baber/WOPTO huggingface dataset:
Patent AU-778670-C (AU)
Title: Method for vertical continuous casting of metals using electromagnetic fields and casting installation therefor
Inventor: ETAY JACQUELINE
IPC: B22D11/04
Filed: 2000-11-17
Granted: 2005-11-17
Abstract: The invention concerns a method which consists in: simultaneously subjecting the meniscus of the molten metal present in the ingot mould to the action of an axial alternating electromagnetic field tending to provide it with a general dome-like shape and to the action of a transverse direct electromagnetic field designed to attenuate the surface agitation of the meniscus. The implementing installation comprises an ingot mould (1) with cooled assembled plates (2, 3 and 4, 5) for casting metal slabs, an alternating current coil (17) enclosing the ingot mould at the meniscus (12) of the molten metal to produce an axial magnetic field, collinear with the casting axis (11), and a direct magnetic field winding passing through the large plates of the ingot mould at the meniscus (12) perpendicular to the casting axis.
Patent CA-2000803-C (CA)
Inventor: FURUKAWA HISAO
IPC: C08F8/32
Filed: 1989-10-16
Granted: 1997-04-01
Abstract: A resin composition comprising 5 to 100 % by weight of a vinyl copolymer comprising 0.1 to 99 % by weight of units having the formula (I):                        ( I) The composition of the invention is excellent in weatherability.
Patent CA-2004502-C (CA)
Inventor: AZAMI KATSUMASA
IPC: F16J9/08
Filed: 1989-12-04
Granted: 1998-12-22
Abstract: For carrying out lubrication between a piston (17) and a piston ring (21) installed in an annular groove (23) of the piston, the piston ring comprises a recessed portion (15a, 15b) which is partially recessed from an upper axial end (27) of the piston ring. Lubricating oil is mixed with blow-by gas and flows into the annular groove through the recessed portion. As a result, the lubricating oil is effectively supplied to the annular groove. therefore, the lubrication is favorably carried out between the piston ring and the piston. The piston ring may be formed from a piston ring member (10) of a ring-shaped plate which has the recessed portion on an outer peripheral surface (13) thereof.
Patent CA-2005776-C (CA)
Title: Tiltable chair
Inventor: FRANCK KLAUS
IPC: A47C1/032
Filed: 1989-12-18
Granted: 2000-02-01
Abstract: The invention relates to a chair in which the back rest is supported by at least one rear lever via a swivel joint and the seat is supported by a front connecting element on the pedestal in such a way that when the back rest is tilted forwards or backwards the seat simultaneously carries out an approximately horizontal movement and the rear part of the seat carries out a greater lifting or lowering movement than the front part of the seat, which is aided in a simple manner by the fact that the front connecting element is formed by an element with limited flexibility.
Patent CA-2006797-C (CA)
Title: A process for the preparation of polysocyanates containing uretdione and isocyanurate groups, the polyisocyanates obtained by this process and their use in two component polyurethane coatings
Inventor: DELL WINFRIED
IPC: C07D229/00
Filed: 1989-12-28
Granted: 1999-04-20
Abstract: The present invention is directed to a process for the preparation of modified polyisocyanates containing uretdione and isocyanurate groups by the oligomerization of a portion of the isocyanate groups of organic diisocyanates containing (cyclo)aliphatically-bound isocyanate groups in the presence of organic phosphines of catalysts followed by termination of the oligomerization reaction at the desired degree of oligomerization by the addition of a catalyst poison and removal, by distillation, of at least a portion of the excess, unreacted starting diisocyanate, characterized in that a)   about 0.1 to 10% of the isocyanate groups present in the starting diisocyanate are converted into urethane groups by the addition of at least one alcohol before and/or during the oligomerization reaction, and b)   the distillation residue obtained after removal of the excess starting diisocyanate is heated to temperatures of at least 50°C in the presence of 100 to 10,000 ppm, based on the weight of the distillation residue, of a peroxide.          The present invention is also directed to the polyisocyanates containing uretdione and isocyanurate groups obtained by this process and their use, optionally in blocked form, as the isocyanate component in two-component polyurethane coatings.
Patent CA-2012878-C (CA)
Title: Apparatus for grinding semiconductor wafer
Inventor: NISHIGUCHI MASANORI
IPC: H01L21/304
Filed: 1990-03-22
Granted: 1995-09-12
Abstract: This invention relates to an apparatus for grinding a semiconductor wafer which includes a table having a work stage on which a semiconductor wafer to be ground is placed, at least the work stage being rotated, and a grinding wheel which is moved in a direction perpendicular to or parallel to the work stage while being rotated about an axis parallel to a rotational axis of the work stage.  In this apparatus, a semiconductor wafer is cooled during grinding.  In order to perform cooling, the apparatus has an inlet flow path for guiding cooling liquid to a grinding surface of the semiconductor wafer, and an outlet flow path for collecting the cooling liquid flowed onto the work stage.  The apparatus also includes temperature detector, arranged in the outlet flow path, for detecting a temperature of the recovered cooling liquid.          A rotational speed of the grinding wheel or the rotary table is controlled based on the temperature of the cooling liquid detected by the temperature detector.
Patent CA-2014039-C (CA)
Title: Flexible hot rolled steel sheets having improved deep drawability
Inventor: MORITA MASAHIKO
IPC: C22C38/18
Filed: 1990-04-06
Granted: 1998-06-23
Abstract: A flexible hot rolled steel sheet having an improved deep drawability comprises not more than 0.10 wt% of C, less than 0.20 wt% of Mn, 0.10-2.0 wt% of Cr, 0.002-0.100 wt% of Al, and the balance being Fe and inevitable impurities or further contains particular amounts of at least one of Ti, Nb and Zr and/or B.  Such a hot rolled steel sheet has a tensile strength of not more than 35 kgf/mm2 and a total elongation of not less than 50%.
Patent CA-2021404-C (CA)
Title: Method to prevent depression in a floor and the underfloor thereof
Inventor: SINKI GAMIL
IPC: E01C23/10
Filed: 1990-07-18
Granted: 1994-09-20
Abstract: ABSTRACT OF THE DISCLOSURE            A method to remove a depression in a floor extending on top of a supporting underfloor and to prevent recurrence of this depression thereafter, the method comprising: a) determining the pressure that the floor may withstand in use;  b) preloading the floor by exerting onto the depression in the floor a pressure at least equal to the pressure determined in step (a), using,  for example, dead weights to do so; c) injecting an expandable polymeric foam in an unexpanded state beneath the depression in the preloaded floor between this floor and the supporting underfloor and allowing the foam to expand and level the floor until the depression is removed; and d) releasing the pressure exerted onto the floor after the depression is removed.  The pressure exerted onto the floor in step (b) exerts a compressive strength to both the foam injected beneath the floor and the supporting underfloor.  Such a compressive strength in turn causes the foam to reach a density sufficient to withstand any further pressure that could subsequently be exerted onto the floor, while it also ensures that the underfloor is stable enough not to sink.
Patent CA-2023358-C (CA)
Title: Fishing lure
Inventor: DUTCHER DAVY LOUIS
IPC: A01K85/14
Filed: 1990-08-15
Granted: 1996-08-27
Abstract: The invention features a fishing lure that simulates the natural movements and swimming action of a fish by virtue of articulated fin and body sections that are free to swing back and forth under the action of tidal forces or the play in the fishing line.  The simulated movement attracts other fish and induces them to strike at the bait.
Patent CA-2026036-C (CA)
Title: Sulphated glycosamino glycuronan with antithrombotic activity
Inventor: VAN DEDEM GIJSBERT W K
IPC: A61K35/39
Filed: 1990-09-24
Granted: 2000-08-01
Abstract: The present invention relates to sulphated glycosamino glycuronan with antithrombotic activity consisting essentially of salts of dermatan sulphate, chondroitin sulphate and heparan sulphate, characterized by a) an average molecular weight between 4000 and 8000 daltons; b) a nitrogen content between 2.4 and 3.0%; c) a sulphur content between 7.5 and 9.5%; d) a sodium content between 9 and 11%; e) a dermatan sulphate content between 5 and 25%; f) a chondroitin sulphate content less than 9%; g) an anti-Xa activity between 11 and 20 u/mg; and h) an antithrombin III dependent antithrombin activity of less than 1 u/mg.
Patent CA-2026763-C (CA)
Inventor: GROLLIER JEAN-FRANCOIS
IPC: A61K8/00
Filed: 1990-10-02
Granted: 2002-07-09
Abstract: Cosmetic or pharmaceutical composition consisting of a dispersion in a physiologically acceptable aqueous phase D of vesicles of ionic and/or nonionic amphiphilic lipid(s) bounded by one or more lipid lamellae, the lipid lamellae containing at least one retinoid compound, and the aqueous dispersion phase, a pyrimidine derivative. This composition may be used in topical application on the hair and scalp.
Patent CA-2028335-C (CA)
Inventor: LEINO JORMA
IPC: C23C4/02
Filed: 1990-10-23
Granted: 1998-07-07
Abstract: The invention concerns a roll for use in the production of paper, in particular a renter roll in a press section of a paper making machine, with which the web is in direct contact and from which the web is detached.  In the invention, a composite structure has been formed onto the cylinder mantle of the roll.  According to the invention, the roll face is provided with a surface layer which protects the roll from wear and which provides good properties for detaching of the web, this surface layer being formed by thermal spraying of a powder wherein metal and ceramic phases are in the same powder particle.  The roll face is additionally provided with a dense layer for protection against corrosion, which layer is made of stainless steel whose chromium content is 10 to 29% and which layer is placed between the surface layer and the roll mantle.  The function of the layer for protection from corrosion is to protect the roll mantle from corrosion and to promote the adhesion of the surface coating to the roll.  The invention also concerns a method for the manufacture of the roll.
Patent CA-2033041-C (CA)
Title: Polyoxymethylene composition
Inventor: SUGIYAMA NORIYUKI
IPC: C08L39/00
Filed: 1990-12-21
Granted: 2001-12-04
Abstract: A polyoxymethylene composition contains 0.01 to 5% by weight, based on the polyoxymethylene, of a hindered phenol antioxidant and 0.01 to 5% by weight of an amine polymer having a molecular weight of at least 1000 and comprising structural units of the following formula (1): (see formula I) wherein R represents a hydrogen atom, an alkyl group, a phenyl group, an alkyl-substituted phenyl group or (see formula II) and X represents an alkylene group, a carbonyl group, a carboxyalkylene group, an alkyleneoxycarbonylalkyl group, a phenylene group, an alkyl-substituted phenylene group, an amido group or an alkyleneamido group or X may be null in some cases.
Patent CA-2037640-C (CA)
Title: Centrally controlled automatic device for feeding single sheets or the like within a packaging machine
Inventor: BALLESTRAZZI ARIS
IPC: B65H3/08
Filed: 1991-03-06
Granted: 2001-08-28
Abstract: A centrally controlled automatic device for feeding single sheets or the like in a machine for packaging signatures, newspapers or the like in a continuous film of thermoplastic material, comprising a frame, means for containing sheets stacked one on the other for feeding, means for separating at least one sheet from the bottom of the container means, means for extracting at least one sheet separated by the separation means, and means for evacuating at least one sheet once extracted, wherein the extraction means consist of a lower conveyor band on which a presser roller is caused to engage with rocking movement, the rocking movement being provided by a first cam mechanism which causes the presser roller to move from a first detached position to a second position of engagement with the lower conveyor band as soon as the separation means have gripped an initial portion of the sheet and moved it from the bottom of the container means onto the lower conveyor band, there also being provided a second cam mechanism arranged coaxially to the first cam mechanism to operate the separation means, the cam mechanisms being driven by a single central drive shaft, which rotates the extraction means.
Patent CA-2037967-C (CA)
Title: Self-propelled steerable walk behind mower linkage
Inventor: BRAUN STEPHEN A
IPC: B62D51/00
Filed: 1991-03-11
Granted: 1994-04-26
Abstract: ABSTRACT OF THE DISCLOSURE A mower control linkage having a double ended dead man control lever, left and right steering control levers, and a linkage interconnecting said levers with left and right transmission mechanisms.  The linkage has swingable left and right arm members that adjust the transmission mechanisms between braked, clutch disengaged and driven modes.  The arm members are connected to the dead man control lever via a lost motion coupling and are each linked with respective steering control levers.  As the dead man control lever is depressed, both arm members are placed in a driven mode, and either steering control lever can then be depressed to shift the respective arm member to its braked mode to execute a turn about that wheel.
Patent CA-2055850-C (CA)
Title: Tonometry system for determining blood pressure
Inventor: MARTIN STEPHEN A
IPC: A61B5/0225
Filed: 1991-11-19
Granted: 2001-08-14
Abstract: A tissue contact stress sensing system incorporates a semiconductor assembly and a continuous diaphragm to noninvasively determine the intra-arterial blood pressure of a patient. The system comprises a continuous diaphragm placed against a patient's tissue which covers an underlying artery.      The semiconductor assembly is placed in close proximity to and spaced apart from the diaphragm for directly irradiating the diaphragm with electromagnetic radiation and receiving a portion of the electromagnetic radiation which is reflected from the continuous diaphragm. The disclosed system also utilizes a technique for minimizing the system errors associated with temperature drift and aging of the sensor.
Patent CA-2057680-C (CA)
Title: Felling and delimbing apparatus allowing to delimb trees in length, and its method of use
Inventor: TANGUAY JACQUES
IPC: A01G23/083
Filed: 1991-12-16
Granted: 1995-09-05
Abstract: The invention relates to an improvement in a felling and delimbing apparatus of the type comprising:   a head for felling and delimbing trees and including: a frame, at least two grasping  jaws  pivotally mounted on  said  frame  and movable  toward  or  away  from  each  other,  means  for selectively  moving  and  positioning  said  grasping  jaws toward or away from each other, delimbing knives mounted on said frame and/or on said grasping jaws,  and first and second means for cutting the trunk of a tree, the first means being positioned above the grasping means while the second means are positioned under the grasping means;  a platform which  is pivotally mounted on a  frame of  the vehicule and associated with means for moving it around a substantially vertical pivoting axis; a first and second booms pivotally connected together by a first pivoting means defining a substantially horizontal pivoting axis  ,  the first boom being also pivotally connected with the platform by  a  second  pivoting  means  defining  a  substantially horizontal  pivoting  axis,  the  second  boom  being  also pivotally connected with a first supporting member by a third pivoting means defining a substantially horizontal pivoting  axis,  the  frame  of  the head  and  the  first supporting member being connected together;  and driving means intended to engage the trunk of a tree having a longitudinal axis and drive it according to a driving axis, when said driving axis is substantially coaxial with an axis intended to be substantially coaxial with the longitudinal axis  of  the  trunk  and  substantially  parallel  with  a longitudinal axis of the head and passing between grasping jaws, in order to allow branches of the tree to be pressed against delimbing knives and thus delimb the tree.   Said improvement is characterized by the fact that the frame of the head and the first supporting member are pivotally connected together by a fourth pivoting means defining a pivoting  axis  that  is  substantially  not  parallel  with aforesaid  horizontal  axis,  that  means  are  provided  to selectively move and position the head around the fourth pivoting axis,  that said driving axis  is  substantially horizontal and that said driving means are mounted in such a  way  on  the  platform  that  movements  of  said  booms, supporting member and head around their respective pivoting axis will allow to set the longitudinal axis of a trunk substantially coaxial with the driving axis and engage the driving means  against this  trunk.   The  invention  also relates to a method of use of this improved apparatus.  This apparatus allow to fell and delimb trees in length on the site.
Patent CA-2059118-C (CA)
Title: Honeycombed thermoplastic resin profile - extrusion apparatus for obtaining profile and making process of same
Inventor: PREVOTAT BERNARD
IPC: B29C48/11
Filed: 1992-01-09
Granted: 1998-12-01
Abstract: The invention concerns a section of cellular structure made of thermoplastic resin in which the cells are arranged substantially perpendicular to the axis of the section. The section is made with an extrusion apparatus consisting of an extrusion head and extrusion tooling of which the extrusion head is divided into three channels substantially superimposed opening substantially into the corresponding three channels of the extrusion tooling and at the opposite end being connected with the feed conduit of at least one extrusion device, the two outer channels being used to carry the material constituting the outer walls of the section or tube and the intermediate channel being used to carry the material for fabricating the walls of the cells, the said apparatus being distinguished in that each of the outer channels is separated from the intermediate channel by an annex channel, ending at the outlet in line with those of the other channels and of which the intake, outside the apparatus, is designed to be connected with a means of varying pressure. The section is obtained by creating an alternative pressure variation in the annex channels.
Patent CA-2060756-C (CA)
Inventor: SCHRADER GARY E
IPC: H01R4/18
Filed: 1992-02-06
Granted: 2001-12-11
Abstract: A compressible electrical connector having slots or channels for the inclusion of two or more conductors therein.      One or more surfaces of the connector are provided with an extruded groove having a tying device press-fitted therein.      After the conductors are inserted into the various slots or channels of the connector, the tying device would be tied or twisted around each end of the conductor bundles prior to implementing the crimping process.
Patent CA-2066324-C (CA)
Inventor: HAUSDORF JOERG
IPC: C08J11/00
Filed: 1992-04-16
Granted: 1996-05-21
Abstract: A polyurethane regenerate can be obtained from solvent-containing waste pastes generated in the manufacture of polyurethane by adding an acylpolyethylene glycol ester to the pastes in an amount of 1/10 of the weight of the paste, subsequently adding water with mixing in an amount of about 12 times the weight of the pastes, mixing for one hour at room temperature, expelling the solvent with steam, removing the solvent from the resulting 2-phase distillate and filtering and drying the polyurethane granulate floating in the water of the distillation residue.  The process provides for an environmentally responsible disposal and/or recycling of polyurethane wastes at low energy cost and chemical cost and independent of whether the wastes contain solvents, or are lacquer-like or pasty.
Patent CA-2070595-C (CA)
Inventor: POWERS DONALD H
IPC: B01J29/65
Filed: 1992-06-05
Granted: 2004-11-23
Abstract: This invention provides a process to convert linear alkenes such as butene-1 and butene-2 to methyl branched chain alkenes such as isobutylene using one dimensional, medium pore zeolite catalysts and similar type catalysts such as SAPO's and MeAPOS's. The pore size for the catalyst should be greater than 0.42 nm and less than 0.7 nm, preferably with a larger dimension of between 0.5 and 0.6 nm. This pare size allows the branched chain alkenes to form and diffuse out of the catalyst while reducing the formation of unwanted by-products, including dimers, trimers, aromatics and coke. This invention has been demonstrated with H-ferrierite, SAPO-11, and magnesium mordenite in a laboratory scale reactor. Selectivities ranging from about 50% to almost 100% were demonstrated for isobutylene formation using H-ferrierite, at temperatures ranging from about 340°C to about 440°C.
Patent CA-2071524-C (CA)
Title: Parameter tolerant pll synthesizer
Inventor: HIETALA ALEXANDER W
IPC: H03L7/089
Filed: 1991-12-02
Granted: 1996-10-22
Abstract: In a PLL synthesizer, the tolerance to gain and component variations is greatly reduced when the gain of the loop is increased above that which the loop was initially designed for and if the third order loop symmetric ratio is reduced to a value within the range of 2.0 to 2.5. Higher order loops based on the third order symmetric ratio range have correspondingly lower transmission pole frequency to open loop unity gain frequency ratios.
Patent CA-2074017-C (CA)
Title: Density compensated pipeline monitor
Inventor: WAY DENNIS K
IPC: G01N27/22
Filed: 1992-07-16
Granted: 1997-01-14
Abstract: Apparatus and method for determining the water content of an oil and water mixture such as is transported by pipelines and which oil and water may vary in density from time to time. A densitometer measures the density of the oil and water mixture in the pipeline and a value for the dielectric constant of the oil is obtained from the density measurement by correlating the density reading with a capacitance or dielectric constant reading from an empirically generated chart. A basal sediment and water instrument measures the dielectric constant of the same mixture. The difference between the two dielectric constants is then obtained. This result is converted directly into a water based percentage by volume of the oil-water mixture being carried by the pipeline.
Patent CA-2080842-C (CA)
Title: Method and apparatus for waste vitrification
Inventor: RICHARDS RAY S
IPC: C03B5/187
Filed: 1991-04-17
Granted: 2002-06-25
Abstract: A waste vitrification apparatus (10) having rotatable mixer impeller (16) functioning as a shaft electrode (60) and metallic ves-sel (14) functioning as a vessel electrode (62). A stream (12) of waste material and vitrifiable material are mixed and melted in the vessel (14) for vitrification. The waste vitrification method converts a feed stream (12) by mixing the feed stream into a glass melt (13) and melting glass batch of the feed stream (12) to form a foamy mass. The stream is dispersed by the impeller (16) to form a foam which is then densified in a settling zone (22), recovered through a spout (24) and solidified in storage containers. Means are provided to adjust the location of the mixing impeller (16) in the vessel (14) to change the depth of the settling zone (22). The impeller (16) is mounted on a drive shaft (18) having a recirculating coolant flow.
Patent CA-2083948-C (CA)
Inventor: KISHORE GANESH M
IPC: C12N9/02
Filed: 1991-06-24
Granted: 2001-05-15
Abstract: On décrit des gènes codant la glyphosate oxydoréductase. Les gènes sont utiles pour produire des bactéries et des plantes transformées qui dégradent l'herbicide glyphosate ainsi que des plantes de culture tolérant l'herbicide glyphosate.