baber/WOPTO huggingface dataset:
Patent CA-2157154-A1 (CA)
Title: Bleaching of high-yield pulps with oxygen
Inventor: LEARY GORDON
IPC: D21C9/10
Filed: 1995-08-29
Abstract: A process for bleaching high-yield (mechanical or chemi-mechanical) pulps to high brightnesses and low yellownesses (b*) in a single treatment employs di-oxygen gas (O2), alkaline agent and a borohydride. The combined treatment  gives  brightnesses  comparable  with  those achieved with stabilised alkaline hydrogen peroxide. By comparison the reaction of di-oxygen and alkali  alone darkens  high-yield pulps;  and treatment with  alkaline borohydride in the absence of added di-oxygen bleaches to give only about half the brightness gained if di-oxygen is added.   The bleaching may possibly occur through the conversion of di-oxygen molecules (O2) to hydroperoxide ions   (HOO-)   utilising  ionised  phenolic  groups  or hydroquinones in the lignin. The hydroperoxide ions are thus generated in situ in the lignin and can destroy coloured lignin chromophores.   Without the addition of borohydride  the   lignin  phenolic   groups   would  be irreversibly  oxidised.   The  primary  role     of  the borohydride  is to  regenerate  the  phenolic  groups  and maintain a di-oxygen hydroperoxide (O2) (HOO-) cycle. In a secondary role, the borohydride also contributes to the bleaching by reducing  radicals,  organic peroxides  and carbonyl compounds in the pulps.
Patent CA-2159304-A1 (CA)
Inventor: TANIMURA KAZUAKI
IPC: G01M3/20
Filed: 1995-09-27
Abstract: An inspection liquid containing a light emitting materiel which emits light by being irradiated with a beam such as ultraviolet ray is prepared and applied to the object material to be inspected. After that,  a beam capable of illuminating inspection liquid such as ultraviolet ray is irradiated from a beam emitting unit on the object material to be inspected to detect the point of occurrence of any leakage of fluid in the object material to be inspected by illuminating the route through which the inspection liquid spread.
Patent CA-2159804-A1 (CA)
Title: Cell culturing method and medium
Inventor: COON HAYDEN G
IPC: A61K35/39
Filed: 1994-03-21
Abstract: The present invention provides a method for producing an expanded non-transformed cell culture comprising the steps of: (1) preparing partially purified, minced tissue; (2) concentrating the resulting cells and tissue pieces; (3) resuspending the concentrated tissue cells and pieces in a culture medium capable of supporting sustained cell division that is contained in a culture vessel; (4) incubating the cells; and (5) passaging the cells periodically.  The present invention further provides clonal strains of cells derived from the above-mentioned cell culture, medium and conditioned medium designed for the culturing of such cells, including pancreatic, thyroid, parathyroid and parotid cells, and the use of cultured pancreatic cells to form pancreatic pseudotissues composed of matrix-embedded aggregated (pseudoislets) or individual cells, to treat blood sugar disorders in mammals, and to test for cytotoxicity and autoimmune activities with reference to pancreatic endocrine cells.
Patent CA-2163138-A1 (CA)
Title: Nucleated polyolefin-based composition for rotational molding
Inventor: NEEDHAM DONALD G
IPC: B29C41/06
Filed: 1995-11-17
Abstract: A polyolefin-base composition useful for rotational molding, is provided.  A polyethylene resin blend is beneficially used.  The composition advantageously includes a nucleating agent.  Rotomolded containers having improved resistance to puncture are beneficially provided.          Also provided is a method of rotomolding the composition.
Patent CA-2167221-A1 (CA)
Title: Iron-based alloy for use in molds for plastics
Inventor: HACKL GERHARD DR
IPC: C22C38/24
Filed: 1996-01-15
Abstract: The use of a chromium-containing martensitic alloy for plastic molds is described. The use properties of a thermally-treated plastic mold of a hardness of at least 45 Rockwell C are improved by an iron-based alloy including, in weight-%:      C 0.25 to 1.0, preferably 0.4 to 0.8;      N 0.10 to 0.35, preferably 0.12 to 0.29;      Cr 17.0 to 25.0, preferably 17.0 to 19.0;      Mo 0.5 to 3.0, preferably 0.8 to 1.5; and V 0.04 to 0.1, preferably 0.05 to 0.1, where the sum of the concentration of carbon and nitrogen results in a value of, in weight-%, at least 0.5 and no more than 1.2, preferably at least 0.61 and no more than 0.95, the remainder including iron and melt-related impurities.
Patent CA-2170610-A1 (CA)
Title: Removal of noxious oxidants and carcinogenic volatile nitrosocompounds from cigarette smoke using biological substances
Inventor: STAVRIDIS IOANNIS
IPC: A24D3/16
Filed: 1994-06-27
Abstract: This invention refers to a method of withholding noxious compounds contained in cigarette smoke (NO, NOx, carcinogenic nitrosocompounds, free radicals, H2O2, CO, aldehydes, and trace elements) which were up to today insufficiently retained by conventional cigarette filters. The method described specifically refers to the enrichment of common convention filters with biological substances of the metal ions (Fe2+, Cu2+, Mg2+) complexed with porphirin ring as well as Fe2+ ions stereospecifically bound to protein molecules, either separately or in combinations. The enrichment of these conventional filters with the abovementioned biological substances alters neither the physical properties of the cigarette smoke (odor, taste and appearance) nor the physical properties of the filter itself.
Patent CA-2171644-A1 (CA)
Title: Internal combustion engine
Inventor: MCLACHLAN PAUL ANTHONY
IPC: F01C9/00
Filed: 1994-09-16
Abstract: An internal combustion engine in which the piston (10) rocks about a pivot point (60) with the piston (10) being connected adjacent the end remote from the pivot point (60) to a connecting rod (12) to drive a crankshaft. The piston (10) has a first arcuate sealing surface (41) and a second arcuate sealing surface (42) which is offset radially from the first sealing surface (41) with the first and second sealing surfaces (41, 42) being connected by a floor (44). The first arcuate sealing surface (41) seals against a correspondingly arcuate wall (51) of the combustion chamber (20) and the second arcuate sealing surface (42), which forms one wall of the combustion chamber (20), seals against a wall (52) of a boost chamber (53). The engine can be compression ignition or spark ignition and can be of the two-stroke cycle or four-stroke cycle.
Patent CA-2173775-A1 (CA)
Title: Polyolfefin composition
Inventor: SLONGO MARIO
IPC: B29C48/305
Filed: 1996-04-10
Abstract: The invention relates to synthetic waterproofing sheets made of polyolefin compositions containing at least one homogeneous polyolefin copolymer and at least one further polyolefin polymer, wherein the second polyolefin polymer can be a heterogeneoue standard homo-or copolymer or a further homogeneous copolymer which differe from the first homogeneous copolymer.
Patent CA-2174030-A1 (CA)
Title: Winter windshield wiper having a contoured and flexible vane
Inventor: LEE ALBERT
IPC: B60S1/38
Filed: 1996-04-12
Abstract: A winter windshield wiper for use in a motor vehicle includes a connecting member, a rubber sheet sealed windshield wiper frame having a wiper blade, disposed under the connecting member, and a horizontally elongated vane member having at least one wing for effectively cleaning and wiping the convex surface of the windshield glass, and extending the operation life of the windshield wiper.
Patent CA-2176300-A1 (CA)
Inventor: MASON JAMES P
IPC: C08L77/12
Filed: 1996-05-10
Abstract: The impact strength of a thermoplastic molding composition containing aromatic polycarbonate resin and thermoplastic polyester is improved upon the incorporation therewith of a particular silicone rubber powder. The silicone rubber powder, added at a level of about 3 to 25 contains a mixture of (a) a polydiorganosiloxane and (b) finely divided silica filler.
Patent CA-2178110-A1 (CA)
Inventor: PEIFFER HERBERT
IPC: C08J5/18
Filed: 1996-05-30
Abstract: A biaxially oriented polypropylene film is described. The base ply of the film contains at least 90% by weight of a polypropylene  prepared by means  of  a metallocene catalyst. This polypropylene is distinguished by a mean isotactic block length of greater than 40, an n-heptane soluble fraction of less than 1% and a ratio of the weight average molecular weight Mw to the number average molecular weight Mn of less than 4.
Patent CA-2180619-A1 (CA)
Inventor: KOIKE MASARU
IPC: B27L5/02
Filed: 1996-07-05
Abstract: A method of controlling the clearance angle of a veneer knife in a veneer lathe under a spindleless condition is applied to a veneer lathe that includes the veneer knife, at least three rollers, feed mechanisms coupled to at least two of the rollers for feeding the rollers, and a drive system coupled to at least one of the rollers for rotatably driving thereof, wherein the rollers to which the drive system is coupled supplies all the driving force required for rotating the log while each roller to which the feed mechanism is coupled are fed to hold the log while the log is peeled by the veneer knife. The method comprises the steps of setting a shifting amount based on a predetermined reduction in the diameter of the log from a predetermined first diameter to a predetermined second diameter and automatically shifting the rotational axis of the log in the direction perpendicular to the plane extending between the rotational axis of the log and the cutting edge of the veneer knife by the shifting amount during veneer peeling.
Patent CA-2181347-A1 (CA)
Inventor: CEREDIG RHODRI
IPC: C12N15/09
Filed: 1995-01-13
Abstract: L'invention concerne une culture de cellules souches pures, qui sont des précurseurs hématopoïétiques mammaliens immatures à double action, comprenant la constellation du marqueur AA4.1+B220-.
Patent CA-2182716-A1 (CA)
Title: Adhesive material with removable carrier
Inventor: PLEWS JACQUELINE
IPC: A61F13/00
Filed: 1995-02-02
Abstract: There is described a conformable material which comprises a backing layer driving an adhesive layer on a first surface and a removable protector covering the adhesive layer and a removable carrier layer on the non-adhesive surface of the backing layer, the carrier layer and optionally the protector layer, is provided with a slit substantially the length of one of its axes.
Patent CA-2183654-A1 (CA)
Title: Produit d'etalonnage et de controle de qualite des proteines
Inventor: MAGNESON GERALD R
IPC: G01N33/92
Filed: 1995-02-21
Abstract: L'invention concerne une composition qui permet de stabiliser des protéines en vue d'un stockage à sec de longue durée et d'une récupération supérieure de leur structure protéinique native, ce qui leur confère une stabilité prolongée entre 2 et 8 ~C, une fois qu'elles sont reconstituées. Cette composition comprend: 1) un plasma sanguin dépourvu de fibrine et de sodium, 2) un sucre pouvant se cristalliser, 3) une séralbumine et/ou une gélatine et 4) un sel de potassium. L'invention concerne aussi un procédé permettant de stabiliser une protéine en vue d'un stockage à sec de longue durée grâce à la composition sus-mentionnée.
Patent CA-2184609-A1 (CA)
Title: A method of and device for producing energy
Inventor: POMPEI LADISLAO
IPC: F23C99/00
Filed: 1995-03-03
Abstract: The application concerns a method and a device for producing heat energy by contacting water with hot oil in  a reaction  vessel (11), which leads to a violent reaction outputting a flame-like eruption of very hot gases, the generated  heat energy being more than can be obtained by simply burning only the oil.
Patent CA-2184616-A1 (CA)
Title: Optical fibre installation tool
Inventor: FROST PETER LEWIS JOHN
IPC: G02B6/50
Filed: 1995-03-02
Abstract: A tool (F) is provided for installing an optical fibre transmission line (1) between the inside of a customer's premises and the outside thereof along a preinstalled tubular pathway which passes through an aperture in a wall of said premises. The tool (F) comprising a housing (11), a motor mounted within the housing, a motor output shaft (12), and a pair of drive wheels (13, 14). At least one of the drive wheels (13 or 14) is drivably connected to the output shaft (12) of the motor. The drive wheels (13, 14) are mounted on the housing (11) for relative movement towards/away from one another, whereby the optical fibre transmission line (1) can be driven along the tubular pathway by the inter-engagement of the counter-rotating drive wheels (13, 14). The tool (F) may incorporate an air injector unit (21) for propelling the transmission line (1) along the tubular pathway by fluid drag of air passed through the pathway.
Patent CA-2184967-A1 (CA)
Title: Medical Isotope Production Reactor
Inventor: BALL RUSSELL M
IPC: G21G1/02
Filed: 1996-09-06
Abstract: Medical isotopes are produced using a lower power, low cost nuclear reactor which permits the use of all the fission products produced in the reactor.  Medical isotopes such as Molybdenum-99 are produced in a reactor operating at a power of 100 to 500 kilowatts.
Patent CA-2185137-A1 (CA)
Title: Method of operating a sequencing batch reactor
Inventor: HO KIN MAN
IPC: C02F3/12
Filed: 1995-03-10
Abstract: A method of operating a sequencing batch reactor is described in which feed is supplied thereto by distributing feed into settled sludge in the bottom part of the reactor.   A sequencing batch reactor having means for supplying feed to the bottom of the reactor is also described.
Patent CA-2186564-A1 (CA)
Inventor: KINDT-LARSEN TURE
IPC: C08L91/06
Filed: 1996-09-26
Abstract: The present invention is directed to a composition comprising polystyrene or polypropylene with at least 0.05% (w/w) of an additive or wetting agent, the article of manufacture comprised thereof, such as a mold for making contact lenses and the mold assembly containing said mold, and the use of such mold so to minimize defects, such as holes, puddles, chips and tears in the lens.
Patent CA-2186809-A1 (CA)
Title: Water diverting building block
Inventor: SAUVE DENNIS L
IPC: E04B1/70
Filed: 1996-09-30
Abstract: A hollow concrete building block is provided having physical characteristics which diverts water penetrating inside the block away from the interior of the building. The block comprises parallel interior and exterior walls and at least one transverse vertical web spanning between the walls to form a unitary block with an interior cavity. The webs have notches on the top and bottom surfaces which divert any infiltrating water into the cavities. The notches span the length of the top and bottom surfaces of the web. The apex of the top notch is proximate to the exterior wall of the block while the apex of the bottom notch is proximate to the interior wall. Once in the cavities, the water drops to the lowermost block where conventional flashing and weep holes convey the water to the exterior.
Patent CA-2187908-A1 (CA)
Title: Non-splicing variants of gp350/220
Inventor: SPAETE RICHARD
IPC: C12N1/21
Filed: 1995-04-13
Abstract: Composition comprising gp350 variant DNA and amino acid sequences are provided, as are vectors and host cells containing such sequences. Also provided is a process for producing homogeneous gp350 protein recombinantly and in the absence of production of gp220 protein, pharmaceutical compositions containing such protein and prophylactic uses.
Patent CA-2188373-A1 (CA)
Inventor: BECKWITH ROBERT W
IPC: H01F27/29
Filed: 1996-10-21
Abstract: A power system relay combining the functions of tapchanger control, capacitor control, substation data monitoring and communications.
Patent CA-2189313-A1 (CA)
Title: On-Screen Displaying Apparatus
Inventor: YOSHIDA HIROYUKI
IPC: H04N5/00
Filed: 1996-10-31
Abstract: The on-screen displaying apparatus displays the remote control hand unit and its keypad graphically on the CRT 9 screen and changes the mode to help mode when the [MENU] key, for example, of the remote control hand unit 10 is pressed. In this help mode, when the user presses an arbitrary key on the remote control hand unit, the displayed key corresponding to such actually pressed key changes in color or blinks on said CRT screen. At the same time, the function description (the main points of the function description described in the manual) of such key is displayed on said CRT screen. The user can use all the functions of any apparatus by using the remote control functions effectively even though he/she forgets the remote operation procedure or loses the manual.
Patent CA-2189856-A1 (CA)
Title: Method for detecting a target nucleic acid
Inventor: WANG CHANG-NING J
IPC: C12Q1/68
Filed: 1994-05-23
Abstract: A method for detecting a target nucleic acid, which method includes the steps (i) amplifying the target using acid to obtain an amplification product using a polymerase, a first primer with or without a segment noncontiguous to a first priming sequence, and a second primer with or without a segment noncontiguous to a second priming sequence in the presence of an oligonucleotide which is incapable of acting as a primer for the polymerase, wherein the oligonucleotide has at least 5 consecutive nucleotides fully complementary to at least 5 consecutive nucleoddes of the first primer, and (ii) detecting the presence of the target nucleic acid by monitoring amplification thereof. In particular, the figure illustrates the method wherein the primer contains a segment noncontiguous to its priming sequence.
Patent CA-2193324-A1 (CA)
Inventor: DOTH MARGIT
IPC: G01N33/531
Filed: 1996-12-18
Abstract: Molecules which are only stable and soluble under denaturing conditions can nevertheless be employed as calibrators in immunoassays if the calibration protocol differs from the protocol for the patient sample, if, for example, a smaller sample volume is employed.
Patent CA-2195135-A1 (CA)
Title: Adhesive label system
Inventor: SCHOSTEK CHRISTIAN J
IPC: G09F3/10
Filed: 1997-01-15
Abstract: The present invention relates to an adhesive label system and information booklet which may be attached to products, containers or packaging. Specifically, the adhesive label system provides a system in which the information booklet may be removed from the label system along micro-perforations around the underlying information booklet. In avoiding the use of larger perforations, the invention minimizes the risk of damage to the underlying information booklet which may result from chemical spillage onto the outer surfaces of the label system or by abrasion. Furthermore, the label system provides a visually alluring label which enhances the recognition of the presence of the information booklet within the label system and which facilitates the removal of the information booklet therefrom.
Patent CA-2196287-A1 (CA)
Title: A method for the extraction of low molecular weight mercaptans from petroleum and gas condensates
Inventor: MAZGAROV AKHMET MAZGAROVICH
IPC: B01J31/18
Filed: 1995-07-27
Abstract: A method of extraction of low molecular weight mercaptans from petroleum (e.g., crude oil) or gas condensate containing such mercaptans comprises (1) contacting the mercaptans with oxygen in an aqueous solution of a metal hydroxyde, in the presence of a cobalt dihalodihydroxydisulfophthalocyanine catalyst, the catalyst being used in an amount within the range of from about 0.5 x 10-5 to about 2.5 x 10-5 weight percent based on the weight of the petroleum or gas condensate, the catalyst being introduced into the crude oil or gas condensate continuously in the form of a catalytic complex in an aqueous solution of a metal hydroxide, the extraction method being conducted at a temperature ranging from about 40 to about 60 ~C and a pressure ranging from about 1.0 to about 1.4 MPa, and (2) separating the petroleum or gas condensate fro m the aqueous solution of metal hydroxyde.
Patent CA-2197101-A1 (CA)
Inventor: HOOD OLIVER
IPC: B26B5/00
Filed: 1995-08-10
Abstract: Un couteau ou un cutter comprend un corps (1) prévu pour être tenu dans la main, une lame (2) faisant saillie hors du corps (1) une plaque de garde (6) jouxtant la lame (2) et faisant face à l'élément coupant de la lame, ainsi qu'un élément de fixation (7) pour fixer la plaque de garde (6) au corps (1). L'élément de fixation est mince près de son point de fixation à la plaque de garde et il est disposé à l'avant de la lame, en alignement avec celle-ci. De cette manière, quand on introduit un matériau à couper entre le corps et la plaque de garde et que l'on applique une pression au corps, l'élément coupant presse le matériau à couper contre la plaque de garde. L'élément de fixation est, de préférence, flexible. On prévoit une rainure (10) ou une fente dans la plaque de garde (6) en alignement avec la lame (2). On décrit différentes formes d'exécution de l'élément de fixation, illustrations à l'appui. On décrit également un couteau ayant une unité de lame remplaçable (14) comprenant une lame (17) à pointes multiples, montée à l'intérieur d'un logement, la lame pouvant tourner entre des positions de repos où toutes les parties (18) de la lame sont à l'intérieur du logement et des positions de coupe où une des pointes de la lame fait saillie hors du logement et à l'extérieur du corps.
Patent CA-2198254-A1 (CA)
Inventor: OKITSU KIYOSHI
IPC: C08J7/046
Filed: 1996-06-28
Abstract: L'invention porte sur des articles en plastique revêtus en surface enduits, d'une bonne durabilité, présentant notamment des caractéristiques de résistance aux intempéries, au frottement et de tolérance thermique, etc. Il est possible d'obtenir cet article par l'application sur celui-ci d'un revêtement comprenant une composition à base de résine durcissable contenant, pour 100 parties en poids d'une résine acrylique ne portant pas de groupe hydroxyle mais présentant au moins un groupe époxy alicyclique et d'un poids moléculaire moyen en poids compris entre 2000 et 30000, de 0,01 à 10 parties en poids d'un composé organométallique, de 0,01 à 10 parties en poids d'un composé de silicium, présentant un groupe silanol ou capable de former un groupe silanol sous l'effet d'une exposition à un rayonnement lumineux et de 0,01 à 10 parties en poids d'un agent absorbant les ultraviolets. L'article en plastique moulé sur lequel est faite cette application est fait d'un matériau sélectionné dans le groupe constitué par des résines de polycarbonate, des résines acrylonitrile-butadiène-styrène (A.B.S.), des résines acryliques, des résines de chlorure de vinyle, des résines polyamides, des résines d'oxyde de polyphénylène et de mélanges de résine les contenant.
Patent CA-2199252-A1 (CA)
Title: Methods for the treatment of osteoporosis using bone active phosphonates and parathyroid hormone
Inventor: BEVAN JOHN ALTHORP
IPC: A61P5/12
Filed: 1995-09-06
Abstract: The present invention provides methods of treating a human or other animal subject having a bone metabolism disorder, comprising the steps of: (a) administering to said subject a safe and effective amount of a bone active phosphonate during a period of at least about 6 months; (b) administering to said subject a safe and effective amount of a parathyroid hormone, during a period of from about 3 to about 12 months.
Patent CA-2199381-A1 (CA)
Title: A peristaltic pump
Inventor: REFSON BERNARD HENRY
IPC: F04B43/08
Filed: 1995-09-01
Abstract: A peristaltic pump, which provides a relatively rigid tubular body (2); a contained substantially tubular elastic element (1), with an outside diameter less than the inside diameter of the said body and statically sealed to the ends of the body (2), and a means which may consist wholly of rigid members for intermittently expanding the entire periphery of radial sections of the element up to the whole of the inside diameter of the body in axial sequence between two ports (4) therein. A torus-like pumping chamber (3), fully sealed in all three dimensions, is thus created, which, in operation, progresses axially between the said ports, transporting fluid trapped within it from one to the other.