baber/WOPTO huggingface dataset:
Patent CA-2023588-A1 (CA)
Title: Can top
Inventor: AMABILI ARNALDO
IPC: B65D17/34
Filed: 1990-08-20
Abstract: The present invention provides an improved easy open end wall for a beverage container wherein the removable non-detachable panel covering the dispensing aperture is removed outwardly to prevent contamination of the contents while the force required to start the tear initiation is minimized.
Patent CA-2024639-A1 (CA)
IPC: H01L21/306
Filed: 1990-09-05
Abstract: ABSTRACT OF THE DISCLOSURE            ULTRA HIGH DENSITY THREE-DIMENSIONAL      SEMICONDUCTOR STRUCTURES      Three-dimensional  semiconductor  structures  are taught in which various device types are formed from a plurality of planar layers on a substrate. The major process steps include the formation of a plurality of alternating layers of material, including semiconductor and dielectric materials,  forming a vertical  access hole in the layers, processing the layers selectively to form active or passive semiconductor devices,  and filling the access hole with a conductor.  The ultimate structure includes a three-dimensional memory array in which entire dynamic memory cells are fabricated in a stacked vertical orientation above  support circuitry formed on a planar surface.
Patent CA-2027518-A1 (CA)
Title: Process for preparing high density detergent compositions containing particulate ph sensitive surfactant
Inventor: TADSEN RICHARD L
IPC: C11D11/04
Filed: 1990-10-12
Abstract: PROCESS FOR PREPARING HIGH DENSITY DETERGENT COMPOSITIONS    CONTAINING PARTICULATE PH SENSITIVE SURFACTANT                    Richard L. Tadsen and Gary W. Bufler ABSTRACT      A process  for preparing a high-density granular detergent product by dry neutralizing alkylbenzene sulfonic acid with a particulate mixture  of  a water-soluble  alkaline  inorganic material,  for example,  sodium carbonate,  and  a hydratable inorganic detergent builder in an apparatus which  provides both mixing and shearing of the particulate mixture. e.g.  a V-Blender,  thereby forming the granular detergent  product. The  process  includes  the  addition  of  particles  of  pH sensitive detergent surfactant,  such as alkyl sulfate,  into the  particulate  mixture  prior  to  the  addition  of  the alkylbenzene  sulfonic  acid.   The high-density product  has good  product  homogeneity  and  surfactant  solubility,  and essentially  no  reversion  of  the  alkyl  sulfate  to  the corresponding fatty alcohol due to acid-catalyzed hydrolysis. Other   pH    sensitive   detergent    surfactants    include alpha-sulfonated fatty acid alkyl ester and polyhydroxy fatty acid amides.
Patent CA-2027813-A1 (CA)
IPC: H04M3/00
Filed: 1990-10-17
Abstract: METHOD AND APPARATUS FOR CONTROLLING A DIGITAL CROSSCONNECT SYSTEM FROM A SWITCHING SYSTEM Abstract This invention relates to apparatus and a method for controlling a Digital Access and Crossconnect System (DACS) from a connected toll switching system. All control messages from operations support systems (OSS) for making crossconnect changes in the DACS are first routed to the toll switch. The toll switch extracts information needed to update its database and sends a control message to the DACS. In addition, the toll switch responds to changes in traffic patterns, perhaps due to the loss of a transmission facility, to generate a crossconnect change message to the DACS to rearrange facilities for more optimum performance. Advantageously, the OSSs for DACS control and switch control is combined and thetoll network is made more responsive to traffic pattern changes and to losses oftransmission facilities.
Patent CA-2030526-A1 (CA)
Inventor: WINKLER KARL
IPC: B29L9/00
Filed: 1990-04-04
Abstract: This invention relates to a method and apparatus for the heat-forming of a laminated plastic sheet.  In prior known methods and apparatuses the bending of a laminated sheet has resulted in relative movement between the layers of the laminate.  In addition only right-angled bends can be formed.    In the process of the present invention, a uniform bending pressure applied to the regions of the edges of the sheet which are to be bent during the entire bending process such that a uniform tension is exerted on the various laminated layers of the free edge of the sheet.
Patent CA-2031672-A1 (CA)
IPC: G11B7/258
Filed: 1990-12-06
Abstract: The present invention provides an optical information handling device in which reflectivity of a conventional reproduction-only type is lowered to 60% or less which is equal to the reflectivity of a write-once type and a rewritable type optical disk, whereby the interchangeability of these disks is realized.  The information processing device of the invention can be interchangeable with a lower quality information handling device.  The optical disk can be of the credit card size.
Patent CA-2031986-A1 (CA)
Title: Strips of interconnected pre-opened reclosable bags
Inventor: SCARBERRY PAUL W
IPC: B65D75/46
Filed: 1990-12-11
Abstract: Abstract of the Disclosure Strips (1,21,31,41,51) of pre-opened bags (2,2') detachably connected together in which each bag (2,2') includes a reclosable system comprising an adhesive tape (15) that is adhered along the exterior of one wall (3) of the bag (2,2') spanning an open zone (14,42) defined therein and that is adhered to an inner surface of the second wall (4) of the bag within the open zone (14,42).          Methods for manufacturing strips of pre-opened reclosable bags of the foregoing type are also disclosed.
Patent CA-2038858-A1 (CA)
Inventor: GHORASHI HAMID M
IPC: H01B3/30
Filed: 1991-03-22
Abstract: Title Coated Wire Abstract of the Disclosure Copper wire insulated with a certain copolyamide sheath is stable to high temperatures and is resistant to water crazing, cracking and loss of coating.
Patent CA-2040174-A1 (CA)
Inventor: ISELER KENNETH A
IPC: C08L67/06
Filed: 1991-04-10
Abstract: Molded articles prepared from flexible sheet molding compounds, and method of making the same. A flexibility modifying agent is incorporated into a thermoset resin composition (e. g. sheet molding compound) to improve the flexibility characteristics of the thermoset resin composition by lowering the flexural modulus. The thermoset resin composition also contains therein an isocyanate terminated urethane prepolymer; a thickening agent; a catalyst; a fibrous reinforcing material; and an inert filler.
Patent CA-2043585-A1 (CA)
Title: Process for enhancing the dewaterability of waste sludge from microbiological digestion
Inventor: KOVACS GEZA L
IPC: C02F11/127
Filed: 1991-05-30
Abstract: ABSTRACT OF THE DISCLOSURE      A  process  for  enhancing  the  dewaterability  of concentrated waste sludges which have a substantial content of a water retaining cellular structure arising from microbiological action by heat treating them at temperatures in excess of about 260°F is disclosed.  A preferred  embodiment  involves  the  use  of  treatment temperatures of less than about 390°F and consequently a treatment pressure of less than about 200 psig.  The heat treatment is advantageously conducted by direct contact  between  the  concentrated  waste  sludge  and pressurized steam.  The effect of the heat treatment may be accelerated by adjusting the pH of the sludge to an extreme value, particularly an acid value of about 3 or less.  It is beneficial to neutralize the concentrated waste sludge before dewatering it and it is advantageous to neutralize before completing the heat treatment.
Patent CA-2049192-A1 (CA)
Title: Pressure sensing elements and method of making same
Inventor: PAPAI RICHARD A
IPC: G01L7/08
Filed: 1991-08-14
Abstract: ABSTRACT OF THE DISCLOSURE    Pressure vessel components of a sensing element are formed from liquid crystal polymers.  Individual LCP components may be ultrasonically adhered to one another to form a hermetic seal.  In the preferred embodiment, a metal tube is hermetically sealed to a pressure vessel cup by molding an LCP resin around a cleaned and heated tube to form a hermetic seal.  Also in the preferred embodiment, the sensing element includes a single convolution diaphragm formed under heat and pressure using a polyimide film.
Patent CA-2049677-A1 (CA)
Title: Elastic fastening line with protective sheath
Inventor: BROWN A RICHARD
IPC: D07B1/14
Filed: 1991-08-22
Abstract: An elastically extendible fastening line is adapted to prevent eye injury upon failure of the fastening line. A pair of hooks are secured to opposite ends of an elastically extendible cable. A flexible, relatively non-elastic sheath surrounds the cable. Opposite ends of the sheath are attached to the hooks. The sheath is longer than the elastomeric cable in its resting state thereby permitting extension of the cable. Once the sheath is fully extended, it prevents extension of the cable beyond its normally expect elastic limit. If the cable does snap while under tension, any resulting movement of cable pieces is confined by the sheath thereby avoiding injury to a worker.
Patent CA-2050794-A1 (CA)
Title: Hypergraphics
Inventor: BROWN JERRY R
IPC: G06F17/50
Filed: 1991-09-06
Abstract: ?09-89-007 HYPERGRAPHICS            Abstract of the Disclosure Storing records of extended graphics information and re-trieving   such   information   according   to   pointers associated  with  selected  displayed  entities.   Certain classes of functions related to the extended graphics information may be grouped under selective application features.
Patent CA-2052511-A1 (CA)
Inventor: AIKAWA YOSHIHIKO
IPC: D21D5/16
Filed: 1991-09-30
Abstract: A strainer for paper making capable of accomplishing maceration and screening of a paper feedstock with high efficiency and being simplified in structure and manufacturing.  The strainer is arranged in proximity to a rotor and formed with a plurality of recesses on a surface thereof opposite to the rotor.  Also, a screening apparatus for paper making which uses such a strainer is disclosed.
Patent CA-2052602-A1 (CA)
Title: Liquid detergent compositions
Inventor: BAHARY WILLIAM S
IPC: C11D3/37
Filed: 1991-10-01
Abstract: C 6133 (R) ABSTRACT        An aqueous thixotropic automatic dishwashing composition comprises a chlorine bleach, a cross-linked polymeric polycarboxylate thickener of high molecular weight, a soluble detergency builder of which at least part is a polymeric polycarboxylate builder of relatively low molecular weight, and an alkaline buffer system comprising an alkali metal silicate and an alkali metal hydroxide which provides a high pH.  The compositions may be formulated to be translucent and to have a long gel life.
Patent CA-2054843-A1 (CA)
Inventor: BLENK ROBERT G
IPC: C12N15/03
Filed: 1991-11-01
Abstract: 1. Novel strains of the insecticidal microorganism Bacillus thuringiensis are described. These contain novel genes, and in particular a gene coding for a novel insecticidal endotoxin, 81 kiloDaltons in length, toxic to both Lepidoptera and Coleoptera. The novel strains and the genes they contain may be used to combat insect attack against plants.
Patent CA-2055088-A1 (CA)
Title: Bicycle trailer
Inventor: PROVOST MICHEL
IPC: B62D63/06
Filed: 1991-11-06
Abstract: ABSTRACT     There is provided a trailer suitable for towing children behind a bicycle, the trailer being formed of a molded plastics material with a pair of fore and aft seats being integrally molded into the trailer, and a towing member attaching the trailer to the bicycle by means of a universal joint arrangement.
Patent CA-2061119-A1 (CA)
Title: Method of depositing conductors in high aspect ratio apertures
Inventor: LEE PEI-ING P
IPC: H05K3/40
Filed: 1992-02-12
Abstract: A sputtering deposition wherein high aspect ratio apertures are coated with conductive films exhibiting low bulk  resistivity,   low  impurity  concentrations,   and regular morphologies.   A collimator is used having an aspect ratio that approximates the aspect ratio of the apertures.  The resulting film thickness at the bottom of the aperture is at least 2X what can be achieved using conventional sputtering methods.
Patent CA-2064810-A1 (CA)
Title: System for remotely crediting and billing usage of electronic entertainment machines
Inventor: TILLERY MICHAEL L
IPC: G07F5/18
Filed: 1991-06-04
Abstract: A method and apparatus for remotely crediting and billing usage of a plurality of electronic entertainment machines (30) situated at different locations. Each electronic entertainment (30) is connected via a transmission link (20) to a billing computer (11) situated at a central billing location (10). The establishment having an electronic entertainment machine (30) may award credit to the electronic entertainment machine by remote control after a customer has paid for credit or the user can insert money in the machine. Each electronic entertainment machine (30) records the number of credits that have been awarded to the machine. At a predetermined time, the billing computer (11) polls each location via the transmission link (20), and the electronic entertainment machine (30) at each location transmits credit data to the billing computer (11). Each location is then billed for the use of their respective electronic entertainment machines as determined by the number of awarded credits.
Patent CA-2072640-A1 (CA)
Title: Oil retriever and method of use therefor
Inventor: POLE CHARLES D
IPC: E02B15/10
Filed: 1990-11-09
Abstract: ABSTRACT An oil retriever for recovering heavy oil, including bunker c, from a body of water is a self-contained unit that is manoeuverable independently of land.  The retriever has two pontoons that are spaced apart and parallel from one another.  Across the front of the pontoons, there is rotatably mounted a cylindrically-shaped drum with closed ends.  The drum is light enough to float on the oil and/or water.  The drum is rotated about its longitudinal central axis by a reversible variable speed motor.  There are two scrapers extending along the entire rearward side of the drum.  A first scraper forms a line of contact with the drum but a second scraper is out of contact with the drum.  Between the pontoons to the rear of the drum is a storage tank that is initially filled with water.  Most of the storage tank is located below the water surface.  As the drum is rotated in such a direction that a forward edge moves downward into the oil and water, some of the oil coats the drum surface, the coating being thin enough to pass between the second scraper and the drum.  The first scraper removes the oil and it falls back towards the second scraper.  The oil then falls onto the lower scraper and from the lower scraper into the storage tank.  A base of the storage tank contains a valve, which is open during the collection process.  As the oil builds up in the storage tank, it will float on the surface of the water and will steadily force the water present in the storage tank out the valve.  When the tank is filled or nearly filled with oil, the valve is closed, the tank is removed from the retriever and emptied or replaced by a new tank.  If the oil is thin enough to be pumped, the tank can be left in the retriever while the oil is pumped out of it.  Subsequently, more oil can be collected to refill the tank and the process can be repeated.  Previous oil retrievers are relatively inefficient when used to recover heavy oil, particularly when the oil is located in cold water and forms a cohesive sticky mass.
Patent CA-2074227-A1 (CA)
Title: Adjustably mounted air current deflector shield
Inventor: STANESIC JOHN M
IPC: B60J1/20
Filed: 1992-07-20
Abstract: ABSTRACT     An improved air current deflector shield is provided having a substantially horizontal base portion and a deflecting portion extending upwardly from the base portion so as to deflect air over the hood and windshield of a vehicle when the vehicle is moving forwardly.  The base portion includes a plurality of elongated mounting slots which are aligned with corresponding holes in the hood.  Fastening screws extend through the slots and are threadably received in the hood holes.  In mounting the shield upon the hood, the screws are partially threaded into the holes, such that the shield is loosely secured and can be laterally adjusted with respect to the hood to a desired position.  The screws are then tightened to hold the shield in the selected position.
Patent CA-2074646-A1 (CA)
Title: Phthalocyanine pigment compositions
Inventor: KEIRS DAVID
IPC: C09B67/22
Filed: 1992-07-24
Abstract: Case P-18736/A/MA 2037 ABSTRACT OF THE DISCLOSURE                 Phthalocyanine Pigment Compositions A pigment composition comprising (A) a pigmentary phthalocyanine, (B) a phthalocyanine derivative of formula                 I where Pc is a residue of a metal-free or metal phthalocyanine, X is -CH2- or -SO2-,R1 and R2 are independently hydrogen, C1-C20 alkyl optionally substituted by hydroxyl, C1 to C4 alkoxy, amino, C1 to C10 alkylamino or di(C1 to C10alkyl)amino, C5 to C10 cycloalkyl, or phenyl optionally substituted by C1 to C4 alkyl, C1 to C4 alkoxy or halogen, or R1 and R2 together with the indicated nitrogen atom denote a five-, six- or seven-membered heterocyclic ring, or R1 and R2 together denote a group of formula                 II R3 is an o-phenylene group optionally substituted by C1 to C4 alkyl, C1 to C4 alkoxy, nitro or halogen, and m has an average value of 1 to 5, and (C) at least one anionic surfactant selected from (i) a monovalent metal or ammonium salt of an organic sulfonic acid, (ii) a sulfate half-ester of an alcohol or a monovalent metal or ammonium salt thereof, (iii) a sulfosuccinic acid ester or a monovalent metal or ammonium salt thereof, (iv) a sulfosuccinamic acid or a monovalent metal or ammonium salt thereof or (v) an aminosulfonic acid or a monovalent metal or ammonium salt thereof.
Patent CA-2074828-A1 (CA)
Title: Gold carboxylates and process for preparing the same
Inventor: NAPPIER THOMAS E
IPC: C07C51/41
Filed: 1991-11-22
Abstract: Gold carboxylates and a process for preparing gold salts of organic carboxylic acids are described. The gold carboxylates are represented by formula (I), in which R represents hydrogen or an organic group of valence y and x, y and z each represent a positive integer such that x = y.z/3. The process comprises reacting an alkali or alkaline earth metal salt of an organic carboxylic acid with a gold salt in an organic liquid which at least partially dissolves the alkali and/or alkaline earth metal salt, the gold salt, and the desired gold carboxylate product, but is not a solvent for the salt formed between the alkali or alkaline earth metal and the anion of the gold salt.
Patent CA-2075923-A1 (CA)
Inventor: HENDEL HORST
IPC: H01H50/14
Filed: 1990-12-03
Abstract: Abstract Before the tab connector (4) is inserted into a perforation (3) of the base (1), at least one rib (7) is stamped in the direction of insertion on a flat side. After the tab connector (4) has been inserted, said rib (7)  is pared against the direction of insertion and deformed in the direction towards the underside of the base.        This results in a positively locking fastening of the tab connector (4) without deformations in the per-foration (3) of the base.            Figure 1
Patent CA-2076063-A1 (CA)
Title: Sulfated glycosaminoglycanoid derivatives
Inventor: PETITOU MAURICE
IPC: C07H15/26
Filed: 1992-08-13
Abstract: The invention relates to a sulfated glycosaminoglycanoid derivative or a pharmaceutically acceptable salt thereof, of which the functional N-sulfate, N-acetate, and hydroxy groups, are replaced by alkoxy, aryloxy, aralkoxy, O-sulfate, or OALK(OALK)n OX groups (wherein ALK is an aliphatic hydrocarbon group, n is 0-5, and X is an alkyl or aryl group), provided that at least two functional groups are not replaced by O-sulfate.      The compounds have antithrombotic and smooth muscle cell proliferation inhibiting activities.
Patent CA-2076801-A1 (CA)
Title: N-substituted aminomethanediphosphonic acids
Inventor: JAEGGI KNUT A
IPC: A61K31/66
Filed: 1992-08-25
Abstract: N-substituted aminomethanediphosphonic acids Abstract N-substituted aminomethanediphosphonic acids of the formula I,    (I) wherein R1, X, alk1, R2 and n are as defined in the description, and salts thereof, have valuable pharmaceutical properties and are effective e.g. in the treatment of conditions which can be associated with disorders of the calcium metabolism. They are manufactured in a manner known per se.
Patent CA-2076896-A1 (CA)
Title: Chemical sensor for carbon monoxide detection
Inventor: KIRBY KEVIN W
IPC: G01N27/12
Filed: 1992-08-26
Abstract: CHEMICAL SENSOR FOR CARBON MONOXIDE DETECTION     ABSTRACT OF THE DISCLOSURE        A ceramic sensor (12) comprising a thin film (14) of Cu1+xMn2-xO4-y is provided that quantitatively measures the partial pressure of CO gas in a flowing  system (22).  The sensor is specific to CO gas and is negligibly affected by the presence of the common automobile exhaust vapors NO, H2O, and CH4, within the operational temperature range from about 250° to 450°C.  The CO sensor of the invention has other applications, such as monitoring CO levels in labora-tories, mines, and industrial smoke stacks, and may be used in environments up to about 700°C.
Patent CA-2081805-A1 (CA)
Title: Process for the manufacture of substituted maleimides
Inventor: HILL CHRISTOPHER H
IPC: C07D409/14
Filed: 1992-10-30
Abstract: The invention provides a process for the manufacture of substituted maleimides of the formula (see formula I) wherein R1 represents alkyl, aryl or heteroaryl and R2 represents hydrogen, alkyl, alkoxycarbonyl, aryl or heteroaryl, by reacting an activated glyoxylate of the formula (see formula II) wherein R1 has the above significance and X represents a leaving atom or group, with an imidate of the formula (see formula III) wherein R2 has the above significance, R3 represents alkyl, aryl or trialkylsilyl and Y represents oxygen or sulphur, in the presence of a base and, after treating a reaction product obtained in which R2 represents hydrogen or alkyl with a strong base, hydrolyzing and dehydrating the resulting hydroxypyrrolinone of the formula (see formula IV) wherein R1, R2, R3 and Y have the above significance.      The substituted maleimides of formula I are pharmacologoically active, for example as protein kinase C inhibitors useful e.g. in the treatment and prophylaxis of inflammatory, immunological, bronchopulmonary and cardiovascular disorders, or as antiproliferative agents useful e.g. in the treatment of immune diseases and allergic disorders.
Patent CA-2086911-A1 (CA)
Title: Diastereoselective hydrogenation of folic acid to tetrahydrofolic acid
Inventor: BRUNNER HENRI
IPC: B01J31/24
Filed: 1993-01-07
Abstract: O.Z. 0050/42948 Abstract of the Disclosure: A method for the diastereo-selective hydrogenation of folic acid to tetrahydrofolic acid, comprises carrying out the hydrogenation of the folic acid in the presence of an immobilized rhodium(I) complex of an optically active diphosphine in a neutral aqueous buffer solution under an H2 pressure of more than 20 bar and at a temperature exceeding 60°C.
Patent CA-2091310-A1 (CA)
Title: Concrete composition having high flowability
Inventor: KOYATA HIDEO
IPC: C08F290/00
Filed: 1993-03-09
Abstract: ABSTRACT     A concrete composition which exhibits high flowability, low decrease in flowability with progression of time and lack of segregation over time, is composed of from 350 to 700 Kg of hydraulic cement material per m3 of concrete, up to 185 g of water per m3 of concrete, fine aggregate, coarse aggregate and from 0.05 to 3 parts per 100 parts of hydraulic cement material of certain specific alkenyl ether/maleic anhydride copolymers material.