baber/WOPTO huggingface dataset:
Patent CA-2001334-C (CA)
Inventor: WEISS WILHELM
IPC: B67C3/10
Filed: 1989-10-24
Granted: 1996-02-06
Abstract: In apparatus for filling cans with beverage the can is coupled to the filler valve and purged of atmospheric  air with  a mostly  inert  gas and air mixture derived from the space of the liquid in a storage tank.   When the exhaust valve is closed, another valve opens to permit pure inert gas stored in a reservoir to flow into the can and pressurize it to slightly above atmospheric pressure but below the pressure in the storage tank.  A pre-pressurization valve is then opened to let some of the inert gas and air mixture in the storage tank flow to the can which is occupied by the substantially pure inert gas so practically  none  of  the  downflowing  gas  and  air mixture from the storage tank enters the can although it fills the chamber to which the can is connected and thereby pressurizes the can.  When the can pressure and  storage  tank pressure become  equal,  a  liquid control valve opens to drain liquid from the tank into the can.  Liquid flow is shut off in a conventional manner when the liquid level in the can reaches the lower tip of the pre-pressurizing gas return tube.  as the liquid beverage flows into the can it displaces the most pure inert gas into the space above the liquid in the storage tank so as to increase the concentration of the inert gas in the storage tank.
Patent CA-2003975-C (CA)
Inventor: BECKETT D GREGORY
IPC: A47J36/06
Filed: 1989-11-27
Granted: 1996-06-11
Abstract: A lid for a T.V. dinner tray is constructed to provide a more uniform heating of the frozen prepared foodstuffs  by  controlling  the  flow  of  microwave radiation to the foodstuff, to effect a decreased flow of microwave energy to the foodstuffs in certain zones of the tray and an enhanced flow of microwave energy to the foodstuffs in the remainder of the tray.
Patent CA-2004951-C (CA)
Inventor: VAN TRUMP JAMES EDMOND
IPC: C08G69/46
Filed: 1989-12-08
Granted: 1999-09-28
Abstract: The acidic crumb of poly(paraphenylene terephthalamide) formed from the reaction of terephthaloyl chloride with para-phenylene diamine in an N-alkyl-pyrrolidone with an alkali or alkaline earth metal salt, is dissolved in a defined mixture of a base, a solvent and a co-solvent for use in the directed preparation of fibrous products.
Patent CA-2006509-C (CA)
Title: Crosslinkable polymer composition
Inventor: SULTAN BERNT-AKE
IPC: C08K5/544
Filed: 1989-12-22
Granted: 2000-02-01
Abstract: A crosslinkable polymer composition is described, said composition comprising an olefin copolymer or an olefin graft copolymer with hydrolysable silane groups and a silanol condensation catalyst, as well as a silane compound with at least one hydrolysable organic group. The polymer composition is characterised in that the silane compound has a compatibility with the polymer composition of at least 0.035 mole hydrolysable groups per 1000 g polymer composition, the computability being defined as the residual content which is determined indirectly by measuring the decrease in weight of the composition in moles of hydrolysable groups per 1000 g polymer composition, and which, with an initial content of 0.060 mole hydrolysable groups per 1000 g polymer composition, after storage for 74 h at 60°C in air still has not volatilised, and that the silane compound is represented by the general formula:        R1(SiR2n X3-n)m (I) wherein R1 is a monofunctional hydrocarbyl group having 13-30 carbon atoms, or a difunctional hydrocarbyl group having 4-24 carbon atoms, R2 which may be the same or different, is a hydrocarbyl group having 1-10 carbon atoms, X which may be the same or different, is a hydrolysable organic group, n is 0, 1 or 2, and m is 1 or 2.
Patent CA-2007139-C (CA)
Title: Tube having holes and method for manufacturing the same
Inventor: OHE TATSUYA
IPC: F16L11/00
Filed: 1990-01-04
Granted: 1998-05-12
Abstract: A tube having holes formed at precise positions is obtained by preparing a tube in which a substantially black synthetic resin film portion and a synthetic resin film portion substantially having a color other than black are formed alternately in its circumferential direction and then by drilling the black synthetic resin film portion by a laser beam.
Patent CA-2009867-C (CA)
Inventor: KRANKKALA PAUL L
IPC: C09J103/02
Filed: 1990-02-12
Granted: 1999-12-28
Abstract: A starch-based corrugating adhesive providing a controlled rate of viscosity increase and green bond formation comprising water, starch. caustic alkali, an active boron source, and polyvinyl alcohol having an intermediate degree of hydrolysis (about 92% to 98%), wherein the polyvinyl alcohol constituent imparts a definite increase in the rate of viscosity building of the adhesive, the rate of viscosity increase being controlled to provide an effective green bond and final adhesive bond on a corrugated board surface.
Patent CA-2013398-C (CA)
Title: Multi-unit package particularly for parrallelepiped cartons
Inventor: SAULAS ALAIN
IPC: B65D5/02
Filed: 1990-03-29
Granted: 1998-12-29
Abstract: A package which accommodates a plurality of parallelepiped cartons includes a sleeve having a top wall panel and a bottom wall panel interconnected by spaced side wall panels thereby forming a tubular  structure  in  which  the  parallelepiped  cartons  are accommodated.  The tubular structure includes end wall panels which at  least partially close the ends  of the tubular structure. Corners of the sleeve each formed in part by a side wall panel and an adjacent end wall panel extend substantially the full height of the packaged cartons adjacent to such corners are each formed with a recess.  The recesses of one sleeve are sized and positioned to receive said upper and lower corner portions of a like adjacent sleeve so that the adjacent sleeves can be nested when in flat form.
Patent CA-2018496-C (CA)
Inventor: BONNELL RALPH E
IPC: H05K3/30
Filed: 1990-06-07
Granted: 1992-12-22
Abstract: IMPROVED METHOD OF ATTACHING ELECTRONIC COMPONENTS     Abstract of the Disclosure An improved method for double sided attachment of components to a printed circuit board is described wherein surface mount components soldered to a first surface of the circuit board (backside) are, once the board is inverted during reflow, retained in place only by force of molten solder surface tension.
Patent CA-2036038-C (CA)
Title: Hot-melt silicone pressure sensitive adhesive composition and related methods and articles
Inventor: SWEET RANDALL PAUL
IPC: C09J183/04
Filed: 1991-02-08
Granted: 1997-10-28
Abstract: Hot-melt silicone pressure sensitive adhesive composition, methods of using the composition, article made using the composition and methods of making articles using the composition.  The hot-melt silicone pressure sensitive adhesive composition includes a mixture of (i) a silicone resin, (ii) a silicone fluid and (iii) from about 0.5 to about 10 weight percent, based on the total weight of the silicone resin and the silicone fluid, of a non-flammable hydrocarbon having a weight-average molecular weight of from about 300 to about 1500 as measured by gel permeation chromatography calibrated with narrow distribution polydimethylsiloxane standards.
Patent CA-2037351-C (CA)
Inventor: KUWATA NAOKI
IPC: H04B10/564
Filed: 1991-02-28
Granted: 1994-10-25
Abstract: An art for stabilizing the operating point suitable for an optical transmitter, especially for that including a Mach-Zehnder optical modulator,  is disclosed.  According to this art, deterioration in the waveform of the output optical signal due to the operating point drift can be prevented without depending on the input signal.  Further, by performing an operating point shift under specific conditions, deterioration in the waveform due to wavelength dispersion can be effectively prevented, whether the sign of the wavelength dispersion is positive or negative.
Patent CA-2044451-C (CA)
Inventor: JU DONG S
IPC: E04H15/42
Filed: 1991-06-12
Granted: 1994-12-27
Abstract: Abstract of the disclosure A lower joint folding preventing device for a one touch type dome shaped tent is disclosed.  If the upper joint is locked or released,  the lower joint is also locked or released automatically.   A connecting portion of the lower joint is provided with a round projection and with an elongated slot,  and the middle segment is provided with a socket and a supporting step, in such a manner that the round projection can be mounted upon the supporting step.  Further, a coil spring is installed on the neck portion of the lower segment so that the leading end of the coil spring is able to push the tip of the socket.
Patent CA-2044747-C (CA)
Title: Electronic circuit module with power feed spring assembly
Inventor: KOMOTO MITSUO
IPC: H05K7/10
Filed: 1991-06-17
Granted: 1994-03-29
Abstract: ABSTRACT OF THE DISCLOSURE In an electronic circuit module, an array of male connectors (41, 46) are arranged on a ceramic substrate (40) to establish contact with external female connectors (20) and an array of LSI packages (5) is provided. Conductive layers (43) of power distribution pattern are embedded in the substrate and are coupled to the male connectors (41). Each LSI package includes a conductive housing (52), an LSI chip (50) secured thereto in a thermally conductive relationship and a base plate (51) which establishes source/ground current conduction paths between the chip and the housing and drain/source current conduction paths between the chip and appropriate layers of the ceramic substrate. An array of conductive springs (68) are supported by a lattice structure (60, 64) to establish a pressure contact with the housings of successive LSI packages to allow power currents to be supplied from an external source voltage terminal to all LSI packages. An array of cooling surfaces (73) are in thermal contact with the respective package housings through the apertures (62) of the lattice structure.
Patent CA-2045572-C (CA)
Title: Control apparatus for washing machine
Inventor: KIUCHI MITSUYUKI
IPC: D06F34/22
Filed: 1990-11-20
Granted: 1995-06-20
Abstract: The present invention relates to a control apparatus for a washing machine, which judges the type of dirt and quantity of dirt, etc. in laundry items to be washed, to thereby ensure optimum results for the finished washed items.  In addition, control of washing is executed by judgement operations executed at high speed, to enable highly accurate real-time control.  The apparatus is provided with a transmission factor detection apparatus (19) for detecting the optical transmission factor of the washing liquid within a tub of the washing machine.  The optical transmission factor detected by the transmission factor detection apparatus (19) and the duration of a saturation interval, which elapses from the start of washing until a condition of saturation of the optical transmission factor is attained, are used as information representing the type of dirt and quantity of dirt, etc.  A microcomputer (16) determines the duration of a washing operation, etc, from control tables,  by using the saturation interval and optical transmission factor.
Patent CA-2046508-C (CA)
Title: Process for the regeneration of used foundry sand
Inventor: SCHOTT HANS KLAUS
IPC: B22C5/00
Filed: 1991-07-09
Granted: 1998-04-28
Abstract: A process is disclosed for the regeneration of used foundry sand, whose original molding sand contained as molding material inorganic bonding agents such as bentonite (= "inorganic used sand")  and/or organic bonding agents such as phenolic and/or furan resins  (= "organic used sand").  The used sand to-be-cleaned is soaked with water and subsequently moved into a heated fluidizing bed in its wet condition.
Patent CA-2047685-C (CA)
Title: Purified insulin mediators and purification process for same
Inventor: LARNER JOSEPH
IPC: A61K31/70
Filed: 1990-03-08
Granted: 2000-09-05
Abstract: A method for purifying two distinct insulin mediators to substantial homogeneity, and relative purity values above 80%, comprises adsorption on first anion exchange resin and subsequently on a chelex cation exchange resin column. The chelex resin ion exchange column substantially increases the activity of the recovered mediator. Following purification, the already treated fraction is subjected to three successive thin layer chromatography purification steps, the fast giving, in the presence of ninhydrin stain, a characteristic salmon-color spot, which is indicative of the presence of the mediator. This process can also be used as a screening process; the absence of the salmon-colored spot being indicative of the diabetic state. Structure information on the insulin mediators obtained is given.
Patent CA-2048468-C (CA)
Title: Method for modifying concrete properties
Inventor: VALLE STEPHEN A
IPC: B28C7/04
Filed: 1991-08-06
Granted: 1996-10-22
Abstract: The present invention relates to a method for modifying the properties of a concrete by introducing a solid admixture, contained in a paper package, into a fresh concrete, said solid admixture being selected from the group consisting of air-entraining admixtures, air detrainer admixture, accelerating admixture, alkali-reactivity reducer, superplasticizer, pumping aids, water-reducing admixture, corrosion inhibitor, permeability reducer, fibers, and mixtures thereof; and mixing the fresh concrete in a batch type mixer for sufficient time to cause the packaging material to disintegrate and distribute the admixture relatively uniformly throughout the fresh concrete.
Patent CA-2055438-C (CA)
Title: System for discharging bottom ash from steam producing boilers
Inventor: MAGALDI MARIO
IPC: F23J1/02
Filed: 1991-03-04
Granted: 2002-05-07
Abstract: A system for discharging ash comprises a hopper (40) provided with a system of hydraulically activated valves (44) having the function of separating the hopper environment from the extractor environment, thereby creating an accumulation store inside the hopper (40) which allows brief shutdowns for any required maintenance in the downstream extractor (20) and the plant, and which prevents the direct falling of large lumps of agglomerated ash on to the belt (1) and also, in the case of a multifuel boiler, avoids radiation to the extraction belt (1) when gas or oil is used as fuel.      Downstream of the area of ash discharge from the extractor (20) a system of crushing, cooling, transport and storage of the ash is also provided.
Patent CA-2057438-C (CA)
Title: Injection molding sealing collar with a central hot tip shaft
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/30
Filed: 1991-12-11
Granted: 2005-02-08
Abstract: This invention relates to a hot tip gated injection molding apparatus having a heated manifold to distribute melt to a number of spaced gates. An unheated sealing and conductive member is mounted directly between the heated manifold and the cooled cavity plate in alignment with each gate. The sealing and conductive member has an elongated hot tip shaft which is connected to extend centrally through the bore of an outer collar portion by a number of spaced spiral blades. The collar portion bridges an insulative air space between the hot manifold and cooled cavity plate to prevent melt leaking into it. Heat received through the rear end of the collar portion which abuts directly against the heated manifold is transferred through the blades and the hot tip shaft to the gate area which is aligned with the pointed forward end of the hot tip shaft. The rear end of the hot tip shaft extends rearwardly into a branch of the melt passage to pick up heat from the surrounding melt. The hot tip shaft has a highly conductive inner portion inside an abrasion resistant outer portion to conduct heat to and away from the gate area during different parts of the injection cycle. The spiral blades impart a swirling motion to the melt which flows between them.
Patent CA-2059383-C (CA)
Title: Static magnetic refrigerator
Inventor: SAJI YOSHIRO
IPC: F25B21/00
Filed: 1992-01-15
Granted: 2003-09-09
Abstract: A static magnetic refrigerator comprising a magnet generating a high-intensity magnetic field, a magnetic working material disposed in the high-intensity magnetic field, a magnetic shield disposed between the magnet and the magnetic working material, and a rotating means for rotating the magnetic shield, the magnetic shield comprising a pair of nearly parallel flat plates or a pair of outwardly curved plates facing each other and made of a superconductor, and the magnetic working material is accommodated in the inner space formed by the pair of the flat or curved plates, whereby a magnetization process wherein the magnetic working material is magnetized in the high-intensity magnetic field by way of rotating the magnetic shield at a position allowing the permeation of the magnetic field through the magnetic working material via the pair of the flat or curved plates and a demagnetization process wherein the magnetic working material is demagnetized by way of further rotating the superconducting magnetic shield at another position permitting the shield of the magnetic field via the pair of the flat or curved plates are repeated by the rotating means so that the magnetic working material generates coldness.
Patent CA-2066571-C (CA)
Inventor: WEHRS DAVID L
IPC: G01F1/60
Filed: 1990-09-13
Granted: 2000-11-28
Abstract: Un fluxmètre magnétique produit un flux représentant un potentiel alternatif (V19). Un courant commandé (I12) excite le fluxmètre par des première et des seconde intensités de courant. Une sortie de correction (I26) représente les première et seconde intensités. Un circuit (36) connecté à la sortie de correction (I26) et au potentiel alternatif (V19) oscille à une fréquence représentant le potentiel alternatif après correction des variations des première et seconde intensités. On mesure (38) les fréquences des oscillations aux première et seconde intensités. On calcule (39) une sortie en fonction d'une soustraction des première et seconde fréquences mesurées, de sorte que l'effet de décalage est réduit.
Patent CA-2068244-C (CA)
Title: Container with auxiliary pocket
Inventor: MOIR TRAVIS
IPC: B65D5/44
Filed: 1992-05-08
Granted: 1999-09-07
Abstract: A container for holding a ready to eat food product is provided with means on at least one of its surfaces for holding an item associated with the consumption of said food product.
Patent CA-2068945-C (CA)
Title: Windproof and water resistant composite fabric with barrier layer
Inventor: LUMB DOUGLAS
IPC: D06M17/10
Filed: 1992-05-19
Granted: 1999-09-14
Abstract: A stretchable, drapable, windproof, water resistant and water vapor permeable composite fabric including an inner layer of fabric, a polyurethane barrier and an outer layer of fabric. The barrier is constructed to allow water vapor molecules to travel therethrough, but restricts the passage of wind and liquid water. The water vapor is transported to and travels through the barrier to the outer fabric layer where it is removed to the environment.
Patent CA-2071773-C (CA)
Title: Method and system for reversibly regenerating an imaged planographic printing form, particularly for use in offset printing
Inventor: NUESSEL BARBARA
IPC: B41C1/10
Filed: 1992-06-22
Granted: 1996-09-17
Abstract: To remove hydrophobic particles from the surface of a hydrophilic printing plate, particularly when the printing plate is used in off set printing, an ionized reactive gas is conducted to the surface of the printing plate, and applied thereto, to cause the hydrophobic particles to form volatile reaction products, which are then removed by suction. The gas can be generated either in a burner, preferably supplied with an oxygen/hydrogen mixture, emitted from nozzles spaced between 10 to 50 mm from the printing plate, in which the printing plate and nozzle are relatively moved at a rate of about 20 mm/sec; or, alternatively, the ionized gas is generated in form of a plasma by a plasma generator, for example a magnetron, operating at 2.45 GHz, which plasma is conducted to the surface of the printing plate in a reaction chamber which is physically sealed with respect to the printing plate, so that the reaction with the hydrophobic particles can there occur. The reaction chamber is coupled to a high-vacuum pump, to maintain a vacuum in the order of about 0.5 mbar above the printing plate and within the reaction chamber.
Patent CA-2073930-C (CA)
Title: Heat radiating element and drippings shield for gas-fired barbecues
Inventor: BARKER GORDON ROLAND
IPC: A47J37/07
Filed: 1992-07-15
Granted: 1995-08-01
Abstract: The present invention provides a heat radiating shield which both prevents the dripping of grease onto the gas burners of the barbecue and provides an even transfer of heat to the cooking area.  The invention comprises a smoothly curved, upwardly concave tray which is positioned between the burners and the food-supporting grate. Drip-pings are trapped in the tray and are not permitted to run out of the tray.
Patent CA-2075309-C (CA)
Inventor: LYNCH THOMAS JOHN
IPC: H01R13/52
Filed: 1992-08-05
Granted: 1998-04-28
Abstract: Disclosed is a moisture and temperature resistant electrical  connector  with  a  connector  body  (10,110) containing a terminal (10A,116), for sealingly connecting transmission  means  (90,122)  and  containing  sealant composition.   The sealant composition comprises  (i)  an elastomeric thermoplastic polymer, preferably an organic polymer  composite  comprising  diblock  and  triblock copolymers,  and  (ii)  extender  for  the  elastomeric thermoplastic polymer.  The composition may also include (iii)   a  crosslinked  polymer  which  is  preferably crosslinked   in   the   present   of the   elastomeric thermoplastic polymer and is preferably a silicon-based crosslinked polymer.  The extender is preferably a mixture of a primary low solvency extender and a secondary high solvency extender and may be a mixture of mineral oil and polyisobutene.  The elastomeric thermoplastic polymer may be a block copolymer of a non-aromatic polyolefin and a poly (alkenyl arene).
Patent CA-2075695-C (CA)
Title: Monoclonal antibodies to sulfonated polymers
Inventor: WETEGROVE ROBERT L
IPC: C12N5/20
Filed: 1992-08-10
Granted: 2003-05-20
Abstract: The invention provides a monoclonal antibody having an affinity to a sulfonated copolymer of acrylic acid and acrylamide. The monoclonal molecules of the invention are used in assays to determine the presence or concentration of active sulfonated copolymer in a fluid.
Patent CA-2083318-C (CA)
Inventor: RHYNE MYRON T
IPC: D21F7/00
Filed: 1992-11-19
Granted: 2003-01-28
Abstract: A self-aligning fabric loading harness for installing a fabric body having a leading edge and a plurality of spaced empty grommets disposed proximate to the leading edge onto a papermaking machine, the harness including a line receiving device, having an aperture, spaced from the leading edge; and a line, having first and second ends, being successively and slidably laced through the line receiving device aperture and the aperture of each empty grommet, the first and second ends of the line being separately secured, and a method for installing a fabric body using that harness. The harness and method being particularly useful for installing dryer fabrics onto paper machines.