baber/WOPTO huggingface dataset:
Patent CA-2097093-A1 (CA)
Title: Production of high viscosity index lubricants
Inventor: APELIAN MINAS R
IPC: C10G65/12
Filed: 1993-05-27
Abstract: Abstract Petroleum wax feeds are converted to high Viscosity Index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed is initially subjected to hydrocracking under mild conditions with a conversion to non-lube range products of no more than 30 weight percent of the feed.   The hydrocracking is carried out at a hydrogen pressure of at least 7000 kPa (1000 psig) using  an  amorphous  catalyst  which  preferentially  removes  the aromatic components present in the initial feed.  The hydrocracked effluent is then subjected to hydroisomerization in a second step using  a low acidity dicarboxylic acid-treated zeolite Beta or mordenite catalyst which effects a preferential isomerization on the paraffin components to less waxy,  high V.I.  isoparaffins.   The second stage may be operated at high pressure by cascading the first stage  product  into the second  stage  or  at  a  lower pressure, typically from 1480 to 7000 kPa (200 to 1000 psig).  The second stage catalyst is preferably a noble metal containing zeolite Beta catalyst which is treated with oxalic acid to give a low Alpha Value, typically below 10.   The second stage is carried out at relatively low temperature, typically from 316° to 343°C (600° to 650°F) with a 343°C+ (650°F+) conversion in the range of 10 to 20 weight percent of the second stage feed but with high selectivity for isomerization of the paraffins.
Patent CA-2097419-A1 (CA)
Inventor: LE DISERT YVES
IPC: C08G18/50
Filed: 1992-10-21
Abstract: PCT No. PCT/FR92/00988 Sec. 371 Date Jun. 23, 1993 Sec. 102(e) Date Jun. 23, 1993 PCT Filed Oct. 21, 1991 PCT Pub. No. WO93/08157 PCT Pub. Date Apr. 29, 1993.Product obtained from the reaction of (a) an amine-diol resulting from the reaction of a primary amine having the formula R-NH2 in which R represents an aliphatic or aromatic radical, with at least one alkylene oxide comprising predominantly propylene oxide, and (b) at least one polyfunctional substance, capable of acting on the hydroxyl groups of said amine-diol. The product disclosed may be used as an additive in an electrodeposition paint composition in order to furnish, after application to a metal substrate, a coating or film having an improved resistance to pinholes and to cratering.
Patent CA-2097702-A1 (CA)
Title: Dermatomycosis vaccine
Inventor: POLYAKOV IGOR D
IPC: A61P31/04
Filed: 1992-10-17
Abstract: The present invention relates to the preparation of vaccines and their use in preparing compositions for specifically preventing and treating dermatomycoses.
Patent CA-2098170-A1 (CA)
Title: Continuously-variable-ratio transmissions of toroidal-race rolling-traction type
Inventor: FELLOWS THOMAS GEORGE
IPC: F16H15/38
Filed: 1991-12-10
Abstract: A continuously-variable-ratio transmission (CVT)of the toroidal-race rolling-traction type, capable of operating in "low" and "high" regimes with synchronous change between those regimes, and including a variator (3) - that is to say a ratio-varying component - and an associated gearing set (2) of which the components are capable of being set in different combinations for the high and low regimes, in which the output of the gearing is connectable to the output (I) of the CVT as a whole, and the gearing has first (25) and second (29) inputs connected with the variator output (19) and engine output (5) respectively, and in which in low regime the gearing is set to recirculate power and so deliver to its output a power equal to the difference between its two input powers, whereas in high regime it is set so as to split the power flow and to deliver to its output a power representing the sum of the powers at its two inputs.
Patent CA-2100000-A1 (CA)
Inventor: CARROLL WILLIAM E
IPC: C08F26/00
Filed: 1993-07-07
Abstract: ABSTRACT Vinylamide oligomers and lower molecular weight polymers are prepared by the cationic polymerization of vinylamides in the presence of a Lewis acid at a temperature between -100° and 100°C. The resultant vinylamide oligomers and polymers can optionally be hydrolyzed under acidic or basic conditions to form the corresponding vinylamine oligomers and polymers.
Patent CA-2102033-A1 (CA)
Title: Greeting card and blank therefor
Inventor: NISSEN WERNER J
IPC: B42D15/04
Filed: 1993-11-18
Abstract: ABSTRACT   A self-supporting greeting card adapted to carrry a graphic such as a photograph or the like is formed from a blank having at least three panels in seriatim. In the embodiment having three panels, the ~ end panels of the blank are joined to the center panel by fold lines. The center panel or one of the end panels has an opening in it through which the graphic is visible. A pairof laterally spaced, adhesive strips are provided on one of the end panels or the center panel. The adhesive strips act to hold the graphic in position so that itis seen as desired through the opening and for securing one end panel to the center panel when the end panel is folded about the fold line to overlie the center panel with the graphic therebetween to form the greeting card.
Patent CA-2104136-A1 (CA)
Title: Process and apparatus for the wet purification of gases
Inventor: BARTSCH ARNO
IPC: B01D50/00
Filed: 1993-08-16
Abstract: - 13 -ABSTRACT For their wet purification, gases flowing in a line are sprayed with scrubbing liquor, the resulting mixture of gas and liquid is passed through a cyclone separator. The gas is initially sprayed in a pre-scrubbing line and the gas which contains scrubbing liquor is subsequently conducted through a substantially horizontal accelerating line having at its entrance a cross-sectional area which is 1.5 to 5 times larger than the cross-sectional area at its exit. The exit of the accelerating line communicates with the cyclone separator. Purified gas is withdrawn from the cyclone separator.
Patent CA-2105542-A1 (CA)
Title: Image reproducing display apparatus and recording medium therefor
Inventor: MATSUNAMI YOSHIRO
IPC: G11B7/00
Filed: 1993-09-03
Abstract: ABSTRACT OF THE DISCLOSURE      An image reproducing display apparatus which can automatically display a title list image plane or the like even when a title list image plane regarding image data recorded on recording medium is not previously recorded on the recording medium.  The recording starting position of one or a plurality of image data designated from the outside is detected.  The recording position of the image plane data to be reproduced after the lapse of a previously set time period if the reproduction is performed from the detected recording starting position is detected.  The image plane data of one image plane is respectively reproduced as display image plane data from one or a plurality of detected recording positions.  The reproduced display image plane data is stored into a memory.  The corresponding title list image plane is displayed on a display screen of the display device on the basis of one or a plurality of display image plane data stored in the memory.
Patent CA-2106439-A1 (CA)
Title: Burst mode digital data receiver
Inventor: OTA YUSUKE
IPC: H04B10/158
Filed: 1993-09-17
Abstract: Improved Burst Mode Digital Data Receiver Abstract A dc-coupled packet mode digital data receiver, for use with an optical bus uses peak detectors to adaptively establish an instantaneous logic threshold at the beginning of a data burst. A dc compensator, responsive to outputs of the peak detectors, shunts dc or low frequency currents corresponding to "dark level" optical signals, from the input of the receiver. (FIG. 6)
Patent CA-2107525-A1 (CA)
Title: Method and apparatus for acoustic examination using time reversal
Inventor: FINK MATHIAS
IPC: G01S7/52
Filed: 1993-10-01
Abstract: A method for acoustic examination of a medium and detection of reflective targets includes a preliminary step of injecting a divergent sound beam into the medium from at least one transducer. Then the echo signals reflected by the medium and received by several transducers in an array are picked up. A time gate is used to select echoes coming from a particular zone of the medium. The echoes are stored, time-reversed and re-emitted. The signals newly reflected by the medium are stored and the time-reversal operation is repeated. After a final time reversal of rank 2n+1 (where n is a positive non-zero integer) over the full depth of the measurement time gate, the characteristics of the wavefront passing closest to the maxima of said signals are determined, advantageously in the form of a time distribution of the maxima. The characteristics can often be approximated with a polynomial law. An apparatus is disclosed for implementing the method.
Patent CA-2110055-A1 (CA)
Title: T cell receptor peptides as therapeutics for immune-related disease
Inventor: VANDENBARK ARTHUR A
IPC: C07K16/00
Filed: 1992-06-01
Abstract: Peptides and pharmaceutical compositions comprising immunogenic peptides of a marker T cell receptor (TCR) character-istic of an immune-related disease, capable of preventing, suppressing, or treating the disease, are disclosed. In a preferred em-bodiment, the amino acid sequence of the peptide corresponds to at least part of a complementarily determining region (CDR) or a hypervariable region of the TCR. Antibodies and/or T cells immunologically reactive to the TCR peptide capable of preven-ting, suppressing, or treating an immune-related disease by passive transfer are also disclosed.
Patent CA-2112909-A1 (CA)
Title: Dynamic limiting circuit
Inventor: LINK WALTER
IPC: H03G7/00
Filed: 1992-01-24
Abstract: In prior art acoustic reproduction systems to the input of which signals are fed from tape players, record players, radio receivers and the like, listening enjoyment may be adversely affected by fast readjustment of the dynamics. It is proposed in the invention to limit the dynamics of an amplifier connected to a circuit of the invention only after a predetermined time after the level of an input signal has been exceeded. There is a time function element (16) to which is fed a signal which represents a measure of the difference between a predetermined level (VR) and the actual level of an input signal. On the other hand the time unit (16) causes the dynamics to be limited by controlling switching means (17) only after a predetermined time. It is thus possible to maintain linear amplification in cases of only brief excessive rises in the input signal. In the reproduction of audio signals, this has the special advantage that listening enjoyment is not adversely affected by only brief increases or excessive increases in the level.
Patent CA-2113392-A1 (CA)
Inventor: NAGATA KAZUYUKI
IPC: H04L27/233
Filed: 1994-01-13
Abstract: In a circuit arrangement for correcting phase errors of P-channel and Q-channel baseband signals of a QPSK signal, input registers are provided corresponding respectively to possible bit patterns which the unique words of the P-channel and Q-channel baseband signals may assume. Each input register stores 2N bits of incoming unique words of the P- and Q-channel signals. Reference registers corresponding to the possible bit patterns are provided for individually storing 2N bits of a corresponding one of the possible bit patterns. Mismatches between the bits stored in each input register and the corresponding reference register are detected and compared with thresholds to produce a phase error correcting signal. In response, the connecting paths of the P- and Q-channel baseband signals to output terminals are controlled and bit reversals are effected on the P- and Q-channel baseband signals.
Patent CA-2114770-A1 (CA)
Inventor: STEPHENS BARRY D
IPC: E01F15/00
Filed: 1994-02-02
Abstract: A vehicle crash cushion (10) is mounted to a wall (W) adjacent to a roadway (R).  The cushion (10) includes an array of panels (12) positioned to overlap one another and oriented parallel to the wall (W).  A mechanical linkage (16) couples the panels (12) to the wall (W) and suspends the panels (12) above grade such that the panels (12) are movable toward the wall (12). Energy absorbing elastomeric tubes (30) are positioned between the panels (12) and the wall (W) such that movement of the panels (12) toward the wall (W) deforms the energy absorbing elastomeric tubes (30), thereby retarding movement of the panels (12) toward the wall (W) .
Patent CA-2119159-A1 (CA)
Title: Semiconductor laser
Inventor: UCHIDA TORU
IPC: H01S5/22
Filed: 1994-03-16
Abstract: ABSTRACT OF THE DISCLOSURE     A group III-V compound semiconductor laser of a 1 µm band having an excellent conversion efficiency and a high characteristic temperature.  The semiconductor laser can emit light in a 1.3 µm band or a 1.55 µm, and has a laser structure including an active layer for emitting light, guide layers sandwiching the active layer and having a band gap larger than the active layer, and clad layers embracing the guide layers and having a band gap larger than the guide layers.  The lattice constants of the guide layers and clad layers are larger than a1 by 0.5 % or more and smaller than a2 by 0.5 % or more, where a1 represents the lattice constant of GaAs and a2 is the lattice constant of InP.
Patent CA-2121382-A1 (CA)
Inventor: PERRINS NEIL
IPC: C08F283/01
Filed: 1994-04-15
Abstract: Vesiculated polymer beads are prepared in which a water-in-oil-in-water emulsion containing a cross-linkable polymer and a copolymerisable monomer in the oil phase is heated in the presence of an initiator to cure the polymer beads, wherein curing is commenced in a first stage in the presence of a substantially water-insoluble initiator and, when the beads are sufficiently stable, curing is completed in a second stage in the presence of an at least partially water-soluble initiator.  Preferably, the completion of curing is carried out at a temperature higher than that of the first stage.  The beads can be used in low odour paint formulations.
Patent CA-2121516-A1 (CA)
Title: Flush valve filter and bypass orifice
Inventor: WHITESIDE JOHN F
IPC: F16K7/17
Filed: 1994-04-18
Abstract: ABSTRACT OF THE DISCLOSURE           A diaphragm-type of flush valve for use with toilet devices such as urinals and water closets has a body with an inlet and an outlet and a valve seat therebetween.  There is a valve member movable to a closing position on the valve seat to stop flow between the inlet and the outlet.  The valve member includes a diaphragm peripherally attached to the body, a refill ring attached to the diaphragm for controlling water flow to the outlet and a retaining disc which is used to attach the refill ring to the diaphragm.  There is a pressure chamber above the diaphragm for holding the valve member on the valve seat.  A filter and bypass orifice connect the inlet and the pressure chamber, with the bypass orifice being formed in the retaining disc and the filter being formed in part by a portion of the diaphragm.
Patent CA-2123344-A1 (CA)
Inventor: BRULE MARTIN
IPC: A47B23/00
Filed: 1994-05-11
Abstract: L'invention est un appareil orthopédique permettant de lire un livre ou un document de lecture en étant couché dans un lit.     L'invention permet de soutenir un document de  lecture au dessus de la tête du lecteur qui est en position horizontale sur un lit.          Ce petit appareil  s'installe à la tête du lit et  il  est maintenu en place par  le  lit.  Il  est  très  facile d'ins-tallation.     L'avantage et le but de cette appareil est de prévenir et d'éliminer la fatigue musculaire et les douleurs au dos, qui sont le résultat d'une mauvaise posture d'un lecteur couché au lit.
Patent CA-2123456-A1 (CA)
Inventor: BERSON WILLIAM
IPC: B42D15/10
Filed: 1994-05-12
Abstract: This invention relates to a document authentication concept wherein a transparent tape having encoded text thereon is applied to the document.  The encoded text printed on the transparent tape is printed with invisible ink so that the message thereon is not visible to the unaided eye.  Preferably, the ink is visible in the infrared range.  With such a combination, the authentication medium can be applied to a document that has a predetermined format so that the tape can be placed over a portion of the text and the latter will still be readable.
Patent CA-2125990-A1 (CA)
Title: A purifying apparatus
Inventor: THUNSTROEM ALF
IPC: B01D53/88
Filed: 1992-12-18
Abstract: This invention relates to a method of purifying gases which are polluted by hydrocarbons and the like in an apparatus comprising two reactors, each reactor comprising a catalyst bed and a ceramic bed. According to the invention the method is characterized by the combination of the following moments: the gas that shall be purified is forced to stream alternately through a passage comprising the first reactor (1) and the second reactor (2) (clockwise streaming) and the second reactor (2) and the first reactor (1), respectively (counterclockwise streaming), the purification of the gas is made by the fact that the hydrocarbons in the gas are oxidized to carbon dioxide and water in the catalysts (5, 6); the temperature of the gas streaming through the reactors (1, 2) is measured and when the temperature exceeds a certain level, a portion of the gas is taken out from the apparatus during the passage of the catalyst bed (5) of the second reactor (2) if the gas streams in a clockwise direction, whereas a portion of the gas is taken out from the apparatus during the passage of the catalyst bed (4) of the first reactor (1), if the gas streams in a counterclock-wise direction. The invention also relates to an apparatus which is useable for carrying out the method.
Patent CA-2129090-A1 (CA)
Title: Apparatus and method for screening images for reproduction
Inventor: GERSHONY MOSHE
IPC: G06T5/00
Filed: 1994-07-28
Abstract: A method for generating a screened reproduction of an image including the steps of providing a representation of an original having input density values representing the grey levels of various locations of the original for a given color separation, defining a desired irregular screen function for the image and writing screen segments in a line by line fashion, wherein each screen segment is a line whose length and location is determined by employing the input density values of the original and the desired irregular screen function.
Patent CA-2132175-A1 (CA)
Title: Roll with Composite Coats
Inventor: NOMURA HIROTOSHI
IPC: D21F1/40
Filed: 1994-09-15
Abstract: The present invention is directed to a roll used for tensioning a canvas belt used to hold paper against a dryer. The roll includes a main cylindrical body formed of steel. A layer formed of a metal harder than steel is disposed over the outer surface of the main body. The metal layer is formed with a channel around its center so as to define two spaced roll end sections of a common diameter. A fluororesin layer isdisposed in the metal layer channel and is shaped so as to have an outer surface of a diameter equal to that of the metal layer end sections.
Patent CA-2134573-A1 (CA)
Title: Motionless mixer tube for resin dispensing equipment
Inventor: MILLER KENNETH L
IPC: B29B7/74
Filed: 1994-10-28
Abstract: A motionless mixer tube for mounting on the end of a discharge nozzle of a dispensing device for mixing and dispensing extremely small volumes of a pair of liquid materials, such as chemical reacting resins. The mixer tube has an elongated housing with a female luer lock at one end for mounting the tube on the dispensing device, and a male luer lock on the other end for easily mounting a dispensing needle on the outlet end of the housing. A helical motionless mixer element is mounted in a bore of the tube housing and extends from immediately adjacent the outlet end of an inlet socket of the female luer lock to immediately adjacent the outlet end of a discharge nozzle of the male luer lock. The dispensing needle is mounted immediately adjacent the outlet end of the discharge nozzle and mixer element. This arrangement avoids dead spaces within the mixer tube to prevent the formation of disruptive air bubbles therein and enables secure and rapid attachments at both ends of the tube.
Patent CA-2137044-A1 (CA)
Title: Liquid crystal display with patterned retardation films
Inventor: ABILEAH ADIEL
IPC: G02F1/133
Filed: 1994-11-30
Abstract: A multi-colored pixel for a twisted nematic liquid crystal display including red, green, and blue subpixels, wherein each subpixel includes a pair of substrates, a pair of polarizers, opposing electrodes, and a color personalized retardation film which compensates for the different wavelength of each color. The personalized retardation films of the different color subpixels results in elimination of the multi-gap approach and substantially eliminates the problem of different color leakages at different viewing angles, including normal. Also, one polymer based element, preferably a polyimide, functions as both a color filter and a retardation film in certain embodiments of this invention.
Patent CA-2139379-A1 (CA)
Title: Anhydride-functional monomers and polymers and reactive compositions prepared from same
Inventor: HARRIS RODNEY M
IPC: C09D133/14
Filed: 1994-12-30
Abstract: Anhydride-functional polymerizable monomers having the structure:       and polymers and reactive compositions prepared from these monomers are disclosed.  The reactive compositions are especially useful in primer, topcoat and clearcoat/basecoat applications.
Patent CA-2139437-A1 (CA)
Title: Methods for enhancing drug delivery with modified saponins
Inventor: KENSIL CHARLOTTE A
IPC: A61K39/39
Filed: 1993-07-01
Abstract: Methods for enhancing the transport of pharmacologically active substances across mucous membranes of an animal by administration of pharmaceutical compositions comprising modified saponins or fractions thereof obtainable by modification of a crude Quillaja saponaria extract or by modification of purified saponins obtainable from a crude Quillaja saponaria extract. Also disclosed are modified saponins having reduced irritability wherein the fatty acid moiety is removed by hydrolysis or the aldehyde group is reduced. Also disclosed are pharmaceutical compositions comprising the modified saponins of the invention.
Patent CA-2140407-A1 (CA)
Title: Dielectric resonator
Inventor: KORPELA JUHA
IPC: H01P7/04
Filed: 1995-01-17
Abstract: The invention relates to a dielectric resonator comprising a block (2) of dielectric material, having upper (9), lower and side surfaces and in which there is a hole(3a) extending from the upper surface to the lower surface. The hole (3a) and the lower surface as well as at least part of the side surfaces are coated with an electrically conductive material and at least the upper surface (9) is uncoated so that the hole (3a) thus forms a transmission line resonator. The uncoated surfaces are covered with a lid (5) of an electrically conductive material, whereby the dielectric block is substantially surrounded by an electrically conductive material. The resonator hole (3a) is composed of two portions, a straight portion (3a) beginning from the lower surface of the dielectric block as well as a wider portion (10) that is formed above the straight portion and opensinto the upper surface (9) of the dielectric block. Both portions are covered with an electrically conductive material and the coatings of both portions form a juncture. Formed above the resonator hole is a frequency tuning element (11), the first end of which is earthed, the other end being at a distance from the surface of the resonator hole, thus forming a capacitance between the earth plane and the upper end of the transmission line resonator.