baber/WOPTO huggingface dataset:
Patent CA-2000938-C (CA)
Inventor: DIXON DONALD R
IPC: C11D3/37
Filed: 1989-10-18
Granted: 2002-11-26
Abstract: Abstract of the Disclosure A cleaning composition includes a liquid vehicle having dispersed therein, a particulate,  organic, polymeric material.    This  composition  is  used    for  cleaning encrustations from the interior surface of  tubes or other vessels, particularly those of paint   delivery systems.          Such cleaning is accomplished by maintaining a flow of the cleaning composition through  the vessel.  The vehicle may comprise organic or   inorganic solvent mixtures and may include  detergents,    surfactants  and similar ancillary ingredients.
Patent CA-2004518-C (CA)
Title: Chlorinated liquid centers
Inventor: ISAAC EDWARD J
IPC: A63B37/08
Filed: 1989-12-04
Granted: 1994-03-01
Abstract: CHLORINATED LIQUID CENTERS            Abstract of the Disclosure The center of a wound golf ball is first chlorinated to improve the adhesion between the patch and the envelope.  This chlorinated center is then abraded after patching to allow the elastic thread to grip the exterior of the center during winding.
Patent CA-2004525-C (CA)
Title: Improved transition metal crosslinking of acid-containing polymers
Inventor: OWENS JOSEPH M
IPC: C09G1/16
Filed: 1989-12-04
Granted: 2000-05-02
Abstract: Acid-functional polymer is reacted with a transition metal compound at a temperature above the T g of the polymer to produce crosslinked polymer. The process produces a liquid polymer product that dries to a crosslinked film without the required presence of volatile ligands. Improved coatings such as floor polishes are also disclosed.
Patent CA-2005713-C (CA)
Title: Self oscillating power stage for inverted rectifier power supply
Inventor: FLACHENECKER GERHARD
IPC: H02M3/338
Filed: 1989-12-15
Granted: 1999-01-19
Abstract: A d.c.-to-d.c. converter is equipped with a switching regulator in which the energy storage, instead of being a storage choke, is a series-resonant circuit, the input side of which is switched alternately between two different voltages, one of which may be ground potential. The switching is performed by an electronically controlled switch. A current converter is interposed in series between a series-resonant circuit and a full-wave rectifier which charges a capacitor connected across the load circuit. The current converter has an output providing an alternating voltage in phase with the current in the series circuit. After simple processing this alternating voltage is fed back to control the electronic switch, but it is first passed through a correlation circuit in which a regulating voltage at times causes the feedback to be interrupted. The regulating voltage is typically a binary error signal derived by comparison of the output voltage with a reference voltage. The advantage of this regulator is that the switching times of the electronic switch may coincide with the null transitions of the current of the series-resonant circuit, thus providing high efficiency. The converter contains an inverted rectifier power supply which is also usable for other purposes, e.g. as a high frequency generator for a high frequency surgical apparatus. This power supply comprises the series resonant circuit, phase detector means and feedback means for applying switching pulse flanks to the electronic switch. Excitation of oscillation in the inverted rectifier is produced which occurs as accurately as possible at the frequency of resonance of the series resonant circuit. A regulating voltage only blocks or passes the output voltage of a pulse shaping means contained in the phase detector means to input stages of the electronic switch at such times, at which the current in the series resonant circuit is zero or at least as far as possible close to zero.
Patent CA-2011683-C (CA)
Title: Blow-molded polyphenylene sulfide articles
Inventor: BAILEY FAY W
IPC: C08G75/0277
Filed: 1990-03-07
Granted: 1994-10-11
Abstract: Abstract Of The Disclosure Articles are blow-molded from a polyphenylene sulfide resin having a melt flow in a range of from about 1 to about 10 g/10 min., and preferably in a range of from about 4 to about 8 g/10 min. When filler materials such as mica are added, the upper end of the acceptable melt flow range is raised to about 15 g/10 min. By maintaining mold tem-peratures in a range of from about 250° to about 400° F., and preferably from about 275° to about 325° F., the polyphenylene sulfide material in the blow-molded article is provided with a semi-crystalline structure, and is dimen-sionally stable at temperatures of at least 500° F. Filler materials are preferably provided in a range of from about 10 to about 20 weight percent.
Patent CA-2014947-C (CA)
Inventor: INSETTA VICTOR
IPC: H01G4/232
Filed: 1990-04-19
Granted: 1994-03-08
Abstract: PROCESS FOR APPLYING CONDUCTIVE TERMINATIONS TO CERAMIC              COMPONENTS                     ABSTRACT OF THE DISCLOSURE        In  this  process a conductive first layer composed  of finely  divided  metal and finely divided ceramic material in an organic carrier is applied to a surface of an unsintered ceramic body. The conductive layer forms terminations when the body, and the  conductive layer are cofired to sinter and form a  unitary, integral,  monolithic structure. A second conductive metal layer may  be applied to the first layer prior to cofiring to  improve attachment capabilities of the component.  Leads may be attached to the conductive terminations if desired.
Patent CA-2022251-C (CA)
Title: Electron-detector diode biassing scheme for improved writing by an electron beam lithography machine
Inventor: DEVORE WILLIAM JAY
IPC: H01J37/244
Filed: 1990-07-30
Granted: 1998-07-07
Abstract: Disclosed is a biassing scheme for a beam position location apparatus (50) which comprises electron detector diodes (52) in an electron beam lithography machine (10) such that the detector diodes (52) deposit fewer secondary electrons (62) on a substrate (16) being processed by the electron beam (22) and thus reduce or eliminate any charge buildup on said substrate which deflect the electron beam (22) causing pattern distortion.
Patent CA-2024946-C (CA)
Title: Phased array antenna with temperature compensating capability
Inventor: KUWAHARA YOSHIHIKO
IPC: G01S7/40
Filed: 1990-09-10
Granted: 1994-12-13
Abstract: Disclosed is a phased array antenna capable of sufficiently compensating for not only the changes in beam direction but also the changes in beam shape and side lobe level due to temperature and, thereby, insuring the expected MLS          (microwave landing system) performance.  A phased array antenna has a plurality of radiating elements, a power divider for distributing transmitting power to the radiating elements, and a plurality of phase shifters each being connected between the power divider and respective ones of the radiating elements.          Scanning a beam is effected by controlling the amounts of phase shift of the phase shifters.  A characteristic compensating apparatus for the antenna according to the invention, comprises a monitor manifold coupled to the array of the radiating elements for combining outputs radiated from the radiating elements and producing the greatest combined output as a monitor output when the antenna has a predetermined scanning angle, phase error calculating apparatus for calculating, when the antenna radiates a scanning beam of the predetermined angle, phase errors between the outputs of the individual radiating elements and the output of the monitor manifold in response to the combined output of the monitor manifold, and phase shift compensating devices for compensating the amounts of phase shift of the individual phase shifters in response to the calculated phase errors.
Patent CA-2026630-C (CA)
Inventor: WENZEL WILLIAM R
IPC: E21B4/00
Filed: 1990-10-01
Granted: 1994-05-17
Abstract: ABSTRACT OF THE DISCLOSURE A method of increasing the off bottom load capacity of a bearing assembly having an outer tubular member,  an inner tubular  member  telescopically  received  within  the  outer tubular  member,  and  bearings  disposed  between  the  inner tubular  member  and  outer  tubular  member  to  facilitate relative  rotation  of  the  outer  tubular  member  and  inner tubular member while bearing radial and axial  loads.   The method consist of the following described steps.   Firstly, form a first shoulder and a second shoulder in opposed spaced relation on an interior surface of the outer tubular member. Secondly,  form a first shoulder and a second shoulder  in opposed spaced relation on an exterior surface of the inner tubular member.   The shoulders on the inner tubular member are generally parallel to the shoulders on the outer tubular member  thereby  defining a  containment  chamber.    Thirdly, place at least one thrust bearing in the containment chamber. The thrust bearing having a first side race and a second side race.  When the bearing assembly is placed in compression the first shoulder of the outer tubular member bears against the first side race and the second shoulder of the inner tubular member bears against the second side race,  When the bearing assembly is placed in tension  the second shoulder of  the outer tubular member bears against the second side race and the first shoulder of the inner tubular member bears against the first side race.
Patent CA-2026964-C (CA)
Title: Money order imprinter
Inventor: KOPER ROBERT P
IPC: B41K3/58
Filed: 1990-10-04
Granted: 1999-09-28
Abstract: An imprinting apparatus for imprinting checks, money orders and like negotiable instruments includes adjustable type segment members having type characters thereon for printing the dollar and cents amount of the money order in conventional arabic characters and in characters which are readable by an optical character recognition device, the apparatus including two platen assemblies operated by a common operating lever to simultaneously imprint the money order with both conventional arabic and optical character readable information, one of the platen assemblies being operable to effect impact movement of an associated platen in imprinting the form. The apparatus employs a replaceable inked ribbon cartridge including a ribbon bearing a dye-based ink which permeates the money order from front to back as a deterrent to alteration of a dollar amount imprinted thereon.
Patent CA-2029064-C (CA)
Title: Empty/load braking system for railroad cars and valve therefor
Inventor: BEACON ROBERT G
IPC: B60T8/22
Filed: 1990-10-31
Granted: 1995-08-01
Abstract: Empty/load braking apparatus for individually controlling the braking of the trucks of railway cars and an empty/load valve unit for such use and adapted to be mounted on each truck.  The valve unit has a body with a canister as a part thereof or secured thereto with a changeover spool in the body and operable by a load sensing arm, with an air passageway extending between an inlet for receiving pressurized air from the conventional air line and an outlet for connection to a brake cylinder, with a proportional spool for controlling the air passing through the passageway, with a release spool for quick release of air from the brake cylinder upon brake release and with a check valve for preventing the entrance of air into the canister from the braking apparatus during brake release.
Patent CA-2045152-C (CA)
Title: Liquid sprayer
Inventor: MIZUSHIMA HIROSHI
IPC: B05B9/08
Filed: 1990-10-05
Granted: 2002-06-04
Abstract: The present invention has its object, the provision of a liquid sprayer capable of spraying a long time and a simple construction with respect to liquid sprayers having a cylinder and a piston. In order to accomplish this object, the liquid sprayer according to the present invention is constructed so as to have a long piston stroke, and has an operating member up- and downwards,slidably located on the container body having a cylinder, a stem hung from this operating member and fitted into said cylinder, a trunk-like piston being provided at the lower end of the stem sliding in the cylinder together with the up- and downward movements of the operating member, a spring provided in the interior of the cylinder and energizing said piston and said stem downwards, a depressing spraying head provided on the operating member, and a discharge valve provided in the interior of the operating member and communicating said stem with said depressing spraying head together with the depression of the depressing spraying head.
Patent CA-2045681-C (CA)
Title: Paging system with improved acknowledge-back capabilities
Inventor: GUTMAN JOSE
IPC: H04W84/02
Filed: 1990-02-07
Granted: 1997-02-04
Abstract: A paging system (10) comprising a centrally located terminal (12) and a plurality of remote pager units (24) is disclosed wherein both automatic and manual acknowledge back signalling is provided.  An appropriate acknowledge back signal by a called pager within a set interval indicates the message was duly received and understood which is so indicated to the initiating caller.  Failure to respond within the set interval causes the pager unit to send back a negative response which is likewise so indi-cated to the initiating caller.
Patent CA-2046039-C (CA)
Title: Mineral fibre producing method
Inventor: GIBOULT ALAIN
IPC: C03B37/04
Filed: 1991-07-02
Granted: 2003-04-22
Abstract: Method of forming mineral fibres, in which the material to be made into fibres spills in the molten state on the peripheral surface of the first of a series of centrifuging wheels rotating at high speed, to be made into fibres thereon by free centrifuging, the fibres formed by the different centrifuging wheels being picked up by gas streams emitted in the immediate proximity of the said wheels, in a direction essentially parallel to the axes of rotation of the wheels, at least one of these gas streams being emitted at a temperature of between 250 and 900 DEG C, preferably between 300 and 600 DEG C and also preferably around 500 DEG C. 
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Patent CA-2046483-C (CA)
Title: Detergent composition
Inventor: FRY ALAN JOHN
IPC: C11D17/06
Filed: 1991-07-08
Granted: 1997-02-11
Abstract: A tablet of compacted detergent powder comprises an anionic detergent-active compound, a detergency builder, and optionally other detergent ingredients.  The tablet is the compaction product of a particulate mixture of:       (a)  from 2 to 40 wt% of a first particulate component comprising from 20 to 100 wt% [of component (a)] of anionic detergent-active compound, (b)  from 60 to 98 wt % of other ingredients, comprising from 0 to 3 wt% [of component (b)] of anionic detergent-active compound.
Patent CA-2047641-C (CA)
Title: Basic rate interface
Inventor: GANCARCIK ED
IPC: H04L7/033
Filed: 1991-07-23
Granted: 2000-01-11
Abstract: A digital switching system connectable to a public telecommunications network via any one of a plurality of digital circuits and comprising a control unit including a system clock and a system bus for carrying data through the system, an arrangement for synchronizing the system clock with a selected digital circuit, comprising means for detecting a network synchronization signal on the digital circuit, means for routing the detected synchronization signal directly to the system clock, and means for bringing the system clock into synchronization with the detected synchronization signal routed thereto.
Patent CA-2056388-C (CA)
Title: Process for the production of polyethers derived from oxetanes
Inventor: STEWART MALCOLM J
IPC: C08G65/18
Filed: 1990-05-30
Granted: 2002-04-09
Abstract: This invention relates to the production of hydroxy-terminated prepolymers suitable for use in curing reactions with isocya-nates to produce elastomers. The process involves the continuous addition over periods of 12-50 hours of an oxetane monomer to a reaction mixture consisting of a diol initiator and a catalyst capable of catalysing the cationic quasi-living cationic polymerisa-tion of the monomer, the rate of addition being such that the catalyst is always in stoichiometric excess over the monomer. Termi-nation of polymerisation is effected by the addition of brine. Under these conditions, polymers of increased molecular weight and reduced impurity levels are produced.
Patent CA-2057229-C (CA)
Inventor: YACOWITZ HAROLD
IPC: A61M37/00
Filed: 1991-12-06
Granted: 1998-02-17
Abstract: Tattooing apparatus including a vibratable housing carrying a tattooing needle and a source of tattooing pigment coupled by flexible tubing to said needle through a peristaltic pump by which the flow of pigment to the needle is controlled.
Patent CA-2058576-C (CA)
Title: Heat-resistant alloy having high creep rupture strength under high-temperature low-stress conditions and excellent resistance to carburization
Inventor: SUGITANI JUNICHI
IPC: B22D13/02
Filed: 1991-12-30
Granted: 1997-02-04
Abstract: A heat-resistant alloy having a high creep rupture strength under high-temperature low-stress conditions and excellent resistance to carburization even when used at a high temperature exceeding 1100°C.          The alloy comprises, in % by weight, more than 0.1% to less than 1.5% of C, more than 2% to less than 3% of Si, more than 0% to less than 2% of Mn, more than 20% to less than 30% of Cr, more than 25% to less than 40% of Ni, more than 0.6% to less than 2% of Al, and the balance Fe and inevitable impurities.  When required, the alloy contains at least one component selected from the group consisting of 0.01 to 0.5% of Zr, up to 0.2% of N, 0.2 to 2.0% of Nb, 0.2 to 2.0% of W and 0.01 to 0.3% of Ti.
Patent CA-2062890-C (CA)
Title: Reversible time delay beamforming optical architecture for phased-array antennas
Inventor: RIZA NABEEL AGHA
IPC: H01Q3/26
Filed: 1992-03-12
Granted: 2001-11-20
Abstract: A phased array antenna system has optical architecture comprising free space delay units and associated spatial light modulators compatible for operation with temporally incoherent or coherent laser light to produce signals having selected time delays to actuate antenna elements of an antenna array to transmit electromagnetic radiation at a selected beam angle from the phased array. The same optical architecture is used to process electromagnetic signals detected by the antenna array to produce an output signal for display or processing which corresponds to the radiation detected at the selected beam angle.
Patent CA-2072674-C (CA)
Inventor: LARSEN DOUGLAS C
IPC: B60J10/04
Filed: 1992-06-29
Granted: 1997-01-07
Abstract: A belt weatherstrip which is adapted for engagement over an end flange of a vehicle. The belt weatherstrip includes a one-piece core member which has a backing leg, an intermediate leg and a show surface leg which generally form a U-shaped member having a width which fits over the end flange of a vehicle. An elastomeric coating is extruded onto portions of the core member for providing at least one sealing lip extending from the core member. A plurality of perforations formed in the intermediate leg allow expansion in the width of the perforated leg such that the width of the weatherstrip may be varied along the length of the weatherstrip during forming of the weatherstrip. In accordance with the method steps of the present invention a weatherstrip core blank is first provided and thereafter a plurality of perforations are formed in the blank along a longitudinal portion of the blank. A core shape is formed from the blank by stretch bending the blank along the central longitudinal portion having the plurality of perforations for varying the cross-sectional dimension at the plurality of perforations thereby facilitating formation of a weatherstrip having a varying width and cross-sectional dimension.
Patent CA-2078824-C (CA)
Title: Heavy duty auxiliary tower for a repair rack
Inventor: HAMILTON HAROLD FRED
IPC: B21D7/14
Filed: 1992-09-21
Granted: 1996-10-29
Abstract: An anchor force assembly mounted on a repair rack or on the floor in a spaced relation to a pull tower having a chain for applying a tensile force to the damaged vehicle, the anchor force assembly including a base plate assembly which is adapted to be mounted on the edge of the top of the rack, or on the floor, the base plate assembly including a base plate having a clamp mounted on each end, a pair of spacer blocks mounted on the base plate and a tower assembly pivotally mounted on said base plate assembly, the tower assembly including a pivot plate pivotally secured to the plate assembly, a tubular vertical member mounted on said plate, a tubular horizontal member mounted on said plate with one end abutting the vertical member and a tubular gusset mounted between said horizontal and vertical member whereby the chain can be attached to the vehicle with the end of the chain attached to the auxiliary tower whereby the force generated by the pull tower is doubled.
Patent CA-2080017-C (CA)
Title: Method for repairing flow conduits, such as pipe lines
Inventor: KARTTUNEN MIKKO
IPC: F16L55/165
Filed: 1991-04-05
Granted: 2001-08-28
Abstract: In a method for repairing flow con-duits, such as pipe lines, the inner surface of a conduit (7) is provided with a flexible material (8) which includes a curing agent as well as a reinforcement layer (5). This is followed by hardening said curing agent:      According to the invention, said reinforce-ment layer (5) comprises a knitted fabric, by virtue of which said material has a good compliancy.
Patent CA-2080569-C (CA)
Title: Kissing shield and method of use thereof
Inventor: WOOD DELORIS GRAY
IPC: A61F13/00
Filed: 1992-10-14
Granted: 2000-08-22
Abstract: A kissing shield comprised of a thin, flexible membrane and a frame or holder. The membrane is closed on three sides, a fourth side remaining open so that the membrane can be stretched over the frame or holder. The frame or holder adapts over the bottom part of the user's face and has sufficient dimension to cover the lips and most of the cheeks and extends from under the nose to the bottom of the chin.        In use, the membrane is placed over the frame or holder. Using the handle portion of the frame or holder, the user places the kissing shield under his nose, so that it covers his lips, cheeks and chin. The user then positions the kissing shield between his lips and the lips or cheek of the individual he plans to kiss and kisses the intended recipient of his affection.
Patent CA-2081590-C (CA)
Title: Pipe coupling
Inventor: HOHMANN RALF
IPC: F16L37/098
Filed: 1992-10-28
Granted: 1995-07-11
Abstract: One end portion of a pipe, which has a circumferentially extending external bead at the one end portion, is insertable into the internal sockets of an array of arms which are axially movably received in one end portion of a sleeve.  The arms have external surfaces which cooperate with an internal surface of the sleeve to permit limited axial movements of the arms between first and second positions.  When in the first positions, the arms can be flexed radially outwardly to thus permit insertion of the bead into or its extraction from the sockets.  The internal surface of the sleeve and/or the external surfaces of the arms can but need not be conical, either entirely or in part.  The sleeve can be inserted into a bore or hole of a nipple on a radiator or carburetor in a motor vehicle.  One or more O-rings or other suitable sealing elements are installed between the sleeve and the external surface of the one end portion of the properly installed pipe.  The arms can be of one piece with a ring which is confined in the sleeve between the sealing element or elements and the arms.
Patent CA-2085878-C (CA)
Title: Bis-benzo or benzopyrido cyclo hepta piperidene, piperidylidene and piperazine compounds and compositions
Inventor: PIWINSKI JOHN J
IPC: C07D471/04
Filed: 1991-06-21
Granted: 2000-06-13
Abstract: Bis-benzo or benzopyrido piperidene, piperidylidene and piperazine compounds of formula (I), and pharmaceutically acceptable salts thereof are disclosed, wherein Z represents -(C(Ra)2)m-Y-(C(Ra)2n- or (.alpha.). The compounds of formula (I) possess anti-allergic and anti-inflammatory activity. Methods for preparing and using the compounds are also described.