baber/WOPTO huggingface dataset:
Patent CA-2226957-A1 (CA)
Title: Head device including drive ics enclosed by protective coating and method of forming the protective coating
Inventor: NAGAHATA TAKAYA
IPC: B41J2/345
Filed: 1997-05-29
Abstract: A head device (10), in particular a thermal printhead, is provided which includes an insulating substrate (11) having a first longitudinal edge (11a) and a second longitudinal edge (11b) opposite to the first longitudinal edge (11a), an operating element (12) arranged on the substrate adjacent to the first longitudinal edge (11a), an array of plural drive ICs (13) arranged on the substrate (11) along the second longitudinal edge (11b) for actuating the operating element (12), and a protective resin coating (17) for enclosing the drive ICs (13). The protective coating (17) includes a terminal protrusion (17a) which is made at the time of forming the protective coating (17) by resin application. The terminal protrusion (17a) is located between two adjacent drive ICs (13) and projects toward the second edge (11b) of the substrate (11).
Patent CA-2228173-A1 (CA)
Inventor: ROBERTS LLOYD E
IPC: A47K11/00
Filed: 1998-01-27
Abstract: A toilet liner for low water volume toilets includes a biodegradable flexible base and biodegradable pleated collar. The base, which may be perforated, is shaped to lie flush against an interior surface of the low water volume toilet corresponding to a flushing aperture of the low water volume toilet. The pleated collar is mounted or formed contiguously around the base and the pleated collar is formed so as to have generally vertically extending pleats in the collar, extending between the base and an upper inclined circumferential edge of the collar, inclined between a lower front edge of the inclined circumferential edge and an elevated rear edge of the inclined circumferential edge, elevated above the lower front edge, the collar flared upwardly from, and radially outwardly of, the base.
Patent CA-2228639-A1 (CA)
Title: Asphalt composition ridge covers with three dimensional effect
Inventor: FREIBORG BEN
IPC: E04D1/26
Filed: 1998-02-03
Abstract: An asphalt composition ridge cover providing a three dimensional character to a roof is disclosed. The ridge cover is characterized as having a thickening member or members thereunder giving the ridge covers a tapered thickness which, when installed, gives the resulting roof a pronounced three dimensional appearance. The thickening member is made from used and scrap asphalt roofing materials which are ground up and heated for forming as desired. Preferably the ridge covers are manufactured and packaged in an approximately 90 degree "V" shape so as to require very little bending during installation. Details and alternate embodiments are disclosed.
Patent CA-2232848-A1 (CA)
Title: Structural laminated wood and construction members for framework structures of buildings
Inventor: KIMURA KAZUYOSHI
IPC: E04B1/26
Filed: 1998-03-23
Abstract: With a structural laminated wood (L.V.L) made up by laminating and bonding a plurality of wood laminas, the wood laminas are respectively formed in an approximate L-shape or U-shape in one plane, and the structural laminated wood is formed in an approximate L-shape or U-shape having two side portions of predetermined lengths approximately at right angles to each other. Moreover, with a construction member for a framework structure for buildings, where the construction member uses the structural laminated wood, one side portion of the structural laminated wood is made at least a part of a vertical construction member, and the other side portion is made at least a part of a transverse construction member.
Patent CA-2233901-A1 (CA)
Title: Apparatus and method for counterboring a pipe
Inventor: DIERLAM OLIVER TRUEMAN
IPC: B23B5/16
Filed: 1998-04-02
Abstract: An apparatus (20) for counterboring a pipe (25) includes an expander unit (24), a shaft (26) extending from the expander unit, a flywheel (30) rotatably and slidably mounted on the shaft, a frame (34) mounted on the flywheel to be movable in a radial direction, a tool mount (50) and a guide wheel mount (52) formed on the frame, the tool mount traveling with the flywheel into the interior of the pipe during counterboring and the guide wheel mount traveling outside of the pipe during counterboring, the guide wheel mount being connected to the tool mount by guide wheel arm (51) having a radial member (54) that is axially offset to the rear of the tool mount by a distance at least the length of the counterbore to be machined in the pipe, a cutting tool (56) adjustably mounted to the tool mount, a guide wheel (72) rotatably mounted on the guide wheel mount, an inward force applying member (116) and an outward force applying member (122) connected between the flywheel and the frame such that the frame can be moved and biased with respect to the flywheel, the radially innermost point of the guide wheel being radially spaced apart from the cutting tool to define the wall thickness of the counterbore to be machined into the pipe.
Patent CA-2237460-A1 (CA)
Inventor: YEAP TET HIN
IPC: H04B1/12
Filed: 1998-05-13
Abstract: A noise suppression circuit for a two-wire communications channel comprises a hybrid device, for example a hybrid transformer or circuit, for providing a differential mode signal corresponding to a differential signal received from the two-wire channel. A summing device extracts from the two-wires of the channel a common mode signal and supplies it to a noise estimation unit which derives from the common mode signal an estimate of a noise level in at least one frequency band having a bandwidth considerably narrower than an operating bandwidth for the channel. The noise estimation unit adjusts the amplitude of the noise estimate to correspond to the residual noise in the differential mode signal and subtracts it from the differential mode signal to produce a noise-suppressed output signal. A noise detection and control unit scans the opperating band, identifies a frequency band having an instant highest noise level, and sets the noise estimation unit to the detected noisy band. The noise estimation unit suppresses the noise in that band. In preferred embodiments, the noise estimation unit comprises several channels, each comprising a tunable filter, a phase shifter and an amplifier, and the noise detection and control unit sets the channels, in succession, to different frequency bands in descending order of noise level. The noise detection and control unit may cross-correlate the common mode signal and the noise-suppressed output signal and adjust the amplification of the noise estimation signal to reduce residual differential mode noise substantially to zero.
Patent CA-2238521-A1 (CA)
Title: Diaminopyrimidines, pharmaceutical compositions containing them and their use as antibacterial
Inventor: MASCIADRI RAFFAELLO
IPC: C07D239/49
Filed: 1996-11-22
Abstract: Diaminopyrimidines of general formula (I) wherein either R1 signifies straight-chain C5-10-alkyl, branched C3-5-alkyl, C3-6-cycloalkyl or C3-5-.omega.-carboxyalkyl and R2 and R3 signify C1-5-alkyl; or R1 signifies hydrogen, R2 signifies C3-5-.omega.-carboxyalkyl and R3 signifies C1-5-alkyl; and their pharmaceutically acceptable acid addition salts have antibiotic properties and can be used in the control or prevention of infectious diseases.
Patent CA-2238718-A1 (CA)
Title: Backing plates for abrasive disks
Inventor: VAN OSENBRUGGEN ANTHONY ALFRED
IPC: B24D7/10
Filed: 1996-11-21
Abstract: Accessories for an angle grinder include a resilient backing plate for use with an abrasive disk having shaped ventilating and viewing apertures. The apertures of the backing plate correspond to those on the disk and are shaped so that snagging of the apertures on projections from the work surface is minimized and to facilitate air flow across the work surface during use. This air flow helps in cooling the work and ejecting detritus, so minimising clogging effects. The ventilating apertures also facilitate viewing the work to be sanded through the spinning disk during the abrasion process, so that operator feedback is immediate. The holes also give the backing plate more resilience so that a greater area of the abrasive disk can come in contact with the work and the disk wears more evenly over its abrasive surface.
Patent CA-2240510-A1 (CA)
Title: Shock absorber with longitudinal axis and laminating channel
Inventor: PERRET JEAN-PIERRE
IPC: F16F9/34
Filed: 1996-12-09
Abstract: A shock absorber (1) having a longitudinal axis of rotation (XX') comprises a shock absorber body (2), a principal piston (4), which is supported by a piston rod (5), and a principal compression chamber (3), in which the principal piston (4) slides. The piston (4) divides the interior of the chamber (3) into a front internal portion and a rear internal portion. The sliding occurs wit the compression of the shock absorber (1) from the front to the rear internal portion. Further, the shock absorber (1) includes an elastic return device (8), a volume compensation device (9), hydraulic fluid (7), and at least one rolling channel. The rolling channel is comprised of at least one portion of the internal surface of the peripheral wall of the principal compression chamber (3) and at least one portion of the external wall of the principal piston (4).
Patent CA-2240706-A1 (CA)
Title: Production of direct reduced iron with reduced fuel consumption and emission of carbon monoxide
Inventor: DING MAYNARD GUOTSUEN
IPC: C21B13/10
Filed: 1998-06-15
Abstract: A system for producing direct reduced iron wherein iron oxide material and carbonaceous material is passed successively through an oxidizing zone and a reducing zone of a furnace, each zone fired by oxy-fuel combustion, enabling a reduction in the amount of fuel needed to process the material while generating sufficient carbon monoxide to effect the reduction and ensuring that little or no carbon monoxide is emitted from the furnace.
Patent CA-2242409-A1 (CA)
Inventor: HATA KAZUHIKO
IPC: C08F20/40
Filed: 1997-01-16
Abstract: Vinyl monomers having polyenic side chains derived from highly unsaturated fatty acids represented by general formula: R1COOH (wherein R1 is a C9-C25 hydrocarbyl having 3 to 6 unsaturated bonds) and derivatives thereof. Such a vinyl monomer can be prepared by, e.g., reducing docosahexaenoic acid (DHA) into an alcohol either directly or through several reaction steps and reacting the alcohol with acryloyl chloride. These vinyl monomers can be polymerized by the use of various polymerization initiators. Alternatively, they can also be copolymerized with other monomers. Thus the present invention provides vinyl monomers having polyenic side chains derived from highly unsaturated fatty acids and polymers thereof; polymers having, in the side chains, double bonds into which various functional groups can be introduced; and a useful method for utilizing the fatty acid esters remaining as the residue in the distillation of fish oils.
Patent CA-2244956-A1 (CA)
Title: Electromagnetic high-frequency or microwave apparatus
Inventor: WU JENG-MING
IPC: H01J37/32
Filed: 1997-01-31
Abstract: The invention concerns an electromagnetic high-frequency or microwave apparatus comprising a treatment chamber (6) with a transfer wall (7, 7', 7") which allows electromagnetic waves to pass through to an adjacent chamber (4) and is designed to influence the intensity distribution of the transfer of the electromagnetic waves into the treatment chamber (6). The apparatus according to the invention enables the intensity of the transferred waves to be controlled with low losses in that the transfer wall (7, 7', 7") comprises a plurality of rod-shaped antenna elements (10, 10') oriented at an angle to the plane of the wall of the adjacent chamber (4), the antenna elements (10, 10') projecting centrally through through-openings (14, 14') delimited by electrically conductive material.
Patent CA-2245388-A1 (CA)
Inventor: F RTHMANN PETER
IPC: B63B17/00
Filed: 1998-08-20
Abstract: A mounting device for mounting a self-steering system on the stern ( 40) o f a boat at a predefined angle determined from the stern configuration and a desired inclination of the self-steering system, comprises a supporting structure (10) for retaining and connecting the self-steering system with a pair of mounting brackets ( 20A, 20B) for retaining and connecting the supporting structure (10) with the stern of a boat ( 40), in which the mounting brackets ( 20A, 20B) have two first elongated holes (21, 22) extending along at least one approximately circular line for clamping the supporting structure (10) fast with at least four threaded bolts or the like such that its angle can be adjusted.           In order to reduce the number of components specially tailored for actual sterns and for the desired installation position to a minimum, a pair of elongate, plate-like adaptor pieces ( 30A, 30B, 30C, 30D) is provided, said adaptor pieces each being suitable for releasable connection at one end with one of the mounting brackets ( 20A; 20B ) and at the other end with the supporting structure (10) and for this purpose having, in a first longitudinal area (38), at least two first elongated holes  (31, 32) extending essentially transverse to the long direction (L) of the plate-like adaptor piece and "congruent" with the elongated holes (21, 22) of the connecting bracket and, in a second longitudinal area (39), at least two second elongated holes (42A, 42B) extending essentially in the long direction (L) and arranged essentially parallel with each other.
Patent CA-2246451-A1 (CA)
Title: Energy guide chain with guide stop
Inventor: BLASE GUENTER
IPC: F16G13/16
Filed: 1997-02-10
Abstract: The invention relates to an energy guide chain (1) for cables and the like, the chain members (2) thereof comprising opposing side walls (4) and upper and lower transverse members (5) or walls connecting said side walls, and being flexibly connected to each other. The energy guide chain forms a lower, substantially linear section (lower strand 6) to which a sagging upper region (upper strand 8) is attached by means of a turnaround region (7) covering more than 180~, the lower side of the upper strand (8) sliding at least partially on the upper side of the lower strand (6). Individual chain members (2) are provided with guide stops (9) which prevent lateral movement of the opposite strand. According to the invention, the guide stops (9) are in the form of members extending in the longitudinal direction of the chain, and at least one guide stop (9) on the chain members (2) of the one strand (6 or 8) engages between two guide stops (9) on the chain members (2) of the opposite strand (8 or 6). Consequently, the engaged chain members (2) are prevented from moving transversely in relation to each other.
Patent CA-2247299-A1 (CA)
Title: Sports shoe cleats
Inventor: CARROLL FRANCIS C
IPC: A43C15/02
Filed: 1998-02-20
Abstract: A golf shoe cleat (10) has a main body member (11) having a dome-shaped outer face (12) and a planar inner face, a threaded stud (17) molded integrally with the main body member (11). A plurality of pseudo pyramid-shaped teeth (15) projecting around the perimeter of the main body member, each having an outward angle.
Patent CA-2249249-A1 (CA)
Title: Fluid inlet device
Inventor: LESLIE BRUCE A
IPC: F17C5/02
Filed: 1998-10-05
Abstract: An inlet device is taught for use in conveying a fluid. The inlet device includes a tube having a sidewall, an inlet and a perforation through the tubes sidewall. A  ball formed from an energy absorbing material is retained in the tube's inner bore. The inlet device acts to reduce the abrasive effects of the fluid by reducing its velocity and by reducing its kinetic energy.
Patent CA-2252385-A1 (CA)
Title: Piperidines and pyrrolidines
Inventor: HARTING JUERGEN
IPC: C07D211/14
Filed: 1997-04-14
Abstract: The invention relates to novel piperidine and pyrrolidine derivatives of formula (I) in which R1, R2, R3, k, l, m and n have the meanings indicated in Claim 1, and their salts, novel intermediates and processes for the preparation of the compounds according to the invention. The compounds of formula (I) act as 5-HT1A receptor antagonists and exhibit 5-HT reuptake-inhibiting actions and can be used for the production of medicaments.
Patent CA-2257690-A1 (CA)
Inventor: PATEL DHANRAJ SHANTILAL
IPC: A61F13/15
Filed: 1997-06-10
Abstract: A disposable absorbent article such as an incontinence pad that is both comfortable and suitable for absorbing and containing large volumes of body liquids rapidly without leakage, especially a subsequent gush of liquid. The absorbent article has a pair of end regions, and a central region disposed between the end regions. The central region includes a pair of spaced apart longitudinal side portions and a central portion disposed between the longitudinal side portions. The absorbent article includes a liquid pervious topsheet, a liquid impervious backsheet joined to the topsheet, an absorbent core positioned between the topsheet and backsheet, and an acquisition component positioned between the topsheet and the absorbent core. The acquisition component has a total void volume. The portion of the acquisition component with the central region provides at least about 50 % of the total void volume of the absorbent article. A portion of the absorbent core is folded upon the acquisition component along a first pair of generally parallel longitudinally extending fold lines to form a pair of resilient absorbent members which encapsulate the acquisition component within the longitudinal side portions. The resilient absorbent members are arranged in a longitudinally spaced relation to each other between the acquisition component and the topsheet. The absorbent article has a total absorptive capacity. The central region provides at least about 50 % of the total absorptive capacity and the longitudinal side portions provide at least about 70 % of the central regions absorptive capacity.
Patent CA-2259461-A1 (CA)
Inventor: MATHY WOLFGANG
IPC: C01G39/06
Filed: 1997-07-01
Abstract: The invention concerns a process for preparing pure alkali and/or ammoniumtungstate solutions in particular from alkali tungstate solutions contaminated with silicon, phosphorus, arsenic, tin, antimony, vanadium, tantalum, niobium, titanium and molybdenum. The solution is acidified and the precipitate produced without the addition of precipitating agents or auxiliary agents is then filtered.
Patent CA-2259529-A1 (CA)
Title: Method of processing polyethylene and polyethylene/elastomer blends
Inventor: SCHMIEG JOEL E
IPC: C08J5/00
Filed: 1997-08-06
Abstract: Melt processed linear polyethylenes which may optionally contain an elastomer are shown to exhibit improved processability through the addition of certain surfactants. Among the melt processing parameters improved are reduced head pressure, reduced torque, reduced motor load, reduced or eliminated melt fracture, or combinations of these parameters. The surfactants can be chosen from a non-aromatic sulfonate or sulfate salt wherein a cation of the salt is selected from the group consisting of Na, K, Li, and other alkali cations and quaternary ammonium cations, said surfactant being essentially free of halogens.
Patent CA-2262189-A1 (CA)
Title: Fastening structure for fuel cell
Inventor: SUGITA NARUTOSHI
IPC: H01M8/24
Filed: 1999-02-16
Abstract: A fuel cell stack has a plurality of fuel cells, separators sandwiching each of the fuel cells, and first and second end plates disposed on respective opposite ends of the plurality of fuel cells. A fastening structure incorporated in the fuel cell stack has a liquid chamber disposed on an outer surface of the first end plate, a silicone oil filled in the liquid chamber, and a pressurizing mechanism disposed on an outer surface of the second end plate, for pressing the fuel cells toward the first end plate. The plurality of fuel cells is given a uniform surface pressure, and can be reduced in weight and made compact.
Patent CA-2263136-A1 (CA)
Inventor: PRISBE ERNEST J
IPC: B05B7/12
Filed: 1997-08-22
Abstract: The present invention provides new synthetic methods and compositions. In particular, new methods of preparing intermediates such as those having formulas (I)-(IV), such as those having formulas (I)-(IV), useful in the synthesis of neuraminidase inhibitors and compositions useful as intermediates that are themselves useful in the synthesis of neuraminidase inhibitors are provided.
Patent CA-2264380-A1 (CA)
Title: Coupling means for building block
Inventor: WILLEMSEN THOMAS
IPC: A63H33/06
Filed: 1999-03-03
Abstract: A building block is provided with coupling means on the upper and lower faces allow the blocks to be interconnected to form structures. The coupling means includes protrusions on one face and a set of sockets or receptacles sized to engage the protrusions formed on the opposite face. The sockets are preferably laid-out in two cross-like formations of four sockets each and optionally may include a further two central sockets disposed between the two cross-like formations.
Patent CA-2264933-A1 (CA)
Title: Process for preparing 2-phenyl-3-naphthylpropionic acid derivatives
Inventor: YOKOYAMA YUKIO
IPC: C07C255/52
Filed: 1997-09-05
Abstract: A process for preparing compounds represented by general formulae (5) and (6) in the following reaction scheme or salts thereof, wherein R1 represents a nitrogen protective group; R2 represents a methanesulfonyl or ptoluenesulfonyl group; R3 represents a hydrogen atom, an aralkyl group, or an alkyl group having 1 to 6 carbon atoms, and X represents a halogen atom. The above process is useful as a commercial process for preparing intermediates of anticoagulant aromatic amidine derivatives described in Japanese Patent LaidOpen No. 208946/1993.
Patent CA-2265598-A1 (CA)
Title: Method for dehydrating wet coal
Inventor: DEAN MILES W
IPC: C10F5/00
Filed: 1997-09-09
Abstract: A process is described whereby wet coat may be dehydrated and inhibited against rehydration by immersing in a bath of molten paraffin hydrocarbon (14) for a sufficient period of time to evaporate and expel inherent water from the coat. The hydrocarbon then inhibits any rehydration period. It is also an embodiment of this invention to describe a process whereby the water expelled may be recovered for useful purposes.
Patent CA-2269573-A1 (CA)
Title: Cross-dimerization of olefins
Inventor: HAUPTMAN ELISABETH MURIEL
IPC: C07C67/347
Filed: 1997-09-18
Abstract: Disclosed is a process for the production of chemical intermediates by the cross dimerization of two compounds containing carbon-carbon double bonds, wherein said process is catalyzed by a nickel II catalyst which is a complex with ??3¿ carbon-based allyl or substituted allyl, trisubstituted phosphine, and a weakly coodinating ligand. This catalyst may be used to selectively cross-dimerizes ethylene and methyl acrylate to give methyl 4-pentenoate, a nylon 6,6 intermediate.
Patent CA-2270784-A1 (CA)
Title: Satellite communication system for media broadcasting and of multimedia data
Inventor: GAYRARD JEAN-DIDIER
IPC: H04N7/16
Filed: 1999-05-04
Abstract: The system comprises transmitters (E1, E12, En) transmitting programs or multimedia data to a satellite (SAT), each program being transmitted on an uplink frequency channel, and program multiplexing (MB1) means onboard the satellite receiving programs and routing them onto a single downlink frequency channel. A configuration station on the ground (En) comprises means for transmitting system data (SPn) on an uplink frequency channel and configuration means onboard the satellite selectively associate uplink frequency channels and a downlink frequency channel in response to some of the received system data.