baber/WOPTO huggingface dataset:
Patent CA-2022971-A1 (CA)
Title: Power saving drive circuit for tfel devices
Inventor: ASARS JURIS A
IPC: H05B44/00
Filed: 1990-08-09
Abstract: 55,423 ABSTRACT OF THE DISCLOSURE         A power saving voltage drive circuit for a TFEL edge emitter device of the type having a plurality of pixels, with each pixel having a first terminal and all pixels on a device sharing a common second terminal, is comprised of a demultiplexing channel driver being selectively connected to the second terminal.  A bidirectional switch selectively connects one of the first terminals to a source of voltage thereby enabling current to flow into and out of the pixel.  A transformer has a primary winding connected between the first terminal and the bidirectional switch for enabling the pixel to charge to an operating voltage, and a secondary winding connected in series with a diode across the source voltage and ground for limiting the value of that operating voltage.  The bidirectional switch is operated so that a substantial portion of the energy used to charge the pixel is returned to the source of voltage at the end of the pulse duration.
Patent CA-2023701-A1 (CA)
Inventor: NEVILLE HARVEY E
IPC: G05D3/18
Filed: 1990-08-21
Abstract: APPARATUS AND METHOD FOR  GUIDING A MOVING STRIP               ABSTRACT OF INVENTION       Apparatus and method for guiding a strip traveling along a selected path, which apparatus and method comprises a primary strip position correcting mechanism, such as a payout reel or sterring roll that engages a strip at a first location for changing the position of the strip as the strip moves along from the first position  to a remote control point. The strip correcting mechanism includes a primary control loop with an actuator for changing the strip position and a feedback control loop that compares the actual rip position with an adjustable reference value to control the position of the moving strip. An edge sensor at the remote control point on the strip path creates an output error signal generally proportional to the deviation of the strip edge at the remote control point from a preselected edge position. This error signal is used for periodically changing the reference value of the position correcting mechanism in the primary loop in accordance with the output error. The apparatus or method employs the concept of creating a series of counting bursts each having a count pulse, the number of which is determined by a given frequency component and a selected duration component. At least one of these components defining the count pulses of each counting bursts is varied in accordance with the magnitude of the output error signal so the reference value of the primary loop is changed by the output error signal.
Patent CA-2024423-A1 (CA)
Inventor: PACCHIOSI DORIANO
IPC: E21D9/00
Filed: 1990-08-31
Abstract: The invention falls within the art field of shields used in the excavation of tunnels for any given utility (rail, road, underground railway, sewers, pipelines, power cables etc.), and of all sizes.          The plant disclosed provides a temporary support structure for tunnel walls, entirely self-propelled and extendible along the direction of excavation, the interior of which accommodates equipment used in digging operations and for the removal of spoil; accordingly, the structure acts as a temporary shoring facility during excavation works, moving forward through the bore and carrying within it the complete battery of excavation and auxiliary equipment while enabling installation immediately behind of the permanent pre-cast or cast in-situ tunnel lining.
Patent CA-2025609-A1 (CA)
IPC: H01R24/44
Filed: 1990-09-18
Abstract: SELF-ALIGNING RF PUSH-ON CONNECTOR                      ABSTRACT OF THE DISCLOSURE       A self-aligning push-on coaxial RF connector assem-bly is disclosed.   The male  structure of the assembly includes  a  cross-slotted  center  conductor  with  a  di-electric sleeve.   The female structure of the assembly includes a feed-through device having a center conductor pin,  a  primary  counterbored  hole  to  the  base  of  the feed-through,  and a larger secondary pilot counterbored hole with a lead-in angle of about 15 degrees to the primary hole.  The larger pilot hole allows for a substan-tial radial misalignment of the male and female struc-tures.   The  center  conductor  pin  is  captured  by  the cross-slotted  center  conductor  upon  engagement.   The dimensions of  the  assembly  components  are  selected  to provide a constant characteristic impedance throughout the connector assembly.
Patent CA-2026502-A1 (CA)
Title: Vehicle bumper assembly
Inventor: CHEN MING-TANG
IPC: B60R19/18
Filed: 1990-09-28
Abstract: ABSTRACT      A bumper assembly (1) for a vehicle comprises an impact member, preferably in the form of an elongate section (2) extending transversely of the fore and aft axis of an asso-ciated vehicle, and a plurality of buffer means, preferably in the form of resiliently deformable tubes (19), wherein the member (2) is movable upon impact to engage successively one or more of the plurality of buffer means (19) in depend-ence upon the force of such impact.  In the preferred embodi-ment, the elongate section (2) comprises two arcuate portions arranged to engage successively respective resiliently deform-able tubes (19), with the section (2) being resiliently mounted upon the vehicle, for actuating switch means (S) for actuating an audible and/or visual indicator that at least an initial impact has occurred.
Patent CA-2028596-A1 (CA)
Inventor: FAURE JEAN-MARIE
IPC: A61J1/20
Filed: 1990-10-25
Abstract: Conditionnement pour une lente administration à un patient de volumes extrêmement précis de liquides stériles, notamment pharmaceutiques, nutritifs ou énergétiques, caractérisé en ce qu'il comprend nécessairement en combinaison au moins trois ensembles adaptés pour être connectés les uns aux autres, à savoir : - un régulateur de débit (1) - pour chaque liquide stérile à administrer, une poche (2) stérile à paroi continue, souple et mobile, qui délimite une cavité interne (92) en lui laissant au moins une ouverture (10) qui lui offre la possibilité de pouvoir communiquer ou non avec l'extérieur, - un piston (3), solide ou fluide, agissant sur la face interne ou externe de la paroi de cette poche (2) pour faire varier le volume de cette poche, et dans le cas ou le piston est fluide au moins un moyen d'alarme avertissant de la moindre fuite dans la paroi ou une de parois de la poche (2), en transformant de par son existence et ses propriétés, ce fait non perceptible en phénomène perceptible. Figure 7
Patent CA-2028840-A1 (CA)
Title: Method and apparatus for determination of a constituent in a fluid sample
Inventor: COLIN FERNAND J G
IPC: A61B5/15
Filed: 1990-03-09
Abstract: A method is provided for measuring the concentration of a constituent of a fluid sample, e.g. glucose in a glucose-containing blood sample, by means of an electrode device. Also provided are an electrode device comprising the electrodes used in the method, a sensor electrode for use in the method, and an apparatus for use in the measurement of the concentration of the constituent in the sample.
Patent CA-2029440-A1 (CA)
Inventor: LACOMBE ARNOLD E JR
IPC: B23Q37/00
Filed: 1990-11-07
Abstract: INTERFACE UNIT FOR DRILLS                 ABSTRACT OF THE DISCLOSURE            A universal interface unit is provided for use with a pneumatic drill having an axially extendable tool holder, the interface unit being adaptable for use with 'valve in head' type and 'thru head' type pneumatic drills of different sizes.  The interface unit includes a compact housing which fastens to the pneumatic drill and houses one or more proximity sensors for sensing the position of extendable tool holder and also houses valves for controlling air flow to the extend and retract ports of the drill.  The proximity sensors sense the position of the extendable tool holder and send signals to a remote controller.  The valves receives signals from the remote controller and communicate with the drill extend and retract ports to control the tool holder position.  The valves are plumbed to be easily convertible for use with either the 'valve in head' type of 'thru head' type pneumatic drills by removing two plugs and changing a fitting.  One or more unique air fittings are used to hold the interface unit to the pneumatic drill with a minimum of parts.  The air fitting includes pipe threads for mating with the pneumatic drill extend and retract ports and also includes external standard threads for receiving a nut which secures a mounting plate to the drill.  The interface unit is secured to the mounting plate in a manner which to locates the proximity sensors adjacent the proximity sensor targets located on a shaft connected to the extendable tool holder.        A single universal bracket is designed to be used with different sizes of drills.
Patent CA-2029991-A1 (CA)
Inventor: BRANSON MARK E
IPC: B65D33/22
Filed: 1990-11-14
Abstract: ABSTRACT OF THE DISCLOSURE     A bag structure includes a tubular bag body closed at one end and at its edges but open at the bag top.  A top closure is affixed to the bag body covering the bag top.  The bag body includes opposite wall panels which include a opposite outer layers and opposite inner layers, in which the outer layers are formed from a material that is more readily fusible than the material of the inner layers.  The top closure includes opposite attachment flanges composed of a material that is more readily fusible to the outer layer than the inner layer.  In one specific embodiment, a heated pressure bar is applied to heat seal the attachment flanges of the top closure to the outer layers of the bag body, while the inner layers of the wall panels remain intact and are not fused together.  The inner layer material has a fusion temperature higher than the temperature at which the outer layers and top closure attachment flanges fuse.
Patent CA-2033797-A1 (CA)
Title: Tarpaulin or similar material with improved tear resistance
Inventor: PRUDHOMME PIERRE
IPC: E04H15/54
Filed: 1991-01-08
Abstract: It is constituted by a complex comprising two woven textile structures (1, 2), imprisoning between them a deformable meshed bracing reinforcement (5) based on yarns having high mechanical performance. The connecting of the outer woven fabrics (1, 2) is obtained by means of a layer of material having a shear modulus permitting it to break when a force is applied to the bracing reinforcement, the threads of which preserve a displacement latitude, without breaking, during the action of a force exerted through the complex in a direction parallel to its surface, and such that, during this action, the meshed yarns are displaced and bear in succession against each other until offering a resistance opposing any progression of the said force.
Patent CA-2036139-A1 (CA)
Inventor: KIENER ANDREAS
IPC: C12P7/40
Filed: 1991-02-12
Abstract: A microbiological process is disclosed for the oxidation of methyl groups in aromatic 5- and 6-member ring heterocycles to form the corresponding carboxylic acids.      The heterocycle serves as the substrate and is unsubstituted on the carbon atoms adjacent to the methyl group to be oxidized. The reaction of the heterocycle takes place by means of microorganisms of the genus Pseudomonas utilizing toluene, xylene, or cymene. The enzymes of the microorganisms have been previously induced.
Patent CA-2036583-A1 (CA)
Title: Electronic double layer capacitor
Inventor: KURABAYASHI KEN
IPC: H01G11/22
Filed: 1991-02-19
Abstract: ABSTRACT OF THE DISCLOSURE      An electric double layer capacitor has a pair of polarized electrodes in the form of electrode bodies each comprising a porous sintered body, and a pair of current collectors for collecting electric charges stored in the polarized electrodes, the current collectors being in the form of electrically conductive films.  The electrically conductive films have surfaces dissolved by a solvent and joined to the electrode bodies with dissolved portions of the electrically conductive films being present in pores of the electrode bodies.  The polarized electrodes and the cur-rent collectors are held in stable contact with each other, with a reduced contact resistance therebetween.  The elec-tric double layer capacitor thus has a small internal resistance.
Patent CA-2037250-A1 (CA)
Title: Slurry fischer-tropsch hydrocarbon synthesis with high surface area reduced carbided iron/catalysts
Inventor: FIATO ROCCO A
IPC: C07C1/04
Filed: 1991-02-27
Abstract: ABSTRACT OF THE DISCLOSURE     Slurried, high surface area, Cu and  Group IA or IIA  dual metal promoted  Mn-Fe spinels  which are fully reduced and carburized provide  exception-ally high catalytic activity and selectivity in  the conversion of CO/H2  to alpha-olefins,  particularly when reduced and carbided in-situ.  These copper and Group  IA  or  IIA  metal  promoted   iron-manganese catalysts maintain  good  activity  and  selectivity under low pressure reaction  conditions in a  slurry bubble column reactor.
Patent CA-2037303-A1 (CA)
Title: Shotcreting process
Inventor: DRS JOSEF F
IPC: C09D1/06
Filed: 1991-02-28
Abstract: - 13 -                  Case 154-0200 ABSTRACT OF THE INVENTION     A process for improving the rebound properties of sprayed concrete comprises the inclusion therein of micro-silica which has been pretreated with from 2 to 25% by weight thereof of a liquid selected from water, an alkanolamine, a polyol and an aqueous solution of at least one concrete additive, an alkanolamine, a polyol and a water-soluble cellulosic compound. The process is especially effective when used in conjunction with the dry spraying process.
Patent CA-2037543-A1 (CA)
Title: Perfluoropolyethers and processes for preparing them
Inventor: MARRACCINI ANTONIO
IPC: C08G65/00
Filed: 1991-03-05
Abstract: "NEW PERFLUOROPOLYETHERS AND PROCESSES FOR PREPARING THEM"                             Abstract The invention relates to new peroxide perfluoro-polyethers having formula:              (I)   wherein:          A and B are end groups, X      represents a (R'0)mR" group where R' is selected from the class consisting of -CF2-  ,   -CF2-CF2-      and      , and R" is a perfluoroalkyl group; the value of "m" ranging from 0 to 6.        The invention relates also to processes for prepar-ing said perfluoropolyethers and other classes of non per-oxide  perfluoropolyethers derived therefrom.
Patent CA-2042693-A1 (CA)
Title: Silicone mechanical emulsions for hair care
Inventor: HALLORAN DANIEL J
IPC: A61K8/00
Filed: 1991-05-15
Abstract: SILICONE MECHANICAL EMULSIONS FOR HAIR CARE       ABSTRACT           A method is disclosed for treating hair by applying to the hair a formulation including at least one organo-silicon compound and at least one additive selected from the group consisting of surfactants, conditioners, thickeners, plasticizers, fragrances, propellants and preservatives.  The improvement relates to the step of incorporating the organo-silicon compound into the formulation in the form of a mechanically prepared emulsion, with the particle size of the organosilicon compound in the emulsion being less than about 350 nanometers.  A composition is also described.
Patent CA-2043159-A1 (CA)
Title: Butterfly valve
Inventor: MIYAIRI KAZUHIRO
IPC: F16K1/22
Filed: 1991-05-23
Abstract: S P E C I F I C A T I O N   1 .   T I T L E  O F  T H E   I N V E N T I O N     A Butterfly valve 2 .   A B S T R A C T  O F  T H E   I N V E N T I O N     At  the outer-periphery contact portion of a butterfly disk of a butterfly valve, the sealing area close to the shaft is formed smaller than  other  sealing  areas.   Thus,  when  the  valve is closed by the butterfly disk, the outer-periphery contact portion of the butterfly disk almost simultaneously starts contacting a seat ring throughout the periphery because the area of the portion is smaller than other sealing areas.   Therefore,  the  sealing  effect for  a  long time is expected because  the  shaft  is  hardly  scratched and  the  seat  ring is hardly abraded.
Patent CA-2044187-A1 (CA)
Inventor: CHESLER RONALD B
IPC: H04B10/18
Filed: 1991-06-10
Abstract: A dispersion equalization technique for correcting dispersion-induced  signal degradation  within  optical fibers is disclosed herein.  The present invention prescribes a technique for synthesizing an optical fiber R of length L adapted to induce substantially zero dispersion at a wavelength W' included between first and second wavelengths W1 and W2.  The optical fiber R includes first and second segments M and C of variable lengths L1 and L2  which induce substantially zero dispersion at the wavelengths W1 and W2, respectively.
Patent CA-2046224-A1 (CA)
Title: Process of making ready-to-eat cereals
Inventor: CALANDRO THOMAS P
IPC: A23L1/164
Filed: 1991-07-04
Abstract: A ready-to-eat cereal is prepared from a cookie formulation, including flour, sugar, shortening or fat and a bowl-life extender. The bowl-life extender includes a waxy starch, preferably a pregelatinized starch from waxy maize in an effective amount to improve the bowl life of the cereal pieces without causing the cereal pieces to become excessively firm.      A cold water swelling granular starch is also included with the pregelatinized waxy starch to improve bowl life of the cereal. The dough is prepared by mixing the ingredients to form a cookie dough-like consistency. The dough may be rotary molded or sheeted and cut into bite-size pieces and baked to leaven the cereal pieces. The baked pieces may then be coated with an optional sugar glaze.
Patent CA-2046318-A1 (CA)
Title: Telecommunication combination comprising a switched telecommunication network and a portable radio terminal
Inventor: RAITH ALEX K
IPC: H04Q3/58
Filed: 1990-12-06
Abstract: The invention relates to a communication method and a combination of a switched telecommunication network and connected to the network, a first automatic branch exchange or residential equipment for a subscriber, a second automatic branch exchange or residential equipment for a subscriber, possibly also a telepoint, and a portable radio terminal constituting part of a residential equipment or an extension to an automatic branch exchange, the portable radio terminal when served by a radio transceiver other than its residential or exchange radio transceiver uses the branch exchange or telepoint and the network for calling its residential base radio station or branch exchange and reporting serving branch exchange or telepoint or a temporary number to a location store, calls to the portable radio terminal thereafter being transferred by the residential equipment or branch exchange through the network to the branch exchange or telepoint in accordance with information in the location store, whereby the portable radio terminal may call and be called through a network and proximate branch exchange or telepoint.
Patent CA-2047100-A1 (CA)
Title: Cantilevered table - seating unit
Inventor: WANKE DAVID
IPC: A47B83/02
Filed: 1991-07-15
Abstract: ABSTRACT OF THE DISCLOSURE      A cantilevered table - seating unit comprising a table top, four easy to access seating positions for adults and/or older children and two enclosed seating positions for younger children.  The two enclosed seating positions have removable covers which serve to increase the area of the table top when one or both of the enclosed seating positions are not being used, provide arm rests for each of the four seating positions for adults and/or older children, and function as booster seats to raise the height of the enclosed seating positions in relation to the table top.  Four legs, combined into a couple of cross braces, serve to support the table top and seating areas in a way that provides easy access to the four adult and/or older child seating positions, provide a wide base for the unit to prevent tipping when the unit is unevenly loaded, and prevent sway along the length of the unit.                     ( 2 )
Patent CA-2047739-A1 (CA)
Inventor: CORBETT WILLIAM J
IPC: C04B41/53
Filed: 1990-02-15
Abstract: A fiber-organic composition includes from about 5% to 50% by volume of uniformly dispersed, non-planar or three dimensionally random oriented inorganic fibers or whiskers, and a thermoplastic material such as paraffin wax. The composition also includes surfactants to promote wetting and dispersion of the inorganic fibers or whiskers. These materials are subjected to high shear mixing to form a uniform randomly oriented three-dimensional dispersion of the inorganic fibers or whiskers. After molding the mixture in such a manner so as not to disrupt the uniform, three-dimensional orientation of the fibers or whiskers, a majority of the thermoplastic material is removed leaving a shaped body or preform having sufficient strength for handling. The shaped body or preform can then be infiltrated with molten metal or the like to form a metal matrix composite.
Patent CA-2047830-A1 (CA)
Inventor: KOZEK EDWARD P
IPC: G09F13/14
Filed: 1991-07-24
Abstract: In an exit sign, an insertable battery pack module is designed to fit in the lower portion of the exit sign housing.          This battery pack module incorporates a pair of lamps as well as a battery, battery charger and transfer circuitry.  The module incorporates a pair of reflective surfaces so that light form lamp filaments tangentially hit at least a portion of the exit sign stenciled area along the bottom portion of the letters forming the word EXIT.  If an exit sign is only to have utility AC power, then the module need not be installed within the exit sign.  In this configuration, the bottom portion of the exit sign can incorporate a slidable panel which is removed if the battery pack module is later inserted.  The battery pack module incorporates the indicator light and test button which then would show through the area where the panel formerly resided.  This exit sign provides a clean appearance unlike prior art exit signs wherein the battery backup module is typically added onto the outside of the existing exit sign.
Patent CA-2049020-A1 (CA)
Title: A process for producing glycoside esters and compositions comprising comprising glycoside esters
Inventor: KIRK OLE
IPC: A61Q11/00
Filed: 1990-02-15
Abstract: A Process  for Producing Glycoside Esters and Compositions Comprising Glycoside Esters ABSTRACT            Fatty acid esters of methyl glycosides are prepared by re-acting a fatty acid or ester with a methyl glycoside in the presence of an enzyme catalyst, in particular a lipase. The resulting fatty acid esters are preferably monoesters.            The methyl glycoside fatty acid esters may be used as sur-face-active agents in cleaning compcsitions or personal care products.