baber/WOPTO huggingface dataset:
Patent CA-2015369-A1 (CA)
Title: Heating system, in particular for motor vehicles, with an internal combustion engine and a heater
Inventor: KRONER MARTIN
IPC: F01M11/00
Filed: 1990-04-25
Abstract: ABSTRACT OF THE DISCLOSURE           A heating system, in particular for motor vehicles, which utilizes waste heat of an internal combustion engine and has a heater that can be operated with liquid fuel for generating heat independently of the operation of the internal combustion engine or in addition to the waste heat of the engine, wherein the heater is associated with an oil storage space of the internal combustion engine.  The heater is arranged with its direction of principal extension essentially is parallel to the axis of the crankshaft and eccentrically, mainly in the oil pan of the internal combustion engine.
Patent CA-2016012-A1 (CA)
Title: Selective stop device for a multi channel frequency switch
Inventor: HODSDON ROY F
IPC: H04B1/38
Filed: 1990-05-03
Abstract: ABSTRACT       A radio transceiver unit is provided which comprises a housing, a radio unit mounted within the housing; a frequency switch mounted within the housing and including a shaft extending above a top plate of the housing, the frequency switch permitting the unit to operate at any of a predetermined number of frequencies. A frequency selector knob is rotatably mounted on the shaft for indexing the frequency switch to any one of the predetermined frequencies, and a stop device is provided for limiting rotation of the knob to any consecutive series of the frequencies from 1 up to and including a maximum available number less one.
Patent CA-2016344-A1 (CA)
IPC: H04L29/06
Filed: 1990-05-09
Abstract: A control method and apparatus for an electronic system having a plurality of functional elements (12, 13, 14; 24, 34), both intelligent and non-intelligent, interconnected by a plurality of time-division multiplexed serial data links (16, 18, 20, 22), wherein information is normally conveyed in time slots or data links. Control information si exchanged between the elements by using one or more of said time slots as control channels for all control information. The format of the control information is compatible with both the intelligent elements and non-intelligent elements. The control information format includes a plurality of bits (D0 - D7) for providing command data, a plurality of address bits (A0 - A4), a valid bit (V) to indicate that the information being transmitted is a valid message, an interrupt bit (I) to signal a microprocessor (12, 32) in an intelligent device to interrupt and service the message, an a parity bit for error checking. <IMAGE>
Patent CA-2018463-A1 (CA)
IPC: E01C13/08
Filed: 1990-06-07
Abstract: A pipe arrangement for a playfield is dis-closed which includes a surface layer and a filter layer beneath the surface layer.  In the filter layer, there is  situated  an  arrangement  of  pipes,  divided  into several sections.  In each section, there are numerous perforated multi-purpose pipes to dry the field and to circulate warm air into it.  These multi-purpose pipes are connected at intervals by their ends to a distribu-tion pipe and these in their turn at intervals by their ends to a main pipe,  which is finally connected to blowing machinery by means of a feed pipe.  The inven-tion is primarily intended to be used in connection with grassy playfields, but it can also be applied to the construction of other types of fields.
Patent CA-2020573-A1 (CA)
Title: Hybrid directional coupler for a radar system
Inventor: DAVIS JOHN W
IPC: G01S13/931
Filed: 1990-07-06
Abstract: ABSTRACT OF THE DISCLOSURE    The invention is directed to a directional coupler for coupling together a radar frequency transmitter to a combined transmitting and receiving antenna, a power absorber and a receiver.  A tunable stub is employed to reflect a selected amount of transmitted energy to the local oscillator (LO) of the receiver for mixing with the incoming received signal.  The coupler can be constructed from any known type RF transmission line suitable for passing or coupling signals of radar frequencies.  A significant amount of the transmitter power is absorbed in a power absorbing RF load allowing only a small amount to be transmitted from the antenna and a still smaller amount fed back as LO to the receiver.  The invention works equally as well on a dish type antenna and a phased array antenna.
Patent CA-2021376-A1 (CA)
Title: Cartridge for explosively operated industrial tools
Inventor: LEIBY DOUGLAS J
IPC: B25C1/16
Filed: 1990-07-17
Abstract: An improved cartridge for use with explosively-operated industrial tools.  More particularly the cartridge includes a gas check having a rigid washer between opposite ends which causes the deformation of the gas check in cooperation with the gases from burning powder.
Patent CA-2025289-A1 (CA)
Title: Silicone macromers and thermoplastic flame retardant silicone-polyphenylene ether graft copolymers obtained therefrom
Inventor: SNOW KEVIN M
IPC: C07F7/08
Filed: 1990-09-13
Abstract: RD-19,575 SILICONE MARCOMERS AND THERMOPLASTIC FLAME RETARDANT SILICON-POLYPHENYLENE ETHER GRAFT COPOLYMERS OBTAINED                       THEREFROM         A silicone cyclic, such as hexaorganotrisiloxane is lithiated with an alkyl lithium compound followed by treatment with a diorganohalosilane to produce a polydiorganosiloxane having a terminal diorganohydridesiloxy unit.  The platinum catalyzed addition of a 2-alkenyl-6-organophenol results in the production of a phenol-siloxane macromer.  Conversion of the phenol-siloxane macromer to a silicone polyphenylene ether graft copolymer is effected by oxidatively coupling the 2,6-diorganophenol to the phenol-siloxane macromer.
Patent CA-2025621-A1 (CA)
Title: Anti-skid tire apparatus
Inventor: SEO JUNG-YOON
IPC: B60C27/16
Filed: 1990-09-18
Abstract: ABSTRACT OF THE DISCLOSURE        An anti-skid tire apparatus with a cover structure which has grooves formed on the tread thereof.   The anti-skid tire apparatus also includes of a plurality of "U"-shaped cleats with jagged edges permanently affixed on apertures in the grooves,  at fixed intervals along the tread of the cover structure.  A rubber belt, with a buckle on its two loose ends passes through rubber looped straps which are sewn into the fastening slots formed on the external sidewall of the cover structure.
Patent CA-2025629-A1 (CA)
Title: Device for determining phase transitions using a sample of molten metal
Inventor: BAERTS CHRISTIAAN E E
IPC: G01N1/12
Filed: 1990-09-18
Abstract: A device to determine phase transitions by means of thermal analysis using a sample taken from molten metal comprises an expendable measuring probe with a solidification chamber into which the molten metal flows, whereby the solidification chamber contains a thermocouple with which the course of cooling is recorded over a specific time period.  According to the invention, the side walls of the solidification chamber 3 comprise a metal casing 4 that completely surrounds the chamber and extends lengthwise of the measuring probe 1.  Both open ends of the casing 4 are covered by plugs 5,6 made of a material whose heat conductivity is substantially less than that of the casing material.  The casing is completely surrounded by a covering 2,8 which is made of a material whose heat conductivity is substantially less than that of the metal casing.  The supply orifice for the molten metal comprises a quartz pipe 9 surrounded by a metal pipe 10.  According to the invention, the mass of the casing 4, which results from its height (h) and the thickness of its walls (b), is proportioned so that the heat which is given off by the molten metal flowing into the solidification chamber and absorbed by the metal casing produces, in the area of the thermocouple, an equilibrium temperature which approximates the solidification temperature as closely as possible.
Patent CA-2026023-A1 (CA)
IPC: G01S13/00
Filed: 1990-09-24
Abstract: A semi-active radar receiver for receiving a sequence of radar pulses and providing radar timing signals in response thereto.  In a most general sense, the semi-active receiver of the present invention includes  a  receiver  10  for  receiving  a  direct transmission of a series of pulses from a radar transmitter 2 and for providing a series of first signal pulses in response thereto. A range gate generator 42 is included for processing the series of first pulses to provide said radar timing signals.  In a more specific embodiment, the receiver includes a filter  40 for processing said received pulses and deriving estimates of the timing of the receipt thereof.  The estimates are then used by the range gate generator 42 to provide said radar timing signals.
Patent CA-2026108-A1 (CA)
Title: Refrigerant composition
IPC: C10M105/54
Filed: 1990-06-05
Abstract: ABSTRACT    Disclosed is a lubricant for use in a refrigera-tion system using a tetrafluoroethane refrigerant, which comprises a fluorine-containing compound repre-sented by the following formula:       (I) wherein X represents a multiple bond-containing monovalent group, and A represents a mono-, bi-or trivalent unsubstituted or partially substi-tuted perfluorocarbon residue, a mono, bi- or trivalent unsubstituted or partially substitut-ed perfluoroether residue or a mono-, bi- or trivalent unsubstituted or partially substitut-ed perfluoropolyether residue.    This lubricant has a good miscibility with a tetrafluo-roethane refrigerant as represented by HFC-134a over a wide range of temperatures ranging from the low temper-ature to the high temperature and is excellent in properties, such as heat resistance, lubricating properties, electrically insulating properties and viscosity-temperature characteristics.
Patent CA-2028987-A1 (CA)
Title: Transformer bushing for field control of hvdc
Inventor: HAMMARSTEN ASA
IPC: H01F27/04
Filed: 1990-10-30
Abstract: ABSTRACT            The invention relates to a condenser body for field control in transformer bushings and the connection of said body to the conductor of a transformer winding for transformers used in HVDC convertor plants.  The condenser body is arranged as a solid of revolution with concentrically laid condenser layers.  It is formed from one end with an outwardly-directed straight frustum of a cone and from the other end with an inwardly-directed straight frustum of a cone.
Patent CA-2031464-A1 (CA)
Title: Extended temperature range polymer dispersed liquid crystal light shutters
Inventor: WEST JOHN L
IPC: G02F1/13
Filed: 1990-12-04
Abstract: ABSTRACT OF THE INVENTION    An extended temperature range polymer dispersed liquid crystal light shutter electrically switchable between a transmissive and an opaque state over a working temperature range of about -40°C to about 100°C.          The shutter includes a polymer-dispersed liquid crystalline (PDLC) material comprising a fairly highly cross-linked transparent matrix having phase-separated microdroplets of liquid crystal dispersed therein, the liquid crystal existing in a supercooled liquid crystalline state at low temperatures.  Such light shutters are employed in various windows and electroop-tic displays, wherever it is desirable to be able to adjust visible or transparency and regardless of temperature extremes.
Patent CA-2040357-A1 (CA)
Inventor: DELAUNAY MARC
IPC: A61M1/34
Filed: 1991-04-12
Abstract: PROCEDE ET DISPOSITIF DE PREPARATION D'UN LIQUIDE DE SUBSTITUTION   ABREGE:      Le procédé consiste à faire s'écouler, de part et d'autre d'une membrane (4) semi-perméable d'un échangeur (1), un premier liquide stérile et apyrogène et un second liquide, ces liquides contenant au moins certains des électrolytes du sang dont au moins un agent tampon ou au moins un élément précurseur d'agent tampon, au moins certains de ces électrolytes ayant des concentrations différentes dans les deux liquides en amont de l'échangeur (1), le liquide de substitution étant constitué par le premier liquide en aval de l'échangeur (1). Ce procédé présente un intérêt particulier dans le cas du traitement d'épuration du sang par hémodiafiltration, le second liquide étant alors utilisé comme liquide de dialyse en aval de l'échangeur (1).    Figure à publier: Figure 2.
Patent CA-2040816-A1 (CA)
Inventor: NGUYEN UY
IPC: A23L27/10
Filed: 1991-04-19
Abstract: An antioxidant composition obtained from the supercritical fluid carbon dioxide extraction of a Labiatae family herb has at least 30% by weight carnosic acid and less than 5 ml water distillable essential oil per 100 grams. The composition is substantially free of organic solvent and is soluble in food-grade oils and grain alcohol. The composition provides an antioxidant activity comparable to that of BHA and BBT.
Patent CA-2043238-A1 (CA)
Title: Speed sensor fault detection system and method
Inventor: MCNINCH JOSEPH H JR
IPC: G01P3/481
Filed: 1991-05-24
Abstract: The control method/system for sensing "tooth or pulse drop-out" type faults in the output signals from a rotational speed sensor assembly (10) of the type utilizing a rotor (12) and a relatively fixed sensor (16) to provide an output comprising a plurality of pulses having a frequency indicative of the rotational speed of the rotor is provided.
Patent CA-2043544-A1 (CA)
Inventor: SHAMOS MORRIS H
IPC: G06K17/00
Filed: 1991-05-30
Abstract: The invention relates to a patient and healthcare provider identification system which includes a database of patient and healthcare provider information including the identity of each patient and provider and some identification criteria (such as fingerprint data); a print scanner for reading the print information from a patient or provider; a control system for matching the print data read by the scanner with the print data stored in memory; and a printer for printing labels or generating stamps or other visually perceptible medium for positively identifying the patient or provider and creating a record of the identification.
Patent CA-2044775-A1 (CA)
Title: Duplex coatings for various substrates
Inventor: QUETS JEAN M
IPC: F01D5/28
Filed: 1991-06-17
Abstract: DUPLEX COATINGS FOR VARIOUS  SUBSTRATES               Abstract of the Disclosure A duplex coating for substrates that comprises an undercoat of tungsten carbide-cobalt having a strain-to-fracture of greater than 4.3x10-3 inch per inch and a top coat of a ceramic material such as alumina in which the ratio of the thickness of the top coat to the undercoat is from 6:1 to 1:3.
Patent CA-2046284-A1 (CA)
Title: P-n-p diamond transistor
Inventor: WELBOURN CHRISOPHER M
IPC: H01L21/331
Filed: 1990-02-01
Abstract: The present invention provides a P-N-P diamond transistor and a method of manufacture thereof.  The transistor comprises a diamond substrate having two p-type semiconducting regions separated by an insulating region with an n-type semiconducting layer established by chemical vapour deposition.  Preferably the p-type regions are obtained by doping with boron and controlling the concentration of nitrogen impurities by the use of nitrogen getters.  The n-type layer preferably contains phosphorus.
Patent CA-2047254-A1 (CA)
Inventor: TURUDIC ANDY
IPC: H04M11/00
Filed: 1991-07-17
Abstract: A  data  transmission  method  and  apparatus provides   for   transmitting   lower   data   rate information  in  a  higher  data  transmission  rate environment.  Information entities to be transmitted are broken into smaller entities called nyblets. Higher data transmission rates are accomodated by accelerating  a  clock  and  clocking  nyblets  from memory  at  rate  that  allows  the  nyblets  to  be serially assembled into expected bit length words. Lower data rate information, which in conventional systems  was  transmitted  redundantly  to  acheive compatability with higher data rate systems, is now transmitted without duplication as a plurality of nyblets in series until the expected bit length is achieved.  The result is that more information can be transmitted over a communication medium, since duplicate or redundant transmission of lower data rate information is avoided.
Patent CA-2048455-A1 (CA)
Title: Use of a press-type fitting to produce an unreleasable connection for thin-walled pipes
Inventor: UNEWISSE HEINZ
IPC: F16L13/16
Filed: 1991-08-06
Abstract: ABSTRACT           The present invention relates to the use of a pressure fitting with a beaded end that contains a sealing ring, for the production of a non-releasable connection between thin-walled pipes that are connected when cold by means of a pressing tool so as to form a shape-locking and force-locking fit with the pressure fitting, with the provision that the seamless or welded pipes and the pressure fittings consist of a copper-nickel-wrought alloy, especially when used for moving sea water and all kinds of indus-trial water in installation technology and in equipment construc-tion, the pipes having an outside diameter in the range from 10 to 100 mm and a wall thickness in the range from 0.5 to 3.0 mm, and at least the area of the pressure fitting that contains the sealing ring being pressed to the pipe.
Patent CA-2049838-A1 (CA)
Inventor: LE POLOZEC XAVIER
IPC: H04L27/38
Filed: 1991-08-26
Abstract: L'invention concerne un démodulateur hyperfréquence pour liaison hertzienne numérique utilisant une modulation de type MAQ, comprenant, sur une voie, un premier circuit de compensation de l'erreur de quadrature (e?) et, sur l'autre voie, un second circuit qui permet de compenser le retard et les variations en température du premier circuit. Le démodulateur trouve application notamment dans le domaine des faisceaux hertziens numériques.
Patent CA-2050673-A1 (CA)
Inventor: GODLESKI PETER J
IPC: A63H3/14
Filed: 1991-09-04
Abstract: DISPLAY APPARATUS & METHOD            ABSTRACT OF THE DISCLOSURE      A display and seat cushion for use at arenas, stadiums, and the like, has a generally hand-shaped foam polymer member having a plurality of  finger portions thereon and a ductile frame extending through the foam polymer member plurality of finger portions so that the foam finger portions can be shaped as desired.  A fabric covering covers the foam polymer member and a glove compartment is formed in the foam polymer member for hand holding the display.  The foam polymer member is shaped and sized to act as a stadium cushion  as  well  as  a  hand-held  display  having changeable, positionable finger portions.  The method of making a display and seat cushion includes forming a pair of generally hand shaped foam polymer members having a plurality of finger portions and forming a ductile frame shaped to fit between the pair of hand shaped  foam members  such that  the  ductile  frame extends into each finger portion and then adhesively attaching the pair of generally hand shaped  foam members together while attaching the ductile frame therebetween and then covering the attached pair of foam members with a fabric so that a hand shaped stadium cushion and display is formed with ductile finger portions.
Patent CA-2050838-A1 (CA)
Title: Process for making improved sodium dithionite suspensions
Inventor: DIADDARIO LEONARD JR
IPC: C01B17/66
Filed: 1991-09-06
Abstract: ABSTRACT     A process for producing stabilized suspensions or slurries of sodium dithionite is disclosed wherein the process comprises mixing water, sodium hydroxide, chelate, a modified xanthan gum and  sodium  dithionite in  any  order,  provided  that  the temperature of the mixture is kept at or below 45 degrees F during and after the addition of sodium dithionite.
Patent CA-2050974-A1 (CA)
Inventor: COLLEGE JOHN W
IPC: B01D53/50
Filed: 1991-09-09
Abstract: Sulfur dioxide is removed from flue gases using an aqueous solution of magnesium components in a wet scrubber (1), with oxidation of a portion of the aqueous discharge from the scrubber. Calcium sulfate (25) is added to the portion of aqueous discharge at the oxidizer (17) to form an oxidized aqueous effluent containing calcium sulfate solids and dissolved magnesium sulfate. The oxidized aqueous effluent is regenerated by addition of lime, in a regeneration tank (31), which precipitates calcium sulfate as gypsum, with gypsum (43) returned to the oxidizer as the calcium sulfate added thereto. Preferably, the aqueous discharge from the oxidizer (17) is divided, with a major portion passed to a separator (59) to remove gypsum, therefrom, while a minor portion is passed to the regeneration tank (31). Magnesium sulfate solution (63), after separation of gypsum (61) from the major portion may also be fed to the regeneration tank (31). <IMAGE>
Patent CA-2052817-A1 (CA)
Title: Method of tattooing human skin
Inventor: WETZSTEIN SUSAN
IPC: B41M1/12
Filed: 1991-10-04
Abstract: ABSTRACT OF THE DISCLOSURE A  method  of  tattooing  human  skin  involving  the following steps.   Firstly,  attaching to  human  skin  a stencil embodying a design.  Secondly, effecting a change to the pigment of those portions of the human skin exposed by the stencil thereby transferring the design from the stencil onto the human skin.
Patent CA-2053105-A1 (CA)
Title: Disposable absorbent child's training pant with stretchable panels
Inventor: SUPRISE JODY D
IPC: A61F13/15
Filed: 1991-10-09
Abstract: Abstract of the Disclosure A disposable absorbent child's training pant having stretchable panels that assist in easily fitting the training pant onto a child and snugly maintaining it in place both before and after an insult. Full waist and leg elastics are provided to improve the fit, performance, and appearance of the pant.
Patent CA-2055161-A1 (CA)
Title: Method for spraying a coating on a disk
Inventor: LAMBERT RICHARD W
IPC: B05D1/02
Filed: 1991-11-08
Abstract: ABSTRACT OF THE DISCLOSURE            In a method to spray a coating of uniform thickness onto a spinning disk, a point is located spacially on the spinning disk at a distance from the center equal to about half of a spray stripe width plus half of the disk radius.  The spray stream is moved in a ring-shaped pattern centered at the point and having a perimeter defined at the stripe mid-line.  The perimeter diameter is equal to the disk radius.  The spray stream is moved around the pattern with successive speeds, namely a base speed for a semicircular outer zone at the periphery of the disk and a smaller inner zone at the center, and lesser speeds for intermediate zones.  For a concentrically contoured disk, between the above cycles the spray stream is affixed perpendicularly to a slanted surface of the spinning disk for a time period sufficient to compensate for a thickness deficiency.
Patent CA-2057360-A1 (CA)
Inventor: MAGNONI FRANCO
IPC: B21H1/04
Filed: 1991-12-10
Abstract: - i -ABSTRACT of the DISCLOSURE.          The invention finds application in  the  field  of cutting  tools,  in  particular for the  cutting of disc-shaped  metal  sheets.  More  precisely, the invention  relates  to  a  disc-shaped  tool (1) equipped with a knife with a circular cutting edge (4),  having laterally two curved flanks  (3).  The knife (4) inserts itself into the width of a disc-shaped metal sheet (2),  partially  separating  it into two sheets (5).
Patent CA-2057816-A1 (CA)
Title: Frames for the backs of seats and the like and to their manufacture methods and devices
Inventor: CHALES BERNARD
IPC: A47C7/40
Filed: 1991-12-17
Abstract: A B S T R A C T       A rigid frame for use as framework in the back of a car seat is constituted by a shell which is itself built up by assembling together two half-shells (3) of stamped sheet metal along their juxtaposed edge  flanges, which flanges extend respectively around an inside perimeter and an outer perimeter of each of the half-shells.  A major portion at least of the length of the juxtaposed flanges of the half-shells is rolled up to form tubes (6, 7) of closed circular section.