baber/WOPTO huggingface dataset:
Patent CA-1306772-C (CA)
Title: Two-wire loop electric circuit arrangement
Inventor: WILLIAMS TIMOTHY D N
IPC: G08C19/02
Filed: 1988-04-05
Granted: 1992-08-25
Abstract: ABSTRACT        Two-Wire Loop Electric Circuit Arrangement The arrangement includes a loop (3) in which in use a signal current flows; a supply voltage generation circuit (1); a signal current conversion circuit (2); switch means (5) operative to connect either the supply voltage generation circuit or the signal current conversion circuit into the loop at any instant, the outputs of the supply voltage generation circut and the signal current conversion circuit being supplied to a common load (4) which controls operation of the switch means (5); and a pair of capacitors (6, 7) connected across the outputs of the supply voltage generation circuit and the signal current conversion circuit respectively.
Patent CA-1325515-C (CA)
Inventor: GREER DONNELL R
IPC: F26B23/02
Filed: 1988-04-15
Granted: 1993-12-28
Abstract: PULSE COMBUSTION DRYER                        ABSTRACT     This invention relates to a novel process and apparatus for processing, concentrating and/or dehydra-ting various types of material  into useable products. More  particularly,  the  invention  relates  to  a  novel process and apparatus which includes the utilization of a pulse-transducer which operates at controlled tempera-tures and sound pressures to reduce a wide variety of materials to useful products by rapidly separating and removing moisture which is present in such materials.
Patent CA-1322157-C (CA)
Title: Bifunctional proteins
Inventor: HABERMANN PAUL
IPC: C12N15/62
Filed: 1988-04-15
Granted: 1993-09-14
Abstract: Abstract of the Disclosure Bifunctional proteins, obtainable by genetic manipulation, composed of an interleukin-2 and a granulocyte macro-phage colony stimulating factor constituent have the biological activity of both components but are distin-guished by increased stability.  These proteins are thus medicaments which are suitable for the treatment of malignant neoplasms.
Patent CA-1300500-C (CA)
Title: Immunoassay method for detecting antibodies to antigens
Inventor: TODD WILLIAM J
IPC: G01N33/543
Filed: 1988-06-13
Granted: 1992-05-12
Abstract: IMMUMOASSAY METHOD FOR DETECTING ANTIBODIES TO ANTIGENS          Case Docket No. 4840P            APPLICANTS: William J. Todd Paul A. Barstad ABSTRACT OF THE DISCLOSURE    An immunoassay method for the detection in one-step of specific antibodies.  The method includes incubation of a solid phase support or matrix having a spot of the antigens component bound thereto with a a sample of the clinical fluid containing the anti-bodies component in the presence of a signal developing reagent, including a detector substance, which is pre-ferably a colloidal metal sol, and a ligand, such as protein A or other antibody binding ligand.  A diag-nostic field kit containing the test antigens and signal developing reagent is also described.
Patent CA-1307411-C (CA)
Inventor: GROSREY JEAN
IPC: A61C5/02
Filed: 1988-06-28
Granted: 1992-09-15
Abstract: ABSTRACT      Eye glasses are disclosed for improving the vision of people with macular degeneration, optic nerve damage or similar low vision problems.   The glasses comprise two lens assemblies,  each having a magnifying lens with two convex surfaces and a reducing lens with two concave surfaces.  The reducing lens incorporates prism rings which focus an image or light onto an undamaged portion of the macular.  A frame is employed for supporting each assembly at a predetermined distance from an eye of a user and for supporting the lenses assembly in a predetermined orientation with respect to each other with the lenses defining a fixed space therebetween.   Also disclosed are the lenses themselves and the method of using them.
Patent CA-1315843-C (CA)
Inventor: GRIFFIN ROWLAND A
IPC: H01M50/491
Filed: 1988-07-15
Granted: 1993-04-06
Abstract: ABSTRACT   This invention relates to a separator for non-aqueous electrochemical cells and in particular lithium/manganese dioxide cells. It has been discovered that a polypropylene microporous film having a thickness greater than one mil and voids  greater  than  50%  by  volume,  has  beneficial  properties  without  the concomitant  problems  generally  associated  with  separators  having  open structures.
Patent CA-1313386-C (CA)
Title: Adjustable reusable fitting assembly for reinforced hose
Inventor: FOUTS ROBERT E
IPC: F16L37/14
Filed: 1988-07-19
Granted: 1993-02-02
Abstract: ADJUSTABLE REUSABLE FITTING ASSEMBLY          FOR REINFORCED HOSE      Abstract of the Disclosure An adjustable and detachable fitting assembly for reinforced hose having an inner fluid sealing tube and an  outer  reinforcement.    The  assembly has  a  nipple insertible into the tube and a sleeve surrounding the nipple but spaced therefrom so that a cutting edge on the sleeve separates the tube structure allowing one separated portion of the tube to fill the space between the sleeve and nipple with the other separated portion of  the tube  and  the  reinforcement  filling  a  space between the outer surface of the sleeve and a socket threaded thereto.   The sleeve rotates about the nipple and is longitudinally adjustable with respect thereto while  maintaining  connection  of  the  sleeve  to  the nipple.  This allows for compensation for misalignment.
Patent CA-1308282-C (CA)
Title: Hologon and method of manufacturing a hologon
Inventor: RUMFOLA ROSS E
IPC: G02B26/10
Filed: 1988-08-02
Granted: 1992-10-06
Abstract: HOLOGON AND METHOD OF MANUFACTURING A HOLOGON           ABSTRACT OF THE DISCLOSURE A hologon and its method of manufacture are described.  Adjacent facets of the hologon are overlapped so that the diffraction effects created by boundaries of the mask which defines the extent of the interference pattern, which is a precursor of the diffraction grating, are overlapped, thereby increasing the duty cycle.
Patent CA-1338566-C (CA)
Inventor: SAVINO THOMAS G
IPC: C09D175/04
Filed: 1988-08-08
Granted: 1996-08-27
Abstract: This invention, therefore, relates to the field of polyurethane coatings for use in automobile basecoat/clearcoat systems.  In particular, this invention relates to water-dispersible polyurethane resins having polyether sidechains which may be utilized in basecoat compositions as principal resins or grind resins.  These polyurethane resins may be laterally stabilized or terminally stabilized.  The terminally stabilized resins of this invention are preferably employed as principal resins in basecoat compositions.
Patent CA-1336840-C (CA)
Title: Automated interactive mass communications system
Inventor: BEDROSSIAN BEDROS A
IPC: H04M3/46
Filed: 1988-08-15
Granted: 1995-08-29
Abstract: A real time automated interactive mass communications system provides communications between a central communications processor and groups of subscribers.  Typically, each group is associated with a central office.  A set of local communication processors are provided, each being in two-way communication with the central processor and each being linked to one of the central offices and being preferably on site.  Each local communication processor includes a processor unit, an audio controller and a set of multi-line controllers.  The audio controller takes audio messages received from the central processor and generates a train or delayed set of the messages which are supplied to each of the multi-line controllers.  Each multi-line controller services a set of lines connected to the central office switch, receives telephone number data from the central communication processor, and calls the list of telephone numbers to which it has been assigned.  Upon detecting a subscriber response, the multi-line controller selects the next occurring message in the message train for transmission to the subscriber.  Subscriber responses in the form of key depressions are detected in the multi-line controllers and are used to supply data relating to the subscriber response to the central communications processor.
Patent CA-1301371-C (CA)
Inventor: AUNE JAN E
IPC: B27B1/00
Filed: 1988-08-23
Granted: 1992-05-19
Abstract: A system for a real time analysis of a body such as a log to determine the locations of defects that may generate a sawing decision for the log and/or a rotation decision for rotating the log for presentation to the headrig to permit the optimization of a sawing solution for the log based on the determined locations of the defects. The system may also be used to provide a bucking solution to select the length of the log for which the sawing solution is determined.
Patent CA-1294073-C (CA)
Title: Tdma radio system employing bpsk synchronization for qpsk signals subject to random phase variation and multipath fading
Inventor: BORTH DAVID E
IPC: H04B7/185
Filed: 1988-08-25
Granted: 1992-01-07
Abstract: TDMA RADIO SYSTEM EMPLYING BPSK SYNCHRONIZATION    FOR QPSK SIGNALS SUBJECT TO RANDOM PHASE     VARIATION AND MULTIPATH FADING            Abstract of the Invention A time division  multiple access (TDMA) radio system conveying a quadrature phase shift keying (QPSK) modulated data signal is disclosed. In order to overcome multipath distortion and phase variation introduced by the radio channel, a synchronizing portion of a TDMA timeslot is transmitted in only one veotor of the QPSK modulation. The system utilizes the one vector synchronizing portion to develop a channel profile estimate which is applies to the received message portion of the QPSK data signal to compensate for the multipath distortion and phase variation during one TDMA timeslot.
Patent CA-1329789-C (CA)
Title: Procede de regulation de l'acidite du bain d'electrolyse par recyclage des produits emis par les cuves hall-heroult
Inventor: BASQUIN JEAN-LUC
IPC: C25C3/22
Filed: 1988-09-12
Granted: 1994-05-24
Abstract: L'invention concerne un procédé de régulation de l'acidité du bain cryolithique de cuves d'électrolyse Hall-Héroult pour la production d'aluminium, par recyclage des effluents fluorés se trouvant émis par ces cuves et captés, par voie sèche, sur de l'alumine. Ce procédé comporte les étapes suivantes: on fixe une valeur de consigne du rapport pondéral fluor/alumine pour l'alumine sortant du dispositif de captage des effluents fluorés; on mesure en continu la quantité de fluor et d'alumine entrant dans le dispositif de captage; on règle le débit d'alumine de façon à maintenir le rapport F/Al2O3 à sa valeur de consigne, généralement fixée entre 0,5 et 3%; on envoie l'alumine fluorée dans un moyen de stockage d'une capacité prédéterminée, muni d'un moyen de mesure de niveau; on alimente les cuves d'électrolyse à partir de l'alumine fluorée prélevée dans le moyen de stockage; et, on ajuste l'acidité de chaque cuve a partir d'addition de fluorure d'aluminium et/ou de variation de la puissance dissipée dans la cuve. Ce procédé est intéressant dans la mesure où il stabilise la marche des cuves et rend celles d'une même série homogènes, ceci conduisant à une légère augmentation du rendement Faraday.
Patent CA-1308153-C (CA)
Inventor: PAJARI GEORGE SR
IPC: E21B4/00
Filed: 1988-10-19
Granted: 1992-09-29
Abstract: ABSTRACT The invention comprises an anti-blockage bearing for use in rotary core drilling of rock or other hard earth.    Situate between the upper end of a freely suspended core barrel assembly and the core barrel coupling, the invention consists of spherical bearings retained within an upper and a lower annular housing, one or both of which are provided with a thrust race comprising a plurality of indentations and intervening ridges.   During normal drilling, the core barrel is freely suspended within the outer tube of the lower end of the drill string.   In the event of blockage,  the core barrel will automatically be pushed upwards causing the thrust race of the lower housing member to bias the bearings against the thrust race of the upper housing member.  As the bearings encounter the ridges and indentations of the thrust races, a jarring vibration action is imparted to the core barrel, dislodging the blockage.          The vibrational frequency of the anti-blockage bearing can be modified by varying the number of spherical bearings or the number of ridges in the thrust races.
Patent CA-1311963-C (CA)
Inventor: MEDIONI GERARD G R
Filed: 1988-11-22
Granted: 1992-12-29
Abstract: A B S T R A C T          An algorithmic based method and apparatus for registering halftone color separations using edge based registration techniques.  Digital pictures are taken at two locations (140, 142) on each film, and, following optimal thresholding of the data, the edges are located by application of a Laplacian of a Gaussian edge detection operator.  Sampling is used to reduce the computational requirements, and full resolution is restored by interpolation.  The edge locations are corrected for operator edge bias, and the corrected edge points are linked into segments (166, 168, 170, and 172) which are registered by the parameter space method.  The initial offset is corrected for size differences by application of least squares correction techniques.
Patent CA-1312568-C (CA)
Title: Method for the aeration, without exit gases, of fermentation media
Inventor: BUCHHOLZ RAINER
IPC: C12M1/00
Filed: 1988-11-22
Granted: 1993-01-12
Abstract: Abstract of the disclosure:            A method for the aeration, without exit gases, of fermen-tation media Aeration, without exit gases, of fermentation media is pos-sible by oxygen being transported, with the aid of fluid carrier media, into the fermentation medium and entering the fermentation medium via the liquid/liquid phase bound-ary, with, subsequently, the fluid carrier medium which has been depleted in oxygen and enriched in carbon dioxide being again enriched with oxygen, without emission of exit gas streams, and with the carbon dioxide which is displaced in this way being desorbed and removed.
Patent CA-1321125-C (CA)
Title: Process for producing a cold rolled steel sheet having a good ageing resistance by continuous annealing
Inventor: YAMADA TERUAKI
IPC: C21D9/48
Filed: 1989-02-21
Granted: 1993-08-10
Abstract: Abstract of the Disclosure A cold rolled steel sheet having a good ageing resistance is produced by subjecting a cold rolled steel sheet to continuous annealing including recrystal-lization, grain growth, quenching, supercooling, reheat-ing and overageing according to inclinatory cooling, where after the recrystallization and the grain growth, the steel sheet is quenched at a cooling rate of 50 to 250°C/sec from 720 - 600°C to 200 - 310°C; after retain-ing the steel sheet at the same temperature for 0 to 15 seconds, the steel sheet is reheated by at least 40°C up to 320 - 400°C; then the steel sheet is cooled from or retained at the same temperature at a rate of not more than 0.7°C/sec including the time for retaining the steel sheet at the same temperature; and then the steel sheet is cooled at an average cooling rate of not more than 10°C/sec in a temperature zone of higher than 350°C, at a specific average cooling rate in a temperature zone of 350°C to 300°C and at a specific average cooling rate down to 285 - 220°C in a temperature zone of lower than 300°C.
Patent CA-1291223-C (CA)
Title: Voltage controlled oscillator
Inventor: RUIJS JAN B F W
IPC: H03K3/03
Filed: 1989-02-24
Granted: 1991-10-22
Abstract: ABSTRACT: "Voltage controlled oscillator.           A voltage controlled oscillator (VCO) comprises the series arrangement of two signal inverters (I1, I2) whose outputs (B, A) are coupled to the input of the first signal inverter (I1) through a feedback loop (FBL) having a resistor (R1) and a capacitor (C1) connected to the outputs (B, A) of the inverters (I1, I2). The VCO further includes a simple control circuit (SC) with a second resistor (R2) which is connected to the junction (C) of the first resistor (R1) and the capacitor (C1), and to a series arrangement of two diodes (D1, D2) arranged in the same direction, whose interconnected electrodes are connected to the second resistor (R2) and coupled to the input of the first inverter (I1). The other electrodes of the diodes (D1, D2) form inputs for two control voltages (+U, -U) varying symmetrically with respect to the mean value of the capacitor voltage, with which the frequency of the VCO can be varied over a continuous range. The VCO can be used over a wide range of frequency values and does not require any particular measures for obtaining a practically symmetrical signal shape of the voltage at the output (A) of the second inverter (I2).            [Fig. 3]
Patent CA-1313025-C (CA)
Title: Low temperature desulphurization process using absorbent of selected water content
Inventor: DENNY PATRICK J
IPC: C07C7/12
Filed: 1989-03-06
Granted: 1993-01-26
Abstract: Abstract Desulphurisation Low temperature desulphurisation process using a bed of zinc oxide-containing absorbent in which the water content within the bed is temporarily increased, thereby increasing the sulphur absorption capacity of the absorbent.
Patent CA-1310828-C (CA)
Title: Marking device for electrical wires and the like
Inventor: SKARIN LARS
IPC: H01B7/36
Filed: 1989-04-28
Granted: 1992-12-01
Abstract: Abstract The invention relates to a marking device shaped like a ring and designed to be coaxially mounted on a wire or the like.  The invention solves the problem of extending the diameter interval within which the device can be used.  The solution suggested by the invention is, at both sides of the marking symbols on the outer wall of the ring, to provide a number of openings permitting use of the ring also on a thinner wire which when mounted extends in a radial plane of the ring.
Patent CA-1323993-C (CA)
Inventor: POELL MARTIN
IPC: A44C17/04
Filed: 1989-06-07
Granted: 1993-11-09
Abstract: Abstract The invention relates to a gem compound comprising a plurality of gems bearing a melt adhesive layer, wherein the gems bear on their setting side a first melt adhesive layer, therebelow a filling layer which fills the spaces between the individual gems, and therebelow a second melt adhesive layer which is substantially flat and welded to the first melt adhesive layer in the area of the tips of the gems.
Patent CA-1335815-C (CA)
Title: Piperidine or azepine peroxy compounds and derivatives useful as bleaching agents
Inventor: VENTURELLO CARLO
IPC: C07D223/06
Filed: 1989-06-13
Granted: 1995-06-06
Abstract: Heterocyclic (poly)peroxycarboxylic acids having an N-amidic heteroatom are herein disclosed, which have the formula:                  R - (CH2)m - R'      (I) wherein: R and R', which may be equal to or different from each other, represent hydrogen atoms or a group:       with the proviso that at least one between R and R' be different from H, and wherein the other symbols have the following meanings:       R" represents a hydrogen atom or any other substituent non-reactive in the presence of the active oxygen of the peroxycarboxylic group and/or in the preparation conditions; m  represents a number comprised between 1 and 12; n  represents a number selected from 0,1 and 2; p  represents a number comprised between 1 and 3; their preparation process, and to their use as bleach-ing agents.
Patent CA-1337534-C (CA)
Title: Adhesive organopolysiloxane composition which can be cured to form an elastomer
Inventor: WOLFER DIETRICH
IPC: C09J183/07
Filed: 1989-07-06
Granted: 1995-11-07
Abstract: Organopolysiloxane compositions which can be cured to form elastomers and contain:    (a)  An organopolysiloxane containing Si-bonded vinyl groups; (b)  an organopolysiloxane containing Si-bonded hydrogen; (c) a platinum catalyst which promotes the addi-tion of Si-bonded hydrogen to vinyl groups; (d)  an inhibitor which delays the addition reaction of Si-bonded hydrogen with vinyl groups at room temperature, with the proviso that inhibitors containing a hydroperoxy radical are excluded; and (e)  an organic peroxide, with the proviso that acyl peroxides are excluded; are used as adhesives.  These adhesives are used to bond similar or dissim-ilar organopolysiloxane elastomers to each other and to bond organopolysiloxane elastomers to optionally primed sub-strates.
Patent CA-1315665-C (CA)
Inventor: WOO LECON
IPC: B29C65/22
Filed: 1989-09-28
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE      An apparatus [10] for sealing and severing a web of film [16]  is provided.   The apparatus includes a sealing bar [12, 112, 212, 312, 312, or 512] having a body portion [20, 120, 220, 320, 420, or 520] including first and second sidewalls [24, 26; 124, 126; 224, 226; 324, 326; 424, 426; or 524, 526] and a top portion [28, 128, 228, 328, 428, or 528] for melting and severing a portion of a web of film.  A backup member [18, 118, 218, 318, 418, or 518] is provided located on an opposite side of the film from the sealing bar for urging the film against a portion of the sealing bar.  The apparatus also includes a holder [14, 114, 214, 314, 414, or 514] for holding the sealing bar, the holder includes a first side [40, 140, 240, 340, 440, or 540] and a second side [42, 142, 242, 342, 442, or 542] that define a center region [44, 144, 244, 344, 444, or 544] for receiving at least a portion of the body of the sealing bar, and first and second sides having shoulders [46, 48; 146, 148; 246, 248; 346, 348; 446, 448; or 546, 548].  The shoulders and top portion of the sealing bar are so constructed and arranged that they deflect a bead generated at a molten area [16'] of the film [16] when the film is sealed and severed  and  substantially  limit  the  creation  of  a resultant bead in a final cooled product.
Patent CA-1281087-C (CA)
Inventor: LEVINE STEPHEN N
IPC: H03L7/099
Filed: 1990-01-12
Granted: 1991-03-05
Abstract: MULTIPLE FREQUENCY DIGITAL PLL            Abstract An improved multiple frequency digital phase-locked loop circuit is described.  The improved digital phase-locked loops utilizes a single circuit to effect both phase and frequency adjustments.  The multiple frequency digital phase-locked loop effects phase adjustments by selectively combining or subtracting a reference clock signal with a derived programmable clock signal thereby generating a composite digital phase-locked loop clock signal.  The multiple frequency provides frequency adjustments by selectively adding or subtracting pulses from the composite clock signal at a rate determined by a programmably controllable clock signal. The improved multifrequency digital phase-locked loop is suitable for use as a tone detector with the addition of a lock detector wherein the phase-locked loop can be programmed for a plurality of known operating frequencies.
Patent CA-1295518-C (CA)
Inventor: DUFFY RICHARD J
IPC: F16B39/34
Filed: 1990-10-05
Granted: 1992-02-11
Abstract: APPARATUS AND PROCESS FOR MAKING COATED FASTENERS     ABSTRACT OF THE DISCLOSURE     Disclosed is an apparatus for applying patches of resin to internally threaded articles having openings at both ends comprising a support for positioning the internally threaded articles for processing, means for heating the articles to a temperature above ambient temperature and means for providing a stream of fine particles of the resin entrained in a gaseous jet.  A spray guide applicator is provided for directing the stream of resin particles through the opening at one end of one of the articles against an area of the threaded portion of the one article to cause the resin particles to be retained by the articles and to adhere to the threaded portion area.  The applicator comprises an elongated conduit portion and a nozzle portion, the conduit portion having a passageway therein, and the nozzle portion having top, bottom and side walls, the bottom wall having an opening communicating with the passageway.  A slot opening is disposed in the sidewall in a plane forming substantially a right angle to the passageway, the top wall forming a deflector surface for the stream of resin particles, whereby the stream of resin particles is directed in a line of discharge against the threaded portion of the article in a controlled manner.  The invention also comprehends the process associated with applying such patches.