baber/WOPTO huggingface dataset:
Patent CA-2035280-C (CA)
Title: Agricultural sprayer
Inventor: DASHEVSKY NORMAN
IPC: B05B7/32
Filed: 1991-01-30
Granted: 1995-05-30
Abstract: An agricultural sprayer of the injection type has a charging circuit for generating a pressurized circulating flow of fluid additive. This is supplied to the inlet of a metering pump of the variable stroke piston type. This allows the pump to operate at optimum volumetric efficiency throughout a wide range of pump speeds, for agricultural chemicals of all common viscosities and at all temperatures normally encountered. The stroke and speed of the metering pump can thus be controlled to control the amount of chemical injected into the water being sprayed.
Patent CA-2035785-C (CA)
Title: Method and apparatus for optimally autocorrelating an fsk signal
Inventor: TJAHJADI TARUNA
IPC: H04L27/152
Filed: 1991-02-06
Granted: 2002-05-14
Abstract: An autocorrelator for FSK signals. An FSK signal, incoming an a telephone line is filtered by a bandpass filter (13) and sampled by an A/D converter (14). A sample clock (15) provides a fixed sampling frequency, FS. A first interpolating filter (20B) provides selectable delays which are non-integer multiples of 1/FS, and an integer delay (25) provides selectable delays which are integer multiples of 1/FS. The delayed signals are multiplied by a multiplier (26) and then filtered by a low pass filter (27) to provide a filtered autocorrelated signal. A second interpolating filter (20A) provides for reduced jitter in the band timing by increasing the number of samples provided to the decision logic (23). The decision logic (23) provides the decoded data output.
Patent CA-2040428-C (CA)
Title: Transforming adaptors for wave digital filter and balancing network using same
Inventor: KAKUISHI MITSUO
IPC: H03H17/02
Filed: 1990-08-31
Granted: 1995-12-12
Abstract: A balancing network of a wave digital filter type including 3-port pair transforming adaptors (21 to 26) connected in cascade each having capacitor (C) and resistor (R) as constituent elements and performing a filter operation function, wherein note is taken of the fact that there is no reflected wave from each port pair other than the two port pairs for the cascade connection of the transforming adaptors (22, 24, 26) each including resistor (R), that port pair is eliminated, and adjoining transforming adaptors (21, 23, 25) each including capacitor (C) are combined with to form new 3-port pair combined transforming adaptors (41), whereby it becomes possible to realize a filter operation by an amount of operations less than the sum of the amounts of operations by the 3-port pair transforming adaptors (21 to 26).
Patent CA-2042706-C (CA)
Inventor: SASAKI MAKOTO
IPC: B32B27/28
Filed: 1991-05-16
Granted: 2001-08-07
Abstract: A decorative film which is capable of being fused to an ethylene-propylene diene monomer. The film comprises a substrate formed from an ethylene/acrylic acid copolymer or an ethylene/ethyl acrylate copolymer and a synthetic resin elastomer film decoratable layer which is bonded to the substrate by an adhesive.
Patent CA-2043146-C (CA)
Title: Precipitation-hardenable tool steel
Inventor: NORSTROEM LARS-AAKE
IPC: C22C38/44
Filed: 1991-05-23
Granted: 2001-10-16
Abstract: The invention relates to a precipitation-hardenable tool steel intended for plastic forming tools manufactured therefrom. The tool steel at the manufacturing of the tool and prior to hardening through ageing treatment but after solution heat treatment and cooling to room temperature has a hardness less than 40 HRC, but after the manufac-turing of the tool and the subsequent age hardening treatment, i.e. in the precipitation hardened condition, is harder than 45 HRC and has a high corrosion resistance and a toughness sufficient for plastic forming tools. The steel contains in weight %: max 0.08 C, max 1    Si, max 2   Mn, 9 - 13 Cr, 7 - 11 Ni, max 1   Mo, 1.4 - 2.2 Al, and balance being essentially only iron, impurities and accessory elements in normal amounts.
Patent CA-2046974-C (CA)
Inventor: LAZARUS HARRISON M
IPC: A61B19/00
Filed: 1991-07-12
Granted: 1996-11-12
Abstract: Endovascular grafting system having a capsule catheter comprising a flexible elongate tubular member having proximal and distal extremities and a capsule mounted on the distal extremity of the tubular member. The capsule is generally cylindrical in shape and is formed of a helical wrap of a metal ribbon. The wraps are bonded into a unitary capsule permitting bending of said unitary capsule.  A graft is disposed within the capsule.  The graft is comprised of a tubular member having proximal and distal ends.  Hooks are secured to the proximal and distal ends of the tubular member and face in a direction outwardly towards the inner wall of the capsule.  A push rod is disposed within the capsule catheter and engages the graft whereby upon relative movement between the push rod and the capsule catheter, the graft can be forced out of the capsule.
Patent CA-2047259-C (CA)
Title: Palladium catalyst systems for selective hydrogenation of diene polymers and copolymers
Inventor: PATTERSON ROBERT THOMAS
IPC: B01J31/18
Filed: 1991-07-17
Granted: 2001-04-24
Abstract: A catalyst precursor is provided that is useful in the selective hydrogenation of olefinic unsaturation in polymers or copolymers. The precursor comprises a palladium salt that is complexed with a complexing agent selected from the group consisting of organic phosphates, dialkylidene acetones, and tetra-alkyl ammonium hydroxides. The catalyst precursor may be used in batch, step-wise addition or continuous systems.
Patent CA-2051172-C (CA)
Title: Device for mouth-inhaling aerosol medicaments
Inventor: CHIESI PAOLO
IPC: A61M15/00
Filed: 1991-09-11
Granted: 2002-08-20
Abstract: The invention provides a device for mouth-inhaling medicaments dispensed as aerosols by pressurized cans. The device is flat and compact in shape, comprises a seat for housing a can and defines an expansion chamber into which the aerosol dispensed by the can, when operated, penetrates and expands to circulate with a vortex flow which causes the solvent to evaporate and the flow movement to continue for a relatively long time, hence enabling only very small particles of the medicament to be drawn into the bronchial tree.        There is only minimum aerosol particle deposition on the walls of the oropharingeal cavity, and inhalation can continue after the entry of aerosol into the expansion chamber ceases.
Patent CA-2059129-C (CA)
Title: Encapsulation process
Inventor: SULLIVAN SEAN M
IPC: A61K9/127
Filed: 1990-06-20
Granted: 1996-07-02
Abstract: A process for the encapsulation of oligonucleotides in liposomes includes the suspending of liposomes containing a diva-lent cation in a solution containing an oligonucleotide and having an osmolarity of less than that of the internal aqueous phase.
Patent CA-2059678-C (CA)
Title: Reversible variable speed drive mechanism
Inventor: CSOTONYI GYULA
IPC: F16H61/20
Filed: 1992-01-20
Granted: 1995-11-07
Abstract: A reversible variable speed drive mechanism is disclosed formed of an engine crankshaft and a balancing shaft parallel to the crankshaft. A second pulley is non-rotatably secured to a first end of the balancing shaft.   The second pulley is coupled to a first pulley at a first end of the crank shaft by a belt. The second pulley has a belt supporting circumference which is adjustable such that the speed of the balancing shaft is adjustable by altering the circumference around which the belt travels. A planetary gear assembly is coupled to a second end of the crankshaft.  The balancing shaft sprocket is coupled by a chain to a sprocket on the planetary yoke such that the rotation of the planetary yoke is coupled to the rotation of the balancing shaft.   By altering the rotational speed of planetary yoke relative to an input gear, the output gear can be made to rotate in a first direction, in a second direction or assume a neutral stationary position. A locking sprocket is rotatably mounted on the balancing shaft. The locking sprocket is coupled by a chain to a sprocket on the input gear such that the locking sprocket rotates in response to rotation of the input gear.  By locking the locking sprocket to the balancing shaft when the output gear is in a neutral position, the speed of the planetary yoke relative to the input gear is maintained.
Patent CA-2060380-C (CA)
Title: Method and apparatus for communicating compressed digital video signals using multiple processors
Inventor: PAIK WOO H
IPC: H04N21/434
Filed: 1992-01-30
Granted: 1998-05-19
Abstract: Digital video signals are processed by a plurality of independently operating processors (42, 44, 46, 48) to provide data for transmission in a compressed, motion compensated form.  A video image frame area (10) is divided into a set of subframes (12, 16, 20, 24).  The set of subframes is systematically shifted such that the individual subframes progressively cycle across and wrap around the video image frame area.  For each successive video frame, video image data bounded by each of the different subframes is independently compressed using motion estimation to reduce data redundancy among the successive frames.  The motion estimation is limited for each subframe of a current video frame to areas of a previous video frame that were bounded by the same subframe in the previous frame. In an illustrated embodiment, the set of subframes (12, 16, 20, 24) is shifted once for each successive video frame, and each subframe includes a refresh region (14, 18, 22, 26) whereby the video image frame area (10) is progressively refreshed as the subframes are shifted thereacross.  Receiver apparatus (60-82) for use in decoding the independently processed subframe data is also disclosed.
Patent CA-2061532-C (CA)
Title: Selective pager receiver
Inventor: MOCHIZUKI YASUYUKI
IPC: H04B7/26
Filed: 1992-02-19
Granted: 1999-02-02
Abstract: Even when a user is unaware of a reception informing operation, reception informing functions are automatically stopped to prevent unnecessary current consumption.  A receiver includes a mode switch for performing switching between a function for manually stopping the operations of various reception informing functions such as an audible tone, display, vibration, and light emission and a function for automatically stopping them, an auto reset setting switch for performing selection for automatically stopping any of the reception informing functions when the manual stop function is selected, and a timer for automatically stopping the reception informing function selected by the auto reset setting switch when a predetermined duration has elapsed.  Even in a manual reset state, the set reception informing function is automatically stopped when a predetermined duration measured by the timer has elapsed.
Patent CA-2071097-C (CA)
Title: Reinforcing fiber sheet, method of manufacturing the same, and method of reinforcing structure with the reinforcing fiber sheet
Inventor: SAITO MAKOTO
IPC: B32B5/24
Filed: 1992-06-12
Granted: 1999-02-16
Abstract: The present invention relates to a reinforcing fiber sheet which can easily be handled at a reinforcement cite where structures, such as bridges or elevated roads, are reinforced using fiber reinforced plastics and which enables the reinforcement strength of the structure to be increased, a method of manufacturing such a reinforcing fiber sheet, and a method of reinforcing structures using the sheet.
Patent CA-2084386-C (CA)
Title: Hiv antigen
Inventor: SAITO ATSUSHI
IPC: C12N15/49
Filed: 1992-12-02
Granted: 2001-02-20
Abstract: Disclosed is a substantially pure HIV antigen comprising a Gag-Env fusion protein consisting of a Gag peptide fused at its C-terminus to an Env peptide, wherein the Gag peptide comprises a contiguous sequence of at least ten amino acids of the amino acid sequence represented by Gag (308-437) and the Env peptide comprises a contiguous sequence of at least a part of the amino acid sequence represented by Env (512-699), the part containing at least one epitope which is reactive to an HIV antibody. The gag-env fusion DNA corresponding to the HIV antigen of the present invention allows the production of the desired high antigenicity HIV antigen in high yield. Therefore, the HIV antigen of the present invention can be advantageously used as an active component for a diagnostic reagent, a vaccine, an antibody preparation and a therapeutic reagent for AIDS. Also disclosed is a substantially pure HIV antigen comprising a Gag protein coded for by the entire gag gene.
Patent CA-2087626-C (CA)
Title: Frequency domain polarimeter
Inventor: SHEA DONALD FRANK
IPC: G01R29/08
Filed: 1993-01-20
Granted: 1999-03-30
Abstract: The wave type, orientation and rotation of an incident electromagnetic signal  having an unknown polarization is identified through single channel frequency domain signal analysis  of  the  incident  electromagnetic  wave  power  as measured by an orthogonally polarized electromagnetic sensor.          A controlled switch samples the power measurements at each orthogonal output of the sensor to generate a signal comprised of a carrier frequency component and two sideband frequency components  in the  frequency domain.   The  sampled  radio frequency  signal  is  down converted by a  single  channel receiver to an intermediate frequency where the carrier and one sideband frequency component are separated and coherently shifted  to  the  same  frequency.    A  phase  detector and ratiometer  measure  the  relative  phase  and  amplitude differences  between  the  separated  carrier  and  sideband frequency components to identify the wave type, orientation and rotation of the incident electromagnetic signal.
Patent CA-2088720-C (CA)
Title: Power control method for use in a communication system
Inventor: BRUCKERT EUGENE J
IPC: H04B7/005
Filed: 1993-02-03
Granted: 1998-01-06
Abstract: The power of a received signal is measured at a base station (52).  This measured power is used to predict a future power level (55) of the received signal and from that to determine the appropriate power adjustment command (56-59).  The power adjustment command is then sent to the transceiver (49).
Patent CA-2089650-C (CA)
Title: Process for the preparation of aminomethanephosphonic acid and aminomethylphosphinic acids
Inventor: KLEINER HANS-JERG
IPC: C07F9/38
Filed: 1991-08-07
Granted: 2001-10-23
Abstract: Aminomethanephosphonic acid and aminomethylphosphinic acids are interesting as biologically active compounds or as intermediates for the preparation of biologically active compounds. According to the invention, such compounds of the formula I   (see formula I) in which R1 is OH, C1-C4-alkyl or phenyl, can be prepared in a technically simple manner by reacting compounds of the formula II   (see formula II) in which R2 is H, C1-C6-alkyl, benzyl, phenyl, optionally substituted by C1-C4-alkyl, -alkoxy and/or halogens and R1 is as defined above, with water, at 80 to 300°C.
Patent CA-2094025-C (CA)
Inventor: SEPAVICH DAVID V
IPC: B65H19/22
Filed: 1991-09-30
Granted: 1996-12-10
Abstract: An apparatus and method for cross-cutting a traveling web (W) of material, such as paper, while winding the traveling web into successive rolls of a specified diameter includes a laser (48), a pair of spaced adhesive applicators (40, 40') and energy means (44) for activating the adhesive (46) to change it from an essentially inert to a web adhesive state. A pair of horizontally arrayed drums (12, 14) support a core (26) on which the traveling web (W) is wound. Upstream of the core (26), over the lower periphery of one of the drums (12, 14), the on-coming web has its drum-supported surface exposed to a transversely moveable laser (48) which cuts the web transversely to its direction of travel. Upstream of the transversely actuated laser (48) are a pair of adhesive applicator nozzles (40, 40') which are spaced in the web travelling direction and movable transversely with the laser (48). An ener-gy means (44) is mounted between the adhesive nozzles (40, 40') and laser (48) to activate the adhesive sprayed by the nozzles. The travelling web can, thus, be severed by the laser (48) and have its trailing edge glued to the web roll being wound while the leading edge of the severed web can be glued to a new core inserted in the winder between the drums (12,14).
Patent CA-2095154-C (CA)
Title: Method and apparatus for classifying articles according to their color
Inventor: ALLAIRE GILLES
IPC: G01J3/46
Filed: 1993-04-29
Granted: 1998-08-04
Abstract: A method and apparatus for classifying articles according to their color, wherein a first pair of wavelengths is selected on a plurality of light reflection curves in terms of a reflected light wavelength spectrum. An article to be inspected is illuminated with light comprising the first pair of wavelengths and light reflected therefrom is measured to detect light reflection values corresponding to this first pair or wavelengths. A primary signal is produced, which represents either a difference between or a ratio of the detected light reflection values, this signal being indicative of the color of the inspected article. At least one secondary wavelength is selected on the reflected light wavelength spectrum, and the inspected article is illuminated with light comprising this secondary wavelength and light reflected therefrom is measured to produce a secondary signal which is further indicative of the color of the inspected article. A computer provides a classification frame comprising a first pattern consisting of a first and second crossing set of lines respectively defined by mathematical analysis, this classification frame defining a plurality of color classes. The computer classifies the inspected article in one of the plurality of color classes defined by the frame whenever the primary and secondary signals comply with a specific condition. The computer rejects the inspected article whenever the primary and secondary signals do not comply with this specific condition.
Patent CA-2096743-C (CA)
Title: Method for resealing a toner cartridge
Inventor: CHITOURAS COSTAS G
IPC: B29C65/18
Filed: 1991-12-06
Granted: 1998-12-15
Abstract: An original equipment type seal for recharger toner cartridges can be installed without splitting the cartridge itself, by screening a border of "hot-melt" type adhesive onto a strip of polyester. The softening or melting point of the adhesive is chosen to be above that of the toner powder, but below that of the cartridge. The polyester seal is inserted into the cartridge with a metallic insertion tool. Heating the tool, or inserting a hot tool, will cause the adhesive to melt and seal the cartridge. The insertion of a "pressure tool" incorporating a magnet into the fill hole in the cartridge allows one to bring about an intimate contact between the adhesive and the cartridge. The utilisation of wax-based adhesives and a cold, and then heated, insertion tool, together with a magnetic pressure tool is the preferred embodiment.
Patent CA-2112089-C (CA)
Inventor: LEANES JAMES A
IPC: H01P1/00
Filed: 1993-12-21
Granted: 2001-05-29
Abstract: A wideband detector having a substantially flat response is made by using the sigval at the isolation port of a coupler. As the response or transfer characteristic at the isolation port is substantially linear, a matching network having the inverse of opposite transfer characteristic with respect to frequency may be connected to the coupler. The addition of the matching network transfer characteristic to the transfer characteristic of the coupler in the isolation port produces a superposition. The matching network transfer characteristic compensates for the linear varying transfer characteristic at the coupler isolation port to produce a substantially flat output of the matching network. The detector connected to the matching network output will then produce a detector signal which is substantially flat over the frequency range of the bandspread of interest.
Patent CA-2114236-C (CA)
Title: Cycloolefin copolymer composition and method for the preparation thereof
Inventor: TSUJI YOICHIRO
IPC: C08F283/14
Filed: 1993-05-24
Granted: 2001-04-17
Abstract: Provided are cycloolefin copolymer compositions comprising a hydrocarbon elastomer component substantially free from a polymerizable double bond and a cycloolefin random copolymer component obtained by copolymerization of an .alpha.-olefin of at least 2 carbon atoms and a cycloolefin in the presence of said hydrocarbon elastomer component, said composition containing said hydrocarbon elastomer component in an amount of 1-50% by weight, and a method for preparing said cycloolefin copolymer compositions.      Also provided are cycloolefin copolymer compositions comprising a hydrocarbon elastomer component having a polymerizable double bond and a cycloolefin copolymer component obtained by copolymerization of an .alpha.-olefin of at least 2 carbon atoms and a cycloolefin in the presence of said hydrocarbon elastomer component, said composition containing said hydrocarbon elastomer component in an amount of 1-50% by weight.      Such cycloolefin copolymer compositions as mentioned above are excellent in transparency and mechanical strength and also excellent particularly in impact resistance.     In particular, when a cycloolefin elastomer obtained by copolymerization of an .alpha.-olefin of at least 2 carbon atoms, a cycloolefin and a non-conjugated dime of 5-20 carbon atoms is used as the above-mentioned hydrocarbon elastomer component having a polymerizable double bond, the resulting copolymer compositions are excellent particularly in transparency.
Patent CA-2116944-C (CA)
Inventor: WRONKIEWICZ ROBERT D
IPC: B61F5/52
Filed: 1994-03-03
Granted: 1997-02-25
Abstract: The present invention involves structurally changing an American Association of Railroads (AAR) standard 100 ton sideframe so that it is statically and dynamically capable of handling a 110 ton payload; this is accomplished by reducing two weak points on the sideframe.  The first weak point is located in the sideframe upper compression member, near the vertical support column, and the second weak point is the upper portion of the area comprising the lower diagonal tension member core support hole.  Stresses in this area are reduced by gradually extending the zone where cross-sectional wall thicknesses normally experience an abrupt change.  The gradual decrease in cross-sectional areas increases the static strength of the sideframe by increasing the elastic or ultimate loading limits.  In the second area metallic mass is added, thereby increasing the section modulus of the sideframe near the core support hole.  Increasing the section modulus increases the number of flexure stresses which the improved AAR standard 100 ton sideframe can withstand, allowing this sideframe to meet AAR dynamic testing standards set for a 100 ton sideframe, even though it's loaded with 110 tons of payload.
Patent CA-2118998-C (CA)
Inventor: SUPRISE JODY DOROTHTY
IPC: A61F13/15
Filed: 1994-03-14
Granted: 2004-07-13
Abstract: The present invention is directed to an absorbent article which is configured to prevent drooping and to improve fit. The article comprises attachment means for attaching the article about the waist of a wearer such that attachment points are located on the sides of the article and behind a transverse center plane of the article.
Patent CA-2120187-C (CA)
Inventor: WITTRISCH CHRISTIAN
IPC: E21B43/30
Filed: 1994-03-29
Granted: 2004-11-23
Abstract: La présente invention concerne un dispositif de pompage comportant deux orifices d'entrée d'aspiration espacées d'une distance prédéterminée par un tube prolongateur. Dans une variante, les moyens de pompage comportent deux corps de pompe coopérant chacun avec les deux orifices d'entrée. Dans une autre variante, les moyens de pompage comportent un corps de pompe et des moyens de contrôle des débits des effluents provena nt des deux orifices d'entrée.