baber/WOPTO huggingface dataset:
Patent CA-2059580-C (CA)
Title: Auto-tuned apparatus for band-pass filter
Inventor: ISHIKAWA YOUHEI
IPC: H03J7/02
Filed: 1992-01-17
Granted: 1996-06-11
Abstract: An auto-tuned apparatus for a band-pass filter, wherein, the generated reference signals having the given frequency to be set are mixed with signals to be outputted from the band-pass filter when the reference signals have been inputted to the band-pass filter so as to multiply them for outputting the signals of the multiplied results, the signals of the direct current component from the signals of the multiplied results to be outputted are filtered, and the band-pass filter is controlled so that the center frequen-cies of the band-pass filter may agree with the frequencies of the reference signal in accordance with the signal of the direct current component to be outputted, whereby the center frequency of the band-pass filter can be adjusted automatically to the desired set value with simple circuit construction and precision better than in the conventional embodiment.
Patent CA-2062620-C (CA)
Title: Surveillance apparatus with enhanced control of camera and lens assembly
Inventor: PAFF ROBERT
IPC: G08B13/196
Filed: 1992-03-10
Granted: 1998-10-06
Abstract: A surveillance device having a camera and lens assembly in which a condition of the assembly is controllable by a movable part and in which a closed loop digital motion control system is used to control the movable part and, therefore, the condition.
Patent CA-2072547-C (CA)
Title: Inhibited acryloxysilanes and methacryoxysilanes
Inventor: TURNER SCOT MARCY
IPC: C07F7/18
Filed: 1992-06-26
Granted: 1995-12-12
Abstract: Compositions containing an acryloxysilane or a methacryloxysilane and an N,N-dialkylamino-methylene phenol in an amount at least sufficent to inhibit polymerization of the silane during its formation, purification and storage.  Methods for producing such compositions are also provided.
Patent CA-2075837-C (CA)
Inventor: KLAUS THOMAS R
IPC: H04B1/16
Filed: 1992-01-24
Granted: 1997-12-02
Abstract: Méthode pour commander la durée de marche (313) d'un récepteur. Le récepteur radio (109) reçoit des signaux RF (309) d'une durée prédéterminée (305) à intervalles prédéterminés (301). La méthode varie la durée de marche (415, 417) jusqu'à ce que le détecteur de données (205) soit sur le point de cesser de détecter l'ensemble des données.
Patent CA-2080400-C (CA)
Title: Herbicidal composition
Inventor: SAKAKI MASAHARU
IPC: A01P13/00
Filed: 1992-10-13
Granted: 2003-03-18
Abstract: The present invention is directed to a herbicidal composition containing (a) 2-[4-chloro-2-fluoro-5-(n-pentyl-oxycarbonylmethoxy)phenyl]-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione and (b) at least one compound selected from the group consisting of N-(phosphonomethyl)glycine, (2-amino-4-methylphosphinobutyryl)alanylalanine, DL-homoalanin-4-methyl-yl(methyl)phosphinic acid and salts thereof. The invention is also directed to a method for controlling undesired weeds by application of the herbicidal composition.
Patent CA-2082319-C (CA)
Title: Optical signal equalizer for wavelength division multiplexed optical fiber systems
Inventor: OLSHANSKY ROBERT
IPC: H04B10/18
Filed: 1992-11-06
Granted: 2004-01-20
Abstract: This invention disclosure describes the application of a polarization insensitive acoustically-tuned optical filter used in a multichannel WDM system to equalize variations in the power level of the WDM channels. The invention also describes a simple means for providing a low frequency control system which enables the equalizer to determine the signal levels of N optical carriers prior to equalizing the signals.
Patent CA-2105101-C (CA)
Inventor: ENSSLE KARLHEINZ
IPC: B01D53/50
Filed: 1993-08-30
Granted: 2007-10-30
Abstract: The invention relates to the use of the IL-4 receptor or of derivatives thereof for the therapy, prophylaxis and diagnosis of allergic, viral, parasitic and bacterial diseases and of fungal infections.
Patent CA-2109510-C (CA)
Title: Step scanning technique for interferometer
Inventor: CURBELO RAUL
IPC: G01B11/00
Filed: 1992-05-08
Granted: 2000-01-25
Abstract: A fast and effective way to step a relative position quantity by a reference interval. Each step in relative position includes open-loop and closed-loop control intervals. An actuator (27) capable of changing the relative position and a closed loop servo (17) that acts on the actuator (27) to keep the relative position centered on the nearest of a series of reference values. The servo (17) has locked the relative position to a particular initial reference value. First, the actuator (27) is caused to change the relative position by an amount approximately equal to the reference interval in a manner that the servo (17) cannot track the change, such as by disabling the servo (17). Servo control is then reestablished, at which point the servo (17) operates to keep the relative position centered on the nearest reference value.
Patent CA-2112162-C (CA)
Title: Telemetry system for an implantable cardiac device
Inventor: DE CORIOLIS PAUL E
IPC: A61N1/372
Filed: 1993-12-22
Granted: 1999-11-09
Abstract: A telemetry system and method of monitoring cardiac activity or providing therapy to the heart for an implantable cardiac device reduces power consumption of the cardiac device and assures accurate transmission of data. The system includes a receiver and a transmitter in an external programmer and a receiver section and transmitter section in the cardiac device. The cardiac device is implanted beneath the skin of a patient and includes circuit means which monitors activity of the heart of the patient and generates data indicative of the monitored activity. The receiver section and the transmitter section of the cardiac device are coupled to the circuit means for communicating with the external programmer. The receiver section and the transmitter section of the cardiac device generally remain in a de-energized state. The receiver section is energized at spaced apart time intervals to detect an initiation signal transmitted by the external programmer. If the initiation signal is detected, the receiver section and the transmitter section of the cardiac device are fully activated. Command transmissions from the external programmer and data transmissions from the cardiac device include means for verifying the accuracy of transmission. Portions of transmissions may be retransmitted to correct transmission errors. The external programmer includes a signal strength indicating means for providing an indication of received signal strength which the user can use to position the receiver and transmitter in the external programmer for optimum received signal strength. The antenna or antennas are disposed in the header of the implanted device to facilitate communication at high speed.
Patent CA-2112553-C (CA)
Inventor: CHO YOUNG HO
IPC: G11B15/675
Filed: 1993-12-29
Granted: 2002-02-05
Abstract: A cassette lid opening and closing system of a magnetic recording and reproducing apparatus capable of opening a cassette lid during seating a tape cassette on a deck and closing it after seating the tape cassette to thereby loser the height off the deck includes a lid-open member operating link for swinging a lid-open member to open the lid during seating the cassette holder on a slider, a lever for closing the open lid by releasing a lid-pressing operation of the lid-open member when the tape cassette is seated on a lower chassis, and a lever operator for operating the lever, so that the cassette lid is closed during reproducing the tape to allow for manufacturing a highly-thin deck.
Patent CA-2121475-C (CA)
Title: Transducer assembly and method
Inventor: RIDENOUR RALPH G
IPC: G01L9/00
Filed: 1993-08-25
Granted: 2001-03-13
Abstract: A transducer assembly includes a cap readily removable from a housing and enclosing a pressure transducer and a main valve body. Seals are located inside the housing which often are elastomeric or otherwise heat damageable. A top cartridge together with all of the seals inside the housing is readily disconnectable from the housing to separate the seals from the transducer assembly first end. This first end may then be heat sealed by soldering, brazing, or welding to a manifold or the like without any heat damage to the various seals. The transducer assembly then may be readily reassembled to form an operative transducer assembly.
Patent CA-2122608-C (CA)
Title: Liquid reservoir
Inventor: JACOBSEN FINN
IPC: D21D5/26
Filed: 1992-10-28
Granted: 2000-12-05
Abstract: A novel liquid reservoir apparatus is provided herein. Such apparatus includes a liquid reservoir having an inlet conduit for liquid, an outlet conduit for liquid, reservoir walls, and a reservoir bottom. A liquid outflow arrangement is located inside the reservoir and is connected to the inlet conduit. The outflow arrangement includes means for ensuring that an outlet opening from the outflow arrangement follows the surface of liquid which may be in the reservoir. The liquid reservoir constitutes a buffer for a foaming-susceptible spent liquor which may be produced from a cellulose industry, wherein the level of liquid which may be within the reservoir varies significantly. The outflow arrangement also includes a liquid/gas separating means in the form of a cyclone separator.
Patent CA-2122807-C (CA)
Inventor: MONTSERRAT BONFILL JOSE
IPC: B03C1/30
Filed: 1994-05-03
Granted: 1998-07-28
Abstract: The invention provides apparatus which can be utilized to prepare outdated or spoiled foodstuffs intended for human consumption, for animal consumption.  It is applicable to the recovery mainly of pastry goods, such as cookies, biscuits or the like, packaged in cardboard, plastic or the like, which may also include staples, nails or other fastening and sealing elements.  The raw material in bulk is received in a hopper from which it is led by means of an Archimedean screw to a hammer mill or the like to be ground.          After passing through grids it is collected by a second helicoidal screw, whose covering tube has in its final section a perforated screen through which useable material in the form of grain or "flour" falls and is separated by gravity.  The remaining unusable material that still possibly contains particles of edible material passes to a trommel, at the outlet of which there is an aspirator device for the unusable material.  In the upper portion of the grinding mill there is a device with magnets to remove the possible staples, nails, etc.  The remaining material that comes out of the trommel and which is not picked up by the aspirating device is returned for another pass through the grinding mill.
Patent CA-2123645-C (CA)
Title: Medical adhesive tape and tape preparation
Inventor: HIGASHIO KAZUHIRO
IPC: A61L15/58
Filed: 1994-05-16
Granted: 2002-03-26
Abstract: A medical adhesive tape and a tape preparation comprising the medical adhesive tape containing percutaneous absorption-type drugs in a pressure-sensitive adhesive layer are disclosed. The medical adhesive gape comprises a flexible support having formed on at least one surface thereof a hydrophobic pressure-sensitive adhesive layer, wherein when the pressure-sensitive adhesive layer is adhered to a bakelite plate, an initial shear modulus at applying a load of 50 g/cm2 to a shearing direction is 1x10 5 dyn/cm2 or less and the permanent shearing strain occurring in the pressure-sensitive adhesive layer at removing the load after adding the load for 30 minutes is 30% or less of the shearing strain at removing the load.
Patent CA-2125005-C (CA)
Title: Method and apparatus for treatment of a potassium chloride mixture
Inventor: BEHER HANS WERNER
IPC: C01D3/14
Filed: 1994-06-02
Granted: 1998-04-21
Abstract: A mixture of potassium chloride having grains of various sizes is leached in a first stage at elevated temperature using an unsaturated solution; the extremelyfine fractions are completely dissolved and the coarse fractions are partially dissolved; in a second process stage the purified mean fraction is transported and the previously dissolved quantity of KCI is crystallized at low temperature onto the purified grains, so that a high-purity product with a narrow grain spectrum, and with uniform purity with respect to the grain size, is obtained.
Patent CA-2128545-C (CA)
Inventor: RINEY ROSS W
IPC: F02B53/08
Filed: 1993-02-03
Granted: 2003-06-03
Abstract: A rotary engine is provided comprising a hous-ing (12) and a rotor (14) comprising a compression eccentric (20) and a power eccentric (22). Gases are compressed within the space formed by the housing (12), the comprising eccentric (20) and a compres-sion gate (72), after being introduced through an in-take manifold (28). Gases are transferred from the compression eccentric to the power eccentric through a rotary combustion chamber (36), in which combus-ion of the gases is initiated by an ignition device. Ex-panding gases cause rotation of the rotor(14) by ex-panding in he space formed by the housing (12), power eccentric (22) and a power gate (66). Gases exit from the power eccentric (22) through an exhaust port (80).
Patent CA-2131094-C (CA)
Title: Acetic acid recovery
Inventor: JOHNSON MARK R
IPC: C07C53/08
Filed: 1993-01-28
Granted: 1997-03-18
Abstract: A process for recovering acetic acid from a mother liquor containing acetic acid, formic acid, acetic anhydride and formic acetic anhydride comprising the steps of:     (a)  heating said mother liquor to a temperature greater than or equal to about 70 °C for a time period ranging from about  1 hour to about 24 hours to convert all of said formic acetic anhydride to acetic acid and gaseous carbon monoxide and to fully deplete either said acetic anhydride or said formic acid, whichever is initially present in a stoichiometric lesser amount and thereby produce a mixture comprising acetic acid and either acetic anhydride or formic acid, whichever has been depleted; and (b)  separating said acetic acid from the remainder of said mixture produced in step (a) is provided.
Patent CA-2136969-C (CA)
Inventor: LEWIS MICHAEL E
IPC: A61K38/08
Filed: 1993-06-01
Granted: 2009-03-24
Abstract: The invention features a method of using insulin-like growth factor-I (IGF-I) or insulin-like growth factor-III (IGF-III) to prevent or treat peripheral neuropathy in a mammal.
Patent CA-2143595-C (CA)
Inventor: MILLER MICHAEL L
IPC: C08L67/06
Filed: 1995-02-28
Granted: 2005-06-14
Abstract: A heat reservoir device for maintaining a comestible at a desired consumption temperature consisting essentially of a shaped reinforced thermoset polyester resin, preferably one made by reacting isophthalic acid, propylene glycol, and fumaric acid to form the unsaturated polyester and then forming a solution thereof in a vinyl monomer. The invention also includes the method of maintaining a comestible at a desired temperature using such device.
Patent CA-2146849-C (CA)
Title: Compact water filtration and purification pump
Inventor: PLATTER SANFORD
IPC: B01D35/26
Filed: 1993-02-05
Granted: 2001-04-17
Abstract: A portable, manually-operated water filtration pump (10) for purifying water. The pump includes an inexpensive, disposable filter cartridge which can be easily changed when the filter elements are no longer effective. The pump (10) uses a lever (22) to actuate a double-acting piston. The lever (22) is collapsible to one side of the pump (10) for compact storage. The filter cartridge is a tubular cylinder having an inner bore forming the pump cylinder. A cylindrical mechanical filter is concentric with and adjacent to the inner bore to filter out particulates larger than .3 microns. A fluidized granular activated charcoal filter surrounds the mechanical filter to absorb chlorine and chlorino-related compounds such as herbicides and pesticides. The pump (10) pumps filtered water into a bottle adaptor (62) which will fit most standard water containers. A prefilter (70) is provided to screen out large particulates from the pump (10) to enhance the life of the filter elements. The prefilter (70) is shaped such that it will sink in water sources and to keep the prefilter inlet upright in still water or downstream in moving water.
Patent CA-2152447-C (CA)
Title: Filled polyphthalamide blends having improved plating characteristics and plated articles therefrom
Inventor: MYERS CHARLES L
IPC: C08L77/00
Filed: 1995-06-22
Granted: 2006-06-06
Abstract: Platable blends comprising filled high-temperature polyamides and a minor amount of silicone oil exhibit substantial improvement in plating adhesion when further compounded with a plating adhesion promoter, more particularly a rubbery olefinic polymer having reactive functionality.
Patent CA-2152543-C (CA)
Title: Color changing pan paint compositions
Inventor: MILLER RICHARD E
IPC: C09D11/02
Filed: 1995-06-23
Granted: 2000-01-04
Abstract: Pan paints and associated color-changing systems are disclosed.  In a first embodiment, the color-changing system comprises an undercolor pan paint coloring composition comprising an undercolor dye whose coloring ability is destroyed in the presence of a pH of about 10 or greater and / or in the presence of a reducing agent; and an overcolor composition comprising a colorant capable of maintaining its characteristic color in the presence of a pH of about 10 or greater and / or in the presence of a reducing agent, and a base such that the pH of the overcolor composition is about 10 or greater and / or a reducing agent.  In a second embodiment, the color-changing system comprises an undercolor coloring composition comprising an undercolor dye whose coloring ability is destroyed in the presence of a pH of about 4 or less; and an overcolor coloring composition comprising a colorant capable of maintaining its characteristic color in the presence of a pH of about 4 or less and an acid such that the pH of the overcolor coloring composition is about 4 or less; wherein one or both of the coloring compositions is a pan paint.
Patent CA-2159191-C (CA)
Title: Aluminum alloy brazing sheet
Inventor: GRAY ALAN
IPC: B23K35/02
Filed: 1994-04-05
Granted: 2005-06-07
Abstract: Aluminium brazing alloy composition is (in wt%): Mn 0.7 - 1.5, Cu 0.5 - 1.0, Fe not more than 0.4, Si not more than 0.15, Mg up to 0.8, V and/or Cr up to 0.3, Ti up to 0.1, others up to 0.05 each, 0.15 total, balance Al of at least commercial purity. Improved properties include: post-brazed strength and sag resistance; corrosion resistance;  ability to withstand interannealing and some homogenisation.
Patent CA-2161416-C (CA)
Inventor: DIAMOND CHARLES M
IPC: B01J20/28
Filed: 1995-03-23
Granted: 2000-09-12
Abstract: The present invention provides a sorbent with a high pickup ratio (> 30 to 1) that has environmental benefits relating to renewable resource use of waste material as primary ingredients and is biodegradable; that is suitable for use on water and on land in a wide variety of forms; that is fire retardant (13); that incorporates a manufacturing process resulting in a finished product of low embodied energy; and results in a sorbent that is uncommonly simple, inexpensive and effective.
Patent CA-2162135-C (CA)
Inventor: HOLLIS C GEORGE
IPC: C07C13/273
Filed: 1993-05-14
Granted: 2002-01-15
Abstract: A method for inhibiting the growth of microorganisms in which an N-dodecyl heterocyclic compound in an amount effective to inhibit the growth of microorganisms is contacted with an aqueous system susceptible to such growth.  N-dodecyl heterocyclic compounds are also shown to be useful as microbicides in the inhibition of the formation of slime in aqueous systems or the deterioration or disfigurement of susceptible substances due to microbiological growth.  Microbicidal compositions containing N-dodecyl heterocyclic  compound in a non-pharmaceutically acceptable carrier are also described.
Patent CA-2164753-C (CA)
Title: Organoaluminoxy product, catalyst systems, preparation, and use
Inventor: GEERTS ROLF L
IPC: C08F4/60
Filed: 1995-12-08
Granted: 1999-01-19
Abstract: In accordance with the present invention, there is provided an organoaluminoxy product prepared by the process comprising reacting an organoaluminoxane with an ene-ol compound. In another embodiment, the organoaluminoxane can be prepared in situ by the process comprising reacting a hydrocarbylaluminum compound, water, and the ene-ol compound. Further there is provided olefin polymerization catalyst systems comprising the organoaluminoxy product and at least one transition metal-containing catalyst. Optionally, the catalyst system is prepolymerized in the presence of at least one olefin to form a prepolymerized catalyst system. Still further there is provided processes for the polymerization of olefins using the catalyst systems.
Patent CA-2165312-C (CA)
Title: Method and apparatus for attaching a web of material to the side edges of an absorbent article
Inventor: MCFALL RONALD RAY
IPC: A61F13/15
Filed: 1994-06-08
Granted: 1999-07-27
Abstract: A method is disclosed for attaching an elas tomeric film laminate web to the longitudinal side edges of an absorbent article such as a sanitary nap-kin. The method involves using a system of different adhesive applying mechanisms (that is, glue guns) and different applications of adhesive in a spiral pat-tem to provide precise control over the pattern and the amount of adhesive applied to bond the web of material to the absorbent article. The method com-prises applying a narrow spiral of adhesive to a first portion of the width of the web that is adjacent a first edge of the web; bringing the first portion of the web into contact with a first face of the sanitary nap-kin so that the remaining portion of the web extends outward beyond the edge of the sanitary napkin; ap plying a second narrow spiral of adhesive to a second portion of the width of the web adjacent the second edge of the same; folding the second portion of the width of the web onto the second face of the sanitary napkin to wrap the edge of the sanitary napkin; and securing the wrapped web to the sanitary napkin.
Patent CA-2166796-C (CA)
Inventor: BLAKENEY ROBERT D II
IPC: H04W4/00
Filed: 1995-06-14
Granted: 2007-01-16
Abstract: A method and apparatus for negotiating service configuration in a digital communication system is disclosed. In an exemplary embodiment, the service negotiation system is implemented in a wireless spread spectrum communication system. The service configuration comprises data rates, frame formats and types of services. Types of service may include speech encoding, facsimile or digital data services. Further described herein is a digital transmitter and receiver using the service negotiation system to provide service configuration mutually acceptable at both ends of a communication link. An apparatus for transmitting a service negotiation message is described comprising service negotiator (20) for providing a message indicative of a requested service configuration, and transmitter (26) for transmitting the service request message. Also, described is a system for receiving a service negotiation message comprising receiver (34) for receiving a transmitted message indicative of a requested service configuration, and a service negotiator (40) for determining in accordance with a predetermined set of parameters a response message to the request message.
Patent CA-2168325-C (CA)
Inventor: BOTTE LUC
IPC: C25B9/00
Filed: 1996-01-29
Granted: 2007-03-20
Abstract: End section for an electrodialysis machine comprises a vertical plate (8) and frame (9) forming a cavity between them containing an electrode and connected to an inlet pipe (23,26) and an outlet pipe (22,24) for the electrolyte. The electrode is a vertical perforated metal sheet (12) positioned to form a chamber (21) between the plate, the sheet and the frame. This chamber is divided into vertical channels (27,28) by vertical partitions (29) and the inlet and outlet pipes open into this chamber. Electrodialysis machine containing a succession of vertical frames and membranes selectively permeable to ions, between two end sections is also claimed.