baber/WOPTO huggingface dataset:
Patent NO-171885-C (NO)
Inventor: SU KAI CHIANG
IPC: G02C13/00
Filed: 1986-04-18
Abstract: An ophthalmic solution for improving the exchange of fluid in the area outside a hydrogel contact lens with the fluid in the area underneath the hydrogel contact lens comprising: (a) a hydrogel contact lens flattening agent in an amount form 0.0005% by weight to an amount equivalent to 330 millions moles/kg, optionally (b) an ophthalmically acceptable ionic salt in an amount sufficient to render said solution substantially isotonic, and (c) an ophthalmically acceptable viscosity enhancing agent sufficient to cause the composition to have a Brookfield relative viscosity of 3 to 50 cps. The invention also includes a method for improving the exchange of fluid in the area outside a hydrogel contact lens with the fluid in the area underneath the hydrogel contact lens in a human eye comprising adding to said eye an effective amount of such ophthalmic solutions.
Patent NO-164697-C (NO)
Inventor: TOERMAELAE PERTTI
IPC: A61B17/68
Filed: 1986-05-07
Abstract: Surgical osteosynthesis composite material, which is self-reinforced i.e. it is formed about the absorbable polymer or copolymer matrix which is reinforced with the absorbable reinforcement units which have the same chemical element percentage composition as the matrix has.
Patent NO-174359-C (NO)
Inventor: MCSHERRY THOMAS W
IPC: F16B13/04
Filed: 1988-05-03
Abstract: A multi-function integrally molded plastic fastener (10) for insertion within a hole in a wall for fastening objects to any of solid, thick or thin hollow walls. The fastener (10) comprises a base element (1) and an anchoring element with the base element (1) being positioned within the hole and depending whether the wall is solid, thick or thin hollow wall, the anchoring element is positioned totally within, partially within and totally behind the wall respectively. The anchoring element is comprised of outstretched anchoring arms (4) which are collapsible for insertion within the hole and which arms have interfitting sections of a sinusoidal wave configuration (10a, 11a, 10b, 11b) to minimize the cross section of the anchoring element and the width required for the hole. In preferred embodiment a stiffening rib (15) is interposed between wave crests (10a, 10b) and wave troughs (11a, 11b). The ends of the arms (9), spaced from the base element (1), engage an external fastening member (16) thereby providing a solid anchorage in any of a solid, thick or thin hollow wall. <IMAGE>
Patent NO-174889-C (NO)
Inventor: MOHRS KLAUS
IPC: C07D215/18
Filed: 1989-05-16
Abstract: Substituted 4-(2-quinolinylmethoxy)phenylacetic acid derivatives can be prepared from corresponding 4-(2-quinolinylmethoxy)phenylacetic esters. The compounds can be employed in medicaments.
Patent NO-175105-C (NO)
Inventor: VAHERI MARJA
IPC: D21C9/10
Filed: 1989-09-18
Abstract: The invention concerns a procedure for the bleaching of pulp, in which procedure an oxidating bleaching chemical containing chlorine is used. The essential feature of the invention is that the pulp is treated, either in conjunction with or before oxidation, with a lignin-modifying oxidation-reduction enzyme, such as the lactase produced by the white-rot fungus. The oxidating bleaching chemical used in the procedure may be chlorine dioxide or a mixture of chlorine dioxide and chlorine gas. The use of said enzyme reduces the amount of chlorophenols and other forms of organically bound chlorine in the spent bleach liquor, simultaneously lowering its chemical oxygen demand.
Patent NO-173935-C (NO)
Inventor: BEEVOR ROBERT GEORGE
IPC: C07C51/12
Filed: 1990-12-05
Abstract: A process for preparing a carboxylic acid having (n+1) carbon atoms (e.g. acetic acid) from an alcohol having n carbon atoms (e.g. methanol) by liquid phase, rhodium catalysed carbonylation is provided. The process is characterised by using a catalyst stabiliser selected from certain classes of imidazolium iodides, alkyl substituted pyridinium iodides and hydroxypyridinium iodides. Most preferred are those derived from the amines 2-ethyl-4-methylimidazole, 4-methylimidazole, 4-ethylpyridine, 4-t-butylpyridine and 3,4-lutidine by quaternisation with a methyl group.
Patent NO-179609-C (NO)
Inventor: BRAISH TAMIM F
IPC: C07C211/42
Filed: 1993-09-03
Abstract: A novel process for converting trans-isomeric N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthaleneamine to cis-isomeric N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthaleneamine is disclosed. The process involves contacting trans-isomeric N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthaleneamine, or a mixture of same with up to about an equal part by weight of the corresponding cis-isomer, with a basic equilibration agent like potassium tert.-butoxide in a reaction-inert polar organic solvent to ultimately afford a cis/trans-mixture wherein the amount of cis-amine present in said mixture achieves a constant value of about 2:1 on a weight-by-weight basis. The aforesaid resultant mixture is useful as an intermediate product that ultimately leads to pure cis-(1S) (4S)-N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthalenea mine (sertraline), which is a known antidepressant agent.
Patent CA-2005376-C (CA)
Inventor: BAIRD JAMES RUSSELL
IPC: G21F9/34
Filed: 1989-12-13
Granted: 1996-11-19
Abstract: A method for the disposal of nuclear and toxic waste materials comprising the placing of waste materials into waste repositories radiating from an access tunnel constructed into a subtending tectonic plate adjacent or as near as possible a subduction zone.  The waste materials descend within the tectonic plate into the mantle of the earth.
Patent CA-2011320-C (CA)
Title: Auto-blocking shaft component
Inventor: KLAUE KAJ
IPC: A61F2/36
Filed: 1990-03-02
Granted: 1995-09-12
Abstract: A shaft-part for a joint-end prosthesis or bone-shaft replacement and is implantable in a tubular bone 1, including a hollow, frusto-conical braid 5 constituted by two mutually crossing series of fibers 2,3.  When traction is exerted on the fibers 2,3, the frusto-conical braid narrows; if, on the other hand, compression is exerted on the fibers 2, 3, the diameter of the frusto-conical braid 5 widens.  These effects may be used on one hand to implant while the shaft rests areally against the marrow cavity 13 and on the other hand to remove the shaft without complications in case of new operations.
Patent CA-2016351-C (CA)
Title: Cosmetic composition
Inventor: GIBSON WALTER THOMAS
IPC: A61K8/00
Filed: 1990-05-09
Granted: 1996-09-03
Abstract: A preserved composition suitable for topical application to mammalian skin or hair for inducing, maintaining or increasing hair growth comprises :       (i)  a special ester of pyroglutamic acid; and (ii)  a cosmetically acceptable vehicle for the ester.
Patent CA-2023885-C (CA)
Title: Low fat fried snack
Inventor: LODGE RICHARD WORTHINGTON
IPC: A23L33/20
Filed: 1990-08-23
Granted: 1996-02-27
Abstract: A process for preparing low fat shaped snack products having a light, crispy, crunchy texture is disclosed.  A dough is formed from 50% to 70% flour, preferably potato flour, at least 3% hydrolyzed starches and a relatively low level of water (20% to 40%).  This dough is formed into a sheet from which snack pieces are cut.  The snack pieces are fried to provide a snack having 20% to 32% fat and having more and better flavor.
Patent CA-2029548-C (CA)
Title: Method for providing solids-free production from heavy oil reservoirs
Inventor: JENNINGS ALFRED R JR
IPC: E21B43/24
Filed: 1990-11-09
Granted: 1997-11-25
Abstract: A method for controlling formation fines when producing heavy oil from an unconsolidated sand formation where at least two wells are utilized.  Both wells are perforated and hydraulically fractured at a lower interval via a viscous gel fluid having a sized and high temperature resistant proppant therein.  The proppant is a size sufficient to filter fines from the oil, thereby keeping the fracture clear.  Cyclic steam-flooding and oil production are conducted in one well, while the other is shut-in.  This sequence is continued until steam breaks through at the lower interval from a first well into a second well.  Afterwards, production packers with knock-out plugs are used to isolate the lower interval of both wells.          Cyclic steam injection and oil production are continued in the upper interval of both wells.  Subsequently, both wells are shut-in and production strings are directed to the lower formation interval through the knock-out plugs.  Steam is then injected down the lower level of both wells and oil is produced from the upper level through the annuli of both wells.
Patent CA-2031303-C (CA)
Title: Data network message broadcast arrangement
Inventor: CARAM BRUCE E
IPC: H04L12/18
Filed: 1990-11-30
Granted: 1996-06-25
Abstract: A facility is provided in a data network to prevent a so-called connectionless broadcast message from flooding the network as a result of each network node retransmitting such messages to its neighboring nodes even though a neighboring node may have received them from another neighbor. Specifically, a node x that receives a connectionless broadcast message retransmits the message to a neighboring node y only when node x finds that it is closer to the source of themessage than node y is including any other neighbor of node y.
Patent CA-2032399-C (CA)
Title: Lineman's safety strap assembly
Inventor: LORTIE MICHEL
IPC: A62B35/00
Filed: 1990-12-17
Granted: 1996-09-03
Abstract: A lineman's safety strap assembly for attachement to a body belt, comprises: a pole strap having two ends; a cross belt strap extending between the two ends of the pole strap in order to form therewith a loop; the loop being able to open and close in order to engage and disengage the loop to and from a utility pole; two side straps; coupling clips for detachably connecting each side straps to the body belt; and connectors for connecting the side straps,  cross-belt strap and pole strap together in such a manner that a lineman wearing the body belt is retained by the loop when the loop is closed around the pole and the body belt is connected to the side straps;  at least one of the side straps being integral and continuous with the cross belt strap; the connectors means comprising a belt slide rigidly connected to at least one of the ends of the pole strap, for receiving and slidably holding the cross-belt strap.  In the event of a fall,  a weight of the lineman connected by the body belt to the side straps will apply a force on the at least one of the side straps and pull the cross-belt strap through the belt slide,  thereby resulting in a shortening of the cross-belt strap and a tightening of the loop around the pole.
Patent CA-2033243-C (CA)
Title: Phenylethanolaminomethyltetralins
Inventor: CECCHI ROBERTO
IPC: A61P27/02
Filed: 1990-12-27
Granted: 1998-07-07
Abstract: New phenylethanolaminomethyltetralins of formula (I) <see fig.I>   wherein -  E  represents  hydrogen,  (C1-C4)alkyl,  (C1-C4)alkoxy, phenyl, nitro, halogen, or trifluoromethyl, -  L  represents  hydrogen,  (C1-C4)alkyl,  (C1-C4)alkoxy, phenyl, nitro, or halogen, or - E and L taken together represent a group -CH=CH-CH=CH-or -CH2-CH2-CH2-CH2-, and - G represents hydrogen, chloro, hydroxy or an -OG' group wherein  G'  represents  a  (C1-C4)alkyl  group  either unsubstituted or substituted with hydroxy, (C1-C4)alkoxy, (C1-C4)alkoxycarbonyl, carboxy, or (C3-C7)cycloalkyl ; a  (C3-C7)cycloalkyl  group ;   or  a  (C2-C4)alkanoyl group ; and  salts  thereof,  are  described  which  showed  to  be active  as  intestinal  motility  modulating  agents  and intraocular hypertension lowering agents. Also described is a process for the preparation of the new compounds and the intermediates of formula (III) <see fig.II>   employed in said process.
Patent CA-2033930-C (CA)
Title: Consumable electrode arc welding method and apparatus
Inventor: TAKANO HIDEAKI
IPC: B23K9/16
Filed: 1991-01-10
Granted: 1994-07-26
Abstract: A method of consumable electrode arc welding is shown wherein the leading consumable electrode wire is mounted in parallel with a trailing filler wire, the latter inserted into a molten metal bath.  Welding current is divided between the consumable electrode wire and the filler wire.  These modifications improve the wettable boundary of the molten metal bath, prevent defects in the weld, and provide a high speed, highly efficient and high quality method of welding carbon steels, alloy steels, as well as aluminum and its alloys in a fully automatic as well as a semiautomatic operation.  In an apparatus utilizing the above method, a single torch contains the consumable electrode and filler wire.  One or more insulating contact tubes containing filler wire are mounted in a gas shield in parallel with a conductive contact tube containing consumable electrode wire.  The unit is small in size and light-weight, and thus convenient for a welder to carry or hold during operation.          Appropriate selection of one of the filler wires provided allows multidirectional operation without reorienting the torch.  The unit produces a high-quality weld at rapid welding rates and is suitable for automatic and semiautomatic operation.
Patent CA-2036488-C (CA)
Title: A process for the production of fillers modified with organosilicon compounds, the fillers thus modified and their use
Inventor: WOLFF SIEGFRIED
IPC: C09C1/30
Filed: 1991-02-15
Granted: 2002-05-14
Abstract: A process for the production of fillers modified with organosilicon compounds, the fillers thus modified and their use.      The invention relates to a two-step process for the surface modification of natural or synthetic oxidic or silicate fillers using organosilicon compounds correspond-ing to the following formulae (see formulae I or II) in which the filler and the compound are intensively mixed in the absence of further solvent and the homogenized mixture is subjected to the hydrophobicizing reaction in the preheated mixer.
Patent CA-2036679-C (CA)
Title: Optical multiplexer/demultiplexer
Inventor: DRAGONE CORRADO
IPC: G02B6/28
Filed: 1991-02-19
Granted: 1995-11-21
Abstract: This invention is an optical Multiplexer/Demultiplexer, built from a plurality of optical waveguides. Each waveguide differs in length from its neighboring waveguide by a predetermeined amount. The waveguides are strongly coupled to one another at their respective ends, and substantially uncoupled therebetween, allowing for high efficiency.
Patent CA-2042779-C (CA)
Title: Automatic channel sampling picture-in-picture circuitry
Inventor: DUFFIELD DAVID JAY
IPC: H04N5/45
Filed: 1991-05-16
Granted: 1995-11-21
Abstract: An automatic channel sampler system, including a television signal tuner, displays an array of inset pictures on a display screen each time the receiver is turned on. Each inset picture is a still video picture (i.e, freeze-frame) selected by tuning each of the channels in a scan list of channels. Automatic channel sampling is initiated in response to the development of operating power, and is performed while the picture tube is dark during the time in which the picture tube is warming up. A separate user-enterable scan list may be provided for either the automatic channel sampling function, a manually initiated channel sampling function, or both. The separate scan list may be programmed to contain only those channels which the viewer regularly watches, and would have the triple advantages of excluding the sampling of channels carrying programming which is not of interest to the viewer, presenting the sampled images in whatever order is desired by the user, and shortening the time necessary to complete the channel sampling function by eliminating the sampling of the undesired channels.
Patent CA-2043025-C (CA)
Title: Medium voltage circuit breaker
Inventor: DUFOURNET DENIS
IPC: H01H33/915
Filed: 1991-05-22
Granted: 1994-11-22
Abstract: Medium-voltage circuit-breaker comprising a leaktight insulating envelope (1) filled with a gas with good dielectric properties, a semi-fixed arc contact (3) connected electrically to a first current intake (2) and a moving contact (10) connected to an operating mechanism and connected up electrically to a second current intake (11), characterised in that the semi-fixed arc contact (3) is linked to a piston (4) which can move in a blast volume (VI) delimited in particular by the inner wall of an insulating cylinder (8) inside the said envelope and a first face (7A) of a blast nozzle (7), the said piston being thrust by a spring (9) kept taut when the circuit-breaker is in the engaged position, the said circuit-breaker comprising a thermal expansion volume (V2) delimited in particular by the inner wall of the said insulating cylinder (8), a second face (7B) of the nozzle and a transverse partition (11) through which the moving contact (10) slides, means being provided so that when a high-intensity current is cut, the piston (4), after having accomplished its travel in the direction of compression of the blast volume (V1), cannot move in the opposite direction. 
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Patent CA-2047458-C (CA)
Title: Ethylene copolymer and method of producing same
Inventor: OKADA TADAO
IPC: C08F210/02
Filed: 1991-07-19
Granted: 2000-09-19
Abstract: A copolymer is manufactured by allowing ethylene (A) and a vinyl compound (B) represented by the following general formula to undergo radical polymerization at a pressure of 1000-5000 kg/cm2 and a temperature of 100°-400°C, (see formula I) wherein R1 and R2 are each, independently hydrogen or a methyl group, R3 is a hydrogen atom or an alkyl group of 1-4 carbon atoms; a ratio of (B) to the sum of (A) and (B) is less than 1 mol %; a proportion of the amount of vinyl compounds (B), which are not successively bonded at all to the units (B) in the chain, but bonded to unlike units (A) on both sides thereof, to the total amount of (B) units in the copolymer is at least a 83%; and the MFR of the copolymer ranges from 0.1 to 200g/10 min. Although the copolymer contains only a small amount of the vinyl compound (B) it nevertheless has excellent photo stabilizing effects.
Patent CA-2051296-C (CA)
Inventor: GROUFFAL CHRISTIAN
IPC: H03L7/00
Filed: 1991-09-13
Granted: 2001-06-12
Abstract: Un ensemble de numérisation du type à sur-échantillonnage comporte un convertisseur-analogique-numérique produisant à une fréquence F=kf des échantillons de format réduit p et un filtre numérique qui par sommation d'un certain nombre n de sur-échantillons, produit des échantillons validés de format P à la fréquence f, à des instants fixés par une horloge. Pour recaler les instants d'échantillonnage par rapport à un événement extérieur pouvant survenir à tout moment, on interpose entre le convertisseur et le filtre une mémoire de stockage temporaire et, en fonction de l'instant d'arrivée de cet événement, on sélectionne les échantillons appropriés à envoyer vers le filtre pour leur sommation.  Application à la synchronisation de systèmes d'acquisition sismiques par exemple.
Patent CA-2062535-C (CA)
Title: Process for the preparation of chlorinated carboxylic acid esters
Inventor: GALLEGRA PASQUALE
IPC: C07C69/65
Filed: 1992-03-09
Granted: 1997-12-23
Abstract: The invention relates to a novel process for the preparation of chlorinated carboxylic acid esters of formula I                    (I) wherein R1 is alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or aryl and R2 is hydrogen, alkyl or cycloalkyl, which process comprises reacting an acylal of formula II                             (II) with thionyl chloride.
Patent CA-2065414-C (CA)
Title: Treatment of autoimmune disease
Inventor: CHANG TSE-WEN
IPC: C07K16/00
Filed: 1990-09-14
Granted: 2007-05-15
Abstract: Autoimmune diseases are associated with particular immunoglobulin isotypes, particularly the isotypes IgG or IgM, and can be treated by specifically suppressing the production of that immunoglobulin isotype or subtype. Isotypic-specific suppression can be achieved by administering peptides which have an amino acid sequence corresponding to the extracellular segment of the membrane-bound domain (the "migis" segment) of an immunoglobulin of the isotypic class or subclass or an epitope.thereof.  Suppression can also be achieved by administering antibodies and related and derivative products specific for the migis segment.
Patent CA-2070229-C (CA)
Title: Optical cable
Inventor: KATURASHIMA WATARU
IPC: G02B6/44
Filed: 1992-06-02
Granted: 1997-03-25
Abstract: Provided is an optical cable using multifiber optical units.  Each of said multifiber optical units has a lamination body of a tape-type optical unit accommodated in a groove formed in a rod-like member.   The tape-type optical unit is constituted by a plurality of optical fibers arranged in one row and coated collectively.   The improvement is that the distance between the center of the rod-like member and a bottom portion of said groove is made to be equal to or larger than a half of the height of the lamination body to thereby reduce side pressure exerted on the tape type optical units 1 at the groove bottom portion thereof.
Patent CA-2071308-C (CA)
Inventor: CUDINI A MARIO
IPC: B23B3/32
Filed: 1992-06-16
Granted: 1995-08-22
Abstract: A linear motor piston turning and grooving machine (10) for turning non-round diameters and complex shaped pistons (W) in which a pair of oppositely facing CNC turning modules (14, 16) each are aligned with one of a pair of a vertical axis spindles (30, 32) having chucks (26, 28) for each piston (W). An overhead tailstock assembly (34, 36) is centered over each spindle (30, 32). A grooving mechanism (106, 108) is located to the rear of each tailstock assembly (34, 36) and includes a rocking support shaft (110, 112) for bringing tooling (114, 116) into engagement with the piston (W).
Patent CA-2071442-C (CA)
Title: Damping-solution concentrate and damping solution and use thereof in the offset printing process
Inventor: LAUFS FRITZ
IPC: B41N3/08
Filed: 1992-06-17
Granted: 1994-09-06
Abstract: The invention relates to a damping solution concentrate that basically contains a)  1-15% by weight of buffer substances; b)  2-20% by weight of an additive, consisting of one or more of the substances: water-soluble polysaccharides, polyglycols and polyhydric alcohols; c)  2-10% by weight of preserving agent; d)  0.01-5% by weight of non-ionic, low-foam tenside, consisting of one or several of the substances: tertiary acetylene glycol, ethylene oxide tensides, propylene oxide tensides, fatty alcohol ethoxylates, fatty acid ethoxylates and siloxane alcoxylates; e)  1-35% by weight of a compound of the formulation C4H9-O[-CH2-CH2-O]n-H, whereby n signifies an integer of 1 to 10 or a mixture of these components; f)  0.1-10% by weight of 2-ethyl-1,3-hexane diol; and g)  25-90% by weight of water.
Patent CA-2073194-C (CA)
Title: Magnetic recording apparatus of digital picture signal
Inventor: UETAKE AKIHIRO
IPC: G11B5/09
Filed: 1991-06-05
Granted: 2000-08-01
Abstract: A magnetic recording apparatus of a digital picture signal comprising a block segmenting circuit for converting an input digital picture signal into data segmented by blocks composed of a plurality of picture elements, an encoding circuit for compressing and encoding the output data of the block segmenting circuit by blocks, and a channel encoding circuit for channel encoding the encoded output data from the encoding circuit, wherein the output data from the channel encoding circuit is recorded on a magnetic tape by a magnetic head mounted on a rotation drum, and wherein the magnetic recording apparatus of digital picture data is characterized in that the track pitch formed on the magnetic tape by the magnetic head is 5.5 µm or less, the diameter of the rotary drum is 25 mm or less, and the rotating speed of the rotary drum is 150 rps or more, the track length per unit time is set to particular value thereby.      A long time recording operation with a compact mechanical unit can be performed and the error in respect with track linearity can be decreased.