baber/WOPTO huggingface dataset:
Patent CA-1322467-C (CA)
Title: Method and apparatus for measuring mass flow
Inventor: PRATT WAYNE
IPC: G01F1/82
Filed: 1987-10-13
Granted: 1993-09-28
Abstract: METHOD AND APPARATUS FOR MEASURING MASS FLOW          Abstract of the Invention In a Coriolis  type mass  flow meter,  a sensor structure which produces  a  linear output signals proportional to the motion of the flow meter conduit to determine the relative mass flow of a fluid passing through the conduit.   The sensor structure utilizing photo-optic type signal processing and interfaces the signal with a processor such that the signal is continuously calibrated to eliminate minor errors.   The photoelectric structure also substantially isolates the electronic processing hardware and circuitry from mechanical as well as electric or magnetic interferences from the flow meter environment. The  electronic  interface comprising circuitry for determining the instantaneous amplitude difference between the signals from the sensors of the flow meter at a plurality of discrete and adjacent intervals, circuitry for determining the product of the absolute value of  the instantaneous amplitude difference and the width of the interval for each interval, circuitry for determining the sum of the product for each interval over a cycle of oscillation, and circuitry for generating from the sum a signal representative of the mass flow.
Patent CA-1275934-C (CA)
Inventor: ANDERSON DAVID B
IPC: A23K1/16
Filed: 1987-12-08
Granted: 1990-11-06
Abstract: Abstract The invention provides a method for promoting the growth, improving the efficiency of feed utilization or improving the leanness of domesticated animals.  The method involves administering to the animal a compound having the formula (I)   wherein:         R1 is hydrogen, hydroxy, or methoxy; R2 is hydrogen or fluoro; R3 is hydrogen or C1-C2 alkyl; R4 is methyl; R5 is hydrogen, fluoro, nitro, hydroxy, SO2CH3 or CONH2; provided that R1 is hydrogen only when R5 is nitro or SO2CH3; or an acid addition salt thereof.
Patent CA-1295146-C (CA)
Title: Plastic profile for stress-relieving floor and wall joints
Inventor: SCHLUETER WERNER
IPC: E04B1/68
Filed: 1988-01-15
Granted: 1992-02-04
Abstract: PLASTIC PROFILE FOR STRESS-RELIEVING         FLOOR AND WALL JOINTS                 ABSTRACT OF THE DISCLOSURE        There is provided a plastic profile for use in the formation of relief joints in floors and walls.  The profile has a hollow box shape profile with receding side walls formed of hard plastic material.  The side walls are fitted with outer clamping elements and are interconnected by elastic soft plastic webs.  A colored insert strip is disposed beneath an upper transparent soft plastic web interconnecting the side walls.
Patent CA-1300694-C (CA)
Title: High power extended arc plasma spray method
Inventor: BROWNING JAMES A
IPC: B05B7/22
Filed: 1988-03-03
Granted: 1992-05-12
Abstract: HIGH POWER EXTENDED ARC PLASMA SPRAY METHOD     ABSTRACT OF THE DISCLOSURE      A high voltage, high current is applied between a cathode electrode and a conductive body forming a spray nozzle and acting as a second anode electrode aligned with the first electrode and being spaced therefrom.  A vortex flow of plasma-producing gas is established within a cylindrical body carrying said electrode to create a low pressure core of gas flow extending through the anode  passage  to  establish  an  extended  ionized  arc  column throughout the anode passage with the rate of gas flow adjusted and the arc current correlated to the anode nozzle passage diame-ter to produce a supersonic extended ionized arc column which extends beyond the end of the nozzle by a distance which is approximately four times the nozzle passage diameter.  Preferably the material  to  be  sprayed  is  introduced  into  the  extended ionized arc column beyond the end of the nozzle to maximize the spray rate without undesirably overheating the spray material.
Patent CA-1312278-C (CA)
Title: Process for the preparation of factor viii:c-deficient plasma, and a deficient plasma obtained in this way
Inventor: BECKER UDO
IPC: G01N33/36
Filed: 1988-03-04
Granted: 1993-01-05
Abstract: BEHRINGWERKE Aktiengesellschaft  87/B 007 - Ma 609 Dr. Ha/Bn Abstract of the disclosure Process for the preparation of factor VIII:C-deficient plasma, and a deficient plasma obtained in this way A process for the preparation of a factor VIII:C-deficient plasma is made available, in which a starting plasma is consecutively treated with antibodies against von Willebrand factor and antibodies against factor VIII:Ag. The deficient plasma prepared in this way contains less than 0.5 % resi-dual activity of factor VIII:C.
Patent CA-1310955-C (CA)
Title: Process for polymerization of olefins and polymerization catalyst
Inventor: KIOKA MAMORU
IPC: C08F4/646
Filed: 1988-03-09
Granted: 1992-12-01
Abstract: Abstract of the Disclosure A catalyst formed from (A) a solid titanium catalyst component con-taining magnesium, titanium, halogen and a polycarboxylic acid ester as essential ingredients and being obtained by contacting a magnesium compound, a titanium compound and a polycarboxylic acid ester, (B) an organoaluminum compound, and (C) an organosilicon compound represented by the following formula (1) SiR1R2(OR3)2 ..... (1) wherein R1 is selected from the class consist-ing of linear alkyl groups having at least 3 carbon atoms and arylalkyl groups in which the alkyl moiety has a secondary or tertiary alpha-carbon atom, R2 is selected from the class consisting of alkyl groups and arylalkyl groups in which the alkyl moiety has a secondary or tertiary alpha-carbon atom, and R3 is a hydrocarbon group, with the proviso that when R1 is a linear alkyl group having at least 3 carbon atoms and R2 is an alkyl group, the alkyl group for R2 is a linear alkyl group having at least 3 carbon atoms, and process for production thereof.
Patent CA-1322646-C (CA)
Inventor: WEBER PETER G
IPC: B29D23/00
Filed: 1988-03-31
Granted: 1993-10-05
Abstract: APPARATUS AND METHOD FOR PERMANENTLY JOINING SCREW CONVEYOR MODULES    ABSTRACT      Plastic conveyer screws are formed of two or more aligned modules joined together by melting the ends of two modules and forming a joint. Apparatus afforded by this invention for forming the screws from the modules supports and clamps two modules separately in longitudinal and rotational alignment. Supported modules are heated to melt the ends to be joined and are pressed together axially in the apparatus to form the joint and solidify the joint into a unitary screw assembly.
Patent CA-1327740-C (CA)
Title: Method to make independant from piston wear the fluid  tight seal of the inlet and outlet ports of fluid in a hydraulic appliance
Inventor: VITULANO MAURO
IPC: B25D9/14
Filed: 1988-04-19
Granted: 1994-03-15
Abstract: ABSTRACT            The  method  consists  in  applying  to  a  hydraulic  appliance,  for example  a  hydraulic  hammer,  a  sleeve-like  slide  cylindrical element    having an  inner diameter  D5  that  allows  the  coaxial movements of the piston in opposite directions without Knocking against  it,  and an external  diameter  D1  equal  to the. diameter of  the  cylindrical  chamber    in which the piston enters to be actuated by the pressure,  so as to act as a liner of the same chamber   and of the same piston.          Furthermore,  the  method  consists  in  causing  the  alternative motion of the sleeve   only by the pressure of the fluid, every-time the leading circular edge    of the section of the pressure actuated piston makes a fluid tight seal with the leading circular edge    of inner surface of element  .
Patent CA-1331907-C (CA)
Inventor: REINHERZ BARRY P
IPC: C03C8/20
Filed: 1988-11-10
Granted: 1994-09-13
Abstract: GLASS ENAMEL COATING COMPOSITIONS                 Abstract of the Disclosure In glass enamel coating compositions containing a glass frit system and a vehicle therefor, the improvement comprising the presence therein of iron, aluminum, zinc and tin sulfides or sulfates as an anti-stick agent; the resulting coatings being effective for application to glass sheets which are subsequently subjected to high temperature forming procedures.
Patent CA-1298628-C (CA)
Title: Amplifier circuit
Inventor: HISHIKI YUJI
IPC: H03F3/34
Filed: 1988-11-25
Granted: 1992-04-07
Abstract: ABSTRACT OF THE DISCLOSURE      The amplifier circuit is arranged such that an open drain type amplifying circuit is provided on the side of output of a differential amplifying circuit having an active load.  In this arrangement, the differential amplifying circuit is brought into a non-operational state, and at the same moment an electric potential of output of the differential amplifying circuit is fixedly set to a predetermined level.  Consequently, the open drain type amplifying circuit is surely kept in the non-operational state.
Patent CA-1315809-C (CA)
Title: Porous ceramic shapes, compositions for the preparation thereof, and method for producing same
Inventor: HELFERICH RICHARD L
IPC: C04B28/00
Filed: 1988-11-30
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE       Disclosed   herein   is   a  foamable,  self-setting ceramic  composition  which  can  be  poured into molds or injection-molded  or  extruded  to achieve desired shapes, and  thereafter optionally fired to produce shaped, porous ceramic  articles  useful  as filter elements, insulation, kiln  furniture,  molds, furnace linings, building blocks, or  other like articles, the composition containing agents capable  of  developing  an  alkali  metal aluminosilicate hydrogel   and   capable  of  generating  gas  to  produce porosity within the hydrogel bound molded shape.
Patent CA-1319473-C (CA)
Title: Process for manufacture of fibre-reinforced shaped articles
Inventor: GREGERSEN JENS C
IPC: C04B28/22
Filed: 1988-12-06
Granted: 1993-06-29
Abstract: A process for the manufacture of fibre-reinforced shaped articles.            A B S T R A C T            In a process for the manufacture of green shaped articles having a density of at least 1000 kg/m3 and a matrix of a cured inorganic binder said articles are prepared by dewatering an aqueous slurry of fibres and a matrix forming material comprising particles of an inorganic hydraulic binder, particulate inorganic additive and possibly other additives containing an excess of water in relation to the amount necessary to secure curing of the hydraulic binder, and containing, on a dry weight basis, 3-20%, preferably 5-20%, in particular 7-15%, cellulose fibres, after which the green shaped articles are cured. The matrix forming material comprises, on a dry weight basis, 40-90%, preferably 45-85%, of a coarse material with an average particle size of 35-12 µm, preferably 25-18 µm, preferably with a particle size distribution exhibiting only one maximum, comprising the hydraulic binder and possibly a silica- or silicate-containing, preferably pozzolanic active additive, 5-45%, preferably 10-40%, in particular 10-35%, of a fine inorganic, preferably silica- or silicate-contain-ing, in particular pozzolanic active additive with an average particle size of 10-1 µm, preferably 7-3 µm, preferably with a particle size distribution exhibiting only one maximum, 3-25% of an ultra fine preferably pozzolanic active additive with an average particle size within the range 1-0.02 µm preferably less than 0.5 µm, and 0-30% other additives.
Patent CA-1337951-C (CA)
Inventor: GEIBEL JON F
IPC: C08G75/02
Filed: 1989-01-27
Granted: 1996-01-16
Abstract: In one embodiment, a process is provided for treating virgin arylene sulfide resins, wherein a heated polymer slurry, comprising a virgin arylene sulfide resin and water, is contacted by a buffer solution having a pH less than about 9.35 but greater than that necessary to result in at least a partial curing of the virgin arylene sulfide resin. In a further embodiment, a process is provided for treating a virgin arylene sulfide resin, wherein a virgin arylene sulfide resin is slurried in a buffer solution having a pH less than about 9.35 but greater than that necessary to result in at least a partial curing of the virgin arylene  sulfide  resin.  The treating process of this invention is conducted at an elevated temperature, below the melting point of the virgin arylene sulfide resin, while in the substantial absence of a gaseous oxidizing atmosphere.  The treated arylene sulfide resins are recovered from the polymer slurry in a manner which does not result in at least a partial curing of the treated resin.
Patent CA-1308137-C (CA)
Title: Wheeled hand cart for wet/dry utility vacuum cleaner
Inventor: HULT DAVID R
IPC: A47L7/00
Filed: 1989-02-28
Granted: 1992-09-29
Abstract: Abstract of the Disclosure A wheeled hand cart for use with a wet/dry utility vacuum cleaner drum is disclosed.  A pair of wheel frames are mounted to the drum in spaced relationship to each other along a lower outer periphery of the drum.  Each wheel frame has a horizontally extending passageway and a vertically extending channel that intersects and extends across each horizontally extending passageway.  An upright handle section is positioned within the vertically extending channel of each wheel frame and has a transverse opening which is in alignment with the horizontally extending passageway of each wheel frame.          Horizontally extending passageways of the spaced wheel frames are in alignment with one another to receive a wheel axle extending therethrough and also through the transverse openings of the upright handle sections.  The wheels are mounted on the wheel axle for wheeled movement of the hand cart.  A handle interconnects the upright handle sections to facilitate movement of the drum by the wheeled hand cart.  The interconnecting handle and upright handle sections are also associated relative to the drum and an overlying drum cover in order to provide a stable and secure mounting of the wheeled hand cart relative to the drum.
Patent CA-1328137-C (CA)
Title: Process for the production of polyisocyanate mixtures containing uretdione and isocyanurate groups
Inventor: PEDAIN JOSEF
IPC: C07D229/00
Filed: 1989-03-07
Granted: 1994-03-29
Abstract: A PROCESS FOR THE PRODUCTION OF POLYISOCYANATE MIXTURES CONTAINING URETDIONE AND ISOCYANURATE GROUPS               ABSTRACT OF THE DISCLOSURE The present invention is directed to a process for the production of polyisocyanate mixtures containing isocyanurate groups and uretdione groups in a molar ratio of about 1:9 to 9:1 by oligomerizing a portion of the isocyanate groups of hexamethylene diisocyanate using trialkyl phosphines and/or peralkylated phosphorus acid triamides as the catalysts which accelerate the dimerization and trimerization of isocyanate groups, terminating the reaction at the desired degree of oligomerization by the addition of a catalyst poison and removing unreacted hexamethylene diisocyanate to a residual content of at most 0.5% by weight, characterized in that, before addition of the catalyst, the hexamethylene diisocyanate starting material is freed from carbon dioxide to a residual content of less than 20 ppm (weight).         The present invention is also directed to the polyisocyanates containing uretdione groups and isocyanurate groups obtainable by this process and their use, optionally blocked by blocking agents for isocyanate groups, as the isocyanate component for the production of polyisocyanate polyaddition products.
Patent CA-1318094-C (CA)
Title: Method and apparatus for making dental root canal filling points
Inventor: UBUKATA NOBORU
IPC: A61C5/50
Filed: 1989-04-04
Granted: 1993-05-25
Abstract: ABSTRACT OF THE DISCLOSURE A method for making a dental root canal filling point     is provided, wherein provision is made of a rotary member     having its outer  processing  surface       in  the  form of  a  curved plane  in parallel with its axial direction     and adapted to be rotated at a predetermined speed and a moving member      in which at least its processing surface       is located in parallel with the processing surface       of  the rotary member and adapted to move at a speed substantially identical with a peripheral speed of the rotary member in the same direction as the rotational direction of the rotary member in a gap portion in which a minimum distance is defined between the processing surfaces               of  the rotary member      and moving member    .  While at least the rotary member     is rocked in its  axial  direction and  the  gap portion  lies  on a  substantially identical plane,  a rod-like material      for the dental root canal filling  point  is  fed  in  the  gap  portion between  the processing surfaces             of the rotary member     and moving member     to bring the leading end of the material      in the gap portion in a direction     normal to the axial direction     of the rotary member , and a ratio of a moving speed of the leading end of the material brought in with respect to a moving speed at which the processing surfaces      of the rotary member     and moving member are spaced away from each other being continuously varied such that it conforms to a taper     of the dental root canal filling point thereby making the dental root canal filling point    , which has the desired taper
Patent CA-1308514-C (CA)
Title: Liquid polyisocyanate compositions, a process for their preparation, and their use for the preparation of flexible polyurethane foams
Inventor: GANSEN PETER
IPC: C08G18/48
Filed: 1989-05-23
Granted: 1992-10-06
Abstract: Mo3183 LeA 26,070 LIQUID POLYISOCYANATE COMPOSITIONS, A PROCESS FOR THEIR PREPARATION, AND THEIR USE FOR THE PREPARATION OF FLEXIBLE POLYURETHANE FOAMS   ABSTRACT OF THE DISCLOSURE This invention relates to liquid urethane-modified polyisocyanate compositions obtained by reaction of polyiso-cyanates or polyisocyanate mixtures of the diphenylmethane series containing from about 50 to about 100% by weight diisocyanato-diphenylmethane isomers with substoichiometric quantities of polyether polyol compositions having an average hydroxyl equivalent weight of about 500 to 3000 and an average hydroxyl functionality greater than about 4, optionally followed by mixing the initially formed reaction product with urethane-free poly-isocyanates or polyisocyanate mixtures of the diphenylmethane series containing from about 40 to about 100% by weight diiso-cyanatodiphenylmethane isomers.  This invention also relates to a process for the preparation of such polyisocyanate compositions. The invention further relates to the use of such compositions as the polyisocyanate component in the production of flexible polyurethane foams.     Mo3183
Patent CA-1330742-C (CA)
Inventor: DUPERRAY GILBERT
IPC: C08J7/043
Filed: 1989-05-25
Granted: 1994-07-19
Abstract: Material made of polyvinylidene fluoride surface-treated so as to improve the adhesiveness of an incompatible polymer, characterised in that the surface is covered, in an adhesive manner, with polyvinylidene fluoride powder. This material can adhere to a polymer which is not compatible with polyvinylidene fluoride without any intermediate, used as a binder, which is foreign to the two products to be joined. 
<??>This treated material is obtained by fixing a loose dispersion of polyvinylidene fluoride particles onto a surface of a polyvinylidene fluoride material. This fixing is performed by heat treatment at a temperature of at least 130<o>C.
Patent CA-1336300-C (CA)
Inventor: GRUNZINGER RAYMAND E
IPC: G09F13/16
Filed: 1989-07-31
Granted: 1995-07-11
Abstract: A  curable  polymer  composition  for  use  in providing  a dimensionally  stable  coating comprises  a semi-interpenetrating  polymer  network.     The  semi-interpenetrating  polymer  network  includes  a  reactive polymer component, cross-linking agent, and non-reactive polymer component.   The non-reactive polymer component has  a  molecular  weight  of  about  7,000-30,000,  and preferably about 15,000.   In preferred embodiments, the reactive polymer has a molecular weight of about 30,000-200,000, and preferably about 40,000-60,000.   Spacecoat compositions made with formulations described,  exhibit good long-term stability, and resistance to failure upon embossing of a substrate to which the retroreflective sheeting is applied.
Patent CA-1336472-C (CA)
Title: Process for the preparation of polyurethane foams
Inventor: HAAS PETER
IPC: C08K9/02
Filed: 1989-08-09
Granted: 1995-07-25
Abstract: The present invention relates to a process for the preparation of polyurethane foams comprising reacting polyisocyanates with dispersions of (i) polymer-containing relatively high molecular weight hydroxyl compounds that are prepared by reaction of mono- or polyisocyanates with NH-containing compounds selected from the group consisting of polyamines containing primary and/or secondary amino groups, hydrazines, hydrazides, and alkanolamines in (ii) a compound containing 1 to about 8 primary and/or secondary hydroxyl groups and having a molecular weight of about 400 to about 16,000, in the presence of water and/or organic blowing agents; catalysts; and flameproofing agents comprising an expandable graphite modified by inorganic expandable materials, alone or in combination with inorganic co-flameproofing agents.
Patent CA-1335608-C (CA)
Inventor: BECKLE LEANN M
IPC: H04M3/523
Filed: 1989-09-13
Granted: 1995-05-16
Abstract: This invention relates to a central office (CO) based automatic call distributor (ACD) system arrangement for providing resource control and call event data processing services for a plurality of ACD systems, served by a switching system. The arrangement comprises a switching system, having a control processorcomplex (CPC), a special Event and Control Link (ECL) processor that performs ACD end-user call event data partitioning and ACD end-user resource allocation message screening, and one or more Management Information System (MIS) processors that perform data processing to derive statistics associated with calls to an ACD. The ECL receives, partitions, and transmits call event data messages from the CPC to the MIS processors. The ECL also screens resource allocation request messages, sent by ACD end-users to control the allocation of ACD resources, by checking that the messages match a predetermined format, and by verifying that the end-user making the request has permission to make the requested resource allocation changes. Finally, the ECL interfaces with multiple MIS processors. These MIS processors can be located at the CO, the premises of an enhanced service provider, or on an end-user's premises. Advantageously, end-user call event datapartitioning and resource allocation message screening is performed by the ECL without increasing the complexity of the CPC program, and an ACD end-user has a choice of options of using his own MIS processor, sharing an MIS processor provided by an enhanced service provider, or sharing an MIS processor provided in the switching system.
Patent CA-1322222-C (CA)
Inventor: CUTMORE NICHOLAS G
IPC: G01N22/00
Filed: 1989-09-22
Granted: 1993-09-14
Abstract: ABSTRACT    Methods and apparatus for the determination of the unburnt carbon content of fly ash.  A microwave signal is transmitted through or reflected from a fly ash sample and the attenuation and/or phase shift of the transmitted or reflected signal is determined with respect to the incident signal and used to provide a measure of unburnt carbon content.  The invention is applicable to measurement of fly ash samples taken from a boiler outlet duct or for direct measurement of the unburnt carbon content of fly ash entrained in flue gas.
Patent CA-1328777-C (CA)
Inventor: LATHERS MICHAEL W
IPC: B63B19/18
Filed: 1989-09-29
Granted: 1994-04-26
Abstract: ABSTRACT OF THE DISCLOSURE        A boat comprising a hull, a wall which is supported by the hull, which partially defines a space, and which has therein an opening affording access to the space, and a cover mounted on the wall for pivotal movement relative thereto about a pivot axis extending generally perpendicular to the wall, the cover being movable between an open position wherein the cover substantially uncovers the opening and a closed position wherein the cover substantially covers the opening.