baber/WOPTO huggingface dataset:
Patent CA-2132111-C (CA)
Title: Inspection of translucent containers
Inventor: NICKS TIMOTHY J
IPC: G01P15/08
Filed: 1994-09-15
Granted: 2003-11-18
Abstract: Apparatus for detecting checks in the sidewall of a translucent container (22) that includes a light source (24) for illuminating an elongated strip of the container sidewall parallel to the central axis of the container in such a way that illumination rays are incident at any point of the strip from multiple differing angles. A camera (50) is positioned externally of the container for receiving light reflected by checks in the illuminated strip, and electronic circuitry (52) is coupled to the camera for detecting checks in the container as a function of such reflected light. Since the light rays at any point in the elongated illuminated strip on the container sidewall are incident from multiple differing angles, planar checks and split seams in the container sidewall that are not precisely vertical in orientation will have a greater chance of reflecting light energy from the source onto the camera.
Patent CA-2138115-C (CA)
Title: Cylindrical air-cell
Inventor: YOSHIZAWA HIROSHI
IPC: H01M50/186
Filed: 1994-12-14
Granted: 2007-01-30
Abstract: The sealing of the top and/or bottom of the cylindrical positive electrode of an air-cell is improved and leakage of the electrolyte from the jellied zinc negative electrode disposed within the positive electrode which is constituted of a collector layer, catalyst layer, and a porous layer is prevented. By utilizing a positive electrode constituted of a metallic collector layer made of a metal mesh or such, a catalyst layer disposed around said collector, and a fluororesin porous layer as an air diffusion layer, an outer cup and an inner cup are pressed on the top of the positive electrode in order to prevent the leakage of the electrolyte. The possible leakage of electrolyte from the bottom of the positive electrode can be prevented by providing a resin sealing body with a ring shaped indentation fitted to the bottom of a positive electrode, and by inserting this resin sealing body into the positive electrode cannister, and by pressing the side wall. of the positive electrode cannister against the side of the resin sealing body, in order to fit the bottom of the positive electrode to the indentation of the resin sealing body.
Patent CA-2138863-C (CA)
Title: Composition for invisible ink responsive to infrared light
Inventor: AUSLANDER JUDITH D
IPC: C09D11/00
Filed: 1994-12-22
Granted: 1998-12-22
Abstract: An invisible ink has been discovered that utilizes an invisible or almost invisible substituted phthalocyanine dye in combination with selected waxes and resins. The resulting ink is one that has use in thermal printing and is transparent or almost transparent in white light, but is responsive to infra-redlight in the range of 720 to 1000 nm. The preferred waxes are polyethylene wax, natural paraffin wax and carnauba wax, and the preferred resin is ethyl vinyl acetate polymer.
Patent CA-2140960-C (CA)
Inventor: HARTOG ADRIAN
IPC: G06F13/20
Filed: 1995-01-24
Granted: 2000-11-07
Abstract: A method of managing display memory in a computer system comprised of defining a first memory portion for storing display pixel data and defining a second memory portion as a cache memory, storing pixel data from each bitmapped object line of an object in linear sequence in the cache memory, and transferring the linearly stored pixel data from the cache memory to the first portion, for subsequent processing or display.
Patent CA-2150692-C (CA)
Title: Dispensing device
Inventor: COFFEE RONALD ALAN
IPC: B01D61/42
Filed: 1993-11-26
Granted: 2006-09-05
Abstract: A device for comminuting a liquid, which comprises at least two electrohydrodynamic comminution means (24) arranged so that in use comminution of opposing polarity are formed which are substantially admixed after formation and a pump (22) for use in the dispensing device.
Patent CA-2162492-C (CA)
Title: A method for determining communication resource handoffs
Inventor: HESS GARRY CARSON
IPC: H04L12/56
Filed: 1994-06-06
Granted: 1998-05-19
Abstract: In a multiple site communication system (100), a method for determining when to hand off a communication that is occur-ring on one communication resource to another communication resource may be accomplished in the following manner. Once a communication unit (113) is allocated a communication resource, it begins to monitor signal usabilities of the allocated communica-tion resource and a predetermined set of alternate communication-resources. A broadcast unit (107) associated with the allocated communication resource also monitors the signal usability of the allocated communication resource. When the signal usability of the allocated communication resources is selected to be unfavor-able by the communication unit or the broadcast unit, one of the alternate communication resources is selected based on calculated signal usability, such that the communication unit can continue the communication.
Patent CA-2164403-C (CA)
Inventor: HEUBNER ULRICH
IPC: C01B17/60
Filed: 1995-12-04
Granted: 1999-07-06
Abstract: The invention relates to a nickel alloy which contains 20.5 to 25% molybdenum, 5 to 11.5% chromium, more than 5 to 8% iron as the main alloying elements and which has adequate resistance to corrosion, more particularly in relation to acid, low-oxygen media such as occur, for example, in smoke gas desulphurization plants, and constructional members produced therefrom.
Patent CA-2166935-C (CA)
Title: Transverse zipper system
Inventor: MALIN ART
IPC: B65B9/20
Filed: 1996-01-10
Granted: 2001-10-02
Abstract: Packages being produced on a form, fill and seal machine as provided with transverse zippers inserted thereinto through a fin seal gap. Pairs of fin sealing bars are separated by a gap to produce the fin seal gap. The fin seal gap is opened, perhaps by vacuum means, and a zipper probe inserts a zipper having a web into the tube of plastic sheet material being formed into bags. The web of the zipper is sealed to the plastic sheet material, and the zipper probe withdrawn from the tube. Cross seal jaws seal both transverse ends of the package, a knife separates each package from that previously made, and a fin gap sealer seals the fin seal gap to complete the manufacture.
Patent CA-2172613-C (CA)
Title: Process for the galvanic application of a surface coating
Inventor: MULL KARL
IPC: C25D5/18
Filed: 1994-10-01
Granted: 2003-06-17
Abstract: The invention relates to a galvanic coating process to provide a structured surface coating on a workpiece with an electrically conductive surface and a device for implementing the process. Here, the object to be coated is the cathode in a galvanic bath. The process current is raised in steps during a nucleation phase (10, 11) in which the stepwise increase in the current results in the formation of a deposit of individual or adjacent bodies on the surface of the object. The prooess current is then kept constant during a ramp working period (12), resulting in the growth of the previously produced nuclei or bodies. The process may be cyclically repeated.
Patent CA-2174015-C (CA)
Title: Speech coding parameter smoothing method
Inventor: KLEIJN WILLEM BASTIAAN
IPC: G10L19/14
Filed: 1996-04-12
Granted: 2000-01-11
Abstract: A decoding method and apparatus for speech coding systems which takes into account the fact that the human auditory system is sensitive to changes in signal characteristics. For example, a sustained distortion of the spectral characteristic of reconstructed speech is usually less perceptible than an objectively smaller distortion which changes as a function of time. This property of the auditory system is advantageously exploited in the design of a speech coding system receiver in accordance with the present invention, by selecting the sequence of decoded speech parameter values on a perceptual basis. Illustratively, the sequence of decoded speech parameter values is selected so as to describe a smooth path through the sequence of Voronoi regions. The distance between successive parameter values is advantageously minimized, under the constraint that the resultant parameter values fall within, or nearly within, the appropriate Voronoi regions. In this manner, a smoother trajectory will result, thereby enabling the receiver to produce a perceptually superior reconstructed speech signal.
Patent CA-2175112-C (CA)
Inventor: HAMMER CARL JOHANNES
IPC: E05F15/619
Filed: 1996-04-26
Granted: 2005-07-05
Abstract: A manually releasable coupling device for connecting an elongate operator means (2) with a frame or main frame member of a window comprises a first coupling member (3) for connection with a free end of the operator means (2) and a second coupling member (6-10) designed for mounting in or on the frame or main frame member. The first coupling member is a flat disc-shaped element (3) with a substantially keyhole-shaped recess 85), while the second coupling member comprises a shaft section (6) for mounting in a bore in the frame member or the main frame member in connection with a turning handle (7). The shaft section (6) has a local constriction (8) for releasable engagement with the keyhole-shaped recess (5) in the disc-shaped element (3).        With a view to allowing manual closing of the window under surmounting of sealing pressure, the shaft section may be eccentric relative to the rotational axis of the turning handle.
Patent CA-2179349-C (CA)
Title: Method and apparatus for providing a 3-way connection between a mobile computing device, a stationary computing device and a computer network
Inventor: CHEUNG ROGER YIU MING
IPC: G06F15/17
Filed: 1996-06-18
Granted: 2000-01-11
Abstract: A method and apparatus for providing a three-way connection between a mobile computing device, a stationary computing device and a computer network. When there is an established connection between a mobile computing device (e.g. a notebook computer) and the stationary computing device (e.g. desktop PC) over the wireless communication channel (e.g. infrared link), the system operates in BRIDGE mode. In BRIDGE mode the system redirects information packets in the OSI layer 2 (data link layer). When a notebook computer is not attached, the system operates in PASSTHROUGH mode and all non-broadcast message traffic from the Ethernet LAN is filtered by the Ethernet adapter based on the network address or group address of the desktop PC.
Patent CA-2179834-C (CA)
Inventor: GILMAN ROBERT REAGAN
IPC: H04N7/14
Filed: 1996-06-25
Granted: 1999-11-16
Abstract: A switching system (100) inserts H.320 multi-media protocol-terminating resources (156) into an existing call dynamically, only when the resources are needed, and also removes the resources from an ongoing call dynamically, when the resources are no longer needed, whereby the switching system can provide call features such as hold, conference, disconnect, drop, andtransfer, to an H.320 multi-media call and can do so spontaneously, whenever desired during the call, without tying up the resources for the duration of the call even when they are not needed. To extend these capabilities to both single-channel and multi-channel multi-media ISDN BRI calls, the switching system associates a plurality of calls that constitute the individual channels of a multi-channel call and treats the associated calls identically and in unison for purposes of insertion and removal of resources and the providing of features.
Patent CA-2180016-C (CA)
Inventor: SRIVASTAVA VIPUL J
IPC: C02F3/28
Filed: 1994-12-23
Granted: 2000-11-07
Abstract: L'invention a pour objet un procédé servant à améliorer la production de méthane par digestion anaérobie en deux phases d'une matière organique carbonée. A cet effet, la matière organique carbonée fermente dans des conditions anaérobies dans un digesteur en phase acide, puis forme un effluent liquide/solide fermentant lui-même dans des conditions anaérobies dans un digesteur en phase méthane. Le gaz produit renfermant du méthane est retiré du digesteur en phase méthane dans lequel est introduit de l'oxygène. Selon un mode préféré de réalisation, l'effluent liquide en phase méthane passe par une colonne de stripping de CO¿2? entraînant l'extraction du CO¿2? et du H¿2?S de l'effluent liquide en phase méthane. L'effluent liquide obtenu après stripping contient de l'oxygène dissous et est ensuite recyclé dans le digesteur en phase méthane.
Patent CA-2183764-C (CA)
Inventor: GOODSHIP ALLEN E
IPC: A61K31/66
Filed: 1995-04-24
Granted: 2005-11-29
Abstract: The invention relates to the use of certain methanebisphosphonic acid deriva tives (for the manufacture of a pharmaceutical compositi on) for the prevention and treatment of prosthesis loosening and prosthesis migr ation in mammals including man.
Patent CA-2185340-C (CA)
Inventor: MCBRIDE KEVIN E
IPC: A01N37/20
Filed: 1995-03-10
Granted: 2007-07-17
Abstract: Novel compositions and methods useful for genetic engineering of plant cells to provide increased expression in the plastids of a plant or plant cell of the Bacillus thuringiensis insecticidal protein.
Patent CA-2186093-C (CA)
Title: Liquid ejection head, apparatus and recovery method for them
Inventor: NAKATA YOSHIE
IPC: B41J2/165
Filed: 1996-09-20
Granted: 2002-02-19
Abstract: A liquid ejection head includes an ejection outlet for ejecting liquid; a bubble generating region for generating a bubble; a movable member disposed faced to the bubble generating region and movable between a first position and a second position which is farther form the bubble generating region than the first position; a liquid supply passage for supplying the liquid to the bubble generating region from upstream of the bubble generating region; an opening, in fluid communication with the supply passage, for discharging the liquid.
Patent CA-2191121-C (CA)
Inventor: RAUTIO KAUKO
IPC: B27B31/08
Filed: 1996-11-22
Granted: 2005-04-12
Abstract: Procedure for working tree trunks by machining into wood products, such as boards and cants. In the procedure, from trunks (1) preferably trimmed on at least two sides, at first at least one side board (3) is sawn so that at least part of the dull edge (2) remains on the side board (3), whereupon the dull edges (2') of the side board are edged. The side board (3) is moved together with the central section (1') during the edging operation and the side board (3) and the central section (1') are kept at a distance from each other by means of a separating element (6), such as a dividing knife, at least during the edging operation.
Patent CA-2201563-C (CA)
Title: Defibrillation system including an atrial defibrillator and ventricular defibrillation backup
Inventor: SEARS GENA K
IPC: A61N1/39
Filed: 1997-04-02
Granted: 2001-06-12
Abstract: An implantable defibrillation system includes a lead system  for making  electrical  contact  with  a  heart,  an atrial cardiovertor coupled to the lead system for applying cardioverting electrical energy to that is of the heart, and a ventricular defibrillator coupled to the lead system.          The ventricular  defibrillator  includes  a  ventricular arrhythmia  detector  responsive  to  a  control  signal  for detecting for a ventricular arrhythmia of the heart and a ventricular cardiovertor for cardioverting the ventricles of  the heart  in  response  to the  ventricular  arrhythmia detector detecting a ventricular arrhythmia.  A ventricular arrhythmia  detector  enable  stage  provides the  control signal  in response  to each application of cardioverting electrical energy to the atria by the atrial cardiovertor.
Patent CA-2202646-C (CA)
Inventor: BACINO JOHN
IPC: D04H1/42
Filed: 1995-06-02
Granted: 2000-10-31
Abstract: A nonwoven web is described that is a thin porous polytetrafluoroethylene membrane consisting essentially of a nonwoven web having a microstructure of substantially only microfibrils fused at crossover points. It is usually strong, is unusually thin, has unusually small pore sizes, but a very high air flow-through. It has a pore size between 0.05 and 0.4 micrometers; a bubble point between 10 and 60 psi; a pore size distribution value between 1.05 and 1.20; a ball burst strength between 0.9 and 17 pounds/force; an air flow of between 20 Frazier and 10 Gurley seconds; a thickness between 1.0 - 25.4 micrometers; and a fiber diameter ranging between 5 and 200 nm.
Patent CA-2211540-C (CA)
Inventor: TORMEY ELLEN SCHWARTZ
IPC: B32B18/00
Filed: 1996-01-29
Granted: 2006-08-15
Abstract: Conductive via fill inks for green tapes to be stacked and bonded to a support substrate, the glass used for the green tape having a firing temperature from 850-950 ° C, wherein the glass used for the via fill ink has a glass transition temperature that is higher than that of the glass used to make the green tape, preferably does not crystallize at the maximum firing temperature of the green tape and comprises from 30-75 percent by volume of the glass-conductive metal powder mixture of the via fill ink. These conductive via fill inks will not shrink until the green tape shrinkage has commenced during firing of the composite circuit board and they will flow slightly during firing, forming good bonds to the glass in the walls of the vias, thereby ensuring good integrity of the vias and good connections to the circuitry on the fired ceramic multilayer circuit board.
Patent CA-2216539-C (CA)
Inventor: VADNAIS KENNETH
IPC: B01F7/00
Filed: 1996-03-28
Granted: 2007-01-30
Abstract: L'invention concerne une mélangeuse à main portable, pour béton, mortier et plâtre qui se compose d'un petit moteur à essence monté sur un guidon (18) et se prolongeant vers le bas par un arbre moteur (16) relié à une boîte de vitesse (22) et, de part et d'autre de cette dernière un arbre transversal (24) entraîné par l'arbre à moteur. L'arbre transversal est équipé de plusieurs lames (26, 28) conçues pour parfaitement agiter et malaxer l'eau et les ingrédients nécessaires à la confection de béton, de mortier, de plâtre ou de tout autre matériau lourd et difficile à mélanger. Les extrémités des lames sont reliées par une fine tige (34) formant un cercle autour d'elles pour les empêcher de venir taper contre les bords de l'auge de mélangeage ou de tout autre récipient. Les lames peuvent aussi être façonnées de telle sorte que leurs extrémités forment un cercle sensiblement continu.
Patent CA-2219411-C (CA)
Title: Procede et systeme permettant a des stations secondaires d'acceder a un support de transmission partage
Inventor: PERREAULT JOHN A
IPC: H04L12/403
Filed: 1996-03-26
Granted: 2000-12-12
Abstract: Un procédé permettant à des stations secondaires (12, 14, 16) d'accéder à un support de transmission partagé détient une liste de stations secondaires (12, 14, 16). Un appel est transmis par une station primaire (10) à l'une des stations secondaires (12, 14, 16). La station secondaire (12, 14, 16) attend un appel, examine l'affectation de la transmission, détermine s'il y a encombrement et transmet, avec les données en réponse à l'appel, des informations concernant l'encombrement. Un système permettant de réaliser cet accès comprend une station primaire (10) et une pluralité de stations secondaires (12, 14, 16). La station primaire comprend un contrôleur d'appel (30), un récepteur (32), un émetteur (34), un additionneur (36), une base de données (38) de listes d'appels de stations secondaires et un contrôleur (40) de trafic de données.
Patent CA-2222641-C (CA)
Inventor: WANG I-FAN
IPC: B01D69/10
Filed: 1996-06-07
Granted: 2006-10-17
Abstract: The present invention relates to the field of synthetic polymeric microfiltration membrane materials that are fabricated to separate liquids from solids contained therein. One aspect of the invention relates to a sulfone polymer membrane with high surface porosity (high pore density) and distinctive asymmetry that can separate solids (i.e., blood cells) from a liquid (i.e., plasma) without the need for centrifugation. The membrane is further rendered hydrophilic through co-casting the sulfone polymer (which is a hydrophobic polymer) with a hydrophilic polymer, such as polyvinylpyrrolidone. Because of these properties and the fact that it requires only a small amount of the solid containing liquid (i.e., whole blood) to be applied to the larger pore surface, the membranes of the invention are highly useful in testing devices for the quick detection of properties or components contained in liquid samples, such as diagnostic applications (i.e., the detection of physiological conditions (i.e., pregnancy, insulin level, stomach ulcer, and the like) and infectious diseases (i.e., AIDS, hepatitis, and the like)).
Patent CA-2223341-C (CA)
Inventor: KOMAZAWA HIROSHI
IPC: G02B6/35
Filed: 1997-12-03
Granted: 2002-10-01
Abstract: To know an optical path switching error, a stepping motor is rotated at a predetermined angular step so as to couple an optical fiber collimator attached to its rotating shaft to an optical fiber collimator of optical fiber collimators that is designated by a designation signal. The direction of the optical axis of the optical fiber collimator is detected by a slit disk attached to the rotating shaft, and sensors for detecting slit arrays formed in the slit disk.  Detection signals from the sensors are determined to correspond to the designation signal.
Patent CA-2229926-C (CA)
Inventor: PARENT LUC
IPC: G10K11/00
Filed: 1996-08-30
Granted: 2002-02-26
Abstract: An ultrasonic device for detecting concentrations of solids or positions of solid/liquid interfaces in liquid media, particularly Bayer process liquids. The device comprises at least one piezoelec-tric element provided with electrodes; electrical circuit elements connected to the electrodes for conveying electrical signals, in use, to and from control ap-paratus; an ultrasound-transparent win-dow, made of glassy carbon, positioned adjacent to the or each piezoelectric ele-ment; a protective matrix, preferably of epoxy resin, embedding and surround-ing said the or each piezoelectric element and the electrodes while allowing ultra-sonic waves to pass through the or each adjacent window to or from the piezo-electric element; and an external pro-tective cover, preferably comprising an elastomer that is resistant to caustic al-kali and has a smooth and non-porous surface, forming an exterior of the de-vice except at the or each window. The use of glassy carbon for the windows makes the probes resistant to corrosion and scaling without impeding the effec-tiveness of the device. Further improved scaling resistance is provided by an elas-tomeric material preferably used as the external protective cover.
Patent CA-2233463-C (CA)
Title: An information encryption method
Inventor: BODIN ROLAND
IPC: H04J3/02
Filed: 1996-09-18
Granted: 2007-11-20
Abstract: The present invention relates to various methods of encrypting an information flow (speech or data) which is to be transmitted in a mobile radio system. The mobile radio system transfers information in accordance with the time division multiple access concept (TDMA) between a network (MSC, BSS) and a specific mobile station (MS) from among a plurality of mobile stations. The proposed encryption methods are used when information (B1, B2) of a given user shall be transferred in two or more time slots (TS1, TS2) within a single frame. In accordance with the inventive encryption methods, the various parameters (Kc, FN, PS) used in the encryption process are modified in dependence on the ordinal number of each of the used time slots in a frame. For instance, the encryption key (Kc) and the frame number (FN) are modified in dependence on the ordinal number (TSn) of the relevant time slot and the known encryption algorithm (A5) is used to obtain a modified encryption sequence (PSm'). This obviates the need to make substantial changes to the system signalling protocols and hardware.