baber/WOPTO huggingface dataset:
Patent CA-2113165-C (CA)
Inventor: ZOLOCK MICHAEL J
IPC: G01F1/84
Filed: 1992-07-02
Granted: 1998-07-28
Abstract: La présente invention se rapporte à une méthode et à un dispositif qui, incorporé à un débitmètre à effet de Coriolis (5), élimine de façon significative les erreurs de mesurage induits par des facteurs de température pouvant être attribuables à des différences de rendement (voir fig. 1) au niveau des différents canaux d'entrée du débitmètre. Plus précisément, deux paires de canaux d'entrée (44, 54 et 64) sont utilisées dans le débitmètre. En fonctionnement, le débitmètre mesure itérativement le délai de phase interne à l'intérieur de chacune des paires de canaux d'entrée, pour ensuite soustraire le délai associé à chacune de celles-ci du débit réel mesuré ultérieurement. Pendant qu'une paire de canaux mesure le débit réel, l'autre paire mesure le délai de phase interne, les deux paires de canaux étant continuellement cyclées entre ces fonctions. Le cycle de fonctionnement des deux paires de canaux étant relativement rapide, la valeur réelle correspondant au délai de phase interne de chacune des paires de canaux traduit avec précision tout changement induit par des facteurs de température attribuables au rendement d'une paire de canaux, ce qui permet d'éliminer les erreurs de mesurage induites par des facteurs de température. Le débitmètre mesure également la température du tuyau adducteur pour éliminer les erreurs de mesurage qui pourraient être induites par des facteurs de température à ce niveau. Le débitmètre assure aussi le maintien et la mise à jour du zéro mécanique uniquement à partir de mesurages à grandeur nulle effectués dans des conditions de bruit suffisamment faible; le zéro mécanique est ensuite déduit des données de mesurage du débit afin d'éliminer les erreurs de mesurage qui autrement se produiraient.
Patent CA-2114804-C (CA)
Inventor: AUBRUN JEAN-NOEL
IPC: G05B21/02
Filed: 1993-05-28
Granted: 1998-06-16
Abstract: Commande adaptative comprenant un système numérique de correction d'erreur (DECS) (51) afin de réduire à près de zéro les erreurs de système de commande en prévoyant un problème et en apportant la correction voulue de façon anticipée. La commande adaptative est utilisée dans un système commandé de type cyclique obéissant à des commandes cycliques répétitives, ce qui permet de prévoir en grande partie le fonctionnement du système pour un nombre important de cycles opératoires. La commande adaptative est incorporée à un système de réfrigération dans lequel sont montés face à face deux réfrigérateurs à cycle de Stirling. Elle permet de commander précisément la fréquence et la forme de l'onde de commande, améliore l'efficacité thermodynamique du système réfrigérateur et permet à chacun des deux réfrigérateurs de supprimer exactement la vibration de l'autre.
Patent CA-2114877-C (CA)
Title: Preparation of carbonic anhydrase inhibitors
Inventor: DEAN WILLIAM D
IPC: C07D333/34
Filed: 1994-02-03
Granted: 1998-11-10
Abstract: Preparation of Carbonic Anhydrase Inhibitors Abstract of the Disclosure Carbonic anhydrase inhibitors, useful in the control of ocular hypertension, and having the formula: wherein:  Rl and R2 are both chosen from H or             C1-4 alkyl; R3 = C1-6 alkyl or CH2(CH2)nOR4 where R4=CH3 or (CH2)nCH3 and n = 1-4; or (CH2)nAr where Ar = unsubstituted phenyl, 3-I           methoxyphenyl, or 4-methoxyphenyl and n = 1 or 2. are prepared by displacing the C(2)-chloro of 3-acetyl-2,5-dichlorothiophene with benzyl mercaptide to form the thioether of structure, which is then converted to 3-acetyl-5-chloro-2-thiophenesulfonamide by reaction with chlorine to form 3-acetyl-5-chloro-2-thiophenesulfenyl chloride, followed by reaction with ammonia to fonn 3-acetyl-5-chloro-2-thiophenesulfenamide, and finally oxidation. Bromination provides 3-bromoacetyl-5-chloro-2-thiophenesulfonamide which is converted to (S)-3,4-dihydro-6-chloro-4-hydroxy-2H-thieno[3,2-e]-1,2-thiazine-1,1-dioxide by reduction with (+)-.beta.-chlorodisopinocampheylborane followed by treatment with aqueous base. Alkylation at N(2) provides the (S)-3,4-dihydro-6-chloro-4-hydroxy-2-substituted-2H-thieno[3,2-e]-1,2 thiazine-1, 1-dioxide. Formation of the C(6) anion is accomplished by halogen-metal exchange, and the anion is reacted with sulfur dioxide to form a lithium sulfinate, which upon reaction with hydroxylamine-O-sulfonic acid provides the (S)-3,4-dihydro-4-hydroxy-2-substituted-2H-thieno[3,2-e]-1,2-thiazine-6-sulfonamide-1, 1-dioxide. Protection of the C(6)-sulfonamide functionality, followed by acti-ration of the C(4)-hydroxyl and displacement with an appropriate amine provides the (R)-3,4-dihydro-4-alkylamino-2-substituted-2H-thienoC3,2 e]-1,2-thiazine-6-sulfonamide-1,1-dioxide.
Patent CA-2115169-C (CA)
Title: Vehicle light, windshield wiper control system
Inventor: BENEDICT CHARLES E
IPC: B60Q1/02
Filed: 1992-08-03
Granted: 2002-11-12
Abstract: A vehicle's input switches relating to ignition (20), lights (41) and moisture (44) or rain provide responsive inputs that feed through a digital logic circuit (12) to outputs of an electronic switching device (14) for automatically activating the vehicle's lights (21. 22) and wipers (23). An alarm (24) may be activated if certain input switches are turned on when the ignition is off. The digi-tal logic circuit (12) may be discrete, a programmable read only memory (PROM) or a programmable logic array (PLA). The elec-tronic switching device (14) may constitute a driver circuit (13) and an integrated circuit which includes both a relay switching cir-cuit (K1, K2) and a switched circuit (S1-S4), for exemple a metal-oxide-semiconductor (MOS) driver and a power metal-ox-ide-semiconductor field-effect-transistor (MOSFET) integrated circuit.
Patent CA-2119792-C (CA)
Title: Composting toilet
Inventor: SUNDBERG HENRIC
IPC: C05F17/90
Filed: 1994-03-24
Granted: 2004-11-16
Abstract: A composting toilet comprising a housing having a seat disposed about an opening communicating with an aeration drum for receiving human waste matter. The drum is rotatably-mounted for rotation about a longitudinal axis oriented horizontally inside the housing which has air inlet and air outlet means for venting the toilet. A removable receptacle adapted to receive decomposed solid waste matter from the aeration drum for periodic removal from the toilet is also provided. The aeration drum has a narrow front end with waste access means for receiving and discharging waste therefrom, and a wide rear end extending radially outwardly from the front end. The rear end has liquid discharge means in fluid communication with the housing and a gas outlet means is disposed opposite the liquid discharge means to cause an airflow through the composting solid waste and for venting any gases which enter the aeration drum or are formed through decomposition inside the drum. The configuration of the drum with the wide rear end is designed to collect said gases in the rear end away from the seat area, provides increased capacity at the rear of the toilet so as to allow the seat which is at the front of the toilet to be lower and more conveniently accessible by a user, and defines a rear bottom surface which is always lower than at the front of the drum thereby improving the separation of liquid waste from solid waste.
Patent CA-2122865-C (CA)
Inventor: TERREAULT GERARD
IPC: G07C9/00
Filed: 1994-05-04
Granted: 1995-11-05
Abstract: A transmitter location system,  and more specifically, a   person   location   system   capable   of   providing   a communication link available for data or speech transmission toward a central station is disclosed. The system comprises at least one modulation signal generating unit coupled to a transmitter  for  producing  a  first  modulated  carrier frequency  signal.  The  system  is  further  comprised  of  a plurality of receiving antennas and corresponding antenna modulators distributed in a plurality of bounded spaces. At least  one  of  the  receiving  antennas  receives  the  first modulated   carrier   frequency   signal   and   produces   a corresponding received carrier frequency signal. The antenna modulators  further have respective antenna  identification code generators for producing a second modulation  signal comprising  a  code  identifying  a  corresponding  receiving antenna. At least one of the antenna modulator produces a respective  composite  modulated  carrier  frequency  signal carrying  the  first  and  second  modulation  signals  and corresponding to the activating transmitter. The transmitter modulator and the antenna modulators are adapted to apply mutually orthogonal modulations. At least one receiver at a central  station  receives  and  demodulates  the  composite modulated carrier frequency signal, whereby the activating transmitter can be located within the plurality of bounded spaces.
Patent CA-2124718-C (CA)
Title: Sequential amplifier
Inventor: ASH DARRELL L
IPC: H03F3/60
Filed: 1994-05-31
Granted: 1998-09-22
Abstract: A  sequential  amplifier  having  at  least  two amplifier stages  separated by a  delay device  such that  switching  means  may  energize  either or  both amplifier stages at any given time to obtain maximum gain of the input signal so long as no oscillations occur between stages,  thus allowing a signal  to be amplified by adjacent  amplifier  stages without  the adverse effects of feedback associated therewith.
Patent CA-2127480-C (CA)
Inventor: SARTHOU JACQUES
IPC: E05B27/00
Filed: 1994-07-06
Granted: 2000-02-15
Abstract: La présente invention concerne un dispositif de verrouillage à commande magnétique, constitué d'une clé et d'un barillet, ledit barillet présentant un axe longitudinal et comportant un stator et un rotor définissant entre eux une interface. Le rotor peut être mis en rotation par la clé autour dudit axe longitudinal du barillet. Le dispositif comprend des aimants prévus au niveau de la clé qui coopèrent avec d'autres aimants mobiles dans le barillet.      Selon l'invention, les aimants de la clé et du barillet sont enserrés dans des douilles en métal ferro-magnétique.      D'autre part, les aimants du barillet sont prévus coulissants au niveau de l'interface, dans des trous ménagés dans le stator et/ou dans des trous ménagés dans le rotor, de manière à verrouiller la rotation dudit rotor.      Les aimants du barillet et ceux de la clé sont disposés avec la même répartition géométrique et sont identiques magnétiquement deux par deux.
Patent CA-2128867-C (CA)
Inventor: CAREY MICHAEL J
IPC: A41D23/00
Filed: 1993-01-27
Granted: 2000-04-18
Abstract: An article of clothing (10) includes a mask member (12) and a scarf member (14) joined together. The mask (12) is formed of a closed-cell neoprene with a fleece interior lining and a Lycra TM exterior surface. A scarf member (14) is secured to the lower edge (24) of the mask member (12) to extend rearwardly about the head of the user and is made of a fleece material. The article of clothing (10) is held in place about the head and neck of the user by VELCRO TM hook and loop fasteners (60, 62).
Patent CA-2129473-C (CA)
Title: Hair coloring composition
Inventor: CASPERSON STEVE
IPC: A61K8/22
Filed: 1994-08-04
Granted: 2003-04-29
Abstract: A two part aqueous composition for coloring human hair which forms a gel on mixing of an alkaline aqueous lotion first part having a pH of from about 7 to about 11 containing from about 0.005% by weight to about 5% by weight of at least one primary intermediate and at least one coupler for the formation of oxidation dyes, from about 0.1% to about 5% of a monomeric quaternary ammonium compound having one long chain alkyl substituent, from about 0.5% to about 15% by weight of an amphoteric surfactant and at least 70% by weight water, and an aqueous developer second part having a pH of from about 2 to about 6 containing from about 0.5% by weight to about 40% by weight of a peroxide oxidizer and from about 0.1% by weight to about 20% by weight of a water insoluble anionic polymer which dissolves in the formed gel.
Patent CA-2136626-C (CA)
Title: Production of high purity olefins
Inventor: JANSSEN MARCEL J G
IPC: B01J29/88
Filed: 1993-05-27
Granted: 2000-10-03
Abstract: A process for converting an oxygenate feed to high purity olefins such as polymer-grade propylene (C3o/C3= < 0.05) at a temperature of about 450 °C (842 °F), using a molecular sieve catalyst having a high preselected Si/A12 ratio (such as ZSM-5, ZSM-48) or a preselected Si/Fez ratio (such as FeZSM-5), or SAPO-34.
Patent CA-2137246-C (CA)
Title: Powered wheelchair with a detachable power drive assembly
Inventor: OKAMOTO JAMES
IPC: A61G5/04
Filed: 1993-05-18
Granted: 2005-04-05
Abstract: A wheelchair (20) including a wheelchair frame (22) and a seat assembly (24) carried by the wheelchair frame (22). A detachable power drive assembly (32) having power driven wheels (40, 40') is releasably coupled to the wheelchair frame (22) and is mounted for selective removal of the drive assembly (32) as a unit from the wheelchair frame (22). Wheel mounting ports (76, 76') are also provided in the wheelchair frame (22) for releasably receiving a pair of manually-operable drive wheels (34, 34'). An anti-tip suspension (80) is also provided and includes a suspension arm (84) which is mounted to resist rearward tipping of the wheel-chair by a non-linear restoring force. A wheel lock (108) is mounted for movement between a deployed operable position and a stored inoperable position. In the deployed position, the wheel lock (108) extends laterally outwardly of the wheelchair frame (22) for engagement with and braking of manually operable drive wheels (34, 34').
Patent CA-2141056-C (CA)
Inventor: PFIRRMANN ROLF WILHELM
IPC: A61P1/02
Filed: 1993-07-29
Granted: 2005-02-15
Abstract: The present invention provides a new means of combatting severe dentoalveolar infections such as dental gangrene, parodontitis and abscesses which involves the administration of the methylol-transfer agents taurolidine and/or taurultam. In one embodiment the taurolidine and/or taurultam compositions may be administered prophylactically to combat post-operative infection. Certain novel compositions comprising taurolidine and or taurultam are also described.
Patent CA-2141112-C (CA)
Inventor: LOREE DWIGHT N
IPC: E21B43/25
Filed: 1995-01-25
Granted: 2002-11-19
Abstract: Linear olefin monomers,  and particularly alpha-olefins, having a pour point greater than -102.degree., a flash point greater than 10.degree. and a boiling point greater than 121.degree. are proposed as frac fluids in treatment of oil and gas wells by fracturing. Linear olefin monomers  are  injected  into  the well,  and fracturing pressures applied to the well to fracture the well. Linear olefin monomers may be mixed with a liquified drive fluid such as CO2, preferably with the CO2 forming a miscible bank ahead of the linear olefin monomers for use in driving the load fluid from the well.
Patent CA-2146800-C (CA)
Title: Push-pull modulator driver circuits
Inventor: MILLER DAVID ANDREW BARCLAY
IPC: G02F1/01
Filed: 1995-04-11
Granted: 1999-09-14
Abstract: A drive circuit for increasing the voltage range applied across optical modulators in a transmitter stage of an optical communication system. The circuit comprises a first switch and a second switch connected thereto.   The first switch is responsive to a first input signal and has a maximum voltage drop equal to a first reference voltage. The second switch is responsive to a second input signal and has a maximum voltage drop equal to a second reference voltage.   A modulator is connected between the first and second switches so that, depending on the values of the first and second input signals,  the maximum voltage drop across the modulator will be a value greater than either the first or the second reference voltage.
Patent CA-2148527-C (CA)
Inventor: WATSON CHARLES FRANKLIN
IPC: B01D53/047
Filed: 1995-05-03
Granted: 1998-12-29
Abstract: A process for separating a feed gas mixture into a more strongly adsorbable component and a less strongly adsorbable component in a plurality of adsorbent beds containing an adsorbent selective for the more strongly adsorbable component with two cocurrent depressurizations, first to provide product and then to provide a purge gas, and using a combination of less strongly adsorbable component and feed gas mixture to repressurize the adsorbent bed. Oxygen product can be recovered from air at high recovery using the process. I
Patent CA-2150007-C (CA)
Inventor: MULLANEY JULIAN SEAN
IPC: G02B6/36
Filed: 1993-11-20
Granted: 2004-05-11
Abstract: A fiber optic splice closure (30) includes a series of stacked splice trays (35) pivotally secured within a housing, and oval shaped generally flexible transport tubes (40) carrying the exposed optical fibers to the splice trays within the closure. The transport tubes have a differential flexibility to permit bending in a direction generally normal to the major dimension of the tube while preventing bending in a direction generally normal to the minor dimension of the tube. Accordingly, optical fiber ribbons carried by the transport tubes an protected from bending in a direction normal to their minor dimension. The splice trays are pivotally secured at one end to a bracket (37) secured to an end cap (32) of the housing. A hinge (90) for each splice tray includes decants (95a, 95b, 95c) to hold an individual tray in a raised position to thereby facilitate access to an underlying tray. In addition, splice holders (36) are provided on each splice tray and include a series of generally flexible walls (78) extending outwardly from a base (72). The flexible walls further include hollow cavities (84) to more readily accommodate splices (70) of different sizes. A generally rigid shell (71) with a predetermined pattern of openings (73) therein is positioned to overlie the base carrying the flexible walls.
Patent CA-2155050-C (CA)
Inventor: TUNLEY TREVOR
IPC: C22B3/18
Filed: 1995-07-31
Granted: 2002-10-01
Abstract: The production of nickel from a sulphide ore by heap leaching the ore by subjecting the ore to biological oxidation, separating nickel from iron, into an eluate solution, by solvent extraction or the use of an ion exchange reagent, and electrowinning ferronickel from the eluate solution.
Patent CA-2170501-C (CA)
Inventor: SCHULZ RHONDA KAY
IPC: C11D11/00
Filed: 1994-12-16
Granted: 2008-01-29
Abstract: L'invention concerne un procédé de préparation d'une composition de nettoyage solide, homogène, à base d'urée, sans application de chaleur d'une source extérieure pour fondre l'urée. Les compositions de nettoyage peuvent s'utiliser pour le lavage d'articles et le nettoyage de surfaces dures, le rinçage, l'assainissement, la déodorisation et autres, et sont fabriqués par le procédé de l'invention. De préférence, les ingrédients sont traités dans une extrudeuse, et le mélange est extrudé directement dans un moule ou autre système de conditionnement afin de distribuer le détergent. La consistance de la composition va de celle d'un bloc solide fusionné à celle d'un article maléable.
Patent CA-2171598-C (CA)
Inventor: SCHIEDEGGER CHARLES E
IPC: E04F13/00
Filed: 1996-03-12
Granted: 2005-09-13
Abstract: A molding assembly having a hanger member fixedly securable to an inner or outer wall of a building and a decorative molding insert member releasably engageable with the hanger member. The molding insert member is supported at a lower edge portion by a lower J-channel of the hanger member. An upper L-shaped portion of the insert member is supported by a depending lip portion of the hanger member which forms a second channel such that no external fastening elements are required to secure the molding insert member to the hanger member. The insert member can be quickly and easily releasably engaged within the J-channel and the second channel without the need for special tools. In an alternative preferred embodiment the insert member includes a lip portion which is adapted to slidably engage an under surface of an adjacently positioned insert member to provide an even more continuous appearance for adjacently positioned insert members. An end cover is also disclosed for covering an exposed end portion of the molding assembly when the end portion is secured to a section of a wall where one or more ends of the molding assembly do not abut another wall portion extending perpendicularly from the molding assembly. In an alternative embodiment of the end cover, the end cover includes a shoulder portion formed to protrude from a lower lip portion which engages a notch formed in a lip of a lower J-channel of a hanger member of the present invention. In this manner, once the end cover is releasably secured to the hanger member, the end cover cannot be slidably urged-off of the hanger member such as by thermal expansion of one or more sections of molding insert members.
Patent CA-2175698-C (CA)
Inventor: FUKAI TOSHIHARU
IPC: C02F1/52
Filed: 1994-10-14
Granted: 2001-07-24
Abstract: Method and apparatus for changing water used in daily life such as city or well water into purified and activated water having various functions such as detergency, bactericidal and antifungal actions, surface activity, cooling action, and in vivo activating function. Soft water generators 10, 12 each having an ion exchange resin 32 therein, an ion generator having a tourmaline mixture 46 having tourmaline and aluminum oxide, and a rock accommodating container containing a rock 54 having minus ions are connected in series.  Water is passed through the ion exchange resin, the tourmaline mixture 46 and the rock 54 having minus electrons in this order.
Patent CA-2183745-C (CA)
Title: Compositions detergentes
Inventor: FOLEY PETER ROBERT
IPC: C11D1/22
Filed: 1995-03-09
Granted: 2000-04-11
Abstract: Est décrite une composition détergente comprenant des constituants détergents classiques, caractérisée en ce qu'elle contient une lactase. Cette dernière est de préférence incorporée dans les compositions à un niveau compris entre 0,0001 % et 2 % d'enzyme active en poids de la composition.
Patent CA-2186544-C (CA)
Inventor: PLISKA LEE M
IPC: A47C7/02
Filed: 1996-09-26
Granted: 2000-08-15
Abstract: The present invention relates to a tailbone cushion to eliminate discomfort of patients afflicted with hemorrhoids, fissure, damaged coccyges (tailbone) or the like associated with sitting on hard surfaces. The tail bone cushion of the present invention consists of a cushion section having front, rear and side edges and generally flat top and bottom surfaces. The cushion section has a cutout centrally disposed in the rear edge providing said cushion section with a U-shaped configuration. The cutout is sized and located to eliminate contact between the p[patient's tailbone and either the cushion or the surface underneath the cushion. The cushion section is preferably tapered in thickness and firmness from rear to front. The cushion section is also preferably formed from a casing filled with a material that has low compression under a patient's body weight yet soft enough to permit sitting for extended periods with minimal discomfort. The tail bone cushion is optionally provided with a back support. The back support has top, bottom and side edges and generally flat front and rear surfaces. The back support is preferably detachably connected to the cushion section. by a hinged connection between the rear edge of the cushion section and the bottom edge of the back support to permit the tailbone cushion to be folded flat for storage or transport and opened for use. Means may be provided with said back support to provide a lumbar support preferably a hot pack. The means can include a sleeve or pouch located on the front surface of said back support.