baber/WOPTO huggingface dataset:
Patent CA-2001315-A1 (CA)
Inventor: HIBLER DONALD R SR
IPC: F02K9/97
Filed: 1989-10-24
Abstract: Rupture disc bulkhead structure for use in a multi-stage rocket motor for missiles or the like wherein the disc is supported by a multiple aper-tured backup member.   The disc  has  a  series  of bulges which define dimples that conform to the con-figuration of the apertures in the backup member. Bulging of the disc is carried out under a pressure exceeding  that  of  the  withstand  pressure  of  the supported disc.   Score lines in the disc aligned with the support segments of the apertured backup member permit the disc  to  rupture and open at a pressure significantly lower than the back pressure withstand value.  The construction provides bulkhead structure which will withstand back pressures in the range of 2,000 to 10,000 static psig yet fully open in a forward direction at a static pressure of no more than about 100 to 400 psig.
Patent CA-2004464-A1 (CA)
Title: Identification of wood species
Inventor: BARBOUR R JAMES
IPC: G01N27/64
Filed: 1989-12-01
Abstract: A method and apparatus to produce an ion mobility signature representing a wood sample provides a method of comparing signatures to identify the species of the wood sample.  A method of producing an ion drift time signature representing a wood species comprises heating at least a portion of a wood sample at a temperature in the range of about 220 to 350°C to desorb and produce trace vapours from the wood sample, ionize the trace vapours at a temperature in the range of about 220 to 350°C, pulse ions through a gate into a drift region, measure the time of arrival of the ions and the ion flux for each pulse, with a collector electrode, located at the end of the drift region to produce an ionic signal, and amplify and average the ionic signal to provide an ion drift time signature for the wood sample.
Patent CA-2011781-A1 (CA)
Title: Electrolytic reductive coupling of quaternary ammonium compounds
Inventor: DUTCHER JOHN S
IPC: C25B3/29
Filed: 1990-03-08
Abstract: Title:   ELECTROLYTIC  REDUCTIVE  COUPLING  OF QUATERNARY        AMMONIUM COMPOUNDS                 Abstract of the Disclosure A  process  is  described  for  the electrolytic reductive  coupling  of  quaternary ammonium compounds to themselves  or  to other reactive organic compounds, said quaternary compounds being characterized by the formula [(R1)3N+-R2]ay-a                   (I) wherein  each  R1  is  independently  an alkyl group con-taining  from  1 to about 10 carbon atoms, a hydroxyalkyl or  alkoxyalkyl  group containing from 2 to about 10 car-bon  atoms,  an  aryl  group,  or  two  of  the R1 groups together  with  the  nitrogen  atom  form  a heterocyclic group,  provided  that if the heterocyclic group contains a  -C=N-  group,  the  third R1 group is the second bond; R2  is  a hydrocarbyl group containing olefinic unsatura-tion,  or  a  hydrocarbyl  group containing a substituent which  is  reactive  or removable under the conditions of the  process;  Y-  is  an  anion;  and  a is equal to the valence of Y; which process comprises (A) providing  an  electrolytic cell comprising an anode and a cathode;         (B)  charging  into  the  electrolytic  cell,  a solution  containing  at  least  one  of  said quaternary ammonium  compounds  (I),  and,  optionally, at least one other  organic  compound  capable  of  reacting  with the quaternary  ammonium compound (I) under the conditions of the reaction;         (C)  passing  an  electric  current  through the electrolytic  cell  to  reductively couple the quaternary ammonium  compound  to  itself  or  to  the other organic compound; and (D)  recovering   the  solution  containing  the coupled product from the electrolytic cell. The  process  is  particularly useful for the preparation of diquaternary ammonium compounds.
Patent CA-2013350-A1 (CA)
Title: Refractory metal oxide coated abrasives and grinding wheels made therefrom
Inventor: ST PIERRE PHILIPPE D
IPC: C09K3/14
Filed: 1990-03-29
Abstract: Abstract of The Invention There are provided abrasive particles having a refractory metal oxide coating, a non-metallic precursor to a refractory metal oxide coating, or an elemental metal coating of at least about 20 weight percent of the abrasive particles. In addition abrasive tools such as grinding wheels, especially vitreous bonded grinding wheels, utilizing the coated abrasive particles are provided.
Patent CA-2014949-A1 (CA)
Title: Vehicle brake
Inventor: SIEGRIST ERIC
IPC: F16D65/807
Filed: 1990-04-19
Abstract: ABSTRACT OF THE DISCLOSURE        The present invention relates to a vehicle brake and hub comprising a ring braking member having braking surfaces both to the interior and exterior of the member in combination with a cast hub which includes centrally disposed aligned bearing ports for receiving bearings.  The cast hub includes an outwardly exposed securing surface which cooperates with the ring braking member to effect securement of the braking member to the casting and in a manner to accommodate heat transfer therebetween.  The cast hub includes intermediate the securing surface and the align ports, fan blades which cause during rotation of the hub an axial flow of air to move across the bearing ports and to extract heat from the fan blades and the securing surface. The fan blades collectively interconnect and structurally secure the securing surface and the bearing ports.
Patent CA-2016571-A1 (CA)
Title: Edge-illuminated liquid crystal display devices
Inventor: MARGERUM J DAVID
IPC: G02F1/1334
Filed: 1990-05-11
Abstract: EDGE-ILLUMINATED LIQUID CRYSTAL DISPLAY DEVICES            ABSTRACT OF THE INVENTION     A high contrast display is provided by illuminating a polymer dispersed  liquid  crystal  (PDLC)  display panel through opposite edges thereof.  Light is scattered out the front of the panel from non-activated areas of the PDLC in which the refractive indices of the liquid crystal and polymer matrix materials are mismatched.  For a direct view transmission mode display, the rear of the panel is black-ened so that activated areas of the PDLC in which the refractive indices of the materials are matched transmit edge-illuminated and ambient light and appear black.  For a  reflection mode  display  usable  in  combination with projection optics, the rear of the panel is provided with a mirror surface,  and ambient light is prevented from reaching the panel.
Patent CA-2017686-A1 (CA)
Title: Automatic pencil
Inventor: SHEU TYNG-JEN
IPC: B43K21/027
Filed: 1990-05-31
Abstract: ABSTRACT OF THE DISCLOSURE An  automatic pencil includes an elongated tube  an elongated  tube  having an upper open  end,  a  tapered lower  end,  and  a central  bore  formed  therein.   A plurality of leads are received in the elongated  tube.          A guiding device is mounted in the elongated tube  near the lower end of the elongated tube for preventing  the one  of the leads from moving toward the upper  end  of the elongated tube.  A propelling mechanism is provided for enabling the leads to enter the guiding device  and protrude  from the lower end of the elongated tube  for writing  purposes.  The elongated tube has a  plurality of  positioning  grooves  of  a  predetermined   length axially formed around an inner surface thereof near the upper open end.  The central bore of the elongated tube has  an upper section and a lower section the  diameter of which is smaller than that of the upper section,  so that a shoulder portion is formed below the positioning grooves.  The lower section has a lower end adjacent to the  guiding  device,  and  a  plurality  of  receiving grooves  radially extending from the lower section  for receiving the leads.  Each of the receiving grooves  is correspondingly aligned with the respective positioning groove  and  has an upper end  communicating  with  the upper section.
Patent CA-2019759-A1 (CA)
Title: Beverage dispensing nozzle and method of mixing liquids therewith
Inventor: HAYNES JOEL E
IPC: B67D1/00
Filed: 1990-06-25
Abstract: BEVERAGE DISPENSING NOZZLE AND METHOD OF MIXING LIQUIDS THEREWITH                          ABSTRACT    An improved nozzle   for beverage dispenser assures a high flow rate (for example, approximately 6 oz/sec or more), while maintaining a high quality beverage. An accumulator chamber reduces the turbulence of the incoming liquid to reduce carbonation loss. The nozzle converts high upstream liquid velocities to very low liquid velocities within the nozzle without an attendant high pressure loss across the nozzle. The nozzle is provided with a syrup accumulator chamber and a wide orifice syrup diverter which allow syrup to gently mix with   a first  portion   of   soda  water  substantially simultaneously during the dispense cycle and at substantially the same relative velocity. Thereafter the mixture of syrup and the first portion of soda water is mixed with a second portion of soda water.
Patent CA-2020161-A1 (CA)
Title: Electric lamp
Inventor: ESSERS WILHELMUS G
IPC: H01K1/46
Filed: 1990-06-29
Abstract: PHN 13.011                                          8-11-1989 ABSTRACT: Electric lamp.     The electric lamp has a lamp cap (6) with a contact member (9) at the base portion (8), a current supply conductor (4, 5) being passed to the exterior through said contact member. The current supply conductor (4, 5) is welded to said contact member (9) by a separately supplied solidified drop of essentially copper, nickel, copper/nickel, chromium/nickel/iron or aluminium containing 1 - 10 % by weight of a metal addition.
Patent CA-2020732-A1 (CA)
Title: Germidical composition
Inventor: FUNATSU RYOJI
IPC: A01N43/80
Filed: 1990-07-09
Abstract: GERMICIDAL COMPOSITION     Abstract A germicidal composition is disclosed which comprises a solvent containing at least 50 % by weight of a stabilizing liquid selected from 3-methyl-3-methoxybutyl alcohol and ethylene glycol diacetate, and an isothiazolone compound dissolved in the solvent.
Patent CA-2021391-A1 (CA)
Title: Compensating ring for a down hole hammer
Inventor: ELSBY JOHN
IPC: E21B4/06
Filed: 1990-07-17
Abstract: The present invention relates to a sacrificial compensating ring for a down hole hammer having an outer sleeve, a drive pub and a drill bit, wherein the sacrificial compensating ring has an outer diameter greater than that of the outer sleeve and substantially the same as that of the drill bit and the sacrificial compensating ring being located between the outer sleeve and the drive sub.
Patent CA-2022599-A1 (CA)
Inventor: MARSCHIK DAVID
IPC: H02H7/04
Filed: 1990-08-02
Abstract: ABSTRACT OF THE INVENTION         A self contained, self charging automatic hydraulic activation mechanism (AHAM) for a superconducting energy magnetic storage (SMES) system is disclosed.  The AHAM is operatively coupled to arc activated switches disposed across a superconducting coil to automatically close the switches upon a coolant dump.          The arc activated switches are also self actuating and close in response to arcing across the switch contacts or across spark gaps provided on the switches.
Patent CA-2023378-A1 (CA)
Title: Carbon-containing black glass monoliths
Inventor: LEUNG ROGER Y
IPC: C04B35/00
Filed: 1990-08-16
Abstract: ABSTRACT OF THE INVENTION           Carbon-containing black glass compositions of matter having the empirical formula SiCxOy in which x ranges from about 0.5 to about 2.0, and y ranges from about 0.5 to about 3.0, wherein the carbon content of the black glass ranges from about 10% to 40% by weight, are prepared by pyrolysis of a cyclosiloxane polymer in a non-oxidizing atmosphere at a temperature from  bout 750°C to about 1400°C.
Patent CA-2023908-A1 (CA)
Inventor: HASHIMOTO KENJI
IPC: B26B21/00
Filed: 1990-08-23
Abstract: HAIR TREATING IMPLEMENT     Abstract of the Disclosure A hair treating implement having an electrical heating wire, a support which tensely supports the heating wire and a hand grip which is connected to the support.  Electrical power is supplied to the heating wire, and a hair is cut by the heating wire heated by the electrical power.
Patent CA-2023960-A1 (CA)
Inventor: OGAWA HIROSHI
IPC: G11B7/00
Filed: 1990-08-24
Abstract: An optical disc recording apparatus for recording information signals on an optical disc having an optical recording medium with a larger thermal time constant, such as an organic dyestuff base material, by irradiating the disc with a recording light modulated by signals produced by eight fourteen modulation of information signals, is disclosed. The apparatus includes a recording pulse forming unit for forming recording pulses from the eight fourteen modulated signals, which recording pulses are of pulse widths shorter than the eight fourteen modulated signals by a pulse width corresponding to the elongation from the regular length of a pit formed on the recording medium on the basis of the eight fourteen modulated signals, and an optical head supplied with the recording pulses formed by the pulse forming unit for producing the light which has been eight pulse width modulated by the recording pulses.
Patent CA-2024502-A1 (CA)
Title: Dosage form for administering oral hypoglycemic glipizide
Inventor: KUCZYNSKI ANTHONY L
IPC: A61K47/38
Filed: 1990-08-31
Abstract: A dosage form is disclosed comprising the antidiabetic drug glipizide for administering to a patient in need of glipkide therapy.
Patent CA-2027723-A1 (CA)
Inventor: BONFILS ARMELLE
IPC: A61K38/00
Filed: 1990-10-16
Abstract: La présente invention concerne un usage des glycoprotéines extraites de bactéries gram(-) pour la fabrication de compositions cosmétiques ou dermatologiques stimulant la pousse des cheveux. L'invention concerne en outre des compositions cosmétiques ou dermatologiques renfermant ces glycoprotéines.
Patent CA-2027759-A1 (CA)
Title: Low noise wallbox for sootblower
Inventor: ROEHRS EUGENE W
IPC: F22B37/48
Filed: 1990-10-16
Abstract: ABSTRACT OF THE INVENTION           A sootblower wallbox assembly for decreasing noise emissions during the cleaning of a heat exchanger apparatus.          In particular,  the invention relates to a wallbox assembly containing a number of reverberant chambers exhibiting varying attenuation  characteristics.   When  a  cleaning  lance  is extended  centrally  through  the wallbox  assembly,  a baffle portion of each chamber is in close fit relation with the exterior surface of the lance.  Each reverberant chamber has a different  axial  length  and  therefore  exhibits  a  different frequency range where it achieves its best sound attenuation.          The wallbox assembly can also be provided with control systems to  prevent  combustion  products  from  escaping  the  heat exchanger through the assembly.
Patent CA-2029900-A1 (CA)
Inventor: HYDUKE NICHOLAS
IPC: D04G5/00
Filed: 1990-03-21
Abstract: Attache avec noeud comportant : (a) un cordon continu allant d'un point de traction à un autre; (b) le noeud exécuté dans le cordon qui est d'abord un demi-noeud à deux sous-boucles égales joignant les deux points de traction; (c) le prochain noeud exécuté sur le cordon qui est un noeud à ruban à boucle double où le milieu du cordon se trouve essentiellement au centre du noeud et le sommet de chaque boucle, aux points correspondant au premier et au troisième quarts de la boucle continue d'origine.
Patent CA-2033707-A1 (CA)
Title: Dual chamber volatilization system
Inventor: COLLETTE JERRY R
IPC: F23G7/00
Filed: 1991-01-07
Abstract: ABSTRACT OF THE DISCLOSURE A system for removing volatilizable organic contaminants from solid materials has a primary volatilizer and a secondary volatilizer positioned in series.   A charging system con-tinuously loads solid materials which have been blended to contain a predetermined concentration of contaminants into the primary  volatilizer.   A portion  of  the  contaminants  are volatilized in the primary volatilizer.  The solid materials and the  volatilized  contaminants  are  transferred  to  the secondary volatilizer where the volatilized contaminants are burned to provide heat for help in volatilizing the remainder of the contaminants.  The solid material   which   is   now decontaminated is quenched.  The gases are treated to convert the remaining volatilized contaminants to harmless gases and water vapor.  Particulate material is removed from the gases. Nitrogen oxides and sulphur are also converted to harmless forms.
Patent CA-2034731-A1 (CA)
Inventor: FUNK HARALD F
IPC: C10J3/02
Filed: 1991-01-22
Abstract: ABSTRACT    A process  for converting solid waste into  a synthesis  suitable  for  producing  liquid  fuel, comprising (a)  partially oxidizing and combusting solid waste material in a closed combustion zone at a temperature of  800-1000 C.  and at  a pressure below ambient to produce combustion gases by introducing into the combustion zone a gaseous oxidant comprising oxygen having a purity of at least 95% by volume and carbon dioxide in an oxygen to carbon dioxide ratio,  by volume, of about 50:50,  (b) conducting the combustion gases,  oxygen and carbon  dioxide  through the  solid waste  material;  (c)  withdrawing  a  producer  gas comprising the combustion gases and any unreacted oxygen and carbon dioxide;  (d)  removing particulate matter from the producer gas;  (e)  separating carbon dioxide from the producer gas and recycling a portion of the separated carbon dioxide to the combustion zone; (f)  separating  the  less  volatile,  condensable components of the carbon dioxide-free producer gas, from the more volatile, non-condensable synthesis gas components thereof, and  (g)  compressing the producer gas at some time prior to the completion step (e).  In a preferred embodiment,  the more volatile components and at least a portion of the separated carbon dioxide from step (e) are admixed and the resulting admixed gas mixture is reacted to form methanol.  Preferably, the less volatile components are converted by chemical reaction to hydrogen and the hydrogen is recycled into admixture with the producer has at some time prior to the commencement of step (e).
Patent CA-2036544-A1 (CA)
Title: Ultraviolet light curing apparatus and process
Inventor: GOFF JOHN
IPC: B05D3/06
Filed: 1991-02-18
Abstract: PATENT     ABSTRACT A process and apparatus for curing an ultraviolet light curable material deposited on a substrate.  A signal representing a parameter of the curing process is produced.  The substrate is positioned to receive ultraviolet light from a source. A characteristic of the ultraviolet light is selected from at least two non-zero values based on the curing process parameter signal and the substrate is exposed to the selected ultraviolet light.
Patent CA-2036933-A1 (CA)
Title: Heat resistant thermoplastic polymer blends
Inventor: HENTON DAVID E
IPC: C08L75/06
Filed: 1991-02-22
Abstract: ABSTRACT     Polymer blend compositions having an advantageous combination of low temperature toughness, solvent resistance, scratch resistance, paintability and elevated temperature resistance comprise from 20 to 65 weight percent of a rubber modified monovinylidene aromatic/ethylenically unsaturated nitrile/N-arylmaleimide copolymer and from 35 to 80 weight percent of certain selected polyester-based elastomeric thermoplastic polyurethane ingredients.  The resulting polymer blend compositions are especially well suited for use in the preparation of molded articles or thermoformed sheet materials intended for use in relatively low temperature environments including, for example, in various motor vehicle and/or recreational vehicle applications, as freezer and refrigerator liners, snow removal equipment housings or accessories.     37,909-F
Patent CA-2038615-A1 (CA)
Inventor: AKATSU MASAMICHI
IPC: D01F6/76
Filed: 1991-03-19
Abstract: Disclosed herein are poly(phenylene sulfide) fibers having a tensile strength of at least 3.5 g/d, a knot tenacity of at least 2 g/d, a loop tenacity of at least 3.5 g/d, the number of abrasion cycles until breaking in a flexing abrasion test of at least 3,000 times, and the number of repeated flexings until breaking in a flexural fatigue test of at least 150 times.  A process for the production of poly(phenylene sulfide) fibers, which comprises melt-spinning a poly(phenylene sulfide), stretching the resultant unstretched filaments at a draw ratio of 2:1 to 7:1 within a temperature range of 80-260°C, and heat-treating the stretched filaments for 0.1-30 seconds under conditions of a take-up ratio of 0.8:1 to 1.35:1 in a dry heat atmosphere exceeding 285°C, but not exceeding 385°C, is also disclosed.
Patent CA-2039019-A1 (CA)
Title: Controlled atmosphere package for fruit
Inventor: COLUCCI MICHAEL J
IPC: B65D85/00
Filed: 1991-03-25
Abstract: ABSTRACT        A controlled atmosphere package for maintaining the freshness and saleability of fruits and vegetables, including a lid made from a selectively permeable, paper-based lidding stock.     39,014F
Patent CA-2039217-A1 (CA)
Title: Polyurethane foams blown only with water
Inventor: MOTTE PHILIPPE
IPC: C08G18/66
Filed: 1991-03-27
Abstract: POLYURETHANE FOAMS BLOWN ONLY WITH WATER                 Abstract of the Disclosure A novel polyurethane resin foam composition is provided which is only water-blown and requires no chlorofluorocarbon or other auxiliary blowing agents, yet suffers little or no degradation in physical properties even at reduced isocyanate indexes. The formulation includes a relatively low molecular weight polyethylene glycol along with the conventional polyol to make a blend for the polyol component. The molecular weight range of the polyethylene glycol is from about 200 to about 600. The lower molecular weight polyethylene glycol may range from about 2 to about 10 parts by weight of the polyol, based on the total polyurethane foam composition.
Patent CA-2040744-A1 (CA)
Inventor: COLIJN JEROEN
IPC: C23C4/08
Filed: 1991-04-18
Abstract: Process for the preparation of a substantially homogeneous alpha phase copper-nickel-tin alloy comprising copper and 4-18% by weight of nickel and 3-13% by weight of tin, comprising atomizing a molten alloy having the before-indicated composition and collecting atomized particles on a collecting surface in such a way that solid collected material is obtained having a temperature, of at least 700 °C, followed by quick cooling of the collected material to a temperature below 300 °C.      The alloy thus obtained may be hardened, preferably after shaping, by spinodal decomposition.
Patent CA-2041048-A1 (CA)
Title: Radial tires
Inventor: KAWAMURA KAZUHIKO
IPC: B60C9/18
Filed: 1991-04-23
Abstract: ABSTRACT OF THE DISCLOSURE       A  radial tire is disclosed, comprising a carcass layer having plurality of cords aligned in a radial direction that extend from the treated portion via the sidewall portion to the bead core in each member of a pair of bead portions around which it is folded or turned up from the inside to the outside of the tire and fixed in position, a breaker positioned radially outward of said carcass layer, and a band that is positioned radially outward of said breaker and radially inward of the annular tread, wherein:          (A) the breaker is formed from at least two cut breaker plies including cords comprising aromatic polyamide fibers, wholly aromatic polyester fibers, polyvinyl alcohol fibers having a strength of at least 15 g/d, carbon fibers or glass fibers, each cord forming an angle of from 10 to 30° with the circumferential direction of the tire, and the cords, in each breaker ply being positioned to cross the cords in an adjacent ply; and (B) the band has such a structure that a ribbon made of one or more composite cords being aligned parallel to one another is wound in a continuous spiral form, said composite cords having a strength of not more than 2.5 g/d at 3% extension and an extension of not more than 8% upon application of a strength of 6 g/d, and being prepared by twisting high-modulus filaments and low-modulus filaments into two cords which then are back-twisted together, and each of said cords forming an angle of from 0 to 3° with the circumferential direction of the tire.