baber/WOPTO huggingface dataset:
Patent CA-2035580-A1 (CA)
Title: Styrenic copolymer/polyacetal/thermoplastic polyurethane or elastomeric copolyester blend compositions
Inventor: GUEST MARTIN J
IPC: C08L59/00
Filed: 1991-02-01
Abstract: ABSTRACT       Thermoplastic polymer blends comprising a monovinylidene aromatic copolymer, an acetal polymer and an elastomeric material such as a thermoplastic polyurethane or an elastomeric copolyester have good processability and a beneficial combination of physical and chemical properties including thermal/dimensional stability, impact resistance, chemical resistance and creep resistance.  Said polymer blends are suitable for use in the preparation of a variety of molded utilitarian articles having good appearance and paintability.
Patent CA-2035916-A1 (CA)
Title: Vial locator and sensor
Inventor: PENNATTO SAMSON
IPC: G01N30/24
Filed: 1991-02-07
Abstract: An analytical instrument sample vial positioning and sensor device. A radius or cone-shaped body portion extending below a surface contacts a loosely held sample vial having a flexible septum thereon. The shaped body portion is biased downward resulting in the relative movement between the sample vial and shaped body portion tending to center the flexible septum under the shaped body. A longitudinal bore extending through the shaped body permits the insertion of a syringe needle for the removal of a sample to be analyzed.      The pre-positioning of the sample vial prevents syringe needles from being bent or broken due to inappropriate alignment with respect to the septum. A sensor is incorporated with the shaped body to detect the presence or absence of a sample vial.
Patent CA-2038809-A1 (CA)
Title: Narrow gap plate mounting apparatus and method
Inventor: GEVIS ALBERT
IPC: B41F27/12
Filed: 1991-03-21
Abstract: A narrow gap printing plate mounting apparatus includes a printing plate (10) with a substantially curved, preferably involute tail member (24) at one end of a printing plate body (12) which is received through a narrow mating gap (20) in a rotary cylinder (18) and held against correspondingly curved cavity wall (28) by means of a resilient locking member (30). The locking member (30) presses the curved tail member (24) against the curved wall (28) in a direction which is substantially normal thereto to reduce longitudinal strain on the tall member (24).  Another tail member (22) is inserted at the leading edge (20A) of the gap (20) while the curved  tail member (24) presses against the lagging edge (20B) of the slot (24). When removing the plate from the cylinder (18), the curved tail member (24) at the lagging edge (20B) is removed first.
Patent CA-2039531-A1 (CA)
Title: Process for removing carbon-containing or nitrogen oxide-containing pollutants in flue gases
Inventor: DRECHSLER DANIEL
IPC: B01D53/86
Filed: 1991-04-02
Abstract: Abstract of the Disclosure A process for the removal of carbon-containing or nitrogen oxide-containing pollutants in low-dust flue gases by catalytic reduction, which is characterized in that a reducing agent is injected through nozzle(s) into the intermediate space of one stage of the economizer, said reducing agent is mixed with the low-dust flue gas in the tube bundles of the economizer, and the resultant reduction  flue  gas  mixture  passes  catalyst  layers  located downstream of the economizer at a local velocity greater than 6.5 m/s.
Patent CA-2039539-A1 (CA)
Inventor: GLENAT HENRI
IPC: G01R33/24
Filed: 1991-04-02
Abstract: A nuclear magnetic resonance probe incorporating at least two bottles with radical solutions, one having a positive nuclear polarization and the other a negative nuclear polarization, at least one high frequency coaxial resonator around each bottle respectively, an assembly of low frequency exciting-sampling coils. The coil assemblies are interconnected and connected to an amplifier in a loop oscillator connection. The probe comprises two blocks having a symmetry of revolution with respect to one axis and a symmetry with respect to a plane perpendicular to the axis of revolution. Each block incorporates at least one bottle having a shape of revolution about the axis and is symmetrical with respect to the plane of symmetry and a coaxial resonator having the same symmetries as the bottle.    Each block contains the bottle, a double frequency coil of revolution about the axis and completely surrounds the resonator and the bottle. Each block is formed from two coils of revolution facing one another on either side of the plane of symmetry of the block. The two coils are interconnected.
Patent CA-2043606-A1 (CA)
Title: Itch-resistant wool blend garments
Inventor: BIRENZWEIG JOSHUA
IPC: A43B17/00
Filed: 1991-06-05
Abstract: RBP File No. 6196-002 ABSTRACT OF THE DISCLOSURE           A  combination  of  yarns  and  a  method  of construction is provided for constructing itch-resistant wool blend garments, including undergarments and hosiery. The combination of yarns comprises a wool yarn and a cotton yarn where the cotton yarn may be twisted about a spandex core. The method provides that the wool yarn is knitted to the cotton yarn by means of a plating knitting method to form a fabric having first and second surfaces, the first surface being substantially covered with wool and the second surface being substantially covered with cotton. Itch-resistant wool blend garments are produced wherein the outer surface of the garment is substantially covered with wool and the inner surface of the garment is substantially covered with cotton.
Patent CA-2043952-A1 (CA)
Title: Liquid crystal device
Inventor: KAWAGISHI HIDEYUKI
IPC: G02F1/136
Filed: 1991-06-05
Abstract: A liquid crystal device comprising a pair of substrates each having an electrode, and a liquid crystal layer having a chiral smectic phase, provided between the substrates, wherein a first substrate which is one of the substrates comprises; i) a plurality of first electrodes dividedly disposed, the plurality of first electrodes being covered with a monomolecular film or monomolecular built-up film in such a way that the monomolecular film or monomolecular built-up film provided on the first electrodes and between the first electrodes is formed in a continuous film; and ii) a second electrode provided on the monomolecular film or monomolecular built-up film in such a way that an MIM device is formed at the part where the first electrodes, the monomolecular film or monomolecular built-up film and the second electrode overlap in layers.
Patent CA-2048479-A1 (CA)
Title: Removing h2s from a sour gaseous stream
Inventor: BOWMAN DAVID F
IPC: B01D53/77
Filed: 1991-08-06
Abstract: A B S T R A C T     Process for the removal of H2S from a sour gaseous stream comprising contacting the sour gaseous stream in a contacting zone with an aqueous reactant solution, which reactant solution comprises Fe(III), Fe(II) and a nitrogenous organic acid chelating agent, under conditions to convert H2S into sulphur, thereby producing a gaseous stream having a reduced H2S content and a reduced aqueous solution containing solid sulphur, Fe(III), Fe(II) and a nitrogenous organic acid chelating agent; treating reduced aqueous solution to produce a sulphur rich stream, regenerated aqueous solution and an aqueous bleed stream; recycling at least part of the regenerated aqueous solution to the contacting zone for use as aqueous reactant solution; and contacting at least part of the bleed stream with a cation exchange resin yielding an aqueous waste stream.
Patent CA-2050292-A1 (CA)
Title: Push chair/shopping trolley
Inventor: CRISP DAVID J
IPC: B62B9/26
Filed: 1990-03-09
Abstract: A foldable push chair which incorporates a shopping trolley comprises a wheeled frame having front wheels (22) and rear wheels (23), a seat (11) for a child, support means (10) for a good's container (14) and a handle (40) for controlled wheeling of the push chair. The frame is foldable into a collapsed state to reduce the separation between front and rear wheels so that the front/rear dimension of the chair/trolley is reduced. In the collapsed condition of the chair/trolley, the seat (11) of the chair is folded up at the front and the handle (40) is folded down to the rear, an auxiliary handle (16) being provided for controlled wheeling of the collapsed chair/trolley.
Patent CA-2053109-A1 (CA)
Inventor: JOB ROBERT C
IPC: C08F210/06
Filed: 1991-10-09
Abstract: An improved high activity olefin polymerization catalyst which can be used to produce .alpha.-olefin polymers having good properties and a relatively narrow particle size distribution comprises an organoaluminum cocatalyst, a selectivity control agent and a novel olefin polymerization procatalyst which is obtainable by contacting a tetravalent titanium halide, a halohydrocarbon, an electron donor and a solid procatalyst precursor obtainable by heating an adduct of a carbonated magnesium ethoxide and a phenolic compound of enhanced acidity.
Patent CA-2054751-A1 (CA)
Title: Television signal detection apparatus
Inventor: TYSON LAWRENCE
IPC: H04N7/173
Filed: 1990-05-03
Abstract: PCT No. PCT/GB90/00687 Sec. 371 Date Nov. 4, 1991 Sec. 102(e) Date Nov. 4, 1991 PCT Filed May 3, 1990 PCT Pub. No. WO90/13974 PCT Pub. Date Nov. 15, 1990.An apparatus and method for detecting and logging video outputs from a central control unit to one or more television receivers in which a remote unit in or in proximity to the or each television receiver detects by means of a tuned circuit the horizontal synchronization signal frequency of the receiver; the detected signal is modulated and fed to the central control unit where it is demodulated to produce a signal corresponding to the phase of the receiver horizontal synchronization signal characteristic of that receiver, the phase of the time synchronization signal of each of a plurality of video players is compared with the phase of the fed receiver signal to obtain a match; and a microprocessor logs the matched signals.
Patent CA-2055871-A1 (CA)
Title: High impact resistance adhesive compositions
Inventor: DI RUOCCO VITTORIO
IPC: C08F255/02
Filed: 1991-11-20
Abstract: "HIGH IMPACT  RESISTANCE  ADHESIVE  COMPOSITIONS"     Abstract Acrylic adhesive compositions comprising.          (a) one or more polymerizable acrylic monomers;            (b) a free radical generator optionally combined with an activator, and (c) a synergic rubber mix consisting of:     1. a diene-nitrile rubber  and 2. chlorosulphonated polyethylene.
Patent CA-2056053-A1 (CA)
Title: Square wave excitation of a transducer
Inventor: TALMADGE PAUL C
IPC: G01L1/22
Filed: 1991-11-22
Abstract: A device far measuring a physical quantity includes a transducer and circuitry far exciting the transducer with an a.c. square wave. The excitation circuitry includes two amplifiers, a switch and a resistor network. The excitation circuitry provides a plus one gain when the switch is in one position and a minus one gain when the switch is in a second position. A similar circuit synchronously demodulates the transducer's output signal. Another similar circuit synchronously demodulates the transducer excitation signal and provides a reference voltage to an analog-to-digital converter (ADC). The ADC converts the demodulated transducer output signal into a binary word. Both demodulated signals are filtered before application to the ADC. An example of the device is a force-measuring device such as a weighing scale incorporating a strain gauge load cell.
Patent CA-2058539-A1 (CA)
Title: Shipping platform apparatus
Inventor: CREWS MITCHELL S
IPC: B65D19/34
Filed: 1991-12-24
Abstract: A substantially recyclable shipping platform apparatus for supporting and transporting loads, in which the apparatus is easily disposable and recyclable after use. A plurality of substantially elongated pylons are attached between a top platform and a bottom panel to increase the integrity of the apparatus to more effectively support the load material placed upon the platform. The bottom panel is constructed with articulateable flaps which are used to secure the pylons to the bottom panel. Each of these flaps are configured to maximize contact with, and stability of, the pylons, and are further configured to correspond to the specific shape of the interior region of each respective pylon they are attached to. A tear strip may be embedded within the platform and/or bottom panel for purposes of reducing the overall size of the apparatus when disposal is desired.
Patent CA-2058546-A1 (CA)
Title: Process for producing alkoxysilane-terminated polyethers
Inventor: TIMBERLAKE JOHN F
IPC: C08G65/336
Filed: 1991-12-24
Abstract: ABSTRACT A process for producing polyethers having alkoxysilane-terminated end groups which comprises coupling together high molecular weight allyl-started monols and thereafter performing a hydrosilation reaction.
Patent CA-2059838-A1 (CA)
Title: Olefin polymerization and copolymerization process
Inventor: COHEN STEVEN A
IPC: C08F4/654
Filed: 1992-01-22
Abstract: A multistage method for making a homopolymer or copolymer of an alpha-olefin having increased stiffness and broadened molecular weight distribution.
Patent CA-2064645-A1 (CA)
Title: Method for preparing uniform size ion-exchange resin particles
Inventor: STROM ROBERT M
IPC: C08J3/00
Filed: 1992-04-01
Abstract: ABSTRACT       A process is provided for preparing ion-exchange resin particles of relatively uniform size by partial functionalization of non-uniform copolymer beads with ion-exchange groups.  The non-uniform copolymer beads are preferably functionalized in a manner such that the ion-exchange groups are substituted at available sites which are most accessible to diffusion by functionalizing agents.  Due to the size difference between individual copolymer particles, a greater proportion of available sites is functionalized in a small particle when compared to that of a large particle.  Due to the greater proportion of ion-exchange groups present in a small particle, the small particle swells relatively more than a larger particle.  The result is effectively a narrowing of the size distribution for the partially functionalized resin particles.  The relatively uniform resin particles obtained by the process have performance advantages, such as reduced pressure drops, improved exchange kinetics, rinse efficiencies, and separation efficiencies when compared to fully functionalized ion-exchange resins that are non-uniform in particle size.     35,868-F
Patent CA-2065490-A1 (CA)
Title: Container
Inventor: SINCLAIR GUY M
IPC: B05B7/24
Filed: 1992-04-07
Abstract: J 7024 (R) ABSTRACT            An aerosol dispensing apparatus for dispensing a liquid under pressure as an aerosol without the use of a pre-dosed propellant, comprising a container for storing the liquid to be sprayed, spray means, and means for manually introducing atmospheric air into the apparatus to generate a positive presoure therein, the spray means having a nozzle by which the fluid may be dispensed and a feeder pipe to supply the nozzle with fluid to be sprayed, characterized in that the apparatus additionally comprises an intermediate spacer collar which supports the spray means, and to which the container may be attached.
Patent CA-2066962-A1 (CA)
Title: Externally adjustable flow restriction control for poppet valves
Inventor: FREUND MELVIN A
IPC: F16K1/52
Filed: 1992-04-23
Abstract: ABSTRACT     An externally adjustable restriction control assembly for a poppet valve.  The restriction control assembly is actuated through rotation of the valve stem.  Upon rotation of the valve stem, a restriction control disc, threadably mounted to the valve stem guide, is moved toward or away from a seat provided within the housing.  Movement of the restriction control disc thereby adjusts the effective cross-sectional flow area through the valve.
Patent CA-2068720-A1 (CA)
Title: Water spray systems
Inventor: FARQUHAR ROBERT L
IPC: A62C31/02
Filed: 1990-11-16
Abstract: A water spray system (figure 1) for an aircraft has a plurality of spray outlet nozzles (6', 6'', 6''') which are distributed throughout the passenger cabin of the aircraft and are coupled to a water storage vessel (1). A pyrotechnic gas source (5) is used to pressurize the water stored in vessel (1). The system may comprise a plurality of sub-systems each being associated with a respective section of the aircraft cabin and being operable independently of the others. The pyrotechnic gas source (5) can be actuated by a control signal (IO) produced by a control unit (8) in response to different input signals, and the or each storage vessel is fitted with an exhaust valve (11) to vent the stored water if the system is actuated inadvertently. The spray outlet nozzles may operate in different modes and may be directed to increase the residence time of water droplets in an upper part U of the cabin.  The system may be coupled to an external supply system by means of a remotely launched projectile.
Patent CA-2069422-A1 (CA)
Title: A starch-derived, food-grade, insoluble bulking agent
Inventor: IYENGAR RADHA
IPC: A23L33/20
Filed: 1990-11-21
Abstract: A method for preparing a food grade, insoluble bulking agent from starch is disclosed. The method involves a retrograda-tion process followed by enzymatic hydrolysis to form a modified starch product which can be used as a filler or as a bulking or texturizing agent in low-fat food formulations.
Patent CA-2071108-A1 (CA)
Inventor: BUIJS WIM
IPC: C07C39/04
Filed: 1992-06-12
Abstract: (15)                  AE 7175 A B S T R A C T     Process for the preparation of a phenol by an oxidative decarboxylation in the liquid phase of a corresponding arylcarboxylic acid in the presence of a Cu(I)-containing catalyst, characterized in that an oxidative decarboxylation is carried out at a temperature between 191-270°C, in the presence of water, with such an amount of oxygen being added that so much copper remains present as Cu(I) that a selectivity to phenol is obtained of more than 92% measured at 1 bar, and phenol is separated off.         The oxidative decarboxylation is preferably carried out by: a)  oxidation of the catalyst at a temperature of 191-240°C     for at most 20 minutes, with such an amount of oxygen being added that at least 0.04 wt.% copper remains present as Cu(I); b)  reaction of the oxidized catalyst of step a) and formation of the phenol in the absence of oxygen, in the presence of water, at a temperature of 210-270°C.
Patent CA-2071274-A1 (CA)
Title: Method and apparatus for conveying away flat products supplied in a scale flow and in particular printed products
Inventor: REIST WALTER
IPC: B41F21/00
Filed: 1992-06-15
Abstract: METHOD AND APPARATUS FOR CONVEYING AWAY FLAT PRODUCTS      SUPPLIED IN A SCALE FLOW AND IN   PARTICULAR PRINTED PRODUCTS     ABSTRACT OF THE DISCLOSURE            The method for transforming a scale flow of printed products into a delivery flow of said printed products in forced formation, e.g. a delivery flow in which each printed product is guided by a gripper, essentially comprises four method steps, namely a first deflection or reversal (1) through which a scale flow (B) with downwardly directed leading printed product edges is formed, a timing step (2) in which the spacings between the printed products are made uniform, increased, decreased and/or differentiated, a second deflection or reversal (3), in which a scale flow (D) with upwardly directed leading edges is produced and an acceptance (4), in which the printed products are individually or groupwise taken over by grippers.  The first and/or second deflection or reversal can be omitted.  The apparatus for performing the method essentially comprises a supply belt conveyor (5) and a conveying away means (6), between which are arranged a timing element (21) and at least one intermediate belt conveyor.  The timing element (21) has a stationary stop element (21.1), which individually or groupwise stops the printed products, and a movable conveyor element (21.2), which raises the printed products in timed individual or groupwise manner over the stop element (21.1).
Patent CA-2072615-A1 (CA)
Title: Method and apparatus for cleaning pipe
Inventor: ROSE JAMES L
IPC: B24C3/32
Filed: 1991-01-25
Abstract: A self-propelled carriage (28) has a housing (30) comprised of a center body section (51) and a pair of side sections (52) hinged (54) to the body section (51). Side sections (52) may be swung to an open "clamshell" like position for lowering of the carriage (28) onto the pipe (10) for travel along the pipe (10). Nozzles (72) for the discharge of abrasive particles, such as sand, are mounted for oscillating movement in a predetermined stroke to cover a predetermined outer surface area of the pipe (10) for cleaning the pipe and for providing a rough finish for the application of a coating.
Patent CA-2073504-A1 (CA)
Title: Device and method for conducting immunoassays
Inventor: COLE FRANCIS X
IPC: G01N33/53
Filed: 1991-02-07
Abstract: An immunoassay method comprising applying an aqueous solution containing the analyte antigen to one end of a multi-zoned test strip device (10) such that the solution moves along the strip (10) by capillary action. The zones are arranged so that the solution (a) first contacts and reconstitutes dry, diffusible labelled component comprising colloidal gold conjugated to an antib-ody specific for said analyte antigen (20) and then (b) contacts and reconstitutes dry, diffusible biotinylated second antibody spe-cific for said analyte antigen (18) such that a diffusible, dispersed sandwich reaction product forms. The reaction product diffuses along the strip (10) with the solution and into a zone containing capture component consisting of a latex and avidin complex (22) which avidin collects the reaction product by means of reaction with its biotin moiety. Thus, gold particles are collected and con-centrated in the detection zone (22) for visual determination.
Patent CA-2073891-A1 (CA)
Title: Chain container
Inventor: HAYES RICHARD D
IPC: B65D85/676
Filed: 1992-07-15
Abstract: ABSTRACT A unitary container for storing and dispensing chain includes a box-shaped chain holder portion having a continuous top edge adapted for interlocking receipt of a selectively removable lid, a bottom wall, and first and second pairs of opposed side walls which extend between and connect the open top edge and the bottom wall.  The container also includes a lid adapted for selectively easily removable attachment to the continuous open top edge of the chain holder position.  The lid has an integral chain dispensing and retaining portion to permit access to and removal from the chain holder portion through the lid of desired lengths of chain, and is formed so as to deter chain removed from the chain holder from unintentionally slipping thereinto.
Patent CA-2075971-A1 (CA)
Title: Elastomeric composite fabric
Inventor: DAILEY MARLENE
IPC: B32B27/12
Filed: 1991-02-19
Abstract: Elastomeric composite fabrics are described which have a layered construction and are made of a microporous polymeric membrane, a water vapor permeable polymer, and an elastomeric thermoplastic nonwoven material. The elastomeric composite fabrics provide barrier properties with water vapor permeability and find utility in articles of wearing apparel and other articles which conform about another object.
Patent CA-2076952-A1 (CA)
Inventor: WU SZU-HSIEN
IPC: E04D3/365
Filed: 1992-08-26
Abstract: A  waterproof  screw  fastener  includes  a  metallic threaded shank which has a top end that is  formed with an outwardly extending flat annular flange and two projections extending upwardly and outwardly from a top face of the flat annular flange.  A plastic head completely encapsulates the flat annular flange and the projections.   The plastic head has an upper head body, which has a lower end, and a lower skirt part, which extends radially, outwardly and then downwardly from the lower end of the upper head body.  The lower skirt part has a rounded top bearing face and a bottom face which is rounded and concave  to  confine  a  recess  about  the  threaded  shank.   A resilient sealing washer is sleeved onto the threaded shank and is received in the recess of the lower skirt part.