baber/WOPTO huggingface dataset:
Patent CA-2004773-A1 (CA)
Inventor: LAU HON-PENG P
IPC: G01N33/535
Filed: 1989-12-06
Abstract: ENZYME-LINKED IMMUNOASSAY FOR MEASUREMENT OF CYCLOSPORIN A LEVELS IN WHOLE BLOOD SAMPLES               ABSTRACT    An enzyme-linked immunoassay for the determination of cyclosporin A levels in whole blood samples is provided based on the utilization of .beta.-D-galactosidase as an enzyme label and chlorophenol red-.beta.-D-galactopyranoside or resorufin-.beta.-D-galactopyranoside as a .beta.-D-galactosidase substrate.
Patent CA-2005477-A1 (CA)
Inventor: ANDRE OLIVIER L P
IPC: C08G59/62
Filed: 1989-12-14
Abstract: A process for the preparation of a polyether resin having an epoxy group content of less than 0.2 meq/g and containing on average from (see formula I)to (see formula II) primary hydroxyl groups, by reacting a glycidyl ester of a C9-11 branched aliphatic acid with an aliphatic primary polyhydric alcohol having n primary hydroxyl groups, and 5 to 16 carbon atoms, n having a value of 3 to 6, in the presence of an etherification catalyst characterised in that the etherification catalyst is a tin, zinc or iron compound.
Patent CA-2006174-A1 (CA)
Inventor: OUELLET LUC
IPC: H01L21/768
Filed: 1989-12-20
Abstract: ABSTRACT OF THE DISCLOSURE            A method of fabricating a semiconductor device is disclosed wherein a first dielectric layer is applied over an interconnect layer having tracks defining a conductive pattern, the first dielectric layer forming valleys between the tracks of the interconnect layer, spin-on glass is applied over said first layer to planarize it by forming spin-on glass zones in the valleys defined by the first dielectric layer, and a second layer is applied to the planarized first layer, whereby the first and second layers and said spin-on glass zones form a composite multi-layer film.  The first layer is formed such that it has compressive stress at room temperature to prevent cracking in the composite multi-layer film during subsequent heat treatment. The second layer can be another dielectric layer or a further interconnect layer applied directly to the first layer and SOG planarization layer.  The method can also be applied to other fields, such as the manufacture of optical fibers, emission diodes and the like.
Patent CA-2006443-A1 (CA)
Title: Compounds
Inventor: SMITH STEPHEN A
IPC: C12N9/99
Filed: 1989-12-21
Abstract: Abstract Compounds of formula (I) and pharmaceutically acceptable salts thereof:                       (I) wherein Z1, Z2, Z3 and the carbon atoms to which Z1 and Z3 are attached, form a 5-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; q is 0 or 1; s is 0, 1, 2, 3 or 4; 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, C3-8 cycloalkyl or phenyl; and R4 is 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, 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-2011697-A1 (CA)
Inventor: TSUKADA MASAMITSU
IPC: B65B51/14
Filed: 1990-03-07
Abstract: ABSTRACT OF THE DISCLOSURE An annular article-wrapping member is disclosed in which a shrinkable wrapping material is wound on the outer periphery of an annular article to be wrapped in such a manner that the direction of shrinkage of said shrinkable wrapping material coincides with a circumferential direction of the outer periphery of  the annular article.    The  overlapped portions of the wrapping material together.  The shrinkable wrapping material is  heated  to be  shrunk to  provide  an intermediate wrapping member having sleeve openings having a diameter smaller than an inner diameter of the annular article. Sleeve forming portions of the intermediate wrapping member together in a ring-shape along an inner periphery of said annular article.   The portion of the shrinkable wrapping material disposed inwardly of the joined portion is removed by cutting, thereby obtaining the annular article-wrapping member.
Patent CA-2011741-A1 (CA)
Inventor: RENKEN DAVID J
IPC: F25B47/02
Filed: 1990-03-08
Abstract: A transport refrigeration system which includes a compressor, a condenser, a receiver, an evaporator, an accumulator, and a control valve which selectively initiates heating and cooling cycles. The heating capacity of a heating cycle is enhanced by connecting the outlet of the receiver to the inlet of the accumulator just prior to each heating cycle, while maintaining the control valve in a cooling position for a predetermined time delay. This forces any liquid refrigerant trapped in the condenser to flow into the receiver, while lower pressure in the accumulator causes liquid refrigerant in the receiver to flow into the accumulator, to provide additional liquid refrigerant in the accumulator at the start of the heating cycle, which is initiated at the end of the predetermined time delay.
Patent CA-2016435-A1 (CA)
Title: Mixed gypsulmless portland cement
Inventor: SKVARA FRANTISEK
IPC: C04B7/19
Filed: 1990-05-10
Abstract: ABSTRACT OF THE DISCLOSURE:           A mixed gypsumless Portland cement the application of which enables to achieve high initial and long - lasting strength.  The cement contains from 60 to 96.7 weight per cent of the gypsumless Portland cement clinker with the specific surface of from 350 to 550 m2/kg, from 3 to 40 weight per cent of ground latently hydraulic matter, such as the granulated blast furnace slag,  light ash a.s.o.,  these two components having been ground in the presence of from 0.01 to 0.1 weight per cent of a liquid milling admixture, advantageously with a syntheticly surface active matter with wetting purposes, and containing further on from 0 to 20 weight per cent of fine amorphous SiO2 and/or from 0.1 to 3 weight per cent of the sulphonated polyelectrolyte or ligninsulphonate and from 0.5 to 6 weight per cent of alkaline carbonate, hydrogenecarbonate or hydroxide.
Patent CA-2017913-A1 (CA)
Inventor: JOLICOEUR JOHN M
IPC: C11D1/14
Filed: 1990-05-30
Abstract: This  is  a  process  for making  high  active  alkyl  sulfate particles  which  are  dispersible  in  cool  or  cold  water.   The process  includes  applying  mechanical  work  to  low  moisture, neutralized C12-18 alkyl  sulfate paste.   Included are detergent particles made by this process and a method for washing fabrics at cool or cold water temperatures using detergent particles made by this process.
Patent CA-2018643-A1 (CA)
Title: Multi-purpose valve
Inventor: OKERBLOM CHARLES L
IPC: F16K15/18
Filed: 1990-06-08
Abstract: ABSTRACT         A multi-purpose valve comprises a valve body with inlet and outlet fluid openings and an elongated cylindrical fluid passageway therebetween and in fluid communication therewith.  A butterfly type valve member is pivotally supported at its mid-point in the passageway and is swingable between open and closed positions respectively in alignment with and perpendicular to the longitudinal centerline of the passageway.  A butterfly type check valve has a portion thereof an overlapping relationship with the first butterfly type valve member to minimize drag as well as the dimension of the two valves in the longitudinal direction.  Alternatively, a "barn door" type check valve is provided for swinging movement of its vanes about a common pivot axis adjacent a downstream edge of the first butterfly valve member.  Again drag loss is minimized and a highly compact valve assembly is provided.  The first butterfly valve member is manually operated and has an associated indicator in the form of a movable pointer on an operating handle and an adjacent fixed scale.  Upstream and downstream pressure taps are also provided.
Patent CA-2021561-A1 (CA)
IPC: H04B10/63
Filed: 1990-07-19
Abstract: ABSTRACT OF THE DISCLOSURE      A receiver for coherent optical communication to be applied to a phase diversity system is disclosed.  The receiver is capable of com-pensating the wavelength dispersion in an optical fiber to secure an enhanced receiving sensitivity.
Patent CA-2021848-A1 (CA)
Inventor: HERBERT WILLIAM G
IPC: C25D1/02
Filed: 1990-07-24
Abstract: A cylindrical electroforming mandrel and method of fabricating and using same, the mandrel having a substantially cylindrical mandrel core having substantially parallel sides and at least one tapered end having curved sides which converge toward an apex, and a plated metal coating on the parallel sides and the tapered end, the profile of an axial cross section of the tapered end from the intersection between the curved sides and the parallel sides to about the apex having the shape of half an ellipse defined by the formula:   y = ~ b/a~(a2-x2) where:   a = 1/2 the length of the major axis of the ellipse and has a value between about 2.3b and about 1.7b, b = 1/2 the height of the minor axis of the ellipse and has a value at least about 1,000 times greater than the thickness of said plated metal coating on said parallel sides, and x and y define a point lying along the outer surface of the ellipse measured from the center of the elipse.
Patent CA-2024428-A1 (CA)
Inventor: ISHIKAWA MASAYUKI
IPC: A61K31/52
Filed: 1990-08-31
Abstract: Abstract of the Disclosure 6-{[3-[4-(2-Methoxyphenyl)-1-piperazinyl]propyl]-amino]-1,3-dimethyluracil can be used as a therapeutic agent for urinary obstruction.
Patent CA-2025790-A1 (CA)
Inventor: ZYSMAN ALEXANDRE
IPC: A61K31/27
Filed: 1990-09-20
Abstract: L'invention concerne de nouveaux composés lipidiques de formule (I):     (voir formule I) dans laquelle R1 désigne un radical alcoyle ou alcényle en C11 à C21 et R2 désigne un radical hydrocarboné, linéaire ou ramifié, en C8 à C30, saturé ou portant au moins une insaturation éthylénique. Les composés selon l'invention sont utiles pour les traitements et les soins de la peau et des cheveux en cosmétique ou en dermopharmacie.
Patent CA-2025829-A1 (CA)
Inventor: HORN GERHARDT
IPC: C07C29/141
Filed: 1990-09-20
Abstract: The present  invention relates  to  a process  for the preparation of alcohols by reaction of organic carbonyl compounds or mixtures containing organic carbonyl compounds with hydrogen over a supported catalyst containing nickel, aluminum oxide and zirconium dioxide at elevated temperature and if appropriate under increased pressure. Ketones, aldehydes and derivatives thereof are reacted as the carbonyl compounds at temperatures of 60 to 150°C.
Patent CA-2026661-A1 (CA)
Title: Decorative composites and methods for making same
Inventor: MORRIS TERRY L
IPC: B44C3/02
Filed: 1990-09-14
Abstract: ABSTRACT OF THE DISCLOSURE       Decorative composites comprising a structural layer, a stabilizing layer, and a metal layer having a desired appearance which exhibits high heat stability and in some embodiments is extensible and flexible.  The metal layer may be substantially coextensive with the structural layer or may be independently configured therefrom such that the structural layer has non-metal-backed segments.  Also methods for making such composites.
Patent CA-2028371-A1 (CA)
Title: Suspension control apparatus
Inventor: OKUDA EIICHIRO
IPC: B60G17/016
Filed: 1990-10-23
Abstract: Vehicle behavior during cornering and turning is correctly determined by computation and map-retrieval from output signal (V) of a vehicle speed sensor and output signal (.omega. y) of a yaw angular velocity sensor for detecting angular velocity about a yaw axis of the vehicle.  Rolling motion of the vehicle during normal turning or quick turning is restrained by increasing damping force of shock absorbers controlled by the suspension control apparatus.
Patent CA-2031372-A1 (CA)
Title: Apparatus for controlling the compositions of a laser gas or gas mixture
Inventor: BEDWELL DAVID J
IPC: H01S3/225
Filed: 1990-12-03
Abstract: ABSTRACT           Apparatus for Controlling the Composition of a Laser Gas or Gas Mixture Apparatus for controlling the composition of a laser gas or gas mixture includes a cryogenic gas-processor (2) connectible to a gas laser (1) selectively to receive gas or a gas mixture therefrom, remove impurities from the gas or gas mixture and selectively return the purified gas or gas mixture to the laser (1). A high temperature gas-purifier (3) is provided in gas flow connection with the processor (2) and with the laser (1) selectively to receive gas or a gas mixture therefrom, remove halogen and/or impurities from the gas or gas mixture and selectively return the dehalogenated or purified gas or gas mixture to the laser (1). Gas analysis means (4) is provided for receiving gas or gas mixture from the laser (1) to analyse it and produce output signals indicative of the actual composition of the laser gas or gas mixture. The output signals are passed to control means (6) operative to compare the actual composition values with desired composition values and operate the processor (2) and/or purifier (3) and/or a clean gas or gas mixture source (5) selectively connectible to the laser (1) to control the laser gas or gas mixture composition.
Patent CA-2036360-A1 (CA)
Inventor: PALMER JAMES T
IPC: C07C67/10
Filed: 1991-02-14
Abstract: The preparation of magnesium benzyl fluoromalonate and other equivalent materials, the synthetic equivalents of the -CH2F moiety, is described.    Reaction between these reagents and the in situ-formed imidazolides of various carboxylic acids gives beta-keto-alpha-fluoroesters, which upon hydrogenation and spontaneous decarboxylation yields fluoromethyl ketones in excellent yields. The overall transformation from RCOOH to RCOCH2F is thus illustrated.
Patent CA-2038194-A1 (CA)
Title: Sipes for tire treads
Inventor: GRAAS MAURICE
IPC: B60C11/12
Filed: 1991-03-13
Abstract: ABSTRACT OF THE DISCLOSURE                   SIPES FOR TIRE TREADS      A winter type tire tread (11) comprises a plurality of grooves defining a repetitive pattern of elastomeric blocks (15), said elastomeric blocks being provided with a first and a  second  series  of  sipes,  the  first  series (22) entering the footprint (16) of the tire before the second series (23), the second series leaving the footprint of the tire after the first series. At least 50% and preferably at least 70% of the first series of sipes (22) form with the front  edge  (17)  of  the  footprint,  when  entering  the footprint (16), an angle of at most 40°. At least 50% and preferable at least 70% of the second series of sipes (23) form with the rear edge (18) an angle of at least 50°.
Patent CA-2038722-A1 (CA)
Inventor: IMAI TAMOTSU
IPC: B01J37/02
Filed: 1991-03-20
Abstract: Alkyl aromatic compounds may be prepared by reacting an aromatic compound with an alkylating agent such as an olefin in the presence of an alkylation catalyst which has been prepared by coextruding a clay component and at least one multi-valent rare earth metal component, followed by drying theresultant extrudate and calcination thereof. By utilizing a catalyst which has been prepared by this method in an alkylation reaction it is possible to obtain an improved alkylate selectivity.
Patent CA-2038803-A1 (CA)
Inventor: LOCKWOOD DEAN H
IPC: A23B7/05
Filed: 1991-03-21
Abstract: A method of forming an ice glazing within the canopy  of  broccoli  florets  to preserve  the  floret structure and reduce fines loss.   The steps include individually  freezing  the  broccoli  florets,   and immersing the florets in water of a temperature and for an amount of time sufficient to form an ice glazing within the structure of the floret.   The method of glazing preserves the structure of the floret during processing and subsequent handling and reduces fines loss.
Patent CA-2040276-A1 (CA)
Title: Plastic chime overlay for fibre drum
Inventor: GORDON GERALD A
IPC: B29C69/02
Filed: 1991-04-11
Abstract: ABSTRACT OF THE DISCLOSURE         A corrosion resistent protective plastic overlay is intimately engaged with the chime of a fibre drum and extends from an inner edge portion thermally bonded to the drum lining over the bead and into the exterior chime groove.  The overlay is fusion bonded to the chime throughout the full extent of the surface-to-surface engagement therebetween.
Patent CA-2045856-A1 (CA)
Title: Ehf array antenna backplate
Inventor: WONG HARRY
IPC: H01Q23/00
Filed: 1991-06-27
Abstract: EHF ARRAY ANTENNA BACKPLATE                           ABSTRACT   An EHF array antenna backplate that integrates thermal cooling structure and signal processing structure together into one unified structure. In one embodiment, forced air is employed to conduct heat from active modules; while in another embodi-ment, embedded heat pipes are employed. The array backplate is made by using four layers. The layers are: a high density multichip interconnect board, a metal matrix com-posite motherboard, an integrated waveguide/cavity/cooling structure, and a metal ma-trix composite baseplate. Each module uses solder bumps to connect to the high densi-ty multichip interconnect board where DC power and control logic signal distribution takes place. The modules are soldered in four locations to the metal matrix composite motherboard through openings in the high density multichip interconnect board. EHF signals are coupled to the modules from a resonant cavity via probes that protrude through the high density multichip interconnect board. Probes are strategically located in the resonant cavity to pick up an EHF standing wave generated by slots that are part of a slotted planar waveguide EHF 16-way power divider network. The waveguide/ cavity/cooling structure is also the primary load-bearing member of the backplate.
Patent CA-2046860-A1 (CA)
Inventor: GAWAD MAHMOUD A
IPC: F21V15/00
Filed: 1990-12-21
Abstract: Abstract of the Disclosure A fluorescent luminaire lens frame is described wherein the frame is formed from a U shaped element, and a cross bar.  Each of the two elements are formed from single piece sheet metal blanks.  The frame includes hinge elements on the free ends of the U extending beyond the cross bar that may be coupled to a luminaire housing.  The frame joints are also structured with abutting and capturing structures to prevent rotation of the sides away from about a right angle.
Patent CA-2048053-A1 (CA)
Inventor: HAMPRECHT GERHARD
IPC: C07D251/42
Filed: 1991-07-29
Abstract: Abstract of the Disclosure: 2-Amino-4-fluoroalkoxy-1,3,5-triazines of the formula I    where R1 is hydrogen, alkyl, alkenyl, alkynyl; R2 is hydrogen, halogen, haloalkyl, trifluoromethoxy or chloro-difluoromethoxy and n is 0 or 1 are prepared as described.
Patent CA-2052877-A1 (CA)
Title: Double plate partition for a heat exchanger
Inventor: TOKUTAKE TOSHINORI
IPC: F28D9/04
Filed: 1991-10-07
Abstract: The ends of numerous tubes are connected to hollow headers so that they are in fluid communication with the headers. Slit shaped apertures are formed in the outside face of the headers in the direction of their circumference, and partitions are inserted through the apertures. Each partition is constructed out of two partition plates which fit into the header through the aperture in their super-imposed position. Alternatively, the partition plates may be connected integral at one end so that their uncon-netted ends tightly contact the edges of the slit shaped aperture. The partitions are then brazed to the header to become integral with it.
Patent CA-2053548-A1 (CA)
Title: Pyridoneindoaniline dye-donor element for thermal dye transfer
Inventor: EVANS STEVEN
IPC: B41M5/035
Filed: 1991-10-16
Abstract: PYRIDONEINDOANILINE DYE-DONOR ELEMENT FOR THERMAL DYE TRANSFER            Abstract of the Disclosure A dye-donor element for thermal dye transfer comprises a support having thereon a dye dispersed in a polymeric binder, the dye comprising a pyridone-indoaniline dye having the formula:                           wherein:      R1 and R2 each independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to about 6 carbon atoms; a substituted or unsubstituted cycloalkyl group having from about 5 to about 7 carbon atoms; a substituted or unsubstituted allyl group; a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms; or a substituted or unsubstituted hetaryl group;      or R1 and R2 can be joined together to form, along with the nitrogen to which they are attached, a 5- to 7-membered heterocyclic ring;      or either or both of R1 and R2 can be combined with R3 to form a 5- to 7-membered heterocyclic ring;      each R3 independently represents a substituted or unsubstituted alkyl group having from 1 to about 6 carbon atoms; a substituted or unsubstituted cycloalkyl group having from about 5 to about 7 carbon atoms;     a substituted or unsubstituted allyl group; substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms; a substituted or unsubstituted hetaryl group; alkoxy; aryloxy; halogen; nitro; cyano; thiocyano; hydroxy; acyloxy; acyl; alkoxycarbonyl; aminocarbonyl; alkoxycarbonyloxy; carbamoyloxy; acylamido ureido; imido; alkylsulfonyl; arylsulfonyl; alkylsulfonamido; arylsulfonamido; alkylthio arylthio or trifluoromethyl;     or any two of R3 may be combined together to form a 5- or 6-membered carbocyclic or heterocyclic ring;     or one or two of R3 may be combined with either or both of R1 and R2 to complete a 5-to 7-membered ring;     m is an integer of from 0 to 4; R4 and R5 each independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to about 6 carbon atoms; a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms; a substituted or unsubstituted hetaryl group; or an electron withdrawing group;     R6 represents hydrogen; a substituted or unsubstituted alkyl, aryl or hetaryl group as described above for R1 and R2; NH2, NHR1, NR1R2, NHCOR1, NHSO2R1 or OR1.
Patent CA-2053627-A1 (CA)
IPC: F28F1/40
Filed: 1991-10-17
Abstract: An internally enhanced heat transfer tube comprising a heat transfer tube including an internal surface and an internal diameter (D); a plurality of roughness elements on the internal surface of the heat transfer tube, each roughness element having a height (e) above the internal surface where the ratio of the height (e) to the internal diameter (D) falls within the range .004 ? e/D ? .045.
Patent CA-2053656-A1 (CA)
Title: Sodium formate fluidized polymer suspensions
Inventor: BURDICK CHARLES L
IPC: C08L71/02
Filed: 1991-10-17
Abstract: Fluidized aqueous suspensions of 15% or more by weight hydroxyethylcellulose, hydrophobically modified cellulose ether, hydrophabically modified hydroxyethyl,cellulose, methylcellulose, hydroxypropylmethylcellulose and polyethylene oxide are prepared by addition of the polymer to a concentrated sodium formats solution containing xanthan gum as a stabilizer.
Patent CA-2056528-A1 (CA)
Inventor: TAM KWOK C
IPC: G06T15/08
Filed: 1991-11-28
Abstract: RD-19564 PARALLEL PROCESSING METHOD AND APPARATUS FOR RECONSTRUCTING A THREE-DIMENSIONAL COMPUTERIZED TOMOGRAPHY (CT) IMAGE OF AN OBJECT FROM CONE BEAM PROJECTION DATA OR FROM PLANAR INTEGRALS A methods and apparatus is disclosed for 3D CT image reconstruction involving a conventional 2D CT reconstruction. A 3D image of the object is reconstructed sliceby-slice by employing, for each slice, a 2D reconstruction procedure, for example, filtered backprojection, on the values of the 2D projection images in the plane of the slice to calculate a 2D image of the object for each of the slices.