baber/WOPTO huggingface dataset:
Patent CA-2012132-C (CA)
Title: Marine animal trap entrance gates
Inventor: HENDRICKS LARRY O
IPC: A01K69/08
Filed: 1990-03-14
Granted: 1998-02-17
Abstract: A marine animal trap comprising entrance gate means including a plurality of plastic fingers having a relative  buoyancy  and  arrangement  to  be  maintained closed and to reclose by buoyancy action after an animal enters the trap by buoyant action.  In preferred forms some fingers have a slight positive buoyancy and some have a slight negative buoyancy in water.  A mounting frame  suitably  includes  journal  rods  mounting  said plurality of fingers for pivotal movement in a generally vertical manner, and stop means whereby when the trap is in water the nominal state of rest of at least some of the fingers is with the fingers partially spanning the gate entrance and with such fingers in such position being restrained from outward pivotal movement,  the fingers  being  nonetheless  free  to  pivotally  move inwardly so as to not impede animal ingress through the gate. The form, arrangement and placement of the fingers in the trap can vary.  In one embodiment, all fingers of a given buoyancy are arranged coaxially in a row across the gate.   In other embodiments,  positively buoyant fingers  and  negatively  buoyant  fingers  alternately arranged in each row of fingers.
Patent CA-2014516-C (CA)
Title: Transparent, compact polyurethane casting compositions that are sterilizable with superheated steam, process for preparing same, and their use, particularly for medical-technical particles
Inventor: HORN PETER
IPC: C08G18/66
Filed: 1990-04-12
Granted: 1997-12-30
Abstract: The invention relates to transparent, substantially compact polyurethane casting compositions, sterilizable with superheated steam, which are prepared by the reaction of:         A)  modified diphenylmethane diisocyanates (A) that are liquid at 23°C and are in turn are obtained by the reaction of 1)   a diphenylmethane diisocyanate isomer mixture, which in terms of 100 parts by weight comprises 60 to 90 parts by weight of 4,4'-diphenylmethane diisocyanate, 40 to 8 parts by weight of 2, 4'-diphenylmethane diisocyanate, and 0 to 5 parts by weight of 2,2'-diphenylmethane diisocyanate with 2)   at least one polyoxypropylene polyol initiated with glycerine and/or trimethylol propane, having a molecular weight of 350 to 800 with a ratio of NCO:OH groups of 2.5:1 to 15:1, with B)   at least one compound having at least two reactive hydrogen atoms in the presence or absence of C)  catalysts, as well as to a process for preparing the polyurethane casting compounds and their use for medical-technical articles.
Patent CA-2016311-C (CA)
Title: Well clean out tool
Inventor: FERGUSON FRED S
IPC: E21B27/00
Filed: 1990-05-08
Granted: 1994-10-25
Abstract: A well clean out tool installed in a drill string is operable to pump sand and debris from the well bore.   A pump portion  includes  an  elongate  pump  barrel  having  apertures extending through  its  side wall at the upper end which is attached at its bottom end to one or more the debris-receiving and trapping subs and enclosed at its upper end by a top cap having a hexagonal opening.   A hexagonal pump mandrel extends through the top cap and is connected to the bottom of the drill string by a top sub having apertures through its side wall whereby the pump barrel may be rotated with the drill string.  A swab assembly contained within the pump barrel and connected to the bottom end of the pump mandrel is reciprocated thereby.  The swab assembly includes a cruciform swab bypass mandrel having longitudinal fluid bypass channels with stop shoulders at each end thereof.   One  or more  swab cups having internal metal sleeves ride on the exterior of the bypass mandrel.  On the down stroke, the swab bypass mandrel moves down relative to the swab cups to allow passage of fluid through the bypass channels and the apertures in the pump barrel and the valves in the lower subs close to capture sand and debris in the subs.  On the up stroke,  the bypass mandrel moves up and the lower swab cup closes off the bypass channels.  As the swab assembly is raised relative to the pump barrel, the valves open allowing sand and debris to enter the lower subs and the fluids within the pump barrel are discharged are discharged through the pump barrel outlets.
Patent CA-2021275-C (CA)
Title: Recovering a sulphur-containing fluid
Inventor: WILLIAMS PETER J
IPC: E21B43/16
Filed: 1990-07-16
Granted: 2001-11-20
Abstract: Method of recovering a normally gaseous fluid containing sulphur compounds and elemental sulphur from an underground reser-voir (5), which method comprises constructing a well (3) extending to the underground reservoir (5) and arranging in the well (4) an open-ended tubing (12) extending to surface which tubing (12) is provided at its lower end with an annular seal (13) and with three inlet conduits (15, 25 and 26) allowing fluid flow from outside the tubing (12) to inside the tubing (12) which inlet conduits (15, 25 and 26) are located between the annular seal (13) and the surface, allowing reservoir fluid to enter into the lower end of the tubing (12), supplying gas to the inlet openings of the inlet conduits (15, 25 and 26), and introducing a solvent for sulphur into the reservoir fluid upstream to the lowermost inlet conduit (15).
Patent CA-2022478-C (CA)
Title: Solid cosmetic composition
Inventor: FUNATSU SHINICHIRO
IPC: A61K8/00
Filed: 1990-08-01
Granted: 2000-10-17
Abstract: A solid cosmetic composition comprising a freeze-dried product of an aqueous solution containing at least a water-soluble substance which is solid at normal temperature, arid a water-soluble polymer as a thickener or a humectant, which solid cosmetic composition is used after being dissolved in a solvent.
Patent CA-2023946-C (CA)
Inventor: SATO TORU
IPC: F01N13/18
Filed: 1990-08-24
Granted: 1994-03-01
Abstract: Abstract of the Disclosure The known muffler of an industrial engine, in which a channel communicating with an exhaust gas outlet is integrally formed on the inside of a muffler main body made of an aluminium diecast, and an inner lid is mounted to the open side of the channel to form an exhaust gas passageway serving also as a tail pipe, within the muffler main body as disclosed in Japanese Utility Model Applica-tion No. 63-127369 (1988) is improved.  The improvements reside in that a cross-section area of the channel is reduced gradually or in a stepwise manner from its inlet towards the exhaust gas outlet so as to prevent carbon from adhering to the exhaust passageway, and in that at the exhaust gas outlet is formed a projecting wall adapted to butt against the inner lid, integrally with the muffler main body so as to prevent the exhaust gas escape without passing through the exhaust gas passageway.
Patent CA-2026345-C (CA)
Title: Auto-tuning circuit for an active filter used in video signal processing
Inventor: SUMIYOSHI HAJIME
IPC: H04N9/64
Filed: 1990-09-27
Granted: 1995-07-04
Abstract: An auto-tuning circuit for automatically adjusting the transfer function of an active filter for processing video signals.  A voltage-controlled filter is used as active filter, for imparting a predetermined transfer characteristic to a signal having a component related to a television signal.  The transfer characteristic can be adjusted in accordance with a voltage.  The auto-tuning circuit comprises PLL section connected to the voltage-controlled filter, and switching circuit.  The PLL section applies to the voltage-controlled filter a control voltage corresponding to the phase difference between a reference signal and an output signal obtained by passing the reference signal through the voltage-controlled filter.  The switching section allows trans-fer of signals between the voltage-controlled filter and the PLL section for at least one of the horizontal blanking period and vertical blanking period of the tel-evision signal.
Patent CA-2029710-C (CA)
Title: Hollow stackable building block
Inventor: LEWIS JOHN F
IPC: E04B1/12
Filed: 1990-11-09
Granted: 1994-08-02
Abstract: ABSTRACT      A lightweight, hollow building block is disclosed.  The building block preferably has a rectangular base and an open pentagonal top.  Two adjacent sides of the block form right angles with the base and the top.  The three remaining adjacent sides are inclined outwardly from the base at an angle which permits the blocks to be stacked one inside another.  When four such blocks are arranged in a double-wide and double-long pattern, they form a rectangular, vertical sided building unit.  A building is constructed from the blocks by laying a course at the time and preferably filling the open, upturned blocks in each course with some locally available filler material to lend weight and stability to the structure.
Patent CA-2031204-C (CA)
Title: A process for the production of low cholesterol butter fat or butter, butter (fat), as well as an installation for its production
Inventor: HOCHE HERMANN
IPC: A23C15/14
Filed: 1990-04-20
Granted: 1996-11-19
Abstract: A process for the production of low cholesterol butter fat or butter by steam treatment, wherein the fat is treated with steam in one or more horizontal or slightly inclined reaction pipes at a temperature of from 195 to 250° C and at a pressure of from 0.5 to 5 mbar, the steam is injected from one or more steam pipes arranged parallel with each other which extend through the layer which conducts the liquid fat (oil) along the entire length of the reaction pipe and having boreholes in the pipe wall as outlet apertures for the steam, into the oil stream flowing in the reaction pipe axial direction, the vapors are separated and the fat is cooled, to which optionally fat recombination substances may be added. The low cholesterol butter fat or butter can be obtained in an installation which contains expediently a plurality of reaction pipes, and can be advantageously used for the production of nutrients and luxury foodstuffs, in particular for diatetic products, or can be consumed directly or processed as a diatetic fat.
Patent CA-2034067-C (CA)
Title: A process for the production of uncoated technical fabrics with low air permeability
Inventor: KRUMMHEUER WOLF
IPC: D03D1/00
Filed: 1991-01-11
Granted: 2000-10-17
Abstract: A process fox the production of uncoated technical fabrics in a dense weave with low air permeability, the fabric consisting of polyamide filament yarns with a hot air shrinkage of 6 to 15% (determined at 160~C) and having an at least substantially symmetrical fabric construction.      The fabric is adjusted to the required air permeability by a treatment in an aqueous bath at 60 to 140°C.
Patent CA-2041933-C (CA)
Title: Coupling component and method of making the same
Inventor: LATSKO JAMES MICHAEL
IPC: F16D3/80
Filed: 1991-05-07
Granted: 1996-09-03
Abstract: An improved coupling component includes an annular tube which is inflatable to move friction shoe assemblies into engagement with another component of a coupling. Elastomeric mounting material is connected with the tube and is molded in place against the friction shoe assemblies.  The molded elastomeric mounting material extends around torque transmitting elements, such as pins, connected with backing plate of the friction shoe assemblies to connect the elastomeric mounting material with the friction shoe assemblies.  When the coupling component is to be constructed, the tube and a plurality of friction shoe assemblies are placed in a mold.  The tube is then expanded under the influence of fluid pressure to press elastomeric mounting material against the friction shoe assemblies.  Upon application of heat, the elastomeric mounting material is molded around torque transmitting elements connected with the friction shoe assemblies.
Patent CA-2045481-C (CA)
Title: Immunosupressing agent and process of producing the same
Inventor: NAGASE HIROSHI
IPC: C07D491/18
Filed: 1990-11-28
Granted: 1995-11-14
Abstract: An immunosuppressive agent which has low toxicity and which exhibits excellent effectiveness even if it is orally administered is presented.  The immunosuppressive agent of the present invention is characterized in that it contains .delta.-opioid antagonist having high selectivity to .delta.-opioid receptor.  The present invention also provides a process of producing a naltrindole derivative characterized by reacting naltrexone or a salt thereof with a phenylhydrazine derivative in a solvent in the presence of methanesulfonic acid.
Patent CA-2047228-C (CA)
Title: Integral reconstitution device
Inventor: BONNICI PAUL J
IPC: A61M5/34
Filed: 1991-01-14
Granted: 1996-10-01
Abstract: The device of the present invention includes a flexible container (12) hav-ing an administration port (24) and a flexible tube (30) extending therefrom. The administration port (24) includes an access membrane through which a spiked cannula can be inserted to gain access to the interior of the flexible container(12). The flexible tube (30) contains a frangible or breakaway valve (74) therein. Permanently secured to the end of the flexible tube (30) is a sheath (32) having a substantially circular base (34) and an open-ended skirt (36) including an innersurface (62) depending from the base (34). The skirt (36) includes a plurality of inwardly projecting bumps (60) intermittently spaced around the inner surface (62) to sealingly engage a standard drug vial. A sharp cannula (64) is mounted within the skin (36) to pierce the stopper of the standard drug vial to establish fluid communication between the cannula (64) and the interior of the drug vial. A peelable closure (40) is provided covering the skirt (36) opening prior to use to maintain a sterile condition of the device. A lumen (72) is provided in housing to establish fluid communication between the cannula (64) and the frangible or breakaway valve (74).
Patent CA-2047755-C (CA)
Title: Pelletizing phosphoroamidothioate derivatives with fertilizers and other pesticides
Inventor: CHAN JIM H
IPC: A01N57/28
Filed: 1991-01-29
Granted: 1999-08-10
Abstract: A method of making insecticidal pellet compositions of N-hydrocarboyl phosphoroamidothioates and phosphoroamido-dithioates, combined with a herbicide, fungicide, fertilizer or other insecticide is provided.
Patent CA-2049428-C (CA)
Title: Atm communication system
Inventor: SHOBATAKE YASURO
IPC: H04L49/111
Filed: 1991-08-19
Granted: 1996-06-18
Abstract: A ATM communication system can satisfy various requests from a node system, a link system, and the like, by performing a self-format transform between a format to be transmitted and a format receiving an ATM switch, and using a cell processing function for performing polishing/shaping, counting of passed cells, counting of discarded cells, drop/insertion of OAM cell, and the like.
Patent CA-2049643-C (CA)
Inventor: HEDSTRAND DAVID M
IPC: C08F271/00
Filed: 1991-08-21
Granted: 2004-10-05
Abstract: This invention discloses non-crosslinked, poly-branched polymers having a comb-burst configuration and a process for preparing such polymers.
Patent CA-2052628-C (CA)
Inventor: TVEIT GARY L
IPC: B65H41/00
Filed: 1991-10-02
Granted: 1995-07-18
Abstract: An apparatus and method are disclosed for removing a sheet or layer such as a release sheet (56) from a workpiece.  A pair of pinch rollers (18,24)grasps a lifted portion (60) of the release sheet and drives the release sheet therebetween to plate means (34,36) that guide the release sheet away from the pinch rollers.
Patent CA-2061328-C (CA)
Title: Apparatus and a method for an electrical transmission-line interface
Inventor: JACOBOWITZ LAWRENCE
IPC: H01P1/04
Filed: 1992-02-17
Granted: 1995-02-14
Abstract: The present invention relates generally to a new interface and a method for making the same,  and more particularly,   to   an   electrical   transmission-line interface  and  a  method  for  making  the  same.   On  a substrate having  semiconductors,  a driver or receiver circuit  is  provided  to  interface  with  an  electrical transmission-line.   Integral  means  for  the  electrical transmission-line alignment, support and transit through a sealed environment is also provided.   A fluid tight seal can also be provided for the various components that are in the interior of the housing.  Variable time-delay means is provided for a computer clock system or other microwave applications.
Patent CA-2062751-C (CA)
Title: Key allocation in public communications systems taking account of security gradations
Inventor: MARKWITZ WERNHARD
IPC: H04L9/32
Filed: 1990-04-05
Granted: 2000-08-08
Abstract: A public communication system for a plurality of communication services (ISDN) has an arrangement for the authentification of the subscriber stations (TLN A, TLN B) for the key transmission. For a first security level this authentification arrangement has an arrangement for monitoring the time frame (ZU) of the key transmission and/or an arrangement (A) for the indication of the agreed key in reduced form at the subscriber end, and for a second security level a key management station (SMZ) for authenticated traffic handling.
Patent CA-2064655-C (CA)
Title: Process for preparing detergent compositions
Inventor: EUSER HUIG
IPC: C11D17/06
Filed: 1992-04-01
Granted: 1996-12-10
Abstract: A process for preparing a liquid surfactant composition comprising an anionic surfactant and a nonionic surfactant and having a relatively low water content, whereby essen-tially equimolar amounts of a neutralizing  agent and a liquid acid precursor of the anionic surfactant are blended simultaneously in the presence of the nonionic  surfactant. The process is especially suitable for preparing mixtures of nonionic and primary alkyl sulphate.
Patent CA-2066409-C (CA)
Title: Anti-hypertensive compositions of secondary amine-nitric oxide adducts and use thereof
Inventor: KEEFER LARRY KAY
IPC: A61K31/5375
Filed: 1990-09-07
Granted: 1996-10-22
Abstract: This invention concerns anti-hypertensive compositions and a method of lowering blood pressure in mammals. The active component of the compositions is a compound of formula (1), wherein R1 and R2 are independently chosen from straight chain and branched chain C1-C12 alkyl groups and benzyl, with the proviso that no branch occur on the alpha carbon atom of the alkyl groups; or R1 and R2 together with the nitrogen atom are bonded to form a pyrrolidino, piperidino, piperazino or mor-pholino group M + x is a pharmaceutically acceptable cation, wherein x is the valence of the cation.
Patent CA-2070823-C (CA)
Title: Neurologic agents for nasal administration to the brain
Inventor: FREY WILLIAM H II
IPC: A61K9/00
Filed: 1990-12-04
Granted: 1999-01-12
Abstract: Disclosed is a method for transporting neurologic therapeutic and/or diagnostic neurologic agents to the brain by means of the olfactory neural pathway and a pharmaceutical composition useful in the treatment and diagnosis of brain disorders.
Patent CA-2075805-C (CA)
Title: Novel process for producing semicarbazide
Inventor: MAEKAWA TSUKASA
IPC: B01J31/04
Filed: 1991-06-13
Granted: 1999-03-23
Abstract: A process for producing semicarbazide which comprises reacting a compound of formula (I) with ammonia in the absence or presence of a catalyst comprising a chloride, hydroxide, sulfate, carbonate, acetate, salicylate, amine complex or ethylenediamine complex of zinc or cadmium, or a mixture thereof. This process is advantageous in that it is free from the problem of the use of a large amount of sodium hydroxide and the generation of by-product sodium carbonate.
Patent CA-2082009-C (CA)
Inventor: POLLACK SCOTT BRADLEY
IPC: F16H61/12
Filed: 1992-11-03
Granted: 1997-03-25
Abstract: An improved adaptive pressure control which accounts for nonlinearity in the relationship between fluid pressure and shift time.  To account for nonlinearity in the relationship between cumulative shift time error and corrective pressure, the control utilizes an empirically derived table of shift time vs. controlled pressure to develop a raw pressure error in lieu of a shift time error.  The adaptive pressure correction, in turn, is developed in relation to the cumulative pressure error.  This removes the effect of system nonlinearity from the adaptive control, allowing more accurate adaptive convergence than was heretofore achieved.
Patent CA-2085337-C (CA)
Title: Buried-type semiconductor laser device
Inventor: KASUKAWA AKIHIKO
IPC: H01S5/00
Filed: 1992-12-14
Granted: 1998-10-20
Abstract: This invention provides a buried-type semiconductor laser device that operates stably and reliably at a high temperature for a prolonged period of time.  A buried-type semiconductor laser device according to the invention comprises a semiconductor substrate 2, a first ridge mesa 8 formed on said substrate 2, said first ridge mesa 8 being covered on the top with at least an active layer 4 and provided at both lateral edges with current blocking layers 9, 10 of p-n reverse junction semiconductors arranged along the active layer for confining electric currents, and a second ridge mesa 11 formed by said first ridge mesa 8 and said current blocking layers 9, 10 and provided at both lateral edges with a semi-insulating layer 13.
Patent CA-2092135-C (CA)
Inventor: CASTELLANOS FREDERIC
IPC: C08F2/46
Filed: 1993-03-22
Granted: 1999-11-30
Abstract: L'invention concerne de nouveaux borates d'onium d'un élément des groupes 15 à 17 de la classification périodique ou d'un complexe organométallique d'un élément des groupes 4 à 10 de cette même classification périodique, telle que celle-ci est donnée dans l'ouvrage Chem. \A Eng. News, vol 63, No 5, p 26, 4 février 1985. Ces nouveaux borates ont une entité anionique borate de formule: ¢B X a R b!dans laquelle a et b sont des nombres entiers allant de 0 à 4 avec a + b = 4; les symboles X représentent un atome d'halogène avec a = 0 à 3; une fonction OH avec a = 0 à 2; les symboles R sont identiques ou différents et représentent un radical aryle substitué par au moins un groupement électroattracteur ou par au moins 2 atomes d'halogène, ce lorsque l'entité cationique est un opium: un radical aryle substitué par au moins un atome d'halogène ou un groupement électroattracteur lorsque l'entité cationique est un complexe organométallique. Ces nouveaux borates d'opium dont l'entité anionique a une nucléophilie voisine de celle de SbF6-; sont notamment utilisables comme amorceurs cationiques de polymérisation.
Patent CA-2092661-C (CA)
Title: Modification of vegetable oils using desaturase
Inventor: POUTRE CANDACE GLORIA
IPC: C12N5/10
Filed: 1993-03-12
Granted: 2006-11-07
Abstract: Plant seed having yeast delta-9 desaturase gene therein, preferably in association with a suitable promoter and termination sequence. A method for modifying the fatty acid content of seed oil, by transforming seed with yeast delta-9 desaturase.
Patent CA-2100334-C (CA)
Inventor: HUTCHINSON CHARLES R
IPC: C12N9/10
Filed: 1992-11-17
Granted: 2005-05-24
Abstract: The ability to convert carminomycin to daunorubicin can be conferred on a host by transforming the host with a recombinant vector comprising a gene coding for carminomycin 4-O-methyltransferase.
Patent CA-2100400-C (CA)
Title: Antiferroelectric liquid crystal composite material, process for preparing the same, and liquid crystal element using the same
Inventor: NISHIYAMA SHINICHI
IPC: G02F1/1333
Filed: 1993-07-13
Granted: 1999-06-15
Abstract: An antiferroelectric liquid crystal composite material comprising an organic polymer and an antiferroelectric liquid crystal material, both being in the dispersed state; a process for preparing a liquid crystal element including a step of mixing an organic polymer and an antiferroelectric liquid crystal material; and a liquid crystal element having such a structure that the above-mentioned antiferroelectric liquid crystal composite material is sandwiched between a pair of electrodes are provided.  According to the present invention, there can be obtained a liquid crystal element which is available at a low price, quick in the electrooptical response, free from occurrence of switching failure and is able to make a large display screen.