baber/WOPTO huggingface dataset:
Patent CA-2067929-A1 (CA)
Title: Piperazine derivatives
Inventor: CLIFFE IAN A
IPC: A61K31/495
Filed: 1992-05-01
Abstract: Piperazine derivatives of formula I      and their pharmaceutically acceptable acid addition salts are 5-HT1A binding agents, particularly 5-HT1A antagonists and may be used, for example, as anxiolytics. In the formula A is C2-4 alkylene chain optionally substituted by lower alkyl, Z is oxygen or sulphur, R is hydrogen or lower alkyl, R1 is a mono or bicyclic aryl or heteroaryl radical, R2 is a mono or bicyclic heteroaryl radical and R3 is hydrogen or a specified radical such as lower alkyl, cycloalkyl, aryl, heteroaryl or optionally substituted amino.
Patent CA-2070122-A1 (CA)
Inventor: VAN DEVENTER MATTIJS O
IPC: H04B10/29
Filed: 1992-06-01
Abstract: An optical reflective star device having a number of ports for distributing each signal fed to a port over the other ports. Said optical reflective star device is made up a number of star elements and comprises a number of reflectors provided at reflection points in the reflective star device. At least one of the reflectors is an orthogonal polarisation reflector.
Patent CA-2070695-A1 (CA)
Title: Floor treating machine
IPC: B24B7/18
Filed: 1992-06-08
Abstract: ABSTRACT OF THE DISCLOSURE    A  floor  treating machine includes  an  electric motor,  batteries free from leakage and mounted  on  a motor  deck  for supplying a current to  the  electric motor, a rotary shaft extending vertically and  driven by  the electric motor, and a floor  treating  device, such  as a brush or sponge, detachably attached  to  a lower  end  of  the  rotary  shaft  to  be   rotatable therewith.  The floor treating device contacts a floor and  supports  the  machine during  a  floor  treating operation.   The  electric motor is connected  to  the batteries   through  an  on/off  switch    The  floor treating  machine  further includes  a  rotating  rate varying  device  operable upon start of  the  electric motor for gradually increasing a rotating rate of  the electric  motor to reach a  predetermined  operational rotating rate after lapse of a predetermined time.
Patent CA-2071640-A1 (CA)
Title: Process and device for removing a moulded pot from a mould
Inventor: HERBST RICHARD
IPC: B29C33/44
Filed: 1991-02-05
Abstract: PCT No. PCT/EP91/00220 Sec. 371 Date Aug. 3, 1992 Sec. 102(e) Date Aug. 3, 1992 PCT Filed Feb. 5, 1991 PCT Pub. No. WO91/11313 PCT Pub. Date Aug. 8, 1991.When removing a molded part (7), particularly from an injection mold, the part is moved to an intermediate position in a first partial movement (a) at low speed, then to the final position in a second partial movement (b) at higher speed. The first partial movement (a) can take place while the injection mold is opening and/or while a gripping tool (14) or handling device is being introduced. The injection mold used in the process has pressure operated stops (21) which act on the front face of an ejection plate (13) and hold it in the intermediate position or release it for the second partial movement (b) to take place.
Patent CA-2072709-A1 (CA)
Title: Circuit and method for phase error correction in a digital receiver
Inventor: FUNDERBURK DION M
IPC: H04B1/10
Filed: 1992-06-29
Abstract: A CIRCUIT AND METHOD FOR PHASE ERROR   CORRECTION IN A DIGITAL RECEIVER                      Abstract of the Disclosure A digital receiver, such as "C-QUAM" receiver (10), has phase error correction. In another form, a software program may be executed by a conventional digital signal processor to also implement phase error correction. A digital input signal is demodulated to form an in-phase and a quadrature component. The in-phase and quadrature components are processed by a digital envelope detector (24) to form a composite signal containing left and right audio channel information. The in-phase component and composite signal are both processed by a reciprocal cosine estimator (28) and a quadrature channel circuit (38) to provide a difference signal also containing left and right audio channel information. The difference signal is input to phase error correction circuitry (16, 22, 26) to estimate a phase error of the digital input signal. The estimated phase error is then used to correct an actual phase error of the digital input signal during demodulation.
Patent CA-2073874-A1 (CA)
Title: Weight-Checking Apparatus
Inventor: VAN ROOTSELAAR JAN
IPC: G01G15/00
Filed: 1990-11-15
Abstract: The invention relates to an apparatus for automatically weighing a bulk product of particle-like material such as grain for example with a set weight, provided with a weighing bunker, automatic supply and discharge means for feeding the particle-like material to and from the bunker respec-tively, weighing means for the weighing bunker provided with a number of electromechanical load cells on a number of suspension points for detecting the weight of the weighing bunker and for giving an electrical signal which is proportional to the force exercised on the load cell and which signal is used for controlling the supply and discharge means, and in which weight-check-ing means are present for checking the correctness of the measured values given by the load cells (17) for the final determination of the total weight of the weighing bunker. A particular characteristic of the invention is that the check-weighing means are secondary electromechanical load cells (19) the electric signal from which is compared by a comparator (30) with that from the primary electromechanical load cells (17) and the resulting signl is used for controlling (32) the supply and the discharge means. Preferably, a series of combined units (1) of primary and secondary electromechanical load cells (17, 19) are mechanically and serially mounted at a suspension point in such a manner that the secondary detector (19) of a unit (1) is subjected to the same weight-loading P as the concerned primary load cell (17) and checks the signal therefrom. Suitable for their purpose, the combined units (1) com-prise a vertical frame of U-form (15) which the primary load cell (17) is af-fixed to the upper leg (16) and the secondary load cell (19) to the lower leg (18) of the frame (15) of U-form whilst the outer side of the frame (15) of U-form is closed by a dismountable vertical connecting rod (20).
Patent CA-2075264-A1 (CA)
Inventor: FUJITANI MAKOTO
IPC: F04C29/12
Filed: 1992-08-04
Abstract: It is an object of the present invention to provide an inexpensive, efficient pump which can supply lubricating oil by using the revolving motion of an orbiting scroll 2. The pump is so constructed that a piston supported by a fixing member 1 is fitted in a cylinder chamber 102 formed in the inner surface of the end plate 21 of an orbiting scroll 2 which revolves while sliding on said fixing member, by which a pump chamber 104 is defined between them. The piston 101 is extended or retracted depending on the revolving motion of orbiting scroll 2, the volume of said pump chamber 104 is increased or decreased, and a fluid suction port 105 and a fluid discharge port 106 are connected to the pump chamber 104 at predetermined time intervals to supply the fluid.
Patent CA-2080193-A1 (CA)
Title: Unleaded aviation gasoline
Inventor: HENDERSON DOUGLAS H
IPC: C10L1/22
Filed: 1992-10-08
Abstract: An unleaded aviation gasoline composition which comprises a blend of hydrocarbons and at least one cyclopentadienyl manganese tricarbonyl compound dissolved therein in an amount such that the composition has a minimum knock value lean rating octane number of 100 as determined by ASTM Test Method D2700 and wherein Motor Method octane ratings are converted to aviation ratings in the man-ner described in ASTM Specification D910-90, the composition being further characterized by having: a) a distillation temperature by ASTM Test Method D86 of 10% evaporated, 167°F maximum temperature; 40% evaporated, 167°F maximum temperature; 90% evaporated, 275°F maximum temperature; and a final boiling point of 338°F maximum temperature; the sum of the 10 and 50% evaporated temperatures being 307°F minimum; the distillation recovery being 97% minimum; the distillation residue being 1.5% maximum; and the distillation loss being 1.5% maximum; b) a heat of combustion by ASTM Test Method D1405 and as calculated from Table 1 thereof of 18,720 btu per pound minimum, or a heat of combustion by ASTM Test Method D2382 of 18,700 btu per pound minimum, the latter method controlling in case of a discrepancy therebetween; c) a vapor pressure by ASTM Test Method D323 or D2551 of 5.5 psi minimum and 7.0 psi maximum; d) a copper strip corrosion by ASTM Test Method D130 of number 1, maximum; e) a potential gum (5-hour aging gum) by ASTM Test Method D873 of 6 mg per 100 mL maximum, or a potential gum (16-hour aging gum by ASTM Test Method D873) of 10 mg per 100 mL; f) a sulfur content by ASTM Test Method D1266 or D2622 of 0.05% by weight maximum; g) a freezing point by ASTM Test Method D2386 of -72°F maximum; and h) a Water reaction by ASTM Test Method D1094 wherein the volume change, if any, does not exceed ~ 2 mL.
Patent CA-2081141-A1 (CA)
Inventor: TAM ANDREW C
IPC: G11B5/31
Filed: 1992-10-22
Abstract: PULSED CURRENT RESISTIVE HEATING FOR BONDING      TEMPERATURE CRITICAL COMPONENTS                         Abstract Controlled current pulses applied to a shaped resistive heating element formed on the bonding surface of a base or substrate component provide sufficient heat to the bonding interface formed between a ship and the base bonding surface to  produce  a  high  bonding  temperature  at  the  bonding interface while maintaining an opposite surface of the chip at  or  below  a  relatively  low  temperature  critical  for components formed or mounted on the chip surface.  A layer of a thermally setting thin-film bonding agent is applied over a serpentine-shaped resistive heating element having a relatively narrow linewidth formed on the base component bonding surface.   The chip to be bonded is retained in a desired  position  against  the  bonding  surface  over  the heating element and bonding agent  layer while  a current pulse is applied to the heating element via contact pads. The current pulse magnitude and duration are controlled to produce sufficient local heating at the bonding interface to effect the desired bonding without excessive heating of any critical components at some predetermined distance from the bonding site.
Patent CA-2081346-A1 (CA)
Title: Mitomycin derivatives having reduced bone marrow toxicity, processes for their preparation, and the uses thereof
Inventor: TALEBIAN ABDOLHOSSEN
IPC: A61P35/00
Filed: 1991-04-25
Abstract: The invention relates to certain derivatives of mitomycins A and C and the use thereof to treat bacterial infections and to suppress the growth of cancer cells. The invention also relates to processes for the preparation of the mitomycin derivatives of the invention.
Patent CA-2081371-A1 (CA)
Title: Multi-stage wax hydrocracking
Inventor: LIPINSKI JOHN J
IPC: C10G65/04
Filed: 1990-04-09
Abstract: A process for hydrodewaxing a petroleum or shale oil fraction, e.g., petroleum distillate, over a shape selective zeolite in the presence of hydrogen wherein the dewaxing is conducted in at least two stages (10) and (15), with some of the hydrogen (13) added to first stage effluent (12). Dewaxed feed, and a high octane gasoline byproduct (73) are obtained as products.
Patent CA-2082095-A1 (CA)
Title: Vehicle wheel speed sensor employing a locating plate
Inventor: CARON LAVERNE A
IPC: G01D5/245
Filed: 1992-11-04
Abstract: A vehicle wheel speed sensor of the type using permanent magnets to generate a magnetic field having a magnetic path which is conducted through a plurality of teeth on a rotor into a plurality of teeth on a stator with relative motion therebetween where the frequency of the change in the magnetic reluctance varies at a frequency proportional to the wheel speed. The stator is mounted to the end of the axle spindle by way of a securing bolt so that the stator can be easily removed for service without disturbing the axle bearings. As a part of the stator assembly a locating plate is provided which allows the operating gap between the rotor and the stator to be easily established upon assembly of the hub cap to the wheel hub by allowing the rotor to contact the locating plate when the hub cap securing bolts have been loosened and the axle is supported.
Patent CA-2082160-A1 (CA)
Title: Humanised and chimeric monoclonal antibodies
Inventor: BENDIG MARY M
IPC: C12N5/10
Filed: 1992-03-04
Abstract: The invention relates to new humanized monoclonal antibody comprising an artificial modified consensus sequence at least of the FRs of the heavy chain variable region of a human immunoglobulin.  The invention relates, furthermore, to corre-sponding humanized and chimeric monoclonal antibodies which are binding to epitopes of the Epidermal Growth Factor wher-ein the responsible hypervariable regions have the following amino acid sequence: light chain:CDR-1: -Ser-Ala-Ser-Ser-Ser-Val-Thr-Tyr-Met-Tyr-; CDR-2: -Asp-Thr-Ser-Asn-Leu-Ala-Ser-; CDR-3: -Gln-Gln-Trp-Ser-Ser-His-Ile-Phe-Thr-; heavy chain: CDR-1: -Ser-His-Trp-Met-His-; CDR-2: -Glu-Phe-Asn-Pro-Ser-Asn-Gly-Arg-Thr-Asn-Glu-Lys-Phe-Lys-Ser-; CDR-3: -Arg-Asp-Tyr-Asp-Tyr-Asp-Gly-Arg-Tyr-Phe-Asp-Tyr-. The antibodies can be used for therapeutical and diagnostic purposes.
Patent CA-2085383-A1 (CA)
Inventor: OHTA KENJI
IPC: G11B7/24
Filed: 1992-12-15
Abstract: An optical disc includes a recording film formed on one surface of a disc-shaped plastics substrate having light transmission properties, and an antistatic film formed on the other surface of the substrate to which an optical beam is applied, in which the plastics substrate is made by injection molding and a U-shaped annular groove or ridge is formed on the whole circumference on the surface, a radius of which is a distance between the center and a joint position of an injection mold, and a method for manufacturing the same.
Patent CA-2085778-A1 (CA)
Inventor: KARVINEN MIKKO
IPC: D21F7/00
Filed: 1992-12-18
Abstract: Closed press section in a paper machine, comprising a compact combination of press rolls. Therein the rolls (16,17,20,21;16A,17,16B,20,21) form press nips (N1,N2,N3) with each other, between which nips the web (W) has a closed draw supported by the face of a fabric (14,30). The press section has a centre roll (20), in whose connection a press nip or press nips (N2,N3) are provided. Around the centre roll (20;20A) a closed loop of a transfer band (30) is passed, on whose outer face the web (W) is transferred, after the last press nip (N3) in the compact combination of rolls, as a closed and constantly supported draw onto the drying wire (25) in the drying section following after the press section. The transfer band loop is a transfer band fabric (30) that substantially does not receive water and does not rewet the web (W). The web-adhesion properties of the outer face of the transfer band fabric (30) have been chosen so that, after the last nip (N3), the web (W) follows the transfer band fabric (30) and so that the web (W) can be transferred as a fully closed draw onto the drying wire (25). In connection with the loop of the transfer band fabric (30), means for conditioning of the band and/or safety devices (32a, 32b,33,41a,41b,42,43,43a) are provided, by whose means an adequate operation of the transfer band fabric (30) is maintained. <IMAGE>
Patent CA-2087075-A1 (CA)
Inventor: COUTO LUIS R
IPC: H02G15/04
Filed: 1993-01-11
Abstract: A  kit  of  parts  is  adapted  for  terminating electrical  cable  assemblies  of  the  type  having  plural insulated conductors extending within an insulative jacket. The kit of parts is capable of terminating the cable alone or when enclosed  in an outer cable conduit.   The kit includes a body or gland, a hollow insert extending within the gland, a gland nut for screw cooperation with the gland and sealing means disposed between the gland nut and the body for providing a cable assembly seal within the insert. The sealing means further comprises cable sealing components and separate conduit  sealing components which are used alternatively for sealing either the cable alone or the cable contained within the conduit.
Patent CA-2088112-A1 (CA)
Inventor: LIAO JIM
IPC: F16B7/02
Filed: 1993-01-26
Abstract: Abstract A stopper device comprises a rod member having a diameter which is the same as the outer diameter of the free end of the auxiliary handlebar.  The rod member further includes a fastening shaft attached to the lower end portion of the rod member.  The fastening shaft can be inserted into the free end of the auxiliary handlebar securing the rod member thereof.  A supporting rod member is angularly formed on the upper end of the rod member and provides a solid support to the thumb of the rider.
Patent CA-2092289-A1 (CA)
Title: Antimicrobial hydrogels
Inventor: VAUGHN WALTER L
IPC: A61K9/06
Filed: 1991-04-02
Abstract: Antimicrobial thermoplastic hydrogels having various forms and shapes (e.g., particles, fibers, and film) and their method of manufacture are disclosed. These antimicrobial hydrogels are water-swollen, but water-insoluble and have an essentially non-leachable antimicrobial compound ionically bonded to a thermoplastic. The hydrogel comprises at least one vinyl addition interpolymer having pendant alkali metal carboxylate groups or salts thereof, and at least one essentially non-leachable cationic antimicrobial compound ionically bonded to substantially all of the pendant carboxylate groups. Cationic antimicrobial compounds such as quaternary ammonium salts (e.g., cetyl pyridinium chloride) are especially preferred. The antimicrobial hydrogels are stable to a variety of fluid media and can be dehydrated and subsequently rehydrated. The antimicrobial hydrogels can also be formed into dispersions and used to coat fibers and fabrics. The antimicrobial hydrogels are particularly useful in destroying microorganisms contained in aqueous fluid media.
Patent CA-2093018-A1 (CA)
Inventor: HAGER DONALD G
IPC: B01J19/24
Filed: 1992-07-31
Abstract: An oxidation chamber used for irradiating an incoming liquid containing unwanted organic pollutants has a structure that facilitates self-cleaning at intervals.  A modular construction is used, and three basic types of modules (12, 14, and 16) are employed. One of the modules (16) is a TEFLON ? lined carbon steel pipe through which a shuttling scraper is forced at intervals. The shuttling scraper includes an annular wiper (60) that simultaneously cleans the inside surface of the surrounding tubular module (16) as well as the ouside surface of enclosed quartz tube (36). The annular wiper sealingly engages the quartz tube and the tubular module so that it is driven like a piston by the full pressure of the liquid. When the shuttling scraper has reached the end of the tubular module, it parks itself in a position that causes only minimal pressure drop.  This automatic self-cleaning feature of the oxidation chamber overcomes one of the most serious problems encountered with this type of equipment, namely the tendency of a slime to form on the UV lamps and on the normally reflective walls of the chamber, thereby reducing the amount of UV radiation reaching  the liquid. When this occurred in prior art apparatus, it was necessary to shutdown the operation and to dismantle the oxidation chamber to clean the lamps and chamber walls.
Patent CA-2093105-A1 (CA)
Title: Salts of 2-benzoylcyclohexanediones, selective herbicidal agents, process for their preparation, and their use for controlling weeds
Inventor: ORT OSWALD
IPC: C07C253/30
Filed: 1993-03-30
Abstract: Abstract Salts of 2-benzoylcyclohexanediones, selective herbicidal agents, process for their preparation, and their use for controlling weeds Compounds of the formula I     (I)   in which R1-R9 and X+ are as defined in claim 1, are suitable as selective herbicides whose activity may differ compared with the compounds in which X+ is hydrogen, for example an advantageous selectivity in rice crops or in cereals and maize.
Patent CA-2093472-A1 (CA)
Title: Real-time economic load allocation
Inventor: KNUPP STEPHEN L
IPC: H02J3/46
Filed: 1993-04-06
Abstract: REAL-TIME ECONOMIC LOAD ALLOCATION                  ABSTRACT OF THE INVENTION The method allocates a demanded amount of power to a plurality of  power output  apparatus,  each  power  output apparatus having a cost curve associated therewith,  such that each of the power output apparatus supplies a portion of the demanded power, and the total power outputted from the plurality of power output apparatus being optimally cost efficient.  The method comprises the steps of entering data  for  each  of  the  power  output  apparatus  into  a controller.    Solutions  are  generated  for  all  possible output  power  demands  using  an  optimization  by  parts technique within output power bounds of each of the power output apparatus.   The solutions indicate the portion of power each power output apparatus is to supply to provide the total power demanded at the optimal cost efficient. The solutions are stored in tables within a storage unit of the controller.   Upon receipt of a demand for power,  a search is performed of the solution tables to obtain the amount of power each power output apparatus is to supply to meet the demand.   Control signals are then outputted to each of the power output apparatus,  the control signals being indicative of the amount of power to be supplied.
Patent CA-2094741-A1 (CA)
Title: Replaceable stick blade with system for interlocking with reusable shaft
Inventor: HEYDUK HENRY
IPC: A63B60/00
Filed: 1993-04-23
Abstract: ABSTRACT OF THE DISCLOSURE         A replaceable stick blade is to be fitted with a reusable hollow ended shaft.  The blade itself has a shaft fitting shank with a releasable interlock system comprising a blind ended recess in one side of the shank, a first threaded member held against rotation in the blind ended recess and a second threaded member movable radially of the shank between a shaft release and a shaft locking position by threading inwardly and outwardly of the first threaded member.
Patent CA-2096787-A1 (CA)
Inventor: MONKELBAAN DANIEL R
IPC: B01D3/22
Filed: 1993-05-21
Abstract: "PARALLEL FLOW BAFFLED DOWNCOMER FRACTIONATION TRAY"                 ABSTRACT           The efficiency of multiple downcomer type fractionation trays  is  increased  by providing a  pair  of  inclined  liquid deflecting baffles [3] over each downcomer [10] connecting the outlets and inlets of vertically adjacent downcomers to thereby provide a circular liquid flow path relative to liquid movement on each tray and parallel liquid flow on a tray-to-tray basis which acts to increase the length of the liquid flow path and produce Lewis Case II point to plate efficiency enhancement.
Patent CA-2096908-A1 (CA)
Title: Preparation of choline chloride-containing powders, these powders, and their use
Inventor: KIEFER HANS
IPC: A23P10/30
Filed: 1993-05-25
Abstract: Abstract of the Disclosure: In a process for preparing dry, free-flowing choline chloride-containing powders by atomizing an aqueous choline chloride solution, a col-loid-free aqueous choline chloride solution is atomized in a countercurrent-flowing air stream that contains, finely  dispersed,  a  hydrophobic  spraying  auxiliary metered in in such amounts that the sprayed choline chloride droplets are coated with 2 to 15% by weight of spraying auxiliary, based on choline chloride calculated as  100%,  and the coated particles  are,  if  desired, collected in a fluidized bed and dried in the gas stream.