baber/WOPTO huggingface dataset:
Patent CA-2012586-A1 (CA)
Title: Method and apparatus for making dry sheet-like sample of solid particles from a suspension, and method and apparatus for measuring pulp concentration
IPC: G01N33/34
Filed: 1990-03-20
Abstract: In a method and apparatus for making a dry sheet-like sample of solid particles from a suspension, a part of the suspension is sampled by a sampling unit as it flows through a pipe or while it is retained in a storage tank, then the sampled suspension is stirred by supplying a com-pressed air and then dewatered by filtration with vacuum, thereby forming a wet sheet-like intermediate sample of solid particles deposited on a filter, subsequently, the filter and the intermediate sample deposited thereon are conveyed by an overturning conveyor unit to a drying station while being turned upside down, thereafter intermediate sample is removed from the filter by a sample removing unit, and finally, the wet sheet-like intermediate sample is dried with heat and pressure whereby a dry sheet-like final sample is obtained.
Patent CA-2012951-A1 (CA)
Inventor: NAKASO NORITAKA
IPC: G01H3/12
Filed: 1990-03-23
Abstract: A plurarily of ultrasound generator assembles having a pair of ultrasound generators including a concave shaped one and a flat shaped one, resultantly realizing an excellent magnitude of accuracy, resolving power and versa-tility and simplisity in handling,  and a plurality of ultrasonic acoustic microscopes having aforementioned ultrasound generator assemblies, resultantly realizing the same results.
Patent CA-2014154-A1 (CA)
Title: Contaminated soil restoration method
Inventor: SKRIBA MICHAEL C
IPC: B09B3/00
Filed: 1990-04-09
Abstract: 54,541 ABSTRACT OF THE DISCLOSURE Waste  material  containing  hazardous or radio-active species is treated by:  separating a portion of the waste material  and identifying the particle size range of the severely contaminated fraction  by  use  of  a sieving apparatus (6) and a contamination detection apparatus (8); passing  the  waste  material  (15)  near  a contamination detection  apparatus  (12)  to identify the waste material that is contaminated  and  segregate  that  material  by a diverter  (17)   to  provide  contaminated  portion  (19); passing the contaminated portion (19) into a fluidized bed apparatus  (16) where  an aqueous leaching solution (21), effective  to   leach   soluble,   contamination  species, contacts the  contaminated material  at an upward velocity effective  to  remove  the  particle  size  range  that is determined to  contain the  severely contaminated fraction of the waste material, to provide  a severely contaminated effluent slurry (24): and removing the leach solution from the slurry in a dewatering  apparatus  (26)  to  provide a solution   (27)   containing  solubilized,  severely  con-tminated species.
Patent CA-2015539-A1 (CA)
Title: Method of reducing tubular products
Inventor: FRANCESCHINA LOUIS E
IPC: B21B17/14
Filed: 1990-04-26
Abstract: ABSTRACT            A method of reducing tubular metal products includes the steps of selecting a tube to be reduced having the specified initial wall thickness necessary to produce the desired finished wall thickness, and reducing the tube by passing it through a succession of roll stands which reduce the end portions of the tube without applying tension between roll stands and which reduce the portion of the tube intermediate the end portions with application of tension.  The method produces reduced tubular products with substantially uniform wall thickness throughout eliminating the necessity of cropping end portions which have out-of-specification wall thickness.
Patent CA-2018155-A1 (CA)
Title: Alumina crystal growth additive
Inventor: ROE WILLIAM J
IPC: C01F7/145
Filed: 1990-06-04
Abstract: ABSTRACT    A method of modifying crystal structure of alumina trihydrate crystallizing from saturated Bayer liquors, which method includes the treatment of the  saturated Bayer  liquors with  a  crystal modifying amount of a polysaccharide, preferably a dextran.
Patent CA-2020229-A1 (CA)
Inventor: DEES JOHN M
IPC: E21B37/06
Filed: 1990-06-28
Abstract: In a well treatment method, a fluid is positioned in a wellbore have formation perforations in alignment with the portion  thereof  to  be  treated.   A  gas  generator  is positioned in proximity with the fluid and is actuated to disperse the fluid within the wellbore in accordance with a pressure/time relationship.  In the preferred embodiment of  the  invention,  the  fluid  is  a  fluid  resin material which  is  polymerized  following  operation  of  the  gas generator to form a consolidated, porous, permeable matrix which  retains  sand  and  other  fine  materials  while permitting the flow of production fluid into the well.
Patent CA-2021564-A1 (CA)
Title: Apparatus for discharging contents of a sealed container
Inventor: GOLIAS TIPTON L
IPC: B01L99/00
Filed: 1990-07-19
Abstract: APPARATUS FOR DISCHARGING CONTENTS       OF A  SEALED CONTAINER              ABSTRACT OF THE DISCLOSURE    A pump for discharging the contents of a sealed container, such as a test tube, is connected to a body member which includes an inlet path and a discharge path with a delivery tube in the discharge path.  A predetermined clearance is provided between the exterior of the delivery tube and the interior of the discharge path, the clearance providing venting, or blow-by, such that temperature changes do not cause accidental discharge of the contents of the container, while still maintaining sufficient resistance to venting for permitting pressurizing the interior of the test tube with the pump for accurately controlling the discharge of the test tube contents.  A second or supplemental vent is provided in the pump.
Patent CA-2024714-A1 (CA)
Title: Process for the preparation of polyurethane rigid foams having a low thermal conductivity and their use
Inventor: VOLKERT OTTO
IPC: C08G18/48
Filed: 1990-09-06
Abstract: A process is disclosed for the preparation of a polyurethane rigid foam having a low thermal conductivity. This process comprises reacting an organic and/or modified organic polyisocyanate with at least one higher molecular weight compound having at least two reactive hydrogen atoms, and optionally lower molecular weight chain extending agents and/or crosslinking agents in the presence of a blowing agent and a catalyst.  The blowing agent consists of cyclopentane or of a mixture comprising cyclopentane and/or cyclohexane and at least one compound homogeneously miscible with cyclopentane and/or cyclohexane, such compound preferably having a boiling point below 35°C and being selected from the group consisting of alkanes, cycloalkanes having a maximum of 4 carbon atoms, dialkylethers, cycloalkylene ethers and fluoroalkanes.  The cyclopentane or above mixture is used in conjunction with water.  The so obtained polyurethane rigid foam can be used in the low temperature appliance industry and as an insulating material in a heating and composite element.
Patent CA-2027174-A1 (CA)
Inventor: KNOTT MICHAEL P
IPC: G02B6/24
Filed: 1990-10-09
Abstract: ABSTRACT      Apparatus for use in terminating an optical fibre F in the bore of a tubular connector body C comprises a movable support 1 having first gripping means 5 for holding a tubular connector body in a fixed position on the support, second gripping means 7 for holding an optical fibre in a predetermined position in which the fibre extends through and protrudes from the bore of the connector body when so held, and a handle of thermally insulating material.  A first mounting 10 for temporarily supporting the movable support 1 is of such a form that it facilitates ready positioning of the connector body C and optical fibre F.  A second mounting 20, to which the movable support 1 is transferred from the first mounting 10, incorporates heating means for hardening of heat-hardenable adhesive employed to secure the optical fibre in the connector body.  Reduction in the level of manual dexterity needed to ensure consistent satisfactory terminations can be achieved.
Patent CA-2027530-A1 (CA)
Title: W-phenoxy-heterocyclic compounds
Inventor: FREEDMAN JULES
IPC: A61P25/18
Filed: 1990-10-12
Abstract: The present invention is directed to a new class of phenoxy-heterocyclic compounds of the formula: (see formula I) and to their use as anti-depressants and as anxiolytics.
Patent CA-2029318-A1 (CA)
Title: Plasma torch with extended life electrodes
Inventor: WOLF CHARLES B
IPC: H05H1/40
Filed: 1990-11-05
Abstract: 55,727 ABSTRACT OF THE DISCLOSURE        A plasma torch electrode has a copper outer shell on an inner portion of which is provided a more durable composition of a silver alloy by pressing or casting to achieve longer lifetime under arcing conditions in air or oxygen while minimizing the cost of materials and fabrication.
Patent CA-2029430-A1 (CA)
Title: Apparatus for molding composite metal-elastomeric wheels
Inventor: JOSEPH JEFFREY S
IPC: B60B3/04
Filed: 1990-11-07
Abstract: ABSTRACT OF THE DISCLOSURE Three-part vertical  stack-up mold apparatus  for molding a composite styled wheel wherein the middle mold part is metal disc and rim subassembly operable as metal street wheel when a pneumatic tire is mounted on said rim.  The lower mold part defines a mold cavity axially adjacent the outboard face of the disc and rim mold part  and  has  a  mold  cavity  surface  to  define  an  ornamental configuration for the outboard face of a plastic body of the composite wheel. An upper mold part seats in the mold-closed condition against the inboard face of the disc urging the same into sealing engagment with the lower mold part.  The lower mold part includes outboard body vent pocket forming cores adapted for individual registry with disc air vent openings so as to protrude therethrough into the mold cavity in the closed condition of the mold.  The upper mold part includes an expansible lid seal juxtaposed in mold cavity sealing relation to the disc inboard face and the cores in the mold-closed condition. The lid seal is radially outwardly expansible in response to clamping pressure of the upper mold part against the middle mold part as resisted by lower mold part during mold closure to thereby radially outwardly enlarge the sealing engagement of the lid seal against the disc inboard surface in the mold-closed condition, and vice versa during mold opening.  The lid seal includes an elastomer annular flexible seal member and a rigid annular ring mounted against and radially inwardly of the annular flexible seal member and which resists radially inwardly deformation of the same under the clamping pressure.  The juxtaposed surfaces of the flexible seal member and rigid ring have a wedge-like engagement to cause the radially outwardly expansible flexure of the flexible seal member upon disc engagement during mold closure.  The lower mold part comprises a lightweight base steel frame-work weldment, and a relatively thin deck part removably secured upon the base and having a generally uniform cross-sectional thickness.
Patent CA-2030751-A1 (CA)
Inventor: MOURI TAKAYUKI
IPC: B60N2/75
Filed: 1990-11-23
Abstract: ABSTRACT OF THE DISCLOSURE     A motor vehicle having a partition wall includes a seat having a seat cushion and a seatback.  The seatback is located immediately adjacent to the partition wall with its back surface facing the partition wall.  The seatback is formed at a laterally middle portion thereof with a through opening.  An armrest is so sized as to fit into the through opening. A bracket is secured to the seatback laterally and extends across the through opening.  The bracket is fastened to the partition wall with bolts and nuts.  A covering plate is detachably disposed in the through opening to conceal the bracket.
Patent CA-2031382-A1 (CA)
Title: Hair treatment composition
Inventor: REID EUAN S
IPC: A61Q5/02
Filed: 1990-12-03
Abstract: A shampoo composition contains surfactant together with a cationic derivative of guar gum and an insoluble non-volatile silicone present as emulsified particles having average particle size below 2  mu m. The silicone is preferably incorporated as a pre-formed emulsion.
Patent CA-2031508-A1 (CA)
Title: Ignition prevention of electronic element through use of thermocontractive insulating tube
IPC: H01H85/02
Filed: 1990-04-23
Abstract: Disclosed is an electronic part having a safeguard function for protecting the associated electronic equipment against abnormally high voltages such as lightning surge voltage.  It is equipped with an element which cuts off any continuous excess current so as to prevent the surge absorbing element and the protected circuit from being spontaneously ignited.  This electronic part having a safeguard function comprises:  a surge absorbing element; a low-melting-point metal element which is electrically connected in series with said surge absorbing element and which is held in contact with said surge absorbing element in such a manner as to allow a satisfactory heat conduction therebetween; and a thermocontractive insulating tube which covers over the periphery of said surge absorbing element and the periphery of said low-melting-point metal element.
Patent CA-2033726-A1 (CA)
Title: Topical compositions
Inventor: KUNDU SUBHAS C
IPC: A61K9/107
Filed: 1991-01-07
Abstract: ABSTRACT OF THE DISCLOSURE     Topical, pharmaceutical compositions comprising 1.alpha.,25-dihydroxycholecalciferol and a pharmaceutically acceptable carrier wherein the pharmaceutical composition is an emulsion buffered at a pH in a range of about 6.5 to about 7.5 are described.  The topical pharmaceutical compositions of the invention have good stability.
Patent CA-2034890-A1 (CA)
Title: Closure device
Inventor: RUDLAND CHRISTOPHER N
IPC: B65D81/38
Filed: 1991-01-24
Abstract: Abstract A CLOSURE DEVICE     A closure device for closing an opened carbonated beverage can has a seal           which seals around the rim of the can     .  The seal is pulled down onto the rim of the can by a part of the device      which engages under the bottom of the can.  The device may comprise a cap      and a base      which together form an enclosure into which the can may be placed, and the walls of the enclosure may be insulated to keep the can and its contents cool.
Patent CA-2036531-A1 (CA)
Inventor: SKERKER ROBERT B
IPC: A47J43/18
Filed: 1991-02-18
Abstract: ABSTRACT OF THE DISCLOSURE A cooking apparatus for suspending a food product while coooking for use in high heat and microwave environments.
Patent CA-2037356-A1 (CA)
Title: Air damper apparatus
Inventor: DATTA DIPTI
IPC: F24F13/14
Filed: 1991-02-28
Abstract: ABSTRACT    Provided  is  a  damper  for  controlling  air  flow through an air duct.   The damper includes a mounting frame secured to the interior of the duct which has a circular opening for air flow therethrough when  the damper is open. A circular damper plate is provided which is dimensioned to block the circular opening in the closed position while in the fully open position the plate is rotated approximately 90 degrees where it is parallel to the flow direction through the duct.   The movement of the damper plate is controlled by an actuator mechanism having a pair of spaced guide plates each of which is provided with two diverging arcuate guide slots.          Corresponding guide slots in the two plates are aligned at the same vertical height.  A movable support bracket is disposed between the two plates and supports two guide pins which extend horizontally through the aligned slots.          The front end of the support bracket is rigidly secured to the damper plate and the back end is secured to a piston shaft coupled to a pneumatic  cylinder.   The movement of the guide pins in the diverging portion of the guide slots causes the damper plate to rotate while the rate of divergence is sufficient such that when the support bracket is urged forward by the cylinder the guide pins each undergo retrograde motion at different relative positions within the slots.   This retrograde motion permits a short piston stroke to be used in addition to increasing the response time of the damper.
Patent CA-2037511-A1 (CA)
Title: System for control of the condition of mixed concrete
Inventor: ASSH DANIEL
IPC: B28C5/42
Filed: 1991-03-04
Abstract: Abstract A mobile cement mixer is provided with a programmed controller that automatically cause the mixing of concrete to follow a predefined mixing regime.
Patent CA-2037591-A1 (CA)
Inventor: IVES FRANK E
IPC: F04B11/00
Filed: 1991-03-05
Abstract: IMPROVED DOUBLE-ACTING POSITIVE DISPLACEMENT PUMP  Abstract A double-acting positive displacement pump has the piston rod and piston sized so as to balance the dynamic forces generated in the pump, resulting in substantially equal output pressure on both the downstroke and upstroke of the pump.
Patent CA-2037840-A1 (CA)
Title: Sliding contact roller head
Inventor: PORTMANN NIKLAUS
IPC: H01R39/00
Filed: 1991-03-08
Abstract: Described is a roller head (10) for a resistance seam welding machine, which has an internally located sliding contact current transmission device (24) between stator (12) and rotor (14), which is composed of a pair of circular ring-shaped discs (26,26') which extend radially between rotor and stator, are fastened to the rotor on their outer circumferences, carry axial sliding contact rings (32,32') on their inner circumferences, and are flexibly designed in their intermediate parts (28,28') between inner and outer circumferences. These sliding contact discs (26,26') are composed of a copper mesh, to which the axial sliding contact rings (32,32') are fastened. Thin-walled metallic diaphragms can also be used instead of the copper mesh. The roller head (10) can transmit high welding currents. As a result of the flexible design of the sliding contact discs (26,26') the contact pressure, which is created by a stack of plate springs (40), remains constant even with external mechanical influences.
Patent CA-2038948-A1 (CA)
Title: Protective outfits and their manufacturing methods
Inventor: SHIONO KATUAKI
IPC: A61F13/06
Filed: 1990-08-09
Abstract: The covering article of the present invention consists of a main body comprising elastic material and nonelastic material or elastic material only and a portion where the elasticity of the elastic material composing the main body is varied by impregnation with a treating agent. The impregnation treatment with the treating agent is carried out by applying or pasting the treating agent in liquid or solid form to the specified portion of the elastic material to be integral with the treating agent.
Patent CA-2039828-A1 (CA)
Title: Partially fluorinated ether solvent for cleaning articles
Inventor: WINTERTON NEIL
IPC: C11D7/28
Filed: 1991-04-04
Abstract: Low molecular weight, fluorine-containing ethers of boiling point 20°C to 120°C are used in solvent cleaning applications.
Patent CA-2045195-A1 (CA)
Inventor: DEBBERT ARTHUR K
IPC: C02F1/52
Filed: 1991-06-21
Abstract: A steam stripping process for softening water comprises contacting said water with steam to bring said water to a temperature of at least substantially 190 °C, to strip CO2 from said water and to cause the precipitation of Ca++ and/or Mg++ from said water. Subsequently sufficient alkaline material is added to bring the pH of said stripped water to at least substantially 10. Thereafter, precipitated Ca++ and/or Mg++ is separated from said water.
Patent CA-2045749-A1 (CA)
Title: Novel tape coating
Inventor: DEMPSTER WILLIAM A III
IPC: B32B27/08
Filed: 1991-06-26
Abstract: A tape wrap system adapted for protecting tubular articles comprising an innerwrap covering the surface of the article to be protected and an outerwrap placed over said innerwrap, said innerwrap comprising an impact-resistance polyolefin layer carrying an adhesive layer on its inner surface and a layer comprising an heat fusible material on its outer surface, or a single layer comprising a blend of an impact resistant moiety and a heat fusible moiety carrying an adhesive layer on its inner surface, said outerwrap comprising an impact-resistant polyolefin layer having an heat fusible layer on both surfaces or the inner surface thereof, or a singular layer comprising a blend of an impact resistant moiety and a heat fusible moiety; said tape wrap system fusing said innerwrap and outerwrap together when heated and thereafter cooled.
Patent CA-2048590-A1 (CA)
Title: Optical fiber or waveguide amplifiers and optically active devices therefor
Inventor: CHIGUSA YOSHIKI
IPC: H01S3/067
Filed: 1991-08-07
Abstract: ABSTRACT OF THE DISCLOSURE    An optically active device comprising an optical fiber, a light source and an optical device is disclosed.  The optical fiber comprises a core made of an optical functioning glass doped with Pr3+ as an active ion and transmits light at a first wavelength.          The light source generates excitation light at a second wavelength shorter than the first wavelength.  The optical device directs the excitation light from the light source into the optical fiber.  Then, Pr3+  in the core of the optical fiber is stimulated to emit light at the second wavelength.  As a result, an optical function such as optical amplification can be effected at the second wavelength.
Patent CA-2050824-A1 (CA)
Title: Process for making 3-oxo-4-aza-androst-1-ene 17-.beta.-ketones
Inventor: WILLIAMS JOHN W
IPC: C07J73/00
Filed: 1991-09-06
Abstract: Case 18219 TITLE OF THE INVENTION   4-AZA-ANDROST-1-ENE 17.beta.-KETONES            ABSTRACT OF TEE INVENTION         Described is a new process for preparing 3-oso-4-aza-androst-1-ene 17.beta.-ketones.  The process involves converting the corresponding 17.beta.-alkyl carboxylate to the N-methoxy-N-methyl carboxamide and reacting this with an appropriate Grignard reagent to form the desired ketone.  The reaction, can be conducted in "one pot", thus eliminating isolation of intermediates and avoiding the use of less stable intermediates, e.g., acid chlorides, acyl imidazolides and the like.
Patent CA-2050962-A1 (CA)
Title: Aryl-fused and hetaryl-fused-2,4 diazepine and 2,4-diazocine antiarrhythmic agents
Inventor: JOHNSON ROBERT E
IPC: C07D401/06
Filed: 1991-09-09
Abstract: D.N. 2510B                 ABSTRACT OF THE DISCLOSURE            Aryl-fused- and hetaryl-fused-2,4-diazepines of formula XXXVI, benzodiazocines of formula XXX, benzodiazepines of formula II                                    XXXVI                       XXX                       II          ?-aminoamides of formula III and aryldimethanamines of formula XXXVII                       III                      XXXVII                            D.N.2510B   wherein A is an aryl or hetaryl ring; R1 is hydrogen, alkyl, aryl or hetaryl; R2 is hydrogen, alkyl, substituted alkyl, or aryl; R3 is alkyl, aryl, aralkyl or heteroatom substituted alkyl or aralkyl; R4 is hydrogen or alkyl; R5 is hydrogen, alkyl, aryl or hetaryl; R6 is hydrogen, alkyl, alkoxy, halogen or a fused benzene ring; R9 is hydrogen, alkyl, or substituted alkyl; and R10 is hydrogen, alkyl, or substituted alkyl. The invention further relates to processes for the preparation of, pharmaceutical compositions containing, and methods of treating cardiac arrhythmia with the compounds of formulas XXXVI, XXX, II, III, and XXXVII.
Patent CA-2051405-A1 (CA)
Title: Insulating product of mineral fibre wool, intended in particular for heat insulation of pipes, and method for preparing this product
Inventor: TALLING BOB L O
IPC: D04H1/645
Filed: 1990-04-05
Abstract: The invention relates to a heat insulation product of mineral fibre wool and to a method of producing this. The curable binding agent of the product is an aqueous suspension containing water glass and slag. The slag reacts hydraulically with the alkalis of the water glass, yielding water resistant bonds. During the preparation of the product, the suspension of water glass and slag is agitated before being applied onto the product. The curing of the binding agent can be carried out at once or later, at the prevailing outer temperature or at a raised temperature.