baber/WOPTO huggingface dataset:
Patent CA-2006750-A1 (CA)
Inventor: DUCHEYNE PAUL
IPC: A61F2/46
Filed: 1989-12-28
Abstract: The distribution of short, fine, rough surface titanium reinforcing fibers homogeneously throughout acrylic surgical bone cement is accomplished by adding the fibers in the form of bundles of several hundred fibers with the fibers being bonded to each other with an adhesive binder that is soluble in the liquid monomer component of the bone cement.  The fiber bundles are either premixed with the powdery polymer bead component of the bone cement followed by addition of the liquid monomer or the polymer and liquid are premixed into a viscous liquid and the fiber bundles are gradually added with stirring to the viscous liquid.  In either case, as the adhesive binder dissolves in the liquid monomer the individual fibers are freed and the stirring mixes the fibers homogeneously throughout the cement mass.
Patent CA-2007599-A1 (CA)
Inventor: NEWKIRK MARC S
IPC: C04B35/563
Filed: 1990-01-11
Abstract: Abstract Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron donor material and a carbon donor material.  The reactive infiltration typically results in a composite comprising a boron-containing compound, a carbon-containing compound and residual metal, if desired.  The mass to be infiltrated may contain one or more inert fillers admixed with the boron donor material and carbon donor material.  The relative amounts of reactants and process conditions may be altered or controlled to yield a body containing varying volume percents of ceramic, metal, ratios of one ceramic to another and porosity.
Patent CA-2007776-A1 (CA)
Title: Phase modulated spectrophotometry
Inventor: CHANCE BRITTON
IPC: G01J9/04
Filed: 1990-01-15
Abstract: The present invention to provides methods and apparatus for studying photon migration using signal modulation techniques such as time, frequency and phase modulation. The photon migration data may then be converted, using the principles of time-resolved spectroscopy, to determine the concentration of an absorptive constituent in a scattering medium, such as the concentration of hemoglobin in a brain of other tissue. The methods and apparatus disclosed provide as a specific embodiment, a dual wavelength phase modulation system which allows the clinical application of the advantages of time resolved spectroscopy in an economical and commercially feasible embodiment.
Patent CA-2010904-A1 (CA)
Title: Flotation apparatus
Inventor: HIRVONEN ERKKI
IPC: B03D1/14
Filed: 1990-02-26
Abstract: Abstract of the Disclosure The invention relates to a flotation apparatus improv-ing the recovery of concentrate remaining with tailing. The apparatus according to the invention comprises a cell (1) for treating the ore to be beneficiated and the materials added thereto, i.e. the head material, a feed pipe (2)  leading to the cell for feeding head material into the cell (1), a froth chute (3) disposed in the top portion of the cell  (1)  for collecting concentrate rising up in the cell,  and a discharge duct (4) disposed in the lower portion of the cell for conveying the tailing out from the cell, as well as a regulating device (5) disposed in the bottom of the cell, wherethrough compressed air and water in a finely divided mixture are supplied to the cell. (Figure 1)
Patent CA-2011577-A1 (CA)
Title: Fabric conditioning
Inventor: KAY STEPHEN N
IPC: C11D1/835
Filed: 1990-03-06
Abstract: ABSTRACT            A liquid fabric conditioner composition comprising an aqueous base, a cationic fabric softener material and ethylene glycol distearate. Preferably the composition also comprises a fatty acid material. The ethylene glycol distearate is preferably present as a separate dispersed phase.
Patent CA-2013392-A1 (CA)
Title: Acoustic sensing arrangements
Inventor: GODFREY LESLIE K
IPC: G10K11/00
Filed: 1990-03-29
Abstract: ABSTRACT:-Improvements Relating to Acoustic Sensing Arrangements An underwater sensing arrangement in which hydrophones are embodied in horizontally disposed arms of a hydrophone support structure adaptive to be suspended below water and in which the support arms are elliptical and orientated so that they present the lowest resistance to horizontal flow of water past the structure and present the highest resistance or drag against movement.            [Figure 1]
Patent CA-2016266-A1 (CA)
Title: Process for forming end-capped polyamic acids polyimides
Inventor: LEE BURNELL
IPC: C08G73/10
Filed: 1990-05-08
Abstract: PROCESS FOR FORMING END-CAPPED POLYAMIC ACIDS POLYIMIDES              ABSTRACT     This invention discloses a process where a portion of an amine terminated polyamic acid intermediate is end-capped with an aromatic monoanhydride additionally substituted with a free carboxylic acid or ester thereof.          The polyamic acids of this invention are readily converted to high molecular weight polyimides which may contain a small amount of amide groups.
Patent CA-2020814-A1 (CA)
Title: Packet concentrator and packet switching system
IPC: H04L47/43
Filed: 1990-07-10
Abstract: PACKET CONCENTRATOR AND PACKET SWITCHING SYSTEM            Abstract of the Disclosure:          A method and system are provided for concentrating calls  for  a  packet  switching  system  in  a  hierarchical communication network.  A plurality of terminals communicate with an associated plurality of packet concentrators that, in turn, communicate with switching equipment.  The system and method comprise initiating a call at a call terminal to be communicated to the packet concentrator and identifying the call terminal by associating a line number communicating the terminal with the concentrator with a first logical channel number for communication from the packet concentrator to the switching equipment.  The logic channel number is recorded in association  with  the  first  number  line  at  the  packet concentrator whereby call  communication back to the call terminal can be made on the proper line number by relating the line number with the logic channel line of the call and thereby avoiding  the  need  to  switch  logic  channels  between  the concentrator and the switching equipment to avoid costly call processing at the concentrator.  Further benefits provided by executing of the general call processing at the switching equipment including tariff control.
Patent CA-2021628-A1 (CA)
Title: Method of manufacturing dual alloy turbine disks
Inventor: KRUEGER DANIEL D
IPC: B22F3/00
Filed: 1990-07-19
Abstract: An article of manufacture having at least a first and a second part, each part having different mechanical properties, compositions, microstructures or combinations thereof, being joined together using a forging process to yield a substantially defect-free joint region. The article in the form of a turbine disk is particularly suited for use in a gas turbine engine in which the hub or inner portion must be resistant to law cycle fatigue and have high strength, while the rim or outer portion must be resistant to stress rupture failure and creep failure.
Patent CA-2022234-A1 (CA)
Title: Preprimed metal substrates for formed metal application
Inventor: MAZE ETIENNE G
IPC: C09D163/00
Filed: 1990-07-30
Abstract: PREPRIMED METAL SUBSTRATES FOR FORMED METAL APPLICATIONS            ABSTRACT OF THE DISCLOSURE      The present invention relates to preprimed metal substrates suitable for use in formed metal applications.  The preprimed metal substrate is coated with, as primer layer, a first coating layer applied onto the metal substrate, the first coating layer being based upon a particular hydroxyl groups-containing block copolymer, and     at least one flexible subsequent coating layer applied onto the first coating layer.  The preprimed metal substrates are especially useful in automotive applications.  * * * * *
Patent CA-2022690-A1 (CA)
Title: Optical repeated transmission method and system
IPC: H04B10/29
Filed: 1990-08-03
Abstract: In a system of optical repeated transmission having a signal transmission path for transmitting signal light, and an optical repeater disposed in the signal transmission path, and directly amplifying the signal light, the amplification factor of the repeater is not dependent on the direction of polarization of the signal light that is input to it.
Patent CA-2022816-A1 (CA)
Title: Compounds
Inventor: SMITH STEPHEN A
IPC: C07D491/048
Filed: 1990-08-07
Abstract: Abstract Compounds of formula (I), and pharmaceutically acceptable salts thereof:                   (I) wherein the Het ring is of sub-formula (a) or (b):      (a) (b) wherein one or two of W1, W2, W3 and W4 is N or NO (such that if two are NO then these are are W1 and W4), and the others are CH, CRa or CRb;   one of Q1, Q2 and Q3 is S and the other two are CH and CRC; either Z1 and Z2 are absent and Z3, Z4 and Z5 and the carbon atoms to which Z3 and Z5 are attached, form a 5-membered non-aromatic heterocyclic ring; or Z1 is absent and Z2, Z3, Z4, Z5 and the carbon atoms to which Z2 and Z5 are attached, form a 6-membered non-aromatic heterocyclic ring; or Z1, Z2, Z3, Z4 and Z5 and the carbon atoms to which Z1 and Z5 are attached, form a 7-membered non-aromatic heterocyclic ring; E is absent or is (CH2)n or CH(CH2)n-1 wherein n is 1 to 4; A is -CONH-, -NHCO-, -COO-, -S(O)r- wherein r is 0, 1 or 2, or -CH2-; p is 0, 1 or 2; s is 0, 1, 2, 3 or 4; q is 0 or 1; Rz is hydrogen, C1-6 alkyl or, when A is -CH2-, hydroxy; Ra and Rb are independently selected from hydrogen or a substituent; R1 is CH2R9 wherein R9 is optionally substituted aryl or heteroaryl; R2 is CHR10R11 wherein R10 is hydrogen or methyl and R11 is C1-6 alkyl, C3-8 cycloalkyl, optionally substituted aryl or heteroaryl, or R11 is amino, C2-7 alkanoylamino, 2-oxopyrrolidinyl, 2-oxopiperidinyl or C1-6 alkoxycarbonylamino; R3 is CH2R12 wherein R12 is C1-6 alkyl, C3-8cycloalkyl or phenyl; R4 is C1-6 alkyl, C3-8 cycloalkyl, a saturated or unsaturated heterocyclic ring linked through carbon, hydroxy, C1-6 alkoxy, C1-7 alkanoyloxy, amino, C1-7 alkanoylamino, amino substituted by one or two C1-6 alkyl groups, or C1-6 alkylsulphonyl, carboxy, C1-6 alkoxycarbonyl, benzyloxycarbonyl, aminocarbonyl or CH(NHR13)CO2R14 wherein R13 is hydrogen or C1-6 alkanoyl and R14 is hydrogen or C1-6 alkyl; or (when s is 2 to 4) R4 is a saturated or unsaturated heterocyclic ring linked through nitrogen; and the dashed line represents an optional bond (when E is present); which are renin inhibitors, a process for their preparation and their use as pharmaceuticals.
Patent CA-2023134-A1 (CA)
Title: Carburetor-air deflector bar
Inventor: EDMONSTON WILLIAM H
IPC: F02M9/06
Filed: 1990-08-10
Abstract: A carburetor of the slide and metering rod type is characterized by the provision of an air deflecting bar. in the carburetor throat adjacent tho metering rod for deflecting the flow of air from the inlet end of the carburetor around the metering rod to reduce turbulence and increase air velocity by compressing the air flow. The deflecting bar has a wedge configuration with tho pointed edge thoroof facing in the direction of the inlet end.  The bar may be permanently mounted within the throat or connected with the carburetor throttle slide member.
Patent CA-2023841-A1 (CA)
Title: Thermal break systems
Inventor: CLATTY JAN L R
IPC: C08G18/66
Filed: 1990-08-23
Abstract: Homogeneous storable mixtures containing small quantities of a potassium halide, having a high mixed hydroxyl number or mixed hydroxyl/amine number and an average functionality of at least 2.0 are made by mixing (a) a polyoxyalkylene polyol and/or polyolamine and/or polyamine based on an alkyloxirane having a molecular weight of from 400 to 12,000 and (b) a low molecular weight polyol which is not completely miscible with (a). These mixtures are reacted with a prepolymer or a polyisocyanate to produce shrink stable thermal break urethanes having good adhesion to substrate properties. Use of such mixtures increases processing flexibility without detrimentally affecting the physical properties of the thermal break urethanes produced.
Patent CA-2026068-A1 (CA)
Title: Cpu-bus controller
Inventor: LARSON RONALD J
IPC: G06F13/12
Filed: 1990-09-24
Abstract: ABSTRACT A  synchronous  bus  controller  which  provides  a functional   control   link   between   one   or   more microprocessors and an asychronous main input/output bus is provided.  The bus controller includes a state machine and data bus width determining logic enabling the bus controller to  initiate  and  control  access  operations between microprocessors and accessible devices on the main input/output bus when the microprocessor and the accessed device may have different data bus widths.   The bus controller  includes  logic  circuitry  to  determine  the number of access cycles required to complete a requested access operation and detects the last access cycle of a current access operation to terminate an access operation and  provide  a  ready  signal  to  the  microprocessor indicating that the bus controller is ready for the next access request.
Patent CA-2028667-A1 (CA)
Inventor: KAPLAN ANDREW J
IPC: A63H7/06
Filed: 1990-10-26
Abstract: ABSTRACT           The  present  invention  relates to a novel push toy that includes a handle having a main  shaft  connected to  an  axle  which  includes  at  least two substantially circular   members   rotatably   fitted   thereon.     The substantially  circular members are rotatably engaged with each other such that when the push-toy is pushed or pulled across   a  surface,  the  substantially  circular  member engaging the surface rotates, thereby rotating  the  other substantially  circular  member  which is not engaged with the surface.
Patent CA-2029132-A1 (CA)
Title: Sulphonylaminocarbonyltriazolinones having substituents which are bonded via sulphur
Inventor: MUELLER KLAUS-HELMUT
IPC: C07D405/12
Filed: 1990-11-01
Abstract: Herbicidal sulphonylaminocarbonyl-triazolinones having substituents which are bonded via sulphur, of the formula   in which n represents the numbers 0, 1 or 2, R1 represents hydrogen, hydroxyl or amino, or represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aryl, alkoxy, alkenyloxy, alk.ylamino, cycloalkylamino and dialkylamino, R2 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl, aralkyl and aryl, and R3 represents an optionally substituted radical from the series comprising alkyl, aralkyl, aryl and heteroaryl, as well as salts of compounds for the formula (I).      Also new are the compounds for the following formula:    in which N, R1 and R2 have the abovementioned meanings and Z represents halogen, alkoxy, aralkoxy or aryloxy.
Patent CA-2031505-A1 (CA)
Inventor: OGATA KAZUMI
IPC: C07F9/655
Filed: 1990-04-24
Abstract: Phospholipid derivatives comprising ascorbic acid combined with an ester or ether of glycerol through phosphoric acid and having both antioxidizing and lipid perioxide inhibitory activities, represented by any of formulae (I) and (II), wherein R1 and R2 may be the same or different from each other and each represents alkyl or acyl, provided that each formula does not represent the configuration.
Patent CA-2034126-A1 (CA)
Title: Spinal support plates
Inventor: BLACK ROBIN
IPC: A61B17/70
Filed: 1991-01-14
Abstract: A spinal plate is provided that has two degrees of curvature in the lower surface that opposes the spinal vertebrae. This lower surface has the shape of a toroidal segment. A series of plates may be taken from a principal "s"-shaped template of similar shape on its lower surface. For convenience, the sides of the template are circular in form. A special hole pattern is also disclosed.
Patent CA-2034915-A1 (CA)
Title: Optical fiber telecommunication line with separate, optically transmitted service channels
Inventor: GRASSO GIORGIO
IPC: H04B10/29
Filed: 1991-01-24
Abstract: An optical fiber transmission line which includes units for injecting into, and units for extracting, optical service signals from the line's optical fiber.  The units include optical service signal emitters and receivers for receiving from the optical line and/or injecting into the optical line service signals in the form of optical signals having a wavelength which is substantially different from the wavelength of the telecommunication signals also transmitted over the optical line, each of the units is associated with an optical coupler which is inserted in the line and which is suitable for coupling it with the line fiber and/or for extracting the optical service signals from the line fiber.
Patent CA-2035722-A1 (CA)
Title: Radiation-sensitive mixture and recording material and a process for the production of relief recordings
Inventor: ELSAESSER ANDREAS
IPC: G03F7/023
Filed: 1991-02-05
Abstract: Abstract of the Disclosure The invention relates to a usually positive-working radiation-sensitive mixture which contains as essential components a binder which is insoluble in water and soluble in aqueous-alkaline solutions, a  1,2-quinone  diazide  and  a  compound  which diminishes the developer solubility of the exposed regions by heat treatment,  in which the compound which diminishes the developer solubility which is present is at least one urethane of the formula I:                               I     in which R1   is hydrogen or methyl, R2   is  hydrogen,  alkyl,  substituted  or unsubstituted aryl, or substituted or unsubstituted arylaminocarbonyl, R3   is substituted or unsubstituted arylene or arylenealkylene, Q    is hydrogen, -CH4-p, or -CR5R6 in which R5 and R6 can be identical or different and are selected from the group consisting of hydrogen, alkyl and aryl, carbonyl, oxygen, sulfur or sulfonyl, m    is 1, 2 or 3, n    is at least 1 and not more than 50, and p    is 1, 2 or 3.     The  mixture  is  suitable   for   producing    a radiation-sensitive recording material which has a long shell life in combination with high radiation sensitivity and has a broad image reversal range in a process for producing relief images.
Patent CA-2036857-A1 (CA)
Title: Color picture tube having an inline electron gun with an astigmatic prefocusing lens
Inventor: NEW DAVID A
IPC: H01J29/50
Filed: 1991-02-21
Abstract: An improved color picture tube includes an inline electron gun for generating and directing three inline electron beams along coplanar beam paths toward a screen. The gun includes a plurality of electrodes which form a beam-forming region, a prefocusing lens, and a main focusing lens for the electron beams. The improvement resides within the prefocusing lens, which includes four active surfaces. At least one of the active surfaces has asymmetric prefocusing recesses formed therein.
Patent CA-2037105-A1 (CA)
Title: Diagnostic assay for alzheimer's disease
Inventor: GHANBARI HOSSEIN A
IPC: G01N33/53
Filed: 1991-02-26
Abstract: The invention relates to methods for diagnosing Alzheimer's disease using sandwich immunoassays and antigens and antibodies related to Alzheimer's disease.     The invention further relates to antibodies useful in the sandwich immunoassays, which are specific for an antigen found in Alzheimer's patients, and to a hybridoma cell line, ATCC No. HB9205, for producing the antibodies.
Patent CA-2037251-A1 (CA)
Inventor: ABDULALLY IQBAL F
IPC: F22B31/00
Filed: 1991-02-27
Abstract: A fluidized bed combustion system and method in which a recycle section is located within an enclosure housing the furnace section of the combustion system. The flue gases and entrained solids from a fluidized bed in the furnace section are separated and the flue gases are passed to a heat recovery section and the separated particulate material to the recycle heat exchanger. The recycle section includes a bypass chamber for permitting the separated solids to pass directly from the separator to the furnace section. A heat exchanger is provided in the recycle section to transfer heat from the separated material in the recycle section to a fluid flow circuit for controlling the temperature of the separated material. The separated material is the recycle section is then passed back to the furnace section.
Patent CA-2037623-A1 (CA)
Title: Method for preparing process flavourings
Inventor: POTMAN RONALD P
IPC: A23L27/22
Filed: 1991-03-06
Abstract: The present invention is concerned with method for preparing process flavourings, comprising the steps of:   (a) mildly oxidizing fat to such a degree that the anisidine value of the fat is increased by at least a factor 1.5,   (b) preparing a Maillard reaction mixture comprising:   (1) a carbohydrate ingredient selected from the group consisting of reducing carbohydrate, precursors of such carbohydrates, heat-degradation products of such carbohydrates and mixtures thereof,   (2) a nitrogen compound with general formula NHRR', where R and R' represent hydrogen, aliphatic group or aromatic group and where R and R' may be the same or different, and (3) the oxidized fat obtained in step (a), the weight ratio of carbohydrate to nitrogen compound exceeding 1:20, and   (c) maintaining the reaction mixture at a temperature of more than 50 DEG C for at least 2 minutes. It was found the incorporation of mildly oxidized fat in a Maillard reaction mixture upon subsequent heat treatment generates a relatively strong and in addition to that a balanced process flavouring due to the fact that also non-typical Maillard-type process flavourings are formed. n
Patent CA-2039291-A1 (CA)
Inventor: KOCH HANS W
IPC: F16C19/30
Filed: 1991-03-27
Abstract: The  present  invention  comprises  a  spacer, especially a spacer for use with a thrust roller bearing assembly.  An internal radial  lip projecting into the central aperture of the spacer provides for frictional retention on a shaft passing therethrough.   Where the thrust bearing and spacer combination is to be installed in a bore,  one  or more  external  radial  lips may be included to frictionally retain the spacer within the bore.  The spacer element is adapted for coupling to one of the bearing elements.  In one embodiment, the bearing and  spacer  may  be  bonded  together.    In  another embodiment,  the  spacer  and  bearing  are  joined  by mutually  engageable  circumferential  locking  surfaces. The spacer is selected for a plurality of spacers of differing axial dimension, each spacer being color coded according to its axial dimension.
Patent CA-2042137-A1 (CA)
Title: Specially configured printing plate securement apparatus
Inventor: PHILPOT IVAN N
IPC: B41N6/00
Filed: 1991-05-08
Abstract: ABSTRACT      This invention provides a securement apparatus for a printing plate.  The apparatus includes a first flat strip-like portion, a second flat strip-like portion narrower than the first flat strip-like portion and a third flat strip-like portiion which  is  also narrower than the  first  flat strip-like portion.   A first connecting strip-like portion connects the first  flat strip-like portion to the second flat strip-like portion and a second connecting strip-like portion connects the first flat strip-like portion to the third flat strip-like portion thereby forming an S-shaped printing plate securement apparatus.
Patent CA-2043100-A1 (CA)
Title: Circuit for providing dv/dt immunity
Inventor: KINZER DANIEL M
IPC: H03K19/003
Filed: 1991-05-23
Abstract: ABSTRACT OF THE DISCLOSURE           A pulse filter is connected between a high voltage level shift circuit which produces output puls-es in a pattern determined by an input logic circuit and the high side logic circuit which controls the production of power MOSFET or IGBT gate signals or the like.  The pulse filter immunizes the circuit against false operation due to the fast dv/dt transients.  The circuit is integrated into a power integrated circuit for a MOS device gate driver.