baber/WOPTO huggingface dataset:
Patent CA-2207757-C (CA)
Title: Breast tissue engineering
Inventor: LANGER ROBERT S
IPC: C12N5/0793
Filed: 1995-12-15
Granted: 2005-04-05
Abstract: Methods and compositions are described herein for reconstruction or augmentation of breast tissue. Dissociated cells, preferab ly muscle cells, are implanted in combination with a suitable biodegradable, polymeric matrix to form new tissue. There are two forms of matrices which can be used: a polymeric hydrogel formed of a material such as alginate having cells suspended therein, and a fibrous matrix having an interstitial spacing between about 100 and 300 microns. Preferred polymeric materials are those degrading over about one to two months, such as polylactic acid-glycolic acid copolymers. The matrices can be seeded prior to implantation or implanted, allowed to vascularize, then seeded with cells. In a preferred embodiment, the cell-matrix structures are implanted in combination with tissue expander devices. As cell-matrix is implanted, or cells proliferate and form new tissue, the expander size is decreased, until it ca n be removed and the desired reconstruction or augmentation is obtained. The preferred cell types are muscle cells, although other types of mesenchymal cells, fibroblasts, chondrocytes, and adipocytes can be used. Cells obtained from tissue such as the labia can be used for specialized applications such as formation of a nipple type tissue. Other materials, such as bioactive molecules that enhance vascularization of the implanted tissue and/or which inhibit ingrowth of fibrotic tissue, can be implanted with the matrix to enhance development of more normal tissue.
Patent CA-2208158-C (CA)
Inventor: SAITO NOBUO
IPC: B23K9/127
Filed: 1997-06-19
Granted: 2004-03-30
Abstract: A machining vehicle includes a vehicle body, drive mechanism, wheels rotatably supported by the vehicle body, rotation transmission mechanism for transmitting to the wheels rotation generated by the drive mechanism, and a permanent magnet disposed on the vehicle body. The permanent magnet assumes an operation position and a retracted position.      The machining vehicle further includes a lever connected to the permanent magnet, a machining torch attached to the vehicle body, and a handle fixed to the vehicle body. When an operator places the machining vehicle on the travel surface and rotates the lever slightly, an attraction force is generated between the permanent magnet and the travel surface, so that the permanent magnet swings down quickly and assumes the operation position. While the permanent magnet is in the operation position, a sufficient frictional force can be generated between each wheel and the travel surface. When the operator operates the lever such that the permanent magnet moves to the retracted position, the attraction force generated between the permanent magnet and the travel surface decreases to zero.
Patent CA-2218995-C (CA)
Inventor: CHENG YEA-SHUN
IPC: G01N33/553
Filed: 1996-05-01
Granted: 2002-12-31
Abstract: L'invention se rapporte à une cellule d'analyse améliorée qui permet de déceler la présence d'un analysat dans un échantillon de liquide. Ce dispositif comporte un boîtier allongé (10) qui définit un orifice d'admission d'échantillon de liquide, un volume tenant lieu de réservoir, un volume pour l'analyse, et une fenêtre (16) pratiquée dans le boîtier au niveau du deuxième volume d'analyse. La cellule contient un absorbant d'échantillon, un substrat biphasique nouveau et un réservoir, capables ensemble d'introduire une solution aqueuse dans le boîtier par écoulement dans un passage qui s'étend depuis l'orifice d'admission des échantillons, traverse le volume réservé à l'analyse et aboutit dans celui du réservoir. L'invention concerne également un procédé qui permet de déceler la présence d'un analysat dans un échantillon de liquide en utilisant ce dispositif et un matériel chromatographique biphasique de mise en oeuvre du procédé. Le support de libération est, par exemple, un papier absorbant et il contient une bande, par exemple, d'anticorps-métal sol, ainsi qu'une bande, par exemple, d'anticorps-biotine qui se lie aux premier et second épitopes respectivement de l'analysat. Le site de capture est, par exemple, de la nitrocellulose ou du nylon, contenant un constituant de capture immobilisé, par exemple, le streptavidine. On peut prévoir la présence d'un site témoin. Le support de libération et le site de capture sont joints par chevauchement pour former le substrat chromatographique.
Patent CA-2222327-C (CA)
Inventor: MARK WOLFGANG
IPC: D21G1/02
Filed: 1996-06-04
Granted: 2001-07-24
Abstract: Un cylindre (100) à flexion contrôlée, comporte un cylindre creux (1) rotatif et une traverse (10) non rotative, traversant le cylindre creux (1) sur sa longueur. Sur la traverse (10) sont disposés des éléments d'appui (8) très rapprochés et alignés en une rangée parallèle à l'axe, qui peuvent être actionnés individuellement par un fluide sous pression. Les conduites d'alimentation (13) sont placées sur un support en forme de barre (30) par l'intermédiaire de pièces coudées (15) et le support (30) est fixé à la traverse (11) au moyen de vis (25) pouvant être actionnées depuis l'extérieur. Les vis (25) présente des trous longitudinaux (26) par l'intermédiaire desquels sont directement reliés la conduite d'alimentation (13) correspondante et l'élément d'appui (8) correspondant (Fig. 1a).
Patent CA-2223220-C (CA)
Title: Method and apparatus for blow molding hollow articles
Inventor: GILLIS ROBERT A
IPC: B29C49/60
Filed: 1997-11-28
Granted: 2003-11-18
Abstract: A method and apparatus for blow molding plastic articles which utilizes one or more fixed needles and one or more micro vents associated with a blow mold cavity.  Each needle has a first passage associated therewith through which vacuum is supplied to pull the molten plastic about the needle and a second passage therein through which air under pressure is introduced to tear the plastic and blow the article to the confines of the mold which has been closed about the plastic parison.  Micro vents facilitate exhausting air which is about the parison. Preferably the second passage for compressed air is provided by a central bore and the first passage for the vacuum is provided by an annular space about the fixed needle. In a modified form, the fixed needle comprises dual air passages. Provision is made for utilizing plural molds with controls for supplying air and vacuum.
Patent CA-2229747-C (CA)
Inventor: HAYASHI HIROYUKI
IPC: C09D11/16
Filed: 1998-02-18
Granted: 2006-07-18
Abstract: The present invention provides an aqueous marking pen ink composition for writing board which gives writing that can be easily erased by wiping with a dry erasing material without staining on the surface of the writing board even if the writing is half-dried, not to mention after dried on the surface of the writing board. The novel aqueous marking pen ink composition for writing board comprising as essential components a colorant, a resin, a separating agent and water, wherein the colorant comprises microcapsules containing a coloring substance selected from the group consisting of oil-soluble dye, disperse dye and pigment and oil medium which dissolves or disperses a coloring substance. Writing drawn on the surface of a writing board with the aqueous marking pen ink for writing board according to the present invention can be easily and completely erased by wiping with a dry erasing material regardless of whether it is half-dried shortly after drawn on the writing board or after thoroughly dried.
Patent CA-2229948-C (CA)
Title: Fuel reforming apparatus
Inventor: SUGIMOTO TERUO
IPC: H01M8/06
Filed: 1998-02-19
Granted: 2002-08-27
Abstract: A fuel reforming apparatus comprising a liquid-feed heating portion (1), an evaporation portion (2), a steam superheating portion (3), a reforming portion (4), a CO oxidization portion (5), a catalytic combustion portion (6), and a heat recovery portion (7). These portions are constituted by flat plates provided with heat-transfer fins in the interior and are stacked into integral structure, thereby obtaining temperature distribution along a stacked direction so that the temperature of the flat plate element becomes a temperature suitable for reforming, combustion, evaporation, shift, and CO oxidization.
Patent CA-2235039-C (CA)
Inventor: LORENZ GISELA
IPC: A01N43/54
Filed: 1996-11-18
Granted: 2005-01-18
Abstract: L'invention concerne un mélange fongicide renfermant, en une quantité synergiquement efficace, les composants ci-après: a) un dérivé de p-hydroxy-aniline de formule (I), dans laquelle R<1> = H, alkyle, cycloalkyle, cycloalcényle, bicycloalkyle, bicycloalcényle, chacun de ces radicaux étant éventuellement substitué; R<2>, R<3> désignent, indépendamment l'un de l'autre, un halogène, un alkyle, halogénure d'alkyle, alcoxy, halogénure d'alcoxy; Z = H, R<4>-(CO)-, où R<4> désigne un alkyle, alcényle, cycloalkyle, cycloalcényle, aryle, chacun de ces radicaux étant éventuellement substitué, OR<5>, NR<6>R<7>, où R<5> et R<6> désignent, indépendamment l'un de l'autre, un alkyle, alcényle, cycloalkyle, cycloalcényle, aryle, chacun de ces radicaus étant éventuellement substitué; R<7> = H, alkyle, et b) une matière active de formule (IIA) ou (IIB), dans chacune desquelles <u>....</u> désigne une double liaison ou une liaison simple, et les indices et les substituants ont les significations données dans la description. L'invention concerne également l'utilisation dudit mélange pour lutter contre les champignons parasites.
Patent CA-2237354-C (CA)
Title: Method of enhancing call processing in a number portability environment
Inventor: TEWANI KAMLESH T
IPC: H04Q3/00
Filed: 1998-05-11
Granted: 2002-06-25
Abstract: METHOD OF ENHANCING CALL PROCESSING IN A NUMBER              PORTABILITY ENVIRONMENT     A method reduces the number of queries generated to a number portability database.  The number portable communication system includes a local cache associated with the switching office or facility responsible for identifying and controlling the routing of calls to portable numbers (NPA-NXXs ) . By including the cache and only generating a request to the number portability database when the cache either does not contain LRN response information or if a call attempted based on LRN response information in the cache fails, the total number of queries to the number portability database are reduced.  This reduces query traffic as well as speeds up the processing of calls able to use cached information, regardless of whether or not the called number is ported.
Patent CA-2239824-C (CA)
Title: Auxiliary damper for rubber suspension mountings
Inventor: GWINN JAMES T
IPC: B60G13/02
Filed: 1996-07-30
Granted: 2005-06-21
Abstract: An auxiliary damper (12) is provided for a passenger cab (13) on heavy equipment or the like, the damper (12) being contained within the confines of the primary suspension system (11) and being secured to a first one of a supported element and a support to provide surface effect damping as needed to damp high-amplitude, low-frequency vibration in the region of the resonant frequency of the primary suspension (11). An elastomeric sleeve (16) is bonded to a rigid sleeve member (14) which surrounds the securement bolt (17) for the primary mount. A spool member (18) with internal protrusions (26) engagingly surrounds the elastomeric sleeve (16). The spool (18) has upper and lower flanges (22, 24) which overlie and underlie, respectively, in non-engaged relationship, the second of a supported element and a support. When there is low-amplitude, high frequency motion of the support, this non-engaged relationship allows the supported element to be isolated from such motion. When the amplitude of the vibration becomes large enough as, for example, near resonance, the spool (18) of the auxiliary damper (12) engages its supported element or support and dissipates the vibrational energy as heat to effectively damp the large amplitude motion and maintain a comfortable ride.
Patent CA-2243128-C (CA)
Title: Reversible humidifier housing
Inventor: MENASSA CHERIF
IPC: F24F6/06
Filed: 1998-07-10
Granted: 2003-07-01
Abstract: A reversible housing for a humidifier of the type for attachment to the ducts of a forced air heating system. The housing includes a sheet forming a back wall, a pair of side walls and a top wall integrally hinged to the back wall and pivotable through one-half turn with respect to the latter so as to take two operative positions both protruding forwardly of the back wall depending which one of the back wall faces is disposed flat against the duct. The back wall has a central air passage opening bordered with flanges protruding from each of the back wall faces to connect with a duct opening. One of the side walls has a second air passage with flanges protruding from each of its two faces to selectively connect with a by-pass duct to the left or to the right of the housing. An angular cover and a water tray complete the housing and fit the sheet in either one of its two operative positions. A screwdriver is only required to secure the sheet in either one of its operative positions. A deodoriser body is releasably mounted within the humidifier drum.
Patent CA-2245963-C (CA)
Title: Distributed kernel operating system
Inventor: DODGE DAN T
IPC: G06F15/80
Filed: 1998-08-26
Granted: 2009-10-27
Abstract: The present invention relates generally to networks of computer systems, and more specifically, to a method and system of distributed operating system over a network of computer systems. Existing distrbuted operating systems have performance limits due to multiple layers, distinctions between client and server abilities, and inflexible architectures. The invention presents a system and method of distributed operating system with a single level architecture which is just as easily applied to a flexible network environment, including an internet communication link, as to a stand- alone computer. This is done by use of a message passing operating system, and by sending off-node messages to network managers which are capable of directing and receiving the off-node messages.
Patent CA-2250733-C (CA)
Title: Systeme d'emballage a mousse de protection
Inventor: SPERRY LAURENCE BURST
IPC: B65D81/05
Filed: 1997-04-01
Granted: 2002-10-29
Abstract: La présente invention concerne un système d'emballage à mousse de protection comprenant un sac (23) souple fermé sur les côtés. Un joint cassable (37) définit un certain nombre de compartiments internes distincts (41, 42) à l'intérieur du sac. Le joint détermine, lorsqu'il est forcé, une poche interne. Chaque compartiment contient une composition d'un premier et d'un second précurseur de mousse. Le sac doit comporter des moyens internes de diffusion de gaz au moment où les précurseurs génèrent de la mousse. En conséquence, lorsque le joint est forcé, les compartiments internes distincts s'assemblent en une poche interne unique dans laquelle le premier et le second précurseur peuvent se mélanger et réagir de manière adéquate pour permettre à la mousse ainsi produite de s'étendre et de se propager dans la poche interne du sac.
Patent CA-2255356-C (CA)
Inventor: JONES TIMOTHY GARETH JOHN
IPC: E21B43/267
Filed: 1998-12-09
Granted: 2007-10-30
Abstract: A wellbore service fluid comprising polymers having cross--linking groups capable of forming chemical bonds with other polymers without additional monomeric cross-linking agents is described, particularly applicable to water control operations.
Patent CA-2255436-C (CA)
Title: A shared aperture dichroic active tracker with background subtraction
Inventor: LIVINGSTON PETER M
IPC: G01S17/86
Filed: 1998-12-10
Granted: 2002-02-19
Abstract: An imaging self-referencing target tracker (10) for a laser weapon (12).   The weapon generates a first beam of radiation (14) that engages a target (16) to form a beam hit spot  (20)  thereon.     In  a  first  embodiment,   a  target illuminator  (22)  (variant 1)  illuminates the target with a second beam of radiation  (23a).   An optics subsystem  (30) receives and separately images  the  first and second beams (23b, 24)  of radiation.   In a second embodiment,  a blocking filter (40) is implemented rather than an illumination laser to pass  only radiation  at  the  target wavelength,  thereby ensuring that the first and second beams of radiation are separately imaged.  A controller (32) is programmed to steer the first and second beams of radiation to the desired target aim point  (18)  in response to information from the imaged first and second beams of radiation.   The tracker of the present invention tracks the laser hit spot relative to the actual  target  image  in  a  closed  loop  manner,   thereby increasing the probability of accurate target engagement and resulting in a target kill.
Patent CA-2256699-C (CA)
Title: Procede de cristallisation de regions d'une couche de semi-conducteur sur un substrat, et dispositifs realises selon ce procede
Inventor: IM JAMES S
IPC: H01L21/77
Filed: 1996-05-28
Granted: 2003-02-25
Abstract: Des dispositifs intrégrés à semi-conducteur, tels que des transistors, sont formés dans une couche de matériau semi-conducteur formée sur un substrat. Pour que le dispositif présente des caractéristiques améliorées, le matériau semi-conducteur a une structure régulière, quasi régulière ou monocristalline. Une telle structure est obtenue par une technique impliquant l'exposition localisée de la couche à une ou plusieurs impulsions d'un faisceau laser, ces impulsions faisant fondre localement la couche sur toute son épaisseur. La matière fondue se solidifie alors latéralement à partir d'une zone à germes de la couche. Les dispositifs à semi-conducteur peuvent être introduits en tant que dispositifs de commande de pixels et dispositifs d'attaque, dans des dispositifs d'affichage à cristaux liquides, et dans des détecteurs d'images, des mémoires RAM statiques, des dispositifs du type silicium sur isolant, et des dispositifs à circuits intégrés tridimensionnels.
Patent CA-2258855-C (CA)
Inventor: GUO SHAO-HUA
IPC: C09D133/04
Filed: 1997-06-25
Granted: 2005-11-29
Abstract: High-solids and powder coatings are disclosed. The high-solids coatings comprise an acrylic resin; a melamine, silane, or polyisocyanate cross-linking agent; an organic solvent; and optionally, a pigment and a cross-linking catalyst. The acrylic resin comprises recurring units of an allylic alcohol or propoxylated allylic alcohol, a vinyl aromatic monomer, and one or more acrylate monomers. Powder coatings of the invention comprise an acrylic powder resin having a Tg within the range of about 40°C to about 80°C. Coatings of the invention are economical and give exterior coatings, especially automotive coatings, with improved weatherability and an excellent balance of physical properties compared with commercial clearcoats.
Patent CA-2261044-C (CA)
Title: Surgical implants and delivery systems therefor
Inventor: REIDY JOHN
IPC: A61B17/12
Filed: 1997-07-15
Granted: 2007-12-18
Abstract: A stent for occluding the human ductus ar-teriosus comprises a length of wire of shape mem-ory effect or superelastic material which is expand-able from a relatively straightened state for introduc-tion into the patient, to an occluding state wherein the wire defines an occluding anchor part (10), and spiral anchor part (12) and a straight linking part (14). In the occluding anchor part (10), the wire has adopted a series of turns extending over the cross--sectional area of the occluding anchor part (10).
Patent CA-2261074-C (CA)
Title: Method and apparatus for infusing fruit and for obtaining a substantial juice byproduct
Inventor: WETTLAUFER DALE E
IPC: A23L2/04
Filed: 1997-07-18
Granted: 2006-04-25
Abstract: Method and apparatus for infusing fruits (which may include vegetables) with sugar. The apparatus includes a series of interconnected tanks (t0, 12, 14 and 16). A stratified column of infusing liquor is caused to flow from a tank (50) via variable output pump (52) through fruit which is placed within the tanks to cause the fruit to become saturated with sugar. In addition, the fruit is placed in a plumping liquid in the tanks prior to infusing and the infusing liquor will drive the plumping liquid in front of it. The fruit may be conditioned in various ways prior to placement in the tanks, which conditioning may remove fruit juice from the fruit, the fruit juice being collected in a tank (36) for subsequent use. Alternatively, if fruit juice is not removed from the fruit during a conditioning process, fruit juice is extracted from the downstream portion of the plumping liquid.
Patent CA-2261915-C (CA)
Inventor: HEROPOULOS GEORGE W
IPC: G06F3/0488
Filed: 1997-07-23
Granted: 2006-05-30
Abstract: A panel, page or substrate (112) is provided having a tier of electroluminescent (EL) material which forms a pattern corresponding to a series of images (130a-d). When illuminated in accord with a predetermined sequence, the series of images provide an illusion of movement. A sound generator (134) is provided to produce a predetermined audible response associated with the predetermined sequence. One or more flexible membrane switches (164) are coupled to simultaneously activate both the EL material and the sound generator when depressed. The panel may be embodied as a flexible web that is adapted to roll up over a spring loaded shaft.
Patent CA-2263881-C (CA)
Inventor: HOGL VITUS
IPC: H01H33/662
Filed: 1997-08-25
Granted: 2006-11-28
Abstract: L'invention concerne un commutateur en charge (1) pour des tensions de l'ordre du kilovolt, comportant une chambre de commutation à vide (2) entourée sans fente par une manchette (4) en matériau élastomère à haute résistance diélectrique. La manchette (4) est quant à elle maintenue serrée par les moitiés de boîtier (11 et 12) du commutateur en charge (1). Une éventuelle décharge extérieure de la haute tension entre les plaques avant (24 et 25) de la chambre de commutation à vide (2) est de ce fait évitée efficacement pendant le processus de commutation, sans qu'il soit nécessaire de recourir à des milieux liquides ou gazeux. Contrairement aux commutateurs de charge traditionnels, ce commutateur en charge n'implique par de contrôle complexe et ne présente pas de danger pour l'environnement.
Patent CA-2267136-C (CA)
Title: Lactose-free, non-hygroscopic and anhydrous pharmaceutical compositions of descarboethoxyloratadine
Inventor: RUBIN PAUL D
IPC: A61K/
Filed: 1998-02-06
Granted: 2000-11-28
Abstract: Stable pharmaceutical compositions of descarboethoxyloratadine (DCL), a metabolic derivative of loratadine, for the treatment of allergic rhinitis and other histamine-induced disorders are disclosed. The compositions are formulated to avoid the incompatibility between DCL and reactive excipients such as lactose and other mono- and disaccharides. Disclosed compositions include lactose-free, non-hygroscopic and anhydrous stable pharmaceutical compositions of DCL.
Patent CA-2271470-C (CA)
Title: Stage effect control method and apparatus
Inventor: WYATT MICHAEL K
IPC: G05B15/02
Filed: 1997-11-20
Granted: 2002-01-01
Abstract: Stage effects (20) are moved by a computer (12) which has stored data indicative of individual stage effects (20) to be moved, their start and finish positions, the speed of movement, and timing and order of movement.  The computer (12) controls drive assemblies (24) for moving the effects (20) by a program which, while the program is running, displays on the monitor (16) data concerning movement of the effects (20) and enables the operator to modify at least some of the data previously established.