baber/WOPTO huggingface dataset:
Patent CA-2008638-C (CA)
Title: Process for preparing non-ionic surfactants from 2,2-dimthyl-4- [(oxiran-2-ylmthoxy)mthyl]-1,3-dioxolane and a carboxylic acid; new non-ionic surfactants and their use
Inventor: SEBAG HENRI
IPC: C07C69/708
Filed: 1990-01-26
Granted: 2002-01-15
Abstract: Process for the preparation of nonionic surface-active products by reaction of a carboxylic acid with 1,2-isopropylidene-3- epoxypropylglycerol, according to the reaction scheme: <IMAGE> where R1 is a C8-C30 aliphatic, cycloaliphatic or alkylaryl radical and n denotes a whole or decimal number from 1 to 10.
Patent CA-2011991-C (CA)
Title: Device for mounting insulating double-glazing onto a fixed frame
Inventor: MASSARELLI LIBERTO
IPC: E06B3/54
Filed: 1990-03-12
Granted: 1994-06-07
Abstract: ABSTRACT A device for mounting   double-glazing onto a  fixed frame is formed by two distinct members, the first of which is bonded to the double-glazing and the second is secured to the frame by mechanichal means, and the two are coupled together by a pivotal connection. This device enables any stress applied to the glass to be considerably reduced, thus prolonging the life thereof and reducing the quantity of adhesive required.
Patent CA-2014567-C (CA)
Inventor: KOJIMA MASAYASU
IPC: B21H1/04
Filed: 1990-04-12
Granted: 1994-05-31
Abstract: ABSTRACT OF THE DISCLOSURE     A method of producing a laminated metal belt with a space corresponding to the thickness of resin between respective ring belts by a step for forming a laminated sheet by bonding the number of metal sheets corresponding to the number of ring belts constituting the laminated metal belts of one unit with resin, a step for forming a seamless cylindrical body having predetermined inside and outside diameters from the laminated sheet, a step for cutting the cylindrical body radially into sections to obtain laminated rings and a step for removing resin from the laminated ring.
Patent CA-2017534-C (CA)
Title: Apparatus and method for producing sterile slush and heated sterile liquid
Inventor: TEMPLETON ROBERT JOE
IPC: A61B19/08
Filed: 1990-05-25
Granted: 2000-07-25
Abstract: A surgical slush system for producing a sterile, semi-frozen slush from a sterile liquid. The system includes a slush generating unit having a cabinet with a plurality of louvres for air circulation, a basin at the top of the cabinet, a refrigeration means inside the cabinet for cooling the basin to a temperature below the freezing point of the sterile liquid, and a heating means for heating the basin to a temperature above the freezing point of the sterile liquid. A sterilized drape covers the basin. The drape is impervious to the sterile liquid and is sufficiently flexible to conform substantially to              ~  the interior shape of the basin with the sterile liquid being directly contained by the drape within the basin.      An air filter in the form of a thin flexible sterilized sheet is fixed to and extends outwardly from the margin of the drape and is sized to extend over the louvres.
Patent CA-2018597-C (CA)
Title: Game of skill or chance playable by several participants remote from each other in conjunction with a common event
Inventor: LOCKTON DAVID B
IPC: G06F19/00
Filed: 1990-06-08
Granted: 2000-11-28
Abstract: A game of skill or chance playable by several participants remote from each other in conjunction with a common event, such as a computer game, provides the basic format or template of the game on a floppy disk suitable for use with the remote users' personal computers. Then by connection to a mass communications one way channel, such as an FM SCA channel, variations in the game parameters and characteristics are broadcast at the same time to all of the individual remote players. These characteristics both initialize characteristics of the game and when the game is being played, provide updated playing parameters. A scare can later be uploaded to the central station by, for example, telephone lines or any other convenient means.
Patent CA-2021076-C (CA)
Title: Method and apparatus for achieving current balance in parallel connected switching devices
Inventor: LEZAN GEORGES R E
IPC: H02M1/088
Filed: 1990-07-12
Granted: 1999-11-16
Abstract: A scheme for maintaining current balance within a plurality of semiconductor devices, particularly thyristors and gate turn-off thyristors, which plurality is connected between two electrical power sources which devices are configured to be simultaneously conductive to share the current between the two sources, employs the scheme for maintaining the current within the several devices of the plurality equal. The scheme provides for the generation of individual current signals which represent the individual current magnitudes within the several devices. Further generated is an average current signal representing the average current within the plurality. A difference signal is generated with respect to each of the individual current signals which represents the difference between the average and the individual current signal. The difference signal is then employed to vary the time of application of the next control signal to the associated one of the devices to thereby minimize current imbalance within the plurality.
Patent CA-2025057-C (CA)
Inventor: KUSZ MAXIMILLIAN
IPC: B65D45/02
Filed: 1990-09-11
Granted: 2002-09-10
Abstract: A child resistant closure comprising outer and inner nested closure members each of which has a base wall and a peripheral skirt with sets of lugs on the inner surface of the outer base wall and the outer surface of the inner base wall adapted to engage each other when the outer closure is rotated for application to a container, but slip or cam past each other on inclined surfaces when the outer closure is rotated for removal. At least one integral spring finger extends from one base wall toward the other base wall such that the outer closure member is held out of engagement with the inner closure member.      To remove the closure, the outer closure member must be pressed downward, while simultaneously being rotated. The camming action of the lugs is then resisted by a frictional engagement of corners of the lugs on the outer closure with inclined surfaces on the lugs on the inner closure.
Patent CA-2029442-C (CA)
Title: Power-assist door closer
Inventor: SCHULTZE ECKART F
IPC: E05F3/22
Filed: 1990-11-07
Granted: 1995-05-30
Abstract: An hydraulic door closer has a motor/pump component to assist opening the door by supplying oil under pressure to the closer cylinder.  The component is activated by a switch sensitive to the turning of the closer pinion shaft as the door is moved out of its frame.  Further, the distance which the door must move until the switch activates the motor/pump component is adjustable.  The hydraulic circuitry is conveniently embodied in a single manifold block.
Patent CA-2030905-C (CA)
Title: Preparation of flakes
Inventor: BLANCHARD CLAUDE
IPC: A23L7/10
Filed: 1990-11-27
Granted: 2002-02-19
Abstract: A process and apparatus for the preparation of cereal flakes which comprises extruding a dough at an elevated temperature from an extruder-cooker through a thin, flat slit-like orifice to form an expanded and puffed strand which is stretched until the density is from 75 to 200 g/litre to achieve the desired flaky, layered, crumbly texture, then cut into the final individual flakes which are finally roasted.
Patent CA-2032548-C (CA)
Title: Process and apparatus for the preparation of balloons
Inventor: LANG PHILIP EDWARD
IPC: A63H27/10
Filed: 1990-12-18
Granted: 2002-06-11
Abstract: An apparatus and process are described for turning inside out (i.e. everting) a part of the neck of a balloon, the apparatus essentially comprises an elongate mandrel which is tapered at one end so that it can be inserted into the neck of the balloon, and pressure applying means, which in use press a portion of the neck against the inserted mandrel. The neck is everted simply by a reciprocating motion of the mandrel relative to the pressure applying means. An adhesive glue can then be administered to the everted neck portion. There is further described an automated apparatus for everting a plurality of balloons, applying adhesive to each of the everted neck portions, securing each prepared balloon to a protective, removable strip, and packaging the secured balloon in either a cassette or carob form.
Patent CA-2035217-C (CA)
Title: Launderable prosthetic device
Inventor: MANDELKERN ISABEL
IPC: A61F2/50
Filed: 1991-01-29
Granted: 1994-10-25
Abstract: LAUNDERABLE PROSTHETIC DEVICE               Abstract of the Disclosure A launderable prosthetic device for camouflaging missing or deformed human body mass or parts comprises a plurality of layers which are sized, shaped and interconnected to form a composite structure that, when partially compressed, assimilates the size, shape and resiliency of the camouflaged body mass.  A soft inner liner provides an interface between the composite structure and the human body surface and a smooth outer shield liner provides an interface between the composite structure and an abutting outer garment.  The liners are joined to enclose the composite structure and cooperate to maintain the composite structure in a partially compressed state.          Randomly spaced openings in the layers provide ventilation for the body surface abutting the prosthetic device.  In one embodiment of the device, the layers are progressively sized laterally larger and opposite sides of each of the layers are joined to respective sides of the other layers so as to form a bowed construction adapted to fit a curved surface of a user.
Patent CA-2038051-C (CA)
Title: Azeotropes and the use thereof in the production of rigid foams
Inventor: DOERGE HERMAN P
IPC: C08J9/14
Filed: 1991-03-12
Granted: 2001-10-23
Abstract: The present invention is directed to a novel azeotrope consisting essentially of from 25 to 35% by weight of 2-methylbutane and from 65 to 75 % by weight of 1,1-dichloro-1-fluoroethane, and the use thereof in the production of rigid, closed cell foams.
Patent CA-2041168-C (CA)
Title: Use of alkylcarboxylic acid dimethylamides as crystallization inhibitors
Inventor: PRIESNITZ UWE
IPC: A01N25/22
Filed: 1991-04-24
Granted: 1997-09-30
Abstract: Crystallization oî active material in spraying an aqueous solution of one of (see fig.II) (see fig.III) (see fig.IV) and is prevented by incorporation therein of an alkylcarboxylic acid dimethylamide of the formula (see fig.I) in which R    represents alkyl having 5 to 19 carbon atoms.
Patent CA-2041512-C (CA)
Title: Rotary atomizer cup
Inventor: DAVIS DENNIS
IPC: B05D1/02
Filed: 1991-04-30
Granted: 2001-04-24
Abstract: An atomizing bell or cup for use in a rotary atomizing apparatus includes a generally frusto-conical-shaped wall having an outer surface and an inner flow surface which terminates at an annular atomizing lip. A plurality of radially outwardly extending fins or ribs are formed on the inner flow surface of the cup upstream from the atomizing lip which are circumferentially spaced from one another to provide flow paths therebetween for coating material flowing along the interior surface of the cup such that the coating material is divided into a number of individual streams before reaching the atomizing lip.      These streams are emitted from between adjacent ribs a short distance upstream from the atomizing lip which allows centrifugal force to at least partially flatten the streams forming ribbon-shaped streams, which, when flung outwardly from the atomizing lip, form completely atomized coating particles which are substantially free of air bubbles.
Patent CA-2043075-C (CA)
Title: Dicyclopentadiene activation method and polymerization composition
Inventor: OKUMURA KIN-ICHI
IPC: C08G61/06
Filed: 1991-05-23
Granted: 2004-05-11
Abstract: A highly polymerizable dicyclopentadiene (DCPD) monomer composition is obtained. The dicyclopentadiene so obtained is highly suitable for ring-opening polymerization by metathesis catalysts. The active DCPD yields articles with excellent physical properties upon in-mold polymerization.
Patent CA-2052123-C (CA)
Inventor: BENING CURTIS R
IPC: B62D1/184
Filed: 1991-09-24
Granted: 1994-10-04
Abstract: ABSTRACT    A tilt steering mechanism having a latch plate fixed to the vehicle and having recesses corresponding to particular tilted positions of the steering column.  A member is carried by the steering column for tilting motion therewith, and has a first portion engagable with the recesses.  A mechanism is provided for biasing the member toward engagement with the recesses, and includes a compression spring carried concentrically with the member and having a straightened portion abutable with a notch formed in the member.  The member has a second portion that can be pushed by the operator to shift the member against the force of the biasing mechanism to disengage the member from the recesses.  A mechanism is provided for enclosing the steering column and tilt mechanism through out the range of tilting, and includes a cowl carried by a spring mounted on the steering column.
Patent CA-2052821-C (CA)
Inventor: FUJITA SHOZO
IPC: A47L9/26
Filed: 1991-10-04
Granted: 1995-04-25
Abstract: A cigarette lighter with high operability and safety is proposed.  According to this lighter, when a lock member is rotated in a lighting operation, the lock member is automatically moved to a position to allow the movement of an operating member upon reception of an upward pressure from a spring.  When the operating member is moved after the lighting operation, the lock member is moved to a position to inhibit the movement of the operating member upon reception of a rotary biasing force from the spring, thus automatically locking a lighting operation of the operating member while the lighter is not used.
Patent CA-2055953-C (CA)
Inventor: MOUILLE RENE LOUIS
IPC: B64C27/48
Filed: 1991-11-21
Granted: 1997-04-22
Abstract: Corps de moyeu (1) de rotor de giravion, du type dans lequel chaque pale (2) est reliée audit corps (1) par des articulations et des organes de liaison, comportant deux éléments résistants (7, 8) dont les plans sont sensiblement parallèles l'un par rapport à l'autre et perpendiculaires à l'axe du mât (3) du rotor. Les deux éléments (7, 8) sont séparés l'un de l'autre par un espace qui a une distance suffisante de façon à permettre de loger lesdites articulations qui sont avantageusement réalisées sous la forme des butées sphériques lamifiées (5), dont l'une des armatures (16) est solidaire en mouvement du pied de la pale (2) correspondante, tandis que l'autre armature (17) est fixe par rapport aux deux éléments du corps de moyeu et est disposée au voisinage de la périphérie de ces éléments de manière à constituer une entretoise rigide. Les deux éléments sont des anneaux, un anneau externe (7) et un anneau interne (8) formant chacun une jante rigide et qui sont reliés par une paroi mince (9) de forme sensiblement cylindrique, et qui comporte au moins autant d'ouvertures (10) qu'il y a de pales (2), chaque ouverture (10) ayant des dimensions suffisantes pour le passage des organes d'articulation et de liaison de la pale (2) correspondante avec leurs débattements angulaires.
Patent CA-2056163-C (CA)
Title: Crushing apparatus
Inventor: PEARCE KENNETH M
IPC: B30B9/32
Filed: 1991-11-25
Granted: 1994-03-08
Abstract: Abstract of the Disclosure Title: CRUSHING APPARATUS   The apparatus is for crushing used automotive oil filters, and for squeezing outand collecting the dirty oil. The used filter is placed on the platen of a piston, which is actuated directly by pneumatic pressure. The piston has an area of 400 sq cm, giving a crush force of 3 to 4 tonnes. There are no other moving parts associated with the movement of the piston. The piston platen is set in a chamber with a window for receiving the filter, and a door closes off the chamber during crushing. A pneumatic trip valve is actuated by the act of closing the door, to pressurize the piston. The piston is guided in bearings, comprising strips of anti-friction material set in the cylinder walls, which rub on the same surface as the pneumatic seal. The piston is very heavy and returns under its own weight when pressure is released. The seal/bearing surface of the piston is well lubricated by being splashed with oil from the crushed filter. Grooves in the platen direct jetting oil away from the door.
Patent CA-2056266-C (CA)
Inventor: PETTIGREW LISA A
IPC: C08F220/22
Filed: 1991-11-27
Granted: 1998-08-25
Abstract: An oxygen permeable bifocal contact lens which has a distance vision portion and a near vision portion is made from materials having differing refractive indexes.  The near vision portion has a higher refractive index than the distance portion with a Dk of at least 10.    The distance portion forms the major portion of the lens and is formed as a crosslinked copolymer with a refractive index of not more than 1.49 from monomeric materials which impart oxygen permeability to the finished lens, and the near vision portion similarly is formed as a crosslinked copolymer from a monomer mixture which includes one or more monomers at a concentration and with a refractive index such that the near vision portion has a refractive index of at least 1.54.    The monomer of the near vision portion includes at least one vinyl monomer having a substituted aromatic ring structure to make the monomer bulky and ensure there is only a limited shrinkage on polymerization of such monomers and mixtures containing them.
Patent CA-2057481-C (CA)
Title: Method for characterizing subterranean reservoirs
Inventor: CARLSON FRANCIS M
IPC: E21B49/00
Filed: 1991-12-12
Granted: 1998-05-05
Abstract: A novel method for characterizing multilayer subterranean reservoirs comprising forming a single layer reservoir model representative of the flow parameters of the multilayer reservoir and developing a set of predicted flow rates from a numerical reservoir simulator.  The predicted flow rates are scaled to form a set of dimensionless flow rates.  Differences between actual reservoir flow rates and predicted flow rates obtained from the dimensionless flow rates, are minimized automatically to obtain estimates of flow parameters for each layer of the multilayer reservoir.  Additionally, for a given set of flow parameters, the optimum injection and production well patterns as well as injection and production well operating conditions can be determined for producing hydrocarbon from the multilayer reservoir.
Patent CA-2065247-C (CA)
Title: Quantum well structures
Inventor: BURT MICHAEL GRAHAM
IPC: G02F1/015
Filed: 1990-09-04
Granted: 1998-12-01
Abstract: By forming quantum well (QW) structures with two different heterojunctions having different band offsets it is possible to form QWs having dipoles when subjected to optical excitation. The presence of a dipole in a narr ow enough well results in QWs having absorption edges which, unlike those of conventional QWs, can be shifted to the blue by application of an electric field of appropriate polarity.
Patent CA-2065910-C (CA)
Title: Water blown integral skin polyurethane foams
Inventor: FRANYUTTI SERGIO
IPC: C08G18/12
Filed: 1992-04-13
Granted: 2003-01-28
Abstract: The present invention is directed to an integral skin foam prepared by reacting a specific isocyanate, a specific isocyanate reactive component and water as the only blowing agent.
Patent CA-2068337-C (CA)
Title: Easy opening device for vacuum packed pouch packed as a bag-in-box
Inventor: ALBANESI MARIO
IPC: B65D77/06
Filed: 1990-11-30
Granted: 1995-08-08
Abstract: A removable element (20) is superposed on and joined to the periphery of an aperture (10) which is preformed or precut on one face of a bag (1). A supporting framework (6) is superposed on the removable element, certain edges of which framework, preferably two, approximately coincide with the edges of the removable part, while the other edges of the latter are covered by the body of the framework. A margined corner (21 ) of the removable part (20) is left free to be grasped by the user in order to initiate the detachment and the tearing of the removable part. In order to facilitate the tearing, notches (100) are provided, which are formed on one edge of the removable part. The tearing proceeds along the edges of the framework which cover the removable part so as to uncover, partially or entirely, the preformed or precut aperture which is present on one face of the bag.
Patent CA-2071133-C (CA)
Inventor: ESCHWEY HELMUT
IPC: D04H3/011
Filed: 1992-06-12
Granted: 1996-11-05
Abstract: A biodegradable spun fleece is made of thermoplastic continuous filaments which adhere to each other at their crossing points without binder.  The filaments include at least 50 wt.% biodegradable polycaprolactone with a molecular weight of 35,000 to 70,000.  A process of manufacturing the spun fleece does not require an additional consolidation step after deposition of the spun filaments.  The use of a binder for the consolidation of the fleece is obviated.  The polymer material can be spun in conventional melt spinning arrangements.  The polycaprolactone material can be used in admixture with other materials which either cannot be melt spun in pure form or are not biodegradable and the resulting polymer mixture, surprisingly, can be melt spun and is biodegradable.
Patent CA-2072707-C (CA)
Title: Air-fuel ratio control system for variable valve timing type internal combustion engines
Inventor: AKAZAKI SHUSUKE
IPC: F02D45/00
Filed: 1992-06-29
Granted: 1996-07-09
Abstract: An air-fuel ratio control system for an internal combustion engine having at least one intake valve with its valve timing changeable at least between low-speed valve timing suitable for engine operation in a low engine rotational speed region, and high-speed valve timing suitable for engine operation in a high engine rotational speed region.  When changeover is to be effected from the low-speed valve timing to the high-speed valve timing, an ECU changes the desired air-fuel ratio to be applied when the low-speed valve timing is selected, to one to be applied when the high-speed valve timing is selected, and changes the valve timing to the high-speed valve timing after the desired air-fuel ratio has been changed to the one to be applied when the high-speed valve timing is selected.
Patent CA-2077343-C (CA)
Title: Methode et appareil procurant des canaux a grand debit de donnees pour systeme de communication a etalement du spectre
Inventor: BRUCKERT EUGENE J
IPC: H04J13/18
Filed: 1992-02-13
Granted: 1998-08-18
Abstract: L'invention est constituée par une méthode et un appareil servant à transmettre des signaux à spectre étalé. L'émetteur reçoit des bits de données (200) à un débit particulier. Cet émetteur code (202) ensuite les bits de données reçus (200) en symboles de données (204) à un débit de codage prédéterminé et extrait des codes orthogonaux de longueur prédéterminée (212) de ces symboles de données (208). Il peut prendre en charge des débits binaires variables pour les données reçues en réglant le débit de codage prédéterminé et la longueur prédéterminée des codes orthogonaux selon le débit binaire des données reçues. Finalement, il étale (216) les codes orthogonaux extraits (212) en utilisant un code d'étalement d'utilisateur (214). On peut utiliser une autre méthode et un autre appareil pour transmettre les signaux à spectre étalé. L'émetteur reçoit des bits de données (230) à un débit particulier. Il code (232) ces bits (230) en symboles de données (234) à un débit de codage prédéterminé, puis choisit (248) un canal particulier pour transmettre les symboles de données (244) en étalant (248) ceux-ci au moyen d'un code orthogonal de longueur prédéterminée (246). Il peut prendre en charge des débits binaires variables pour les données reçues en réglant le débit de codage prédéterminé et la longueur de code orthogonal prédéterminée selon le débit binaire des données reçues.