baber/WOPTO huggingface dataset:
Patent CA-2077355-C (CA)
Title: Multicore optical connector
Inventor: YAMAKAWA JUN
IPC: G02B6/44
Filed: 1992-09-02
Granted: 1999-08-24
Abstract: A multicore optical connector includes a connector body having a pair of alignment pin holes and a plurality of optical fiber holes formed therebetween and optical fibers inserted in the optical fiber holes such that the end faces of the optical fibers are exposed through the optical fiber holes. In the multicore optical connector, the optical fiber holes are divided into optical fiber hole groups of a number which coincides with the number of the groups of the optical fibers, and the optical fiber hole groups are separated from one another.
Patent CA-2078612-C (CA)
Title: Optical waveguide with a substantially planar substrate, and process for its production
Inventor: HEMING MARTIN
IPC: C23C16/511
Filed: 1992-09-18
Granted: 1999-08-24
Abstract: An optical waveguide is disclosed with a substantially planar substrate and a waveguide layer applied to the substrate. The invention resides in that the substrate consists of a synthetic resin or of a material having a high organic proportion. This has the advantage that the high index of refraction of the inorganic waveguide layer is combined with the material properties of the synthetic resin substrate, such as, for example, breaking resistance, plastic and thermoplastic moldability, photochemical structuring ability, and others.
Patent CA-2083687-C (CA)
Title: Automatic constant wavelength holographic exposure system
Inventor: ARNS JAMES A
IPC: G03H1/04
Filed: 1992-11-24
Granted: 1997-03-04
Abstract: A hologram exposure system that includes a spherically curved  mirror  surface  positioned  adjacent  a  sub-strate/hologram assembly that includes a spherically curved hologram recording layer supported by a spherically curved substrate surface, wherein the spherically curved mirror surface is concentric with the spherically curved substrate surface.  A first rotating means provides for rotation of the curved mirror surface about a first axis that passes through  (a)  the center of curvature of the spherically curved substrate surface that supports the hologram record-ing layer, and (b) a point on the hologram recording layer that allows for convenient rotation about the first axis; and a second rotating means provides for rotation of the curved mirror surface about a second axis that is ortho-gonal to the first axis and intersects the first axis at the center of curvature of the substrate surface that supports the hologram recording layer.  The desired holo-gram area of the recording layer is holographically exposed by  controllably  rotating  the  mirror/recording  layer/-substrate assembly about the first and second axes while illuminating the assembly with an exposure beam that is incident on the recording layer at the intersection of the recording layer with said first axis and passes through the recording layer to be reflected by said mirror surface.
Patent CA-2084703-C (CA)
Title: Battery operated toothbrush arrangement
Inventor: CAFARO MICHAEL
IPC: A61C17/26
Filed: 1992-12-07
Granted: 1995-09-26
Abstract: A brush member has two ends and includes a brush portion at one end,  the brush portion including a plurality of bristles extending outwardly.  A gripping member houses a motor and includes a drive rod connected to the shaft of the motor for rotatably driving the bristles,  the brush member being detachably attached to the gripping member.  A battery case houses a rechargeable battery and a recharging circuit for recharging the rechargeable battery.   The battery case is detachably  attached to  the other end of the gripping member whereby electric power is provided from the battery to the motor for driving the motor.   When travelling,  the brush member,  gripping member and battery case are detached from each other and  are conveniently  stored in a travel case.
Patent CA-2089225-C (CA)
Title: Method and apparatus for modulated differential analysis
Inventor: READING MICHAEL
IPC: G01N25/48
Filed: 1993-02-10
Granted: 1995-07-25
Abstract: The present invention relates to differential analytical techniques for determining the composition, phase, structure, identification or other properties of a material that undergoes a transition as function of a driving variable.          As applied to differential scanning calorimetric analysis (DSC), the preferred embodiment comprises:  (1) heating a sample of the material with a linear temperature ramp that is modulated with a sinusoidal heating rate oscillation; and (2) deconvoluting the resultant heat flow signal into rapidly reversible and non-rapidly reversible components.
Patent CA-2089775-C (CA)
Title: Louver frame and method of installing a louver in the frame
Inventor: EMMERSON TERRY N
IPC: E04B9/24
Filed: 1993-02-18
Granted: 1995-06-27
Abstract: A frame for a louver holds the louver below the ceiling surface, away from a light fixture. This helps to collimate the light rays and direct the light downward, thus preventing unwanted sideways glare. In addition, the use of a frame tends to hold the louver more securely in the ceiling framework. The frame is formed of Z-shaped members, with one arm of the Z resting on the T-bar cross-bar and the other arm supporting the louver. A stop along one side of the frame prevents movement of the louver in the frame. In one aspect of the invention, rotatable angle supports at the ends  of the frame rotate from a vertical position for use during louver  installation to a horizontal  supporting position  for  supporting the louver in the frame.
Patent CA-2092220-C (CA)
Title: Paper coating composition containing a zirconium chelate insolubilizer
Inventor: FLOYD WILLIAM C
IPC: D21H19/64
Filed: 1993-03-23
Granted: 2003-10-14
Abstract: A paper coating composition is prepared containing a pig-ment, a binder and as an insolubilizer for the binder a zirconium chelate containing an alpha-hydroxy carboxylic acid ligand.
Patent CA-2103049-C (CA)
Inventor: PERCIVAL CHRISTOPHER J
IPC: G01M11/02
Filed: 1993-03-05
Granted: 1999-10-05
Abstract: Optical properties of a lens, including localized defects, are determined by analyzing the refracted image produced by transmitting a beam of light through an aperture (16) and a lens (12) to be tested. The image is reflected onto a light sensitive detecting surface (20). Information obtained from the light detecting surface is digitized and sent to an image processing unit (24) which calculates the optical properties of the lens. The aperture may consist of a single shaped opening or alternatively a plurality of concentric, annular rings. Correction lenses (30, 32) may be employed, either permanently or selectively, to alter the refracted beam before the beam intersects the detective surface.
Patent CA-2105120-C (CA)
Inventor: SAITO TAKESHI
IPC: F16K3/24
Filed: 1993-08-30
Granted: 1998-05-05
Abstract: A high differential pressure control valve having a plurality of stages of high resistance ports forming a high resistance passage and one or more low resistance ports forming a low resistance passage in a cage.  The number of stages of low resistance ports is smaller than that of the high resistance ports so that a fluid at the side of an inlet passage is introduced into the high resistance passage under a low open degree range and into both the low resistance passage and the high resistance passage under a medium and a high open degree ranges.
Patent CA-2106411-C (CA)
Title: Process for crystallizing melt with adiabatic cooling and apparatus for the same
Inventor: MORITA MINORU
IPC: B01D9/00
Filed: 1993-09-17
Granted: 1999-08-31
Abstract: An adiabatic evaporation and cooling of a solvent from a melt of organic chemicals containing the solvent is conducted in a crystallizer 1. Crystals which are formed by this operation are removed from the crystallizer 1 and vapor from the crystallizer 1 is introduced to an absorption condenser 2. A feed solution of the melt is introduced to the absorption condenser 2 in which it is brought into contact with the vapor to condense the vapor. The condensate is introduced to the crystallizer 1.
Patent CA-2107990-C (CA)
Inventor: PETERSON RALPH SCOTT
IPC: D21F1/56
Filed: 1993-10-07
Granted: 1997-01-21
Abstract: Paper machine deckle defining structure is protected from fiber accumulations by a uniformly distributed water film that continuously flows from a flat, horizontal upper surface over all smoothly faired lower surfaces of the deckle elements.
Patent CA-2109257-C (CA)
Inventor: KAWABE MANABU
IPC: H04J13/00
Filed: 1993-10-26
Granted: 1997-03-18
Abstract: A demodulator for code-division multiple-access spread-spectrum communications stores received chip data in a separate memory area for each transmitting station.  Each area has a capacity of at least two symbols.  When a complete symbol is received from a transmitting station, all chip data stored in the corresponding memory area are correlated with the corresponding spreading code, and estimated symbol values are derived from the correlated values.  The correlated or estimated value of the oldest symbol is output as a demodulated value. The difference between each estimated symbol value and the previous estimate for the same symbol is multiplied by the spreading code to generate remaining interference values, which are subtracted from all chip data stored in memory areas for other transmitting stations, thereby updating those data.
Patent CA-2114541-C (CA)
Inventor: PLOCHOCKA KRYSTYNA
IPC: C08K3/30
Filed: 1992-07-31
Granted: 2004-03-30
Abstract: What is provided herein is a stabilized aqueous solution of a C1-C5 alkyl vinyl ether and maleic acid copolymer which includes about 100 to 1,000 ppm of (1) an additive mixture of (a) about 30-70 % by weight of ethylenediaminetetraacetic acid EDTA and (b) about 30-70 % by weight of a secondary additive which is an organic antioxidant and/or free radical scavenger selected from t-butylhydroquinone, propyl gallate and N,N-diethylhydroxylamine; or (2) 10-500 ppm of an inorganic reducing agent such as sulfur dioxide and salts derived from sulfur dioxide and alkali metals such as sodium or potassium bisulfite, sodium or potassium metabisulfite, sodium or potassium thiosulfite, or sodium or potassium sulfite, said stabilized solution exhibiting a retention of at least about 85-90 % of its original viscosity after 3 months.
Patent CA-2114717-C (CA)
Title: Fur grooming apparatus
Inventor: MADDEN MARC P
IPC: A46B3/18
Filed: 1992-08-03
Granted: 2004-04-20
Abstract: A fur grooming apparatus includes a base portion and a twisted wire operatively connected to the base portion.      Brush bristles are retained by and extend radially outwardly from the spiral twist of the wire for brushing a live animal as it passes against the bristles.
Patent CA-2116798-C (CA)
Inventor: DAVIS ROBERT
IPC: B65B43/56
Filed: 1994-03-02
Granted: 2004-07-27
Abstract: A method of loading product into a soft bag held within a rigid case comprises loading the case onto a vertically movable case support in a direct path beneath a chute to which the product is fed. The bag is opened while it is held between the chute and the case with the case spaced below the bag. The case is then raised to meet the bag from below after the bag is opened and the open bag is then pushed into the case. From there, the bag is loaded with the product which is dropped from the chute into the bag.
Patent CA-2120426-C (CA)
Title: Oil cooling device
Inventor: ROTTER TERRENCE M
IPC: F28F3/12
Filed: 1994-03-31
Granted: 2001-02-13
Abstract: An oil filtering and cooling device for use with an internal combustion engine is disclosed. It is composed of few components and easily fitted on or retrofitted to an internal combustion engine. In one embodiment, a pressure valve is employed to direct oil away from a cooling function yet allow for filtering thereof. The valve is a reed valve.
Patent CA-2122600-C (CA)
Inventor: SKOBELEV VALERY VIKTOROVICH
IPC: A61M60/424
Filed: 1992-09-02
Granted: 1998-10-13
Abstract: The invention  relates  to  a  pump  for  biological fluids, for example for blood transference by  pump.  The pump according  to  the invention comproses a housing (1) in which there are placed at least one resilient tube (3) for passing  biological fluid,  and an operating head (5) rotated  in  the  direction  of  fluid  transference  and including at  least one roller member (6) to bear against the tube (3),  said roller member (or each roller member) comprising at  least  two  rollers  (7,8)  positioned  in series so that the roller (7) of said roller member which is preceding  in  the  direction  of  the  operating head rotation allows greater tube (3) aperture than  does  the roller (8) of the same member (6) that follows.     The pump  has  simple  and  convenient   means   for adjusting the  degree  of  compressing  the  tube  (3) by the rollers   (7,8)   and   ensures   blood   transfusion causing practically no damage to the blood cells.     (Fig.1)
Patent CA-2126799-C (CA)
Inventor: WATANABE SHIGEHIRO
IPC: F24H9/18
Filed: 1994-06-27
Granted: 1997-10-14
Abstract: Discloses a heat-insulating structure for combustion equipment of such a type that a burner element of combustion equipment is insertedly disposed at an installation opening of thermal equipment such as a boiler, with a view to simplified structure and enhanced workability.  In combustion equipment (B) having a burner element (20) insertedly disposed at the installation opening (1) of the thermal equipment (A) via the support frame (30) , a thermal insulator (50) flush with the burner element (20) on the thermal equipment (A) side is disposed between the installation opening (1) and the outer side face of the support frame (30).
Patent CA-2132180-C (CA)
Inventor: PIEROBON VICTOR
IPC: H04B7/26
Filed: 1994-09-15
Granted: 2001-07-31
Abstract: The present invention provides for a massive array cellular system consisting of a electromagnetic transceiver capable of simultaneously sending and receiving electromagnetic signals of multiple frequency. The transceivers are also capable of communicating with each other to relay electromagnetic signals of multiple frequency from one transceiver to another. The present invention also provides for individual massive array cellular system devices and for the protocol for the operation of the devices.
Patent CA-2142895-C (CA)
Title: Vaccum deposition and curing of liquid monomers
Inventor: AFFINITO JOHN D
IPC: H01M10/05
Filed: 1993-07-30
Granted: 2002-06-18
Abstract: The present invention is the formation of solid polymer layers under vacuum.  More specifically, the present invention is the use of "standard" polymer layer-making equipment that is generally used is an atmospheric environment in a vacuum, and degassing the monomer material prior to injection into the vacuum. Additional layers of polymer or metal or oxide may be vacu-um deposited onto solid polymer layers. Formation of polymer layers under a vacuum improves material and surface characteris-tics, and subsequent quality of bonding to additional layers. Further advantages include use of less to no photoinitiator for cur-ing, faster curing, fewer impurities in the polymer electrolyte, as well as improvement in material properties including no trapped gas resulting in greater density, and reduced monomer wetting angle that facilitates spreading of the monomer and provides a smoother finished surface.
Patent CA-2145154-C (CA)
Inventor: MACHIDA MINORU
IPC: F01N13/04
Filed: 1995-03-21
Granted: 1999-01-19
Abstract: Filter has a filter main body, a container, a first counter room, and a second counter room.          A counter air is introduced into the first counter room through the counter air discharge valve, and fine particles trapped in the filter main body are removed and transported to the second counter room.  Then, the removed fine particles are further transported to a process portion isolated from an exhaust gas passage, and the fine particles are fired in the process portion.          Since the process portion is isolated from the exhaust gas passage, the fine particles in the process portion is not returned to the filter main body.  Moreover, since the fine particles are transported by the counter air only to the second counter room, it is possible to reduce an amount of the counter air.
Patent CA-2147768-C (CA)
Inventor: ST JOHN JAMES F
IPC: A23L33/20
Filed: 1993-10-22
Granted: 2002-01-01
Abstract: The present invention relates to a lowfat confection comprising a chocolate of full fat texture, said chocolate comprising a fat or fat substitute present in 20.0-24.5 % (w/w), and nonfat solids comprising nutritive carbohydrate sweetener, nonfat cocoa solids and an edible emulsifier. The present invention further relates to a process for producing a lowfat chocolate and more spe-cifically, to the process of preparing and formulating said product compositions.
Patent CA-2157727-C (CA)
Inventor: WEIGAND DAVID L
IPC: H04W92/20
Filed: 1995-09-07
Granted: 1999-08-10
Abstract: An apparatus and method provides synchronous communication in a communication environment (102) wherein multiple base stations are adapted to operate on the same frequencies. In particular, the base stations which operate within range of one another must be coordinated to minimize interference with other base stations which may otherwise operate independently. Each base station operating in a system will determine whether another base station operating on the same frequencies is within range (310). One of the base stations will assume a role as a master and the remaining base station will then synchronize to the master base station (312). The preferred methods for synchronizing the base stations includes signaling protocols (702, 902) and collision avoidance techniques for digital multiple access communication systems.
Patent CA-2163425-C (CA)
Inventor: DIXON ROBERT C
IPC: A61B5/028
Filed: 1994-05-31
Granted: 2004-07-27
Abstract: Système de mesure de débit de liquide à l'intérieur d'un conduit (10), tel que le débit sanguin en provenance du coeur, qui comporte un élément de chauffage (12) commandé de manière à transmettre de la chaleur au liquide en une position amont sous forme de série de signaux de chaleur périodiques. Un capteur (14) de température situé en aval mesure une température locale du liquide et produit un signal électrique de température de liquide correspondant à la température locale. Ledit signal est ensuite appliqué sur un filtre (22) de dispersion qui produit un signal de type impulsion en présence de chaque signal de chaleur périodique. Le débit de liquide est ensuite calculé par un processeur (18) en tant que fonction de la zone correspondant à une courbe de réponse d'impulsion estimée pour le conduit dans lequel coule le liquide. Chaque signal de chaleur périodique est de préférence sinusoïdal et possède une fréquence instantanée qui varie pratiquement en permanence entre une première fréquence et une seconde fréquence sur une période de signal d'entrée active prédéterminée. Dans un mode de réalisation préféré, la fréquence varie de manière linéaire entre des première et seconde fréquences sur une durée prédéterminée. Le signal de sortie du filtre (22), qui est lui-même une estimation de la réponse d'impulsion de conduit, est de préférence intégré afin de fournir une estimation de paramètre qui est inversement proportionelle au débit. Le procédé correspondant de mesure du débit de liquide à l'aide d'un signal de chaleur d'entrée à déviation de fréquence et du filtrage de dispersion adapté est également décrit.
Patent CA-2172173-C (CA)
Title: Steer axle brake assembly
Inventor: WHITE JAY DUDLEY
IPC: F16D65/14
Filed: 1996-03-20
Granted: 2001-05-29
Abstract: A pair of arcuate brake shoes in a vehicle brake assembly are pivotably supported on a pivot pin which is directly mounted to a steering knuckle arid activated by an S-cam type actuator where an S-cam actuator shaft is supported in a support tube which is affached directly to the steering knuckle thereby eliminating the traditional brake spider. Rotation of the S-cam causes a pair of cam followers to separate the brake shoes resulting in frictional contact between the brake shoes and a brake drum. Elimination of the brake spider to support the pivot pin and the S-cam actuator shaft housing reduces complexity for lower cost and improved performance.
Patent CA-2173830-C (CA)
Title: Methode de preparation de simvastatine et de leurs analogues
Inventor: KUBELA RUDOLF
IPC: C07F5/02
Filed: 1994-11-03
Granted: 1998-04-07
Abstract: L'invention concerne un procédé pour la préparation de la simvastatine et de ses analogues à l'aide d'un nouvel intermédiaire (III), ce qui permet une alkylation sélective de carbone en position .alpha. de la chaîne latérale acyle C-8.
Patent CA-2174605-C (CA)
Inventor: LJUNGARS STEN
IPC: C21D8/02
Filed: 1996-04-19
Granted: 2006-01-17
Abstract: The invention relates to a method of working a hot-rolled stainless steel strip, particularly an austenitic stainless strip, with the intention of reducing the thickness and enhancing the mechanical strength of the strip. The method is characterized by - cold-rolling the hot-rolled strip with at least a 10% thickness reduction to a thickness which is at least 2% and at most 10% greater than the intended final thickness of the finished product; - annealing the thus cold-rolled strip at a temperature of between 1,050°C and 1,250°C; and - cold-stretching the strip after the annealing process so as to plasticize and permanently elongate the strip and therewith reducing its thickness by 2-10%.
Patent CA-2174689-C (CA)
Inventor: ARDON MENACHEM TSUR
IPC: H04L12/66
Filed: 1996-04-22
Granted: 2000-03-07
Abstract: A method of apparatus for offering multiple switch access to selected lines and trunks of a multiple telecommunications switch complex. The selected lines and trunks are connected to peripheral units whose outputs are distributed by a network to a group of switches. The switches are interconnected by a second network. Advantageously, the selected lines can be served by several switches sothat the failure of one switch does not deprive these lines of service. Advantageously, the two networks and the group of switches form a giant switch having high reliability.
Patent CA-2175221-C (CA)
Inventor: BELINKA BENJAMIN A JR
IPC: C07F9/38
Filed: 1994-09-15
Granted: 2000-01-18
Abstract: L'invention concerne un procédé de purification d'acides aminophosphoniques dans des conditions non alcalines. En particulier, on forme une pâte épaisse d'acides aminophosphoniques dans une eau neutre ou acide, on la chauffe au reflux, on la refroidit et ensuite on la filtre. On obtient ainsi un produit ayant une pureté approchant 100 %.
Patent CA-2175472-C (CA)
Inventor: MATHUR RAJIV
IPC: A61K8/14
Filed: 1994-10-25
Granted: 2003-09-09
Abstract: Disclosed are lipid vesicles containing a blend of amphiphiles, including pr opylene glycol stearate, in the lipid bilayers. The vesi cles may have either an aqueous or oil-filled central cavity and are particularly useful for delivering dermatological cosmetic and pharm aceutical formulations. A method of manufacture for these vesicles is also disclosed.< /SDOAB>
Patent CA-2177871-C (CA)
Title: Process for making ethylene oxide-capped polyols from double metal cyanide-catalyzed polyols
Inventor: PAZOS JOSE F
IPC: C08G69/26
Filed: 1996-05-31
Granted: 2009-07-28
Abstract: A process for making high-primary, low-unsaturation polyols is disclosed. A polyol made by double metal cyanide (DMC) catalysis is blended with a polyol made by basic catalysis, and the polyol blend is reacted with ethylene oxide to produce an ethylene oxide-capped polyol. The process overcomes problems of the conventional recatalysis approach to making EO-capped polyols from DMC-catalyzed polyols.