baber/WOPTO huggingface dataset:
Patent CA-2135117-C (CA)
Inventor: CRUSON IZAAK P J
IPC: A01B23/04
Filed: 1994-11-04
Granted: 2004-04-06
Abstract: An adapter for attachment to the shank of a cultivator includes a first portion for attachment to the bottom end of the shank, a second portion for attachment to a sweep or to a pair of wings and a third forward triangular portion for receiving a deep banding point. The adapter can thus be used with deep banding point, with the deep banding point in conjunction with wings or with a sweep after the point and wings have been removed. A material delivery tube is welded directly to a rear surface of the second portion with that rear surface being inclined upwardly and rearwardly toward the shank so as to hold the material delivery duct at a required position for dispensing the material behind the point or behind the sweep.
Patent CA-2138278-C (CA)
Title: Method for controlling traffic in a communication network
Inventor: TESTER BRIAN CHARLES
IPC: H04Q3/00
Filed: 1993-06-21
Granted: 1998-07-14
Abstract: In a telecommunications network, such as the public switched telephone network, account must be taken of faults which can occur in the network. For instance, on occurrence of a local exchange failure, it is known to apply control such as route gapping and code blocking. The invention is concerned with detection of failure of a local exchange (116, 118) in a communications network. It relies on a combination of parameters, each parameter in the combination having to meet predetermined criteria. In particular, a local exchange failure is recognised when the average value of the All Circuits Engaged (ACE) parameters over all traffic routes into a local exchange rises in a significant manner and the average value of the Circuits in Service (CCTS IS) parameters over all traffic routes into that exchange decreases in a significant manner.
Patent CA-2139709-C (CA)
Title: Method of processing an epitaxial wafer of inp
Inventor: IWASAKI TAKASHI
IPC: H01L33/00
Filed: 1995-01-06
Granted: 1999-08-03
Abstract: A method is provided herein for the fine processing of InP epitaxial wafers including As, In and P for producing laser diodes, light-emitting diodes or photodiodes. The InP epitaxial wafer is selectively covered with striped protection mask films. The parts of the wafer which are uncovered by the protection mask films are first etched by an etchant which forms normal-mesas or mountain-shaped stripes under the masks, to provide a first-etched wafer. Then, the first-etched wafer is again etched by a gas of thermally-dissolved AsCl3 until the stripes have rectangle sections with erect surfaces.      Buried layers of InP then are grown on the eliminated parts of the wafer.
Patent CA-2143617-C (CA)
Title: Stroboscopic illumination system for video displays
Inventor: EICHENLAUB JESSE B
IPC: H04N13/307
Filed: 1993-09-07
Granted: 2004-02-17
Abstract: In a flat panel autostereoscopic display full resolution equal to the number of pixels in the two-dimensional light valve array, which serves to generate images, is achieved by incorporating an illumination system which makes use of stroboscopic light sources or continuously lit light sources in combination with electro-optical shutter means. The lighting system when used in conjunction with a 2-D flat panel display, achieves image resolution exceeding several times the pixel resolution of the light valve array.
Patent CA-2146480-C (CA)
Inventor: FENN DAVID ROBERT
IPC: C09D201/06
Filed: 1995-04-06
Granted: 2006-11-28
Abstract: A coating composition having a good balance between solids content at a given viscosity and hardness in the final coating comprising a solution in a volatile organic solvent of; i) a hydroxyl functional polymer ii) a crosslinker for the polymer, characterised in that the composition also comprises iii) 1,4-cyclohexane dimethanol.
Patent CA-2150328-C (CA)
Title: Apparatus for manufacturing magnetized water and magnetic force generator used therefor
Inventor: HATTORI TOSHIMITSU
IPC: C02F1/00
Filed: 1995-05-26
Granted: 2001-07-17
Abstract: Pure water discharged from a pure water tank 9 by means of a pump 27 is returned again to the tank 9 through a cyclic water channel 37.  Midway in the cyclic water channel 37, a magnetic force generator 31 is provided.  In the magnetic force generator 31, permanent magnets are arranged in such a manner that they interpose therebetween three water channels each made of a non-magnetic material and each having a long and narrow section and that magnetic poles of the magnets face each other outside the longer side of the section.
Patent CA-2154324-C (CA)
Title: Paint formulations
Inventor: BEERS NICOLAAS CORNELIS MARIA
IPC: C09D167/00
Filed: 1995-07-20
Granted: 2007-04-10
Abstract: Paint formulation comprising at least one long oil alkyd resin and a solvent consisting essentially of one or more linear alkanes having a boiling range from 160 to 250 °C, preferably from 170 to 200 °C, and use of such alkanes in paint formulations. In a preferred embodiment, the solvent contains at least 85% by weight of linear alkanes in the applicable boiling range. Most suitably, the solvent is obtained from a distillate fraction having the indicated boiling range, resulting from a Fischer-Tropsch hydrocarbon synthesis reaction.
Patent CA-2159586-C (CA)
Inventor: HEVELING JOSEF
IPC: B01J27/13
Filed: 1994-03-30
Granted: 2003-11-18
Abstract: In a process for preparing 3-methylpiperidine or 3-methylpyridine from 2-methyl-1, 5-diaminopentane in the gaseous phase, the initial product is made to flow over catalysts.  In the first step, 3-methylpiperidine is produced, and if required 3-methylpyridine is produced in a second step.
Patent CA-2161477-C (CA)
Inventor: OSBORN CHARLES
IPC: F16H61/18
Filed: 1995-10-26
Granted: 2001-04-03
Abstract: A vehicle transmission shifter in which a locking member is movable along aligned and opposite directions to a locked or unlocked position. A mechanical advantage means, preferably a toggle joint, is connected to one end of the locking member for either restraining or moving the locking member in response to the electromagnetic attracting and repelling force.  One of the magnetic attracting or retracting forces causes the locking member to move and be held in the locked position and the other of the magnetic attracting or retracting force causing the locking member to be moved to an unlocked position.
Patent CA-2165704-C (CA)
Title: Telephone message center
Inventor: GREWE ANTHONY JAMES
IPC: H04M1/715
Filed: 1995-12-20
Granted: 1999-04-20
Abstract: A telephone message system overcomes the problems and limitations of presently available systems that seek to enhance inter-and intra-premises communications. The system advantageously comprises a controller unit with Caller ID capabilities and one or more adjunct units that are bridged onto a single wire-pair at a user' s residential location in a parallel electrical connection. These customer installable units are merely plugged into any telephone jack and share a telephone wire-pair with existing telephone extensions without interference. Such operation is possible since communication between the controller unit and the adjunct units is limited to a frequency band different from the audio frequency band used by the existing telephone extensions on the single wire-pair. The controller unit, in one configuration, operates as an answering machine with multiple mailboxes. This functionality is advantageously combined with Caller ID, intercom and speakerphone capabilities. The adjunct units may be added to any of existing telephone devices thereby providing access to the functions available at the controller unit throughout the premises.
Patent CA-2166498-C (CA)
Inventor: FRITZ FREDERICK F
IPC: B08B15/02
Filed: 1996-01-03
Granted: 2008-08-12
Abstract: An exhaust hood is disclosed which comprises an open underside and a grease filter defining an exhaust plenum between the hood and the grease filter and a flow path through the grease filter. A shutter-like panel is slidable into the flow path adjacent to the grease filter for blocking a portion of the flow path to adjust the distribution of air across the face of the hood without altering the volume of air flowing through the exhaust hood. Multiple side-by-side panels may be provided and each panel preferably tapers in height across its width. An intake fan is provided at a front portion of the hood to direct room air from adjacent the hood through an intake plenum and downwardly at a front portion of the space beneath the hood to create a partial air curtain which is then exhausted through the hood.
Patent CA-2167983-C (CA)
Title: Dry prepolymerized catalyst for olefin polymerization, process for preparing the same and gas phase olefin polymerization process
Inventor: TSUTSUI TOSHIYUKI
IPC: C08F10/00
Filed: 1996-01-24
Granted: 2001-01-09
Abstract: The invention provides a dry prepolymerized catalyst for olefin polymerization, which comprises a solid catalyst component and a prepolymerized polymer of an olefin, said solid catalyst component comprising (A) a particle carrier, (B) a Group IVB transition metal compound supported on the particle carrier (A), and (C) an organoaluminum oxy-compound supported on the particle carrier (A), wherein said dry prepolymerizzed catalyst has a volatile matter content of not more than 2.0 % by weight; and a process for preparing this dry catalyst by drying a prepolymerized catalyst at a temperature of not higher than 50 °C in a stream of an inert gas to reduce the volatile content of not more than 2.0 % by weight.  Because of its good fluidity, the dry prepolymerized catalyst of the invention can be stably fed to the polymerization reactor, and also has excellent olefin polymerization activity.  When the prepolymerized catalyst is dried in accordance with the invention, a dry prepolymerized catalyst of good fluidity can be prepared without reducing the olefin polymerization activity.
Patent CA-2169575-C (CA)
Title: Low application temperature hot melt adhesive
Inventor: LIEDERMOOY INGRID
IPC: C08L23/08
Filed: 1996-02-15
Granted: 1999-09-28
Abstract: Hot melt adhesive compositions consisting essentially of: a) 15 to 45% by weight of at least one ethylene n-butyl acrylate copolymer containing 15 to 40% by weight n-butyl acrylate and having a melt index of at least 600; b) 25 to 55% of a terpene phenolic tackifying resin or a hydrogenated derivative thereof, the resin having a Ring and Ball softening point less than 125°C; c) 15 to 40% by weight of a low melting point synthetic Fischer-Tropsch wax; and d) 0 to 1.5% stabilizer. The adhesives are characterized by an excellent balance of high and low temperature performance without sacrifice to machinability or thermal stability.
Patent CA-2169857-C (CA)
Title: Annular mask contact lenses
Inventor: MILLER DAVID
IPC: G02C7/04
Filed: 1994-09-13
Granted: 1999-11-09
Abstract: An annular mask contact lens (10) designed to operate with the normal functioning of the human pupil. An annular mask (18) forms a small pinhole-like aperture (20) on the contact lens (10) enabling continual focus correction. The outer diameter of the annular mask (18) allows the wearer to transmit more light energy through the pupil as brightness levels decrease. The contact lens (10) may be structured with two separate and distinct optical corrections, both at the small aperture region and in the region beyond the annular mask. Functional imaging is thus achieved for both bright and dim lighting, and over a wide range of viewing distances. Cosmetic and peripheral vision enhancement is also provided by the contact lens constructed according to the invention.
Patent CA-2174822-C (CA)
Title: Image display apparatus with flat screen
Inventor: ARIMOTO NOZOMU
IPC: H01J9/20
Filed: 1996-04-23
Granted: 2002-12-17
Abstract: After adhesive resin is applied to a surface of a flat panel, a front panel is glued thereto.  One side of the front panel is contacted to the adhesive resin layer with the front panel tilted toward the surface of the flat panel.  Then, the front panel is moved slowly to be close and parallel to the front panel.  Finally, the front panel is pressed to the surface of the flat panel.  Afterward, the adhesive resin is hardened.  It is preferable that the thickness of the adhesive resin applied to the surface of the flat panel is decreasing from the side to which the side of the front panel is contacted, to the opposite side.  By the above-mentioned method, an image display apparatus having multilayer structure comprising of a flat panel for displaying image, an adhesive resin layer and a front panel can be manufactured efficiently.
Patent CA-2183236-C (CA)
Title: Process for producing a surfactant treated, formed, polymeric web
Inventor: WNUK ANDREW JULIAN
IPC: B29C67/20
Filed: 1995-02-23
Granted: 1999-08-03
Abstract: A coextruded, multilayer polymeric film having a core layer including a surfactant and at least one outer layer is placed on a forming structure. The forming structure moves in a direction parallel to the direction of travel of the multilayer film and carries the multilayer film in that direction. A fluid pressure differential is applied across the thickness of the multilayer film along the direction of movement of the forming structure. The fluid pressure differential is sufficiently great to cause the multilayer film to conform with the forming structure forming a formed polymeric web. The formed polymeric web is exposed to a temperature which is sufficiently great enough to allow the surfactant in the core layer to migrate to the outer layer to form a surfactant treated formed polymeric web.
Patent CA-2186244-C (CA)
Inventor: DAGODAG MELISSA K
IPC: G04B37/14
Filed: 1996-01-22
Granted: 1998-12-08
Abstract: The object of the invention is to provide a magnetic-backed time-indicating device which indicates the time with parts adhered magnetically to a ferrous metal surface. A timepiece is constructed of a hand assembly (16) including a clock movement (10) and hands (12). A magnet (18) is affixed to the hand assembly (16) so that the hand assembly (16) may be magnetically mounted on a ferrous metal object (28). In another version, there is further provided magnetic ornamental indicator(s) (22) which indicate the time. In still another version, an ornamental ferrous metal object (24) is provided and attached to the clock movement (10) and hands (12). In this same version, the drive shaft (14) extends through the ornamental ferrous metal object (24), and the magnet (18) is also affixed to the hand assembly (16). Also in this version, magnetic ornamental indicator(s) (22) may be further provided. Yet another version provides the hand assembly (16) including a clock movement (10) and hands (12) with a nonmagnetic adhesive (26) by which the hand assembly (16) affixes to the ferrous metal object (28). In this same version, magnetic ornamental indicator(s) (22) may be further provided and attached to the clock movement (10) and hands (12), and the drive shaft (14) may extend through the ornamental object (20).
Patent CA-2198996-C (CA)
Inventor: BOLASH JOHN PHILIP
IPC: B41J2/05
Filed: 1997-03-03
Granted: 2006-11-21
Abstract: Disclosed is a method and apparatus for detection of low to moderate impedance short circuits on any driven line of a thermal ink jet printer to inhibit damage to printer driver circuitry, principally active elements thereof. The printer includes a printhead having a plurality of thermally activated print nozzles therein for ink ejection upon thermal agitation of the ink within the nozzle, and data and address drive lines driven by data line and address line drivers for selection and activation of nozzle heater active elements associated with each of the nozzles by effecting current flow through a heater element associated with each of said nozzles upon selection by associated address and data line activation. One method includes the steps of energizing one of a data line and address lines associated with at least one thermal ink jet nozzle on the printhead, detecting a lower than normal impedance on the energized line, and inhibiting further activation or energization of at least one of the data and address line drivers. The inhibiting step may be accomplished, for example, by disabling the power supply associated with driver associated with the line having lower than normal impedance and/or by preventing the printer driver circuit from providing data and/or address signals to the printhead.
Patent CA-2200450-C (CA)
Title: Reacteur a lit fluidise circulant, et son procede d'exploitation
Inventor: HYPPAENEN TIMO
IPC: F22B31/00
Filed: 1995-09-28
Granted: 1999-07-06
Abstract: Réacteur à lit fluidisé circulant possédant des parois sensiblement verticales renfermant des éléments de refroidissement, lesdites parois verticales délimitant le volume intérieur de la chambre de réaction (14). Un séparateur (22) servant à séparer les matières particulaires des gaz évacués est relié à la section supérieure de ladite chambre de réaction. Un conduit de retour (26) est relié au séparateur. Un lit fluidisé à bulles (28') est prévu à côté du réacteur et pourvu d'un ensemble d'échange thermique. Un passage d'évacuation (38) étanche aux solides est prévu entre la chambre à lit fluidisé à bulles et ladite chambre de réaction. La section supérieure de ce passage d'évacuation présente un orifice permettant l'évacuation des matières particulaires à partir de la section supérieure du passage. On a également prévu un procédé d'exploitation d'un réacteur à lit fluidisé circulant possédant un passage d'évacuation entre une chambre à lit fluidisé à bulles et la chambre de réaction. Les matières particulaires refroidies sont évacuées à partir de la section inférieure dudit lit fluidisé à bulles, et vers la section inférieure du passage d'évacuation. Les matières particulaires sont fluidisées dans le passage d'évacuation puis introduites dans la chambre de réaction à partir de la section supérieure de celui-ci.
Patent CA-2202257-C (CA)
Title: Stent delivery and deployment method
Inventor: LASHINSKI ROBERT
IPC: A61F2/06
Filed: 1995-10-19
Granted: 2004-12-21
Abstract: An encapsulated stent device for implantation within the vascular system includes a balloon (36) of a balloon catheter (30) formed around and adhered to a wire-like stent (10) so that the outer surface of the device is more regular for delivery through the vascular system without an exterior sheath. The encapsulation securely anchors the stent (10) to the balloon (36) and maintains a low profile for negotiation of tortuous and narrowed vessels. Encapsulation requires placement of the stent (10) over the balloon (36), placement of a sheath (42) over the stent (10) on the balloon (36), heating and preferably pressurization of the balloon (36) to cause it to expand around the stent (10) within the sheath (42), and cooling while preferably maintaining pressure to cause the balloon (36) to adhere to the stent (10) and to set the shape of the expanded balloon (10). Retainers may be placed at the distal and/or proximal ends of the stent during the encapsulation process, or the balloon material may expand to form retainers (54). The balloon (36) defines at least three folded wings for symmetrical expansion of the stent (10), and one or more connected or non-connected stents may be encapsulated depending upon the area to be treated.
Patent CA-2204001-C (CA)
Inventor: VAN OOSTERHOUT MASCHA MARIA CH
IPC: H04M1/247
Filed: 1996-08-26
Granted: 2007-08-21
Abstract: A terminal, for use in a communication system is described having graphical representation means and displaying means for displaying icons on the graphical representation means, the icons representing parties having calls with the terminal. For representing parties in different call states, like an incoming call state, a connected call state or an on-hold call state, icons are used which differ in size and/or shape. This makes it possible for a user to read at a glance the state of all calls of the terminal.
Patent CA-2204059-C (CA)
Inventor: DUTTWEILER DONALD LARS
IPC: H04B3/23
Filed: 1997-04-30
Granted: 2001-10-30
Abstract: The detection and cancellation of echo in a communications system is enhanced by taking advantage of the accumulated knowledge relating to the echo path delay that an adaptive filter acquires as a result of its adaptation process. Such knowledge improves significantly the ability of an associated Near-End-Speech (NES) detector to detect for the presence of near end speech.
Patent CA-2210922-C (CA)
Title: Method and apparatus for tracking alignment in wireless optical communications
Inventor: SHELBY KEVIN ALAN
IPC: H04B10/118
Filed: 1997-07-21
Granted: 2001-03-27
Abstract: An optical communication system and methods are disclosed wherein the receiving source uses an array sensor to recover data from a transmitted optical beam and to evaluate alignment accuracy with the transmitted beam. The array sensor uses the principles of geometric invariance to determine the accuracy of alignment. The sensor may relay the recovered information to a system controller or other suitable device, which can then reposition the receiver so that it is properly aligned with the transmitter. The system and methods advantageously provide for a more compact and robust communication system wherein a single receiving element can be used for both data recovery and alignment evaluation functions.
Patent CA-2223998-C (CA)
Inventor: WAGSTAFF IAN
IPC: C09D175/04
Filed: 1996-06-06
Granted: 2003-05-06
Abstract: La présente invention se rapporte à une composition filmogène, à un procédé de production de la composition et à l'application de la composition à des formulations de revêtement qui produisent un revêtement polymérisé résistant à la pluie acide. Une composition de polyol de polyuréthane filmogène comprend un produit de réaction d'un isocyanate n-fonctionnel (dans lequel n est un nombre compris entre 2 et 5 environ) avec au moins un diol ou un triol ou des mélanges de ceux-ci, ainsi qu'un composé contenant des groupes fonctionnels réagissant à l'isocyanate, de préférence un alcool ou un thiol monofonctionnel. Le polyol de polyuréthane de faible viscosité de la présente invention est généralement réticulé/polymérisé à l'aide d'une mélamine afin de produire un revêtement polymérisé hautement résistant à une attaque à l'acide aussi bien que présentant d'autres propriétés physico-mécaniques souhaitées. Les compositions de revêtement présentent des caractéristiques de plasticité améliorées par rapport à des compositions contenant des polyols de polyuréthane préparées sans les alcools ou thiols monofonctionnels.
Patent CA-2226804-C (CA)
Title: Rubber mixtures containing modified rubber gels
Inventor: JESKE WINFRIED
IPC: C08L21/00
Filed: 1998-01-14
Granted: 2007-04-10
Abstract: The rubber mixtures containing modified rubber gels according to the invention prepared from at least one rubber gel modified with compounds containing sulphur and reactive towards C=C double bonds and at least one rubber containing double bonds are preferably suitable for the production of vulcanisates which have an unusually strong reinforcing action in rubber vulcanisates. The vulcanisates furthermore exhibit unusually low dynamic damping at relatively elevated temperatures. They are thus particularly suitable for the production of low rolling resistance motor vehicle tyre treads.