baber/WOPTO huggingface dataset:
Patent CA-1337419-C (CA)
Title: (2-imidazolin-2-yl) fused heteropyridine compounds, intermediates for the preparation of and use of said compounds as herbicidal agents
Inventor: CROSS BARRINGTON
IPC: C07D495/04
Filed: 1986-12-11
Granted: 1995-10-24
Abstract: There are provided novel (2-imidazolin-2-yl) fused heteropyridine compounds, and intermediate compounds for the preparation thereof, and a method for controlling a wide variety of annual  and perennial  plant species therewith.
Patent CA-1293626-C (CA)
Title: Formation of intermetallic and intermetallic-type precursor alloys for subsequent mechanical alloying applications
Inventor: GILMAN PAUL S
IPC: B22F1/00
Filed: 1986-12-12
Granted: 1991-12-31
Abstract: FORMATION OF INTERMETALLIC AND INTERMETALLIC-TYPE     PRECURSOR ALLOYS FOR SUBSEQUENT MECHANICAL             ALLOYING APPLICATIONS            ABSTRACT OF THE DISCLOSURE         A method for forming intermetallic and intermetallic-type precursor alloys for subsequent mechanical alloying applications. Elemental powders Are blended in proportions approximately equal to their respective intermetallic compounds.  Heating of the blent results in the formation of intermetallic compounds whereas lack of heating results in intermetallic-type powder without the intermetallic structure.  The resultant powder is then blended to form a final alloy.  Examples involving aluminum-titanium alloys are discussed.
Patent CA-1310881-C (CA)
Title: Thixotropic aqueous suspensions
Inventor: DIXIT NAGARAJ S
IPC: C11D3/60
Filed: 1987-01-06
Granted: 1992-12-01
Abstract: THIXOTROPIC AQUEOUS SUSPENSIONS     ABSTRACT OF THE DISCLOSURE     Aqueous cleaning compositions containing inorganic builder salts and other functional inorganic salts chlorine bleach and bleach-stable detergent are transformed into thixotropic liquid automatic dishwasher compositions by incorporating in the composition small amounts, of from about 0.03 to 0.5 weight percent, of stearic acid or other long chain fatty acid or an alkali metal salt thereof without any other inorganic colloid-forming clay or other thixotropic thickener.  The compositions remain stable against phase separation for extended periods over a wide range of temperatures.
Patent CA-1286242-C (CA)
Inventor: KATO KOICHI
IPC: C07K1/16
Filed: 1987-03-23
Granted: 1991-07-16
Abstract: MUTUAL SEPARATION OF PROTEINS     Abstract of the Disclosure A protein and a derivative thereof having a methionine residue added at the amino terminus are mutually separated with the utilization of the difference in affinity for hydroxyapatite between them, such as by means of liquid chromatography using a hydroxyapatite column.
Patent CA-1288087-C (CA)
Title: Process and composition for the removal of hydrogen sulfide from gaseous streams
Inventor: JEFFREY GAINES C
IPC: B01D53/14
Filed: 1987-04-28
Granted: 1991-08-27
Abstract: Abstract A process for removing hydrogen sulfide from a gaseous stream in a contact zone by contacting the gaseous stream with an aqueous alkaline scrubbing solution containing a polyvalent metal chelate at a pH of 7 to 10, wherein the polyvalent metal chelate is: in one embodiment, all or substantially all in the reduced or lower valence state in a contact zone and is oxidized to the oxidized or higher valence state in an oxidation zone, so as to convert hydrosulfide and/or sulfide and salts present in the contact zone to sulfur; and in a second embodiment, the aqueous alkaline solution contacting the gaseous stream is a mixture containing higher and lower valence polyvalent metal chelates.
Patent CA-1287162-C (CA)
Title: Method of reformatting color television signals
Inventor: RHODES CHARLES W
IPC: H04N11/02
Filed: 1987-06-04
Granted: 1991-07-30
Abstract: A METHOD OF REFORMATTING COLOR TELEVISION SIGNALS          ABSTRACT OF THE DISCLOSURE A method of reformatting color television signals is disclosed whereby chrominance and luminance components are serially arranged on a line by line basis with minimal compression of the luminance and chrominance components. This reduced compression serial arrangement is made possible by a truncation pro-cess whereby unnecessary information is eliminated from the television signal. Specifically, since a normal television picture tube overscans, the edges or thepicture are never displayed and need not be transmitted or recorded. By eliminating this unnecessary information the signals can be serially combined within the time limits inherent in standard signals.
Patent CA-1307945-C (CA)
Title: Grain moisture tester
Inventor: DYCK GEORGE J
IPC: G01N19/10
Filed: 1987-06-05
Granted: 1992-09-29
Abstract: ABSTRACT OF THE DISCLOSURE     A novel method and apparatus is provided for testing the moisture content of grain.  The invention is predicated on the discovery that the friction between one grain and another grain and/or a solid surface is a function of the moisture content of the grain.  Thus the method is now provided for determining the moisture content of grain comprising the steps of: a) sub-stantially filling a cylindrical cup with the grain; (b) placing a hollow cone whose largest diameter is substantially the same as the diameter of the cylindrical cup, atop the grain; (c) applying a force on the apex of the hollow cone to a maximum predetermined amount to urge the cone into the grain; and (d) measuring the height to which the grain has risen within the hollow cone; the height of grain within the hollow cone being related to the moisture content of the wheat.
Patent CA-1280537-C (CA)
Title: Process for preparing modified poly(alkylene carbonate) polyahls
Inventor: HARRIS ROBERT F
IPC: C09K23/52
Filed: 1987-06-25
Granted: 1991-02-19
Abstract: ABSTRACT         This invention relates to a process for modifying a poly(alkylene carbonate) polyahl to increase its molecular weight.  The process comprises contacting the poly(alkylene carbonate) polyahl with at least one modifier having a plurality of moieties that are reactive with the carbonate and/or active hydrogen moieties of the poly(alkylene carbonate) polyahl at elevated temperature and at a pressure at which at least one compound other than a monoalkylene glycol, which compound is at least as volatile as a tetraethylene glycol, is removed in the gaseous state from the poly(alkylene carbonate) polyahl under conditions such that the molecular weight of the poly(alkylene carbonate) polyahl is increased and the poly(alkylene carbonate) polyahl backbone or side chain is modified by reaction with the modifier.  The modifiers which are suitable for use in the practice of this invention include polyfunctional materials which are reactive with the carbonate and/or active hydrogen moieties of poly(alkylene carbonate) polyahls. Examples of these materials are polyols, polyamines, polyamodes, polymercaptans and polyacids.  These modifiers are employed in an amount of from 5 to 80 percent by weight based on the weight of the poly(alkylene carbonate) polyahl and the modifier.        The process of this invention is useful for producing materials for applications in flexible urethane foams, rigid urethane foams, urethane/urea elastomers and plastics, adhesives, functional fluids and surfactants.
Patent CA-1294944-C (CA)
Inventor: BRUN CLAUDE
IPC: C08F10/00
Filed: 1987-07-07
Granted: 1992-01-28
Abstract: Process for the treatment of a spherical catalyst for the polymerisation of olefins, containing at least one transition metal, a magnesium compound and a halogen, characterised in that ethylene is prepolymerised in the presence of the spherical catalyst, in the presence of a cocatalyst chosen from alkylaluminiums, at least partially in suspension, to a degree of prepolymerisation adapted to the polymerisation process in which the prepolymer will be subsequently used, a spheroprotector being used in combination with the various components not later than after the prepolymerisation, the accepted formula of the said spheroprotector being:  AlR'mR''nClpHq  in which  0.05 < p </= 1  0    < m < 2.95  0    < n < 2.95  0    </= q </= 1  it being known that m + n + p + q = 3 and R' and R'', which are identical or different, are linear, branched or cyclic hydrocarbon radicals containing from 1 to 14 carbon atoms. The catalyst thus treated conserves its spherical morphology in the subsequent polymerisation of ethylene. It is particularly suited for the manufacture of linear polyethylene powder with spherical morphology.
Patent CA-1289097-C (CA)
Inventor: HAVLIK JAROSLAV J
IPC: C10B53/06
Filed: 1987-08-13
Granted: 1991-09-17
Abstract: ABSTRACT           An apparatus and method for extracting hydrocarbons from tar sands.  Stationary heater plates have a central opening therethrough through which a horizontal axle extends.  Rotors having a central hub and a number of arms are splined on the axle, one closely sandwiched between every two heater plates.  A ring is provided between the heater plates closely outward of the rotor arms.  Sand retaining pockets are defined between adjacent arms of each rotor, the rotor hub, the ring and adjacent heater plates.  Sand is retained in the sand retaining pockets for about one revolution about the axis between feed and removal positions.  While retained in the pockets, the sand is heated and hydrocarbons driven off are collected.
Patent CA-1329620-C (CA)
Inventor: CHANDRARATNA ROSHANTHA A S
IPC: A61K31/07
Filed: 1987-08-24
Granted: 1994-05-17
Abstract: ABSTRACT     Retinoid-like activity is exhibited by compounds of the formula   where n is 0-5 and A is H, lower alkyl, or -COOH or ester or amide thereof, -CH2OH or an ether or ester derivative, or -CHO or an acetal derivative, or a pharmaceutically acceptable salt.
Patent CA-1278906-C (CA)
Inventor: CONVERSE NELSON
IPC: F16F9/12
Filed: 1987-08-25
Granted: 1991-01-15
Abstract: Abstract of the  Disclosure:          A single or opposite direction damper hinge has a casing rotatably enclosing a rotor.  The rotor has a center cylindrical portion  mounting  a  reduced  outwardly  projecting  intermediate portion which in turn outwardly mounts a further reduced stop portion.  The casing has a main inner cylindrical surface which is interrupted by an inwardly projecting reduced engagement portion.          In one embodiment, all of the rotor center, intermediate and stop portions and the casing main inner surface are coaxial.   The casing reduced engagement portion, however, has a larger radius than the outwardly projecting intermediate portion of the rotor and is eccentric to the rotor cuter surfaces and the casing main inner cylindrical surface.  In assembly for operation, the rotor is mounted coaxially in the casing with the exception of the casing  engagement  portion which,  in  this  embodiment,  has the larger radius and is eccentic to the rotor intermediate portion.          The  rotor  intermediate  portion  radially  faces  the  casing engagement portion with the surfaces progressively closing due to the casing engagement portion larger radius and eccentricity, and the  rotor stop portion interfering with the casing engagement portion ultimately abutting through facing steps. Further, the rotor and casing, in a second form, may be somewhat reversed, that is,  the rotor having a smaller radius and eccentricity on the mating  surface  and  the  casing  having  the  concentric  mating surface, the overall result being the same.  Finally, if the hinge is operable in opposite clockwise or counterclockwise directions, both  of  the  casing  and  rotor are  formed  symmetrically with diametrically opposite open and closed positions, and operable the same in either direction.
Patent CA-1322159-C (CA)
Inventor: YING THOMAS K S
IPC: A23K1/165
Filed: 1987-08-27
Granted: 1993-09-14
Abstract: ABSTRACT A growth promotant comprising microgranules having a core consisting of one or more enzymes selected from:      (i)  protein digesting enzymes; (ii)  carbohydrate digesting enzymes; (iii)  fat digesting enzymes; and (iv)  fibre digesting enzymes in an immobilized form; the core being encapsulated within a water soluble film, and coated with an enteric coating comprising an alkali soluble, acid insoluble polymer, or a high molecular weight polymer whose structure is substituted with or contains windows of fatty acid or other material capable of being solubilized by intestinal juices.    A method for increasing animal growth comprising the administration of a growth promoting amount of the growth promotant is also described, as is a method of producing the growth promotant.
Patent CA-1318695-C (CA)
Title: Exercising machine
Inventor: VAN STRAATEN WILLEM J
IPC: A63B21/00
Filed: 1987-09-09
Granted: 1993-06-01
Abstract: ABSTRACT            An exercising machine having a board slidable on a beam has a rope and pulley system by means of which an exerciser sitting on the  board  pulls  himself  up  an  incline.    To  increase  the resistance rubber bands are looped between axles and on the board and the beam respectively.   In other embodiments other  pulley systems are used and a plurality of bands may be used on each side of the machine.
Patent CA-1290505-C (CA)
Title: Patient support appliance
Inventor: HUNT KENNETH W
IPC: A47C27/10
Filed: 1987-09-24
Granted: 1991-10-15
Abstract: ABSTRACT     A patient support appliance is provided having a base which includes an obstruction free surface onto which a plurality of elongated contiguous inflatable air sacs are mounted.  The air sacs which are arranged in groups lengthwise of the appliance extend traversely thereof to provide a supporting surface for supporting a person thereon.  A blower which provides pressurized air to the sacs is included and supported  from the base or from a support frame for the base.  A main air supply conduit provides a path for feeding the pressurized air from the blower to a distribution chamber.  From the distribution chamber, the air is channeled to the groups of sacs via a plurality of air supply conduits.  A pressure regulating means is included and regulates the pressure of air supplied to the groups of sacs from the distribution chamnber.  Also, a means associated with the chamber for causing the air to be expelled from the appliance is provided to allow the air sacs to be deflated rapidly.
Patent CA-1336748-C (CA)
Title: Reactive resins useful for precious metal recovery
Inventor: HARRIS WILLIAM I
IPC: C22B11/00
Filed: 1987-11-16
Granted: 1995-08-22
Abstract: An improved method for the recovery of precious metals is disclosed.  By this process precious metals in the form of anionic complexes are contacted with a weak-base anion exchange resin, capable of complexing with the anionic complex, containing weak-base functionalities derived from linear or cyclic polyaminoalkylene amines which have more than 1 amine moiety and at least 3 carbon atoms in a 1,X-alkylene moiety or moieties separating at least 1 amine moiety from a second amine moiety (i.e., X is an integer greater than 2).  The method of the invention allows treating precious metal-containing materials at a higher pH and with improved selectivity than conventional weak-base ion exchange resins. Additionally, the method provides resins that may be regenerated by elution with caustic, for example.
Patent CA-1288159-C (CA)
Title: Drive network for an ultrasonic probe
Inventor: CHOPERENA ALFREDO M
IPC: A61B8/00
Filed: 1987-12-03
Granted: 1991-08-27
Abstract: TITLE DRIVE NETWORK FOR AN ULTRASONIC PROBE     ABSTRACT OF THE INVENTION        A drive network for an ultrasonic probe includes a network operative to apply a pulse to a feedback terminal of a phase comparator substantially simultaneously with the application to the probe of an excitation signal from a source at a predetermined frequency.  This insures that at the start-up of the drive network the frequency of the feedback signal to the phase comparator leads the excitation signal also being applied thereto, to cause the excitation signal from the source to increase toward the resonant frequency of the probe, thereby to search for the resonant frequency of the probe.
Patent CA-1313178-C (CA)
Title: Process for the carbonylation of olefinically unsaturated compounds with a palladium catalyst
Inventor: DRENT EIT
IPC: C07C51/14
Filed: 1987-12-11
Granted: 1993-01-26
Abstract: ABSTRACT            Process for the carbonylation of olefinically unsaturated compounds with a palladium catalyst.            Process for the carbonylation of olefinically unsaturated compounds with carbon monoxide in the presence of a hydroxyl-group-containing compound, a palladium catalyst, an organic phosphine, an acid with a pKa value < 2, with the exception of halogen acids and carboxylic acids, as promoter, and a catalyst stabilizer according to formulae II and III as specified and catalyst systems used in said process.
Patent CA-1319145-C (CA)
Title: Substituted 3-piperidinamines or 3-azepinamines, the preparation thereof and their applications in therapy
Inventor: CARLIER PATRICK
IPC: C07D211/56
Filed: 1987-12-22
Granted: 1993-06-15
Abstract: A B S T R A C T          "New substituted 3-piperidinamines or 3-azepinamines, the preparation thereof and their applications in therapy"                      Compounds of formula:       in which R and R' each denote an alkyl or cycloalkyl radical having 1 to 7 carbon atoms; X denotes - 0 - or H2; and Y and Z denote hydrogen or one or more radicals chosen from halogeno, hydroxy, straight or branched alkyl having 1 to 6 carbon atoms, alkoxy having 1 to 6 carbon atoms, trifluoromethyl or methylenedioxy; n being able to assume the values 2 or 3; and their pharmaceutically acceptable salts.        Application as a cardiovascular medicinal product.
Patent CA-1286741-C (CA)
Title: Cutting/clamping sleeve contact
Inventor: GERKE DIETER
IPC: H01R43/16
Filed: 1988-03-01
Granted: 1991-07-23
Abstract: ABSTRACT OF THE DISCLOSURE            A cutting/clamping sleeve contact is disclosed for contacting a cable wire laterally to the sleeve axis. The sleeve contact is provided with at least one clamping slot  at  the periphery  of  the sleeve and with a cutting/clamping contact in the interior of the sleeve, In order to provide a one-piece sleeve contact suitable for contacting cable wires of varying diameters and stranded conductors, wall pieces are cut free at the wall of the sleeve, which is made of metal, and are bent into the interior of the sleeve as contact legs for forming the cutting/clamping contact.
Patent CA-1310860-C (CA)
Inventor: NORMAN THOMAS J JR
IPC: B41J33/44
Filed: 1988-03-01
Granted: 1992-12-01
Abstract: "RIBBON CONTROL MECHANISM"          Abstract A ribbon control mechanism for a serial encoding device is  provided  to  conserve  the  usage  of  single-strike  ribbon consumed  during  printing.    The  mechanism  includes  a  ribbon transport  mechanism  and  means  for  signaling  the  transport mechanism to reverse the ribbon between documents to position the ribbon for printing in unspent ribbon.
Patent CA-1319258-C (CA)
Inventor: PRESBY HERMAN M
IPC: C03B37/012
Filed: 1988-08-03
Granted: 1993-06-22
Abstract: Abstract of the Disclosure An apparatus and method are disclosed for fabricating an expanded beam cylindrically terminated optical fiber taper from a reduced diameter preform rod. The present invention comprises uniformly heating the circumference of a predetermined portion at an intermediate point of the preform rod to a predetermined temperature and then uniformly pulling the preform rod while continuing to heat additional material of the preform rod to produce a pair of expanded beam cylindrically terminated optical fiber tapers connected by a predetermined length cylindrical central section of standard optical fiber having a uniform diameter less than that of the original preform rod. The cylindrical central section is then severed midway between the two expanded beam optical fiber tapers to form two separate expanded beam cylindrically terminated optical fiber tapers comprised of (1) a predetermined length cylindrical end section of uniform diameter equal to that of the originalpreform rod; (2) a reduced diameter optical fiber end section suitable for splicing onto an optical fiber of similar dimensions; and (3) a tapered section,connecting the cylindrical end section to the optical fiber end section, having a gradually decreasing diameter that will avoid mode conversion of a lightwave signal propagating therethrough.
Patent CA-1310591-C (CA)
Inventor: WAGNER WAYNE M
IPC: F01N3/027
Filed: 1988-08-11
Granted: 1992-11-24
Abstract: Abstract of the Disclosure Muffler apparatus for reducing both sound and par-ticulates from exhaust gases from an engine.  The apparatus includes resonating chambers, flow distribution means and a cellular ceramic core filter module.   Filter regeneration mechanism includes a heating element for heating the carbon on  the  inlet end of  the ceramic core to combustion tem-perature.   Particulate  ignition  resulting  in  regeneration occurs when combustion air is provided; in alternate embodi-ments,  combustion  air  first flows  through a  preheater system.  A processor unit with particular logic controls the apparatus.
Patent CA-1329682-C (CA)
Inventor: LEWIS SHELDON N
IPC: C11D3/28
Filed: 1988-08-25
Granted: 1994-05-24
Abstract: ABSTRACT OF THE DISCLOSURE            A stable, isotropic fabric softening composition includes relatively high levels of a 2-n-alkyl-4-isothiazoline-3-one to provide immediate and residual mildewstatic activity on fabrics treated therewith.  The composition also includes a quaternary ammonium or imidazolinium fabric softener having an iodine value of between about 20 and 70, an organic solvent matrix and optionally, a fatty acid soap, surfactant and pH adjusting agent, all to the promote the isotropic quality of the composition.
Patent CA-1300273-C (CA)
Title: Method for providing a dynamic tutorial display
Inventor: ESTES MARK W
IPC: G09B19/00
Filed: 1988-09-15
Granted: 1992-05-05
Abstract: ABSTRACT OF THE DISCLOSURE      A method is disclosed for providing a dynamic tutorial display for assisting a computer operator in the utilization of a selected interactive software application.  A tutorial processing program is provided and is resident between the operating  system  and  a  selected  interactive  software application, acting as a filter therebetween.  A sequence of desired  operator  inputs,  such  as  keystrokes  or  mouse movements, is recorded by the tutorial processing program along with an indication of the elapsed time between each input.  In response to an operator request for assistance, the tutorial processing program couples each recorded input in  a  selected  sequence  to  the  interactive  software application,  in sequence  in accordance with the recorded elapsed  time  indications.   In  practice,  the  software application will then respond in a manner identical to the response  generated by  human  inputs.   In  a  preferred embodiment of the present invention, the tutorial processing program also includes a provision for recording a plurality of  textual  or  audible  descriptive  elements  within  the sequence of operator inputs.
Patent CA-1325932-C (CA)
Inventor: SUNDHEIMER PATRICK
IPC: F22B37/22
Filed: 1988-09-23
Granted: 1994-01-11
Abstract: ABSTRACT OF THE DISCLOSURE:            A device preventing thermal stratification in a supply pipe is disclosed.  Cold water introduced with a low flow rate into a duct filled with hot water circulates in the bottom thereof and accumulates at its end.  It is only discharged at the end of the distributor where its pressure is highest. The immiscible hot water is located elsewhere and high thermal stresses appear on the distributor at the interface between two layers.  The distributing tubes or the actual duct are provided with cuts favouring the upstream flow. This device is very suitable for steam generators of nuclear power plants.