baber/WOPTO huggingface dataset:
Patent CA-2060105-A1 (CA)
Title: Paper coatings
Inventor: COWMAN JOHN S
IPC: D21H17/24
Filed: 1992-01-28
Abstract: Case 150-5436 ABSTRACT                   PAPER COATINGS            A method for reducing the particle size of cellulose in water and/or an organic solvent (preferably water) comprising a) forming a slurry or paste of cellulose material in water, the cellulose material having a dry weight average particle size of 1 to 100 microns (preferably 1 to 20 microns); and b) reducing the average particle size of the cellulose material to 1 to 10 microns (preferably 1 to 3 microns), preferably by milling, to form a carrier;   an additive being optionally added to the water prior to addition of cellulose or to end of operations a) or b) above. The additive when added, is preferably an optical brightener.  The method is useful in the field of paper coatings where it permits more efficient use of additives.
Patent CA-2062553-A1 (CA)
Title: Aluminum alkyls and linear 1-olefins from internal olefins
Inventor: ALLEN ROBERT H
IPC: B01J31/12
Filed: 1992-03-09
Abstract: Linear 1-olefins are prepared from internal olefins by (i) reacting them in the presence of an isomerization catalyst and a tri-lower alkyl aluminum so as to cause the internal olefin to isomerize to 1-olefins which displace the lower alkyl groups to form a trialkyl aluminum compound in which at least one of the alkyl groups is a linear alkyl derived from the 1-olefin, and, thereafter, (ii) reacting the trialkyl aluminum compound with a 1-olefin so as to displace the linear alkyl from the trialkyl aluminum compound, thereby forming a linear 1-olefin product which is substantially free of internal olefins.
Patent CA-2066390-A1 (CA)
Inventor: VELAZQUEZ ALFONSO BRIHUEGA
IPC: B60G3/20
Filed: 1992-04-16
Abstract: An independent front suspension for a vehicle body particularly buses has a longitudinally extending square rubber torque spring which includes a tube axially rotatable within a sheath, a frame assembly fixed to the sheath and a yoke secured to the frame assembly meeting a vertically extending arm at a first joint, an upper control arm at a second joint meets the vertically extending arm, a steerable wheel mounting spindle is also mounted to the vertical arm, rubber torque bushings secure the inner end of the upper control arm to the vehicle body.  The square rubber torque spring is tensioned by lever arms coupled to hexagonal blocks on each end of the central tube through the spring.  When required, the lever arms can be lifted off their hexagonal blocks and rotated axially of the central tube and then replaced on their blocks in the new position.  This allows further spring use when the lever arms have reached the limit in use from fatigue in the spring.  An improved bolt and bushing assembly at the joint between the yoke and the vertical arm allows tightening of the bolt by interaction between the bolt, a nut and a thrust bushing which contacts the vertical arm.  Bearing bushings are received on the bolt which have direct lubricant access thereto from transverse grease nipples mounted in the yoke.  The suspension also includes a double shock absorber mounting arrangement.
Patent CA-2066452-A1 (CA)
Title: Process for the production of alkali metal salts of ethercarboxylic acids
Inventor: NOACK WOLF-ECKART
IPC: C07C59/68
Filed: 1990-08-23
Abstract: Process for the preparation of alkali metal salts of ether-carboxylic acids Abstract A process for the preparation of alkali metal salts of ether-carboxylic acids by oxidation of ether-alcohols in an aqueous phase with oxygen or gases con-taining oxygen at elevated temperatures in the presence of alkali metal hydroxides and noble metal catalysts, in which an aqueous solution, containing an alkali metal hydroxide solution, of the ether-alcohols is brought into contact in a thin layer on a solid carrier or in the form of fine particles with oxygen or the gases containing oxygen as a continuous phase, the concentration of the ether-alcohols in the aqueous phase being in the range from 0.1 to 15% by weight, based on the total weight of the aqueous phase,  enables aqueous  solutions of  the alkali metal salts of the ether-carboxylic acids in high concentrations to be prepared.
Patent CA-2066502-A1 (CA)
Title: Handrail air cushion
Inventor: NURNBERG THOMAS R
IPC: B65G15/60
Filed: 1992-04-21
Abstract: HANDRAIL AIR CUSHION                           ABSTRACT           An  air  supporting  system  is  provided  for  a handrail of a passenger conveyor and includes a plenum.  An air supply provides air flow to the plenum.   A guide is mounted on one side thereof to the plenum.   The guide includes at least one air pocket. A handrail is slidably engaged with the guide.   An orifice through the guide allows air to pass from the enclosed space to the air pocket.  The air in the pocket generates pressure and lift to the handrail  as  it  is driven to decrease  friction between the handrail and the guide and to support the handrail above the guide.
Patent CA-2068084-A1 (CA)
Inventor: LITTLETON FRANCIS J
IPC: B26D7/18
Filed: 1992-05-06
Abstract: An improved device for cutting a single or multiple layer continuous web is equipped with a closed-loop, fan-driven air system to "push" air onto the leading edge of the continuous web and "pull" air from about the knife edges to capture the waste material produced by the removal of blank portions. Chambers in the knife roll assembly direct positive air pressure continually to the leading edge for reliably guiding the web into subsequent machinery. Additional chambers direct suction to the waste material at the cutting operation to restrain the waste material within the knife roll assembly for most of the rotation of the knife assembly and to transport waste material to a disposal system including a cowl, which is maintained at a substantially greater suction.
Patent CA-2069478-A1 (CA)
Title: Gelled aqueous insect bait
Inventor: HAINZE JOHN H
IPC: A01N25/10
Filed: 1990-11-13
Abstract: A gelled, aqueous insect bait is disclosed. The gelled insect bait comprises water, an insecticidally-active ingredient, and an effective amount of carrageenan for causing the water and the insecticidally-active ingredient to form a gel. The carrageenan ingredient attracts insects to the insect bait for bait-ingesting purposes.
Patent CA-2070609-A1 (CA)
Inventor: VAN DIEST JACQUES
IPC: C01G49/10
Filed: 1992-06-05
Abstract: Procédé et installation pour la fabrication de solutions aqueuses de chlorure ferrique Procédé et installation pour la fabrication de solutions aqueuses de chlorure ferrique, dans lesquels on soumet une solution aqueuse d'acide chlorhydrique (6) à une circulation ascendante à travers un lit de fragments d'un minerai de fer oxydé dans un réacteur (1), on recueille du lit une suspension (7) de particules du minerai dans une solution aqueuse de chlorure ferrique, on traite (8, 10) la suspension pour en extraire les particules, on recueille séparément les particules (11, 12) et la solution de chlorure ferrique (14) et on recycle les particules dans la solution aqueuse d'acide chlorhydrique (6). (Figure unique)
Patent CA-2071021-A1 (CA)
Title: Heterocyclic derivatives
Inventor: BRADBURY ROBERT H
IPC: C07D413/14
Filed: 1992-06-11
Abstract: ABSTRACT                  HETEROCYCLIC DERIVATIVES          The invention concerns pharmaceutically useful compounds of the formula I, in which Q, X, Z and Ra have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them.  The novel compounds are of value in treating conditions such as hypertension and congestive heart failure.  The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
Patent CA-2071144-A1 (CA)
Inventor: MEADOWS CLARENCE A
IPC: H01M50/169
Filed: 1992-06-12
Abstract: HEAT SEALED CONTAINER AND COVER            Abstract of the Disclosure Process for heat sealing a thermoplastic cover to a thermoplastic container wherein the cover has a channel formed thereon for receiving a sealing lip on the container walls.  The lip and floor of the channel are melted and then cooled to form a solidified skin of thermoplastic over a molten core. the lip is mated with the channel and the melted portions thereof coalesced with the melt from the floor.  Some of the coalesced melt exudes between the lip and the sides of the channel and solidifies to provide additional bonding.  The produce produced by the process is also claimed.
Patent CA-2072003-A1 (CA)
Title: Metal recovery
Inventor: COWX PETER M
IPC: C22B4/00
Filed: 1990-12-17
Abstract: Zinc is recovered by melting in a furnace a mass containing oxides of zinc and iron, a slag-forming flux material and a carbonaceous material, the content of the carbonaceous material being selected to avoid excessive foaming. The zinc vapour produced is condensed in a condensor (10) having an impeller (20) and a cooling circuit (30).
Patent CA-2072321-A1 (CA)
Title: Television receiver with provisions for spot burn protection and after-glow suppression
Inventor: HEIDEBROEK WOLFGANG
IPC: H04N3/20
Filed: 1992-06-25
Abstract: A television apparatus includes a kinescope having a high voltage supply, a deflection circuit, a cathode driver amplifier and a control circuit for controlling operating modes of the receiver. A first means responsive to a turn-off command signal from the control circuit disables the high voltage supply and initiates turn off of the deflection circuit at a controlled rate. Concurrently, a second means responsive to the turn-off command applies a turn on drive signal to at least one electron gun of said kinescope for discharging high voltage therefrom. Advantageously, during turn-off the high voltage is drained from the kinescope as the displayed raster collapses thus providing benefits such as (1) the safety feature of having a fully discharged kinescope, (2) avoidance of kinescope spot burn and (3) prevention of kinescope after-glow.
Patent CA-2073689-A1 (CA)
Title: Process for preparing controlled release granules
Inventor: TOCKER STANLEY
IPC: A01N25/26
Filed: 1991-01-08
Abstract: Process for preparing controlled release granules of pesticides for direct application consisting essentially of overcoating a granular carrier containing a pesticide and a di- or polyhydroxylated compound or water with a liquid polyisocyanate and a polymerization catalyst optionally at elevated temperatures, resulting in interfacial polymerization to a solid cross-linked polyurethane or polyurea barrier.
Patent CA-2075071-A1 (CA)
Title: Integrated side banding seeding tool
Inventor: WICKSTROM VICTOR A
IPC: A01C7/20
Filed: 1992-07-30
Abstract: ABSTRACT OF THE DISCLOSURE            This invention provides for two replaceable points to be used in the furrowing of the soil and the creation of a seed or fertilizer bed.  These two points attach to a body plate that, in turn, attaches to the seeding unit.  In this way a minimum amount of effort is required to replace worn or broken points. The double point seed unit attaches to the soil contact end of hoe drills, air drills and air seeders for agricultural use.  It allows for the separate placement of seed and fertilizer in one farm operation.  Two separate points act in a knife-like fashion to create two "V"shaped openings in the ground.  The fertilizer placement is offset below and to the side of the seed placement.  The layer of earth between the two products creates maximum separation.          This device may incorporate an air vent apparatus to reduce the air pressure applied to the products being distributed and reduce the spread of the products once they strike the ground.
Patent CA-2077797-A1 (CA)
Title: Verticle section building construction
Inventor: HILMER ELWYN P
IPC: E04B1/18
Filed: 1992-09-09
Abstract: VERTICAL SECTION BUILDING CONSTRUCTION                         Abstract Sections  including  floor(s),  roof  and  sidewalls  are tilted vertically to an upright position in series.  Sections are  made  up  from  floor, roof  and  sidewall  subsections assembled  lying on  their  side,  offering easy access  to install ground floor insulation, finish walls, ceilings and floors before being tilted up in permanent position.  Floor, roof, sidewall and end subsections are fabricated in flat configration for forklift unit stacking, storage and handling.          The  primary application,  permanent  or  temporary,  can be for finished domestic housing or outbuildings, or an unfin-ished shell.  A special sequence fastener allows the first assembly of subsections, second, after raised, slides section to close the vertical interface, fastens sections together and anchors building to a foundation sill.   Interrupted wall and roof offset construction allows daylight and side entrance  access  for  good  traffic  circulation and avoids the "tunnel" house.
Patent CA-2078291-A1 (CA)
Inventor: LANGAN JOSEPH W
IPC: G09F3/10
Filed: 1992-09-15
Abstract: A window sticker for pricing and fuel economy information about a motor vehicle can be readily positioned and repositioned on a motor vehicle window, and finally removed from the window without leaving an adhesive residue, and in integral form so that it serves as a customer receipt. A continuous web of coated hydrophobic bond paper, or printable plastic, is moved in a first direction to a press where fired indicia, including fuel economy and price related word indicia, is applied to a first face of the web, and patterns of repositional adhesive are applied to the first face adjacent edges of the web elongated in the first direction. The repositional adhesive patterns are covered by release material strips to protect them. Application of the adhesive and protective~strips may be accomplished simultaneously using tip-on or blow-on techniques with double faced adhesive label stock. Variable indicia is printed on the first face using a laser printer, including numerical indicia corresponding to and adjacent the fuel economy and price fixed word indicia. The individual stickers are burst from the continuous web, and if they contain marginal portions with tractor feed openings, the marginal portions are cut off.
Patent CA-2078366-A1 (CA)
Title: Polyethylene blends
Inventor: MARTIN JOEL L
IPC: C08L23/06
Filed: 1992-09-16
Abstract: 32848CA Abstract of the Disclosure A composition of matter comprising: (a) 5 to 40 weight percent inclusive of a low molecular weight ethylene resin made using a titanium catalyst system said resin having a density greater than 0.955 grams per cubic centimeter, a melt index greater than 25 grams per 10 minutes, and a heterogeneity index between 2 and 8 inclusive; and (b) 60 to 95 weight percent inclusive of a high molecular weight ethylene copolymer resin made using a chromium catalyst system said resin having a density of at least 0.93 grams per cubic centimeter, a high load melt index between 1.5 and 15 grams per 10 minutes, and a heterogeneity index between 6 and 100 inclusive; wherein said composition of matter has a melt index greater than 0.05 grams per 10 minutes.
Patent CA-2078467-A1 (CA)
Inventor: CZERNICHOW JEAN
IPC: E21B47/01
Filed: 1992-09-17
Abstract: : Dans un puits devant être équipé pour la production d'un gisement souterrain, on descend un tube de cuvelage ou casing comportant un ensemble de sections tubulaires raccordées successivement les unes aux autres au moyen de raccords tubulaires dont certains au moins sont modifiés, et on le cimente une fois mis en place dans le puits. Ces raccords spéciaux comportent des logements pour un ou plusieurs capteurs et d'autres éventuellement pour des circuits électroniques d'acquisition ou de transmission. Les différents raccords du dispositif sont interconnectés entre eux par des câbles et avec une installation de surface par un câble multi-lignes pour l'alimentation électrique des modules électroniques et la transmission des données acquises. Cet agencement permet un pré-câblage des différents raccords, ce qui simplifie la mise en place du dispositif durant les manoeuvres d'équipement des puits. Application à la surveillance de puits de production pétroliers par exemple.
Patent CA-2080489-A1 (CA)
Inventor: MOHAJER REZA S
IPC: A61B10/00
Filed: 1991-04-22
Abstract: 2080489 9116004 PCTABS00007 A method of and device for obtaining simultaneous samples of exo and endocervical cells. The device includes an elongated handle portion (12) having a free end (14) and a row of flags (16) are disposed proximate the end opposite the free end. The flags are rectangular in cross section and are disposed at an acute angle with respect to the handle portion. A substantially longer, relatively rigid filament (20) is disposed on the handle portion proximate the row of the flags at a point approximately diametrically opposite thereto. The filament serves as a stop when the device is inserted into the cervical os, and also scrapes the exocervical wall when the device is rotated 360·. Rotation of the device also causes the row of flags to engage the surface of the endocervix.  When the device is removed, two separated cell samples are obtained.
Patent CA-2081966-A1 (CA)
Title: Process for making light hydrocarbonaceous liquids in a delayed coker
Inventor: PASPEK STEPHEN C
IPC: C10G50/00
Filed: 1992-11-02
Abstract: Title:  PROCESS FOR MAKING LIGHT HYDROCARBONACEOUS         LIQUIDS IN A DELAYED COKER     Abstract of the Disclosure This invention relates to a process for making a light hydrocarbon-aceous liquid in a delayed coker, said delayed coker including at least one cokedrum, the process comprising: (A) providing a hydrocarbonaceous feed for said coke drum and heating said feed to a temperature in the range of about 800°F to about 1200°F to provide an intermediate product; and (B) introducing said intermediate product into said coke drum, operating said coke drum for a sufficient period of time to convert said intermediate product to a final product comprising said light liquid and coke, and separating said light liquid from said coke; step (A) being conducted in combination with either step (A)(i) or step (A)(ii);                  . step (A)(i) comprising maintaining said feed during step (A) in an enclosed space in the absence of externally supplied water or hydrogen and subjecting said feed to a pressure that is at least about 500 psig and is sufficient to maintain the specific gravity of the contents of said enclosed space at a level of at least about 0.05 for an effective period of time to convert said feed to said intermediate product, said intermediate product containing fractions having a lower boiling point than the initial boiling point of said feed and/or a higher boiling point than the final boiling point of said feed, then reducing the pressure on said intermediate product to a pressure below about 500 psig prior to step (B);     step (A)(ii) comprising contacting said intermediate product from step (A) prior to and/or during step (B) with at least one stripping material and dissolving at least part of said intermediate product in said stripping material, said stripping material having been preheated to a temperature of at least about900° and in excess of the temperature to which said feed is heated during step (A), said stripping material being in a gaseous state at said preheated tempera-ture and atmospheric pressure.
Patent CA-2082661-A1 (CA)
Title: Thermally stable polyvinyl chloride resin
Inventor: POURAHMADY NASER
IPC: C08F8/26
Filed: 1991-05-10
Abstract: Polyvinyl halide resin absent allylic halide is disclosed.  Another polyvinyl halide resin absent allylic halide, allylic branching and unsaturation is also disclosed. The compositions of this invention are prepared by contacting any polyvinyl halide resin with a hydrogen-substituting compound that has a selective affinity for the allylic chlorines.
Patent CA-2084847-A1 (CA)
Title: Biocide composition and use
Inventor: PAYNE JOHN D
IPC: C09K23/32
Filed: 1992-12-08
Abstract: ABSTRACT                     BIOCIDE COMPOSITION AND USE A stable liquid dispersion in an non-polar organic solvent containing an alkylsulphonylhalopyridine and a dispersing agent which is the reaction product of a hydroxyalkylcarboxylic acid and an amine or salt thereof.  The alkylsulphonylhalopyridine may be 2,3,5,6-tetrachloro-4-(methylsulphenyl)pyridine and the hydroxycarboxylic acid may be poly(12-hydroxystearic acid) and the amine may be either dimethylamino propylamine or polyethyleneimine.  The solvent may be white spirit or an ester or vegetable oil which is a plasticiser for PVC.
Patent CA-2084931-A1 (CA)
Title: Vinegar production
Inventor: FLEURY KURT
IPC: C12J1/10
Filed: 1992-12-09
Abstract: Title:        Vinegar production Inventors:    Kurt FLEURY               Vladimir KALINA Jean-Jacques ZELL     Abstract:         A process for the production of vinegar by fermentation, in which a must is made to trickle downwards through a bed of supports colonized by Gluconobacter, the bed being divided up into several layers alternating with one or more perforated horizontal heat exchangers.            Fig. 1
Patent CA-2085393-A1 (CA)
Title: Metering of two-phase fluids using flow homogenizing devices and chemicals
Inventor: GRISTON SUZANNE
IPC: E21B47/10
Filed: 1992-12-15
Abstract: ABSTRACT OF THE DISCLOSURE   A two-phase fluid is metered by injecting a surfactant into the two-phase fluid, homogenizing the fluid and surfactant with either a porous medium or an orifice plate to form a pseudo-single phase fluid, and metering the pseudo-single phase fluid. In one embodiment, both the injection of surfactant and the homogenization with either a porous medium or an orifice plate occur within one foot of where the pseudo-single phase fluid is metered. In another embodiment, the surfactant is injected at a wellhead and the metering occurs downhole.
Patent CA-2086660-A1 (CA)
Inventor: MOSIOR DONALD J
IPC: A61B19/02
Filed: 1993-01-04
Abstract: A secure container system comprising a first container with a  second  container  mounted  thereon,  the  containers  having adjacent sides that are complementary to one another.  The first container includes two pairs of spaced channels and the second container includes opposite flanges which engage the channels for mounting the second container on the first.  The first container has a door which, when closed,  includes an extended portion comprising a stop for selectively preventing lateral movement of the second container relative to the first container when the second container is mounted in only one of the two pairs of spaced channels.  The door also includes a pair of detents for temporarily holding the second container relative to the first container when the second container is mounted in a second of the two pairs of spaced channels.
Patent CA-2087288-A1 (CA)
Title: Magneto-optical recording medium and manufacturing method thereof
Inventor: NAKAYAMA JUNICHIRO
IPC: G11B11/105
Filed: 1993-01-14
Abstract: A magneto-optical recording medium has a recording layer  including  at  least  two  magnetic  layers.   The magneto-optical recording medium satisfies a condition of ¦A1.K1 - A2.K2 ¦ < 2.0 (erg2/cm4)  wherein A1, K1, A2, and K2 respectively represent an exchange constant of a first magnetic layer, a perpendicular magnetic anisotropy of a first magnetic layer,  an exchange constant of a second magnetic layer, and a perpendicular magnetic anisotropy of a second magnetic layer.  First and Second magnetic layers are made of TbFeCo.