baber/WOPTO huggingface dataset:
Patent CA-2023472-A1 (CA)
Inventor: TEPPO DAVID S
IPC: A47C7/54
Filed: 1990-08-16
Abstract: ARM HEIGHT ADJUSTMENT MECHANISM FOR A CHAIR                 ABSTRACT OF THE DISCLOSURE         An arm height adjustment mechanism for a chair of the type having a pair of laterally spaced, fixed armrest supports.  The mechanism includes first and second armrests slidably mounted on said supports for vertical movement.  A vertical motion translation mechanism interconnects said armrests so that vertical movement of one armrest translates to synchronized, simultaneous vertical movement of the other armrest.
Patent CA-2023752-A1 (CA)
Title: Clay gun for a machine for plugging the tap-holes of a shaft furnace
Inventor: MAILLIET PIERRE
IPC: C21B7/12
Filed: 1990-08-22
Abstract: ABSTRACT          CLAY GUN FOR A MACHINE FOR PLUGGING THE TAP-HOLES                   OF A SHAFT FURNACE       The gun comprises a hydraulic jack for actuating a piston (16) sliding in a clay chamber (12) fixed in the extension of the jack. The piston (16) is provided with one or more closed annular peripheral  segments  (18) having a flat cross-section and whose axial length is considerably greater than the radial thickness.         Figure 1.
Patent CA-2025679-A1 (CA)
Title: Debris net/scaffolding frame lifting system
Inventor: DUNCAN CHARLES W
IPC: B66F11/00
Filed: 1990-09-19
Abstract: ABSTRACT OF THE DISCLOSURE    A perimeter debris net lifting system employs a plurality of lifting units which support a debris net for a high rise-type construction structure.  The lifting units comprise a pair of frame assemblies which are slidably coupled and essentially scale the structure to raise the debris net as construction progresses.  Each of the frame assemblies are independently mountable to two floors of the structure.  Each lifting unit is vertically displaced by disengaging one of the frame assemblies from its mounting engagement and lifting the frame assembly while the other frame assembly remains securely fixed to the structure. The debris net remains fully extended and functional during the vertical lifting process.  The lifting units may also mount one or more scaffolding frames and a vertical debris net.
Patent CA-2028881-A1 (CA)
Title: Raisable curtain door
Inventor: KRAEUTLER BERNARD
IPC: E06B9/62
Filed: 1990-10-30
Abstract: A B S T R A C T      A handling door including a raisable curtain that is raisable by being wound up, the door comprising a frame constituted by two vertical side uprights interconnected at their tops by a horizontal crossbar carried by said uprights, said crossbar housing a curtain wind-up soft, the uprights constituting slideways or including slidewalls for the vertical edges of the curtain, the wind-up shaft being rotated in either direction by a vertically disposed electric motor which is advantageously of the brake type, and which drives the wind-up shaft via an angle transmission, wherein the electric motor is housed inside one of the uprights, preferably close to the top of the upright.
Patent CA-2031031-A1 (CA)
Title: System for the production of crude oil by the injection of treatment fluid
Inventor: CHACIN U JESUS E
IPC: E21B41/02
Filed: 1990-11-28
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention relates to a system for improving the production of crude oil for underground reservoirs by the injection of treatment fluids.  The system includes a subsurface oil pump for pumping oil from the reservoir to the surface and includes a metering mechanism for selectively introducing treatment fluids into the pumping chamber during oil recovery.  A specific feature of the present invention is the provision of a seating nipple for sealingly receiving the pump within the production tube of the well.  In accordance with a particular feature of the present invention, a metering valve is incorporated within the pump barrel thereby allowing the pump barrel and metering valve to be removed from the production tube as a unit for easy replacement and repair thereof.          Furthermore, by selecting differently designed connecting adaptors, both insert type and tubing type subsurface pumps can be used with the metering valve assembly.
Patent CA-2032224-A1 (CA)
Inventor: BRAQUET PIERRE
IPC: C07D213/20
Filed: 1990-12-13
Abstract: The invention relates to  3-(N-methyl-N-alkyl)-amino 2-methoxymethylene propan 1-ol derivatives of the formula   wherein R stands for an alkyl chain, A stands for:          ,                 or          , and Y  represents  various  quaternary ammonia,  to  a preparation process of said compounds and to therapeutic compositions containing the same.  These compounds and compositions have an antitumoral activity.
Patent CA-2035112-A1 (CA)
Inventor: GUINAND JACQUES
IPC: H04J3/07
Filed: 1991-01-28
Abstract: This frame restructuring interface for digital sequences multiplexed by time-division multiplexing of digital tributaries at various rates in accordance with a synchronous multiplexing hierarchy at the various levels of which are constituted entities called containers and entities called multiplexing units, includes means of extracting incoming frames from the signals constituting containers to be processed and means for building and for multiplexing into restructured frames partitioned into segments of equal length, restructured multiplexing units, by inserting these signals, as well as indexing and justifying signals producing a matching of their extraction and insertion timing, at elementary locations which for the same container to be processed, have, inside each restructured frame segment, ranks defined with respect to the start of the segment, these ranks being invariable from one frame segment to another and from one frame to another and each collection of locations of equal rank of the segments of the restructured frames being assigned to at most one restructured multiplexing unit. 
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Patent CA-2035404-A1 (CA)
Title: Latent epoxy resin hardeners
Inventor: HELFAND DAVID
IPC: C08G59/54
Filed: 1991-01-31
Abstract: K-17949/-+/CGC 1469 LATENT EPOXY RESIN HARDENERS            Abstract of the Disclosure The reaction products of polyallylnadic anhydride and various polyamines are latent hardeners for use in epoxy resins having more than one 1,2-epoxy groups per molecule. Mixtures of these products and epoxy resins are stable at room temperature for extended periods, yet cure quickly at elevated temperatures to yield products with high glass transition temperatures.
Patent CA-2035605-A1 (CA)
Inventor: EISENHART ERIC K
IPC: C09D7/00
Filed: 1991-02-04
Abstract: AB ? RACT OF THE DISCLOSURE   This invention relates to an improved polymeric thickener containing one or more polymer stages wherein: at least one of said polymer stages is an ionically-soluble polymer, said ionically-soluble polymer being polymerized from a monomer mixture comprising; a)  from about 0.1 to about 55% by weight of at least one first hydrophobic monomer, b)  from about 10 to about 60% by weight (C3-C30) ethylenically-unsaturated, ionizable monomer,         and c)  from about 10 to about 90% by weight nonionic (C2-C30) ethylenically-unsaturated monomer, the improvement being characterized in that from about 50 to 100 weight % of said nonionic (C2-C30) ethylenically unsaturated monomer (c) is at least one second hydrophobic monomer selected from the group consisting of styrene, butyl acrylate, ethylhexyl acrylate, lauryl acrylate, stearyl acrylate,methyl methacrylate, and butyl methacrylate.
Patent CA-2036929-A1 (CA)
Title: Polymerization catalysts and processes
Inventor: WITT DONALD R
IPC: C08F10/00
Filed: 1991-02-22
Abstract: Abstract of the Disclosure An improved supported chromium oxide catalyst, a process for preparing the catalyst and a process for polymerizing olefin monomers utilizing the catalyst are provided.   In accordance with the preparation process, chromium oxide and a support containing one or more of silica, titania, thoria, alumina, zirconia or aluminophosphates are combined, impreg-nated with a metal salt and activated.  The metal salt is selected from the group consisting of alkali metal salts, alkaline earth metal salts and mixtures thereof.
Patent CA-2038939-A1 (CA)
Inventor: FURUKAWA SATOMI
IPC: G05B19/418
Filed: 1990-08-10
Abstract: What is disclosed is a production control system for dealing with the demand of producing many kinds of products in small quantities within a short delivery period by improving productivity of production lines and unmanned operation of the lines.  The production control system has a plurality of facilities (1) including parts mounters (14) for processing products through processes, cell controllers (2) for controlling the facilities, a line control system (3) for centrally controlling all the cell controllers, and a transporting unit (4) controlled by the line control system to transport the products between the facilities.  The line control system (3) comprises a unit (401) for preparing a detailed execution schedule by considering, in real time, a schedule of a relatively short period extracted from a schedule of a relatively long period, half-finished conditions of the products in a line, and actual events.  The line control system controls the cell controllers, parts mounters, and transporting unit according to the prepared execution schedule.
Patent CA-2041534-A1 (CA)
Title: Deboning tip for electrothermal dental bracket removal
Inventor: MARTIN PATRICK
IPC: A61C7/14
Filed: 1991-04-30
Abstract: DEBONDING TIP FOR ELECTROTHERMAL DENTAL BRACKET REMOVAL                         ABSTRACT            A debonding tip for electrothermal debonding device is disclosed.  This debonding tip fits around the mesio distal sides and into the saddle slot of a dental bracket.  The debonding tip causes rapid heating of the dental bracket and weakens the adhesive bond used to bond brackets to teeth.  With the increased viscosity, the bracket is able to be rotated around and pulled off the tooth.
Patent CA-2043142-A1 (CA)
Title: Golf chipping practice apparatus
Inventor: SULLIVAN BRUCE J
IPC: A63B71/06
Filed: 1991-05-23
Abstract: Abstract of the Disclosure A golf chipping practice apparatus is provided which includes a plurality of separate panels onto which balls are chipped.  Each panel is divided into a plurality of target zones, including target holes.  A plurality of sensors automatically detect where a ball lands and an automated scorekeeping device assigns a scoring value to each shot based on where it lands.          The scorekeeping device generates a total score and determines when a round has been completed, based on a predetermined number of balls having landed on each panel.  A golf chipping practice game suitable for the apparatus is also disclosed.
Patent CA-2045125-A1 (CA)
Title: Spray conversion process for the production of nanophase composite powders
Inventor: MCCANDLISH LARRY E
IPC: B22F1/054
Filed: 1990-11-02
Abstract: ABSTRACT   A process  is described for the production of composite powders with ultrafine microstructures.  The process involves three coordinated steps: 1)  preparation and mixing of an appropriate starting solution; 2)  spray drying to form a chemically homogeneous precursor powder; and 3)  fluid  bed  thermochemical  conversion  of  the precursor into the desired nanophase composite powder.   Both spray drying and fluid bed conversion are scaleable technologies, and together provide the means for producing bulk quantities of nanophase composite powders  at  low  manufacturing  cost.    Processing parameters are controlled to ensure maintenance of chemical  and  microstructural  uniformity  at  the nanoscale (less than 0.1 micron) level.   Spray  conversion  processing  is  a  versatile technology,  which can be applied to a variety of metal-metal (e.g. W-Cu), ceramic-metal (e.g. WC-Co), and   ceramic-ceramic (e.g.   Al2O3-SiO2)   nanophase composite powders  ceramic-metal  (e.g.  WC-Co),  and ceramic-ceramic (e.g. Al2O3-SiO2) nanophase composite powders.
Patent CA-2047601-A1 (CA)
Title: Apparatuses and methods for incorporating blowing agents into liquids for the production of polymer foams and for measuring the volumetric expansion potential of mixtures thereof
Inventor: LEHNERT ANDREW B
IPC: C08J3/20
Filed: 1991-07-23
Abstract: ABSTRACT       Apparatus (10, 180, 260, 270) for incorporating blowing agents into a liquid material provides a high pressure liquid storage and mixing tank (20, 181, 261, 271) containing a mixture of liquid material (M) under pressure; means for delivering (59, 220, 232, 285) a pre-determined quantity of at least one blowing agent into the mixture in minute bubbles or droplets having an average diameter of from about less than 0.2 micron up to about 100 microns; and means for uniformly distributing (60, 110, 237, 276) the blowing agent throughout the liquid material.  Apparatus (100, 260, 270) for measuring the volumetric expansion potential of at least one blowing agent and a liquid material component (M) within a closed system comprises high pressure tank means (106, 181, 261) containing liquid material and at least one blowing agent under pressure; means for measuring (135, 240) the volumetric expansion potential of the mixture, providing first (136, 250) and second (138, 251) chambers, communicating with each other and with the tank; means for transferring (142, 143, 243) the mixture into and out of the first and second chambers, the second measuring chamber having a volume sufficiently greater than the volume of the first chamber whereby at least some of the blowing agent will leave the mixture; means for measuring (164, 252) the pressure in the first chamber; and means for measuring (144, 145, 253) the volumes displaced by the mixture within the first and second first chambers.  Finally methods are provided for use of the foregoing apparatuses.
Patent CA-2049558-A1 (CA)
Inventor: FISHER MICHAEL V
IPC: H01B13/00
Filed: 1991-08-20
Abstract: A device for aligning superconductor filaments to form a filament layer includes a backboard and a number of motor-driven supply spools. Each of the supply spools is rotatably mounted on the backboard, and each of the supply spools holds one end of an individual superconductor filament. The opposite ends of the filaments are attached to a single rotatable wire take-up spool. Accordingly, the wire take-up spool can be rotated to transfer the filaments from the respective supply spools to the take-up spool.      The device of the present invention also includes a combiner board which is mounted on the backboard normal to the backboard between the supply spools and the wire take-up spool. The combiner board receives each of the superconductor filaments as the filaments are transferred from the respective supply spools to the take-up spool to guide the filaments into a layer of aligned superconductor filaments.      Additionally, each supply spool has a tension controller individually associated with the respective supply spool.      Each of the tension controllers engages the superconductor filament that is associated with the respective supply spool and establishes a speed of rotation for the associated supply spool motor such that it matches the speed of the take-up spool. In addition, the predetermined angle of pivot arm component of the tension controller establishes a predetermined tension of the respective filament.
Patent CA-2050262-A1 (CA)
Title: Reclaiming of refrigerant fluids to make same suitable for reuse
Inventor: PACKO JOSEPH J
IPC: C07C19/08
Filed: 1991-08-29
Abstract: ABSTRACT OF THE DISCLOSURE            A system to remove moisture chemically from refrigerant fluid being recaptured, recycled or reclaimed comprises adding an appropriate organosilane to the refrigerant being treated in the reclamation/ recycling apparatus.
Patent CA-2051392-A1 (CA)
Title: Focal destruction of eye tissue by electroablation
Inventor: DOBROGOWSKI MICHAEL J
IPC: A61F9/007
Filed: 1991-02-13
Abstract: ABSTRACT OF THE DISCLOSURE     A non-invasive method for focal transcleral destruction of living human eye tissue.  The method includes providing a conical-shaped probe (12), filled with a neutral saline solution and having inserted therein an electrode (14) connected to the positive terminal (22) of a constant current supply (20).  The narrow aperture end of the probe is lowered onto the conjunctiva overlying the target tissue, in about 20 - 30 locations with a current in the range from about 3.0 - 4.0 milliamps for about 30 seconds to 5 minutes at each location.
Patent CA-2055279-A1 (CA)
Title: Hay baler
Inventor: RANSOM WOODBURY S
IPC: A01D85/00
Filed: 1991-11-12
Abstract: ABSTRACT      A baling apparatus is provided for forming fibrous material into rectangular bales.  The apparatus includes a bale chamber having a rectangular cross-section with a sub-stantially vertically (typically 10-12° from vertical) dis-posed inlet end.  Structure is disposed forwardly of the bale chamber for delivering a mat of material to be baled to the bale chamber.  The structure includes a conveyor having a vertically reciprocating discharge chute for discharging the mat of fibrous material in a vertical zig-zag pattern at the inlet end of the bale chamber to form successive layers of folded material within the bale chamber.  Dedicated structure is provided for compressing the fibrous material with a flat surface at upper and lower portions of the bale chamber in a direction towards the rear of the bale chamber.
Patent CA-2057512-A1 (CA)
Title: Epoxy resin mixtures for fiber composites
Inventor: STAENGLE MICHAEL
IPC: C08G59/50
Filed: 1991-12-12
Abstract: O.Z. 0050/42088 Abstract of the Disclosure: An epoxy resin mixture contains A.   an epoxy resin of high functionality, B.   a bisphenol F epoxy resin of low functionality, C.   optionally an epoxy resin of low functionality and low molecular weight, D.   an N-containing hardener, E.   optionally an accelerant, F.   optionally a rubber, and G.   optionally a high temperature resistant thermoplastic.
Patent CA-2058419-A1 (CA)
Inventor: SOHNER HAROLD K
IPC: H04B1/707
Filed: 1991-03-15
Abstract: An improved spread spectrum communications system is provided for establishing full-duplex voice/data radio communications within a single specified FCC ISM band.  Spectrum spreading is performed relative to a plurality of sub-bands respectively defined about the lower and upper band-edges of the prescribed ISM band and having spectral roll-off characteristics which satisfy FCC requirements for radio frequency radiation outside the ISM bands on the corresponding band-edges thereof.  Full-duplex operation is implemented by the use of digital MSK modulation (52) and associated filtering (58) in order to conserve available bandwidth and accommodate the filtered, modulated signal within the sub-bands defined in the prescribed ISM frequency band, and the system is capable of being easily interfaced to related digital communications services.
Patent CA-2060445-A1 (CA)
Inventor: ASKEW WARREN
IPC: E21B7/06
Filed: 1992-01-31
Abstract: In accordance with illustrative embodiments of this invention, a downhole adjustable stabilizer includes a sleeve having outwardly extending blades and mounted for limited rotation on a mandrel, vertically aligned sets of radially movable buttons mounted in bores in the blades, and longitudinal flats on the outer periphery of the mandrel that when radially aligned with the respective sets of buttons allows them to shift inward to positions where the stabilizer becomes undergage and can be tilted in the borehole.  Some spring loaded buttons drag against the borehole wall to provide frictional restraint against rotation of the housing.  The blades can each have an inclined side surface that causes the sleeve to be rotated to its position relative to the mandrel where the sets of buttons are retracted as the stabilizer slides downward in the borehole. In another embodiment a hydraulic delay is provided which restrains relative rotation in the direction which causes the buttons to extend to their full gauge diameter.
Patent CA-2063533-A1 (CA)
Inventor: FRISWELL MICHAEL R
IPC: C10L1/00
Filed: 1992-03-19
Abstract: Liquid petroleum products are marked with markers having the formula:       wherein the R1s and the R2s are the same or different and are each selected from -H and C1-C7 alkyls; provided that at least one, and preferably both, R1s are a C3-C7 alkyl; and wherein the R3s are the same or different and are selected from -H, -NO2, -Cl, -Br, -F, -CN, and -Me; and provided that at least one R3 is selected from -NO2, -Cl, -Br, -F, and -CN.
Patent CA-2065425-A1 (CA)
Title: Macrocyclic compounds and novel method of treatment
Inventor: DONALD DAVID K
IPC: A61K31/40
Filed: 1990-09-13
Abstract: Compounds of formula (I), wherein R1 and R2 independently represent H or OH, or a second carbon-carbon bond; R3 represents optionally substituted methyl, ethyl or propyl; R4 represents H;  R5 and R6 represent a second carbon-carbon bond; R7 represents H or OH; R8 represents OCH3; R9 represents OH or OCH3; X and Y independently represent O or (H, OH); n represents 1 or 2; and in addition some of the substituents form rings with each other; with various provisos; are indicated in the treatment of immunodepression. A number of novel compounds of formula (I) are also provided.
Patent CA-2065807-A1 (CA)
Title: Process for the preparation of 1,5-hexadiene cyclopolymers and products thus obtained
Inventor: RESCONI LUIGI
IPC: C08F32/00
Filed: 1992-04-10
Abstract: ABSTRACT            "PROCESS FOR THE PREPARATION OF  1,5-HEXADIENE CYCLOPOLYMERS                 AND PRODUCTS THUS OBTAINED"    Highly   crystalline   high   melting    1,5-hexadiene cyclopolymers are prepared by carrying out the polymerization in the presence of a catalyst comprising a specific Zr or Hf metallocene compound and specific alumoxane compounds.
Patent CA-2069337-A1 (CA)
Title: Adn, constructions, cellules et plantes qui en sont derivees
Inventor: BIRD COLIN R
IPC: C07K14/415
Filed: 1990-10-17
Abstract: Constructions d'ADN comprenant une séquence d'ADN homologue à tout ou partie du gène encodé par le clone pTOM36. Ces constructions peuvent en outre inclure une région d'initiation de transcription efficace chez les végétaux pour transcrire cette séquence d'ADN, éventuellement en direction anti-sens afin de produire un ARNm complémentaire du gène pTOM36. Des cellules végétales et végétaux transformés peuvent être obtenus à partir de ces constructions: les fruits de ces végétaux, par exemple tomates, devraient avoir des caractéristiques de maturation modifiées.