baber/WOPTO huggingface dataset:
Patent CA-2035828-C (CA)
Title: Trans-1,4-polybutadiene synthesis
Inventor: CASTNER KENNETH FLOYD
IPC: C08F136/06
Filed: 1991-02-06
Granted: 2001-06-05
Abstract: Trans-1,4-polybutadiene is a thermoplastic resin by virtue of its high level of crystallinity. Because traps-1,4-polybutadiene contains many double bonds in its backbone, it can be blended and cocured with rubbers. Even though traps-1,4-polybutadiene is a thermoplastic resin, it becomes elastomeric when cured alone or when cocured with one or more rubbers. By utilizing the catalyst system and techniques of this invention, traps-1,4-polybutadiene can be synthesized continuously to a high level of conversion with only minimal amounts of gel formation. This invention specifically relates to a process for synthesizing trans-1,4-polybutadiene in a continuous process which comprises continuously charging 1,3-butadiene monomer, an organocobalt compound, an organoaluminum compound, a para-substituted phenol, carbon disulfide, and an organic solvent into a reaction zone; allowing the 1,3-butadiene monomer to polymerize in said reaction zone to form the traps-1,4-polybutadiene; and continuously withdrawing the traps-1,4-polybutadiene from said reaction zone. It is highly preferred for the para-alkyl substituted phenol utilized in this process to contain from about 12 to about 26 carbon atoms.
Patent CA-2039490-C (CA)
Title: Oil based synthetic hydrocarbon drilling fluid
Inventor: PATEL ARVIND D
IPC: C09K8/28
Filed: 1991-03-28
Granted: 2005-10-04
Abstract: The present invention relates to an improved continuous phase for an oil based drilling fluid and specifically a synthetic hydrocarbon continuous phase which is non-polluting and minimally toxic. The invention provides excellent drilling fluid properties under a wide variety of drilling conditions. The synthetic hydrocarbons are selected from the group consisting of branched chain oligomers synthesized from one or more olefins containing a C2 to C14 chain length and wherein the oligomers have an average molecular weight of from 120 to 1000. In the drilling fluid compositions, suitable emulsifiers, wetting agents, viscosifiers, weight materials and fluid loss additives are utilized in conjunction with water and/or a brine phase for the desired rheological properties.
Patent CA-2047411-C (CA)
Title: Variable density structured packing cryogenic distillation system
Inventor: LOCKETT MICHAEL J
IPC: B01J19/32
Filed: 1991-07-19
Granted: 1994-01-11
Abstract: Variable Density Structured Packing Cryogenic Distillation System ABSTRACT          A cryogenic distillation system employing a multisection column wherein structured packing of different packing density is employed in at least two sections of the column.
Patent CA-2047804-C (CA)
Inventor: FISHER ALMON P
IPC: B41J2/16
Filed: 1991-07-24
Granted: 1997-01-14
Abstract: A plurality of thermal ink jet printheads, each with nozzles in a pre-diced nozzle face, obtained from sectioning of an etched channel wafer aligned and mated with a heating element containing wafer that have a patterned thick film layer sandwiched therebetween. The printhead nozzles and pre-diced nozzle face are produced in the channel wafer prior to the alignment and mating of the wafers by the combination of dicing a notch in the channel wafer through one end of a plurality of sets of etched channel grooves, forming the nozzles and the nozzle face in the channel wafer and photodelineating the thick film layer on the heating element wafer, so that when the wafers are mated, the delineated edge of the thick film layer becomes part of the nozzles without requiring the cutting of the thick film layer by a dicing blade. In one embodiment, the heating element wafer has a similar notch diced therein adjacent the delineated edge of the thick film layer prior to mating with the channel wafer. The two notches are confrontingly aligned and the mated wafers are sectioned into separate printheads by dicing through the aligned notches, so that the dicing blade is spaced from the printhead nozzle faces.
Patent CA-2048175-C (CA)
Title: Supporting attachment for a sander
Inventor: OCZYNSKI ZDZISLAW
IPC: B24D15/00
Filed: 1991-07-30
Granted: 1997-11-25
Abstract: This patent application refers to an attachment held directly or remotely for supporting and pressing  a tool to machine body surfaces. This arrangement generates an expanding force along a line extending between the point of support on a base and the point of contact on the working tool. The base and the tool have articulated joints thus allowing for freedom of movement in three planes.   The base and the working tool may be connected by either a flexible or a compressed support member. The working tool can be hand held directly or remotely by means of an extendable support and a tool holder. If a power tool is used as a working tool, its operation can be remotely controlled by an on/offswitch.   The tool with the attachment may be especially useful for machining ceiling surfaces, since the tool is automatically supported and elastically pressed to the surface, by the attachment and furthermore may be remotely controlled by operator from a convenient location.
Patent CA-2051139-C (CA)
Title: Liquid transport drum with removable liner
Inventor: NICHOLS DWIGHT ELLIS
IPC: B65D8/04
Filed: 1991-09-11
Granted: 1995-10-17
Abstract: A container for retaining bulk liguid materials is provided having  an  outer  drum  forming  an enclosed  cavity bounded by  a base  portion,  upright walls  and  a  top wall including at least one port.  A liner is disposed within the cavity of the outer drum and is fixably secured to a first bung removably engaged with the port.  The first bung has a central opening enabling access to the interior of the liner for filling and discharge purposes.  When filled with a bulk liquid material, the liner conforms in shape to the shape of the enclosed cavity of the drum.  The first bung opening is sealed by a second bung member in engagement with the first bung member.  Upon the emptying of the bulk materials from the drum,  the  liner,  being  thin  walled,  substantially  fully collapses.  The first bung member may then be disengaged from the  port  and  the  liner,  in  its  collapsed  state,  removed through the port in the top wall of the drum.  Thus, an easily removable liner is provided which eliminates the necessity of cleaning the drum prior to subsequent use.
Patent CA-2052288-C (CA)
Title: Image synthesizing system and shooting game machine using the same
Inventor: WATANABE NAOKI
IPC: A63F13/837
Filed: 1991-09-26
Granted: 1999-04-20
Abstract: The present invention provides an image synthesizing system for forming a synthesized image by superimposing two images one on another through a half mirror. The image synthesizing system includes a half mirror located in an optical path extending toward a display section; a diorama disposed in one of the transmissive- and reflective-side optical paths and having at least one movable part; and a video display disposed in the other of said transmissive- and reflective-side optical paths such that the video scene of said video display will be superimposed over the image of said diorama through said half mirror. The video scene is superimposed over the image of the diorama to form a synthesized scene such that the video scene is variable in combination with the motion of the movable part in the diorama.
Patent CA-2053600-C (CA)
Title: Transparent communication of control information through a switching network
Inventor: BALES BRUCE M
IPC: H04L29/10
Filed: 1991-10-17
Granted: 1994-09-27
Abstract: TRANSPARENT COMMUNICATION OF CONTROL INFORMATION THROUGH A SWITCHING NETWORK          Abstract An apparatus for establishing a flexible rate interface (FRI) link on a standard ISDN link. The FRI link has its own signaling channel that is distinct from the signaling channel of the standard ISDN link, and the signaling channel of the FRI link is transparent to intervening switching systems. There are no geographical restrictions on a FRI link. The signaling channel of a FRI link may be established by designating a B channel of a standard link, by using a logical link of a D channel of a standard ISDN link, or by using standard ISDN user information transport facilities to communicate the signaling channel. FRI transport channels are B channels of astandard ISDN link or subchannels of a B channel.
Patent CA-2054028-C (CA)
Inventor: SAGANE TOSHIHIRO
IPC: C08L23/08
Filed: 1991-10-23
Granted: 2000-02-15
Abstract: The first and second cycloolefin random copolymer compositions of the present invention contain at least two kinds of cycloolefin random copolymers, particularly the first cycloolefin random copolymer compositions of the invention are characterized by having an intrinsic viscosity of 0.2 to 0.7 and a molecular weight distribution (Mw/Mn) of at least 3, and the second cycloolefin random copolymer compositions of the invention are characterized by having the Cw/Cn ratio of a weight average cycloolefin content (Cw) to a number average cycloolefin content (Cn) of at least 1.04.      The third cycloolefin random copolymer compositions of the invention which contain at least three kinds of cycloolefin random copolymers are characterized in that said composition has a softening temperature (TMA) of at least 70°C, and when cycloolefin random copolymer components constituting the composition are taken as S1, S2 ... Si ... Sn (n is an integer of at least 3), a softening temperature (TMA) of each component (Si) is taken as Ti (°C), and a weight percentage of each component (Si) present in the composition is taken as Wi, (i is an integer of 1 to n), Ti and Wi satisfy the following formulas (3), (9) and (5), Ti < Ti+1  ... (3) wherein i is an integer of 1 to n-1, T1 < 70 (°C)  ... (4), and n   ... (5), a two-component composition containing the component Si and Si+1 in a ratio of Wi : Wi+1 has a haze of not more than 7.0%, and the sum total of the components having a softening temperature (TMA) of less than 70°C is more than 10% of the composition.
Patent CA-2055773-C (CA)
Title: Microbicidal compositions
Inventor: LEADBEATER ANDREW
IPC: A01N43/36
Filed: 1991-11-18
Granted: 2002-08-27
Abstract: The combination of the plant microbicide 4-(2,2-difluoro-1,3-benzodioxol-7-yl)-1H-pyrrole-3-carbonitrile with the plant microbicide 1-(2-[2-chloro-4-(4-chloro-phenoxy)phenyl]-4-methyl-1,3-dioxolan-2-ylmethyl}-1H-1,2,4- triazole results in a synergistically increased effect in the control of plant diseases.  Microbicidal compositions based on such combinations are suitable for treating crops of plants and natural products of vegetable and animal origin, and for seed treatment.
Patent CA-2060776-C (CA)
Inventor: MARTIN JOHANNES JOSEF EDMUND
IPC: F23G5/14
Filed: 1992-02-06
Granted: 1995-10-03
Abstract: The procedure for supplying combustion air during grate firings, in which the primary combustion air is introduced into the fuel, and secondary combustion air is introduced directly into the flow of exhaust gas, and in which, in addition, some of the exhaust gas is tapped off from the flow of exhaust gas and returned to the combustion process, includes the withdrawal of exhaust gas directly above the fuel in the area where there is a large quantity of unused primary air, and the delivery of this exhaust gas that has been tapped off to the combustion air, the quantity of which is reduced according to the quantity of exhaust gas that is mixed with it.
Patent CA-2061186-C (CA)
Title: Improved stake for flatbed trailers
Inventor: PETELKA BRIAN W
IPC: B60J7/10
Filed: 1992-02-13
Granted: 1998-01-20
Abstract: The present invention relates to flatbed trailers for hauling cargo on highways, and more particularly to stakes to be releasably secured in pockets along the edges of a flatbed trailer for converting that trailer from one without side walls to one with side walls.  The stake comprises an elongated main body of uniform transverse cross-section.  The bottom end portion of the main body is formed so as to be releasably received in the pocket.  A pair of oppositely disposed panel-receiving channels extend along opposite sides of the main body for releasably receiving sides of wall panels.
Patent CA-2062157-C (CA)
Inventor: HEIN RICHARD D
IPC: F16F1/02
Filed: 1992-03-02
Granted: 1995-01-03
Abstract: A resilient mount is described as having a special spring  steel  retainer  spring  for  locking  the mount  in  a frusto-conically shaped opening which is defined by a hollow truncated rigid metal sleeve which has an annular abutment at its free outer edge.  The mount has inner and outer rigid metal sleeves to which a resilient rubber insert is bonded. The insert essentially encases the outer sleeve and has a circumferential recess which extends inwardly of the insert adjacent the annular abutment.   The recess  is designed to receive  the  retainer  spring  which  has  a  plurality  of radially extending fingers for engaging the annular abutment to limit axial movement of the mount in one direction.  The insert is also provided with an integral annular flange for engaging the opposite end of the truncated sleeve to limit axial movement of the mount in the other direction.
Patent CA-2065435-C (CA)
Title: Billet pre-piercer apparatus and method
Inventor: STEWART CHARLES L
IPC: H03K5/156
Filed: 1990-09-20
Granted: 1993-10-12
Abstract: ABSTRACT            An apparatus for pre-piercing billets includes a generally cylindrical container for receiving and supporting a generally cylindrical billet, a mandrel bar mounted for axial movement along the axis of the cylinder for penetrating the billet, and a bolster for engaging the billet during penetration of the billet by the mandrel bar, wherein the bolster includes a bolster pin which is axially movable along the axis of the container, the bolster pin having an end which contacts the billet during penetration of the billet by the mandrel bar such that the billet deforms about the end of the bolster pin.  A movable support is carried by the mandrel bar toward the billet during advancement of the mandrel bar prior to  pre-piercing  the  billet,  the  movable  support  being configured to enter the generally cylindrical container to engage a portion of the container so as to provide additional structural rigidity to the mandrel bar to resist deflection of the mandrel bar during penetration of the billet.
Patent CA-2076770-C (CA)
Title: Electrostatic voltermeter (esv) zero offset adjustment
Inventor: PAOLINI ANTHONY L
IPC: G03G15/01
Filed: 1992-08-25
Granted: 1998-11-03
Abstract: In a single pass, tri-level imaging apparatus, erroneous voltage readings of an Electrostatic Voltmeter (ESV) which has become contaminated by charged particles (i.e. toner) are negated by using two ESVs.         During each cycle up following a normal cycle down, a pair of Electrostatic Voltmeters (ESVs) are utilized to measure the voltage level on a portion of relatively uncharged portion of a photoreceptor (P/R). Using one of the ESVs, which is less prone to contamination, as a reference, the zero offset of the other is adjusted to achieve the same residual P/R voltage reading. The difference in the readings which is due to toner contamination is the zero offset between the two ESVs. The offset is used to adjust all subsequent voltage readings of the ESV until a new offset is measured.
Patent CA-2077864-C (CA)
Inventor: ROBERTS PETER M
IPC: B25B23/00
Filed: 1992-09-09
Granted: 1994-07-26
Abstract: ABSTRACT OF THE DISCLOSURE      A tool of the type having a drive stud for receiving and releasing a tool attachment includes an opening in the drive stud and a locking pin movably mounted in the opening.  The opening defines upper and lower ends, and the lower end of the opening is located at a portion of the drive stud constructed for insertion into the tool attachment.  The lower end of the locking member is constructed to engage the tool attachment. when the locking member is positioned in an engaging position and to release the tool attachment when the locking member is moved to a release position.  An actuating member is movably positioned on the drive stud, and a flexible tension member is secured between the actuating member and the locking pin and extends through the upper end of the opening such that movement of the actuating member causes the locking pin to move from the engaging to the release positions.
Patent CA-2078291-C (CA)
Title: Repositional window pricing label
Inventor: LANGAN JOSEPH W
IPC: G09F3/10
Filed: 1992-09-15
Granted: 2004-08-03
Abstract: A window sticker for pricing and fuel economy information about a motor vehicle can be readily positioned and repositioned on a motor vehicle window, and finally removed from the window without leaving an adhesive residue, and in integral form so that it serves as a customer receipt. A continuous web of coated hydrophobic bond paper, or printable plastic, is moved in a first direction to a press where fired indicia, including fuel economy and price related word indicia, is applied to a first face of the web, and patterns of repositional adhesive are applied to the first face adjacent edges of the web elongated in the first direction. The repositional adhesive patterns are covered by release material strips to protect them. Application of the adhesive and protective~strips may be accomplished simultaneously using tip-on or blow-on techniques with double faced adhesive label stock. Variable indicia is printed on the first face using a laser printer, including numerical indicia corresponding to and adjacent the fuel economy and price fixed word indicia. The individual stickers are burst from the continuous web, and if they contain marginal portions with tractor feed openings, the marginal portions are cut off.
Patent CA-2078347-C (CA)
Title: Use of copper(ii) containing compounds to accelerate wound healing
Inventor: PICKART LOREN R
IPC: A61K31/30
Filed: 1991-03-26
Granted: 1996-07-02
Abstract: Compositions of copper(II) containing compounds for use as active therapeutic substances, to accelerate healing of wounds in warm-blooded animals, and in the manufacture of medicaments for accelerating wound healing in warm-blooded ani-mals are disclosed. Methods of the present invention include systemic loading of copper(II) to accelerate the rate of wound heal-ing following injury or surgery. The copper(II) containing compounds include copper(II) complexes with amino acids and pep-tides, and copper(II) salts.
Patent CA-2080933-C (CA)
Title: Analyzer having cover
Inventor: FURUIE DAI
IPC: G01N33/483
Filed: 1992-10-20
Granted: 2001-07-31
Abstract: ABSTRACT OF THE DISCLOSURE     An apparatus for aspirating and analyzing blood, urine or other specimens, in which the operation part and display part are built in the front cover.  The operation and display part (20) furnished with operation keys (24) and display screen (22) is rotatably pivoted, at its one end, on the front cover (12) by the shaft (28).  In this constitution, in an automatic analyzer of blood, urine or the like having the operation part and display part built in the front cover (12), even with the front cover (12) opened, the operation keys (24) may be manipulated and the display screen (22) may be observed easily.
Patent CA-2091155-C (CA)
Inventor: ADAMS LOUIS WILLIAM JR
IPC: G09G5/02
Filed: 1993-03-05
Granted: 2004-01-06
Abstract: An apparatus and method for reproducing the color of blended colorants on an electronic display such as a cathode ray tube, liquid crystal display or other type of electronic device that utilizes RGB values. Predictions of blended colorants on or in substrates can be made from XYZ measurements of samples prepared with no colorants, one colorant, and pairs of colorants. The calculation method uses light absorption, light scattering, and light absorption blend coefficients.      An image digitizer can be used to obtain XYZ values from samples.      Furthermore, image digitizer RGB values are converted into XYZ values with a non-linear model using a simple method. Furthermore, the above process to generate XYZ values from image digitizer RGB values can be used to generate RGB values from XYZ values for electronic display.
Patent CA-2095191-C (CA)
Title: Telephonic switching system with a user controlled data memory access system and method
Inventor: HYMEL DARRYL P
IPC: H04Q3/58
Filed: 1993-04-29
Granted: 2000-01-11
Abstract: A telephonic switching system (11) with a switch (10) controlled by a central processing unit (12) to interconnect interior communication units (14) and exterior telephonic units (16) in accordance with data in a shared data memory (18) with data that is alterable in response to signals generated by the communication units. A data memory access system (23) periodically shifts access to the data memory (18) from one special process to another successive special process in a process memory (20). The data memory access system (23) prevents the normal periodic shifting of access to the data memory (18) during a period when the special process with access is enabled to access and alter shared data.
Patent CA-2105384-C (CA)
Title: Traitement de toxicomanies
Inventor: PERREGAARD JENS KRISTIAN
IPC: A61K31/445
Filed: 1992-02-28
Granted: 2000-09-12
Abstract: On décrit des dérivés de 1-aryl-3-(4-pipéridyl)-indole de formule générale (I) dans laquelle R1 représente hydrogène, halogène, alkyle, alcoxy, hydroxy, cyano, nitro, alkylthio, trifluorométhyle, trifluorométhylthio, alkylsulfonyle, amino, alkylamino ou dialkylamino; R représente éventuellement phényle substitué ou un groupe hétéroaromatique; et R2 représente hydrogène, cycloalkyle, alkyle ou alcényle, éventuellement substitués par un ou deux groupes hydroxy, ou bien R2 représente un groupe de formule (IV) dans laquelle n est un nombre entier compris entre 2 et 6; W est O, S ou N-R3, où R3 représente H, alkyle ou cycloalkyle, U représente N ou CH; Z est -(CH2)m-, m étant 2 ou 3, ou bien Z représente -CH=CH-, 1,2-phénylène, ou -COCH2- ou -CSCH2-; V est O, S, CH2, ou NR4, où R4 est hydrogène, alkyle, alcényle ou cycloalkylméthyle éventuellement substitués par hydroxy. Lesdits dérivés sont utiles pour atténuer, calmer ou supprimer les symptômes de retrait ou d'abstinence, ou pour supprimer la dépendance d'une drogue ou d'une substance toxique.
Patent CA-2114635-C (CA)
Title: Process for preparing adipic acid
Inventor: IDE TOHRU
IPC: C07C51/31
Filed: 1993-04-09
Granted: 2000-05-23
Abstract: In a process for preparing adipic acid from cyclohexene oxide, cyclohexene oxide is hydrated to prepare 1,2-dihydroxycyclohexane and oligomers represented by formula (I): (see formula I) wherein n represents a number of from 1 to 5, and then a mixture comprising the oligomer represented by formula (I) and/or 1,2-dihydroxycyclohexane and/or cyclohexene oxide is oxidized in a nitric acid aqueous solution to prepare the adipic acid with industrial advantages.
Patent CA-2117146-C (CA)
IPC: B01D50/00
Filed: 1994-03-07
Granted: 1999-01-26
Abstract: A  flue  gas  desulfurization  process  wherein  the  liquid bottoms product from the scrubber tower is subject to forced oxidation  in  a  reaction/oxidation  tank.    Afterwards,  this oxidized bottoms product is delivered to hydroclone means for separation into an overflow stream containing an aqueous slurry of mostly fines,  fly ash, and unused reagent and an underflow stream containing predominately a gypsum slurry.   The overflow stream is subsequently returned or recycled back to the scrubber tower while the underflow stream is dewatered for the removal of the gypsum therein.