baber/WOPTO huggingface dataset:
Patent CA-2094912-A1 (CA)
Title: Gto thyristor circuit
Inventor: GRUENING HORST
IPC: H03K17/732
Filed: 1992-10-30
Abstract: In a circuit for hard driving a GTO, the conductor inductance (L1) and the internal inductance of the GTO (L2) form, together with a first capacitor (C1) situated in parallel via a switch (S), a series oscillatory circuit inside the gate circuit. In this connection, the chosen sizes of the first capacitor (C1) and of the first inductance (L1) are such that, if the first capacitor (C1) discharges via the two inductances (L1, L2), the gate current originating from the first capacitor (C1) exceeds half the value of a GTO anode current to be turned off within less than 5 µs in the first quarter oscillation of the series oscillatory circuit.      Moreover, first means are provided which uncouple the first capacitor (C1) from the generation of the gate current after the first quarter oscillation of the oscillatory circuit and allow the gate current to decay slowly in such a way that, at any time, it is greater than the tail current of the GTO.    Finally, second means are provided in the form of a recharging circuit, which means are activated during the decay of the gate current and apply a holding current (V H) which is sufficient for blocking to the gate (G) of the GTO after the decay of the gate current.
Patent CA-2097116-A1 (CA)
Title: Sorbent for Treatment of Effluent Gas Stream
Inventor: RODRIGUEZ DOMINGO
IPC: B01D53/74
Filed: 1993-05-27
Abstract: A process for producing a sulfur sorbent composition in a mixer having a mixer paddle an energy supply is disclosed which includes hydrating an alkaline earth metal oxide in an aqueous solution containing a promoting additive selected from a group consisting of urea and mixtures of urea with a water soluble iron salt under high intensity mixing conditions with the mixer wherein the mixer is operated at a mixer paddle tip velocity of at least 500 ft/min and a mixer energy input of at least 3.5 kW-h per ton of sorbent so as to produce a sulfur sorbent composition having the following physical and chemical properties: alkaline earth metal (wt.%) - 40-52, molar ratio of promoting additive to alkaline earth metal - 0.001-0.2, bulk density (g/ml) -0.35-0.75, surface area (m2/g) - 5-25, pore volume (cc/g) - 0.05-0.14 and mean particle size (um) -  4.
Patent CA-2098338-A1 (CA)
Inventor: STEWEN ULRICH
IPC: C07F7/22
Filed: 1993-06-14
Abstract: The present invention relates to a method of preparing hexaalkyl distannanes by converting bis-(trialkyltin)oxide with a stabilized solution of sodium borohydride in alcohol, preferably methanol, in the presence of an inert solvent.
Patent CA-2099409-A1 (CA)
Title: Stop assembly for a valve
Inventor: GOFF DAVID W
IPC: E03C1/044
Filed: 1993-06-30
Abstract: Abstract A stop assembly for a valve is disclosed.  Two stop rings are interfitted by meshing teeth and driven by a valve stem.  In one embodiment, an escutcheon provides a mounting for one of the ring members as well as a stop surface for contact with both rings.  The stop assembly provides a stop for maximum rotation of a valve member, as well as an adjustable temperature stop function.
Patent CA-2100052-A1 (CA)
Inventor: KADOOKA HUMBERTO T
IPC: C08K3/22
Filed: 1993-07-07
Abstract: The method of making a semiconductor polymeric compound includes an "A" phase consisting of preparing a mixture of a polymeric matric consisting essentially of about 60% by weight low density polyethylene and about 8.5% by weight ethylene vinyl acetate based on a total amount of the polymeric compound to be prepared with about 20% by weight of a conductive lampblack with a porous structure and about 4.0% by weight of a spreading agent consisting of calcium stearate, about 3 by weight of an antioxidant, and about 0.5% of a coupling agent consisting of calcium titanate; and a "B" phase including incorporating the conductive component in the polymeric matrix by the steps of spreading the mixture using "bamburg" type intermittent mixers under process conditions to obtain a high rate of lampblack shearing and homogenizing of a sheared lampblack and spreading and coupling agent portion. A semiconductor body according to the invention is made by extruding and calendering the semiconductor polymeric compound with lampblack aggregations having a high degree of shearing and low degree of orientation.
Patent CA-2102245-A1 (CA)
Inventor: PALMIERI BENIAMINO
IPC: A61L15/44
Filed: 1993-11-02
Abstract: ABSTRACT       A  medication  comprising  a  panel  made  from  a reticulated  silicone  mass   in  which   are  defined interstices filled with a linear silicone polymer  in which at least one drug is dispersed; the panel being produced by:  dispersing a drug in a  linear silicone polymer;  mixing  a  reticulating  silicone  mass  with silica,  additional  linear  silicone  polymer  and  a platinum  catalyst;  mixing  the  product  of  the  two previous stages into a homogeneous dispersion;  mixing the   homogeneous   dispersion   with   a   cross-linking material; and pouring the product into containers.
Patent CA-2103172-A1 (CA)
Title: Multiple access telecommunication network
Inventor: VAN DRIEL CAREL-JAN L
IPC: H04J14/00
Filed: 1993-11-16
Abstract: Abstract: Multiple access telecommunication network.     In a multiple access network a main station is to be capable of distinguishing signals transmitted by sub-stations (2 ... 11) to the main station (1). A method of realising this is the use of SCMA (SubCarrier Multiple Access). According to this method the signal to be transmitted is modulated on a subcarrier having its own frequency and then modulated on a main carrier in each sub-station. In prior-art multiple access network the distribution signals which are to be transmitted to the sub-stations by the main station are modulated each on its own distribution subcarrier and then applied to a shared distribution modulator. For diminishing the requirements posed on the high-frequency properties of the electronic components necessary for the network, the subcarriers for distribution signals and return signals are selected to lie in the same frequency band.            Fig. 4.
Patent CA-2103275-A1 (CA)
Title: N-terminal peptide degradation utilizing dialkylthiocarbamoylhalides
Inventor: BAILEY JEROME M
IPC: G01N33/68
Filed: 1992-03-16
Abstract: An N-terminal peptide sequencing method is disclosed in which a thiocarbamoyl compound is reacted with N-terminal amino acid of the sample to form a derivative of said amino acid which is then cleaved.
Patent CA-2105451-A1 (CA)
Inventor: LOVE JOHN J
IPC: F23N1/00
Filed: 1993-09-02
Abstract: A gas valve includes two solenoid valves connected fluidically in series. A housing assembly contains a circuit board on which electrical components and a plurality of plug terminals and pin terminals are mounted. The plug terminals are adapted to be connected to the solenoid valves and the pin terminals are adapted to be connected to external circuitry. The housing assembly is adapted to be attached to the valve body either in a first position wherein the pin terminals extend in a first direction or in a second position wherein the pin terminals extend in a second direction. The housing assembly and the solenoid valves are adapted for enabling connection of the solenoid valves to the circuit board when the housing assembly is in either the first or second position. The solenoid valves are operated by direct current and are so mechanically constructed as to operate in a relatively quiet manner.
Patent CA-2105861-A1 (CA)
Title: Fish Production
Inventor: KRIVI GWEN G
IPC: A01K61/00
Filed: 1992-03-13
Abstract: A method is described for increasing growth of fish which comprises administering bovine placental lactogen.
Patent CA-2106103-A1 (CA)
Title: Tricyclic compounds
Inventor: YANASE MASASHI
IPC: C07D313/12
Filed: 1993-09-14
Abstract: ABSTRACT OF THE DISCLOSURE           Disclosed is a tricyclic compound represented by formula (I):       ( I ) where X1-X2 represents CH=CH-CH=CH, CH=CH-CH=N or S-CH=CH; Y-Z represents CH2-O or CH2-S; then L-M represents C=CR9 (in which R9 represents hydrogen or lower alkyl)  or CH-CR10R11 (in which each of R10 and R11 independently represents hydrogen or lower alkyl); W represents NR4 (in which R4 represents hydrogen or lower alkyl)  or O; each of R1, R2 and R3 independently represents hydrogen, lower alkyl, lower alkoxy, halogen, nitro, amino or mono or di-lower alkyl-substituted amino; R5 represents hydrogen or lower alkyl; each of R6, R7 and R8 independently represents hydrogen, halogen, lower alkyl or lower alkoxy; provided that when Y-Z represents CH=CH or CH2CH2, then L-M represents C=CR9 (in which R9 has the same meaning as defined above), or CH-CR10aR11a (in which each of R10a and R11a represents lower alkyl of R10 and R11); and a pharmaceutically acceptable salt thereto.     The compound and its salt have an ACAT inhibiting activity and are expected to have preventive and therapeutic effects on hyperlipemia and arteriosclerosis.
Patent CA-2108673-A1 (CA)
Title: Method and apparatus for linear magnetron sputtering
Inventor: MARSHALL JOHN
IPC: H01J37/34
Filed: 1992-04-16
Abstract: An emission enhanced sputtering magnetron apparatus (10) includes an elongated rod or bar like cathode (12) jacketed by a target material (28). An electron emission enhancement device (34) positioned around the end (55) of the elongated cathode (12) creates a thin, highly uniform plasma sheath along the remainder of the cathode (12), thereby enhancing the sputtering rate along the entire length of the cathode target material. A low voltage, high current AC or DC magnet supply (50) connected across the elongated cathode (12) generates a plasma-confining magnetic field circumferentially around the entire length of the cathode (12). In an alternate embodiment, a single elongated tube or bar of the target material can be conformed into the cathode, the electron emission enhancing device, and a working end portion that can be formed into nearly any shape to conform to the shape of the surface being coated with the target material.
Patent CA-2110950-A1 (CA)
Inventor: OGURU MASAKI
IPC: G11B27/30
Filed: 1993-12-08
Abstract: Apparatus and method for recording in selectable recording modes, track number data and information signals in recording tracks on a recording medium, in which the track number of a track in which an information signal is recorded is determined by utilizing a ratio of a track pitch produced when a first recording mode is selected and a track pitch produced when a second recording mode is selected.
Patent CA-2111698-A1 (CA)
Inventor: BRUCK ROBERT
IPC: G01F1/84
Filed: 1992-07-02
Abstract: Apparatus and accompanying methods for inclusion in a Coriolis meter for measuring and updating a mechanical zero value for the meter using only zero flow measurements that have a sufficiently low noise content. Specifically, the meter produces zero flow measurements while no fluid is flowing through the meter. If a standard deviation of these zero flow measurements is less than a pre-defined limit value, then a resulting mechanical zero value, based on those measurements, is subsequently subtracted from the flow based measurement data.
Patent CA-2112041-A1 (CA)
Title: Inhibitors of hiv protease useful for the treatment of aids
Inventor: FRITZ JAMES E
IPC: C07C237/18
Filed: 1993-12-21
Abstract: Abstract The present invention provides novel HIV protease inhibitors, pharmaceutical formulations containing those compounds and methods of treating and/or preventing HIV infection and/or AIDS.
Patent CA-2113119-A1 (CA)
Title: Computer controlled cryoprotectant perfusion apparatus and method
Inventor: FAHY GREGORY M
IPC: A01N1/02
Filed: 1992-07-07
Abstract: A computer-controlled apparatus and method for perfusing a biological organ, such as a heart, kidney, liver, etc. The ap-paratus comprises a plurality of fluid reservoirs and an organ container for holding the biological organ. A first fluid flow path is defined as a loop from the plurality of reservoirs to necessary sensors and temperature conditioning means and back to the plu-rality of reservoirs. The reservoirs are selectively connectable to the first fluid flow path. Pump means are interposed in the first fluid flow path for pumping fluid from the first fluid flow path to a second fluid flow path. The organ container is located in this second fluid flow path. Pump means may also be included in the second fluid flow path for pumping fluid from the organ con-tainer to one or more of the reservoirs or to waste. One or more sensors are interposed in the fluid flow paths for sensing at least one of the concentration, temperature, pH, and pressure of the fluid flowing in the first and second fluid flow paths. Measuring means are interposed in the first and second fluid flow paths for measuring concentration and temperature differences between the upstream and downstream sides, in the fluid flow direction, of the organ container. The sensor(s) and the measuring means are connected to a programmable computer for providing a continuous information stream from the sensor(s) to the computer. The computer is coupled to the selection means and the pump means to continuously selectively control (a) the flow of fluid from each of the reservoirs individually to the fluid flow paths, and (b) at least one of the concentration, temperature, pressure and pH of the fluid flowing in the second fluid flow path, in accordance with a predetermined computer program without operator inter-vention.
Patent CA-2115405-A1 (CA)
Title: 3-pole battery switches
Inventor: WAUGH IAIN W
IPC: B60R16/03
Filed: 1994-02-10
Abstract: An improvement is provided in a vehicle electrical system having a 3-pole battery containing an AUX battery for supplying electrical auxiliaries and a CRA  battery. The improvement consists of a device for connection between the like poles of the battery. The device includes a normally-open switch connecting the CRA and AUX  batteries, and a normally-closed switch connecting the AUX battery to the electrical auxiliaries. Sensing means are provided which detects the state of charge of the AUX  battery and any current from the AUX battery to the CRA battery. These sensing means not only connect and disconnect the CRA battery and the AUX battery, but also connect and disconnect the AUX battery to, and from, the electrical auxiliaries so as to enable a generator to charge both the CRA and AUX batteries and to meet fluctuating loads. The normally-closed switch is a bistable relay.
Patent CA-2116205-A1 (CA)
Title: Cleaning System for Electrolytic Tanks
Inventor: MENENDEZ FRANCISCO JAVIER SITG
IPC: C25C7/00
Filed: 1994-02-22
Abstract: A cleaning system for electrolytic  tanks consisting of a cell with a preferably rectangular layout, very long relative  to its  width, and  which is  provided with  at least one  conduit with perforated walls,  and preferably two, which run  over the  bottom of the  cell, along  its length, and ascend alongside the shorter walls until they reach, approximately,  the level  of liquid of  the tank, said cell being  provided below with  surfaces which  are inclined towards the perforated  conduits, said conduits having sufficient cross-sectional  area to act as  guides through  which are inserted  a suction head  and pipe for sludge extraction.
Patent CA-2117324-A1 (CA)
Inventor: LYNUM STEINAR
IPC: H05H1/40
Filed: 1992-12-11
Abstract: PCT No. PCT/NO92/00199 Sec. 371 Date Jan. 10, 1995 Sec. 102(e) Date Jan. 10, 1995 PCT Filed Dec. 11, 1992 PCT Pub. No. WO93/12635 PCT Pub. Date Jun. 24, 1993.A plasma torch includes an arc having a generator for producing an axial field in the arc's area of operation in which one or more bodies of ferromagnetic material are placed along the torches central axis; the body is in the form of an element incorporated in the torch and is cooled by the provision of channels for a cooling medium wherein the ferromagnetic body is located near the arc's area of operation to reinforce the magnetic field with the body being moveable in an axial direction to adjust the operation parameters of the arc.
Patent CA-2119909-A1 (CA)
Title: Cockroach bait feeding stimuli
Inventor: WOLFE JAMES
IPC: A01N25/00
Filed: 1992-08-25
Abstract: The insect bait composition in the present invention is useful for feeding stimuli to induce insects, especially cockroaches, to preferably feed upon said bait composition, which will stimulate insect feeding and successfully compete with other food sources in the environment, said stimulant bait composition having one or more protein sources derived from poultry liver, silk-worm pupae and hydrogenated soy protein.
Patent CA-2120487-A1 (CA)
Title: Process for modifying viscosity of ethylene copolymers
Inventor: FISHER JOHN R
IPC: C08J3/24
Filed: 1992-10-01
Abstract: The viscosity of copolymers of a) ethylene and C1-C8 acrylate or methacrylates or b) ethylene, vinyl esters of C1-C4 carboxylic acids, and another comonomer selected from the group consisting of carbon monoxide, acrylic acid, methacrylic acid, or a glycidyl ester of acrylic or methacrylic acid is increased, while maintaining gel content at a level of less than 3 %, by treatment with a free radical generating agent.
Patent CA-2120894-A1 (CA)
Title: Low voltage mounting plate and method of installation
Inventor: LAUGHLIN RAYMOND S
IPC: H02G3/12
Filed: 1994-04-08
Abstract: ABSTRACT OF THE DISCLOSURE A low voltage outlet mounting plate for interior wall construction includes means to affix the plate to the face and/or side of a stud at a selected height. The plate also includes a generally rectangular wall projecting outwardly from the face of the stud the approximate thickness of the drywall or finish installation, the outwardly projecting wall surrounding a rectangular opening. A pair of bendable tabs projects from the top and bottom edges of the opening and each is adapted to be bent horizontally inwardly to a direction perpendicular to the face of the stud. A hole is provided in the each tab adapted to receive wiring conduit or a tied loose wire. In this manner, when the wall is finished the wiring or conduit is convenient to the rectangular opening for final installation of the outlet. The disclosure also includes the method of installing the outlet which includes the steps of affixing the plate to the stud, bending the tabs and securing wiring or conduit to the tabs, all before the finish installation of the wall. After the wall is finished, the wire or conduit is convenient to the opening and the installation is completed.
Patent CA-2123956-A1 (CA)
Inventor: SMITH ROBERT C
IPC: A61M39/06
Filed: 1994-05-19
Abstract: A seal assembly is provided which includes a housing and resilient first seal means associated with the housing. The first seal means is preferably a gasket having an aperture formed therein for receiving surgical instrumentation adapted to cooperate with a dilating means having an exterior face associated with the housing for dilating the aperture of the gasket. The first seal means and the dilating means are adapted for relative movement therebetween, the first seal means and the dilating means assuming a first position wherein the aperture of the first seal means is spaced from the dilating means and is adapted to receive surgical instrumentation of a first diameter with minimal insertion force, and assuming a second position wherein the aperture of the first seal means is stretched around the exterior face of the dilating means for receiving surgical instrumentation of a second diameter greater than the first diameter with minimal insertion force.
Patent CA-2127471-A1 (CA)
Title: Methode et appareil automatise pour placer une equerre de montage sur lajoue d'un conduit transversal
Inventor: GOODHUE WILLIAM V
IPC: B23Q7/08
Filed: 1994-02-23
Abstract: La présente invention vise un appareil servant à installer des cornières aux angles de conduits d'air dont les panneaux comportent, à leurs deux extrémités, des brides en U dans lesquelles viennent s'insérer les cornières qui, combinées à des dispositifs de fixation, servent à relier entre eux des tronçons de conduit adjacents. Les cornières sont configurées pour être distribuées automatiquement par une trémie d'alimentation, et la machine connexe est construite de manière que la cornière la plus basse dans la pile soit automatiquement disposée sur les brides du conduit, une fois celui-ci serré en place, puis insérée dans les brides et fixée en place. La cornière est d'abord insérée, en position inclinée vers le bas, dans une rainure pratiquée à chaque coin du conduit, entre les brides adjacentes, puis pressée en place dans les brides. La machine peut poser deux brides à deux angles d'une extrémité du conduit et, par la suite, deux ensembles de machines peuvent simultanément insérer des cornières dans les brides au sommet et au bas du conduit. Enfin, le conduit peut être fourni en deux parties reliées par un joint longitudinal, lesquelles sont automatiquement agrafées au moment de la mise en place des cornières.
Patent CA-2128142-A1 (CA)
Inventor: CLOZEL JEAN-PAUL
IPC: A61K45/06
Filed: 1994-07-15
Abstract: A pharmaceutical composition suitable for the treatment of cardiovascular disorders comprises an inhibitor of the Renin Angiotensin System, and an endothelin antagonist.
Patent CA-2128742-A1 (CA)
Title: Oil-based and water-based adjuvant mixture
Inventor: AASJORD PER M
IPC: A61P31/00
Filed: 1994-07-25
Abstract: Abstract The invention relates to a vaccine comprising an antigenic substance and a mixture of two adjuvants wherein one adjuvant is oil-based whereas the other adjuvant is water-based.
Patent CA-2128886-A1 (CA)
Title: Hand-actuated retention catheter
Inventor: CONWAY ANTHONY J
IPC: B29C41/22
Filed: 1993-01-29
Abstract: A hand-actuated retention catheter (5) is disclosed. The retention catheter includes a tube (12), an overcoat layer (14} encircling the tube (12) and a cavity (16) interposed between the tube (12) and the overcoat layer (14). The cavity (16) encircles the tube and includes a bulbous balloon portion (24) and an enlarged fluid reservoir portion (22) interconnected and separated by a catheter sleeve portion (26) which has a narrowed outside diameter. The expandable balloon portion (24) can be expanded by compressing the fluid reservoir portion (22). Methods of making the hand-actuated retention catheter and methods of using the same are also disclosed.
Patent CA-2128937-A1 (CA)
Title: Method of crosslinking organic polymers
Inventor: KAUFMANN MARITA
IPC: C08L33/06
Filed: 1994-07-27
Abstract: ABSTRACT OF THE DISCLOSURE       Crosslinked polymers are prepared by reacting mutually reactive side groups, comprising reacting polymer chains containing carbonyl side groups, optionally protected, and 1,2- or 1,3-diol side groups, optionally protected, in the presence of an acid catalyst, thereby forming crosslinking bridges between polymer chains.  Crosslinked polymers are also prepared in which polymer chains are bonded together by a low molecular weight crosslinking agent.
Patent CA-2130430-A1 (CA)
Title: Hydrophone arrangement
Inventor: HARVEY ANTHONY P
IPC: G01S7/52
Filed: 1992-02-21
Abstract: A towed streamer including a hydrophone (1) supported, in a filler (4) being either liquid or semi-liquid such as a gel having wave damping properties, within a housing (2). The housing (2) is in the form of a tube whose ends are closed by closures such as rigid plugs (3). Where liquid is used wave damping baffles such as open cell foam structures are provided. A rigid shielding arrangement in the form of reinforcing strips (5) can be provided to shield the hydrophone from bulge waves.