baber/WOPTO huggingface dataset:
Patent CA-1147050-A (CA)
Title: Light emitting diode and method of making the same
Inventor: YAMANAKA HARUYOSHI
IPC: G02B6/42
Filed: 1980-01-28
Granted: 1983-05-24
Abstract: ABSTRACT           A light-emitting diode having a semiconductor active layer, a semiconductor first clad layer formed on a surface the semiconductor active layer, and a protrusion formed unitarily on a surface of the first clad layer, thereby to complete an input end of a light guide for light coupling therewith. A method of manufacturing this light emitting diode comprising the steps of forming a recess on one face of a semiconductor substrate, forming a semiconductor first clad layer on the abovementioned face of the semiconductor substrate, and selectively etching the substrate from the other face thereof so as to form a through-hole reaching the recess on the one face of the semiconductor substrate, thereby to expose at least a protrusion of the semiconductor first clad layer formed in the recess.
Patent CA-1090668-A (CA)
Inventor: JOHNSON HARLEY D
IPC: F01M11/04
Filed: 1980-01-30
Granted: 1980-12-02
Abstract: ABSTRACT OF THE DISCLOSURE           A plug assembly is provided including an elongated sleeve defining a longitudinal bore therethrough and including structure thereon for at least semi-permanent sealed securement through the drain bore of an oil pan.  The plug assembly further includes a plug member defining an enlarged head and an elongated shank projecting lengthwise outwardly from one side of the head and removably telescopingly receivable in the longitudinal bore through the sleeve.  Seal structure is carried by the shank and establishes a slidable fluid tight seal between the shank and the adjacent surfaces of the sleeve bore.  The head of the plug member and the adjacent end of the sleeve include coacting structure releasably securing the plug member against outward dis-placement relative to the sleeve end and thus lengthwise retraction of the shank and the seal structure from the sleeve bore.
Patent CA-1090034-A (CA)
Inventor: FODOR LAWRENCE M
IPC: C08J3/24
Filed: 1980-01-30
Granted: 1980-11-18
Abstract: BLEND OF RESINOUS RADIAL COPOLYMERS OF A MONOVINYL-SUBSTITUTED AROMATIC COMPOUND AND A CONJUGATED DIENE Abstract of the Disclosure A composition comprising a blend of at least two resinous radial copolymers of a monovinyl-substituted aromatic compound and a conjugated diene, said blend having a heterogeneity index of polymerized monovinyl-substituted aromatic compound blocks within the range of about 2.8 to 3.5. The heterogeneity index is the ratio of weight average to number average molecular weight. Such compositions exhibit high strength and are made by blending at least two resinous radial block copolymers made under different conditions so as to give different lengths of the polymerized monovinyl-substituted aromatic compound blocks. These compositions are particularly useful in applications such as injection molded articles where high impact strength is desirable.
Patent CA-1173991-A (CA)
Inventor: ROEMER FREDERICK D
IPC: A61K6/893
Filed: 1980-02-01
Granted: 1984-09-04
Abstract: Abstract of the Disclosure Compositions hardenable by exposure to heat or elec-tromagnetic radiation are provided by blending from about 0% to about 50% by weight of an uncrosslinked polymer, from about 20% to about 66% of a polymerizable monomer capable of dissolving said polymer, from about 10% to about 70% of a crosslinked polymer in the form of discrete particles having average diameters of from 0.001 micron to about 500 microns and being swellable by said monomer, and from about 0.25% to about 27% of a crosslinking agent for said monomer.  Such compositions exhi-bit superior chemical and physical characteristics when hardened and are suitable in a wide variety of applications as construction media.  In accordance with a preferred form of the invention, a precursor blend is formed from a mixture comprising  (A) from 13 to 52 weight percent of a crosslinked polymer of an ester of a C1 - C6 alkyl acrylic acid and a C1 - C20 alkyl or cycloalkyl alcohol, said crosslinked polymer being in the form of fine particles at least 50% by weight of which have average diameters less than 150 microns;  (8) from 13 to 34 weight percent of an uncrosslinked polymerized ester of a C1 - C6 alkyl acrylic acid and a C1 - C20 alkyl or cyclo-alkyl alcohol having an average molecular weight of from 500,000 to 900,000 g/mole;  (C) from 25 to 55% by weight of a polymerizable monomeric ester of a C1 - C6 alkyl acrylic acid and a C1 - C20 alkyl or cycloalkyl alcohol, which monomeric ester is capable of dissolving said uncrosslinked polymerized ester and of swelling, or interpenetrating, said crosslinked polymer particles; and  (D) from 7% to 22% by weight of a crosslinking agent for said polymerizable monomeric ester.          Such precursor blends, after being aged for a time sufficient to insure that the crosslinked polymer particles have become substantially fully swollen with or interpenetrated by the mix-ture of monomeric ester and crosslinking agent, is especially suitable in the production of prosthetic dental appliances, such as, for example, prosthetic teeth.
Patent CA-1133702-A (CA)
Title: Emulsion-type explosive composition and method  for the preparation thereof
Inventor: OWEN JAMES H II
IPC: C06B47/14
Filed: 1980-04-03
Granted: 1982-10-19
Abstract: TITLE Emulsion-Type Explosive Composition and Method for the Preparation Thereof ABSTRACT OF THE DISCLOSURE Emulsion-type explosives having improved storage stability are formed by combining an aqueous solution of an inorganic oxidizing salt and an oil in the liquid phase with agitation in the presence of a fatty acid, e.g., oleic or stearic acid, and an ammonium or alkali metal hydroxide, and incorporating dispersed gas bubbles or voids in the resulting water-in-oil emulsion.  An emulsifying system including a fatty acid salt is formed in situ.  The product contains the fatty acid salt, fatty acid, and hydroxide in a stabilizing equilibrium which permits the product to retain its explosive properties after storage at temperatures as high as 49°C or more.
Patent CA-1107489-A (CA)
Inventor: BOXER RUBIN
IPC: A44B13/00
Filed: 1980-04-15
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE     Flexible hook-and-pile patches are provided for connecting together clothing items, such as socks, during laundering and storage so that matching items are not inadvertently separated from each other.  The patches are made from a strip which has a flexible backing material, a longitudinal area thereof having pile structures disposed thereon, and a parallel longitudinal area thereof having hook structures disposed thereon.  Each patch is formed by cutting the strip transversely.  The space between the hook area and the pile area on each patch acts as a hinge so that if one area is secured to the clothing item the other area may be folded over to engage the one area and prevent inadvertent catching of the hooks with the clothing fabric.  When two items are to be connected together the hook and pile areas are separated on each item and the hook and pile areas on one item are joined to the pile and hook areas respectively on the other item.
Patent CA-1139269-A (CA)
Inventor: CUSACK LAWRENCE B
IPC: B66F9/10
Filed: 1980-05-09
Granted: 1983-01-11
Abstract: Cusack 2 SIDE LOADING VEHICLE            ABSTRACT OF THE DISCLOSURE           A self-propelled, side loading vehicle com-prises a chassis supported on front and rear pairs of wheels and having three box-shaped sections separated by two transversely elongate clear ways extending from one side of the chassis to a rigid frame along a side of the chassis opposite the one side.  Three mast mem-bers are received on guide tracks mounted on the chas-sis and have means for independent transverse movement within the two clear ways and along one end of the chassis, each mast member comprising upper and lower telescopic sections and a fluid cylinder for raising and lowering the upper section.  A load-bearing assem-bly is supported by the upper section of each mast member and comprises an outwardly extending bracket connected to a roller chain, the chain extending about a powered sprocket for raising and lowering the brac-ket connected to the chain.  The bracket has a trans-versely extending, horizontal roller for supporting a load.
Patent CA-1156456-A (CA)
Inventor: DU MANOIR DE JUAYE PIERRE
IPC: C22B21/06
Filed: 1980-08-22
Granted: 1983-11-08
Abstract: The invention concerns an apparatus for active filtration and treatment of liquid metals and alloys and particularly to the purification of aluminum, magnesium, or alloys based on aluminum or magnesium, prior to molding. It comprises a detachable cartridge, closed at at least one end by a porous block based on grains of fritted flux and filled with grains of flux, solid at the temperature of the metal to be filtered. The cartridge may include a means for injecting an active or inert gas into the grains; it may be arranged in a heated, heat insulated ladle.
Patent CA-1138939-A (CA)
Inventor: BRESSLER PETER W
IPC: F24C7/08
Filed: 1980-09-18
Granted: 1983-01-04
Abstract: DOOR MOUNTED OVEN/CONTROLS                   Abstract of the Disclosure A microwave oven having the control panel mounted on the door.  The control panel includes a plurality Or pushbutton switches for the user to push to control the speed t time, etc. for variable cooking in the microwave oven.  The switches communicate to an electronic controller also mounted on the door.  The controller converts user input into signals that control tile various operating components of the oven, such as tile magnetron.  The con-troller is connected with these components via a flexible printed circuit cable which bridges the space between the door and the oven near or through the hinge area of the oven.
Patent CA-1167097-A (CA)
Inventor: DINGER EDWARD H
IPC: G05B15/02
Filed: 1980-10-24
Granted: 1984-05-08
Abstract: PROGRAMMABLE OVERLOAD CIRCUIT        ABSTRACT OF THE DISCLOSURE             Disclosed is an overload protective circuit for an electric motor which is adapted to monitor and track motor temperature as a function of an operating parameter, namely armature current.  The motor's armature current is sensed and converted to a multi-bit digital signal which is used to address a programmable read only memory (PROM) which has been pre-programmed with discrete digital values of temperature for a plurality of armature currents for the motor being protected.  The digital address signal for the armature motor current is periodically updated at a relatively rapid rate and depending upon the armature current sensed, multi-bit temperature values are outputted from the PROM to a digital latch which operates a relatively slower rate to output another address back to the PROM to as to predict what the temperature will be at the next time increment based on the present current value and the present temperature.  When predetermined temperature levels are reached, two bits of the PROM's output are respectively adapted to provide an alarm signal, and then a subsequent trip signal which is adapted to deenergize the motor.
Patent CA-1158717-A (CA)
Inventor: WISMAN FRANKLIN O
IPC: H02M7/515
Filed: 1980-11-05
Granted: 1983-12-13
Abstract: INVERTER                   Abstract of the Disclosure A self-commutating inverter supplies controllable frequency power to a load.  The load, which may be a simple induction motor or the like, has plural load windings which may be arranged in two groups so that a load winding in one group has a complementary load wind-ing in another.  Thyristors are associated with each of the complemented load windings and the thyristors of each group of load windings are capacitively coupled.  A DC potential is applied to the inverter by a pair of terminals. As different thyristors are enabled, current is commutated from. one load winding to another.  Excessive voltages induced by commutating the inductive loads are reduced by unidirectionally conducting devices coupled between a terminal and a divided load winding.  For producing three phase power of controlled frequency, the load has six windings, forming two groups of three findings each.  The thyristors associated with each group of wind-ings conduct periodically in a sequence, with each thy-ristor conducting for one third (or 120°) of the period. While the conduction periods for each of the groups of load windings are equal, they are offset in time by one-sixth (or 60°) of the period.
Patent CA-1149572-A (CA)
Title: High fiber throughput screening system for separating   aggregated fiber masses from individualized fibers  and soft fiber flocs and a system for forming an air-  laid web of dry fibers
Inventor: DINIUS JAMES H
IPC: D01H5/00
Filed: 1980-12-19
Granted: 1983-07-12
Abstract: ABSTRACT    Methods and apparatus for improving fiber throughput in a high speed production system for forming an air-laid web of dry fibers and wherein individual fibers are separated from aggregated fiber masses in an enclosed, pressurized rotor chamber comprising forming a segment of the chamber wall with a plurality of closely spaced, elongated, narrow slots oriented parallel to the axis of the rotor cnamber.
Patent CA-1149193-A (CA)
Title: Chromatographic analyzer detector and method
Inventor: WALKER STARNES E
IPC: G01N21/85
Filed: 1980-12-22
Granted: 1983-07-05
Abstract: Abstract of the Disclosure An optical absorbance detector which can be used in process chromatographic analyzers is provided.  In other aspects, methods for carrying out optical absorbance spectroscopy are provided.
Patent CA-1155644-A (CA)
Title: Procede perfectionne de consolidation de formations  geologiques
Inventor: BURGER JACQUES
IPC: C09K8/575
Filed: 1980-12-24
Granted: 1983-10-25
Abstract: Procédé de consolidation d'une formation géologique, comprenant les deux étapes successives suivantes: on injecte dans la formation un mélange organique liquide contenant au moins un composé chimique apte à se polymériser par oxydation et un catalyseur, ledit mélange étant capable de subir in situ, au contact d'un gaz oxydant, des réactions démarrant à la température normale de la formation géologique et conduisant à l'obtention d'un produit solide qui consolide cette formation sans affecter notablement sa perméabilité, et, on injecte un gaz oxydant en quantité suffisante pour obtenir une solidification sensiblement complète dudit liquide organique, cette quantité étant cependant limitée de façon que la température atteinte dans la formation, au cours desdites réactions, ne dépasse pas 350.degree.C, caractérisé en ce que ledit mélange organique liquide contient un catalyseur comportant en combinaison du plomb et au moins un élément du groupe constitué par le nickel, le cuivre et le zinc.
Patent CA-1154705-A (CA)
Inventor: DICKAKIAN GHAZI
IPC: D01F9/32
Filed: 1981-01-23
Granted: 1983-10-04
Abstract: ABSTRACT OF THE DISCLOSURE         A process for converting cat cracker bottoms to a feedstock suitable for carbon artifact manufacture, espe-cially carbon fiber manufacture, is provided.  Basically, the cat cracker bottom is stripped of fractions boiling below about 400°C, heat soaked and then vacuum stripped to provide a suitable feedstock.
Patent CA-1165915-A (CA)
Inventor: CHEA RAMON C W JR
IPC: H04M19/02
Filed: 1981-03-30
Granted: 1984-04-17
Abstract: R. Chea -5 Abstract of the Disclosure The present invention comprehends an improved ringing circuit particularly suitable for digital telecommunica-tions systems wherein the energizing and de-energizing  of the ring circuitry is programmably controlled to provide for either hardware or software generation of ringing cadence, dc bias polarity, dry-switching of ring relays, and other signaling voltages.  Further in accordance with the invention, a digital implementation of a complete ringing circuit is achieved without the use of bulky transformers. JPM/kt
Patent CA-1152090-A (CA)
Inventor: PREZIOSI ANTHONY F
IPC: C07C67/00
Filed: 1981-06-11
Granted: 1983-08-16
Abstract: ABSTRACT            Water-soluble polyacetylenic alkali metal salts from monomers and polymers of carboxymethyl ure-thanes of di-, tetra-, and hexayne diols, or from the corresponding diacids; useful in thermal and irradiation exposure indicators and/or in detection and/or removal of nonalkali metal ions dissolved in aqueous media.
Patent CA-1169642-A (CA)
Inventor: BROCKLEBANK PHILIP
IPC: C23F11/16
Filed: 1981-07-23
Granted: 1984-06-26
Abstract: Reference 5820 THE TREATMENT OF AQUEOUS SYSTEMS                   Abstract of the Disclosure Composition and method for inhibiting corrosion in aqueous systems using synergistic combination of an inorganic nitrite and a phosphonate, e.g., 10-20 ppm sodium nitrite plus 0.5-5 ppm hydroxyethylidene diphosphonic acid.
Patent CA-1183257-A (CA)
Inventor: CAMERIK EDUARD
IPC: G11B7/00
Filed: 1981-07-30
Granted: 1985-02-26
Abstract: ABSTRACT:          By means of a radiation beam an apparatus writes or reads information on an information surface of a rotary optical information disc, which apparatus comprises an objective frame on which an objective for concentrating the radiation beam to form a radiation spot is mounted by means of a parallel guide in such a way that it can move along its optical axis. The objective is protected against dust, contaminants and mechanical damage by means of stationary plane-parallel, radiation-beam-transmissive shielding means which are interposed between the objective and the rotary information disc, the lens system of the objective being corrected for the optical properties of the shielding means.
Patent CA-1166579-A (CA)
Inventor: CHEN JAMES L
IPC: A61K8/362
Filed: 1981-08-14
Granted: 1984-05-01
Abstract: SA21 Abstract HYDROCOLLOID CONTAINING PASTE-LIKE COMPOSITION A composition for treating the skin parti-cularly in the area contiguous to a stoma. The composition includes one or more hydrocolloids, a film former, a plasticizer, a thickening agent, and a alcohol solvent.
Patent CA-1178880-A (CA)
Inventor: KELLER JAKOB
IPC: B05B17/06
Filed: 1981-10-14
Granted: 1984-12-04
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention relates to a resonant chamber atomizer for liquids.  The atomizer possesses supply lines for the atomizing gas and the liquid to be atomized as well as an outflow chamber for the mixture of gas and atomized liquid.          Between the outflow cross-section of the supply line for the gas and the cross-section of the entry of the outflow channel there is a resonant chamber.  The chamber is bounded by plane surfaces and has a flat, preferably prismatic, form.  The main dimension of the chamber runs transverse to the direction of flow in the atomizer.
Patent CA-1180675-A (CA)
Inventor: MISCIOSCIO KATHLEEN B
IPC: C25D3/50
Filed: 1981-11-12
Granted: 1985-01-08
Abstract: ABSTRACT OF THE DISCLOSURE           The invention is concerned with electropla-ting baths suitable for obtaining white deposits of palladium metal.  The bath comprises diaminodinitrite, an ammonium salt, and a sufficient amount of ammonium hydroxide to obtain a bath pH of about 9.  Buffers such as ammonium biborate may be employed to maintain the necessary bath pH during electroplating operations to produce a thin, white deposit of palladium metal. A process of using such elec-troplating baths to produce white deposits of palladium metal on substrates is also disclosed.
Patent CA-1168664-A (CA)
Inventor: JENSEN JAMES R
IPC: B60G11/46
Filed: 1981-12-14
Granted: 1984-06-05
Abstract: LOW-FREQUENCY-RATE SPRING SUSPENSION                   SYSTEM FOR A WHEELED VEHICLE          Abstract of the Disclosure A low-frequency rate spring suspension system for a wheeled vehicle.  A metal leaf spring has one end shackled directly to a bracket on the vehicle frame and a central portion secured to an axle.  The second end of the leaf spring is spaced from the frame with guide means limiting lateral movement thereof while enabling vertical and longitudinal movement thereof.  An air bag of an air spring is secured to the leaf spring in between the second end and the central portion and is also secured to the frame, the air bag being offset from the axle.  The height of the air bag is controlled by a valve and a lever, so that the second end does not come into contact with the frame except under extraordinary circumstances. The leaf spring positions the air bag relative to the axle and provides roll resistance, while the air spring carries load to the frame in parallel with the forward section of the leaf spring, and no vertical load is placed on the leaf spring through the rear bracket.  The guide means pro-vide lateral location to the second end of the leaf spring without transmitting vertical load.
Patent CA-1182097-A (CA)
Inventor: CHU POCHEN
IPC: B01J29/70
Filed: 1981-12-23
Granted: 1985-02-05
Abstract: METHOD OF REMOVING ORGANIC CATIONS FROM ZEOLITES            ABSTRACT          A method of removing the organic cation from an organic cation-containing zeolite which comprises contacting the zeolite at low temperatures with a solution of an oxidizing agent, simultaneously improving the dispersive and catalytic properties of the zeolite.
Patent CA-1179762-A (CA)
Inventor: THOMAS STEPHEN W
IPC: G01V1/30
Filed: 1982-01-21
Granted: 1984-12-18
Abstract: A METHOD OF DETERMINING THE RATIO OF THE VELOCITIES OF COMPRESSIONAL AND SHEAR WAVES IN            SUBTERRANEAN FORMATIONS       Abstract of the Disclosure Maximum likelihood estimation theory is applied to the determination of the ratio of P-wave velocity to S-wave velocity (Vp/Vs) from P-wave and S-wave seismic sections obtained along the same line of exploration.  For a certain statistical model, the optimal estimate for Vp/Vs is deter-mined, and shown to be equivalent to maximizing the simple mathematical correlation between P-wave and stretched S-wave seismogram segments.  The maximum likelihood method provides a data-dependent formula for the mean square error associated with the Vp/Vs estimate.  Alternatively, the latter formula provides a measure of the Vp/Vs information contained in the data.  The information measure also pro-vides optimal weighting for computing multitrace Vp/Vs averages, and provides for the determination of the statistical error in such averages.
Patent CA-1177419-A (CA)
Inventor: SPENCER EDWARD P
IPC: B21D51/26
Filed: 1982-02-09
Granted: 1984-11-06
Abstract: METHOD OF PRODUCING CONTAINER BODIES AND CONTAINER BODIES PRODUCED THEREBY                 ABSTRACT OF THE DISCLOSURE           Cylindrical container bodies, or cans, having welded sideseams are formed from sheet steel blanks having a thin coating of nickel, or a coating of nickel containing up to about 12 percent zinc, on each side.          The nickel coating extends completely to the edges of the blanks which are formed into a cylindrical configuration with the side edges slightly overlapping.  The overlapped edges of the respective blanks are then welded, preferably by a wire mash welding process, to produce a welded seam having a thickness substantially less than twice -the thickness of the metal blank.  Prior to welding, the nickel plated steel may be chemically treated in a dichromate or chromic acid solution, with the chemical treatment also extending completely to the edges to be welded.  Power requirements for welding the material are substantially less than for tin plate.                       -1-                    Case 796
Patent CA-1189684-A (CA)
Inventor: FELDMAN KIEVA
IPC: H01M10/42
Filed: 1982-02-16
Granted: 1985-07-02
Abstract: Abstract of the Disclosure The invention disclosed is a process and apparatus for reducing the concentration of dissolved contaminant in a contaminated liquid, with specific application to the regeneration of contaminated electrolytic in an electrolytic cell, wherein the electrolyte is removed from the cell under vacuum and mixed with a washing liquid e.g. water and clean electrolyte.  The mixed electrolyte is returned to the cell and the process repeated until the contaminant concentration in the washing liquid and electrolyte are substan-tially the same.