baber/WOPTO huggingface dataset:
Patent CA-2004262-A1 (CA)
Inventor: DIKA MICHAEL
IPC: B65B27/10
Filed: 1989-11-30
Abstract: The stacker comprises a receiving bin adapted to position bolts close to the ground in an orientation that is perpendicular to the direction of advance of the stacker.          The bin has side walls that closely confine the two ends of the bolts.  A reciprocating plunger at the base of the bin biases the bolts rearwardly through an aperture into a stacking bin that trails the receiving bin.  The stacking bin is open at the rear and at the bottom.  Its parallel side walls closely confine the ends of the bolts collecting therein.  The bolts biased rearwardly by the plunger are forced into the base of the stack in the stacking bin.  The combination of the resistance of the ground-engaging stack, the confinement by the side walls,  and the  forced introduction of bolts into the base of the stack, induces a "boiling up" action of the bolts at the front end of the stack whereby they self-align themselves into a parallel state.  When the bins are moved ahead, they leave behind an elongated stack of bolts.
Patent CA-2005377-A1 (CA)
Title: Blue light emitting diode formed in silicon carbide
IPC: H01L33/16
Filed: 1989-12-13
Abstract: The present invention comprises a light emitting diode formed in silicon carbide and that emits visible light having a wavelength of between about 465-470 nanometers, or between about 455-460 nanometers, or between about 424-428 nanometers.  The diode comprises a substrate of alpha silicon carbide having a first conductivity type and a first epitaxial layer of alpha silicon carbide upon the substrate having the same conductivity type as the substrate.  A second epitaxial layer of alpha silicon carbide is upon the first epitaxial layer, has the opposite conductivity type from the first layer, and forms a p-n junction with the first epitaxial layer.  In preferred embodiments, the first and second epitaxial layers have carrier concentrations sufficiently different from one another so that the amount of hole current and electron current that flow across the junction under biased conditions are different from one another and so that the majority of recombination events take place in the desired epitaxial layer.
Patent CA-2005470-A1 (CA)
Inventor: DONG WALTER
IPC: C07C37/84
Filed: 1989-12-14
Abstract: The invention relates to a process for the continuous purification of crude bisphenol which comprises (1) forming a single liquid phase comprising a hot mixture of crude bisphenol and water in a ratio substantially of from 75% to 85% weight of crude bisphenol to 15% to 25% weight water; (2) continuously feeding this mixture together with a stream of warm water to a first crystallization zone at a temperature sufficient to maintain a bisphenol-rich liquid phase, a water-rich phase and a crystalline phase comprising 70% to 95% of the total bisphenol in the mixture; (3) passing the three-phase mixture of bisphenol and water to a second crystallization zone operated at 85 °C to 97 °C until 90% to 99% of the total bisphenol is crystallized; and (4) recovering the purified bisphenol crystals.
Patent CA-2007031-A1 (CA)
Inventor: SUURNAKKI JORMA
IPC: A23L11/00
Filed: 1990-01-05
Abstract: ABSTRACT           The invention relates to a method and apparatus integrated in a feed-production factory for processing and using the seeds of field pea-type leguminous plants.  The seed of a pea-type plant is dehulled in a hulling device, crushed in a crusher, and finely ground in a pregrinder and in a jet mill.  The flour is air separated in air classifiers into two or more fractions so that the starch granules originating from cotyledon cells are substantially included in coarse fractions and the protein granules substantially in fine fractions. For facilitating the fractionation, there is used a predetermined, selected variety of the pea-type leguminous plant.  By effecting the grinding with a jet mill grinding technique it may be economically feasible to reach a sufficiently small particle size without subjecting the product to thermal injuries. The process is integrated as a part of the feed production of a feed factory in a manner that at least some of the flour fractions are administered into a mixed feed being prepared.  The invention includes proteinaceous pea feeds including at least 35% pea protein.
Patent CA-2007313-A1 (CA)
Inventor: OHALA JOHN J
IPC: B44F7/00
Filed: 1990-01-08
Abstract: A visual effect comprising an array of sections (11-20) formed in a surface.   The sections have a facet (24) and a reflective medium (26) is formed on the facets.          The  facets  are  sloped  in  a  predetermined  way  to correspond to sections  (1-10)  in a real or imagined three-dimensional scene  to  create  an  image  that simulates the scene.
Patent CA-2007747-A1 (CA)
IPC: H04Q11/00
Filed: 1990-01-15
Abstract: A semiconductor optical switch and an optical switch array for use in an optical logic circuit, photonic switching, OEIC, etc., wherein a light amplifying means is provided on a bypass waveguide that connects a plurality of optical waveguides, thereby enabling improvement of the light crosstalk and the light propagation loss.  In particular, according to the arrangement of the present invention that a light amplifying means is provided in addition to the deflecting portion, no noise component is amplified and therefore the SN ratio is markedly increased.
Patent CA-2009202-A1 (CA)
Inventor: SCHAD ROBERT D
IPC: B63B59/02
Filed: 1990-02-02
Abstract: A high strength impact resistant hull structure including method of manufacture is disclosed having inner and outer skins wherein the outer skin comprises a plurality of wearstrips keyed to one another and keyed to the inner skin.
Patent CA-2009679-A1 (CA)
Inventor: DESMURS JEAN-ROGER
IPC: C07C68/00
Filed: 1990-02-09
Abstract: Process for the preparation of di-tert-butyl dicarbonate by bringing a tert-alkyl pyrocarbonate into contact with an acid halide in the presence of a complexing agent.
Patent CA-2013223-A1 (CA)
Inventor: TRIMBO SUSAN L
IPC: A23L33/00
Filed: 1990-03-28
Abstract: An enteral diet for patients with pulmonary disease comprising not less than 18% of said calories from a high quality protein source; from about 20 to 50% of said calories from a slowly metabolizable carbohydrate source derived from maltodextrin or other partially hydrolyzed polysaccharides; from about 40-55% calories from a mixture of lipids comprising medium and long chain triglycerides.
Patent CA-2013473-A1 (CA)
Title: Spacer element for handling fluids
Inventor: MOHN JURGEN
IPC: B01D63/00
Filed: 1990-03-30
Abstract: A spacer element for guiding flowing medium, especially for apparatus for separating the medium by  reverse  osmosis  and ultrafiltration,  with a respective filter element being accommodated between each two essentially plate-like spacer elements, about which the medium flows.  The spacer element comprises a plate member having a rim region in which is provided at least one passage for the flowing medium, with the plate member having two oppositely disposed plate-like surfaces, on at least one of which are disposed a plurality of raised bosses that project  from the  surface,  with the filter element resting on the bosses, whereby the filter element is in the form of a diaphragm pad, with the medium flowing on both sides thereof.
Patent CA-2013964-A1 (CA)
Inventor: GIROUX PATRICE
IPC: B05B12/14
Filed: 1990-04-05
Abstract: Installation de projection électrostatique d'un produit liquide tel qu'un produit de revêtement relativement conducteur. Selon l'invention, l'installation comporte au moins un dispositif d'isolation comportant un tronçon de conduit isolant de longueur suffisante pour supporter une tension prédéterminée et un piston de raclage susceptible d'être déplacé dans ce tronçon de conduit pour nettoyer la paroi interne de ce dernier.
Patent CA-2015619-A1 (CA)
Inventor: KARAKELLE MUTLU
IPC: C08L71/02
Filed: 1990-04-27
Abstract: A coating composition for  an  article  surface includes   a  uniform  blend  of   an  elastomeric segmented   hydrophilic   polyetherurethane   and   a hydrophilic polymer,  such  as  polyvinylpyrrolidone. The  invention  includes  a method  for  rendering an article surface  lubricious  which  includes  coating the  composition  onto  the  article  surface  and contacting the coated surface with an aqueous liquid.
Patent CA-2019749-A1 (CA)
Title: [.alpha.-(tert.butyl aminomethyl)-3,4-dichlorobenzyl] thioacetamide, a procedure for its preparation and its uses
Inventor: LAFON LOUIS
IPC: A61P1/14
Filed: 1990-06-25
Abstract: The invention relates to [~-(tert.butyl aminomethyl) -3,4-dichlorobenzyl] thioacetamide of the formula : (see formula I) and its addition salts with pharmaceutically acceptable acids.      These compounds can be used as antidepressants as well as to promote the feed intake.
Patent CA-2021339-A1 (CA)
Inventor: NOZOMI MAMORU
IPC: C09B23/00
Filed: 1990-07-17
Abstract: ABSTRACT      Disclosed herein is an electrophotographic photoreceptor having on a conductive base at least one charge generation layer and at least one charge transfer layer, which comprises a sulfonate ester compound represented by the general formula (I):                                           (1) wherein R1, R2, R3, R4 and R5 are independently hydrogen atom, halogen atom, cyano group, nitro group or alkyl group; R6, R7, R8 and R9 are independently hydrogen atom or halogen atom; and X is cyano group, alkoxycarbonyl group, optionally substituted aryloxycarbonyl group or optionally substituted aryl group, in the charge transfer layer. The electrophotographic photoreceptro according to the present invention has the excellent durability.
Patent CA-2021888-A1 (CA)
Inventor: IZYA KORENBLIT
IPC: F04D29/10
Filed: 1990-07-24
Abstract: A flushing protection arrangement is provided between the static seal and the auxiliary impeller, so that when the pump is not operating the static seal will be protected by a flushing fluid.
Patent CA-2022038-A1 (CA)
Title: Portable anti-theft alarm and locking device for vehicles
Inventor: FULLER KIP L
IPC: B60R25/10
Filed: 1990-07-26
Abstract: PORTABLE ANTI-THEFT ALARM AND LOCKING DEVICE FOR VEHICLES Abstract of the Disclosure: A portable bar is provided which attaches tangentially and locks to a vehicle steering wheel, preferably at the uppermost section of the rim, and extends to where it is fully visible from outside of the vehicle. In the preferred embodiment, the bar is a hollow tube in which a pair of clamping members, one being a fixed section of the tube and the other part hinged thereto, surrounds and is locked about the steering wheel rim. A cavity in the tube protectively encloses, along with anti-saw-through bars, alarm circuitry and the batteries therefor. Light and sound annunciators on the bar and a flashing LED armed-condition indicator are provided. A panic button on the outside of the tube to manually trigger the alarm, and push button selectors enclosed in the tube and accessible only when the device is unlocked to arm and disarm the alarm and to activate the light to serve as a flashlight or emergency flasher, are also provide.
Patent CA-2022495-A1 (CA)
Inventor: IVIE CRAIG R
IPC: E21B10/18
Filed: 1990-08-01
Abstract: A rotary drill bit (10) has fluid discharge nozzles (36A, 36B, 36C) positioned between adjacent pairs of roller cutters (20A, 20B, 20C). A fluid discharge nozzle (36A) provides a stream of drilling fluid (44) toward an adjacent roller cutter (20A) inclined radially outwardly toward the side wall (34) of the bore hole (30) and slanted toward the roller cutter (20A) for first striking the side wall (34), and then sweeping inwardly across the bore hole bottom  (32)  in a flat high velocity stream tangential to bit rotation and beneath the cutting elements  (26)  during cutting engagement of the gage row (28D) with the formation.
Patent CA-2022860-A1 (CA)
Title: Closure with drop down tamper indicating band and related container finish
Inventor: BANICH JOHN N SR
IPC: B65D55/02
Filed: 1990-08-08
Abstract: ABSTRACT OF THE DISCLOSURE           This relates to a closure with a drop down tamper indicating band and a related container finish.      The container  is  provided with  a  neck finish which includes  below  threads  thereof  a  radially outwardly projecting   head   which   carries   a   plurality   of circumferentially  spaced,  vertical  nibs.  The closure is constructed to be rotated relative to the container neck finish during the removal thereof and includes a lower tamper indicating band which is secured to the closure  skirt by a plurality of rupturable bridges.          The band has  formed on the inner surface thereof a plurality   of   circumferentially   spaced,   radially inwardly  projecting,  axial  splines  which  may  be considered  as   arranged   in   pairs   for   receiving therebetween  a  container  nib.  The  circumferential spacing of each pair of splines is greater than the circumferential extent of a nib so that there is a very loose connection between the nibs and the splines which prevent only rotation of the tamper indicating band when  the  closure  is  being  removed  to  open  the container.  When  the  bridges  rupture,   the  tamper indicating  band  is  free  to  drop  down  below  the container neck  finish  and  to  seat on the container shoulder.  The  closure  cannot  be  reapplied  and  the tamper indicating band loosely assembled therewith to give the appearance that the container has not been opened.
Patent CA-2027190-A1 (CA)
Title: Electro-emissive laser stimulated test
Inventor: MELLITZ RICHARD I
IPC: G01R31/302
Filed: 1990-10-09
Abstract: ELECTRO-EMISSIVE LASER STIMULATED TEST     ABSTRACT OF THE DISCLOSURE   A test arrangement for printed wiring boards or the like employs a scanned laser beam which impinges upon a photoemissive grid mounted close to the board under test. The laser beam causes the grid to locally emit electrons which are attracted toward the board due to an electric field between the grid and a conductive plane behind the board. The spacing between the grid and the workpiece is very small so the electron beam is very localized and travels a short distance; there is no need for deflecting the electron beam, because it is the laser beam which is scanned. The charge transferred from the grid to the part under test by electron flow is detected and correlated with the position of the beam to provide an indication of the status of the conductive pattern. Undesired shorts or open circuit conditions among the conductors on the board is determined by comparing the charge transfer as a function of beam position with the desired standard pattern produced by a fault-free board.
Patent CA-2027465-A1 (CA)
Title: Composite wastewater sampler
Inventor: DAWSON BRIAN D
IPC: G01N1/10
Filed: 1990-10-12
Abstract: A composite wastewater sampler includes a flow-through-chamber having an inlet port and an outlet port with a path between them that gradually increases in depth and width and then decreases in width. It is shaped to cause fluid to: (1) flow from the inlet port; (2) drop to a lower level of flow within the flow-through-chamber; (3) gradually adjust in cross-sectional shape to the outlet port; and (4) flow back into a wastewater pipe. A sampling nozzle extends into the flow-through-chamber adjacent to the inlet port and within the path of the downwardly flowing wastewater so that wastewater exiting the port contacts the nozzle and flows downwardly across it.
Patent CA-2029087-A1 (CA)
Title: Composition and method for improving adhesion of coatings to copper surfaces
Inventor: KUKANSKIS PETER E
IPC: C23G1/10
Filed: 1990-10-31
Abstract: COMPOSITION AND METHOD FOR IMPROVING ADHESION OF           COATINGS TO COPPER SURFACES                      ABSTRACT     A composition for cleaning and improving the adhesion characteristics of a copper surface (which is in turn adhered to an underlying substrate)  so as to enable a coating, e.g., of photoresist, to be adhered easily and completely to the copper surface,  the cleaning and adhesion promoting composition consisting essentially of an aqueous solution of  an alkane sulfonic acid,  a surfactant and an oxidizing agent of a type, and present in an amount, sufficient to provide controlled conversion of the copper surface to a substantially clean, micro-roughened surface, without removing the copper surface from the underlying substrate,  so that the adhesion characteristics of the copper surface are substantially increased for  receiving and securely adhering a subsequently applied coating.
Patent CA-2031578-A1 (CA)
Inventor: KAMESWARAN VENKATARAMAN
IPC: A01N43/36
Filed: 1990-12-05
Abstract: There is provided a method of preparation of 2,4,5-tribromopyrrols-3-carbonitrile compounds in a single step from their 2-trihaloacetylpyrrole-4-carbo-nitrile precursors. The 2,4,5-tribromopyrrole-3-carbo-nitrile compounds are useful as molluscicidal agents.
Patent CA-2031979-A1 (CA)
Inventor: KATSURADA MORIHIRO
IPC: G06V30/10
Filed: 1990-12-11
Abstract: Disclosed  is  a  facsimile  device  enabling  high-efficiency data transmission independently of the direction in which an original is drawn into the facsimile device.   The facsimile device includes a scanner for reading the original, an image memory for storing a read image signal, a circuit for detecting the direction of text lines of a read pixel signal, a circuit for determining whether or not the text line direction is close to a longitudinal direction or a lateral direction of arrangement of memory cells in the image memory, a circuit for executing an operation for rotating the image signal by a predetermined angle when a determination is made that the text line direction is closer to the longitudinal direction,  a compression circuit for reading the rotated image signal in the lateral direction of the arrangement of the memory cells, to compress the read image signal, and a transmission circuit for transmitting the compressed signal onto lines.
Patent CA-2036734-A1 (CA)
Inventor: FRIEDMAN ROBERT H
IPC: E21B43/22
Filed: 1991-02-20
Abstract: Wells  penetrating  oil-producing  and  water-producing intervals may be treated in order to reduce the flow rate of water into the well by isolating the water-producing interval and introducing into it a volume of treating fluids sufficient to invade at least six inches into the  water-producing interval.          Cased wells may be treated to plug holes in the casing caused by corrosion or casing breaks by introducing a treating fluid into the  formation  adjacent  to  the  break.    The  treating  fluid comprises a material which can be acid catalyzed in a period of from 1 to 16 hours at formation conditions, preferably a monomer or oligomer of furfuryl alcohol.   The treating fluid contains from 40 to 60 percent furfuryl alcohol and from 40 to 60 percent of an ester,  preferably ethyl acetate or butyl acetate.   The catalyst is preferably orthonitrobenzoic acid or toluene sulfonic acid in a concentration of from   1 to 4 percent by weight, selected to produce a set time at the formation temperature in the range of  from 1 to  16 hours.   The treating fluid also contains an effective amount in the range of .5 to 1.5 percent of a water swelling polymer, preferably a copolymer of starch and synthetic polymer (acrylates or acrylamides) to prevent shrinkage of the furfuryl alcohol on polymerization.
Patent CA-2038104-A1 (CA)
Inventor: REID THOMAS S
IPC: C08G18/50
Filed: 1991-03-12
Abstract: A substantially solvent-free two-part polyurethaneurea composition having excellent adhesion to elastomeric substrates, comprising the reaction product of a macrodiol endcapped with an oligomeric aromatic amine and a polyisocyanate or prepolymer. With selected compositions, curing can be effected in moist conditions, or even under water. The composition provides an excellent sealant or repair for elastomeric/rubberized articles such as waders, etc.
Patent CA-2040266-A1 (CA)
Title: Gravity fed, chain conveyor for grain cart
Inventor: KINZENBAW JON E
IPC: B60P1/38
Filed: 1991-04-11
Abstract: A two-wheeled grain cart adapted for pulling by a tractor includes a downwardly tapered lower hopper section with a discharge aperture and a hydraulically controlled, sliding access door.  A conveyer having a first inlet end and a second discharge end is coupled to an outer side of the grain cart and is movable between a generally horizontal transport/storage position and an upright use position by means of a hydraulic cylinder.  When in the use position, the open inlet end of the conveyer is aligned with and disposed over the hopper discharge aperture for receiving grain under gravity feed and displacing the grain via a chain driven, paddle-type conveyer to its second discharge end for off-loading.  A lower end of the conveyer is coupled via a sprocket drive arrangement to a shaft coupled to a tractor's power take-off (PTO) unit for driving the chain and paddle combination.  A spring-loaded, jaw-type coupler engages as the conveyer is unfolded to the upright position to provide conveyor drive from the tractor's PTO unit.          The conveyor's inlet end is wedged into tight-fitting engagement with the hopper adjacent the discharge aperture to prevent grain loss, while conveyor chain tension is maintained by hydraulic cylinders near its second discharge end.  The conveyer is mounted to the grain cart via a hinge pin and includes a single elongated, rigid, unitary housing for grain transport and conveyor paddle return.
Patent CA-2040610-A1 (CA)
Title: Apparatus for the removal of chloride from reinforced concrete structures
Inventor: BENNETT JOHN E
IPC: C04B41/53
Filed: 1991-04-16
Abstract: APPARATUS FOR THE REMOVAL OF CHLORIDE FROM      REINFORCED CONCRETE STRUCTURES            Abstract The present invention resides in an apparatus for removing chloride ions from a reinforced concrete structure.  The apparatus comprises an integrated anode assembly which includes an anode and an electrolyte, the anode being immersed in the electrolyte.  The integrated anode assembly is flexible and conformable to the surface conguration of the concrete structure to which it is applied.  Means are provided for removably adhering the integrated anode assembly to the concrete structure, conformed to said surface configuration, and for establishing an electric current between said anode and the reinforcement of said concrete structure.
Patent CA-2042263-A1 (CA)
Title: Transparent polycrystalline garnets
Inventor: GRESKOVICH CHARLES D
IPC: C04B35/645
Filed: 1991-05-09
Abstract: RD-20,202 TRANSPARENT POLYCRYSTALLINE GARNETS                  Abstract of the Disclosure Transparent, polycrystalline garnet bodies having desirable properties for use as laser material, luminescent x-ray scintillator materials and other uses are produced by mixing a chloride source solution of the desired cations with a basic ammonium solution to produce a precipitate having a substantially uniform composition which can be further processed to provide the desired transparent body.  This precipitate is separated from the solution, dried, thermally decomposed at a temperature in the range from 700 to 1,000°C, pressed to form a compact, isostatically pressed at up to 60,000 psi to provide a green, unsintered compact having a density in the vicinity of 55% of theoretic density.  That green compact is then sintered in oxygen at a temperature between 1,400 and 1,700°C to produce the desired transparent body.  Alternatively, the compact may be sintered in oxygen at temperatures in the range from about 1,400 to about 1,600°C to a closed pore stage and then hot isostatically pressed at high pressure to provide the desired transparent body.