baber/WOPTO huggingface dataset:
Patent CA-2298122-A1 (CA)
Title: Water and wastewater treatment system and process for contaminant removal
Inventor: STEPHENSON ROBERT JOHN
IPC: C02F9/14
Filed: 2000-02-08
Abstract: A system and process for removing contaminants from water and wastewater, where the water or wastewater is transformed into purified water that can be discharged to the environment. Wastewater is transported through several stations for purification, including an electrochemical cell. The purification process begins by sending the wastewater to a classifier through an in-line basket strainer. The wastewater stream in the classifier is drawn through a solid-liquid hydrocyclone, which returns the solids to the classifier and sends the remaining liquid to feed tanks. Contaminants that float are removed from the wastewater by skimming from the surface of the feed tank. The wastewater underflow from the feed tanks is pumped directly to the electrochemical cell where it enters into the bottom of the cell, and exits from the top of the cell. The discharge, including coagulated solids, hydrogen gas, and oxygen gas, is mixed with a polymer as well as compressed air just prior to entering a static in-line mixer. The resulting mixture flows past a vertical vent pipe to a flotation cell. The underflow of the flotation cell, which is substantially free of coagulated solids, flows by gravity to a settling tank where any remaining solids sink to the bottom. The solid-free liquid (water) exits the settling tank over an overflow weir and is pumped through a plurality of bag filters and finally through a polymeric filter to remove remaining contaminants.
Patent CA-2301664-A1 (CA)
Title: Electronic message management system
Inventor: WEBER DOUGLAS C
IPC: G06Q10/10
Filed: 1998-07-21
Abstract: An electronic message, or e-mail, management system having a digital computer for accepting e-mail messages; a program interface for automatically transferring received electronic messages to a database; a structured database for storing the received electronic messages in a predetermined format; and an interface for allowing a customer service representative, at a remote computer, to access, and respond to, the electronic messages stored at the database.
Patent CA-2301772-A1 (CA)
Title: Sealing ring
Inventor: TCHILINGURIAN BORIS
IPC: F16J15/32
Filed: 2000-03-21
Abstract: A sealing ring is provided having a gasket made from a polymeric material, said gasket having a mounting portion and a sealing portion, said mounting portion being connected with a support ring and said sealing portion being bent towards a space to be sealed in an installed condition, said sealing portion for sealingly surrounding a circumferential side of a shaft to be sealed with a radial preload, and wherein said sealing portion includes a first surface profiling on a side facing the shaft, said first surface profiling includes at least one backflow conveying member and being disposed on a side facing the space to be sealed, and wherein at least one dust lip is disposed on a side of the reconveying member facing away from the space to be sealed; and a continuous annular sealing flange for sealingly surrounding the circumference of the shaft, said sealing flange being disposed between the conveying member and the dust lip.
Patent CA-2302166-A1 (CA)
Inventor: SHANN PETER
IPC: F42D1/055
Filed: 1999-07-07
Abstract: A control system for controlling the initia-tion of detonation of a series of explosive charges (13) spaced apart from each other in boreholes (12) formed in a rock medium (10) to be blasted, said system being operative to apply controlled time difference in the time interval between suc-cessive detonations of at least one phase of the se-ries of charges, and which includes at least three successive detonations, so as to reduce the proba-bility of consecutive stimulation and amplification of ground vibration by reason of the detonation of the charges in the rock medium.
Patent CA-2303031-A1 (CA)
Title: Bobine supraconductrice limitant le courant de defaut
Inventor: KALSI SWARN S
IPC: H02H9/02
Filed: 1998-09-03
Abstract: L'invention concerne une bobine supraconductrice (10) comportant un premier supraconducteur (18) constitué par une matériau supraconducteur anisotrope permettant de conférer une caractéristique de champ magnétique à faibles pertes aux champs magnétiques parallèles à l'axe longitudinal de la bobine (10) et un second supraconducteur (22) présentant une caractéristique de champ magnétique à faibles pertes aux champs magnétiques perpendiculaires à l'axe longitudinal de la bobine (10). Le premier supraconducteur (18) présente une caractéristique de résistivité d'état normal propre à favoriser la limitation de courant dans le cas où la bobine magnétique supraconductrice (10) subit un défaut du courant.
Patent CA-2304083-A1 (CA)
Title: Method for measuring the distance to at least one target
Inventor: RAMSEIER ERNST
IPC: G01S17/10
Filed: 2000-04-05
Abstract: To measure the distance to targets, local maxima exceeding a threshold (.epsilon.) and being associated with a correlation function (f) are determined, the reference values of which are obtained from scaler products of a received signal (e), produced by reflections of an optical pulse by the targets, and a number of comparison functions, copies of a reference function (r) which are shifted as a function of time, and the transit times of the reflections are derived from the time-related shifts of the corresponding comparison functions. By interpolation with respect to the time-related shifts or optimization thereof, for example by adjusting them so that the orthogonal distance of the received signal (e) from the vector space which is spanned by the corresponding comparison functions is a minimum, the transit times can be determined even more accurately.
Patent CA-2304662-A1 (CA)
Title: Methods for fabricating polymer-based controlled release preparations
Inventor: HERBERT PAUL F
IPC: A61K39/00
Filed: 1998-09-21
Abstract: The present invention relates to a polymer-based sustained release device, and methods of forming and using the device for the sustained release of an active agent. The improved method of the invention for forming a polymer-based sustained release device comprises forming a polymer/active agent solution by mixing a polymer, a continuous phase, and an active agent. The continuous phase can comprise one or more polymer solvents, a polymer solvent/polymer non-solvent mixture, or a polymer solvent/active agent non-solvent mixture.  When the continuous phase comprises a polymer solvent/active agent non-solvent, the active agent can also be present as a microparticulate rather than in solution. The continuous phase is then removed from the polymer/active agent solution, thereby forming a solid polymer/active agent matrix.
Patent CA-2306142-A1 (CA)
Title: Anti-theft brake or clutch locking device
Inventor: VITO ROBERT A
IPC: B60R25/00
Filed: 1998-06-17
Abstract: A device (10) for locking the brake or clutch of a vehicle and preventing its theft comprising: a base member (12) for a placement on the floorboard (35) of a vehicle beneath a brake petal (13); a U-shaped housing (14) extending downward and having a first arm (18) attached to the base and having a second shorter arm (16) defining a gap (20) for receipt of a brake pedal shaft, said space between the first and second arms defining a slot (22) for receiving the brake pedal shaft (13) and permitting its full extension upward through said shaft; and locking means (32) associated with the second arm for locking the underside of the pedal within the slot (22) such that the brake pedal cannot be depressed.
Patent CA-2309223-A1 (CA)
Title: Ice fishing trap
Inventor: SMOLINSKI KASMIR
IPC: A01K97/01
Filed: 2000-05-23
Abstract: An ice fishing trap is provided to be suspended within an ice fishing hole such that once a fish has been pulled partway through the hole the fish will remain caught even if the fish is freed from the fishing line having initially caught the fish thereon. A collar is suspended within the ice fishing hole by a pair of support arms arranged to rest on a top side of the sheet of ice in which the ice fishing hole is bored. A plurality of gate members are pivotally mounted about a periphery of the collar to extend radially inward therefrom. Each gate member is a wedge shaped member having a blunt end positioned adjacent the centre of the opening of the collar in the closed position. The blunt ends of the gate members are arranged to grip a fish therebetween as they are pivoted upward into an open position to grip the fish even if the fish is only pulled partway therethrough.
Patent CA-2309527-A1 (CA)
Inventor: PENG WANG-HSIN
IPC: H04L12/56
Filed: 2000-05-26
Abstract: A fairness scheme is disclosed for managing data flow between nodes in a bi-directional ring network. A method in accordance with the invention controls the output bandwidth of nodes in a bi-directional ring network by: identifying a congested span comprising a head node having a congested downstream link, and a plurality of chain nodes contributing to the congestion in the downstream link; adjusting the output bandwidth of the head node as a function of the congestion in the downstream link; and adjusting the output bandwidth of the chain nodes as a function of the congestion in the downstream link.
Patent CA-2310393-A1 (CA)
Title: Optimized synchronization preamble structure
Inventor: KONSCHAK TINO
IPC: H04L7/10
Filed: 2000-06-01
Abstract: This proposal describes an optimized synchronization (SYNCH) symbol sequence to be used in transmission systems, which are currently under standardization. The synchronization symbol is constructed using specially designed OFDM  (orthogonal frequency division multiplexing) symbols with an optimized sequence, which is mapped onto the modulated subcarriers. The resulting synchronization symbol consists of several repetitions in the time domain. Using the proposed sequence the resulting synchronization symbol achieves a high timing detection and frequency offset estimation accuracy. Furthermore the burst is optimized to achieve a very low envelope fluctuation (low Peak-to-Average Power Ratio) and a very low dynamic range to reduce complexity on the receiver and to save time and frequency acquisition time in the receiver. The proposed sequence is furthermore optimized with respect to all other synchronization symbols that are used to construct the synchronization and training preambles for the BCCH-DLCHs.
Patent CA-2313707-A1 (CA)
Inventor: TANGE SATORU
IPC: D04H1/70
Filed: 2000-07-11
Abstract: An elastically stretchable composite sheet including an elastic sheet and a fibrous assembly. A fibrous assembly 2 having an inelastic extensibility is bonded to at least one surface of an elastic sheet 3 at intermittently arranged bond regions 4 to form a composite sheet 1. Component fibers 6 constituting the fibrous assembly 2 are long fibers continuously extending and describing curves between each pair of adjacent bond regions 4, 4.
Patent CA-2313961-A1 (CA)
Inventor: GAMBINI PIERO
IPC: H04B10/00
Filed: 2000-07-17
Abstract: A process and device are provided for stabilizing the emission wavelength of an optical source (1), which emits radiation at a first wavelength, by locking to the emission wavelength of an optical reference source (2) which emits radiation at a second wavelength which is substantially different from the first. The stabilization device applies to the source to be stabilized a feedback signal obtained by detection of an optical beat between the two radiations. A  two-photon absorption for the first wavelength is used to generate the beat.
Patent CA-2314425-A1 (CA)
Title: Imidazole derivatives and their use as cytokine inhibitors
Inventor: GALLAGHER TIMOTHY FRANCIS
IPC: A61K31/506
Filed: 1993-01-13
Abstract: Novel 2,4,5-triarylimidazole compounds of formula I and compositions for use in therapy are disclosed:   (see formula I) Such compounds and compositions are useful in treating cytokine mediated diseases.
Patent CA-2315082-A1 (CA)
Title: Process for purifying a solution of an ampicillin pro-drug ester
Inventor: KONBERG ERIK
IPC: C07D499/00
Filed: 1998-12-16
Abstract: A process for purifying a solution of an ampicillin pro-drug, e.g.  bacampicillin, or an acid addition salt thereof, which comprises a step wherein a crude solution thereof is subjected to an evaporation which is controlled by the evaporation rate of the organic solvent such that a continous operation is accomplished for the crystallization of the desired purified pro-drug ester, or salt thereof. Said crystallization is preferably preceded by an aqueous phase extraction and/or an organic phase extraction, both preferably also being performed continuously.
Patent CA-2315632-A1 (CA)
Title: Genetic procedure for the allocation of elevator calls
Inventor: YLINEN JARI
IPC: B66B1/20
Filed: 1998-12-23
Abstract: Genetic procedure for the allocation of calls issued via the landing call devices of elevators comprised in a multi-deck elevator group, in which procedure a multi-deck elevator model is formed in which the limitations of and rules of behaviour for each elevator in the multi-deck elevator group and each car of each elevator are defined; a plurality of allocation options, or chromosomes are formed, each of which contains a car data item and an elevator direction data item for each active landing call, and these data, or genes, together define a car to serve each landing call as well as a collective control direction for the elevator; for each chromosome, a fitness function value is determined; one or more of the chromosomes are selected and altered in respect of at least one gene to form one or more new chromosomes; fitness function values are determined for the new chromosomes; the process of altering the chromosomes, selecting chromosomes and determining fitness functions is continued until a termination criterion is met and, based on the fitness function values, the most suitable chromosome is selected and the calls are allocated to the elevators and cars in the elevator group in accordance with this solution.
Patent CA-2316300-A1 (CA)
Title: Appareil pour detecter des defauts
Inventor: WLODARSKI WOJCIECH
IPC: G01N21/952
Filed: 1999-04-19
Abstract: L'invention concerne un appareil (20) permettant de détecter des défauts sur la surface extérieure d'un corps allongé, en particulier un câble revêtu d'émail (W). L'appareil (20) de cette invention comprend : une tête optique (22) que traverse le corps (W), cette tête optique (22) étant pourvue d'organes (35) destinés à émettre de la lumière en direction de ce corps ; et des organes (45) permettant de recueillir la lumière réfléchie par ledit corps, ainsi que des organes surveillant toute modification de cette lumière, afin de pouvoir indiquer la présence d'éventuels défauts. Cet appareil utilise enfin un ordinateur (60), de manière à enregistrer ces défauts, leurs caractéristiques, et leur emplacement sur la longueur du corps allongé.
Patent CA-2316883-A1 (CA)
Title: Aperiodic encryption for digital data
Inventor: PELANTOVA EDITA
IPC: H04L9/26
Filed: 2000-06-08
Abstract: For stream or block ciphers, a sequence generator using a quasi-crystal function is used to prepare an encryption or decryption pad. Various techniques for generating purely aperiodic sequences using quasi-crystal functions are available, including geometric, algebraic and symbolic substitution. The aperiodic sequence is generated using minimal processing power, and generation may continue for extended periods of time in the case of long messages or extended period encryption of a data transmission channel.
Patent CA-2316991-A1 (CA)
Title: Purification of tramadol
Inventor: MITCHELL MELVILLE
IPC: C07C213/10
Filed: 1999-01-14
Abstract: A process for the preparation of Tramadol according to a Grignard reaction of 2(dimethylaminomethyl)cyclo-hexanone with the reagent 3-methoxyphenylMgX, where X is a halogen, to obtain the crude base which is then introduced to a solvent, comprises contacting the crude base with hydrobromic or hydriodic acid to form a salt thereof, and subjecting the salt to a re-crystallisation step to obtain the product Tramadol hydrobromide or Tramadol hydriodide respectively, from which purified Tramadol base is obtainable for optional conversion to a pharmaceutically preferred form e.g. Tramadol hydrochloride.
Patent CA-2319160-A1 (CA)
Inventor: GOODMAN SIMON
IPC: C12N5/10
Filed: 1999-01-11
Abstract: L'invention concerne un nouvel anticorps monoclonal et une lignée cellulaire d'hybridome produisant ledit anticorps. L'anticorps monoclonal, dont une forme de réalisation préférée est appelée 14D9.F8, présente les propriétés suivantes: il ne réagit qu'avec la chaîne .alpha.v des intégrines .alpha.v humaine; et il inhibe de façon sélective la fixation au substrat d'intégrine fibronectine de la cellule portant l'intégrine .alpha.v.beta.6.
Patent CA-2321482-A1 (CA)
Inventor: WARENIUS HILMAR MEEK
IPC: G01N33/68
Filed: 1999-02-18
Abstract: Provided is a method for the diagnosis of a cancerous or pre-cancerous state in a subject, comprising testing a sample comprising cells or an extract therefrom for the co-elevation of CDK1 and CDK4. Also provided is a kit for the diagnosis of a cancerous or pre-cancerous state in a subject, comprising:  (i) a means for testing for the elevation of CDK1; and (ii) a means for testing for the elevation of CDK4.
Patent CA-2322645-A1 (CA)
Title: Desensitizing dental composition
Inventor: GALLI GIOVANNA
IPC: A61K8/36
Filed: 1998-05-20
Abstract: A dental composition for the treatment of dentinal hypersensitivity and in particular for the desensitization of exposed dentin, the desensitizing treatment of deep cavities, the desensitizing treatment when replacing dental layers, the stumps desensitizing treatment before placing dental prosthesis.  The composition can be used as a solution or as a gel. In the first case two distinct liquid solutions for use successively on the exposed dentin are provided for. In the second case two distinct gel compounds spread successively on the exposed dentin are provided for. The first solution or the first gel compound comprises preferably three soluble potassium salts, whereas the second solution or the second gel compound comprises a calcium salt and a soluble strontium salt. In a preferred composition two solutions are provided for of which the first has solutes comprising potassium phosphate, potassium carbonate and potassium fluoride, and the second solution has solutes comprising calcium chloride and strontium chloride. For the gel composition, which may be used as toothpaste, two distinct gel compounds are provided, the first having solutes comprising potassium phosphate, potassium carbonate and potassium fluoride and the second gel compound having solutes comprising calcium chloride and strontium chloride.
Patent CA-2324687-A1 (CA)
Inventor: TOSCONI JAMES J
IPC: B60H1/26
Filed: 2000-10-30
Abstract: A vehicle ventilation system mounted to the upper portion of the exterior structure of a vehicle's occupant cabin. The components of the exterior structure of the occupant cabin define an opening through the exterior structure of the occupant cabin in the upper portion of the occupant cabin. A duct is mounted to the exterior structure of the occupant cabin and has a first end in fluid communication with the opening in the exterior structure of the occupant cabin. A second end of the duct is positioned below the first end of the duct and is open to and in fluid communication with the outside atmosphere. A fan is mounted to the exterior structure of the occupant cabin and is positioned such that when in operation it can be operated to move air through the opening in the exterior structure of the occupant cabin. The fan is controllable to change the rate and direction of the flow of air which it creates. A first rotary damper is mounted over the opening in the exterior structure of the occupant cabin and can be selectively opened or closed to allow or prevent air flow through the opening in the exterior structure of the occupant cabin. A second damper is mounted in a position such that it radially surrounds the impeller of the fan and can be used to control the flow of air radially outward from or radially inward toward the impeller of the fan.
Patent CA-2326614-A1 (CA)
Inventor: ILENCHUK THEODORE TONEY
IPC: A61K31/13
Filed: 1999-04-06
Abstract: This invention provides for the use of non-toxic polyamines in the palliative treatment of chronic diseases and disorders of epithelial tissue. The effectiveness of treatment is evidenced by alleviation of symptoms and disorders manifesting in epithelial tissue such as skin, including pruritus, erythema, pain, parastesia and general discomfort, due to the topical administration of certain polyamines. Such symptoms arise from and/or are associated with chronic conditions such as: (i) skin diseases such as inflammatory dermatoses which include atopic and contact eczema, including xerosis such as dry skin and Winter itch; (ii) infection of epithelial tissue (eg. nasal, vulvar or anal passages) with trichomonas or fungi, anal fissures, fistula discharge, wound effluent, or surgical wound drainage; (iii) "secondary disease" in which epithelial tissue exhibits manifestations of the primary underlying disease such as AIDS, chicken pox and metabolic disorders (i.e., diabetes, hepatic and kidney dysfunction and hematopoesis); and (iv) disorders arising out of direct insult to the epithelial tissue following natural (local tumors, hemorrhoids) or surgical intervention and accompanying scar formation or radiation therapy.
Patent CA-2331550-A1 (CA)
Inventor: DE LA CONCHA ESTRADA ERNESTO
IPC: C04B18/30
Filed: 1999-04-30
Abstract: The present invention relates to a method for eliminating rubbish and comprising the following steps: transporting the rubbish on a transporter device; selecting the recycled rubbish and the rigid metals from the non recyclable rubbish material; removing the recycled rubbish and the rigid metal; supplying the non recyclable rubbish to a grinding device; grinding the non recyclable rubbish; mixing the ground rubbish with other components; and forming the construction element. The present invention also relates to an ecological mixture for the construction which comprises, approximately, from 5 % to 50 % of cement; from 0 % to 40 % of sand; from 0 % to 40 % of gravel; from 30 % to 95 % of ground rubbish; and water in sufficient quantity to form the ecological mixture for the building industry.
Patent CA-2338522-A1 (CA)
Inventor: LINDAHL RICHARD W
IPC: H01Q9/16
Filed: 1999-08-05
Abstract: The invention relates to the use of RFID systems for use with items of interest having RFID tags, such as in a library. The invention has particular applicability to determining the location, order, and other information regarding such items.
Patent CA-2343321-A1 (CA)
Title: Pharmaceutical composition for the pre-treatment of a patient in need of drug or pro-drug
Inventor: SLANETZ ALFRED
IPC: C12N9/10
Filed: 1999-09-21
Abstract: Provided are pharmaceutical compositions for the pre-treatment of a patient in need of a drug or a pro-drug wherein said drug or pro-drug is over or under metabolized in said patient, and uses of such pharmaceutical composition.</S DOAB>