baber/WOPTO huggingface dataset:
Patent CA-2209095-C (CA)
Title: Distribution and controlled use of software products
Inventor: LAROSE GORDON EDWARD
IPC: G06F21/12
Filed: 1997-06-27
Granted: 2001-02-20
Abstract: A software product is modified so that it can be freely distributed while limiting its use to authorized subscribers. The modification includes replacing calls to relocatable subroutines in the software product by calls to redirection software, which is added to the software product together with authorizing software. A table of information on the replaced calls is supplied securely to an authorization agent, with which the authorizing software communicates on execution of the modified software product. An authorized subscriber supplies local data specific to its environment to the authorization agent, which encodes the table in dependence upon the local data and the authorizing software and supplies it to the authorized subscriber. Tampering with the authorizing software, or different local data of others, prevents use of the table. The redirection software decodes a target address for each replaced call during execution of the software, without decoding of the table or restoring the software to its original form. Alternatively, the redirection software can be supplied to the authorized subscriber by the authorization agent.
Patent CA-2211792-C (CA)
Title: Coated gut suture
Inventor: TOTAKURA NAGABHUSHANAM
IPC: C09D167/04
Filed: 1997-07-29
Granted: 2005-05-31
Abstract: A coated gut suture is prepared by applying a moisture-retaining substance to the gut suture, followed by coating the suture with a synthetic bioabsorbable polymer. A particularly useful moisture-retaining substance is glycerol. The synthetic bioabsorbable polymer contains a epsilon-caprolactone as the major constituent. The gut suture can be packed in the absence of conventional tubing fluid while retaining flexibility, pliability, and resistance to fray.
Patent CA-2217583-C (CA)
Title: Electronic article surveillance system with adaptive filtering and digital detection
Inventor: RUDE MICHAEL J
IPC: G08B13/24
Filed: 1996-03-19
Granted: 2005-05-24
Abstract: An electronic article surveillance (EAS) system includes an asynchronous noi se suppression adaptive filter which removes asynchronous interference from the signal of interest with minimum distortio n of the transients emitted when a sensitized tag is interrogated. The system also includes a synchronous noise suppression filter which remove s interrogation synchronous noise from the signal of interest. The resulting EAS system increases the likelihood that a sensitized tag will be detected when one is present and reduces the occurence of false alarms.
Patent CA-2219363-C (CA)
Title: Cales d'empilage formees
Inventor: DAVIS A EUGENE
IPC: B29C67/00
Filed: 1996-04-29
Granted: 2006-11-07
Abstract: La présente invention concerne des cales d'empilage formées (100) constituées d'un tube de plastique (100) à section circulaire et deux ensembles opposés constitués de plusieurs dépressions (130) de forme cylindrique, généralement espacés pour permettre l'empilement d'articles.
Patent CA-2220898-C (CA)
Inventor: PARTRIDGE B WARING III
IPC: H04M3/12
Filed: 1997-11-12
Granted: 2000-12-26
Abstract: Systems and methods for providing a communications path through a selected communications network in the event of a transmission failure on the initial, real-time, communications network are presented. The selected network operates in a non-real-time manner and is configured such that communications may be scheduled for transfer, rather than requiring instantaneous access. The use of the selected network reduces both the loading of and access costs to the real-time network. For example, a user who places an unanswered long-distance call may leave a message for a recipient, and that message is transferred to therecipient over the alternate network as time is available on the network, ratherthan over the primary long-distance voice network. The selected network may be a network that is entirely separate from the real-time network or the "two" networks may be a single coextensive network having voice and data attributes.
Patent CA-2222198-C (CA)
Title: Data dissemination system
Inventor: MASSE DENIS
IPC: H04N7/08
Filed: 1996-06-03
Granted: 2007-09-25
Abstract: The invention relates to a system for broadcasting data (D), said information being transmitted in the pass-band of a broadcast audio frequency signal (S), characterized in that it comprises means for determining in at least one frequency band (F'13, ..., F'24) of the amplitude (A'13, ..., A'24) of the audio frequency signal (S) and for comparing said amplitude with an audio mask level (Nm(13), ..., Nm(24)) associated to said frequency band, means for removing frequency components from the audio frequency signal in said frequency band if the amplitude of the signal is lower than the audio mask level of said band, and means for inserting said data in said frequency band at a level lower than or equal to the audio mask level of said frequency band.
Patent CA-2222745-C (CA)
Inventor: COLGAN DAVID LEE
IPC: A01B35/18
Filed: 1997-12-23
Granted: 2002-03-19
Abstract: ROLLING CULTIVATOR SHIELD ABSTRACT OF THE DISCLOSURE   A large diameter, short toothed rolling shield fabricated by vacuum forming talc filled polyethylene sheet having a smooth surface and sufficient flexibility to resist soil build-up in damp conditions. Preferably the diameter of the shield is substantially greater than twenty inches and on the order of twenty four inches and includes teeth uniformly spaced around the periphery, each tooth having a length less than approximately ten percent of the shield radius. A circular rib near the center of the shield and radial reinforcing ribs extending from the circular rib on the convex side of the shield to the base of alternating teeth provide stiffness and strength. The concave tool side of the shield is devoid of protrusions to reduce churning of thrown soil.
Patent CA-2222917-C (CA)
Title: Metallocenes, their preparation and use in the polymerization of alpha-olefins
Inventor: BORSOTTI GIAMPIETRO
IPC: C08F210/16
Filed: 1997-12-18
Granted: 2008-07-15
Abstract: Catalytic component for the copolymerization of ethylene with alpha-olefins having general formula (I): (see formula I) wherein: A is a cyclopentadienyl derivative having general formula (II) (see formula II) B is selected from: 1) any of the cyclopentadienyl derivatives A defined above 2) a monofunctional cyclopentadienyl radical (F) selected from cyclopentadienyl, indenyl, fluorenyl and the relative alkyl, aryl, trialkylsilyl substituted derivatives; Q, a bridge between A and B, is a bifunctional radical.
Patent CA-2224300-C (CA)
Title: Discharge lamp driving bridge circuit
Inventor: UCHIHASHI KIYOAKI
IPC: H05B41/24
Filed: 1997-12-10
Granted: 2007-01-02
Abstract: A discharge lamp driving circuit includes DC voltage input connections, lamp driving connections, bridge circuitry, and control circuitry. The bridge circuitry is connected to the DC voltage input connections and to the lamp driving connections and includes circuit elements which in one mode of operation deliver a higher frequency AC voltage to the lamp driving connections and in another mode of operation deliver a lower frequency AC voltage to the lamp driving connections. The control circuitry is connected to control the bridge circuitry selectively as either a half-bridge to deliver the higher frequency AC voltage to the lamp driving connections during starting or a full-bridge to deliver only the lower frequency AC operating voltage to the lamp while the lamp is operating normally after starting. A low frequency driver and a high frequency driver are connected to drive the bridge circuitry.
Patent CA-2225755-C (CA)
Title: Multi-activity offshore exploration and/or development drilling method and apparatus
Inventor: SCOTT ROBERT J
IPC: E21B7/12
Filed: 1997-01-27
Granted: 2002-06-11
Abstract: A multi-activity drillship (30) method and apparatus having a single derrick  (40) and multiple tubular activity stations within the derrick (40) wherein primary drilling activity may be conducted from the derrick (40) and simultaneously auxiliary drilling activity may be conducted from the same derrick (40) to reduce the length of the primary drilling activiy critical path.
Patent CA-2227130-C (CA)
Inventor: BUHR TERRY J
IPC: E06B9/54
Filed: 1998-01-15
Granted: 2001-04-03
Abstract: A preferred fenestration assembly includes a roll  screen and a guide body presenting channels for receiving the respective side edges of the screen.  During movement of the screen toward the closed position, the side edges are gripped between a shiftable gripper and gripping  surfaces  of  the  guide body.    The  gripping components are configured to release the side edges if excessive force is applied to the screen to prevent damage while retaining the side edges with a minimum level of force to withstand wind loading.
Patent CA-2227692-C (CA)
Title: Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces
Inventor: PEDERSEN STEVEN KRISTIAN
IPC: B01D65/02
Filed: 1996-08-08
Granted: 2001-04-17
Abstract: A vertical skein of "fibers", opposed terminal portions of which are held in headers unconfined in a modular shell, is aerated with a gas-distribution means which produces a mass of bubbles serving the function of a scrub-brush for the outer surfaces of the fibers. The membrane device is surprisingly effective with relatively little cleansing gas, the flux through the membranes reaching an essentially constant relatively high value because the vertical deployment of fibers allows bubbles to rise upwards along the outer surfaces of the fibers. Further, bubbles flowing along the outer surfaces of the fibers make the fibers surprisingly resistant to being fouled by build-up of deposits of inanimate particles or microorganisms in the substrate provided that the length of each fiber is only slightly greater than the direct center-to-center distance between opposed faces of the headers, preferably in the range from at least 0.1 % to about 5 % greater. For use in a large reservoir, a bank of skeins is used with a gas distributor means; each skein has fibers preferably > 0.5 meter long, which together provide a surface area > 10 m2. The terminal end portions of fibers in each novel header are kept free from fiber-to-fiber contact with a novel method of potting fibers.
Patent CA-2228154-C (CA)
Inventor: EDLINGER ALFRED
IPC: C04B5/06
Filed: 1997-06-03
Granted: 2002-01-15
Abstract: Disclosed is a process for producing pig iron alloys and at least one member selected from the croup consisting of pozzolanes, synthetic blast furnace slaps, belite and alite clinkers from oxidic liquid slag, the process comprising reducing the oxidic liquid slag above an iron bath in a reactor containing submerged tuyeres, while blowing carbon through the submerged tuyeres and into the iron bath to maintain the iron bath at a carbon content of between 2.5 wt% and 4.6 wt%. Also disclosed is an apparatus for producing pig iron alloys and at least one member selected from the group consisting of pozzolanes, synthetic blast furnace slaps, belite and alite clinkers from oxidic liquid slag positioned above an iron bath, the apparatus comprising a bottom-blowing converter comprising submerged tuyeres for blowing carbon into the iron bath, the bottom-blowing converter having a tapering base region which receives the iron bath and a height corresponding to that of the iron bath. The apparatus also comprises at least one foam-detecting probe for detecting formation of foam in the bottom-blowing converter and for determining at least one factor selected from the group consisting of the concentration of carbon within the iron bath, the temperature of the oxidic liquid slag, and the temperature of a gas space within the bottom-blowing converter and generating signals based on the factor. A control circuit is provided for receiving the signals and controlling an amount of carbon in the iron bath to maintain the carbon content between 2.5 wt% and 4.6 wt%.
Patent CA-2231603-C (CA)
Title: Interleukine-15 du poulet et ses utilisations
Inventor: SMITH DAVID I
IPC: A61K39/17
Filed: 1996-10-10
Granted: 2009-04-21
Abstract: La présente invention concerne de l'ADN isolé et purifié codant l'interleukine-15 (IL-15) d'origine aviaire, ainsi que des vecteurs de clonage et d'expression comprenant de l'ADN à IL-15 et des cellules transformées au moyen de vecteurs codant l'IL-15. L'invention concerne également un polypeptide isolé et purifié de l'IL-15 d'origine aviaire, lequel polypeptide a la possibilité de simuler des lymphocytes T d'origine aviaire rendus actifs par un mitogène. L'invention concerne aussi un procédé permettant de renforcer chez la volaille une réponse immunitaire à un immunogène par administration de l'immunogène avant, après, ou en même temps que l'IL-15. L'invention concerne enfin un vaccin permettant d'induire chez la volaille des réponses immunitaires à un immunogène, ce vaccin comprenant ledit immunogène et une quantité suffisante d'IL-15 d'origine aviaire.
Patent CA-2237283-C (CA)
Inventor: TARDIF PIERRE
IPC: A01G27/04
Filed: 1998-05-08
Granted: 2003-03-18
Abstract: The invention relates to a capillary carpet irrigation system which includes a water bearing capillary carpet disposed on a supporting surface and a plurality of water  permeable  pots  resting  upon  and  in  hydraulic connection with the carpet.   The pots contain growing medium and roots of plants.   Conventional irrigation equipment supplies water to the carpet.   A four layer capillary  carpet  includes:  a water  impermeable  base membrane  of  polyethylene;   and  a  water  permeable microperforated dark coloured top membrane. Between the top and base membranes two water bearing capillary mats  are  supplied  with  water  from  the  irrigation equipment.   The base membrane prevents water seepage into   the   underlying   soil    substrate.       The microperforated top membrane permits passage of water into the carpet while inhibiting evaporation and weed growth.  The dark colour also inhibits algae growth in the  mats.    The  fine  pore  rigid  capillary  mat  is disposed  upon  the  base  membrane  and  is  capable  of receiving water  from the  irrigation equipment.    The rigid mat is relatively stiff and can retain a selected hydraulic transmissivity while supporting the weight of the pots.   A resilient coarse pore capillary mat is disposed  upon  the  rigid  mat  and  beneath  the  top membrane.     The  compressible  mat   is   resiliently compressible  locally under each pot thus  defining  a plurality  of  localized  capillary  action  conduits between  the  rigid mat  and each water  permeable pot through  the  permeable  top  membrane.    The  resilient coarse mat when uncompressed has a negligible capillary rise and serves to inhibit evaporative water loss from the  underlying  rigid  mat.     The  pores   of  the compressible  mat  impede  air  circulation  immediately above the upper  surface of water held in the water bearing rigid mat.  The air within the compressible mat pores immediately above the rigid mat therefore have a high humidity.  Air circulation within the compressible mat is impeded by the inherent resistance of the porous structure.  Thus, water vapour escape from the water surface in the rigid mat through the perforations of the top membrane is impeded reducing evaporative water loss.  To impede root growth from the pots into the top membrane and porous mats, a root growth biobarrier is disposed within each pot.
Patent CA-2237476-C (CA)
Inventor: VON OEPEN RANDOLF
IPC: A61F2/06
Filed: 1998-05-13
Granted: 2006-01-03
Abstract: A coronary stent according to the present invention has a flexible tip which allows it to follow the winding of vessels when inserted into a patient's body. The stent comprises a tubular body having walls of a web structure. The web structure defines a series of cells. The cells of the web structure are of a configuration to provide the flexible tip while also allowing easy and reliable expansion of the stent.
Patent CA-2239520-C (CA)
Title: Utilisation de 1-hydroxy-2-pyridones pour traiter des maladies affectant les muqueuses, difficiles a traiter
Inventor: BOHN MANFRED
IPC: A61P31/10
Filed: 1996-11-21
Granted: 2006-01-17
Abstract: L'invention concerne des 1-hydroxy-2-pyridones pour le traitement de maladies affectant les muqueuses, difficiles à traiter. Le composé de la formule (I) est adapté à la production de médicaments destinés au traitement de mycoses provoquées par les champignons résistants à l'azole.
Patent CA-2239560-C (CA)
Inventor: OLIFF JAMES R
IPC: B65D5/468
Filed: 1998-06-03
Granted: 2002-04-02
Abstract: A carton (10) has opposing side walls (22, 24) adjoining top (66, 46) and bottom (14) walls forming the tube portion of the carton (10).  Opposing end closures adjoin the end portions of the tube.  The top wall (46, 66) of the carton is multiple-ply with the inner-most ply (46) having a drop-down separator panel (48).  The separator panel (48) has a configuration and placement which is compatible with an opening feature formed in the outer-most ply (66).
Patent CA-2240953-C (CA)
Inventor: WHALEY CHRISTOPHER
IPC: C11D1/44
Filed: 1996-11-06
Granted: 2004-01-20
Abstract: A fabric conditioning composition comprising: i) a quaternary ammonium fabri c softening compound containing at least one ester group and; ii) a polymeric nonionic surfactant with a molecular weight of le ss than 15,000 and having two long chain alkyl groups in which the two long chains are separated from each other by a hydrophilic moiety.</ SDOAB>
Patent CA-2241396-C (CA)
Inventor: SALMANIAN MAZDA
IPC: H04M3/493
Filed: 1998-06-23
Granted: 2003-02-25
Abstract: A method of processing telephone calls comprising: receiving and storing a directory number of a called party with reference to a calling party, allocating a charge for the call on a billing list of a calling party, receiving a first signal from the calling party indicating a request for credit of the charge, automatically looking up data from the billing list to check against at least one predetermined criterion to determine whether the credit appears to be justified, upon receipt of the first signal, automatically applying the credit to the billing list in the event the at least one criterion is met, and automatically announcing the credit to the calling party, and automatically denying the credit in the event the at least one criterion is not met, and automatically announcing the denial to the calling party.
Patent CA-2244903-C (CA)
Inventor: JACOBSEN E JON
IPC: A61K31/495
Filed: 1997-03-03
Granted: 2006-05-16
Abstract: The present invention provides novel hydroxamic acid derivatives represented by the compound of formula (I), or pharmaceutical acceptable salts thereof, wherein the compounds of the present invention inhibit various enzymes from the matrix metalloproteinase family, including collagenase, stromelysin, and gelatinase, and hence are useful for the treatment of matrix metallo endoproteinase diseases such as osteoarthrits, rheumatoid arthritis, septic arthritis, osteopenias such as osteoporosis, tumor metastasis (invasion and growth), periodontitis, gingivitis, corneal ulceration, dermal ulceration, gastric ulceration, and other diseases related to connective tissue degradation.
Patent CA-2245188-C (CA)
Inventor: NGO CHIU
IPC: H04Q7/30
Filed: 1997-12-01
Granted: 2005-11-22
Abstract: A method and apparatus for communicating control signals via short energy bursts during a predetermined time interval. This method and apparatus is particularly well suited for wireless communication networks wherein the time intervals are assigned to each station on the network, and the presence of energy in that time interval signals a control signal to or from that station.
Patent CA-2251230-C (CA)
Title: Dispositif rotatif de dispersion de gaz pour le traitement d'un bain d'aluminium liquide
Inventor: LE BRUN PIERRE
IPC: F27D27/00
Filed: 1997-07-23
Granted: 2002-07-09
Abstract: L'invention concerne un dispositif rotatif de dispersion de gaz dans une cuv e de traitement de l'aluminium liquide. Le dispositif permet de réduire agitation de surface, projections et vortex tout en maintenant l'efficacité du traitement. Le dispositif comporte un rotor (1) constitué d'un ensemble de pales (5) surmontées d'un disque (4) sensiblement plat. L'injection de gaz e st effectuée à travers le moyeu central et des orifices latéraux (10) situés entre les pales. Le ratio entre le diamètre extérieur du rotor et le diamètr e de son moyeu central est compris entre 1,5 et 4.
Patent CA-2252913-C (CA)
Title: Percutaneous catheter directed intravascular occlusion devices
Inventor: AMPLATZ CURTIS
IPC: B21F45/00
Filed: 1997-04-14
Granted: 2002-06-25
Abstract: This invention is an intravascular occlusion device (10) for Atrial Septal Defects (ASD), and Patent Ductus Arteriosus (PDA) treatment. The device (10) is constructed of resilient metal fabric (14, 14'), and is capable of assuming both an expanded configuration and a collapsed configuration. Once expelled out of a delivery catheter (314) the device returns to its expanded configuration in either a generally barbell configuration or a generally bell-shaped configuration.
Patent CA-2257432-C (CA)
Inventor: BAKKE STIG
IPC: E21B31/113
Filed: 1997-06-06
Granted: 2005-05-10
Abstract: Procédé destiné à résoudre les problèmes de frottement entre un tube spiralé et la paroi d'un puits, un puits de pétrole ou de gaz, et destiné à permettre l'application d'une énergie de choc afin de débloquer les objets bloqués dans un puits. On applique une pression variable à un liquide s'écoulant dans le tube spiralé par coupures périodiques de l'écoulement de liquide au niveau ou près de la sortie du tube spiralé. On applique des changements de pression, des à-coups de pression, au moyen d'un dispositif de soupape comprenant un corps (31) de soupape agencé pour assurer l'étanchéité contre un siège (45) de soupape et pour couper l'écoulement d'eau lorsque le débit dépasse une valeur prédéterminée, et également pour rester fermé jusqu'à ce que la pression régnant dans le liquide situé en amont du corps (31) de soupape soit inférieure à une valeur prédéterminée. Le dispositif se caractérise en ce que le corps (31) de soupape présente une coulisse (3) agencée dans celui-ci, laquelle est disposée pour ouvrir le passage à un flux de liquide au-delà du corps (31) de soupape, afin de réduire ainsi la pression dans le liquide se trouvant en amont du corps (31) de soupape lorsque la pression dans le liquide situé en amont du corps (31) de soupape dépasse une valeur prédéterminée. Un dispositif d'amortissement dans lequel des pistions se présentant sous la forme de colliers (25, 26), de voies (27, 28) et de clapets de retenue (29, 30) sont déplacés dans des espaces annulaires (17, 18, 19) remplis de liquide, contribue à fermer suffisamment longtemps le dispositif de soupape afin de faire passer la montée de pression dans le liquide se trouvant dans le tube spiralé, et à l'ouvrir suffisamment longtemps pour établir un écoulement de liquide total avant la coupure suivante.
Patent CA-2258360-C (CA)
Title: Coupon monitor for cathodic protection system
Inventor: CAUDILL DAN L
IPC: G01N27/12
Filed: 1999-01-11
Granted: 2001-10-23
Abstract: An automated coupon monitor for detecting the electrical parameters associated with a pipe, a coupon and a reference electrode utilized with a cathodic protection system. A voltage detector circuit has its output applied to a pair of sample and hold circuits, one for recording E OFF and the other for recording E ON. Series connected between the coupon and the pipe is a zero resistance current detector circuit and an interrupter switch for measuring the pipe-coupon current and periodically interrupting that current to permit measurement, sampling and storing of E OFF. The sample and hold circuits and the interrupter switch are controlled by a microprocessor controller. The circuit provides DC level outputs which can be easily read by a digital multimeter or stored in a data logger for subsequent reading or transmission to another location.