baber/WOPTO huggingface dataset:
Patent CA-2030680-A1 (CA)
Title: Disposable petri dish with reinforcement ribs
Inventor: HALL DAVID
IPC: B01L3/00
Filed: 1990-11-27
Abstract: ABSTRACT A Petri dish is disclosed in which the flat bottom is provided with a plurality of preferably radial ribs. The upwardly projecting portions of the ribs do not project more than about 0.050 inches above the upper surface of the bottom. Preferably, the ribs do not project more than about 0.030 inches above the upper surface of the bottom. The thickness of the bottom portion other than at the ribs is not greater than about 0.030 inches. Preferably, this thickness is not greater than about 0.025 inches. In the preferred embodiment, there are at least three radial ribs. Preferably, there are four ribs which are spaced 90 degrees from each other. A lid having the same basic structure may also be produced. The ribs need not necessarily be radial, nor need they necessarily be straight, but could be curved. Also, the ribs need not necessarily be continuous nor need they necessarily run all the way from the centre to the side wall or from side wall to side wall. The ribs could project downwardly instead of or in addition to upwardly. Generally, any suitable rib layout could be selected. A large number of ribs could be provided, if desired, though this is not a requirement.
Patent CA-2031245-A1 (CA)
Inventor: CHABARDES PIERRE
IPC: C07C43/313
Filed: 1990-11-30
Abstract: BREVET D'INVENTION PROCEDE DE PREPARATION D'HALOGENOACETALS A PARTIR D'ENAMINES RHONE-POULENC SANTE La présente invention concerne un nouveau composé de formule (IV) son procédé de préparation à partir d'halogénoacétals (IV) d'aldéhydes éthyléniques par réaction avec le triéthylphosphate, et son utilisation pour la préparation du rétinal par réaction avec le .beta.-ionylidène acétaldéhyde.
Patent CA-2031293-A1 (CA)
Inventor: EASTERLE MARK A
IPC: B29C67/20
Filed: 1990-11-30
Abstract: A method of substantially completely filling elongated channels with foam, such as the channels in an extruded lineal used by the window industry. The method includes first orienting the channel in an upwardly angled orientation preferably greater than 30 degrees and less than 90 degrees, with a preferred angle of about 60 degrees. where the channel has open ends, the lower end may be temporarily sealed. A thin, relatively high-pressure high-velocity stream of liquid foamable resin is then directed into the elongated channel open end generally parallel to the inside walls, such that the high-pressure liquid stream is carried at least partially down the length of the elongated channel, prior to contacting the channel inside walls and creaming. The liquid foamable resin then rises upwardly through the elongated channel, substantially completely filling the channel with resin foam.
Patent CA-2031368-A1 (CA)
Title: Composition comprising non-steroidal non-inflammatory agent and effectively non-antibacterial tetracycline
Inventor: GOLUB LORNE M
IPC: A61P3/00
Filed: 1990-12-03
Abstract: A method for treating mammals suffering from rheumatoid arthritis and other tissue-destructive (chronic inflammatory or other) conditions associated with excess metalloproteinase activity comprising administering to the mammal an amount of a tetracycline that is effectively anti-metalloproteinase, but that is not effectively antimicrobial, and an amount of non-steroidal anti-inflammatory agent which, when combined with the effectively anti-metalloproteinase amount of tetracycline, results in a significant reduction of tissue destruction and/or bone loss.
Patent CA-2031543-A1 (CA)
IPC: B60J10/82
Filed: 1990-12-05
Abstract: A  rigid  lid  with  edge gap seal for an automobile roof, which  may  be  constructed  either as a glass lid or as a sheet  metal  lid,  comprising an edge gap sealing profile to  be  fixed  directly  to  the  lid  for  the purpose of compensating   dimensional  variations  of  the  edge  gap between  automobile roof and lid, into which profile a gap compensating   element, permanently  deformable  in  the transverse   direction,   is   moulded   in.    The  gap compensating  element  is  formed  of  a  downwardly  open U-profile,  the  inner  flange  of  which  is  constructed non-deformable  and  is held to the outer periphery of the lid,  and  the  outer  flange of which is flexible for the purpose of dimensional change.
Patent CA-2031917-A1 (CA)
Title: Photoelectric mensuration device and method for determining pdc cutter wear
Inventor: FISCHER JOHN G
IPC: G01B11/02
Filed: 1990-12-10
Abstract: PHOTOELECTRIC MENSURATION DEVICE AND METHOD       FOR DETERMINING PDC CUTTER WEAR     ABSTRACT OF THE DISCLOSURE    A method and apparatus for determining the amount of material removed from an irregularly shaped object is disclosed and includes a light source, a photocell positioned to receive light from the light source, the photocell having a shape which accommodates the profile of the irregularly shaped object before any material is removed and a current-measuring read-out device operatively connected to the photocell to provide an indication of the current output of the photocell.  The current-measuring read-out device displays a reading indicative of the amount of material removed from the irregularly shaped object when the irregularly shaped object, with the material missing therefrom, is placed in position against the photocell so the light from the light source strikes the photocell where the material is missing.  A method is also disclosed for measuring the surface area of a substantially flat, irregularly shaped object.
Patent CA-2034074-A1 (CA)
Title: Air doctor
Inventor: KOSKINEN JUKKA
IPC: D21H25/16
Filed: 1991-01-11
Abstract: (57) ABSTRACT OF THE DISCLOSURE            This publication discloses a rotatable air doctor. According to the invention a body (1) encloses an air channel (2) of the air doctor, said air channel (2) exiting via nozzle air ducts (4) to nozzles (3). The nozzle air ducts (4) are provided with cut-off means (5, 7) with which the air flow from the air channel (2) via the nozzle air ducts (4) to the nozzles (3) can be shut off. During the use of the air doctor, the air flow to the nozzle (3) being used for doctoring is shut off with the help of the cut-off means (5, 7) and the air doctor is rotated by 180° about its longitudinal axis, whereby a clean nozzle (3) can be oriented toward the web. The cut-off in the nozzle air duct (4) of this nozzle (3) is released, whereby the nozzle (3) of the blocked duct (4) can be cleaned.            (Figure 1)
Patent CA-2035815-A1 (CA)
Inventor: KONDO TERUHISA
IPC: C25C7/02
Filed: 1991-02-06
Abstract: A carbon electrode is disclosed comprising a porous carbon block and having a flexural strength of at least 50 MPa and exhibiting, on a linear sweep voltammogram obtained by subjecting the carbon electrode to potential sweep in concentrated sulfuric acid at 25 C, a peak having a maxi-mum current density at a potential of at least 1.2 V. This carbon electrode is substantially free from the danger of destruction and the danger of local breakage and partial coming-off and can advantageously be used as an anode not only for stably conducting the electrolysis of an HF-con-taining molten salt but also for producing a desired elec-trolysis product with high purity.
Patent CA-2036435-A1 (CA)
Title: Reagent unit
Inventor: ANDERSON PAUL J
IPC: G01N33/52
Filed: 1991-02-15
Abstract: REAGENT UNIT               ABSTRACT OF THE DISCLOSURE A disposable reagent unit including a base strip with a plurality of spaced holes, a double face tape, a reagent and a lot identification  paper in a side-by-side adjacent relationship, a wick, and a cover strip with a hole for engagement with a diagnostic instrument quantitative of an analyte in a liquid such as glucose in blood.   Blood is deposited in the blood bowl and is wicked to the reagent for subsequent color change other detectable  change  to  be  measured  by a  diagnostic instrument.   The color intensify of the reagent  is proportional  to the analyte such as glucose in the blood.
Patent CA-2041877-A1 (CA)
Inventor: THOMAS SAMUEL J
IPC: B21C37/08
Filed: 1991-05-06
Abstract: Abstract A pipe weld cover apparatus  comprising a sensor and an associated resin dispenser wherein the sensor locate  a weld, transmits the  information  to  the  dispenser  and actuates  the dispenser to dispense a resin onto the weld so as to flatten the weld projection thereby allowing for uniform and uninterrupted surface contact with a later applied tape coating system.
Patent CA-2043873-A1 (CA)
Title: Process for the manufacture of granulated sulphur nutrient and the product thereof
Inventor: LEE RAYMOND C
IPC: C05D11/00
Filed: 1991-06-04
Abstract: PROCESS FOR THE MANUFACTURE OF GRANULATED         SULPHUR NUTRIENT AND THE PROD CT THEREOF                 ABSTRACT OF THE DISCLOSURE      A process for the manufacture of granulated sulphur nutrient composed of particles of a size of 200 U.S. mesh or smaller, including the steps of comminuting, mixing, granulating and drying comprising comminuting elemental sulphur or elemental sulphur and sulphate containing compounds to 200 U.S. mesh or smaller, mixing the individual comminuted sulphur particles with a binder dispersant, granulating the binder retaining sulphur particles into granules, drying the resulting granules to set the binder dispersant.
Patent CA-2044034-A1 (CA)
Inventor: WU SHIH-FU
IPC: A45C13/20
Filed: 1991-06-06
Abstract: A multi-function wallet comprising a leather cover, at least  two strips,  a sub-wallet, a  plurality  of  notebook papers, a string, a bead chain, a hook and a fastening  hook; the string is to pass through holes on the leather cover, the strips, and the sub-wallet so as to fasten all the  aforesaid parts  into one piece; both ends of the string  are  fastened the hook and the bead chain together. The fastening hooks  is fixedly connected with the bead chain. The strips mounted  on the  leather cover and the sub-wallet are used  for  clamping banknotes and notebook papers respectively. The inner side of the  leather cover has a large pocket for storing ID card  or the  like; the inner side of the inner leather sheet  of  the sub-wallet has a partition flap and a lid flap; the partition flap can be opened partially, and used for storing ID card or the  like. The inner side of another inner leather sheet  has several  coin  pockets for  storing  different  coins.   The fastening  hook is used to attach the wallet on user's  waist belt; the hook is to be hooked on waist belt for showing  the bead chain as a decorative article.
Patent CA-2044456-A1 (CA)
Title: Synthesis of tagged polymers by post-polymerization (trans) amidation reaction
Inventor: FONG DODD W
IPC: C08F8/34
Filed: 1991-06-12
Abstract: Abstract of the Invention Polymers tagged with pendant fluorescent groups are prepared by the (trans)amidation derivatization of pre-existing polymers having carbonyl-type pendant groups.  Polymers having pendant amide groups wherein the amide nitrogen is substituted with fluorescent moieties, prepared by (trans)amidation derivatization, are provided.  Polymers having pendant (sulfonated) napthalene moieties substituted to amide nitrogen are provided.
Patent CA-2045371-A1 (CA)
IPC: F02C3/22
Filed: 1991-06-25
Abstract: ABSTRACT      An integrated cryogenic air separation unit power cycle system is disclosed wherein the air separation unit (ASU) is operated at elevated pressure to produce moderate pressure nitrogen.  The integrated cycle combines a gasification section wherein a carbon source, e.g., coal is converted to fuel and combusted in a combustion zone.  The combustion gases are supplemented with nitrogen from the air separation unit and expanded in a turbine.  Air to the cryogenic air separation unit is supplied via a compressor independent of the compressor used to supply air to the combustion zone used for combusting the fuel gas generated in the gasifier system.
Patent CA-2048314-A1 (CA)
Inventor: MEUCCI VICTORIA P
IPC: G01N33/539
Filed: 1991-08-01
Abstract: ABSTRACT OF THE DISCLOSURE      A precipitation reagent for use in analytical systems for the determination of hydrophobic analytes in a biological test sample, particularly analytical systems employing specific binding proteins for  such  analytes.    The  precipitation  reagent  precipitates interfering proteins, hemoglobin, and other interfering substances from a biological test sample while,  at the same, maintaining hydrophobic analytes in solution and minimizing the denaturation of specific binding proteins, such as, for example, antibodies, which may be present in an immunoassay system.  The precipitation reagent comprises a zinc salt, a glycol, and a straight or branced alcohol from about 1 to 4 carbon atoms, and may optionally contain an acid.          A preferred precipitation reagent comprises zinc sulfate, methanol and ethylene glycol, and is particularly useful in a fluorescent polarization  immunoassay  for  the  determination  of  hydrophobic analytes, especially cyclosporine.
Patent CA-2048664-A1 (CA)
Title: Dispositif d'evacuation par aspiration
Inventor: HOFSETH OLAV
IPC: E03F1/00
Filed: 1990-03-02
Abstract: Le système de drainage sous vide décrit, qui est conçu pour des équipements sanitaires tels que toilettes, urinoirs et éviers, etc., comprend des tuyaux d'embranchement raccordés à l'équipement sanitaire et débouchant dans un tuyau collecteur (5), ainsi que, raccordé au tuyau collecteur (5), un dispositif de vide (2) servant à produire le vide dans les tuyaux et à transporter les eaux usées depuis l'équipement sanitaire par exemple jusqu'à un réservoir collecteur (1) ou une station d'épuration. Le dispositif de vide comprend une ou éventuellement plusieurs pompes à vis (2) qui sont pourvues d'un pulvérisateur ou dispositif de broyage, servant à broyer les particules solides contenues dans les eaux usées et qui sont raccordées directement au tuyau collecteur (5).
Patent CA-2050878-A1 (CA)
Inventor: MOLNAR GERALD
IPC: H03F3/45
Filed: 1991-09-06
Abstract: A power amplifier comprises an input stage having a fully differential amplifier with differential inputs and differential outputs, and a high impedance closed loop common. mode feedback control circuit deriving common mode feedback control signals from said differential outputs; and an output stage comprising for each differential output of the input stage a class AB amplifier having source followers interfacing with said folded cascode amplifier. A common mode output voltage control circuit maintains the common mode output voltage of the class AB amplifiers at a desired level, and a quiescent current regulator comprising a circuit for mimicking the behaviour of one of the source followers to derives a control signal for maintaining the quiescent current of the output transistors at a desired value.
Patent CA-2051633-A1 (CA)
Title: Optical fiber tap handling tray
Inventor: TAKAKI DANA M
IPC: G02B6/42
Filed: 1990-04-26
Abstract: PATENT                         ABSTRACT       An optical fiber waveguide tap handling tray is provided for use with a cable containing a plurality of optical fiber waveguides which are separated from the cable and exposed in a section thereof. The tap handling tray comprises a frame, a clamp for clamping the cable to the frame adjacent the section thereof so that the exposed optical fiber waveguides are thereupon physically secured to and contained within the frame, at least one optical tap secured to the frame for engaging and bending at least one of the plurality of optical fiber waveguides against an optical coupling medium having an index of refraction selected to match the index of refraction of the optical fiber so that light energy may pass through a side of the optical fiber and through the optical coupling medium, and wherein the optical tap defines an obtuse guiding angle arranged to lie in a path with which the fiber may freely be aligned within the frame after the cable has been clamped thereto. Taps having differing obtuse guiding angles may be selectively installed by the craftsman within the tray in order  to select a  desired amount of light energy interchange at the tap field location.
Patent CA-2057513-A1 (CA)
Title: Device and method for real-time monitoring of accidental damage to the protective covering of underground or immersed metal structures or pipelines
Inventor: RIVOLA LUIGI
IPC: G01V3/11
Filed: 1991-12-12
Abstract: A method for monitoring damage to the protective covering of immersed or underground metal structures subjected to cathodic protection, based on the electrical resistance offered by the covering, and consisting of modulating the cathodic protection feed current and measuring the corresponding potential variation due to the ohmic loss, the resistance being obtained from the ratio of potential variation to modulation current, to activate an alarm system on sudden fall and rise in ohmic resistance due to accidental events.
Patent CA-2057752-A1 (CA)
Title: Data preservation method
Inventor: BRAUNER INGOLF
IPC: G11B27/00
Filed: 1991-12-16
Abstract: Abstract A method for preserving data is described which are stored on a magnetically coated carrier.  During the original recording of data storage capacity is reserved.  In every read mode the stored data are checked and evaluated and in the case, that a predetermined raw error rate is exceeded, then the data are re-stored in an available, left-free area.
Patent CA-2058759-A1 (CA)
Inventor: CEROLA JOSEPH J
IPC: A61L12/12
Filed: 1990-06-07
Abstract: Apparatus is provided for use in the sterilization of contact lenses or the like, wherein lenses are disposed within a sterilizing solution (32) contained within a reaction vessel (22), which sterilizing solution (32) is capable of being decomposed through contact with a catalytic agent (62). The apparatus comprises a reaction vessel (22) capable of containing a sterilizing solution (32) and comprising a container portion (22), a cover (30) and structure (40) for supporting an article in contact with sterilizing solution (32) in the container (22). Further structure is provided for mounting a catalytic agent (62) on the supporting means (40) such that the catalytic agent (62) is removable for replacement by a user as the catalytic agent (62) becomes exhausted in use. The mounting of the catalytic agent (62) on the article supporting structure (40) prevents contact of the catalytic agent (62) with the solution (32) in the container (22) until the article supporting structure (40) with the contact lenses (52) therein is placed in the solution (32) in the container (22) for beginning the sterilizing process, to thereby prevent premature breakdown of the sterilizing solution (32) prior to the introduction of contact lenses (52) for sterilization therein.
Patent CA-2060851-A1 (CA)
Title: Method of providing a dimensionally-stable, closed-cell polyolefin foam having reduced blowing agent content to the end user
Inventor: MALONE BRUCE A
IPC: B29C48/345
Filed: 1992-02-07
Abstract: ABSTRACT OF THE DISCLOSURE       Disclosed is a method of providing closed-cell polyolefin foam having reduced blowing agent content to an end user comprising (a) extruding the polyolefin to form the essentially continuous foam structure defining a multiplicity of channels extending generally longitudinally therethrough; (b) intermittently crimping the essentially continuous foam structure such that the channels extending therethrough are intermittently substantially closed off; (c) intermittently severing the essentially continuous, intermittently crimped foam structure at the crimps therein to form discrete foam structure portions having crimped end portions; (d) cooling the crimped, discrete foam structure portions to an extent sufficient to prevent substantial shrinkage of the crimped, discrete foam structure portions upon initiation of release of the flammable blowing agent from the foam; (e) excising the crimped end portions from the remainder of the crimped, discrete foam structure portions to initiate release of the flammable blowing agent and form uncrimped, discrete foam structure portions; and (f) providing the uncrimped, discrete foam structure portions to the end user.     39,124-F
Patent CA-2063166-A1 (CA)
Title: Anti-splitting device
Inventor: HIGGINS JAMES A
IPC: B25D1/00
Filed: 1992-03-17
Abstract: ANTI-SPLITTING DEVICE                        ABSTRACT A generally I-shaped, plastic anti-splitting device is provided with projections serving to removably attach the device to a driver, such as a manually operated hammer.
Patent CA-2063583-A1 (CA)
Title: Tracheal tube assemblies
Inventor: INGLIS TIMOTHY J J
IPC: A61M16/04
Filed: 1991-02-15
Abstract: A tracheal tube assembly has an outer tube (1) and an inner cannula (2) with a patient end (22) that is flared outwardly to a diameter greater than the internal diameter of the outer tube. When inserted in the outer tube, the patient end of the inner cannula is deformed inwardly and forms a wiping seal. The remainder of the inner cannula (2) has an external diameter less than the internal diameter of the outer tube (1) so that it is readily inserted.  The inner cannula may be coextruded with an outer layer (20) of a low friction material such as a polyolefine.
Patent CA-2065103-A1 (CA)
Inventor: HALL JAMES E
IPC: C08F36/04
Filed: 1992-04-03
Abstract: A method for preparing a diene polymer or copolymer having increased amounts of 1,2-microstructure is provided.  The method involves polymerizing a diene monomer or mixture of a diene monomer and a vinyl aromatic hydrocarbon monomer in a hydrocarbon solvent in the presence of a catalytically effective amount of a catalyst composition comprising: (a) an organolithium initiator and (b) an oxolanyl cyclic acetal having the structural formula:       wherein R is selected from the group consisting of hydrogen and alkyl groups containing from 1 to 4 carbon atoms and X is 0 or 1.
Patent CA-2065235-A1 (CA)
Title: Roadway
Inventor: LESLEY LEWIS
IPC: E01B7/28
Filed: 1990-08-28
Abstract: A rail for vehicles to travel on is supported from a surface (14) by flanges (17) extending transversely from the top of the rail (11). The rail has a groove (16) for the road wheels. The rail is recessed into the road surface in a relatively shallow recess (12). The rail has a low profile since the loading on the rail is taken on the surface and is not carried down as usual to a substrate for the surface.
Patent CA-2065544-A1 (CA)
IPC: F16H3/091
Filed: 1992-04-07
Abstract: A sixteen forward speed, four reverse speed transmission is provided having a very high efficiency and excellent shift quality.  The gear ratios are selected so that a relatively large ratio spacing is provided between each gear step in the low-speed PTO usage range and in the high-speed transport usage range, while a much smaller gear ratio spacing is provided in the intermediate tillage or field usage range. The gear ratios are selected to minimize the number of clutches being changed to shift from one gear to the next, with minimal speed and momentum differences required inside the transmission during each shift.  Just two shifts have a large ratio change, and they are positioned in locations having minimal usage, thereby minimizing operator awareness of these gear ratio spacings.  The total number of meshes through the transmission is minimized to provide maximum efficiency.
Patent CA-2065747-A1 (CA)
Title: Electrochrome system
Inventor: CHU WING F
IPC: G02F1/1523
Filed: 1992-04-10
Abstract: ABSTRACT            An electrochromic system in the form of a solid-body film arrangement that works in an atmosphere that can be dry, on a substrate with an Li+ ion conductive film, which preferably consists of Li3AlF6, and an improved backplate electrode film that can emit and absorb ions from the ion conductor reversibly, and which remains largely transparent when so doing, and which is preferably of LixTioy, (Li2o)? (W°3)n (Sb203)o, or (LiO2 )?  (WO3) n (CeO2) O.