baber/WOPTO huggingface dataset:
Patent CA-2006480-A1 (CA)
IPC: G01F23/26
Filed: 1989-12-21
Abstract: ABSTRACT      A non-intrusive fluid  level detector  including  a  single point  capacitive  sensor mounted on the outside surface of a receptacle such that capacitive principles can be utilized to sense the level of a  liquid contained within the receptacle.          The  sensor  assembly  is  disposed  in  a  substantially  fixed position on  the exterior wall of the receptacle wherein the dielectric  effect  of  the  liquid   changes   the  effective capacitance of the sensing capacitor  as the liquid rises and falls  within  the  receptacle.    This  change  in  effective capacitance is detected by electronic circuitry included in the detector device.  In one embodiment, the fluid level detector is directly mounted to a completely non-conductive receptacle.          In another embodiment, the fluid level detector is mounted to a non-conductive window which is an integral part of a receptacle fabricated out of a conductive material.
Patent CA-2006999-A1 (CA)
IPC: H01B11/20
Filed: 1990-01-02
Abstract: ABSTRACT    An electrical transmission cable incorporating coaxial cables, power supply cables, data conductors and telephone conductors suitable for use in residential wiring is disclosed.  Cable comprises a bundle configuration in which coaxial conductors are disposed in a center of a round bundle between data and telephone conductors to reduce the continuation of signals in the data and telephone conductors.
Patent CA-2011948-A1 (CA)
Title: Production of thiophene-2, 5-dicarboxylic acid diesters, tetrahydrothiophene-2, 5-dicarboxylic acid diesters and dibenzoxazolylthiophenes
Inventor: GODA HIROSHI
IPC: C07D333/28
Filed: 1990-03-12
Abstract: There is disclosed a method of producing a thiophene-2,5-dicarboxylic acid diester represented by the formula (see fig. I) wherein R' represents an alkyl of 1-8 carbons, a phenyl, a substituted phenyl or benzyl, which comprises:      halogenating a tetrahydrothiophene-2,5-dicarboxylic acid diester represented by the formula (see fig. II) wherein R' is the same as before, with a halogenating agent selected from the group consisting of halogens and sulfuryl halides in an amount of 2-4 moles per mole of the tetrahydrothiophene-2,5-dicarboxylic acid diester; and then dehydrohalogenating the resultant halogenated tetrahydrothiophene-2,5-dicarboxylic acid diester in the presence of an alcohol, a base, a metal or a metal ion.      There is also disclosed a method of producing tetrahydrothiophene-2,5-dicarboxylic acid diester and dibenzoxazolyl thiophenes.  Some of the thiophene-2,5-dicarboxylic acid diesters and tetrahydrothiophene-2,5-dicarboxylic acid diesters are novel.
Patent CA-2012598-A1 (CA)
Title: Determination of refractive index and thickness of thin layers
Inventor: HICKEL WERNER
IPC: G01N21/41
Filed: 1990-03-20
Abstract: - 8 -          O.Z. 0050/40663 Abstract of the Disclosure:  The refractive index and thickness of ultrathin layers < 1 µm in thickness are determined  by  recording the layers, which  have  been applied  to  a solid support, by surface plasmon micro-scopy as a function of the angle of incidence of the incident laser beam, the method making it possible to determine layer thicknesses with a vertical resolution ? 0.1 nm and a simultaneous lateral resolution ? 5 µm.
Patent CA-2015751-A1 (CA)
Title: Methods for producing and preserving a silver halide photographic light-sensitive material
Inventor: SAKATA HIDEAKI
IPC: G03C1/76
Filed: 1990-04-30
Abstract: Abstract A method of preparing a light sensitive silver halide phtographic material is disclosed. The photographic material comprises a polyester support having a hydrophobic polymer layer containing a vinylidene chloride copolymer and at least one hydrophilic polymer layer. The method comprises steps of coating  a  hydrophilic  polymer  layer  onto  the  polyester support, drying the layer until a water content of the layer reaches 60 wt %, and contacting the layer with air having a relative humidity of 5 to 25% for a period 5 seconds to 10 minutes. The photographic material according to the method has such a physical characteristics as dimensional stability for long time storage or anti-cracking of the photographic layer at the preparation period. It is suitable for printing use.
Patent CA-2017506-A1 (CA)
Title: Adhesive bandage
Inventor: EISENRING MARTIN
IPC: A61F13/00
Filed: 1990-05-24
Abstract: ABSTRACT OF THE DISCLOSURE     An adhesive bandage having a reservoir embedded between a cover layer and an upper layer of a compress of an adhesive bandage.  The reservoir may be located either within the compress or between the compress and the cover layer.  An active ingredient dissolved in a liquid or pasty substance is contained in the reservoir.  The material of the reservoir is impermeable to penetration by the active ingredient and the substance in which it has been dissolved.          The reservoir can be broken under finger pressure and the active ingredient then soaks into the compress.     F-188                               jaf/2
Patent CA-2019590-A1 (CA)
Inventor: HEISE LORNE
IPC: E03B7/12
Filed: 1990-06-25
Abstract: A heating system for a fluid duct such as a water supply pipe utilizes a self-limiting heater cable located within the duct and an insulation around the duct.  The cable is inserted through a T-fitting having a scaling member with oppositely directed conical surfaces to engage the fitting and seal against the cable.
Patent CA-2019914-A1 (CA)
Title: Dehydrofluorination and dehydrogenation of fluorinated alkanes
Inventor: ELSHEIKH MAHER Y
IPC: C07C21/18
Filed: 1990-06-27
Abstract: Fluorinated alkanes are converted into corresponding unsaturated dehydrofluorination  products by  contact with a catalyst bed containing .gamma.-fluorided alumina in the presence of a co-reactant gas at a reaction temperature of from about 200°C to about 700°C, the catalyst bed having been prepared  by the  steps of  (a)  flowing air over a catalyst bed containing .gamma.-alumina for a contact time of from about 5 seconds to about 150 seconds, at a temperature of from about 600°C to about 750°C,  and  (b)  thereafter flowing hydrogen fluoride over the air-treated catalyst bed at elevated temperature to convert the .gamma.-alumina to .gamma.-fluorided alumina.   The co-reactant gas contains oxygen, carbon  dioxide  or  mixtures  thereof.    The  .gamma.-fluorided alumina-containing catalyst may also be utilized to convert 1,1-difluoroethane  to  its  dehydrogenation  product, vinylidene  fluoride  at  a  reaction  temperature  of  from about 300°C to about 700°C.
Patent CA-2023061-A1 (CA)
Inventor: MENCHETTI ROBERT J
IPC: E04B2/78
Filed: 1990-08-10
Abstract: Montant extensible composé de deux montants en Z essentiellement identiques chacun ayant des bords opposés de largeurs sensiblement différentes. Les extrémités externes des bords comprennent des rebords orientés vers l'intérieur. L'âme de chaque montant comporte une moulure centrale faisant saillie en direction du côté du bord le plus large. Deux montants en Z sont reliés par leurs bords étroits maintenus dans le passage formé par le bord large, le rebord et l'âme correspondants du montant opposé. La présente invention fait également état d'une méthode de raccordement de deux montants en Z et d'une méthode permettant d'ériger des cloisons creuses avec ces montants extensibles.
Patent CA-2023443-A1 (CA)
Inventor: PEREZ FRANCISCO S
IPC: A01K11/00
Filed: 1990-08-17
Abstract: \     ABSTRACT     Apparatus for fixing identification tags on animals, composed of two symmetric parallel sections,  each of which has, in its central part, a gap, both sections being connected to each other by means of rectangular metal strips that have the same form, overlapping and crosswise to each other, these being connected by a pin which carries a spring the ends of which are fixed to pins which connect the metal strip to the corresponding section of the apparatus in a rotatable manner, mentioned metal strips having, at their opposite ends,  "L"-shaped gaps which have pins perpendicular to the sides of the corresponding section,  that go through mentioned sides, and are fixed to the sides in such a manner as to, when the two sections close upon closing the handle ends of the appara-tus,  the tag is closed,  at which instant the corresponding pins reach the juncture of the two sides of the "L"-shaped gap, the pin afterwards proceeding up the shorter leg of the "L"-shaped gap as pressure is maintained on the handles, re-sulting in the pincer end of the apparatus to open and facili-tate  the  removal  of the  tag while the handle ends remain closed.
Patent CA-2028783-A1 (CA)
Inventor: ROGERS WESLEY A
IPC: H01M10/48
Filed: 1990-10-29
Abstract: Abstract An apparatus for monitoring the state of charge  of  a  battery  having  a  shunt  resistor connected  in  series  with  a  battery  and  an integrating circuit connected across the terminals of the shunt resistor is provided.  The integrating circuit  includes  a  memoriode  having  a  large capacitance and the capability to store charge for long periods of time, so that the integration can be performed along the same curve even if power to the integrating circuit is interrupted.
Patent CA-2029791-A1 (CA)
Title: Coherent optical-fibre communication system using polarisation-diversity transmission
Inventor: POGGIOLINI PIERLUIGI
IPC: H04B10/2507
Filed: 1990-11-13
Abstract: Abstract By continuously varying the polarisation state of a modulated optical carrier at the transmitter over a period at least equal to the symbol period of the modulation, a coherent optical-fibre transmission system can be rendered  insensitive to  fluctuations  in the polarisation state of the electromagnetic field as the carrier propagates along a single-mode optical fibre. This  technique  avoids  spectral  broadening  of  the intermediate frequency signal at the receiver, while ensuring the reception of half the power from the fibre.
Patent CA-2035077-A1 (CA)
Title: Reaction injection molded elastomers prepared from amine terminated polyethers, amine terminated chain extender, a polycarbonate diol containing quasiprepolymer
Inventor: GRIGSBY ROBERT A JR
IPC: C08G18/12
Filed: 1991-01-28
Abstract: ABSTRACT                            (D#80,914-F) The invention relates to reaction injection molded elastomers derived from high molecular weight amine terminated polyethers, an aromatic diamine chain extender and a quasi-prepolymer made from an excess of polyisocyanate reacted with polycarbonate polyols and polyether polyols.
Patent CA-2035217-A1 (CA)
Title: Launderable prosthetic device
Inventor: MANDELKERN ISABEL
IPC: A61F2/50
Filed: 1991-01-29
Abstract: A launderable prosthetic device for camouflaging missing or deformed human body mass or parts comprises a plurality of layers which are sized, shaped and interconnected to form a composite structure that, when partially compressed, assimilates the size, shape and resiliency of the camouflaged body mass. A soft inner liner provides an interface between the composite structure and the human body surface and a smooth outer shield liner provides an interface between the composite structure and an abutting outer garment. The liners are joined to enclose the composite structure and cooperate to maintain the composite structure in a partially compressed state. Randomly spaced openings in the layers provide ventilation for the body surface abutting the prosthetic device. In one embodiment of the device, the layers are progressively sized laterally larger and opposite sides of each of the layers are joined to respective sides of the other layers so as to form a bowed construction adapted to fit a curved surface of a user.
Patent CA-2036377-A1 (CA)
Title: Double axial gradient lens and process for fabrication thereof
Inventor: BLANKENBECLER RICHARD
IPC: G02B3/00
Filed: 1990-07-11
Abstract: DOUBLE AXIAL GRADIENT LENS AND PROCESS FOR            FABRICATION THEREOF                ABSTRACT OF THE DISCLOSURE      A monolithic double axial gradient lens (30) is provided.  The lens has an optic axis and three sections perpendicular to the optic axis: a first section (34) having a first graded index of refraction profile and having an outer surface, a middle section (32) having a second graded index of refraction profile, and a third section (36) having a third graded index of refraction profile and having an outer surface.  A gradient in the index of refraction is provided in at least the first and third sections.  As a result of appropriate selection of gradients, spherical and chromatic aberrations are elimi-nated or at least reduced, and thermal dependency of optical properties is minimized.
Patent CA-2037461-A1 (CA)
Title: Privacy ringing apparatus
Inventor: SPIRO STEPHEN J
IPC: H04M3/16
Filed: 1991-03-04
Abstract: PRIVACY RINGING APPARATUS                ABSTRACT OF TEE DISCLOSURE         Apparatus for interfacing a telecommunications device with a divided party line comprises means (82) for blocking a signal path and means (90, 94) for detecting the polarity and the frequency of a ring signal being propagated along the signal path.  Further means (90, 94) for determining if the polarity corresponds with a reference polarity and the frequency falls within a predetermined frequency range is provided.  The apparatus further comprises means (98, 100, 102), responsive to the polarity and frequency determining means, for bypassing the blocking means if the polarity and frequency correspond with the reference values.
Patent CA-2041500-A1 (CA)
Title: Device for manipulating drop wires for warp-thread drawing-in machines
Inventor: JAEGER SILVIO
IPC: D02H5/00
Filed: 1991-04-30
Abstract: Abstract The device contains magazines  (16)  for accommodating drop-wire stacks (LA) and transport means for feeding the drop-wire stacks (LA) to a separating station where the drop wires are singularised. The transport means contain a first path (11) for feeding the full magazines (16) to the  separating  station  and  a  second  path  (21)  for returning the empty magazines (16) from the separating station. In addition, means (22, 33) are provided for transferring the empty magazines from the first to the second path.      Largely automatic feeding of the warp-thread drawing-in machine with drop wires is made possible by this device.      (Fig. 3)
Patent CA-2042031-A1 (CA)
Title: Asynchronous time division multiplex switching system
Inventor: TURNER ALEC J
IPC: H04L49/111
Filed: 1990-09-05
Abstract: (57) Abstract This invention relates to an ATDM switching comprising a serial to parallel converter (100) arranged to receive in-coming packets of data (which include their own routing information) from several input ports (107) in serial formal and deliver them, in parallel format, to a Random Access Memory (RAM) (101, 102) in such a way that the packets form queues within the memory, one for each output port.  Packets are then transferred in parallel format, one from each queue in turn, to a parallel to serial converter (105) which delivers them to their respective output ports (109) in serial format.  The arrangement is such that when the memory becomes full the system can accommodate incoming packets by overwriting data in the longest queue, a tech-nique that can significantly reduce the total number of packets lost during long term operation.
Patent CA-2045784-A1 (CA)
Inventor: IYER SHRIDHAR
IPC: B29B15/10
Filed: 1991-06-27
Abstract: A method and system for spreading a tow of fibers (12) using the acoustic energy from a speaker (16a) or other vibrating device for a gaseous medium over which the tow passes as the fibers zig-zag between rods (16d) is described.  The spread tow of fibers are produced at high speed with uniform spacing and are used to make composites with plastics.
Patent CA-2046038-A1 (CA)
Inventor: HANSEN FRITS P U
IPC: G05D16/06
Filed: 1991-07-02
Abstract: A two-step   reduction   valve   especially   for   gas cylinders.            ABSTRACT        A two-stage reduction valve for gaseous fluids consists  of  a  high-pressure  assembly  with  a  high-pressure diaphragm (10) actuating a valve member dis-posed in the throat of a gas cylinder and of a low-pressure assembly with a likewise diaphragm-operated valve  member  (21)  positioned  in  a  gas  duct  (18) extending from the high-pressure assembly. A closing rod  (30)  connected with an operating handle  (41) restrictedly displaceably connected with a diaphragm spindle  (14)  firmly connected with the high-pressure diaphragm (10) and has at its upper end an essentially cylindrical bore (43) to displaceably receive the lower end of the closing rod (30). The upward circular mouth (44) of the bore (43) has a reduced diameter and the closing rod (30) has at its lower end a head (45) with a width larger than said reduced diameter but with such a shape that  it may be inserted into the bore  (43) through the mouth (44) of the bore with the closing rod (30) inclined in relation to the axis of the diaphragm spindle (14),  but when inserted it is prevented from being pulled out from the bore.        (Fig. 2).
Patent CA-2046762-A1 (CA)
Title: Polybutylene terephthalate resin composition
Inventor: MOCHIZUKI MITSUHIRO
IPC: C08K5/103
Filed: 1991-07-11
Abstract: To provide a polybutylene terephthalate resin composition which is freed from the troubles due to a poor bite into pellets in injection molding to thereby enable a prolonged stable molding thereof while retaining excellent mold release characteristics. A composition comprising (a) 100 parts by weight of polybutylene terephthalate and (b) 0.01 to 10 parts by weight of a sorbitan ester of a fatty acid having at least 12 carbon atoms.
Patent CA-2047198-A1 (CA)
Title: Thermostable acid protease from sulfolobus acidocaldarius and gene
Inventor: TANG JORDAN J N
IPC: C12N9/52
Filed: 1990-02-22
Abstract: A thermostable, very acidic protease, which has been named thermopsin, was purified to homogeneity from the culture medium of Sulfolobus acidocaldarius by a five-step procedure including column chromatographies on DEAE-Sepharose CL-6B, phenyl-Sepharose CL-4B, Sephadex G-100, MonoQ (FPLC), and gel filtration (HPLC). The enzyme is a single polypeptide chain having proteolytic activity over pH range 0 to 11 at temperatures between 0 and 100·C, with maximal activity at approximately pH 2 and 90·C. Antibodies directed against thermopsin have been prepared. Through studies using various aspartic protease inhibitors, thiol and metalloprotease inhibitors, and serine protease inhibitors, it was determined that, although similar to some aspartic proteases, the active site of thermopsin is clearly not identical to that of other aspartic proteases. Thermopsin hydrolyses the following bonds: Leu-Val, Leu-Tyr, Phe-Phe, Phe-Tyr, and Tyr-Thr, indicating that the specificity of thermopsin is similar to that of pepsin for the large hydrophobic residues at both sides of the scissile bond. In addition, thermopsin is resistant to detergent inactivation, the protein retaining proteolytic activity even in the presence of high concentrations of sodium dodecyl sulfate.
Patent CA-2050668-A1 (CA)
IPC: F26B11/04
Filed: 1991-09-04
Abstract: ABSTRACT OF THE DISCLOSURE        A plurality of electronic components, which have been washed with water, are introduced into a drum-type container, and the container is decompressed and rotated about a horizontally directed central axis so as to stir the plurality of electronic components.  The container may be at least partially dipped  in a heated liquid bath, so that the container is heated by the liquid.
Patent CA-2051918-A1 (CA)
Title: Apparatus for macerating meat
Inventor: ANDERSON JAMES E
IPC: A22C9/00
Filed: 1991-09-20
Abstract: APPARATUS FOR MACERATING MEAT                  Abstract of the Disclosure An apparatus for macerating meat-type products includes a pair of counterrotating shafts, each of which contains a one-piece arbor having an integral assembly of alternating radially projecting and axially extending teeth members and spacer members.  A plurality of open channels are defined by the spacer members disposed between adjacent radially projecting teeth members. Each of the teeth members has a peripheral outer edge which penetrates the products passing through the counterrotating arbors in the axial plane.
Patent CA-2053168-A1 (CA)
Inventor: LYONNET DANIEL
IPC: F24C15/20
Filed: 1991-10-10
Abstract: Le dispositif comprend une plaque de cuisson, chauffée par un moyen électrique installé au-dessous et/ou au-dessus. Dans le même bloc se trouve intégré un ensemble de filtration et de désodorisation des fumées émises lors de la cuisson, avec une prise d'aspiration disposée au voisinage de la plaque et un aspirateur. L'air chaud épuré est recyclé pour être dirigé à nouveau au niveau de la plaque de cuisson, en regard de la prise d'aspiration. L'ensemble de filtration et de désodorisation peut comprendre un filtre électrostatique associé à un filtre à charbon actif. L'air chaud épuré et aspiré peut encore traverser un humidificateur avant d'être recyclé.
Patent CA-2053452-A1 (CA)
Inventor: SAALASTI TEIJO
IPC: F26B11/04
Filed: 1991-10-15
Abstract: The object of the invention is to provide a continuously operating drum-type press drier, especially for bark desiccation. The drier comprises an inclined rotating drum (1) provided with perforations (2) and a cylinder (3) which is fitted therein and forms with the drum, in the lower part thereof, a clamp cheek. The bark mass fed into the drum, at the front end thereof, is subjected several times to compression while the drum is rotating, before being discharged through the rear end of the drum.      To enhance the dewatering, the cylinder (3), according to the invention, is also provided with perforations (4) at the front end thereof, while the rear end of the cylinder is unperforated. The perforation can comprise approximately a third of the length of the cylinder (3). Water guiding members (9, 10) are arranged at the rear end of the cylinder in order to guide the discharged water past the pressed bark mass which is discharging.
Patent CA-2054013-A1 (CA)
Title: Hybrid power supply for converting an alternating input signal into a direct output signal
Inventor: CLAVEL ROBERT
IPC: H02M3/335
Filed: 1991-10-23
Abstract: The present invention relates to a hybrid power supply fox converting an alternating input signal fed to its input into a direct output signal produced at its output.      The hybrid power supply comprises a rectifier for converting the alternating input signal into a mono-alternation signal; a capacitor for smoothing the mono-alternation signal into a direct signal; a switching regulator stage coupled to the capacitor for generating a pre-regulated direct signal having a constant amplitude; a 1/X frequency modulating circuit for generating two switching pulsed signals of constant pulse width at a variable frequency according to a 1/X function in relation to the direct signal originating from the capacitor; and a linear regulator stage coupled to the switching regulator stage for regulating the pre-regulated direct signal, and for generating the direct output signal. A 1/X pulse with modulating circuit can also be provided for generating two variable pulse width signals synchronized with the switching pulsed signals for allowing adjustment of the output. Low power dissipation of the power supply elements allow to use an airtight shielding to eliminates interferences.