baber/WOPTO huggingface dataset:
Patent CA-2300234-C (CA)
Title: Closed circuit heat exchange system and method with reduced water consumption
Inventor: KORENIC BRANISLAV
IPC: F28D5/02
Filed: 2000-03-08
Granted: 2004-08-03
Abstract: A system and methods of extracting heat are disclosed. The system may be arranged as a fluid cooler or as a fluid condenser. Three heat exchange sections are provided: a dry indirect contact heat exchange section; a second indirect contact heat exchange section that is operable in either a wet or dry mode; and a direct contact heat exchange section. As a fluid cooler, a connecting flow path connects the dry indirect contact heat exchange section to the second indirect contact heat exchange section. A bypass flow path extends from the dry indirect contact heat exchange section to the process fluid outlet. A modulating valve is at the outlet so that process fluid can be selectively drawn from the dry indirect contact heat exchange section alone, from the second indirect contact heat exchange section in series with the dry indirect contact heat exchange section, or from both the dry and second indirect contact heat exchange sections and mixed. Separate air streams pass through the second indirect and direct contact heat exchange sections before entering the dry indirect contact heat exchange section. As a condenser, process fluid is directed to the dry indirect contact heat exchange section alone or to the dry and second indirect contact heat exchange sections in parallel by valves in the process fluid supply lines. In another embodiment, the process fluid flows in series from the dry to the second indirect contact heat exchange section. The system is operable in different modes to extract heat from the process fluid in the most efficient way with respect to annual water consumption. At low temperatures, the system operates dry with primary heat extraction performed by the dry indirect contact heat exchange section. At higher temperatures, the air streams may be adiabatically saturated with evaporative liquid to pre-cool them below the dry bulb temperature before entering the dry indirect contact heat exchange section. At still higher temperatures, the apparatus may be operated in a wet mode with the primary heat extraction performed by the second indirect contact heat exchange section. Heat is extracted from the process fluid while selectively distributing or not distributing the evaporative liquid over the second indirect contact heat exchange section. Plume formation is prevented since discharge air is heated in contact with the dry indirect contact heat exchange section before leaving the heat exchange apparatus.
Patent CA-2302629-C (CA)
Inventor: WILKINSON HILARY
IPC: A61P25/28
Filed: 1998-09-04
Granted: 2001-02-20
Abstract: This invention relates to a novel estrogen receptor and to the polynucleotide sequences encoding this receptor. This invention also relates to methods for identifying ligands which bind to this receptor, to the ligands so identified, and to pharmaceutical compositions comprising such ligands. This invention also relates to pharmaceutical compositions useful for treating or preventing estrogen receptor mediated diseases or conditions, such as abnormal bone resorption, cardiovascular diseases, cancer, or central nervous system disorders.
Patent CA-2304896-C (CA)
Inventor: ZEILINGER BRIAN K
IPC: A63G9/00
Filed: 2000-04-07
Granted: 2007-08-07
Abstract: The invention provides a playstation that is configured to be stronger, less expensive to manufacture, and easier to assemble. The playstation includes a Y--shaped support that has a top section, a lower left section and a lower right section. The playstation also includes a cross-beam having a first cross-beam secured to the left side of the top section on the Y-shaped support and a second cross-beam secured to the right side of the top section on the Y-shaped support. The playstation further includes a left leg secured to the lower left section of the Y-shaped support and a right leg secured to the lower right section of the Y--shaped support. Using the Y-shaped support of the present invention allows the playstation to be readily assembled. The assembled playstation also provides a solid support structure for securing one or more children's accessories to the playstation.
Patent CA-2313024-C (CA)
Inventor: RAMTOOLA ZEIBUNNISSA
IPC: A61P31/12
Filed: 1998-12-10
Granted: 2008-06-03
Abstract: Self-emulsifying microemulsion or emulsion preconcentrate pharmaceutical compositions containing an omega-3 fatty acid oil such as a fish oil and a poorly water soluble therapeutic agent such as cyclosporin are formulated for administration, particularly oral administration to a human. The preconcentrates, which are substantially free of or contain only minor amounts of a hydrophilic solvent system, contain a pharmaceutically effective amount of an omega-3 fatty acid oil; a therapeutically effective amount of a poorly water soluble therapeutic agent that is substantially soluble in the omega-3 fatty acid oil; and a surfactant system comprising at least one surfactant. Microemulsions or emulsions formed by diluting the self-emulsifying preconcentrate with an aqueous solution are also provided.
Patent CA-2314866-C (CA)
Title: Manufacturing a dental implant drill guide and a dental implant superstructure
Inventor: POIRIER MICHEL
IPC: A61B6/14
Filed: 1997-12-18
Granted: 2007-04-17
Abstract: Dental implant drill holes and the shape of a dental implant superstructure are chosen by creating a computer model giving jawbone structural details, gum surface shape information and proposed teeth or dental prosthesis shape information. The computer model shows the bone structure, gum surface and teeth images properly referenced to one another so that implant drill hole positions can be selected taking into consideration proper positioning within the bone as well as proper positioning with respect to the dental prosthesis. Similarly, manufacture of the dental implant superstructure used for fixed dental prosthesis or overdentures can be designed based on knowledge of the actual implant positions referenced to an image of the gum surface and proposed dental prosthesis.
Patent CA-2319388-C (CA)
Title: Dispositif de collecte et de controle de liquide interstitiel
Inventor: HENNING TIMOTHY P
IPC: A61B5/103
Filed: 1999-02-16
Granted: 2007-12-04
Abstract: La présente invention concerne un article (10) capable de recueillir un liquide interstitiel et de détecter un analyte présent dans ce liquide, ainsi qu'un procédé d'utilisation de cet article (10). L'article (10) est, de préférence, capable également de mesurer la quantité d'analyte dans le liquide interstitiel. L'article (10) peut également être utilisé en combinaison avec un appareil de mesure comprenant un élément de détection approprié qui permet de déterminer la quantité d'analyte présente dans le liquide interstitiel. Dans un mode de réalisation préféré, l'article est un élément à couches multiples comprenant: (1) une couche (15) pouvant être placée en contact avec la peau d'un patient; (2) une couche de protection (16) recouvrant la couche de contact avec la peau (15); (3) une couche (18), sensiblement coplanaire par rapport à la couche de protection (16), capable de transporter le liquide interstitiel par un effet de mèche assisté chimiquement; (4) une couche (20) placée au-dessus de la couche de transport de liquide interstitiel (18) et pouvant être mise en contact avec un dispositif de mesure (28), laquelle couche (20) est percée d'une ouverture laissant passer la lumière; (5) une couche (28) placée sur la surface de la couche de contact avec le dispositif de mesure (20) qui fait face à la couche de contact avec la peau (15), capable de détecter la présence d'un analyte ou de mesurer la quantité d'analyte dans le fluide. Pour utiliser l'élément à couches multiples (10), on transmet une lumière provenant d'une source de lumière à travers l'ouverture (24) formée dans le matériau à couches multiples, laquelle lumière est absorbée par une cible d'absorption lumineuse (22) sur la couche de contact avec la peau (15). Cette lumière transfère de l'énergie à la cible (22), énergie qui entraîne la formation d'une ouverture dans la couche de contact avec la peau (15) et dans la couche cornée de la peau. Le liquide interstitiel exsude de l'ouverture dans la couche cornée et entre en contact avec la couche de transport de liquide interstitiel (18). Le liquide interstitiel se déplace alors le long ou au travers de la couche de transport de liquide interstitiel (18) jusqu'à la couche de détection (28).
Patent CA-2320269-C (CA)
Title: Light-activated tooth whitening composition and method of using same
Inventor: MONTGOMERY ROBERT ERIC
IPC: A61C5/00
Filed: 1999-02-12
Granted: 2011-10-11
Abstract: The present invention provides a tooth whitening composition having a transparent first component that is a carrier compound and a transparent second component that is an oxidizing compound which when applied to a stained tooth and exposed to actinic light is activated to facilitate tooth whitening.  The invention also provides a method for light-activated tooth whitening which comprise applying a tooth-whitening composition to one or more teeth and exposing said composition to actinic light to activate said oxidizing compound. The present invention further provides a device for tooth whitening which has a light source, at least one optical output, a projection means for holding and positioning said optical output outside of a patient's mouth in a manner so as to provide approximately simultaneous and uniform illumination of a patient's front teeth by said optical output; and a connection means for connecting said light source to said optical output. The invention also provides methods of using the device.
Patent CA-2326680-C (CA)
Title: Digital video recorder having odd and even fields
Inventor: WILSON CHARLES PARK
IPC: H04N5/445
Filed: 1999-04-29
Granted: 2005-10-04
Abstract: A video data recording unit receives input video signal streams from up to 1 6 cameras (42). The signal streams are selectively converted into digital video signals (56-1, 56-2) and are stoned on a data storage device such as a hard disk (62). The apparatus is controlled so that both odd and even signal fields generated by at least one camera are recorded, whereas only odd fields or only even fields generated by the other cameras are recorded. Odd and even signal field strea ms may be derived from a single stream of demodulated video signals, or from respective demodulation streams.
Patent CA-2328301-C (CA)
Title: Botanical oils as blooming agents in germicidal hard surface cleaning compositions
Inventor: CHEUNG TAK WAI
IPC: C11D3/20
Filed: 1999-03-18
Granted: 2008-09-16
Abstract: The present invention provides aqueous concentrated liquid disinfectant compositions which blooms when added to a larger volume of water which comprise: botanical oil constituent; a gemicide constituent, preferably a germicidal cationic surfactant, and most preferably a quaternary ammonium compound having germicidal properties; organic solvent constituent; at least one botanical oil solubilizing surfactant, preferably selected from amine oxides, alkylpolyoxycarboxylates and alkylarylpolyoxycarboxylates; and further conventional optional constituents including chelating agents, coloring agents, light stabilizers, fragrances, thickening agents, hydrotropes, pH adjusting agents, pH buffers, one or more detersive surfactant constituents and the like. The concentrate compositions do not include a pine oil.
Patent CA-2330267-C (CA)
Title: Reverse link outer loop power control with adaptive compensation
Inventor: MONOGIOUDIS PANTELIS
IPC: H04J13/00
Filed: 2001-01-05
Granted: 2006-03-14
Abstract: In a wireless communications system, a base station employs a bit error rate (BER) based Reverse Outer Loop Power Control (ROLPC) technique. The ROLPC technique uses either instantaneous or weakly filtered values of the BER for comparison with a BER target value for adjusting a target signal-to-noise ratio (SNR). The BER  target value is varied as a function of a second order statistic (e.g. variance, standard deviation) of the received SNR. In another embodiment, a symbol error count based ROLPC  technique uses adaptive SER targets. In particular, a base station uses a 2nd order statistic, e.g., standard deviation (variance), to identify, or act as a signature of, a particular cellular (wireless) communications environment. The base station monitors the standard deviation of the symbol error count of a received signal (transmitted from a mobile station). The target signal-to-noise ratio ((E b/N0)T) of this received signal is adjusted as a function of the value of the standard deviation and the adjusted (E b/N0)T target is used to provide power control.
Patent CA-2331271-C (CA)
Inventor: KIM NAE-JUNG
IPC: A47L5/12
Filed: 2001-01-17
Granted: 2005-03-22
Abstract: An air exhaust structure of an upright-type vacuum cleaner includes a duct vertically formed in a side of a cleaner body, communicating with a motor driving chamber, a supporting member protruded from an inner wall of the duct to a predetermined height, a filter supported by the supporting member and received in the duct, and a grill hinged to the cleaner body for opening and closing an air discharge opening of the duct. The air exhaust structure of the upright-type vacuum cleaner enables simple fabrication and reduced number of parts and fabrication cost.
Patent CA-2334139-C (CA)
Title: Data conversion system and data conversion method thereof
Inventor: SASAKI HIROSHI
IPC: H03M7/00
Filed: 2001-02-02
Granted: 2007-07-03
Abstract: In a data conversion system, a WSP request for obtaining WWW contents of a Web server is sent from a terminal device to a WAP proxy and constraint information of images of the terminal device is added to header information of the request. Upon reception of the constraint information, the WAP proxy converts the WWW contents obtained from the Web server into data based on the constraint information, so that the WWW contents converted into the data are transmitted to the terminal device.
Patent CA-2334244-C (CA)
Title: System and method of quantifying the degree of balance between the forward link and the reverse link channels
Inventor: SHAH ALI R
IPC: H04L1/20
Filed: 1999-06-11
Granted: 2011-05-17
Abstract: A telecommunication system and method is disclosed for analyzing the speech quality, e.g., the Bit Error Rate (BER), on the forward and reverse links to determine whether the links are balanced. For a target cell, the BER on the forward and reverse links can first be measured. The determination of whether the links in the target cell are balanced depends upon whether the BER  percentage is known or only the BER class information is available. If the BER  percentage is known, the relative difference of the mean BER on the reverse and forward links can be compared to determine the degree of the balance.  However, if only the BER class is available, the relative distribution of occurrences of the BER classes on the reverse and forward links can be analyzed to determine whether the links are balanced. The analysis of the path balance can also be used to benchmark speech quality balance in cellular systems.
Patent CA-2343674-C (CA)
Title: Oil recovery method and oil recovery apparatus
Inventor: SAEKI HIROSHI
IPC: C02F1/40
Filed: 2001-04-11
Granted: 2007-01-09
Abstract: An oil recovery method and an apparatus for recovering oil having a bucket for skimming and collecting water and oil floating on the surface of the water. The bucket has a base plate having apertures for draining water collected by the bucket. The apertures have a preselected diameter and length to allow separation of the oil and water utilizing differences in specific gravities and viscosities of the oil and water so that the oil can be discharged from the bucket into an oil recovery tank after the water drains out of the bucket through the apertures but before the oil begins to drain out of the apertures.
Patent CA-2344263-C (CA)
Inventor: ZHOU SHUTONG
IPC: H03F3/60
Filed: 1999-09-09
Granted: 2006-11-14
Abstract: A plurality of amplifiers are connected in cascade to form an in-line pre-distortion circuit. The amplifiers are unbalanced in that each amplifier stage in the circuit has two DC voltage rails which are independently controlled to provide different, i.e. offset, DC voltage levels to the unbalanced amplifiers. This unbalance in the amplifiers generates pre-distortion in a signal which can be used to cancel the inherent distortion caused by a non-linear device which subsequently processes or transmits the pre-distorted signal. Control of the DC voltage offset in at least one of the amplifier stages is necessary to match the pre-distortion to the inherent distortion being corrected. A tilt circuit can be used in cascade with the plurality of amplifiers (in front of the RF amplifiers) to compensate the amplitude change caused by the unbalanced RF amplifiers. Either side of the DC voltage can be changed in order to correct for either sublinear or superlinear laser diode curves.
Patent CA-2344917-C (CA)
Inventor: RYAN PATRICK T
IPC: B60R7/02
Filed: 1999-10-13
Granted: 2005-04-26
Abstract: L'invention porte sur une garniture (10, 10') destinée à être utilisée dans le compartiment à bagages d'un véhicule. Cette garniture comporte un fond (15) flexible épousant généralement la forme du compartiment à bagages, et de préférence un ou plusieurs éléments (20, 30) rigides, arrière, latéraux et avant, de préférence au moins certains de ces éléments épousant les parois du compartiment à bagages. Les éléments rigides comprennent des éléments de rangement tels que des porte-gobelets, des plateaux, des bacs, des glacières à isolation thermique, des porte-cruches à soda ou eau/lait, des boîtes de rangement avec ou sans couvercle ou des bacs à réserve. Des éléments de séparation (50, 60, 60', 60'', 70) éventuels peuvent être ménagés. Ces éléments de séparation comprennent au moins une cloison (50, 70) renforcée, allongée placée entre des parois opposées de la garniture, et éventuellement au moins une cloison (60, 60', 60'') placée entre la cloison allongée, et une paroi de la garniture, ou entre deux cloisons allongées.
Patent CA-2347154-C (CA)
Inventor: DORAN BURNS P
IPC: A61F2/06
Filed: 1999-10-12
Granted: 2008-01-22
Abstract: An expandable tubular reinforcing member used for body lumens such as vessel s, the reinforcing member being formed of a continuous elongated helical element comprised of spaced undulating portions forming en d loop portions and including a plurality of curvilinear connector elements extending between and interconnecting at least some of th e adjacent undulating portions of the helical element over its length.
Patent CA-2348382-C (CA)
Inventor: RABINOWITZ JOSEPH E
IPC: C07K14/015
Filed: 1999-11-10
Granted: 2013-09-17
Abstract: The present invention provides genetically-engineered parvovirus capsids and viruses designed to introduce a heterologous gene into a target cell. The parvoviruses of the invention provide a repertoire of vectors with altered antigenic properties, packaging capabilities, and/or cellular tropisms as compared with current AAV vectors.
Patent CA-2349128-C (CA)
Title: A wireless communication system using surface acoustic wave (saw) single-phase unidirectional transducer (spudt) techniques
Inventor: EDMONSON PETER J
IPC: H03H9/145
Filed: 2001-05-28
Granted: 2006-07-11
Abstract: SAW devices such as interdigital transducers (IDTs) have been widely used in RADAR applications and as filters. An IDT produces a SAW when excited by a single electrical pulse and can be fabricated to embody a code, which code provides for a passive autocorrelation of a SAW input to the IDT and thereby lends itself to further application as a signal generator in a communication device. However, conventional SAW expanders and compressors typically have insertion losses greater than 20 dB, which can have a profound effect on an RF link budget in a communication system.  Insertion losses are drastically reduced by using a single phase unidirectional transducer (SPUDT-type) instead of a conventional IDT as a SAW expander/compressor. A SPUDT-type reflects SAW components which are lost in conventional IDT designs so that a stronger SAW is directed toward a transmission element. In a receiver, a SPUDT-type directs a stronger S,AW toward a compressor IDT. A communication system based on SPUDT-type techniques would be low-cost, low-power, small and simple alternative to known short range communications schemes, including for example the Bluetooth TM solution.  Operation of a SAW system at a frequency of 2.4 GHz is contemplated.
Patent CA-2349255-C (CA)
Inventor: GHIAM FARID F
IPC: B32B27/06
Filed: 1998-11-05
Granted: 2007-05-01
Abstract: L'invention concerne un masque amélioré assurant un niveau convenable de protection des surfaces relativement lisses dans la mesure où la force d'adhérence du masque à la surface à protéger est réglée et maîtrisée et ce, sans avoir recours à un traitement par décharge corona ou à un adhésif dans de nombreuses conditions de production et d'application. L'utilisation de plusieurs copolymères, comonomères et de leurs mélanges selon différents pourcentages permet de contrôler la force d'adhérence qu'exerce ce masque amélioré sur la surface du substrat à protéger. On peut, en outre, personnaliser le masque en vue de répondre à des conditions de production et à une application souhaitée pour qu'il reste collé, tout en pouvant être détaché, au substrat après un procédé de chargement par voie thermique, notamment un thermoformage, un drapage ou un cintrage à chaud.
Patent CA-2349979-C (CA)
Title: Catheter having improved shape retention
Inventor: ROMAN RICARDO
IPC: A61F2/958
Filed: 2001-06-07
Granted: 2008-10-28
Abstract: A catheter for use in a body vessel includes a relatively stiff proximal shaft that is shaped as a tube formed with a lumen and having a proximal end and a distal end. Further, the catheter includes a relatively flexible distal tube formed with a lumen and having a proximal end and a distal end. An inflatable balloon may be attached to the outer wall of the distal tube near the distal end. The proximal end of the distal tube is attached to the distal end of the proximal shaft at a transitional joint. The transitional joint provides a gradual transition in flexibility over the length of the joint between the stiff proximal shaft and the flexible distal tube. Importantly, the transitional joint includes an extension made of a material having superelastic properties when positioned inside the body vessel. One end of the extension is attached to the distal end of the proximal shaft. The other end of the extension projects into the lumen of the distal tube. The extension may be formed as a ribbon, core wire or may constitute a tapered section of the proximal shaft.