baber/WOPTO huggingface dataset:
Patent WO-02102514-A1 (WO)
Title: Microvolume liquid dispenser suitable for microarrays and methods related thereto
Inventor: MACAULAY CALUM E
IPC: B01L3/02
Filed: 2002-06-19
Abstract: Microvolume liquid dispensers that provide simple and inexpensive approaches to making cytology microarrays. In some embodiments, the dispensers comprise tips that comprise an outer sleeve, typically shaped like a funnel, that holds a reciprocating needle or pin. The tip of the pin slightly extends beyond the distal opening of the outer sleeve in one position, and is retracted in another position. When the pin is in the distal position the pin contacts the inner surfaces of the sleeve and blocks cytology liquid from flowing through the opening of the sleeve. Thus the pin and sleeve cooperate to form a reservoir behind the blockage. When the pin is pushed up into the sleeve, for example by touching the tip to a glass slide, a passage is formed between the outer surface of the pin and the inner surface of the sleeve. The liquid in the reservoir then flows through the passage and onto the slide. Removing the tip from the substrate moves the pin back to its original position, re-forming the reservoir and leaving a predetermined microvolume amount of the liquid on the slide.
Patent CA-2001637-A1 (CA)
Title: Electrical power control apparatus and methods
Inventor: CARDER TIMOTHY J
IPC: A61B18/12
Filed: 1989-10-27
Abstract: ABSTRACT OF THE DISCLOSURE       Conventional electrosurgery apparatus includes an r.f.  power amplifier with an output to a patient electrode.  The amplifier is controlled by the level of an input voltage to the amplifier.  In the present invention, the input to the amplifier is provided by signals from a control unit which receives a sample of the voltage and current of the output signal.  The voltage and current signals are supplied to A/D converters to provide two digital signals that are used to address a look-up table in an EPROM and provide a digital output representative of impedance.  A switch is set by the user to the desired mode/power curve and this provides a digital signal which together with the impedance signal is used to address a second look-up table in an EPROM which contains digital representations of the required output voltage of the amplifier to produce the desired power level.  An adder compares the required voltage with a feedback of the actual voltage to produce an error signal that is supplied to the amplifier to control its output.
Patent CA-2006059-A1 (CA)
Title: Optical fibre end piece for an optical fibre
Inventor: MARAZZI SILVIO
IPC: G02B6/36
Filed: 1989-12-19
Abstract: Abstract.            The core (4), of plastically deformable material, is supported and fastened in the hollow cylindrical outer part (2), of relatively hard material, on a supporting shoulder (6). Moreover, especially good results can be aimed for if the core (4) is slightly mushroom shaped and exhibits a disc (7) with a shank (8). The disc (7) can accommodate temperature determined dilatations especially well.          Figure 1.
Patent CA-2008084-A1 (CA)
Title: System for sealing relatively movable elements
Inventor: YOUNGER GILBERT W
IPC: F16J15/16
Filed: 1990-01-18
Abstract: ABSTRACT OF THE DISCLOSURE      The present  invention provides  a system  for  sealing relatively movable elements, including relatively  rotatable members under pressure.  A first relatively rotatable member includes a peripheral  groove for retaining  a seal, as  for example, an O-ring.  A  resilient element is located  within the groove beneath the seal and exerts an outwardly directed force on the seal causing the  outer surface of the seal  to abut  against  the  outer  surface  of  an  adjacent  second relatively rotatable  member.   Fluid pressure  between  the first and second rotatable members is channeled beneath  the seal to  supplement  the resilient  force  on the  seal  and maintain the seal in a contiguous abutting relationship with the outer surface of the second relatively rotatable member. The resilient  element  includes  a  plurality  of  separate resilient components spaced apart from each other to provide space for thermal expansion of the seal.
Patent CA-2009745-A1 (CA)
Title: Indole derivatives
Inventor: NORTH PETER C
IPC: A61K31/40
Filed: 1990-02-09
Abstract: ABSTRACT                           INDOLE DERIVATIVES       Compounds are disclosed of formula (I) (I)   wherein R1 represents a C1-6alkyl group; R2 represents a hydrogen atom or a C1-3alkyl group; n represents zero or an integer from 1 to 3; and pharmaceutically acceptable salts thereof.            The compounds are useful for the treatment of migraine, cluster headache, chronic paroxysmal hemicrania and headache associated with vascular disorders.      Processes and intermediates for their preparation and pharmaceutical compositions containing them are also disclosed.
Patent CA-2010138-A1 (CA)
Title: Electronically commutated motor having an increased flat top width in its back emf waveform, a rotatable assembly therefor, and methods and methods of their operation
Inventor: KREFTA RONALD J
IPC: H02K29/06
Filed: 1990-02-15
Abstract: An electronically commutated motor is disclosed including a stationary assembly having a plurality of winding stages adapted for commutation in at least one preselected sequence and a rotatable assembly having a plurality of permanent magnet elements in magnetic coupling relation with the stationary assembly. The permanent magnet elements are adapted to sequentially apply a magnetic field having a substantially constantly increasing magnetic flux to each respective winding stage during the period that current is supplied to the respective winding stage as the rotatable assembly rotates. The permanent magnet elements are also adapted to sequentially apply a magnetic field having a substantially constantly decreasing magnetic flux to each respective winding stage during a period that current is not supplied to the respective winding stage as the rotatable assembly rotates. A rotatable assembly, a method of operating the motor, and a method of rotating the rotatable assembly are also disclosed.
Patent CA-2010233-A1 (CA)
Title: Positioning system
Inventor: NAGAYASU ISAO
IPC: G05D3/14
Filed: 1990-02-16
Abstract: ABSTRACT OF THE DISCLOSURE        A positioning system moves a movable element along a path and detects the movable element in a plurality of predetermined positions spaced along the path.  The movable element is positioned selectively in the positions using a signal indicative of the detected movable element in the positions and a positioning command.
Patent CA-2022228-A1 (CA)
Inventor: PANSTER PETER
IPC: C08G77/48
Filed: 1990-07-30
Abstract: Aminoalkyl-substituted organopolysiloxane thioureas are disclosed which consist of the units    <IMAGE>  (I)  whereby R1 stands for a group    <IMAGE> (II)  R5 is an alkylene grouping, R2 is equal to R1 or H, R3 is equal to R1 or H or a group (CH2)n-N(R6)2 (III) (in which n=1-6, R6=H or an alkyl group with C1-C5) and R4=H or a group of the formula (III), whereby (I) contains at most 2 (III) groups and at most 2 (III) groups and the free valances of the oxygen atoms sitting on the silicon atom are saturated by silicon atoms of other (III) groups, optionally with the insertion of cross-linking agents containing Si, Ti or Zr. The compounds can be random copolycondensates, block copolycondensates or mixed copolycondensates in relation to the optionally present cross-linking agents. In addition, various methods of preparing the compounds are indicated. The compounds can be used especially for the removal of dissolved metals from aqueous or organic phases.
Patent CA-2022516-A1 (CA)
Inventor: INADA KAZUYOSHI
IPC: A61P29/00
Filed: 1990-08-02
Abstract: Novel  saccharide derivatives  of  protocatechu-aldehyde represented by the general formula (I):         (I) wherein  R1 represents a hydrogen atom or  a  benzoyl group, and R2 represents an alkyl group.    The method for preparing thereof and the use  of the compound as antiinflammatory agents.
Patent CA-2026160-A1 (CA)
Title: Flow Switch
Inventor: SMITH RONALD J
IPC: H01H35/40
Filed: 1990-09-25
Abstract: The invention contemplates a flow-switch construction of the straight flow-through variety wherein a magnet-bearing piston is displaced in response to a hydraulic-flow condition and in the displacement is caused to operate a magnetic-reed switch. The piston has piloted guidance, in a first longitudinal portion of an elongate bore but is characterized by one or more straight channels in its periphery, whereby the piston per se constitutes relatively little restriction to flow; the downstream end of the piston carries a metering disc which substantially resists channel flow as long as the metering disc has predetermined close-clearance relation with the first longitudinal portion of the bore. Immediately downstream from the first longitudinal portion, the bore is substantially enlarged in a second longitudinal portion, whereby upon piston displacement such as to advance the metering disc into the second longitudinal portion, the metering disc is by-passed and unrestricted straight-through flow proceeds to the outlet end of the bore.
Patent CA-2027024-A1 (CA)
IPC: G11B11/105
Filed: 1990-10-05
Abstract: A floating type magnetic head for magneto-optical recording is opposed to an optical head through a magneto-optical recording medium inserted therebetween. The magnetic head is supported in non-contact with the magneto-optical recording medium and includes a slider and a head core. The head core has a section located in parallel to the magneto-optical medium. The section is formed to be longer in the orthogonal direction of tracks contained on the medium than in the horizontal direction of the tracks.
Patent CA-2030392-A1 (CA)
Title: Substituted naphthalocyanines and their use
Inventor: BAUMANN MARCUS
IPC: G11B7/24
Filed: 1990-11-20
Abstract: Substituted naphthalocyanines and their use Abstract Compounds of the formula I                              (I), in which R is the group   and M is two H or is Cu or Ni, R1 is -OH, -Cl, -Br, C1-C30alkoxy or -OC(O)R2, m is an integer from 2 to 6 and n is a number from 1 to 20, and R2 is C1-C20alkyl, C2-C20alkenyl, cyclopentyl, cyclohexyl or C6-C10aryl or C6-C10arylmethyl which is unsubstituted or substituted by Cl-C18alkyl.   The compounds are dyes and IR absorbers and can be used for optical information storage systems employing diode lasers.
Patent CA-2032380-A1 (CA)
Title: Tobacco treatment process
Inventor: WHITE JACKIE L
IPC: A24B3/12
Filed: 1990-12-17
Abstract: RBI File No. 4109-085 ABSTRACT OF THE DISCLOSURE      Flavorful tobacco extracts are provided by subjecting a moist spray dried tobacco extract to heat treatment.  The moist extract is contacted with a sugar and an amino acid, and exposed to a temperature above about 100°C in a pressure controlled vessel.  Resulting flavorful extracts are useful as forms of tobacco in cigarettes and other smoking articles.
Patent CA-2033417-A1 (CA)
Title: Friction lining for disk brakes, more particularly for road vehicles and rail vehicles
Inventor: VALENTIN WOLFGANG
IPC: B32B7/02
Filed: 1990-12-28
Abstract: The friction lining for disk brakes comprises a carrier plate (10) and a block (16) of a compressed friction material secu-red to the latter, wherein the carrier plate, on the side bea-ring the block of friction material, is provided with a sinter-fused mounting bed (12) for the block of friction material of individual shaped members (13) forming frictional and positive connections with the block of friction material, in which, prior to the block of friction material is pressed onto the carrier plate (10) with the mounting bed sinter-fused there-upon, a galvanically, thermally or in some other suitable way produced metallic coating (50) is applied to the carrier plate as a corrosion protection.
Patent CA-2034017-A1 (CA)
Title: Scanning device for optically scanning a surface along a line
Inventor: VAN AMSTEL WILLEM D
IPC: H01L21/68
Filed: 1991-01-11
Abstract: An optical scanning device comprises an optical system for imaging a part of the surface (10) to be scanned on the detection system (22-25; 122-125). The optical system comprises an objective system (43) and two cylindrical lenses (41, 42) and/or two systems of cylindrical mirrors (141a, 141b, 142a, 142b). In the direction in which the cylindrical lenses (41, 42) have their optical power, the objective system (43) functions as an imaging lens so that a light-intensive and spatial image of the surface is formed at the detection system (22-25).      Due to the achieved large numerical aperture, the image formed can also be observed three-dimensionally so that information about the profile of the surface can be obtained by means of the scanning device.
Patent CA-2035216-A1 (CA)
Title: Oil-absorbent polymer and use therefor
Inventor: HOZUMI YOSHIYUKI
IPC: B01J20/26
Filed: 1991-01-29
Abstract: ABSTRACT OF THE DISCLOSURE       A swellable oil-absorbent agent formed of a cross-linked  polymer  (P)  obtained  by  polymerizing  a monomer component comprising 90 to 99.999% by weight of a monomer having as a main moiety thereof an alkyl (meth)acrylate the alkyl  group  of  which  has  10 to  16  carbon  atoms  and possessing  one  polymerizable  unsaturated  group  in  the molecular unit  thereof and 0.001  to  10% by weight of  a cross-linkable monomer possessing at least two polymerizable unsaturated groups in the molecular unit thereof (providing that the total of the amount of the polymerizable monomer and that of the cross-linkable monomer is 100% by weight).
Patent CA-2036513-A1 (CA)
Title: Mobile composting container
Inventor: DOLLE LOTHAR
IPC: B65D88/74
Filed: 1991-02-18
Abstract: Mobile compost bin Abstract The present invention relates to a mobile compost bin (1) in a closed container form (cube shape) comprising connections (2a, 2b) for supplying and carrying off air, a double bottom (3) formed from a lower bottom plate (4) and a perforated plate (5) arranged at a distance above it, a sewer pipe from the hollow space of the double bottom (3) and at least one loading hatch (6) in the top of the compost bin (1) as well as at least one unload-ing hatch (7) in a side wall of this bin (1).  To improve a com-post bin of this kind so that the usual disadvantages are to a large extent avoided, it is proposed that the hatches (6, 7) be respectively suspended in swivel joints (16a, b, c or 28a, b) from a clamping frame (10, 24), that the clamping frames (10, 24) be supported on the outer jacket of the compost bin (1) via swivel joints (15a, b, c or 27a, b), that the swivel joints (16a, b, c or 28a, b) be respectively arranged along the longitudinal axis of the hatches (6 or 7) and symmetrically to their transverse axis, and that clamping devices (20, 30) be provided with which the clamping frames (10, 24) can be respectively clamped to produce a sealing pressure force between the hatches (6, 7) and the support surfaces of the hatches (6, 7).
Patent CA-2041033-A1 (CA)
Inventor: BLISSETT MALCOLM G
IPC: A43B13/18
Filed: 1991-04-23
Abstract: A walking shoe and walking shoe sole with the sole heel portion and forefoot portion having integral resilient flexible compression protrusions having maximum extension at the rear edge of the protrusion, curving upwardly forwardly therefrom, and bounded by a groove that extends along both side edges and across the rear vertically offset edge of the protrusion, the groove increasing in depth toward the rear of the protrusion.  The rear of at least the forefoot protrusion is undercut.  The upper surface of the sole has at least one transverse cavity just forwardly of the rear edge of the protrusion.
Patent CA-2041911-A1 (CA)
Inventor: MALHOTRA SHADI L
IPC: B41M5/382
Filed: 1991-05-07
Abstract: A transparent substrate material for receiving or containing an image comprised of a supporting substrate, an ink toner receiving coating composition on both sides of the substrate and comprised of an adhesive layer and an antistatic layer contained on two surfaces of the adhesive layer, which antistatic layer is comprised of mixtures or complexes of metal halides, or urea compounds both with polymers containing oxyalkylene segments.
Patent CA-2042085-A1 (CA)
Title: Process for the preparation of retrovirus immunogens and vaccines against retroviral, notably hiv, infections and obtained immunogens and vaccines
Inventor: PELLOQUIN FRANCOIS
IPC: A61K39/00
Filed: 1991-05-08
Abstract: ABSTRACT             A PROCESS FOR THE PREPARATION OF RETROVIRUS IMMUNOGENS AND VACCINES AGAINST RETROVIRAL, NOTABLY HIV, INFECTIONS           AND OBTAINED IMMUNOGENS AND VACCINES     The supernatant from a retroviral particle culture such as HIV is inactivated  in two steps with beta-propiolactone at low temperature and     high temperature,  then concentrated by ultrafiltration, subjected to gamma-irradiation, purified, preferably, by dialysis, then    gel filtration and ion exchange chromatography, and heated to 60°C during at least one hour. Application for immunogens and HIV vaccines.
Patent CA-2043106-A1 (CA)
Title: Therapeutic agent
Inventor: GLASS MITCHELL
IPC: A61K38/05
Filed: 1991-05-23
Abstract: ABSTRACT            There is provided a novel therapeutic agent for use in the prevention or treatment of adult respiratory distress syndrome and for use in the manufacture of a medicament for the prevention or treatment of adult respiratory distress syndrome, as well as a method of prevention or treatment of adult respiratory distress syndrome with the therapeutic agent and a method of treatment of cystic fibrosis with the therapeutic agent in combination with one or more other agents indicated for the treatment of adult respiratory distress syndrome.
Patent CA-2043165-A1 (CA)
Title: Blade sharpening device and method
Inventor: COURCHESNE RICHARD L
IPC: B24D15/06
Filed: 1991-05-23
Abstract: ABSTRACT OF THE DISCLOSURE     A blade sharpener which has two elements, one of which is a hand-held member, and the other of which is a follower member is disclosed.   The two members are pivotally secured each to the other, and secured at variable preselected pivot points so that adjustments can be made for the particular skate, and for the particular cross-section of the blade desired at various points along the power toe section,  neutral under foot section,  and turning heel section.  Means are provided interiorly of the two members to optionally secure a file or a neutral member such as a wooden dowel to the end that varying portions of the blade can be sharpened  while  moving  the  hand-held  member  back  and  forth longitudinal of the blade.   Guide means are supplied on both members for securing the relationship of the file or abrading member to the blade in a preselected centralized orientation.  The method  of  the  invention  contemplates  sharpening  a  blade  by longitudinally stroking  he same with files having various cross-sections which are guided in fixed relationship to the blade to thereby develop the desired cross-section or cut of the blade at various points along its length.
Patent CA-2043492-A1 (CA)
Inventor: YUGE NORIYOSHI
IPC: C01B33/037
Filed: 1991-05-29
Abstract: Disclosed herein are a method and apparatus for purifying silicon, which are suitable for economical and mass production of high-purity silicon for solar cells from regular-grade silicon containing boron and carbon in large quantities. The method comprises directing a plasma jet stream of an inert gas toward the surface of molten silicon held in a container lined with silica or a silica-based refractory. For improved purification, the inert gas as the plasma gas is mixed with 0.1-10 vol% steam and/or less than 1 g of silica powder per liter of the inert gas at normal state. Alternatively, the container may have a bottom opening and is provided with an electrode having a cooling means underneath the bottom of the container, with the electrode and the cathode of the plasma torch connected to a power source for plasma generation, so that the plasma jet and electron beam are directed toward the surface of molten silicon.
Patent CA-2045166-A1 (CA)
Title: Method and apparatus for clock recovery in digital communication systems
Inventor: PEARSON JONATHAN D
IPC: H04L7/027
Filed: 1990-11-13
Abstract: PATENT     ABSTRACT OF THE DISCLOSURE      A technique for recovering a clock from a digitally encoded  communication  signal  uses  a  low-Q  resonator  and limiter for generating a coarse clock signal comprising a series of rectangular pulses at a frequency substantially equal to the clock (though subject to phase jitter), and a filter  circuit,   such  as  a  phase-locked-loop  ("PLL"), preferably employing a Sequential Phase/Frequency Detector, to reduce the jitter superimposed on the coarse clock signal, so as  to  yield  a  well-behaved  clock  signal.    By  using  a Sequential Phase/Frequency Detector, acquisition-aid circuitry generally is not required for the PLL.
Patent CA-2048491-A1 (CA)
Inventor: SEO MOON H
IPC: H04N7/025
Filed: 1991-08-06
Abstract: The present invention relates to teletext, in which the character  multiplex  signals of the  international   title  standard transmitted during  vertical  returning  periods  in  21H  line  can  be processed together  with those of  the North America  teletext  standard simultaneously by  the compatible digital  processing unit for  teletext and method thereof  in such a  manner that timing clocks and byte clocks are generated if  the character multiplex  signals of the  international title standard are  provided, in order  to store the character multiplex signals in the programmable RAM in  synchronization with the  generated clocks and to  generate the interrupt  request signals at the same time. therefore, the signals  transmitted in the  international title standard are compatibly converted  into  those  in  the  North  America  teletext standard according the interrupt request signals.
Patent CA-2048648-A1 (CA)
Title: Methode de fabrication de dispositifs electriques comportant un polymere conducteur
Inventor: BATLIWALLA NEVILLE S
IPC: H05B3/56
Filed: 1990-03-13
Abstract: On améliore le rendement thermique, les propriétés mécaniques et la résistance à la pénétration par l'eau d'un dispositif électrique (1), notamment un collier chauffant auto-régulateur, en appliquant une couche extérieure isolante (7) qui pénètre dans les interstices d'une tresse (6) qui entoure le collier chauffant. On peut assurer une pénétration appropriée en extrudant sous pression l'enveloppe extérieure (7) sur la tresse (6).