baber/WOPTO huggingface dataset:
Patent CA-2014961-A1 (CA)
Title: Ice detecting apparatus and methods
Inventor: ANDRESEN RICHARD P
IPC: G01N29/11
Filed: 1990-04-19
Abstract: ABSTRACT OF THE DISCLOSURE            For detecting the presence of ice on an exposed surface such as an air foil surface of an aircraft, a sensor has a   hollow   body   portion   including   a   piezoelectric transducer  which  is  energised  to  generate  ultrasonic pulses which are directed internally of the sensor to an end surface thereof which is co-planar with the air foil surface.    The   pulses   are  reflected  back  to   the transducer.  In addition, the pulses are reflected back to the transducer by a shoulder in the sensor body and acting  as  a  reference surface.   The  resultant  signals produced by the transducer from the reflected pulses are processed so as to compare the amplitude of each pulse reflected by the end with the amplitude of each pulse reflected by the reference surface to produce an output indicating the presence and the thickness of ice on the air foil.
Patent CA-2016369-A1 (CA)
Title: Method for manufacturing fibre-reinforced material
Inventor: UNGER MICHAEL
IPC: B29B15/12
Filed: 1990-05-09
Abstract: The invention is concerned with method for impregnating fibre bundles with molten or liquid resin (24,29) in the course of manufacturing a fibre-reinforced material (which material comprises fibre bundle or bundled group of fibres, wherein each fibre is surrounded by matrix resin) by impregnating a continuous web (10,10a) of one or more fibre bundles with molten or liquid resin (24,29) and solidifying said resin by cooling or chemical reaction. Before impregnation, the molten or liquid resin material (29) is subjected to shear forces by causing it to flow between two closely spaced surfaces (26,27) which are in moving relationship into each other.
Patent CA-2016669-A1 (CA)
Title: Process for producing acrylic ester
Inventor: BUNNING DONALD L
IPC: C07C57/07
Filed: 1990-05-14
Abstract: ABSTRACT    A process for producing acrylic ester by the catalytic esterification of a crude liquid stream of enriched acrylic acid recovered by the partial condensation of the reaction gas effluent from the catalytic oxidation of propylene and/or acrolein.  The partial condensation allows a significant proportion of volatile aldehydes and water to pass through the first recovery stage to a second stage for conventional recovery, along with uncondensed acrylic acid vapors and the remainder of the uncondensed reaction gases.   26u.inv/jlc
Patent CA-2020160-A1 (CA)
Title: Method and apparatus for refining the domain structure of electrical steels by local hot deformation and product thereof
Inventor: PRICE LEROY R
IPC: C21D9/46
Filed: 1990-06-29
Abstract: Patent Attorney's Docket No. LB-1483 ABSTRACT OF THE DISCLOSURE         A method is provided for improving the electrical characteristics of grain-oriented silicon steel sheet by heating the steel to temperatures above 1000°F and then deforming grooves to refine the magnetic domains, optionally, post heat treating to form fine recrystallized grains in the vicinity of the hot deformations, preferably using protrusions on a scribing roll as the sheet moves between a scribing roll and a back-up anvil roll at deforming pressures range up to 120,000 pounds per square inch.
Patent CA-2021122-A1 (CA)
IPC: H01R24/00
Filed: 1990-07-13
Abstract: ABSTRACT: ELECTRICAL CONNECTOR FOR CONNECTING HEAT SEAL FILM TO A PRINTED WIRING BOARD:         An electrical connector comprises a housing having a first groove for receiving a heat seal film therein and a second groove for receiving therein a printed wiring board.  A spring contact is supported by the housing for electrically connecting an electrode on the film received in the first groove and an electrode on the substrate received in the second groove.  The first groove is preferably formed to have a wider opening at its entrance  to permit  the  heat  seal  film to  be wedged  into engagement with the spring contact in the first groove.   An actuator is slidably supported in the housing for bringing the spring contact into contact with the electrode on the substrate and for holding the substrate in the housing.
Patent CA-2025922-A1 (CA)
Title: Air operated vacuum pump
Inventor: DIVITO ANTHONY M
IPC: F04F1/02
Filed: 1990-09-21
Abstract: ABSTRACT OF THE DISCLOSURE           A compressed air-actuated pump includes a venturi nozzle to create a vacuum condition within a fluid-tight pump body to pump in a liquid or slurry.  When a given level of liquid is pumped in,  a control circuit closes a flexible sleeve of a pneumatically actuated pinch valve positioned in an exhaust passageway of the venturi nozzle.  Upon closing of the pinch valve, the exhaust stream from the venturi nozzle is  diverted  into the  pump body  to  create  a pressurized condition therein whereby the liquid or slurry previously accumulated therein is pumped out.  The pump also includes a pair  of  variable  flow  control  valves  for  independently adjusting  the  flow  rates  of  compressed  air  through  the venturi nozzle in the vacuum, pump-in and in the pressurized, pump-out cycles.   Solid state opto-electronic liquid level sensors  or  appropriate  pneumatic,  electric  or  electro-pneumatic timing devices are employed to signal the opening and closing of the pinch valve.  The flexible sleeve of the pinch valve,  as well as all other parts in the pump are constructed of chemically-resistant materials to permit the pumping  of  erosive,  corrosive  and  abrasive  liquids  and slurries.
Patent CA-2026378-A1 (CA)
Inventor: FRYER CLAYTON D
IPC: E21B47/04
Filed: 1990-09-27
Abstract: A method for detecting the presence of a liquid level at a monitor point along the depth of a borehole utilizes a diaphragm pressure switch for sensing the pressure of a captive air column in a measurement tube extending from the pressure switch to a predetermined point below the monitor point.   In use a rising liquid level in the borehole seals an open lower end of the measurement tube from the earth atmosphere and allows the rising liquid level to compress the captive air column.  In a preferred embodiment a visual signal is activated by the pressure switch when the liquid level in the borehole reaches the monitor point.
Patent CA-2030669-A1 (CA)
Inventor: ALFORD RAYMOND E
IPC: C25B11/06
Filed: 1990-11-22
Abstract: Metal electrodes provided with a coating consisting essentially of a mixed oxide compound of (i) a compound of the general formula ABO4, having a structure of the rutile-type, where A is an element in the trivalent state selected from the group consisting of Al, Rh and Cr, and B is an element in the pentavalent state selected from the group consisting of Sb and Ta, (ii) RuO2 and (iii) TiO2; wherein the mole fraction of ABO4 is between 0.01 and 0.42, the mole fraction of RuO2 is between 0.03 and 0.42, and the mole fraction of TiO2 is between 0.55 and 0.96.  The electrodes have low precious metal content, provide improved durability and improved current efficiency-anodic overvoltage performance.  They are used in the electrolysis of chloride containing liquors in the production of, for example, chlorine and more particularly, chlorate.
Patent CA-2031366-A1 (CA)
Title: Treating fruit materials
Inventor: BOUTANG JEROME J
IPC: A23L19/00
Filed: 1990-12-03
Abstract: Fruit material is air-dried at material temperatures not exceeding 50 DEG C and preferably not exceeding 40 DEG C until 20 to 60% of its initial weight is evaporated and thereafter exposed to an aqueous medium containing one or more sugars and then preferably frozen. Fruit material, in particular frozen, having 40 to 80% of its original weight and containing some added sugar, preferably mono saccharide.
Patent CA-2031795-A1 (CA)
Title: Method of and apparatus for water jet cleaning
Inventor: WALENDOWSKI STANLEY J
IPC: B24C5/04
Filed: 1990-12-07
Abstract: METHOD OF AND APPARATUS FOR WATER JET CLEANING                     ABSTRACT A method and apparatus for a high pressure water jet automatic cleaning station  for dollies  or  the  like disclosed comprises a plurality of high pressure nozzles (152)  displaced radially and also being rotatable about independent axes A.  The independent axes A are arranged in radially spaced parallel relation about a central axis C.  A support (158) mounts the nozzles (152) for rotation about the independent axes A and also mounts the independent axes A for revolution about the central axis C.  A drive means (160) revolves the independent axes A whereby the nozzles (152) provide jets of water whose impingement patterns create a uniform dense water cleaning spray.  A programmer controls movement of the nozzles (152) to cause the jets to impinge on preselected areas of the dollies.
Patent CA-2032130-A1 (CA)
Title: Transparent resin composition
Inventor: YASUMOTO HIROSHIGE
IPC: C08K3/34
Filed: 1990-12-12
Abstract: A B S T R A C T       A transparent resin composition essentially consisting of a therplastic resin, preferably a high nitril resin having a high water absorption rate, and 1% to 5% by weight of far infrared radiative ceramics.     The resin composition is suited for the production of vessels for packing water or beverages.
Patent CA-2036827-A1 (CA)
Title: Process for preparing dimethynaphthalene
Inventor: GREEN LARRY A
IPC: C07C2/70
Filed: 1991-02-21
Abstract: ABSTRACT    In a process for producing 2,6-dimethylnaphthalene an alkylaromatic compound, e.g. toluene, is alkylated with a C5 olefin alkylating agent, e.g. 1-pentene, in the presence of a zeolite alkylation catalyst having a Constraint Index not greater than 5, and the resulting alkylate is dehydrocyclized with a dehydrocyclization catalyst to generate a dimethylnaphthalene product rich in the 2,6-isomer.
Patent CA-2038023-A1 (CA)
Title: Linear viscoelastic aqueous liquid detergent compositions, especially for automatic dishwashers, of improved high temperature stability
Inventor: DIXIT NAGARAJ
IPC: C11D3/395
Filed: 1991-03-12
Abstract: LINEAR VISCOELASTIC AQUEOUS LIQUID DETERGENT COMPOSITION, ESPECIALLY FOR AUTOMATIC DISHWASHERS, OF IMPROVED HIGH TEMPERATURE STABILITY              ABSTRACT OF THE DISCLOSURE         Automatic dishwasher detergent composition is formulated at a linear viscoelastic, pseudoplastic, gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, and improved cleaning performance,  Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polycarboxylate acid type thickener.  Potassium to sodium weight ratios of at least 1/1 minimize amount of undissolved solid particles to further contribute to stability and pourability.  Stearic acid or other higher fatty acid mixture or salt further improves physical stability.  Use of potassium tripolyphosphate in place of tetrapotassium pyrophosphate reduces formation of crystal growth when the product is subjected to elevated temperatures, such at 100°F.
Patent CA-2041438-A1 (CA)
Inventor: FATTINGER CHRISTOF
IPC: G01N21/77
Filed: 1991-04-29
Abstract: A microoptical method and a corresponding sensor for detecting chemical substances in a sample. The sample is brought into contact with the waveguiding layer of a planar optical waveguide. Coherent light is coupled into the waveguiding layer, propagates therein as a guided wave, and the latter is decoupled from the waveguiding layer. Both, coupling and decoupling of the light wave guided in the planar waveguide are effected by means of a multi-diffractive grating situated in the plane of the layer, i.e. a grating structure comprising two or more fundamental frequency components for in-coupling and out-coupling, respectively. The multi-diffractive grating coupler results in a directional separation of decoupled light from reflected, transmitted and directly diffracted sub-beams, respectively. This makes possible a background-free detection of guided light decoupled from the waveguiding layer, although the regions on the waveguiding layer in which coupling and decoupling of the guided light wave take place overlap in part.
Patent CA-2047236-A1 (CA)
Inventor: ANDERSSON BENGT R
IPC: A61K31/352
Filed: 1990-03-28
Abstract: The present invention is directed to novel chromane derivatives substituted in the 3-position by a substituted amino moiety and substituted on the aromatic ring with one or two substituents.  The novel chromane derivatives have useful CNS properties.
Patent CA-2052978-A1 (CA)
Title: Screwable acetabular (hip joint) cup and method of its production
Inventor: HOERMANSDOERFER GERD
IPC: A61F2/34
Filed: 1991-10-08
Abstract: ABSTRACT     The present invention relates to a hip-joint socket of spherical geometry that can be screwed into place, this having a special thread for cementless implantation, and a process for the production of this.  In its shape, the special thread follows the convex surface formed by the nominal diameter of the socket and its bottom is almost completely matched to this spherical surface.  According to the present invention, the production of the special thread by metal-cutting methods is effected by machining with several tools having different cutting edge angles relative to the thread bottom, which are moved on different paths.  Because of the thread shape according to the present invention, a significantly higher primary fixation during implantation is achieved as a result of the thread tooth height that is available, and at the same time, the danger of loosening has been considerably reduced by the fact that because of the complete and large area bone contact of the socket surface, only low specific forces act on the bone bed.
Patent CA-2053044-A1 (CA)
Title: Deposition of electroactive polymers
Inventor: HELMS JEFFREY HAMPTON
IPC: C09K9/00
Filed: 1991-10-09
Abstract: ABSTRACT       A uniform, topographically planar layer of an electroactive polymer is electrodeposited onto a conductive substrate by first electrodepositing onto the conductive substrate a thin initiating layer of a different electroactive polymer prepared from monomer having a lower oxidation potential.
Patent CA-2056698-A1 (CA)
Title: Assay, employing analog to digital signaling, for the presence of an analyte in a sample in conjunction with a binding component, apparatus for performing said process, and a method of performing said assay
Inventor: PALMER JOHN L
IPC: G06Q50/00
Filed: 1991-11-29
Abstract: ABSTRACT OF THE DISCLOSURE An assay, method of performing said assay, and apparatus, capable of generating an "on"/"off" response from a changing concentration of  ample analyte, are described.  The assay system comprises a high affinity binding component for a sample analyte and has an analyte dissociation constant substantially less than the concentration of analyte to be measured.  Under initial condi-tions, wherein there is an absence of added analyte, a substantial number of binding sites must be empty.  The concentration of empty binding sites determines the threshold analyte concentration, or "trigger point," for the "on"/"off" switch.  Also required are a means for determining when excess analyte is present after the binding sites are substantially completely filled, wherein said means has an affinity for analyte which is substantially less than the binding component affinity for analyte.    Also described is a diagnostic apparatus, comprising a set of compartments, each with a different threshold analyte concentra-tion.  A signal is generated in each compartment only when the analyte concentration is greater than the preset threshold, allow-ing instrument-independent, accurate measurement of analyte concentration.
Patent CA-2058097-A1 (CA)
IPC: B65D5/06
Filed: 1991-12-19
Abstract: A paperboard carton blank including a first panel having side walls connected thereto by scored fold lines formed between a respective one of the side walls and a respective edge of the first panel is disclosed. A second panel is provided having a side wall connected thereto by a scored fold line formed between the side wall and an edge of the second panel. A seal flap is provided and extends a predetermined distance from a predetermined edge of one of the side walls of the first panel, the predetermined edge of the side wall being  that  edge  which  extends  adjacent  to  a predetermined edge of the second panel of a carton formed from the blank.   The blank also includes opposing end panels connected to each of the side walls and the first and second panels with each of the end walls having a die cut edge.  A predetermined region of each of the end panels is skived adjacent to the die cut edge in order to reduce the resultant thickness of the end panels when sealed and a cover flap is provided to overlie the end panels of the sealed carton.    An  opening  feature  defined  by  the predetermined edge of the second panel and regions of weakness formed in the second panel extending from the predetermined edge of the second panel for permitting access to the inside of a carton formed from the blank is also provided with the regions of weakness being formed of a pair of substantially parallel lines of weakness with at least one of lines of weakness being a knurled line of weakness.  The above paperboard blank being used to form a carton of a high barrier carton construction for containing a product placed therein wherein no die cut edges are exposed within the interior of the carton and the resultant carton exhibits a smooth continuous end cover.
Patent CA-2059053-A1 (CA)
Title: Processs for the production of an electrical insulant with a high breakdown voltage in vacuo
Inventor: LEGRESSUS CLAUDE
IPC: H01B19/00
Filed: 1992-01-08
Abstract: DESCRIPTIVE  ABSTRACT            Process for the production of an electrical insulant (5) placed in an intense electrical field, particularly between two electrodes (1, 2) of an electron tube.  The insulant (5) is a crystalline material, whose free surfaces (7) in vacuo (6) have been treated so as to reduce or eliminate crystallization defects.  The treatment is checked by meas-urements of an in particular optical or mechanical property of the free surfaces.  The breakdown voltage can be multiplied by three or four compared with conventional insulants and can approach the breakdown voltage of the vacuum.           (single drawing) B 10598.3 JCI
Patent CA-2060122-A1 (CA)
Inventor: GRANT PETER L
IPC: B64C27/00
Filed: 1992-01-28
Abstract: A support truss for the main rotor assembly of a helicopter is configured to structurally support the main rotor assembly in integrated combination with the helicopter airframe and to transmit dynamic and static longitudinal, lateral, vertical, and torsional loads of the main rotor assembly into the helicopter airframe at two distinct, spaced-apart load transfer levels. The support truss is an integrally formed structure that includes a generally cylindrical body member configured to provide attachment points for the static rotor mast and the transmission of the main rotor assembly, a pair of forward facing primary support ribs configured to secure the support truss to a primary load transfer level of the helicopter airframe and to transmit dynamic and static longitudinal, lateral, vertical, and all torsional loads to the primary load transfer level, and a pair of aft facing support struts configured to secure the support truss to a secondary load transfer level and to transmit only axial loads to the secondary transfer level. The support truss also includes a forward facing secondary support rib that provides fail-safe redundancy in the event of a loss of one of the primary support ribs. The support truss may also include a cross stringer extending between and integrally interconnecting the primary and secondary support ribs. A plurality of servo lugs may be integrally formed with the body member to provide lower attachment points for rotor servo actuators of the main rotor assembly.
Patent CA-2063887-A1 (CA)
Title: Roll roundness measuring and machining apparatus and method
Inventor: BAGDAL KARL T
IPC: B23H9/04
Filed: 1992-03-24
Abstract: ABSTRACT OF THE DISCLOSURE     An  apparatus  and  method for  measuring  and machining the roundness and concentricity of an outer surface of  a  roll  having  oppositely  disposed  ends spaced  along  a  longitudinal  axis.   The  apparatus includes  a  plurality  of  spaced  roll  supports  for rotatably supporting  the outer surface,  and one or more  drive  wheels  to  rotate  the  roll  about  its longitudinal  axis.   An  axial strut is provided for limiting  the  axial  movement  of  the  roll  during rotation,  and  a  pair  of  locators  are  individually mounted adjacent each of the ends of  the  roll  and establish  a  reference  line  along  the  roll.   A plurality   of   displacement   monitoring   devices simultaneously measure variations in the contour of the outer surface and movement of the reference line as  the  roll  is  rotated.   The  apparatus is further designed to determine the true axis of rotation of the  roll,  whereby  a  profile  of  the  roll  can  be obtained by comparing roundness measurements taken at any point  along  the  longitudinal  axis  to the true axis of rotation.  A preferred embodiment includes an electrical  discharge  machining  device  which  can utilize roundness and concentricity measurements  to optimize the machining of the outer surface.
Patent CA-2065526-A1 (CA)
Title: Aminophenol derivatives and pharmaceutical compositions thereof
Inventor: SUGIYAMA NAOKI
IPC: C07C215/80
Filed: 1992-04-07
Abstract: ABSTRACT OF THE DISCLOSURE          Aminophenol derivatives of the following formula (I)              (I) wherein X is hydrogen atom, lower alkyl or a protecting group for phenolic hydroxy, Y is hydrogen atom or lower alkyl, Z is hydrogen atom, lower alkyl, halogen atom or trifluoromethyl, A is hydrogen atom or lower alkyl, t is an integer of 1 to 5, l and m are respectively an integer of 2 to 4, E and W are nitrogen atoms, F is a direct bond or oxygen atom, P and Q are each hydrogen atom, halogen atom, lower alkyl or lower alkoxy, and R8 is hydrogen atom, hydroxy or a hydroxy-protecting group, and their pharmcologically acceptable salts.  Since the aminophenol derivatives (I) of the present invention have excellent antioxidative action and antiinflammatory and antiallergic action in mammalian animals including human, they are extremely useful as pharmaceuticals such as an antiinflammatory or an antiallergic.
Patent CA-2067511-A1 (CA)
Title: Polymer scale preventive agent, polymerization vessel for preventing polymer scale deposition, and process of producing polymer using said vessel
Inventor: SHIMIZU TOSHIHIDE
IPC: C08F2/00
Filed: 1992-04-29
Abstract: ABSTRACT OF DISCLOSURE            A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising a pyrogallol-acetone resin.  The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel.  Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness is obtained.
Patent CA-2067774-A1 (CA)
Inventor: KIM HONGKYU
IPC: C04B35/634
Filed: 1990-10-22
Abstract: A polyacetal binder is removed from an extruded or injection molded ceramic green body in less than 25 hours by a var-iable heating rate schedule in which the heating rate is reduced when the temperature of the green body reaches the point at which isothermal degradation of the polyacetal binder can take place and wherein at least 80 wt. % of the binder can be removed. In air, the isothermal removal of binder can take place within the range of 160-220 °C while in nitrogen the range is from about 300-360 °C.
Patent CA-2070663-A1 (CA)
Title: Sulfonating agent and process
Inventor: OGATA EIJI
IPC: C07C309/46
Filed: 1991-10-09
Abstract: A sulfonating agent represented by the general formula (see formula I) wherein the groups R1 are the same or different and are each a lower alkyl group having 1 to 3 carbon atoms, n is an integer of 3, 4 or 5, m is an integer of 1 or 2, and n + m <= 6, and a process for sulfonating an aromatic compound with use of the sulfonating agent.