baber/WOPTO huggingface dataset:
Patent CA-2028005-A1 (CA)
Title: Protective cover for use in a plastic processing machine
Inventor: HEHL KARL
IPC: B29C45/17
Filed: 1990-10-18
Abstract: PROTECTIVE COVER FOR USE ON A PLASTIC PROCESSING MACHINE    A transparent pane of the protective cover is urged by a resilient biasing member of foamed plas-tic against a frame body of the cover. ?n that side of said pane which is opposite to the frame body the bias-ing member is backed by finlike abutment means joined to the frame body. As a result, the manufacture of the protective cover can be automated to a higher degree and involves only a relatively small amount of manual assembling work and the protective cover will be highly unsusceptible to shakes and vibration occurring in the operation of the machine even when it has a long service life.
Patent CA-2029482-A1 (CA)
Title: Steam powered electric generating system
Inventor: BOYD KENNETH R
IPC: H02P9/00
Filed: 1990-11-07
Abstract: Abstract of the Disclosure A self-contained electro-steam AC generating system has a battery powered steam generator, a steam turbine powered by the steam from the steam generator, an AC electrical generator driven by the steam turbine, a distribution transformer with multiple windings for feeding a load and a rectifier circuit for recharging the battery used to power the steam generator.
Patent CA-2032474-A1 (CA)
Title: Self-advancing dispenser with any day start
Inventor: HIRST RICHARD N
IPC: A61J7/00
Filed: 1990-05-10
Abstract: This invention relates to apparatus and methods for dis-pensing a series of pills in a prescribed order. Although a variety of dispensers are available the designs are inadequate to serve the needs of the patient by assuring the medication is adminis-tered in the prescribed sequence. A pill package (110) is dis-posed within the dispenser (100) and is locked in place and can-not be removed. A plunger (120) is provided to facilitate the expulsion of a pill from the pill package. The pill package (110) automatically advances to the next dispensing position immedi-ately after the expulsion of the proper pill. A calendar indicator (130) is provided for designating the period the pills are to be taken. The indicator can be present to indicate a specific day the first pill is to be taken. The indicator can also be set by the user to locate any day of the week the first pill is to be taken.
Patent CA-2035957-A1 (CA)
Title: Process for reducing the undesirable halide content of epoxy resins
Inventor: WANG CHUN S
IPC: C07D301/32
Filed: 1991-02-07
Abstract: ABSTRACT       The total aliphatic halide content of epoxy resins is reduced by heating a resin containing hydrolyzable halide or bound halide or both hydrolyzable and bound halide dissolved in a solvent system containing at least one polar aprotic organic solvent which is not a ketone and at least one compound containing at least one aliphatic hydroxyl group per molecule in the presence of a suitable basic-acting compound for a time sufficient to reduce the total undesirable halide content. 37,960-F
Patent CA-2036762-A1 (CA)
Title: Co-oligomerization process
Inventor: DOYLE MICHAEL J
IPC: C07C2/34
Filed: 1991-02-20
Abstract: A process for the preparation of linear olefins comprises reacting ethane with at least one further alpha olefin under oligomerizing conditions in the presence of a catalyst system comprising a combination of a first component which is a bis(cyclopentadienyl) Group IVA metal compound containing a substituent capable of reacting with a cation and a second component which is a compound having a bulky anion containing a plurality of boron atoms and which is substantially non-coordinating under the reaction conditions and a cation, and recovering an oligomeric product comprising linear olefins.
Patent CA-2037020-A1 (CA)
Inventor: ASLAM MOHAMMAD
IPC: B01J27/12
Filed: 1991-02-25
Abstract: ABSTRACT         A process for the preparation of anthraquinone compounds comprises reaction of phthalic anhydride with a benzene derivative in a reaction mixture containing HF and BF3 as catalyst at a first temperature up to about 30°C and, subsequently, at an elevated temperature.
Patent CA-2037932-A1 (CA)
Title: Methylenediphosphonic acid compound and anti-inflammatory agent containing the compound as effective component
Inventor: KAWABE NORIO
IPC: A61P43/00
Filed: 1990-08-17
Abstract: ABSTRACT    This  invention  relates  to  a  methylenediphosphonic acid  compound  expressed  by  the  formula  (1),  and  the compound has a marked effect as an anti-inflammatory agent or, more particularly, against inflammations accompanying to disturbances in bone metabolism.
Patent CA-2041666-A1 (CA)
Inventor: HAINES JOHN D
IPC: A47C7/00
Filed: 1990-04-06
Abstract: 2041666 9011709 PCTABS00002 A pedestal, particularly a pedestal which provides a base for a swivel chair or other article of furniture, comprises a socket (10) for receiving an upstanding column and a plurality of arms (11) extending radially from the socket to support it on a floor, characterised in that the socket (10) and its supporting arms (11) are moulded in one piece, e.g. from plastics, the arms are hollow with tops which are open when moulded, and separately formed cover strips (14) are attached to the tops of the arms to close them.
Patent CA-2042888-A1 (CA)
Title: Apparatus and process for introducing catalyst particles into a moving bed of catalyst
Inventor: VAN OMMEN KLAAS
IPC: C10G11/18
Filed: 1991-05-17
Abstract: A B S T R A C T            APPARATUS AND PROCESS FOR INTRODUCING CATALYST    PARTICLES INTO A MOVING BED OF CATALYST      Apparatus suitable for introducing catalyst particles into a moving bed of catalyst, which apparatus comprises a housing having in the upstream part thereof inlet means for introducing catalyst particles in the housing and fluidization means, and in the downstream part thereof a passage for the catalyst particles defined between directing means and the inner wall of the housing and/or between adjacent directing means facing each other, wherein the passage has a narrowing part and a narrow part in downstream direction. The invention further relates to a process for introducing catalyst particles into a moving bed of catalyst. It is preferably used for the catalytic cracking of a hydrocarbonaceous feedstock to lighter products.
Patent CA-2043577-A1 (CA)
Title: Method and apparatus of controlling fuel-to-air ratio of the combustible gas supply of a radiant burner
Inventor: RIPKA CHESTER D
IPC: F23N1/04
Filed: 1991-05-30
Abstract: METHOD AND APPARATUS FOR CONTROLLING FUEL-TO-AIR RATIO OF THE COMBUSTIBLE GAS SUPPLY OF A RADIANT BURNER                         ABSTRACT   In a heating appliance employing a radiant burner, a method and apparatus for setting the ratio of gaseous fuel to air supplied to the burner to a desired value.  With the gaseous fuel flow rate held constant, the air flow rate is controlled to maintain the fuel-to-air ratio at the desired value.  The invention uses a sensor that measures the intensity of radiation emitted by the burner.  A control device compares the measured intensity to a reference intensity and regulates the air flow rate such that the measured intensity is equal to the reference intensity. The burner emits radiation equal to the reference radiation intensity when it is burning a combustible gas supply containing the desired fuel-to-air ratio, so that by regulating the air flow rate to cause the burner to emit the reference radiant intensity, the fuel to-air ratio will be at the desired value.
Patent CA-2049122-A1 (CA)
Title: Optical reader
Inventor: BALDWIN DWIGHT G
IPC: G06K7/10
Filed: 1991-08-13
Abstract: Abstract of the Disclosure A optical reader for scanning optical marks from a substrate.  The reader employs a novel optical geometry to eliminate undesirable specular reflections from entering the optical detection system.  A stage area is provided for receiving the substrate, the stage having a window through which an incident beam of light passes at an oblique angle with respect to the window.  A retrocollection system is used to return reflections from the substrate to the optical assembly.  By directing the beam at an oblique angle with respect to the window, specular reflections are not collected in the retrocollection system and thus are not received by the optical detection system.  The invention also utilizes a permanent magnet, direct current motor for controlling a scanning mirror, and further has a motor control circuit for preventing the introduction of electrical noise from the motor during the scan.  A sensor may be provided to detect the presence of the card on the stage and provide "on demand" scanning.
Patent CA-2049947-A1 (CA)
Inventor: MONLUX KENNETH J
IPC: B09C1/06
Filed: 1991-03-06
Abstract: Process and apparatus for near-zero discharge soil remediation, preferably in conjunction with an asphalt plant, compris-ing heating soil contaminated with up to about 30,000 ppm light hydrocarbons in an inclined, axially-fired rotating separator, and sampling the output soil to determine the remaining contaminants. If below 100 ppm (preferably 10 ppm) it may be reem-placed as clean fill. If it does meet D.O.T./CALTRANS standards and is below about 100 ppm it may be used as roadbed fill. If between about 1000 and 100 ppm and meets standards it may be used as aggregate, being mixed with hot oil to form asphalt. The separator offgases are condensed, the reclaimed liquid hydrocarbons separated and combined with the hot oil. The hot condenser offgases are supplied as secondary air to a main dryer, improving efficiency of operation. A dust/mud blow down system clears the heat exchange plenums with compressed air.
Patent CA-2050781-A1 (CA)
Title: Process for preparing semiconductor device
Inventor: SAKAMOTO MASARU
IPC: H01L21/3215
Filed: 1991-09-06
Abstract: A process for preparing a semiconductor device comprises exposing at least a part of the main surface of a semiconductor substrate, forming a layer comprising the same main component as the above substrate, forming a flattening agent layer on the surface of said layer, removing the above layer and the flattening agent layer at the same time and injecting an impurity after said removing step.
Patent CA-2052644-A1 (CA)
Title: Method and device for the retrieval of moving bodies driven at high velocity
Inventor: BERNARD MARC
IPC: F16F7/12
Filed: 1991-10-02
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed are  a  braking  method  and  a  braking device of the type comprising an obstacle connected  to a cable  which is  itself connected  to means  for  the braking  of  the  obstacle,  wherein  the  obstacle  is constituted  by   a   retaining  shield   designed   to constitute the initial  contact surface  of the  moving body and  of the  obstacle,  said shield  being  itself coupled loosely, on the one hand to means of linkage to the retaining  cable, which  is  itself linked  to  the braking means, and on the other hand also loosely, to a structure formed by  parts that are loosely  assembled with one another.
Patent CA-2056872-A1 (CA)
Title: Method of and machine for forming compound curvatures in metal sheets by drawing
Inventor: CREASER CHARLES
IPC: B21D25/02
Filed: 1991-12-03
Abstract: ABSTRACT      An improved method of and apparatus for forming sheet material into compound curves by drawing, in which critical positioning, dimensioning and relative curvatures of forming bead stages are provided for such curvatures as sectors of paraboloidal antenna reflectors and other compound curve sheets.
Patent CA-2057580-A1 (CA)
Inventor: STEPHAN CHRISTOPH
IPC: B65D85/575
Filed: 1991-12-13
Abstract: A container for magnetic tape cassettes has a housing having a plurality of receiving compartments for magnetic tape cassettes, a plurality of base plates separating the compartments from one another, a lockable slider member ejectable under a spring action to a position in which a magnetic tape cassette arranged on the base plate can be removed, resilient locks provided on the slider member and formed as pivotable rocker arms adapted to engage two reel hubs of a magnetic tape cassette, projections arranged on the base plate, and elevations.  The rocker arms have laterally mounted pegs which, when the slider member is ejected, disengage the rocker arms from the reel hub by running beneath the projections, and when the slider member is inserted to engage the rocker arms in the reel hub by running on the elevations.
Patent CA-2059270-A1 (CA)
Title: X-ray cassettes
IPC: G03C3/00
Filed: 1990-06-19
Abstract: A cassette for holding sheet film during exposure to x-radiation includes first and second hingedly connected panels. Both panels are curved substantially cylindrically when in the open condition, with the axes of the cylinders parallel to the hinge line and with the convexities facing one another. One of the panels is formed of carbon fiber reinforced plastics material and addi-tionally, in some regions, deviates from the cylindrical by being curved towards the other panel, when in the open condition. Thus, while the cylindrical curvature is convex towards the other panel the regions of curvature out of the cylindrical exhibit some concavity towards the other panel. Such a panel improves the contact of the intensifying screens with the film and also the integri-ty of the light seal at the periphery of the cassette.
Patent CA-2064900-A1 (CA)
Inventor: BULFARI MARIO
IPC: C11D1/46
Filed: 1990-08-28
Abstract: A stable liquid detergent composition comprising a dispersion of lamellar droplets of detergent active materials in an aque-ous continuous phase, said composition comprising a hydrotroping material and preferably a salting out electrolyte.
Patent CA-2067374-A1 (CA)
Inventor: YAMAGUCHI MASAYOSHI
IPC: A61K31/415
Filed: 1990-09-28
Abstract: the present invention relates to an orally-administrable osteogenesis promoter, which comprises, as an active ingredient, a zinc salt or complex of h-carnosine, has excellent osateogenesis-accelerating action, and is extremely low in toxicity and side effects.
Patent CA-2069268-A1 (CA)
Title: Method for attenuating undesirable data, such as multiples, using constrained cross-equalization
Inventor: MONK DAVID J
IPC: G01V1/36
Filed: 1992-05-22
Abstract: To eliminate undesirable energy recorded during seismic surveying, a trace that models the undesirable energy on the recorded data trace is prepared. The model trace is first estimated using a suitable technique, such as wavefield extrapolation. Then, the model trace is modified using a best estimate of the amplitude, phase and time delay differences between the model trace and the data trace. The estimated amplitude, phase and time delay differences may be used to design a cross-equalization filter, which is used to cross-equalize the model trace with the data trace.      Alternatively, the best estimate determination may include using a weighted sum of the model trace, its imaginary component, and their derivatives. When weighted and summed together, these components form a cross-equalized model trace that closely approximates the undesirable energy on the recorded data trace. Lastly, the cross-equalized model trace is subtracted from the data trace to substantially eliminate the undesirable energy.
Patent CA-2073813-A1 (CA)
Inventor: HERZIG CHRISTIAN
IPC: C08G77/50
Filed: 1992-07-14
Abstract: The invention relates to novel alkenyl group-containing siloxane copolymers containing 
 
  (a) siloxane units of the formula 
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  (b) at least one siloxane unit of the formula 
<IMAGE>
 per molecule, and 
  (c) on average at least one unit selected from the group of units of the formulae 
<IMAGE>
 where R, R<1>, A, A<1>, A<2>, A<3>, a, b and c are as defined in Claim 1, per molecule.
Patent CA-2075275-A1 (CA)
Title: Method and a system for recycling waste materials including plastics materials
Inventor: STROPPIANA FERNANDO
IPC: B29B13/10
Filed: 1992-08-04
Abstract: A method and system for recycling waste materials enables the treatment of masses of waste including thermosetting plastics materials, high-melting thermoplastics materials, aluminium, wood, paper, fabrics, etc. The mass of waste is first subjected to a grinding process, preferably in two stages, to reduce it to a maximum particle size of the order of 10 mm.      The granular material thus produced undergoes a heating and mixing process and is then reduced to sheet or strip form and simultaneously cooled in order to undergo a scraping or shaving process which leads to the formation of a mass substantially comparable to a powder with a particle size of between 50 and 1000 microns, including a certain quantity of fibres. The shavings produced can be mixed with a better-quality plastics material, at least some of which may be produced from fairly large articles made of plastics materials which are first separated from the mass to be treated and ground separately, to produce a recycled plastics material in which the fraction of thermosetting materials, high-melting thermoplastics, aluminium, etc. constitute a filler and a fibrous reinforcing structure.
Patent CA-2075476-A1 (CA)
Inventor: ALLAVENA JEAN P
IPC: G06F3/041
Filed: 1991-02-19
Abstract: 2075476 9112592 PCTABS00105 La présente invention concerne un dispositif formant écran tactile du type capacitif. Le dispositif est caractérisé en ce qu'il comprend des premier et second groupes d'électrodes électriquement conductrices respectivement (2) et (5) séparés par un diélectrique (1) pour définir une pluralité de paires de condensateurs, les électrodes (5) formant touches de façon que l'apposition sur l'une de celles-ci d'un corps formant référentiel de masse modifie la capacité du condensateur correspondant. La présente invention trouve application notamment dans un équipement de visualisation informatique permettant un dialogue conversationnel.
Patent CA-2080017-A1 (CA)
Title: Method for repairing flow conduits, such as pipe lines
Inventor: KARTTUNEN MIKKO
IPC: F16L55/165
Filed: 1991-04-05
Abstract: In a method for repairing flow con-duits, such as pipe lines, the inner surface of a conduit (7) is provided with a flexible material (8) which includes a curing agent as well as a reinforcement layer (5). This is followed by hardening said curing agent:      According to the invention, said reinforce-ment layer (5) comprises a knitted fabric, by virtue of which said material has a good compliancy.
Patent CA-2084507-A1 (CA)
Inventor: WEINBERG AARON
IPC: H04B17/00
Filed: 1991-06-05
Abstract: The interference detection and characterization system (13) of this invention supports modern communication systems which have to content with a variety of intentional and unintentional interference sources. As an add-on to existing communications equipment, the invention employs novel signal processing techniques to automatically detect the presence of communications channel irregularities in near real-time and alert the attending operator (26).  Information provided to the operator (26) through a user-friendly interface (25) is used to characterize the type of interference and its degree of severity. Once characterized, the information is used by the operator to take corrective actions including the activation of alternative communication plans, or in some instances, mitigation of the interference. Since output from the system of this invention lends itself well to expert system and neural network environments, such systems could be employed to further aid the operator (26). Other uses include bit error rate estimators, communication channel scanners, and as laboratory test equipment to support receiver development and performance verification.
Patent CA-2086424-A1 (CA)
Title: Grouting method for rigidly connecting two elements using a binder, and in particular for anchoring one element in another
Inventor: LEGRAND JEAN-JACQUES
IPC: A61C8/00
Filed: 1992-04-30
Abstract: Fixing method enabling the fastening of two pieces by means of a binding agent, and more particularly the cementing of one piece in another one, in particular a prosthesis in a bone cavity. This method consists in making beforehand in the piece (1) to be cemented a channel (10) passing through the said piece (1) along an axis substantially parallel to that of the introduction of the said piece (1) to be cemented into the housing (20) made in the piece (2) intended to receive, and in injecting the binding agent (3) into the said channel (10) until the said binding agent (3) fills the space (21) contained between the piece (1) and the wall of the housing (20). Centring elements (23) may be placed around the piece (1), in the space (21) contained between the said piece (1) and the wall of the housing (20), and a sealing piece (4) may be positioned around the piece (1) to be cemented, on the opening (22) of the housing (20). The injection channel (10) made in the piece (1) to be cemented may be provided with a thread making it possible to introduce therein a threaded rod with a view to extracting the piece (1). <IMAGE>
Patent CA-2087395-A1 (CA)
IPC: H04R7/02
Filed: 1993-01-15
Abstract: A method of making a loudspeaker cone and surround assembly comprises clamping at least the outer marginal edge of a cone in a mould having a cavity defining a surround and injecting an elastomeric material into the cavity through an annular orifice extending substantially continuously around the said marginal outer edge to form a surround attached to the outer marginal edge of the cone.      Preferably the method comprises the step of feeding the elastomeric material to the annular orifice through an annular feed chamber extending around the mould cavity.      The annular orifice may be narrow in width in comparison to the thickness of the surround and the method may comprise the step of separating the surround from an annular ring of sprue formed by elastomer which has solidified in or outside the annular orifice by tearing while the elastomer is still hot from the injection moulding step.      From another aspect the invention is injection moulding apparatus for carrying out the method described above.
Patent CA-2087555-A1 (CA)
Title: Galvanic cell
Inventor: NODA TOMOHIKO
IPC: H01M10/0565
Filed: 1993-01-19
Abstract: A galvanic cell is disclosed in which at least one of the negative electrode, the positive electrode and the separator comprises a solid electrolyte prepared by doping an ionic compound to an organic polymer. The organic polymer is a polymer obtained by crosslinking an organic compound having a structure of the general formula:        Z-[(A)~ -(E)~ -Y ]~   (I) in which Z is a residue of a compound containing at least one active hydrogen; A is represented by the formula:      wherein n is an integer of from 0 to 25 and R is alkyl having 1 to 20 carbon atoms, alkenyl, aryl or alkylaryl; E is at least one of -(R2O)-, wherein R2 is alkylene having two or more carbon atoms; Y is an active hydrogen or a polymerizable functional group; k is an integer of from 1 to 12; m is an integer of from 1 to 250; p is an integer of from 1 to 450; and A is random- or block-copolymerized with E.
Patent CA-2088157-A1 (CA)
Inventor: POLSKI STEPHEN P
IPC: A61L15/42
Filed: 1991-09-23
Abstract: A polyethylene-containing foam-backed absorbent article (1) having an adhesive patch (3) comprised of 25 to 50 parts of an A-B block copolymer and 25-50 parts of solid tackifying resin and liquid resin and/or plasticizing oil. The adhesive not exhi-biting any adhesive transfer when removed from a cotton fabric after one hour at 100 °F and 0.25 P.S.I.