baber/WOPTO huggingface dataset:
Patent CA-2050350-C (CA)
Inventor: EKELUND BJOERN OLOF PETER
IPC: H04L27/20
Filed: 1990-12-13
Granted: 2000-07-25
Abstract: Procédé de compensation des non-linéarités dans un amplificateur terminal (F) ayant une fonction de transfert donnée, respectivement HR pour l'amplitude et HO pour la phase, ledit amplificateur terminal (F) étant incorporé dans un émetteur radio du type en quadrature afin d'obtenir une modulation numérique linéaire, et dans lequel des unités de tables de consultation (ST, CT) mémorisent les valeurs numériques du sinus et du cosinus (I(t, alpha), Q(t, alpha) des composantes en quadrature déterminées par un secteur de signal alpha donné. Suivant le procédé, les valeurs de fonction de transfert HR, HO des signaux radio r(t, alpha) modulés en quadrature sont calculées par des unités demémoires adressables (MH1, MH2) qui mémorisent un certain nombre de valeurs de HR et HO. Les valeurs sinus et cosinus des valeurs adressées de HR et HO sont également établies. Les valeurs calculés de la sorte sont ensuite multipliées par les valeurs numériques mémorisées dans les unités de tables de consultation (ST, CT) et par l'inverse de HR. En conséquence, on obtient de nouvelles valeurs modifiées i(t, alpha), q(t, alpha) pour les composantes en quadrature, ce qui permet de compenser les non-linéarités de l'amplificateur terminal.
Patent CA-2058307-C (CA)
Inventor: SZULC ANDRZEJ J
IPC: B21D31/02
Filed: 1991-12-23
Granted: 1996-05-07
Abstract: A method and hand powered tool for forming openings in metal wall-studs thereby to receive electrical cables, which can be easily pulled through these openings. The tool comprises pyramid-shaped piercer attached to a jaw which is pivotally connected to a handle having affixed hollow die. The piercer, pushed into stud's wall by lever, forms in the stud an opening having guiding tabs shaped from material displaced from the area of said opening.
Patent CA-2059764-C (CA)
Title: Method of attaching a haptic to an optic of an intraocular lens
Inventor: LINDSEY RAYMIE H
IPC: A61F2/16
Filed: 1992-01-21
Granted: 1996-01-16
Abstract: A method for attaching a polymethylmethacrylate haptic having a colored core to an optic of an intraocular lens, containing the steps of providing the periphery of the optic with a pair of intersecting holes, inserting an end of the haptic into one hole, inserting an end of an polymethylmethacrylate anchor strand having a colored core into the second hole so that the end of the anchor strand and the end of the haptic intersect, aiming a laser capable of a transmitting energy of a visible wavelength at the intersection of the first and second holes, firing the laser through the optic at the point of intersection of the end of the haptic and the end of the anchor strand, wherein the optic transmits, but essentially does not absorb, the laser energy and the core the anchor strand and the core of the haptic absorb a portion of the laser energy sufficient to fuse the end of the anchor strand and the end of the haptic at their point of intersection.
Patent CA-2070092-C (CA)
Title: Magnetic keeper accessory for wrench sockets
Inventor: VASICHEK RICHARD A
IPC: B25B13/06
Filed: 1992-05-29
Granted: 1996-11-05
Abstract: An accessory (10) for a wrench socket (12) is disclosed including a generally cylindrical magnet (32) secured to a generally cylindrical, nonmagnetic, compressible disk (26) . The disk (26) has a shape having at least portions extending over the inner periphery of the well (14) of the socket (12) and is deformable under force to pass into and snuggly fit within the well (14) and magnetically insulate the magnet (32) from the socket (12). The magnet (32) has a size smaller than the well (14) and is secured to the disk (26) generally concentrically within the well (14), with an air space being created between the magnet (32) and the well (14) for magnetically insulating the magnet (32) from the socket (12) in the most preferred form.  The accessory (10) is removably insertable into the socket (12) of any design and model and without need for modification of the socket (12) and captures a fastener (16) slideably received in the well (14) of the socket (12) to magnetically hold the fastener (16) captive in the well (14) as the socket (12) is moved to the fastening location while not magnetizing the socket (12) or the fastener (16) sufficiently to be detrimentally magnetically attracted to metal adjacent to the fastening location.  The first face (34) of the magnet (32) is secured to the second face (30) of the disk (26) in a first form.  In alternate forms, the magnet (32) is received in a recess (46) formed in the disk (26).  The recess (46) is also shown as being frusto-conical in shape and as including an undercut (50) to hold a complementary shaped and sized magnet (32) in the recess (46) without requiring the use of glue or adhesive.
Patent CA-2074467-C (CA)
Title: Skin electrode construction and transdermal drug delivery device utilizing same
Inventor: GROSS JOSEPH
IPC: A61N1/04
Filed: 1991-12-13
Granted: 2002-02-19
Abstract: A transdermal drug delivery device includes an electrode, a porour insulating layer on one side of the electrode and im-pregnated with a liquid containing the drug to be delivered, a reservoir for the liquid on the other side of the electrode, and a dis-placeable diaphragm controlling the feeding of the liquid from the reservoir to the porous insulating layer via a passageway through the electrode.
Patent CA-2094120-C (CA)
Title: Polymeric foam earplug
Inventor: GARDNER ROSS JR
IPC: A61F11/10
Filed: 1991-10-08
Granted: 2002-01-29
Abstract: The present invention pertains to hearing protective earplug constructions of the roll-down type. The earplug includes a resilient polymeric foam body (1) having a slow recovery viscoelastic nose section (3) and coextensive therewith, a relatively sub-stantially faster recovery, more elastic tail section (5). In one aspect the constructions employ means to limit the depth of insertion of the earplug into the ear canal and to facilitate proper insertion thereof.  In another aspect, the constructions employ polymeric foam bodies adapted to be compressed, inserted into the ear canal and there allowed to expand to obturate the ear canal and whose recovery time is markedly and inversely temperature dependent.
Patent CA-2096504-C (CA)
Title: Self-healing drop and insert communication network
Inventor: WEISSMANN EMANUEL
IPC: H04J3/08
Filed: 1993-05-18
Granted: 1996-02-06
Abstract: A self-healing drop/insert (D/I) communication method and network are provided.  The network comprises two end stations  and  a  chain  of  intermediate  D/I  multiplexer stations to which the two end stations are connected by two lines, so as to provide communication in both directions, East and West,  for multiple data and/or voice channels between any of the stations.  According to the invention, the end stations are collocated or located near one another and in the event of a break or failure in the network, they are interconnected to form one D/I multiplexer station, whereas the stations on each side of the break or failure become new end stations. The communication transmitted by the multiple data and/or voice channels is then redirected away from the point of break or failure, when it occurs, thereby  allowing  the  network  to  self-heal  and  remain operational after the break or failure.
Patent CA-2096536-C (CA)
Inventor: DUMONT PHILIPPE
IPC: C01F5/16
Filed: 1991-11-20
Granted: 2001-07-03
Abstract: A calcium and/or magnesium hydroxide having a water content of less than 50 % is characterized in that it has a specific surface area greater than 35 m<2>/g. A method for preparing said hydroxide comprises reacting CaO and/or MgO with an amount of water such that the resulting calcium and/or magnesium hydroxide has a water content of less than 50 %, in the presence of an amount of additive selected among glycols and/or amines. The method can be used in purifying acid gases in the building construction industry for the manufacture of mortars.
Patent CA-2105826-C (CA)
Title: Device for disaggregating cytological specimens
Inventor: CARRICO CHARLES LEO JR
IPC: G01N33/48
Filed: 1993-09-09
Granted: 1998-02-10
Abstract: A device for disaggregating cytological material contained within a sample vial and permitting the flow of the material to a tube. In order to obtain the disaggregation in shorter time and with less labour the device comprises: a) an elongated hollow body (10) configured to be slidably inserted into the sample vial, the body (10) having a top end, a bottom end and sides; b) sealing means (20) forming a liquid-impervious seal between the sample vial and the device when the device is inserted into the sample vial; c) a plurality of shear plates (26, 36), at least one of the shear plates being disposed across the bottom end of the body (10), the shear plates (26, 36) defining a plurality of holes (28, 38) of predetermined size effective to disaggregate the cytological material and to permit the disaggregated cytological material to traverse the shear plates (26, 36) and enter the body (10) when the body (10) is inserted into the sample vial; and d) means (14, 16) for connecting the top end of the body (10) to the tube (17), permitting the disaggregated cytological material to flow from the body (10) into the tube (17).
Patent CA-2108103-C (CA)
Title: Method and apparatus for the compression, processing and spectral resolution of electromagnetic and acoustic signals
Inventor: FATTOUCHE MICHEL T
IPC: H03H17/02
Filed: 1993-10-08
Granted: 2001-02-13
Abstract: A signal that may be represented by a band limited periodic function m(t) is transformed into its z-domain zeros using characteristics of the signal in the neighbourhood of fades of the signal, namely a bounds of the fades and the depths of the fades. The z-domain zeros are the zeros of the function in the complex plane, and represent local minimums of the function. The z-domain zeros are used to estimate the discrete spectrum of m(t), and the differential phase of m(t) is derived from the envelope of m(t) using the concept of the z-domain zeros. Also, speech is compressed based on the z-domain zeros of a signal m(t) that represents a speech signal, and knowledge of the location of fades is used in interference reduction at single moving antennas by applying a spectral resolution technique during a fade and applying notch filters to the signal to resolve the signal components.
Patent CA-2113965-C (CA)
Inventor: RAKOCY WILLIAM J
IPC: A47L5/36
Filed: 1994-01-21
Granted: 1997-03-04
Abstract: A tip-resistant canister for use in wet/dry vacuums is disclosed.  The tip-resistant canister has recessed caster supports and a skirt for resisting tipping.  The recessed caster supports lower the center of gravity of the canister thereby making the canister more difficult to tip.  The skirt of the canister, on the other hand, strikes the ground whenever the canister does begin to tip thereby preventing the canister from falling completely onto its side.  The impact of the canister skirt against the ground also has a tendency to cause the canister to return to an upright position.
Patent CA-2119503-C (CA)
Title: Wavelength division multiplexed optical communication transmitters
Inventor: KOCH THOMAS LAWSON
IPC: H04J14/00
Filed: 1994-03-21
Granted: 1999-02-16
Abstract: A wavelength-division-multiplexed transmitter has a single modulator modulating the output of an array of individually actuable semiconductor lasers integrated onto the same substrate as the modulator.  An optical combiner integrated onto the same substrate between each of the lasers and the single modulator combines the outputs of the lasers.  One or more of the lasers are activated as desired for wavelength division multiplexing.
Patent CA-2126666-C (CA)
Inventor: VANDENDRIESSCHE GEORGES
IPC: F01D5/30
Filed: 1993-10-27
Granted: 2005-05-10
Abstract: To manufacture a turbine wheel having blades made of a ceramic or composite material and inserted into a metal hub, firstly blades (16) are manufactured that are right cylindrical, each blade having a base (18) through which a hole is formed; a cylindrical ring (20) is formed, the ring being provided with orifices through which the bases (18) of the respective blades (16) are inserted: the blade bases (18) are successively threaded onto an open annular rigid metal wire (30); the resulting assembly (16, 20, 30) is disposed inside a sealed housing (161); hot isostatic compaction is performed so as to compact a metal alloy in powder form (41) inside the sealed housing (161) so as to make the hub of the turbine wheel (100) while embedding the blade bases (18) and the metal wire (30) by using the powder metallurgy technique; and the outside portion of the sealed housing (161) delimiting the hub of the turbine wheel (101) is machined. Application, in particular, to the field of aeronautical or space engineering.
Patent CA-2129917-C (CA)
Title: Distillation column utilizing structured packing having varying crimp angle
Inventor: MCKEIGUE KEVIN
IPC: B01D3/26
Filed: 1994-08-11
Granted: 1999-03-16
Abstract: A distillation  column for separating atmospheric gases in which structured packing having varying crimp angles is utilized within at least two sections or subsections of a single section of a distillation column. In the case of the use of structured packing in multiple sections, the crimp angle of the structured packing used in the first section is greater than that of the second section and is selected such that both sections operate at the same maximum design percentage of flooding limit.  The increased crimp angle of the first section decreases  the HETP of the packing and thereby allows a column design of reduced height.  Structured packing having different crimp angles can be used in a single section of a column when such section is subjected to possible variation of vapor rate. Here the crimp angles are again manipulated so that the subsections operate at the same maximum design  percentage  of flooding  limit.   The foregoing adaptation improves turndown performance.
Patent CA-2131670-C (CA)
Title: Electron beam lithography system
Inventor: PFEIFFER HANS C
IPC: H01L21/027
Filed: 1994-09-08
Granted: 1999-01-12
Abstract: An electron beam  system  for direct writing  applications combining the parallel throughput of a projection system and the stitching capability of a probe-forming system employs an electron gun to illuminate an initial aperture uniformly, a first set of controllable deflectors to scan the beam over the reticle parallel to the system axis, impressing the pattern of a subfield of the reticle in each exposure, in which a first variable axis lens focuses an image of the initial aperture on the  reticle,  a  second variable  axis  lens collimates the patterned beam, a second set of controllable deflectors to bring the beam back to an appropriate position above the wafer, and a third variable axis lens to focus an image of the reticle  subfield on  the wafer,  together with correction elements to apply aberration corrections that may vary with each subfield, thereby providing high throughput from the use of parallel processing of the order of 10 7 pixels per subfield with the low aberration feature of the variable axis lens and the ability to tailor location-dependent corrections that are associated with gaussian systems that stitch the image pixel by pixel.
Patent CA-2133049-C (CA)
Inventor: GEARIN PETER
IPC: B60P3/08
Filed: 1994-09-27
Granted: 1998-01-06
Abstract: A system for loading motor vehicles onto, and unloading motor vehicles from, a transporting vehicle enables motor vehicles to be supported one above the other on a frame, after which the frame with its supported motor vehicles is moved as a unit onto a transporting vehicle at a loading location.  After transport of the frame and its motor vehicles from the loading location to a destination, the motor vehicles are unloaded from the transporting vehicle not as a unit but rather individually while the frame remains on the transporting vehicle.
Patent CA-2133747-C (CA)
Title: Coil construction
Inventor: KROPIELNICKI JERZY JACEK
IPC: H01Q7/00
Filed: 1993-03-08
Granted: 2002-12-24
Abstract: A bifilar coil construction is used for isolating radio signals picked up by a motor vehicle window heating element from the power supply circuit for the heating element. The coil construction has two separate windings (9, 10) which are arranged bodily alongside each other. In one embodiment there is an inner cylindrical winding (9) within and in contact with an outer cylindrical winding (10), and a two part pot core (15, 16) is clamped within and around the windings (9, 10).
Patent CA-2134274-C (CA)
Inventor: ANDERSON ROBIN HENRY
IPC: B27B29/08
Filed: 1994-10-25
Granted: 2002-01-08
Abstract: An end dogging device for use in a sawmill having a saw cluster allows a plurality of flitches to be cut from a workpiece, such as a log or a cant, in a single pass through the saw cluster. The workpiece is clamped between a fixed end dog and a movable end dog both upstream and downstream of the saw cluster. Each end dog has two or more fingers which are held in spaced-apart relation on a pin joint. During the sawing operation, the saw passes between adjacent fingers. Accordingly, eachindividual flitch is supported by opposing pairs of fingers, one on each end dog, thereby preventing the flitches from twisting or otherwise falling relative to each other flitch and relative to the unsawn portion of the workpiece.
Patent CA-2135219-C (CA)
Inventor: OETIKER HANS
IPC: B65D63/02
Filed: 1994-11-07
Granted: 2006-05-30
Abstract: A so-called stepless clamp structure whose clamping band is provided at one end with a tongue-like extension and whose other end is provided with a slot-like opening. Outwardly extending hooks on the tongue-like extension are adapted to engage with the bent-up end section of the other end which is of such length that a small part of the slot-like opening is present in the bent-up end section whereby the depth of the small part of the slot-like opening is less than twice the thickness of the clamping band but slightly greater than the thickness of the clamping band.
Patent CA-2142013-C (CA)
Title: Active high transmission loss panel
Inventor: EATWELL GRAHAM
IPC: G10K11/16
Filed: 1992-09-15
Granted: 1998-09-29
Abstract: An active high transmission loss panel for quieting either one or two way sound radiation which incorporates a number of cells (11) which contain sensors and actuators (12) adapted to be controlled independently or interactively so as to attenuate noise attempting to pass through said panel.
Patent CA-2142019-C (CA)
Inventor: QUICK CHARLES E
IPC: C23C14/20
Filed: 1993-09-09
Granted: 2005-11-08
Abstract: A flexible multi-layered transfer film medium for computer-aided sign-making is provided in which the letter or graphic making medium is genuine gold film (700). The genuine gold film (700) is highly fade resistant in use due to its natural resistance to attack by ultra violet light. The genuine gold film (700) will not fade under normal exposure to UV light for long periods of time. The genuine gold film (700) is to be cut using a computer-aided sign making system.
Patent CA-2142283-C (CA)
Inventor: ZIMMERMANN DANIEL
IPC: D21F1/00
Filed: 1993-08-20
Granted: 2004-08-17
Abstract: A forming web for the sheet-forming part of a paper machine consists of a more than one-layered, in particular flat woven fabric made of plastic fibres with longitudinal threads which extend in the travelling direction and cross-threads which extend transversely thereto. One group of cross-threads lies in the plane of the paper side and floats there on longitudinal threads whose number is at least the same as the number of cross-threads on which the longitudinal threads float on the paper side. The plane of the machine side exclusively consists of a second group of cross-threads. In order to improve paper web formation and abrasive properties, the forming screen is characterized by the following features: (a) at least part of the cross-threads (4, 7, 8, 13, 17, 20, 21, 26, 30, 31) have a flattened cross-section; (b) the flattened cross-sections (4, 7, 8, 13, 17, 20, 21, 26, 30, 31) are arranged in such a way that their cross-section is larger in the plane of the fabric than across the plane of the fabric; (c) the ratio between the cross-section in the plane of the fabric and the cross-section across the plane of the fabric lies between 1.2 and 2.2. preferably between 1.2 and 1.8.
Patent CA-2143933-C (CA)
Title: Absorbent article with dynamic elastic leg feature comprising elasticized thigh panels
Inventor: CLEAR SANDRA HINTZ
IPC: A61F13/15
Filed: 1993-09-20
Granted: 1999-01-12
Abstract: Absorbent articles such as disposable diapers (20), incontinent briefs, diaper holders, training pants and the like, that have an elastic leg feature that provides dynamic fit around the leg of the wearer. Such absorbent articles comprise a liquid pervious topsheet (24); a liquid impervious backsheet (26); an absorbent core (28) disposed between the topsheet and the backsheet; and an elastic leg feature (32) comprising an elasticized leg cuff (150) and elasticized thigh panels (154). The elasticized leg cuff (150) is positioned in at least the center leg zone of the elastic leg feature (32), and comprises one or more elastic members (152) operatively associated in an elastically contractible condition so that the leg cuff (150) is elastically contractible in generally the longitudinal direction. The elasticized thigh panels (154) comprise a stretch laminate (156) that is mechanically streched so that the elasticized thigh panel (154) is capable of expanding beyond the original planar state of the absorbent article (20) in at least one direction at an angle from the longitudinal direction.
Patent CA-2149236-C (CA)
Inventor: NOGUCHI YOSHITAKA
IPC: D21C9/10
Filed: 1994-07-13
Granted: 2001-09-18
Abstract: L'invention concerne de nouvelles xylanases, un procédé d'obtention de l'enzyme, un micro-organisme capable de produire ladite enzyme, un procédé de traitement de pâte de cellulose avec l'enzyme xylanase, ainsi qu'un procédé de production de xylose ou de xylo-oligosaccharide au moyen de ladite enzyme.
Patent CA-2154062-C (CA)
Title: Spectrophotometric examination of tissue of small dimension
Inventor: CHANCE BRITTON
IPC: A61B5/00
Filed: 1994-01-19
Granted: 2005-04-05
Abstract: A system (10) for examination of a volume of biological tissue using visible or infra-red radiation includes a spectrophotometer (18), an optical medium (12) having selectable scattering and absorptive properties, and a processor (35) for determining a physiological property of the examined tissue. The spectrophotometer (18) includes a light source (21) for introducing radiation at an optical input port (19) and a detector (23) for detecting radiation that has migrated through a path from the input port ( 19) to an optical detection port (21). The biological tissue is positioned into a photon migration path inside the optical medium (12) to create a tissue medium optical path. The optical medium (12) is adapted to limit substantially escape of photons from the tissue.      The processor (35) determines tissue properties based on the detected optical property of the tissue-medium optical path and the selectable properties of the optical medium (12).
Patent CA-2159101-C (CA)
Inventor: BESTWICK RICHARD KEITH
IPC: C12N5/10
Filed: 1994-04-08
Granted: 2001-01-09
Abstract: The use of AdoMetase to reduce ethylene biosynthesis in plants is facilitated by the exploitation of the tissue and stage specific properties of the E8 promoter from tomato. Expression of AdoMetase is shown to be limited to the ripening tomato fruit The functional properties of several regions of the E8 promoter are described. The E8 promoter and variants described herein provide useful regulatable promoters for the expression of other genes as well as the AdoMetase gene.