baber/WOPTO huggingface dataset:
Patent CA-2196911-A1 (CA)
Title: Superabsorbent heart-shell structure polymers and their method of production
Inventor: COLLETTE CHRISTIAN
IPC: C08F8/00
Filed: 1997-02-05
Abstract: A super-absorbent partially crosslinked polymer has saline absorption of 50g/g, and a solid layer of the polymer has saline absorption of 20g/g and porosity of at least 500 g. Also claimed is a process for the preparation of the product using the polymer.
Patent CA-2197001-A1 (CA)
Inventor: NORRELL ANDREW L
IPC: H04L7/02
Filed: 1996-06-07
Abstract: Un dispositif électronique d'émission/réception utilise un système de synchronisation compensé dérivé de l'enveloppe pour compenser la temporisation différentielle survenant en bordure supérieure et en bordure inférieure de la bande du signal reçu. Ce dernier est divisé en un signal complexe (414) et le système de synchronisation compensé dérivé de l'enveloppe (416, 418, 420) est utilisé pour compenser l'amplitude et la distorsion du temps de propagation au niveau du signal reçu. La compensation de l'amplitude et de la distorsion du temps de propagation s'effectue à l'aide de filtres en bordure de bande se présentant de préférence sous forme de filtres à réponse impulsionnelle finie (FIR).
Patent CA-2197926-A1 (CA)
Title: Vacuum cleaner
Inventor: FUKUSHIMA SADAO
IPC: A47L5/28
Filed: 1997-02-19
Abstract: A vacuum cleaner comprising: a main body having a dust collecting chamber and a motor chamber; a cover for the dust collecting chamber; and an inlet pipe formed on the dust collecting chamber.  A lever is provided within the dust collecting chamber, the lever being swingable between a position where one end of the lever is positioned between an opening edge of the  dust collecting chamber and the cover to prevent the cover from closing and a position where the lever enables the cover to close.          It is not possible to attach the cover to  the cleaner in the state where the dust collecting bag is detached so that it is possible to securely prevent  misuse of the cleaner in the state where the dust collecting bag is not attached.
Patent CA-2198528-A1 (CA)
Title: Rotatable shuttle transfer unit
Inventor: CROREY DAVID
IPC: B62D65/18
Filed: 1997-02-26
Abstract: A rotatable shuttle transfer unit for transferring a workpiece  from a  first work station to  a  second work station along a predetermined path of travel wherein a pair of  spaced  carriages  carry  the  workpiece  along  the predetermined path of travel and rotate the workpiece from a first angular orientation to a second angular orientation with respect to an axis of rotation. Preferably,  the carriages rotate the workpiece while carrying the workpiece along the predetermined path of travel.  The carriages are transported along a guiderail which extends between the first and second work stations.  A continuous drive belt reciprocally  drives  the  carriages  along  the  guiderail wherein the continuous drive belt extends from one end of the guiderail to the opposite end of the guiderail.   A vertical lift portion reciprocally moves the workpiece in a direction substantially normal to the predetermined path of travel.  In addition, the carriages provide releasable power clamps for engaging and securing the workpiece.
Patent CA-2199831-A1 (CA)
Title: Injection means
Inventor: WHISSON MAXWELL EDMUND
IPC: A61M5/50
Filed: 1995-09-14
Abstract: An injection device comprising a hollow body (11) having a forward end (12) and a rearward end (13), the forward end (12) slidably receiving a hollow needle (15), the body (11) providing a chamber (A) between its forward end (12) and its rearward end (13), the chamber being defined between a plug (17) and a stop (18), the plug (17) being sealingly and slidably received within the body (11) adjacent the forward end (12), the stop (18) being slidably and sealingly received within the body (11) rearward of the plug (17) wherein a greater degree of effort must be applied to the stop (18) than to the plug (17) to effect slidable movement within the body, the rearward end (13) of the body having a portion (14) in which the stop (18) is not sealingly received within the body, a drive element (19) connected at one end to the plug (17) and slidingly and sealingly received through the stop (18) to extend from the rearward end (13) of the body (11), a manipulation means (20) provided on the other end of the drive element (19), the hollow interior of said needle (15) being connected to the chamber (A) through a flexible passageway (21) extending between the inner end of the needle (15) and the plug (17), said needle (15) being connected to the plug (17) or stop (18) by a tensioning means (21), a means (22) between the needle (15) and body (11) adapted to retain the needle (15) at a first position which extends from the body (11) and said means (22) being adapted to be able to release the needle (15) to allow the needle to move to a second position at which it is accommodated within the body, the movement between the first and second position being effected by the tensioning means (22).
Patent CA-2199917-A1 (CA)
Title: Method and apparatus for the inductive surface hardening of workpieces
Inventor: OTTENWAELDER ADALBERT
IPC: C21D9/30
Filed: 1997-03-13
Abstract: A method for the inductive surface hardening of a camshaft of an internal combustion engine, the workpiece having an inductor with an internal contour positioned about the workpiece. The workpiece revolving about a central axis in the interior of the inductor, a coupling distance between the workpiece and the inductor. The method comprises maintaining the coupling distance constant while maintaining the internal contour of the inductor in a line parallel to the contour of the workpiece at the point of closest proximity of the inductor and the workpiece, and rotating the workpiece about an axis at an integral transmission ratio during one revolution.
Patent CA-2200196-A1 (CA)
Inventor: ANDERSON JAMES M
IPC: A23L29/25
Filed: 1995-05-18
Abstract: L'invention concerne un mélange de polydextrose et d'un additif alimentaire. Ce mélange est solide, très homogène et micro-dispersé. Il comprend entre 70 et 99,99 % de polydextrose et entre 0,01 et 30 % d'un additif alimentaire pouvant améliorer sensiblement les caractéristiques de sensation en bouche et d'absorption d'humidité du polydextrose. L'additif alimentaire peut être un polysaccharide, une protéine, une protéine hydrolysée, un bicarbonate de métal alcalin, un émulsifiant hydrosoluble, un émulsifiant hydro-libérable ou une gomme laque. Un procédé permettant de produire un tel mélange consiste à co-évaporer à partir d'eau ou d'alcool la composition décrite.
Patent CA-2204285-A1 (CA)
Inventor: TOWNSEND PAUL NICHOLAS
IPC: A62B9/04
Filed: 1997-04-22
Abstract: A connector for connecting a breathing gas cylinder to a respiratory device is described.  Instead of the normal screw connection a bayonet fitting is used.  In embodiments, a male connector 100 is fitted to the respiratory device.  It has a stud 4 and a handwheel 8 which rotates around the stud 4.  Pins 9 extend into the interior of the handwheel 4 and engage with the mounting flange 33 of a female type connector 110 which is connected to a cylinder valve 2 of a compressed air cylinder.
Patent CA-2211923-A1 (CA)
Title: Optical system employing near-incoherent processing for distortion correction
Inventor: FARINA JAMES D
IPC: H04B10/61
Filed: 1996-01-30
Abstract: A system for correcting nonlinear distortion in fiber optic systems including communication systems by means of light modulation provided by interferometric modulators such as the Mach-Zehnder. The present invention involves the addition of a correction signal which contains error canceling information.  The additive correction signal optical beam is frequency shifted or phase scrambled through the use of a phase or frequency modulator. This insures the corrective light signal adds incoherently or quasi-incoherently within the signal bandwidth of interest. Furthermore, the present system rquires only a single light source and can be made independent of wavelength and is easily optimized with active servo devices. A system provided by the present invention also provides improvement over the state of the art because of its high degree of correction and independence from link length using ordinary single mode fibers.
Patent CA-2213268-A1 (CA)
Inventor: EGAN RICHARD G
IPC: B41J2/44
Filed: 1996-12-19
Abstract: A light source is disclosed for use as an optical printer illuminating a spatial light modulator to efficiently and uniformly project light onto a photosensitive medium while providing a simpler design of the spatial light modulator in the optical printer. The light source uses light emitting diodes opposed across a light pipe. The light from the light emitting diodes propagates in the light pipe until striking a redirection structure which redirects the light out of lateral surface of the light pipe.
Patent CA-2215660-A1 (CA)
Title: Apparatus and method for flipping and positioning articles
Inventor: MIMS HERMAN D
IPC: A21C15/02
Filed: 1996-03-27
Abstract: An apparatus for receiving a stream of distributed articles (100), such as food items, deposited in rows of like position. A slide mechanism (11) is used to retard the motion of the items as they drop off an infeed section and is selectively movable between a slide position and a flip position. In the slide position, the item drops off the edge of an infeed belt (10) and slides across the primary slide surface (11A) and onto a second slide mechanism (12) having a secondary slide surface (12A) positioned to be in substantially the same plane as the primary slide surface (11A). The slide mechanism is moved into the flip position for every other row of items. The items slide down a reverse slide surface (12B) of the second slide mechanism thus flipping the items 180 degrees from its original orientation. A fist row of items is flipped and held on a transport mechanism (20) by a gate (50) while a second row of items is allowed to slide directly onto the transport mechanism (20) at a position in front of the first row.
Patent CA-2217959-A1 (CA)
Title: Electronic compensation system
Inventor: MATTE SYLVAIN
IPC: F02M1/18
Filed: 1997-10-09
Abstract: The air/fuel mixture ratio supplied to an internal combustion engine of a vehicle is modified to achieve a constant mass flow ratio in spite of changes in atmospheric temperature and pressure conditions by employing an electronic compensation system. The system has sensors which detect air temperature and barometric pressure, from which signals are developed controlling the float bowl pressure in the engine carburettors, thus modifying the air/fuel mixture ratio as desired. The system also includes provision for enriching the fuel content of the mixture supplied to the engine to provide an oversupply of fuel in cold start situations.
Patent CA-2220276-A1 (CA)
Title: Substituted thiophene derivative and plant disease control agent comprising the same as active ingredient
Inventor: YOSHIKAWA YUKIHIRO
IPC: C07D409/12
Filed: 1997-11-05
Abstract: A novel substituted thiophene derivatives represented by the formula (1) in the invention: (see formula I) wherein R is a straight or branched alkyl group having 3-12 carbon atoms, straight or branched halogenoalkyl group having 3-12 carbon atoms, straight or branched alkenyl group having 3-10 carbon atoms, straight or branched halogenoalkenyl group having 3-10 carbon atoms, or cycloalkyl group having 3-10 carbon atoms, the cycloalkyl group being unsubstituted or substituted with an alkyl group having 1-4 carbon atoms, R and -NHCOAr are adjacent to each other, and Ar is a heterocyclic group; have excellent control activity on various plant disease such as Gray mold, Powdery mildew, Blast and Rust, and are useful as a plant disease control agent due to outstanding residual effect on Botrytis cinerea and excellent effect on Gibberella zeae.
Patent CA-2220662-A1 (CA)
Inventor: ADAM HEATHER
IPC: A63F3/06
Filed: 1997-11-10
Abstract: Bingo papers each containing one or more bingo cards printed on the paper in strips are supported for playing of a number of the bingo cards simultaneously by adhesively attaching the papers to a support card side by side.  The card can be folded about a center line.  The card includes a separate line layer.  The card carries adhesive in strips across the card.
Patent CA-2220834-A1 (CA)
Title: Enhanced quantum well infrared photodetector
Inventor: SCHIMERT THOMAS R
IPC: H01L31/0236
Filed: 1996-04-18
Abstract: An infrared detector array includes a plurality of detector pixel structures (154-164) each of which comprises a plurality of elongate quantum well infrared radiation absorbing photoconductor (QWIP) elements. The group of QWIP elements are spaced such that they comprise a diffraction grating (190) for the received infrared radiation. Top (186) and bottom (196) longitudinal contacts are provided on opposite surfaces of the QWIP elongate elements to provide current flow transverse to the axis of the element to provide the required bias voltage. An infrared radiation reflector (196) is provided to form an optical cavity for receiving infrared radiation. A plurality of detector pixel structures (154-164) are combined to form a focal plane array. Each detector pixel structure (154-164) produces a signal that is transmitted through a conductive bump (166-172) to a terminal of a read out integrated circuit (180). The group of the signals from the detector pixel structures produces an image corresponding to the received infrared radiation.
Patent CA-2221347-A1 (CA)
Title: Accumulator circuit and method of use thereof
Inventor: WANG SHAY-PING T
IPC: G06F7/50
Filed: 1996-04-18
Abstract: An accumulator is provided which includes a plurality of summing circuits (24a-24h), a plurality of switches (32b-32h), and a control unit (20) for controlling the transmission of data generated by the summing circuits. Each summing circuit generates intermediate sums and includes a port for transmitting the intermediate sums. The switches are connected between the ports of the summing circuits. The control unit is programmable to operate the switches and enable the ports at various times, thus allowing the accumulator to be configured to perform any of a variety of summing operations.
Patent CA-2223319-A1 (CA)
Title: Time slot interchanger and digital communications terminal for isdn d-channel assembly
Inventor: MAGLEBY KAY B
IPC: H04Q11/04
Filed: 1997-12-03
Abstract: The invention comprises a time slot interchanger and method for multiplexing ISDN D-channel signals into multiplexed signals in a digital communications terminal.          The method comprises receiving a frame of communication signals wherein some of the communication signals represent ISDN D-channel signals.  The frame of communication signals is stored in memory during a first frame period.  During a second frame period, at least some of the stored communication signals are retrieved from memory.  Multiplexed signals are assembled wherein each multiplexed signal comprises a multiplexed combination of the data bits of ISDN D-channel signals retrieved from memory.  The multiplexed signals are then output during a second frame period.
Patent CA-2223750-A1 (CA)
Title: Multiple firmness mattress
Inventor: AYERS WILLIAM LESLIE
IPC: A47C27/07
Filed: 1995-09-15
Abstract: A unitary mattress assembly (16) comprises a plurality of coil springs (30) interarranged to define a single innerspring core (20) having a generally rectangular shape in plan. The core (20) has a first portion (46) which is sized to accommodate a first sleeping person and comprises coil springs having a first preselected compressive strength (30'). Adjacent to the first portion is a second core portion (52) sized to accommodate another sleeping person and having coil springs of a different compressive strength (30") than the springs of the first portion (46). By the foregoing construction, a mattress may be manufactured having a single innerspring core (20) but having two regions of differing firmness (46, 52) to suit the particular preferences of two people.
Patent CA-2224882-A1 (CA)
Title: Diesel particulate trap
Inventor: WATANABE YOKO
IPC: F01N3/02
Filed: 1997-12-16
Abstract: In a diesel particulate trap, a filter 4, which is formed with a three-dimensional mesh-like structure porous body made of a heat resistant metal or a metal unwoven cloth, is placed in a case containing therein a trap connected to an exhaust pipe of a diesel engine. The filter surfaces of the filter are parallel to the direction of a flow of exhaust gas. The pore diameter, thickness, a material packing density or a mass diameter of the filter is varied in the lengthwise direction of the filter. With this unique structure, the flow velocity of the exhaust gas passing through the filter is uniform over the entire length of the filter. Therefore, a particulate collecting or trapping efficiency is improved. Further, the filter, when bearing catalyst thereon, has an additional function to remove poisonous gas components from the exhaust gas.
Patent CA-2226579-A1 (CA)
Title: Thermoplasticized starch component and process for the preparation thereof
Inventor: HEIKKILA ELINA
IPC: C08L67/00
Filed: 1996-07-10
Abstract: The invention relates to a process for thermoplastisizing starch, a meltprocessible polymer composition, which contains a starch-based component and a thermoplastisized polymer component, and a method for preparing such a composition. According to the invention the starch component, which contains hydroxyl groups capable of reacting with isocyanate groups, is modified so that it can be dissolved or gelatinized/plastisized in the melt of a hydroxy acid polymer. The starch component is then reacted with a thermoplastic component formed by a hydroxy acid polymer, in particular a lactic acid polymer, in order to produce a melt-processible, biologically degradable starch-based polymer, which can be used as an adhesive and for coating of paper and cardboard products and for preparation of injection moulded and thermoformed articles.
Patent CA-2226933-A1 (CA)
Title: Biaxially stretched polyester film for forming container and method of producing the film
Inventor: KIMURA MASAHIRO
IPC: B32B15/08
Filed: 1997-05-15
Abstract: A biaxially stretched polyester film for forming a container, characterized by being formed of a polyester substantially consisting of an ethylene terephthalate unit and an ethylene naphthalate unit, the refractive index in the direction of thickness of the film being 1.5 or greater. This film is not only excellent in the formability during formation into cans or the like, but has excellent properties in taste property, particularly, the taste property after the retorting, and may be suitably used for containers produced by forming process and, particularly, for metallic cans.
Patent CA-2227192-A1 (CA)
Inventor: DIETLIKER KURT
IPC: C07B60/00
Filed: 1996-07-08
Abstract: A heterogeneous photo-initiator in microparticle form, consisting of a finely divided substrate to which the same or different photo-initiators are covalently bonded. The photo-initiators are suitable for the radiation-induced polymerisation of photopolymerisable or photo-cross-linkage monomers to produce mouldings, protective coatings and relief images.
Patent CA-2227917-A1 (CA)
Title: Refrigerant compositions
Inventor: POWELL RICHARD LLEWELLYN
IPC: C09K5/04
Filed: 1996-08-12
Abstract: A non-azeotropic refrigerant composition is described comprising (A) carbon dioxide (CO2), (B) difluoromethane (R-32), and (C) pentafluoroethane (R-125).
Patent CA-2228103-A1 (CA)
Title: Box-type earth scraper
Inventor: ABT MARKUS
IPC: E02F3/64
Filed: 1998-01-28
Abstract: The scraper comprises an open-bottomed box having a front wall open at its bottom end. A blade, carrying ripper teeth, extends across the bottom of the front opening. The box is suspended from a front hitch and a pivotally connected rear wheel assembly. The hitch is pivotally connected with the front of the box. Hydraulic cylinders are pivotally connected between the hitch and the box. A hydraulic cylinder is pivotally connected between the top end of the box rear wall and the wheel assembly. A second blade extends across the rear end of the box and protrudes beneath its bottom rim. By manipulation of the cylinders, the box can be forwardly tilted so that the blade/tooth assembly is downwardly slanted and the weight of the box acts to press it downwardly. When so tilted, the box can be advanced to break up hard or frozen material. The broken material is deposited back on the ground through the open bottom of the box. On a second pass, the box can be leveled to collect and remove the broken material using the second blade.      The box can then be raised to leave or spread the broken material.
Patent CA-2228545-A1 (CA)
Inventor: MICHARD LAURENT
IPC: B23H7/10
Filed: 1996-09-10
Abstract: The multiple supply device (1) for supplying yarn (9) to a machine (2) comprises: a) as many supply devices (6) as there are yarns (9), each device (6) being supplied from a device (3) for conditioning the yarn (9) by means of an upstream guiding member (4), b) at least one receiver device (8) provided with a downstream guiding member (5) intended to supply the yarn to said machine (2), c) a distributor (7) which is intented to position in registration said device (6) corresponding to the selected yarn with said receiver device (8).
Patent CA-2229813-A1 (CA)
Inventor: TUNG HARVEY C
IPC: C09J7/02
Filed: 1996-08-12
Abstract: A deformable label comprising a printable film facestock having at least one layer containing incompatible polymers. The printable film facestock exhibits significantly reduced die-face buildup during extrusion of the printable film facestock when compared to the die-face buildup exhibited by film facestock of the prior art. The present invention provides for monolayer film facestock containing incompatible polymers and colorants. The present invention also allows printable film facestock to be produced in a more cost-effective manner.
Patent CA-2233284-A1 (CA)
Title: Optical carbon dioxide sensor, and associated methods of manufacture and use
Inventor: OLSTEIN ALAN D
IPC: A61B5/1455
Filed: 1996-09-25
Abstract: A method is provided for manufacturing a fiber optic sensor for detecting or measuring the concentration of carbon dioxide in a sample fluid. The method involves preparation of a suitable indicator composition (16) and incorporation thereof in a silicone capsule (14) slidably arranged over the tip of a fiber optic (12), sealed with a suitable adhesive means (18). To amplify the signal obtained, the capsule (14) is preferably fabricated so as to contain reflective particules, and tapers to a narrow tip. Novel optical sensors are also provided, as are methods for using the sensors to evaluate CO2 concentration in a sample fluid.
Patent CA-2234860-A1 (CA)
Title: Fastener having primary and secondary threads
Inventor: BECHTEL FRANK W
IPC: F16B25/00
Filed: 1998-04-15
Abstract: In a fastener having a head, which may have having torque-absorbing ribs, and a shank, which is unitary with the head and which hasa primary thread formation and a secondary thread formation. The primary thread formation, which defines axially spaced threads along a generally cylindrical portion of the shank and along a tapered tip of the shank, has a generally uniform radial dimension along the generally cylindrical portion of the shank. The secondary thread formation, which defines axially spaced threads between some of the threads defined by the primary thread formation, originates at a region spaced axially from the distal end of the generally cylindrical portion of the shank, terminates at the head, and tapers outwardly from the region where it originates toward the head. The secondary thread formation at the region adjoining the head has a radial dimension less than the generally uniform radial dimension of the primary thread formation along the generally cylindrical portion of the shank. The region where the secondary thread formation originates is located between the proximal and distal ends of the generally cylindrical portion of the shank.