baber/WOPTO huggingface dataset:
Patent CA-2023902-A1 (CA)
Title: Method for treating organic waste water by methane fermentation and treating apparatus therefor
Inventor: NOMURA TADASHI
IPC: C02F11/04
Filed: 1990-08-23
Abstract: Proliferation activity of methane bacteria in organic waste water can be improved by maintaining the ratio of the amounts of nickel, iron and cobalt contained in the waste water to the BOD thereof to not lower than certain values, and various organic waste waters, such as waste liquor formed during the production of beer and the like, can be treated in a high BOD removal ratio of not lower than 90% while maintaining a high BOD load of not lower than 10 kg/m3~day.
Patent CA-2025248-A1 (CA)
Title: Camera back with heating elements for self-developing film
Inventor: FIORENTINI ACHILLE
IPC: G03B17/52
Filed: 1990-09-13
Abstract: ABSTRACT            We  are  dealing  with a new camera  back  for  the containment  of self-developing film to be used  in various types  of  cameras.   The  camera   back, internally,   contains   a  thermal  detector   and electrical resistances fed by batteries or by mains supply,   which   maintain  the  film  at   optimum temperature.
Patent CA-2026353-A1 (CA)
Title: Process for the production of polychloroprene of moderate viscosity
Inventor: GREVE HEINZ-HERMANN
IPC: C08C19/08
Filed: 1990-09-27
Abstract: A PROCESS FOR THE PRODUCTION OF POLYCHLOROPRENE OF MODERATE VISCOSITY                         A b s t r a c t Products of low viscosity and surprisingly low gel content can be obtained by thermo-oxidative degradation and shearing of polychloroprene.
Patent CA-2028189-A1 (CA)
Title: Polymer stabilizers containing both hindered amine and hydroxylamine moieties
Inventor: SUHADOLNIK JOSEPH
IPC: C07D211/36
Filed: 1990-10-22
Abstract: POLYMER STABILIZERS CONTAINING BOTH HINDERED AMINE AND HYDROXYLAMINE MOIETIES    Abstract of the Disclosure Compounds possessing both a hindered amine moiety, such as a derivative of 2,2,6,6-tetramethylpiperidine, and a hydroxylamine moiety where the N-hydroxy group is not attached to a nitrogen atom in a piperidine ring are valuable stabilizers for protecting polymer compositions against the deleterious effects of actinic light and from the adverse effects of high temperature polymer processing environments.
Patent CA-2030901-A1 (CA)
Title: Epoxy polymeric nonlinear optical materials
Inventor: KESTER JOHN J
IPC: G02F1/361
Filed: 1990-11-26
Abstract: ABSTRACT         The present invention is directed to an epoxy-containing polymeric material having nonlinear optical properties, particularly a glycidyl amine polymer, and a process for making the nonlinear optical (NLO) epoxy-containing polymeric material including poling the polymeric material under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical functionalities in the polymer.  The polymers have enhanced thermal stability and good NLO properties.
Patent CA-2031248-A1 (CA)
Title: Process for purifying paraffin sulphonic acids
Inventor: GENOVA CALOGERO
IPC: C07C303/44
Filed: 1990-11-30
Abstract: "PROCESS FOR PURIFYING PARAFFIN SULPHONIC ACIDS"     ABSTRACT          A process for separating and recovering paraffin sulphonic acids from mixtures with water and sulphuric acid is described, consisting of:  -   bringing such a mixture into contact under extraction conditions with a saturated aliphatic or cycloaliphatic liquid hydrocarbon;          -   separating an aqueous liquid phase containing sulphuric acid from an organic liquid phase consisting of the extraction solvent containing the paraffin sulphonic acids; and -   recovering the paraffin sulphonic acids from said organic liquid phase.          The process is particularly applicable to products obtained from processes involving the sulphoxidation of paraffins with sulphur dioxide and oxygen, catalyzed by U.V. radiation.
Patent CA-2031738-A1 (CA)
Title: Flow regulating valve and system using the same
Inventor: SKOGLUND PAUL K
IPC: F16K17/00
Filed: 1990-12-07
Abstract: ABSTRACT    A substantially constant flow regulating valve includes a piston dividing a bore into two chambers.  The piston is spring biased toward the top chamber of the bore.  Fluid from the inlet enters the top chamber through a reference pressure passage and exerts a downward force on the piston.          Fluid from the inlet also passes through a low torque inlet flow throttle and into the bottom chamber of the bore where it exerts an upward force on the piston in concert with the spring force.  The piston includes an end which variably interacts with an orifice in the lower chamber to maintain a constant pressure differential between the top and bottom chambers.    A coil-type piping system, a diversifying campus-type piping system and a pressure source piping system all include the above described flow regulating valve.  None of these systems require balancing valves or differential pressure valves when the flow regulating valve is employed.
Patent CA-2033305-A1 (CA)
Inventor: TOYOSHIMA GEN
IPC: H03F1/32
Filed: 1990-12-27
Abstract: ABSTRACT OF THE DISCLOSURE An amplifier circuit suitable for use in various types of communication devices, radar systems and the like, wherein a fundamental-wave signal extracted from an input side is converted into a second order signal and the second order signal is shifted so as to be opposite in phase and equal in amplitude to a second order signal produced by an amplifier such as an FET or multistage operational amplifier.  The phase shifted signal is applied to the amplifier output, whereby the second order signal produced by the amplifier can assuredly be equivalently short-circuited and the operation efficiency of the amplifier can be improved.
Patent CA-2035661-A1 (CA)
Title: Intramedullary hip screw
Inventor: BRUMFIELD DAVID L
IPC: A61B17/58
Filed: 1991-02-04
Abstract: An intramedullary hip screw includes an intramedullary rod, a lag screw and a sleeve for slidably receiving the lag screw.  The sleeve is received in a passage in the intramedullary rod having an axis which is oblique to the longitudinal axis of the intramedullary rod such that the axis of the sleeve is directed toward the head of the femur.  The intramedullary hip screw of the present invention permits sliding compression of fractures, particuarly intertrochanteric fractures and fractures of the femoral neck.
Patent CA-2035870-A1 (CA)
Inventor: KAMPER HANS-WERNER
IPC: B60P7/08
Filed: 1990-07-01
Abstract: Dispositif de tension et d'enroulement de sangles d'amarrage constitué d'un moteur d'entraînement et d'un axe de bobinage entraîné par le moteur pour enrouler les sangles. Les sangles présentent un côté plat et le dispositif comporte un mécanisme permettant de mesurer la tension de celles-ci. Le mécanisme de mesure est doté d'une languette détectrice qui touche le côté plat des sangles, ainsi que de deux projections qui guident la languette détectrice et qui sont situées sur les côtés de celle-ci. Les projections présentent des surfaces d'extrémité qui touchent le côté plat des sangles et qui, en combinaison avec la languette détectrice, constituent un mécanisme de mesure en trois points. Ce mécanisme de mesure courbe les sangles à un angle d'inclinaison tel que défini par les trois points de la tangente où les sangles entrent en contact avec les surfaces d'extrémité et la languette détectrice située entre ces dernières; la languette détectrice touche ainsi aux sangles et exerce sur elles une pression de déflexion; le dispositif de détection sert à mesurer la pression de déflexion exercée sur les sangles par la languette détectrice en tant que tension mesurée dans les sangles. Des dispositifs sont fournis pour transmettre la valeur mesurée comme valeur réelle à un circuit de commande qui entraîne le moteur de l'axe d'enroulement de manière à maintenir dans les sangles la tension d'amarrage souhaitée.
Patent CA-2036869-A1 (CA)
Title: Hay bale unroller
Inventor: STAFFANSON LEROY
IPC: A01D87/12
Filed: 1991-02-21
Abstract: ABSTRACT OF THE DISCLOSURE      A device for lifting, transporting and unwinding spirally would cylindrical bales of hay utilizes a spear post mounted upon a grapple framework pivotably attached to the bucket of a front-end loader.  A drive motor, interactive with the spear post, permits controlled positive unwinding of a bale supported upon the spear post.
Patent CA-2040628-A1 (CA)
Title: Epoxy resin composition
Inventor: KAWANO TAKAYUKI
IPC: C08L63/00
Filed: 1991-04-17
Abstract: EPOXY RESIN COMPOSITION     Abstract A liquid epoxy resin composition including an epoxy resin, an amine curing agent and hydrophilic silica and exhibiting good shape retention at a curing temperature.  The composition is stable and does not undergo changes in viscosity even stored at 40 °C for 20 days.   The composition may be obtained by blending a mixture containing an epoxy resin and hydrophilic silica having a thixotropy index of at least 4 with an amine curing agent to obtain a blend, and commingling the blend until the thixotropy index thereof is decreased to 2 or less.
Patent CA-2045284-A1 (CA)
Title: Universal tree stand
Inventor: AMACKER JOSEPH A
IPC: A01M31/02
Filed: 1991-06-18
Abstract: Abstract of the Disclosure A compact, versatile tree stand includes a seating section having at least one pair of longitudinally side members supporting a seat and means for gripping a tree connected at one  end of the side members.   A cross member  is  provided  so as  to  reversibly  extend  the seating  section.    The  cross  member  may  also  be completely removed from the seating section.   A foot supporting section has  a  rectangular  frame which  is divided  into  two  frame  sections.   The  two  frame sections may be  separated so that the  frame  can be reassembled for climbing and use as a tree stand or disassembled  to  reduce  the  length  of  the  foot supporting section for transportation and storage.  The seating section may also be used as a hand climber.
Patent CA-2052267-A1 (CA)
Inventor: ZIEKE LARRY M
IPC: B31B1/90
Filed: 1991-09-25
Abstract: More particularly, the method for producing rolls of the Z-folded closed zipper open web film from a web of  flexible material having at least one male and at least one female zipper element spaced apart thereon includes apparatus which advances the web in a direction of web movement engaging the web, folds the web, the folding being adapted to bring the male and female zipper elements into opposing relationship and form a folded edge above the zipper elements.  The opposing male and female zipper elements are then interlocked whereby a folded lip is defined in the web between the zipper elements and first and second web panels are defined in portions of the web below the zipper elements.   The folded lip is urged to fold substantially flat against one of the web panels and the first and second web panels are unfolded and wound into a roll.
Patent CA-2052875-A1 (CA)
Title: Air current deflector shield
Inventor: PACER GREGORY J
IPC: B60J1/20
Filed: 1991-10-07
Abstract: ABSTRACT    An air current deflector shield is provided having a one piece construction so as to be mounted directly to the hood of a vehicle.  The shield includes opposite ends which wrap around the fenders of the vehicle   A plurality of apertures are provided in the leading edge of the shield so as to allow air to pass through the shield.  The shield functions to deflect air current upwardly over the windshield of a moving vehicle.  The opposite ends of the shield prevent air from being drawn inwardly behind the shield while the apertures allow air to pass through the shield, thereby minimizing air turbulence behind the shield.
Patent CA-2055027-A1 (CA)
Title: Optical connection to backplanes
Inventor: KNOTT MICHAEL P
IPC: H01R13/46
Filed: 1991-11-06
Abstract: ABSTRACT       Means for effecting a disconnectable optical connection between an optical guide carried by a circuit board and an optical guide carried by or associated with a backplane comprises in combination a two-part plug and socket mechanical connector and a two-part plug and socket optical fibre connector.  One part of the mechanical connector is movable to a limited extent with respect to the backplane or circuit board on which it is carried and the other part of the mechanical connector is fixedly secured to a circuit board or to the backplane.  One part of the optical fibre connector is housed in and fixedly secured with respect to the fixed part of the mechanical connector and the other part of the optical fibre connector is slidably mounted in and with respect to the movable part of the mechanical connector and is urged by a spring towards the mating end of the movable part of the mechanical connector.     The optical connecting means can accommodate any play between a circuit board and the rack in which the circuit board is disposed.
Patent CA-2059834-A1 (CA)
Title: Polymeric retan fatliquor for low fogging upholstery leather
Inventor: HODDER JAMES JOHN
IPC: C14C9/00
Filed: 1992-01-22
Abstract: ABSTRACT OF THE DISCLOSURE   A method for treating leather with a low fogging, substantive, retan fatliquor containing a dispersion of a selected amphiphilic copolymer, substantially free from organic solvents, formed from a predominant amount of at least one hydrophobic monomer and a minor amount of at least one copolymerizable hydrophilic monomer. The method produces leather having desirable strength and softness qualities and particularly reduced fogging characteristics, the leather being particularly suitable for use in vehicle upholstery.
Patent CA-2061497-A1 (CA)
Title: Fluid dispenser tip with recessed dispensing nozzle
Inventor: GIBILISCO KENNETH J
IPC: A61F9/00
Filed: 1992-02-19
Abstract: TITLE OF THE INVENTION FLUID DISPENSER TIP WITH RECESSED DISPENSING NOZZLE            ABSTRACT OF THE DISCLOSURE         A dropper nozzle is combined with a shield member to form a dropper tip which prevents inadvertent contact of the nozzle during manufacture and use, thereby preventing damage to, or contamination of the nozzle and the contents of the dropper bottle to which the nozzle is attached.  The shield is small and is intended to protect the nozzle from coming in contact with the eye, or any part of the face, and not particularly to aid in positioning or directing the drop,
Patent CA-2062073-A1 (CA)
Title: Composition and method for the manufacture of a board
Inventor: SYMONS MICHAEL W
IPC: B27N1/00
Filed: 1992-02-28
Abstract: ABSTRACT          There is provided a method of preparing a natural fibrous material particle composition such as a wood chip composition for use in forming a particle board which includes the steps of impregnating from 50 to 95% by weight of the composition of the particles with a compound selected from coal tar, pitch, asphalt and bitumen dissolved in a solvent therefor such as dichloromethane, applying from 2.5 to 25% by weight of the composition of a novolac resin including a cross-linking agent, in finely divided powder form, to the impregnated particles so that the resin adheres to the impregnated particles, and recovering the solvent. This composition may be used to manufacture a particle board in a platen press by coating the platens of the platen press with a layer of the novolac resin, and then placing the composition between the platens and subjecting the composition to suitable conditions of temperature and pressure to cause the novolac resin to cross link to form the board.
Patent CA-2065839-A1 (CA)
Inventor: PAULSON JAMES C
IPC: C12N15/55
Filed: 1990-10-24
Abstract: A method for genetically engineering cells to produce soluble and secretable Golgi processing enzymes instead of naturally occurring membrane-bound enzymes. Cells are genetically engineered to express glycosyltransferases which lack both a membrane anchor and a retention signal. The resulting altered enzyme becomes soluble and secretable by the cell without losing its catalytic activity. Secretion of the soluble glycosyltransferase by the cell provides for increased production and simplified recovery of glycosyltransferase.
Patent CA-2066226-A1 (CA)
Title: Hair care preparations
Inventor: MUELLER REINHARD
IPC: A61K8/81
Filed: 1990-08-30
Abstract: SUBSTITUTE                      REMPLACEMENT              SECTION is not Present Cette Section est Absente
Patent CA-2067321-A1 (CA)
Title: Perfluoropolyoxyalkylene endowed with a high viscosity and a low peroxide oxygen content, and process for preparing them
Inventor: MARCHIONNI GIUSEPPE
IPC: C07C407/00
Filed: 1992-04-27
Abstract: Peroxy perfluoropalyaxyalkylenes are prepared in relatively high yields by carrying out the photo-oxidation of tetrafluoroethylene with molecular oxygen, by means of ultraviolet radiation , operating in the presence of pentafluorochloroethane as a solvent for tetrafluoroethylene.      Thus, it is possible to obtain peroxy perfluoropolyoxyalkylenes having a viscosity at 20°C ranging from 300,000 to 8,000,000 cSt and endowed with a peroxide content not higher than 4.      Such perfluoropolyoxyalkylenes provide, through chemical reduction, perfluoropolyoxyalkylenes endowed with a functionality higher than 1.9 and at the same time with a high molecular weight:
Patent CA-2071039-A1 (CA)
Title: Soft, high oxygen permeability ophthalmic lens
Inventor: NUNEZ IVAN M
IPC: C08G18/65
Filed: 1992-06-11
Abstract: A low water contact lens material having high 0 2 permeability, a lower water content and reduced polymer matrix size provides adequate O2 to the cornea, but does not wick water away from the eye nor allow protein or other tear components to penetrate and deposit in the lens. Such a lens is made by polymerizing and crosslinking a prepolymer which contains a cyclic polyol with polyalkylether segments containing curable segments.      The cyclic polyols consist of alkoxylated glucose or sucrose which are then reacted with an isocyanate to produce an ultraviolet curable prepolymer. The prepolymer is then placed in a mold and polymerized by exposure to ultraviolet light. The free hydroxyl groups of the material react with a highly hydrophilic reagent to form covalent bonds thus making the surface of the material more wettable.
Patent CA-2071698-A1 (CA)
Title: Catalyst and process for the preparation of vinyl acetate
Inventor: WIRTZ PETER
IPC: B01J23/58
Filed: 1992-06-19
Abstract: - ? -Abstract of the disclosure:            Catalyst and process for the preparation of vinyl acetate:   The invention relates to a process for the preparation of vinyl acetate in the gas phase from ethylene, acetic acid and oxygen or oxygen-containing gases over a catalyst, which comprises palladium and/or compounds thereof and alkali metal compounds on a support, the catalyst moreover comprising at least one barium compound, and gold, cadmium and compounds thereof being absent. Furthermore, the invention relates to the mentioned catalyst.
Patent CA-2072108-A1 (CA)
Title: Process of preparing a water dispersible hydrophobic or aerophilic solid
Inventor: MUSAEUS JENSEN NINA
IPC: A61K9/16
Filed: 1990-11-02
Abstract: Process of preparing a hydrophobic/aerophilic solid which can be dispersed in water in the form of discrete microparticles, wherein the solid is milled in an aqueous medium in the presence of a hydrocolloid to obtain a suspension containing suspended particles of an average particle size not exceeding 10 µm and finely dividing and drying the suspension to obtain a powder.
Patent CA-2072687-A1 (CA)
Title: Elastomer emulsions used as dust control additives in anti-skid compositions
Inventor: CHUNG DANIEL K
IPC: C09K3/22
Filed: 1992-06-29
Abstract: ABSTRACT OF THE DISCLOSURE      An anti-skid composition for use on cellulosic fibrous material which comprises water, colloidal silica and a water-based elastomer emulsion.  The colloidal silica has a mean particle size in the range from about 10 to about 150 nm.  The water-based elastomer emulsion is a film-forming rubber polymer resistant to heat, light and ozone, such as an elastomeric terpolymer.  The colloidal silica is present in the anti-skid composition in the range between about 5 to about 50% by weight, based on the total weight of the anti-skid composition.  The elastomer is present in the anti-skid composition in the range between about 0.1 to about 5%, as active material.
Patent CA-2074526-A1 (CA)
Title: Method and apparatus for processing containers
Inventor: HALASZ ANDREW
IPC: B21D22/10
Filed: 1990-01-26
Abstract: A drawn and ironed container (C) that includes a cylindrical side wall, a smoothly-tapered neck (134) with an open end and an integral bottom wall (137) at the opposite end has a plurality of inwardly-deformed panel segments (130) located in the side wall between adjacent arcuate segments (132) with the panel defin-ing generally chordal bottom walls for the panel seg-ments. The container is formed using a multi-station processing apparatus that consists of a plurality of identical stations (30) located around the periphery of a rotating turret (26). Each station includes a support mandrel (50), a container loading means (52, 53) and an impression mandrel (54), with the impression man-drel being pivoted into and out of pressure engage-ment with the support mandrel to deform the side wall of the container. The support mandrel has a cylindri-cal peripheral surface (102) that conforms to the inner diameter of the container side wall and has circumfer-entially-spaced, axially-extending pockets (104). The pockets have sharp opposite edges (108a) that cooper-ate with the impression mandrel to produce the panel segments in the side wall.
Patent CA-2075144-A1 (CA)
Title: Apparatus and method for determining geometry of an optical system
Inventor: SHTAIERMAN YAACOV
IPC: G06T3/00
Filed: 1992-07-31
Abstract: ABSTRACT           An apparatus for changing the changeover pixels  during an  actual scan of an input medium including means  for  scanning across  a  two-dimensional  surface  during  a  non-actual  scan, wherein  the means for scanning includes at least  two  optically butt image sensors. The apparatus also includes means,  operative during   the  non-actual  scan,  for  determining  the   changing locations of changeover pixels of the image sensors, the changing locations  caused  at  least  by  non-uniformities  in  the  two-dimensional  surface and correction means, operative  during  the actual  scan, for redefining the changeover pixels in  accordance with the output of the means for determining.
Patent CA-2075246-A1 (CA)
Title: Vehicle seat track apparatus
Inventor: WAHLS ROBERT J
IPC: B60N2/18
Filed: 1992-08-04
Abstract: Wahls 1 ABSTRACT OF THE DISCLOSURE         A power seat track apparatus for selectively positioning an automotive vehicle seat is adapted to be powered by an electric motor drive, preferably with separate motors for each drive direction.  The seat back is mounted on the upper track of the seat track mechanism for horizontal drive with the track.  The vertical drive through front and rear torsion tubes or bars act on only the seat pan and seat cushion but not on the seat back. Since the vehicle shock loading requirements must be met by the structural seat pan or seat frame, the pan for holding only the seat cushion may be reduced in size as compared to the usual power seat frame.  The front of the seat cushion is interconnected with the pan through a lost motion pivot and the rear portion of the seat cushion is interconnected with the seat pan through a fixed pivot connection whereby simultaneous elevation and shortening of the seat cushion with respect to the seat back is effected.
Patent CA-2075509-A1 (CA)
Inventor: NAGAOKA TADAYOSHI
IPC: D21C9/06
Filed: 1992-08-07
Abstract: A   screen  suitable  for  use  in  a  device   for separating  solid from liquid is made of a plurality  of screen  wires  each  of which is formed  on  the  facial surface   thereof  with a plurality  of  projections  or depressions.   The  screen may be additionally formed on the   side   surfaces  thereof  with  a   plurality   of projections.   The  screen can effectively trap solid by the  projections or depressions formed on  the  surfaces thereof.