baber/WOPTO huggingface dataset:
Patent CA-2006129-A1 (CA)
IPC: H01J9/32
Filed: 1989-12-20
Abstract: DISTRIBUTED FEEDBACK LASER FOR FREQUENCY MODULATED COMMUNICATION SYSTEMS Abstract To overcome the deleterious effects of the nonuniform frequency modulation response in semiconductor lasers due to current injection in direct frequency modulation applications, it has been determined that the linewidth enhancement factor a be made as large as possible. In one embodiment, distributed feedback lasers well suited for frequency modulation lightwave communication systems are designed to have an integrated feedback element such as a  corrugation grating whose effective pitch is selected to cause the Bragg wavelength and, therefore, the laser operating wavelength to be longer than the wavelength at substantially the maximum gain or gain peak in the semiconductor structure without the grating. That is, the wavelength of the grating is effectively detuned toward the longer wavelength and lower energy side of the peak of the gain profile. Such detuning increases the linewidth enhancement factor in such a way that the nonuniform frequency modulation response and its effects are minimized and, in some cases, substantially eliminated.
Patent CA-2011649-A1 (CA)
Title: Connector seal
Inventor: ABILA ERNESTO M
IPC: F16J15/32
Filed: 1990-03-07
Abstract: ABSTRACT OF THE INVENTION      A connector seal is provided for the interposition between an access well, or hole, in a wall of a fluid containment apparatus and the outer surface of a conduit, or pipe, passing through that hole to transport fluid to the container without leaking.  The connector seal has as a main element a spring ring made from a resilient material such as carbon steel, alloy steel, or plastic, for delivering a radial static load to the connector seal upon its being exposed to compressive forces.
Patent CA-2012764-A1 (CA)
Title: Slide fastener slider
Inventor: TERADA YASUHARU
IPC: A44B19/26
Filed: 1990-03-22
Abstract: A slide fastener slider comprises upper and lower wings joined together at their one ends by a connecting neck and having respective lateral flanges, and a thermal insulating backing such as of plastics material substantially coextensive with the lower wing.  The backing is secured to the lower wing by injection-molding, rivetting, or snapping engagement of hooks on the backing with recesses in the lower wing.  Additionally, there is provided for the purpose of heat insulation an air accommodating pocket formed between the backing and the lower wing.
Patent CA-2015523-A1 (CA)
Title: Process for preparing perfluoroalkenyl-sulfonyl fluorides
Inventor: NAVARRINI WALTER
IPC: C07C303/22
Filed: 1990-04-26
Abstract: ABSTRACT OF THE DISCLOSURE Process for the synthesis of perfluoroalkenyl-sulfonyl fluorides of formula:                      Rf-CF=CF-S02F wherein: Rf is F or a perfluoroalkyl  of from 1 to 9 carbon atoms, consisting in bringing a perfluoroalkyl-(sulfonyl) fluoride) monofluoroacetyl-fluoride of formula Rf-CF2-CF(COF)SO2F into contact with  a reactant  constituted  by  a  carbonate of  a metal belonging to Groups IA,  IIA and IIB of the Periodical Table of the Elements at a temperature comprised within the range of from 150 to 400°C,  and then recovering the desired product.
Patent CA-2017565-A1 (CA)
Inventor: FURUKAWA TADAYASU
IPC: C07K5/093
Filed: 1990-05-25
Abstract: Disclosed is a feed composition for culturing fishes, which comprises a conventionally formulated fish feed with a peptide represented by the general formula (I) (see formula I) wherein Cys~Cys means a disulfide linkage of cysteinyls; each or R1, R2, R3 and R4 independently represents Y-L-glutamyl or glycyl; each of m, n, p and q is an integer of 0 or 1, provided that m, n, p and q are not simultaneously 0. The peptide in the feed composition is effective in treating and preventing hepatic disorders of cultured fishes.
Patent CA-2019541-A1 (CA)
Inventor: BANK GRAHAM
IPC: H04R9/00
Filed: 1990-06-21
Abstract: A ribbon transducer has the ends of its ribbon (10) held by end fixings which incorporate damping means. The end fixing may include a resilient support member (18)  fixed to the ribbon (10),  with the ribbon overlying a pad (22) of damping material and having its outer end held clamped, or alternatively left free.
Patent CA-2020509-A1 (CA)
Title: Chromium compounds and uses thereof
Inventor: REAGEN WILLIAM K
IPC: C08F4/22
Filed: 1990-07-05
Abstract: Novel chromium-containing compounds, such as, for example, chromium pyrrolides, are prepared by forming a mixture of a chromium salt, a metal amide, and an electron pair donor solvent, such as, for example, an ether. These novel chromium-containing, or chromium pyrrolide, compounds can be used either unsupported or supported on an inorganic oxide support to trimerize and/or polymerize olefins.
Patent CA-2023498-A1 (CA)
IPC: H04N5/45
Filed: 1990-08-17
Abstract: Abstract of the Disclosure Current television signals are converted into sequential scanning signals in a sequential scanning conversion circuit and supplied to a memory circuit.          In the memory circuit, the sequential scanning signals are converted into interlaced scanning signals, and then the signals are time-compresed and converted into small screen signals.  High-definition television signals decoded by a MUSE decoder are supplied to a selector as master screen signals.  In the selector, the master and slave screen signals are selectively produced to form a picture-in-picture signal.
Patent CA-2023802-A1 (CA)
Title: Stable emulsions containing amino polysiloxanes and silanes for treating fibers and fabrics
Inventor: YANG SUE-LEIN L
IPC: D06M15/643
Filed: 1990-08-22
Abstract: A stable aqueous emulsion compositions containing an amino-functionalized polyorganosiloxane containing at least two amino-functionalized groups per molecule, one or more silanes and optionally a hydroxy terminated polydiorganosiloxane; textiles treated with the stable aqueous emulsion compositions; and processes for the preparation of stable aqueous emulsions of amino-functional polyorganosiloxanes by the addition of one or more hydrolyzable-functional silanes to an aqueous emulsion containing an amino-functional polyorganosiloxane and optionally, a hydroxy terminated polydiorganosiloxane.
Patent CA-2024788-A1 (CA)
Title: Air pressure operated soap supply system
Inventor: CSERI ZOLTAN
IPC: A47K5/12
Filed: 1990-09-06
Abstract: AIR PRESSURE OPERATED  SOAP SUPPLY SYSTEM      Abstract of the Disclosure An air pressure operated soap supply system provides liquid soap under pressure to one or more automatic soap dispensers, each of which dispenses a metered amount of soap, upon command from an electronic sensor.  The system includes a soap supply, an air pressure supply and the one or more automatic soap dispensers.  The soap supply has an air inlet and a soap outlet, an air chamber connected to the air inlet and a soap chamber connected to the soap outlet.  The air cham-ber applies pressure to the soap chamber to push soap out of the soap outlet.  The air pressure supply is connected to the soap supply air inlet and there is a pressure switch connected therebetween.  The pressure switch and air supply function to supply a generally constant air pressure to the soap supply air inlet.  The one or more automatic soap dispensers are connected to the soap supply soap outlet whereby each of the soap dis-pensers can supply a metered amount of soap upon command from an electric sensor associated with the dispenser.
Patent CA-2024832-A1 (CA)
Title: Non-invasive force analysis system
Inventor: PARKER JOHN A
IPC: G01L1/24
Filed: 1990-09-07
Abstract: ABSTRACT          In the past in order to measure the applied forces to an object contactwith the object, modification of the object, or adding a heavy or a bulky addition to the object was necessary.  In the described method and apparatus for the non-invasive measurement of torque induced strain in an object, the photoelastic properties of certain materials is utilized. By attaching a small lightweight patch of photoelastic material to an object in such a manner as to allow it to be strained with the object, applied forces can be monitored, by observing the changes in the optical characteristics of the strained patch.  The observed changes can then be correlated into a value for the applied forces at a remote location. Since all that is necessary for observation is fiber optic cables, this measurement system is almost completely non-obtrusive.
Patent CA-2026867-A1 (CA)
Title: Light fixture
Inventor: ANDERSON HARRY B
IPC: F21Y101/00
Filed: 1990-10-03
Abstract: A light fixture has a housing having an axis and a light source for directing light into the housing along the housing axis. A first section of the housing occupies a first portion of the housing's perimeter and includes a light guide material. A second section of the housing occupies a second portion of the housing's perimeter and includes light extraction structures and a Fresnel lens for beam shaping.
Patent CA-2026897-A1 (CA)
Title: Doctor bar for the volumetric metering of flowable materials onto a travelling web
Inventor: KNOP REINHARD
IPC: D21H23/58
Filed: 1990-10-04
Abstract: ABSTRACT OF THE DISCLOSURE   A doctor bar for volumetric metering of a flowable coating material onto a paper or cardboard web has an elongated body whose generally cylindrical periphery is defined by a surface distribution of discrete rises separated by troughs. Therises have outer faces lying in an imaginary surface coaxial with the body and which are straight in axial cross section. The total area of the faces constitutes 10% to 50% of the area of the cylindrical imaginary surface and the profile depth of the rises is between 30µm and 150µm.
Patent CA-2028469-A1 (CA)
Inventor: KOSUP GILBERT G
IPC: B01F15/04
Filed: 1990-10-24
Abstract: A  liquid  proportioning  system  constructed according to the principles of the present invention mixes a primary liquid with liquid additive from at least one liquid additive reservoir.  The system includes a manifold in which the primary liquid and the liquid additive are mixed.  The manifold has an outlet for discharging the mixture, a first inlet for receiving the primary liquid and a second inlet for receiving liquid additive.  A plurality of conduits each carry the liquid additive to the manifold from the liquid additive reservoir.  Each conduit delivers the liquid additive to the manifold at  a   different rate under substantially the same operating conditions so that the connection of each conduit to the second inlet results in a different predetermined mixing proportion.   Quick connect couplings connect each conduit to the second inlet of the manifold so that the   conduits   may  be  quickly connected to and disconnected from the second inlet to change the mixing proportion.
Patent CA-2029051-A1 (CA)
Title: Wavelength tunable optical filter
Inventor: CIMINI LEONARD J
IPC: G02F1/00
Filed: 1990-10-31
Abstract: WAVELENGTH TUNABLE   OPTICAL FILTER Abstract A wavelength tunable optical filter having a characteristic single transmission peak for enhanced tunability comprises a phase control section positioned between a Distributed Bragg Reflector section and a high reflectivitymirror. The Distributed Bragg section comprises a periodic grating positioned over an end portion of a passive waveguide region whereas the phase control section comprises the portion of the passive waveguide region located between the grating and the mirror. Continous tunability in the range of several THz may be achieved by controlling the refractive index in either the phase control or distributed Bragg reflector section. The optical filter is expected to have a frequency switching time of a few nanoseconds and, thus, is applicable to both transmission and switching applications.
Patent CA-2029499-A1 (CA)
Title: Process for preparing n-alkylaminophenols
Inventor: MAKI HIROSHI
IPC: C07C213/02
Filed: 1990-11-07
Abstract: A prosess for preparing an N-alkylaminophenol is disclosed, comprising subjecting an aminophenol to reductive alkylation with an aldehyde or a ketone in the presence of an organic solvent, a catalyst for reduction, and hydrogen, wherein the catalyst for reduction comprises platinum and at least one metal element selected from metal elements belonging to the IB group, IIB group, IVB group, VB group, and VIB group of the Periodic Table, supported on activated carbon, or comprises palladium and at least one metal element selected from metal elements belonging to the IB group, IIB group, IVB group, VB group and VIB group of the Periodic Table, supported on activated carbon, or comprises platinum or palladium catalyst supported on activated carbon, which has been contact treated with a solution containing at least one metal element selected from metal elements belonging to the IB group, IIB group, IVB group, VB group, and VIB group of the Periodic Table.
Patent CA-2032091-A1 (CA)
Title: Microbial reduction of benzazepine and benzothiazepine derivatives
Inventor: PATEL RAMESH N
IPC: C12P17/16
Filed: 1990-12-12
Abstract: HA466a MICROBIAL REDUCTION OF BENZAZEPINE AND BENZOTHIAZEPINE DERIVATIVES Abstract of the Disclosure A novel process comprises reducing a benzazepine or benzothiazepine at the 3-position in d-cis configuration by treatment with reductase-supplying microorganisms or enzymes derived therefrom. The process can be catalyzed in a single stage by growing microbial cultures or in a two-stage fermentation/transformation by resting cell-suspensions. The enzymes derived from the microorganisms can be used in free state or immobilized form. The microorganisms and enzymes catalyzes the specific reduction with 90 to 99% conversion efficiency to 99% or greater optical purity of the desired enantiomer.
Patent CA-2032476-A1 (CA)
Title: Contaminant transport apparatus
Inventor: WALTER SCOTT D
IPC: B01D47/06
Filed: 1990-05-04
Abstract: An apparatus and method for transporting hazardous, toxic or nuisance materials from the controlled chambers of removal sites to disposal sites and containing these materials by controlling the environment within the cargo area of a transport vehicle and for some distance outside it. The apparatus comprises a cargo chamber (12) to control leakage and air flow, a regulated air handler (22) to maintain a predetermined vacuum pressure within the cargo area relative to outside ambient pressure, a filtering system (40) to trap air borne particles before exhausting into the outside environment and a wetting means (52), filter means (30, 32, 34) and containment process for larger contaminates. The unit is self sufficient to provide its own generated electricity, liquid flow supply and automated control process enabling the containment system to function under stationary or mobile conditions for extended periods.
Patent CA-2033293-A1 (CA)
Title: Active energy ray-curable composition and applicable method
Inventor: HASHIMOTO YUTAKA
IPC: C08F2/46
Filed: 1990-12-27
Abstract: The composition of the present invention is curable by active energy ray. It is a mixture including a coupling agent, an active energy ray-curable compound and water.      A glass article will show improved mechanical strength if it is coated with the composition of the present invention and irradiated with active energy ray to cure the coating.
Patent CA-2033585-A1 (CA)
Title: Nestable cot and end connector therefor
Inventor: KELLY RAY G
IPC: A47C19/20
Filed: 1991-01-03
Abstract: Abstract of the Disclosure A nestable cot (C1) has a web (3) of material on which an occupant of the cot can lay.  The web is attached to a frame (F) which includes a plurality of rods (R1-R4) one of which extends along each side of the web.  End connectors (5) are provided for connecting respective ends of adjacent rods to interconnect the rods and complete the frame.  Each end connector includes an elongate housing (7) having an opening (25, 27) at each end in which respective ends of adjacent rods are received.  The cot is supported in an elevated position off the ground by a pedestal (33) formed intermediate the length of the housing.  The pedestal projects inwardly from an inner face (19) of the housing and extends downwardly a distance sufficient to elevate the web of material off the ground.  A pad (49) is attachable to the bottom of the pedestal.  The cot can be sat upon another cot (C2) with the base (51) of the pad of the upper cot resting upon the upper surface (35) of the pedestal of the lower cot whereby the upper cot nests in the lower cot.
Patent CA-2034160-A1 (CA)
Inventor: ABE TOSHIO
IPC: B01J19/12
Filed: 1991-01-15
Abstract: An improved image heating apparatus using a plasma lamp is disclosed.  The apparatus comprises at least one rotary elliptical mirror having a reflection surface of a rotary elliptical body at the inside; a plasma lamp disposed at a first focal point of the rotary elliptical mirror; a member for supporting the plasma lamp; an electric wave shielding member provided inside the rotary elliptical mirror; a cavity resonator defined by the rotary elliptical mirror and the electric wave shielding member, and adapted to accommodate the plasma lamp; a high frequency oscillator adapted to supply electromagnetic wave to the cavity resonator via a wave guide; and a test sample disposed at a second focal point of the rotary elliptical mirror.
Patent CA-2034340-A1 (CA)
Title: Method for making organic carbonates
Inventor: KING JOSEPH A JR
IPC: C07C68/00
Filed: 1991-01-17
Abstract: RD-19,421 METHOD FOR MAKING ORGANIC CARBONATES                 Abstract of the Disclosure A method is provided for making an organic carbonate such as, a diaryl carbonate by healing a mixture under elevated conditions of temperature and pressure comprising an arylhydroxy compound, such as phenol, carbon monoxide, and oxygen in the presence of a palladium catalyst and carbon dioxide as a desiccant.
Patent CA-2035817-A1 (CA)
Inventor: KUBIERSCHKY STEFAN
IPC: A63C17/22
Filed: 1991-02-06
Abstract: Abstract of Disclosure:            A chassis arrangement has a steerable element, in particular a wheel, steerable on tilting of said chassis relative to the ground. The steerable element is mounted on the chassis via first and second links. The first link is pivotally supported at one end on said chassis and supports a substantially horizontally disposed axle for said steerable element. The second link is pivotable about an axis disposed parallel or oblique to the ground and substantially intersecting the contact area where, in the straightahead position of the steerable element the latter contacts the ground. Means is provided between said first and second links defining a substantially vertical axis which substantially intersects the first said axis at said contact area. The steerable element is swivellable about said vertical axis to effect steering on tilting of said chassis due to pivotal movement of said second link about the first said axis under the moment created by the ground pressure and its moment arm about the first said axis resulting from tilting of the chassis. The chassis arrangement has the special feature that said means provided between said first and second links defining said substantially vertical axis is disposed in the centre region of said steerable element, in the region of said horizontally disposed axle.
Patent CA-2036411-A1 (CA)
Inventor: BOTT KASPAR
IPC: C08G65/32
Filed: 1991-02-15
Abstract: Polyetherpolycarbonatediols are disclosed, which comprise (A) from 3 to 63.7 mol % of units derived from a polyoxytetramethylenediol;  (B) from 63.7 to 3 mol % of units derived from a polyoxy-C2-C8-alkylenediol other than (A), an aliphatic alkanediol of from 2 to 14 carbon atoms, an alicyclic alkanediol of from 3 to 14 carbon atoms or an alkylene oxide of  2 or 3 carbon atoms, or a mixture thereof; and (C) from 33.3 to 50 mol % of units derived from phosgene,  a dialkyl  carbonate  having  C1-C4-alkyl groups or a cyclic carbonate having C2-C4-alkylene bridges, or a mixture thereof.   These compounds are useful for producing thermoplastic polyurethanes,  polyetheresters, polyetheramides, cellular polyurethane elastomers, casting elastomers and fibers.
Patent CA-2037457-A1 (CA)
Inventor: DESCHENES EMMANUEL
IPC: A01G13/02
Filed: 1991-03-04
Abstract: Il est généralement reconnu que certains arbustes, plants et fleurs requièrent une protection contre le froid et la neige durant la saison froide et la façon habituelle de leur accorder cette protection se fait par l'utilisation d'abris temporaires saisonniers. Dans la présente invention, nous avons conçu un abri facilement et rapidement montable et démontable construit a partir de tiges souples qui une fois assemblées forment un bâti squelettique solide servant a supporter un revêtement maintenu en place par accrochage aux pièces du bâti. Dans la présente invention, les tiges de support du bâti sont fixées au sol a leur base par enfichement dans des piquets de sol, des tiges de pourtour et des tiges de contreventement venant compléter l'assemblage du bâti. A chaque croisement de deux tiges une pastille de raccord des tiges ou un ressort de raccord des tiges est utilisé pour assujettir les tiges l'une a l'autre, les pastilles de raccord étant munies de goulottes passe-tiges et d'enclencheurs tandis que les ressorts de raccord sont munis de déformations servant à enlacer les tiges ainsi que de bras ressorts de retenue. La pastille de raccord est munie a sa façe extérieure d'une patte servant à retenir le revêtement sur le bâti et le piquet de sol est aussi muni d'une patte servant au même usage. Une rondelle de blocage s'installe sur l'une et l'autre des pattes, empêchant le revêtement de se dégager.
Patent CA-2037874-A1 (CA)
Inventor: YAMAGUCHI YASUHIRO
IPC: A61J3/07
Filed: 1991-03-08
Abstract: ABSTRACST OF THE DISCLOSURE     A filling packer comprises a molding station for molding a web of moldable film to form a continuum of molded articles, a filling station for filling a given product in said continuum of molded articles formed at said molding station, a supplying means of a web of sealing film for closing said continuum of molded articles, a labeling device for sticking labels to said web of sealing film, and a sealing station for having a web of sealing film with said lables stuck thereto said continuum of molded articles.
Patent CA-2038447-A1 (CA)
Inventor: IKEDA HIROSHI
IPC: G11B23/50
Filed: 1991-03-25
Abstract: ABSTRACT OF THE DISCLOSURE    In a magnetic disk jacket including a liner partly welded to the inner surface of a case and adapted to clean the surface of a magnetic disk, the liner contains 0.001 to 0.05g of a polydimethylsiloxane derivative having a viscosity of from 50 to 3000 cSt at 25°C and having a polyether group or both polyether group and epoxy group in a molecule per 1 g of the liner.
Patent CA-2038936-A1 (CA)
Title: Method of producing plastics from crude fats and oils
Inventor: FRISCHE RAINER
IPC: C07C29/03
Filed: 1990-08-01
Abstract: Abstract The present invention relates to a method of producing plastic comonomers and plastics from fats and oils containing unsaturated fatty acids, crude unsaturated fats and oils being oxidised by performic acid or peracetic acid to give epoxy or hydroxy compounds and  the  latter  being  then  reacted  to  give  polymers,  using bifunctional or multifunctional compounds that are capable of reacting with epoxy or hydroxy groups.