baber/WOPTO huggingface dataset:
Patent CA-2053873-A1 (CA)
Title: Quinolone derivatives
Inventor: GRISTWOOD ROBERT W
IPC: A61P9/00
Filed: 1991-02-15
Abstract: The invention provides 4(1H)quinolone derivatives of formula (I), wherein R represents an alkyl group containing up to 6 carbon atoms, R1 represents an alkyl or alkenyl group containing up to 6 carbon atoms, R2 and R3 singly each represents hydrogen, halogen, methoxy or a trifluoromethyl group, with the proviso that at least one of R2 and R3 is hydrogen, and pharmaceutically acceptable salts thereof and processes for their production. The compounds are useful for the treatment of cardiovascular and respiratory disorders.
Patent CA-2054349-A1 (CA)
Title: Seat cushion
IPC: A61G5/10
Filed: 1991-10-30
Abstract: A seat cushion is shown, of the type commonly used in conjunction with wheelchairs, but not necessarily limited to wheelchair seating.  The seat cushion has a flat rigid base on which a shaped foam section with sides which angle outwardly and upwardly is supported.   The foam section has a recessed area defined therein,  to accommodate either a visco-elastic foam insert, or preferably a fluid-filled pad which is stuffed or accordion-folded into the recess.  A suitable cover of two-way stretch moisture-proof fabric is provided.   The fluid-filled pad is sealed peripherally along at least the front edge and both sides.  The rear edge may also be permanently sealed, or may be provided with a variable position resealable closure extending across the rear end.  At least one seam runs from the front edge to near the rear edge, to divide the pad into at least two and preferably three compartments.  The seams do not run all the way to the rear, however, so that fluid may pass from compartment to compartment around the rear end of the seams, unless the rear is sealed across the seams.
Patent CA-2054365-A1 (CA)
Inventor: BABBITT RICHARD W
IPC: H01P1/218
Filed: 1991-10-28
Abstract: A tunable bandpass filter comprises a flat ferrite body having first and second spaced, coextensive microstrip conductive lines on its upper surface.  A winding encircles the ferrite and conductive lines so that a variable d-c current in the winding varies the magnetic permeability of the ferrite and thus the center frequency of the filter.
Patent CA-2054443-A1 (CA)
Inventor: YAMANE KAZUO
IPC: H04B10/032
Filed: 1991-10-29
Abstract: A system for optical communication between first and second optical terminal stations, containing a plurality of working optical transmission lines each for connecting between the first and second optical terminal stations, a protection optical transmission line. Each of the first and second optical terminal stations contains a plurality of working pieces of optical terminal equipment, connected to the respective working optical transmission lines, a protection piece of optical terminal equipment connected to the protection optical transmission line, and a plurality of bidirectional optical signal paths, provided corresponding to the respective working pieces of optical terminal equipment, and each operative to connect the corresponding working piece of optical terminal equipment to the protection piece of optical terminal equipment. Each of the plurality of working pieces of optical terminal equipment comprises, first and second bidirectional optical ports one of the working optical transmission lines corresponding to the working piece of optical terminal equipment, and to one of the bidirectional optical signal paths corresponding to the working piece of optical terminal equipment. The protection piece of optical terminal equipment comprises third and fourth bidirectional optical ports respectively connected to the protection optical transmission line and to at least one of the plurality of bidirectional optical signal paths.
Patent CA-2058137-A1 (CA)
Inventor: SAWADA KAZUO
IPC: H01B7/29
Filed: 1991-12-19
Abstract: An  inorganic  insulating  member  comprises  a conductor containing Ni or Ni alloy at least in its outer surface, an oxide layer of Ni or Ni alloy formed through oxidation treatment of the outer surface of the conductor, and an insulating inorganic compound layer which is formed on the oxide layer of Ni or Ni alloy.   The insulating inorganic compound is separated only with difficulty and the inorganic insulating member is improved in heat resistance and insulability.
Patent CA-2058797-A1 (CA)
Title: Amino acid derivatives
Inventor: BROADHURST MICHAEL J
IPC: A61K31/135
Filed: 1992-01-06
Abstract: Abtract The invention provides compounds of the formula         (I) wherein A represents the group   or                (b) (a) R1 represents hydrogen, amino, protected anino, acylamino or lower alkyl optionally substituted by aryl, hydroxy, protected hydroxy, amino, protected amino, acylamino, maleimido, succinimido, naphthalimido, 2,3-dihydro-1,3-dioxo-1H-benz[d,e]isoquinol-2-yl, carboxy, protected carboxy, carbamoyl, mono(lower alkyl)carbamoyl, di(lower alkyl)carbamoyl, di(lower alkyl)amino, carboxy-lower alkanoylamino, pyrrolidino or morpholino; R2 represents hydrogen or lower alkyl optionally substituted by aryl, amino, protected amino, di(lower alkyl)- amino, guanidino, carboxyl, protected carboxyl, carbamoyl, mono(lower alkyl) carbamoyl, di(lower alkyl)carbamoyl, di(lower alkoxy)phosphinyl, dihydroxyphosphinyl, pyrrolidino, piperidino or morpholino; R3 represents hydrogen or lower alkyl optionally substituted by hydroxy, protected hydroxy, amino or protected amino; R4 represents hydrogen, hydroxy, lower alkoxy or benzyloxy; and R5 represents hydrogen or halogen and their pharmaceutically acceptable salts. These compounds are useful for the control or prevention of degenerative joint diseases or for the treatment of invasive tumours, atherosclerosis or multiple sclerosis. They call be manufactured according to known methods.
Patent CA-2059290-A1 (CA)
Title: Apparatus for making or dispensing drinks
Inventor: SCOTT ALISTAIR
IPC: B67D1/00
Filed: 1990-06-19
Abstract: Apparatus for producing carbonation flavoured drinks has a number of features. Water introduced to a water break from the mains supply holds a value open whilst the carbonation chamber is being filled. A concentrate supply includes a metering chamber into which concentrate flows under gravity and from which concentrate is discharged by gas pressure. The concentrate containers include means to indicate the type of concentrate therein and the degree of carbonation of water is controlled by detecting this indication.  Change-over from one gas supply bottle to another is achieved utilising the pressure of the gas in the bottle to displace an element which effects the change-over. Concentrate in supply containers thereof is cooled by coolant used from cooling the carbonation chamber.
Patent CA-2059639-A1 (CA)
Inventor: KOKAGUCHI AKIRA
IPC: B60R21/16
Filed: 1990-05-30
Abstract: ABSTRACT OF THE DISCLOSURE    In an air bag unit provided with an air bag (1) for receiving an occupant by inflating when the vehicle is collided, said air bag (1) has at least one side coated with rubber or thermoplastic resin and is fur-nished with two base cloths (2, 3) cut in the pre-determined shape, and these base cloths (2, 3) are overlapped with each other so that the surfaces coated with said rubber or said thermoplastic resin face inward.  A reinforcement cloth (9) is placed between outer peripheral edges of these base cloths (2, 3), and these two base cloths (2, 3) and the reinforcement cloth (9) are thermally welded together.  Because there is no sewn portion by sewing threads as in the case of the sewing method, the bonded portion is not thick.          As the result, the package volume of the air bag can be minimized, and it is possible to design the air bag unit in lightweight and compact form.    Because the bonded portion of two base cloths can be reinforced by the reinforcement cloth, sufficient strength can be maintained, and two base cloths are not easily detached when inflating gas is rapidly introduced into them.
Patent CA-2062785-A1 (CA)
Inventor: O'NEIL-BELL CHRISTOPHER
IPC: C04B37/02
Filed: 1990-06-28
Abstract: An article includes a ceramic or vitreous member (5) and a composite member (9) bonded together. The composite member is formed of a substrate member and a deformable metal layer which is mechanically fixed to the substrate member. The substrate member is formed of a material which is harder than the deformable metal. The ceramic or vitreous member and the deformable metal layer of the composite member are bonded together by a solid phase bond formed by ultrasonic welding.
Patent CA-2063122-A1 (CA)
Title: Imidazole derivatives bearing acidic functional groups as angiotensin ii antagonists
Inventor: CHAKRAVARTY PRASUN K
IPC: C07D233/90
Filed: 1992-03-16
Abstract: TITLE OF THE INVENTION IMIDAZOLE DERIVATIVES BEARING ACIDIC FUNCTIONAL GROUPS AS ANGIOTENSIN II ANTAGONISTS.     ABSTRACT OF THE DISCLOSURE         There are disclosed substituted imidazole derivatives of Formula I bearing acidic functional groups which are useful as angiotensin II antagonists.                             I
Patent CA-2065868-A1 (CA)
Inventor: EARLESON WALTER E
IPC: B60L7/12
Filed: 1991-08-09
Abstract: An apparatus ( 10) for controlling dynamic braking in a vehicle having at least one drive motor (26) of the type having an armature and a field (27). The motor (26) is adapted to function as an alternator during dynamic braking for dissipating power through a resistor grid (38). The vehicle includes a field current controller (24) for regulating the level of dynamic braking by controlling the current level through the motor field (27). A brake level selector (76) is provided for producing a desired braking level signal. A field current sensor (64) senses the current level in the motor field (27) and produces an actual field current signal. A grid current sensor (68) senses the level of current flowing through the resistor grid and produces an actual grid current signal. A controller (10) receives the desired brake level signal, the actual field current signal, and the actual grid current signal. The controller (10) produces a first desired field current signal and a desired grid current signal in response to the desired brake level signal. The controller (10) further produces a second desired field current signal in response to the actual field current, actual grid current, and desired grid current signals, compares the first and second desired current field signals and produces a final desired field current signal responsive to the compared signals. The field current through the motor (26) is controlled in response to the final desired field current signal.
Patent CA-2068065-A1 (CA)
Inventor: KLEINBERG WILLIAM T
IPC: F25J3/04
Filed: 1992-05-06
Abstract: The present invention is an improvement to a process for the separation of air into its constituent components in a cryogenic distillation column system having a high pressure column and a low pressure column which are thermally integrated with each other.  The improvement for producing both nitrogen and oxygen products at a medium pressure comprises the following steps: (a) operating the low pressure column at a pressure of between 10 to 75 psig and the high pressure column at a pressure which is about 60 to 160 psi higher than the low pressure column; (b) removing and subsequently warming at least a portion of the lower pressure nitrogen overhead from the top of the low pressure column and recovering the warmed, lower pressure nitrogen overhead portion as medium pressure gaseous nitrogen product; and (c) recovering medium pressure gaseous oxygen product from the low pressure column.  There are two alternative ways to recover the medium pressure oxygen product of step (c).  In the first, a portion of the liquid oxygen bottoms can be removed from the low pressure column and boosted in pressure, and then subsequently vaporized.  This vaporized, boosted pressure, liquid oxygen is recovered as medium pressure gaseous oxygen product.  In the second, a portion of the vaporized liquid oxygen bottoms is removed from the low pressure column and warmed.  This warmed, vaporized liquid oxygen bottoms would be recovered as the medium pressure gaseous oxygen product.
Patent CA-2073742-A1 (CA)
Title: Hand vacuum cleaning device
Inventor: ARNOLD HANS-PETER
IPC: A47L5/24
Filed: 1992-07-13
Abstract: Abstract The invention relates a motor-driven hand vacuum cleaning device comprising a filter (F) and an exchange-able suction attachment (S). To design a hand vacuum device in a better advantageous manner regarding manufacture and use, the invention proposes, that the filter (F) is disposed in the suction attachment (S).             (figure 6)
Patent CA-2074437-A1 (CA)
Inventor: FUCHS HARALD
IPC: H01J37/317
Filed: 1992-07-22
Abstract: Abstract of the Disclosure: In a process for the perfor-mance of location-selective catalytic reactions with or on the surfaces of solids in the nanometer or subnano-meter  range,  the  surface  in  question  is  chemically modified by means of a surface-sensitive scanning probe containing the catalytic material. This process is used for information storage.
Patent CA-2075512-A1 (CA)
Inventor: LERMITE CHRISTOPHE
IPC: B01J19/32
Filed: 1992-08-07
Abstract: -On décrit un procédé de séparation d'un mélange de gaz qui comprend: a) une étape d'absorption dans une zone d'absorption C1 d'une partie G2 d'un mélange gazeux G1 par un solvant L1; b) une détente du solvant L1 entrainant la vaporisation partielle des gaz absorbés G2 et un refroidissement du solvant L1; c) une étape de désorption de la fraction gazeuse G2 dans un dispositif de désorption D1 comprenant une zone de rebouillage B1 et une zone d'échange de chaleur interne Z1, dans laquelle le solvant L1 provenant de l'étape (b) circule en contact globalement à contre-courant avec la phase vapeur, en échangeant simultanément de la chaleur globalement à contre-courant avec la phase solvant provenant de la zone de rebouillage B1; d) renvoi du solvant régénéré sortant de la zone de rebouillage B1 dans la zone d'échange de chaleur Z1 et l'évacuation dudit solvant régénéré en tête de ladite zone d'échange de chaleur interne; et e) le recyclage dudit solvant régénéré vers la zone d'absorption C1.
Patent CA-2076345-A1 (CA)
Inventor: NOBLE MARK D
IPC: C12N5/00
Filed: 1991-02-20
Abstract: The provision of cell lines from virtually any cell type of the animal body is greatly facilitated by transgenic non-human eukaryotic animals of the invention in which at least some cells have (i) a differentiation inhibiting sequence chromosomally incorporated under the control of a non-constitutive promotor and/or (ii) a differentiation inhibiting sequence which is itself conditionally active. Said genes are chromosomally incorporated under the control of a promotor such that expression of said sequence is normally held below an effective level, thus allowing normal cell development. However, cells taken from said animal may be prevented from completing differentiation to a non-dividing state in tissue culture by activating expression of said sequence.
Patent CA-2078321-A1 (CA)
Inventor: PERPALL ROBERT C
IPC: H04B7/15
Filed: 1992-09-15
Abstract: A multiplexing system combines a plurality of electromagnetic signals to propagate along a common path, preferably a square waveguide which can be connected to an antenna feed horn of square cross section which can support both circularly and linearly polarized electromagnetic waves. The system is operative with a plurality of sets o signal channels including a firstset of A-channel signals and a second set of B-channel signals. A circular polarizer connects with a first end of the waveguide. All of the A-channel signals are fed into an input port of the polarizer. The B-channel signals are coupled into the waveguide by a plurality of couplers located at positions arranged serially along the waveguide, individual one of the couplers operating at different ones of the B-channel frequencies for selectively coupling respective ones of said B-channel signals into the waveguide to propagate toward the second end of the waveguide. Each of the couplers has a rectangular waveguide and plural cylindrical cavity filters interconnecting a broad and a narrow wall of the rectangular waveguide with two contiguous walls of the square waveguide. Slotted apertures act to couple directionally the B-channel signal into the square waveguide to propagate towards the second end of the square waveguide. In one embodiment, an end of one filter contacts one waveguide, and an end of the second filter contacts the other waveguide. In a second embodiment, ends of both filters contact the square waveguide.
Patent CA-2078486-A1 (CA)
Title: Blood vessel cannulation device
Inventor: PAUL KAMALJIT S
IPC: A61B5/022
Filed: 1992-09-17
Abstract: This invention provides a cannulation device which is adapted for facilitating the location and venipuncture of a blood vessel with ease and precision.          A carrier assembly supports a movable cubic block unit which contains an aligned combination of an ultrasonic probe and a cannula guide path means.  The cubic block unit moves laterally within a defined space, whereby a blood vessel is located ultrasonically by blood flow detection, and the guide path means assists venipuncture by a cannula.
Patent CA-2079022-A1 (CA)
Title: Method and system for controlling the execution of an application program
Inventor: LINNETT BARRY J
IPC: G06F3/048
Filed: 1992-09-24
Abstract: A method and system for controlling the execution of an application program to effect the performing of a specialized task is provided. In preferred embodiments, an interface computer program gathers status information from the application computer program, collects user input relating to the specialized task, generates commands to send to the application program, and sends the commands to the application program to effect the execution of the specialized task. The interface computer program communicates with the application computer program preferably through the dynamic data exchange of Windows.
Patent CA-2081033-A1 (CA)
IPC: B23B51/04
Filed: 1992-10-21
Abstract: Rigid foam material, for example, expanded polystyrene foam, is drilled using a bit that forms an annular slit in the foam material and compresses the block temporarily around the slit. This frees the core for ready removal. The drill bit has a cutting ring at the leading end with an inside cutting edge and an annular bevel leading from the cutting edge to the outside surface of the cutting ring. The cutting ring is mounted on the leading end of a tube with an inside diameter greater than the inside diameter of the cutting ring in order to clear the core and an outside diameter less than the outside diameter of the cutting ring in order to clear the surrounding foam material.
Patent CA-2081485-A1 (CA)
Title: Acoustical broom
Inventor: BRAZIL HARRY
IPC: E02B15/04
Filed: 1992-10-27
Abstract: ABSTRACT OF THE DISCLOSURE      A novel acoustic broom is provided herein.  The acoustic broom comprises an enclosed housing formed of a material which is transparent to wave energy, (e.g., acoustic energy, e.g., a synthetic plastic material).  A plurality of ceramic, plate-like wave energy  (e.g.,  acoustic energy)  generators are disposed within the housing.   Each of these generators consists of a cylindrical sub-housing formed of material which is transparent to the wave energy, and the ceramic plate-like generator of the wave energy is secured within the cylindrical sub-housing.  The circular  ends  of  the  cylindrical  sub-housing  are  sealed.          Operator means are actuatable to act upon the ceramic plate-like wave energy (e.g., acoustic energy) generators to generate and propagate the wave energy (e.g., the acoustic energy).  These operator means is usually electrical energy means and electrical connections are provided from the ceramic plate-like wave energy generator to the electric operator.
Patent CA-2081737-A1 (CA)
Title: Health care payment adjudication and review system
Inventor: LITTLE JOHN P
IPC: G16H70/20
Filed: 1992-10-29
Abstract: A computerized expert system reviews and adjudicates medical health care payment requests made by physicians to payers, such as insurers, for procedures performed and services and materials rendered to patients in the course of treatment. The system adjudicates a payment request to minimize fraud and mistakes and to determine whether to honor the request and if the request is honored, the dollar amount of the payment. The expert system reviews the payment request based on user-specified review criteria. Such criteria reflects contractual arrangements between payers, providers and patients, current, locally acceptable medical practices and patient and provider payment request patterns.      To perform the review, the expert system obtains relevant prior payment requests as necessary according to the user's pre-determined review criteria;  defines a master list of payable payment requests given current medical procedures, the pre-determined parameters of the review and specific contractual arrangements between the payer, patient and health care provider; analyses the current payment request according to the relevant historical payment requests and the master payable list by applying user-defined interpretive rules to this information; and develops and reports payment decisions based on that analysis.
Patent CA-2083492-A1 (CA)
Title: Ethynylbenzothiophene pesticides
Inventor: ROUSH DAVID M
IPC: C07D333/56
Filed: 1991-07-03
Abstract: Ethynylbenzothiophene compounds of formula (I) are effective as pesticides, wherein R is selected from (a), (b), (c), (d), (e);  R1 is selected from hydrogen, halogen, lower alkyl, lower haloalkyl, and phenylethynyl; R2 is selected from hydrogen, halogen, lower alkyl, lower alkylthio, lower haloalkenyl, haloalkenylthio, phenyl lower alkenyl, formyl, lower alkoxycarbonyl, carboxy lower alkenyl, lower alkoxycarbonyl lower alkenyl, phenyl, 2-thienyl, and methylthien-2-yl; R3 is selected from alkyl, lower trialkylsilyl, lower haloalkyl, hydroxyalkyl, alkylcarbonyl, methylthien-2-yl, 2-thienyl, and benzothien-2-yl; R4 is selected from hydrogen, halogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkylthio, lower alkoxycarbonyl, amino, and alkylcarbonylamino; and R5 is selected from hydrogen, lower alkyl and lower haloalkyl.
Patent CA-2083861-A1 (CA)
Inventor: SO GIN P
IPC: H05B41/285
Filed: 1992-11-26
Abstract: A circuit  is  disclosed to  implement  an  energy  saving electronic ballast (1A) for driving a fluorescent lamp or tube (2).  The circuit is characterized by a high power factor, low harmonic distortion and minimized radio frequency interference.          The circuit includes a unique DC power supply (4) comprising a high pass filter (8), which receives an AC input signal, a diode bridge rectifier (6) and a high speed diode rectifier (D2) which cooperates with the bridge rectifier to provide the power supply with first and second rectification stages. A current regulating capacitor  (C4)  for driving the fluorescent lamp or tube is connected to the DC power supply between the first and second rectification stages.  A trigger and high frequency oscillator are provided after the second rectification stage of the power supply to provide the DC current necessary to operate the ballast circuit.  A protection circuit (30) is connected to the ballast and operable to disable the oscillator and thereby prevent damage to the ballast in the event that the tube or lamp is defective or disconnected  from the ballast  or  subjected  to  abnormal operating conditions.
Patent CA-2084920-A1 (CA)
Inventor: ARRIULOU PASCAL
IPC: F28F27/02
Filed: 1992-12-09
Abstract: ABRÉGÉ DESCRIPTIF Les plaques de cet échangeur de chaleur délimitent un premier ensemble de passages servant à l'échange thermique, et un second ensemble de passages qui se trouvent, sur au moins une partie de leur étendue, en relation d'échange thermique réduite ou à peu près nulle avec les passages dudit premier ensemble et sont agencés pour remplir une fonction annexe de l'échangeur de chaleur, notamment une fonction de stockage de liquide et/ou de recirculation de liquide et/ou de séparation liquide/vapeur. Application aux échangeurs de chaleur cryogéniques.