baber/WOPTO huggingface dataset:
Patent CA-1275319-C (CA)
Title: Electronic reverse power relay
Inventor: CHOW KUNG C
IPC: H02H7/06
Filed: 1986-11-06
Granted: 1990-10-16
Abstract: ABSTRACT OF THE DISCLOSURE An electronic protective relay which offers  a very sensitive detection of a reverse power condition of a three-phase alternating current generator for the protec-tion against generator motoring is disclosed.  A current signal is generated from a current transformer coupled to one phase of the ac generator;  and a voltage signal is generated from a potential transformer coupled across the one phase and another phase of the generator.  A current input circuit is  operative  to maintain the phase  angle between the voltage and current signals over a wide varia-tion of input current,  e.g. from one milliamp to 75 am-peres.  In addition, a phase-rectification type multiplier affords  a  relatively  simple,  but  effective  method  for detecting the power flow direction of the generator.  Once the power flow is determined to be in the reverse direction and above a preselected magnitude, a signal indicative of a potential generator motoring condition is generated.  Also included in the relay is an undervoltage detection circuit which operates to disable the generator motoring indication if  the  generator's voltage has not  yet  reached or has dropped below an adjustable undervoltage  setting.  Still further,  the  relay circuit  includes  timers  in both the undervoltage and reverse power detection areas to insure that their respective conditions persist for a preset time duration in each case before an action is initiated.
Patent CA-1290666-C (CA)
Inventor: WU ANNIE L
IPC: G01N33/52
Filed: 1986-11-12
Granted: 1991-10-15
Abstract: USE OF ORGANIC BUFFERS TO REDUCE DEHYDROASCORBIC     ACID INTERFERENCE IN ANALYTICAL METHODS        Abstract of the Disclosure The interference of dehydroascorbic acid, an oxidation product of ascorbic acid, in analytical methods is reduced with the use of certain nitrogen-containing organic buffers.  Dehydroascorbic acid tends to cause premature reduction of reducible com-pounds which are used to provide detectable species in the presence of an analyte.  These organic buf-fers, as opposed to inorganic buffers, prevent pre-mature reduction of the reducible compounds.  An ana-lytical method can be carried out in solution or in a dry analytical element.
Patent CA-1289779-C (CA)
Title: Alloy having improved fatigue crack growth resistance
Inventor: BRETZ PHILIP E
IPC: H02B13/075
Filed: 1986-11-17
Granted: 1991-10-01
Abstract: Abstract of the Disclosure Disclosed is a metal alloy product having increased resistance to fatigue crack growth and having coarse grains distributed in a fine grain structure, the coarse grains having a different alloy composition from the fine grain structure.
Patent CA-1307582-C (CA)
Title: Video disc reproducing apparatus
Inventor: TSUJIMURA KATSUHITO
IPC: G11B7/085
Filed: 1986-12-12
Granted: 1992-09-15
Abstract: ABSTRACT OF THE DISCLOSURE          An apparatus for reproducing a video disc, on which synchronizing signals recorded in adjacent tracks are positionally non-coincident with each other, while executing track jumps in a varied-speed reproduction mode, wherein a reproduced video signal in a stable state after a track jump is written in a field memory and then is read out therefrom in synchronism with a reference synchronizing signal, thereby ensuring satis-factory picture reproduction with reduction of any picture disorder that may otherwise be caused by the track jump.
Patent CA-1280727-C (CA)
Title: Fitting for a thermostatic valve
Inventor: SPIES VOLKER
IPC: G05D23/13
Filed: 1986-12-31
Granted: 1991-02-26
Abstract: Abstract A fitting for a thermostatic valve comprises a housing (1)  and a valve insert (11).  The latter consists of a shank carrier (12) and a seating carrier (13).   The separating gap  between  them extends within the inner portion of the valve insert (11).  The outer portion carrying the coupling device (36) is formed by the shank carrier (12).   The shank carrier (12)  is secured to the building-in nipple  (4).    The  seating  carrier  (13)  comprises retaining means (24, 29) within the building-in nipple (4)  for securing its axial building-in length.  The axial length of the cylindrical bore (33)  is considerably longer than that of  the sealing head  (34)  on  the  tube  extension  (32)  of the seating carrier (13).  In this way, one achieves a very universal applica-tion of the individual components of the fitting.     Fig. 1.
Patent CA-1280912-C (CA)
Title: On line replaceable sensor assembly for a vortex shedding flowmeter
Inventor: KNUDSEN JAMES K
IPC: G01F1/66
Filed: 1987-02-02
Granted: 1991-03-05
Abstract: ON-LINE REPLACEABLE SENSOR ASSEMBLY FOR A VORTEX SHEDDING FLOWMETER            ABSTRACT OF THE DISCLOSURE     A sensor arrangement for a vortex shedding flowmeter having a flowmeter housing which is exposed to a flowing fluid in a fluid space on one side of the housing, comprises a sensor housing which is connected to the flowmeter housing and which defines an internal sensor space.  A sensor beam is connected to the housing and has a first portion exten-ding into the sensor space with a second portion extending through the flowmeter housing into the fluid space.  A dia-phragm resiliently carries the beam for movement in response to the passage of vortices in the fluid space.  A mounting bracket is detachably connected to the sensor housing and carries a sensor element. The sensor element is operatively connected to the first portion of the sensor beam and can be easily engaged and disengaged thereto when the mounting bracket is to be removed.  In this way if the sensor ele-ment fails, it can be replaced without stopping the flow of fluid or disturbing the sensor beam.
Patent CA-1301570-C (CA)
Title: Catheter introducer
Inventor: OKADA YOSUKE
IPC: A61M25/01
Filed: 1987-02-04
Granted: 1992-05-26
Abstract: ABSTRACT       Catheter Introducer A typical catheter introducer for use with a guide wire comprises a tubular body and a generally conical tip which acts as a dilator.  The introducer (30) of the invention has a flexible snout (32) adapted to follow the path of a guide wire (18).  The snout (32) minimises the chance of buckling the guide wire as the introducer is inserted.
Patent CA-1281432-C (CA)
Title: Multipoint link data-transmission control system
Inventor: SHIRAKAWA MASAKAZU
IPC: G06F15/177
Filed: 1987-03-27
Granted: 1991-03-12
Abstract: Abstract of the Disclosure According to a multipoint link data-transmission control system, a master transmission device delivers message data via a bidirectional transmission path to a plurality of slave transmission devices, the data containing a control field for designating control data for setting or resetting a flag.  The transmitting of data from the slave transmission device to the master transmission device is allowed when the flag is set, and is inhibited when the flag is reset.  Where the transmitting of data from a faulty slave transmission device is to be inhibited, the master transmission device transmits the data to the faulty slave trans-mission device, by designating flag reset data to the control field of the message data.  As a result, a transmission-enable signal, which is delivered in syn-chronization with a transmission-timing clock signal, is reset, thereby stopping the transmitting of data from the slave transmission device to the master transmission device.
Patent CA-1300440-C (CA)
Title: Method of surface treatment and apparatus used therefor
Inventor: ARAI TOHRU
IPC: C23C16/448
Filed: 1987-07-03
Granted: 1992-05-12
Abstract: ABSTRACT     A method of forming a surface layer of carbide, nitride, carbonitride, or solid-solution on the surface of a material to be treated, which comprises disposing in a fluidized bed furnace a treating agent comprising a powder of a refractory material, and a powder of a metal for forming a carbide, nitride, carbonitride or solid-solution or a powder of an alloy thereof, introducing a fluidizing gas into the fluidized bed furnace to fluidize the treating agent and form a fluidized layer, disposing the material to be treated in the fluidized layer, and introducing a predetermined amount of halide into the fluidized layer, and an apparatus for forming the surface layer on the material to be treated, comprising a furnace body for forming the surface layer in the fluidized layer of the treating agent, a heating furnace for heating the fluidized layer, a halide supply pipe in communication with the outside of the furnace body, and a halide gas jetting pipe disposed within the furnace body, which is connected to the halide supply pipe and has a plurality of apertures opened into the fluidized layer.
Patent CA-1327168-C (CA)
Inventor: MOAV NEOMI
IPC: G01N33/569
Filed: 1987-09-08
Granted: 1994-02-22
Abstract: ABSTRACT     Novel monoclonal  antibodies  specific  to Trichomonas vaginalis, having complement   -   fixing  ability  and  lysing  Trichomonas vaginalis in  the presence of complement are disclosed and may be used in  therapy  and  diagnosis  of  trichomoniasis.  Hybridomas producing and  compositions  comprising these antibodies are also disclosed.
Patent CA-1297922-C (CA)
Inventor: PASSERELL DAVID P
IPC: F16L33/22
Filed: 1987-10-27
Granted: 1992-03-24
Abstract: COUPLING APPARATUS             Abstract of the Disclosure A stab-type coupling apparatus adapted to receive an associated pipe end in a body thereof and prevent its withdrawal therefrom.  The coupling apparatus includes an elongated hollow stiffener received in a coupling body recess and providing internal support for the associated pipe end.  A retaining ring retained between the body and stiffener has a radially inward extending toothed portion that grippingly engages the external surface of the associated pipe end.  A seal means is disposed on an axially inner side of a collet retainer to seal along a peripheral portion of the pipe end.  The collet retainer includes a toothed internal surface that selectively engages the pipe end during attempted withdrawal from the coupling body.  A generally frustoconical member cams the collet retainer into gripping engagement with the pipe end.  A gasket is radially and axially compressed at an outer end of the recess and disposed on an opposite side of the collet retainer from the seal means.  A nipple is adapted to compress the gasket and prevent ingress of dirt and moisture to the coupling body.  The retaining ring toothed surface has an inner diametrical dimension slightly less than a second diametrical dimension defined by the toothed surface of the collet retainer.  Attempted withdrawal of the pipe end is thereby initially resisted by the retaining ring and further withdrawal forces are opposed by the collet retainer.
Patent CA-1289890-C (CA)
Inventor: FRASER MICHAEL J
IPC: B23P6/04
Filed: 1987-12-18
Granted: 1991-10-01
Abstract: ABSTRACT        "Parts for and methods of repairing Turbine Blades"   A part and method for repairing a high velocity fluid flow machine part, for example a turbine blade (10) comprises an insert (20) which may be made from a piece of material the same as the turbine blade ( 10) and prior to attachment to the blade has an edge region (21) hardened by any suitable means, for example induction hardening, the insert (20) then being secured to the blade (10) by welding or brazing, the weld or braze material being of a relatively soft nature to provide a cushion between the insert and the blade so as to minimise the occurrence of stress corrosion cracking.
Patent CA-1312804-C (CA)
Title: Method and apparatus for treating waste material
Inventor: LANDRY KENNETH C
IPC: B01D17/00
Filed: 1988-01-19
Granted: 1993-01-19
Abstract: METHOD AND APPARATUS FOR TREATING WASTE MATERIAL            ABSTRACT          Preheated diluent and steam are introduced into a container carrying waste material typically comprised of a sludge mixture of liquid and solid material including hydrocarbons.  The material is thereby heated to a pumpable state and piped to a heating pot where additional steam and diluent are added to maintain the flow characteristics of the material which is then delivered to a remote blending manifold.  In the manifold, additional steam and diluent is added to optimize separability of the desired reclaimed material from the waste, whereupon the material is then delivered to a separator, preferably of the vibration screen type.  The separator delivers waste material in the mixture to a solids box for disposal whereas valuable reclaimed hydrocarbons are delivered to a recovery tank for re-use, thereby avoiding disposal thereof and reducing the volume of waste material to be disposed of.
Patent CA-1309761-C (CA)
Title: Control system for home training devices
Inventor: HAMM WILFRIED
IPC: G06F19/00
Filed: 1988-05-06
Granted: 1992-11-03
Abstract: CONTROL SYSTEM FOR HOME TRAINING DEVICES               ABSTRACT OF THE DISCLOSURE        Subject of the invention is a control system for home training devices which consists of a programmable microcomputer.  The microcomputer will be fed with pro-grams and data from magnetic cards or other mass stores thus allowing exactly set strain intervals.  Used in re-habilitation therapy the home training device with the mentioned control system can become an apparatus for medical treatment without need of permanent supervision by the physician.  This is made possible by feeding pro-grams and data by means of magnetic cards or the like which does not allow a subsequent intervention by the patient.
Patent CA-1329640-C (CA)
Inventor: YAMAUCHI MIYOSHI
IPC: H03D7/16
Filed: 1988-05-26
Granted: 1994-05-17
Abstract: ABSTRACT OF THE DISCLOSURE           An outdoor unit low noise converter for satellite broadcast reception use and 2-band low noise converter (LNB:          Low Noise Block Downconverter),  so-called  2-band LNB for receiving two frequency bands.  The low noise converter is capable of receiving a plurality of bands by one converter.          The 2-band LNB has terminals as many as those of the LNB of one band through placing of power supply voltages upon the IF output.
Patent CA-1315105-C (CA)
Title: Fishing device
Inventor: SCHLAEGEL GENE A
IPC: A01K85/16
Filed: 1988-06-28
Granted: 1993-03-30
Abstract: Abstract of the Disclosure A fishing device useful for casting and trolling includes an elongated buoyant plug type artificial fishing lure mounted to a bait harness adapted to hold a fish bait, filet or strip of fish bait.  The harness is mounted longitudinally to the under-side of the lure and includes opposed jaw members pivotally connected at one end under spring tension and provided with opposed spaced prongs at the opposite end.  The jaws are normally closed with the prongs in overlapping position.  An elongated flexible bar disposed in longitudinal alignment to the under-side of the lure has a free end extending intermediate the closed prongs and is pivotally secured at the opposite end intermediate the jaws.  When the jaws are opened, the rod is swingable on its pivot point to be perpendicular to the lure to facilitate its being impaled or skewered lengthwise through the fish bait from the head to protrude from the tail thereof.  The rod with skewered fish bait is returned to longitudinal alignment with the lure and the jaws are returned to closed position where the prongs pene-trate the fish bait to hold it securely against the underside of the lure.  The closed prongs embrace the bar so that the bar and fish bait are maintained against lateral displacement relative to longitudinal alignment with the lure.  The lure keeps the fish bait positioned so it has a side to side action simulating a natural action of the bait and, preferably, the lure is provided with a well known lip on its leading end for directing it under water.  The bar is bendable to bend the tail of the fish bait downwardly to cause the lure to dig deeper with more side to side action.
Patent CA-1328525-C (CA)
Inventor: KURAUCHI MAKOTO
IPC: H01L21/66
Filed: 1988-07-25
Granted: 1994-04-12
Abstract: ABSTRACT OF THE DISCLOSURE     A coating material for a tendon for prestressed concrete comprising 100 parts of epoxy resin, a latent curing agent, and 0.03 to 0.5 parts by weight of a curing accelerator, the latent curing agent being selected from the group consisting of dihydrazide, diphenyldiaminosulphone, dicyandiamide, 2-methylimidazole and derivatives thereof, and BF3.amine complex, the curing accelerator being 2,4,6-tris(N,N-dimethylaminomethyl)phenol, the coating material being curable in at least more than three days at ambient temperature.  The coating material provides rust and corrosion protection for the tendons, and allows prestressed concrete to be manufactured more easily and cheaply than conventional methods.
Patent CA-1320125-C (CA)
Title: Procede pour manoeuvrer au moins un dispositif a l'interieur d'un tubage et ensemble permettant la mise en oeuvre du procede
Inventor: LESSI JACQUES
IPC: E21B23/08
Filed: 1988-08-19
Granted: 1993-07-13
Abstract: La présente invention concerne un procédé pour manoeuvrer des équipements spécialisés d'intervention dans un puits foré ayant au moins une zone fortement déviée par rapport à la verticale, ledit puits foré comportant au moins un premier conduit tubulaire le long duquel sont installés à distance lesdits équipements. Il comporte notamment les étapes suivantes: on introduit dans ledit premier conduit tubulaire un organe de commande, on fixe à une extrémité dudit organe un câble, on descend ledit organe de commande dans ledit conduit tubulaire par pompage hydraulique descendant, on assure le défilement du câble dans le conduit tubulaire à partir de la surface, on remonte l'organe de commande par traction sur le câble à partir de la surface, on manoeuvre sélectivement lesdits équipements spécialisés, lors du passage de l'organe de commande à l'aplomb desdits équipements en descente ou remontée.
Patent CA-1324074-C (CA)
Inventor: NAMBU MASAO
IPC: G01R33/58
Filed: 1988-08-25
Granted: 1993-11-09
Abstract: ABSTRACT OF THE DISCLOSURE:         A method of making a phantom for NMR diagnosis comprises the steps of placing at least one small container having at least a portion of its wall made of a thin film of a plastic material in a large container made of a plastic material, charging a first aqueous solution of polyvinyl alcohol into the small container, charging a second aqueous solution of polyvinyl alcohol into a space defined by the outer wall of the small container and the inner wall of the large container, freezing the first and second aqueous solutions of polyvinyl alcohol to obtain frozen masses, and then thawing the frozen masses.  A composition of the first aqueous solution of polyvinyl alcohol is different from a composition of the second aqueous solution of polyvinyl alcohol.
Patent CA-1296797-C (CA)
Title: Apparatus for closing openings of a hearing aid or an ear adaptor for hearing aids
Inventor: HAERTL CHRISTOF
IPC: H04R25/02
Filed: 1988-10-03
Granted: 1992-03-03
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus for closing an opening of a hearing aid or an ear adaptor for a hearing aid, particularly openings such as sound entry openings, sound exit openings and aeration openings utilizes a micro-porous membrane of an anti-adhesive material which is  introduced  into  the respective  opening.    Preferably,  the membrane is a polytetrafluorethylene material.
Patent CA-1310287-C (CA)
Title: Process for the hydroisomerization of fischer-tropsch wax to produce lubricating oil
Inventor: HAMNER GLEN P
IPC: C10N70/00
Filed: 1988-12-16
Granted: 1992-11-17
Abstract: ABSTRACT OF THE DISCLOSURE       Fischer-Tropsch wax is converted to a lubri-cating oil having a high viscosity index and a low pour point by first hydrotreating the wax under relatively severe conditions and thereafter  hydroisomerizing the hydrotreated wax in the presence of hydrogen on a particular fluorided Group VIII metal-on-alumina catalyst.  The hydroisomerate is then dewaxed to produce a premium lubricating oil base stock.       The preferred hydroisomerization catalyst is a fluorided platinum-on-alumina catalyst containing relatively low surface fluoride, a high concentration of aluminum fluoride hydroxide hydrate and a low nitrogen concentration.
Patent CA-1335977-C (CA)
Inventor: ARAI SHIGEYOSHI
IPC: B01D59/34
Filed: 1989-01-20
Granted: 1995-06-20
Abstract: An enrichment method of carbon 13 by use of the multistage laser irradiation. A mixture of CHClF2 and Br2 is used as a start substance. The mixture is irradiated with laser rays emitted from a carbon dioxide gas laser to obatain CBr2F2 enriched with carbon 13. This CBr2F2 enriched with carbon 13 is once more irradiated with laser rays emitted from a carbon dioxide gas  laser to produce C2Br2F4 which is  further enriched with carbon 13. Alternatively, the product CBr2F2 of the first laser irradiation is once more irradiated together with O2 to produce COF2 which is further enriched with carbon 13.
Patent CA-1296805-C (CA)
Inventor: BEAUDUCEL CLAUDE
IPC: H03M1/18
Filed: 1989-01-20
Granted: 1992-03-03
Abstract: La présente invention a pour objet un dispositif d'acquisition permettant d'amplifier, d'échantillonner et de numériser des signaux à grande dynamique. Après une amplification dasn un amplificateur à gain fixe, les signaux sont appliqués à un échantillonneur puis à un convertisseur analogique-numérique auquel on applique une tension de référence variable VR. Celle-ci est disponible à la sortie d'un multiplexeur aux entrées duquel sont appliquées des tensions dérivées provenant de subdivisions d'une tension calibrée VS. Le choix de la tension est effectué par un ensemble logique en fonction de comparaisons réalisées par des comparateurs entre les tensions échantillonnées et les tensions dérivées. Les signaux numérisés sont représentés par un mot numérique N(Ve) issu du convertisseur 3 et un mot numérique de gain G issu de l'ensemble logique. L'invention peut être appliquée à la numérisation de signaux sismiques par exemple.
Patent CA-1336992-C (CA)
Title: Thermoplastic elastomers based upon chlorinated polyethylene and a crystalline olefin polymer
Inventor: FLYNN JAMES H
IPC: C08L23/28
Filed: 1989-03-21
Granted: 1995-09-12
Abstract: Thermoplastic vulcanizates are prepared by curing, at least partially by dynamic vulcanization, blends of chlorinated polyethylene and crystalline thermoplastic polymers such as polypropylene. Inclusion of a plasticizing material or extender oil, e.g. trioctyl trimellitate, enhances softness and oil resistance of the blends.  Vulcanizing materials include a basic material, normally added with the chlorinated polyethylene, and a derivative of 2,5-dimercapto-1,3,4-thiadiazole or a combination of 2,5-dimercapto-1,3,4-thiadiazole and an activator material such as an amine having a boiling point of 110C or higher and a pk value less than 4.5.
Patent CA-1336294-C (CA)
Inventor: WOOD TONY J
IPC: G05D23/24
Filed: 1989-05-10
Granted: 1995-07-11
Abstract: A solenoid valve used as an expansion valve in a refrigeration circuit has an opening that varies as a function of the pulse width of a high frequency PWM (pulse width modulated) control signal.  A transistor controls the electrical current delivered to the solenoid valve.  The PWM control signal rapidly cycles the transistor on and off at a constant frequency that is sufficiently high to prevent the valve from having enough time within a cycle to move between fully open and closed.  As a result, the valve balances at an intermediate position determined by the relative lengths of the on and off periods of each pulse cycle.  The relative on-off pulse widths, often referred to as, "duty cycle", is varied in response to a temperature sensor to control the flow of refrigerant through the refrigeration circuit.  The duty cycle is also adjusted to compensate for any variations in the supply voltage applied across the solenoid valve.