baber/WOPTO huggingface dataset:
Patent CA-2007568-A1 (CA)
Title: Procede de preparation de polyamides semi-aromatiques comprenant des restes d'acide(s) dicarboxylique(s) aromatiques(s) et d'alkylpentamethylenediamine
IPC: C08G69/26
Filed: 1990-01-11
Abstract: L'invention concerne un procédé de préparation de (co)polyamides semi-aromatiques amorphes ou semi-cristallins à partir d'un réactif acide comprenant au moins un acide dicarboxylique aromatique ayant de 8 à 18 atomes de carbone, d'un réactif aminé comprenant majoritairement une alkyl-pentaméthylenèdiamine et éventuellement d'un  catalyseur. Conformément à ce procédé, on polycondense les réactifs en opérant dans un système clos de type autoclave selon un protocole comprenant les étapes suivantes : une étape 1 de distillation de l'eau présente dans la masse réactionnelle sous  pression  autogène  constante.    Une  étape  2  de décompression jusqu'à pression atmosphérique et une étape 3 de finition, en veillant à ce que d'une part de l'eau soit ajoutée au départ dans la masse réactionnelle et d'autre part la distillation de l'étape 1 soit conduite dans des conditions  particulières  de  température  (température  de début de distillation T1 comprise entre 160°C et 190°C) et de pression autogène (comprise entre 0,5 et 1,2 MPa).  Grâce à ce procédé, les pertes en réactif aminé (par enchaînement dans les distillats et par cyclisation) sont significative-ment réduites.
Patent CA-2009847-A1 (CA)
Title: Process for the preparation of polyaluminium compounds
Inventor: KVANT MAGNUS
IPC: D21H19/38
Filed: 1990-02-12
Abstract: ABSTRACT The present invention relates to a process for the preparation of polyaluminium hydroxychloride complexes having the general formula Al(OH)xCly  in solution or in solid form and intended to be used as flocculants and coagulants at water purification, sludge dewatering, plant dewatering and paper production, whe-reby one reacts aluminium chloride in solution with aluminium hydroxide, or aluminiumoxide hydrates at a temperature of 120-170°C at an elevated pressure for 1.5-5 hrs, whereby the rela-tionship AlCl3:Al(OH)3 is thus adjusted that the relationship OH:Al in the resulting compound Al(OH)xCly becomes 0.5 to 1.5, preferably 0.8 to 1.2.
Patent CA-2011387-A1 (CA)
Title: Coating composition exhibiting improved resistance to environmental attack
Inventor: SAVIN RONALD R
IPC: C09D5/08
Filed: 1990-03-02
Abstract: ABSTRACT OF THE DISCLOSURE: A coating composition for the protection of substrates against environmental attack comprising, in weight percent based on the solvent-free weight of the composition, from about 8% to about 35% of at last one film forming polymer; from 0 to about 60% of a corrosion inhibiting agent such as metal chromates, metal phosphates, metal molybdates, particulate metallic zinc and/or particulate metallic aluminum; from 3% to about 6% of a plurality of grades of pyrogenic amorphous silicas having average particle sizes ranging from about 0.007 to about 0.04 micron; from about 15% to about 55% of at least one crystalline silica having an oil absorption value of less than 20 measured by ASTM Standard Test D281-84; and 0 to 35%, based on the total weight of the composition, of at least one solvent compatible with the polymer.  The compositions can be prepared in organic solvent-based, water-based, or solvent-free powder forms, and have utility as primer coatings for aircraft and aerospace vehicles, and for protection of metallic substrates against corrosion.
Patent CA-2011967-A1 (CA)
IPC: B41M1/40
Filed: 1990-03-12
Abstract: ABSTRACT OF THE DISCLOSURE     A method of non-overlap halftone-dot printing of colored original on the outer surface of a cylindrical container by dry off-set printing, in which a colored original is color-separated into three primary colors, i.e., cyan, magenta and yellow, change-to-halftone is effected to give an effect of contact screening with the same angle for the individual separated primary colors, and one pixel of print is expressed by three colors at most, i.e., one of the three primary colors, one of three secondary colors, i.e., cyan-magenta, magenta-yellow and yellow-cyan blend colors, and black (tertiary color).
Patent CA-2012246-A1 (CA)
Inventor: HUSAIN SIFARAT S
IPC: F01D5/30
Filed: 1990-03-15
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to a connection system for connecting a ring which carries aircraft propeller blades to a turbine which the ring surrounds.  Brackets extend between the ring and the turbine and accommodate thermal expansion of the turbine without significant deformation.
Patent CA-2012509-A1 (CA)
Title: Kneepad
Inventor: NIERHAUS WOLFGANG
IPC: A41D13/06
Filed: 1990-03-19
Abstract: TITLE OF THE INVENTION:                     KNEEPAD          ABSTRACT OF THE DISCLOSURE:    A  kneepad  having  a  lower,   substantially cylindrical portion for resting against the shinbone of a user, an upper partly spherical portion for resting against a kneecap of a user, and a retaining strap  connected  to  lateral  edges  of  the  lower portion for extending about a leg of a user.  The retaining strap is connected in the vicinity of a lower edge of the lower portion remote from the upper portion.  From the side, the upper portion has the shape of an arc.  The upper region of the upper portion, remote from the lower portion, is formed by folds that extend over approximately half of the arc.   The upper portion also has a lower region interposed between the upper region thereof and the lower portion.  This lower region has no folds and has essentially the same construction as the lower portion.
Patent CA-2015899-A1 (CA)
Title: Method for increasing linear bit density in magneto-optical storage media
Inventor: LEE NEVILLE K S
IPC: G11B7/135
Filed: 1990-05-02
Abstract: Abstract of the Disclosure An apparatus for storing and reading a magneto-optical disk has a slit shaped aperture located in an air-bearing slider which flies above the disk.  Domains of the disk are selected for storing or reading by a light beam.  The domains are reduced in size without losing inter-domain resolution by illuminating the disk with the portion of a focused laser beam incident on the disk through the slit, the slit width being less than the full beam width.  The slider preferably terminates a wedge-shaped cavity suspended above the medium a distance substantially less than the wavelength of the illuminating light; the thickness of the walls of the slit being substantially less than the wavelength of the illuminating light.
Patent CA-2016025-A1 (CA)
Title: Straightening vehicle frame
Inventor: BERGERON MARCEL J
IPC: B21D1/14
Filed: 1990-05-03
Abstract: ABSTRACT OF THE DISCLOSURE: A force applying structure is made to be fixed on the periphery of  a frame straightening bench for a vehicle for  simultaneously  pushing and  pulling  on  a  part of  the  vehicle.   The  structure  includes  an upstanding   post   rigidly  fixed  in  spaced   relationship   with   the straightening  bench.   A device is mounted on the post for pulling  on  a chain and pushing with a hydraulic cylinder.   The device comprises a base plate  vertically fixed on the post and partition plates mounted  edgewise on the bass plate for forming a horizontal and a vertical channel  forming a cross-shape recess.  A first hydraulic cylinder is secured in one of the channel  parallel to the base plate and has a piston projecting away  from the  intersection of the channels.   At the intersection of  the  channels adjacent  the  first cylinder  a pair of guide  member  having  a  partly circular contour extends inside the channels.   Anchor means are  provided on  the base plate and are adapted to anchor a chain which passes  over  a wheel mounted at the end of the piston of the first cylinder,  over one of the  guide  members and at least one pulley mounted across anyone  of  the channels.   A second hydraulic cylinder is removably fixed to extend  away from  one  of the channels.   When the second cylinder and the  chain  are simultaneously pushing and pulling on a part of the vehicle body,  or on a vehicle  wheel  for an alignment  correction,  the  desired  straightening result is obtained.
Patent CA-2017259-A1 (CA)
Inventor: MALHOTRA SHADI L
IPC: B32B7/02
Filed: 1990-05-22
Abstract: A transparent substrate material for receiving or containing an image and comprised of a supporting substrate base, an antistatic polymer layer coated on one or both sides of the substrate and comprised of hydrophilic cellulosiccomponents, and a toner receiving polymer layer contained on one or both sides of the antistatic layer, which polymer is comprised of hydrophobic cellulose ethers, hydrophobic cellulose esters, or mixtures thereof, and wherein the toner receiving layer contains adhesive components.
Patent CA-2018555-A1 (CA)
Title: Profiled sheathed wire for forming into an electric resistance welding
Inventor: BOULET D AURIA VINCENT S
IPC: B29L23/00
Filed: 1990-06-08
Abstract: ABSTRACT OF THE  DISCLOSURE A  wire-form  element  consists  of  at  least  one resistive wire  coated  with  a  thermoplastics  material. The coating features mechanical fixing parts one of which is designed to cooperate with the other fixing part of an adjacent identical wire-form element to be joined to it. The wire-form element is particularly intended for the manufacture of electric resistance welding inserts.   In the case of inserts intended for a welding sleeve for jointing  tubular  thermoplastics  material  parts  it  is preferably formed into a helical winding.  In the case of inserts  intended  for making  a branch connection to  a tubular plastics material part by making a hole therein it may be formed into a flat spiral.       Figure 1
Patent CA-2019636-A1 (CA)
Inventor: KIEZULAS MARGARET P
IPC: C08J7/046
Filed: 1990-06-22
Abstract: 0129h MEDICAL APPARATUS HAVING PROTECTIVE, LUBRICIOUS COATING               Abstract of the Disclosure -    A method for providing a medical apparatus with a protective, lubricious coating is described.  The method comprises providing a coating solution which contains a protective compound such as a urethane, a slip additive such as a siloxane, and optionally, a crosslinking agent for the protective compound such as a polyfunctional aziridine, coating the solution onto a surface of a medical apparatus and allowing the coating to set.  m e resulting surface coating is lubricious, tough and flexible.  The coating is well suited for use with materials used as components of balloon catheters.
Patent CA-2021759-A1 (CA)
Inventor: NIESSNER MANFRED
IPC: C02F1/50
Filed: 1990-07-23
Abstract: O.Z. 0050/41002 Abstract of the Disclosures: A process is described for the preparation of finely divided polymer powders by polymerizing water-soluble monomers in the aqueous phase of a water-in-oil emulsion in the presence of water-in-oil emulsifiers and polymerization initiators, removing the water from the resultant water-in-oil polymer suspen-sion  by  azeotropic  distillation,  and  isolating  the suspended,  finely divided polymer powder,  either the polymerization  of  the  water-soluble monomers  being carried out in the presence of from 0.1 to 10% by weight, based on the monomers employed in the polymerization, of protective colloids, or the protective colloids being added to the water-in-oil polymer suspension after the polymerization is complete. The polymerization is prefer-ably carried out in the presence of surfactant. The  finely divided pulverulent polymers are used as flocculants or thickeners for aqueous systems.
Patent CA-2022144-A1 (CA)
Inventor: GODARE WILLIAM L
IPC: E21B33/068
Filed: 1990-07-27
Abstract: A system for injecting chemicals into a geothermal well near the bottom of the well bore for optimum efficiency. The system includes a spool assembly with a master valve for control of the geothermal-flow and a secondary outlet formed of an angle to permit the chemical injection chamber to be lowered into the well.  The secondary outlet is attached to the main spool in such a way as to allow internal thermal expansion while permitting the chemical injection chamber to be fed by capillary tube to the bottom of the well bore. The chemical injection device includes an injection chamber through which the chemical  is disbursed and a  segmented sinker bar to provide the necessary weight to carry the chamber to the bottom of the well against the geothermal well flow.  An annular seal assembly in the spool prevents leaking  by  being  pressure  energized  by  the  geothermal production  fluid.   As  a  result,  production  can  continue during the chemical injection process.
Patent CA-2022537-A1 (CA)
Inventor: THIMON JACQUES
IPC: B65H23/32
Filed: 1990-08-02
Abstract: A  machine  for  helically  banding  the vertical side faces of a palletized load with a band of plastic  film whose width is  a fraction of the height of the load. The machine comprises a stand and a table which supports the load in a fixed position during the banding of the load and with which supply means and removal means for the load may be combined. A moveable carriage supports a reel of film having an axis with a generally vertical direction.  Means are provided for deviating in its own plane the band of film originating  from the  reel and for vertically offsetting the downstream delivered section of the band of film with respect to the reel.  The means are on the one hand carried by the carriage  at least substantially opposite the reel and on the other hand may be deformed during the banding operation between two  extreme  configurations corresponding  to  two separate extreme states.  An active one in which they ensure  the  deviation  and  the  maximum  vertical offsetting and an inactive one in which the deviation and offset are zero or minimal.  Means are provided for controlling  and  driving  the  deviating  and vertical-offsetting means  in order to  switch them from their active state to their inactive state,  or vice versa such that in a certain relative situation of  the  carriage  during  the  banding  operation, operation of the control and drive means results in the downstream delivered section of the band of film applied to the load being offset relatively in the vertical direction with respect to the reel of film.
Patent CA-2022649-A1 (CA)
Title: Steam turbine having applied novel erosion resistant surfaces and methods for applying these surfaces
Inventor: DUNMIRE JAMES C
IPC: F01D25/00
Filed: 1990-08-03
Abstract: Methods for providing erosian resistant surfaces to carbon steel turbine components are provided by this invention. The methods include welding a steel weldment comprising at least 12 wt.% Cr. on to a carbon steel steam turbine component at a welding speed of about 24 -52 inches, 61-132 cm, per minute in a nominal first pass thickness of less than about .1 inches, .25 cm. Preferred flux-cord-arc welding (FCAW) techniques are disclosed for vertical down, overhead, horizontal and flat surfacing positions.
Patent CA-2024126-A1 (CA)
Title: Evacuation or rescue device for a non-ambulatory person
Inventor: GRAF JORG W
IPC: A61G1/00
Filed: 1990-08-28
Abstract: ABSTRACT      An evacuation or rescue device for a bed-ridden or non-ambulatory person adapted to quickly secure the person to a movable underlying mattress or the like comprises two sheets deployable one from the head-end and one from the foot-end.          When deployed the head-end sheet meets the foot-end sheet over the persons chest or abdomen: the head-end sheet having an opening for the  head.   The  two  sheets. which are interconnected underneath the mattress. are then tightened downwardly over the long sides of the mattress by means of looped ropes pulled one from the head-end side and the other from the foot-end side.   The ropes are self cleating when tightened and quickly secure the person in readiness for rescue and evacuation by a single individual if necessary.
Patent CA-2024406-A1 (CA)
Inventor: IEMURA SHIGERU
IPC: G03G15/11
Filed: 1990-08-31
Abstract: In a developing device for electrostatic recording using a liquid developer, a first connector member firmly receive one end of a developer supply pipe and one end of a developer retrieval pipe, and a second connector member is firmly fitted in an opening of a developer storage tank for closing the same and firmly receives one end of pipes which open at opposite end to the inside of the developer storage tank,  The developer storage tank is movable it a direction to fit the first  and second connector members closely to-gether under pressure for interconnecting the pipes retained by the first connector member and the corresponding pipes retained by the second connector member.  With this con-struction the developer storage tank can be replaced with utmost ease.
Patent CA-2024455-A1 (CA)
Title: Apparatus and process for generating steam from wet fuel
Inventor: RYHAM ROLF
IPC: F23G5/04
Filed: 1990-08-31
Abstract: ABSTRACT OF THE DISCLOSURE         A process and apparatus for the gasification of partially dried fuel with hot gas which has been heated by bringing it into contact with an inert hot heat carrier.  The fuel gases generated during the gasification process are further combusted and utilized for heating the inert heat carrier.  The process and apparatus can be combined with a process and apparatus for generating steam from wet fuel wherein water is evaporated from the wet fuel by bringing the fuel into direct contact with superheated steam.  The steam is superheated by bringing it into contact with a second hot heat carrier.  The second heat carrier is heated by bringing it into direct contact with the flue gas produced by combusting the fuel gas from the gasification process.
Patent CA-2024891-A1 (CA)
IPC: G01N33/49
Filed: 1990-09-07
Abstract: A device is disclosed that causes phase separation of whole blood, using much lower centrifugal forces.  As a result, lymphocytes are separated from blood cells having specific gravities of 1.08 g/ml or higher.  The device features a separation chamber arranged so that its long dimension or axis is parallel, not perpendicular, to the spin axis, and a valve that allows automatic removal of the lighter phase(s).  The valve is constructed to respond only to the head of liquid pressure generated by an increased centrifugal force, and not to that increased force alone.
Patent CA-2025431-A1 (CA)
Inventor: COTTE JEAN
IPC: A61K8/14
Filed: 1990-09-19
Abstract: . PREPARATION COSMETIQUE DE BRONZAGE. Préparation cosmétique de bronzage à base de liposomes, et dont la phase de dispersion contient des composés filtres et de la dihyroxyacétone (DHA), caractérisée en ce que la zone interne hydrophile des liposomes contient des principes hydratants et au moins un composé dérivé de la tyrosine, dont la fonction -NH2 est bloquée par un radical chimique.
Patent CA-2028998-A1 (CA)
Inventor: SCHNEIDER BARRY L
IPC: A61M25/02
Filed: 1990-10-30
Abstract: A tube holding assembly particularly suitable for supporting a nasogastric feeding tube so that such a tube is not shifted accidentally out of position during use.      The assembly includes a flexible nose pad adapted to be adhesively secured to a wearer's nose, a mounting pin projecting from a distal edge of the pad, and a pair of clamping jaws pivotally carried by the projecting end portion of the pin. The jaws have interdigitating tube-clamping plates disposed beneath the pin and a latching mechanism located in a readily viewable and accessible position above the pin.
Patent CA-2029224-A1 (CA)
Title: Garden furniture cushions with exchangeable cover
Inventor: VAN DIS WILLEM
IPC: B68G7/08
Filed: 1990-11-02
Abstract: Abstract GARDEN FURNITURE CUSHIONS WITH EXCHANGEABLE COVER            A cushion for use on garden furniture is provided, which cushion comprises a filling and a removable cover. To avoid folds developping in the cover, the hanging loosely thereof and to enhance its general appearance, the cover is on its inside and the filling is on its outside provided with releasable mutually fitting connections. These connections can be press studs, velcro tape, or a snap connection. Thus the removable cover is kept in its position relative to the filling. According to a preferred embodiment, the connections fitted on the filling are plates comprising a hole attached to the filling, and the connections attached to the cover are plates or buttons comprising a mushroom-like extension, fit-ting in the holes, together forming a snap connection.
Patent CA-2029290-A1 (CA)
Title: Dual layer resonant quadrifilar helix antenna
Inventor: TERRET CLAUDE
IPC: H01Q5/00
Filed: 1990-11-05
Abstract: ABSTRACT OF THE DISCLOSURE        Disclosed is a new antenna structure having a quasi-hemispherical radiation pattern and capable of having a relatively wide, passband, so that it is possible to define two neighboring transmission sub-bands therein or, again,  a single wide transmission band. The antenna is of the type comprising a quadrifilar helix (11) formed by  two bifilar helices (111, 112, 113, 114) positioned orthogonally and excited in phase quadrature, and including at least one second quadrifilar helixthat is coaxial and electromagnetically coupled with  said first quadrifilar helix (11). Preferred application to L band communications among geostationary satellites or transiting satellites with moving bodies fitted out with such antennas.             Fig. 1
Patent CA-2029909-A1 (CA)
Title: Heavy oil catalytic cracking process and apparatus
Inventor: OWEN HARTLEY
IPC: C10G11/18
Filed: 1990-04-10
Abstract: ABSTRACT OF THE DISCLOSURE      A fluidized catalytic cracking process and apparatus operates with a two stage hot stripper between the reactor and catalyst regenerator.  Addition of hot, regenerated catalyst to spent catalyst from the reactor heats the spent catalyst in the first stripping stage, which preferably uses steam stripping gas.  The second stage of stripping occurs about a heat removal means, such as a stab-in heat exchanger tube bundle, which removes heat from the catalyst during the second stage of stripping.  Steam or flue gas may be used in the second stripping stage to fluidize catalyst, improve heat transfer and simultaneously strip the catalyst.
Patent CA-2031309-A1 (CA)
Title: Couche de coton impermeabilisee
Inventor: CORRIVEAU OSIAS
IPC: A61F13/15
Filed: 1990-12-03
Abstract: FORMULE 24 ( ART. 21, 31, 34 7 142 ) Une couche pour bébés et adultes fabriquée de tissu de coton, dite "couche de coton conventionnelle" n'offre pas l'imperméabilité, c'est-à-dire qu'elle laisse traverser et s'écouler les liquides, n'étant conçue que de tissu de coton qui ne possède pas la propriété de l'étanchéité, et pour contrer cet effet, l'usager doit recourir au port d'une culotte de plastique extérieure, par-dessus ladite couche de coton. Cette nouvelle invention présente l'avantage d'offrir une couche de coton imperméabilisée dont l'élément qui permet telle imperméabilité est intégré à l'intérieur de ladite couche de coton de sorte que par ce procédé, la couche de coton devient imperméabilisée et ne requiert pas le port d'une culotte de plastique par l'usager et de plus, est lavable à la lessiveuse et séchable à la sécheuse et réutilisable d'innombrables fois une fois lavée et séchée.
Patent CA-2031521-A1 (CA)
IPC: F41J9/10
Filed: 1990-04-25
Abstract: An aerial gunnary target (42) which is towed behind a towing aircraft (24).  The gunnery target includes an extension device (46) that separates a forebody assembly (48) from a visual augmenter (44).   The target (42) also includes a vented inflator (56) positioned at the forward end of the visual augmenter (44).  The vented inflator (56) maintains the front end of the visual augmenter (44) open during towing.   The visual augmenter (44) is generally cylindrical in shape with an open aft end and an adjustment device for varying the size of the aft opening.   In addition, the visual body is comprised of a mesh netting (54)  which  preferably  includes  a plurality  of interconnected strands  (94)  joined together to form a plurality of diamond shaped openings.   The interconnected strands are each formed of a plurality of knitted threads and the strands are preferably joined together by knitting some or all of threads of one strand with some or all of the threads of an interconnecting strand.