baber/WOPTO huggingface dataset:
Patent AU-712759-C (AU)
Title: TNF-alpha converting enzyme
Inventor: BLACK ROY A
IPC: A61K31/00
Filed: 1996-06-03
Granted: 2001-08-09
Abstract: A metalloprotease that converts TNF- alpha  from the 26kD cell form to the cell form to the 17 kD form has been isolated and purified and the cDNA sequence known. In particular, the protease has a molecular weight of approximately 80 kD. The isolated and purified protease is useful for designing an inhibitor thereof, and may find use as a therapeutic agent. Assays for detecting the protease-inhibiting activity of a molecule are also an aspect of the invention.
Patent CA-2000011-C (CA)
Inventor: MORRISH ANDREW J
IPC: H04N3/22
Filed: 1989-10-02
Granted: 1994-11-29
Abstract: A vertical scan circuit for a display is described which allows automatic picture height and centering. The deflection voltages at the start and end of active video time, are stored by capacitors fed via switches activated by signal pulses. These stored voltages are compared to margin reference voltages Vtmref and Vbmref which correspond to the desired top and bottom of the picture as displayed for a particular monitor. The maximum deflection voltage on flyback (Vmax) and the slope of the signal (dv/dt) are adjusted so that the top margin voltage (Vtm) and the bottom margin voltage (Vbm), bear desired relationships to these reference voltages (Vtmref and Vbmref respectively), thus ensuring that the top and bottom of the picture as displayed remains constant for different screen formats.
Patent CA-2001215-C (CA)
Title: A method of storage and retrieval of digital map data based upon a tessellated geoid system
Inventor: DAWSON JOHN F
IPC: G06F17/30
Filed: 1989-10-23
Granted: 2001-01-02
Abstract: A method for storage and retrieval of digital map data representative of a tessellated sphere including five zones.      Firstly, the number of tessellations for each zone is defined. secondly, the range of each zone is defined. Next, the radius of the sphere is defined. A spherical data base is then created by warping the digital map data into the spherical data base by latitude and longitude. Finally, data from the spherical data base is retrieved and the data may be displayed on a CRT display or a flat panel liquid crystal display.
Patent CA-2001611-C (CA)
Inventor: LONSBERRY KENNETH F
IPC: F04C2/02
Filed: 1989-10-26
Granted: 1993-12-14
Abstract: LUBRICATION OF GEAR PUMP TRUNNIONS     ABSTRACT OF THE DISCLOSURE    A  thrust  plate for a gear pump or motor which permits the  use of high pressure fluid from the outlet side thereof to  lubricate  the  trunnions  and  bushings  therein.   The thrust   plates   include   two  small   bores  which  pass therethrough  and  which  are  in fluidic communication with the  inlet  side  of  the pump via the surface of the thrust plate  that  confronts  the  gears  within  the  pump.   The foregoing  bores  are also in fluidic communication with the bushings  by  means of associated slots in the opposite side of  the thrust plate.  The opposite ends of the bushings are in   fluidic   communication   with   fluid  at  atmospheric pressure.   By  minimizing  the  size of the foregoing bores and  by  allowing  the  passage of fluid through same to the inlet  side  of  the  pump  via  the  gear tooth confronting surface   of  the  thrust  plate,   pressure  gradients  are created   across   the   trunnions   and   their  associated bushings.   These  pressure  gradients permit high pressure fluid  to traverse outwardly from the thrust plate along the surface  of  the trunnions to the approximate end thereof to lubricate   same   and  then  to  move  inwardly  along  the trunnions  toward  the thrust plate and to pass therethrough via the bores therein.
Patent CA-2011949-C (CA)
Inventor: SU KAI C
IPC: B29D11/00
Filed: 1990-03-12
Granted: 2000-12-12
Abstract: An ultraviolet radiation absorbing contact or intraocular lens and method of making the same, comprising a polymeric lens material to which is covalently bonded at least one halotriazine reactive ultraviolet radiation absorbing agent of the formula (see formula I) wherein A and E2 are ultraviolet radiation absorbing groups which are either identical to or dissimilar to each other, or of the formula IB (see formula II) wherein X is C1 or F; A is an ultraviolet radiation absorbing group; and E1 is an aqueous soluble group.
Patent CA-2013711-C (CA)
Title: A method and an arrangement for controlling a rock drilling apparatus
Inventor: RAJAKALLIO PAULI
IPC: E21B44/06
Filed: 1990-04-03
Granted: 2000-10-03
Abstract: The invention relates to a method and an arrangement for adjusting the percussion and the feed of a rock drilling apparatus with respect to each other. In the method, the volume flow of pressure fluid to be supplied to a percussion device (7) and a feed motor (8) is adjusted on the basis of the feed pressure of the feed motor (11), a volume flow adjusted pump (1) being controlled so that the ratio of the pressure applied to the percussion device (7) to the pressure of the feed motor (11) is set by control valves (10, 14). In the arrangement, pressure fluid is supplied to the percussion device (7) and the feed motor (11) by means of a volume flow adjusted pump (1). The arrangement further comprises control valves (10, 14) by means of which the volume flow of the pressure fluid fed by the pump (1) is kept such that the ratio of the pressure of the percussion device and that of the feed motor (11) remains substantially constant.
Patent CA-2014050-C (CA)
Title: Process for injection molding fluid-filled plastic bodies and apparatus for carrying out the process
Inventor: JAROSCHEK CHRISTOPH
IPC: B29C45/17
Filed: 1990-04-06
Granted: 1995-03-07
Abstract: The invention relates to a process for injection molding fluid-filled plastics bodies and to an apparatus for carrying out this process, in which in the first instance a flowable plastics melt (4) under pressure is injected into a mold cavity (7) formed by the clamping of a two- or multi-part mold (5) through at least one nozzle (17) until this mold cavity is completely filled, and only after solidification of the plastics melt (4, 12) has begun at the walls of the mold cavity (7) is a fluid (13) under pressure injected into the interior of the plastics melt (4, 12) in the mold cavity (7) such that the still molten core (4) of the resulting plastics body is expelled into at least one ejectable secondary cavity (18, 19) arranged outside the mold cavity (7) and connected thereto.
Patent CA-2015683-C (CA)
Inventor: CECCHIN GIULIANO
IPC: C08F210/02
Filed: 1990-04-27
Granted: 2002-01-08
Abstract: Polypropylene compositions having valued plasto-elastic properties, in the form of spheroidal flowable particles with an average diameter included between 500 and 7000 um having the following composition:        A) 10-60 parts by weight of homopolymer polypropylene with isotactic index greater than 90, or of crystalline propylene copolymer writh ethylene and/or an alpha olefin such as butane-1, pentene 1 or 4-methyl-1-pentane, containing over 85% by weight of propylene and having an isotactic index greater than 85;        B) 10-40 parts by weight of a polymer fraction containing ethylene, insoluble in xylene at roars temperature;        C) 30-60 darts by weight of an amorphous copolymer ethylene-propylene fraction optionally containing small proportions of a diene, soluble in xylene at room temperature and containing 40-70% by weight of ethylene.
Patent CA-2015997-C (CA)
Title: Process for producing vanadium-arenes
Inventor: CALDERAZZO FAUSTO
IPC: C07F9/00
Filed: 1990-05-03
Granted: 2000-07-18
Abstract: Vanadium-arenes [V(arene)2] (arena = benzene or mono-, di-, or poly-alkyl-substituted benzene) are obtained, with a high yield, by means of the reduction of a vanadium-arene iodide with zinc, manganese or iron in metal form, or with cobalt di-(cyclopentadienyl).      Vanadium-arenes are useful in the preparation of catalyst components active in ethylene polymerization, or in the copolymerization of ethylene in an alpha-olefin.
Patent CA-2021529-C (CA)
Title: N,n'-bis(alkoxyalkyl)-pyridine-2,4-dicarboxylic acid diamides, preparation and their use
Inventor: GUENZLER-PUKALL VOLKMAR
IPC: C07D213/82
Filed: 1990-07-19
Granted: 1997-12-30
Abstract: N,N'-Bis(alkoxyalkyl)-pyridine-2,4-dicarboxylic acid diamides, preparation and their use The invention relates to N,N'-bis(alkoxyalkyl)-pyridine-2,4-dicarboxylic acid diamides of the formula I                          (I) wherein R1, R2, n, R1', R2' and n' have the meanings given. The compounds inhibit proline hydroxylase and lysine hydroxylase and are suitable as fibrosuppressants and immunosuppressants.
Patent CA-2023220-C (CA)
Inventor: PETERSON LARRY WALLACE
IPC: E06B3/667
Filed: 1990-08-14
Granted: 1997-09-09
Abstract: In a spacer frame for use in separating panes of glass of an insulated glass panel, a cornerpiece has first and second arms joined by a flexible hinge to permit angular movement of said arms with respect to one another. The first and second arms each have a first portion that has a cross-sectional area substantially equal to the cross-sectional area of a spacer bar into which they are inserted, and a second portion that protrudes from the spacer bar that is of a cross section larger than said first portion to form a shoulder that is adjacent and abutting the end of the spacer bar. The shoulder is substantially continuous around its perimeter tosubstantially eliminate moisture paths from outside said spacer bar to the interior of the spacer bar. The folded corner presents an essentially solid mass that prevents moisture from entering the spacer bar. The cornerpiece also includes anangled projection that extends from a first end of the first arm and a slot formed in the first end of the second arm, the projection and slot cooperating with oneanother to form an interference fit that releasably holds the first and second arms in a desired angular relationship. A first surface of each of said first and second arms has a series of sawtooth-like serrations formed thereon that interferes with an interior surface of the spacer bar to aid in maintaining the arm in the spacer bar.
Patent CA-2024245-C (CA)
Title: Multilocation queuing for telephone calls
Inventor: CUSCHLEG ROBERT F JR
IPC: H04M11/08
Filed: 1990-08-29
Granted: 1994-03-15
Abstract: MULTILOCATION QUEUING FOR TELEPHONE CALLS Abstract This invention relates to methods and apparatus for queuing calls to a multilocation service provider having a plurality of automatic call distributors(ACDs). If all circuits to the ACDs are unavailable, a call is queued in one of a plurality of queues. One or more of these queues will allow call completion to any ACD of the service provider as soon as an agent of that ACD becomes available. Advantageously, the average waiting time for customers to that service provider is reduced, thereby improving service. In accordance with one feature of the system, the caller can select one of a plurality of choices of music on hold as offered by the service provider.
Patent CA-2027153-C (CA)
Title: Optical recording/reproducing device with automatic gain control (agc) dependent control functions
Inventor: FUJI HIROSHI
IPC: G11B7/126
Filed: 1990-10-09
Granted: 1996-02-06
Abstract: The  optical  recording/reproducing  device  of  the present invention has an AGC circuit that emits an AGC voltage to be used for controlling the amplification of a reproduced signal in accordance with the amplitude of the reproduced  signal,  and  a  controller  where  permissible ranges for the AGC voltage value is set for recording operation,  for  erasing  operation  and  for  reproduction operation,  that,  when  an  optical  recording  medium  is loaded and when one of the recording operation, erasing operation  or  reproduction  operation  is   instructed, compares  the  AGC voltage  with  the  permissible  range corresponding to the instructed operation and determines whether  the  AGC voltage   is   comprised  within  the permissible range for the instructed operation, and that sets the conditions for the instructed operation for each optical  recording  medium  being  loaded  in  the  device.          Reproduction/recording/erasing  operations  may  be  thus accurately executed in accordance with the characteristics of the recording medium being loaded in the device.
Patent CA-2027949-C (CA)
Title: Particle classification
Inventor: DOWNING BARRY JOHN
IPC: G01N22/00
Filed: 1990-10-18
Granted: 1999-08-24
Abstract: In the method, particles (16) are classified by locating them in a resonance cavity (10) and applying a swept range of microwave radiation to the cavity. The transmitted signals are detected and analysed. The particle is then assigned to a classification in accordance with changes in the dielectric characteristics of the cavity as a result of the presence of the particle. The radiation is polarised and is applied in at least two mutually orthogonal directions. With the particle located at the centre of the cavity, where the E-field is a maximum, and with signals propagating in at least two mutually orthogonal direction, account is taken of dimensional and orientational inaccuracies from particle to particle.
Patent CA-2030269-C (CA)
Title: Perforate projection screen
Inventor: HOPPER CLAYTON L
IPC: G03B21/56
Filed: 1990-11-19
Granted: 1994-07-19
Abstract: PERFORATE PROJECTION SCREEN                 ABSTRACT OF THE DISCLOSURE    A perforate projection screen for movies, planetariums and the like having uniform reflectivity throughout its visible surface.    The screen is made from a plurality of perforate panels and is mounted, when in use, with a dark non-reflective chamber behind the screen.  Any overlapped areas of the panels and any frame members or other objects, in close proximity to the back of the panels are covered with a black velour type material having vertically extending fibers to absorb the light rays entering the holes in those areas of the panels and thereby prevent light reflection from such holes which would cause undesirable light strips or areas to be visible in the overlapped portions of the screen or in the area of the screen where frame members or other objects are in close proximity to the back of the panel.
Patent CA-2032666-C (CA)
Title: Process for the production of a ceramic fiber/matrix composite material, and composite material obtained by this process
Inventor: PARLIER MICHEL
IPC: C04B35/571
Filed: 1990-12-19
Granted: 1995-12-12
Abstract: The matrix is formed by particles of ceramic material which are introduced into the empty spaces of a fibrous  structure and are bonded to one  another by bridges of ceramic material obtained by in situ pyrolysis of a liquid polymer.        By means of this process, a composite material of low porosity, despite a high reduction in volume during pyrolysis, is obtained relatively rapidly.
Patent CA-2045167-C (CA)
Title: Spark-discharge lithography plates containing image-support pigments
Inventor: LEWIS THOMAS E
IPC: B41N1/14
Filed: 1990-11-26
Granted: 1993-09-07
Abstract: (57) Abstract A lithographic printing plate that is transformable by spark-discharge techniques so as to change its affinity for ink. The plate features a layered structure including an ink-receptive substrate, a conductive layer and an ink-repellent coating. The ink-repellent coating contains a dispersion of crystalline metal oxide particles that promote straight line travel of the spark to the sur-face of the plate, thereby promoting accurate imaging.
Patent CA-2048347-C (CA)
Title: Process for the preparation of deoxynucleosides
Inventor: GREEN KENNETH E
IPC: C07D239/54
Filed: 1991-08-02
Granted: 2002-01-29
Abstract: An improved process for the preparation of 2' and 3'-(halo-substituted)-2',3'-dideoxy nucleosides by reacting a protected anhydrothymidine compound with a halogenating composition containing a substituted organoaluminum compound which exhibits greater solubility in conventional solvents than AlF3.
Patent CA-2054254-C (CA)
Title: Adsorbent and cleaning method of waste gas containing ketonic organic solvents
Inventor: HARADA MASASHI
IPC: B01J20/18
Filed: 1991-10-25
Granted: 2001-06-12
Abstract: An adsorbent comprising zeolite with an amount of solid acid of not more than 0.05 mmol/g as determined by pyridine temperature programed desorption method and with a SiO2/Al2O3 molar ratio of not less than 50, and a method of cleaning waste gas containing ketonic organic solvents are disclosed.
Patent CA-2056507-C (CA)
Title: Seed boot extension
Inventor: LONG JOHN D
IPC: A01C5/06
Filed: 1991-11-28
Granted: 1997-10-07
Abstract: A flexible seed boot extension fabricated from an ultra-high molecular polyethylene sheet and releasibly held in position by a slot and retaining lug so that seed bounce and soil coverage variations are reduced while desired seed flow from the boot to the furrow is unrestricted.  The length of the extension is sufficient to prevent seed from bouncing out of the furrow and yet short enough that normal press wheel operation remains unimpeded.  The extension, which is constantly in contact with the soil, and is flexible and smooth to easily ride over objects and resist breakage soil build-up .
Patent CA-2064424-C (CA)
Title: Gain switchable optical fiber amplifier
Inventor: ZIRNGIBL MARTIN
IPC: H04B10/17
Filed: 1992-03-30
Granted: 1996-11-05
Abstract: An optical fiber amplifier has a lossy nonlinear medium connected between its input port and its output port. The resultant optical feedback loop permits remote gain switching of the optical amplifier.
Patent CA-2074703-C (CA)
Inventor: DRIVER F THOMAS
IPC: G01M3/00
Filed: 1992-07-27
Granted: 1996-01-30
Abstract: An elongated fluid detection device, together with a body of absorbent material, is located between the inner surface of a pipe and an impervious liner spaced from the inner surface thereof, the detection device being operatively connected to an external station.  The impervious layer may be of a type normally used for relining defective pipes in situ, and the body of absorbent material, together with the fluid detecting element, preferably substantially filling the cylindrical space between the inner surface of the pipe and the impervious liner.
Patent CA-2076832-C (CA)
Title: Steering arm elliptical radius
Inventor: WRONKIEWICZ ROBERT D
IPC: B61F5/52
Filed: 1992-08-25
Granted: 1995-04-11
Abstract: A steering arm assembly for a railway truck has compound fillets between the cross-beam or body portion and each sidearm to provide increased flexural strength to the assembly while maintaining the clearance between the steering arm and truck components.
Patent CA-2084402-C (CA)
Inventor: STOLE HAAKON
IPC: B01D21/24
Filed: 1990-04-27
Granted: 2000-06-06
Abstract: L'invention se rapporte à un procédé et à un moyen permettant d'évacuer des particules s'étant déposées dans un courant de fluide à l'intérieur d'un bassin de sédimentation (2). Au fond du bassin de sédimentation (2) est placé un canal de décharge (1) pouvant comporter une vanne de décharge (6). Au fond du bassin de sédimentation est disposée une unité longitudinale flexible (4) qui est conçue avec une forme permettant l'ouverture ou la fermeture de l'espace compris entre le canal de décharge (1) et le bassin de sédimentation (2). L'unité (4) peut remonter ou descendre le canal de décharge (1), de sorte que l'espace et, par conséquent, le point où se situe l'attaque d'aspiration du bassin de sédimentation (2) par le canal de décharge (1) peuvent se trouver en n'importe quel point sur toute la longueur du canal de décharge (1).
Patent CA-2085925-C (CA)
Title: Wireband wireless communications transceiver
Inventor: WONG DONALD HO-YIN
IPC: H04B1/40
Filed: 1992-12-21
Granted: 1997-06-10
Abstract: A wideband transceiver using contiguous overlapping frequency range local oscillators (32, 34) for a high side or a low side local oscillator and an intermediate frequency approaching, within commercialy practical limits, but not exceeding one half of the total limited oscillator frequency range (71).
Patent CA-2086538-C (CA)
Title: Transmissions of the toroidal-race rolling-traction type
Inventor: FELLOWS THOMAS GEORGE
IPC: F16H15/38
Filed: 1991-07-12
Granted: 2001-10-02
Abstract: A ratio-varying component for a transmission of the toroidal-race rolling-traction type, in which each of the rollers (1) transmitting torque between an input disc (51, Fig. 3) and a corresponding output disc (40) is positioned hydraulically by means of an attached hydraulic piston (5) and cylinder (6) combination, in which all the cylinders lie to the same side of a common plane (43a) including the axis (43) of the discs. The cylinders may be supported on a common block-like structure (41), in which hydraulic conduits (31a, 32a, 37a, 44) may be contained.
Patent CA-2087532-C (CA)
Inventor: HARPOLD MICHAEL MILLER
IPC: C12Q1/68
Filed: 1991-08-07
Granted: 1998-11-03
Abstract: Transcription based assays that identify extracellular signals that modulate the activity of cell surface proteins are provided. Extracellular signals are indentified by measuring the amount of transcription o f a reporter gene in a recombinant cell that expresses the cell surface protein and contains DNA encoding the reporter gene u nder the transcriptional control of a promoter that is regulated, directly or indirectly, by the cell surface protein. The assa ys provide a means for identifying potiential pharmaceutical compounds that can be used to treat disease by virtue of their agonistic or anta gonistic effects on the cell surface protein. Recombinant cells that express cell surface receptors and that contain reporter gene constructs that include transcriptional regulatory elements that are responsive to the activity of the cell surface receptors are a lso provided.
Patent CA-2090157-C (CA)
Inventor: TENNANT DONALD MILAN
IPC: G03F1/24
Filed: 1993-02-23
Granted: 1996-07-30
Abstract: Fabrication of reflective masks, designed for use with x-ray delineating radiation in the construction of sub-micron devices, is expedited by use of a barrier layer intermediate the multilayer reflector and the absorber layer. The barrier is designed to reduce damage to the multilayer reflector during two stages of fabrication - during initial patterning and during subtractive or additive mask repair. Composition of the barrier is so chosen as to minimize such damage during its removal in baring of the reflector, and also as to have requisite stability in regions retained during mask life.
Patent CA-2091488-C (CA)
Title: Method and apparatus for the orientation of a plastic pipe
Inventor: JAERVENKYLAE JYRI
IPC: B29C48/13
Filed: 1993-03-11
Granted: 2001-05-29
Abstract: A method and an apparatus for the orientation of a plastic pipe, wherein a pipe blank (2) is produced with an extruder and fed into a pipe forming apparatus provided with movable moulds (3), such as a corrugator, the pipe being conveyed forward in the corrugator with said moulds over a mandrel (4), along which the pipe is further conveyed out from the corrugator. In accordance with the invention, the plastic pipe (7) is oriented radially immediately after the corrugator by means of a conically widening mandrel (5) forming an extension of said corrugator. The invention also relates to an oriented ribbed plastic pipe produced by the method.
Patent CA-2093905-C (CA)
Title: High-strength steel parts and method of making
Inventor: GALLAGHER HUGH M JR
IPC: C21D7/00
Filed: 1991-07-30
Granted: 1999-11-30
Abstract: High strength steel parts and method of making are disclosed by providing a blank of high-strength steel material having a tensile strength of at least about 120,000 psi and a yield strength of at least about 90,000 psi and warm forming the blank to provide the part of desired geometric configuration while substantially maintaining the strength properties of the blank.