baber/WOPTO huggingface dataset:
Patent CA-2071925-A1 (CA)
Title: Regulated flow canister purge system
Inventor: COOK JOHN E
IPC: F02M25/08
Filed: 1990-12-05
Abstract: The evaporative emission control system for an internal combustion engine purges the vapor collection canister to the intake manifold through a purge regulator controlled by the engine ECU. The purge regulator comprises a diaphragm valve and an electronic vacuum regulator. The purge regulator functions to allow a purge flow rate correlated with a control signal from the engine ECU and manifold vacuum, to maintain the purge flow rate substantially constant in response to certain changes in the magnitude of manifold vacuum, and to re-adjust the purge flow rate in correlation with changes in the control signal from the engine ECU.
Patent CA-2072049-A1 (CA)
Title: Procede de soudage de materiaux thermoplastiques avec projection de gaz chaud
Inventor: MARLIN PASCAL
IPC: B29C65/42
Filed: 1992-06-23
Abstract: ABR?G? DESCRIPTIF Le procédé de soudage d'au moins deux éléments en matériaux thermoplastiques comporte l'étape de chauffer, pour projection sur la zone de soudage, un courant de gaz de projection comprenant au moins 20% d'hélium, le complément étant un gaz neutre ou un mélange de gaz neutres. Pour les applications de soudage avec cordon de soudage, le gaz de projection est chauffé à une température entre 200 et 350.degree.C. Pour les applications pour la formation d'enroulements filamentaires, le gaz de projection est chauffé à une température supérieure à 1000.degree.C.
Patent CA-2072052-A1 (CA)
Inventor: MACDONALD IAN R
IPC: G02B6/28
Filed: 1992-06-23
Abstract: An improved fiber optic delay line filter is disclosed having each fiber optic light path terminate on a corresponding photodetector adapted to convert the received optical signal to a commensurate electrical signal in bi-polar proportion to an electrical bias level provided to the photodetector where the bias level for each photodetector is independently settable and the outputs of all of the photodetectors are summed to produce an output electrical signal that is filtered by the arranged fiber optic delay line transversal filter.
Patent CA-2073252-A1 (CA)
Title: Recloser apparatus
Inventor: KAMP EUGENE L
IPC: H01H75/04
Filed: 1990-12-21
Abstract: A recloser apparatus is provided with an enclosure (40) in which a current interrupter assembly (49) is disposed that includes a pair of relatively movable contacts (50, 54). An opening assembly (60) is included for opening the contacts and a closing assembly (66), including a high voltage solenoid coil (61) and plunger (116) moves one of the contacts (54) to the closed, current-carrying position. A sensor (46) senses a fault current in the apparatus and a control assembly (47) actuates the contact opening assembly (60) and alternately actuates the closing and opening assemblies (66, 60) for a predetermined  number of opening cycles in response to a further sensed fault current. The control assembly (47) also actuates automatic movement of the operating arm (44) to the lower position once the, closing and opening assemblies (66, 60) have been actuated for the predetermined number of opening cycles such that the operating arm (44) serves as a signal that the recloser is locked out.
Patent CA-2075449-A1 (CA)
Title: I/o controller apparatus and method for transferring data between a host processor and multiple i/o units
Inventor: LAMB JOSEPH M
IPC: G06F13/12
Filed: 1992-08-06
Abstract: ABSTRACT          An I/O controller for transferring data between a host processor and one or more I/O units. The controller interleaves processor command transfers (PIO) in the midst of direct memory access (DMA) transfers without repeated data moves.  DMA transfers are suspended temporarily during the priority PIO transfer.  An interrupt Scanner, for scanning the various I/O units, is also prioritized with respect to DMA and PIO transfers.     Doc. 8C/32
Patent CA-2077121-A1 (CA)
Title: Process for removing nox and sox from exhaust gas
Inventor: SKELLEY ARTHUR P
IPC: B01D53/75
Filed: 1992-08-28
Abstract: Exhaust gases containing oxides of nitrogen and sulfur from a fired process heater, a fossil fuel fired boiler, or a chemical process are diverted from a stack prior to admission to the atmosphere through a duct system containing heat exchangers that reduce the exhaust gas from an elevated temperature, if any, to about ambient temperature. Any heat extracted from the exhaust gas may be transferred to the boiler feed water which would serve to reduce the energy cost of operating a boiler.      Once the exhaust gas is cooled to about ambient temperature, the gas is then mixed with an oxidant, such as ozone, at a preselected molar ratio to transform the oxides to higher orders of nitrogen and sulfur oxides to increase the absorbability of the nitrogen and sulfur oxides in a reagent solution. The reagent absorbs the oxidized contaminants from the exhaust gas. The oxides are transformed to dilute acids which are then neutralized to form salts that are acceptable for discharge to a municipal waste water treatment plant. The treated exhaust gas is then emitted from an exhaust stack containing contaminants at a level meeting air quality standards. Additionally any heat recovered from the exhaust gas can be used to lower operating costs.
Patent CA-2077572-A1 (CA)
Inventor: NIIBE MASAHITO
IPC: G03F7/20
Filed: 1992-09-04
Abstract: A temperature distribution of an object, such as an optical element, onto which radiation energy is irradiated, is measured.  The change of the shape of the object is controlled by varying the temperature of a part of the object on the basis of the measured temperature distribution to stabilize the shape of the object.  Also, the shape of the object being irradiated is stabilized by causing the same temperature distribution in the object when in the thermally stable condition to be generated in the object while it is being irradiated.  If the shapes of masks used to manufacture semiconductor devices are stabilized by using the above methods, highly integrated semiconductor devices can be manufactured.
Patent CA-2077889-A1 (CA)
Inventor: FOLSOM ALBERT P
IPC: B62B3/14
Filed: 1992-01-10
Abstract: A waterproof advertising display device (10) includes a captive calculator (70) and is particularly adapted for use on a shopping can (110) of the telescopingly nestable type. Broadly speaking, display device (10) includes display plate (22) for moun-ting on the front wall (152) of a shopping cart upper rear receptacle (150) and for receiving advertising copy (90), and transparent cover plate (42) attached. Tongue and groove seal (94) between plates (22, 42) keeps water from advertising copy (90). Calculator assembly (60), attached to cover plate (42), includes a stand-off shelf (62) for holding captive calculator (70) at a preferred angle for use by a shopper.
Patent CA-2077920-A1 (CA)
Inventor: GILSON JEAN-PIERRE
IPC: C10G45/12
Filed: 1992-09-10
Abstract: A catalyst of use in hydroconversion processes comprises platinum supported on a silica-alumina carrier, which carrier has been prepared from an amorphous silica-alumina having a pore volume of at least 1.0 ml/g, the carrier having been impregnated with the platinum by a process comprising contacting the carrier with a platinum salt in the presence of a liquid under acidic conditions.        A process for the preparation of the aforementioned catalyst comprises preparing a carrier from an amorphous silica-alumina having a pore volume of at least 1.0 ml/g and impregnating the carrier so-formed with platinum by contacting the carrier with a platinum salt in the presence of a liquid under acidic conditions.      The catalyst is of general use in hydroconversion processes, but exhibits a high level of activity and selectivity in the preparation of middle distillates by the hydroconversion of hydrocarbons prepared by the Fischer-Tropsch process.
Patent CA-2078282-A1 (CA)
Title: Multiple wye catalytic cracker and process for use
Inventor: MILLER CHARLES B
IPC: B01J8/26
Filed: 1992-09-15
Abstract: ABSTRACT       The conventional wye (where the clean regenerated catalyst returns from the regenerator to contact the feed as it enters the riser) is replaced with two or more wyes, all connected between the regenerator outlet and the inlet to a common short cracking riser. Each wye has a separate injector which can inject: e.g., diesel oil, so that neat (unmixed) diesel contacts clean catalyst and the mixture rises up a smaller riser before entering a short main riser where the largely cracked mixture is admixed with similar cat-vacuum bottoms, etc. mixtures from the other wyes. Most cracking occurs before entering the common riser so the effect is similar to a riser cracker operating on a single unmixed feed.
Patent CA-2079085-A1 (CA)
Inventor: RUSSELL JIM L
IPC: F16L55/07
Filed: 1992-09-24
Abstract: A meter bypass swivel connector is molded with a 1/4" hole located within its upper body portion.   A ball check screen or guard separates its upper body portion from its lower body portion to prevent anything from obstructing the customer's service line.  A ball check assembly, including a ball, seat, and base, is snapped or screwed into the lower portion of the meter bypass swivel connector.  The ball check is configured to allow an uninterrupted or unobstructed flow of gas through the customer's line with pressure as low as 5" of water column.  The lower body portion is surrounded by a flange and a swivel nut rests on a metal backup ring disposed on the flange.  The metal ring protects the nonferrous swivel connector from the metal meter nut when the swivel is attached to the gas meter connection.  A swivel gasket installed in the field "seals" the meter bypass swivel connector to the gas meter when the meter nut is tightened to the meter.  A one-way coupler is attached in the hole in the meter bypass swivel connector in such a manner that the possibility of a gas leak would be minimal or impossible.  The coupler is designed to allow rapid connection of a supplemental gas source through the coupler and the upper portion of the body into the customer's gas line.  The connection on the coupler for the supplemental gas flow includes a tamper-resistant, plastic removable plug.  Tampering with the protective cap will result in visible evidence to the gas company of the tampering.  In any event, any gas taken from the one-way coupler would be measured gas.  The meter bypass swivel connector is preferably an  injection  molded,  nonferrous,  electrically  insulating device.  Ultraviolet rays, ambient temperatures, humidity and odorants (injected by gas companies into natural gas systems for purposes of leak detection) will not affect its integrity. It is reusable, lightweight, and paintable.
Patent CA-2079797-A1 (CA)
Inventor: OLAFSON STEPHEN M
IPC: C22B3/36
Filed: 1991-03-26
Abstract: A process for recovery of metal values from a mixed metal chloride containing leach solution by contacting the leach solution with a water immiscible solution of a complexing agent selective for the neutral chloride of the metal to be recovered and a chelating agent having affinity for the cation of the metal to be recovered. The chloride ion is washed from the water solution by contact with a chloride ion washing solution. The water immiscible solution containing the chelated metal ion is stripped with an aqueous stripping solution. The metal is recovered from the aqueous stripping solution.
Patent CA-2080121-A1 (CA)
Title: Anthraquinones as inhibitors of sulfide production from sulfate-reducing bacteria
Inventor: ANDERSON ALBERT G
IPC: A01N35/06
Filed: 1991-03-19
Abstract: A process for inhibiting sulfide production by sulfate-redu-cing bacteria by contacting certain anthraquinones with the medi-um containing the sulfate-reducing bacteria is disclosed, as welt as an automated screening test for such inhibition.
Patent CA-2082470-A1 (CA)
Title: Portable humidifier
Inventor: CHIU BERNARD
IPC: F24F6/10
Filed: 1992-11-09
Abstract: ABSTRACT OF THE DISCLOSURE        A humidifier including a base defining a boiler cavity; a liquid supply supported on the base and having a discharge opening communicating with the boiler cavity and adapted to maintain a given level of liquid therein; and an evaporation unit removably mounted on the base and adapted to induce evaporation of liquid contained thereby, and a vapor passage having a receiving end communicating with said cavity so as to receive vapor therefrom and a discharge end for discharging the vapor received from the cavity.  Also included is an electrical supply for supplying electrical energy to the heater; a switch mounted on the evaporation unit and adapted in one condition for deactivating the electrical supply and in another condition for activating the electrical supply; and an actuator for producing the one condition in response to separating movement between the base and evaporation unit.
Patent CA-2088816-A1 (CA)
Title: Device for Detecting Print Misregisters, Arranged in a Rotary Printing Machine
Inventor: ROCH ROGER-HENRI
IPC: G01B11/00
Filed: 1993-02-04
Abstract: The device for detecting print misregisters is arranged in a rotary printing machine and comprises at least a first camera (34) snapping an image of a sample area (16) of the print (12) an a travelling web (10) according to a first resolution, as well as an electronic and computer appliance (39, 50) for digitalizing the image and comparing it with a pre-registered reference image. The said camera (34) is associated with a second camera (24) snapping the global print (12) according to a second, lower, resolution, the comparative results issued by the second camera (24) being used in the counter-reaction loop of the function control of the first camera (34).
Patent CA-2090565-A1 (CA)
Inventor: JARRETT PETER K
IPC: C08G65/32
Filed: 1993-02-26
Abstract: This invention relates to materials for medical or veterinary use that possess considerably improved properties with regard to friction. The invention also relates to the production of such materials from existing materials that possess suitable bulk properties, but inappropriate frictional properties.       This invention also relates to a hydrophilic coating material that provides improved frictional properties.
Patent CA-2092357-A1 (CA)
Title: Process for the synthesis of 5-[(substituted)-amino]-8- [phenyl or substituted-phenyl]-3h, 6h-1, 4, 5a, 8a-tetraazaacenaphthylen-3-ones
Inventor: CAIN WILLIAM T
IPC: C07D487/04
Filed: 1993-03-24
Abstract: 31,808-00 AN IMPROVED PROCESS FOR THE SYNTHESIS OF    5-[(SUBSTITUTED)AMINO]-8-[PHENYL OR SUBSTITUTED-PHENYL]-3H,6H-1,4,5a,8a-ABSTRACT           A novel process for producing 5-[(substituted)amino]-8-[phenyl or substituted-phenyl]-3H,6H-1,4,5a,8a-tetraazaace-napthylen-3-ones of the formula:                               Where R1, R2 and R3 are defined in the specification by reacting a 4,5-dihydro-7-[phenyl or substituted phenyl]pyrazolo[1,5-a]pyrimidine-3-carboxaminde with carbon disulfide and a suitable base and a lower alkyl iodide to give a 5-(lower alkylthio)-8-[phenyl or substituted phenyl]-3H,6H-1,4,5a,8a-tetraazaacenphth-ylen-3-one which is further reacted with an amine of the formula:               to give the desired compounds.
Patent CA-2092482-A1 (CA)
Inventor: EILENBERGER GERT
IPC: H04Q11/00
Filed: 1993-03-25
Abstract: A multistage switching facility for optical signals where time conversions are only used in the last stage while only space and frequency conversions are used in the other stages. The last stage contains space, time and frequency position converters resulting in a facility in which no signal overtaking is possible when multiple routing is provided in the switching facility.
Patent CA-2096392-A1 (CA)
Inventor: MILES LAWRENCE D
IPC: B05C1/08
Filed: 1993-05-17
Abstract: An apparatus and method for printing or coating material and supporting the material during printing or coating thereon by either offset-gravure or direct roll equipment includes a cylindrical support member having flexible bristles radiating therefrom. The bristles are of a suitable diameter, length and spacing to form a generally cylindrical brush that is oriented in spaced relation to a contact printing or coating roller and adapted to yield or bend when coming in contact with contoured or uneven portions of the material and thereby fully support the lower surface of the material as the upper surface of the material is being printed upon or coated.
Patent CA-2098258-A1 (CA)
Title: Process for the preparation of bridged, chiral metallocene catalysts of the bisindenyl type
Inventor: ROHRMANN JUERGEN
IPC: C07F7/00
Filed: 1993-06-11
Abstract: Abstract Process for the preparation of bridged, chiral metallocene catalysts of the bisindenyl type A process for the preparation of a compound of the formula III                               (III) comprising, deprotonating a solution or suspension of an indene of the formula I                                             (I) in a solvent or solvent mixture containing a base to give a suspension of a metallated product of the compound of formula I, adding to the suspension of the metallated product a compound of the formula II                     X - R6- X                       (II) and reacting the suspension of the metallated product and compound of the formula II.
Patent CA-2101332-A1 (CA)
Title: Antibody polycation conjugates
Inventor: BIRNSTIEL MAX L
IPC: A61K47/48
Filed: 1992-03-24
Abstract: New protein-polycation conjugates which are capable of forming soluble complexes with nucleic acids contain as their protein component an antibody directed against a cell surface protein, with the ability to bind to the cell surface.protein so that the complexes formed are absorbed into cells which express the cell surface protein and are expressed therein. Complexes for use in pharmaceutical preparations contain a therapeutically or gene therapeutically active nucleic acid.
Patent CA-2101611-A1 (CA)
Title: Hemostatic clip cartridge with clip retaining means
Inventor: TAYLOR WARREN
IPC: B65D85/00
Filed: 1993-07-29
Abstract: ABSTRACT OF THE DISCLOSURE            A holder  for storing and retaining a plurality of hemostatic clips.  The holder is produced as an integrally molded unitary piece having a plurality of longitudinally spaced chambers, each having a central post to support a clip and integrally formed guiding means for guiding the jaws of an associated forceps-type clip applier by which a clip within a selected chamber may be removed from the cartridge.  A resilient projection is formed in the transverse walls of each clip chamber on each side of the center post at a point spaced a predetermined distance above each clip leg of an open clip retained in the chamber.
Patent CA-2101820-A1 (CA)
Title: Window glass antenna device
Inventor: MATSUOKA YOSHINORI
IPC: H01Q1/12
Filed: 1993-08-03
Abstract: ABSTRACT OF THE DISCLOSURE      A window glass antenna device defrosting heaters for use as part of a reception antenna on an automobile win-dow glass panel.  The defrosting heaters include at least first and second heaters each comprising a plurality of heater wired disposed on the window glass panel, a first bus bar interconnecting ends of the heater wires, and a second bus bar interconnecting opposite ends of the heater wires.  A first choke coil is connected between the first bus bars of the first and second heaters and a battery, and disposed near the first bus bars, and a second choke coil is connected be-tween the second bus bars of the first and second heaters and the battery, and disposed near the second bus bars.  The first choke coil has at least two windings disposed around a core, the windings being connected respectively to the first bus bars of the first and second heaters such that magnetic fluxed generated in the core by a first electric current flowing through the first heater and a second electric cur-rent flowing through the second heater will be canceled.  The second choke coil has at least two windings disposed around a core, the last-mentioned windings being connected respec-tively to the second bus bars of the first and second heaters such that magnetic fluxes generated in the core by the first electric current flowing through the first heater and the second electric current flowing through the second heater will be canceled.
Patent CA-2103686-A1 (CA)
Title: Drainage pipe
Inventor: DROSSBACH HUBERT M
IPC: E01F5/00
Filed: 1993-08-06
Abstract: ABSTRACT OF THE DISCLOSURE      The invention pertains to a three-walled drainage pipe made of plastic, which may be used as a multi-purpose or partial drainage pipe,  a smooth-walled inner pipe being surrounded by a corrugated pipe and welded to its wave troughs and having slit-like openings for the passage of drainage liquid,  and in turn the corrugated pipe being surrounded by an outer pipe which is indented into the wave troughs and perforated only in the pipe crown area of the openings, the remainder of the outer pipe being smooth.  The addition of an outer pipe provides better rigidity and increases   the   crushing   strength   while   simplifying manufacture and making it cheaper.
Patent CA-2107544-A1 (CA)
Title: Method of Providing Fuel for an Iron Making Process
Inventor: GREENWALT RICHARD B
IPC: C21B13/14
Filed: 1993-10-01
Abstract: The invention provides a method for both disposing of an environmentally undesirable material comprising petroleum coke and the sulfur and heavy metals contained therein and of providing fuel for a process of making molten iron or steel preproducts and reduction gas in a melter gasifier having an upper fuel charging end, a reduction gas discharging end, a lower molten metal and slag collection end, and means providing an entry for charging ferrous material into the melter gasifier; introducing petroleum coke into the melter gasifier at the upper fuel charging end; blowing oxygen-containing gas into the petroleum coke to form at least a first fluidized bed of coke particles from the petroleum coke; introducing ferrous material into the melter gasifier through the entry means, reacting petroleum coke, oxygen and particulate ferrous material to combust the major portion of the petroleum coke to produce reduction gas and molten iron or steel preproducts containing heavy metals freed from combustion of the petroleum coke and a slag containing sulfur freed from combustion of the petroleum coke.
Patent CA-2111970-A1 (CA)
Title: Liquid detergent with stabilized enzyme
Inventor: ESTELL DAVID A
IPC: C11D3/386
Filed: 1992-06-29
Abstract: Liquid detergent containing enzymes particularly proteases are stabilized against enzyme degradation prior to use by inclusion of an inhibitor of the enzyme which binds to the enzyme such that prior to use of the detergent at least about 90% of the enzyme is bound to the enzyme inhibitor essentially at the enzyme active site. Such enzyme inhibitor so selected can be used effectively in concentrations much lower than previously taught.
Patent CA-2113558-A1 (CA)
Inventor: BUESS MICHAEL L
IPC: G01N24/00
Filed: 1992-04-24
Abstract: The sensitive detection of explosives and narcotics by nuclear quadrupole resonance (NQR) is performed at low rf power by assuring that the rf field strength is larger than the local magnetic field. Additionally, it has been recognized that signal-to-noise ratio of a signal induced by a specimen of fixed size decrease by only the square root of the coil size. Thus, rather than scaling power linearly with coil size, as conventionally done to maintain the same rf field intensity, the power needs only be increased by the square root of the increased coil size to assure maintenance of the same signal to noise ratio. This technique permits the use of larger coils than previously used. The invention is useful for both volume coils and surface coils.