baber/WOPTO huggingface dataset:
Patent CA-2177655-C (CA)
Title: Electroporation and iontophoresis apparatus and method for insertion of drugs and genes into cells
Inventor: CRANDELL LOIS J
IPC: A61M29/00
Filed: 1995-01-20
Granted: 2001-09-25
Abstract: A catheter device having a plurality of axially extending, circumferentially  spaced electrodes carried thereby, infusion means for infusion of fluid medium for carrying genes and drugs, and expandable sealin g means at each end of the electrodes for sealing off an d confining the therapeutic medium to the area to be treated is inserted into a selected blood vessel of a patient and advanced to a p reselected location within the blood vessel where cells on or near the wall of the vess el are to be treated. Once in place, the catheter device  is expanded so that the plurality of axially extending, circumferentially spaced electro des carried thereby are in contact with the inner wall o f the blood vessel and seals at each end of the electrodes expand and seal the catheter device in the preselected location. A quantity of therap eutic genes or drugs is infused into the area of the electrodes via a tube and a c onventional pump. A power pack connected to the electrod es is energized subjecting the cells to electric fields of predetermined amplitude  and duration making the walls of the cells transiently permeable to enabling therapeutic genes or drugs carried by the fluid medium to enter the cells without killing them.
Patent CA-2179835-C (CA)
Inventor: BERTOCCI GUIDO
IPC: H04M1/72505
Filed: 1996-06-25
Granted: 2000-05-16
Abstract: A cordless telephone provides for increased features available at a portable unit that have heretofore been available only at a base unit which combines a cordless telephone fixed station and telephone answering device. The cordless telephone includes a call screening feature which allows a user at the portable unit to monitor incoming messages received over telephone lines as they are being recorded at the telephone answering device without the user having to configure the portable unit in any way during actual receipt of the message. A built-in loudspeaker is incorporated into the portable unit so that the user may easily listen to the incoming messages. Once receipt of the incoming message is completed, amplifier circuitrydriving the loudspeaker is turned off. The cordless telephone also includes a caller-ID feature which informs the user at the portable unit of the identity of a preidentified calling party before the call is answered. This operation is achieved by the user entering into a memory table in the telephone each one of a plurality of desired telephone numbers for subsequent access and comparison when a caller-ID number is received from a calling party. The user also associates with each telephone number a voice message which is subsequently generated in the loudspeaker in the portable unit in response to a favorable comparison between said caller-ID signal and said stored telephone number.
Patent CA-2185593-C (CA)
Title: Portable loudspeaker/directional microphone peripheral
Inventor: WELSH CHRISTOPHER T
IPC: B29D22/00
Filed: 1996-09-16
Granted: 1999-09-28
Abstract: A loudspeaker system which can be utilized with laptop PCs employs a loudspeakerenclosure having a unique shape which can easily be mounted to the back of a display of the laptop PC and also be easily removed for storing and/or transporting.  Additionally, the enclosures of the loudspeaker system have been designed to allow the physical coupling of them together into a compact package so that they can be easily stored and /or transported, for example, in a briefcase for use during transit or at a remote location.  This coupling of the loudspeaker enclosures is realized by employing a loudspeaker enclosure which is in the form of an "L-shape". Consequently, the loudspeaker enclosures can be placed upon each other and locked into place forming a relatively small compact package.
Patent CA-2189583-C (CA)
Inventor: WEED JOHN M
IPC: G03G15/08
Filed: 1996-03-15
Granted: 2000-11-14
Abstract: Une cartouche servant à l'application d'un toner a un corps creux pour recevoir le toner avec une portion d'extrémité ouverte à laquelle vient se fixer un capuchon d'extrémité. Le capuchon a au moins une ouverture d'application. Le capuchon d'extrémité peut tourner par rapport au corps creux contenant le toner. Un agitateur est placé dans le corps creux contenant le toner et il est solidaire du capuchon, avec lequel il peut tourner. Le corps creux étant stationnaire, la rotation du capuchon provoque un déplacement par l'agitateur du toner contenu dans la cartouche vers l'ouverture d'application d'où le toner sort vers l'appareil récepteur de toner.
Patent CA-2191034-C (CA)
Inventor: WILLS MARK E
IPC: E04B1/76
Filed: 1996-11-22
Granted: 2005-05-24
Abstract: A vapour barrier panel is designed specifically for application to the area between the floor joists and under the sub floor and in front of a concrete basement wall. The panel body includes a flat panel section with a flange at the top edge at right angles to the top edge and two flanges down each side. The panel body is thus applied so that the top flange engages against the underside of the sub floor and the side flanges engage against the sides and bottom respectively of the floor joists. The panel is semi rigid so they can be applied in place simply by sliding into position and abutting against a bead of sealant applied to the floor and floor joists or preapplied to and carried on the outside surface of each flange.
Patent CA-2191530-C (CA)
Title: Reusable containers for the preservation of fresh fruits and vegetables
Inventor: EMOND JEAN-PIERRE
IPC: B65D81/26
Filed: 1996-11-28
Granted: 2005-06-07
Abstract: A durable container for storing and transferring crops, such as fruits and vegetables, from the field to market is described. The container is adapted to provide efficient air or water circulation for the preservation of crops.  Particularly, the container contains openings in the floor and the sides of the container, which are of a defined size and proportion of the total area, to allow for effective air or water circulation.
Patent CA-2195085-C (CA)
Title: Transmission line power controller with a continuously controllable voltage source responsive to a real power demand and a reactive power demand
Inventor: SCHAUDER COLIN D
IPC: H02J3/18
Filed: 1995-06-13
Granted: 2000-04-11
Abstract: A transmission line power controller (50) for controlling the flow of electric power in an alternating current three-phase transmission system (34) is described. The power line controller (50) includes a parallel inverter (22) connected to a series inverter (24) through a dc link (26). The parallel inverter (22) is connected in shunt to the transmission system (34) through a shunt transformer (36). The series inverter (24) is connected in series with the transmission system through a series transformer (38). A transmission line power control circuit (52) is used to specify a desired real power demand and reactive power demand for the transmission system (34). The power control circuit (52) processes this information along with a transmission line voltage vector and a transmission line current vector to produce a voltage source reference signal that is applied to the series inverter (24). In response to the voltage source reference signal, the series inverter (24) produces an injected voltage vector into the transmission system (34). The injected voltage vector forces the transmission line current vector to a desired value corresponding to the specified real power and reactive power demand. Thus, desired real power and reactive power flow is rapidly achieved on the transmission system (34).
Patent CA-2195253-C (CA)
Inventor: GISKO JERRY A
IPC: B29C48/525
Filed: 1997-01-16
Granted: 1999-07-13
Abstract: An improved conveyer apparatus for processing and degassing a mixture of materials for forming solid surface end products, such as cultured marble and other polymer casting products.  The conveyer includes a conveyer housing with an internal passageway having a conically shaped upstream section and a downstream section.  A rotatable screw is located in the internal passageway and has a shape that corresponds to the shape of the internal passageway, so that an upstream section of the screw is conically shaped.  The upstream section of the passageway has an inlet that connects to a source of materials, such as a mixer, and the downstream section has an outlet that permits the mixture of materials to exit the conveyer apparatus.  A vacuum source is connected to the conveyer housing to remove gases from the mixture as it is being conveyed through the conveyer.
Patent CA-2196914-C (CA)
Inventor: RADEMACHER WILHELM
IPC: A01N37/04
Filed: 1997-02-05
Granted: 2007-04-10
Abstract: A mixture consisting essentially of: a) one or more dicarboxylic acid esters of the formula I  ROOC-A-COOR (I) in which the radicals R independently of one another are alkyl groups having 1 to 20 carbon atoms and A is alkylene having 1 to 20 carbon atoms, alkenylene or alkynylene each having 2 to 20 carbon atoms, cycloalkylene or cycloalkenylene each having 5 or 6 carbon atoms or phenylene and b) the product (II) of the reaction of a triglyceride based on carboxylic acids having 2 to 30 carbon atoms and ethylene oxide and/or propylene oxide in the presence of a base, their use for the production of crop protection compositions, the herbicidal crop protection compositions, their use for controlling undesired plant growth, and spray mixtures comprising the compositions are described.
Patent CA-2197304-C (CA)
Title: Acetic anhydride activation for c-terminal protein sequencing
Inventor: BOYD VICTORIA L
IPC: C07K1/12
Filed: 1995-08-29
Granted: 2002-04-16
Abstract: A method is provided for C-terminal sequencing of a protein or peptide. An important feature of the method is the formation of an oxazolone moiety at the C-terminus of a protein or peptide by treatment with acetic anhydride under basic conditions followed by conversion of the oxazolone to a thiohydantoin moiety by treatment with thiocyanate under acidic conditions. Yields of thiohydantoin are further enhanced by delivering thiocyanate as the conjugate acid of a sterically hindered alkylammonium cation.
Patent CA-2197311-C (CA)
Title: Credit/service card with expanded surface area
Inventor: GUNN ROBERT T
IPC: B42D15/10
Filed: 1995-08-11
Granted: 2000-05-09
Abstract: A credit/service card with expanded surface area includes a first card member (60), a second card member (62) and a hinge (64) connecting the two card members. The credit/service card also includes a fastener (74) for holding the credit/service card in a closed position.
Patent CA-2200300-C (CA)
Title: Efficient optical wavelength multiplexer/de-multiplexer
Inventor: BALL GARY A
IPC: H04B10/278
Filed: 1995-09-22
Granted: 2001-06-26
Abstract: An efficient wavelength multiplexer/demultiplexer includes a plurality of 2x 2 optical couplers (122, 180, 200, 220), each having a pair of matched grating s (130, 142; 182, 184; 202, 204; and 222, 224), having bandpass wavelengths (.lambda.1, .lambda.2, .lambda.3, .lambda.4), respectively, attached to two of the ports. An input signal (116) enters a port (120) and is split and reflected off the gratings (130, 142) and then recombined so as to provide a ll the input signal (116) at an output port (150) and no reflection out of the port (120). Another input signal (154) is incident on the grating (142) whic h is passed by the grating (142) and is coupled onto the output port (150) wit h the signal (116) as a signal (160). A similar arrangement exists for the oth er couplers (180, 200, 220) connected in series, each of which adds another inp ut wavelength. Alternatively, in a de-multiplexing application the signal (116)  may be broadband and the signals (154, 190, 206, 230) would be separate outp ut wavelengths.
Patent CA-2203319-C (CA)
Title: Cyclodextrins in dental products
Inventor: NELSON DENNIS GEORGE ANTHONY
IPC: A61K8/37
Filed: 1997-04-22
Granted: 2000-11-21
Abstract: Oral rinse and dentifrice compositions, comprising a phenolic selected from the group consisting of menthol, eucalyptol, methyl salicylate, thymol, triclosan, and mixtures thereof; and a cyclodextrin selected from the group consisting of hydroxypropyl, .beta.-cyclodextrin, hydroxyethyl .beta.-cyclodextrin, hydroxypropyl .gamma.-cyclodextrin, hydroxyethyl .gamma.-cyclodextrin, .alpha.-cyclodextrin, methyl .beta.-cyclodextrin, and mixtures thereof. These compositions are useful in retarding the development of plaque, treating gingivitis, and in treating the presence of micro-organisms in the oral cavity.
Patent CA-2204811-C (CA)
Inventor: REVERMAN JEFFREY J
IPC: C23C30/00
Filed: 1997-05-08
Granted: 2006-07-18
Abstract: A method for repairing an environmental protective coated article portion of a gas turbine engine article made of a Ni base superalloy including Cr and at least about 6 wt. % total of Al and Ti comprises removing the coating, exposing the article portion to a reducing mixture of gases including, by weight, greater than 6% up to about 20% hydrohalogen gas with the balance principally hydrogen gas, and preferably about 10 - 15 wt. % hydrogen fluoride gas. Exposure is at a temperature in the range of about 1600° - 2000° F for a time, greater than about 2 hours, and preferably about 2 - 10 hours, sufficient to remove from within the article portion metal sulfides, Al, Ti, oxides of Al or Ti, or their combinations. Then the article portion is recoated. One form relates to weld repairing the article portion by removing A1 or Ti or both to a depth up to about 0.003". Another form removes metal sulfides, resulting from or relating to combustion, from within the body of the article portion to a depth up to about 0.005".
Patent CA-2206063-C (CA)
Title: Cdma communication method and spread spectrum communication system
Inventor: ARIYOSHI MASAYUKI
IPC: H04W76/02
Filed: 1997-05-26
Granted: 2001-08-07
Abstract: A frequency band for communication between a base station and mobile stations is divided into a reverse-link and a forward-link bands. In each of these bands, carrier frequencies are defined in correspondence with sub frequency bands each having one of several bandwidths. To each of these bands of each mobile station, a sub frequency band with a bandwidth matching a data traffic rate is assigned in advance. Each mobile station spectrum-spreads a reservation packet and transmits the resultant packet by a prescribed carrier frequency corresponding to the reverse-link sub frequency band. The base station spectrum-spreads a response packet and transmits the resultant packet by a prescribed carrier frequency corresponding to the forward-link sub frequency band. Each mobile station spectrum-spreads a data packet by a spreading code for data traffic channel specified in the response packet and transmits the resultant packet by the reverse-link carrier frequency.
Patent CA-2211349-C (CA)
Inventor: IVES MICHAEL
IPC: B60P1/43
Filed: 1997-07-24
Granted: 2002-05-28
Abstract: A tailgate ramp system comprising a pair of ramp members and an anchor bar which is removably attachable to the latch bolts or to the latch mechanisms on the tailgate of a pickup truck. The anchor bar of the present invention comprises a C-shaped, angle-iron structure having a stem member and two arm members pointing at right angle from the stem member, one at each extremity of the stem member. There is also provided an anchor rod affixed to the stem member for retaining the upper ends of the ramp members extending downward from the tailgate. In a first variant of the anchor bar, each arm member has an opening therein which corresponds in shape and location relative to the length of the stem to a configuration and spacing of one of the latch bolts on the tailgate relative to a width of the tailgate. In a second variant of the anchor bar, each arm member has a pin mounted thereon for engagement with pin-latching mechanisms of modern tailgates having such closures. These pins correspond in shape and location relative to the length of the stem member to a configuration and spacing of the pin-latching mechanisms relative to a width of the tailgate. The tailgate ramp system of the present invention including an anchor bar of a first or a second variant is thereby mountable on conventional tailgates having latch bolts or on newer tailgates having pin-latching mechanisms.
Patent CA-2212496-C (CA)
Inventor: BENVEGNU CARLO
IPC: F42B8/14
Filed: 1997-08-06
Granted: 2005-05-03
Abstract: A projectile for firearms has a body (11) consisting of a plurality of disc-shaped elements (14) coaxially fitted in a holding cup (15) forcedly filled therewith.
Patent CA-2231254-C (CA)
Title: Dispositif mobile de traitement des sols et procede associe
Inventor: STEPHENSON ROBERT JOHN
IPC: B03D1/14
Filed: 1996-09-13
Granted: 2001-10-23
Abstract: L'invention concerne un dispositif mobile et un procédé pour traiter les sols pollués. Le dispositif consiste en trois sous-unités reliées: un réacteur de lit fluidisé (10, 200) permettant de trier une boue de sol aqueuse en se basant sur la taille des particules; une unité d'extraction des métaux permettant d'éliminer les métaux lourds et les autres polluants de la fraction de sol polluée; et un système de traitement de l'eau utilisant un procédé pour impuretés de haute densité permettant d'éliminer les métaux de la phase aqueuse polluée. Le réacteur de lit (10, 200) comprend une première chambre relativement petite (12, 202) et une seconde chambre relativement grande (14, 204), partiellement séparées par un déflecteur (16, 206). On injecte du gaz pressurisé dans la première chambre (12, 202) de façon à créer un mélange turbulent de sol brut et d'eau, ce qui entraîne un lessivage interparticulaire des surfaces de sol contribuant à l'abrasion et à l'élimination des polluants adsorbés. Les particules de sol sont triées en une première fraction contenant des particules polluées relativement petites et une seconde fraction contenant des particules non polluées relativement grandes. De préférence, on retire la première fraction sous forme de mousse de la partie supérieure du réacteur (10, 200). On retire de façon continue une boue de sol contenant la seconde fraction relativement non polluée de la partie inférieure du réacteur (10, 200). Dans l'un des modes de réalisation, on peut faire circuler la boue entre les première et seconde chambres de multiples fois, de façon à allonger le temps de séjour dans le réacteur (10, 200). On déshydrate la boue en aval de celui-ci et on recycle le filtrat aqueux. On peut également capter, purifier et recycler le gaz qui s'échappe du réacteur (10, 200).
Patent CA-2232143-C (CA)
Inventor: ELLIOTT TERRENCE CHARLES
IPC: B23B51/04
Filed: 1996-09-19
Granted: 2006-11-28
Abstract: A wood coring drill bit comprising a hollow tube having an internal bore (103) and an exterior (100) with equally spaced bodies (10) of substantially uniform width extending in a helical manner from a cutting end (10) of said drill bit, said bodies (10) defining equally spaced flutes (15) between the edges of adjacent bodies (10), each body (10) comprising a land (20) upstanding from a relief (21) at the leading edge of the body (10), a respective cutting face (12) and associated lip (25) being formed at the end of each body (10) at said cutting end. The wood coring drill bit is characterised by having three equally spaced bodies (10) and flutes (15) said cutting face (12) has an included angle which is preferably 125° for hardwood and drywood and 112° for softwood. The lip (25) has a lip clearance angle that is about 6° ~ 1°, the lands (20) on the bodies (10) extend for an axial distance of about 65 mm ~ 5 mm from said cutting end (101) and the internal bore (103) of the hollow tube is tapered outwardly from or adjacent the cutting end (101).
Patent CA-2233500-C (CA)
Title: Article inventory tracking and control system
Inventor: BRACE THOMAS J
IPC: G06Q20/20
Filed: 1996-09-27
Granted: 2008-05-13
Abstract: An article inventory tracking and control system tracks and controls removal of articles from a secured facility. Exemplary facilities in which the system may be useful include libraries, rental stores and retai l stores. Each article is marked with an EAS marker to prevent unauthorized removal. In the system, each user of a facility and each articl e in the facility is uniquely identifiable. Upon receiving the user and article information, the system queries a central database to ensur e that the user is a valid user and that the desired transaction is authorized. A receiving compartment is specifically designed to receive a particular type of article, such as a video or audio cassette. Sensors in the receiving compartment ensure that the article is properly placed within the receiving compartment. Proper placement of the article within the receiving compartment ensures that the marker is properly re/desensitized, and also ensures that only one transaction on one article can be performed at a time.
Patent CA-2236510-C (CA)
Inventor: EDWARDS NICHOLAS P
IPC: F16K1/44
Filed: 1998-05-04
Granted: 2003-09-02
Abstract: A two stage variable flow valve assembly for use in fluid handling.  The valve assembly includes a body with a flow restrictor disposed therein to define two internal chambers which are closed at one end by a wall and open at the opposite end by a discharge opening.  A valve having a bulb and a profiled valve stem extends axially through and is movable within the internal chambers to open and close the valve assembly for flow therethrough.  Flow is halted through the valve assembly when a portion of the profiled valve stem enters the flow restrictor, prior to the bulb's closing of the discharge opening.
Patent CA-2243322-C (CA)
Inventor: RASCH DAVID MARK
IPC: B29C35/10
Filed: 1997-01-16
Granted: 2003-12-23
Abstract: An improved papermaking belt useful in papermaking machines for making paper products. The belt comprises a resinous framework and a reinforcing structure, which reduces the pinholing in a finished paper web and the buildup of paper fibres on vaccuum dewatering machinery. The resultant paper product comprises an essentially macroscopically monoplanar network region and a dome region, in which the number of pinholes in the dome region of the finished paper web is reduced.
Patent CA-2247006-C (CA)
Title: Speech processing
Inventor: MILNER BENJAMIN PETER
IPC: G10L15/10
Filed: 1997-03-25
Granted: 2002-09-17
Abstract: Method and apparatus for generating features for use in speech recognition, said method comprising calculating the log frame energy value of each of a p re- determined number n of frames of an input speech signal; and applying a matr ix transform to the n log frame energy values to form a temporal matrix representing the input speech signal. The matrix transform may be a discrete  cosine transform.
Patent CA-2251667-C (CA)
Inventor: MARSH BRIAN D
IPC: G06Q10/10
Filed: 1997-04-11
Granted: 2007-02-13
Abstract: The present invention provides a method and apparatus for scheduling the presentation of a continuously-changing display (702) to computer users, and is particularly well-suited for use in an advertisement-supported e-mail service. An advertisement display scheduler (700) resident on a user's computer receives advertisements from a server system over a network. Upon receipt, the advertisement display scheduler (700) determines the priority of the advertisement (MSG01 ....      MSGnn) and assigns it to one of a plurality of prioritized advertisement queues (Qo ....      Qn). Each queue is sorted (701) according to predetermined scheduling criteria so that advertisements deemed "more important" are presented to a user first. The advertisement display scheduler (700) logs statistical information relating to the presentation of advertisements for use in updating the scheduling criteria, and makes such statistical information available to the server system.