baber/WOPTO huggingface dataset:
Patent CA-2024266-A1 (CA)
Inventor: MATSUDA AKIRA
IPC: C03C25/42
Filed: 1990-08-29
Abstract: Disclosed is an optical fiber cable free from a generation of a microbent during manufacturing, and in which an impregnation of hydrogen and/or water to a cladding is prevented, and having an electrical conduction, a tolerance to heat and a mechanical strength, and a process for making same.  The optical fiber cable includes a silica based glass optical fiber including a core and a cladding, a thin carbon coating formed on an outer surface of the optical fiber, and an electrically conductive coating formed on an outer surface of the carbon coating. The carbon coating functions as a layer for preventing the impregnation of hydrogen and/or water to the optical fiber, and the conductive coating functions as a heat tolerance member, a conductive member, and a mechanical support member.  The carbon coating is preferably formed as an amorphous carbon layer.  Preferably, the conductive coating can be materials having a good contact with the carbon coating, a high conductivity, a high heat tolerance, and a high strength, and can be formed as thin as possible.  The conductive coating can be formed by a plurality of different metal layers having different thickness.
Patent CA-2025097-A1 (CA)
Inventor: DEMIRORS MEHMET
IPC: C08F279/00
Filed: 1990-09-11
Abstract: There is disclosed a monovinylidene aromatic polymer resin having a specific rubber particle size distribution that provides surprisingly improved combinations of product properties, such as gloss, impact resistance and tensile strength. Such resin has a first group of smaller particles having a volume average particle diameter of from 0.2 to 0.6 micrometers and a second group of larger particles having a volume average particle diameter of from 2.5 to 5 micrometers.      In these resins it is further necessary in this specific rubber particle size distribution, based on 100 parts by weight rubber or rubber equivalent, that (a) particles constituting 20 to 60 parts by weight of the rubber have diameters of from 0.1 to 0.8 micrometers, (b) particles constituting 60 to 20 parts by weight of the rubber have diameters of from 2 to 6 micrometers, and (c) that there be a specific amount of intermediate size particles constituting from 10 to 30 parts by weight of the rubber and having diameters between 0.8 and 2 micrometers.      Also disclosed is a process for preparing such resins in a simplified production process wherein the rubber which is used has distinct high and low molecular weight components, the high molecular weight component having a weight average molecular weight at least two and one half times greater than the weight average molecular weight of the low molecular weight component.
Patent CA-2025262-A1 (CA)
Title: Pipe coupling
Inventor: HEISTER ALOISIUS H M
IPC: F16L21/04
Filed: 1990-09-13
Abstract: A pipe coupling, comprising a sleeve portion (1) having at least one end adapted for the insertion of a pipe (10), said end being provided with a substantially conically shaped supporting surface (3) for a sealing ring (4), and with a pressure ring (5), by means of which - in corporation with the supporting surface (3) - the sealing ring (4) may be compressed around a pipe (10) inserted into the sleeve portion (1), said sealing ring (4) being composed of a circumferentially compressible but in cross section rather undeformable annular core (8), which is more particularly bent of a helical body having substantially circular windings, and a sheath (9) of elastomeric material which forms the proper sealing ring (4) and completely encloses said annular core (8) both cross sectionally and circumferentially. According to the present invention the supporting surface (3) has a progressively decreasing diameter as seen in the pressing direction.
Patent CA-2025455-A1 (CA)
Title: Speech coding system with generation of linear predictive coding parameters and control codes from a digital speech signal
Inventor: COOLEGEM KAREL G
IPC: H03M/
Filed: 1990-09-14
Abstract: Analog speech signals are coded as digital signals before transmission over a transmission medium and then are decoded at their destination.  The coder is of the linear predictive type (LPC) and includes an LPC analyzer for adjusting an analysis filter, which receives the digital signal and generates a residual signal representative of error content.          The parameters by which the filter is adjusted by the analyzer and the residual signal together represent the digital signal.          The residual signal is split into segments and, per segment, several first pulse train signals are generated, each having a different starting time position within the segment.  The first pulse train signal which is most closely related to the residual signal is selected and compared to second pulse train signals stored in a codebook.  A location in the codebook belonging to a second pulse train signal that exhibits the greatest degree of correspondence to the selected first pulse train signal and the starting position of the selected first pulse train signal, together, represent the residual signal and are transmitted into and through the transmission medium in addition to the LPC parameters.  At the receiving location a synthesizer filter is controlled by a modified output of a duplicate codebook.
Patent CA-2025500-A1 (CA)
Title: Message routing check system
Inventor: PROCTOR RICHARD J
IPC: H04L12/56
Filed: 1990-09-17
Abstract: ABSTRACT          The  invention  concerns  telecommunication  apparatus  in which data messages are routed across a switch.   The messages are of the kind comprising a message portion and an incoming message identity portion and the apparatus comprising means (22, 23) for generating from the incoming message identity portion an outgoing message identity portion, means including a switch (21) utilising the incoming and outgoing message identity portions to route the message to an output port, and characterised in that the apparatus further comprises means (24, 25) for utilising the outgoing message identity portion to generate a further message identity portion and means  (26,  27)  for comparing the  incoming and  further message identity portions to detect faults.
Patent CA-2027346-A1 (CA)
Inventor: BUBULA THOMAS J
IPC: F16G3/16
Filed: 1990-10-15
Abstract: ABSTRACT OF DISCLOSURE        An apparatus is disclosed for cutting an end of a belt and for clinching belt fasteners to the cut belt end.  The apparatus includes a clamp for clamping the belt and a knife carriage driven across the belt to cut the belt end with a knife on the carriage.  A line of belt fasteners mounted in a comb are then pressed against the belt by a roller which is mounted on a roller carriage for travel across the line of belt fasteners.          Preferably, a single, detachable, manual driver or handle is used to drive the knife carriage and the roller carriage.
Patent CA-2029954-A1 (CA)
Inventor: CARDINAL MICHAEL J
IPC: E05G5/00
Filed: 1990-11-14
Abstract: ABSTRACT OF THE DISCLOSURE           An anti-jamming device for a security screen arrangement, in which a security screen is able to by rapidly fired from a rest position to an upper position at which passage of a person from one side of the screen to another is not possible, includes sensors for detection whether the screen is at the rest position or the upper position.  The device also includes a valve for lowering a screen when it does not reach the upper position, due to the screen having been jammed, and for reactivating the firing of the screen. The screen may be repeatedly fired until the obstruction is cleared.
Patent CA-2030198-A1 (CA)
Inventor: FUJIMOTO MINEYUKI
IPC: B25J3/04
Filed: 1990-11-16
Abstract: An electric power supply device on a mobile vehicular apparatus includes an AC generator, a rectifier connected to the AC generator, for rectifying an electric current generat-ed by the AC generator, a regulator connected to the rectifi-er, for maintaining the voltage with respect to the rectified electric current at a constant level, the regulator being connected to a power line for transmitting the electric current at the constant-level voltage to a DC electric actua-tor on a master control arm, and a battery connected to the power line.  The master control arm controls a slave manipu-lator arm for processing or handling a workpiece.  When the DC electric actuator is subjected to a large load and needs a large amount of electric power, the battery discharges and supplies the stored electric energy to the DC electric actua-tor.
Patent CA-2031290-A1 (CA)
Title: Base cloth for air bag
Inventor: BANBA SUSUMU
IPC: D03D1/04
Filed: 1990-11-30
Abstract: ABSTRACT OF THE DISCLOSURE The base cloth for air bag according to this invention is formed by woven cloth and constitutes an air bag, which is inflated by reaction gas from an inflator, operated in an emergency, and receives the occupant in vehicle.  Warp and weft are arranged in the same high density, and the strength in lateral direction is uniformly set.    Because warp and weft are arranged in the same high density and the strength in lateral direction is uniformaly set, the base cloth for air bag with such arrangement can fulfill its function completely by inflating instantaneously by high pressure reaction gas and receiving the occupant in reliable manner.  Above all, the air bag for the occupant on the seats other than the driver's seat can effec-tively fulfill the function because base cloth is used up to its selvege.
Patent CA-2032028-A1 (CA)
Title: Commercial satellite communications system
Inventor: LEVINBERG AMIRAM
IPC: H04B7/216
Filed: 1990-12-12
Abstract: A satellite communication system including a central satellite communication terminal and a multiplicity of remote satellite communication terminals which communicate via a satellite, apparatus associated with each of the multiplicity of remote satellite communication terminals for transmitting a burst of information within a time slot and having a characteristic which is independent of the time slot and receiving apparatus associated with the central satellite communication terminal for acquiring the characteristic during each time slot and receiving the burst according to the time slot and according to the characteristic, whereby multiple transmissions may occur concurrently within a given frequency bandwidth.
Patent CA-2032941-A1 (CA)
Inventor: NISHIDA MASASHI
IPC: G06K7/016
Filed: 1990-12-21
Abstract: The  reading  timing  determination  unit  determines  a timing at which identification marks such as print bar codes should be read.  The reading unit reads identification marks in accordance with the timing to provide identification mark data in a numerical form.  The discrimination unit compares identification   mark   data   with   data   value   of   an identification mark to be primarily printed to judge whether or not the identification mark is correctly printed.   The signal generation unit produces a notifying signal when it is  judged  that  the  identification mark  is  not  correctly printed.   In this way, this apparatus tests whether or not identification marks successively printed on a moving body in the form of sheet by the printing machine are correctly printed.
Patent CA-2034304-A1 (CA)
Inventor: GUERET JEAN-LOUIS H
IPC: B29K105/06
Filed: 1991-01-16
Abstract: Procédé de fabrication de  pièces  ayant  un aspect  de  pierres naturelles à partir d'une composition comprenant une matrice colorée ou non  en  résine thermoplastique  et,  pour  100  parties  en volume de cette matrice, 0,2 à 80 parties en volume  d'au  moins deux charges choisies parmi les fibres naturelles, les fibres  de  carbone  et  les  charges   minérales   ou végétales  ayant  une  granulométrie ou des dimensions différentes. En choisissant la couleur de  la  matrice et  le  nombre,  la proportion, la granulométrie et la couleur  des  différentes  charges,  on  peut   imiter l'aspect   général   et   les   teintes  d'une  pierre naturelle. Les pièces obtenues  après  mise  en  forme sont  utilisables  pour leur aspect esthétique, notamment dans   des   conditionnements    de    produits cosmétiques.
Patent CA-2035111-A1 (CA)
Inventor: CAILLE GERARD
IPC: H01Q13/10
Filed: 1991-01-28
Abstract: : Antenne en guides d'ondes à fentes, notamment pour radars spaciaux. L'invention concerne une antenne bipolarisée en guides d'ondes à fentes, notamment pour radars spaciaux, comprenant des guides d'ondes rectangulaires disposés parallèlement le long d'une paroi commune (10), deux guides voisins (11, 15) étant séparés entre eux par une même paroi (22, 23), la dernière paroi (12, 17) de chaque guide, située à l'opposé de la paroi commune (10), étant munie de fentes rayonnante (13, 16) ; cette antenne comprenant alternativement des guides d'onde d'un premier type (11) rayonnant une première polarisation et des guides d'onde d'un second type (15) rayonnant une seconde polarisation. Application notamment au domaine des radars ou télécommunications spatiales. FIGURE A PUBLIER : Fig. 1
Patent CA-2035810-A1 (CA)
Title: Enrichment of delta-bilipeptides solutions
Inventor: WU TAI-WUNG
IPC: C07K1/16
Filed: 1991-02-06
Abstract: ABSTRACT            A method for removing a substantial quantity of contaminating proteins or peptides, such as albumin from a delta-bilirubin or bilipeptide solution is described, thus providing an enriched solution of delta-bilipeptide. The method involves the use of a chromatographic gel of solid material to which either albumin, an albumin-resembling peptide or delta-bilipeptide has been covalently attached, addition of the delta-bilipeptide-containing solution thereto and elution of the delta-bilipeptide therefrom as an enriched solution.
Patent CA-2037770-A1 (CA)
Title: Object-oriented program generation system
Inventor: AOE SHIGERU
IPC: G06F9/06
Filed: 1991-03-07
Abstract: OBJECT-ORIENTED PROGRAM GENERATION SYSTEM     ABSTRACT OF THE DISCLOSURE    Objects are capsuled in an object-oriented computer system by combining instance object sensors and method object sensors previously prepared and stored in a secondary memory.  An element file contains records including a record identifier and at least one of an attribute identifying at least one method and a command identifying an instance.  Representations of the records in the element file are displayed on a display screen and a pair of records, one including a command and another including an attribute, are selected by a user to be combined into an object capsule.  The object capsule is stored in an object file for subsequent selection for execution.  When an object capsule is selected for execution, the attribute and command stored therein are used to identify at least one method and an instance of data to be swapped into primary memory from method and instance files in the secondary memory.  A processor then executes the method to operate on the data which have been swapped into the primary memory together.
Patent CA-2038630-A1 (CA)
IPC: B23B31/10
Filed: 1991-03-19
Abstract: THREADING MACHINE CHUCK Abstract of the Disclosure A rotatable  chuck  for  supporting  a  plastic  coated workpiece in a power driven threading machine is disclosed comprising workpiece engaging jaws mounted on the machine spindle  for  rotation therewith  and for pivotal movement relative thereto  radially inwardly  and outwardly of  the spindle axis.  Each jaw pivotally supports an insert holder provided with a pair of  inserts  for engaging the outer surface  of  the  workpiece.   Each  of  the  insert  holders pivotally  supports  a  centering  link  associated with  an adjacent jaw so as to be actuated in response to pivotal displacement of the jaws radially inwardly of the spindle axis to control the attitude of the insert holders  so that the inserts are directed radially inwardly of the spindle axis to assure a uniform gripping action by the two inserts of each holder upon engagement with the workpiece.   The centering links also displace the workpiece to a centered position coaxial with the spindle axis during inward dis-placement of the jaws.
Patent CA-2039091-A1 (CA)
Title: Removable hoist system
Inventor: BOISSONNEAULT GASTON
IPC: B66C13/00
Filed: 1991-03-26
Abstract: ABSTRACT OF THE DISCLOSURE           A removable hoist system for a doorway of a van which comprises,  when in position,  a post vertically mounted in the doorway and an arm having one end secured to the post.  The arm during operation extends horizontally from the post and a lift means is secured to the other end of the arm, for lifting or lower objects with respect to the van.  A lower plate is secured to the floor of the van where the post  is mounted and an aperture centrally positioned in the plate, and an upper plate is secured to a frame portion of the van in the upper part of the doorway, vertically  above  the  lower  plate with  an  aperture  centrally positioned in this upper plate.  Pins removably received in the aperture of the plates to hold the post in vertical osition during operation outwardly extend from the ends of the post.  The post is of a length so that when it is in position with its pins in the apertures there is sufficient clearance at the top to permit lifting of the post so that the lower pin is clear of the aperture for removal of the post.  The plates have sufficient load bearing strength when secured in position  in the van to withstand a predetermined weight of object when lifted or lowered by the lift means.
Patent CA-2039757-A1 (CA)
Inventor: PIORUNNECK HEINZ
IPC: H01R12/72
Filed: 1991-04-04
Abstract: An electrical connector of the card edge connector type having a housing,  two types  of  contacts and a  contact separator.  AT least two contacts are located in the same contact chamber in the housing with the separator keeping the contacts  separate.   In  an alternate embodiment,  the connector has two housings.   Each housing has a contact therein and one housing is mounted inside the other housing. The  connector  can  also  comprise  a  signal  transmitting section and a power transmitting section formed from modular units that are connected together at their ends.
Patent CA-2039792-A1 (CA)
Title: Soft-switching power converter for operation in discrete pulse modulation and pulse width modulation modes
Inventor: DE DONCKER RIK W A A
IPC: H02M7/21
Filed: 1991-04-04
Abstract: RD-19,799 A SOFT-SWITCHING POWER CONVERTER FOR OPERATION IN DISCRETE PULSE MODULATION AND PULSE WIDTH MODULATION MODES Abstract A single-phase, soft-switching, ac-to-dc power converter comprises a rectifier for receiving and rectifying an ac voltage and providing the rectified ac voltage to a boost dc-to-dc converter, which in turn is coupled to an active clamped resonant dc link (ACRDCL). Resonant oscillations of the resonant dc link circuit comprising an inductor and a capacitor are maintained via control of an active clamp switching device. Soft-switching in a discrete pulse modulation scheme is achieved by controlling the switching instants of a boost switching device to occur at zero voltage instants of the resonant dc link. Alternatively, is a pair of snubber capacitors are added to the boost converter, soft-switching may be achieved in a pulse width modulation mode, requiting in reduced subharmonics even at higher frequencies and with smaller filter components.
Patent CA-2040201-A1 (CA)
Title: Protective garment
Inventor: SACKS MICHAEL
IPC: F41H1/02
Filed: 1991-04-10
Abstract: ABSTRACT                  PROTECTIVE GARMENT     A garment having an outer cover (1) to receive an insert (2), the outer cover (1) having a window (7) formed therein, and either the insert (2) having a label (9) that is visible through the window when the insert is inserted, thereby to indicate that the insert has been inserted and preferably to identify its protective properties, and/or the outer cover (1) having a label (11) on its inner surface opposite the window (7) so as to be visible therethrough when the insert is not inserted, thereby to indicate that the insert has not been inserted.  Where the insert (2) may be inserted either way round in a correct or incorrect orientation, a label (9, 10) may be provided on either or both sides of the insert so as to indicate that the insert is correctly or incorrectly inserted in the cover when visible in the window (7).
Patent CA-2042966-A1 (CA)
Title: Low pressure indicating device for a pneumatic tire
Inventor: HUANG TIEN-TSAI
IPC: G01L17/00
Filed: 1991-05-21
Abstract: ABSTRACT OF THE DISCLOSURE   An  apparatus adapted to be directly  connected  to the valve stem of an automobile tire to indicate a  low pressure  condition, comprises a bulb, cell device  and compression spring switch assembly uniquely  responsive to  a low pressure condition in the tire for  operating the  switch assembly thereby connecting  an  electrical circuit  to  energize  the bulb.   The  apparatus  also includes  a diaphragm and  a special method of  varying the  over all volume of the diaphragm.   The  apparatus can  be  adjusted in advance to light the bulb  when  a selected pressure is detected a low pressure than  the predetermined pressure.
Patent CA-2043163-A1 (CA)
Title: Laminated sprocket and method of fabricating
Inventor: GUNDLACH JAMES O
IPC: B65G17/40
Filed: 1991-05-23
Abstract: A sprocket arrangement which provides increased contact surface area for driving conveyor belts is disclosed. The sprocket is particularly suitable for abrasive applications and/or use with modular plastic belts.      The sprocket is formed by stacking end aligning s multiplicity of thin substantially disk shaped sprocket lamina together and then joining the stacked and aligned lamina by simply bolting or welding. Each of the sprocket lamina includes a central aperture for fitting onto a drive shaft. Teeth or other driving surfaces are also formed around the perimeter of each of the lamina. The lamina may be stacked in contact with each other, or for some applications may use spaces to separate selected ones of the stacked lamina so as to cooperate with the structure of the belt being driven.
Patent CA-2044791-A1 (CA)
Inventor: AVITALL BOAZ
IPC: A61N1/30
Filed: 1991-06-17
Abstract: An  implantable  iontophoretic delivery  system for use  in applying medicinal materials rapidly to specific subcutaneous tissue  sites  of  interest  in  conjunction  with  an  implanted defibrillator is disclosed which uses a subcutaneously situated pouch for supplying medication in conjunction with a pair of defibrillator electrodes connected to a power source.  One of the electrodes is located proximately with respect to the tissue of interest and is designed to dispense the medication of interest utilizing controlled electrical pulses. The pouch is connected with the administering electrode of the electrode system via pumping mechanism.
Patent CA-2046689-A1 (CA)
IPC: G05D23/19
Filed: 1991-07-10
Abstract: Abstract of the Disclosure A liquid cooling apparatus includes a heat exchanger, a tank, leakage sensors, first and second level sensors, a timer counter, and a control section.          The heat exchanger cools a coolant to be supplied to a heat generating portion in an electronic device.  The tank temporarily stores the coolant cooled by the heat exchanger before the coolant is supplied to the electronic device.  The leakage sensors detect leakage of the coolant in a circulation path for repeatedly performing cooling and heat absorbing operations.  The first and second level sensors detect a decrease in amount of the coolant in the tank.  The timer counter counts a time interval between the instant at which a leakage detection output is output from one of the leakage sensors and the instant at which a coolant decrease detection output is output from one of the first and second level sensors.  The control section stops an operation of the electronic device when a value of the timer counter is a predetermined value or less.