baber/WOPTO huggingface dataset:
Patent CA-2257184-C (CA)
Inventor: AMICHE FREDERIC
IPC: A61Q11/00
Filed: 1997-06-04
Granted: 2003-05-13
Abstract: The invention discloses an abrasive precipitation silica useable in toothpaste compositions, said silica having a BET specific surface ranging from 15 to 300 m?2¿/g, a DOP oil absorption ranging from 40 to 160 ml/g, a median particle diameter of at least 10µm, generally ranging from 12 to 30µm, a particle cohesion factor of at least 85 % about for a median particle diameter ranging from 12 to 20µm. Method for preparing silica by reacting an alkaline metal silicate with an acidifying agent, to form a silica slurry, separating and optionally drying the recuperated silica suspension, the operation for forming the slurry being effected according to the following steps: a first step consisting in using one initial heel solution constituted of water, an electrolyte salt of the alkaline or alkaline-earth metal group and optionally of one acidobasic agent; a second step consisting in introducing the silicate and the acidifying agent, the reaction medium pH remaining constant from 4 to 7 and particularly from 5.8 to 6.7; and a third optional step, consisting in acidifying the reaction medium until a silica slurry with a pH of less than 6 and particularly of 4 is obtained. The silica is useful in toothpaste compositions. Toothpaste compositions containing the said silica are also disclosed.
Patent CA-2261022-C (CA)
Title: System for enhancing cardiac signal sensing by cardiac pacemakers through genetic treatment
Inventor: MORISSETTE JOSEE
IPC: A61B17/34
Filed: 1997-04-04
Granted: 2006-09-05
Abstract: The present invention provides delivery systems for delivering ion channel protein genetic material to cardiac cells in areas adjacent to where an electrode is to be positioned in a patient's heart to improve or correct the signal to noise ratio of cardiac signals, such as the P-wave. More specifically, there is provided a system for delivering sodium ion channel proteins or nucleic acid molecules encoding sodium ion channel proteins to a site in the heart adjacent to an electrode to increase the expression of the same, thereby enhancing the cardiac signal amplitude and enabling improved sensing of cardiac signals by an implanted pacemaker.
Patent CA-2267981-C (CA)
Title: Enhanced image processing for a three-dimensional imaging system
Inventor: FENSTER AARON
IPC: G01S15/89
Filed: 1997-11-28
Granted: 2004-10-19
Abstract: The present invention provides a depth-limited image processing means employ ed in combination with a three-dimensional ultrasonographic system whereby, from a model representing at least a portio n of a three-dimensional volumetric array, a user selects a ray-depth from at least one face of the model thereby forming a "thick- plane" region of interest. All voxels within the "thick-plane" are processed successively according to a user selected imaging technique along the depth of the ray. The results of the processing are projected onto corresponding screen pixels to produce an enhanced three-dimensional image. In another embodiment, an adaptive depth-limited image processing means is employed whereby voxels are first checked against a user selected condition. Voxels meeting this condition are then processed as above to produce an enhanced three-dimensional image. The user selected imaging technique may include, but is not limited to, Texture Mapping, Maximum Intensity Projection (MIP), Conditional MIP (CMIP) and/or Ray Summation (Raysum).
Patent CA-2268521-C (CA)
Inventor: HUOVILA JYRKI
IPC: D21F1/02
Filed: 1997-10-09
Granted: 2006-08-29
Abstract: The invention concerns a stock feed system for a multi-layer headbox (10). A  stock concept (M1, M2 ...) is passed into each inlet header (11, 12, 13) in the multi-layer headbox (10), which stock concepts have been produced out of the same fresh stock (M) by adding to the fresh stock the necessary chemicals and fillers. The system comprises one single fresh-stock container (17), and there are stock lines (18a1, 18a2; 18a2.1, 18a2.3) into which the fillers, additives and equivalent are added in compliance with the requirements of each concept. The stock feed system of the multi-layer headbox comprises at least one such fibre distributor (200a1, 200a2, 200a3) by whose means long fibres are transferred out of the stock that forms the surface layer (a1; a2) of the paper into the stock that forms a layer placed into the interior of the paper, preferably the middle layer (b), in which connection fibres of shorter length, compared with the average distribution of fibres in the basic stock derived from the stock container (17), are allowed to remain in the surface layer (a1; a2) of the paperboard, and longer fibres, compared with the average distribution of fibres, are allowed to remain in the middle layer (b) and/or are transferred into the middle layer.
Patent CA-2270580-C (CA)
Inventor: BUDD ALFRED L
IPC: A61G3/06
Filed: 1999-04-30
Granted: 2008-01-29
Abstract: Improvement in wheelchair lifts generally of the dual hydraulic parallelogram type employing a lever arm assembly which assists in the rotation of the platform from the stowed position to the horizontal deployed position, by providing a gas spring disposed in the lever arm assembly connected at an outboard end to the lifting mechanism link and at an inboard end to at least one of the A arm, the B arm or the common pivot pin of the lever arm assembly. The outward force of the gas spring causes the sliding shoe of the lever arm assembly to maintain contact with the outer face of the lower link of the lifting parallelogram so that upon deployment of the lift during the gravity down phase from stowed position to horizontal transfer position, the inboard end of the platform is pulled up so that it rotates smoothly and is not subjected to free fall. This lever arm follower force member can be used alone or in conjunction with a deployment assist gas spring disposed in the lifting parallelogram, alone or in combination with "reverse"  type torsion springs disposed in one or more of the common pivot in the lever arm assembly or a pivot in the lifting assembly.
Patent CA-2274292-C (CA)
Inventor: OSAKI YOSHIRO
IPC: H04L12/46
Filed: 1999-06-09
Granted: 2006-04-11
Abstract: A communication network system comprises ring systems (A, B, C, D) and a common node device 20 that is connected in common to ring circuits (5A, 5B, 5C, 5D) of each of the ring systems (A, B, C, D) and that gathers data from each of the ring circuits (5A, 5B, 5C, 5D) relaying it to a relay circuit 30. The common node device 20 accommodates virtual channel paths within all the ring circuits (5A, 5B, 5C, 5D) by means of a virtual path switching path. The relay transmission is realized by means of virtual path switching control that uses this common node device 20 and virtual channel switching control that uses each of the ring nodes within the ring circuits (5A, 5B, 5C, 5D).
Patent CA-2282298-C (CA)
Inventor: HEFFELFINGER DAVID M
IPC: G01N27/447
Filed: 1998-02-24
Granted: 2006-09-19
Abstract: A method and apparatus for achieving uniform illumination in an electrophoresis apparatus is provided. Uniform illumination allows quantitative measurements of anelectrophoresis gel to be made, thus increasing the information which can be obtained from an electrophoretic analysis. Uniform illumination is achieved by scanning the light source (505), preferably in a trans-illumination mode, across the sample gel in a direction perpendicular to the axis of the source. The light source is comprised of one or more light bulbs (505) placed in a light tray (503). Variations in light intensity near the source end portions may be minimized using a variety of techniques including extended light bulbs, filters, reflectors, diffusers, or supplemental sources.
Patent CA-2285377-C (CA)
Title: Improvements in thermal cycler for pcr
Inventor: ATWOOD JOHN G
IPC: C12M1/00
Filed: 1998-03-30
Granted: 2004-08-17
Abstract: An instrument for performing highly accurate PCR employing an assembly, a heated cover and an internal computer. The assembly is made up of a sample block (36), a number of Peltier thermal electric devices (39) and heat sink (34), clamped together. The sample block (36) temperature is changed exclusively by the thermoelectric devices (39) controlled by the computer. The sample block (36) is of low thermal mass and is constructed of silver. The Peltier devices are designed to provide fast temperature excursions over a wide range. The heat sink (34) has a perimeter trench (44) to minimize edge losses and i s adjacent to a continuously variable fan. A perimeter heater is used to improve the thermal uniformity across the sample block (36) to approximately +/- 0.2 .degree.C.
Patent CA-2288361-C (CA)
Inventor: GAUDET DANIEL
IPC: A61K36/185
Filed: 1999-11-02
Granted: 2009-03-24
Abstract: A process is disclosed, for preparing a derivative of a targeted natural product from plants. The targeted natural product is extracted from the desired part of the plant and the targeted natural product is transformed into the desired derivative(s). Both the extraction and transformation are carried out in a single step consisting of macerating the desired part of the plant in a composition comprising an organic solvent and a reactive agent. This process is particularly useful for preparing derivatives of betulin or lupeol from bark of birch.
Patent CA-2288383-C (CA)
Inventor: LUCIER CARY
IPC: A63H33/04
Filed: 1999-11-02
Granted: 2002-06-04
Abstract: A set of elements used for building easily disassembled structures comprises a plurality of building cards. At least one surface of each card is provided with protrusions extending normally therefrom. When an edge of a first card is in abutting contact with one or more protrusions of a second card, the one or more protrusions prevent the first card from sliding beyond a point or locus defined by the one or more protrusions thereby permitting the first card to be stably leaned against a third card, and so on, to create supported structures constructed from a plurality of the building cards.
Patent CA-2289293-C (CA)
Title: Field marker control system for agricultural planters
Inventor: BURNS DUSTIN G
IPC: A01B73/00
Filed: 1999-11-10
Granted: 2009-01-20
Abstract: A control system is provided for automatically deploying the field markers on an agricultural planter in an alternating manner without requiring operator input. The control system utilizes a proximity sensor to determine whether the tool bar is coming from the lowered working position to the raised headland position or vice versa. Solenoid valves in the hydraulic circuit to the field marker actuators are activated to retract both actuators to retract the deployed one of the field markers when the tool bar is moved into the headland position. When the tool bar is returned to the working position after making a turn at the field headlands, the control system remembers which field marker had just previously been deployed and then extends the other field marker to score the field. The control system permits the operator to remain attentive to the turning of the tractor and implement at the headlands and the setting of the planting implement into the ground at the proper location for planting the crop.
Patent CA-2289764-C (CA)
Inventor: CLAESSENS DOMINIQUE PAUL GERAR
IPC: H04H20/38
Filed: 1998-05-12
Granted: 2005-07-12
Abstract: System for testing audio visual stimuli, such as television series, commercials, etc. from a complex of interactions between stimuli, consumers and environmental factors, which system comprises: one or more sources of audio visual stimuli; means connected to said sources for presenting the stimuli to respondents; switching means to be operated by said respondents for issuing commands such as a command to end the presentation of a stimulus; means for registering the moments at which the switching means are operated; whereby especially for determining the communicative performance qualities of audio visual stimuli, the system furthermore comprises: a generator for generating further stimuli, such as textual information including questions, messages, commands and instructions; means to be operated by the respondents for providing responses to said further stimuli such as providing answers to questions and providing reasons, such as reasons for ending the presentation of stimuli; means for registering the responses provided by said respondents.
Patent CA-2289943-C (CA)
Title: Solid-phase nucleic acid isolation
Inventor: RUDI KNUT
IPC: C12Q1/68
Filed: 1998-05-13
Granted: 2009-05-12
Abstract: The present invention provides a method of isolating nucleic acid from a sample of cells, said method comprising: (a) binding cells in said sample to a solid support to isolate cells from the sample; (b) lysing the isolated cells; and (c) binding nucleic acid released from said lysed cells to said same solid support and a kit for carrying out such a method. '1'he method may advantageously be used to prepare nucleic acid for use in a nucleic acid-based target cell detection method.
Patent CA-2292200-C (CA)
Inventor: HICKMOTT ROBERT C
IPC: G09F3/02
Filed: 1999-12-15
Granted: 2008-08-12
Abstract: A tag has a body and an integral attachment end having a die cut pattern of slots defining mating inwardly projecting tangs of differing lengths to provide an adjustable diameter aperture upon deflection of the tangs. The tangs provide secure gripping of the tag to objects preventing inadvertent removal but allowing manual removal when desired.
Patent CA-2300468-C (CA)
Title: Security alarm keypad with message alert
Inventor: PARKER JAMES
IPC: G08B25/08
Filed: 2000-03-10
Granted: 2009-11-24
Abstract: A security alarm system is adapted to retrieve e--mail status information and provide an alert signal for the user of the system that e-mail has been received and is awaiting retrieval. Preferrably, the keypad of the security system includes a visual indicator which is activated when e-mail is received. The security alarm system uses the control panel and the auto dialer associated therewith, to contact the e-mail server and receive status information of one or more e-mail accounts. The control panel can contact the e-mail provider on a predetermined basis, or on a user scheduled basis. The accounting system's capability to initiate telephone communications and process signals from a remote computer is advantageously used for e-mail retrieval.
Patent CA-2302477-C (CA)
Inventor: OSTGAARD ODD TERJE
IPC: A61M5/00
Filed: 1998-08-05
Granted: 2007-06-05
Abstract: Safety box/combustion container (12) made from a laminated and mainly flat material (10) from recirculated, quality sorted cardboard material by folding around a number of side flaps (A-M) around pressed folding lines (a-m), in particular for temporary, and safe storage of possible contagious surgical waste material, for subsequent destruction.
Patent CA-2313336-C (CA)
Title: High luminance-phosphor and method for fabricating the same
Inventor: YUN SUN-JIN
IPC: C09K11/56
Filed: 2000-07-04
Granted: 2012-09-25
Abstract: There is provided for a method for fabricating a phosphor including host material regions to accelerate electrons and light-emitting regions containing light-emitting center ion. In the present invention, the phosphor is manufactured by several ten to several thousand repetitions of host material growth reactions and growth reactions of light-emitting region separately, in turn. Wherein the metalorganic compound including Pb covalent-bonded to organic functional group is used as a Pb-precursor and the Pb-precursor is reacted with H2X (X = S or Se), thereby, PbX being added into the host material. By this, the method for fabricating the phosphor in accordance with the present invention provides the phosphor exhibiting high luminance and high pure color. There are described a method for fabricating PbX (X - S or Se) and a method for fabricating an electroluminescent device including the phosphor. 50
Patent CA-2318307-C (CA)
Inventor: GLEASON DAVID H
IPC: A61B17/34
Filed: 1999-01-14
Granted: 2009-01-06
Abstract: The present invention is a catheter system (10) having an epidural needle (12), an electrically conductive stimulation wire (14) attached to the needl e (12), a multi-purpose connector (16) which is adapted to connect to intravenous tubing for supplying local anesthesia, and an epidural catheter (20) for supplying regional anesthesia. When the connector (16), and needle (12) are connected to each other, an operator can insert the needle (12) into a patient with th e needle's distal end within the nerve sheath, proximate to the nerve plexus. A voltage is applied via the wire (14) to determine correct positioning. Then, the operator can slide the catheter (20) through the connector (16), and needle (12) until the catheter's distal end is protruding out of the needle's distal end into the nerve sheath, proximate to the nerve plexus. Then, the needle (12) (and its associated wire), and the connector (16) (and its associated tubing) are slidably removed from the catheter (20) whereby the catheter (20) may be left in plac e.
Patent CA-2318942-C (CA)
Inventor: FORLER JOSEPH WAYNE
IPC: H04N7/16
Filed: 1997-12-18
Granted: 2005-04-05
Abstract: An apparatus and a method for preventing a user from by-passing a viewer blocking system using program related information, such as content ratings, included in a program signal. The present invention prevents the user from exploiting the time delay associated with detecting, decoding and comparing the program related information by switching channels to observe portions of objectionable programs before the blocking system can react. The present system comprises a processor (110) which controls the output of a selected program signal (VIDEO, VIDEO IN, AUDIO      IN) in response to a determination of whether an associated program related information melts a user selected blocking criteria.      The processor blocks display of a program signal when a predetermined sequence of signal channel selections is detected and then continues to block the display of the program signal at least until the determination is performed. The predetermined sequence of signal channel selections may comprise continual re-tuning of the same channel and/or switching between two channels. The present method comprises detecting a particular sequence of signal channel selections and blocking the display of the program signal upon detecting the predetermined sequence. If the predetermined sequence of signal channel selections is detected the display blocking is maintained at least until a program related information associated with the program signal is detected and a determination of the satisfaction of a user selected blocking criteria is performed.
Patent CA-2320107-C (CA)
Title: Tunable bragg gratings and devices employing the same
Inventor: SRINIVASAN BALAJI
IPC: G02B6/136
Filed: 1999-02-08
Granted: 2009-05-12
Abstract: A D type optical fiber (10') was adhered to a conductive layer (18) through the flat side of the optical fiber (10') and the cladding (16) was removed in area (20) without damage to the core (14). Electrical connection is made through the projection (24) which allows good contact when used alone or in conjunction with a previously deposited conductor (20). The cladding removal process may also be done on both sides when a round optical fiber is used rather than a D type fiber. The electrooptical devices made using this process may also include bragg gratings which may be impressed using an applied voltage, UV radiation, thermal heating or a combination of any of these.
Patent CA-2321375-C (CA)
Inventor: HIROKAWA KAZUHARU
IPC: F01D5/08
Filed: 2000-09-27
Granted: 2005-11-22
Abstract: The invention provides a steam-cooled gas turbine with a plurality of blades cooled by a steam supplied from an external steam source. The rotor of the steam-cooled gas turbine is composed of a plurality of rotor disks connected by a plurality of spindle bolt extending through the rotor disks. The rotor includes a steam supply passage extending in the rotor, a steam supply chamber for distributing the steam to the respective blades, a steam recovery chamber for equally receiving the steam used for cooling the blades, and a steam recovery passage for directing the steam from the steam recovery chamber to the outside of the steam-cooled gas turbine. A sealing member in the form of substantially a ring, for sealing the steam leakage between the rotor and the spindle bolts, is disposed about each of the spindle bolts. The rotor includes recesses, disposed coaxially with the respective spindle bolt holes, for receiving the sealing members. A plurality of holding members holds the sealing members in place within the respective recesses by axially clamping the sealing members and engaging with the inner walls of the recesses.
Patent CA-2322213-C (CA)
Title: Off-line broadband network interface
Inventor: OJARD ERIC
IPC: H04L12/56
Filed: 1999-02-26
Granted: 2008-01-29
Abstract: A network interface is presented that receives packet data from a shared medium and accomplishes the signal processing required to convert the data packet to host computer formatted data separately from receiving the data packet. The network interface receives the data packet, converts the analog signal to a digitized signal, and stores the resulting sample packet in a storage queue. An off-line processor, which may be the host computer itself, performs the signal processing required to interpret the sample packet. In transmission, the off-line process converts host-formatted data to a digitized version of a transmission data packet and stores that in a transmission queue.  A transmitter converts the transmission data packet format and transmits the data to the shared medium.
Patent CA-2323559-C (CA)
Title: Revetement latent utile pour une reparation de surfaces metalliques
Inventor: BOYER CHARLES E III
IPC: C09D7/48
Filed: 1998-06-29
Granted: 2007-08-28
Abstract: L'invention concerne une composition de revêtement anticorrosion destinée à être appliquée sur une surface métallique, qui contient des microcapsules cassables qui se rompent et libèrent un fluide lors d'un choc ou d'une autre contrainte susceptible d'endommager le revêtement. Le fluide provenant des microcapsules contient un constituant formateur de film qui sert à couvrir la zone endommagée du revêtement, ainsi qu'un inhibiteur de corrosion utile pour la surface métallique.
Patent CA-2325446-C (CA)
Inventor: KEKKI SAMI
IPC: H04B7/02
Filed: 1999-03-31
Granted: 2005-09-27
Abstract: The invention is directed to a method for controlling delays in a cellular telecommunications network. The delay control method according to the invention is based on a hierarchical structure of delay controlling entities, which preferably communicate only with entities directly above or below them in the hierarchy. In the downlink direction, an entity receiving data, such as a base station or a splitting unit, sends a timing report to the entity sending the data if the data is received too early or too late, whereafter the sending entity may adjust the sending time of data. The same reporting and adjusting process may be repeated through all levels of the control hierarchy, resulting in a collective control of delays from the top of the hierarchy, for example from a RNC, to the bottom, for example to a base station. In the uplink direction, a higher level entity receiving data from a lower level entity may command the lower level entity to adjust the sending time, if the data is received too early or too late. When the same action is repeated in all levels of the hierarchy, a collective control of delays is achieved for the tink between the lowest level, e.g. the base station, and the highest level, e.g. a RNC.