baber/WOPTO huggingface dataset:
Patent CA-2020125-A1 (CA)
Title: Procede de moulage d'un pneumatique, et moule pour la mise en oeuvre dudit procede
Inventor: LUROIS PATRICK
IPC: B29D30/06
Filed: 1990-06-29
Abstract: Procédé de moulage d'un pneumatique, et moule pour la mise en oeuvre du procédé.   Pour assurer la régularité géométrique d'un pneumatique moulé avec un moule à segments, lorsque  la  sculpture du pneumatique comporte des blocs entourés d'évidements constitués par des rainures et des incisions, on amincit les rainures au niveau des plans de joints entre segments.   En outre, on dispose des témoins d'usure  au niveau des joints entre segments.
Patent CA-2020949-A1 (CA)
Title: Wastewater treatment process with an ozone contactor
Inventor: HALLETT RONALD C
IPC: C02F1/32
Filed: 1990-07-11
Abstract: RBP File No. 3300-55 ABSTRACT OF THE DISCLOSURE     During   the    oxidation   or photooxidation   of   contaminants   in wastewater, a gaseous oxidizing   agent is introduced into a wastewater stream.          The mixed stream is passed through  a liquid  ring  compressor  prior  to  its entry into a reactor.  In an alternate embodiment, the oxidizing agent and the wastewater are each introduced into the liquid ring compressor.
Patent CA-2021111-A1 (CA)
Title: Apparatus and method for tool break and wear detection
Inventor: THOMAS CHARLES E
IPC: B23Q17/09
Filed: 1990-07-12
Abstract: RD 17,086 APPARATUS AND METHOD FOR TOOL BREAK AND WEAR DETECTION               ABSTRACT OF THE DISCLOSURE A device for determining cutting tool wear and breakage has an accelerometer for sensing tool vibrations. Functions of the AC and DC power of the vibration signal, such as the powers themselves or the square root of the powers, are computed and compared.  If the relationship between the AC and DC power changes beyond selected limits, an alarm is sounded or flashed.  A method for determining cutting tool wear and breakage provides a tool vibration signal, computes functions of the AC and DC power of the vibration signal, and compares the AC and DC power signals.
Patent CA-2021362-A1 (CA)
Inventor: GREEN DAVID T
IPC: A61B17/128
Filed: 1990-07-17
Abstract: A  disposable apparatus is disclosed for applying surgical clips to body tissue in endoscopic surgical procedures.  The apparatus includes a  frame which is adapted to be gripped by hand, and an endoscopic section permanently connected to the handle and capable of storing surgical clips in  preparation for clipping arteries or other body tissue.  The apparatus includes means for advancing each clip sequentially to a  pair  of  distal jaws  and  means  for  closing the jaws about the clip.  When the jaws are closed, the clip advancing means is simultaneously positioned  to  advance the   next   clip.   When  all  clips  are  spent  the  apparatus  becomes automatically locked against further advancement of  the  clip  advancing means  as  well  as further closing of the clip closing jaws.  The present apparatus also makes  it  possible  to  partially  close  a  clip  without interfering with the sequential movement of the clip advancing mechanism.
Patent CA-2022045-A1 (CA)
Title: Disposable nursing bag assembly
Inventor: LORD ROBERT
IPC: A61J9/00
Filed: 1990-07-26
Abstract: ABSTRACT OF THE DISCLOSURE    A disposable nursing bag assembly is provided, comprising a bag prefilled with sterilized infant's formula and adapted to be snuggly inserted into a tubular holder of already existing nursing systems like the one sold under the trade-mark PLAYTEX. This bag which is closed to form a storage chamber, has a dispensing end enclosed within a protective bag in order to insure its sterility until it is used. In use, the protective chamber is incised to form two flaps which are folded over the upper edge of the holder so as to overhang from it after insertion of the assembly within the tubular holder. The dispensing end is  incised and a nipple assembly is disposed around and over the folded flap portions such that the nipple portion completely encloses the dispensing end.
Patent CA-2022592-A1 (CA)
Inventor: WILLIAMS DENNIS A
IPC: C09K8/68
Filed: 1990-08-02
Abstract: A  method  of  fracturing  a  subterranean  formation involving the use of crosslinked gels to form a fracture and deposit particulate proppant therein followed by the introduction of dilute aqueous solutions of chlorine dioxide in the propped fracture to degrade the gel.
Patent CA-2023469-A1 (CA)
Title: Passive quadrature phase detection system for coherent fiber optic systems
Inventor: KIM BYOUNG Y
IPC: H04B10/2581
Filed: 1990-08-16
Abstract: PASSIVE QUADRATURE PHASE DETECTION SYSTEM FOR           COHERENT FIBER OPTIC SYSTEMS                 Abstract of the Disclosure A  passive  quadrature  phase  detection  system  for coherent fiber systems includes  first and second optical detectors positioned to receive an output signal from the output end  of  an  optical  signal  apparatus  such  as  an interferometer, or the like.   The optical signal from the apparatus  includes  light  propagating  in  two  propagation modes.  As the light propagates away from the output end of the apparatus from the near field to the far field,  the light in the two modes undergoes a relative phase shift of .pi./2 in accordance with the Guoy effect.  The two detectors are positioned such that the first detector detects the intensity of light resulting from the interference between the two modes in the near field of the output signal, and such that the second detector detects the intensity of light resulting from the interference between the two modes in the far field of the output signal.   The additional .pi./2 phase difference introduced between the two modes as the light propagates from the near field light to the far field causes the detected light intensities to be in phase quadrature. Electrical  signals  (cos  ?,  sin  ?)  proportional  to  the detected light intensities can be processed to determine changes in the phase difference between the two modes within the apparatus.   In preferred embodiments, the detection of the near field light intensity is accomplished at a position optically displaced from the output end of the apparatus.
Patent CA-2023581-A1 (CA)
Title: Lenson panel-stapled gabions and panel-stapled erosion mattresses
Inventor: LENSON WALTER J
IPC: E02D29/02
Filed: 1990-08-17
Abstract: F o r m  24                          2 of 7 ( ss. 21,31,34 and 142 ) A B S T R A C T            Gabion wire baskets have been around for a very long time and have not undergone any changes in design or  installation technique since first introduced into North America over 50 years ago. This product has proven to be very effective as an erosion protection device and now has been widely installed. The life expectancy of gabions is relative to their exposure to the environment.  Our acid rain problem and water pollution minimizes the life of the wire mesh of which they are made; application to shoreline protection on the Great Lakes exposes the wire mesh to abrasion from sand and gravel washing on the wire. In addition, suitable stone for filling the baskets so same will not be lost through mesh openings is increasingly hard to find, hence smaller mesh sizes are required on exposed faces of the baskets. Lastly, maintenance and repair of existing gabion installations is a tedious job at present and requires addressing. Gabion wire baskets are made by very sophisticated, and costly, machines manufactured by Wafios of Germany.          Lenson  Panel-Stapled Gabions addresses the above limitations by being manufactured in panel form from which all sizes of gabions can be constructed.  These panels are fastened together with a pneumatic fastening tool.  Such system reduces cost of manufacture and install-ation and addresses the need for maintenance and repair of existing gabion structures.  Also, where exposure may lead to loss of filling stone, smaller mesh-sized panels can be used to form that face of the basket.          One of the serious problems with erosion protection devices is the scour resulting at the toe of same due to the dissipation of energy from water impact.  The current available erosion mattresses are made in large dimensions for channel lining purposes and river banks ONLY.  Lenson Panel-Stapled Erosion Mattresses addresses this problem as they can be made in all sizes to fit site erosion protection requirements.
Patent CA-2023692-A1 (CA)
Title: Inflow and outflow hepa vent filter for asbestos work areas
Inventor: WEBER JOHN E
IPC: B01D46/10
Filed: 1990-08-21
Abstract: ABSTRACT OF THE DISCLOSURE    A HEPA vent filter device comprising a housing having open-ings in front and back walls, a partition in said housing between said front and back walls positioned at an angle from vertical and defining a framed opening, extensible curtain walls on the exterior of said housing between said front and back walls, a HEPA filter, pivots mounting said HEPA filter for movement toward and away from said framed opening so that air passing through said housing in a first direction moves said HEPA filter away from said framed opening and air passing through said housing in the opposite direction moves said HEPA filter into engagement with said framed opening and a sealing gasket thereon.
Patent CA-2024334-A1 (CA)
Title: Method and equipment for compressing material consisting of particles
Inventor: JONKKA ARVO
IPC: B65G25/06
Filed: 1990-08-30
Abstract: A method and a pressing machine for compressing material (7) consisting of particles so that the material is feeded between press surfaces (1, 1'), whereby the cross-sectional area of the material flow decreases in feeding direction of the material. At least one of the pressing surfaces is formed by parallel transfer elements (1, 1'), like balks, moving back and forth in feeding direction, the larger part of the total pressing surface of which is moving in the feed direction at a time than moving backwards. The speed of return motion of the transfer elements is higher than that of the feed motion.
Patent CA-2026707-A1 (CA)
Title: Chewable spray dried spheroidal microcapsules and wax coated microcapsules and methods for preparing same
Inventor: TAI ANNA W
IPC: A61K9/68
Filed: 1990-10-02
Abstract: CHEWABLE SPRAY DRIED SPHEROIDAL MICROCAPSULES                 AND WAX COATED MICROCAPSULES                AND METHODS FOR PREPARING SAME        ABSTRACT OF THE DISCLOSURE           The present invention pertains to a spray dried spheroidal  microcapsule  under  about  150 microns  in diameter which comprises (a) a medicament present in an amount from about 1% to about 90%,  by weight of the microcapsule  composition,  (b)  a  film  forming  polymer present in an amount  from about 8% to about 90%,  by weight   of   the   microcapsule   composition,   (c)   a plasticizing agent in an amount from about 5% to about 30%, by weight of the film forming polymer   In another embodiment,  the invention is directed at a spheroidal coated microcapsule under about 850 microns in diameter which  comprises  at  least  one  spray  dried  spheroidal microcapsule core under about 150 microns in diameter and a coating layer over the core, wherein the coating layer comprises in percentages by weight of the coating layer composition (a) an edible material having a melting point from about 25° C. to about 100° C. selected  from the group consisting of  (i)  fatty acids having an  iodine value from about 1 to about 10, (ii) natural waxes, (iii) synthetic waxes, and (iv) mixtures thereof, present in an amount from about 80% to about 99.5%, and (b) a surface active agent present in an amount from about 0.5% to about 20%.
Patent CA-2032176-A1 (CA)
Title: Alkylamino- and alkylaminoalkyl diarylketones, a process for their preparation and their use as medicaments
Inventor: HAMER RUSSELL R L
IPC: C07C217/48
Filed: 1990-12-13
Abstract: ABSTRACT   Alkylamino- and alkylaminoalkyl diarylketones, a process for their preparation and their use as medicaments This invention relates to alkylamino and alkyl amino alkyl diarylketones of the formula   where Ar is aryl of the formula  , where V is hydrogen, halogen, loweralkyl, loweralkoxy, CF3, NO2 and u is an integer of 1 to 3; X and Y are independently CH2-, -CF2- or -CHF-; Z and W are independently -CH2, -O-, -CHOH-, or -CHF-; m, n, p, q and t are integers which are independently 0 or 1; R1 is H or loweralkyl; R2 and R3 are loweralkyl; and the pharmaceutically acceptable acid addition salts thereof and where applicable the geometric and optical isomers and racemic mixtures thereof. The compounds of this invention display utility as analgesic agents and as agents for alleviating various memory dysfunctions, characterized by a decreased cholinergic function, such as Alzheimer's disease.
Patent CA-2032378-A1 (CA)
Title: Cigarette and cigarette filter element therefor
Inventor: SAINTSING BARRY L
IPC: A24B15/24
Filed: 1990-12-17
Abstract: RBP File No. 4109-087 ABSTRACT OF THE DISCLOSURE      A cigarette comprises a blend of tobacco materials and a filter element provided from a non-woven thermoplastic material.  The non-woven material comprises polyester or polypropylene fibers.  The non-woven material is in intimate contact with an acidic material (e.g. phosphoric acid) or a basic material (e.g., sodium hydroxide).
Patent CA-2037664-A1 (CA)
Title: Monoclonal antibody against complexed and noncomplexed complexing agents for removing heavy metals from aqueous solutions and for analysis
Inventor: BOBLET KLAUS
IPC: G01N33/84
Filed: 1991-03-06
Abstract: The invention relates to monoclonal antibodies (mAB) which bind to water-soluble complexones such as ethy-lenediamine tetraacetate (EDTA) or diethylenetriamine pentaacetate (DTPA) with high specificity and avidity and retain their high avidity and specificity for these complexones after complexing of EDTA or DTPA with metal ions. These mAB can therefore be used, e.g. coupled on filters or other supports, for removing toxic heavy metals which are complexed with EDTA or DTPA. Further-more, these mAB are suitable as components of immuno-assays (RIA, ELISA etc.) for the quantitative determina-tion of EDTA or DTPA in aqueous solutions.
Patent CA-2037805-A1 (CA)
Inventor: CIARELLI GARY J
IPC: G01F1/075
Filed: 1991-03-08
Abstract: An improved resolution positive displacement flow meter of the type having a pair of meshed gears. A plurality of sensors are spaced to detect movement of the gear teeth as liquid flows through the flow meter. Where the gears each have n teeth and s sensors are used, the possible locations around the gear for each sensor relative to a reference point are determined by the formula     +      where K = 0,1,2,...,(s-1) and L = 0,1,2,...,(n-1). The outputs from the sensors are logically combined, for example, by an exclusive OR circuit or by an OR circuit, to produce s pulses each time the gear rotates through the angle between two adjacent gear teeth.
Patent CA-2039433-A1 (CA)
Title: Bag
Inventor: SACKS MICHAEL
IPC: A45C5/02
Filed: 1991-03-28
Abstract: ABSTRACT                     BAG A bag of similar portable container having a wall or walls surrounding an internal space accessible through an opening (4) in the bag, the wall or walls incorporating of being lined with one or more layers (6) of high tensile strength and high stretch resistance material such as to be capable of resisting penetration by a bullet.  Preferably, a single multi-layer sheet (6) is used to form the wall or walls (3) by folding the sheet at the corners (32), thereby avoiding joins that would be vulnerable to penetration.  Preferably, the penetration resistant material (6) is backed up by one or more layers (11) of an impact absorbing material, such as polycarbonate sheet material and foamed plastics material.  The layers of penetration resistant material (6) and impact absorbing material (11) may be separately formed as removable inserts that are used to line the bag.
Patent CA-2039442-A1 (CA)
Title: Microhardness tester
Inventor: TOBOLSKI EDWARD L
IPC: G02B7/16
Filed: 1991-03-28
Abstract: ABSTRACT OF THE DISCLOSURE           A microhardness tester comprises a turret capable of holding a plurality of load rod assemblies such that, when the optical objective elements mounted on the turret have been properly aligned with respect to the indenter of one load rod assembly desired to impinge upon a specimen to test for microhardness and it subsequently becomes desirable to use a second load rod assembly to change scales for the testing, it is only necessary to properly align the indenter of the second load rod assembly and not the objective elements with the test specimen.  The load rod assembly of the microhardness tester free falls in its testing mode, and a spring is provided for retaining the load rod in a home position spaced away from the test specimen.  Thus, the load weights applied to the load rod as carried to the test specimen are not affected by spring load tolerances such that weight calibration can be completed during the weight manufacturing process.  Likewise, the weight stack constituting the additional load is guided on a vertical shaft impinging on the load rod so as to provide for actual weights without the need for calibrating spring gradients.          The load rod assembly can also be removed from a tester without the necessity of internal disconnection.   A threaded anti-rotation collar provides for easy adjustment of the gap between the load rod assembly indenter and the test specimen.  The microhardness tester also comprises an elevating unit having a sprocket arrangement providing a rapid focus feature for moving a test specimen into the desired fine focus in minimal time.   Still further, a standard dwell time is provided for the tester, with such dwell time factory preset.     7\Wilson\822.2
Patent CA-2041029-A1 (CA)
Title: Cut-to-print quality monitoring in a package producing machine
Inventor: PORRET OLIVIER
IPC: B31B50/00
Filed: 1991-04-23
Abstract: ABSTRACT            The invention  concerns a CAMERA-FLASH unit of the feeder table  (M) of  an  infeed  station  (1)  belonging to a machine converting  sheets  (F) into package. The CAMERA-FLASH unit shoots  an  image  of  the  colour  register  marks  printed previously on every  sheet. The CAMERA-FLASH unit operates jointly with an IMAGE PROCESSING SYSTEM having previously memorized a reference image from a model sheet. Owing to an image  process  comparison  of  the  images  shot  from  the sucessive sheets to the memorized image of the model, it is possible to check whether the quality criteria of the run are fulfilled.
Patent CA-2041471-A1 (CA)
Title: Olefin ethylation process
Inventor: SLAUGH LYNN H
IPC: C07C2/14
Filed: 1991-04-30
Abstract: A process for ethylating olefins having at least one allylic hydrogen atom by contacting one or more of said olefins with ethylene in the presence of an alumina based catalyst which is substantially free of elemental alkali metal.
Patent CA-2042550-A1 (CA)
Title: Procedure for managing the user rights for several software packages on a computer workstation and system for its implementation
Inventor: BARILLIER GILBERT
IPC: G06F21/00
Filed: 1991-05-14
Abstract: ABSTRACT                  Company known as:          TELEMECANIQUE         Procedure for managing the user rights for several software packages on a computer workstation and system for its implementation (Invention of BARILLIER Gilbert, GARDAIRE Gilles, JARAUDIAS Patrice and TOURNIER Yves) A procedure for managing  the  user  rights  for one or more software packages on a computer workstation (1, 10), these  rights  being  contained  in an original key module (CO) intended to interact with the workstation (1, 10) in order to authorize continuity of operation of said software packages.        The method comprises a prior step (I) for creat-ing a work key module (CT) and a backup key module (C8) associated exclusively with the work key module (CT), on the basis of the original key module (CO) and of a first blank key module (CVa), followed by a step for normal operation (II) of the software packages on the work-station (1, 10).        Use in the field of industrial computerization and in particular for protection against the illicit use of software packages.        See Figure 1
Patent CA-2042590-A1 (CA)
Title: Flexible gas salvage containers and process for use
Inventor: GRANT DAVID C H
IPC: F25B45/00
Filed: 1990-07-27
Abstract: 2042590 9102932 PCTABScor01 Process and system for recovering refrigerant from refrigeration systems without substantial contamination of the atmosphere, said system comprising means for removing refrigerant from the system under the vapor pressure of the refrigerant or with aid from a compressor or other pump, conduit means for conveying the refrigerant from the system, and a collapsible bag constructed of a flexible material substantially impermeable to refrigerant and to air, having at least one inlet for introducing refrigerant to be salvaged and sealing means for sealing the inlet on the bag. After filling, the bag may be transported to a recovery system for recovering refrigerant from the bag so that the refrigerant may be purified and recovered for reuse.
Patent CA-2044085-A1 (CA)
Title: Extruded solid plastic sheet and film, method of producing same, and use
Inventor: FUNK KARL
IPC: B29C48/90
Filed: 1991-06-07
Abstract: Extruded, smooth finished solid sheet or film, which may have a thickness < 1 mm, comprised of a thermoplastic plastic (such as polycarbonate) with a glass transition temperature > 50°C, which under conditions of orientation displays optical birefringence, may be manufactured into a flat strip with smooth finished surfaces, to yield a strip which has characteristics as follows: -- optical birefringence path difference less than or equal to 54 nm (single pass); -- low surface roughness; -- low variation in thickness; by extrusion of the plastic in a thermoplastic state, through a slot nozzle; wherein during or after the smoothing of the two surfaces one of the surfaces of the strip is cooled to below the glass transition temperature, while the other surface and the predominant part of the interior region of the strip remain in the thermoplastic state and the strip is cooled to below the glass transition temperature, under conditions which minimize the deforming forces on the surfaces of the extruded strip.
Patent CA-2046456-A1 (CA)
Title: One-component polyurethane or polyurea compositions
Inventor: MARKUSCH PETER H
IPC: C09D175/02
Filed: 1991-07-08
Abstract: Mo3472 ONE-COMPONENT POLYURETHANE OR POLYUREA COMPOSITIONS                    ABSTRACT OF THE DISCLOSURE          The present invention is directed to a one-component polyurethane or polyurea composition which is based on a) a liquid blocked polyisocyanate wherein the isocyanate groups have been blocked with a phenolic blocking agent and b) a solid polyamine which is insoluble in and dispersed throughout the liquid blocked polyisocyanate, wherein the composition may be cured at elevated temperature and also at ambient temperature if the solid polyamine contains nonaromatically bound amino groups.           The present invention is also directed to a process for the preparation of a high molecular weight polymer by heating the one-component composition at elevated temperature or by adding a polar solvent to the coating composition and allowing the composition to cure at ambient temperatures, provided that the solid polyamine contains nonaromatically bound amino groups.          Mo3472