baber/WOPTO huggingface dataset:
Patent CA-2217562-A1 (CA)
Title: Mineral fiber composition
Inventor: STEINKOPF BERND
IPC: C03C13/06
Filed: 1997-02-06
Abstract: Mineral fiber composition which is decomposable in the physiological medium, characterised by the following constituents in weight percent: SiO2 30 to less than 51; Al2O3 higher than 11.5, in particular higher than 13, up to 25; CaO 2 to less than 23; MgO 0 to 15; Na2O  + K2O higher than 10, up to 19; TiO2 + Fe2O3 6 to 18; various 0 to 3.
Patent CA-2217712-A1 (CA)
Inventor: SHARP GARY D
IPC: G02F1/13363
Filed: 1996-04-01
Abstract: This invention provides achromatic liquid crystal compound retarders, achromatic polarization switches, and achromatic shutters using the liquid crystal compound retarders. It further provides achromatic variable retardance smectic liquid crystal retarders. The compound retarder of this invention comprises a central liquid crystal retarder unit and two external passive retarders positioned in series with and on either side of the liquid crystal retarder unit. The liquid crystal retarder unit comprises either (1) a rotatable smectic liquid crystal half-wave retarder, or (2) first and second liquid crystal variable retarders having retardance switchable between zero and half-wave. The external passive retarders are equal in retardance and orientation to each other. Design equations determine the retardance of the external elements and their orientation relative to the central retarder to obtain a particular achromatic retardance for the compound structure.
Patent CA-2218472-A1 (CA)
Title: Mixing and dispensing apparatus
Inventor: KEENAN RICHARD SR
IPC: B01F7/02
Filed: 1996-04-19
Abstract: A mixer feeder wagon (1) for mixing animal feed which comprises hay, straw, silage and the like, comprises a mixing compartment (20) and a dispensing compartment (21). A mixing rotor (30) is rotatable in the mixing compartment (20) for mixing the animal feed, and a dispensing auger (38) in the dispensing compartment (21) dispenses the mixed animal feed through a dispensing outlet (22). A plurality of first blades (55) extend radially from mixing paddles (47) of the mixing rotor (30) and co-operate with a plurality of second blades (56) which are mounted on a base (12) of the mixing compartment (20) for cutting the fibrous material of the animal feed into relatively short lengths as the mixing rotor (30) rotates.
Patent CA-2218473-A1 (CA)
Title: Hoistway door seal structure
Inventor: ALLEN THOMAS H
IPC: B66B13/30
Filed: 1996-04-04
Abstract: A hoistway door seal structure for limiting the flow of air through a hoistway opening when the door is closed. The hoistway door seal structure includes a hoistway door that covers a hoistway entrance defined by an opening in a hoistway wall structure. An elongated door support member is connected to the wall structure and is positioned in a generally horizontal orientation above the hoistway entrance. A seal structure is supported between the hoistway door and the wall structure. A door support is connected to the hoistway door and is movably connected to the elongated support member to support the door while permitting movement of the door in a lateral direction between an open position permitting access to the hoistway and a closed position wherein the door substantially covers the hoistway entrance with a space between the hoistway door and the wall structure. The elongated support member includes a guide portion that guides the hoistway door, as the hoistway door is moved to the closed position, in a second direction toward the seal structure. The second direction being different than the lateral direction such that the hoistway door sealably engages the seal structure to seal the space between the door and the wall structure when the door is closed.
Patent CA-2219207-A1 (CA)
Inventor: RUSSELL LYNN A
IPC: F15B11/16
Filed: 1996-04-02
Abstract: An improved pressure-compensated hydraulic system for feeding hydraulic fluid to one or more hydraulic actuators. A remotely located, variable displacement pump provides an output pressure equal to input pressure plus a constant margin. A pressure compensation system requires that a load-dependent pressure be provided to the pump input through a load sense circuit. A reciprocally spooled, multi-ported isolator transmits the load-dependent pressure to the pump input but prevents fluid in the load sense circuit from leaving the load sense circuit and flowing through a relatively long conduit leading to the remotely located pump. In a multi-valve array, at least one valve section has a backflow-preventing shuttle valve which prevents backflow through the pressure compensation system if a main relief valve is operative.
Patent CA-2221942-A1 (CA)
Inventor: TRAPP NORBERT
IPC: H01H33/70
Filed: 1996-05-15
Abstract: L'invention concerne un élément (9) isolant pour appareils haute tension, à utiliser dans des installations isolées par du gaz, notamment une buse en matériau isolant (9) pour sectionneur de puissance haute tension. Selon l'invention, il est prévu que les zones (10) superficielles particulièrement sollicitées sur le plan diélectrique présentent une rugosité plus marquée (par exemple par rainurage) que les zones superficielles moins sollicitées sur le plan diélectrique.
Patent CA-2221999-A1 (CA)
Title: Error-proof security device for a lock fitting on a door or window leaf
Inventor: STRASSEL RICHARD
IPC: E05D15/526
Filed: 1997-11-17
Abstract: The safety device comprises a spring-loaded locking pin (13) inside a cover (5) on a fixed or opening frame (2), which engages when released with a hole in the door or window fastening mechanism (8), e.g. in the form of a sliding bolt. When the moving panel of the door or window is closed the locking pin is withdrawn from the fastening mechanism by a control member (22) which fits under the head of the pin, allowing the fastening mechanism to be operated.
Patent CA-2227398-A1 (CA)
Title: Apparatus and process for electrodialysis of salts
Inventor: MANI K N
IPC: B01D61/48
Filed: 1998-01-19
Abstract: An apparatus and process produces salts by an electrodialysis operation. The basic electrodialysis apparatus is a cell having a number of compartments separated by ion exchange membranes. A DC source is connected to drive a current through a feed stream passing through the cell which splits the salt stream into an acid and a base. The incoming feed may be nanofiltered to remove divalent metal. The base loop may be in communication with an ion exchange column packed with a material that removes multivalent cations. Monovalent selective cation membranes may be used to effect preferential treatment of the monovalent cations to the base loop. Depending upon the material being processed and the desired end result either or both the nanofiltration and the ion exchanged column may be used in the apparatus.
Patent CA-2227804-A1 (CA)
Title: Photodiode module and method of making same
Inventor: KUHARA YOSHIKI
IPC: G02B6/42
Filed: 1998-01-23
Abstract: This invention provides an analog PD module useful for a large number of channels and a digital PD module useful for a large power signal input because of its reduced distortion. The PD chip is fixed at a spot deviating by Ltan.alpha. from the lens center in the direction of a projection of a vector TS from the highest edge (T) to the lowest edge (S), where L is the distance between the lens center and the PD. The fiber should deviate in the contrary direction. The orientation enables a beam emanating from the fiber end to pass the center of the lens and reach the PD by spreading on a direct line.
Patent CA-2228672-A1 (CA)
Title: Blow molded brushware and method of fusing the same
Inventor: LEWIS JOHN C JR
IPC: A46D3/04
Filed: 1998-03-11
Abstract: A method for fusing brushware on a thin walled, molded hollow plastic synthetic container is described. Tufts of synthetic materials are picked and non-working ends thereof fused. The hollow bottle is molded with protrusions extending from a surface thereof with one protrusion intended to received each fused tuft end. The protrusions then are heat softened to form a melted section of synthetic surface wherein the fused tuft end can be mounted. The result is a hollow container having tufts extending from the outer surface thereof, integral with the container without distorting the thin wall thereof by the fusing process.
Patent CA-2230394-A1 (CA)
Title: Transferring device for optical discs being processed in a disc manufacturing assembly, disc manufacturing assembly incorporating the transferring device and associated transferring method
Inventor: PEREGO LUCIANO
IPC: B29D17/00
Filed: 1998-02-24
Abstract: A transferring device which operates on an apparatus for producing optical discs comprising several different work stations, each arranged to perform a predetermined operation on the discs being processed.  The transferring device performs a sequential transfer of each disc between the different work stations following a path comprising two parallel advance lines, one forward line and one return line, respectively, which are disposed laterally on opposite sides relative to the longitudinal extension axis of a support arm.  The support arm supports a first and a second series of pick-up heads arranged to execute the optical disc transfer on the forward and return lines during the forward and return strokes of the support arm, respectively.
Patent CA-2233573-A1 (CA)
Inventor: PELLICER CARLOS FRADERA
IPC: B28C5/08
Filed: 1997-07-28
Abstract: Le procédé se déroule dans une installation qui comprend un appareil d'homogénéisation (1) constitué d'un premier récipient vertical (10), ayant des agitateurs axiaux (11) et des agitateurs périphériques (12) avec des pales (15) actionnées indépendamment; un appareil de trituration (3) constitué d'un corps cylindrique extérieur statique (21) avec tétons (24) saillants de manière centripète et dans lequel est logé un corps cylindrique intérieur rotatif (25) doté de tétons saillants (24) de manière centrifuge; un mélangeur continu (4) dont la superficie interne (28) présente des sillons (29) entrecroisés et dans lequel est logé un corps cylindrique (34) dont la surface externe (30) présente des seconds sillons également entrecroisés, de sorte que tous les sillons constituent des conduits qui partent d'une chambre extrême (31) et se terminent dans une chambre extrême (32) de sortie des fluides résultants des mélanges produits; ainsi qu'un ajutage (5) d'alimentation de la pâte fine fluide, cet ajutage étant constitué d'un corps tubulaire principal (33) avec enceinte annulaire extrême (36) qui possède d'une part des secondes embouchures d'entrée (37) d'additifs et d'un fluide gazeux à pression et, d'autre part, de conduits de sortie qui débouchent dans des lumières (38) du corps tubulaire principal (33).
Patent CA-2239148-A1 (CA)
Title: Particles having a polymeric shell and their production
Inventor: LYKKE MADS
IPC: B01J13/14
Filed: 1996-12-23
Abstract: Particles have a hydrophilic core, for instance including an enzyme and a polymer, surrounded by a shell formed by interfacial condensation polymerisation in the presence of a polymeric stabiliser. Preferably the polymeric stabiliser is a random copolymer which will concentrate at the interface between oil and water and association by ionic interaction, condensation or otherwise is achieved between the stabiliser and one of the reactants before reaction with the other reactant. Dispersions of aqueous capsules in an aqueous medium are also disclosed.
Patent CA-2239249-A1 (CA)
Title: Method for elimination of effects of imperfections on color measurements
Inventor: RAPPETTE JEFFREY P
IPC: G01N21/89
Filed: 1998-06-01
Abstract: A method for monitoring the color quality of color patches printed on a web is disclosed. The method includes the steps of using an imaging device to receive light reflected from the printed image on the substrate to produce a signal. The signal is transmitted from the imaging device to a computer and processed in the computer. Processing the signal in the computer includes the steps of digitizing the signal to produce a digitized array of pixels, each pixel having an associated color value, determining a portion of the pixels within the digitized array corresponding to the color patch, determining an acceptable range of color values for the pixels in the portion of the pixels, determining for each pixel in the portion of pixels whether the color value is within the acceptable range, and computing an aggregate color value for the color patch by averaging the color values of each pixel in the portion of pixels including only those color values within the acceptable range.
Patent CA-2239710-A1 (CA)
Title: Use of 1,2,3-thiadiazole carboxylic acid (thio)esters for the control of pests and novel 1,2,3-thiadiazole carboxylic acid (thio)esters
Inventor: STENZEL KLAUS
IPC: C07D417/12
Filed: 1996-11-25
Abstract: The invention relates to the use of partially known 1,2,3-thiadiazole carboxylic acid (thio)esters of formula (I), in which R1 is hydrogen, optionally substituted alkyl or optionally substituted aryl; R2 is optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl or optionally substituted aryl; and Q is oxygen or sulphur, and the use of acid addition salts and metal salt complexes of said esters to protect plants well from attack by undesirable micro-organisms and to control animal pests. Particular 1,2,3-thiadiazole carboxylic acid (thio)esters of formula (I) are novel.
Patent CA-2239855-A1 (CA)
Title: Oxygen delignification of medium consistency pulp slurry
Inventor: MILLER WILLIAM J
IPC: D21C9/10
Filed: 1996-11-18
Abstract: An improved process is described for oxygen delignification of medium consistency pulp slurry which teaches control parameters and their resultant effect on final product characteristics. Specifically, a process is described wherein pulp slurries of from approximately eight percent to sixteen percent consistency, are heated to a temperature of at least 170 ~F and impregnated with oxygen gas and alkali to bring the slurry to a pH of from approximately 11-12.5. The slurry is mixed in a high shear mixer, for agitating mixing therein, under pressure of from approximately 20-180 psig for a first reaction time of typically 5 minutes. Additional alkali is added to the slurry to return the pH to at least 11, preferably at least 12, and the residual alkali concentration to at least 4.0 gpl at the end of the first reaction time. The temperature of the slurry is raised to at least 170 ~F followed by mixing for a second reaction time of typically 55 additional minutes.
Patent CA-2240302-A1 (CA)
Inventor: PICKERING ALAN HUGH
IPC: H01J3/02
Filed: 1998-06-11
Abstract: A grid for use in a linear electron beam tube such as an IOT or TWT includes a grid section 3 and a focus electrode 4 between which is included an accommodation portion 5. The grid is mounted in the tube by a mounting flange 6 around its outer periphery. During use, the grid section 3 becomes hot and consequently expands but the mounting flange 6 remains relatively cool being connected to a relatively massive structure. Thin flexible strips 9 of the accommodation section 5 permit movement between the mounting flange 6 and the grid section 3 due to differential thermal expansion, thus minimising distortion to the grid section which might otherwise occur if it were connected directly to the mounting flange 6 and hence fixed in its outer diameter length.
Patent CA-2241837-A1 (CA)
Title: Modular core, self-powered powerline sensor
Inventor: WIESMAN RICHARD M
IPC: G01R15/18
Filed: 1997-10-30
Abstract: A modular core, self-powered powerline sensor (10) includes a plurality of modular core elements (18, 20, 22) for disposing about an a.c. powerline (12);  a winding layer to be energized by the a.c. powerline, including a plurality of interconnected windings (24, 26, 28) disposed about each modular core element (18, 20, 22), one or more sensors (36) for sensing a condition in or about the a.c. powerline (12); and a controller (106), powered by the windings (24, 26, 28) and responsive to the sensors (36), for receiving a signal indicative of the condition sensed.
Patent CA-2243912-A1 (CA)
Title: A liquid jet head, a head cartridge, a liquid jet recording apparatus, and a method for manufacturing liquid jet heads
Inventor: TANEYA YOICHI
IPC: B41J2/16
Filed: 1998-07-27
Abstract: A liquid jet head is provided with a first bubble generating device for enabling a first flow path conductively connected with a first discharge opening to create a bubble for the formation of discharge droplet, and a second bubble generating device for enabling a second flow path conductively connected with a second discharge opening to create a bubble for the formation of discharge droplet, and comprises a substrate having the first and second bubble generating devices on the surface area shared by them for use, an orifice section provided with the first and second discharge openings sequentially in the direction intersecting the sharable surface area of the substrate, and a flow path formation section for separating each path of the first and second flow paths at least from the discharge opening to the bubble generating device thereof, at the same time, arranging at least part of the first and second flow paths to be essentially in the form of laminated layer with respect to the substrate.  With the structure thus arranged, crosswalks are prevented across each line of liquid flow paths, and also, to materialize a liquid jet head capable of making its discharge amount variable for the stabilized discharge of droplets in different amount from the plural lines of discharge openings for recording images in higher precision and quality.
Patent CA-2244310-A1 (CA)
Title: Processing edit decision list data
Inventor: SAVOIE CHARLES
IPC: G11B27/034
Filed: 1998-07-28
Abstract: A processing system for processing data representing edit decision lists having edit decisions with edit data, representing the type of edit to take place, and frame range data, representing the frames over which the edit is to take place. An input device applies input data to the processing system in response to user manipulations specifying changes in the edit data. The processing device is configured to identify an associated function of the identified edit data, calculate modifications to the range data in response to the identified function and write the modified range data to storage.
Patent CA-2246990-A1 (CA)
Inventor: AMSTUTZ PETER
IPC: B25B27/30
Filed: 1998-09-11
Abstract: A spring compressor of the type having a base, a post, upper spring mounting means fixedly mounted on the upper portion of the post, lower spring mounting means slidably mounted on the lower portion of the post, and moving means for moving the lower spring mounting means toward the upper spring mounting means to compress a spring mounted between the spring mounting means. The upper spring mounting means has spring engaging means, preferably in the form of angle iron members, for engaging the top of the spring assembly. The spring engaging means can include stop means for preventing movement of the spring assembly toward or away from the post. In place of the spring engaging means, the spring compressor can have adapters mounted on at least one of the upper and lower spring mounting means to engage portions of the side of a coil of the spring. The adapters can also be combined with the spring engaging means.
Patent CA-2247051-A1 (CA)
Inventor: BECKER BRUNO
IPC: A01M1/20
Filed: 1997-03-06
Abstract: The invention concerns a process and device for evaporating liquids, in particular formic acid for combating varroa mites in bee hives. The device reduces the various environmental influences on evaporation characteristics, extends the seasonal range and slows down the evaporation rate in the initial phase. It comprises a storage chamber (1) containing evaporation liquid (10) and a dispensing chamber (4). Both chambers (1, 4) are separated by a central partition (2) with a slit-shaped through-aperture (3) at the bottom. Within the dispensing chamber (4) a constant liquid level (8) is formed and is independent of the liquid level (7) in the storage chamber (1). Two evaporating elements (13, 11) are provided in the dispensing chamber (4), the second (11) of these elements having a rectangular recess (20). The longer limb of the second evaporating element (11) which projects over a transverse wall (6) is separated from a third evaporating element (16) by spacer elements (17) and a constant liquid flow is thereby created within the evaporating element (11).
Patent CA-2249766-A1 (CA)
Title: Biaxially oriented polyester films and their production methods
Inventor: ASAKURA MASAYOSHI
IPC: B29C55/16
Filed: 1998-10-07
Abstract: Disclosed is a biaxially oriented polyester film that is 7.0 GPa or more in either the Young's modulus in the machine direction (YmMD) or in the transverse direction (YmTD), and in the range of 55 ° or more and 85° or less in the circumferential half-width of the diffraction line from the crystal plane in the direction of the polyester's backbone chain that is determined through crystal orientation analysis by wide angle X-ray diffractometry performed while rotating the polyester film around its normal.  The film is high in rigidity in all directions within the film plane, high in tear resistance, high in dimensional stability, and resistant to deformation under load, and have very great industrial advantages as material for high-density magnetic recording media, with wide applicability as material for electrostatic capacitor, heat transfer ribbon, and base paper for thermosensitive stencil printing.
Patent CA-2251599-A1 (CA)
Title: Ethylene/alpha-olefin/diene interpolymer-substituted carboxylic acid dispersant additives
Inventor: GUTIERREZ ANTONIO
IPC: C10M129/95
Filed: 1996-05-16
Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene/alpha-olefin/diene interpolymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted interpolymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.
Patent CA-2252461-A1 (CA)
Title: Method and apparatus for treatment of air way obstructions
Inventor: EDWARDS STUART D
IPC: A61N1/40
Filed: 1997-04-15
Abstract: An apparatus reduces the volume of selected sections of a tongue. The apparatus includes a catheter means. An electrode means is at least partially positioned in an interior of the catheter means. The electrode means is configured to deliver sufficient electromagnetic energy to ablate an interior of the tongue without damaging a hypoglossal nerve of the tongue. An electrode advancement and retraction means is coupled to the electrode means to advance and retract at least a portion of the electrode means in and out of a selected tongue surface. A cabling means is coupled to the electrode means.
Patent CA-2253019-A1 (CA)
Title: Method of manufacturing electron-emitting device
Inventor: OKAMURA YOSHIMASA
IPC: H01J9/02
Filed: 1994-12-21
Abstract: An electron-emitting device having an electroconductive film including an electron-emitting region and arranged between a pair of electrodes is manufactured by forming an electroconductive film on a substrate and producing an electron-emitting region in the electroconductive film.  The electroconductive film is formed on the substrate by heating the substrate in an atmosphere containing a gasified organic metal compound to a temperature higher than the decomposition of the gasified organic metal compound.