baber/WOPTO huggingface dataset:
Patent CA-2228196-A1 (CA)
Title: Process for preparing an optically active phenylglycidyl acid derivative
Inventor: VERZIJL GERARDUS K M
IPC: C07D301/03
Filed: 1998-01-29
Abstract: The invention relates to a process for preparing an optically active trans-compound having formula (1), in which R represents a phenyl group, whether or not substituted, preferably p-methoxyphenyl, and A is derived from an optically active compound, in which an aldehyde having formula (2), in which R is as defined above, is, in the presence of a base, brought into contact with an optically active acetyl compound having formula (3), in which X represents a leaving group and in which A is derived from an amino alcohol, preferably a .beta.-amino alcohol having a rigid structure.          Particularly good results were obtained when use was made of a compound having formula (3), in which A is derived from an amino indanol compound having formula (4), in which R1 and R2 represent a (hetero)alkyl or (hetero)aryl group, whether or not substituted, having 1-10 C atoms, or R1 and R2 constitute an aromatic or aliphatic ring together with the N atom to which they are bound, in particular in which R1 and R2 each independently of one another represent methyl, ethyl, isopropyl, n-propyl, n-butyl, allyl, benzyl or tosyl.
Patent CA-2231417-A1 (CA)
Title: Disposable self-shielding unit dose syringe guard
Inventor: PEREZ ANTHONY R
IPC: A61M5/31
Filed: 1998-03-06
Abstract: The present invention is directed to an improved guard for a medical cartridge, such as a unit dose syringe or ampule, comprising a body for receiving the cartridge, and a shield slidably attached to the body. In one form, the guard includes only two parts which are pre-assembled and ready to receive a cartridge having its own plunger. The body has locking detents which permanently hold the cartridge in the guard, and has cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. In a second form, the guard also includes a plunger assembly for a cartridge not having its own plunger. The plunger assembly is locked onto the body, permanently holding the cartridge received therein. The parts of the device are preferably molded from plastic and may be clear or of a color, such as a latex color or skin tone.
Patent CA-2231952-A1 (CA)
Inventor: WEISZ PAUL B
IPC: C07K14/515
Filed: 1998-03-12
Abstract: Anti-angiogenic protein composition can be prepared simply and efficiently by contacting cartilage particles containing the protein together with an electrolyte solution and an oligosaccharide bearing a minimum number of anionic substituents per sugar unit, to extract the anti-angiogenic protein from the cartilage particles and to form a complex of the oligosaccharide and the protein. The resultant anti-angiogenic complex can be used for therapeutic treatment of various angiogenic and related diseases.
Patent CA-2232508-A1 (CA)
Inventor: THERY MICHEL
IPC: C07B61/00
Filed: 1998-04-09
Abstract: L'invention concerne un procédé de régénération d'un catalyseur de production d' aromatiques et notamment de reformage, comprenant les étapes de combustion (A), oxychloratio n(B) et calcination (C), dans lequel il est introduit pour l'étape d'oxychloration au mo is un agent chlorant (conduite 19), au moins au gaz contenant de l'oxygène (conduite 18), et de l'eau (conduite 20) tel que le rapport molaire H20/HCl soit de 3 à 50, l'étape d'oxych loration se déroulant en présence d'un gaz d'oxychloration contenant moins de 21% d'oxygène et au moins 50 ppm poids de chlore (calculé HCl), et à une température de 350-600.degr ee.C. L'enceinte de régénération en lit mobile avec utilisation des gaz issus de la co mbustion apport d'eau est également revendiquée.
Patent CA-2232529-A1 (CA)
Inventor: BROMET EMMANUELLE
IPC: B01J38/24
Filed: 1998-04-09
Abstract: L'invention concerne un procédé de régénération d'un lit mobile de catalyseur de reformage ou de production d'hydrocarbures aromatiques, ledit catalyseur referma nt un support, au moins un métal noble et au moins un halogène, procédé comprenant une étape de combustion avec traitement du catalyseur dans au moins 2 zones de combustion successives, procédé dans lequel: -chaque zone de combustion est séparée des zones de combustion adjacentes de façon à pouvoir laisser passer le catalyseur et empêcher le passage des gaz, dans chaque zone est introduit au moins un gaz contenant de l'oxygène et les gaz produits sont extraits de chaque zone, -la sévérité des condition opératoires dans chaque zone s'accroît avec le sens d e l'écoulement du catalyseur. Avantageusement, l'étape de combustion se termine dans une zone de contrôle de fin de combustion caractérisée par une faible voir nulle consommation en oxygène . L'invention concerne également l'appareil pour mettre en oeuvre ce procédé. Figure 2 à publier.
Patent CA-2235496-A1 (CA)
Title: A towing device
Inventor: WALSH PAUL
IPC: B62B5/06
Filed: 1996-10-24
Abstract: The invention relates to a towing device (1) for a golf trolley (10) comprising longitudinal resilient linkage means.     The linkage comprises a spring (7), a damper (4) for the resilient portion, the remainder of the linkage being rigid, and means (9, 11) at one end of the linkage for pivotal attachment of the linkage to the bag-carrying part of the trolley (10). The towing device (1) may be incorporated in the handle (13) of a trolley or may be an accessory attachable to the trolley. The damper may comprise a piston-and-cylinder type damper (2, 3) which may contain air or other gas or oil or other hydraulic fluid.  Embodiments using telescopic cylinders are also described. The extent of pivotal movement of the towing device relative to the bag-carrying part of the trolley is restricted by a flexible link or spring (27). The device may be attached to a belt (22) or other item of clothing on the trunk of a user, and the trolley (10) may have an auxiliary wheel (18) fitted to the bottom of the bag-carrying part.
Patent CA-2240243-A1 (CA)
Inventor: BOFFI PIERPAOLO
IPC: H04B10/27
Filed: 1998-06-10
Abstract: Optical switching device comprising: a) first elementary switching module which in turn comprises i) a crystalline element without internal planes of separation and which is capable of rotating the plane of polarization of a polarized optical signal by a predetermined angle under the action of an optical control beam, and ii) a polarization analyzer capable of selecting, according to a predetermined plane, the said polarized optical signal issuing from the said crystalline element, b) first means for supplying the said polarized optical signal to the said elementary switching module, and c) second means for supplying the said optical control beam to the said elementary switching module, in which the said first and second means route at least two different polarized optical signals and at least one optical control beam in the said crystalline element such that the said at least one control beam is substantially collinear with and superimposed on the said at least two polarized optical signals.
Patent CA-2241041-A1 (CA)
Inventor: MOTTARELLA DIEGO
IPC: H04B10/11
Filed: 1998-06-19
Abstract: An optical device for processing a digital optical signal in parallel and in free space, the said device comprising: a) means of input in guided propagation of a digital optical signal comprising at least one temporal series of n bits; b) means capable of converting the said digital optical signal to a beam of n digital optical signals in guided propagation, each comprising at least one temporal series of n bits; c) means capable of converting the said beam of n digital optical signals in guided propagation, each comprising the said at least one temporal series of n bits, to a beam of n digital optical signals in free space; d) means capable of selecting, in parallel and in free space, a bit preselected from the said at least one temporal series of n bits of each of the said n digital optical signals, so as to transform the said at least one temporal series of n bits into a spatial figure of the said n bits which carries the same information as that previously contained in the said at least one temporal series, the said device further comprising e) optical means capable of modifying, in parallel and in free space, at least one bit of the said spatial figure of the said n bits, the said means being selected by a group comprising means capable of eliminating at least one bit, means capable of inserting at least one bit and means capable of modifying the form of at least one bit, and f) means of output of a processed digital optical signal, comprising at least one series of n bits.
Patent CA-2243890-A1 (CA)
Title: Tamper resistant seal
Inventor: BURT DAVID AUSTIN
IPC: B65D63/10
Filed: 1998-07-27
Abstract: A tamper resistant seal comprises a series of ratchet teeth (12) arranged along a strap (14), with one end of the strap (14) being secured to a body (16) and the other end of the strap (14) being insertable into the body (16) to move the ratchet teeth (12) sequentially past a resiliently deformable catch (18), wherein the resiliently deformable catch (18) includes a pair of opposed jaws (44) which are movable laterally primarily with a vice-like action (spreading) rather than a collet-like action (flexing).
Patent CA-2244693-A1 (CA)
Inventor: ZUPANCIC THOMAS J
IPC: C12Q1/68
Filed: 1997-01-21
Abstract: La présente invention se rapporte à l'expression de différentes formes d'un nouveau récepteur dans les cellules hématopoïétiques et endothéliales. Une variante de ce récepteur a été détectée dans les cellules du cerveau et s'est avérée se lier au produit génique obèse, la leptine. Cette invention se rapporte notamment à des procédés d'utilisation de la leptine afin de stimuler la croissance et le développement des cellules positives hématopoïétiques et endothéliales du récepteur in vitro et in vivo. De plus, ce récepteur est exprimé de manière sélective dans les cellules souches hématopoïétiques présentant un potentiel de repopulation à long terme. Ainsi, les agents qui se lient spécifiquement à ce récepteur peuvent être utilisés pour identifier et isoler les cellules souches dans une grande variété d'applications cliniques.
Patent CA-2247768-A1 (CA)
Title: Dental floss holder
Inventor: RUSSELL ROBERT M
IPC: A61C15/04
Filed: 1998-09-15
Abstract: A dental floss holder includes a pair of arms, each arm having a middle portion and first and second opposite end portions. The first end portion of each arm curves outwardly away from its respective middle portion wherein the middle portions of the arms are positioned proximate one another so as to define a pivot. The second end portions are movable between a first position in which the first end portions of the arms diverge away from one another, and a second position in which the first end portions are moved toward one another. Dental floss material has one end secured to the first end portion of one arm and an opposite end secured to the first end portion of the other arm. The dental floss material has a first tension when the first end portions are in their spaced apart position and a second tension when the first end portions are moved toward one another, said first tension being greater than the second tension. Further embodiments of the dental floss holder are also contemplated.
Patent CA-2251611-A1 (CA)
Inventor: BEAUQUIN JEAN-LOUIS
IPC: F04D13/12
Filed: 1998-01-28
Abstract: Installation de pompage destinée à être montée dans un puits pétrolier (10) s'étendant de la surface jusqu'à une couche de roche pétrolifère, comprenant un tubage (18) à l'extrémité inférieure duquel est montée une pompe (20), un joint (28; 42), monté dans le puits autour du tubage (18) et délimitant une chambre (31) à l'extrémité inférieure du puits, dans laquelle est disposée la pompe. Selon l'invention l'installation comprend, de plus, un hydro-éjecteur (32), dans le tubage (18), comprenant une zone de dépression (34) s'ouvrant dans l'extrémité supérieure de la chambre (31).
Patent CA-2253840-A1 (CA)
Inventor: HEILER DAVID J
IPC: C11D7/32
Filed: 1997-04-30
Abstract: The invention is directed to compositions and methods used as in-the-eye and/or out-of-eye inhibitors of proteinaceous deposits on hydrophilic contact lenses. Compositions of the present invention comprise moderately charged polyquaternium polymers that selectively bind to hydrophilic contact lenses to block the binding of proteinaceous materials. Compositions of the present invention may be used in multipurpose cleaning solutions for contact lenses and can eliminate the need for special enzyme cleaners and the like for removing proteinaceous materials.
Patent CA-2259189-A1 (CA)
Inventor: DASHEVSKY SOPHIA
IPC: C08L101/00
Filed: 1997-06-25
Abstract: The disclosure teaches a blend of a predominant amount of a polyphosphate flame retardant and an effective amount of a liquid crystalline additive for viscosity reduction and compatibilization when blended with a thermoplastic polymer, as compared to use of just the polyphosphate flame retardant alone.  The polyphosphate can comprise resorcinol bis(diphenyl phosphate) and/or its higher oligomers. The liquid can be a liquid crystalline segmented block copolymer or a liquid crystalline oligomer.
Patent CA-2260185-A1 (CA)
Title: Hormone replacement therapy drug formulations for topical application to the skin
Inventor: SAMOUR CARLOS M
IPC: A61K9/06
Filed: 1998-10-02
Abstract: Topical alcoholic or aqueous alcoholic gels containing testosterone, progesterone, estradiol or other hormones have enhanced penetration through skin by including in the formulation 2-n-nonyl-1,3-dioxolane or other hydrocarbyl derivative of 1,3-dioxolane or 1,3-dioxane or acetal, as skin penetration enhancing compound.
Patent CA-2261375-A1 (CA)
Title: Liquid ejecting method and liquid ejecting head
Inventor: TAMURA YASUYUKI
IPC: B41J2/14
Filed: 1999-02-08
Abstract: A liquid ejecting method using a liquid ejecting head having electrothermal transducer elements for generating thermal energy sufficient to create bubbles in liquid and ejection outlets disposed opposed to the electrothermal transducer elements which are arranged at a density not less than 300 per 25.4mm in a line, the liquid ejection head also having liquid flow paths in fluid communication with the ejection outlets, respectively, wherein the bubble generated by the thermal energy generated by the electrothermal transducer element is brought into communication with ambience while an internal pressure of the bubble is less than an ambient pressure, and wherein droplets having volumes not more than 15x10-15m3 are ejected at a frequency not less than 7kHz, said method includes the improvement wherein the liquid flow path of the liquid ejecting head has a height not less than 6µm, and a distance between an upper surface and a lower surface of the ejection outlet is not more than one half of a minimum opening distance through a center of the ejection outlet.
Patent CA-2263487-A1 (CA)
Title: Shelving stand
Inventor: ALNENG CARL-GOERAN
IPC: A47F5/04
Filed: 1997-06-23
Abstract: A shelf stand for goods is proposed which has individually rotatable shelves (10), substantially circular and located one above the other. At the periphery of each shelf (10) there is a driving device (13, 14) adapted to cooperate with driving means (11, 12) on the peripheral part of the shelf for turning or rotating the shelf (10). The shelves are divided into sectors provided with impulse generators cooperating with impulse counters for determining the rotational position of the shelf.
Patent CA-2265465-A1 (CA)
Title: Aqueous solution compositions comprising polymer hydrogel compositions
Inventor: SHEN SHIJI
IPC: A61K8/00
Filed: 1997-08-19
Abstract: The invention relates to hydrogel dispersions/particles capable of trapping water insoluble beneficial agent, yet capable of disintegrating smoothly to impart desirable in use characteristics. A process for preparing the hydrogel dispersions/particles is also described.
Patent CA-2266356-A1 (CA)
Title: Cold pack for vials containing medicine
Inventor: GRABOWSKI PAUL PHILIP
IPC: A61J3/00
Filed: 1997-09-19
Abstract: A portable cold pack for cold storage and transporting of medicinal vials placed on a holder. The cold pack has a hollow, thin-walled housing and a base having a socket depression therein for receiving the holder. The housing and the base define an interior storage space around the holder. The hollow walls of the housing contain therein refreezable liquid for providing cooling energy. The socket depression orients the holder in the storage space in a close relationship to the interior surface of the hollow, thin-walled housing so as to efficiently cool the medicine within the vials. A closure assembly allows repeated access to the holder within the storage space.
Patent CA-2266379-A1 (CA)
Inventor: NILSEN ROBERT B
IPC: G02B5/124
Filed: 1997-09-10
Abstract: Retroreflective material is disclosed which is formed of an array of microprisms (50) which reflect light more uniformly by forming a concave curvature in the base face (51') of the prisms.
Patent CA-2268582-A1 (CA)
Title: Relay for personal interpreter
Inventor: ENGELKE ROBERT M
IPC: G10L15/22
Filed: 1999-04-06
Abstract: A relay is described to facilitate communication through the telephone system between deaf people and hearing people. To overcome the speed limitations inherent in typing, the call assistant at the relay does not type most words but, instead, re-voices the words spoken by the hearing person into a computer operating a voice recognition software package trained to the voice of that call assistant. The conversation-type flow of communications achieved by this type of relay enables the design of a new class of interpreters for the deaf.
Patent CA-2268911-A1 (CA)
Inventor: DYKSTRA ROBERT RICHARD
IPC: C07C233/91
Filed: 1997-10-10
Abstract: L'invention porte sur des activateurs asymétriques de blanchiment de formule (I) dans laquelle L est un groupe nucléofuge sélectionné parmi (II), (III), (IV), (V) et (VI) où j est 0 ou 1, et de plus, lorsque j est 0, i est 0, et lorsque j est 1, i est =0 ou 1. Le groupe espaceur Z lorsqu'il est présent est choisi parmi alkyle, alkaryle, aralkyle, aryle C2-C16, linéaires ou ramifiés, substitués ou non substitués et (VII): dans lequel m = 1 à 10, et chacun des R<4>-R<7> est choisi indépendamment parmi H et CH3; et dans lequel le groupe G peut être R<1> ou R<3>; R<1> est un groupe alkyle C7-C13 saturé ou non saturé à chaîne linéaire ou ramifiée, et de préférence un groupe alkyle C7-C11 saturé à chaîne linéaire ou ramifiée, R<2> est choisi indépendamment parmi alkyle, alkaryle, aralkyle, aryle C1-C8, linéaires ou ramifiés, substitués ou non substitués, et de préférence un groupe alkyle C1-C4 linéaire saturé, et R<3> est un groupe alkyle C1-C4 saturé ou non saturé à chaîne linéaire ou ramifiée. Les composés préférés sont ceux où R<1> est un groupe alkyle C7-C11 saturé à chaîne linéaire ou ramifiée, et plus encore, ceux où R<1> est un groupe alkyle C8 ou C9 linéaire saturé, et R<2>, s'il est présent, et R<3>, sont CH3. L'invention porte également sur des additifs et des compositions de blanchiment comprenant les susdits activateurs et sur des procédés de nettoyage de tissus.
Patent CA-2274697-A1 (CA)
Title: Method and apparatus for fluid contact
Inventor: PAN GUO-CHANG
IPC: B01F3/04
Filed: 1998-10-09
Abstract: A fluids contacting column (50) includes a perforated cover plate (21) positioned over a tray opening (10) and secured within the opening (10). Deflecting members (224, 225, 226) span each perforation (200, 201, 202) in the cover plate (21) to prevent bleed fluid from shooting straight up and hitting the underside of the above tray (1). The deflecting members (224, 225, 226) also provide a surface for dispersing lighter, finer bleed fluid (11) flowing upwardly through the perforations (200, 201, 202) over a central zone of the cover plate (21) and into heavier fluid flowing across the nay (1) in the path of the cover plate (21). The cover plate (21) is positioned over the tray opening (10) by legs (23) which are integral with the cover plate (21) and may be fixed or slidable within the tray opening (10).
Patent CA-2278025-A1 (CA)
Title: Aqueous suspension for nasal administration
Inventor: DOI KOJI
IPC: A61K31/56
Filed: 1998-01-14
Abstract: Loteprednol etabonate having excellent antiinflammatory and antiallergic activities is expected to be developed as a drug for external application but when it is formulated into an aqueous suspension, the aggregation and precipitation of particles tend to take place. According to the present invention, long-term stabilization of the suspension was successfully achieved by formulating loteprednol etabonate with microcrystalline cellulose carmellose sodium. Moreover, the resulting suspension features a remarkably improved intranasal retention and no dermal or mucosal irritation.
Patent CA-2278922-A1 (CA)
Title: Battery booster cables switch
Inventor: MOYER WILLIAM C
IPC: H01R4/24
Filed: 1999-07-26
Abstract: A switch installed to battery booster cables provides a means for direct connection to, or disconnection from two D.C. storage batteries in the absence of an electric current, in a non-sequential procedure. The invention comprises a two component plastic case (12,14) having an integral snap-on feature (20, 22, 24) for fastening the negative cable (200) A  two component positive switch terminal (26, 28), the opposite ends (30, 32) fasten the positive cable. A negative terminal (38, 40) connected to a lighting element (44), having a positive and negative conductor (46, 48). A three component switch control assembly (56, 58, 60). An alternate method of positive cable attachment (FIG. 5). To operate the switch, a spring loaded, metal based plastic button component of the switch control assembly is depressed, contacting and bridging the components of the positive switch terminal, and the positive conductor of the lighting element, completing the electrical circuit, confirmed by viewing the illuminated lighting element through a translucent disc (52) on the case. The circuit is broken by releasing the button and observing the extinguished lighting element.
Patent CA-2280863-A1 (CA)
Inventor: SCHULTE KLAUS
IPC: B01F5/04
Filed: 1998-02-04
Abstract: Disclosed is a method and a device for mixing a polyol constituent containing filling material with an isocyanate constituent in order to produce a polyisocyanate polyaddition reaction mixture, wherein the isocyanate is injected into the polyol constituent at a pressure of 50 to 250 bars and wherein the polyol constituent has a pressure of 0.2 to 2 bars.
Patent CA-2283207-A1 (CA)
Inventor: METKE ANTHONY R
IPC: H04L29/08
Filed: 1999-09-23
Abstract: A system for a networking electronic game units, includes an arcade router coupled with one or more game units at each of a plurality of locations and coupled to a communications resource for supporting bi-directional exchange of information with the one or more game units. A first router is coupled with a first group of the communications resources for supporting bi-directional exchange of information with a first group of game units. A first server is coupled with the first router for controlling the bi-directional exchange of information so as to support interactive play by game units at different locations. Embodiments of the system may include a state synchronizing method for synchronizing the exchange of information among game units which are engaged in interactive play in such a manner that each of the game units operates on substantially the same sequence of incoming information, and a bandwidth manager for controlling access of each game unit to the network based on available bandwidth and on a player skill level associated with each game unit.