baber/WOPTO huggingface dataset:
Patent CA-2020039-C (CA)
Title: Toner for developing statically charged images and process for preparation thereof
Inventor: NAKANO TETSUYA
IPC: G03G9/097
Filed: 1990-06-28
Granted: 1995-12-19
Abstract: Disclosed are a toner for developing a statically charged image and a process for the preparation thereof. If a toner for developing a statically charged image, comprising a binder resin and, dispersed therein, a colorant and a charge-controlling dye, is prepared so that it has a particle size distribution satisfying the requirement represented by the following formula:           N < -172.7C + 1.45         (1) wherein N represents the number (%) of particles having a particle size larger than 16 µm, as measured by Coulter Counter, and C represents the surface dye concentration (g/g) of toner particles, a copy having a high image density with a drastically reduced visible fogging can be obtained.
Patent CA-2021586-C (CA)
Title: Method and apparatus for heterogeneous chemiluminescence assay
Inventor: KHALIL OMAR S
IPC: G01N33/576
Filed: 1990-07-19
Granted: 2002-09-03
Abstract: Apparatus and method for performing a chemiluminescence assay involving the immobilization of a chemiluminescent reaction complex to a solid, porous element. The solid, porous element is preferably treated to provide an immobilizing interaction with the chemiluminescent reaction complex wherein the chemiluminescent reaction complex is thereby immobilized to the solid, porous element. The activating and reading of the chemiluminescent reaction are separately performed by evenly distributing a concentrated chemiluminescent activating solution to form a puddle on the surface of the porous element to which the chemiluminescent reaction complex is immobilized.
Patent CA-2022729-C (CA)
Title: Liquid phase fluorination catalysts
Inventor: LAVIRON CHARLES
IPC: C07C17/21
Filed: 1990-08-06
Granted: 1999-02-16
Abstract: The catalysts according to the invention are mixtures of an antimony trihalide and of a titanium tetrahalide. These catalysts can be used for liquid phase fluorination of halogenated aliphatic hydrocarbons, especially that of the chlorinated derivatives of ethane and ethylene.
Patent CA-2024399-C (CA)
Title: Compounds
Inventor: BRANCH CLIVE L
IPC: C07D471/04
Filed: 1990-08-31
Granted: 2002-02-12
Abstract: 7.beta.-[2-(aminothiazolyl and thiadiazolyl)-2-oxyimino-acetamido]cephalosporin derivatives having a 3-[N-(optionally substituted) aminopyridiniumthio-methyl] substituent have antibacterial activity and are of use in antibacterial therapy. Processes for the preparation of such cephalosporins plus intermediates for use in the preparation thereof, including N-(optionally substituted)amino-thiopyridones, are also described.
Patent CA-2028391-C (CA)
Title: Method for introducing a treatment medium into the waste gas flow in combustion processes
Inventor: MARTIN JOHANNES JOSEF EDMUND
IPC: F23J7/00
Filed: 1990-10-24
Granted: 1998-05-12
Abstract: The method for introducing a treatment medium into the waste gas flow in combustion processes provides that a carrier medium be mixed with a treatment medium, wherein these media are brought to a pressure level necessary for the atomization in a one-component nozzle prior to mixing.  The quantitative proportion of treatment medium to carrier medium, which is adjustable as desired, is adjusted as a function of the NOx gas concentration in the treated gas flow or as a function of the waste gas quantity.  The atomization pressure is either predetermined as a fixed value corresponding to the nozzle configuration or adjusted as a function of the waste gas quantity.  The atomization pressure can also possibly be regulated as a function of the evaporator load.  Water serves as carrier medium, while ammonia, sal ammoniac, urea or calcium cyanamide is used as treatment medium.
Patent CA-2031666-C (CA)
Title: Transparent glass-ceramic articles
Inventor: RICOULT DANIEL L G
IPC: C03C10/14
Filed: 1990-12-06
Granted: 2002-02-05
Abstract: This invention is principally directed to the prepara-tion of transparent glass-ceramic articles which, when very rapidly crystallized in situ from precursor glass articles in plate form, exhibit very minimal distortion. The glass-ceramic articles contain .beta.-quartz solid solution as the predominant crystal phase and consist essentially, in weight percent, of SiO2      65-70    MgO+BaO+SrO     1.1-2.3 Al2O3     18-19.8          ZrO2    1.0-2.5 Li2O      2.5-3.8          As2O3     0-1.5 MgO       0.55-1.5         Sb2O3     0-1.5 ZnO       1.2-2.8    As2O3+Sb2O3   0.5-1.5 TiO2      1.8-3.2          Na2O     0-<1.0 BaO         0-1.4          K2O      0-<1.0 SrO         0-1.4      Na2O+K2O     0-<1.0 BaO+SrO   0.4-1.4 2.8Li2O+1.2ZnO/5.2MgO >1.8 The preferred glass-ceramics contain 0.1-1.0% V2O5.
Patent CA-2033314-C (CA)
Title: Shredder/curling device
Inventor: SPARGO ROBERT MICHAEL SR
IPC: D02G1/00
Filed: 1990-12-27
Granted: 1996-04-23
Abstract: A device for curling and shredding ribbon includes a handle having a recess for receiving the end of a thumb of a person grasping the device.  A support member extends from the handle and supports a plurality of flat, planar blade members extending perpendicularly from the surface of the support member.  A diagonal surface forms a sharp edge on one side of the support member, and a second diagonal surface forms a sharp edge on the opposite side of the support member.  A plurality of blades are disposed side-by-side spaced apart and parallel to one another along the length of the support member.  Each blade is oriented to extend in a direction transverse to the longitudinal axis of the sharp edges formed by the diagonal surfaces.  Each blade has a cutting edge formed around the free edges thereof and formed by opposed convex surfaces having the same radius of curvature.  A shield is provided between the handle and the support member carrying the blades.
Patent CA-2038249-C (CA)
Title: Flooring panels for flat platform trailers
Inventor: FOUQUET ROBERT J-M
IPC: B62D25/20
Filed: 1991-03-14
Granted: 2001-02-27
Abstract: A composite panel particularly fox use as a decking material in trailers and trucks is fabricated from at least eleven plies of wood veneer bonded together in a unitary structure. The three outer plies on each side of the panel are oriented with the wood grain extending in the longitudinal direction of the panel, the next outermost layer on each side being oriented with the grain extending in the transverse direction of the panel, and central layers being oriented with the grain extending in a longitudinal direction. Each side of the panel is covered by a laminate overlay of resin impregnated cellulose sheets, the upper surface overlay being textured to provide a slip-resistant finish.
Patent CA-2042917-C (CA)
Title: Broad band switching network
Inventor: KOBAYASHI HIROSHI
IPC: H04L12/911
Filed: 1991-05-21
Granted: 1997-03-11
Abstract: Since a transmission route is set in accordance with the number of relaying broad band switching nodes present between two terminating nodes of a plurality of broad band switching nodes, a through-put characteristic, an affecting degree due to occurrence of a defect, the traffic of the entire network is distributed.  In addition, when the system is started up, transmission routes with a minimum band width necessary for routing control have been set in all the broad band switching nodes.  Whenever a call takes place, a transmission route is set and the band width is variably set by using an intelligent inference mechanism.  Moreover, an intelligent distributed control for distributing such an intelligent inference mechanism in the broad band switching nodes is used.  Thus, the load of processing a call can be decreased, while the reliability of the network and the improvement of the operating efficiency can be achieved.  Furthermore, since the private branch system interface uses a frame which consists of a control window area for controlling its transmission and a cell multiplexing area for multiplexingly transmitting cells, bidirectional transmission between the broad band switching node and a plurality of terminal equipments can be achieved with a single extension transmission line.  In addition, since a frame construction which satisfies the ATM method is used, different information transmission speeds can be flexibly selected.  Thus, high through-put characteristic and statistic multiplexing effect intrinsic to the ATM method can be accomplished even in the extension line interface.
Patent CA-2044068-C (CA)
Title: Telephone system with message recording function
Inventor: NAKANO KAZUO
IPC: H04M1/57
Filed: 1991-06-07
Granted: 1995-02-14
Abstract: A telephone system having a message recording function which records in a voice mail recorder a voice message received from a calling party during absence of a called party and vocally reproduces the recorded message in response to a request from called party.  The tele-phone system, which is preferably connected with such a network that a calling party identification data is included in an incoming signal, comprises a voice conver-sion means for converting a telephone number of the calling party into a voice signal on the basis of the calling party identification data and a control means for vocally reproducing the calling party's telephone number converted into the voice signal together with the voice message from the calling party recorded in the voice mail recorder, whereby, even when the calling party himself does not leave his telephone number in the message, the called party can listen to and know the telephone number as part of the voice message from the calling party.
Patent CA-2045667-C (CA)
Title: Dividing wall, particularly for exposition halls
Inventor: MILITZER GOTTFRIED
IPC: E04B2/74
Filed: 1990-01-22
Granted: 1995-04-11
Abstract: The dividing wall can be assembled from a plurality of inherently rigid wall elements (10) which comprise a frame composed of vertical frame sides (11, 12) and horizontal frame sides and is integrated in the wall filling which comprises a middle plate (22) suitable for anchoring nails or screws and cover plates (20, 21) which can have a thin construction, a stiffening honeycomb filling (23) being provided between the cover plates (20, 21).  The vertical frame sides (11, 12) are provided with a conical external groove (15) or an external spring pin (16) which fits into the latter, so that adjoining wall elements can be put together so as to be self-centering, wherein the reciprocal connection is effected by means of hanging coupling pegs of one wall element in catch openings of the other wall element.  The dividing wall thus comprises lightweight individual wall elements which can be assembled quickly.  (Fig. 3)
Patent CA-2050611-C (CA)
Title: Uniform yarn tensioning
Inventor: COONS ANDREW M III
IPC: D02J1/22
Filed: 1991-09-04
Granted: 1997-07-15
Abstract: Disclosed  is  an  apparatus  for  equilibrating component tensions  in a multicomponent filamentary yarn which is advancing in a primary direction.  The apparatus includes a series of yarn guides arranged so that the multicomponent filamentary yarn deviates both horizontally and vertically from the primary direction.  This deviation advantageously prevents predominance of one component in an air entangled yarn made from two or more different colored or different dye affinity bulked continuous filament feed yarns without unsuitably increasing the overall tension. The  apparatus  exploits  the  surprising  discovery that components themselves, with appropriate manipulations, can be used cooperatively to equalize tensions.  One aspect of this  discovery  guides  the  components  to  run  nearly immediately on top of each other so that they travel in unison.
Patent CA-2051393-C (CA)
Title: A fire-resistant prefabricated steel beam
Inventor: KYCKLING JORMA
IPC: E04B1/94
Filed: 1990-04-04
Granted: 1995-09-05
Abstract: The invention relates to a fire-resistant prefabricated steel beam arranged to act together with concrete as a load-bearing jointing construction for various slabs.  The beam comprises two web portions and horizontally projecting flange portions extending beyond the web portions.  To achieve a simple beam easy to install at least each web portion with its horizontally projecting flange portion is formed by an integral material strip so that the web portion and the projecting flange portion adjoining it form a jointless entity and so that the web portion is in a slanting position with respect to the flange portion.  The web portions are arranged side by side so as to slant towards each other and interconnected at edges closer to each other by means of a horizontal upper part.  The edges of the web portions farther apart from each other are interconnected by means of a plate welded to the web portions.  Openings are formed close to the upper edges of the web portions and/or in the horizontal upper part to fill the space defined between the upper part of the web portions and the plate with concrete in a manner known per se.
Patent CA-2057625-C (CA)
Title: Fault-tolerant inertial navigation system
Inventor: HUDDLE JAMES R
IPC: G01C21/16
Filed: 1991-12-13
Granted: 2001-03-06
Abstract: Disclosed herein is a Fault-Tolerant Inertial Navigation System comprising, in a preferred embodiment, a Redundant Set of at least two Inertial Navigation Systems, from which one may identify and isolate at least one instrument within an Inertial Navigation Unit which shows substantial performance degradation. The two inertial navigation units are fully capable of performing navigational functions. Each of these inertial navigation units has a plurality of navigational instruments, including at least three linear sensors (such as accelerometers) and three angular change sensors (such as gyroscopes or ring laser gyroscopes). No two linear sensors nor any two angular change sensors of either unit are aligned colinearly. Each of the inertial navigation units produces a set of independent navigational solutions at each of their respective outputs. The independent navigational solutions of each of the navigation units are compared and any significantly degraded performance of any one linear sensor or any one angular change sensor is detected.
Patent CA-2057641-C (CA)
Inventor: PROSISE ROBERT LAWRENCE
IPC: B65D81/34
Filed: 1991-12-13
Granted: 1996-06-25
Abstract: A microwave susceptor which includes a dielectric substrate and a dry layer of microwave active coating material overlaying at least a  portion  of  the  substrate  is  provided.   The  coating  material includes a silicate binder and an active constituent and the weight ratio of the silicate to active is about 98:2 or less  (i.e.  less silicate).   The  dry  layer  is  electrically  continuous  and  has  a surface concentration  of  active constituent  of  about  1  gram  per square meter or greater.  Sodium silicate is preferred as the binder and graphite is preferred as the active constituent.   In addition additives  such  as  saccharides,  glycerine  and plasticizers  can  be added to inhibit thermal shut down and to increase the flexibility of the dry layer.  The susceptor can exhibit moderate heat performance or even high heating performance if desired.  A susceptor baking cup, a baking system including a dome shaped cover which can be used to form an enclosure, and a container for frying are all possible uses for this microwave active coating material.
Patent CA-2058485-C (CA)
Title: Silver-containing ethylene oxide catalyst carrier
Inventor: GERDES WILLIAM H
IPC: B01J21/06
Filed: 1991-12-24
Granted: 1997-04-29
Abstract: The invention relates to catalyst carriers for use in conjunction with silver, alkali metal promoters, rhenium promoters and optionally rhenium co-promoters selected from sulfur, molybdenum, tungsten, chromium and mixtures thereof. The carriers consist    of at least 85 and preferably 95 percent by weight of alpha alumina, from about 0.01 to about 6 percent by weight of an alkaline earth metal silicate and from about zero to about 10 percent by weight (measured as the dioxide) of added zirconium in the form of an oxide.
Patent CA-2060457-C (CA)
Inventor: LAUWERS EDDY J
IPC: A62D3/34
Filed: 1992-01-31
Granted: 1996-02-06
Abstract: The invention relates to a process for obtaining a substantially homogeneous temperature profile along the length of an incinerator during the incineration of halogenated waste containing materials comprising:  (a)  providing a mixture containing an aqueous solution and halogenated waste having a preselected heating value;              (b)  introducing said mixture into the incinerator in the presence of oxidant to engender a flame; and (c)  spraying an aqueous solution into or around the flame.
Patent CA-2066762-C (CA)
Title: Capacitance humidity sensor
Inventor: THOMA PAUL E
IPC: G01N27/22
Filed: 1990-09-27
Granted: 1999-05-11
Abstract: A capacitance humidity sensor according to the invention has a dielectric film c ore (11) which is in contact with a pair of polymeric conductive layers (12. 13) bonded to opposite faces to the core (11). The dielectric core (11) is made of a polymeric material having a dielectric constant which varies substantially linearly with h umidity, such as polyimide or polyparabanic acid. The conductive layers (12, 13) are made of a polymeric material having conductive pa rticles, such as carbon particles, dispersed therein. Such conductive layers (12, 13) provide superior performance and corros ion resistance in comparison to the metal films commonly employed in the prior art.
Patent CA-2078700-C (CA)
Title: Imidazolylmethyl-pyridines
Inventor: GIGER RUDOLF KARL ANDREAS
IPC: A61K31/4155
Filed: 1992-09-21
Granted: 2005-09-13
Abstract: Compounds of formula I, (see formula I) wherein R1 to R4 possess the significances given in the description, may be used in the treatment of senile dementia, Alzheimer's disease and depression.
Patent CA-2082158-C (CA)
Title: Fast dissolving sweetening agent including caramel
Inventor: TSAU JOSEF HENG KO
IPC: A23L27/30
Filed: 1991-03-06
Granted: 1998-06-30
Abstract: This invention relates to a consumable product in granular or powder form comprising a mixture of a sweetening agent selected from the group consisting of aspartame, saccharin, cyclamates, trichlorogalactose, alitame, all salts and mixtures thereof and a dehydrated caramel, the consumable product having a dissolution rate faster than the sweetening agent alone, wherein the sweetening agent comprises at least 70% by dry weight of the product and the caramel comprises from 0.5 to 30% by dry weight of the product. The product contains a limited amount of caramel and is surprisingly fast dissolving.
Patent CA-2082268-C (CA)
Title: Hydrocyclone assembly
Inventor: ANDERSSON ROINE
IPC: B04C5/24
Filed: 1991-04-29
Granted: 2000-11-14
Abstract: A hydrocyclone assembly comprises at least one hydrocyclone (1) having at least two through flow members (2, 3) for distribution of liquid between the outside and the interior of the hydrocyclone, and circular cylindrical pipes (4, 5) of the same number as that of the through flow members of the hydrocyclone, the through flow members of the hydrocyclone being connected to the pipes, respectively. According to the invention each through flow member (2, 3) defines an annular end portion (6), which extends around a radial bore (7) in its associated pipe (4, 5) and abuts sealingly against the mantle surface of the pipe via a gasket (8) extending around said bore in the pipe.
Patent CA-2088732-C (CA)
Title: Antimicrobial agent for staphylococcus
Inventor: FUJIWARA HIROSHI
IPC: A61P31/04
Filed: 1993-02-03
Granted: 1999-04-13
Abstract: An   antimicrobial   agent   for   Staphylococcus comprising an extract of the pileus of Ganoderma lucidum, thereby  treating  and  preventing  various  infections  and inflammations    caused    by    Staphylococcus    including Methicillin Resistant Staphylococcus aureus.
Patent CA-2090349-C (CA)
Title: Composition and method for stripping tin or tin-lead alloy from copper surfaces
Inventor: CORDANI JOHN L
IPC: C23F1/44
Filed: 1993-02-25
Granted: 1999-08-17
Abstract: Tin or tin-lead, and any underlying copper-tin intermetallic, are stripped from a copper surface utilizing an aqueous solution consisting of nitric acid, ferric nitrate, and a solution-soluble source of halide ion, such as hydrochloric acid.
Patent CA-2093798-C (CA)
Inventor: PIWINSKI JOHN J
IPC: C07D413/14
Filed: 1991-10-08
Granted: 2000-02-01
Abstract: Pyridine et dérivés de N-oxyde de pyridine de pipéridines ou de pipérazines de méthyle diaryle correspondant à la formule structurelle (1.0), et sels pharmaceutiquement acceptables de ces composés. Ces substances présentent une activité anti-allergique et anti-inflammatoire. L'invention concerne en outre des compositions pharmaceutiques renfermant ces composés et des procédés d'utilisation de ces dernières.
Patent CA-2094294-C (CA)
Title: Radiographic system with improved image quality
Inventor: RUSSELL RAYMOND J
IPC: C09K11/77
Filed: 1992-11-25
Granted: 2001-05-08
Abstract: A wide latitude, high resolution radiographic system having a relative speed of at least 150 and a contrast transfer function of at least 0.30 when measured at 6 line pairs per millimeter, comprises at least one X-ray intensifying screen in operative association with a photosensitive silver halide element having a maximum contrast of less than or equal to 3.0 produces superior images, particularly chest images over a wide range of exposures, without the decrease in image quality or contrast normally seen in wide latitude systems.
Patent CA-2099012-C (CA)
Inventor: CHAN ALBERT F
IPC: E21B37/00
Filed: 1992-01-23
Granted: 1999-08-03
Abstract: On procède au nettoyage de puits de pétrole et de gaz ainsi que de puits d'injection en éliminant les boues de forage à base de pétrole, les graisses pour filetages de canalisations, les autres contaminants du pétrole, le ciment et les contaminants se trouvant dans l'eau d'injection au moyen d'une composition comprenant de l'eau douce ou de l'eau salée, une concentration de 0,5 à 10 % d'un tensio-actif de polyglycosides d'alkyles et 1 à 10 % d'un agent caustique tel que l'hydroxyde de sodium, l'hydroxyde de potassium ou l'hydroxyde d'ammonium.
Patent CA-2103392-C (CA)
Title: Method for channel adaptive detecting/equalizing
Inventor: KAZECKI HENRY L
IPC: H04B7/005
Filed: 1993-11-18
Granted: 1998-08-11
Abstract: In a communications device, two coherent detection algorithms (102 and 103), one of which has a decision feedback equalizer (103), and a detector selection algorithm (104) are used to dynamically select a detector depending on whether delay spread distortion is present. First the correlation of the detector without the equalizer (102) is measured. If this correlation is greater than a predetermined threshold, the data from that detector (102) is used by the communications device. If the correlation is less than the threshold, the correlation of the detector with the equalizer (103) is measured. If this is less than the correlation of the detector without the equalizer (102), the data from the detector without the equalizer (102) is used, otherwise the data is taken from the equalizer (103). In any case, if the detector without the equalizer is used, the detector with the equalizer is turned off.