baber/WOPTO huggingface dataset:
Patent CA-2068660-C (CA)
Title: Non-invasive method for isolation and detection of fetal dna
Inventor: BIANCHI DIANA W
IPC: C12N5/08
Filed: 1990-11-13
Granted: 2007-05-01
Abstract: A method of isolating fetal nucleated cells, particularly fetal nucleated erythrocytes, from a maternal blood sample, by means of an antigen present on the cell surface of the fetal erythrocytes. A method of detecting fetal DNA of interest, which is a gene or gene portion associated with a disease or condition, a chromosomal abnormality or sex-specific DNA, in a maternal blood sample. The presence or absence, as well as the quantity of fetal DNA of interest in a maternal sample can be determined. The claimed method of detection can be used prenatally or postnatally and is particularly useful because it is noninvasive and can be carried out early in pregnancy.
Patent CA-2068850-C (CA)
Title: Multilayer flow electrospray ion source using improved sheath liquid
Inventor: MYLCHREEST IAIN CHARLES
IPC: H01J49/10
Filed: 1992-05-15
Granted: 1999-03-30
Abstract: An electrospray ion source in which the liquid sample is sheathed with a sheath liquid which reduces the formation of water droplets and minimizes formation of high energy neutrals, resulting in improved signal-to-noise ratios.
Patent CA-2070012-C (CA)
Inventor: PURTILO DENNIS L
IPC: A47L15/22
Filed: 1992-05-29
Granted: 1995-03-07
Abstract: A wash arm construction for a dishwasher includes an elongated wash arm having a hollow spray cavity contained therein.  Within the spray cavity are one or more subcompartments which have inlet openings providing communication from the spray cavity into the subcompartment.  A first group of these spray openings is in direct communication with the spray cavity, and a second group of openings is in direct communication with the subcompartments. The size of the openings to the subcompartments from the spray cavity cause a lower spray pressure to be achieved within the subcompartments than is achieved in the spray cavity.
Patent CA-2081183-C (CA)
Title: Mechanical brake for a hoist and traction machine
Inventor: NISHI YOSHIO
IPC: B66D5/22
Filed: 1992-10-22
Granted: 1994-11-15
Abstract: A mechanical brake for a hoist and traction machine, which is provided at  braking surfaces of a driving member opposite to  lining plates with brake releasing force control layers each comprising a plating layer made of nickel phosphate , nickel chromium or chromium and heat-treated, so that the surface condition of each braking surface of the driving member can be controlled and the surface hardness can be diminished , whereby an initial force for the brake releasing during the lowering a load or the releasing traction thereof is adapted to be lower.
Patent CA-2082543-C (CA)
Title: Low fat spreads and dressings
Inventor: HEERTJE ISSAC
IPC: A23L27/60
Filed: 1992-11-10
Granted: 1999-05-11
Abstract: A spread or dressing comprising a mesomorphic phase, said product comprising from 0 to 20 wt% of fat, 0.1 to 30 wt% of biopolymers and 0.1 to 30 wt% of edible surfactants.
Patent CA-2088778-C (CA)
Title: Transdermal contraceptive formulations, methods and devices
Inventor: MOO-YOUNG ALFRED
IPC: A61K31/57
Filed: 1991-10-25
Granted: 2001-08-14
Abstract: The present invention provides compositions and methods for the transdermal administration of a contraceptively effective amount of a synthetic 19-nor-progesterone (ST-1435) and an estrogen, in combination, together with a suitable permeation enhan-cer.
Patent CA-2089941-C (CA)
Title: Connector with press-fit terminal pins
Inventor: SCHEMPP OTTO
IPC: H01R12/58
Filed: 1993-02-19
Granted: 2004-04-13
Abstract: An electrical connector (10) includes a di-electric housing (14) having a plurality of apertures (24) receiving a plurality of terminals (26) having pin portions (28) projecting from the housing for insertion into complementary holes (30) in a printed circuit board (12). At least some of the terminals (26b) are mounted in the housing fox movement between first and second positions in response to mounting the connector to the printed circuit board. In the first position, the terminals are fixed relative to the housing to facilitate alignment and insertion of the pin portions into the holes in the printed circuit board. In the second positions, the terminals can float relative to the housing to accommodate a differential in thermal expansion between the housing and the printed circuit board.
Patent CA-2094144-C (CA)
Title: Methods and applications for efficient genetic suppressor elements
Inventor: RONINSON IGOR B
IPC: F02D41/20
Filed: 1991-10-11
Granted: 2003-05-06
Abstract: Methods for isolating and identifying genetic elements that are capable of inhibiting gene function are disclosed, as well as genetic elements isolated or identified according to the method of the invention and host cells modified by genetic modification using genetic suppressor elements according to the invention.
Patent CA-2097547-C (CA)
Inventor: DONALDSON SCOTT B
IPC: H03K17/687
Filed: 1993-06-02
Granted: 2004-05-25
Abstract: A system for sharing of switching losses of parallel transistors is disclosed. The system includes a plurality of switching transistors connected in parallel for providing a current to a load. A pulse generator provides pulse width modulated pulse cycles in response to the load current each pulse cycle having a pulse signal. An alternate selector is responsive to said pulse cycles, and provides the pulse cycles to the transistors, such that for each pulse cycle a predetermined transistor turns ON substantially prior to the other transistors, dissipating substantially all the turn ON losses, and a predetermined transistor turns OFF substantially later than other transistors, dissipating substantially all the turn OFF losses.
Patent CA-2103971-C (CA)
Inventor: FUJIWARA RYUHEI
IPC: H04L1/00
Filed: 1993-08-12
Granted: 1997-12-30
Abstract: In a speech decoding apparatus (100) supplied with an input speech signal (101) comprising successive blocks, each comprising a digital speech signal and an error detecting code signal, an error detector (8) detects an error in the digital speech signal by the error detecting code signal for each block to produce error detection pulses whenever the error detector detects the error.  The error detector also produces the digital speech signals of the blocks.  A speech decoder (9) decodes the digital speech signals of the blocks into an analog speech signal.  A measuring circuit (102) measures, as a measured value, the number of the error detection pulses during a predetermined time interval.  A comparator (15) compares the measured value with a reference value to produce a command signal when the measured value is greater than the reference value.  A generator (12) generates an alarm signal in response to the command signal.
Patent CA-2109898-C (CA)
Inventor: BRUNSON KEVIN K
IPC: A62B23/02
Filed: 1993-11-24
Granted: 1999-09-07
Abstract: A disposable mask that includes a filter media capable of filtering particles of a size appropriate for its purposes, while providing excellent breathability.      The mask is formed from multiple layers of filtration material having the general configuration of a trapezoid.      The mask is secured by straps to the head of a wearer.      The straps are arranged to be approximately coextensive with a line extending from the edges which define the opening of the mask so that the edges are pulled into tight sealing engagement with the face of the wearer.
Patent CA-2111354-C (CA)
Title: Olefin oligomerization process
Inventor: BHORE NAZEER A
IPC: C07C2/10
Filed: 1992-06-10
Granted: 2003-02-04
Abstract: A process for oligomerizing an alkene-containing feedstock comprises contacting the feedstock with a catalyst comprising an inorganic, porous, non-layered crystalline phase material exhibiting, after calcination, an X-ray diffraction pattern with at least one peak at a d-spacing greater than about 18 Angstrom Units and having a benzene adsorption capacity of greater than 15 grams of benzene per 100 grams of said material at 6.7 kPA (50 torr) and 25 °C.
Patent CA-2111872-C (CA)
Inventor: HOOD SHELDON
IPC: H04N5/225
Filed: 1992-08-05
Granted: 1998-04-28
Abstract: An electronically and mechanically expandable camera in which a tubular metal casing (10) having removable front (11) and back (12) plates has a CCD image sensor (17) mounted on a secondary front plate (23) removable received within the casing for a direct thermal path to the casing.  A driver board (13) is removably receivable at a position between the secondary front plate (23) and the back plate (12).  A logic board (18) is removably receivable at a position between the driver board (13) and the back plate (12). The camera's functions may be expanded or altered by adding option electronic board (19) modules between the logic board (18) and the back plate (12) of the camera, or by reconfiguring the logic board or by adding a different image sensor.  All of the components within the camera, all of the enclosure elements and all of the mounting hardware used in the camera can be easily and conveniently changed as desired.
Patent CA-2112199-C (CA)
Inventor: MAKIN COLIN
IPC: E04G9/10
Filed: 1993-12-22
Granted: 2005-02-01
Abstract: A heating apparatus for assisting in the curing of concrete includes a heater and pump for providing a supply of heated fluid to a network of tubing arranged on the back or non-working side of a concrete form. The heated fluid is used to maintain a desired temperature of the curing concrete to reduce the cure time and/or accelerate the strength gain of the curing concrete. In an alternative embodiment, a heated concrete blanket includes a flexible sheet material on the back side of which is arranged a network of tubing through which heated fluid is distributed. The flexible blanket is used to cover curing concrete and regulate the temperature adjacent to the curing concrete. In both embodiments, insulating material may be used to cover the network of tubing on the back side of the apparatus to prevent undesired heat loss.
Patent CA-2114993-C (CA)
Title: Peintures a base de poudres de polyamides destinees au revetement de profiles pvc
Inventor: D HERBECOURT BRUNO
IPC: C08J7/046
Filed: 1994-02-04
Granted: 2000-01-18
Abstract: L'invention concerne une composition de revêtement pour des profilés en PVC comprenant: a) un liant, b) un agent de réticulation, c) une résine thermoplastique finement divisée en suspension, d) un solvant; le liant étant tel qu'il laisse exsuder les additifs et plastifiants du PVC à travers le film de peinture qu'on obtient en réticulant ladite composition tout en formant un film adhérant au profilé PVC. L'invention concerne également l'utilisation de ladite composition pour le revêtement de profilés en PVC ou menuiseries et ses accessoires en PVC, de même que lesdits profilés ou menuiseries et ses accessoires.
Patent CA-2117543-C (CA)
Title: Dipeptidylquinazolones as anti-cancer agents
Inventor: BISSET GRAHAM M F
IPC: C07D239/90
Filed: 1993-03-16
Granted: 2002-12-03
Abstract: Quinazolines of formula (I) wherein R1 is hydrogen or amino, or R1 is alkyl, alkoxy or alkylthio each of up to 6 carbon atoms; or R1 is aryl or aryloxy each of up to 10 carbon atoms; or R1 is halogeno, hydroxy or mercapto; or R1 is alkyl of up to 3 carbon atoms which bears one or more substituents selected from halogeno, hydroxy and alkanoylamino each of up to 6 carbon atoms; or R1 is alkoxy of up to 3 carbon atoms which bears one or more substituents selected from hydroxy and alkoxy of up to 6 carbon atoms; wherein R2 is hydrogen or alkyl, alkenyl, alkynyl, hydroxyalkyl, alkoxyalkyl, mercaptoalkyl, alkylthioalkyl, halogenoalkyl, cyanoalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, alkanoylalkyl, carboxyalkyl, carbamoylalkyl or alkanoyl each of up to 6 carbon atoms; wherein Ar is phenylene or heterocyclene which is unsubstituted or which bears one or more substituents selected from halogeno, cyano, nitro, hydroxy, amino and carbamoyl and alkyl, alkoxy, halogenoalkyl, alkanoylamino, alkylthio and alkoxycarbonyl each of up to 6 carbon atoms; R3 is the residue of a dipeptide in which the first, N-terminal amino acid residue thereof attached to the carbonyl group of COR3 is an amino acid residue (a) in which A is a carbon-carbon single bond or an alkylene group of up to 5 carbon atoms and V and V' are each separately hydrogen, or alkyl, alkenyl or alkynyl each of up to 6 carbon atoms; and the second amino acid residue is of an .alpha.-amino acid or a pharmaceutically-acceptable salt, ester or amide thereof are of therapeutic value, particularly in the treatment of cancer.
Patent CA-2119191-C (CA)
Title: Interactive games and method of playing
Inventor: GUMINA ANTHONY
IPC: A63F3/06
Filed: 1994-03-16
Granted: 2004-10-12
Abstract: Interactive games provide a player with an opportunity to use skill and knowledge of conventional game strategy to facilitate greater player interest. The games described herein include simulated versions of blackjack, draw poker, hold'em, pick seven and roulette which are playable on video display terminals, scratch-off cards or pull tab cards interchangeably. Each casino game described herein has been modified for use with the card and video format to provide a simulated game which incorporates the strategy of the related casino game.
Patent CA-2119769-C (CA)
Inventor: PETTERSEN ALF
IPC: G01S5/16
Filed: 1992-10-09
Granted: 2005-06-07
Abstract: Method and system for point by point measurement of spatial coordinates, in which a touch probe (8; 14) comprising three point sized light sources (9, 10, 11, 17, 18) at known local coordinates relative to a local probe fixed coordinate system and with a touch point (12) at known location relative to said local coordinate system, is used such that said touch probe touches the point to be measured.      A single opto-electronic angle sensor (13) for measurement of spatial direction towards point sized light sources (9, 10, 11, 17, 18) is set up such that its field of view/work area covers the essential parts of the object to be measured, and such that the light sources of said touch probe are seen from the angle sensor (13) for all the relevant measurement points. The spatial direction for each of the light sources of the touch probe are registered simultaneously. Based on the registered spatial directions, the position and orientation of the touch probe are calculated relative to said single angle sensor, and such that the position of the touch probe is related to its point of contact with the measured object.
Patent CA-2123890-C (CA)
Title: Novel sulfonic acid derivative and medicinal use thereof
Inventor: OHNO KIYOTAKA
IPC: C07D307/93
Filed: 1993-09-17
Granted: 1998-01-20
Abstract: The present invention discloses sulfonamide derivative represented by the following general formula:     (see fig. I) [wherein, R1 is (i)  -COOR2 (where, R2 is (1) hydrogen, (2) a pharmacologically acceptable cation, or (3) an alkyl having 1 to 14 carbon atoms) or, (ii) -C(=O)-R3 (wherein, R3 represents an alkyl having 1 to 4 carbon atoms); A is (i)  -(CH2)n- (wherein, n represents an integer of 0 to 3), (ii)  -CH=CH-, or the group: (iii)  -O-C(R4)(R5)- (wherein, R4 and R5 represent (1) hydrogen or (2) an alkyl having 1 to 4 carbon atoms, and R4 and R5 may be identical or different); and, W is NH or -O-], as well as a thromboxane A2 receptor antagonistic drug having said derivative for its active ingredient.      Since the compound of the present invention has excellent thromboxane A2 receptor antagonistic action, it can be used as a thromboxane A2 receptor antagonist of high activity and long duration.
Patent CA-2124544-C (CA)
Title: Method and apparatus of mounting a lens
Inventor: KAMAKURA MITSUTOSHI
IPC: G02B7/02
Filed: 1994-05-27
Granted: 1998-12-22
Abstract: The present invention provides a method for mounting a lens on a light emitting diode chip.  The method includes the steps of placing the package on an XY-stage which can move in a horizontal XY-plane.  A driving current is replenished to the device chip.   The device emits light beams from the emanating region out of the main surface.   The emanating region is observed by a camera which can displace in a vertical Z-direction.  The centre of the emanating region is determined by an intensity projection method and a gravity measurement method.   The centre of the emanating region is harmonized with the centre of the camera by moving the XY-stage in the XY-plane.   The XY-stage  is displaced by a predetermined distance in a predetermined direction to a spot just below a dispenser which can move in the Z-direction.  The dispenser is sunk until a bottom tip of the dispenser comes into contact with the device chip.   A dose of ultraviolet hardening resin is supplied to the chip from the dispenser by contacting the dispenser with the chip.   The dispenser is lifted and the XY-stage  is displaced by a predetermined distance in a predetermined direction to a spot just beneath a vacuum collet holding a lens which can move in the Z-direction.  The vacuum collet is lowered until the lens comes into contact with the resin and with the main surface of the light emitting device chip.  The lens is pushed against the chip by the vacuum collet.  The ultraviolet hardening resin is irradiated with ultraviolet rays.  The lens is fixed on the main surface of the chip by stiffening the resin.  The vacuum collet is then lifted from the lens.  This provides a rear surface, emission type light emitting diode which emits light beams produced at a narrow emanating region out of the rear surface of the substrate in which the device chip has a lens mounted on its rear surface.
Patent CA-2127156-C (CA)
Title: Method in the regulation of a multi-layer headbox and a multi-layer headbox
Inventor: HUOVILA JYRKI
IPC: D21F1/06
Filed: 1994-06-30
Granted: 1999-09-07
Abstract: ABSTRACT    A method and device in the regulation of a pulp suspension flow in  a multi-layer headbox and a multi-layer headbox for a paper machine/board machine.  For the formation of different layers in the web, at least two pulp suspensions having different pulp concepts flow through the multi-layer headbox.  The flow of a pulp suspension that forms one of the layers in the web is regulated by regulating the component flows that constitute this flow and regulating the concentration of the component flows independently from one another.  In this manner, i.e., by regulating only this the particular layer, the total flow of the pulp suspension leaving the headbox is regulated.
Patent CA-2132004-C (CA)
Inventor: PELLETIER PIERRE
IPC: H02J3/38
Filed: 1994-01-26
Granted: 2004-10-12
Abstract: The method of interconnecting first and second synchronous polyphase AC  networks is for regulating transfer of active power from one of the AC networks to the other. The method involves the steps of for each phase line of the first AC network (a) connecting a first one of a first susceptance to the phase line of the first AC network; (b) connecting a first end of a second susceptance to the phase line of the first AC network; (c) applying to a second end of the first susceptance a first phase voltage derived from the second AC network; and (d) applying to a second end of the second susceptance a second phase voltage derived from the second AC network. the second phase voltage being phase shifted with respect to the first phase, voltage. One of the susceptances is inductive and the other of the susceptances is capacitive. In operation, a phase shift between the first and the second phase voltages forces a regulated transfer of active power from one of the AC networks to the other. These is also provided an interconnecting apparatus for the same purpose.
Patent CA-2138401-C (CA)
Title: Process and tool for laying underground collector mains for liquids and gases
Inventor: BAYER HANS-JOACHIM
IPC: E21B43/08
Filed: 1994-04-21
Granted: 2001-03-27
Abstract: For the induction of underground collector mains, in particular for the construction of horizontal filter wells and drainage mains, at least one bore (1) having respectively an inlet aperture (3) and an outlet aperture (4) is introduced into predetermined layers of soil. Then a filter strand drawing in unit (5) which consists of an inner filter strand and an outer protective pipe is inducted into the respective bore (1) and finally the outer protective pump of the filter strand drawing in unit (5) is removed. The filter strand in unit is used as a tool consisting of an inner filter strand and an outer protective pipe. In a preferred further development, the intermediate space between the inner filter strand and the outer protective pipe is provided with filter sand and/or a filter gravel filling.
Patent CA-2141694-C (CA)
Inventor: ISHMAEL DAVID L
IPC: G09F15/00
Filed: 1995-02-02
Granted: 1999-05-18
Abstract: A door display device is adapted to be mounted to a vertical support, and includes a rectangular display frame having a rectangular display opening therein.  The display frame is pivotally mounted to a vertical support for pivotal movement about a vertical display axis.  A door assembly may be fitted within the display opening of the rectangular display frame and secured in place. Indicia panels may be provided within the rectangular display opening of the display frame.
Patent CA-2142150-C (CA)
Title: Motion compensation for interlaced digital video signals
Inventor: KRAUSE EDWARD A
IPC: G06T7/20
Filed: 1995-02-09
Granted: 1999-06-01
Abstract: A method and apparatus are provided for motion compensated-coding of interlaced digital video signals.  A first prediction error signal is obtained indicative of the difference between a current portion from a field of a current video frame and a similarly situated first portion in the same field of a prior video frame.  A second prediction error signal is obtained indicative of the difference between the current portion and a similarly situated second portion in an opposite field of the prior video frame.  A third prediction error signal is obtained indicative of the difference between the current portion and an average of the first and second portions.  One of the first, second and third prediction error signals is selected to represent the current portion. Motion vector information is provided to enable the current frame portion to which the selected prediction error signal corresponds to be reproduced by a decoder.
Patent CA-2145340-C (CA)
Inventor: ARANTES ANTONIO CREMILDO
IPC: B23K9/133
Filed: 1995-03-23
Granted: 2004-09-28
Abstract: The automatic welding installation includes a robot arm with an assembly face (13) for welding torches held in a rack (21) and provided with an assembly face (47). The robot arm incorporates a locking/unlocking device (63-65) for welding torches, and is provided with means for supply of welding wire to these torches. The installation is characterised by the fact that the torches consist of a part (44) with the assembly face (47), and a movable nose-piece (40) which is connected to the part (44) and can be positionally adjusted by a distance control unit (45). Welding wire is supplied through a guide tube (43) consisting of two parts which are axially slidable relative to one another and are fixed respectively to the nose-piece (40) and the part (44) of the torch.
Patent CA-2148877-C (CA)
Title: Highway and airport sound barriers pre-stressed hollow core concrete panels
Inventor: UNDERHILL GEORGE R
IPC: E01F8/00
Filed: 1995-05-08
Granted: 1998-10-27
Abstract: An elongated outdoor acoustic barrier for erection along a roadway or the periphery of an airport, for reflecting and absorbing sounds emanating from the roadway or airport, includes a plurality of substantially vertical columns arrayed at spaced intervals along the barriers' length, each having a recessed groove extending along its exposed above-ground lateral surface facing an adjacent spaced column; and a plurality of elongated flat rectangular panels arranged in a vertical edgewise array at least one panel in height, having opposite panel ends each securely embraced in a respective recessed grooves of a pair of adjacent columns, at least one of the panels being an extruded pre-stressed hollow core concrete panel.