baber/WOPTO huggingface dataset:
Patent CA-2116714-C (CA)
Inventor: SUMIDA DAVID S
IPC: G02F1/35
Filed: 1994-03-01
Granted: 1997-12-16
Abstract: Saturable absorption, polarization, and retroreflection are integrated into a single solid-state optical element (10). The optical element (10) comprises an undoped substrate (14) having front and rear surfaces disposed at a predetermined angle. A dielectric coating (15) is disposed on the rear surface of the substrate (14), and at least one saturable absorber platelet (11) is disposed on the front surface of the substrate (14). The saturable absorbing species used in the platelet(s) (11) are either F2- color-centers in lithium fluoride or Cr4+ dopant ions in one of several suitable host optical materials. Linear polarization of the laser beam (13a) is achieved by orienting the input face of the optical element (10) at Brewster's angle. The dielectric coating (15) (mirror) on the back surface of the optical element (10) provides 100% reflectivity. The optical element (10) is a monolithic, simple to fabricate, easy to align multi-functional element for use in a laser resonator (12). The optical element (10) provides passive Q-switching, discrimination for linear polarization, and laser beam reflection. The mirror is an integral part of the optical element (10), and it is easy to align the integrated polarizer. By aligning the optical element (10) for retroreflection, the Brewster's angle condition is automatically met and optimal polarization discrimination is achieved. The optical element (10) improves the quality and efficiency of lasers in which it is employed. The present invention is easy to align and reduces the number of optical elements in the laser, thereby improving system reliability.
Patent CA-2117476-C (CA)
Inventor: WOOD R ANDREW
IPC: G01J5/48
Filed: 1993-06-15
Granted: 2000-02-22
Abstract: A camera system primarily for infrared radiation having a focal plane array of microbolometer elements in a vacuum package with inexpensive thermoelectric temperature stabilization is shown. The stabilization temperature may be selected by a designer or a user over a wide range of temperatures, but room temperature use is primarily expected. The microbolometers are passive elements and the readout scheme involves a sweep of the array with a short duration pulse-high level bias current.
Patent CA-2119180-C (CA)
Inventor: PRUSS DONALD E
IPC: E04B2/02
Filed: 1994-03-16
Granted: 1999-08-31
Abstract: There is disclosed a monolithic unit having spaced apart panels for concrete walls in which the unit includes in one embodiment tie members having a chemically similar polymeric composition to that of the panels but differing in a physical form. The result is a fusibly connected integral unit.
Patent CA-2119363-C (CA)
Title: 10-desacetoxytaxol derivatives
Inventor: HOLTON ROBERT A
IPC: C07F7/18
Filed: 1992-09-22
Granted: 2001-07-17
Abstract: The present invention relates to 10-desacetoxytaxol and derivatives thereof, which are useful as antitumor agents. These compounds have formula (1) wherein R2 is hydrogen, hydroxy or a protected hydroxy group; R3 and R4 are independently hydrogen, hydroxy, a protected hydroxy group, methyl, -SH, -NH2, or -NR8R9; R5 is R10, or -OR10; R6 and R7 are inde-pendently hydrogen, alkyl, or aryl; R8 and R9 ace independently hydrogen, alkyl, alkenyl, alkynyl, or aryl; and R10 is al-koxy, alkyl, alkenyl, alkynyl, or aryl.
Patent CA-2130816-C (CA)
Inventor: ADEWUYI YUSUF G
IPC: B01J29/90
Filed: 1993-04-30
Granted: 2004-03-16
Abstract: In a process for catalytically cracking a heavy feed in a single riser reactor FCC unit, the catalyst inventory contains 3 - 10 wt % of a shape selective zeolite, preferably ZSM-5, in the form of a separate additive particle. The addition of such a large quantity of ZSM-5 as a separate additive produces unexpectedly large amounts of C3/C4 olefins.        A high catalyst/feed mix temperature in the base of the riser is preferably employed and the mixture quenched, preferably with a recycled heavy naphtha or light cycle oil, at a distance at least 10% of the length of the riser upstream from the outlet and preferably after at least 1 second of riser cracking.
Patent CA-2137388-C (CA)
Title: Ceramic substrate for semiconductor device
Inventor: IKUINA KAZUHIRO
IPC: H01C17/28
Filed: 1994-12-06
Granted: 1998-09-22
Abstract: A ceramic substrate for use with a semiconductor device, includes an electrical conductor composed of Ag, a resistor composed of oxide, and a barrier layer located between the electrical conductor and the resistor and composed of a material selected from a group consisting of AgPd and AgPt. The ceramic substrate prevents a diffusion of Ag atoms between the electrical conductor and the resistor, and hence provides a stable internal resistance.
Patent CA-2147423-C (CA)
Title: Preparation process of ginkgolide b from ginkgolide c
Inventor: CAZAUX JEAN-BERNARD
IPC: C07D493/22
Filed: 1995-04-20
Granted: 2005-06-21
Abstract: A two-step process for converting ginkgolide C into ginkgolide B is disclosed.  In the first step, ginkgolide C is reacted with a sulfonic anhydride to obtain a C-7 sulfonate of ginkgolide C. In the second step, the C-7 sulfonate of ginkgolide C is reacted with a borohydride, and this reaction eliminates the C-7 radical of the C-7 sulfonate of ginkgolide C, thus producing gingkolide B.
Patent CA-2150728-C (CA)
Title: Data encoded optical pulse generator
Inventor: FROBERG NAN M
IPC: G02F1/01
Filed: 1995-06-05
Granted: 1999-09-28
Abstract: The apparatus and method according to the present invention includes a semiconductor laser-modulator which is used to simultaneously generate optical pulses and encode data.  The optical data output from the laser-modulator are soliton pulses in RZ format suitable for transmission in long distance optical communications.
Patent CA-2151181-C (CA)
Title: Multicast shared memory
Inventor: BENNETT JON C R
IPC: H04Q3/00
Filed: 1995-06-07
Granted: 2002-01-01
Abstract: A linked list for multicast in an ATM network.   The linked list comprises a first cell.  The linked list also comprises a plurality of read pointers.  Each read pointer is associated with a port.  Each read pointer points to the first cell.  A multicast system for an ATM network.   The system comprises a first port through which a cell passes.  The system also comprises a first read pointer associated with the first port.  The multicast system additionally comprises at least a second port through which the cell passes.  There is at least a second read pointer associated with the second port.  The multicast system is comprised of a cell to which each read pointer points.   Furthermore, the multicast system is comprised of a controller for controlling when a read pointer reads a cell.  The system preferably includes a plurality of cells.  Each cell has a cell pointer pointing to a next cell. The plurality of cells forms a linked list.  The controller points a read pointer to the next cell after the cell the read pointer was pointing to is read.   A method for multicasting.   The method comprises the steps of forming a first read pointer and at least a second read pointer.  Each read pointer corresponds to a first port and a second port, respectively.  Each read pointer points to a cell.  Then there is the step of choosing a port.  Next there is the step of locating the read pointer for the port.  Then there is the step of reading the cell to which the read pointer is pointing. Preferably, the cell includes data and the cell includes a cell pointer pointing to a second cell, if there is a second cell.  The first cell and at least the second cell forms a linked list.
Patent CA-2153562-C (CA)
Inventor: VETESNIK JAN
IPC: B66C23/20
Filed: 1995-07-10
Granted: 1999-11-16
Abstract: The present invention provides an apparatus for mounting an appliance at an opening in a wall, particularly for use with openings in the exterior walls of storage tanks and the like. The apparatus allows men and materials to be safely raised and lowered within the opening, can be moved away from the opening without completely removing the apparatus from the tank, and can be used to mount a variety or different appliances for use through the opening. The apparatus comprises grasping means for securing the apparatus to the opening of the wall, an appliance mounting member for connecting an appliance to the grasping means, and an appliance for maneuvering through the opening and performing a predetermined task within the tank.
Patent CA-2156531-C (CA)
Title: Defrost water drain system for a refrigerator
Inventor: HO ROBERT K
IPC: F25D21/14
Filed: 1995-08-18
Granted: 2007-02-13
Abstract: A refrigerator having a defrostable evaporator disposed in a food storage compartment wherein a drain system is provided for disposing of the defrost water dripping from the evaporator during a defrost operation. The drain system includes a drip tray disposed within the food storage compartment below the evaporator and an evaporator pan mounted below the food storage compartment. A drain tube is provided having a first end positioned below the drip tray for receiving the defrost water and having a second end positioned over the evaporator pan such that the drain tube drains the defrost water from the drip tray into the evaporator pan. The drain tube further includes a drain trap portion and a vent disposed upstream of the drain trap portion. The vent includes a valve for allowing air flow into the drain tube for equalizing the air pressure in the food storage compartment with the ambient air pressure but prevents air flow out of the drain tube such that no thermal leakage occurs through the drain tube.
Patent CA-2156772-C (CA)
Inventor: BAILEY JEFFREY R
IPC: G01V1/42
Filed: 1995-08-23
Granted: 1999-11-30
Abstract: Apparatus and method for determining the location of the source of seismic energy around a well are provided.  Multiple seismic receivers, each receiver having orthogonal seismic sensors, are axially spaced on a tool which is capable of sending real-time seismic signals to the surface over conventional wireline.  A method for calculating the location with respect to the receivers is also provided, the method employing data from all the sensors and a performance function to minimize error in the determination of location, and a simplified method is provided for determining if a fracture has extended past a selected depth in a formation.
Patent CA-2159384-C (CA)
Title: Method for processing collect telephone calls
Inventor: FREEDMAN BARRY H
IPC: H04M15/00
Filed: 1995-09-28
Granted: 1998-09-22
Abstract: When a collect call is initiated by a calling party, and the call is routed to an operator services position, an automated attendant, or other system in the telephone network. In addition to playing an announcement to the called party to determine if he or she will accept the call, information is furnished to the called party, preferably by an announcement, indicating (a) the anticipated cost for the call, and, optionally, (b) the relative cost of the call, as compared to the cost that would be imposed if another carrier carried the call.   This information may be obtained using the dialed number andinformation identifying the calling party location, and by querying a database containing (a)rate information, and optionally (b) comparative information setting forth the rates of different carriers offering collect call service in the same calling area. The invention can be practiced in an automated attendant, sometimes referred to as an interactive telecommunications services platform, which may be part of (a) a switch in a local exchange network, or (b) a switch in an interexchange (long distance) network. The collect calls may be originated by dialing a 0+ call, or by calling a predetermined 800 number such as 1-800-CALL ATT.
Patent CA-2162785-C (CA)
Inventor: GIANPAOLO ANTONELLO
IPC: G01R31/28
Filed: 1995-11-14
Granted: 2003-10-14
Abstract: A method is described for automatic loading and unloading of printed circuit boards on machines for electrical testing, consisting of feeding the circuits to be tested into a pick-up area (16), detecting the position of the single circuits and comparing the position detected with a correct reference position, transferring the circuits from the pick-up area (16) to a loading area (4) on the test machine, taking into account during transfer any deviation of the actual position of the circuit board from the reference position, so that the circuit is always picked up in the same way, to be set down in the pre-established region of the loading area (4), and unloading the tested circuits from said area (4) of the machine onto a discharge line (7) for good circuits and a magazine (17) for faulty circuits, depending upon the test result. An apparatus for carrying out the method is also described.
Patent CA-2170533-C (CA)
Title: Procede pour l'obtention d'aluminates de calcium a partir des residus d'aluminium
Inventor: MATHIEU GILLES
IPC: C21C7/064
Filed: 1994-09-19
Granted: 2006-08-01
Abstract: La présente invention se rapporte à un procédé de préparation d'aluminates de calcium frittés qui peuvent généralement être utilisés comme un élément de couverture protecteur pour des métaux liquides, en particulier l'acier. Le procédé consiste à mélanger des particules d'oxyde de calcium ou de son précurseur, et des restes d'écume d'aluminium tel que NOVAL<TM>; à calciner le mélange obtenu; à maintenir une température de calcination d'au moins 1200  DEG C pendant au moins 5 minutes environ, ce qui permet d'obtenir un produit fritté friable riche en aluminates de calcium; et à récupérer le produit fritté après le refroidissement de ce dernier. On peut éventuellement ajouter du fluorure de calcium ou tout autre fluorure au mélange de départ si le reste d'écume n'en contient pas déjà.
Patent CA-2171005-C (CA)
Title: Highly rigid propylenic resin and blow molded article made therefrom
Inventor: KIJIMA MASATO
IPC: B29C47/00
Filed: 1995-07-14
Granted: 2005-12-06
Abstract: A highly rigid polypropylene resin which has an MI of 0.1-1.2 g/10 min as measured at a temperature of 230 ~C under a load of 2,160 kg and satisfies t he following relationship between elongational viscosity, Y(Pas), and MI: 2.0 x 105 x MI-0.68 <= Y <= 8.0 x 105 x MI-0.68. The resin can provide large blown parts that are lightweight and excellent in rigidity, dimensional stability and thermal resistance, and has a good drawdown resistance.
Patent CA-2177943-C (CA)
Inventor: GANNAWAY EDWIN L
IPC: F24H4/04
Filed: 1996-05-31
Granted: 1999-08-10
Abstract: A water heater using the heat pump principle includes a hermetic compressor mounted within a well defined within a water tank. The outlet fitting of the compressor is connected to a condensing tube within the tank that heats the water. The compressor includes a radially outwardly projecting flange that is supported on a support surface on the upper header of the water tank through a resilient pad. The pad includes ribs, dimples, or other projections to partially support the flange away from the surface of the pad and/or to support the pad off of the support surface on the header, to thereby vent the volume defined between the compressor and the well.
Patent CA-2179277-C (CA)
Inventor: O'CONNOR STEPHEN JOHN
IPC: B43K5/18
Filed: 1994-12-09
Granted: 2000-02-08
Abstract: An ink container for writing  instrument (1) has a valve (6) disposed between an ink reservoir (3) and means for feeding ink from the reservoir. The valve is operated by differential in pressure and provides a positive closure during non-writing, and reliable control of ink flow during the writing process.
Patent CA-2181828-C (CA)
Inventor: LAMOUREUX RICHARD
IPC: B67D3/00
Filed: 1996-07-22
Granted: 2002-01-15
Abstract: A one-piece cap for closing a liquid container intended to be installed for supply purpose in upside down position onto a liquid dispenser. Such container has a neck on which the cap is sealingly mounted and through which a liquid supply tube passes when the container is installed onto the dispenser. The cap comprises a lid having a surface area substantially identicalto the one of the neck, and a skirt integrally projecting from the lid. The lid is provided with a central recess including a tubular guiding portion projecting from the lid in the same direction as the skirt, the guiding portion being sizedand positioned to receive the supply tube, and bottom portion. The invention lies in that this bottom portion is in the form of a cone that projects from theguiding portion and is provided with a number of frangible lines extending within meridian planes in such a manner so as to allow splitting of the cone into a corresponding number of petal-shaped segments when the container is installed onto the dispenser and its cap and neck are penetrated by the supply tube. This cap is useful in that it may be used in any kind of water dispenser.
Patent CA-2186074-C (CA)
Inventor: QUINLAN MICHAEL
IPC: H01H85/54
Filed: 1996-09-20
Granted: 1999-11-23
Abstract: A fuse holder including a housing defining an enclosed region and an opening to the enclosed region, a pair of contacts at opposite ends of the enclosed region and spaced to engage end cap terminals on the ends of a tubular fuse moved into the enclosed region, and a fuse carrier that is pivotally mounted on the housing at the housing opening and movable between a closed position, in which the contacts electrically engage the end cap terminals and the opening is closed by the carrier, and an open position, in which a fuse can be inserted into the fuse carrier, the fuse carrier defining an elongated fuse insertion region for receiving the tubular fuse, one end of the region being sized to receive a small diameter projection on the end of the tubular fuse but to block a full diameter end of a fuse of the same diameter, the opening to the housing being sized to permit closure of the carrier with a tubular fuse having a small diameter projection in the one end, but to block closure of a fuse having the same overall length but a full diameter end at the one end of the fuse insertion region.
Patent CA-2186920-C (CA)
Inventor: PARK HONG KU
IPC: A01G9/10
Filed: 1996-10-01
Granted: 1999-09-28
Abstract: A  plant  sprouting  apparatus  for  continuously supplying moisture  to  seeds,  seedlings  or  plants  to enhance the germination and growth of the seeds, seedlings and plants.  The plant sprouting apparatus comprises an outer container having moisture therein,  a connecting ring, an inner container having soil and seeds, seedlings or  plants  therein  in  communication  with  the  outer container, a reinforcing ring, and a cover or dome.
Patent CA-2187343-C (CA)
Title: Recepteur a bande large et a canaux multiples, utilisant une transformation rapide de fourier
Inventor: CARNEY RONALD R
IPC: H03H17/00
Filed: 1995-03-13
Granted: 2004-06-01
Abstract: L'invention concerne un émetteur-récepteur de communication sans fil à canaux multiples qui est compact et qui comporte un filtrage à phases multiples ou à recouvrement et addition, pour le traitement de signaux en bande large avec une vitesse d'échantillonnage élevée. Une section réceptrice reçoit une pluralité de canaux de communication à fréquences multiples et émet des signaux numériques représentatifs du contenu de la pluralité des canaux de communication à fréquences multiples. La section réceptrice comprend un récepteur à canaux utilisant une transformation rapide de Fourier qui traite les signaux numériques émis par un récepteur numérique à bande large et couple les sorties respectives des canaux à une première pluralité d'unités de traitement de signaux numériques qui traitent (par exemple démodulent) les signaux numériques des canaux respectifs et fournissent ces signaux traités à des ports de sortie respectifs en vue d'une répartition vers le réseau audio/données associé. Sur le côté émission, une section émettrice contient une pluralité de processeurs de signaux numériques, associés respectivement avec une pluralité de signaux de communication (audio/données) entrants, qui sont à transmettre par des canaux respectifs à différentes fréquences. Leurs sorties traitées (modulées, codées) sont acheminés sur un circuit mélangeur inverse utilisant une transformation rapide de Fourier. Le circuit mélangeur utilisant une transformation rapide de Fourier fournit un signal combiné multicanal à un émetteur à bande large qui émet un signal de canal de communication à fréquences multiples. Les récepteurs à canaux et les circuits mélangeurs peuvent les uns et les autres être mis en oeuvre en utilisant un filtrage à phases multiples ou à recouvrement et addition
Patent CA-2194497-C (CA)
Title: Milk meter
Inventor: NELSON WILLIAM S
IPC: A01J5/01
Filed: 1997-01-06
Granted: 2001-05-15
Abstract: A milk meter (22) has a measuring chamber (40) with an inlet (42) receiving milk from a mammal's teat (24), a discharge chamber (48) having an inlet (50) from the measuring chamber and an outlet (52) discharging the milk to a collection tank (32), a central vertically reciprocal plunger valve (46) opening and closing the outlet of the measuring chamber and communication vacuum from the discharge chamber through the plunger to the measuring chamber, and a level sensing float (56) in the measuring chamber and circumscribing the plunger valve and vertically reciprocal therealong.
Patent CA-2196166-C (CA)
Inventor: KLOCKSETH MARTINUS OLIVER
IPC: A62B18/00
Filed: 1995-08-01
Granted: 2004-04-06
Abstract: A forced air breathing apparatus which includes a face piece (20a) for covering at least the nose or mouth of a wearer, a pump unit (10) arranged to supply air to a space within the face piece (20a), a filter (13) to filter air entering the face piece (20a) and valve means to control the flow of air from the pump unit (20) to the face piece (20a) during inhalation and from the face piece (20a) during exhalation. The pump unit (20) includes a fan (12) driven by an electric motor (11). The valve means includes an air inlet valve (19) and an air outlet valve (22), the air outlet valve (22) being maintained in a closed position during inhalation through the air inter valve (19) by air pressure from the pump unit (20) and being opened by exhaled air. The exhaled air also acts to close the air inlet valve (19) and prevents the entry of exhaled air to the pump unit (20). The fan (12) is a centrifugal fan driven at a substantially constant speed. A valve (14) is provided on the air inlet side of the pump unit (10) and is arranged to close when a defined air pressure is present within the pump unit (10) downstream of the fan (12).
Patent CA-2198182-C (CA)
Inventor: ALTSHULER EDWARD L
IPC: F16K11/085
Filed: 1997-02-21
Granted: 2000-10-03
Abstract: A rotary control valve is provided for a liquid conditioning system. The rotary control valve includes a housing having a chamber formed about a central axis. The housing includes a plurality of ports aligned with one another along an axis generally parallel to the central axis. A rotor is located within the chamber and is selectively rotatable about the central axis. The rotor includes a central tubular wall extending along the central axis which includes a central fluid flow path. The rotor includes an inlet port adapted to provide fluid communication between the central fluid flow path and a source of untreated liquid. The rotor also includes a plurality of longitudinal sectors wherein each sector includes one or more radial chambers located in one or more tiers of the sector. One or more of the radial chambers in each sector includes an aperture to provide fluid communication between the central fluid flow path and the radial chamber. The radial chambers include respective peripheral apertures adapted to selectively place the radial chambers of a sector in fluid communication with one or more of the ports of the housing when the sector is rotated into alignment with the ports in the housing. Selective rotation of the rotor about the central axis to a selected rotational position opens and closes various fluid paths through the rotor and the housing.