baber/WOPTO huggingface dataset:
Patent CA-2257418-A1 (CA)
Title: Ester synthesis
Inventor: BECKER STANLEY JOHN
IPC: C07C67/04
Filed: 1998-12-22
Abstract: This invention relates to a process for the production of lower aliphatic esters by reacting a lower olefin with a saturated lower aliphatic mono--carboxylic acid in the vapour phase in the presence of a heteropolyacid catalyst in a plurality of reactors set up in series such that the reactant gases exiting from a first reactor are fed as the feed gas to a second reactor and those exiting from the second reactor are fed as the feed gas to a third reactor and so on for the subsequent reactors. An aliquot of the reactant monocarboxylic acid is introduced into the feed gas to the second and subsequent reactors so as to maintain the olefin to monocarboxylic acid ratio in the feed gas to each of the second and subsequent reactors within a pre-determined range.
Patent CA-2259056-A1 (CA)
Title: Manual trash compactor
Inventor: FISCHER EDMUND
IPC: B65F1/14
Filed: 1999-01-14
Abstract: A manual trash compactor is provided including a box having an open top. A  hand operated compactor assembly includes a compactor with a member integrally coupled thereto and extending upwardly therefrom for gripping by a user, whereby the compactor may be manually depressed within the box for allowing the compacting of trash therein.
Patent CA-2259726-A1 (CA)
Inventor: MILLER JOHN
IPC: G02B26/08
Filed: 1999-01-20
Abstract: A photonic switching device has a first set of optical waveguides, a second set of optical waveguides, and an arrangement of controllable deformable micromirrors for selectively completing an optical path between any one of the first set of waveguides and any one of the second set of waveguides. Typically, the deformable mirrors are arranged in a pair of opposed grid arrays with the input and output waveguides extending along respective rows and columns in the manner of a crosspoint switch, but with the rows and columns intersecting at an oblique angle.
Patent CA-2264331-A1 (CA)
Title: Disposable diaper having mechanical fastener
Inventor: MINATO HIRONAO
IPC: A61F13/49
Filed: 1999-03-02
Abstract: A disposable diaper according to the present invention includes mechanical tape fasteners, and the tape fasteners 18 extend outwards from transversely opposite side edges 15 of a disposable diaper 1 and are provided on their front surfaces with hook members 22. Each of the hook members 22 have their front surfaces partially coated with adhesive 25 by means of which the hook members 22 are peelably bonded to release zones formed of material such as a plastic sheet in the proximity of the side edges 15 of the diaper.
Patent CA-2267064-A1 (CA)
Title: Contact lenses bearing identifying marks
Inventor: POLING TIMOTHY R
IPC: G02C7/02
Filed: 1999-03-29
Abstract: This invention provides a contact lens comprising a front surface, a back surface and an identifying mark on at least one of said front surface and said back surface, wherein said identifying mark comprises a depressed region having a cross- section which comprises at least two intersecting concave surfaces at the bottom of said depressed region.
Patent CA-2267308-A1 (CA)
Title: Combination dissector and expander
Inventor: YOUNG RODERICK A
IPC: A61M29/02
Filed: 1997-06-30
Abstract: A combination tissue dissector and long term expander is disclosed for use in plastic surgery applications and other applications where it is desirable to dissect a tissue pocket, and serially expand the dissected pocket through long term tissue expansion. The combination device performs the separate functions of dissection, and long term expansion in a single balloon package. In an exemplary embodiment, three sheets of substantially inelastic material (45, 47, 48) are bonded together at their outer margins to form two discrete inflatable chambers (49, 51). The lower inflatable chamber (49) defined by the middle and lower balloon sheets (45, 47) is further welded together at various points (50) over the sheet's surface area to create a semi-rigid base portion (44) which provides a flat well-defined footprint for the balloon. The semi-rigid base portion (44) prevents further enlargement of the tissue pocket at the margins when the device (32) is utilized as a tissue expander. In a preferred method of use for the combination device, the combination device is tunneled bluntly to a desired location within the body. The device (32) is then inflated to dissect tissue layers along natural tissue planes and create a tissue pocket. After dissection, the combination device may be left within the body as a temporary implant to further expand the tissue pocket through long term expansion until the desired tissue pocket volume is achieved.
Patent CA-2267335-A1 (CA)
Title: Position determination using two low-earth orbit satellites
Inventor: LEVANON NADAV
IPC: H04W64/00
Filed: 1997-09-26
Abstract: A system and method for passively determining the position of a user terminal (for example, a mobile wireless telephone) in a low-Earth orbit satellite communications system (100). The system includes a user terminal (106A, 106B, 106C), at least two satellites (104A, 104B) with known positions and known velocities, and a gateway (102) (that is, a terrestrial base station) for communicating with the user terminal (106A, 106B, 106C) through the satellites (104A, 104B). The method includes the steps of determining a range difference parameter (804) and a range-rate difference parameter (806). A range difference parameter represents the difference between (1) the distance between a first one of the satellites (104A, 104B) and the user terminal (106A, 106B, 106C) and (2) the distance between a second one of the satellites (104A, 104B) and the user terminal (106A, 106B, 106C). A range-rate difference parameter represents the difference between (a) a relative radial velocity between a first one of the satellites (104A, 104B) and the user terminal (106A, 106B, 106C) and (b) a relative radial velocity between a second one of the satellites (104A, 104B) and the user terminal (106A, 106B, 106C). The position of the user terminal (106A, 106B, 106C) on the Earth's surface is then determined (810) based on the known positions and known velocities of the satellites, the range difference parameter, and the range-rate difference parameter.
Patent CA-2275151-A1 (CA)
Inventor: TSYGLIAN VLADIMIR
IPC: A23L33/15
Filed: 1999-05-17
Abstract: This invention, Vitamin C Drinking Water, comprises, as its essential ingredients, digestible vitamin C and drinking water as and contains 50-1500mg/l vitamin C (ascorbic acid).
Patent CA-2277478-A1 (CA)
Title: Filter media
Inventor: BATTYE ANTHONY GEORGE
IPC: B01J20/18
Filed: 1998-01-09
Abstract: An adsorbent media, particularly of a type formed from a sheet-form carrier substrate, incorporating particulate adsorbents therein for use filtration of fluids, i.e., by gas/solid liquid/solid interactions wherein the contaminant atom, ion, or molecule of gas or liquid adheres or is otherwise retained by the solid adsorbent particle thereby removing it as a contaminant from the filtered fluid is provided by forming a fluid-permeable carrier substrate containing fibres capable of withstanding prolonged contact with a fluid to be filtered, treating the carrier substrate to introduce fixing agents including a binder and a film-former, and particulate adsorbent material(s) to the carrier substrate, wherein the amount of fixing agents, particularly of film former is just sufficient to retain the adsorbent material(s) in the carrier substrate whereby shedding of the adsorbent therefrom is substantially avoided.
Patent CA-2278451-A1 (CA)
Inventor: SHERWOOD NANCY G M
IPC: C12N1/21
Filed: 1998-01-23
Abstract: The nucleotide sequence of a gene encoding two chicken neuropeptides is disclosed, together with the amino acid sequences of these neuropeptides. The neuropeptides are useful to modify the body composition of poultry.
Patent CA-2281597-A1 (CA)
Inventor: FRANKFURT CHRIS
IPC: A61Q1/10
Filed: 1998-12-23
Abstract: The invention concerns a film-forming cosmetic composition containing, in an appropriate cosmetic vehicle, a film-forming substance derived from cellulose and, as thickening agent, an efficient amount of alkaline metal tetraborate. The invention is used for making nail varnish, for nail make-up and/or nail care, or for making products for make-up and/or care of eyelashes, eyebrows or hair.
Patent CA-2282930-A1 (CA)
Inventor: BRESLIN JEROME
IPC: H04M3/493
Filed: 1999-09-21
Abstract: A call is answered by an automated call answering system.      The system generates an intelligent beep (I-Beep), which is a distinct human and machine recognizable tone indicating intelligent call handling capability. If the caller is human, the I-Beep is a signal that the caller may enter commands to request that the intelligent system perform advanced operations beyond simply recording a message. If the caller is employing an intelligent system, the I-Beep is a signal to the calling system that it may respond with an indication that an intelligent device is listening in. The two systems may then engage in some form of data exchange. The I-Beep protocol may be used between the two systems to exchange data such as personal information, photos, web home page addresses, etc.     When a call is placed by an intelligent call handling system, the system generates an I-Beep to determine whether the called system has intelligent call handling capability. An affirmative response from the called system may initiate an exchange of data between the two systems.
Patent CA-2283049-A1 (CA)
Title: Polysaccharide aldehydes and acetals as permanent press agents for textiles
Inventor: HAZELWOOD MICHAEL C
IPC: D06M13/137
Filed: 1999-09-23
Abstract: A method for imparting permanent press properties to a textile containing cellulose fibers. The method involves applying an aqueous solution of a polysaccharide aldehyde and/or acetal at a pH of 1 to 8 to a textile, and heating the textile at a sufficient temperature for a sufficient time to react the polysaccharide aldehyde and/or acetal with the textile wherein water is removed from the textile, to impart permanent press properties to the textile. The method of the present invention provides permanent press properties to textiles treated therewith and increases the resistance of such textiles to future laundering abrasion. Such treated textiles display a significant reduction in wrinkles compared with nontreated textiles. Moreover, the treated textiles have a tactile sensation of feeling soft and retain their smoothness after laundering.
Patent CA-2283141-A1 (CA)
Title: Methods of use of gemifloxacin compounds against fluoroquinolone resistant streptococcus pneumoniae bacteria
Inventor: LOW DONALD E
IPC: A61K31/47
Filed: 1999-09-23
Abstract: This invention relates, in part, to newly identified methods of using quinolone antibiotics, particularly a gemifloxacin compound against certain pathogenic bacteria.
Patent CA-2283643-A1 (CA)
Title: Certain cyclic thio substituted acylaminoacid amide derivatives
Inventor: FINK CYNTHIA ANNE
IPC: C07D333/24
Filed: 1998-03-18
Abstract: Disclosed are compounds of formula (I), wherein R, R1, R2, R3, R4, A and n are as defined; pharmaceutically acceptable salts thereof; disulfides corresponding to said compounds of formula (I) wherein R4 is hydrogen; methods for preparation thereof; pharmaceutical compositions comprising said compounds; and a method of inhibiting TNF-alpha and matrix-degrading metalloproteinase activity and of treating TNF-alpha and matrix metalloproteinase dependent diseases or conditions, e.g. inflammatory conditions, osteoarthritis, rheumatoid arthritis and tumours, in mammals using such compounds.
Patent CA-2284150-A1 (CA)
Title: Sheathed probes for tissue type recognition
Inventor: WUNDERMAN IRWIN
IPC: A61B1/00
Filed: 1998-03-17
Abstract: The invention incorporates electrodes (3) in the tip of the sheath cover (1) for a diagnostic probe that makes both electric and optical measurements of tissue contacted by the sheath. The electrodes are positioned relative to the optical window (2) in such a way as to ensure that sealing is not compromised by the presence of the electrodes. The electrodes are close by to ensure that both the optical and electrical measurements are made on the same area of tissue. The invention uses the hoop tension in the sheath to apply the needed spring force to the electrode contact. In addition the invention provides a piece of turbid material such as a polymer of controlled composition as a built-in calibrator attached to the outside of the tip of the sheath.
Patent CA-2284243-A1 (CA)
Title: Optical processing device operating in a wavelength-synchronized mode and an optical circuit exchanger that uses such an optical processing device
Inventor: NOBUHARA HIROYUKI
IPC: H04B10/50
Filed: 1992-01-09
Abstract: An optical processing device for converting a wavelength of an optical signal comprises an optical processing unit supplied with an input optical beam carrying thereon one or more optical signals with respective wavelengths that are different from each other, the optical processing means being further supplied with a control optical beam having a stabilized reference wavelength and selecting the optical signal that has a first wavelength and outputting the same with a second wavelength that is specified by the reference wavelength; and a control unit for controlling the optical processing unit by specifying the first wavelength of the optical beam to be selected.
Patent CA-2286718-A1 (CA)
Inventor: PEYMAN GHOLAM A
IPC: A61F9/01
Filed: 1998-03-11
Abstract: This invention is a universally sized blank (18) made of organic or synthetic material that can be placed on an exposed inner surface of a live cornea and ablated with a laser beam (27) to be altered to a particular shape. A flap-like portion of the live cornea is removed to expose an inner surface of the cornea, and the blank (18) is positioned on the exposed inner surface of the eye.  A laser beam (27) is directed onto certain portions of the blank (18) that are selected based on the type of ametropic condition (i.e., myopia, hyperopia or astigmatism) of the eye needing correction, so that the laser beam (27) ablates those portions, and thus reshapes the blank. The laser beam (27) can also be directed onto certain portions of the laser surface of the cornea to ablate those surfaces of the cornea. The flap-like portion of the cornea is repositioned over the remaining portion of the blank (18), so that the remaining portion of the blank (18) influences the shape of the reattached flap-like portion of the cornea and thus modifies the curvature of the cornea.
Patent CA-2289539-A1 (CA)
Title: Low toxicity corrosion inhibitor
Inventor: PRINCE PHILIPPE
IPC: C07D233/42
Filed: 1998-05-06
Abstract: A water soluble corrosion inhibitor containing a compound having at least one five-membered heterocyclic ring having at least one thione group and at least one other pendant group is described. Such a corrosion inhibiting compound can be made by reacting together a thiourea and a polyalkylene polyamine. A specific example includes preparing 1-(2-aminoethyl)-2-imidazolidinethione by reacting thiourea, per se, and diethylenetriamine. These corrosion inhibition compounds have greatly reduced aquatic toxicity, and may be employed as corrosion inhibitors in hydrocarbon streams.
Patent CA-2291225-A1 (CA)
Title: An elastomeric composite structure
Inventor: HALL ROBERT EDWARD
IPC: B29C70/20
Filed: 1998-04-17
Abstract: An elastomeric composite structure (45) having two arrays of parallel cords (41, 43), each array of cords (41, 43) being of different modulus or percent elongation. The array of cords (41,43) are spaced and provide different bending stiffness dependent on the direction of the applied load.
Patent CA-2291309-A1 (CA)
Title: Drive system for clothes washer
Inventor: KROPF KEITH E
IPC: D06F17/06
Filed: 1999-11-30
Abstract: A washing machine includes a cabinet with an opening. A wash basket is mounted within the cabinet for rotation about a wash basket axis, and includes an access opening through which clothes may be loaded and unloaded. At least one agitator is mounted within the basket for rotation about an agitator axis which is at an angle different from the angle of the wash basket axis. A drive mechanism bathed by washing fluid interconnects a drive motor, the wash basket, and the agitator for rotating the agitator about its rotational axis.
Patent CA-2293389-A1 (CA)
Title: Uncomplexed cyclodextrin compositions for odor and wrinkle control
Inventor: CHUNG ALEX HAEJOON
IPC: A61K8/33
Filed: 1998-06-09
Abstract: The present invention relates to a stable, aqueous odor-absorbing and wrinkle controlling composition, preferably for use on inanimate surfaces, especially fabrics. The composition comprises from about 0.1 % to about 20 % by weight of the composition, of solubilized, water-soluble, uncomplexed cyclodextrin and an effective amount of at least one ingredient to improve the performance of the composition selected from the group consisting of: (1) cyclodextrin compatible surfactant; (2) cyclodextrin compatible antimicrobial active; and (3) mixtures thereof. The composition also comprises a wrinkle control agent which is fabric lubricant, shape retention polymer, hydrophilic plasticizer, lithium salt, or mixtures thereof. Hydrophilic perfume improves acceptance. Optionally, the composition can contain low molecular weight polyols; metallic salts to help control odor; a humectant, etc. The composition is essentially free of any material that would soil or stain fabric. The composition is preferably applied as small particle size droplets, especially from spray containers. The cyclodextrin/surfactant combination, either alone or in combination with the other ingredients, provides improved antimicrobial activity.
Patent CA-2295183-A1 (CA)
Title: Systeme pour visualiser un environnement
Inventor: VAN SOELEN ANNE-MARIE HENRIETT
IPC: H04N7/18
Filed: 1998-06-17
Abstract: L'invention concerne un système intégrant plusieurs caméras de télévision pour produire une image panoramique de la zone environnant un bateau. Au moyen de visualisation de casques, l'image obtenue crée un environnement de réalité virtuelle. L'image est, en outre, utilisée pour la détection et la poursuite de cibles ponctuelles.
Patent CA-2295246-A1 (CA)
Inventor: LEHNER BERNHARD HELMUT
IPC: E01H1/00
Filed: 2000-01-11
Abstract: An arrangement for dispensing and sprinkling binding agents onto a surface, for example for sprinkling a road soiled by oil with an oil-binding agent, has a distributing device located behind the outlet opening of a supply container. The distributing device uniformly ejects (or sprinkles) binding agent onto the areas of the road intended to be covered by the agent.   The distributing device preferably has adjustable sprinkling ranges and is designed in the form of a revolving sprinkling plate.
Patent CA-2295284-A1 (CA)
Title: A control system for automatically controlling a work implement of an earthmoving machine to capture, lift and dump material
Inventor: PALMER MARVIN K
IPC: G01G19/08
Filed: 2000-01-12
Abstract: A control system for automatically controlling a work implement of an earthmoving machine, the work implement including a bucket, to capture, lift and dump material, the bucket being controllably actuated by a hydraulic tilt cylinder and lift cylinder. The control system includes a weight sensing mechanism for sensing weight of the material in the bucket and a logic mechanism for receiving the weight signals for the material in the bucket from the weight sensing mechanism and then determining a total summed weight of the material for a total number of capture, lift, and dump cycles needed to capture, lift and dump a predetermined weight of the material with the bucket and then generating various command signals based on the weight signal from each capture, lift and dump cycle and the total summed weight for the total number of capture, lift and dump cycles. In addition, there is a hydraulic implement controller for controlling hydraulic fluid flow to the hydraulic tilt cylinder and the hydraulic lift cylinder in response to the command signals thereby controllably actuating the bucket of the earthmoving machine in order to capture, lift and dump material.
Patent CA-2295694-A1 (CA)
Title: Method of making articles in sheet form, particularly abrasive articles
Inventor: KRECH JOHN E
IPC: B24D11/00
Filed: 1997-11-12
Abstract: The present invention provides a method of making sheet articles, for example, abrasive articles, retroreflective articles (such as traffic signs), pavement marking articles, or traction or non-skid articles. The method includes passing particles through a thermal sprayer to heat the particles and impinging the heated parti cles into a polymeric sheet so that the particles are at least partially embedded in the polymeric sheet. Preferably, the polymeric sheet is heated before impingement of the heated particles. One preferred method of softening the sheet is by a thermal sprayer that is used to heat the particles. A preferred thermal sprayer is a flame sprayer having a nozzle for emitting a flame, where the nozzle has a cross-web width and a downweb thickness, the width being substantially greater than the thickness.
Patent CA-2301657-A1 (CA)
Title: A panel-shaped, hybrid photovoltaic/thermal device
Inventor: VAN STEENHOVEN ANTONIUS ADRIAN
IPC: F24S23/30
Filed: 1998-08-25
Abstract: A panel-shaped hybrid photovoltaic/thermal device (1) comprising metal absorption means (6) for converting solar energy into thermal energy, and laminated, panel-shaped photovoltaic means (2) comprising photovoltaic cells (3) of a crystalline silicon for converting solar energy into electric energy.  The photovoltaic means (2) and the absorption means (6) have been joined to form a single assembly with the interposition of a metal-containing plastic material (10) having bonding properties. The device (1) is constructionally simple and suited for optimizing the electric and thermal efficiency.
Patent CA-2305307-A1 (CA)
Title: Tricyclic triazolobenzazepine derivatives, process for producing the same, and antiallergic agents
Inventor: SHIOKAWA SOHJIRO
IPC: C07C69/738
Filed: 1998-09-29
Abstract: Tricyclic triazolobenzazepine derivatives in the form of a prodrug. The compounds are ones represented by general formula (I) and pharmacologically acceptable salts and solvates thereof. They are useful as an antiallergic and have excellent bioavailability. In formula (I), R1 represents hydrogen, OH, alkyl, or phenylalkyl; R2, R3, R4, and R5 each represents hydrogen, halogeno, optionally protected hydroxyl, formyl, optionally substituted alkyl, alkenyl, alkoxy, etc.; and Q represents a group selected among groups (i) to (iv), halogeno, or alkoxy.
Patent CA-2306272-A1 (CA)
Inventor: GREGORY JAMES L
IPC: B65D55/02
Filed: 2000-04-19
Abstract: A tamper-indicating closure of integrally molded plastic construction that includes a base wall having a peripheral skirt with an internal thread for engaging an external thread on a container finish. A tamper-indicating band is connected to the edge of the skirt by a plurality of circumferentially spaced integral frangible bridges. A stop flange extends axially outwardly and radially inwardly from an edge of the band remote from the skirt for inversion and engagement with a bead on the container finish. The stop flange is in the form of a circumferentially continuous base of uniform thickness circumferentially of the band, and either uniform or increasing thickness radially and axially of the band. A plurality of circumferentially spaced lugs are integral with and extend from the base. The lugs widen uniformly from zero thickness at the band to a maximum thickness at the free edge of the flange. The lugs are thus disposed for opposed abutting engagement with the A1 diameter of the container finish beneath the A bead on the container finish. The channels or serrations between the lugs permit drainage of liquid from the area between the skirt and the container finish.