baber/WOPTO huggingface dataset:
Patent CA-2185831-C (CA)
Title: Method and apparatus for supporting tdma operation over hybrid fiber coaxial (hfc) or other channels
Inventor: PARATORE BERNARDO
IPC: H04J3/06
Filed: 1996-09-18
Granted: 2001-09-18
Abstract: In a Time Division Multiple Access (TDMA) communication network, a central office (CO) provides interactive communication between a service provider and a plurality of user terminals.  To synchronize transmissions of the user terminals, a timebase timer in the CO generates modulo N-bit cyclical reference counts as time markers. In a downstream direction to the plurality of user terminals, time marker insertion units in the CO receive both (a) separate digital TDMA transport streams having a predetermined data rate including data packets and Media Access Control (MAC) packets that are interspersed between the data packets at predetermined intervals, and (b) the time markers generated by the timebase timer, and insert a currently received time marker count into a concurrently received MAC packet. The resultant downstream TDMA transport streams with the inserted time marker counts in the MAC packets are transmitted in continuous TDMA output transport stream to the remote user terminals.  The time markers are independent of a data rate, a physical channel, and a channel protocol of the transport  stream. In each user terminal, a network interface module synchronizes itself by comparing received time markers and locally generated time marker counts for correcting a local oscillator frequency. Upstream channel units in the CO are synchronized using the timebase timer generated time markers for receiving and processing upstream data packets upon arrival at their preassigned channel unit.
Patent CA-2187681-C (CA)
Title: Vibration gyroscope
Inventor: MORI AKIRA
IPC: G01C19/56
Filed: 1996-10-11
Granted: 2000-06-27
Abstract: In a vibration gyroscope (1), a vibrator (2) is mounted to a mounting substrate (7) through support pins (6a) and (6b). The mounting substrate (7) and a support substrate (10) are disposed opposite by inserting protrusions (11 a and 11b) of the support substrate (10) into second insertion holes (9a and 9b) of the mounting substrate (7) and by supporting the mounting substrate (7) with convex molded sections (14a and 14b). The space between the substrates (7 and 10) are filled with elastic paste made up of synthetic resin such as urethane and silicone, or the like. The paste is dried to form a vibration absorbing member (13). Alternatively, the vibration absorbing member (13) is formed on the surface of a mounting substrate (22).
Patent CA-2198527-C (CA)
Title: Single stage secondary high purity oxygen concentrator
Inventor: CRAMER ROBERT LOUIS
IPC: B01J20/18
Filed: 1997-02-26
Granted: 2002-08-13
Abstract: A single stage secondary high purity oxygen concentrator and method of concentrating oxygen are described. The concentrator has at least a first and a second inlet valve, a first and a second molecular sieve bed, and a first and a second outlet valve. According to a first embodiment of the present invention, the concentrator further comprises a relief valve. During a charge cycle of the first molecular sieve bed, the first inlet valve is open, the first outlet valve is closed, the second inlet valve is closed, and the second outlet valve is open such that adsorbed oxygen of the second molecular sieve bed is desorbed or withdrawn while the first molecular sieve bed is charging. Similarly, during a charge cycle of the second molecular sieve bed, the first input valve is closed, the first outlet valve is open, the second inlet valve is open, and the second outlet valve is closed such that adsorbed oxygen of the first molecular sieve bed is desorbed or withdrawn from the first molecular sieve bed while the second molecular sieve bed is charging. After completion of the charge cycle of the first molecular sieve bed, the first outlet valve opens and a surge of gas is vented by the relief valve and after completion of the charge cycle of the second molecular sieve bed, the second outlet valve opens and a surge of gas is vented by the relief valve. According to a second embodiment of the present invention, the concentrator further comprises a pump which during the charge cycle of the first molecular sieve bed withdraws adsorbed oxygen from the first molecular sieve bed and during the charge cycle of the second molecular sieve bed withdraws adsorbed oxygen from the second molecular sieve bed.
Patent CA-2202967-C (CA)
Inventor: SCHMIDT WALTER
IPC: H01C7/12
Filed: 1997-04-17
Granted: 2005-03-29
Abstract: The overvoltage suppressor contains two connecting fittings which are spaced apart from one another along an axis (z) and between which at least one cylindrical varistor element is arranged. The connecting fittings and the at least one varistor element are braced with respect to one another, forming a contact force, to form a mechanically robust active part of the overvoltage suppressor. The active part is sheathed by a molded housing made of insulating material. In each case, one material cutout is formed in each of the two connecting fittings with a section which runs essentially transversely with respect to the axis (z), is designed in the form of a slot and extends from the outer surface of the fitting to beyond the axis (z). A loop, which absorbs the contact force, is inserted into the sections, which are in the form of slots, in the region of the loop ends beyond the axis (z), and each of the two loop ends rests on in each case one surface which bounds the section which is in the form of a slot. The overvoltage suppressor is distinguished by good mechanical and electrical characteristics and can be produced in a particularly cost-effective manner.
Patent CA-2204096-C (CA)
Inventor: BOURKE PETER
IPC: B03D1/14
Filed: 1997-04-30
Granted: 2007-03-20
Abstract: A flash flotation device (1) comprises a tank (2) to contain slurry (3) incorporating minerals to be extracted, a feed inlet (25) for admission of slurry (3) into the tank (2), agitation means (10) to agitate the slurry (3) within the tank (2), aeration means to aerate the slurry (3) whereby floatable minerals in suspension form a surface froth for removal via froth lip (29), a bottom outlet (26) for withdrawal of relatively coarse or dense components of the slurry (3) from the tank (2), and a side outlet (28) to regulate the level of slurry (3) in the tank (2).
Patent CA-2208906-C (CA)
Inventor: TERRELL JAMIE B
IPC: E21B7/06
Filed: 1997-06-26
Granted: 2004-12-21
Abstract: Apparatus and associated methods of using the apparatus provide ease forming an opening from a first wellbore to a second wellbore, the first wellbore having a portion thereof which intersects the second wellbore. In a preferred embodiment, an apparatus has a cutting device disposed within a housing and a series of spaced apart nozzles directed radially outward from the housing. In another preferred embodiment, the apparatus is axially, rotationally, and radially alignable relative to the liner of the first wellbore. The cutting device is connected to the nozzles. The nozzles direct a discharge from the cutting device radially outward to cut into the tubular structure.
Patent CA-2211875-C (CA)
Title: Verres a faibles pertes dielectriques
Inventor: THALER BARRY JAY
IPC: C04B35/622
Filed: 1996-01-29
Granted: 2007-10-02
Abstract: L'invention porte sur des verres d'aluminosilicate à forte teneur en magnésium servant à constituer de rubans crus dont la cuisson s'opère par étapes: tout d'abord jusqu'à 500  DEG C pour éliminer les matières organiques, puis à une température dépassant de 10 à 30  DEG C la température dépassant de 10 à 30  DEG C la température de transition vitreuse pendant un temps suffisant pour former dans le verre des noyaux de nucléation, puis à une température plus élevée inférieure à la température de ramollissement de manière à compléter la cristallisation du verre. Le verre céramique résultant peut comporter d'importantes quantités de forstérite en phase cristalline. Ces matériaux servent à constituer des circuits imprimés céramiques multicouches convenant à des applications dans les domaines des hautes fréquences et des micro-ondes. Ces verres cuits à forte teneur en oxyde de magnésium présentent une faible constante diélectrique, de faibles pertes par dissipation et un coefficient de dilatation compatible avec les substrats supports métalliques ou céramiques conducteurs des circuits imprimés qui leur confèrent leur résistance mécanique. Les plaquettes sont compatibles avec les dispositifs à l'arséniure de gallium.
Patent CA-2212459-C (CA)
Inventor: CUMMING J STUART
IPC: A61F2/16
Filed: 1996-02-08
Granted: 2006-05-16
Abstract: Lentille (32) intraoculaire d'accommodation présentant une partie haptique (36) en forme de T, s'étendant des bords diamétralement opposés d'un élément optique (34) destiné à être implanté à l'intérieur d'un sac capsulaire (20) de l'oeil (10) présentant un sac (24) postérieur ainsi qu'un reste (22) de sac antérieur formant une ouverture (26) antérieure de sac entourée d'un bourrelet (22) capsulaire antérieur. On introduit la lentille (32) dans le sac (20) en plaçant les extrémités (36b) extérieures de la partie haptique entre le bourrelet (22) capsulaire et le sac (24) postérieur, afin de centrer de manière précise la lentille (32) dans le sac (20). Il se produit ensuite une fibrose autour desdites extrémités (36b), afin de fixer celles-ci dans le sac (22), ainsi qu'autour des portions de la plaquette haptique qui sont plus étroites que le diamètre de l'élément optique et sont situées entre cet élément (34) et lesdites extrémités (36b), afin de former des poches (25) haptiques contenant lesdites portions, de manière que la contraction et la relaxation naturelles du muscle ciliaire effectuent le mouvement d'accommodation de la vision de l'élément optique (34). Un mode de réalisation présente un élément haptique (202) plus épais et profilé, qui glisse lors de la contraction du muscle ciliaire, par rapport au sac capsulaire (24) postérieur, pour permettre un mouvement antérieur accru de l'élément optique (34), aux fins d'accommodation.
Patent CA-2213587-C (CA)
Inventor: SAITO SHIN
IPC: G01N35/10
Filed: 1997-08-21
Granted: 2002-05-28
Abstract: There is disclosed a pipette-washing device for use with an automatic biochemical  analyzer.   The pipette-washing device includes a wash fluid-ejecting block for ejecting a wash fluid toward pipette.  An upwardly spreading groove is formed in the top surface of the body of the block and extends along the trajectory of the front end of the pipette.   The groove is connected at its lower end with the vertical wash fluid channel.          A lateral draining channel is formed in the body of the block and connected with the lower end of the vertical wash fluid channel.          When the pipette moves,  the front end of the pipette moves through the groove.   The block is inclined at an angle to the vertical within a plane in which the groove extends.
Patent CA-2217918-C (CA)
Inventor: MIRABELLA CHARLES J JR
IPC: G03G15/20
Filed: 1997-10-08
Granted: 2001-07-03
Abstract: Image fix level and Input Output Terminal (IOT) faults are minimized.  The foregoing are effected by reducing fuser roll temperature sag or droop which can be a problem during the initial portion of a copy run.  A heated fuser member is operated at a higher power level during the initial portion of a print cycle.  This is effected using an existing controller without modifying the controller's hardware.
Patent CA-2218234-C (CA)
Inventor: SHIPLEY GALE
IPC: D21F1/00
Filed: 1997-10-14
Granted: 2000-01-25
Abstract: A woven papermakers fabric having a first system of yarns interwoven with a second system of yarns.  The second system of yarns define a five float repeat on the paper carrying  side of  the  fabric while maintaining vertical alignment of the first system yarns in the respective first and second layers of the first system.   Preferably,  the first system yarns are cross machine direction (CMD) yarns which repeat with respect to eight pairs of stacked machine direction (MD) yarns.
Patent CA-2221049-C (CA)
Inventor: GONZALEZ ALVARO
IPC: F25D16/00
Filed: 1997-03-07
Granted: 2006-08-15
Abstract: La présente invention concerne un appareil distributeur d'éléments réfrigérants permettant aux consommateurs de ne pas rompre la chaîne du froid lors de l'achat de produits frais et surgelés. L'appareil distributeur (101) d'éléments réfrigérants (11) se caractérise en ce qu'il comprend un caisson (102) dans lequel sont ménagés un orifice d'entrée (104) disposé dans une zone supérieure (129) permettant d'introduire un élément réfrigérant (11) à recycler et un orifice de sortie (105) disposé dans une zone inférieure (128) permettant de distribuer un élément réfrigérant (11) chargé en frigories, et au moins une unité de stockage réfrigérée (107) pourvue d'un rail hélicoïdal (108) de stockage et de guidage s'étendant sensiblement entre les deux zones (128, 129) de sorte que les éléments réfrigérants (11) se déplacent vers la zone inférieure (129) au cours de leur stockage. Un dispositif de nettoyage (112) des éléments réfrigérants (11) à recycler est prévu et comporte des brosses (113) rotatives qui entraînent lesdits éléments de l'orifice d'entrée (104) vers l'unité de stockage (107). De même, un vérin (121) est prévu pour pousser un élément réfrigérant (11) chargé en frigories de l'unité de stockage (107) vers l'orifice de sortie (105). Application: distribution de produits alimentaires, notamment.
Patent CA-2226889-C (CA)
Inventor: BARBOUR ERIC
IPC: C12N15/82
Filed: 1996-07-12
Granted: 2001-10-30
Abstract: L'invention se rapporte à une séquence de régulation d'expression qui est intermédiaire dans la spécificité tissulaire entre un promoteur constitutif et un promoteur spécifique des tissus. Ce promoteur est efficace dans l'expression des gènes de la majorité des tissus du blé, et peut être utilisé pour exprimer de manière efficace les gènes de protéines désirés dans les végétaux.
Patent CA-2232084-C (CA)
Inventor: SCHONBEIN CLEMENS
IPC: H01L31/105
Filed: 1996-10-16
Granted: 2004-05-04
Abstract: Disclosed is a semiconductor heterostructure radiation detector leaving two adjacent semiconductor layer regions sensitive in different spectral ranges, in which regions photons having different energies respectively can be absorbed, which photons optically excite charge carriers present in the semiconductor layer regions in such a manner that a photo current can be generated in the respective semiconductor layer regions in dependence on an external electric voltage applied via electrodes provided at the semiconductor heterostructure.      The present invention is distinguished by the fact that the one semiconductor region is a photodiode and the other a quantum well intersubband photodetector.
Patent CA-2234923-C (CA)
Title: Cdma communication apparatus and cdma communication method
Inventor: HAYASHI MASAKI
IPC: H04B1/707
Filed: 1998-04-16
Granted: 2002-06-25
Abstract: At base station 101, information signals for mobile station (1) are distributed, each spread with a different spreading code then transmitted from two antennas (3) and (4) assumed under good condition in radio propagation.          In mobile station (1), composed waves of both signals are received and each is despread with respective spreading code, as well as in mobile station (2).  According to it, it is possible to transmit the same information from a plurality of different antennas at the same time, which prevents the deterioration in communication quality in the case where a wrong antenna is selected or the radio propagation condition varies fast.
Patent CA-2234964-C (CA)
Inventor: MARTIN GEORGES
IPC: A61Q9/04
Filed: 1996-10-14
Granted: 2003-12-23
Abstract: A depilatory composition has improved rinsing properties by the inclusion of a thixotropic agent. Preferred thixotropic agents are smectite clays, in particular Laponite.
Patent CA-2235040-C (CA)
Inventor: CORNFORD DONALD A
IPC: B65D90/24
Filed: 1998-04-15
Granted: 2003-01-28
Abstract: A fluid impermeable bag for enclosing a lower portion of a residential heating oil reservoir. The secondary containment has an open upper end, a stiff rim around the open upper end and straps extending from the stiff rim above the open upper end for circling an upper portion of a reservoir. The bag is made of a flexible material whereby the bag is collapsible for installation on a new tank or for retrofitting a reservoir in service. In a second aspect of the invention, a flap is detachably affixed to the rim of the bag and is extendible for covering the upper portion of a reservoir installed outdoors. The bag of the present invention is mountable under a heating oil reservoir and is particularly appropriate for preventing environmental spills of all sizes due to common deteriorations of these reservoirs.
Patent CA-2235344-C (CA)
Inventor: EVERHART DENNIS STEIN
IPC: B41M3/00
Filed: 1997-09-04
Granted: 2007-05-01
Abstract: The present invention comprises methods of contact printing of patterned, se lf- assembling monolayers of alkanethiolates, carboxylic acids, hydroxamic acids and phosphonic acids on thermoplastic films metalliz ed with an alloy such as nickel/gold, the compositions produced thereby, and the use of these compositions. Patterned self-assembli ng monolayers allow for the controlled placement of fluids thereon which contain a chemically reactive indicator functionality. The optical sensing devices produced thereby when the film is exposed to an analyte and light, can produce optical diffraction patterns which diff er depending on the reaction of the self-assembling monolayer with the analyte of interest. The light can be in the visible spectrum, and be either reflected from the film, or transmitted through it, and the analyte can be any compound reacting with the fluid on the self assembli ng monolayer. The present invention also provides a flexible support for a self assembling monolayer on a metal alloy.
Patent CA-2236651-C (CA)
Inventor: ANGELETTE AUBREY M
IPC: E02D27/42
Filed: 1998-05-04
Granted: 2002-07-09
Abstract: A spider for a railroad crossing signal foundation has plastic lined tubular channels extending through it with conical entry sections. In assembling a foundation, upright guide rods are guided into the channels by the entry sections without dislodging the plastic liners. In producing the spider, concrete is poured into a mold about tubular plastic liners so as to form entry sections and channels and to fix the plastic liners in the concrete to line the channels.
Patent CA-2238499-C (CA)
Title: Apparatus and method for measuring optical characteristics of teeth
Inventor: LOUDERMILK ALAN R
IPC: A61C5/00
Filed: 1997-01-02
Granted: 2009-05-19
Abstract: Color measuring systems and methods such as for determining the color or other characteristics of teeth are disclosed. Perimeter receiver fiber optics (7) are spaced apart from a central source fiber optic (5) and receive light reflected from the surface of the object/tooth being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics (7) to determine information regarding the height and angle of the probe (1) with respect to the object/tooth being measured. Under processor control, the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip (340) for contamination prevention. A method of producing dental prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a patient data base.
Patent CA-2241332-C (CA)
Inventor: MEILHON DANIEL
IPC: B65D/
Filed: 1998-07-06
Granted: 2006-12-05
Abstract: The package (1), comprising a series of objects (2) in one or more layers, is wrapped in plastics film (3) with a preferred tearing direction (D) and a zone (A) of reduced strength across it. The zone of reduced strength is made from rows of perforations (7, 9, 10) lying perpendicular to the preferred tear direction. This creates a zone with a mechanical strength which is sufficient to hold the packaged articles in position, while being sufficiently weak to allow the package to be opened at any point along the zone without the aid of a tool. The film is in the form of coextruded polyethylene/ionomer layer, and especially comprising at least one layer of a polyolefin and at least one layer of an ionic copolymer. The perforations are between 5 and 30 mm apart and cover a zone 30-100 mm wide.
Patent CA-2244680-C (CA)
Inventor: ARZENO HUMBERTO B
IPC: C07D473/18
Filed: 1997-01-18
Granted: 2005-09-13
Abstract: L'invention concerne un procédé pour préparer l'ester L-monovaline de 2-(2-amino-1,6-dihydro-6-oxo-purin-9-yl)-méthoxy-1,3-propanediol et ses sels pharmaceutiquement acceptables. Ce procédé permet d'obtenir un intermédiaire N,O-bis-trityl de 2-(2-amino-1,6-dihydro-6-oxo-purin-9-yl)-méthoxy-1,3-propanediol qui assure la monoestérification par un dérivé de L-valine. Ces produits sont très utiles comme agents antiviraux et présentent une absorption améliorée.
Patent CA-2252827-C (CA)
Title: Method and apparatus for wrapping coils
Inventor: CHADWICK DENNIS P
IPC: B65B25/14
Filed: 1997-04-03
Granted: 2004-01-27
Abstract: A method and apparatus for wrapping coils (1) of metallic strip and the like to protect against atmospheric corrosion are described. A plastic film sleeve (4) is inserted through the open cylindrical centre (2) and held in place by flanged collars (3) at each end. The sleeve (4) is turned back over the collars (3) and the ends are loosely stuffed into the open cylindrical centre (2). The entire coil is then cocoon wrapped using relatively wide stretch-wrap film (10). The cocoon wrapping (10) is then sealed to the ~ turned-over sleeve (4) in the vicinity of the end collars so as to seal the coil (I) within a continuous plastic film. The excess cocoon wrapping and sleeve material overlying the cylindrical centre can be trimmed away to leave an open centre to receive coil handling equipment.
Patent CA-2254627-C (CA)
Title: Stable, dry compositions for use as herbicides
Inventor: DESAI VIJAY C
IPC: A01N43/824
Filed: 1998-11-27
Granted: 2007-09-25
Abstract: The present invention relates to a dry composition that can be used as a herbicide. The composition contains N-(4-fluorophenyl)-N-(1- methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide, 4- amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one, and a pH adjusting agent. The pH adjusting agent is present in an amount such that it constitutes from about 0.1 % to about 10% of the composition, and the resulting pH is from about 2.8 to about 5.4. The molar ratio of 4- amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one to N-(4- fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2- yl]oxy]acetamide in the composition is from about 1:1 to about 1:6.
Patent CA-2255798-C (CA)
Title: Injection molding cooling core having spiral grooves
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/73
Filed: 1998-12-07
Granted: 2008-06-17
Abstract: Injection molding apparatus with each elongated cooled mold core (10) having a hollow elongated inner part (78) inside a hollow elongated outer part (80) and an integral dome shaped front cap (132). The outer surface (120) of the inner part (78) and the inner surface (126) of the outer part (80) each having cooling fluid conveying grooves (122, 128) which spiral in opposite direction.  This provides very uniform cooling and forces the cooling fluid flow through the grooves (122, 128) to be very turbulent which increases cooling efficiency. It also gives the mold cores (10) additional structural strength to withstand higher injection pressures.