baber/WOPTO huggingface dataset:
Patent CA-2201216-A1 (CA)
Title: Human lens epithelial cell line
Inventor: IBARAKI NOBUHIRO
IPC: A61P27/12
Filed: 1997-03-27
Abstract: A human lens epithelial cell line capable of expressing an exogeneous immortalizing gene, which is established without infecting with a live virus.  A method for producing the human lens epithelial cell line, which comprises transfecting human lens epithelial cells with an expression vector functionally carrying an exogeneous immortalizing gene, and subculturing said cells in a medium.  The above-mentioned human lens epithelial cell line wherein the cells proliferate in a temperature sensitive manner.  A method for producing a temperature sensitive human lens epithelial cell line, which comprises transfecting human lens epithelial cells with an expression vector functionally carrying an exogeneous immortalizing gene, and subculturing said cells in a medium.  Since the human lens epithelial cell line of the present invention is free of infection with a live virus, the cells are useful as biomaterials.  Moreover, since the temperature sensitive human lens epithelial cell line of the present invention stops proliferation at about 36°C or above, it may be used as a biomaterial for regenerating a human lens.
Patent CA-2204219-A1 (CA)
Title: Video transcoding with interim encoding format
Inventor: LIU CHRISTINA K
IPC: H04N7/15
Filed: 1997-05-01
Abstract: A method, apparatus, and storage medium for processing video data.  According to one embodiment, data encoded in a first high level encoding format is partially decoded. The partially decoded data is encoded in accordance with a second high level encoding format.
Patent CA-2204384-A1 (CA)
Title: Medicinal composition for diabetes
Inventor: JONES SHERMAN
IPC: A61K36/23
Filed: 1996-09-04
Abstract: The invention is a method and composition for treating diabetes using an extract derived from Heracleum lanatum and a species of Populus.
Patent CA-2205462-A1 (CA)
Inventor: WORTHAM LARRY C
IPC: G01S5/00
Filed: 1995-11-14
Abstract: A differential positioning system (10) includes components of a satellite-based or land-based positioning system (12) and components of a mobile communications network (14). The differential positioning system (10) provides accurate and immediate position information to a mobile unit (17). A  transmitter site (40) of a mobile communications network (14) is associated with a reference positioning receiver (38). The reference positioning receiver (38) generates correction data for transmission to the mobile unit (17). The mobile unit (17) includes a mobile communications device (42) for receiving the correction data generated by the reference positioning receiver (38) and a mobile positioning receiver (24) for generating a position fix. The mobile unit (17) refines the position fix generated by the mobile positioning receiver (24) using correction data received by the mobile communications device (42).
Patent CA-2210211-A1 (CA)
Title: Method of and apparatus for generating a pseudorandom noise sequence
Inventor: LING FUYUN
IPC: H03K3/84
Filed: 1997-07-11
Abstract: An augmenting circuit (153) augments an embedded PN sequence of 2N-1 chips generated by an N-bit LSSR (111) to provide an augmented PN sequence of 2N chips and an augmented PN sequence of 2N chips shifted by D chips. The augmenting circuit comprises a N-bit counter (123) that counts a plurality of clock bits. The N-bit counter provides a pre-carry signal that changes state when the counter's index equals a predetermined value and provides a value of the N-k most-significant-bits (MSB) of the index. A logic circuit (107,119) receives the plurality of clock bits and responds to the pre-carry signal to gate the plurality of clock bits. A comparator (135) receives the value of the N-k MSB and a threshold value to output a select signal that controls a multiplexer (139).
Patent CA-2211384-A1 (CA)
Title: Method and apparatus for high speed variable tier width lumber stacking
Inventor: DIMION GEORGE
IPC: B65G57/18
Filed: 1997-07-24
Abstract: A tier forming and handling device for forming and handling sequential tiers of lumber from a flow of elongate boards translated on a first conveyor in a first flow direction, wherein the boards are aligned along their length generally perpendicularly to the first flow direction, having a mat forming mechanism for collecting, by selectively actuable hook stops, the flow of elongate boards against the hook stops so as to form a mat of lumber having a downstream end adjacent the hook stops and an upstream end whereagainst the flow of elongate boards may continue to collect into abutting adjacent array; a mat separator for separating, along the first conveyor, at a selectively adjustable separation location, a tier of lumber from the downstream end of the mat of lumber; and, a variable speed tier accelerator for conveying and selectively variably accelerating the tier of lumber, once separated along the first conveyor, from the first conveyor to a hoist stacker, wherein the selectively adjustable separation location is selectively adjustable along the first conveyor so as to selectively adjust a first dimension of the tier parallel to the first direction.
Patent CA-2212546-A1 (CA)
Inventor: ZERFASS HEINZ
IPC: B24B9/04
Filed: 1997-09-19
Abstract: Grinding disk (1) with eroded (10) (roughened) forepart surface (2), driving pin (6), and with its border (3) turned down in shape of a cylinder jacket with edged slots (11+11A) incorporated all round it, and which consists in synthetic material.
Patent CA-2212633-A1 (CA)
Inventor: SIMON ROBERT
IPC: F41G1/32
Filed: 1997-08-05
Abstract: A high visibility gun sight system is described for detachable mounting on a gun barrel (e.g., a shotgun). The system includes a base member for detachably mounting to a gun barrel, and an elongated light-gathering plastic rod which is detachably mounted to the base member. Preferably the base member includes downwardly extending flanges for engaging the gun barrel. The flanges can include opposing fingers for self-aligning of the base member on the barrel. Magnets can be included in the base member for retaining the base member on the gun barrel.
Patent CA-2212810-A1 (CA)
Title: Propeller
Inventor: LIN YEUN-JUNN
IPC: F02B61/04
Filed: 1997-08-12
Abstract: A propeller is made up of a propelling unit having a plurality of blades, a driving unit for driving the propelling unit, and a plurality of deformable transmission units located between the propelling unit and the driving unit such that the transmission units are retained in the retaining slots of the propelling unit and the driving unit. The transmission units are tubular in shape and capable of deforming to absorb an impact force exerting on the transmission units in a direction perpendicular to the longitudinal axis of the transmission units, so as to safeguard the structural integrity of the propeller at such time when the propeller in motion is impacted on by a foreign object.
Patent CA-2213298-A1 (CA)
Title: Pressure sensitive adhesive comprising a block copolymer having low molecular weight endblocks and endblock-compatible tackifier or oil
Inventor: NESTEGARD MARK K
IPC: C08F297/04
Filed: 1996-01-16
Abstract: The present invention provides a block copolymer pressure sensitive adhesive (PSA) composition. The block copolymer has at least one midblock segment and at least one endblock segment. The midblock comprises a polymerized conjugated diene segment or hydrogenated derivative thereof. The endblock comprises a polymerized monovinyl aromatic segment having a number average molecular weight less than about 8,000. The PSA further comprises at least one tackifier or oil that is compatible with the low molecular weight endblock segment of the block copolymer. The PSA composition of the invention has a reduced elastic index and is capable of dissipating stress. This is useful in providing tapes which are capable of withstanding stresses such as those caused by temperature fluctuations, dimensional changes in the backing, or the recovery forces of a backing applied under tension. The present invention also provides a method of reducing the elastic index of a block copolymer PSA composition.
Patent CA-2218111-A1 (CA)
Inventor: MASLANKA FRANCIS C
IPC: C07K1/20
Filed: 1996-04-12
Abstract: Disclosed is an improved process for obtaining purified, monomeric, intact, correctly-folded insulin-like growth factor-I (also known as somatomedin-C). The improvements, consisting primarily of the addition of an IGF-I unfolding/refolding step and the substitution of a reverse phase chromatography step for a gel filtration chromatography step result in a three-fold increase in final yield. The process includes the following steps, in order: first cation exchange, unfolding/refolding, hydrophobic interaction chromatography, second cation exchange, and reverse phase chromatography.
Patent CA-2218432-A1 (CA)
Title: Module support structure
Inventor: MAZURA PAUL
IPC: H05K5/02
Filed: 1997-10-16
Abstract: A module support structure 1 is proposed for printed circuit boards 2 which can be inserted on guide rails 5. The four parallel module rails 4 of the module support structure 1 to which the guide rails 5 are mounted are connected to the two parallel side walls 3 via a special mounting technique. Specially shaped mounting bolts 8 are used consisting essentially of a bolt head 11 having a flat seating surface 13, a substantially cylindrical threaded shaft 12, as well as a transition piece 19 disposed between the bolt head 11 and the threaded shaft 12 and tapering in a conical manner towards the threaded shaft 12. The mounting bolts 8 are fed through cylindrical mounting holes 9 in the side walls 3 and screwed into cylindrical holes 10 in the module rails 4. During tightening, the transition piece 19 abuts against the outer edge of the mounting holes 9 to force the module rails 4 against the projections 17 disposed above or below the mounting holes 9. In this manner, an exact positioning of the module rails 4 relative to the side walls 3 is necessarily effected. The outer edge of each mounting hole 9 can be deformed by the transition piece 19 until the seating surface 13 of the corresponding bolt head 11 seats on the side wall 3.
Patent CA-2219425-A1 (CA)
Title: Floor protection and cleaning in male toilets
Inventor: MORTON ROBERT LUCAS
IPC: E03D13/00
Filed: 1996-04-26
Abstract: A washable floor for a urinal consists of a metal grid (10) through which fluid may pass downwardly and an inclined sub-floor (6) on which the fluid falls. A flushing system flushes the inclined sub-floor (6) towards the urinal. This greatly reduces odours.
Patent CA-2220125-A1 (CA)
Title: Improved directed energy surgical method and assembly
Inventor: BLANKENSHIP LARRY K
IPC: A61B18/20
Filed: 1996-05-09
Abstract: An improved directed energy surgical method and assembly is disclosed. The method and assembly contemplate the application of a directed energy stream to tissue and the application of a liquid mist stream to the tissue to reduce or eliminate smoke at the surgical site. The invention may be advantageously implemented in an assembly having a surgical pencil (10) for emitting the directed energy stream and liquid mist stream. The liquid mist stream is generated by the surgical pencil (10), preferably by atomizing a liquid stream supplied thereto (e.g., pressurized via jet atomization). The invention may be utilized in connection with conventional electrosurgical, laser surgery, ultrasound, and other techniques and devices.
Patent CA-2221511-A1 (CA)
Title: Vaccins comprenant un conjugue antigene de polysaccharide-proteine porteuse et une proteine porteuse libre
Inventor: HAUSER PIERRE
IPC: A61P31/00
Filed: 1996-06-04
Abstract: La présente invention décrit des vaccins combinés comportant un antigène conjugué de polysaccharide lié à une protéine porteuse, et dans lequel la protéine porteuse est également présente dans la composition du vaccin en tant qu'antigène libre. Cette composition du vaccin est caractérisée en ce que le rapport de la polysaccharide à la protéine varie de 1:0:3 à 1:2. En particulier, la composition du vaccin de la présente invention se rapporte à un vaccin multivalent, à savoir un vaccin destiné à l'amélioration ou au traitement de plus d'une pathologie. L'invention a également trait à la fabrication et à l'utilisation d'un tel vaccin en médecine.
Patent CA-2222199-A1 (CA)
Inventor: JEANNIN PHILIPPE
IPC: A01N43/56
Filed: 1997-03-26
Abstract: An external device such as a ring, particularly an earring, for controlling cattle parasites and horn fly (Haematobia irritans) in particular, consisting of a matrix that includes 0.1-40 wt.%, preferably 2.5-10 wt.%, based on the weight of the earring, of an active substance that is at least one compound of formula (I), is disclosed. Said external device is designed to be effective for over 30 weeks.
Patent CA-2222313-A1 (CA)
Title: Liquid crystal display employing dual negative retarders and a brightness enhancing film
Inventor: FISKE THOMAS G
IPC: F21V8/00
Filed: 1997-11-26
Abstract: A transmissive, backlit color twisted-nematic or super-twisted-nematic liquid crystal display employing a front fiber-optic faceplate or optical equivalent as a front retaining element of a liquid crystal cell that increases viewing angle between the display and a viewer while minimizing or eliminating undesirable variations in luminance, contrast ratio and chromaticity is described. The fiber-optic faceplate or optical equivalent includes cylindrical optical features and interstitial cladding material of greater optical index than the cylindrical optical features. The interstitial cladding material may include an opaque mask blocking layer to prevent the interstitial apertures from diffracting off-axis light into an observer's viewing cone. In particular the liquid crystal display includes dual negative retarders, and a light shaping element such as a brightness enhancing film on the illumination source that increase the effective viewing angle between the display and a viewer while minimizing undesirable variations in display chromaticity, luminance, and contrast ratio. The front fiber-optic faceplate or optical equivalent works in conjunction with the dual negative retarders and the light shaping element to provide an improved contrast ratio with a perfectly symmetric viewing angle and to eliminate grey scale inversions.
Patent CA-2229939-A1 (CA)
Title: Bonded composite knitted structural textiles
Inventor: STEVENSON PETER E
IPC: E02D29/02
Filed: 1996-08-21
Abstract: Bonded composite knitted structural textiles are formed of knitted polymeric fibers. The textile is formed from at least two, and preferably three or four, polymeric components. The first component, or load bearing member, is a high tenacity, high modulus, low elongation mono- or multifilament yarn. The second component is a fusible polymer in yarn or other form which will encapsulate and bond adjacent load bearing yarns. The third component is an optional effect or bulking yarn. The fourth component is a conventional multifilament warp knit stitch forming yarn to form the ground structure of the knitted textile. Knitted textiles of the present invention may be formed by any conventional knitting technique, i.e., weft insertion warp knitting, warp insertion weft knitting, and warp and weft insertion knitting. At least a portion of the laid-in warp and/or weft yarns are first component load bearing yarns. Specific and, if desired, periodically varying strength characteristics may be created in the finished product by varying the number, location and type of fiber component yarns. The second encapsulating and bonding polymer component is used as required to improve the structural integrity, initial modulus, stiffness and durability of the finished product. The effect or bulking yarns are used as laid-in warp and/or weft yarns as required to increase the bulk and cross-sectional profile of the finished product to improve its effectiveness in mechanically and frictionally resisting movement when embedded in construction fill materials.
Patent CA-2232843-A1 (CA)
Title: Plastic package, semiconductor device, and method of manufacturing plastic package
Inventor: HARUTA KOICHI
IPC: H01L23/10
Filed: 1998-03-23
Abstract: Disclosed is a plastic package for storing a chip, the plastic package being further improved in moisture resistance and reduced in manufacturing costs. The plastic package comprises a plastic package body for storing a chip and a lead electrically connected with the chip, wherein an oxide layer is formed on the surface of a part of the intermediate portion of the lead, the part of the intermediate portion being allowed to adhere to a plastic.
Patent CA-2234418-A1 (CA)
Title: Human afc1
Inventor: SOUTHAN CHRISTOPHER D
IPC: A61P25/28
Filed: 1998-06-09
Abstract: The hAFC1 polypeptides and polynucleotides and methods for producing such polypeptides by recombinant techniques are disclosed. Also disclosed are methods for utilizing hAFC1 polypeptides and polynucleotides in therapy and diagnostic assays for such.
Patent CA-2237722-A1 (CA)
Inventor: OHNO TAKAHIRO
IPC: A01G31/00
Filed: 1997-09-26
Abstract: A process for producing potato tubers by water culture by which potato tubers free from lenticel thickening can be produced. This process is characterized by setting a partition through which the roots of potatoes can pass but the stolons thereof cannot pass over the level of a nutritive solution, and making the stolons grow on the upper surface of the partition with at least part of the roots immersed in the nutritive solution through the partition to thus produce potato tubers.
Patent CA-2238933-A1 (CA)
Inventor: LOEFFLER FREDERICK L
IPC: B60G7/00
Filed: 1996-02-16
Abstract: A ball joint assembly (52) for connecting a tie rod (24) to a rack and pinion steering assembly (10) includes first and second housing members selectively mated to define a cavity (75) that receives the ball (54) of the tie rod and a bearing (76). The first housing member (72) includes a threaded portion matingly engaging a threaded portion disposed on the second housing member (74).
Patent CA-2239833-A1 (CA)
Title: Holographic optical device and method of manufacture
Inventor: STRACHAN JOHN SCOTT
IPC: G02B5/18
Filed: 1996-12-02
Abstract: The invention provides an optical element comprising a first hologram (1) and a second hologram (2) separated by an intervening medium (30). The holograms (1, 2) have the same diffraction spacing and refractive index, but the first hologram (1) has an efficiency about one-half that of the second hologram (2), preferably about 50 % and >95 %, respectively. The geometry and the refractive index of the intervening medium (3) are such that an input beam (B) of mixed light undergoes diffraction and refraction to produce output beams (p1, p2) which combine in a controllably self-cancelling manner. Methods for the production of this element are also described.
Patent CA-2241377-A1 (CA)
Inventor: VANNUCCI GIOVANNI
IPC: H04W64/00
Filed: 1998-06-22
Abstract: Systèmes et appareil pour estimer la localisation mobile au sein d'un système de communication sans fil doté de plusieurs stations de base. Dans une représentation base vers mobile, les stations de base du système transmettent régulièrement des signaux de localisation vers des stations mobiles lors d'intervalles par à-coups au cours desquels les communications sans fil normales sont suspendues. L'intervalle est suffisamment court pour que l'interruption des opérations normales soit négligeable. Chaque station de base transmet un signal de localisation distinct qui peut être identifié par une station mobile associée à une station de base spécifique. Une station mobile spécifique pour laquelle une estimation de localisation doit être générée détecte des signaux de localisation en provenance d'au moins trois stations de base du système. Les signaux de localisation détectés sont utilisés pour générer des mesures de retard de la voie différentielle qui sont susceptibles d'être traitées conformément à une technique de triangulation afin de générer une estimation de la localisation mobile. L'interruption des communications sans fil normales permet aux signaux de localisation d'occuper une bande passante large correspondant à des canaux multiples de données de communication, de manière à générer des mesures de retard de voie différentielles haute résolution. Les signaux de localisation en provenance de stations de bases adjacentes ou avoisinantes peuvent également être configurés pour être diffusés de manière orthogonale vers des stations mobiles réceptrices, de manière à ce que les signaux de localisation en provenance de stations de base proches d'une station mobile n'interfèrent pas avec la détection d'un signal de localisation en provenance d'une station de base plus éloignée. Par exemple, les signaux de localisation peuvent être sélectionnés pour présenter des formes d'onde diffusant des spectres de fréquence en forme de crête qui ne se chevauchent pas. L'invention peut également être installée au sein de systèmes partiels de découpage et de systèmes mobiles vers base.
Patent CA-2242221-A1 (CA)
Inventor: SULLIVAN ED
IPC: F02M65/00
Filed: 1998-06-30
Abstract: A kit assembles to provide a system for cleaning fuel injectors in an automotive engine. The kit comprises a canister with injector cleaner contained under pressure within the canister; a valve having an inlet end which connects with and releases the injector cleaner from the canister and an outlet end which receives a pressure gauge measuring the pressure of the injector cleaner from the canister. A flexible hose has a first end which connects with the outlet end of the valve and a second end which connects with a valve in the engine to feed the cleaner to the injectors to be cleaned by the system. The valve has a control for adjusting the pressure of the system according to vehicle specifications.
Patent CA-2242693-A1 (CA)
Inventor: ANTIGNANI ANTOINETTE F
IPC: G01N33/86
Filed: 1998-07-09
Abstract: An additive formulation comprising heparinase and trehalose, a method for using the formulation and a device containing the formulation. The additive formulation is useful in substantially neutralizing residual heparin from a blood sample when used in a blood collection tube without interfering with the clinical analysis of the blood sample.
Patent CA-2243162-A1 (CA)
Title: Multi-level, multi-frequency interference pattern analog waveform encoding of digital data for transmission
Inventor: GANTER WILLIAM A
IPC: H04M3/00
Filed: 1997-01-10
Abstract: Digital data is encoded into a series of analog waveforms, called symbol waveforms, created as the result of interference of sinusoidal wave interference patterns. Each of these waveforms is an encoded version of N-bits of data (block 210). These encoded symbol waveforms are an encoded version which is very different, in both appearance and in propagation properties, from traditional voltage state signaling or pulse codes. The encoded symbol waveforms are formed by generating (blocks 230 and 240) and superimposing (blocks 270A and 270B) a set of analog sinusoidal waves, where the gain (blocks 260A and 260B) and phase shift (blocks 250A and 250B) of each wave is computed so as to provide, in combination, a unique interference pattern that can be recognized, via signal processing techniques, by a detector and then decoded. The symbol waveforms are computed so that successive symbol waveforms seam together to form a smooth continuous AC analog signal that does not itself generate interference frequencies, can be bandpass filtered, and is suitable for long distance propagation. The transmission technology of the present invention is applicable to, inter alias, a digital communication device or system.