baber/WOPTO huggingface dataset:
Patent CA-2044457-A1 (CA)
Inventor: BOURUETAUBERTOT ALAIN
IPC: B01J35/10
Filed: 1991-06-12
Abstract: La présente invention concerne une composition à base d'alumine pour catalyseur et un procédé de fabrication. La composition à base d'alumine de l'invention comprend au moins un second élément choisi dans le groupe comprenant l'yttrium,  les terres rares, les alcalino-terreux et se caractérise en ce que la concentration pondérale du second élément dans la composition est comprise entre 10% et 50%, et en ce qu'elle présente un volume poreux correspondant à des pores de diamètre inférieur à 100 nm compris entre 1,2 cm3/g et 3 cm3/g, dont au moins 80% correspond à des pores ayant un diamètre compris entre 10 nm et 100 nm, après un traitement thermique à une température de 350°C, et après un traitement thermique de quatre heures à 1200 C,un volume poreux pour les pores de diamètre inférieure à 100 nm compris entre 0,6 cm3/g et 1,5 cm3/g dont au moins 90% correspond aux pores de diamètre compris entre 20 nm et 100 nm.
Patent CA-2044807-A1 (CA)
Title: Reinforced base assembly for beam balance instrument
Inventor: GLASSEY EUGENE A
IPC: G01G21/23
Filed: 1991-06-17
Abstract: ABSTRACT        A base assembly for a beam balance instrument includes a box-like, open bottom base of lightweight sheet metal having  an  elongated  slot  in  its  upper  wall,  and  a reinforcing strip or bar inlaid into the slot for rigidly supporting parts of the balance.  The reinforcing strip is thicker and bulkier than the remainder of the base, and the fulcrum which pivotally supports the beam above the base is rigidly  fastened  on the  strip,  as  is  the  sensor  for detecting tilting of the beam in response to an applied force, and the bellows if the balance instrument is of the type used in measuring pressure variations.     [GLASGPAT.C07]
Patent CA-2047009-A1 (CA)
Title: Check valve, and hydromassaging apparatus comprising at least one of such a check valve
Inventor: ISABELLE PAUL
IPC: F16K15/14
Filed: 1991-07-12
Abstract: ABSTRACT OF THE DISCLOSURE:            An  improvement  in  a  check valve, especially a check valve  intended to be mounted across  a  corresponding  opening  of  a  hydromassaging apparatus.  The check valve comprises a casing having an inlet and an outlet, a conduit extending from said inlet to said outlet, means for axially setting and fastening the check valve in a corresponding opening, and improved means including a membrane and consisting of a flexible membrane made of elastomeric material and provided with an  orifice,  an  element  provided with a  flap seat of sufficient size to completly cover the orifice,  means for  connecting  the  element  with  the  casing  and positioning the seat in the vicinity of the outlet, and means for fastening a periphery of the membrane across the outlet of the casing, to align the orifice with the seat and to position said orifice in such a way with respect to the seat that the elasticity of the membrane presses  a  portion  thereof  surrounding  the  orifice against  the  seat.   When  the pressure  applied by  the water of the tub plus the pressure resulting from the elasticity of the membrane  that presses  a portion of said membrane surrounding the orifice against the seat is  higher  or  lower than  the pressure  of  air on  the opposite  side  of  the  membrane,  the  check  valve  is respectively  closed  or  opened.    The  invention  also relates to a hydromassaging apparatus equiped with such an improved check valve.
Patent CA-2049146-A1 (CA)
Title: Ablation catheter
Inventor: FEARNOT NEAL E
IPC: A61M25/00
Filed: 1991-08-13
Abstract: An ablation catheter is provided with an elongated member or shaft and a plurality of helically-shaped cutting wires attached to the shaft to form a cutting basket. Each of the cutting wires has a section formed as a circumferentially subscribing arc and together the wires present a circumferential cutting area of an essentially cylindrical configuration. Obstructing matter on the inner surface of a vessel cavity, such as a blood vessel or the like, is separated from the surface as the catheter is moved through the vessel. The catheter may be inserted in a vessel in a standard fashion using a wire guide which extends through a longitudinal passageway in the shaft and a hub interconnecting the basket wire. The shaft and basket together may be contained in an outer sheath to facilitate insertion. The outer sheath with the basket in a collapsed state in the outer sheath may be readily moved past an obstruction, and the sheath withdrawn to allow the basket to expand and come in contact with the interior surface of the vessel cavity. The proximal ends of the cutting wires extend from the shaft through a vibratory transducer, and the distal ends are connected together by a hub. Electrical current is applied to electrical terminals connected to the cutting wires at the proximal end of the shaft to heat the wires to facilitate separating obstructing matter from a vessel surface. Furthermore, the vibration transducer vibrates the cutting wires to further aid in separating plaque and obstructions from soft tissue such as the intima layer of the wall of a blood vessel.
Patent CA-2052930-A1 (CA)
Title: Process for regenerating ammoniacal chloride etchants
Inventor: CORDANI JOHN L
IPC: C25C1/12
Filed: 1991-10-07
Abstract: IMPROVED PROCESS FOR REGENERATING    AMMONIACAL CHLORIDE ETCHANTS                 ABSTRACT OF THE DISCLOSURE       A  process  is  described  for  the direct  electrolytic regeneration  of  chloride-based  ammoniacal  copper  etchants without  generating  any  significant  amount  of  gaseous chlorine.   The electrolysis  is  carried out using an etch resistant metal cathode and an anode which can be carbon, or an etch resistant metal optionally coated with a noble metal oxide.   The process can be adapted to a closed loop system for maintaining at a substantially constant level the amount of  copper  present in  an  operating  ammoniacal  chloride etchant bath.
Patent CA-2055687-A1 (CA)
Inventor: BOURSEAU BERNARD
IPC: C08L51/00
Filed: 1991-11-15
Abstract: Prémélanges gélifiés à base de polymères thermorésistants et compositions à base de polychlorure de vinyle contenant de tels prémélanges gélifiés Prémélanges gélifiés à base de polymères thermorésistants dont le point de ramollissement Vicat est supérieur à 100 .degree.C contenant un agent renforçant aux chocs et un lubrifiant du polychlorure de vinyle et compositions à base de polychlorure de vinyle contenant de tels prémélanges gélifiés. L'incorporation de polymères thermorésistants sous la forme de prémélanges gélifiés conduit à des compositions à base de polychlorure de vinyle parfaitement homogènes se transformant sans problème aux températures usuelles de mise en oeuvre du polychlorure de vinyle en articles façonnés à thermorésistance améliorée. Pas de figure.
Patent CA-2056054-A1 (CA)
Inventor: FAGE ETIENNE
IPC: F02K1/74
Filed: 1991-11-22
Abstract: ABREGE DESCRIPTIF TUYERE D'EJECTION DE GAZ POUR MOTEUR A REACTION ET MOTEUR A REACTION EQUIPE D'UNE TELLE TUYERE, EN PARTICULIER MOTEUR DU TYPE A FLUX SEPARES L'invention concerne une tuyère d'éjection à section de sortie variable pour moteur à réaction. Une jupe annulaire (Il) mobile axialement est disposée autour de la paroi fixe de tuyère (2) de façon à pouvoir être déplacée axialement entre une position amont où ladite jupe est située en retrait autour de la paroi fixe (2), et une position aval où elle se prolonge à l'arrière de la section de sortie de cette paroi. Une couronne semi-flexible (8) est prévue pour assurer la jonction entre la jupe mobile (4) et la paroi fixe (2), cette couronne venant en appui élastique autour de la paroi (2). L'invention permet en particulier d'augmenter la section de sortie d'une tuyère centrale à gaz chaud afin d'assurer une réduction de la poussée du jet chaud lorsque les inverseurs de poussée sont mis en oeuvre sur le jet froid. Elle permet également dans certaines conditions de vol, notamment par temps chaud en phase de décollage, de réduire la température des gaz chauds de sortie et de permettre ainsi d'accroître la vitesse du générateur de gaz et d'augmenter la poussée en jet direct.
Patent CA-2059433-A1 (CA)
Title: Process for the preparation of alkyl glycosides and alkyl polyglycosides
Inventor: SCHMIDT STEFAN
IPC: C07H15/04
Filed: 1992-01-15
Abstract: ABSTRACT         A one-step process for the preparation of alkyl glycosides and alkyl polyglycosides from a saccharide and an alcohol having 12 to 20 carbon atoms is disclosed.  The process comprises reacting the saccharide and the alcohol in a molar ratio of from 1:5 to 1:10, in the presence of an acid catalyst, sodium hypophosphite and up to about 1.3% of water, relative to the total of saccharide and alcohol.  After the reaction is completed, the reaction mixture is neutralized with a solution of an alkali metal hydroxide in an alcohol having 1 to 4 carbon atoms.  The product so obtained are only pale-coloured compared with products prepared by known processes and may be used directly for preparing cosmetics and detergent compositions.
Patent CA-2060291-A1 (CA)
Inventor: SEMASA TAKAYOSHI
IPC: H04N1/40
Filed: 1992-01-29
Abstract: An image processing apparatus for outputting an image which contains different kinds of multi-level signals for letters, figures, photographs, screened-halftone, etc.  The apparatus comprises a screened-halftone pattern detecting circuit and a continuous-tone pattern detecting circuit for detecting a screened-halftone pattern and a continuous-tone pattern, respectively, by using neighboring pixels of the target pixel, counters for counting UP/DOWN in accordance with the outputs of the detecting circuits, a filter for switching the filtering coefficients of the image signal in multiple stages in accordance with the outputs of the counters and a quantizer for bi-level-quantizing the output of the filter.  It is thus possible to produce an image having a good quality free from deterioration due to the rapid switching of region judgements and bi-level-quantizing methods.
Patent CA-2061768-A1 (CA)
Title: Variable undershot waterwheel
Inventor: SMALL RICHARD J A
IPC: F03B7/00
Filed: 1992-02-24
Abstract: Abstract                        Page 2 This type of water wheel can be placed directly in a moving water system, and be allowed to maintain a constant speed (power output) by adjusting the height the water wheel sits, as the water level rises and falls
Patent CA-2062615-A1 (CA)
Inventor: WEBB GARTH T
IPC: A61L12/12
Filed: 1992-03-10
Abstract: METHOD AND KIT FOR DISINFECTION OF CONTACT LENSES             Abstract of the Disclosure A  method  of  disinfecting  plastic  or  rubber contact lenses comprises immersing, for a period of time sufficient to result in disinfection, the contact lenses in a solution containing a chlorine-releasing agent, wherein the amount of chlorine released is from 1 to 500 parts per million, preferably 10 to 20 ppm, and from 1 to 200 parts per million hydrogen peroxide, preferably . The invention further provides a kit for sterilizing soft contact lenses comprising a chlorine-releasing agent, hydrogen peroxide, an apparatus for producing a sterile saline and mixing the sterilizing solution and a holder for washing the lenses.
Patent CA-2063649-A1 (CA)
Title: Apparatus for automatic level control in a closed channel or container for transport and/or distribution of fluidisable material
Inventor: ENSTAD GISLE G
IPC: B65G53/18
Filed: 1992-03-20
Abstract: An apparatus having a closed channel or container (1) for transporting and/or distributing fluidisable material (4), the apparatus comprising an air- or gas-permeable wall (2) arranged in the channel and forming a partition between an upper pathway (3) for the fluidisable material and a lower flue (5) which is fed gas from a gas source via a tube (6). An inlet (7) is provided for feeding fluidisable material to the channel. The apparatus also comprises one or more outlets for continual or intermittent run off of material from the channel, together with a tube (8) for ventilating the channel. The channel is equipped at its inlet with a pipe stub (9) extending into the upper pathway (3). Further, there is an area defined under the pipe stub (9) which is inactive or which is equipped with a separately arranged fluidising wall with a separate gas feed.
Patent CA-2064065-A1 (CA)
Inventor: CUNNINGHAM BRYCE A
IPC: C12Q1/48
Filed: 1990-07-20
Abstract: An improved kinetic assay is provided for spectrophotometrically determining dissolved carbon dioxide (CO2) in body fluid wherein at pH 8.0 the CO2 is present substantially as bicarbonate ion (HCO3). The sample is subjected to a reaction mixture containing phosphoenolpyruvate (PEP) and phosphoenolpyruvate carboxylase (PEPC) which enzymatically catalyzes conversion of HCO3 to oxaloacetate (OA). The OA produced is subject to a second reaction mixture containing NADH and malate dehydrogenase (MDH) which reduces the OA to malate and oxidizes the NADH to NAD+. The CO2 level in the sample may be indirectly determined by measuring the change in NADH concentration. An inhibitor is added to the reaction mixture which renders the reaction kinetics of the system essentially first order over the entire bicarbonate concentration range of interest. Best results have been obtained through use of an inhibitor which provides an anion selected from the group consisting of Cl03, Cl04, SCN, or I.
Patent CA-2066069-A1 (CA)
Inventor: CARROLL ALAN F
IPC: H05K1/03
Filed: 1992-04-15
Abstract: Title Method for Making Multilayer Electronic Circuits Abstract A method for making multilayer electronic circuits comprising the sequential steps of (1) applying to a substrate comprising a plurality of alternating dielectric and conductive layers a thick film dielectric paste containing a low-melting silicate glass;             (2) applying to the dielectric paste layer a pattern of thick film conductor paste comprising finely divided particles of silver, an inorganic binder and a ruthenium- or rhodium-based sintering inhibitor, all dispersed in an organic medium; and (3) air cofiring the applied layers of thick film dielectric and conductive pastes.
Patent CA-2068106-A1 (CA)
Title: Screw-on lid release tool
Inventor: EVANS BRIAN N
IPC: B67B7/14
Filed: 1992-05-06
Abstract: ABSTRACT.          In tools for opening screw-top jars that cannot easily be opened by hand, it is known to have tools fox increasing the torsional forces that can be applied to the lids.          This invention relates specifically to sealed rigid jars of the type that have multiple threads on their outside surfaces which engage with multiple threads on the inside edges of matching flexible lids and have resilient, compliant seals between the lids and the top edges of the jars.          In this invention, the lids are prized away from the jars in such a way that air is allowed to enter into the jars and equalize the pressures inside the jars with atmospheric pressure. The prizing action may also deform one or more of the threads, and or the material surrounding the threads, on the inside edges of the lids.  Either or both of these changes reduce the compression of the seals between the lids and the tops of the jars thereby reducing the torsional forces required to turn the lids and enabling the lids to be easily removed by hand.          In prizing the lids away from the jars, the amount by which the prizing action can distort the lids is limited so that the lids are not permanently deformed to such an extent that they cannot be put back onto the jars and be used to manually close and seal the jars.
Patent CA-2071190-A1 (CA)
Inventor: HEITMANN WILLIAM E
IPC: C22C38/24
Filed: 1992-06-12
Abstract: A hot rolled steel bar is subjected to controlled hot roll finishing and cooling conditions which, together with the composition of the steel and controlled subsequent heat treating and quenching conditions, enable the formation of a steel spring having both relatively high hardness and high toughness.
Patent CA-2071731-A1 (CA)
Inventor: SAKATA TAKASHI
IPC: G01N33/50
Filed: 1992-06-19
Abstract: A hematological specimen for classifying and counting leukocytes with a flow cytometer is prepared. A sample to be assayed is prepared by eliminating influences of erythrocytes from a hematological sample without changing leukocytes morphologically; adjusting the pH value to a level suitable for staining; and staining the leukocytes with at least two dyes including Astrazon Yellow 3G capable of specifically staining at least basophils and immature granulocytes and Neutral Red capable of specifically staining at least eosinophils. Thus leukocytes contained in the hematological sample can be classified at least three or six groups including immature granulocytes by measuring a single specimen with a flow cytometer.
Patent CA-2072922-A1 (CA)
Title: Polycarbodiimide pulp and process for production thereof
Inventor: AMANO SATOSHI
IPC: C08J5/00
Filed: 1992-07-02
Abstract: ABSTRACT        The present invention is intended to provide a poly-carbodiimide pulp improved in heat resistance, etc. and a pro-cess allowing for easy production of said polycarbodiimide pulp.         The polycarbodiimide pulp of the present invention consists substantially of a polycarbodiimide represented by one of the following formula   wherein R1, R2 and R3 each represent a lower alkyl group or a lower alkoxy group, R4 and R5 each represent a hydrogen atom,a lower alkyl group or a lower alkoxy group, and X represents an oxygen atom or a methylene group.
Patent CA-2074656-A1 (CA)
IPC: C08L67/02
Filed: 1993-01-26
Abstract: Abstract of the Disclosure According to the present invention there is provided a polyester composition comprising an aromatic polyester having copolymerized therein a compound containing at least one sulfonic acid group or sulfonic acid metal salt group, and crosslinked polymer particles, preferably crosslinked polymer particles coated with a water-soluble polymer.  The particles are incorporated in a slurried state into the polymer.  There is also provided a laminate film containing the polymer with the particles thus incorporated therein.     The polyester composition is superior in uniform dispersibility of the particles, re-agglomeratin does not occur in melt-storage for a long time, and films formed using the polyester composition are superior in traveling performance and abrasion resistance.
Patent CA-2075001-A1 (CA)
Inventor: KUBOTA YOSHIKAZU
IPC: D21H27/26
Filed: 1992-07-30
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed is a decorative laminates having a decorative paper and having a fine dot-like tone appearance.        The decorative paper contains pigment(s) having a mean particle size of from 20 to 100 µ m and/or powdery colored fibers having a mean fiber length of from 50 to 2000 µ m as incorporated thereinto during papermaking.  The fine dot-like tone appearance of the sheet is durable and is hardly worn away.
Patent CA-2077471-A1 (CA)
Title: Scaffolding support system
Inventor: LAWRENCE DAVID M L
IPC: E04G1/34
Filed: 1992-09-03
Abstract: ABSTRACT OF THE DISCLOSURE          SCAFFOLDING SUPPORT SYSTEM A scaffolding support arrangement includes a main horizontal support bar for receiving planking thereon on which a user can stand. One end of the support bar rests against the vertical surface such as a wall. The other end of the support bar is supported by an A-frame construction including a pair of outwardly diverging legs. The legs are interconnected by a cross bar. A pair of braces extend from a respective leg upwardly and rearwardly toward the support bar. The top of the legs and the top of the braces are coupled to the support bar by a hinge coupling in the form of a U-shaped pin which allows swivel action about two directions to allow the legs to fold inwardly and then the support bar to fold downwardly so that all lie closely adjacent for simple transportation. The braces and the cross bar can fold upwardly in the folding action. Two designs of foot are shown and also extension portions are available to increase the length of the support bar on the legs.
Patent CA-2077667-A1 (CA)
Inventor: ROWLAND MICHAEL E
IPC: C08L33/02
Filed: 1992-01-24
Abstract: Aqueous dispersions of ethylene/~,.beta.-unsaturated carboxylic acid interpolymers (e.g., random ethylene/acrylic acid interpolymers) are formed using a mixture of bases at a concentration of at least 0.2 equivalents of base per mole of .alpha.,.beta.-unsaturated carboxylic acid. The dispersions have at least 10 weight percent dispersed solids and not more than 1 weight percent of the initial polymer in non-dispersed form. Preferred bases for use in forming the dispersions are ammonium hydroxide and/or alkali metal hydroxides. A mixture of ammonium hydroxide and potassium hydroxide is especially preferred for forming the dispersions with ethylene/acrylic acid interpolymers at an ammonium hydroxide: acrylic acid molar ratio of 1:1 and a potassium hydroxyde: acrylic acid molar ratio in the range of 0.6-0.8:1. The dispersions are particularly useful in forming thin coatings of adhesive on substrates, such as paper and metal foil, using conventional techniques.
Patent CA-2082802-A1 (CA)
Title: Method for expressing polypeptides in cyanobacteria
Inventor: HAGIWARA HIDEAKI
IPC: C12R1/89
Filed: 1992-03-11
Abstract: A method for expressing a physiologically active polypeptide in cells of a blue-green alga by transforming the cells of a blue-green alga with a recombinant DNA containing a structural gene encoding the polypeptide, characterized in that as the recombinant DNA is used a recombinant DNA which contains a structural gene encoding the physiologically active polypeptide, the transcription initiation region of the RuBisCO gene of Anacystis nidulans located upstream of the structural gene, and the transcription termination region of the RuBisCO gene located downstream of the structural gene.      According to this method, physiologically active polypeptide can efficiently be expressed using blue-green algae.
Patent CA-2084726-A1 (CA)
Title: Air engine and the air compressor with storage tank
Inventor: BUJALSKI WLODZIMERZ
IPC: F01D15/02
Filed: 1993-02-04
Abstract: Abstract.     The AIR ENGINE and the AIR COMPRESSOR with STORAGE TANK  is the best technical solution at this time.  The following information  will reveal  the distinctive features of the product concept and the needs it will fulfil. The concept of the "AIR ENGINE" is a design for the air-powered automobile engine. The recycling of pressurized air makes this invention very practical because it eliminates any loss of energy and the need for a muffler to reduce noise. The excess pressurized air (about 75%)  will be recycled through the air compressor to the storage tank  The speed of vehicles will also be very helpful in this process because it will add a small percentage of air pressure and will cool the air compressor. The air engine will never be overheated; therefore, eliminates the cooling system.  Power created by the air under pressure-(minimum  6atm.)  is  changed  into  circular motion by two turbines-cylinders with toothed gear in the engine and the circular motion is transmitted to the  rear axle to turn the wheels. One object of this invention is to provide a device of the  above nature which will  be  simple  in construction, inexpensive to manufacture and very efficient and durable in use.