baber/WOPTO huggingface dataset:
Patent CA-2041696-C (CA)
Title: Switched mode power supply having a discharge circuit for an auxiliary power source
Inventor: LEE INTAE
IPC: H02M7/06
Filed: 1991-05-02
Granted: 1995-11-28
Abstract: An SMPS including a primary rectifying circuit connected to an AC power supply,  a transformer connected  to the primary rectifying circuit, a secondary rectifying circuit connected to the secondary side of the transformer,  a voltage fluctuation sensing  section  connected  to  the  output  of  the  secondary rectifying circuit for sensing the fluctuation of the output voltage, a switching signal generator for generating switching signals  according  to the  output  signals  of  the  voltage fluctuation sensing section,  a switching transistor inserted between  the  transformer  and  ground  for  executing  switching operations repeatedly according to the switching  signals,  a protective circuit for detecting the state of the output voltage and stopping the operation of the switching signal generator in abnormal state, and an auxiliary power circuit for supplying the operating  power  to  the  switching  signal  generator and  the protective circuit.      The SMPS further comprises an AC power cut-off detecting circuit for detecting whether the AC power is interrupted or not and a discharge circuit for discharging the residual electric charge of the auxiliary power circuit according to the output of the detecting circuit.
Patent CA-2047347-C (CA)
Title: Thioalkylthio cephalosporins derivatives
Inventor: KUBOTA TADATOSHI
IPC: C07D501/00
Filed: 1991-07-18
Granted: 2002-03-19
Abstract: The present invention is directed to a thioalkylthio cephalosporin antibiotic compound of formula I:   (see formula I) wherein Acyl is C1 - C12 acyl; Het is an optionally substituted monocyclic heteroaromatic group containing one or more hetero atoms; R1 is a single bond or C1 - C4 alkylene; R2 is a straight or branched C1 - C4 alkylene; X is a sulfur atom or sulfoxide group; and Y is a hydrogen atom or methoxy group, or a pharmaceutically acceptable salt or an amino-, carboxy- and/or hydroxy-protected derivative thereof. The invention is further directed to a formulation containing the compound of formula I and a method far treating bacterial infections.
Patent CA-2048728-C (CA)
Title: Double dome combustor
Inventor: GLEVICKY MARK MICHAEL
IPC: F23R3/04
Filed: 1991-08-08
Granted: 2002-11-26
Abstract: A double dome combustor for a gas turbine engine includes first and second domes joined to outer and inner liners. The first and second domes are joined together by two load transmitting structural paths for providing increased rigidity of the first and second domes for accommodating pressure loading from compressed airflow. In one exemplary embodiment, a dome cowl having first and second cowls is used to additionally join together the first and second domes.
Patent CA-2049976-C (CA)
Inventor: WOODS WILLIAM G
IPC: D06L3/02
Filed: 1991-01-17
Granted: 1997-01-14
Abstract: Stable, concentrated aqueous peroxygen solutions are provided in which the stabilizing agent is a water-soluble carbazole sulfonate, diphenylamine sulfonate or N-phenylaminonaphthalene sulfonate. Preferred compositions contain sodium perborate, chelating agent and a solubilizing agent.
Patent CA-2054738-C (CA)
Title: 15-deoxyprostaglandin derivatives
Inventor: KISHI MORIO
IPC: C07C405/00
Filed: 1991-03-07
Granted: 2001-08-28
Abstract: The present invention relates to a 15-deoxyprostaglandin derivative of the formula (V):      in which is a 5-membered ring which is selected from the group consisting of   and   R1 is hydrogen or C1-C5 alkyl; R4 is C5-C11 alkyl, C5-C11 alkenyl or C5-C11 alkadienyl; or pharmaceutically acceptable salts thereof, with the proviso that compounds of the following formulae are excluded:      wherein   is   or   or   and wherein R4 is C5-C11 alkyl or pharmaceutically acceptable salts thereof. The invention also relates to a pharmaceutical formulation comprising a 15-deoxyprostaglandin derivative as an active ingredient.      The derivatives and formulations of the present invention are useful as intraocular pressure reducing agents.
Patent CA-2055516-C (CA)
Inventor: BENNETT REGINALD S
IPC: B64F1/18
Filed: 1991-11-14
Granted: 2000-04-11
Abstract: A truncated pyramidal pylon, has retro-reflectant side walls each sloping at 8° - 10° to the vertical for helicopters and 3° - 6° to the vertical for fixed wing aircraft. The pylon is downwardly open, and designed for nesting.
Patent CA-2058507-C (CA)
Title: Succinimide containing polymers and lattices prepared from same
Inventor: SUTTON RICHARD CALVIN
IPC: C08F220/36
Filed: 1991-12-24
Granted: 1997-03-11
Abstract: Water-insoluble, noncrosslinking, nonporous copolymers are provided which have recurring units derived from:     (a)  from 80 to about 99.9 mole percent of one or more ethylenically unsaturated polymerizable oleophilic monomers which provide hydrophobicity to said copolymer, provided that none of said monomers are crosslinking monomers, (b)  from about 0.1 to 20 mole percent of one or more ethylenically unsaturated polymerizable monomers having a succinimidoxycarbonyl group, and (c)  from 0 to about 10 mole percent of one or more ionic or polar hydrophilic ethylenically unsaturated polymerizable monomers. These copolymers have a variety of uses, including diagnostic assays.
Patent CA-2058940-C (CA)
Inventor: LOUGHREY HELEN
IPC: A61K47/42
Filed: 1990-06-22
Granted: 2000-05-09
Abstract: L'invention concerne un procédé permettant de synthétiser un lipide réactif pur comprenant, par exemple, N-¢4-(p-maléimidophényle)-butyryle!phosphatidyléthanolamine (MPB-PE) ainsi que des compositions apparentées. Les compositions de l'invention sont utiles en tant qu'agents d'accouplement, et peuvent être incorporées dans des liposomes et ensuite accouplées à des protéines, des cofacteurs ainsi qu'un certain nombre d'autres molécules. Un procédé d'accouplement préféré est également décrit ainsi que des conjugués de protéines. L'invention concerne également un procédé général de production de conjugué dimensionné de protéines-liposomes présentant des temps de circulation sanguine améliorés. L'invention concerne par ailleurs des compositions de conjugués dimensionnés de protéines-liposomes, produites selon le procédé de l'invention. Les conjugués de protéines-liposomes de l'invention ont une taille située dans une plage allant d'environ 75nm à environ 200nm. Les liposomes de l'invention peuvent avoir un potentiel trans-membrane dans leurs membranes, et peuvent être déshydratés. De plus, la composition peut contenir des agents bioactifs ionisables tels que des agents antinéoplastiques, et peut être utilisée dans des analyses de diagnostics.
Patent CA-2059339-C (CA)
Inventor: PARSONS KEVIN L
IPC: F41B15/02
Filed: 1992-01-14
Granted: 1997-09-30
Abstract: An expandable baton is constructed of heat treatable alloy steel and is formed according to a method which provides both ease of workability of the component materials and strength for the resultant baton.  The disclosed method comprises the steps of first forming the sections from heat treatable alloy steel, then annealing the baton components to soften them, then forming the components into the desired shapes, and finally hardening the components. The resulting baton provides the strength and reliability required in such a device.
Patent CA-2071869-C (CA)
Title: Carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters
Inventor: CAHILL STEPHEN VINCENT
IPC: H04B1/10
Filed: 1991-09-24
Granted: 1998-09-15
Abstract: A communications receiver (103) comprising a carrier recovery apparatus having an adjustable response time loop filter (123) responsive to carrier signal parameters determined by a signal processor (141) is disclosed. Signal reception under fading conditions is improved by detecting the received signal parameters in an energy level determinator (207), a rate of change of energy level determinator (209) and a look-up table value (221) corresponding to a position of TDMA time clock (219).
Patent CA-2073035-C (CA)
Title: Single stage demodulator with reference signal phase dither
Inventor: WINSTON CHARLES R JR
IPC: G01C19/72
Filed: 1991-06-24
Granted: 2001-04-03
Abstract: A fiber optic rotation sensor includes a fiber optic coil with light beams counterpropagating therein where the beams are phase modulated with a squarewave carrier at the coil eigenfrequency. The beams recombine at the coil output with a resultant optical intensity which is a measure of the change in sensor rotation rate.  The recombined signal also contains an error component due to squarewave carrier imperfections which cause high frequency spikes in the modulated rate signal resulting in rotational rate bias errors. The rotational rate bias errors are reduced by demodulating the modulated rate signal with a demodulator reference signal uniformly phase dithered about the carrier signal.
Patent CA-2075691-C (CA)
Inventor: SVETLIK KENNETH N
IPC: B23B45/14
Filed: 1992-08-10
Granted: 1996-01-30
Abstract: The housing of the drill press is provided with a bit storage compartment.  A removable cover plate for the compartment has tabs on its inner surface for detachably holding a drill bit case of the type having two shell sections hingedly connected together with each of the shell sections provided with a rack containing arcuate recesses of progressively increasing size for detachably receiving drill bits of varying diameters.  The tabs on the inside of the cover plate are adopted to hold the casing shell sections in their open position thereby to make all of the drill bits accessible upon opening of the cover plate or upon removal of the same from the housing of the drill press.  A secondary drill bit holder is detachably and pivotally mounted in the storage compartment for swinging movement back and forth between an access position and a storage position.
Patent CA-2077281-C (CA)
Title: Valve controlled in dependence on differential pressure
Inventor: ANDERSEN MOGENS
IPC: F16K31/165
Filed: 1992-09-01
Granted: 1998-05-19
Abstract: A valve controlled in dependence on differential pressure comprises a valve housing (4), a diaphragm housing (16)  fastened thereto, and connected therewith a setting device (3) with a set-point spring (50).  Fastened in the centre of the diaphragm (23) there is an insert (26) against which an end contact face (28) of the valve rod (7) lies.  The insert (26) is connected by way of an articulation (37)  to a pin (36)  which projects into the setting device (3) and is there loaded by the set-point spring (50).  In that manner, the valve movement is prevented from being obstructed by the influence of transverse forces.
Patent CA-2085426-C (CA)
Title: Synchronized resetting of coding devices
Inventor: ROELOFSEN GERRIT
IPC: H04J13/00
Filed: 1992-12-15
Granted: 1998-04-21
Abstract: In a system for de-/encoding data using (de)coding devices at either end of a transmission channel, the data sometimes comprise additional synchronisation information which is used to reduce the effect of faults in the transmission channel. If this synchronisation information is not already present, it is impossible in certain cases to add such information. The invention provides a system which, regardless of the presence of additional synchronisation information, is able to reduce the effect of faults. For this purpose each (de)coding device is provided with means for comparing sequences of encoded data with at least one predetermined code word and for setting the associated coding device to a reset state in the event of equality. Because the predetermined code word repeats statistically in the encoded data, a fault adversely affects the decoding for not more than one time interval.
Patent CA-2086256-C (CA)
Title: Shape sorting
Inventor: COOK NIGEL ROGER
IPC: B07C5/10
Filed: 1991-06-25
Granted: 2001-12-04
Abstract: In order to provide an accurate sort into may different classes, objects are passed through a viewing zone and viewed at the same instant by a number of viewers. Signals from the viewers are processed to provide signals representative of the maximum, minimum and mean of the blockiness and symmetry of the object, and the maximum and mean of the convex hull deviance of the object. The signals, together with an edge-breakthrough count are subjected to a linear transformation to provide a normalised shape parameter which is then assigned a value of 0 to 15, for each class being sorted, on the basis of the expected occurrence of the value of the parameter in that class. Each pair of secondary shape parameters so determined is used to derive a decision value from the table specific for that pair of secondary shape parameters. The shape class of the object is ascertained on the basis of a majority vote for all the shape decision values. The tables are "learnt" by the machine by feeding a statistically significant number of samples representative of a number of shape classes through the machine.
Patent CA-2086476-C (CA)
Title: Differential pressure sensor utilizing opto-reflective sensor
Inventor: KEMP STEPHEN J
IPC: G01L9/00
Filed: 1992-12-30
Granted: 2004-02-24
Abstract: A differential pressure sensor utilizing an opto-reflective sensor comprising a diaphragm with a top and a bottom, the diaphragm having an optical reflector mounted upon it. The diaphragm is mounted in a housing, wherein the housing has a first inlet port and a second inlet port, the first inlet port providing a first pressure to the top of the diaphragm and the second inlet port providing a second pressure to the bottom of the diaphragm.      An opto-reflective sensor is mounted in the housing, wherein the opto-reflective sensor provides an optical signal to the optical reflector. The optical reflector reflects the signal back to the opto-reflective sensor, wherein the differential pressure sensor calculates the distance of the optical reflector from the opto-reflective sensor in relation to the relative intensity of the reflected optical signal. The differential pressure sensor then calculates the differential pressure between the first pressure and the second pressure based on the relative intensity of the reflected optical signal.
Patent CA-2086919-C (CA)
Title: Process for the production of unsaturated 17.alpha.-cyanomethyl -17.beta. hydroxy steroids
Inventor: MUELLER GERD
IPC: C07J1/00
Filed: 1991-07-05
Granted: 1998-02-24
Abstract: The invention relates to an unsaturated 15-dehydro-17.alpha.-cyanomethyl-17.beta.-hydroxy steroid of the formula I          (I) wherein R1 is methyl or ethyl; R2 is selected from the group consisting of hydrogen and methyl; R3 is selected from the group consisting of hydrogen, hydroxy, acetoxy and alkoxy having 1 to 6 carbon atoms; R4 is hydrogen and R5 is selected from the group consisting of hydroxy, acetoxy and alkoxy having 1 to 6 carbon atoms, or R4 and R5 are both methoxy or both ethoxy, or R4 and R5, together, represent a keto group or a ketal group selected from the group consisting of -O-CH2-CH2-O-; -O-CH2-C(CH3)2-CH2-O- and -OCH(CH3)-CH2-CH(CH3)-O-; wherein said steroids of formula (I) also have at least one other double bond between the 1 and 2 positions, the 2 and 3 positions, the 3 and 4 positions, the 4 and 5 positions, the 5 and 6 positions, the 5 and 10 positions, the 9 and 10 positions and the 9 and 11 positions, said 1,2,3,4,5,6,9,10 and 11 positions being shown in the formula I above; and with the proviso that R2 cannot be methyl, when said at least one other double bond is between the 5 and 10 positions or between the 9 and 10 positions.  Compounds of formula I are useful in the treatment of endometriosis and in fertility control.
Patent CA-2090011-C (CA)
Title: Anti-inflammatory factor, method of isolation, and use
Inventor: BECK LEE R
IPC: A61K35/74
Filed: 1991-06-12
Granted: 2003-12-30
Abstract: The invention relates to a substantially pure anti-inflammatory factor isolated from milk collected from a milk producing animal, to the purification, identification, and characterization of said factor, and to a method for treating inflammation in an an-imal which comprises administering to the animal an anti-inflammatory effective amount of the anti-inflammatory factor. In a preferred embodiment, the factor is isolated from milk produced by a milk producing animal maintained in a hyperimmunized state.
Patent CA-2098626-C (CA)
Title: Apparatus for discharge surface liquid
Inventor: YAMAMOTO HIDEO
IPC: B01D17/032
Filed: 1993-06-17
Granted: 2002-11-26
Abstract: A base fixed to a Liquid-containing tank and a float disposed above the base are liquid-tightly secured to lower and upper ends, respectively, of a flexible member comprising a bellows cylinder. The base, the float and the flexible member define a liquid reservoir.      The float rises when there is a large quantity of liquid in the reservoir and falls when there is a small quantity of liquid in the reservoir, so that a damming plate provided on the float is moved above and below the surface of the liquid in the tank. When the damming plate is moved below the liquid surface, the liquid on the surface flows into the reservoir through a liquid inlet formed in the float, and the liquid that collects in the reservoir is discharged to the exterior of the tank by a liquid discharge pipe. As the float rises, the damming plate is lifted above the surface of the liquid in the tank, thereby cutting off the flow of surface liquid into the reservoir. This operation is performed repeatedly to remove the surface liquid from the tank.
Patent CA-2099953-C (CA)
Inventor: ODER ENGIN
IPC: G05D1/00
Filed: 1993-07-06
Granted: 2006-11-14
Abstract: Ce procédé utilise un processeur associé à un terminal écran/touches de commande et de saisie, et à des mémoires contenant les informations utiles à la conduite d'un vol, ce processeur étant connecté aux équipements de l'aérodyne. Il comprend la mémorisation des informations dans une base de données et la fourniture de premiers moyens d'exploitation de ces informations, l'acquisition en temps réel par le processeur d'un événement relatif à la situation actuelle de l'aérodyne, et l'analyse de la situation nouvelle engendrée par l'arrivée de cet événement; la présélection des informations de la base de données les mieux adaptées à la nouvelle situation et leur classement par ordre de pertinence, la fourniture de seconds moyens d'exploitation des informations présélectionnées, la sélection et l'exploitation par l'opérateur d'un desdits moyens d'exploitation. L'invention s'applique notamment à l'aviation civile et commerciale.
Patent CA-2103573-C (CA)
Inventor: MICHIELS FRANK
IPC: A01H5/00
Filed: 1992-02-06
Granted: 2005-04-26
Abstract: Rice anther-specific promoters which are of particular utility in the production of transgenic male-sterile monocots and plants for restoring their fertility.
Patent CA-2106441-C (CA)
Inventor: TATEYAMA SEIJI
IPC: G06F19/00
Filed: 1993-09-17
Granted: 2003-07-15
Abstract: Image data are defined by color vectors each composed of vector factors. Each vector factor specifies the brightness and color difference of a dot. The image data are transmitted with a normal timing when the vector factors correspond to dots of the image one for one, and are transmitted with another timing in another case to scroll the image horizontally.
Patent CA-2114063-C (CA)
Title: Salt taste enhancers
Inventor: LEE ELDON CHEN-HSIUNG
IPC: A23L27/00
Filed: 1994-01-24
Granted: 2005-09-13
Abstract: A composition enhanced in sodium chloride taste which comprises a food or beverage containing a less than normal amount of sodium chloride, and a sodium chloride taste potentiating amount of an encapsulated ammonium salt especially wherein the ammonium salt is obtained from ammonia formed during protein hydrolysis.
Patent CA-2114425-C (CA)
Title: Cable reeling system
Inventor: DADE MALCOLM JOHN
IPC: B65H75/34
Filed: 1992-07-16
Granted: 2000-06-27
Abstract: A reel system for use in conjunction with a mobile installation comprising an AC motor which drives a reel via reduction means, the reel system further comprising sensing means operable to provide a signal representative of the position of the motor shaft, and a controller, which receives said signal, and is operable to vary continually the stator current of the motor in response to the operating conditions pertaining at a given instant to provide a required torque at the motor shaft.
Patent CA-2121191-C (CA)
Title: Male electrical plug assembly with increased electrical creepage distance between contacts
Inventor: BOTELER WILLIAM C
IPC: H01R13/502
Filed: 1994-04-13
Granted: 2004-10-05
Abstract: A male electrical plug assembly includes an elongated body, a mounting flange, a terminal holder and a terminal retainer, all being made of an insulating material. The elongated body has a plurality of locating elements defined on an exterior surface on one end portion thereof and an annular shoulder 'defined thereon adjacent to the external locating elements. The mounting flange is adapted to fit over the elongated body and abut against the annular shoulder and has an internal annular wall with a plurality of recesses defined therein being alignable with the external locating elements of the elongated body. The terminal holder is adapted to fit over the elongated body in abutting relation against the mounting flange and has a plurality of cavities and a plurality of slots aligned with the cavities. The cavities and slots axe alignable with the internal recesses of the mounting flange and the external locating elements of the elongated body. The terminal retainer is attachable to an opposite end of the elongated body so as to clamp the mounting flange and terminal holder therebetween. The assembly also includes a plurality of electrical terminals disposed in the cavities of the terminal holder and a plurality of elongated electrical contact elements mounted to the external locating elements on the one end portion of the elongated body and extendable therefrom through the internal recesses of the mounting flange and the cavities and slots of the terminal holder and into the electrical terminals disposed in the cavities.
Patent CA-2123410-C (CA)
Title: Heating to detoxify solid earthen material having contaminants
Inventor: HEATH WILLIAM O
IPC: H05B3/00
Filed: 1992-11-12
Granted: 1999-08-24
Abstract: The present invention includes a method of treating solid earthen material having volatile, semi-volatile, and non-volatile contaminants. Six electrodes are inserted into a region of earthen material to be treated in a substantially equilateral hexagonal arrangement. Six phases of voltages are applied to corresponding electrodes.  The voltages are adjusted within a first range of voltages to create multiple current paths between pairs of the electrodes. The current paths are evenly distributed throughout the region defined by the electrodes and therefore uniformly heat the region. The region of earthen material is heated to a temperature sufficient to substantially remove volatile and semi-volatile contaminants by promoting microbial action. This temperature is less than a melting temperature of the earthen material.