baber/WOPTO huggingface dataset:
Patent CA-2024381-A1 (CA)
Inventor: SUZUKI FUMIO
IPC: A61P9/12
Filed: 1990-08-31
Abstract: Novel xanthine compounds represented by the following formula:             wherein each of R1, R and R3 independently represents hydrogen or lower alkyl; each of X1 and X independently represents oxygen or sulfur; and Q represents:                                 , ,                      ,   ,                     or          where   represents a single bond or a double bond;          Y represents a single bond or alkylene, n represents 0 or 1, each of W1 and W independently represents hydrogen, lower alkyl or amino, Z represents -CH2-, -O-, -S- or -NH-;   provided that when Q is           , then R1, R and R3 are not   simultaneously methyl; and pharmaceutically acceptable salts thereof have a diuretic effect, a renal-protecting effect and a bronchodilatory effect.     The compounds are useful as a diuretic, a renal-protecting agent and bronchodilator.
Patent CA-2025081-A1 (CA)
Title: Door
Inventor: RUITER MARC A
IPC: E06B3/48
Filed: 1990-09-11
Abstract: ABSTRACT                         DOOR           A door comprising a  flexible panel  of  flexible profile plate material which is guided around guide means from a closing position to an opened position is especially intended for closing garages.          In order to enlarge the height clearance in the opened position of the door the flexible panel assumes a substantially lying position in the opened state.            (Figure 1 is the abstract figure)
Patent CA-2026060-A1 (CA)
Inventor: DECONTI JOHN P
IPC: F16D65/12
Filed: 1990-09-26
Abstract: In a dynamometer, an internally cooled disc is utilized in a braking system which can apply a large amount of torque for an extended period of time.  A hollowed braking disc comprising individual cooling cells is employed.  Cooling liquid is injected into the center of the braking disc and, by centrifugal force, is forced into the cooling cells via a flow tube ring.  The cooling liquid vaporizes in the cooling cells thus absorbing the heat generated.  The vapor escapes the disc via vent holes.  A unique torque measurement system is also utilized with its braking system.  A result force, formed by the sum of individual forces upon braking pistons within the braking system, is measured utilizing a strain gauged load cell.  The strain gauged load cell is strategically positioned to measure a resultant displacement of the braking caliper due to the applied torque.
Patent CA-2026188-A1 (CA)
Title: Method and apparatus suitable for heating a continuously-operating heated-plate press
Inventor: BEILFELDT FRIEDRICH B
IPC: B27N3/24
Filed: 1990-09-25
Abstract: ABSTRACT     The invention relates to a method and apparatus for heating a continuously-operated heated-plate press.  Such a press has endless steel bands which serve to transmit the pressing force to the material to be pressed and which run upon guide and drive drums about a stationary press bed and a vertically-adjustable press top separated by an adjustable press gap.  The bands run through the press gap supported on roller rods whose axes are orientated transversely to the direction of travel of the steel bands.  The rods run through the press gap along with the steel bands and supported against the press bed and the press top.  The press has heating plates fitted to the upper side of the press bed and to the lower side of the press top.  These plates transmit heat energy to the material via the rolling rods and the steel bands interposed in the press gap between the plates and the material.   In the present invention, flexible heating means are arranged to contact the inner surfaces of the bands in in advance of the press gap in a region where the bands contact the material to be pressed but are not yet engaged by the roller rods so that heat can be transferred efficiently to the material by virtue of the direct contact of the heating means with the bands before the material enters the press gap.
Patent CA-2027412-A1 (CA)
Inventor: KAKUMU KIICHIRO
IPC: B60C11/13
Filed: 1990-10-11
Abstract: A pneumatic tire has a tread patter with blocks which are divided by  two circumferential grooves extending in the circumferential direction of a tire and eighty-five or more lateral grooves crossing the circumferential grooves in a tread part.    In the tread patten, the rate ST/S of the total groove area ST which is the sum of the circumferential groove area SG and the lateral groove area Sg in a ground contact surface when the tire is mounted on a standard rim, inflated with a specific internal pressure and loaded with a specific load to the ground contact area S is 0.15 or more and 0.25 or less, and the rate Sg/SG of the lateral groove area Sg to the circumferential groove area SG is 0.33 or more and 0.53 or less.
Patent CA-2027722-A1 (CA)
Inventor: LANKAR ANDRE
IPC: G05B15/02
Filed: 1990-10-16
Abstract: The present invention relates to a digital servo-control system whose purpose is to control very high precision equipment. The system includes two digital-to-analog converters, one of which is followed by a divider, with the two converters contributing to producing a control signal. A processor responds to a measurement signal and to a reference value to generate the digital values that are delivered to the converters. The system is particularly suitable for application to servo-controlling a voltage-controlled oscillator.
Patent CA-2030219-A1 (CA)
Inventor: HORIKI SEINOSUKE
IPC: C25D5/02
Filed: 1990-11-19
Abstract: A MOLD AND A MANUFACTURING METHOD THEREOF          ABSTRACT OF THE DISCLOSURE      A mold consisting of a board having projecting shape(s) on one side and a reinforcing groove on the other side wherein the depth of said groove is smaller than the thickness of said board, is provided in the present invention.  Said mold may  be  easily punched or trimmed  since  the other side of said mold has no projection and said mold has a gap between the mold and the base of the punching machine or the trimming machine.  Further, when said mold is used as a masking member, said mold may completely protect a part of the surface of an article since said mold is closely attached onto said part.
Patent CA-2031627-A1 (CA)
Title: Method for cultivating mycorrhizal fungi and their fruit bodies
Inventor: OYAMA SHOZO
IPC: A01G1/04
Filed: 1990-12-06
Abstract: ABSTRACT           The object of this invention is to propose a novel method for cultivating a mycorrhizal fungus, one of the classes Eubasidiomycetes and Euascomycetes, under artlficial conditions.     According to a first aspect of the invention we provide a method for cultivating the mycorrhizal fungi comprising: by means of a porous membrane which has fine pores through which a hypha of mycorrhizal fungus can penetrate and pass, but through which an aqueous solution of nutrients does not permeate substantially under cultivating conditions; separating a main zone for cultivating the mycorrhizal fungus substantially from a zone for supplying the aqueous solution of nutrients with the porous membrane; cultivating the mycorrhizal fungus substantially in the main zone; and supplying the aqueous solution of nutrients to the zone for supplying the aqueous solution; and using the porous membrane as an artificial base material with which the mycorrhizal fungus makes mycorrhizas.     The porous membrane is composed of a water-repellent material of which the contact angle with water is more than 90 degrees, and is also composed of a composite consisting of the water-repellent material and a wettable material of which the contact angle with water is not more than 90 degrees.      Preferably the shape of porous membrane is a pipe. We also provide a method for preparing a fruit body of mycorrhizal fungus by means of fruit body developing procedure with the hyphae of mycorrhizal fungus cultivated.    Some fruit bodies of mycorrhizal fungi prepared are edible.
Patent CA-2032447-A1 (CA)
Title: Slag improvement
Inventor: POTTER MICHAEL W
IPC: C10J3/72
Filed: 1990-12-17
Abstract: A B S T R A C T                          SLAG IMPROVEMENT    A process for the the gasification of coal comprising the steps of partially combusting particulate coal in a gasification reactor comprising a gasification zone and a water bath and producing a hot gaseous stream containing synthesis gas and flyash, and slag, in the gasification zone.  The slag produced is allowed to discharge from the gasification zone into the water bath, the redox potential of the water bath being formulated or maintained at a level sufficient to inhibit sulfide presence or inclusion in the slag.
Patent CA-2034444-A1 (CA)
Title: Method and apparatus for the determination of formation fluid flow rates and reservoir deliverability
Inventor: PETERSON GREGG
IPC: E21B47/06
Filed: 1991-01-17
Abstract: A method and apparatus for measuring fluid flow rates, and the absolute open flow (AOF) potential of a subterranean formation penetrated by a wellbore. The present invention can be described as a formation fluid flow rate test tool which is conveyed and operated on a wireline logging cable. The down hole test tool comprises an arrangement of inflatable packers to isolate an interval and a pump which extracts fluid from the formation through an inlet below the upper most packer. The method allows for sequentially increasing or decreasing the pump rate and hence flow rates and measuring the corresponding pressures. From this data, the reservoir flow characteristics, properties and deliverability can be accurately calculated, which was not previously permitted with other known wireline conveyed sampling and testing tools. Additionally, the present invention allows for the reservoir parameters to be obtained under dynamic conditions, emulating an AOF test which was previously only obtained after completion of the well. This method and apparatus presents an economical and time effective technique with which to enter into a decision regarding the disposition of a wellbore.
Patent CA-2035086-A1 (CA)
Title: Skin care compositions
Inventor: CLUM CHARLES E
IPC: A61K8/00
Filed: 1991-01-28
Abstract: ABSTRACT OF THE DISCLOSURE     Skin care compositions comprising a water-in-oil emulsion base containing retinoids and possessing good physical and chemical stability.
Patent CA-2036486-A1 (CA)
Title: 7-oxabicycloheptane imidazole prostaglandin analogs useful in the treatment of thrombotic and vasospastic disease
Inventor: STEIN PHILIP D
IPC: A61K31/557
Filed: 1991-02-15
Abstract: HA495a Abstract PROSTAGLANDIN ANALOGS USEFUL IN THE     TREATMENT OF THROMBOTIC AND     VASOSPASTIC DISEASE   7-Oxabicycloheptane imidazole prostaglandin analogs are provided which are useful in treating thrombotic and vasospastic disease and have the structural formula     , wherein m is 0, 1, 2, 3 or 4; n is 1, 2 or 3: and p is 1, 2 or 3; Z is -CH=CH-, -CH2CH2- or     wherein Y is 0 or a single bond; R is CO2H, CO2lower alkyl, CO2alkali metal, CONHSO2R2 (wherein R2 is lower alkyl or aryl) or -CH2-5-tetrazolyl; A is CHOH, C=O,   (wherein R3 is H or lower alkyl), or a single bond; R1 is lower alkyl, aryl, cyclo-alkyl or H, R1 can be H only when A is a single bond.
Patent CA-2037390-A1 (CA)
Title: Melanogenesis-inhibiting endermic preparation
Inventor: YAMAMOTO SHINJI
IPC: A61K8/00
Filed: 1991-03-01
Abstract: ABSTRACT OF THE DISCLOSURE       Disclosed is a melanogenesis-inhibiting  endermic preparation for external application which contains, as a skin-whitening active ingredient,  a 6-hydroxychroman derivative of a formula:                               where R1  is H,  1-6C lower  alkyl,  1-6C lower  alkoxy, -CO2R',  -(CH2)nOH,  -CH2CO2R'  or  -CONHR';  R'  is  1-6C lower alkyl; n is 1-6; and R2 to R6 each are H or 1-6C lower  alkyl.   The preparation has  an  improved skin-whitening effect and has not harmful side effects.
Patent CA-2039558-A1 (CA)
Title: Extendable elevating leg rest for a wheelchair
Inventor: QUINTILE MARK J
IPC: A61G5/12
Filed: 1991-04-02
Abstract: An extendable elevating leg rest assembly for a wheelchair includes a support tube connected to the wheelchair. A first gear member is fixed to the support tube. an extendable strut, which includes a hollow upper strut member pivotally connected to the first gear member and a Lower strut member slidably received in the upper strut member, pivots about the first gear member between a lowered position and an elevated position. An adjustable foot rest assembly is releasably clamped to the lower strut member. The leg rest assembly also includes a mechanism for extending the foot rest in reaction to the strut being pivoted toward the elevated position. The extending mechanism includes a second gear member, a drive link, and a follower link.      The second gear member is rotatably mounted on the upper strut member and is in meshing engagement with the first gear member so that the second gear member rotates when the strut is pivoted about the first gear member. The drive link has a fixed end fixed to the second gear member and a free end pivotally connected to one end of the follower link. The other end of the follower link is connected to the lower strut member. When the strut is pivoted from the lowered position to the raised position, the second gear member is caused to rotate, which pivots the drive link. Pivoting the drive link causes the follower link to extend the lower strut member out of the upper strut member.
Patent CA-2041060-A1 (CA)
Title: Polyurethane reaction mixtures and coating compositions
Inventor: NOOMEN ARIE
IPC: C08G18/08
Filed: 1991-04-23
Abstract: ABSTRACT OF THE DISCLOSURE            POLYURETHANE REACTION MIXTURES AND COATING COMPOSITIONS      Polyurethanes are produced via the reaction between a polyol and polyisocyanate in the presence of a particular complexed polyisocyanate catalyst, wherein the polyol component has an acid number of about 5 or less.  The polyurethane systems in accordance with the present invention have the advantage that they are readily curable at ambient temperatures and without vaporous amine activators and, under such curing conditions, display an excellent balance between potlife and cure speed.
Patent CA-2043499-A1 (CA)
Title: Method of controlling the flow of outstreaming liquid metal from an inductively heated ladle
Inventor: JOSEFSSON KENNETH
IPC: G01G11/08
Filed: 1991-05-29
Abstract: ABSTRACT            A method and an equipment for accurate weighing in a weighing unit (2) of a metal melt in a ladle (3), in which the melt can be heated respectively stirred by power supplied by means of an induction coil (4), at which the coil is also applied to a weighing unit (1) by which can be measured the reaction force of the magnetic force from the coil influencing the melt. In the weighing system (5) the net weight of melt is calculated by subtracting the signal of the coil weighing unit from that or the ladle weighing unit. The weight change per time unit which represents the mass flow rate of melt from the ladle is calculated in the control system (6) and is used to control the pressure in the ladle in such a way the metal flow is kept constant. (Numbers in the text refer to Fig. 1).
Patent CA-2044072-A1 (CA)
Title: Method of disinfection of soft contact lenses
Inventor: WEBB GARTH T
IPC: A01N41/10
Filed: 1991-06-07
Abstract: METHOD OF DISINFECTION OF SOFT CONTACT LENSES  Abstract of the Disclosure The invention provides a method of disinfecting soft, hydrophilic contact lenses comprising immersing, for a period of time sufficient to result in disinfection, the contact lenses in a solution containing a small but effec-tive amount of chloramine-T in concentration effective for disinfection but non-damaging to the eye and to the contact lenses, wherein the amount of chlorine released by the chloramine-T is from 2 to 250 parts per million.
Patent CA-2044885-A1 (CA)
Title: Alkylbenzotriazole compositions and the use thereof as copper and copper alloy corrosion inhibitors
Inventor: VANDERPOOL DANIEL P
IPC: C23F11/10
Filed: 1991-06-18
Abstract: TITLE OF THE INVENTION          "NOVEL ALKYLBENZOTRIAZOLE COMPOSITIONS AND THE USE THEREOF AS COPPER AND COPPER ALLOY CORROSION INHIBITORS"          ABSTRACT OF THE INVENTION   An alkylbenzotriazole, in combination with mercaptobenzotriazole, tolyltriazole, benzotriazole and/or 1-phenyl-5-mercaptotetrazole, is used to inhibit the corrosion of metallic surfaces, particularly copper surfaces, in contact with an aqueous system.  Systems and compositions are also claimed.
Patent CA-2045253-A1 (CA)
Title: Dicarboximides
Inventor: MAYWALD VOLKER
IPC: C07D513/04
Filed: 1991-06-21
Abstract: formulae Ia, Ib and Ic  Dicarboximides of the (see formula Ia, Ib, Ic) where X is oxygen or sulfur, R1 is hydrogen, halogen, cyano, alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, haloalkoxy, haloalkylthio, alkylsulfonyl, haloalkyl-sulfonyl, phenyl, phenylalkyl, phenoxy or phenylthio, a 5-membered or 6-membered saturated or aromatic heterocyclic radical containing one or two hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen, where the stated organic radicals may be further substituted, and R2 is hydrogen, hydroxyl, alkoxy, alkyl, cycloalkyl, alkenyl, alkynyl, di-C1-C4-alkylamino, a 5-membered or 6-membered heterocyclic saturated or aromatic radical having one or two hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen, phenyl or naphthyl, where the stated organic radicals may be further substituted, and plant-tolerated salts of the dicarboximides I, except for 3-methylisoxazole-4,5-dicarboximide and thiazole-4, 5-dicarboximides in which R2 is phenyl when R1 is methyl or 2-thiazolyl, and herbicides containing these compounds.
Patent CA-2046710-A1 (CA)
IPC: B23Q1/28
Filed: 1991-07-10
Abstract: ABSTRACT OF THE DISCLOSURE A device for clamping coaxial, first and second spindles of a machine tool  to each other.   The first spindle is hollow and rotatably supported by a spindle head.  The second spindle is rotatably supported in the first spindle and can be moved back and forth in the axial  direction  of  the  second  spindle.    The  device includes  a  space  formed between portions  of  both  the spindles; disc springs are provided in the space to exert an axial force; and a pair of clamp rings are disposed on both sides of the springs, for clamping both the spindles to each other due to a wedge action through the force of the disc springs.  An oil chamber is formed at one side of  the pair  of  clamp rings  in  order  to  release  the clamping  of  both  the  spindles  when  oil  pressure  is applied.   A hydraulic pressure source is provided for supplying pressurized oil into the oil chamber through a static pressure pocket provided at the place where the first  spindle  is  in  sliding  contact  with  a  bush encircling the first spindle.
Patent CA-2049373-A1 (CA)
Title: Process for the production of amorphous elastomeric propylene homopolymers
Inventor: PELLON BRIAN J
IPC: C08F4/60
Filed: 1991-08-16
Abstract: ABSTRACT       An process for the production of elastomeric high moleoular  weight   substantially  amorphous   propylene homopolymer having a melting point between about 145°C and 165°C, a melt viscosity at 190°C greater than 200,000 cps and a heat of fusion between about 4 cal./gm. and about 10 cal./gm.is disclosed.  The polymer comprises from about 35% to about 55% of a diethyl ether soluble fraction, the fraction having an inherent viscosity less than about 1.0 dl/g   and   exhibiting   substantially   no   isotactic crystallinity and from about 30% to about 70% of a heptane soluble fraction,  the fraction having a melting point between about 100°C and 115°C and a heat of fusion less than about 2.0 cal./gm.     GW04:40851
Patent CA-2049716-A1 (CA)
Title: Printing plate composite including a quick mounting system for securing such composite to a printing plate cylinder
Inventor: PHILPOT IVAN N
IPC: B41F27/12
Filed: 1991-08-22
Abstract: ABSTRACT OF THE DISCLOSURE           An   improved   compressible-type   printing   plate composite for use in a printing arrangement is provided by this invention.   Such composite includes a substantially T-shaped member having each of a carrier sheet and a printing plate carrier sheet secured thereto.   Disposed intermediate such carrier sheet and such printing plate carrier sheet is a sponge-like  member  which  provides  the  requisite  amount  of compressibility to such composite.  This sponge-like member is secured to one surface of the carrier sheet.
Patent CA-2050410-A1 (CA)
Title: Silicon-based washing compositions and working process
Inventor: BEAUQUEY BERNARD
IPC: A61K8/39
Filed: 1991-08-31
Abstract: Composition for washing and conditioning keratinous matter, in particular hair and the skin, characterised in that it contains in an aqueous medium 
 
  - at least one detergent surface-active agent, 
  - at least one insoluble silicone, 
  - at least one myristate of a C2,C4 polyhydric alcohol, 
  - at least one alkanol (C1-C4)amide alkyl ether and/or an alkanol (C1-C4)amide of C8-C16 fatty acids.
Patent CA-2053802-A1 (CA)
Title: Television receiver with deformable cabinet front window for compensating for assembly variation
Inventor: HIROTA NARUMI
IPC: H04N5/645
Filed: 1991-10-22
Abstract: The invention relates to a structure for positioning a cathode ray tube in a cabinet of a television receiver. The cabinet typically includes a front window opening and window frames which surround that opening. A portion of each window frame is formed so as to be elastically deformable outwardly due to contact between a cathode ray tube and the cabinet when assembling them together. Variation in a dimensional relationship between the cabinet and the cathode ray tube caused when positioning the cathode ray tube within the cabinet is compensated for by the elastic deformation of portions of the window frames. The window frames are an integral part of wall portions of the cabinet. Preferably each of the front window frames is gradually reduced in thickness from its proximal end portion in contact with a wall of the cabinet, towards its free end.
Patent CA-2054137-A1 (CA)
Title: Floor covering having improved cohesion and adhesion in the decorative layer
Inventor: SIDEMAN CARL E
IPC: E04F15/10
Filed: 1991-10-24
Abstract: The incorporation of a carboxyl-modified vinyl chloride/vinyl acetate copolymer in the pigment particle containing decorative layer of a floor covering improves the cohesive strength of the pigmented decorative layer and adhesion of the decorative layer to the adjacent layers.  The use of this modified vinyl copolymer as the binder in the printed or coated decorative layer imparts improved bond strength particularly with platey pigments like pearlescents and metallics or in highly filled dec-orative layers containing titanium dioxide or other pigments.
Patent CA-2055352-A1 (CA)
Title: Primer for the metallisation of substrate surfaces
Inventor: WOLF GERHARD D
IPC: C23C18/28
Filed: 1991-11-13
Abstract: Primers, essentially consisting of a film former or matrix former, an additive, an ionic and/or colloidal nobel metal, a filler and a solvent, are suitable for coating substrate surfaces for subsequent chemical metallisation.
Patent CA-2055845-A1 (CA)
Inventor: NISHIGUCHI MASANORI
IPC: H01L21/60
Filed: 1991-11-19
Abstract: ABSTRACT OF THE DISCLOSURE       A method of mounting a plurality of semiconductor elements each having bump electrodes on a wiring board by pressing the semiconductor elements to the wiring board while aligning the electrodes and heating the structure.  In the mounting method, one or more heat sinks are previously joined to the backs opposite to the surfaces with the bump electrodes formed thereon of the semiconductor elements.
Patent CA-2056471-A1 (CA)
Inventor: ST-LOUIS ERIC R
IPC: E01C23/06
Filed: 1991-11-28
Abstract: An infrared asphalt cold seam heater vehicle is self-propelled and has sidewardly extending infrared heating chambers for heating existing asphalt to soften it for bonding with freshly laid asphalt to minimize premature failure.   The heater has heating chambers attachable to either the right or left side of the vehicle.