baber/WOPTO huggingface dataset:
Patent CA-2216173-A1 (CA)
Title: Asphalt emulsions
Inventor: CHATTERJEE ROGER K
IPC: C09D195/00
Filed: 1996-03-25
Abstract: Disclosed are oil-in-water asphalt emulsions comprising asphalt dispersed as the discontinuous phase in an aqueous continuous phase, the emulsions containing one or more anionic emulsifiers selected from the group consisting of compounds of the formulas (Ia), (Ib), (II), (III), (IVa) and (IVb): (R1CH(OH)-(CH2)m SO3);X (Ia); (R1CH=CH(CH2)m-1SO3)i X  (Ib); (R2O-(AlkO)c CH2COO)i X (II); ((R3)k-(A)-SO3)i X (III); wherein R1, R2 and R3 are C6-40 hydrocarbyl, m is 1-10, X is -H or a cation, c is 1-20, A is phenyl or polycyclic aromatic, k is 1-3, and i is the valence of X; and R4-(OC3H6)0-1-(C(O)NH(CH2)1-3)0-1-N(Z1)(Z2)0-1-ZCOOX (IVa); R4-(OC3H6)0-1(C(O)NH(CH2)1-3)0-1-N(Z1)(Z2)0-1-ZSO3XH (IVb); wherein R4 is C4-24 alkyl or alkylene, f is 1-6, X is -H or a cation, Z is (CH2)f, CH2CHOHCH2, or CH2CH2OCH2CH2, and Z1 and Z2 are C f H2f+1 or C f H2f OH, or in (a) Z1 can be -ZCOOX.
Patent CA-2217365-A1 (CA)
Title: Closure security system
Inventor: LEWIS GARY OWEN
IPC: E05C17/44
Filed: 1996-04-09
Abstract: A security system for a closure such as a door, for example a garage door (2), comprises lock means (4) mounted on the closure (2) and operable from outside the closure (2), a shaft (14) extending through the closure (2) perpendicular thereto to terminate internally of the closure (2) and rotatable on release of the lock means (4), a locking arm (16) mounted on the shaft (14) internally of the closure (2) and rotatable with the shaft (14), and locating means (40) fixedly mounted relative to and internally of the closure (2), preferably on the floor, the arrangement being such that rotation of the shaft (14) results in rotation of the locking arm (16) in a plane parallel with the closure (2) about an axis extending perpendicular to the closure (2) from an inoperative position displaced from the locating means (40) into an operative position co-operating with the locating means (40), the locking means (4) being operable to retain the locking arm (16) in its operative position to prevent opening of the closure (2).
Patent CA-2218233-A1 (CA)
Inventor: GATTO JAMES G
IPC: G06Q20/10
Filed: 1996-04-12
Abstract: L'invention porte sur un système de guichet automatique fonctionnant au moyen d'une carte d'identification (30) propre à chacun des usagers, sur laquelle sont enregistrées des informations relatives à des types de transactions personnalisées prédéfinies par l'utilisateur de la carte et comprenant un poste de transaction (10) muni d'un lecteur (13) effectuant la lecture des informations enregistrées sur la carte, et un écran (15) de présentation du menu personnalisé où figurent un ou plusieurs types de transactions personnalisées sur la base d'informations lues sur la carte. Des transactions personnalisées sont exécutées selon le choix de l'utilisateur dans le menu.
Patent CA-2220489-A1 (CA)
Title: Weapon simulator
Inventor: GLEDHILL PAUL
IPC: F41A33/04
Filed: 1996-05-08
Abstract: A weapon simulator of the kind comprising a combustion chamber (28), means (21, 31) for admitting fuel gas to the combustion chamber, ignition means (23) for igniting fuel gas in the combustion chamber to cause an explosion, an exhaust port (29) in the combustion chamber and outlet valve means (14) for closing the exhaust port and arranged to open rapidly and with audible results in response to explosive pressure rise within the combustion chamber, characterised in that the outlet valve means (14) comprises a collapsible diaphragm (14) and by a breechblock (8, 11) for releasably gripping the collapsible diaphragm whereby the gripped portion of the diaphragm is released on its collapse due to the explosive pressure rise in the combustion chamber.
Patent CA-2225491-A1 (CA)
Inventor: THOMAS JOYCE
IPC: A47G33/06
Filed: 1995-11-29
Abstract: An artificial decorated and lighted Christmas tree (10) which is concentrically collapsible into a shallow open-topped box for storage. When displayed, the artificial tree (10) is preferably hung from a ceiling or other overhead support. The skeleton of the tree consists of a flat disk (15), a member (16) projecting upwardly from the center of the disk (15) from which the artificial tree (10) is suspended, a cylindrical crown (24) of garland supported on the disk (15), at least three rigid wire loops (20, 30, 40) having different diameters, and at least three flexible cords (18A, 18B, 18C, 18D, 22A, 22B, 22C, 22D, 32A, 32B, 32C, 32D) affixed to equally spaced apart edge segments of the disk (15) and to equally spaced apart segments of each one of the rigid wire loops (20, 30, 40). The skeleton of the tree is completely hidden from view by an elongated garland (26) of artificial conifer needles which may include traditional Christmas ornaments and electric lights which is wound successively around each one of the spaced apart rigid wire loops (20, 30, 40) to completely cover and hide the disk (15) and all the flexible cords (18A, 18B, 18C, 18D, 22A, 22B, 22C, 22D, 32A, 32B, 32C, 32D) and rigid wire loops (20, 30, 40) thereby creating an arificial conical Christmas tree (10).
Patent CA-2226464-A1 (CA)
Inventor: MORING STEPHEN E
IPC: G01N27/447
Filed: 1996-07-10
Abstract: Disclosed is a method for increasing the electroosmotic flow rate available for a silica surface. In the method, there is provided an electrophoretic channel which is defined by one or more silica surfaces. The surfaces) are contacted with an alkaline aqueous solution containing a solubilized silicate-monovalent metal complex in an amount effective to increase the acidity of the silica surfaces(s), as evidenced by a reduction in the average bulk pKa of the surface(s). The achieved increase in acidity is greater than would be obtained using an otherwise identical solution lacking said silicate. In one preferred embodiment, the monovalent metal used in the solution is Li+, Na+, or K+. Also disclosed is a method for increasing the acidity of a silica surface, by contacting the surface with an alkaline aqueous solution of the type noted above.
Patent CA-2232166-A1 (CA)
Title: Brush seal having bristles tilted in the circumferential direction
Inventor: BEICHL STEFAN
IPC: F16J15/3288
Filed: 1998-03-16
Abstract: A brush seal (1, 101) seals a circumferential gap (S1) between two relatively rotatable machine components (2, 102; 3, 103), such as the rotor or a shaft and a stator of a fluid flow ma-chine, such as a gas turbine engine. A plurality of seal bris-tles (4, 104) are fixed in a bristle holder (5) in an annular shape, and are mounted on the stator (3, 103) so that the free bristle ends (7, 107) extend toward and provide a seal against a seal surface (9, 109) of the rotor (2, 102). Each bristle includes a middle body portion (4A) that is tilted at a first tilt angle (.alpha.1) in the circumferential direction following the rotation direction, and the free bristle end (7, 107) is bent or angled relative to the tilted body portion (4A) so as to extend at a second tilt angle (.alpha.2) which is smaller than the first tilt angle (.alpha.1). Preferably, the first tilt angle (.alpha.1) is in the range from 30° to 60°, while the second tilt angle (.alpha.2) is in the range from 0° to 15°. The bristles may further be tilted in an axial direction at an angle (.beta.) relative to a radially extending plane. Since the free bristle ends (7, 107) extend substantially perpendicularly to the seal surface (9, 109), the seal effective-ness and the elastic resiliency of the brush seal are maintained, and the bristles are not damaged, independent of the rotation direction of the rotor.
Patent CA-2235147-A1 (CA)
Title: Application of thermal barrier coatings to paper machine drying cylinders to prevent paper edge overdrying
Inventor: POIRIER NICOLE A
IPC: D21F5/06
Filed: 1996-10-18
Abstract: The invention overcomes the problem of paper edge overdrying during the paper drying process on paper machine drying cylinders. It comprises applying a thin ceramic coating onto the circumferential exterior surface of the cylinder near the cylinder edges, thereby forming a thermal barrier coating which decreases paper drying rate at said edges and reduces or eliminates paper edge overdrying.
Patent CA-2236375-A1 (CA)
Inventor: OLAUSSON LENNART
IPC: C02F1/72
Filed: 1996-11-20
Abstract: The invention relates to a method of disinfecting water which has a pH value 7.8, H2O2. The characteristic is that the pH value is adjusted to a value 7.8 and that hydrogen peroxide is added to the water at the said lower pH value in order to oxidize, without presence of free active chlorine, any microorganisms and other organic matter existing in the water.
Patent CA-2237538-A1 (CA)
Title: Automatic transmission fluid having low brookfield viscosity and high shear stability
Inventor: ALEXANDER ALBERT GORDON
IPC: C10M157/04
Filed: 1998-06-11
Abstract: An automatic transmission fluid of low Brookfield viscosity and high shear stability is disclosed which contains a base oil of lubricating viscosity and a combination of a poly alkyl (meth) acrylate viscosity index improver of low Brookfield viscosity and high shear stability and a functionalized poly alkyl (meth) acrylate viscosity index improver with dispersant properties of high Brookfield viscosity and high shear stability.
Patent CA-2238795-A1 (CA)
Inventor: STERNE JASON T
IPC: H04L47/265
Filed: 1998-05-28
Abstract: There is provided a method and a network element for feedback control of a rate of message transmission over a connection in a communications network. The source of message transmission is provided with instructions for setting a rate at which it will transmit messages. The instructions are transported by feedback messages received by the source. The received feedback messages contain an explicit rate of transmission which is the lowest of the explicit rates of transmission corresponding to those determined from states of congestion associated with each of the network elements along the connection. The method includes the step of receiving feedback messages from a backward message path at the network element. The explicit rate of transmission carried by each received feedback message is extracted and stored so that the rate pertaining to a last received feedback message is replaced by that pertaining to a currently received feedback message. The received feedback messages are then stored in a first-in first-out order. Each stored feedback message is retrieved in a first-in first-out order and, when so retrieved, is marked with an explicit rate of transmission. The marked rate of transmission is determined as a function of the stored rate and a rate determined from a state of congestion associated with a contention point of the network element.  The retrieved feedback message, once so marked, is transmitted from the network switch over the backward message path.
Patent CA-2239013-A1 (CA)
Title: Ultrasonic liquid fuel injection apparatus and method
Inventor: JAMESON LEE KIRBY
IPC: F02M65/00
Filed: 1996-12-04
Abstract: An ultrasonic apparatus and a method for injecting a pressurized liquid fuel by applying ultrasonic energy to a portion of the pressurized liquid fuel. The apparatus includes a die housing which defines a chamber adapted to receive a pressurized liquid and a means for applying ultrasonic energy to a portion of the pressurized liquid.      The die housing further includes an inlet adapted to supply the chamber with the pressurized liquid, and an orifice defined by the walls of a die tip. The exit orifice is adapted to receive the pressurized liquid from the chamber and pass the liquid out of the die housing. When the means for applying ultrasonic energy is excited, it applied ultrasonic energy to the pressurized liquid without applying ultrasonic energy to the die tip. The method involves supplying a pressurized liquid to the foregoing apparatus, applying ultrasonic energy to the pressurized liquid but not the die tip while the exit orifice receives pressurized liquid from the chamber, and passing the pressurized liquid out of the exit orifice in the die tip.
Patent CA-2239705-A1 (CA)
Title: Quinazoline-4-one ampa antagonists
Inventor: WELCH WILLARD MCKOWAN JR
IPC: A61P21/00
Filed: 1998-06-05
Abstract: Disclosed are novel quinazolin-4-one derivatives of the formula I (see formula I) (in which the dashed line represents an optional double bond; A is a benzo or thieno ring; B is phenyl, pyridyl or pyrimidyl; X is N or CH; R1 is hydrogen or a substituent; R2 is a substituent such as halo; and R3 and R4 are hydrogen or a substituent), pharmaceutical compositions containing such compounds to treat neurodegenerative, psychotropic, and drug and alcohol induced central and peripheral nervous system disorders.
Patent CA-2241486-A1 (CA)
Title: Olefin polymerwith long chain branching, and process and catalyst system therefor
Inventor: PADLIYA DILIPKUMAR
IPC: C08F10/00
Filed: 1998-06-24
Abstract: A process for production of an olefin polymer having long chain branching is described. The process comprises the step of polymerizing an olefin monomer in the presence of a catalyst system comprising: a catalyst comprising a compound containing vanadium with the proviso that the compound does not comprise a halogen directly bound to the vanadium; an organoaluminum cocatalyst having a halogen to aluminum molar ratio in the range of from about 1 to about 2; and an activator having Formula I:   (see formula I) wherein: R1 is selected from the group comprising a substituted or unsubstituted C1-C10 alkyl, a substituted or unsubstituted C5-C20 aryl group and a substituted or unsubstituted C3-C20 cycloalkyl group, with the proviso that the moiety -C(O)OR1 may be substituted by a member selected from the group comprising a carbonic acid derivative, a keto group and a nitrite group; R2, R3 and R4 may be the same or different and each is selected from one of the following groups: (a) R1; (b) a halogen; and (c) hydrogen, a substituted or unsubstituted C1-C10 alkyl, a substituted or unsubstituted C5-C20 aryl group, a substituted or unsubstituted C1-C10 alkyl oxy group, a substituted or unsubstituted C5-C20 aryl oxy group or C(O)OR7, wherein R7 is a C1-C20 hydrocarbon group; with the provisos that: (i) at least one of R2, R3 and R4 is selected from group (b); and (ii) in the activator of Formula I, all of the following are not satisfied: R1 is a C1-C6 alkyl group, R2 is a C1-C6 alkyl group or C1-C6 alkoxy group, R3 is chlorine, bromine or hydrogen, and R4 chlorine or bromine.
Patent CA-2245040-A1 (CA)
Title: Process for the conversion of a flow containing hydrocarbons by partial oxidation
Inventor: CHEN ZHIJIE
IPC: C10G3/00
Filed: 1998-08-13
Abstract: Air  is  distilled  in  a  single  column  (8) installed on a boat, and from here an oxygen-enriched liquid flow is drawn off. This flow is pressurized by a pump  (9)  and vaporized by heat exchange with air or nitrogen.    The  oxygen  (105)  is  used  for  the  partial oxidation of a flow (101) containing hydrocarbons, for example natural gas.
Patent CA-2245975-A1 (CA)
Title: Plastic bottle
Inventor: TANNER HANS-PETER
IPC: B65D25/38
Filed: 1998-08-26
Abstract: A bottle manufactured by injection molding techniques for use with liquids which diffuse greatly. The bottle and a cap acre of almost continuous double-walled construction. Two concentric walls extend from the container shoulder, wherein an inner container wall is shorter than an outer container wall. The single-walled or double-walled bottom is shaped in such a way that the inner container wall is sealed by contact on the inside and the outside, while the outer container wall is only sewed by interior contact at the bottom.
Patent CA-2247760-A1 (CA)
Title: Segmented pipe couplings employing t-bolts and improved t-bolts therefor
Inventor: DOLE DOUGLAS R
IPC: F16B35/06
Filed: 1998-09-18
Abstract: A segmented pipe coupling includes traction bolts that permit movement of shanks of the traction bolts into an attitude in which the head and nut of the traction bolts engage their respective bolting faces in continuous engagement, thus to eliminate a drop in tensile stress in a shank of the traction bolt due to shifting of the head of the bolt or the nut subsequent to initial torquing down of the nut.
Patent CA-2250784-A1 (CA)
Title: Reactor and method for solid phase peptide synthesis
Inventor: STAPLETON MICHAEL C
IPC: B01J19/00
Filed: 1998-02-10
Abstract: A solid phase peptide synthesis reactor system (1) and method of operating the reactor are provided. The reactor system (1) includes a basket (17) rotatable about an axis within a housing (7) and a sump/receiver (5) which delivers fluid to, and collects fluid from, the housing (7). The basket (17) has a perforate side (23) wall against which a resin cake (R) for the peptide synthesis is formed. The reactor (7) and sump/receiver (5) form a loop or circuit through which solutions are circulated. The circulation of the solutions prevents the reactor (7) from flooding so that the basket (17) will not be submerged in solution and allows for the use of less liquid. Thus greater amino acid concentrations may be used. The method includes forming a resin cake (R) of uniform depth on the wall (23) of the basket (17), and spraying the solutions against the resin cake while spinning the basket. The solutions will pass through the resin cake (R) and drain to the sump (5) to be circulated or recycled through the system or discharged from the system. Before a subsequent solution is introduced into the reactor system (1), the prior solution is purged from the system to help control exposure time of the peptide to the solutions.
Patent CA-2252243-A1 (CA)
Inventor: SIVACOE ORLANDE
IPC: B08B9/04
Filed: 1998-10-29
Abstract: A method of cleaning tubing in an operating heater, in which the tubing has an inlet and an outlet. While the heater is in operation, a hollow, metallic and/or tubular mesh pig is run through the tubing from the inlet to the outlet. Cleaning should be done before contaminant has hardened. An improved pipe pig, preferably hollow, metallic and/or made from tubular mesh, has scraping edges made from longitudinal edges of a wire. The tubular mesh may be a knit, weave or may be knotted. The pig is preferably radially expandable up to twice its fully compressed radius, and may have an expander to force it radially outward. The pipe pig is preferably made of a resilient wire having a polygonal cross-section.
Patent CA-2252426-A1 (CA)
Title: Pharmaceutical grade botanical drugs
Inventor: KHWAJA TASNEEM A
IPC: A61P37/04
Filed: 1997-04-15
Abstract: The present invention relates generally to botanical materials and methods for making such materials in medicinally useful and pharmaceutically acceptable forms. More particularly, the present invention relates to the use of compositional and activity fingerprints in the processing of botanical materials to produce drugs which qualify as pharmaceutical grade compositions which are suitable for use in clinical or veterinary settings to treat and/or ameliorate diseases, disorders or conditions.
Patent CA-2264900-A1 (CA)
Inventor: STEINER HERMANN
IPC: H01R33/09
Filed: 1998-07-02
Abstract: L'invention concerne une lampe à incandescence miniature, conçue pour être montée sur une plaquette de circuits imprimés. Selon l'invention, les contacts (7) du culot comprennent une surface de contact plane (7a), destinée à être brasée sur une plaquette de circuits imprimés; un élément en forme de languette (7b, 7c, 7d), qui permet d'ancrer le contact (7) dans le culot de la lampe; et un élément en forme de crochet (7e), dans lequel est introduite l'extrémité d'une entrée de courant (5) sortant de l'ampoule (1) et qui est soudé avec ladite entrée (5).
Patent CA-2267093-A1 (CA)
Inventor: VIOT JEAN-FRANCOIS
IPC: A61K9/14
Filed: 1998-08-05
Abstract: L'invention concerne une composition conditionnée comprenant au moins un liquide absorbé sur un support contenant une silice précipitée, cette silice se présentant sous forme de billes sensiblement sphériques et possédant: une taille moyenne des billes supérieure à 150 .mu.m, une densité de remplissage à l'état tassé (DRT) supérieure à 0.29, un taux de refus au tamis ayant une ouverture de mailles de 75 .mu.m d'au moins 92 % en poids. Elle concerne également l'utilisation d'une telle silice comme support de liquide.
Patent CA-2267350-A1 (CA)
Title: Processus de microencapsulation mettant en oeuvre des fluides supercritiques
Inventor: SHINE ANNETTE DUDEK
IPC: A61K39/00
Filed: 1997-10-01
Abstract: La présente invention concerne un procédé de microencapsulation d'une substance coeur, ce procédé consistant à a) mélanger une substance coeur avec un polymère d'encapsulation; b) introduire dans le mélange un fluide supercritique capable de gonfler le polymère à une température et une pression suffisantes de façon à maintenir le fluide à un état supercritique; c) permettre au fluide supercritique de pénétrer dans le polymère et de le liquéfier tout en maintenant le fluide à un état supercritique; et d) relâcher rapidement la pression pour solidifier le polymère autour de la substance coeur et former une microcapsule. Ce procédé ne nécessite ni que le polymère, ni que les substances coeur soient solubles dans le fluide supercritique, et il peut être utilisé pour microencapsuler rapidement et efficacement différentes substances dans une variété d'applications.
Patent CA-2273171-A1 (CA)
Inventor: ROTERING LEISHA
IPC: F16K3/03
Filed: 1999-05-28
Abstract: A baffle system for control of fluid delivery using manual or automatic control. The fluid supply bore is controllably occluded using a plurality of individual baffle elements. Each of the individual baffle elements is secured at two places.
Patent CA-2277547-A1 (CA)
Title: Slot machine with pattern-driven award feature
Inventor: SLOMIANY SCOTT
IPC: G07F17/32
Filed: 1999-07-14
Abstract: A pattern-based award system for a slot machine. In one embodiment, a basic payoff is made if a symbol group displayed on the slot machine includes a basic winning combination and a supplemental payoff is made if the basic winning combination matches a target pattern. In another embodiment, an enhanced payoff is made if the symbol group displayed on the slot machine includes a basic winning combination which matches a target pattern; otherwise, a basic payoff is made if the symbol group includes a basic winning combination which does not match the target pattern. The basic payoff in each embodiment comprises a predefined amount of coin(s) or credit(s) or a randomly selected mystery amount. The supplemental or enhanced payoff is the product of the basic payoff amount and a randomly selected mystery multiplier.
Patent CA-2279051-A1 (CA)
Title: Method and system for improving concurrency through early release of unnecessary locks
Inventor: WONG CATHARINA K
IPC: G06F17/30
Filed: 1999-07-29
Abstract: A lock control data structure for an unit of work of an application program.  The unit of work has a set of threads of access for opening a set of objects accessible to the application program. The lock control data structure has a set of object-specific lock models corresponding to the set of objects, and a lock controller for locking each object in the set of objects.  Information regarding the lock requirements for each object are stored in the corresponding object-specific lock model. The lock controller locks and unlocks each object in the set of objects based on the information stored in the corresponding object-specific lock model.