propylene grafted with a hydrolyzable silane or a terpolymer of ethylene, propylene, and a hydrolyzable silane; and (c) a silanol condensation catalyst.     D-15,963
Patent CA-2023644-A1 (CA)
Title: Device for the comparative analysis of organic samples
Inventor: VALLINI GIORGIO
IPC: G01N21/35
Filed: 1990-08-20
Abstract: Abstract "Device  for  the  comparative  analysis  of   organic samples"     The  subject  matter  of  this invention consists of a device for the comparative analysis of organic samples in order to identify foreign matter significant of the presence of a state of deterioration.        The device claims calls for a  spectrometer  (31)  for near-infrared  radiation  reflectance  analysis,   as-sociated with at least one storage unit (41)  contain-ing the statistical parameters of a spectrum represen-tative  of a sample containing no such foreign matter, defined briefly as "sound", and a calculating, compar-ing and amplifying unit (43),  to compare and  amplify the differences between the spectrum of a sample being tested and said statistical spectrum representative of the "sound" sample. Fig. 5.
Patent CA-2027083-A1 (CA)
Inventor: LEE KUANG-LU
IPC: G11C27/02
Filed: 1990-10-05
Abstract: A  fully  differential  sample  and  hold, switched-capacitor adder circuit is disclosed, where a single-ended and fully differential signals can be added together.   Thus in one single operation,  the adder circuit performs two functions conventionally performed by two separate circuits:  converting the single-ended voltage signal into fully differential: and adding this converted differential signal to another differential signal.   The adder circuit includes an operational amplifier, capacitors and switches for performing the operation.  The circuit is economical when implemented in silicon.
Patent CA-2030535-A1 (CA)
Inventor: MORRIS RICHARD L
IPC: C02F5/08
Filed: 1990-04-03
Abstract: Un premier composant d'une substance fluide est exprimé d'une cartouche (C) pouvant être vidée au moyen d'une presse. Le composant principal s'écoule dans le conduit d'amenée (8) jusqu'au conduit de décharge (11), mettant en rotation deux rotors (31) montés dans la chambre de dosage (9) à l'intérieur du boîtier (1). Des pignons montés sur les arbres (30) des rotors (31) s'engrènent et forment ainsi une pompe à engrenages (24). La pompe à engrenages (24) refoule par un conduit de refoulement un composant à mélanger contenu dans un récipient intégré (18), jusqu'au conduit de décharge (11). Ce chapeau doseur permet de mélanger au moins deux composants dans des proportions extrêmement précises.
Patent CA-2032807-A1 (CA)
Inventor: GRAVES DELBERT B
IPC: B23B41/00
Filed: 1990-12-19
Abstract: ABSTRACT       A method of shortening the width, that is, sizing a mini blind to any specified dimension by an operator having the skill level found in a retail outlet, is disclosed. In addition, a machine for sizing a mini blind to any specified dimension by an operator having the skill level found in a retail outlet is also disclosed.    The method and machine are applicable to mini blinds which require either one or several ladders to be affixed to the blind and hence the operation of one or more drill systems, the number being proportional to the width of the blind.
Patent CA-2034789-A1 (CA)
Title: Connector with a fluid seal
Inventor: MOUISSIE BOB
IPC: H01R13/41
Filed: 1991-01-23
Abstract: Abstract A CONNECTOR WITH A FLUID SEAL             A connector having a male part and a matching female part, both parts are provided with mating faces extending essentially parallel to the plug-in direction and moving along each other when these parts mate with each other. One connector part is provided with one or more radially projecting collars which are sawtooth-shaped in cross-section and extend over the entire periphery of the mating face. The other connector part has a smooth surface extending over the entire periphery of the fitting face so that after the parts are plugged in, the outside edge of each collar rests in sealing fashion on the opposite smooth fitting face. The male part can be a supporting body for the contact elements of the connector and/or a contact element itself. The female part can be the housing of the connector and/or an aperture in the supporting body for receiving a contact element.
Patent CA-2035301-A1 (CA)
Title: Faceted light pipe
Inventor: HATHAWAY KEVIN J
IPC: G02F1/1335
Filed: 1991-01-30
Abstract: FACETED LIGHT PIPE            Abstract of the Disclosure A light pipe used for backlighting liquid crystal displays has a planar front surface and a stairstepped or faceted back surface.  Light is injected from the ends of the light pipe from cold or hot cathode, apertured, fluorescent lamps.  The cold cathode lamps are preferably insulated to raise their operating temperature.  The back surface has a series of planar portions parallel to the front surface connected by facets, which are angled so that the injected light reflects off the facets and through the front surface. A reflector having a planar, highly reflective, highly scattering surface or a sawtoothed or grooved upper surface is located adjacent to and parallel with the light pipe back surface to reflect light escaping from the back surface back through the light pipe to exit the front surface.  The axis of grooves is preferably slightly skewed from the facet axis to reduce moire pattern development.  A low scattering or loss diffuser is located adjacent to and parallel with the light pipe front surface to reduce moire pattern development.  The liquid crystal display is located over the low scattering diffuser.  A separate injector may be located between the lamp and the light pipe to better couple the light into the light pipe.
Patent CA-2037497-A1 (CA)
Title: Container made from polymeric material
Inventor: GERLOWSKI LEONARD E
IPC: B05D7/02
Filed: 1991-03-04
Abstract: A B S T R A C T            CONTAINER MADE FROM POLYMERIC MATERIAL            Containers made from polymeric material comprising:     - a shaped first material layer formed from a linear alternating polyketone polymer having repeating units of the formula -CO-(At) wherein A represents a moiety derived from the came or different ethylenically unsaturated hydrocarbons polymerized through the ethylenic linkage, - a cooperatively shaped second material layer formed by coating a copolymer of vinylidene chloride on at least one side of said first material layer, have good oxygen and water barrier properties, and are suitable for retorting or heating in both convection and microwave ovens without mechanical deterioration.     VMl/T4477FF
Patent CA-2038750-A1 (CA)
Inventor: BIELFELDT FRIEDRICH B
IPC: B27N3/24
Filed: 1991-03-21
Abstract: The present invention relates to a process for correcting misalignment of steel bands circulating about a continuously operating press and to a press adapted for such correction of misalignment.  The press has a fixed press bed and a movable press top and a pair of endless flexible steel bands circulating around the press bed and the press top and defining a press gap between them having a high pressure zone, a medium pressure zone and a low pressure zone.  The press top is flexible, at least in the high pressure zone, the flexing being controlled by piston and cylinder assemblies arranged on opposite longitudinal sides of the press.  The bands pass over driven and deflection rollers on opposite sides of the press gap and at least one of the rollers is adjustable so that its axis of rotation can be moved.  When realignment of one of the steel bands is required, the short stroke piston and cylinder assemblies are operated on one side of the press to reduce pressure on the band at that side, and then the axis of rotation of the adjustable roller is moved to cause the desired realignment.  In this way, stretching and deformation of the band during realignment can be avoided.
Patent CA-2040838-A1 (CA)
Title: Modular conveyor
Inventor: CHAMBERS CURTIS D
IPC: B65G21/02
Filed: 1991-04-19
Abstract: A modular conveyor is defined by a belt-supporting frame (4), leg supports (2) for supporting the frame (4), and a continuous conveyor belt (6) supported and guided by the frame (4) for continuous movement. The modular conveyor is improved by providing the frame (4) with a plurality of modular frame assemblies (16) and connector assemblies (14, 18) for joining the modular frame assemblies (16) end to end to form conveyors of different size and shape wherein the connector assemblies (14, 18) and modular frame assemblies (16) are joined end to end in alternating relationship. The connector assemblies (14, 18) comprise straight connector assemblies (14) for extending the conveyor along a linear path and angular connector assemblies (18) for extending the conveyor along an angular path with respect to a preceding modular frame assembly (16). The angular connector assemblies (18) can be used to extend the conveyor along an upward direction or along a downward direction. Each of the modular frame assemblies (16) comprises at least one frame member (8) with a belt guide channel (124) to guide an edge of the belt (6), at least one cross member (26) attached to the frame member (8) and belt supports (100) on the cross members (26). The modular frame assemblies (16) are preferably made of synthetic plastic resin.
Patent CA-2041936-A1 (CA)
Inventor: HOR AH-MEE
IPC: G03G5/06
Filed: 1991-05-07
Abstract: A photoresponsive imaging member comprised of a supporting substrate, a gamma titanyl phthalocyanine photogenerator layer, and a charge transport layer.
Patent CA-2042450-A1 (CA)
Title: Single horizontal well process for solvent/solute stimulation
Inventor: SANCHEZ JAMES M
IPC: E21B43/25
Filed: 1991-05-13
Abstract: ABSTRACT           A solvent stimulation process whereby a viscosity reducing agent is circulated through a horizontal well via a production string.  Said agent exits the production string and enters an annulus formed by said string and a liner.  Said agent diffuses into the reservoir at a pressure below the reservoir pressure.  As said agent diffuses through the reservoir under the influence of a concentration gradient, it reduces the oil's viscosity and makes it mobile.  Simultaneously, oil of reduced viscosity migrates into the well under a pressure drawdown influence.  A pseudo steady state production rate is achieved when convective movement of the oil of reduced viscosity is exactly counterbalanced by the diffusional rate of the viscosity reducing agent in a stimulated radial zone along said well.          This stimulates a large volume of oil through the extensive surface area of the wellbore thus producing increased volumes of hydrocarbonaceous fluids from the reservoir.
Patent CA-2042997-A1 (CA)
Inventor: CHARBONNEAU PIERRE
IPC: A61L9/16
Filed: 1991-05-22
Abstract: Les systèmes d'air comprimé tels que ceux utilisés dans les cabinets dentaires et les hôpitaux produisent une condensation d'humidité dans le réservoir du complesseur, à cause des variations de pression inhérentes aux départs et arrêtssuccessifs de ce dernier. Cette eau ainsi accumulée dans le réservoir devient unincubateur naturel pour l'infection. De plus, la qualité de l'air à son point d'utilisation (soit dans la bouche du patient) est tributaire de l'atmosphère ambiante où se trouve la prise d'air du complesseur et il n'existe préæntement aucun moyen de contrer cette contamination. La présente invention est un autoclave dynamique à sec qui, par infra-rouge, chauffe l'air comprimé à 200 degrés C, sous une pression de 100 à 150lbs/po2, en le faisant circuler à haute vélocité dans un serpentin de cuivre.Ces actions combinées (température, pression) assurent aux utilisateurs un air comprimé aseptique et un système prévenant toute prolifération bactérienne à l'ensemble du réseau.
Patent CA-2043009-A1 (CA)
Title: Method of improving formation permeability using chlorine dioxide
Inventor: MCDOUGALL LEE A
IPC: C09K8/72
Filed: 1991-05-22
Abstract: Permeability of a subterranean formation is increased by injecting into the formation sufficient amount of chlorine dioxide solution to react with formation clays and silicates. The pH of the Clo2 solution is controlled between 0.01 and 3.2 using preferably a mineral acid and liquid Co2 blended with the aqueous Clo2 solution.
Patent CA-2043761-A1 (CA)
Title: Process for .beta.-hydroxy-.alpha.-amino acids
Inventor: MILLER MARVIN J
IPC: C12P13/08
Filed: 1991-06-03
Abstract: Abstract .beta.-Hydroxy-.alpha.-amino acids are obtained via serine hydroxymethyltransferase catalyzed condensation of aldehydes with glycine.  The predominant product with most aldehydes is the L-erythro diastereomer.  For example, succinic semialdehyde methyl ester is condensed with glycine in the process to provide L-erythro .alpha.-amino-.beta.-hydroxy adipic acid mono methyl ester.