baber/WOPTO huggingface dataset:
Patent CA-2017577-A1 (CA)
Title: Handling and disposal of toxic chromium dust
Inventor: CARLYLE ROBERT A
IPC: C22B7/02
Filed: 1990-05-25
Abstract: ABSTRACT OF THE DISCLOSURE     Dust collected in and around electric arc furnaces used in smelting chromium ores frequently contains small percentages of highly toxic hexavalent chromium compounds.  This toxic waste may be eliminated by collecting the contaminated dust into plastic bags which are then placed in the furnace prior to the next batch of feed so that the contaminated dust, while covered with feed, will be exposed to the heat of the furnace which will melt the plastic bags and convert the hexavalent chromium to non-toxic trivalent compounds thereby eliminating the need to dispose of the contaminated dust through a toxic waste facility, or without any other cost  or equipment.
Patent CA-2017885-A1 (CA)
Title: 3-hydroxybutyrate polymer composition
Inventor: HERRING JOHN M
IPC: C08K5/00
Filed: 1990-05-30
Abstract: A polyhydroxyalkanoate composition in which organophosphonic or organophosphinic acids, esters and derivatives thereof together with oxides, hydroxides or carboxylic acid salts of Group I to V metals are included as nucleating agents., A process for the production of the composition is also claimed. The composition is particularly a 3-hydroxybutyrate polymer composition.
Patent CA-2018066-A1 (CA)
Inventor: OLSON MILFORD E
IPC: B60K13/02
Filed: 1990-06-01
Abstract: The engine air intake apparatus comprises a planar base plate incorporating a curved duct which lies in the plane of the  base  member  initially and  then  curves   inwardly therethrough.  The inwardly curved portion of the duct lies toward a trailing  edge of  the  base plate member and  is covered by a cover plate member which seats onto and over the  trailing end portion of  the  base plate member  in a parallel plane slightly above the plane of the base plate member. When mounted onto the hood of a vehicle,  the leading edge of the base plate member,  which is slightly elevated above the level of the hood, provides a leading end splitter plow arrangement to the apparatus for removing hood surface water from the air stream flowing along the hood. The duct incorporates  a  further water removal apparatus comprising  an  interior  separator  plate  and  drain  at  the trailing end of the curve within the duct for collecting airborne water particles thereon which are thrown off the air stream by centrifugal force as the air stream negotiates the  curve  and  for  eliminating  the  water particles  from within the apparatus.
Patent CA-2018283-A1 (CA)
Title: Method of operation of air cleaner used in motor vehicle
Inventor: HAYASHI NOBUHIRO
IPC: H02J7/00
Filed: 1990-06-05
Abstract: Method of operation of an air cleaner used in a motor  vehicle, comprises  the steps of:   intermittently turning off a blower motor of the air cleaner at a given interval; detecting ripple components included in an output voltage developed by a dynamo driven by an engine of the motor vehicle by detecting the output voltage between dc power supply lines connected from the dynamo to the air cleaner; and maintaining turn off condition of the blower motor when the ripple component is lower than a given level during intermittently turning off the blower motor.  When the engine is stopped, during the on interval of the blower motor, stoppage of the engine cannot be detected by watching the  ripple  components  included  in  power  supply  lines. However,  during  the  following  intermittent  turning  off interval, stop of the engine can be detected because the ripple component due to operation of the blower motor is not developed.  Therefore, the blower does not continue to run after stopping of the engine, so that power stored in the battery is saved.
Patent CA-2019351-A1 (CA)
Title: Fault tolerant memory
Inventor: REIFF FRANCIS H
IPC: H03M13/00
Filed: 1990-06-20
Abstract: ABSTRACT OF THE INVENTION         A method for organizing data in a memory so that fault tolerance of the memory is optimized.  Reed-Solomon symbols are stored vertically in RAM devices and a block of data consisting of such symbols is distributed throughout an array of thirty-two RAM devices organized in two columns of sixteen.
Patent CA-2019933-A1 (CA)
Title: Site-assembled swimming pool structure
Inventor: VULTAGGIO MARK D
IPC: E04H4/00
Filed: 1990-06-27
Abstract: Abstract Of The Disclosure A  swimming  pool  structure  for  on-site  assembly including a flexible liner supported by a surrounding wall  of  side-by-side,  wooden  staves.    One  of  the vertical edges of each stave is formed as a concave and the other as a convex surface.   When  the staves are arranged side-by-side, the convex surface of each stave nests within and contacts  the concave surface of the adjoining stave.   A plurality of cables pass entirely around the wall, and the cables are tensioned to urge the   staves   into   tightly   engaged   relation.     A downwardly-facing, U-shaped track member extends around the upper periphery of the wall and snugly engages the upper ends of the staves.   The track member includes supplemental  wall  portions  forming  open  channels  for releasably receiving bead portions on the pool liner and a removable cover.  A closed-cell, polyethylene sheet is preferably interposed between the vertical wall of the pool liner and the staves to provide a protective layer for the liner.
Patent CA-2020494-A1 (CA)
Inventor: BERTAUD YVES
IPC: C25C3/34
Filed: 1990-07-05
Abstract: 18 PROCEDE D'OBTENTION D'URANIUM A PARTIR D'OXYDE ET UTILISANT UNE VOIE CHLORURE Procédé d'obtention d'uranium métallique à partir d'un composé oxydé de l'uranium caractérisé en ce que, dans une première étape, on traite ce composé oxydé par du chlore et du carbone pour obtenir un chlorure que l'on réduit, dans une deuxième étape, par électrolyse ou par métallothermie à l'aide d'un métal réducteur.
Patent CA-2022260-A1 (CA)
Title: Method of handling errors in software
Inventor: BRUCKERT WILLIAM
IPC: G06F11/10
Filed: 1990-07-30
Abstract: ABSTRACT    The software error handling determines the nature of the fault and takes different action depending upon the nature of the fault.  If the fault prevents the data processing system from continued reliable operation, then the element causing the fault is immediately disabled.  Otherwise, the element which is the source of the fault is treated so that it does no harm to the system and causes no further faults.   The element can then be completely handled during normal software status checks.
Patent CA-2026515-A1 (CA)
Title: Immunoassay using magnetic particle
Inventor: OKADA MASAHISA
IPC: G01N33/543
Filed: 1990-09-28
Abstract: An immunoassay method using magnetic particles comprising a core and a coating layer on the surface thereof.      The core comprises an organic polymer and the coating layer comprises an iron oxide type ferrite coating layer. An antigen or an antibody is bound onto the surface of the coating layer, and the particle has a particle size of 0.2 to 3 µm.
Patent CA-2028542-A1 (CA)
Title: Mobile ballast plow for receiving and distributing track ballast
Inventor: THEURER JOSEF
IPC: E01B27/06
Filed: 1990-10-25
Abstract: A mobile ballast plow comprises a machine frame supported on a railroad track by undercarriages for mobility in an operating direction, a ballast conveying device arranged on the machine frame to receive ballast and to convey the received ballast to a discharge end of the device, and a power-driven ballast storage silo arranged on the machine frame to receive the conveyed ballast from the discharge end of the ballast conveying device. The silo has a ballast discharge opening and a ballast conveyor band extending in the direction of the longitudinal extension of the machine frame and forming a bottom support for the ballast received from the ballast conveying device discharge end, the ballast conveyor band having an end discharging the ballast into the ballast discharge opening. A ballast plow arrangement receives and distributes ballast discharged from the opening.
Patent CA-2030295-A1 (CA)
Inventor: ROUSSEL REAL
IPC: A45F5/00
Filed: 1990-11-19
Abstract: La présente invention se rapporte à un étui(porté a la ceinture) pour une lumière de poche qui peut être transformé en bandeau pour maintenir la lumière de poche sur le côté de la tête.
Patent CA-2031100-A1 (CA)
Title: Thermoplastic copolyetherimide ester elastomer-acrylate rubber compositions
Inventor: HANS PAUL J
IPC: C08L33/08
Filed: 1990-11-29
Abstract: ABSTRACT OF THE DISCLOSURE         Thermoplastic elastomer compositions are disclosed which comprise a thermoplastic copolyetherimide ester blended with a crosslinkable alkylacrylate rubber component.  The rubber is subject to crosslinking during melt mixing resulting in a thermoplastic processable material.
Patent CA-2031626-A1 (CA)
Title: Sales records
IPC: B42D15/00
Filed: 1990-12-06
Abstract: Sales records comprising alphanumeric characters that are  resistant  to  counterfeiting  can  be  made  by  printing different parts of at least some of the characters making up the record is a plurality of colors.
Patent CA-2032738-A1 (CA)
Title: Method and apparatus for striping a tire sidewall
Inventor: CETNAR JAMES F
IPC: B60C13/00
Filed: 1990-12-19
Abstract: Abstract A technique and apparatus for imparting a decorative strip onto the sidewall of a cured tire. The tire is sealed between a pair of chucks and inflated. The sidewall portion of the tire to be decorated is maintained in a flat horizontal posture by the chucks and the inflation pressure. The tire is then rotated whilea gun, having a nib in contact with the tire sidewall, dispenses a paint directly onto the tire. A heating element for curing or partially curing the paint is maintained in juxtaposition to the sidewall for beating the paint strip as it passes thereunder.
Patent CA-2033318-A1 (CA)
Inventor: LEGGE RONALD
IPC: H04R17/10
Filed: 1990-12-27
Abstract: A method of filtering an AC signal using a piezoelectric beam is provided.  A piezoelectric film is formed on a mechanical support and a portion of the piezoelectric film forms a beam which extends beyond the mechanical support so that a cavity is formed underneath the beam, and the beam is free to vibrate in the cavity at a resonant frequency when an acoustic wave is propagated in the piezoelectric layer.     A depletion region is formed under a Schottky contact which serves as a drive electrode.  An unfiltered AC signal is coupled to the drive electrode thereby establishing an acoustic wave when the unfiltered AC signal comprises a component at the resonant frequency.  Surface charge on the piezoelectric film resulting from vibration of the beam allows the resonant frequency component of the unfiltered AC signal to pass through the depletion region.  Alternatively, the resonant frequency component can be passed by a tunnel current through the cavity.
Patent CA-2036092-A1 (CA)
Title: Minimum length fluorescent tube dunnage element
Inventor: CREADEN DAVID E
IPC: B65D85/42
Filed: 1991-02-11
Abstract: ABSTRACT OF THE DISCLOSURE           An improved synthetic resin dunnage element (10) for use in packaging and shipping of fluorescent tubes (76,78) is provided which is specifically designed to be of minimum fore and aft length while still providing maximum protection against tube breakage. The support (10) is of integral, thermoformed construction and advantageously includes alternating upwardly and downwardly opening and diverging wall sections (68,70,70a) with the forwardmost downwardly opening section (70a) being of lesser width, greater radius and vertically lower in position than the associated rearward sections (70). In this fashion the forwardmost sections (70a) engage the fluorescent tube end caps (82) whereas the sections 70 engage the glass tube body. Provision of such specialized, different downwardly opening wall sections (70,70a) allows the support (10) to be manufactured using substantially less starting sheet material as compared with prior supports.            (Docket No. 20468
Patent CA-2036731-A1 (CA)
Inventor: RAU KARL-MARTIN
IPC: C01B25/32
Filed: 1991-02-20
Abstract: The present invention provides a process for the production of granulated dicalcium phosphate dihydrate from fine-grained, powdered dicalcium phosphate dihydrate, wherein 80 to 95% of dicalcium phosphate dihydrate with a grain size of less than 120 µm. and 20 to 5% of calcium hydroxide with a grain size of less than 120 m. are dry mixed and continuously sprayed and granulated in a fluidised bed with 20 to 50% of water, referred to the amount of solids, in which is contained an amount of phosphoric acid sufficient for the neutralisation of the calcium hydroxide, the granulate obtained is dried at a temperature of 150 to 200°C. and the portions of coarse and fine grained material are optionally sieved off.
Patent CA-2038961-A1 (CA)
Title: Fluoroacrylic polymer having lubricating effect and thermoplastic resin composition comprising same
Inventor: TOYOOKA YUTAKA
IPC: C08F220/22
Filed: 1991-03-25
Abstract: FLUOROACRYLIC POLYMER HAVING LUBRICATING EFFECT      AND THERMOPLASTIC RESIN COMPOSITION           COMPRISING SAME                 ABSTRACT OF THE DISCLOSURE      A fluoroacrylic polymer having a lubricating effect, which comprises at least one kind selected from units derived from a fluoroalkyl acrylate and units derived from a fluoroalkyl methacrylate as a part or all of structural units and a reducing viscosity ?Sp/C not higher than 2 as measured at 25°C with respect to a solution of 0.1 g of the polymer in 100 ml of chloroform.  The fluoroacrylic polymer is incorporated into a thermoplastic resin for rendering an excellent lubricating property thereto.
Patent CA-2039062-A1 (CA)
Inventor: BLAKE BRUCE M
IPC: H04Q3/00
Filed: 1991-03-26
Abstract: A computer is provided with a network planning facility, which displays in map form a network comprising a plurality of nodes each serving a plurality of subtending nodes, and in which the network is characterized by data stored in the computer. The operation of the planning facility is initiated in response to a user entering an appropriate command.  Specifically, responsive to the command, the computer displays a plurality of symbols representing respective ones of the nodes, in which each such symbol is arranged so that it is indicative of the number of traffic terminations at it's associated node. The user may then select, in a conventional manner, one of the displayed symbols and then invoke either an automatic mode or a manual mode. In the automatic mode, the computer itself develops a plan for rehoming to another network node individual ones of the subtending nodes associated with the selected node, in which the rehomed subtending nodes are selected based on their having a predetermined traffic relationship with the other node. In the manual mode, it is the user, rather than the computer, which develops the rehoming plan.
Patent CA-2040638-A1 (CA)
Title: Barrier materials useful for packaging
Inventor: DEAK GEDEON I
IPC: B65D65/40
Filed: 1991-04-17
Abstract: TITLE              FILM COATED WITH GLASS BARRIER LAYER           WITH METAL DOPANT                            ABSTRACT                   Improvements to silicon oxide coatings on polymeric substrates are disclosed, which provide improved barrier properties.  One improvement involves doping an SiO2 coating with one or more of certain metals.  Another improvement involves first, forming an SiO coating on the substrate, followed by an SiO2 coating.  Another improvement involves the combination of the SiO/SiO2 coatings plus the incorporation of certain metal dopant into the SiO2 layer.
Patent CA-2042387-A1 (CA)
Title: Levitation undercarriage with servomotor driven air gap regulation
Inventor: QUAAS HANS-RAINER
IPC: B60L13/10
Filed: 1990-09-21
Abstract: Levitation Undercarriage With Servomotor Driven Air Gap Regulation For the Magley Train System (Magnetic Levitation Train system) Abstract The levitation undercarriage for a magnetic levitation train whose supporting and driving forces are generated by way of a long stator on the track and permanent magnets on the vehicle (magnetic levitation train system) is given such a configuration that, instead of a purely mechanical air gap regulation to regulate the load dissipation of the vehicle, this regulation is effected by means of electric or hydraulic servomotors.
Patent CA-2042949-A1 (CA)
Inventor: YOSHIHARA SATOSHI
IPC: G02F1/1341
Filed: 1991-05-21
Abstract: A liquid crystal contained in a liquid crystal reservoir is applied to an injection port of a blank liquid crystal panel in a vacuum chamber, and the vacuum chamber is restored to the atmospheric pressure to inject the applied liquid crystal into the liquid crystal panel through the injection port.  Herein, the liquid crystal, particularly a ferroelectric liquid crystal having a high viscosity, is effectively used for filling the liquid crystal panel with a minimum loss by using a transfer member moving between the liquid crystal reservoir and the liquid crystal panel.
Patent CA-2043825-A1 (CA)
Title: Method of detecting explosives and other substances in samples of ground material
Inventor: DANYLEWYCH-MAY LUDMILA L
IPC: G01N1/22
Filed: 1991-06-04
Abstract: ABSTRACT OF THE DISCLOSURE           A  method  of  detecting  the  presence  of substances, such as explosives, environmental pollutants, hydrocarbons and organic materials, in a sample of ground material comprised of soil, a micro layer of soil, liquid, or a combination thereof is presented. The method involves the  collecting  of  a  discrete  sample  of  such  ground material from an area that may contain said substances and depositing  the  sample on  a  teflon  filter  or  other collection medium. The filter is then placed in a sample holding  unit  adjacent  an  inlet  to  an  ion  mobility spectrometer  (IMS)  or  other  suitable  instrument  for detecting the substances. The sample holding unit is then heated, typically to a temperature of about 180 degrees C or higher, to vaporize matter from the collected sample atop the filter. The vaporized matter is then entrained in a flow of gas which passes said matter into the IMS, thereby to analyze the vaporized matter and determine the presence of said substances.
Patent CA-2044487-A1 (CA)
Title: Lookaside cache
Inventor: TULLIS MICHAEL E
IPC: G06F12/0884
Filed: 1991-06-13
Abstract: LOOKASIDE CACHE                       Abstract A "lookaside" cache architecture whereby the cache system is situated on the processor bus in parallel with the memory controller.  This design enables the cache system and the memory controller to begin servicing a processor memory read request simultaneously, thereby removing any delay penalty for cache misses that would otherwise occur in a traditional look-through design.  The cache and the memory controller both begin a processor memory read cycle simultaneously.  If a cache miss occurs, the memory controller completes the cycle.  If a cache hit occurs, the cache system aborts the memory controller and completes the memory read cycles in zero wait states.  The lookaside cache design allows the cache system to be easily removable from the computer system to provide an optional capability.
Patent CA-2045576-A1 (CA)
Title: Self cleaning screen
Inventor: FRIESEN DAVID
IPC: F01P11/12
Filed: 1990-12-11
Abstract: A self cleaning screen particularly for an engine cooling system comprises a housing (10) having a screen front wall (15) and a rear wall in which there is provided a circular opening (16). The housing is divided by divider plates (17) connecting between the front and rear walls and extending outwardly from the circular opening (16) to outer side edges (11, 12, 13, 14) of the housing. A  baffle (20) is mounted at the centre of the opening and is rotatable by a fin (30) or an electric motor (31). The baffle includes a triangular front plate for closing off a part of the screen aligned with the opening together with a side plate portion (23) which closes off the area defined between the divider plates. As the baffle rotates, therefore a portion of the screen extending radially from the centre of the opening to the side edge is closed off so that air does not flow through that area allowing filter debris to fall from the screen.
Patent CA-2047106-A1 (CA)
Title: Powder charge operated setting tool (apparatus)
Inventor: JOCHUM PETER
IPC: B25C1/10
Filed: 1991-07-16
Abstract: A powder charge operated setting tool includes a barrel (5) and a closing or breech member (8), both axially displaceable in a housing 1.  Tensioning of a tension spring (18) for a firing pin (17) is made possible by means of a disengageable snap-in element 12 acting between housing 1 and closing member 8 by pressing the barrel 5 against the receiving material.  The disengagement of the snap-in element 12 occurs only by overcoming a predetermined force acting counter to the setting direction which is generated by the gas pressure after a propellant charge 19 has been ignited.
Patent CA-2047426-A1 (CA)
Title: Product defect detection using thermal ratio analysis
Inventor: COX ELDON E JR
IPC: H01L21/66
Filed: 1991-07-19
Abstract: ABSTRACT OF THE DISCLOSURE    A method and apparatus for indicating defects in manufactured products employs, instead of the conventional thermal image subtraction, "thermal ratio analysis", which involves ratios of thermal data and their analysis including statistical analysis. Various techniques for "image" enhancement and for suppression of known artifacts are employed to facilitate the decision as to when a defect is detected.  The thermal ratio analysis technique is particularly useful for detecting hidden defects in electronic circuitry, such as integrated circuits.
Patent CA-2047795-A1 (CA)
Title: Fluid dispenser
Inventor: SEIFERT ROBERT P
IPC: B65D77/30
Filed: 1991-07-24
Abstract: ABSTRACT        A flexible fluid dispenser includes a flexible fluid-containing vessel which has a seal which seals a top wall of the vessel to a bottom wall and is shaped to concentrate in a region thereof forces resulting from pressure generated by applying a force to the dispenser.  The dispenser further includes a shield shaped to direct fluid released from the dispenser in a desired direction.  When a sufficiently large force is applied to the dispenser, the weaker top or bottom wall of the vessel ruptures, or opens, at the concentration region of the seal.  The released fluid is then directed by the shield in the desired direction.
Patent CA-2049071-A1 (CA)
Title: Dermatological external agent
Inventor: UEHARA KEIICHI
IPC: A61Q15/00
Filed: 1991-01-18
Abstract: ABSTRACT      A dermatological external agent such as a pharma-ceutical, quasi-drug, or cosmetic comprising tetrahydro-abietic acid, a salt thereof, and hydrogenated rosin and a salt thereof, formulated therein, has an excellent antibacterial. action, is not harmful to the human body, and has an excellent stability.
Patent CA-2055521-A1 (CA)
Title: Method and filter for removing nitrogen oxides and organic chlorine compounds from combustion waste gas
Inventor: HIRAOKA MASAKATSU
IPC: B01J37/02
Filed: 1991-11-14
Abstract: ABSTRACT OF THE DISCLOSURE         A method for removing nitrogen oxides and organic chlorine compounds from a combustion waste gas, which comprises the steps of: adding ammonia (NH3) as a reducing agent to a combustion waste gas containing nitrogen oxides and organic chlorine compounds; causing the combustion waste gas added with ammonia to contact with, while keeping the temperature of the combustion waste gas within a prescribed range, with a catalyst comprising at least one selected from the group consisting of platinum (Pt), palladium (Pd), ruthenium (Ru), manganese (Mn), copper (Cu), chromium (Cr) and iron (Fe) and oxides thereof, supported on the surface of a carrier comprising at least one selected from the group consisting of titanium oxide (TiO2), silicon oxide (SiO2), aluminum oxide (Al2O3) and zirconium oxide (ZrO2), thereby removing nitrogen oxides and organic chlorine compounds from the combustion waste gas.