baber/WOPTO huggingface dataset:
Patent CA-1290085-C (CA)
Title: Substitute for amino and phenolic resins
Inventor: MARKESSINI EFTHALIA V
IPC: C08L61/20
Filed: 1987-06-05
Granted: 1991-10-01
Abstract: Abstract A substitute for amino and phenolic resins is disclosed. It is used in the polycondensation of such resins based on formaldehyde for bonding water penetrable cellulosic particles. The substitute comprises an aqueous solution of a) either at least one aldehyde together with at least one amide and/or together with at least one phenol, or a non-resinous condensation product of formaldehyde and urea, and b) a sugar or a sugar derivative or their by-products or a starch or its degradation products or a mixture thereof, and/or c) a raw and/or treated lignosulfonate.          This substitute also reduces the free formalde-hyde of the resulting board without impairing the other properties thereof.
Patent CA-1282711-C (CA)
Title: Optimal shadow omniphonic microphone and loudspeaker system
Inventor: WEHNER RAYMOND
IPC: H04R5/02
Filed: 1987-07-14
Granted: 1991-04-09
Abstract: ABSTRACT         The invention comprises a microphone and loud speaker system in which the components include a cylinder having a centre section and an end section at each end of the  centre  section  and  an  axial  alignment  with  one another.   The adjacent ends of the centre and end sec-tions are truncated at an angle of 35° 16' and the long-itudinal axis of the planes of the ellipses thus formed are rotated through 45°.  These planes are substantially isomorphic to the tympanic membrane of the human hearing structure  and represent half  the dihedral angle of a regular tetrahedron.  All of the loudspeaker transducers are shielded by opiculae which are cylindrical structures also truncated at one end at half the dihedral angle of a regular tetrahedron, namely, 35° 16', and have the planes thereof rotated 45° to the horizontal.
Patent CA-1277278-C (CA)
Title: Storing installation, primarily for an endless conveyor belt travelling helically in a number of turns laid upon one another in a pile
Inventor: OLSSON LENNART
IPC: B65G15/02
Filed: 1987-07-23
Granted: 1990-12-04
Abstract: ABSTRACT      A storing installation comprises two endless chains supporting a load for the conveyance thereof along a conveyance path and travelling in opposition to said conveyance path in a return path having more tightly curved portions than said conveyance path, to form closed chain paths, and a frame for supporting said chains via at least one series of rolling ele-ments arranged between said frame and the respective chain. Each chain comprises links overlapping one another in such a manner that the chain and the frame form an essentially closed channel for the rolling elements throughout the tighter return path.     Fig. 4 is elected for publication
Patent CA-1305434-C (CA)
Title: Method of chromatographic separation
Inventor: ANDO MASAO
IPC: B01D15/00
Filed: 1987-12-22
Granted: 1992-07-21
Abstract: Abstract of the Disclosure A  chromatographic  separation  process  employing fewer beds packed with an adsorbent,  while enabling separation of feedstock fluid, containing a plurality of components which have different degrees of affinity for the adsorbent, into constituent fractions which are withdrawn  separately. According to at least one preferred embodiment,  a step of supplying feedstock fluid to the simplified separation apparatus is prece-ded and followed by a step of circulating the fluid through the apparatus, a cycle of supply - desorbing -circulation being carried out repeatedly.
Patent CA-1332646-C (CA)
Inventor: OYAIZU YOSHIJIRO
IPC: C08G18/32
Filed: 1988-02-15
Granted: 1994-10-18
Abstract: ABSTRACT OF THE DISCLOSURE      A process for producing polyurea resin in which an amine compound containing aromatic polyamine and specific aminobenzoate derivative and polyisocyanate are reacted. The amine compound has the formula:                      wherein R represents n-valent polyalkylene, polyalkylene ether, or polyalkylene polyester group with an average molecular weight of 200 or more, provided that the group may contain unsaturated bond; A represents an oxygen atom or an imino group, m is an integer of 1 to 3, and n is an integer of 2 to 4.  The polyurea resin is decreased in temperature dependence and improved in hardness, strength, toughness, and heat resistance.
Patent CA-1277838-C (CA)
Title: Scissors sharpener
Inventor: PETROFF CVETAN
IPC: B24D15/06
Filed: 1988-04-05
Granted: 1990-12-18
Abstract: ABSTRACT                     "SCISSORS SHARPENER"       A  scissors  sharpener  including  a  pair  of  elongate sharpening elements relatively arranged so as to define a vee shaped  sharpening  recess  between  them.   Each  sharpening element forms a respective one of two sides of the recess and each side has a longitudinal extent which is no less than the length of the scissor cutting edges to be sharpened.  At least one of the sharpening elements is mounted so as to be movable laterally away from the  other  element,  and  resilient means bears  against  the  movable  element  so  as  to  resist  the aforementioned movement.   The  sharpening  elements  overlie  a base plate and an extension of that plate forms a platform against which the handle portion of scissors can rest during the sharpening operation.  In use, scissors are located on the sharpener with  the  closed  blades  over  the  recess  and  the cutting   edges   extending   generally   in   the   longitudinal direction  of  the  recess  sides.   Sharpening  is  effected  by moving the closed blades sidewards through the recess towards the underlying base plate so that each cutting edge engages and is treated by a respective sharpening element during that movement.
Patent CA-1278159-C (CA)
Inventor: LEBISCH HELMUT
IPC: B29C39/02
Filed: 1988-05-04
Granted: 1990-12-27
Abstract: ABSTRACT OF THE DISCLOSURE A method and apparatus for manufacturing an otoplastic.  An otoplastic is manufactured directly in the ear of a hearing-impaired person in that a deformable envelope is pulled over a die or over a shell or over an overlayed over-shell.  This apparatus is then supplied with flowing otoplastic material between the die and the envelope, being supplied therewith in the ear.  The envelope expands and assumes the shape of the auditory canal.  After hardening or curing of the otoplastic material in the ear of the hearing-impaired person, the envelope and the die are removed and a module of either an in-the-ear or of a behind-the-ear hearing aid is integrated therewith.
Patent CA-1284586-C (CA)
Inventor: ALDERSON EDGAR D
IPC: F02C6/00
Filed: 1988-05-05
Granted: 1991-06-04
Abstract: ABSTRACT OF THE DISCLOSURE      The use of hot gas generators which produce corro-sive or abrasive products of combustion have precluded the use of gas turbines in a direct flow path of the combustion products.  It is preferable to utilize non-contact gas to gas heat exchangers in order to transfer heat from a hot gas stream to a working fluid. A first heat exchanger connected to a gas furnace is used to raise the temperature of an air turbine inlet gas.  A second heat exchanger is used to raise the temperature (prewarm) of compressor discharge air to the air turbine air inlet, the second heat exchanger connected to the air turbine exhaust.  A third heat exchanger preheats the air input into a furnace.
Patent CA-1305566-C (CA)
Title: Procede et dispositif d'imagerie tridimensionnelle a partir de mesures bidimensionnelles de l'attenuation d'un rayonnement
Inventor: GRANGEAT PIERRE
IPC: A61B6/03
Filed: 1988-05-20
Granted: 1992-07-21
Abstract: Appareil et procédé d'imagerie tridimensionnelle à partir de mesures bidimensionelles de l'atténuation d'un rayonnement. Un faisceau conique tourne autour de l'objet (11) à examiner. Un réseau plan (12) de capteur mesure l'atténuation du rayonnement. Quand plusieurs mesures ont été faites, on peut obtenir des grandeurs liées à la dérivée de la transformée de Radon de la fonction décrivant la contribution locale à l'atténuation. L'inversion de cette quantité fournit la contribution locale à l'atténuation f(M) en tout point (M) d'un maillage de représentation de l'objet (11). On décrit les algorithmes numériques à mettre en oeuvre, les conditions que le maillage et la trajectoire de la source (10) satisfont, et les techniques d'interpolation employées. Application à l'imagerie médicale et aux contrôles non destructifs. B 9279.3 JCI
Patent CA-1327060-C (CA)
Title: Elongate gas generator for inflating vehicle inflatable restraint cushions
Inventor: LAURITZEN DONALD R
IPC: B60R21/26
Filed: 1988-07-22
Granted: 1994-02-15
Abstract: Abstract of Disclosure A gas generator which has a high volume combustion chamber for increased gas production and which is sized small enough to be confined within a vehicle steering wheel circumference with a minimum impact on the aesthetics of the steering wheel and general interior of the vehicle for inflating a vehicle inflatable restraint cushion in the event of an accident.  The inflater is generally cylindrical in shape and includes a centrally disposed combustion chamber flanked by a pair of diffuser chambers.
Patent CA-1317755-C (CA)
Title: Stabilizing clayey formations
Inventor: HIMES RONALD E
IPC: C09K8/035
Filed: 1988-09-09
Granted: 1993-05-18
Abstract: ABSTRACT OF THE DISCLOSURE        A process for treating clayey geological formations to prevent, inhibit or reduce swelling or migrating clay particles in a formation by treating the formation with an effective amount of a quaternized oligomer which comprises a methyl quaternary amine containing an average of from about 3 to about 6 moles of epihalohydrin.  The treatment is effected by introducing the oligomer into the formation in an aqueous fluid which can comprise brine, salt solutions, acid solutions, gelled fluids and the like.
Patent CA-1321825-C (CA)
Title: Process and device for the ultrasonic measurement of the wall thickness of a part of synthetic plastic material
Inventor: STUDER URS P
IPC: G01B17/02
Filed: 1988-10-18
Granted: 1993-08-31
Abstract: TITLE OF THE INVENTION     PROCESS AND DEVICE FOR THE ULTRASONIC MEASUREMENT    OF THE WALL THICKNESS OF A PART OF SYNTHETIC       PLASTICS MATERIAL               ABSTRACT OF THE DISCLOSURE            Measurement of the thickness of a  synthetics  plastics layer is  effected  at  a  point  between  an  extruder and a cooling trough where the object to be measured is freestanding.  Two  diametrically  opposite  ultrasonic measuring heads are given an oscillating rotary movement through 180° about the  object  to  be  measured.   The measuring  heads  comprise  an  ultrasonic  source in a measurement chamber opening towards the  object  to  be measured  which  chamber  is continuously supplied with water via a flexible conduit so that a water column  is formed  between the ultrasonic source and the object to be measured.  As a result of this arrangement the  wall thickness  of  the synthetic plastics layer leaving the extruder can be  measured  at  a  position  where  this synthetic  plastics  layer  still  has  a high, uniform temperature and  thus  there  is  within  the  layer  a uniformly  definable velocity of sound.  As a result of full electronic  detection  and  evaluation   of   the measurement  values  according to a multiplex system, a rapid measurement with a  high  density  of  points  of measurement is possible.
Patent CA-1281852-C (CA)
Title: Portable toilet with vent for flush water supply tank
Inventor: CAMERON DAVID B
IPC: E03D5/01
Filed: 1988-10-18
Granted: 1991-03-26
Abstract: ABSTRACT A portable toilet having a fill cap covering the fill opening for a flush water tank. The cap includes a lid with an air vent opening and a seal member captivated in a cage extending downwardly from the lid into the tank, the cap being removably mounted on a tube for filling the  tank with water.  An air path  from the atmosphere to  tank is defined by  the lid vent opening and  an annulus around the  seal.  The cage is  inserted into the tube and should the water splash in the tube the seal is  forced upwardly and against the vent opening to prevent water from escaping.
Patent CA-1295358-C (CA)
Title: Contactor and/or circuit breaker
Inventor: LEMMER HELMUT
IPC: H01H71/16
Filed: 1988-11-07
Granted: 1992-02-04
Abstract: ABSTRACT OF THE DISCLOSURE    A  contactor  which  includes a contact  bridge holder  for opening  and closing a first plurality of contacts of an electric circuit,  a  second  plurality of additional  contacts  for  each electrical  phase and a coil connection of an associated magnetic system,  respectively;  the  magnetic  system  including  thermo trippers  and  magnetic trippers for  selectively  operating  the first plurality of contacts, three actuation members each mounted for  pivoting movement,  the first of the actuation members being connected  to a slider which is in turn connected to  the  second plurality   of  contacts,   the  second  actuation  member  being operative  by the magnetic tripper,  the third  actuation  member being  operative  by the thermal tripper,  the first  and  second actuation  members  having  end portions which  are  normally  in engagement  when  the  trippers are not actuated and  the  second plurality  of contacts are open,  and the normally  engaging  end portions  of the first and second actuating members are moved out of  engagement  upon  the operation of  either  of  the  trippers resulting  in  operation  of the slider and the  opening  of  the second plurality of contacts.
Patent CA-1334224-C (CA)
Inventor: LAY GUSTAV
IPC: C08L101/00
Filed: 1989-01-27
Granted: 1995-01-31
Abstract: A blended polymeric material as obtained from a melt comprising a water-containing destructurized starch and at least one essentially water-insoluble synthetic thermoplastic polymer. Articles prepared from this blended polymeric material have much improved dimensional stability.
Patent CA-1308100-C (CA)
Title: Processes and intermediates
Inventor: KOLB MICHAEL
IPC: C07F7/18
Filed: 1989-01-30
Granted: 1992-09-29
Abstract: ABSTRACT This invention relates to the novel processes for the preparation of a 16-methoxy-16-methyl prostaglandin E1 deriva-tive and to the novel intermediates useful therefor.
Patent CA-1311236-C (CA)
Title: Supercritical separation process for complex organic mixtures
Inventor: CHUM HELENA L
IPC: B01D11/04
Filed: 1989-02-03
Granted: 1992-12-08
Abstract: ABSTRACT     A process is disclosed for separating low molecular weight components from complex aqueous organic mixtures.  The process includes preparing a separation solution of supercritical carbon dioxide with an effective amount of an entrainer to modify the solvation power of the supercritical carbon dioxide and extract preselected low molecular weight components.  The separation solution is maintained at a temperature of at least about 70° C and a pressure of at least about 1,500 psi. The separation solution is then contacted with the organic mixtures while maintaining the temperature and pressure as above until the mixtures and solution reach equilibrium to extract the preselected low molecular weight components from the organic mixtures.          Finally, the entrainer/extracted components portion of the equilibrium mixture is isolated from the separation solution.
Patent CA-1339914-C (CA)
Title: Method of creating a high flux of activated species for reaction with a remotely located substrate
Inventor: DOEHLER JOACHIM
IPC: H01L21/205
Filed: 1989-04-12
Granted: 1998-06-16
Abstract: A method of forming a high flux of activated species (34), such as ions, of an energy transferring gas (A) by employing a substantial pressure differential between the pressure adjacent the aperture (26) in a first conduit (24) through which the energy transferring gas is introduced into a vacuumized enclosure (12) and the background pressure which exists in said enclosure.  In one embodiment, the flow rate of the energy transferring gas flowing through said first conduit, when taken in conjunction with said pressure differential, causes the high flux of activated species of the energy transferring gas to collide with a precursor deposition/etchant gas, remotely introduced into the enclosure through a second conduit (60), for forming deposition/etchant species (65) therefrom.  In an alternate embodiment, the pressure differential causes those activated species, themselves, to be either deposited upon or etched away from the surface of a remotely ppsitioned substrate (50).
Patent CA-1333338-C (CA)
Inventor: MOORE WILLIAM P
IPC: C05G3/00
Filed: 1989-04-12
Granted: 1994-12-06
Abstract: A one-step method of preparing coated particulate plant nutrients wherein a polyfunctional coupling agent is applied to a mobile mass of plant nutrient particles con-taining functional groups which are chemically reactive with the functional groups of the coupling agent, while simultan-eously applying a second reactive material containing func-tional groups also reactive with the functional groups of the coupling agent, maintaining the mobile mass at a temper-ature between 30°C and 200°C until a strong, water-insoluble particle.  The product of the one-step method is a controlled-release plant nutrient having excellent attrition resistance.
Patent CA-1295372-C (CA)
Title: Wireless communication system using current formed underground vertical plane polarized antennas
Inventor: LOSEE FERRIL A
IPC: H01Q1/04
Filed: 1989-04-21
Granted: 1992-02-04
Abstract: ABSTRACT OF THE DISCLOSURE (U) A  wireless  communication  system  and  method  for employing underground  or  low profile  surface deployed current drivers for inducing ground currents in the earth which  define  loop  antennas  for  sending  and  receiving electromagnetic signals propagated through the atmosphere over a wide bandwidth.  The system uses a current driver whose  impedance  is  adjusted  so  that  it  matches  the impedance  of  a  transmitter/receiver  connected thereto.          The current driver is capacitively coupled to the sur-rounding ground so that the current driver and the earth effectively  function  together  as  a  vertical  plane polarized antenna which propagates a vertically polarized electromagnetic signal.  The system can be operated using either a single current driver or, where increased signal gain is desired, using an array of current drivers that are  spaced  in  parallel.   A  unidirectional  vertically polarized signal may be produced by shortening the length of one current driver conductor with respect to the other arm.  Unwanted cancellation currents may be substantially eliminated from the region surrounding the current driver by positioning low conductivity materials so as to extend into the flow paths of the cancellation currents.
Patent CA-1288838-C (CA)
Title: Metering pulse generator
Inventor: STROBEL DONALD H
IPC: G01F15/06
Filed: 1989-05-02
Granted: 1991-09-10
Abstract: METERING PULSE GENERATOR                  ABSTRACT OF THE DISCLOSURE       In a metering pulse generator, a metering element engages a spring member to effect a gradual bending movement in one direction followed by a rapid return movement during which a pulse signal is developed by a piezoelectric material on the spring member.  Energy is absorbed during each such rapid return movement of the spring member to provide damping, inhibit oscillations and effect reliable generation of a single pulse signal which is applied to an amplifier for transmission to a monitoring station.
Patent CA-1329752-C (CA)
Inventor: KREH ROBERT P
IPC: C23G1/24
Filed: 1989-06-09
Granted: 1994-05-24
Abstract: ABSTRACT    A method of removing iron contaminants in an aqueous system by introducing and maintaining within the system at least one ortho dihydroxyaromatic compound having at least one electron withdrawing group pendant from the aromatic ring and, further, a method of inhibiting calcium scale formation in the presence of iron contaminants by utilizing at least one dehydroxyaromatic compound in combination with calcium scale inhibitors.
Patent CA-1322539-C (CA)
Inventor: BATTIFORA HECTOR A
IPC: G01N1/36
Filed: 1989-06-20
Granted: 1993-09-28
Abstract: ABSTRACT   A process for producing a slide bearing a spaced array of specimen fragments which comprises (i)  cutting at least one specimen into a plurality of narrow strips; (ii)  separating the plurality into groups of specimen strips; (iii)  separately positioning strips from the groups in parallel grooves in a mold; (iv)  embedding the strips in the mold in a first embedding medium to provide a structure comprising a base member having opposed first and second surfaces, the first surface being substantially planar; the second surface having ridges containing a specimen strip extending therefrom; (v) forming a stack of the structures with the terminal surface of the ridges of an upper structure abutting the substantially planar first surface of the next lower structure; the spaces between the ridges defining channels for receipt of a fluid;          (vi)  embedding the stack in a second embedding medium to form a block having a spaced array of parallel specimen strips embedded therein; the strips being so arranged that a section of the block includes a spaced array of cross-sections of each of the embedded specimen strips; (vii)  dividing the block into sections each containing a spaced array of cross-sections of each of the embedded specimen strips; (viii)  mounting at least one of such block sections on a slide.
Patent CA-1341202-C (CA)
Title: Long chain aliphatic hydrocarbyl amine additives having an oxy-carbonyl connecting group
Inventor: BUCKLEY THOMAS F III
IPC: C10L1/22
Filed: 1989-09-07
Granted: 2001-03-06
Abstract: Long-chain aliphatic hydrocarbyl polyamino additives which comprise a long-chain aliphatic hydrocarbyl moiety, a polyamino moiety and an oxy-carbonyl connecting group which joins the aliphatic hydrocarbyl moiety and the polyamino moiety are useful as dispersants in fuel compositions and in lubricating oil compositions.
Patent CA-1328340-C (CA)
Inventor: SCARLETT JOHN T
IPC: E04C3/14
Filed: 1989-09-11
Granted: 1994-04-12
Abstract: ABSTRACT      The glued structural joint for the beam of the present invention comprises a tongue formed on a longitudinal edge of a web member of the beam wherein the tongue comprises a generally bulbous or outwardly bowed profile extending from the edge to shoulders recessed into opposed faces of the web, and a groove formed on a longitudinal face of a flange member of the beam wherein the groove comprises a profile with outwardly bowed side walls configured to mate with the bulbous profile of  the tongue.    The  joint lockingly connects the flange and web members of a wooden I-beam to inhibit disconnection of the joint during curing of the joint adhesive.  Dimensional lumber or composite wooden members may be used.
Patent CA-1323930-C (CA)
Inventor: SMITH DAVID W
IPC: G06F17/50
Filed: 1989-09-14
Granted: 1993-11-02
Abstract: Abstract of the Disclosure Simulation results enhancement software method and system are disclosed.  A partial simulation results data base that is produced by an interactive simulator is software enhanced, using full elemental characterizations from the modeling subsystem thereof, to produce a simulation completion results data base.  The simulation completion results data base is suitable for post-simulation processing to enable the viewing of plotting of any dependent variable, or transform thereof, available from the modeling subsystem.  A simulation-produced interim results data base provides, in association with a software co-processor, the capability of interrupting the simulation upon the occurrence of a user-defined event.  Use of the enhancement software is illustrated in the context of analog circuit simulation, whereby voltage, current and power waveforms are made available to the user without unduly burdening the computer system on which the simulation software is executed.