baber/WOPTO huggingface dataset:
Patent CA-2220048-C (CA)
Title: Acellular pertussis vaccines and methods of preparation thereof
Inventor: VOSE JOHN R
IPC: A61P37/00
Filed: 1996-05-02
Granted: 2006-03-07
Abstract: A cellular pertussis vaccines comprise purified toxin or toxoid thereof, filamentous haemagglutinin, pertactin and fimbrial agglutinogens formulated to confer protection to at least 70 % of members of an at-risk population. The fimbrial agglutinogens may be prepared from a Bordetella strain, particularly a B. pertussis strain by a multiple step procedure involving extraction of the fimbrial agglutinogens from cell paste and concentrating and purifying the extracted material.
Patent CA-2220752-C (CA)
Inventor: ENGEL GERNOT MICHAEL
IPC: H04N7/15
Filed: 1996-05-15
Granted: 2002-04-30
Abstract: Video conferencing system including stations at a plurality of different sites, and in which system first and second video channels are simultaneously displayed at each site station on a picture-in-picture video monitor (24), a site controller (28) causes a video decoder (14) at the site to decode either a video signal generated at the site or a video signal received from another site via the first video channel. The site controller (28) also responds to a channel assignment signal generated by a system controller by assigning the first video channel to either a first predetermined broadcast frequency or to a second predetermined broadcast frequency and by assigning a second video channel carrying a video signal received from another site to the other available broadcast frequency. The system controller processes channel allocation requests signals with a predetermined priority from the different sites to generate the channel assignment signals.
Patent CA-2222784-C (CA)
Inventor: HAGEMEISTER ERIC PETER
IPC: A61F13/15
Filed: 1996-05-16
Granted: 2001-10-16
Abstract: The present invention relates to a process for making disposable absorbent articles comprising two materials (10 and 20) which are adhered to each othe r. Importantly, the process utilizes a continuous roll printing unit (30) to provide an adhesive (2) onto a discontinuous series of separated pieces of a  substrate material (10). This adhesive printing process can be used to provi de full surface covering adhesive areas without the need to cut through the adhesive (2) when separating the pieces of the substrate material (10) after  application of the adhesive (2).
Patent CA-2224258-C (CA)
Title: Surface controlled formation isolation valve adapted for deployment of a desired length of a tool string in a wellbore
Inventor: PATEL DINESH R
IPC: E21B34/10
Filed: 1997-12-09
Granted: 2006-08-01
Abstract: A method and apparatus is disclosed for building a tool string uphole of any desired length prior to lowering that tool string downhole into a wellbore for the purpose of performing wellbore operations downhole during a single trip into the wellbore. The apparatus includes a valve disposed between an upper section and a lower section of the wellbore and adapted to open and to close, the upper section of the wellbore being isolated from the lower section of the wellbore when the valve is closed. The tool string of any desired length is built in the upper section of the wellbore when the valve is closed and the upper section of the wellbore is isolated from the lower section of the wellbore.      The apparatus also includes a mandrel and piston, the valve being initially disposed in an open position and adapted to be changed from the open position to a closed position when the mandrel is shifted from one position to another position. An upper chamber communicates with a gas reservoir and a valve manifold at the surface. The manifold includes a slow bleed valve and a fast bleed valve disposed at the wellbore surface. A gas metering orifice separates the upper chamber from a lower chamber. The mandrel is shifted in one direction and the valve changes position when a gas is delivered from the surface of the wellbore to the upper chamber thereby moving the piston and the mandrel, the mandrel shifting in an opposite direction and the valve changing position again when the gas in the upper chamber leaks from the upper chamber to the fast bleed valve at the surface. The mandrel shifts in the one direction and the valve changes position again when the gas from the surface is delivered to the upper chamber. However, the mandrel does not shift in the opposite direction and the valve does not change position again when the gas in the upper chamber leaks from the upper chamber to the slow bleed valve at the surface.
Patent CA-2224792-C (CA)
Inventor: KLOKKERS KARIN
IPC: A61K9/48
Filed: 1996-06-13
Granted: 2003-01-07
Abstract: The invention relates to a pharmaceutical pre- paration which consists of or contains cyclosporin A, an emulsifying .alpha.-tocopherol derivative, an ethoxylation product of vegetable oils, fatty acids or fats as a further emulsifier and a pharmaceutically customary alcohol.
Patent CA-2232227-C (CA)
Inventor: VIGNEAU RICHARD J
IPC: B65H19/29
Filed: 1998-03-16
Granted: 2006-01-24
Abstract: A method and apparatus for handling logs of convolutely wound webs which includes providing a rewinder-tail sealer wherein a glue stripe is applied to a predetermined circumferential location on a partially unwound log and the log rewound by rolling on itself toward and into a pair of spaced-apart rollers, providing a path from the roller pair to log receiver wherein logs sequentially roll in the path, the path having fixed dimensions, operating the rewinder-tail sealer to develop logs of a first nominal diameter to enable the roller pair to controllably rotate each log for positioning the glue stripe at a first angular orientation, which in combination with the fixed dimensioned path enables each log to be received in the receiver with its glue stripe in a second angular orientation, changing the operation of the rewinder to develop logs of a second nominal diameter, and by correlating the second nominal diameter with the fixed dimensioned path to enable each second nominal diameter log to be received in said receiver with its glue stripe in the second angular orientation and adjusting the spacing between the roller pair to be slightly less than the second nominal diameter.
Patent CA-2232672-C (CA)
Title: Assembly for functional electrical stimulation during movement
Inventor: STEIN RICHARD B
IPC: A61N1/36
Filed: 1996-09-18
Granted: 2001-08-07
Abstract: The assembly comprises a band, mountable on the leg, carrying all of the components of the assembly to provide a self-contained unit. The components comprise: electrodes for stimulating a leg nerve; a V-shaped plate for conforming with the leg's tibia to reproducibly position the band so that the electrodes are located over the nerve; a tilt sensor for measuring the angular position of the lower leg; a control circuit for processing the sensor signal information and emitting pulses through the electrodes to stimulate the leg in response to phases of body movement; and a battery for supplying power to the tilt sensor, control circuit and stimulator. By comparing the assembly's stimulation states against a known template defining optimal stimulation states, stimulation threshold parameters can be fine tuned without the need for repeated trial and error testing by the user.
Patent CA-2233066-C (CA)
Inventor: FOLDEN THOMAS I
IPC: A61J1/05
Filed: 1996-09-27
Granted: 2004-08-10
Abstract: A method of peritoneal dialysis which utilizes a dialysis collection bag (10) connected to a drain tube (12) is disclosed. The collection bag (10) is sealed so that it is liquid tight and liquid cannot enter or leave it except through drain tube (12). Inside the collection bag (10) is a sterilization tablet (14) which preferably contains calcium hypochlorite of sufficient quantity to quickly sterilize 2 liters to 4 liters of used dialysis solution.
Patent CA-2235066-C (CA)
Inventor: BECKER MANFRED
IPC: B60T13/14
Filed: 1998-05-13
Granted: 2001-10-16
Abstract: A vehicle brake control valve includes a piston assembly which is movable a stepped cylindrical bore of a valve housing in response to an actuating force against the force of a spring. The piston assembly includes port control edges which control communication between a brake pressure chamber which can be connected to the vehicle brakes, areservoir, and a pump. Both the pump and the actuating force contribute to the brake pressure which builds up in the brake pressure chamber. The piston assembly includes an actuator piston and an annular piston that sealingly slides within a larger portion of the stepped bore. After the actuator piston moves a pre-set distance (H) it carries with it the annular piston. The annular piston, the actuator piston and a wall of the larger diameter portion of the stepped bore enclose a fill pressure chamber which is separated from the brake pressure chamber to achieve two-stage pressure build-up during manual braking (emergency braking) when the pump is inoperative. The fill pressure chamber and the brake pressure chamber are connected to each other via a pressure reducing valve which opens towards the brake pressure chamber.
Patent CA-2236810-C (CA)
Inventor: OHTA EIJI
IPC: H04N1/387
Filed: 1992-03-23
Granted: 2000-04-11
Abstract: An image processing apparatus previously stores information on particular kinds of image, determines the degree of similarity between an input full-color image signal and the information on particular kinds of image, controls conditions for addition of a particular pattern previously stored according to a result of the determination, and outputs an image by adding or not adding the particular pattern to the full-color image signal according to the addition conditions.
Patent CA-2237059-C (CA)
Title: Targeted adenovirus vectors
Inventor: CURIEL DAVID
IPC: A61K31/70
Filed: 1996-12-06
Granted: 2007-01-02
Abstract: The present invention provides means to modify the tropism of recombinant adenoviral vectors using genetic methods to alter the adenoviral fiber cell-binding protein. The present invention generates an adenovirus with modified fiber gene using a two-plasmid rescue system for derivation of adenoviral fiber recombinants.
Patent CA-2238126-C (CA)
Title: Dielectric resonator, dielectric filter, duplexer, and communication device
Inventor: KANAGAWA KIYOSHI
IPC: H04B1/50
Filed: 1998-05-20
Granted: 2001-03-20
Abstract: The invention provides a dielectric resonator for example in the TE010 mode characterized in that electrodes are formed on both principal surfaces of a dielectric plate in such a manner that influence of spurious waves propagating in a space between the electrodes and a conductive plate is prevented thus preventing the reduction in Qo and degradation in the attenuation characteristic in the frequency ranges outside the passband. The inner diameter of the cavity is selected such that when the cavity is regarded as a waveguide the cutoff frequency of the waveguide becomes higher than the resonant frequency of a resonance region and such that the inner diameter of the cavity is greater than a non-electrode part.
Patent CA-2238764-C (CA)
Inventor: MONTGOMERY ROBERT ERIC
IPC: A61Q11/00
Filed: 1996-09-25
Granted: 2009-04-21
Abstract: La présente invention concerne des compositions dentaires améliorées et des procédés pour blanchir les dents. Elle concerne en particulier des composés contenant du peroxyde d'hydrogène maintenus à un pH pratiquement constant compris entre 6,0 et 10,0 pendant l'opération de blanchiment des dents, en présence d'un agent chélateur de calcium.
Patent CA-2247175-C (CA)
Title: Nouveaux derives de l'erythromycine, leur procede de preparation et leur application comme medicaments
Inventor: AGOURIDAS CONSTANTIN
IPC: C07H17/00
Filed: 1997-02-27
Granted: 2006-06-13
Abstract: L'invention a pour objet les composés de formule (I) dans lesquels: X représente un radical CH2 ou SO2 ou un atome d'oxygène, Y représente un radical (CH2)n,-(CH=CH)n(CH2)o, avec m + n + o .ltoreq. 8, n = 0 ou 1, Ar représente un radical aryle, W représente un atome d'hydrogène, ou le reste d'une fonction carbamate. Les composés de formule (I) présentent d'intéressantes propriétés antibiotiques.
Patent CA-2254502-C (CA)
Title: Robot system
Inventor: YAMAMOTO TAKASHI
IPC: B25J5/00
Filed: 1998-11-25
Granted: 2008-02-12
Abstract: A modular robot system is provided with memory means for memorizing task information concerning task of each component unit and the recognition means for recognizing the task of each component unit based on the task information of each component unit. Further, the modular robot system is provided with linkage condition detection means for detecting the linkage condition of each component unit, memory means for memorizing the linkage condition of each component unit every category, of which the configuration of robot system to be assembled is classified into multiple categories according to the linkage condition of each component unit, and judgment means for judging the category of the robot system to be assembled based on the linkage condition of each component unit detected by the linkage condition detection means and the linkage condition of each component unit every category memorized by the memory means.
Patent CA-2258300-C (CA)
Title: Rotary tine conveyor for a harvesting machine
Inventor: BISCHOFF LUTZ
IPC: A01D61/00
Filed: 1999-01-21
Granted: 2002-07-23
Abstract: A rotary conveyor being disposed above the straw walkers of a combine is provided with a rotating body and disappearing tines. The rotary conveyor is an undershot conveyor and is designed to more aggressively loosen threshed crop material passing over the straw walkers. The tines are eccentrically supported in bearings. The tines can move radially in through tines guides that are located in recessed regions of the rotating body. The recessed regions being parallel to the transverse axis of the rotating body.
Patent CA-2260066-C (CA)
Title: Particle filter in the form of a pleated nonwoven layer
Inventor: JUNG REINHARD
IPC: D04H3/02
Filed: 1997-07-10
Granted: 2006-07-18
Abstract: The invention relates to a filter arrangement comprising a pleated nonwoven layer for use as a motor vehicle interior filter. The nonwoven layer is in the form of a single-layer, self-supporting micro-spunbonded fabric, the grammage thereof being between 70 g/m2 and 200 g/m2, preferably between 110 g/m2 and 150 g/m2, the thickness thereof being between 0.7 and 1.5 mm, and the fibre thickness being between 2 and 20 .mu.m with an average fibre thickness of 3 to 5 .mu.m.
Patent CA-2265844-C (CA)
Inventor: UCHIDA HIROSHI
IPC: C07C69/60
Filed: 1998-07-10
Granted: 2007-10-30
Abstract: Propenyl ether compounds of the following general formula (1) CH3-CH=CH-(OR1)n-OCO-X-COO-(R2O)n-CH=CH-CH, and allyl ether compounds of the following general formula (2) CH2 CH-CH2-(OR6)n-OCO-X-COO-(R7O)n-CH2-CH=CH2, both curable by free--radical polymerization, wherein X is -CH=CH- or -CH2-C(=CH2)-; R1, R2, R6 and R7 are each alkylene having 2 to 4 carbon atoms or cycloalkylene having 5 to 12 carbon atoms; and n is 1 to 5, with the proviso that when n is 1 in the formula (2), R6 and R7 are each alkylene having 3 to 4 carbon atoms or cycloalkylene having 5 to 12 carbon atoms. These compounds are obtained by the reaction of a corresponding dicarboxylic acid or a derivative thereof with an alcohol. The compounds of the general formula (1) are obtained by isomerizing allyl ether compounds.
Patent CA-2266607-C (CA)
Title: Photoimageable composition having improved photoinitiator system
Inventor: MURAKAMI SHIGERU
IPC: G03F7/027
Filed: 1999-03-19
Granted: 2002-02-26
Abstract: The invention provides a negative-acting photoimageable composition comprising A) between about 30 and about 80 wt% based on total weight of A) plus B) of a binder polymer having acid functionality sufficient to render said photoimageable composition developable in alkaline aqueous solution, B) between about 20 and about 70 wt% based on total weight of A) plus B) of an addition-polymerizeable, non-gaseous .alpha.,.beta.-ethylenically unsaturated compound(s) capable of forming a high polymer by free-radical initiated chain-propagating addition polymerization, at least about 50 mole percent of the .alpha.,.beta.-ethylenically unsaturated moieties of B) being methacrylic moieties, and C) between about 0.1 and about 20 wt% based on the total weight of A) plus B) of a photoinitiator chemical system, the photoinitiator chemical system comprising between about .005 and about 3 wt% relative to total weight of A) plus B) of triphenylphosphine and between about .005 and about 2 wt% relative to total weight of A) plus B) of n-phenylglycine.
Patent CA-2267908-C (CA)
Title: Spectrometres de masse et procedes de criblage rapide de librairies de materiaux differents
Inventor: CONG PEIJUN
IPC: G01N33/53
Filed: 1997-10-08
Granted: 2002-07-09
Abstract: La présente invention concerne des procédés et un appareil de criblage de différents groupes de matériaux. Des techniques sont fournies, en particulier, pour caractériser rapidement des composés dans des groupes combinatoires de matériaux, de façon à découvrir et/ou optimiser de nouveaux matériaux ayant des propriétés désirées spécifiques. Selon un aspect de la réalisation, on utilise un spectromètre de masse de criblage qui inclut une chambre d'ionisation et un collecteur produisant un signal électrique qui réagit à la quantité d'ions gazeux contactant la surface du collecteur. Un système de conduit extrait, de manière sélective, des échantillons des groupes de matériaux et fait passer lesdits échantillons dans la chambre d'ionisation. Selon une réalisation spécifique, des réactants sont introduits dans le système de conduit de façon à sélectionner des régions d'intérêt sur le substrat. Des moyens sont également, fournis pour chauffer, de manière sélective, des régions du substrat.
Patent CA-2268297-C (CA)
Title: Safety lighter with smooth striker wheel edges
Inventor: SHER TAK CHI
IPC: F23Q2/16
Filed: 1999-04-07
Granted: 2005-08-02
Abstract: A safety lighter with an improved striker wheel and striker wheel mounting frame. The lighter has an igniter having a striker wheel which rotates about an axis in response to force applied to the wheel by a user's finger.   The annular recessed center portion of the striker wheel's outer annular surface has protuberances formed thereon (or grooves formed therein), while the annular unrecessed lateral portions of the striker wheel's outer annular surface are smooth. Further, the striker wheel is mounted to the lighter in slots. The striker wheel is pressed from a first position having insufficient spring force to cause the lighter flint to spark when the striker wheel is rotated into a second position having sufficient spring force to cause the lighter flint to spark when the striker wheel is rotated.
Patent CA-2270001-C (CA)
Inventor: DALLAS L MURRAY
IPC: E21B17/10
Filed: 1999-04-23
Granted: 2003-10-21
Abstract: High pressure fluid seals for sealing against a bit guide in wellhead and a method of using the seals are described. The high pressure fluid seals are primarily intended for use with a blowout preventer protector. The high pressure fluid seals are elastomeric material bonded to an end of a mandrel for insertion into the wellhead.      The end of the mandrel includes an annular ridge that protrudes into the elastomeric seal to inhibit the seal from being extruded away from the bore when the elastomeric seal is seated against the bit guide and the bore is subjected to elevated fluid pressures. The advantage is a high pressure fluid seal that ensures packoff against a bit guide even if the bit guide is worn but still serviceable. A further advantage is a more secure seal that improves safety and enables the use of higher pressures during well stimulation.
Patent CA-2274020-C (CA)
Inventor: BIANCHI MAURO
IPC: B60G17/02
Filed: 1997-12-10
Granted: 2006-02-07
Abstract: The invention concerns a vehicle wheel suspension (51) using a screw spring (52) and a flexible retaining and connecting armouring (53), which in working position, stresses a portion of the spring (52) by maintaining it compressed, for obtaining two different stiffness curves the reversal point of which is located in the vicinity of the working position; when there is compression, the screw spring assembly (52) is compressed whereas when there is strain relief, only the non stressed portion of said spring (52) is decompressed, the suspension being asymmetrical with strain relief stiffness which is greater than the compression stiffness. Each armouring (53) is made up of two fixing elements, one (54) co-operating with the whole or part of a spire of the screw spring (52), the other (56) co-operating either with the whole or part of another spire of said spring (52), or with the shock absorber body (59) and of a longitudinal element (55) capable of being deformed in compression but not so in strain relief, integral with the two fixing elements, the armouring (53) enclosing and stressing at least two spires of the screw spring (52).
Patent CA-2274173-C (CA)
Title: Method and apparatus for adaptive equalization in the presence of large multipath echoes
Inventor: OVADIA SHLOMO
IPC: H03H21/00
Filed: 1999-06-10
Granted: 2009-10-13
Abstract: The performance of a multiphase and/or multiple amplitude receiver, such as a 64/256 quadrature amplitude modulation (QAM) receiver, is improved in the presence of single and multiple echoes. A moving window adaptive decision feedback equalizer (DFE) is provided according to the adaptive equation C n(k+1)= C n(k) - W(k) E(k) X n(k), where delta is step size, Cn is the tap value of tap number n, E(k) is the error output at time k, X n(k) is the received signal for pre-cursor taps (FFE) and past decision output for post--cursor taps (DFE), and W(k) is the sliding window function of time k. In the adaptation process, some coefficients are fixed while other taps are being adapted. In particular, the adaptation is focused on a group of taps which correspond to received echoes. By only adjusting these taps, no interference or noise is introduced to the decision making device in the digital receiver and therefore, the effect of noise and echoes on the adaptation control is substantially reduced.
Patent CA-2276059-C (CA)
Inventor: OUELLETTE WILLIAM ROBERT
IPC: A61F/
Filed: 1997-12-17
Granted: 2004-03-16
Abstract: Cette invention concerne des pochettes thermiques jetables comprenant une structure unifiée qui comporte au moins une couche continue d'une matière semi-rigide qui se ramollit lorsqu'elle est chauffée. Les pochettes thermiques comprennent également une pluralité de cellules thermiques individuelles qui contiennent spécifiquement une composition exothermique et qui sont espacées les unes des autres et fixées dans toute la structure unifiée. La matière de la ou des couches continues est suffisamment rigide pour supporter les cellules thermiques afin d'empêcher l'étirement inacceptable des structures de la ou des couches continues pendant le traitement ou l'utilisation des pochettes thermiques et de s'opposer à l'accès facile aux contenus des cellules thermiques tout en assurant de bonnes caractéristiques de protection globale lorsqu'elles sont chauffées. Ces pochettes thermiques, lorsqu'elles sont placées dans des vêtements, des coussins et autres assurent une couverture thermique effective et efficace du fait de leur excellente aptitude à se conformer à diverses formes corporelles.
Patent CA-2285296-C (CA)
Inventor: WILKINS STEPHEN WILLIAM
IPC: H01J37/02
Filed: 1998-04-08
Granted: 2007-12-04
Abstract: L'invention concerne une cellule (10) d'échantillon destinée à être utilisée dans l'imagerie radiologique, comprenant une structure (11) définissant une chambre pour échantillon (12) et un corps (20) d'une substance excitable sous l'effet d'un faisceau incident (5) approprié. Ledit corps est monté sur ladite structure de façon à générer une radiation aux rayons X. La cellule est disposée de manière à ce qu'au moins une partie de la radiation aux rayons X traverse ladite chambre (12) dans le but d'irradier l'échantillon (7) contenu à l'intérieur et à ce que ladite radiation sorte de la structure en vue d'une détection (35).